JP5232123B2 - Pedicle shredder - Google Patents

Description

  The present invention includes a first rotation shaft and a second rotation shaft that are rotatably supported, a plurality of cutting bodies that are fixed to the first rotation shaft and cut the pedicles, and are fixed to the second rotation shaft. A plurality of supply bodies for supplying stems and stems, and the first and second rotating shafts are driven to rotate in directions opposite to each other, whereby the stems and stems are narrowed between the cut body and the supply body. The present invention relates to a pedicle shredding device configured to cut.

  Such a stalk chopping device is equipped with a combine or the like so that the stalks can be shredded and discharged to the field.

  In a conventional pedicle chopping device, a pedicle chopping portion having a cutting shaft as a first rotating shaft and a plurality of cutting blades fixed to the cutting shaft, and supply as a second rotating shaft A shoot supply unit having a shaft and receiving blades as a plurality of supply bodies fixed to the supply shaft, and a reverse mechanism for rotating the shoot supply unit and the shoot shredded portion in opposite directions to each other. There is something. The stalks conveyed by the stalk supply unit are drawn between the stalk supply unit and the stalk chopping unit by the stalk supply unit and the stalk chopping unit rotating in opposite directions, Shredded by parts.

  As this kind of stalk chopping device, for example, in Patent Document 1, a reversing mechanism includes a drive sprocket as a first rotating body fixed to a cutting shaft and a second rotating body fixed to a supply shaft. One reduction gear, the relay sprocket fixed to the relay shaft and the other reduction gear meshing with one of the reduction gears of the supply shaft, the relay sprocket of the relay shaft and the drive sprocket of the cutting shaft are interposed. The thing provided with the chain is described (for example, refer FIG. 3, FIG. 4 of patent document 1).

  When the cutting shaft rotates in one direction, the cutting blade rotates in one direction, and the driving sprocket and the relay sprocket are linked via the chain, so that the relay shaft rotates in one direction. Owing to the engagement of both reduction gears, the supply shaft rotates in the other direction while being decelerated, and the receiving blade rotates in the other direction. In this way, the stalk supply unit and the stalk chopping unit are rotated in opposite directions.

JP 2006-67911 A

  In the conventional stalk chopping device, the other reduction gear is fixed to the relay shaft and one reduction gear is fixed to the supply shaft in order to rotate the stalk supply unit and stalk chopping unit in opposite directions. In addition, it is necessary to mesh one reduction gear with the other reduction gear, which increases the number of reduction gears. In addition, the work is complicated, for example, it takes time to adjust the occlusion of both reduction gears.

  An object of the present invention is to provide a pedicle chopping device capable of reducing the number of parts and facilitating work.

The pedicle chopping apparatus of the present invention includes a first rotating shaft and a second rotating shaft that are rotatably supported, a plurality of cutting bodies that are fixed to the first rotating shaft and cut the pedicle, and the second rotating shaft. A plurality of supply bodies that are fixed to a rotation shaft and supply stems and stems, and the first and second rotation shafts are driven to rotate in directions opposite to each other, whereby the cutting body and the supply body It is configured to shred the stems between,
The first characteristic configuration includes a first rotating body fixed to an end portion of the first rotating shaft, a second rotating body fixed to an end portion of the second rotating shaft, and the first and second rotations. A third rotating body rotatably supported at a position different from the body, an endless rotating body wound around the first, second and third rotating bodies, and a transmission mechanism for transmitting rotational power to the endless rotating body And a portion outside the winding path of the endless rotating body is in contact with an outer peripheral portion of the first rotating body, and a portion inside the winding path of the endless rotating body is the second and third rotations. The endless rotating body is wound around the first, second, and third rotating bodies so as to contact the outer peripheral portion of the body, or a portion outside the winding path of the endless rotating body is disposed on the second rotating body. The front side is in contact with the outer peripheral part and the inner part of the winding path of the endless rotating body is in contact with the outer peripheral parts of the first and third rotating bodies. By winding the endless rotating body around the first, second and third rotating bodies, the first and second rotating shafts are rotationally driven in opposite directions by the endless rotating body. is there.

