JP4803593B2 - Folding soil crusher - Google Patents

Description

  The present invention relates to a soil crushing device that performs crushing, crushed soil, and the like that is attached to a traveling vehicle such as a tractor. The present invention relates to a collapsible earth crushing apparatus that can perform crushed soil work with left and right side work bodies, which are parts, and that each side work work body can be folded and traveled toward a central work body side.

  In the foldable soil breaker, a foldable soil breaker having a central working body that is a central part and side working bodies that are left and right extended parts, and a structure that folds the left and right side working bodies to the central working body side, Various things are known conventionally. And, in the folding type crushed soil device, in the side work body that can be made compact by folding it against the central work body, the leveling plate attached to the side work body and performing the leveling work at the time of tillage work is rotated up and down. There are also various methods for restricting rotation or sagging in the folded state.

For example, there is “agricultural machine” (Japanese Patent Laid-Open No. 2004-89011, hereinafter referred to as Conventional Example 1).
And, as shown in FIGS. 14 and 15, the farm work machine 111 shown in the conventional example 1 is a three-part type that is elongated in the left-right direction, and a work machine main body 113 that performs tillage leveling work is provided at the center. A pair of left and right extension working bodies 114, 114 capable of tillage leveling work are provided at both ends of the work machine main body 113. The extension work body 114 can be switched between the expanded state and the folded state with respect to the work machine main body 113, and the tilling work can be performed together with the work machine main body 113 in the developed state body.

The work machine body 113 and the extended work body 114 are provided with a machine frame 121 and an extended machine frame 131, respectively. The machine frame 121 is capable of moving the work machine main body 113 up and down via a three-point link mechanism at the rear of a traveling vehicle such as a tractor. In addition, an extension machine frame 131 is provided at the outer end of the central machine frame 121 so as to be vertically rotatable via a rotation center shaft 115.
The extension machine frame 131 is provided with an extended tillage body 133 that can be rotated by receiving power from the work machine main body 113, and further includes a first extension leveling body 134 so as to be an upper part of the extension machine frame 131. ing. The first extended leveling body 134 is provided on a rotation shaft 135 provided in the left-right direction of the extension machine frame 131 so as to be vertically rotatable, and can be vertically rotated. Further, a second extended leveling body 136 is provided on the first extended leveling body 134 so as to be rotatable up and down on a rotation shaft 137 provided in the left-right direction of the extended leveling body 134.

And as shown in FIG. 16, the inner end part of the extension machine frame 131 and the inner end part of the 2nd extension leveling body 136 are mutually connected by the connection body 141 which is a connection mechanism. Further, the base end portion of the first connecting arm 143 is pivotally supported on a first support shaft 151 provided on the extension machine frame 131 so as to be rotatable with respect to the extension machine frame 131. The front end portion of the second connecting arm 144 is connected to the other end portion of the first support shaft 151 via the second support shaft 152 so as to be rotatable. The rear end portion (the other end portion) of the second connecting arm 144 is connected to the inner end portion of the second extended leveling body 136 so as to be rotatable via a third support shaft 153 in the left-right direction. is there. That is, the first extension leveling body 134, the first extension leveling body 134, the first support level 151 serving as the base end of the first connecting arm 143, and the pivot shaft 135 that supports the first extension leveling body 134 as a base point. The two extended leveling bodies 136, the second connecting arm 144, and the first connecting arm 143 form a link mechanism, and the first extended leveling body 134 and the second extended leveling body 136 are rotatable.
The extension work body 114 configured in this way is, together with the first leveling body 124 and the second leveling body 126 provided in the work machine main body 113, at the time of work, that is, when deployed, respectively, The extended leveling body 136 can press the work surface appropriately to level the ground.

  On the other hand, when the extension work body 114 is not used, the extension work body 114 is folded to make it compact. However, the first extension leveling body 134, the second extension leveling body 136, and the second extension leveling body 136 constituting the link mechanism are used. Since the two connection arms 144 and the first connection arm 143 move due to their own weights, it is necessary to suppress these movements and to fix them. In Conventional Example 1, the second connection arm 144 and the first connection arm 143 are locked to the second connection arm 144. Thus, the movement of the first extended leveling body 134, the second extended leveling body 136, the second connection arm 144, and the entire first connection arm 143 is suppressed by suppressing the movement of the second connection arm 144. . That is, the contact support 156 is rotatably provided on the support frame 155 that is fixed to the inner end of the extension machine frame 131.

The abutting support 156 has a first abutting portion 156a that is detachable with respect to an intermediate portion of the first connecting arm 143 of the connecting body 141 on one side and is formed in a substantially L shape. A second abutting portion 156b that can be brought into contact with and separated from the abutting portion 161 of the frame 121 is formed in a substantially arc shape. The contact support 156 is biased by a torsion spring 162.
By providing the contact support 156 in this manner, when the extension work body 114 is folded, the first contact portion 156a of the contact support 156 is biased by the biasing force of the torsion spring 162, as shown in FIG. However, it is locked to the first connecting arm 143.

On the other hand, when the extended working body 114 is in the unfolded state from the time of folding to the time of use, the locking of the contact support 156 must be released.
Therefore, in Conventional Example 1, as shown in FIG. 18, a contact portion 161 is fixedly provided on the outer end side of the machine frame 121 of the work machine body 113, and the contact portion 161 and the contact support body 156 are in contact with each other. The lock is released by touching. Specifically, the contact support 156 contacts the second contact portion 156b in the middle of the extended working body 114 from the folded state to the expanded state (a position close to the substantially expanded state). Then, the second abutting portion 156b further approaches the deployed state due to the weight of the extension work body 114, so that the first abutting portion 156a is in contact with the first connecting arm 143 against the biasing force of the torsion spring 162. When it is rotated in the direction to release the locking and eventually becomes a deployed state, the locking between the first contact portion 156a and the first connecting arm 143 is completely released.
As a result, when the extension work body 114 is used, the first extension leveling body 134, the second extension leveling body 136, the second connection arm 144, and the first connection arm 143 constituting the link mechanism become rotatable. The first extended leveling body 134 and the second extended leveling body 136 function to perform leveling.

  When the extended working body 114 is changed from the expanded state to the folded state, the contact between the contact support 156 and the contact portion 161 is released in the middle of the extension work body 114 so that the first contact support 156 has a first contact. The contact portion 156a is locked again with the first connection arm 143, and the movement of the link mechanism formed by the first extension leveling body 134, the second extension leveling body 136, the second connection arm 144, and the first connection arm 143 is performed. Suppress.

On the other hand, the applicant invented the “Crushing Device” (Japanese Patent Application No. 2005-346487, hereinafter referred to as Conventional Example 2).
As shown in FIG. 19, the working machine main body 201 of the soil breaking device according to the conventional example 2 includes the first leveling plate 202 and the second extended leveling corresponding to the first extended leveling body 134 as in the conventional example 1. A second leveling plate 203 corresponding to the body 136 is provided. As in the conventional example 1, one end of the first leveling plate 202 is pivotally locked to the work machine body 201, and the other end is pivotally connected to one end of the second leveling plate 203. ing.
Further, a leveling plate link mechanism 204 is provided at the other end of the second leveling plate 203 so as to be rotatable with respect to the work implement body 201. The leveling plate link mechanism 204 includes a first link 240 and a second link 241, and the first link 240 and the second link 241 are rotatably connected to each other at the end portions. The other end of the first link 240 is rotatably connected to the work machine body 201, and the other end of the second link 241 is the end of the second leveling plate 203 on the side not connected to the first leveling plate 202. (The other end) is rotatably connected.
As described above, in Conventional Example 2, the first leveling plate 202 and the second link 241 are rotatable in the vertical direction by the link mechanism as in Conventional Example 1.

