JP3266183B2 - Spraying device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled working machine such as a tractor and the like, which is connected to and mounted on a front part of a self-propelled working machine, such as a seed or a fertilizer, or a sandy or powdery lime or the like. In particular, the present invention relates to an improvement of a shutter unit which can be opened and closed at a bottom opening of a tank having a hopper shape.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 13, for example, a shutter unit of a spraying apparatus of this type has a fixed section which has a tub-like shape in a longitudinal section and has a substantially trough-like length over substantially the entire length in the longitudinal direction. Shutter 51 and this fixed shutter
A movable shutter 52 having a substantially gutter-like shape with a length substantially the same as that of the movable shutter 52 and being slidably mounted in the longitudinal direction on the back side of the 51, and a coupling 54 attached to an output shaft 53-1 of a driving machine 53 (motor). The movable shaft 52 connected by using a screw shaft 55 concentrically connected through a screw shaft 57 and a screw cylinder 57 attached to the movable shutter 52 via an arm piece 56 is opened at the same interval (pitch). By sliding the spraying ports 58 of the movable shutter 52 in the opening direction that is suitable for the spraying ports 59 of the fixed shutter 51, the spraying of the fertilizer and the like stored in the tank 50 can be performed. It becomes possible, while each spray port 58 ... is fixed to each spray port of the shutter 51.
The spraying is stopped by sliding in the closing direction outside the opening position of 59.

[0003] By the way, this type of spraying device is mounted on the front of a self-propelled working machine such as a tractor or the like, and when performing a spraying operation for spraying fertilizers or the like on a field such as a field, the spraying device is applied from one side of the field. Spraying work is performed in turn while turning back to the opposite side and from the other side to one side at the spray width corresponding to the tank's lateral width (length in the longitudinal direction). Is not always several times the width of the tank. For example, when the width of the tank is 2 m, the size of the field is not limited to 10 m square which is five times as large,
Fields vary in size, as they say 11m or 13m square.

[0004]

However, the shutter unit at the bottom of the tank of the conventionally known spraying apparatus has an ON / OFF state which determines whether to spray or stop spraying over the entire length of the bottom opening in the longitudinal direction. It has a shutter structure that can only be switched off. More specifically, the movable shutter, which is slidably mounted on the back surface of the fixed shutter at the bottom of the tank and switches ON and OFF of the spraying, is an integral body having a length substantially equal to the length of the fixed shutter as described above. Therefore, for example, as described above,
The width of the tank is 2m (each spraying width is 2m), 13m
When performing spraying work on all sides of the field, the tank is reciprocated six times from one side of the field to the other side, and from the other side to one side, at a tank width interval of 12 m, so that the tank is within 12 m. Although it is possible to spray the fertilizer and other materials inside, when spraying within the remaining 1m width, the spraying can be performed while re-spraying the already sprayed 1m portion, or can be spread over 1m from the field. It could only be used on an alternative basis. For this reason, there has been a problem in use such as dispersing a large amount of fertilizer or the like and wasting it.

[0005] The present invention has been made in view of such a conventional situation, and the object thereof is to provide a spraying width in a range of the entire width of the tank and a range corresponding to about half of the width of the tank. It is an object of the present invention to provide a spraying apparatus which is capable of spraying in different ways and which is improved so that maintenance and the like of a shutter unit can be easily performed.

[0006]

SUMMARY OF THE INVENTION In order to achieve the object, the present invention provides a tank having a horizontally long rectangular plane and a hopper shape in vertical section, and a rotating bridge in the longitudinal direction at the bottom opening side of the tank. A fertilizer in the tank, which is provided at the bottom opening of the tank at the bottom opening of the tank and is openable and closable in a state supported by a hinge on one side of the opening edge of the tank, and is guided while being rubbed and loosened by the stirring rotor. A shutter unit having a plurality of spray ports for spraying the outside of the tank at required intervals in the length direction, and a drive unit for transmitting power via a mechanism linked to a slidable movable shutter of the shutter unit. The shutter A and the shutter B in which the movable shutter constituting the shutter unit is divided into two parts at the middle part in the length direction in the spraying apparatus provided with the shutter. In constructed, one alone or both either of the shutter A shutter B is to ligate through detachably coupling mechanism so as to slide at the same time, the coupling mechanism, at least a shutter A
And a shutter rod having a connecting member detachably connected to a connecting mechanism at one end side and having a length extending over both of the shutter A and the shutter B; and a shutter A and a shutter B, respectively. An operating portion for inserting and removing a connecting pin into and out of the connecting hole opened in the shutter rod at an interval for connecting the shutter B to the shutter B, and connecting the connecting pin of the operating portion. The gist of the present invention is that both the shutter A and the shutter B are connected via a shutter rod and slid at the same time by respective insertion connections to the holes. According to such technical means, when the spraying operation is performed in the range over the entire width of the tank, the shutter rods A and B on the back surface of the fixed shutter are connected to each other by both connecting holes of the shutter rod bridging. Then, the connecting pins of the operation unit are inserted into the shutter rod, and both the shutters A and B are connected via the shutter rod. Then, both the shutters A and B are simultaneously slid by the movement of the shutter rod connected to the driving device via the connection mechanism to open and close the spray ports. If the spraying operation is to be performed in a range of half the width of the tank, shutter A,
B, for example, by removing the connection pin of the operation unit on the shutter B side from the connection hole of the shutter rod, and performing switching to release the connection state of the shutter B to the shutter rod. Then, as described above, only the shutter A is slid alone by the movement of the shutter rod connected to the driving device via the connection mechanism, thereby opening and closing each spray port.