  According to this configuration, for example, as shown in FIG. 5, the outer portion of the winding path of the endless rotating body 50 is in contact with the outer periphery of the first rotating body 47 and the inner side of the winding path of the endless rotating body 50 is When the portion is in contact with the outer peripheral portion of the second rotating body 46, when the cutting body and the first rotating body 47 rotate counterclockwise, the endless rotating body 50 rotates clockwise, and the supply body and the second rotating body 46 rotates clockwise.

  For example, as shown in FIG. 10, the portion on the outer side of the winding path of the endless rotating body 50 is in contact with the outer peripheral portion of the second rotating body 46, and the portion on the inner side of the winding path of the endless rotating body 50 is the first rotating body. When the cutting body and the first rotating body 47 rotate counterclockwise, the endless rotating body 50 rotates counterclockwise and the supply body and the second rotating body 46 rotate clockwise. Rotate.

  Thus, since the rotation direction of the supply body and the cutting body is reversed by using the winding path outside and the winding path inside of the endless rotating body, the rotation direction of the supply body and the cutting body is reversed. For example, the other reduction gear is fixed to the relay shaft and one reduction gear is fixed to the supply shaft, and it is not necessary to engage one reduction gear with the other reduction gear. Can be reduced. In addition, the work can be facilitated, for example, only by winding the endless rotating body around the first, second and third rotating bodies.

  According to a second characteristic configuration of the present invention, a portion outside the winding path of the endless rotating body is in contact with an outer peripheral portion of the first rotating body, and a portion inside the winding path of the endless rotating body is the second and The endless rotating body is wound around the first, second and third rotating bodies so as to be in contact with the outer periphery of the third rotating body, and the outer diameter of the first rotating body is smaller than the outer diameter of the second rotating body. The first rotation is set on the side entering the winding path of the endless rotating body with respect to the virtual straight line passing through the rotation center of the second rotating body and the rotation center of the third rotating body. The center of rotation of the body is located.

  According to this configuration, for example, as shown in FIG. 5, the outer diameter of the first rotating body 47 is set to be smaller than the outer diameter of the second rotating body 46. The speed can be reduced at a predetermined reduction ratio (ratio between the outer diameter of the second rotating body 46 and the outer diameter of the first rotating body 47). Therefore, it is possible to easily obtain a structure that prevents the stems from being excessively supplied to the cut body side by the supply body.

  Further, the first rotating body 47 has a side closer to the inside of the winding path of the endless rotating body 50 than the virtual straight line L1 passing through the rotation center O2 of the second rotating body 46 and the rotation center O3 of the third rotating body 49. Since the rotation center O1 is located, the contact portion between the outer peripheral surface of the first rotating body 47 and the outer side of the winding path of the endless rotating body 50, the outer peripheral surface of the second rotating body 46, and the winding path of the endless rotating body 50 The contact portion with the inner side and the contact portion between the outer peripheral surface of the third rotating body 49 and the inner side of the winding path of the endless rotating body 50 can be made as long as possible. Therefore, it is possible to prevent the endless rotating body 50 from being detached from the rotating bodies 46, 47, and 49, and causing slippage between the endless rotating body 50 and the rotating bodies 46, 47, and 49.

  A third characteristic configuration of the present invention includes a pair of holders that rotatably support both ends of the first rotating shaft or the second rotating shaft, and the pair of holders are attached to both side portions of the case, respectively. The plurality of cut bodies and the plurality of supply bodies are accommodated in the case, and the first rotating shaft extends over both the side portions of the case and the pair of holders. And an axis adjusting mechanism for adjusting the distance between the axis and the second rotating shaft.