Further, in the conventional example 2, the link mechanism constituted by the first leveling plate 202, the second link 241 and the leveling plate link mechanism 204 is only the leveling action by its own weight in the conventional example 1, but the biasing force is applied. By providing the spring rod 205 as a means, the leveling action is made good by appropriate biasing force.
That is, as the tillage depth by the tillage rotary 212 increases, there is a problem that the pressure applied to the tilling surface by each of the leveling plates 201 and 202 becomes weaker. The urging force is increased.

The spring rod 205 is composed of a rod 250, an urging adjustment portion 251 and a spring 252. The rod-like rod 250 has a fixing hole in the upper portion thereof and is slidably fitted to the pipe-like urging adjustment portion 251. Constitute. The spring 252 is provided between the lower portion of the bias adjusting portion 251 and the sliding rotation connecting portion 222 of the first leveling plate 202, and both end portions thereof are connected and fixed so as to be rotatable. Further, the spring rod 205 is slidable in the length direction, and is configured to press the first leveling plate 202 and the second leveling plate 203 against the tilling surface by the urging force of the spring 252.
JP 2004-89011 A Japanese Patent Application No. 2005-346487

However, since the contact support body 156 provided in the conventional example 1 is in surface contact with the coupling body 141 constituting the link mechanism, the corresponding contact support body 156 is caused by vibration or the like when the farm work machine of the conventional example 1 is moved. And the connecting part 141 have a problem that the contact surface is easily worn.
Further, the connecting portion 141 is configured to enter the U-shaped groove portion formed by the first abutting portion 156a of the abutting support 156, but the U-shaped groove portion of the first abutting portion 156a is connected. Since the connecting portion 141 cannot smoothly enter unless the opening is large with respect to the portion 141, the U-shaped groove portion of the first abutting portion 156a must be greatly opened. As a result, the connecting portion 141 that has entered the groove portion of the first contact portion 156a is connected to the connecting portion 141 and the contact support body 156 when the agricultural work machine 111 travels in a folded state in which the extension work body 114 is rotated. The large gap between the two has a problem that the rattling becomes large and vibration and noise increase.

  And when the spring rod 205 which is an urging means for making the appropriate filling pressure by the 1st leveling board 202 and the 2nd leveling board 203 like the earth crushing apparatus of the prior art example 2 is provided, this spring rod Since the urging force of 205 is applied, when the foldable extension portions provided on both sides of the tillage means are folded and stored as in Conventional Example 1, the first leveling plate 202, the second leveling plate 203, and There is a problem that it is not preferable to support and fix the link mechanism constituted by the leveling plate link mechanism 204 by the contact support 156.

  Therefore, in view of the above-mentioned problems, the present invention also provides a good extension work body part when the extension work body part is folded and stored even in a foldable soil breaker having a structure that performs secondary biasing of the leveling plate by a spring rod. A foldable soil crushing device that can be fixedly supported on the slab.

  In this invention, in order to solve the above-mentioned problem, paying attention to the fact that the spring rod performing the secondary urging is strong and the connection with the work implement body is also strong,

In a foldable soil breaking device that consists of three parts, a central working body and left and right side working bodies, and the side working body can be folded upward from both ends of the central working body,
Each of the left and right side work bodies is connected to the central work body so as to be rotatable, and a side turn frame capable of folding the side work body upward, and a side side earth crushing rotary capable of crushing by rotating, A side rotary top cover that is positioned and fixed on the upper side of the side crushed rotary, a first side leveling plate that is positioned at the rear of the side crushed rotary and is pivotable in the vertical direction, A side second leveling plate provided on one leveling plate so as to be rotatable in the vertical direction, a first link having one end rotatably connected to the work implement body, and one end rotating to the other end of the first link A second link that is freely connected and the other end is rotatably connected to the side second leveling plate, and is vertically connected to both ends between the first leveling plate and the first link. The sliding means that can slide in conjunction with the sliding means, and the sliding means sliding at the connecting portion between the first leveling plate and the sliding means. A sliding regulating means capable regulate is provided,
The sliding means has one end pivotably connected, the other end pivotably connected in a longitudinal direction, and the other end regulated to prevent sliding by being inserted and locked. A hole is drilled,
The sliding restricting means includes a sliding rod having a base end positioned at a connecting portion between the first leveling plate and the sliding means and the other end positioned at a contact portion provided in the central working body, It consists of a sliding means regulation locking part that is juxtaposed with the sliding rod at the base end and can be inserted into and removed from the regulation fitting hole provided in the sliding means as the sliding rod slides. The contact with the central working body is released, and the sliding means restricting locking portion is inserted into the regulating fitting hole of the sliding means to restrict the sliding of the sliding means. The moving rod comes into contact with the central work body contact portion and is slid, and the sliding means restricting locking portion slides together with the sliding rod to release from the restricting fitting hole and release the sliding means. We propose a collapsible soil crusher characterized by

Therefore, in the folding type crushed soil device, when the side working body is in the unfolded state, the tilling work is performed by the central working body and the left and right side working bodies. At this time, when the leveling plate link mechanism constituted by the first leveling plate, the second leveling plate, the first link, and the second link changes the tilling depth by the side ground breaking rotary, The positional relationship with the second leveling board is adjusted. Further, the sliding means provided in the leveling plate link mechanism slides with the vertical movement of the second leveling plate.
When the folded state is changed from the unfolded state, the side working body moves away from the abutting portion, so that the sliding rod of the sliding regulating means is slid and is eventually released. At this time, since the shape of the leveling link mechanism changes as the side working body is folded, the sliding means also slides.

Eventually, as the sliding means and the sliding rod move, the position of the restriction fitting hole provided in the sliding means coincides with the position of the sliding means restriction locking portion of the sliding restriction means, and the sliding rod is restricted. It will be inserted into the fitting hole. Since the sliding means cannot be slid by the locking of the sliding means and the sliding regulating means, the position of the leveling plate link mechanism is uniquely determined. When the first leveling plate and the second leveling plate are folded, The position is fixed.
In the present invention,