The tank is supported by a hinge at the bottom opening of the tank at one side in the longitudinal direction thereof, and is located on the open side of the shutter unit which opens in the short direction of the bottom opening with the hinge as an opening / closing fulcrum. The shutter A and the shutter B are each provided with an operation unit, and the shutter rod is provided in a penetrating bridge shape over the operation unit, and further, the shutter rod is provided in a state of being connected to a connecting member and a connecting mechanism of the shutter rod. The open end of the shutter adjusting lever of the degree adjusting mechanism is provided with connecting means comprising a connecting hole and a connecting pin which are detached from each other when the shutter unit is opened, and are engaged with each other when the shutter unit is closed. And According to such technical means, when the shutter unit having the fixed shutter and the movable shutter is rotated about the hinge for the tank as a fulcrum to open the bottom opening of the tank, both shutters A and B are bridged. The connecting means consisting of a connecting pin and a connecting pin between the connecting member of the shutter rod and the open end of the shutter adjusting lever of the opening adjusting mechanism is detached from each other, and the disengageable engaging and connecting state is automatically set. It is released. When a closing operation of closing the shutter unit with respect to the bottom opening of the tank is performed from the opened state, a connection including a connection hole and a connection pin between a connection portion on one end side of the shutter rod and a release end of the shutter adjustment lever is provided. The means are in corresponding engagement with each other.

[0008]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional side view showing an embodiment of the spraying apparatus A of the present invention, wherein 1 is a tank, 2 is disposed at the bottom of the tank in a longitudinally rotating manner, and is accommodated in the tank 1. Granular seeds or fertilizers, or sandy,
A stirring rotor that guides the powder M, such as powdered lime, to each of the spraying ports 4, 5,... Opened in the shutter unit 3 that constitutes the bottom of the tank 1 while stirring as if rubbing. The output shaft 6-1 of the drive 6 disposed on one side of the tank 1 from which the rotor shaft 2-1 of the rotor 2 projects and the rotor shaft 2-1 are connected to both shafts 6-1 and 2-1. While the sprockets 10 and 11 attached and the chain 12 wound around the sprockets 10 and 11 are connected to each other,
The rotation of the output shaft 6-1 in the rotation direction is converted into the horizontal movement of the slidable movable shutter 3-1 of the shutter unit 3 via a linkage mechanism 7 described later.
1 and the movable shutter 3-1 are connected to each other, and the stirring rotor 2 is driven and rotated by the drive unit 6 and is connected to the connecting mechanism 7 via a connecting mechanism 8 which is engaged and disengageable with each other. One of the shutters A3-10 and B3-11 of the movable shutters 3-1 connected together by singly or simultaneously is slid by the driving machine 6 in the opening direction, and each spray port 4 opened. , 5 ... through each spraying conduit 9 so that the powder M in the tank 1 is sprayed on the field.

The tank 1 has a horizontal and rectangular shape having a required length, and has a hopper-like vertical section having an open top and a bottom. A shutter unit 3 is attached to the bottom opening so as to be openable and closable. Is provided with an opening / closing lid 13. The stirring rotor 2 is arranged in a bridging shape over the longitudinal direction on the bottom opening side that can be opened and closed by the shutter unit 3, and the shaft is rotatably arranged on the upper side over the longitudinal direction. The vibrating plate 14 is disposed obliquely in an inclined state while being supported, and the vibrating shaft is disposed in a rotating bridge shape on the lower side of the inclined surface in a state of approaching the vibrating plate 14.
Vibration is given by 15 repetitive rotations.