  According to this configuration, since the inter-axis adjustment mechanism that adjusts the distance between the first rotating shaft and the second rotating shaft is provided across each of the both side portions of the case and each of the pair of holders, for example, Even if the cutting body is worn out due to long-term use of the cutting body and the polymerization allowance of the supplying body and the cutting body is reduced, the supply body and the second rotating shaft are adjusted by adjusting the distance between the first rotating shaft and the second rotating shaft. The polymerization allowance of the cut body can be secured.

It is a side view which shows the whole combine. It is a top view which shows a pedicle conveyance apparatus and a shoot chopping apparatus. It is a side view which shows a pedicle conveyance apparatus and a shoot chopping apparatus. It is a top view which shows a pedicle chopping apparatus. It is a side view which shows the state which winds a transmission chain around the 1st, 2nd, 3rd rotary body. It is a cross-sectional view showing a pedicle chopping device. It is a side view showing an inter-axis adjustment mechanism. It is a side view which shows the pedicle chopping apparatus in another embodiment. It is a side view which shows the adjustment mechanism between axes in another embodiment. It is a side view which shows the state which winds the power transmission chain in another embodiment on the 1st, 2nd, 3rd rotary body.

  Hereinafter, the self-removing combine equipped with the stalk chopping device 4 according to the present invention will be described.

〔overall structure〕
As shown in FIG. 1, this self-removing combine has a cutting part C for harvesting cereals at a front part of a body frame B equipped with a pair of left and right crawler type traveling devices A, and a driving part D operated by an operator. , And at the rear of the machine frame B, the threshing part E for threshing the cereal, the Glen tank F for storing the threshed grain, the grain discharging part G for discharging the stored grain, and after threshing It is equipped with a pedicle treatment unit H for treating the shoot.

(Stalk-and-tea processing part)
As shown in FIGS. 1 to 5, the culm processing unit H includes a culm conveying device 3 for conveying the culm and a culm shredding device 4 for chopping the culm. The cereals harvested by the mowing unit C are conveyed to the rear side of the machine body while gradually changing the posture to a laterally inclined posture by a vertical conveying device (not shown), and threshed by the threshing unit E while being nipped and conveyed by the threshing feed chain 2. . After the threshing, the culm is transported by the culm conveying device 3 to the culm chopping device 4, and is chopped by the culm chopping device 4 and released to the field.

(Stalk feeding device)
As shown in FIGS. 1 to 3, the stalk transport device 3 has a transport start end located near the lateral side of the transport end of the threshing feed chain 2, and the transport end is an upper side of the stalk shredder 4. The planter-side endless rotating chain 3a arranged along the direction inclined with respect to the longitudinal direction of the machine body so as to be located close to the planter-side endless rotating chain 3a The tip end side endless rotation chain 3b arranged in parallel with the former side endless rotation chain 3a.

(Stalk chopping device)
As shown in FIGS. 2 to 5, the pedicle chopping device 4 includes a pedicle supply unit 6 and a shoot chopping unit 7 inside a cutter case 5 (an example of a case) attached to the rear side of the machine body. Are arranged side by side in the longitudinal direction of the aircraft. The pedicle shredder 4 rotates the front shoot supply unit 6 in the clockwise direction in FIG. 3 and rotates the rear shoot chopping unit 7 in the counterclockwise direction in FIG. The stalks are shredded between the cocoon supply unit 6 and the stalk chopping unit 7.

(Cutter case)
As shown in FIG. 2, a first rod-like member 8 is erected on the side opposite to the side where the threshing feed chain 2 is located in the rear side of the body frame B (upper side of the drawing in FIG. 2). Has been. A bracket 9 fixed to the side surface portion 5c (an example of both side portions of the case) of the cutter case 5 is attached to the upper portion of the first rod-like member 8 so as to be rotatable around the vertical axis X1. Thus, the cutter case 5 is cantilevered by the first rod-like member 8 so as to be rotatable around the vertical axis X1.