In a foldable soil breaking device that consists of three parts, a central working body and left and right side working bodies, and the side working body can be folded upward from both ends of the central working body,
Each of the left and right side work bodies is connected to the central work body so as to be rotatable, and a side turn frame capable of folding the side work body upward, and a side side earth crushing rotary capable of crushing by rotating, A side rotary top cover that is positioned and fixed on the upper side of the side crushed rotary, a first side leveling plate that is positioned at the rear of the side crushed rotary and is pivotable in the vertical direction, A side second leveling plate provided on one leveling plate so as to be rotatable in the vertical direction, a first link having one end rotatably connected to the work implement body, and one end rotating to the other end of the first link A second link that is freely connected and the other end is rotatably connected to the side second leveling plate, and is vertically connected to both ends between the first leveling plate and the first link. The sliding means that can slide in conjunction with the sliding means, and the sliding means sliding at the connecting portion between the first leveling plate and the sliding means. And a sliding regulating means that can regulate each side work body, and when each side work body is in an unfolded state, each side first ground leveling plate can be turned up and down with respect to the side rotary top cover, A side first leveling plate fixing mechanism in which each side first leveling plate is restricted from rotating downward with respect to the side rotary upper surface cover when the work body is folded; Become
The sliding means has one end pivotably connected, the other end pivotably connected in a longitudinal direction, and the other end regulated to prevent sliding by being inserted and locked. A hole is drilled,
The sliding restricting means includes a sliding rod having a base end positioned at a connecting portion between the first leveling plate and the sliding means and the other end positioned at a contact portion provided in the central working body, It consists of a sliding means regulation locking part that is juxtaposed with the sliding rod at the base end and can be inserted into and removed from the regulation fitting hole provided in the sliding means as the sliding rod slides. The contact with the central working body is released, and the sliding means restricting locking portion is inserted into the regulating fitting hole of the sliding means to restrict the sliding of the sliding means. The moving rod comes into contact with the central work body contact portion and is slid, and the sliding means restriction locking portion slides together with the sliding rod to release from the restriction fitting hole and release the sliding means.
The side first ground leveling plate fixing mechanism includes a stopper arm rotating shaft provided on each side working body and a stopper arm provided so as to be rotated and slid on the stopper arm rotating shaft toward each side working body. A first leveling plate locking projection that is provided on each side first leveling plate and can be locked and unlocked with a stopper arm, and a stopper that is provided on the central work body and can be locked and unlocked with the stopper arm When each side working body is in the unfolded state, the stopper arm rotation check projection is locked to a part of the stopper arm and the rotation is restricted. Is released from the first leveling plate locking protrusion of the side first leveling plate, and each side first leveling plate can be rotated in the vertical direction with respect to the side rotary upper surface cover. If the work piece is folded, A part of the par arm is unlocked from the stopper arm rotation check projection and the other part of the stopper arm is locked to the first leveling plate locking projection of the side first leveling plate. Provided is a foldable soil crusher characterized in that the leveling plate is in a state where its downward rotation is restricted with respect to a side rotary upper surface cover.

Therefore, in this folding type ground breaking device, when the side working body is folded, in addition to the previously proposed folding type ground breaking device, the side first ground leveling plate fixing mechanism is used for the first ground leveling plate of the side working body. Fix it. That is, when the side work body is folded, the stopper arm pivots and slides around the stopper arm pivot shaft, and a part of the stopper arm is unlocked from the stopper arm pivot check projection. The other part of the stopper arm is locked with the first leveling plate locking protrusion of the side first leveling plate. For this reason, since each side 1st leveling board will be in the state by which the downward rotation with respect to the side part rotary upper surface cover was controlled, the side 1st leveling board does not shake at the time of movement etc. in a folded state.
Further, when each side work body is in a developed state, the stopper arm rotates and slides around the stopper arm rotation axis. Then, when the deployment state is finally reached, a part of the stopper arm is positioned on the stopper arm rotation check protrusion, and is engaged with the stopper arm rotation check protrusion as it rotates. In addition, the other part of the stopper arm is unlocked from the first leveling plate locking projection of the side first leveling plate, and the side first leveling plate rotates in the vertical direction with respect to the side rotary top cover. It becomes possible.
Thereby, the side first ground leveling plate can freely rotate in the vertical direction when deployed, and the position is fixed by the stopper arm and the rotational movement is restricted in the folded state.

And as what uses the above-mentioned sliding means as a biasing means for position adjustment of the leveling plate,
The sliding means is an urging means that is connected at both ends between the first leveling plate and the first link and urges the second leveling plate upward, and presses the first leveling plate and the first link. The urging means is configured to be urged in the expanding direction so that the urging means is connected between the first link and the first leveling plate at both end portions, and one end portion is rotatably connected and the other end portion is provided. Are coupled so as to be rotatable and slidable in the length direction.

And in the state which folded the side part work body, since the slide rod of a slide control means does not contact | abut with the contact part of a center work body, the control latching part which moves with a slide rod is urged | biased It enters into the restriction fitting hole provided in the means and the sliding of the urging means is restricted. As a result, the biasing action of the biasing means does not function, and the movement of the leveling plate link mechanism is restricted because the restriction fitting hole and the sliding means restriction locking portion are locked. It becomes possible to hold.
Further, in the state in which the side working body is deployed, the sliding rod comes into contact with and slides on the abutting portion of the central working body, so that the regulation locking portion that moves together with the sliding rod acts as the biasing means. Since it detaches from the provided regulation fitting hole, sliding of the urging means is not hindered. Thereby, the biasing means can adjust the position of the leveling plate by the biasing force.

Therefore, according to the present invention, the side first ground leveling plate fixing mechanism has a very simple configuration, there are few protrusions to the outside of the entire device, it can be incorporated in a small space, and the device can be handled easily. In addition, there is an effect peculiar to the present application that maintenance and inspection work becomes very easy. As a result, the manufacturing cost is reduced.
Moreover, when working in a state in which any of the side work bodies is folded, it is possible to secure a vertical rotation space for the leveling plate of the central work body.
Furthermore, when the sliding means and the sliding regulating means are provided, and the side work body is in a folded state, the sliding regulating means regulates the sliding of the sliding means, and the side first ground leveling plate, Since the leveling plate link mechanism constituted by the side second leveling plate, the first link, and the second link does not move, the side work body, particularly the side first leveling plate and the side second leveling plate shakes when folded. This has an effect unique to the present application.

  When the sliding means is the urging means, the urging means is appropriately adjusted according to the movement of the leveling plate link mechanism even when the depth of tilling by the side crushed rotary of the side working body changes deeply. The first ground leveling plate and the second side leveling plate are biased upward by the biasing force, so that the biasing force hardly changes and the second ground leveling plate can maintain a nearly horizontal posture and the grounding is planar. Can be done. For this reason, the leveling by the earth breaking device is performed with a constant pressing force, and there is an effect peculiar to the present application that enables good tillage work.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a rear explanatory view showing a state in which a side working body of a foldable soil breaking apparatus according to an embodiment of the present invention is expanded to a working state, and FIG. FIG. 3 is a cross-sectional explanatory view taken along the line AA of FIG. 1, and FIG. 4 is a side explanatory view showing a state in which the side working body of the folding-type soil crushing apparatus is folded. 5 is a plan view internal mechanism explanatory view showing the drive transmission state of the foldable soil crusher, FIG. 6 is a side view of the main part of the foldable soil crushed device, and FIG. 7 is a rear view in the unfolded state. FIG. 8 is an explanatory view taken along arrow B in FIG. 2 in the intermediate state between the expanded state and the folded state, and FIG. 9 is an explanatory view seen from arrow B in FIG. 2 in the folded state. Is a perspective explanatory view showing the connected state of the urging means of the foldable crushing device Yes FIG. 11 is an explanatory view showing the relative position in the unfolded state, FIG. 12 is an explanatory view showing the relative position in the intermediate position between the unfolded state and the folded state, and FIG. 13 shows the relative position in the folded state. FIG.