The shutter unit 3 is provided at a bottom opening of the tank 1 through a hinge 16 and a stopper 17 such as a buckle.
The movable shutter 3-1 includes a shutter A3-10 and a shutter B3-11 slidably mounted on the back surface of the fixed shutter 3-2 (see FIG. 4). The shutter A3-10, shutter B3-11 and shutter A3-1
0, an opening direction in which the spraying ports 4 opened to the shutters B3-11 are positioned at the same intervals (pitch) with respect to the spraying ports 5 opened to the fixed shutter 3-2. 5 at the same time, the powder M in the tank 1 can be sprayed in a range L (the entire length in the length direction of the fixed shutter 3-2) over the entire width of the tank 1 (the state shown in FIG. 5). ) On the other hand, each spray port 4 ... is fixed shutter
3-2, the spraying is stopped by sliding in the closing direction outside the opening position of each of the spraying ports 5 (the state of FIG. 3).

The fixed shutter 3-2 has a length substantially equal to the length of the bottom opening of the tank 1 in the longitudinal direction, and has a size such that the bottom opening can be closed in the short direction thereof, and has a substantially gutter-like cross section.
A well-known structure in which each spray port 5 is opened at a constant interval (pitch) in the longitudinal direction is formed, and one of the curved release edges is hinged to two longitudinal directions at one opening edge side of one side of the bottom of the tank 1. The opening / closing edge (the other of the open edges) which is supported by the hinge 16 and opens with the hinge 16 as an opening / closing fulcrum is a fastener such as a buckle.
A tank 17 is provided at the bottom opening of the tank 1 so as to be openable and closable in the short direction thereof, while being removably locked at two positions in the longitudinal direction on the other opening edge side of the bottom of the tank 1.

The movable shutter 3-1 has a fixed shutter 3-
The vertical cross section slidably attached to the back side of 2 has a substantially gutter-like shape, and each spray port 5 of the fixed shutter 3-2.
Each of the spray ports 4...
The shutter is constituted by a divided shutter A3-10 and a shutter B3-11, and the shutter is moved by a horizontal movement of a shutter rod 8-1 which is detachably connected via an operation section 8-2 of the connection mechanism 8 which will be described later. One of the shutters A3-10 and the shutters B3-11 alone or both are slid in the opening and closing directions simultaneously to open and close the spraying ports 4 with respect to the spraying ports 5 of the fixed shutter 3-2. To be done. In other words, the spraying of the powder and granules M in the tank 1 is possible in the range L1, L2 of about half the width of the tank 1 or in the range L over the entire width of the tank 1, or the spraying can be stopped. Do it.

The connecting mechanism 8 includes a shutter A divided into two parts.
3-10 and shutter B3-11 are detachably connected,
The shutter is linked to the driving device 6 via the linking mechanism 7 to transmit a sliding operation to one or both of the shutters A3-10 and B3-11, and at least the shutters A3-10 and B3-11. A shutter rod 8-1 having a length extending over both
Operation unit A8- provided for 3-10 and shutter B3-11 respectively
2 is provided.

The shutter rod 8-1 is provided with a threaded portion 18 at each of two divided portions of the middle part in the longitudinal direction,
The two screw portions 18 are connected by using a turn bag 19 to enable fine adjustment of the length, and a screw portion 20 provided at one end thereof is held by a double nut 21 with a connecting tool.
8-3, and is detachably connected to the connecting mechanism 7 via the connecting tool 8-3. The shutter A3-10 and the shutter B3-11 are detachably connected by the detachable insertion of a connecting pin 22 of the operation unit 8-2 provided for the shutter A3-10 and the shutter B3-11. Connecting holes 23 are provided at required positions in the longitudinal direction. By the way, the fine adjustment of the length of the shutter rod 8-1 by the turn buckle 19 is performed when the shutter A3-10 and the shutter B3-11 are slidably mounted on the back surface of the fixed shutter 3-2. -
This is performed to adjust the slight processing error of 11 and shutter rod 8-1. To be specific, the shutter rod
8-1 moves shutter A3-10 and shutter B3-11
Are slid in the opening direction at the same time, the respective spraying ports 4 are located at the same intervals on the left and right from the middle part in the longitudinal direction of the fixed shutter 3-2. In the same open state, the movement is properly performed, and when the slide is moved from the open state to the closing direction, each of the spray ports 4.
Are carried out so as to be surely moved out of the opening positions of the spraying ports 5. In particular, turnback
19, the fine adjustment described above is mainly performed on the shutter B3-11 side, and the shutter rod 8-
1 is performed by finely adjusting the holding position of the connector 8-3 by the double nut 21 with respect to the screw portion 20 on one end side.

[0015] The connecting tool 8- provided on the shutter rod 8-1
3 is to bend a band-shaped plate material having an appropriate thickness into a substantially laterally L-shape, and to use the double nut 21 described above to fold the upstanding piece 8-30 into the screw portion 20 on one end side of the shutter rod 8-1.
The fixing position is fixed so as to be able to be adjusted and displaced appropriately, and the horizontal piece 8-31 has an opening adjustment mechanism described later.
A connecting hole 26 is provided for engaging and connecting with a connecting pin 25 provided on the shutter adjusting lever 24-2 of the 24 so as to be detachable. The connection hole 26 has a long hole shape in the width direction of the connection tool 8-3, and is provided with respect to the connection pin 25 projecting downward at the time of opening / closing operation of the shutter unit 3 with respect to the bottom opening of the tank 1, particularly at the time of closing operation. The movement of the engagement connection is automatically and reliably performed (see FIG. 7).