  A hook mechanism 17 is attached across the front part of the cutter case 5 and the rear part of the machine body. When performing maintenance work, a transmission belt 43 described later is removed from the drive pulley 42, the hook mechanism 17 is operated, the engagement between the front portion of the cutter case 5 and the rear portion of the machine body is released, and the pedicle shredder 4 Is rotated backward with respect to the airframe around the vertical axis X1. This facilitates maintenance work by opening the rear side of the machine body and the front side of the cutter case 5.

  As shown in FIGS. 1 to 4, the cutter case 5 includes a receiving port 5 a that is located below the conveying terminal portion of the shoot and knot conveying device 3 and receives the shoot and a lid that can open and close the receiving port 5 a. 5b, and the lid 5b can be manually switched between an open posture (standing posture) and a closed posture (tilted posture).

  When the lid 5b is in an open posture, the stems conveyed by the stem-pick-up device 3 are supplied to the stem-pipe supply unit 6 and the stem-pick shredder 7 through the receiving port 5a. It is shredded in the slimming direction by the part 6 and the stalk chopping part 7, and discharged from the discharge port 5 d below the cutter case 5 to the field. When the lid body 5b is in the closed posture, the stem pods conveyed by the pedicle conveyance apparatus 3 slide down the upper surface of the lid body 5b and are discharged from the rear side of the cutter case 5 to the field. Thus, by switching the posture of the lid 5b, the stem can be discharged into the field in a shredded state or in a state without being shredded.

(Stalk chopping part)
As shown in FIGS. 2 to 4, the stalk shredded portion 7 includes a first rotating shaft 11 rotatably supported on both side surface portions 5 c of the cutter case 5, and an axis X <b> 2 of the first rotating shaft 11. And a plurality of disc-shaped cutting blades 12 (an example of a cutting body) fixed to a plurality of locations in a direction so as to be integrally rotatable.

(Stalk supply unit)
As shown in FIGS. 2 to 4, the stalk supply unit 6 includes a second rotating shaft 13 and a plurality of disks fixed to a plurality of locations in the direction of the axis X3 of the second rotating shaft 13 so as to be integrally rotatable. And a pair of rhombus holders 15 attached to both ends of the second rotating shaft 13 in the direction of the axis X3. The holder 15 is attached to both side surface portions 5c of the cutter case 5, and is configured to rotatably support the second rotation shaft 13.

  In the part acting on the stock side of the stem, one supply blade 14 corresponds to one cutting blade 12, and in the part acting on the tip side of the stem more than this, one cutting blade 12, two supply blades 14a and 14b correspond. The cutting blade 12 and the supply blades 14a and 14b are arranged so as to overlap in the lateral direction of the machine body and to enter between the two supply blades 14a and 14b to which the cutting blade 12 corresponds.

  As shown in FIG. 4, between the two supply blades 14a and 14b, a plurality of clogging prevention tools 31 for preventing clogging of the stems are interposed. A rod-shaped member 33 attached to the machine body via a stay 32 is inserted into the clogging prevention tool 31. Thereby, it is possible to prevent the clogging prevention tool 31 from rotating with the rotation of the two supply blades 12a and 12b.

  The stalk supply unit 6 and the stalk chopping unit 7 include a transmission mechanism DK that transmits driving to the stalk supply unit 6 and the stalk chopping unit 7, and the stalk supply unit 6 and the shoot chopping unit. There is provided a reverse rotation mechanism GK that rotationally drives 7 in opposite directions.

(Transmission mechanism)
As shown in FIGS. 3, 4, and 6, the transmission mechanism DK is fixed to the output pulley 41 from which the power from the threshing portion E is output and the end of the first rotating shaft 11 so as to be integrally rotatable. A drive pulley 42; an output pulley 41; a transmission belt 43 wound around the drive pulley 42; a tension pulley 44 that tensions the transmission belt 43; and a biasing spring 45 that biases the tension pulley 44 toward the tension side; It has. Thereby, the transmission mechanism DK transmits the power from the threshing part E to the first rotating shaft 11 via the transmission belt 43 and drives the first rotating shaft 11.