As shown in FIG. 1, the foldable soil crusher includes three parts: a central work body 1 and left and right side work bodies 2 </ b> L and 2 </ b> R that extend the work width to the left and right of the central work body 1. Each of the left and right side work bodies 2L and 2R is rotatably connected to the central work body 1 and can be folded upward of the central work body 1 by rotating.
3 is a folding part of the central work body 1 and the left and right side work bodies 2L and 2R, and 4 is a side first leveling plate fixing mechanism.

  As shown in FIG. 1, FIG. 2, or FIG. 5, the central working body 1 includes a central crushed rotary 10 and a pipe-shaped center frame 11 that are provided in the left-right direction. The central crushed rotary 10 is provided with a central rotating shaft 10a and further provided with a plurality of crushed claws 10b in the radial direction from the central rotating shaft 10a. The center frame 11 can receive power from a tractor or the like by an input case 12 provided in the center portion, and an input shaft 12a projects forward from the input case 12. A top mast 19a provided on the mounting frame 19 and a lower pin 19b provided on both sides of the input case 12 are connected to a tractor three-point link mechanism (not shown), and the universal joint is connected to the input shaft 12a so as to transmit drive from the tractor PTO shaft. Connected to The input shaft 12a is connected to the output shaft 11a provided in the center frame 11 via the bevel gear 12b so that the received power can be transmitted.

  A transmission chain case 13 is provided on one side of the center frame 11, and the transmission chain case 13 spans the sprocket 13a provided at the end of the output shaft 11a, the sprocket 13b provided at the end of the central rotary shaft 10a, the sprocket 13a, and the sprocket 13b. A roller chain 13c for transmitting power is provided. Thereby, the power received from the input shaft 12a can be transmitted as rotational power to the central rotating shaft 10a of the central crushed rotary 10 via the sprocket 13a, the roller chain 13c, and the sprocket 13b. Then, the central working body 1 is crushed by the crushed claws 10b that are provided on the central rotating shaft 10a in the circumferential width direction.

  As shown in FIG. 4, central clutch claws 14 are provided at the left and right ends of the central rotating shaft 10a. The center side clutch pawl 14 is connected to the side clutch pawl 20b provided at the end of the side rotary shaft 20a of the left side working body 2L when the left side working body 2L is in an unfolded state. The power of the central rotating shaft 10a can be transmitted to the left side working body 2L. Similarly, the center side clutch pawl 14 provided at the right end of the center rotating shaft 10a can transmit power to the right side working body 2R. In addition, since FIG. 4 is the state which folded the side part work body 2 upwards, although the center side clutch nail | claw 14 appears, in the side part work body 2 deployment state, it cannot be visually recognized from the side.

As shown in FIG. 4, the central ground rotary 10 is provided with a central rotary upper surface cover 15 on the upper surface.
Reference numeral 16 denotes a central first leveling plate. The center first leveling plate 16 is provided on the rear end side of the central rotary upper surface cover 15 so as to be vertically rotatable via a first leveling plate rotating shaft 16a. Reference numeral 17 denotes a central second leveling plate. The central second leveling plate 17 is provided on the rear end side (or lower end side) of the central first leveling plate 16 so as to be vertically rotatable via a second leveling plate rotation shaft 17a. Further, a rake 16c is projected from the central first leveling plate 16. In this embodiment, the rakes 16c are provided in a line at equal intervals in the left-right direction. Further, the central second leveling plate 17 is connected to the central work body 1 main body via the second link 18b and the first link 18a on the upper surface thereof, and the central first leveling plate 16, the central second leveling plate 17, and the central second leveling plate 17 are connected. A leveling plate link mechanism is constituted by the two links 18b and the central first link 18a.

  The left and right side working bodies 2L and 2R are provided on the left and right sides of the central working body 1, respectively, and are provided with a side rotating shaft 20a corresponding to the central rotary shaft 10a of the central working body 1, and the side rotating shaft 20a has a center. A side ground rotary 20 corresponding to the central ground rotary 10 of the work body 1 is provided. A side rotary upper surface cover 21 corresponding to the central rotary front cover 15 of the central working body 1 is provided on the upper surface of the side ground crushing rotary 20. As described above, the side rotary shaft 20a can rotate by obtaining power from the central rotary shaft 10a of the central working body 1. Therefore, the left and right side working bodies 2L and 2R function as a ground for extending the central working body 1.

  22 is a side 1st leveling board, 23 is a side 2nd leveling board. The side first leveling plate 22 is provided on the rear end side of the side rotary upper surface cover 21 so as to be vertically rotatable via a first leveling plate rotating shaft 22a. The side second leveling plate 23 is provided on the rear end side (or lower end side) of the side first leveling plate 22 so as to be vertically rotatable. Further, the side first leveling plate 22 is provided with a rake 22b similar to the central first leveling plate 16. In this embodiment, the rake 22b is provided in only one row at equal intervals in the left-right direction. The side second leveling plate 23 is connected to the side rotary upper surface cover 21 via the side second link 51 and the side first link 50 on the upper surface, and the side first leveling plate 21 and the side second leveling plate 23 are connected. The leveling plate link mechanism 5 is configured by the leveling plate 23, the side second link 51, and the side first link 50. And the side part 1st leveling board 22 and the side 2nd leveling board 23 can take an appropriate position at the time of tilling work by this leveling board link mechanism 5. FIG.

  3 is a folding part. As shown in FIG. 1 and FIG. 7, the folding unit 3 is located at the folding portion of the central working body 1 and the side working bodies 2L and 2R, and the side work provided on the side working bodies 2L and 2R. A folding rotation shaft 30 is provided for rotatably connecting the body rotation frame 31 and the central work body rotation frame 32 provided in the central work body 1, and the side work bodies 2L and 2R are folded and rotated. The shaft 30 can be folded 180 degrees above the central work body 1 around the shaft 30. When the central work body rotating frame 32 and the side work body rotating frame 31 rotate the central work body 1 and the side work bodies 2L, 2R, the central work body 1 and the side work bodies 2L, 2R It consists of a rigid body that does not distort. In this embodiment, the side work body rotation frame 31 is composed of two parallel plate-like bodies facing each other, and the central work body rotation frame 32 is composed of a rectangular tube body having a U-shaped cross section with an open bottom surface. .