The operation unit 8-2 is provided with shutter rods A3-10 and B3-11, respectively.
8-1 is slidably supported in a penetrating bridge form, and the connecting pin 22 of the operation section 8-2 is inserted into two connecting holes 23 on the left and right sides of the shutter rod 8-1 so that the shutter rod 8-1 is inserted.
By connecting the shutter A3-10 and the shutter B3-11 to 1 respectively, both the shutter A3-10 and the shutter B3-11 are simultaneously operated by the movement of the shutter rod 8-1. , 5,... Are slid in the opening and closing directions so that the connection pin 22 is pulled out from one of the connection holes 23, for example, the connection hole 23 on the shutter B3-11 side, and is connected to the shutter rod 8-1. Is released, only the shutter A8-10, which is connected by the movement of the shutter rod 8-1, alone receives the spray ports 4 ... 5.
The opening and closing of the shutter unit 3 is opened from the open edge side of the bottom of the tank 1 with the hinge 16 as the opening / closing fulcrum, as described above. A square or round rod tube 8-20 for horizontally inserting the shutter rod 8-1 is fixed on the support plate 27 attached to the shutter A3-10 and the shutter B3-11 while facing sideways. Along with the rod cylinder 8-20, a support 8-21 bent in a plane substantially crank shape is further fixed laterally from the rod cylinder 8-20, and the bent horizontal portion is further attached to the support 8-21. The connecting pin 22 is provided in a state where the connecting pin 22 is provided in a state where the connecting pin 22 is inserted in the connecting hole 23 of the shutter rod 8-1 by a spring material 28 while being penetrated. Against the spring force of the spring material 28 State the connecting pin 22 is inserted is formed to be held (the solid line state of the enlarged view of FIG. 3). In the figure, reference numeral 29 denotes a concave notch provided at the upper end edge of the support 8-21, in which the connection pin 22 pulled out from the connection hole 23 against the elastic force of the spring material 28 is pulled out. (The state shown by the two-dot chain line in the enlarged view of FIG. 3 and the shutter B3-11 side in FIG. 6).

Thus, the seeds and fertilizer, etc., which are connected and mounted on the front part of the self-propelled working machine B such as a tractor,
In a spraying apparatus for spraying powdery material M such as powdered lime over a field such as a field, when spraying is performed in a range L over the entire width of the tank 1, a shutter A3-1 divided into two parts.
0, the connecting pin 22 of the operation section 8-2 of the shutter B3-11 is inserted into the connecting hole 23 of the shutter rod 8-1, and the shutter rod 8-1 is connected to the shutter A3-10 and the shutter B8-11. Both are connected. Then, the movement in the rotation direction of the output shaft 6-1 of the driving machine 6 is controlled by the movable shutter.
Coupling mechanism 7 that converts to 3-1 horizontal movement
The shutter rods 8-3 connected to the driving device 6 via the opening adjustment mechanism 24 move simultaneously to move the shutters A3-10 and B3-11 at the same time, so that the respective spraying ports 4 are fixed. -2, and the opening / closing operation is performed so as to be out of the position of the opening of each spray port 5 (the state of FIGS. 3 and 5). When the spraying operation is performed in the half range of the width of the tank 1 (the length range of the shutters A3-10 and B3-11, respectively) L1 or L2, one of the shutters A3-10 and B3-11 is used. For example, as shown in FIG.
By pulling out the connecting pin 22 of the operating part 8-2 on the side from the connecting hole 23 of the shutter rod 8-1 against the spring material 28 and hooking and holding it on the concave notch 29 of the support 8-21, Shutter rod 8-
The connected state of the shutter B3-11 to 1 is released. Then, as described above, only the shutter A3-10 connected to the rod 8-1 by the movement of the shutter rod 8-1 connected to the driving device 6 via the connection mechanism 7 and the opening adjustment mechanism 24 alone. The sliding operation is performed so that each spray opening 4 is adjusted to a position suitable for each spray opening 5 in the range L1 opened / closed by the shutter A3-10 of the fixed shutter 3-2, or the opening / closing operation that deviates from the opening position of each spray opening 5 is performed. (FIGS. 3 and 6). Therefore, according to the spraying apparatus A of the present embodiment, the shutter A3-10, the shutter B
3-11, a range L over the entire width of the tank 1 that is opened and closed by both the shutter A3-10 and the shutter B3-
11 Spray the powder M in the tank 1 in the range L1 or L2 in which opening and closing are performed by a single unit, or stop the spraying.
Spraying can be done in different ways.