(Reverse mechanism)
As shown in FIGS. 4 to 6, the reversing mechanism GK includes a second sprocket 46 (an example of a second rotating body) fixed to the end of the second rotating shaft 13 on the front side and an intermediate side. The first sprocket 47 (an example of the first rotating body) fixed to the end of the first rotating shaft 11 so as to be integrally rotatable, and the rear support fixed in a manner protruding from the side surface 5c of the cutter case 5 A third sprocket 49 (an example of a third rotating body) rotatably attached to the end of the shaft 48, and a transmission chain 50 wound around the first sprocket 47, the second sprocket 46, and the third sprocket 48. (An example of an endless rotating body).

  The outer part of the winding path of the transmission chain 50 is in contact with the outer periphery of the first sprocket 47, and the inner part of the winding path of the transmission chain 50 is in contact with the outer peripheral parts of the second sprocket 46 and the third sprocket 49. Thus, the transmission chain 50 is wound around the first sprocket 47, the second sprocket 46, and the third sprocket 49.

  When the first rotating shaft 11 is driven counterclockwise in FIG. 3, the cutting blade 12 and the first sprocket 47 rotate counterclockwise, the transmission chain 50 rotates clockwise, and the second sprocket 46 rotates clockwise. The second rotating shaft 13 rotates clockwise, and the supply blade 14 rotates clockwise. In this way, the rotation directions of the first rotating shaft 11 and the second rotating shaft 14 are reversed.

  Thus, since the rotation direction of the 1st rotating shaft 11 and the 2nd rotating shaft 14 is reversed by using the winding path outer side and winding path inner side of the transmission chain 50, the 1st rotating shaft 11 and the 1st rotating shaft It is not necessary to use an extra gear to reverse the rotation direction with respect to the two rotating shafts 14, and the number of parts can be reduced.

  As shown in FIG. 5, the outer diameter of the first sprocket 47 is set to be smaller than the outer diameter of the second sprocket 46, and the rotation center O2 of the second sprocket 46 and the rotation center O3 of the third sprocket 49 are The rotation center O1 of the first sprocket 47 is located on the side entering the winding path of the transmission chain 50 with respect to the virtual straight line L1 passing through.

  Thereby, the contact part of the outer peripheral surface of the 1st rotary body 47 and the winding path | route outer side of the transmission chain 50, the contact part of the outer peripheral surface of the 2nd sprocket 46, and the winding path | route inner side of the transmission chain 50, and a 3rd sprocket The contact portion between the outer peripheral surface of 49 and the inside of the winding path of the transmission chain 50 can be made as long as possible. Therefore, it is possible to prevent the transmission chain 50 from coming off the sprockets 46, 47, 49. Further, an arc-shaped detent 51 for preventing the transmission chain 50 from coming off the first sprocket 47 is provided below the first sprocket 47, so that the transmission chain 50 comes off from the first sprocket 47. Can be more reliably prevented.

(Axis adjustment mechanism)
As shown in FIG. 7, an inter-axis adjustment mechanism JK that adjusts the distance between the first rotating shaft 11 and the second rotating shaft 13 across each of the side surface portions 5 c of the cutter case 5 and each of the pair of holders 15. Is provided.

  The inter-axis adjusting mechanism JK includes a pair of upper holes 61a and 61b formed in a vertically aligned state on the upper side of the holder 15, one lower hole 62 formed on the lower side of the holder 15, and a cutter. A pair of upper holes 63a, 63b formed in the vertical direction and shifted in the front-rear direction on the upper side of the side surface part 5c of the case 5 and one lower hole formed on the lower side of the side surface part 5c of the cutter case 5 64, an upper bolt 65 that passes through one of the pair of upper holes 61 a and 61 b of the holder 15 and one of the pair of upper holes 63 a and 63 b of the side surface portion 5 c of the cutter case 5, The lower hole 62 and the lower bolt 66 which penetrates the lower hole 64 of the side surface part 5c of the cutter case 5 are provided.