  A side first leveling plate fixing mechanism 4 is provided in the vicinity of the folding unit 3. The side first ground leveling plate fixing mechanism 4 is provided with a stopper arm rotation shaft 40 on each side work body rotation frame 31 of each side work body 2L, 2R. Further, the stopper arm rotation shaft 40 is provided with a stopper arm 41 so as to be urged to rotate toward the respective side work bodies by an arm torsion spring 44. The stopper arm 41 is formed of a deformed L-shaped plate body, an intermediate portion is rotatably attached to the stopper arm rotation shaft 40, and an end portion on the side work body 2 side is perpendicular to the rear side in an L shape. The side end 41a is bent and the other end forms a center end 41b. Further, an arm torsion spring 44 is provided so that both ends are supported by the stopper arm 41 and the stopper arm rotation shaft 40. The arm torsion spring 44 urges the stopper arm 41 that is rotatable about the stopper arm rotation shaft 40 in the direction of the arrow R shown in FIGS. Further, the side first leveling plate fixing mechanism 4 has first leveling plate locking projections 42 protruding from the upper surface of each side first leveling plate 22, and the central work body rotation of the central work body 1. A stopper arm rotation check projection 43 provided on the frame 32 is provided. Then, when the side work bodies 2L, 2R start to move from the expanded state to the folded state, the center side end 41b of the stopper arm 41 is connected to the first leveling plate engaging protrusion 42 in FIG. Since the contact locking surface 42 a that is the upper surface of the stop protrusion 42 continues to contact the rotation check protrusion 43, the stopper arm 41 rotates against the urging force of the arm torsion spring 44. Then, as the side working body 2 is rotated and moved, the position of the side end 41a of the stopper arm 41 is also moved along with the rotation, and eventually the side portion bent at a right angle to the rear in an L shape. The side end portion 41a and the contact locking surface 42a are opposed to each other. Then, the movement of the side first ground leveling plate 22 in the front direction in FIG. 9 (that is, the upward direction in FIG. 7) is restricted. In this state, even if the side working bodies 2L and 2R are further shifted to the folded state and rotated, the side first ground leveling plate 22 is forward in FIG. 9 (that is, upward in FIG. 7). Movement will be restricted.

  As shown in FIGS. 7 and 8, the center side end 41 b is an arm twist until the side work body 2 </ b> L is shifted from the deployed state to the folded state (or from the middle of the transition to the deployed state to the deployed state). Due to the biasing force of the spring 44, the stopper arm rotation check projection 43 provided on the central work body rotation frame 32 is brought into contact with and locked. Accordingly, the stopper arm 41 is in the locked state in the deployed state and the rotation in the direction of the arrow R is restrained, and the side portion side end 41a is in the unlocked state with the first leveling plate locking protrusion 42, Stopped without being involved.

  In the state in which the side work bodies 2L and 2R are expanded as described above (the solid line diagram of the side first ground leveling plate 22 shown in FIG. 6), as shown in FIGS. Since the portion is locked to the stopper arm rotation check projection 43, the rotation in the direction of the arrow R is in a stopped state. In this state, the side first leveling plate 22 is in a state in which the stopper arm 41 and the first leveling plate locking projection 42 are unlocked, so that each side first leveling plate 22 is a side rotary. The upper cover 21 is rotatable in the vertical direction. Crushing work is performed in this state.

  Next, as shown in FIG. 7 and FIG. 8, when each side work body 2L, 2R starts to rotate around the folding rotation shaft 30 and starts to shift from the unfolded state to the folded state, the stopper arm rotates. The positions of the shaft 40, the stopper arm 41, and the first leveling plate locking projection 42 are moved, and the side end 41a of the stopper arm 41 comes into contact with the first leveling plate locking projection 42, and the stopper The locking position between the central side end 41b of the arm 41 and the stopper arm rotation check projection 43 changes. From the state shown in FIG. 8 to the state shown in FIG. 9 in which the side work bodies 2L and 2R are folded, the side end 41a of the stopper arm 41 is rotated by the first leveling plate locking protrusion 42. Accordingly, the arm torsion spring 44 is rotated against the urging force, so that the center side end portion 41b is separated from the stopper arm rotation check projection 43 and the rotation of the stopper arm 41 is continued.

  When the side work bodies 2L and 2R are folded 180 degrees as shown in FIG. 9, the center side end 41b of the stopper arm 41 is unlocked from the stopper arm rotation check projection 43. It is in the state. In this state, in the stopper arm 41, the side end 41 a comes into contact with the first leveling plate locking projection 42 of the side first leveling plate 22 by the biasing force of the arm torsion spring 44 in the arrow R direction. Since it stops at the position, the first leveling plate locking projection 42 is securely locked. Thereby, each side part 1st leveling board 22 will be in the state by which rotation to the downward direction was restrained with respect to the side part rotary upper surface cover 21. FIG.

Below, the biasing means 6 provided in the leveling plate link mechanism 5 will be described, but prior to this, details of the leveling plate link mechanism 5 will be described.
The leveling plate link mechanism 5 includes a side first leveling plate 21, a side second leveling plate 23, a side second link 51, and a side first link 50, and the link mechanism is attached to the side work body 2L main body. The side first ground leveling plate 22 and the side first link 50 to be connected are pivotally connected around the rotation center. In the side first link 50, the front side end 50a is rotatably connected to the side work body 2L main body, and the rear side end 50b is connected to the upper end 51a of the side second link 51 and the rotation pin 510. It connects so that it can rotate freely. The side second link 51 is pivotally connected to the rear side end 50b of the side first link 50 by the pivot pin 510 of the upper end 51a, and the side second ground leveling plate at the lower end 51b. The upper surface of 23 is rotatably connected. And the angle of the side 1st leveling board 22 will be controlled so that the side 1st leveling board 22 may always be as horizontal as possible with respect to the plowing work surface at the time of tilling work.

Reference numeral 6 denotes a spring rod which is a biasing means. Both ends of the spring rod 6 are rotatably connected to the side first link 50 and the side first leveling plate 22. The spring rod 6 described below is the same as the spring rod 6 provided in the side work body 2L, but the biasing means provided in the side work body 2R is the same, and the spring rod 6 provided in the central work body 1 is the same. It is.
Hereinafter, the spring rod 6 will be described using the right side working body 2L as an example. The spring rod 6 urges the side second leveling plate 23 upward, and includes a rod 60, an urging adjustment portion 61, and a spring 62 as shown in FIG. The rod 60 has a rod shape, and has a fixing hole (not shown) in the upper portion thereof, and is fitted with a bias adjusting portion 61 having a pipe shape that can include the tip of the rod 60. The urging adjustment portion 61 is formed with a plurality of adjustment holes 610 in the length direction. In this embodiment, three adjustment holes 610 are provided. The rod 60 is attached by one of the adjustment holes 610, a fixing hole (not shown) of the rod 60, and a fixing pin 63. Accordingly, by appropriately selecting the fixing position by the fixing pin 63 from the adjustment hole 610, the locking position of the rod 60 and the biasing adjustment portion 61 can be adjusted, and the length at the time of locking can be adjusted and fixed. can do.
The side first ground leveling plate 22 is provided with a sliding rotation connecting portion 24. As shown in FIG. 10, the sliding rotation connecting portion 24 is provided between two connecting support plates 24a fixed to the side first leveling plate 22, and protrudes on both sides of the central cylindrical body 24b. The connecting support plate 24a is rotatably supported by the rotating shaft 24c. Further, the cylindrical body 24b is formed with a sliding hole 24d as a through-hole in a direction orthogonal to the rotation shaft 24c, and the lower portion of the rod 60 is inserted into the sliding hole 24d so that it can slide in the length direction of the rod 60. In addition, the side first leveling plate 22 is rotatably connected.