Next, the movement in the rotation direction of the output shaft 6-1 of the drive unit 6 is transmitted to the shutter rod 8-1 while being converted into the movement in the horizontal direction of the movable shutter 3-1.
The shutter B3-11 is fixed. Each spray port 5 of the shutter 3-2 ...
The linking mechanism 7 serving to slide the vehicle in the opening and closing directions will be described.
The output shaft 6-1 of the drive unit 6, which can be switched between forward rotation and reverse rotation by turning on and off a switch box (not shown) installed in a state electrically connected to the driver's seat, etc. An output portion 7-1 having a connecting boss 7-10 for an arm at the protruding end thereof, and a side surface on which the connecting boss 7-10 of the output portion 7-1 is engaged and connected. An output transmission arm 7-2 having an output transmission window 7-20 which is opened in a substantially L-shape when viewed at one longitudinal end thereof;
At the other end of the arm 7-2, the arm 7-2 is connected and supported so as to be able to swing up and down, and the tank is changed so that the forward / backward movement of the arm 7-2 is changed into a horizontal movement in a right angle direction. A conversion link 7-3 pivotally disposed on the base 30-1 of the machine frame 30 on one side, and the conversion link 7- pivoting about the pivot 31 with respect to the base 30-1 as a fulcrum. Movement 3 is the opening adjustment mechanism 24
24-1, a shutter adjustment lever 24-2 pivotally mounted on the scale 24-1, and an adjustment lever 24
-2 is transmitted downward to the shutter rod 8-1 via a connecting pin 25, which is provided on the open end of the connecting member 8-3 so as to project downward and the connecting hole 26 of the connecting tool 8-3 is detachably connected. A3-10 and shutter B3-11 are configured to slide in the open and close directions (see FIGS. 3 and 5, and FIGS. 8 to 11).

The output transmission window 7-20 is a connecting boss of the output section 7-1.
In a state where the engagement boss 7-10 is engaged and linked, the connection boss 7-10 is interlocked with the rotation of the output shaft 6-1 while the output shaft 6-1 is rotating in the normal rotation direction.
The output shaft 6-1 rotates forward and the sliding part 7-21, which is open to the required length in the length direction of the output transmission arm 7-2, so that the In the required rotation range from the start, the output shaft 6-1 switches from normal rotation to reverse rotation, and rotates in the reverse direction. At least, the rear end side of the sliding portion 7-21 (the output transmission arm 7-2) is moved so that the output transmission arm 7-1 is moved backward and forward.
Of the sliding part 7-21 located at the other end of the
It is formed of a locking portion 7-22 which is communicated at a right angle so as to have a substantially L-shape in side view with respect to 6-21 and is opened downward.

The movement of the output shaft 6-1 of the driving machine 6 in the rotational direction (movement of the output transmission arm 7-2 in the forward and backward directions described above) is controlled by the shutters A3-10 and B3- of the movable shutter 3-1. The conversion link 7-3, which serves to change the direction of the slide 11 to the horizontal direction of sliding in the opening and closing directions with respect to the spraying ports 5 of the fixed shutter 3-2, is a plan view having an appropriate size. It is formed in an approximately isosceles triangular shape.
The 90 ° corner is pivotally mounted on the base 30-1 of the machine frame 30 where the other end of the output transmission arm 7-2 is located.
It is arranged so that it can rotate in the horizontal direction around the fulcrum. Then, a support portion 7-30 is erected on a corner portion of approximately 30 °, and the other end side of the output transmission arm 7-2 is connected to and supported by the support portion 7-30 so as to be vertically swingable. .

Next, the opening adjustment mechanism 24 will be described. One end is pivotally connected to the remaining approximately 60 ° corner of the conversion link 7-3, and the other end is mounted on the base 30-1 of the machine frame 30. Support link
The output link arm 7-2 is pivotally supported via the pivot 24-3, and the pivoting portion 32 of the support link 24-3 with respect to the machine frame 21 and the pivoting of the conversion link 7-3 with the retraction movement of the output transmission arm 7-2. A scale plate 24-1 in which the movable shutter 3-1 moves in parallel in the sliding direction with the portion 31 as a fulcrum, and a scale plate 24-1 which has a substantially fan shape in plan view, and which is pivotally mounted on the scale plate 24-1. The sliding movement of the movable shutter 3-1 can be varied by rotating the pivoting portion 33 to the left or right with the fulcrum as a fulcrum in accordance with a scale (not shown) provided with 1. In other words, fixed shutter 3-
2. A shutter adjusting lever 24-2 for adjusting the position of the movable shutter 3-1 to each spraying port 4... With respect to each spraying port 5.
When the shutter unit 3 is opened and closed with respect to the bottom opening of the tank 1 at one end side of the shutter rod 8-1 with respect to the connecting pin 25 projecting downward at the open end of the adjusting lever 24-2. Connection hole 8 of connection tool 8-3 prepared for
It is formed so that it may be engaged and connected so as to be able to be freely detached from the vehicle.