  In the state shown in FIG. 7B, the cutting blade 12 may be worn due to long-term use of the cutting blade 12, and the polymerization allowance of the cutting blade 12 and the supply blade 14 may be reduced. At this time, the upper bolt 65 is removed from the one upper hole 61b of the holder 15 and the one upper hole 63b of the side surface portion 5c of the cutter case 5, and the holder 15 is swung to the cutting blade 12 side using the lower bolt 66 as a rotation fulcrum. The upper bolt 65 is inserted into the other upper hole 61a of the holder 15 and the other upper hole 63a of the side surface portion 5c of the cutter case 5, and the holder 15 is attached to the side surface portion 5c of the cutter case 5 (FIG. 7 ( see c)).

  In this manner, the upper holes 61a and 61b of the holder 15 are formed in a state where they are aligned in the vertical direction, and the upper holes 63a and 63b of the side surface portion 5c of the cutter case 5 are aligned in the vertical direction and shifted in the front-rear direction. Thus, by simply swinging the holder 15 and replacing the upper bolt 65, the distance between the first rotating shaft 11 and the second rotating shaft 13 is shortened, and the cutting blade 12 and the supply blade 14 The polymerization allowance can be secured.

[Another embodiment]
(1) Instead of the configuration shown in FIGS. 3 to 5, as shown in FIG. 10, a third sprocket 49 is provided at the end of the front support shaft 48, and the end of the second rotation shaft 13 on the intermediate side is provided. The second sprocket 46 is provided, the first sprocket 47 is provided at the end of the first rotary shaft 11 on the rear side, the outer part of the winding path of the transmission chain 50 is in contact with the outer periphery of the second sprocket 46, and the transmission Winding the transmission chain 50 around the second sprocket 46, the first sprocket 47 and the third sprocket 49 so that the inner part of the winding path of the chain 50 is in contact with the outer periphery of the first sprocket 47 and the third sprocket 49 Thus, the first rotation shaft 11 and the second rotation shaft 13 may be rotationally driven in opposite directions by the transmission chain 50.

  When the first rotating shaft 11 is driven counterclockwise in FIG. 10, the first sprocket 47 rotates counterclockwise, the transmission chain 50 rotates counterclockwise, and the second sprocket 46 rotates clockwise, The second rotating shaft 13 rotates clockwise. Also with such a configuration, the rotation directions of the first rotating shaft 11 and the second rotating shaft 13 can be reversed.

(2) Instead of the configuration shown in FIG. 7, an inter-axis adjustment mechanism JK may be configured as shown in FIG. A pair of upper holes 71 formed on the upper side of the holder 15, lower holes 72 formed on the lower side of the holder 15, and a pair of lines formed in the front-rear direction above the side surface portion 5 c of the cutter case 5. The upper holes 73a and 73b, a pair of lower holes 74a and 74b formed in a state of being arranged in the front-rear direction below the side surface portion 5c of the cutter case 5, the upper holes 71 of the holder 15 and the side surfaces of the cutter case 5 Any one of the upper bolt 75 that passes through one of the pair of upper holes 73a and 73b of the portion 5c, and the lower hole 72 of the holder 15 and the pair of lower holes 74a and 74b of the side surface portion 5c of the cutter case 5 And a lower bolt 76 for inserting one of them.