The spring rod 6 configured as described above is rotatably connected and fixed to a rotating shaft 500 provided on the side first link 50 by a rotating connecting portion 6a provided at the upper end of the bias adjusting portion 61. And the position of the rotation connection part 6a provided in the spring rod 6 is the rear where the rotation axis 500 is a rotation connection part with the side part 2nd link 51 rather than the length direction center part 50c of the side 1st link 50. Since it is provided at the side end portion 50b, it becomes the side second link 51 side of the side first link 50.
The spring rod 6 may have a configuration in which the upper and lower sides are interchanged. The upper and lower positions of the urging adjustment unit 61 provided on the rod 60 and the spring 62 are exchanged, and the spring 62 is disposed on the upper side to urge the adjustment unit 61. May be provided at the bottom. In this embodiment, the spring rod 6 is provided with a sliding rotation connecting portion 24 at a position 6a on the upper end side thereof, and is connected to the side first link 50 so as to be rotatable and slidable in the length direction. It is good also as a structure connected and fixed so that rotation is possible in the position of a connection part with the side part 1st leveling board 22 which is a part side.

  In this embodiment, the urging means is constituted by the spring rod 6. However, the urging means may be provided as a slidable sliding means by simply inserting one end into the sliding rotation connecting portion 24 without providing the spring 62. good.

  The sliding rotation connecting portion 24 is provided with a restricting means insertion hole 24e on the cylindrical side surface perpendicular to the inserted spring rod 6 so that the sliding restricting means 7 can be inserted and removed. The operation of the restricting means insertion hole 24e will be described together with the sliding restricting means 7. Further, the rod 60 of the spring rod 6 is also provided with a sliding restriction locking hole 64 on the cylindrical side surface. The sliding restriction locking hole 64 is provided in the restricting means insertion hole 24e at a position where the leveling plate link mechanism 5 of the side work body 2 is accommodated when the side work body 2 is folded above the central work body 1. Drilled at a position opposite to.

As shown in FIG. 1 and FIG. 2 or FIG. 11, the sliding regulating means 7 is parallel to the cylindrical sliding rod 71, the sliding guide plate 72 that guides the sliding of the sliding rod 71, and the sliding rod 71. A locking rod 73 provided on the rod, a rod connecting plate 74 that fixes the sliding rod 71 and the locking rod 73 substantially in parallel, a coil spring 75 that applies a biasing force that restricts sliding of the sliding rod 71, and a coil spring 75. It consists of a biasing locking projection 76 that locks the sliding rod 71.
The slide restricting means 7 has one end of a rod connecting plate 74 fixed to one end of a sliding rod 71 at a substantially right angle, and the other end of the rod connecting plate 74 is a locking rod parallel to the sliding rod 71. 73 is fixed. Then, the slide rod 71 is inserted into the restricting means insertion hole 24e formed in the connection support plate 24a of the slide rotation connection portion 24, and the rod connection plate 74 side of the slide rod 71 is slidably supported. The sliding rod 71 is installed so that the other end is located on the central working body 1 side. Further, the other end of the sliding rod 71 is inserted into a sliding guide plate 72 having an insertion hole 72a that allows the sliding rod 71 to be inserted therethrough. The sliding guide plate 72 is fixed to the side first ground leveling plate 22 of the side working body 2. Therefore, the sliding rod 71 is installed so as to be slidable from the side work body 2 to the central work body 1 side or the opposite side by the restricting means insertion hole 24e and the insertion hole 72a. Further, a coil spring 75 is inserted into the sliding rod 71, and the coil spring 75 is positioned between the connection support plate 24 a and the biasing restriction projection 76 by a biasing restriction projection 76 that is fixed at a substantially intermediate position of the sliding rod 71. Is done.

  Further, a contact plate 16 b is erected and fixed to the central first leveling plate 16 of the central working body 1 at the other end side position of the sliding rod 71. Therefore, when the side working body 2 is in the unfolded state, the sliding restricting means 7 is pressed while the front end of the sliding rod 71 abuts against the abutting plate 16b and resists the biasing force of the coil spring 75. In this state, the locking rod 73 of the sliding restricting means 7 is not inserted into the restricting means insertion hole 24e of the sliding rotation connecting portion 24, and in the locked state. Absent. However, when the side work body 2 is folded upward of the central work body 1, the tip of the sliding rod 71 releases the control with the contact plate 16b and is separated from the coil spring 75. Since the sliding movement to the opposite side of the unfolded state is performed by the urging force, the locking rod 73 of the sliding restricting means 7 is inserted into the restricting means insertion hole 24e of the sliding rotation connecting portion 24 so that the locked state is maintained. Take. At this time, the locking rod 73 is inserted into not only the restriction means insertion hole 24e of the sliding rotation connecting portion 24 but also the sliding restriction locking hole 64 formed in the rod 60 of the spring rod 6. The sliding movement of the spring rod 6 is restricted.

  Next, when the side work body 2 is rotated to be folded up above the central work body 1, the unfolded state as shown in FIG. 11 representing the unfolded state is performed. 7, the abutting plate 16 b provided on the central first leveling plate 16 of the central working body 1 is brought into contact with the tip of the sliding rod 71 of the sliding restricting means 7, and the sliding rod 71 receives the biasing force of the coil spring 75. Therefore, it is slid to the side work body 2 side. Accordingly, the locking rod 73 of the sliding restricting means 7 is in a state of being detached from the restricting means insertion hole 24e of the sliding rotation connecting portion 24. In this state, the spring rod 6 that is the urging means is in a slidable state and is in a state in which crushed soil work is possible.

  Next, with respect to the operation of the side first ground leveling board fixing mechanism 4 of the folding type ground breaking device of the present invention, FIG. 6 is an explanatory side view of the main part of the folding type ground breaking apparatus showing the operation of the side first ground leveling board fixing mechanism 4. 1 and FIG. 7 and FIG. 9 showing the operation of folding the left side working body 2L in the forward direction of the tractor from the unfolded state. In the right side working body 2R in the forward direction of the tractor, the process from the expanded state to the folded state is the same as that of the left side working body 2L, although the left and right sides are different.

  6 and 7 show a state in which the left side working body 2L is unfolded. In the unfolded state, the stopper arm 41 of the side first leveling plate fixing mechanism 4 is restrained from turning in the direction of arrow R because the center side end 41b is locked to the stopper arm turning check projection 43. The side first leveling plate 22 is in a state in which the stopper arm 41 and the first leveling plate locking projection 42 are unlocked (solid line diagram of the side first leveling plate 22 in FIG. 6). For this reason, each side part 1st leveling board 22 is a state which can be rotated to an up-down direction with respect to the side part rotary upper surface cover 21. As shown in FIG. Crushing work is performed in this state.

  At this time, the side first leveling plate 22 is elastically supported by the upward biasing force applied by the spring 62 of the spring rod 6, and the side first link 50, the side second link 51, The spring rod 6, the side first leveling plate 22, and the side second leveling plate 23 are connected as a link mechanism. When changing the urging force of the spring rod 6 upward, the fixing pin 63 is removed, the adjustment hole 610 of the urging adjustment portion 61 is changed, and the fixing pin 63 is again connected to the adjustment hole 610 and the fixing hole of the rod 60. By changing the mounting length, the upward biasing force is adjusted.