According to the linking mechanism 7 described in detail in the present embodiment, the shutters A3-10 and A3-10 of the movable shutter 3-1 can be used.
When the shutter B3-11 is slid in the opening direction, the driver 6 is operated by operating a switch box (hand switch) installed in the driver's seat or the like of the self-propelled work machine B. Then, the output shaft 6-1 rotates in the normal rotation direction (clockwise) from the stopped state. The connection boss 7-10 of the output unit 7-1, which also rotates in the normal rotation direction from the start, rotates the power transmission window 7-20. The output section 7-1 (the output shaft 6-1) which shifts from the locked and connected state to the locking section 7-22 (the state of FIGS. 8 and 9) to the sliding section 7-21 of the power transmission window 7-20. ) Is transmitted to the power transmission arm 7-2 in the rotation range of the power transmission arm 7-2.
7-2 moves backward from the forward limit. Then, the movement of the power transmission arm 7-2 is transmitted to the conversion link 7-3, and the frame 30
The movement of the conversion link 7-3, which horizontally rotates clockwise in plan view, about the pivot portion 31 of the base portion 30-1 with respect to the base portion 30-1, is transmitted to the scale 24-1 of the opening adjustment mechanism 24, and the conversion link 7- The shutter rod is moved by the movement of the scale plate 24-1 that translates in the opening direction of the movable shutter 3-1 with the pivot portion 31 of FIG. 3 and the pivot portion 32 of the support link 24-3 with respect to the base portion 30-1 as a fulcrum. 8-1 is horizontally moved in the same opening direction, and shutters A3-10 and B3-11, which are individually connected via the operation unit 8-2, are slid in the opening direction (from the state of FIG. 3 to FIG. 3). 5 state). On the other hand, the shutters A3-10 and B3-11 are connected to the spraying ports 4 of the fixed shutter 3-2.
In the case of sliding in the closing direction from the above-mentioned open state in which the position is adapted, by performing an operation of turning off the switch box, the output shaft 6-1 of the driving machine 6 is switched from the normal rotation to the reverse rotation to rotate. The output shaft 6-1 rotates in the reverse direction. Then, the connecting boss 7-10 of the output portion 7-1, which also rotates in the reverse direction, moves from the sliding portion 7-21 of the power transmission window 7-20 to the locking portion 7-.
22 and the rotation range (the connection boss 7-10) is again locked and connected to the locking portion 7-22 and rotates in the locked and connected state.
Shifts from the sliding portion 7-21 to the locking portion 7-22, and the locking portion 7-22
The forward movement force is transmitted to the power transmission arm 7-2 in the transition range where the power transmission arm 7-2
2 is transmitted to the conversion link 7-3, and the conversion link 7-3 rotates horizontally in a counterclockwise direction in a plan view with the pivot portion 31 of the machine casing 30 to the base portion 30-1 as a fulcrum. The movement in the direction is transmitted to the scale 24-1 of the opening adjustment mechanism 24, and the pivotal connection 31 of the conversion link 7-3 and the base of the support link 24-3.
The shutter rod 8-1 is horizontally moved in the closing direction by the movement of the scale plate 24-1 which moves in parallel with the movable shutter 3-1 in the closing direction with the pivot portion 32 with respect to the pivot portion 30-1 as a fulcrum. Two
The shutter A3-10 and the shutter B3-11, which are individually connected to each other via the shutter, are slid in the closing direction (FIG. 5).
From the state of FIG. 3 to the state of FIG. 3). At this time, the output transmission arm 7-2 moves forward from the retreat limit, and the conversion link 7-3, which horizontally rotates counterclockwise in plan view, around the pivotal connection portion 31 with respect to the base portion 30-1, and the base portion 30- The driving machine 6 is stopped when it contacts the limit switch 34 disposed on the upper side.