  In the state shown in FIG. 9 (b), the cutting blade 12 may be worn by long-term use of the cutting blade 12, and the polymerization allowance of the cutting blade 12 and the supply blade 14 may be reduced. At this time, the lower bolt 76 is removed from the lower hole 72 b of the holder 15 and one lower hole 74 b of the side surface portion 5 c of the cutter case 5, and the upper bolt 75 is removed from the upper hole 71 of the holder 15 and the side surface portion of the cutter case 5. 5c is removed from one upper hole 73b, and the holder 15 is translated to the cutting blade 12 side. Next, the lower bolt 76 is inserted into the lower hole 72 of the holder 15 and the other lower hole 74 a of the side surface portion 5 c of the cutter case 5, and the upper bolt 75 is inserted into the upper hole 71 of the holder 15 and the side surface of the cutter case 5. The holder 15 is attached to the side surface portion 5c of the cutter case 5 through the other upper hole 73a of the portion 5c (see FIG. 9C).

  Thus, the lower holes 74a and 74b of the side surface portion 5c of the cutter case 5 are formed in a state of being aligned in the front-rear direction, and the upper holes 73a and 73b of the side surface portion 5c of the cutter case 5 are aligned in the front-rear direction. Since it is formed in a state, by simply moving the holder 15 and replacing the upper bolt 75 and the lower bolt 76, the distance between the first rotating shaft 11 and the second rotating shaft 13 is shortened, The polymerization allowance of the cutting blade 12 and the supply blade 14 can be ensured.

(3) In the above embodiment, the rotating body is a plurality of sprockets, and the endless rotating body is a transmission chain around which the plurality of sprockets are wound. However, the present invention is not limited to such a configuration. For example, the rotating body may be a plurality of pulleys, and the endless rotating body may be a transmission belt around which the plurality of pulleys are wound.

(4) In the above embodiment, the output pulley 41 from which the power from the threshing unit E is output, the drive pulley 42 fixed to the end of the first rotating shaft 11 so as to be integrally rotatable, the output pulley 41 and the drive pulley 42 are provided. Although the structure which comprises the power transmission belt 43 etc. to wind and transmitted the motive power from the threshing part E to the 1st rotating shaft 11 via the power transmission belt 43 was illustrated, it is not restricted to such a structure, for example, The output pulley 41 from which the power from the threshing part E is output, the drive pulley (not shown) fixed to the end of the second rotating shaft 13 so as to be integrally rotatable, the output pulley 41 and the transmission wound around the drive pulley It is good also as a structure which provides a belt (not shown) etc. and transmits the motive power from the threshing part E to the 2nd rotating shaft 13 via a transmission belt. Furthermore, an output pulley 41 that outputs power from the threshing unit E, a drive pulley (not shown) linked to the third sprocket 49, a transmission belt (not shown) wound around the output pulley 41 and the drive pulley, and the like. It is good also as a structure which transmits motive power from the threshing part E to the 3rd sprocket 49 via a transmission belt.

(5) As a configuration for switching the lid 5b between the open posture and the closed posture, as shown in FIG. 8, a rod-like member 21 fixed to the lid 5b and a bearing member that rotatably supports the rod-like member 21 22 and a toggle spring 23 that urges the lid 5b to an open posture (see FIG. 8A) or a closed posture (see FIG. 8B).

  Specifically, the rod-like member 21 has the other end portion fixed to the base end of the lid body 5b to form a lid body support portion 21a, and the one end side portion is bent toward the side surface portion 5c of the cutter case 5. As a result, a lever operating portion 21b is formed. Thus, since the rod-shaped member 21 is bent to form the lever operating portion 21b, it is not necessary to provide the lever as a separate member. The bearing member 22 is fixed to each of the side surface portions 5c of the cutter case 5 and supports both sides of the lid support portion 21a. The toggle spring 23 has one end attached to the base end side of the lever operating portion 21 b and the other end attached to the side surface portion 5 c of the cutter case 5. The side surface 5c of the cutter case 5 is provided with a restricting member 24 that restricts the lid 5b in the open posture from swinging to the open side by the contact of the lever operating portion 21b.