  Since the spring rod 6 urges the side first leveling plate 22 upward while sliding in the length direction between the side first link 50 and the side first leveling plate 22, Operation), the side first ground leveling plate 22 is provided on the rotary upper surface cover 21 so as to be rotatable up and down by the tilling soil of the side side ground breaking rotary 22 and the rear side of the side first ground leveling plate 22 and the side first ground leveling plate 22 The side second leveling plate 23 that is pivotably connected to the upper side is pivoted upward. At this time, since the side second ground leveling plate 23 is rotatable to the side first ground leveling plate 22 and the side second link 51, the side second link 51 is connected via the side first link 50. Since the side second leveling plate 23 is rotated upward and downward in the substantially horizontal posture, it can automatically cope with the shallow scraping work and the deep scraping work.

  Next, when the side work body 2 is rotated to be folded up above the central work body 1, the unfolded state as shown in FIG. 11 representing the unfolded state is performed. 7, the abutting plate 16 b provided on the central first leveling plate 16 of the central working body 1 is brought into contact with the tip of the sliding rod 71 of the sliding restricting means 7, and the sliding rod 71 receives the biasing force of the coil spring 75. Therefore, it is slid to the side work body 2 side. Accordingly, the locking rod 73 of the sliding restricting means 7 is in a state of being detached from the restricting means insertion hole 24e of the sliding rotation connecting portion 24. In this state, the spring rod 6 that is the urging means is in a slidable state and is in a state in which crushed soil work is possible.

As shown in FIGS. 8 and 9, when the side work body 2L (left side) starts to shift from the unfolded state to the folded state, the side work body 2L is folded on the side turning work body rotating frame 31. The rotation of the stopper arm rotation shaft 40, the stopper arm 41, and the first leveling plate locking protrusion 42 starts to move around the tatami rotation shaft 30. This rotation does not change the relative position of the stopper arm rotation shaft 40 and the first leveling plate locking protrusion 42, but the stopper arm 41 is a stopper arm rotation restraining protrusion that does not rotate at its center end 41b. The position and posture change due to the locking with 43. When the position of FIG. 8 is reached by pivoting around the folding pivot shaft 30 of the side work body 2L, the side end 41a of the stopper arm 41 is in a position where it abuts against the first leveling plate locking projection 42. In addition to the change, the locking position between the center side end 41b of the stopper arm 41 and the stopper arm rotation check projection 43 also changes.
This will be described with reference to FIGS. 11 to 13 showing the positional relationship between the side working body 2, the central working body 1, and the sliding restricting means 7 at this time.
When the side work body 2 is folded from the unfolded state shown in FIG. 11 to the central work body 1 shown in FIG. 13, the folding rotation shaft 30 is moved as shown in FIG. Since the central work body 1 and the side work body 2 are gradually separated from each other because they are pivoted about the center, the sliding restricting means 7 is attached to the coil spring 75 in the direction of the arrow in FIG. Slide and move by force. Then, the locking rod 73 of the sliding restricting means 7 is gradually slid and moved toward the sliding rotation connecting portion 24 and is inserted into the restricting means insertion hole 24e of the sliding rotating connecting portion 24.

  When the side work body 2 is folded from the unfolded state shown in FIG. 11 to the central work body 1 shown in FIG. 13, the folding rotation shaft 30 is moved as shown in FIG. Since the central work body 1 and the side work body 2 are gradually separated from each other because they are pivoted about the center, the sliding restricting means 7 is attached to the coil spring 75 in the direction of the arrow in FIG. Slide and move by force. Then, the locking rod 73 of the sliding restricting means 7 is gradually slid and moved toward the sliding rotation connecting portion 24 and is inserted into the restricting means insertion hole 24e of the sliding rotating connecting portion 24.

  When the left side work body 2L is folded as it is and is in a folded state rotated 180 degrees as shown in FIG. 9, the center side end 41b of the stopper arm 41 is engaged with the stopper arm rotation check projection 43. The side end 41a is securely moved by the pivoting of the arm torsion spring 44 in the direction of the arrow R, so that the first leveling plate 22 of the side first leveling plate 22 is reliably secured. It is locked with the main plate locking protrusion 42. By this locking, each side first ground leveling plate 22 is in a state where its downward rotation with respect to the side rotary upper surface cover 21 is restricted.

  On the contrary, when the side working bodies 2L and 2R are folded from the upper side of the central working body 1 to the unfolded state, the state of the side first ground leveling plate fixing mechanism 4 is changed to the state shown in FIGS. The stopper arm 41 has a central end 41b locked to the stopper arm rotation restraining protrusion 43, and rotates and stops in the opposite direction against the rotation biasing force of the arm torsion spring 44 in the arrow R direction. . In this state, when the state further shifts to the unfolded state of FIG. 6, the side end 41 a of the stopper arm 41 is released from the first leveling plate locking projection 42, and the side first leveling plate 22 is released. Is in a state of being rotatable in the vertical direction with respect to the side rotary upper surface cover 21.

At this time, since the rod 60 of the spring rod 6 exists in the sliding rotation connecting portion 24, the locking rod 73 comes into contact with the rod 60, and the sliding is controlled by the contact of the locking rod 73. The movement of the means 7 toward the central work body 1 side (movement in the direction of the arrow) ends.
Further, when the folding process with the folding rotation shaft 30 as the center further proceeds, the sliding of the spring rod 6 with the sliding rotation connecting portion 24 proceeds with the movement of the side work body 2, and the rod 60. When the position of the sliding restriction locking hole 64 formed in the hole and the restriction means insertion hole 24e of the sliding rotation connecting portion 24 coincide with each other, the locking rod 73 of the sliding restriction means 7 is placed in the restriction means insertion hole 24e. Also invade. As a result, the spring rod 6 and the sliding restricting means 7 are locked, and both ends of the spring rod 6 are connected to the side first leveling plate 22 and the side first link 50, respectively. The mechanism 5 is restricted in free movement and is fixed at a predetermined position.

  When the folding process further proceeds, the folded state shown in FIG. 13 is obtained.

  The present invention has a foldable side working body that is an extended working body, and is used as a folding-type soil breaking device such as a ground scraping device or a ground breaking rotary device having a leveling plate that can perform ground scraping work and soil breaking work in a field. Probability is high.

The side view of the state which expand | deployed the side part working body of the foldable type | formula crushing apparatus which is an Example of this invention in the working state The rear view of the state which expand | deployed the side part working body of the Example to the working state. The rear view of the state which folded the side work object of the example Driving transmission diagram of the folding type crushed soil device of the embodiment Side surface explanatory drawing which shows the state which folded the side part work body of the Example. Side view of the main part of the foldable soil crusher of the embodiment Rear view explanatory drawing in unfolded state FIG. 2 arrow B explanatory drawing in the intermediate state of an unfolded state and a folding state Explanatory drawing of arrow B in FIG. 2 in the folded state Partial enlargement explanatory drawing of an Example Explanatory diagram showing relative position in unfolded state Explanatory drawing showing the relative position in the middle position between the unfolded state and the folded state Explanatory drawing showing the relative position in the folded state Rear explanatory view showing Conventional Example 1 Side explanatory drawing showing the prior art example 1 Operating state explanatory diagram showing Conventional Example 1 Operating state explanatory diagram showing Conventional Example 1 Operating state explanatory diagram showing Conventional Example 1 Internal mechanism explanatory diagram showing Conventional Example 2