FIG. 12 shows a configuration of a shutter rod 8-1 for connecting a shutter A3-10 and a shutter B3-11 of a movable shutter 3-1 via respective operation units 8-2, and a shutter A3-10 and a shutter. Each operation unit A for B3-11
8-2 is another embodiment in which the mounting mode of the second embodiment is changed.
In such an embodiment, the shutter rod 8-1 is formed as an integral member having a length bridging the shutter A3-10 and the shutter B3-11, while the operation unit 8-2 is connected to the shutter A3-.
The support plate 27 described in detail in the above embodiment attached to the shutter 10 and the shutter B3-11 is provided with an elongated hole 35 in the opening and closing sliding direction of the movable shutter 3-1. Then, the rod cylinder 8-20 of the operation unit 8-2 is fixed, and the fine adjustment plate 37 having the nut 36 fixed to the slot 35 corresponding to the opening position is fixed to the support plate.
On the support plate 27, a set screw 38 such as a bolt is screwed into the nut 36 from the back side of the support plate 27 through a long hole 35, and the operation unit 8 is mounted on the support plate 27 via a fine adjustment plate 37. -2 is formed so that the operating section 8-2 can be appropriately moved and adjusted in the longitudinal direction of the long hole 35 (opening / closing direction of the movable shutter 3-1) by loosening the set screw 38. It is. That is, instead of adjusting the length of the shutter rod 8-1 by the turn buckle 19 described in detail in the above-described embodiment, by appropriately moving and adjusting the operation unit 8-2, for example, as described above, the fixed shutter 3-
2 can be finely adjusted such that the spraying ports 4 of the shutters A3-10 and B3-11 are adapted to the same opening state with respect to the spraying ports 5 of FIG. .

In the detailed description of the above embodiment, the operator inserts and removes the connecting pin 22 into and out of the connecting hole 23 of the shutter rod 8-1 by grasping the connecting pin 23. Although the manual operation is described in detail, the operation of inserting and removing the connecting pin 23 may be performed electrically. For example, although not shown, the shutter A3-
An operation unit 8-2 provided respectively on the shutter 10 and the shutter B3-11 via the support plate 27 is constructed by a solenoid or the like, and is turned on and off by electricity.
F The connection pin 23 is connected to the electrode rod of the solenoid that appears and disappears by the switching operation, and is installed in a state of being electrically connected to the driver's seat of the self-propelled work machine B such as a tractor. The connection pin 22 may be automatically inserted into and removed from the connection hole 22 of the shutter rod 8-1 by a switch operation.

[0025]

Since the spraying device of the present invention is constructed as described above, the following effects are obtained. . The slidable movable shutter of the shutter unit is constituted by a shutter A and a shutter B which are divided into two at a halfway portion in the longitudinal direction.
And a shutter B, which are mounted on a back surface of a fixed shutter provided at the bottom opening of the tank so as to be openable and closable so as to be slid independently or simultaneously at the same time via a connection mechanism. 2m
When the spraying operation is performed on a 13m-square field, the shutter A and the shutter B are both slid in the opening direction when the spraying operation is performed on a 13m-square field. After reciprocating the tank six times from side to side and from one side to the other side at intervals of the width of the tank, and spraying the granular material in the tank over a range of 12 m, one of the shutters A and B is used alone. By performing switching to release the connection state with respect to the connection mechanism so as to slide, only one of the shutters A and B is slid alone in the opening direction and the powder particles in the tank remain within a width of 1 m remaining. It is possible to freely change the spraying form such as spraying an object. Spraying can be performed in two types of spraying ranges: a range extending over the entire width of the tank and a half range of the width.

[0026] When a shutter unit having a fixed shutter and a movable shutter is rotated about a hinge with respect to the tank as a fulcrum to open a bottom opening of the tank, a shutter rod connecting member that bridges both shutters A and B is provided. A connecting means comprising a connecting hole and a connecting pin with a release end of a shutter adjusting lever of the opening adjusting mechanism provided in a state of being connected to the connecting mechanism is detached from each other, and the disengageable engagement connecting state is automatically set. On the other hand, when the shutter unit is closed from the open state with respect to the bottom opening of the tank when the shutter unit is released, the connection between the connector at one end of the shutter rod and the release end of the shutter adjusting lever is performed. Since the connecting means consisting of the hole and the connecting pin is formed so as to correspond to each other and to be engaged and connected, for example, After There has been completed,
Opening and closing the shutter unit when performing maintenance such as taking out particles remaining in the tank to the outside or removing particles adhering to the inner wall of the tank, the stirring rotor, and the inside of the shutter unit. Can be performed easily and quickly.

Therefore, according to the spraying apparatus of the present invention, both the shutter A and the shutter B, which are divided into two movable shutters, are simultaneously slid or one of the shutters A and B is slid alone. Spraying can be divided into two types: a range in which the spray width extends over the entire width of the tank, and a range corresponding to about half of the horizontal width. Moreover, as in the prior art, the screwed state of the screw shaft and the screw cylinder connecting the driving device and the movable shutter is released,
Alternatively, the open edge side of the shutter unit that is supported by the hinge and opened and closed can be tanked without requiring a troublesome operation such as releasing the connection state using the R pin to the release end of the shutter adjustment lever of the opening adjustment mechanism. The shutter unit can be opened and closed using the hinge as an opening / closing fulcrum simply by releasing the locked state by a stopper such as a buckle that is detachably supported with respect to the above-described operation. Excellent effects can also be expected in terms of handling, such as easy maintenance and the like.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing an embodiment of a spraying device of the present invention.