  As shown in FIG. 8B, when the lid 5b is in the closed posture, the lever operating portion 21b is operated counterclockwise. At this time, the toggle spring 23 is compressed to bias the lid 5b toward the closed posture. When the lever operating portion 21b is further operated counterclockwise to exceed the dead point, the toggle spring 23 extends to urge the lid 5b toward the open posture. As shown in FIG. 8 (a), when the lever operating portion 21b is further operated counterclockwise and the lid 5b reaches the open posture, the lever operating portion 21b contacts the regulating member 24 and maintains the open posture. To do.

  On the contrary, as shown in FIG. 8A, when the lid 5b is in the open position, the lever operating portion 21b is operated clockwise. At this time, the toggle spring 23 is compressed and biases the lid 5b toward the open posture. When the lever operating portion 21b is further operated clockwise to exceed the dead point, the toggle spring 23 is extended to urge the lid 5b toward the closed posture. As shown in FIG. 8 (b), when the lever operating portion 21b is further operated clockwise and the cover 5b reaches the closed position, the cover 5b contacts the receiving port 5a and maintains the closed position.

  The present invention is applied to a self-detaching combine.

5 Case 5c Both sides 11 of the case 11 First rotating shaft 12 Cut body 13 Second rotating shaft 14 Supply body 15 Holder 46 Second rotating body 47 First rotating body 49 Third rotating body 50 Endless rotating body DK Transmission mechanism JK Between shafts Adjustment mechanism O1, O2, O3 Center of rotation L1 Virtual straight line

Claims (3)

A first rotating shaft and a second rotating shaft that are rotatably supported, a plurality of cutting bodies that are fixed to the first rotating shaft and cut the pedicle, and a pedicle that is fixed to the second rotating shaft is supplied. A plurality of supply bodies, and the first and second rotating shafts are driven to rotate in directions opposite to each other so that the pedicles are shredded between the cut body and the supply body. A pedicle shredding device configured,
The first rotating body fixed to the end of the first rotating shaft, the second rotating body fixed to the end of the second rotating shaft, and the first and second rotating bodies at different positions. A third rotating body rotatably supported; an endless rotating body wound around the first, second, and third rotating bodies; and a transmission mechanism that transmits rotational power to the endless rotating body.
The part of the endless rotating body outside the winding path is in contact with the outer peripheral part of the first rotating body, and the part of the endless rotating body inside the winding path is in contact with the outer peripheral parts of the second and third rotating bodies. By winding the endless rotating body around the first, second and third rotating bodies,
Alternatively, a portion outside the winding path of the endless rotating body is in contact with an outer peripheral portion of the second rotating body, and a portion inside the winding path of the endless rotating body is an outer peripheral portion of the first and third rotating bodies. By winding the endless rotating body around the first, second and third rotating bodies so as to come into contact with
A pedicle shredder configured to rotate the first and second rotating shafts in opposite directions by the endless rotating body. The part of the endless rotating body outside the winding path is in contact with the outer peripheral part of the first rotating body, and the part of the endless rotating body inside the winding path is in contact with the outer peripheral parts of the second and third rotating bodies. Thus, the endless rotating body is wound around the first, second, and third rotating bodies,
Setting the outer diameter of the first rotating body to an outer diameter smaller than the outer diameter of the second rotating body;
The rotation center of the first rotating body is positioned closer to the inside of the winding path of the endless rotating body than the virtual straight line passing through the rotation center of the second rotating body and the rotation center of the third rotating body. The pedicle chopping device according to claim 1. A pair of holders rotatably supporting both ends of the first rotating shaft or the second rotating shaft;
Each of the pair of holders is attached to each of both sides of the case, and the plurality of cut bodies and the plurality of supply bodies are accommodated in the case,
The inter-axis adjustment mechanism that adjusts the distance between the first rotation shaft and the second rotation shaft across each of both side portions of the case and each of the pair of holders is provided. The pedicle chopping device described.

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