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Central work body 10 Central crushed rotary 10a Central rotating shaft 10b Crushing claw 11 Center frame 11 Output shaft 12 Input case 12a Input shaft 12b Bevel gear 13 Transmission chain case 13a Sprocket 13b Roller chain 14 Central side clutch claw 15 Central rotary upper surface cover 16 Center First leveling plate 16a First leveling plate rotation axis
16c Rake 16b Abutting plate 17 Central second leveling plate 17a Second leveling plate rotating shaft 18 Leveling plate operating means 18a Central first link 18b Central second link 19 Mounting frame 19a Top mast 19b Lower pin 2L, 2R Left and right sides Work body 20 Side crushed rotary 20a, 20a Side rotating shaft 20b Side clutch claw 21 Side rotary top cover 22 Side first ground leveling plate
22b Rake 22a Side first leveling plate rotation shaft 23 Side second leveling plate 23a Side second leveling plate rotation shaft 24 Sliding rotation connecting portion
24a Connection support plate
24b Cylindrical body
24c Rotating shaft
24d sliding hole
24e Restriction means insertion hole 3 Folding portion 30 Folding rotation shaft 31 Side work body rotation frame 32 Central work body rotation frame 4 Side first ground leveling plate fixing mechanism 40 Stopper arm rotation shaft 41 Stopper arm 41a side Part side end part 41b Center side end part 42 First leveling plate locking projection
42a Contact locking surface 43 Stopper arm rotation restraining projection 44 Arm torsion spring 5 Ground leveling plate link mechanism 50 Side first link 50a First link link end with work implement body 50b First link second link Rotating end part 50c Central part of the first link
500 Rotating shaft 51 Side second link 51a Rotating end of second link with first link
510 Rotating pin 51b Rotating end of second link with second leveling plate 6 Spring rod (biasing means)
6a Rotation connecting part 60 Rod 61 Biasing adjustment part
610 Adjustment hole 62 Spring 63 Fixing pin 64 Sliding restricting locking hole 7 Sliding restricting means 71 Sliding rod 72 Sliding guide plate
72a Insertion hole 73 Locking rod 74 Rod connecting plate 75 Coil spring 76 Energizing locking protrusion

Claims (3)

In a foldable soil breaking device that consists of three parts, a central working body and left and right side working bodies, and the side working body can be folded upward from both ends of the central working body,
Each of the left and right side work bodies is connected to the central work body so as to be rotatable, and a side turn frame capable of folding the side work body upward, and a side side earth crushing rotary capable of crushing by rotating, A side rotary top cover that is positioned and fixed on the upper side of the side crushed rotary, a first side leveling plate that is positioned at the rear of the side crushed rotary and is pivotable in the vertical direction, A side second leveling plate provided on one leveling plate so as to be rotatable in the vertical direction, a first link having one end rotatably connected to the work implement body, and one end rotating to the other end of the first link A second link that is freely connected and the other end is rotatably connected to the side second leveling plate, and is vertically connected to both ends between the first leveling plate and the first link. The sliding means that can slide in conjunction with the sliding means, and the sliding means sliding at the connecting portion between the first leveling plate and the sliding means. A sliding regulating means capable regulate is provided,
The sliding means has one end pivotably connected, the other end pivotably connected in a longitudinal direction, and the other end regulated to prevent sliding by being inserted and locked. A hole is drilled,
The sliding restricting means includes a sliding rod having a base end positioned at a connecting portion between the first leveling plate and the sliding means and the other end positioned at a contact portion provided in the central working body, It consists of a sliding means regulation locking part that is juxtaposed with the sliding rod at the base end and can be inserted into and removed from the regulation fitting hole provided in the sliding means as the sliding rod slides. The contact with the central working body is released, and the sliding means restricting locking portion is inserted into the regulating fitting hole of the sliding means to restrict the sliding of the sliding means. The moving rod comes into contact with the central work body contact portion and is slid, and the sliding means restricting locking portion slides together with the sliding rod to release from the restricting fitting hole and release the sliding means. Folding type soil crusher characterized by. In a foldable soil breaking device that consists of three parts, a central working body and left and right side working bodies, and the side working body can be folded upward from both ends of the central working body,
Each of the left and right side work bodies is connected to the central work body so as to be rotatable, and a side turn frame capable of folding the side work body upward, and a side side earth crushing rotary capable of crushing by rotating, A side rotary top cover that is positioned and fixed on the upper side of the side crushed rotary, a first side leveling plate that is positioned at the rear of the side crushed rotary and is pivotable in the vertical direction, A side second leveling plate provided on one leveling plate so as to be rotatable in the vertical direction, a first link having one end rotatably connected to the work implement body, and one end rotating to the other end of the first link A second link that is freely connected and the other end is rotatably connected to the side second leveling plate, and is vertically connected to both ends between the first leveling plate and the first link. The sliding means that can slide in conjunction with the sliding means, and the sliding means sliding at the connecting portion between the first leveling plate and the sliding means. And a sliding regulating means that can regulate each side work body, and when each side work body is in an unfolded state, each side first ground leveling plate can be turned up and down with respect to the side rotary top cover, A side first leveling plate fixing mechanism in which each side first leveling plate is restricted from rotating downward with respect to the side rotary upper surface cover when the work body is folded; Become
The sliding means has one end pivotably connected, the other end pivotably connected in a longitudinal direction, and the other end regulated to prevent sliding by being inserted and locked. A hole is drilled,
The sliding restricting means includes a sliding rod having a base end positioned at a connecting portion between the first leveling plate and the sliding means and the other end positioned at a contact portion provided in the central working body, It consists of a sliding means regulation locking part that is juxtaposed with the sliding rod at the base end and can be inserted into and removed from the regulation fitting hole provided in the sliding means as the sliding rod slides. The contact with the central working body is released, and the sliding means restricting locking portion is inserted into the regulating fitting hole of the sliding means to restrict the sliding of the sliding means. The moving rod comes into contact with the central work body contact portion and is slid, and the sliding means restriction locking portion slides together with the sliding rod to release from the restriction fitting hole and release the sliding means.
The side first ground leveling plate fixing mechanism includes a stopper arm rotating shaft provided on each side working body and a stopper arm provided so as to be rotated and slid on the stopper arm rotating shaft toward each side working body. A first leveling plate locking projection that is provided on each side first leveling plate and can be locked and unlocked with a stopper arm, and a stopper that is provided on the central work body and can be locked and unlocked with the stopper arm When each side working body is in the unfolded state, the stopper arm rotation check projection is locked to a part of the stopper arm and the rotation is restricted. Is released from the first leveling plate locking protrusion of the side first leveling plate, and each side first leveling plate can be rotated in the vertical direction with respect to the side rotary upper surface cover. If the work piece is folded, A part of the par arm is unlocked from the stopper arm rotation check projection and the other part of the stopper arm is locked to the first leveling plate locking projection of the side first leveling plate. A foldable soil crusher characterized in that the leveling plate is in a state where its downward rotation is restricted with respect to the side rotary top cover. The sliding means is an urging means that is connected at both ends between the first leveling plate and the first link and urges the second leveling plate upward, and presses the first leveling plate and the first link. The foldable type soil breaking device according to claim 1 or 2, wherein the folding type earth breaking device is urged in a spreading direction.

Images