FIG. 2 is a longitudinal sectional view taken along the line II-II of FIG.

FIG. 3 is a cross-sectional plan view taken along the line III-III of FIG. 2;

FIG. 4 is a perspective view showing a shutter unit separately, in which the lengths of shutters A and B of a fixed shutter and a movable shutter are omitted.

FIG. 5 is a cross-sectional plan view taken along line III-III of FIG. 2 showing a state in which both shutters A and B are slid in the opening direction.

FIG. 6 is a cross-sectional plan view taken along the line III-III of FIG. 2, showing a state where only the shutter A side is slid alone in the opening direction.

FIG. 7 is a longitudinal side view, wherein (a) shows a state in which the bottom opening of the tank is closed by the shutter unit, (b)
Indicates the shutter unit opened with the hinge as the fulcrum

FIG. 8 is a side view of a main part showing a linkage mechanism for transmitting the power of the driving device to the movable shutter, showing a state in which the output transmission arm is on standby at a forward limit.

FIG. 9 is a plan view of the tank, in which the tank is not shown.

FIG. 10 is a side view showing a state in which the output transmission arm is moved backward from a forward limit to a backward limit.

FIG. 11 is a plan view of the tank, in which a tank is not shown.

FIG. 12 is a cross-sectional plan view taken along the line III-III of FIG. 2 showing another embodiment.

FIG. 13 is a plan view showing a conventional example.

[Explanation of symbols]

A: Spraying device 1 ... Tank 2 ... Stirring rotor 3 ... Shutter unit 3-1 ... Movable shutter 3-10 ... Shutter A 3-10 ... Shutter B 3-2 ... Fixed shutter 4, 5 ... Spray port 6 ... Driving machine 7 … Linking mechanism 8… Connecting mechanism 8-1… Shutter rod 8-1… Operation part 8-3… Connecting tool 16… Hinge 17… Stopper 22… Connecting pin 23… Connecting hole 24… Rotation adjusting mechanism 24-2… Shutter adjustment lever 25 ... Connection pin (connection means) 26 ... Connection hole (connection means) M ... Powder

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) B05B 17/00 101 A01M 9/00 B05C 19/06 A01C 15/06-15/08

Claims (3)

(57) [Claims] 1. A tank having a horizontally-horizontal rectangular shape and a hopper-like shape in vertical section, a stirring rotor arranged in a longitudinally-rotating cross-linking shape at a bottom opening side of the tank, and a stirring rotor arranged at a bottom opening of the tank. A plurality of spray ports are provided to be openable and closable while being supported by a hinge at one opening edge side in the longitudinal direction, and to spray powdery particles in the tank guided out while being kneaded and loosened by a stirring rotor. A shutter unit is provided in a spraying apparatus including a shutter unit having a predetermined interval in a vertical direction and a drive unit that transmits power via a mechanism linked to a slidable movable shutter of the shutter unit. The movable shutter is constituted by a shutter A and a shutter B which are divided into two parts at the middle part in the longitudinal direction, and the shutter A and the shutter B are divided into two parts. Re or the other is alone or both spray apparatus characterized by comprising ligated via a detachably coupling mechanism so as to slide at the same time. 2. A connecting device according to claim 1, wherein the connecting mechanism has a length extending at least over both the shutter A and the shutter B and is connected at one end to the connecting mechanism so as to be freely detachable from the connecting mechanism. A shutter rod, and shutters A and B respectively provided with shutter pins, and a connecting pin inserted into and removed from connecting holes opened in the shutter rod at intervals for connecting the shutters A and B respectively. And an operating portion for freely inserting and connecting, wherein both the shutter A and the shutter B are connected via a shutter rod by the respective insertion connection of the connecting pin of the connecting pin to the connecting hole, and slide simultaneously. Spraying device characterized by doing. 3. The shutter unit according to claim 2, wherein the shutter is supported by a hinge at the bottom opening of the tank at one side in the longitudinal direction thereof, and opens in the short direction of the bottom opening with the hinge as an opening / closing fulcrum. The shutter A and the shutter B are each provided with an operating portion so as to be present on the open edge side of the shutter rod, and the shutter rod is provided in a bridge shape over the operating portion, and further connected to the shutter rod connecting member and the linking mechanism. At the open end of the shutter adjusting lever of the opening adjusting mechanism provided in the state, a connecting means comprising a connecting hole and a connecting pin which are detached from each other when the shutter unit is opened, and are engaged with each other when the shutter unit is closed, is provided. A spraying device characterized by being provided.