JPH0823855A - Application device - Google Patents

Abstract

PURPOSE:To eliminate problems in interference of a tractor attaching part by installing a regulating box near a shutter. CONSTITUTION:This application device comprises a hopper 16, an openable and closable shutter installed at the base of the hopper 16 and a sliding plate, placed in a lateral part of the shutter, connected to the shutter and reciprocated and moved by normal and reverse rotation of a motor.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a spreader. Specifically, it relates to a spraying machine suitable for spraying powdered materials such as fertilizers. More specifically, the present invention relates to a spreader that is pulled by a tractor and sprays fertilizer and the like.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 61-2 has been used as a conventional spraying machine.
89809 "Opening / closing device of agricultural spreader" (conventional example) is known. The opening / closing device is "a shutter along the bottom of the hopper is connected to an opening / closing lever via an intermediary member, and a transmission member driven by a motor or a piston rod of a hydraulic cylinder is connected to the opening / closing lever, and the motor or the hydraulic pressure is connected. An operating switch for operating the cylinder is installed in the driver's seat in the cabin, and an open side limit switch and a closing side limit switch for setting the opening of the shutter are provided at both ends of the swing width of the opening / closing lever. The switch can be moved and adjusted in the vicinity of the open / close lever. "

[0003]

However, in the conventional example, there is a problem that the device becomes large and the volume that occupies the inner portion of the mounting portion such as the three-point link becomes large, which hinders the vertical movement.

[0004]

The present invention provides a hopper, a shutter that is attached to the bottom of the hopper and that can be opened and closed, and a slide plate that is installed on the shutter side and that is connected to the shutter and that is reciprocally moved by forward and reverse rotation of a motor. A spreader, characterized in that

[0005] to provide.

[0006]

When the motor is rotated in the normal and reverse directions, the shutter to be connected is opened and closed by the forward and reverse rotation of the motor. The objects to be scattered stored in the hopper are scattered as the shutter is opened and closed.

[0007]

Embodiment FIG. 1 showing a front view of an embodiment of the present invention, FIG. 2 showing an enlarged perspective view of the same portion, FIG. 3, FIG. 4 showing a partially enlarged sectional view of an adjustment box which is an enlarged sectional view of the same portion, 5 and FIG. 6, which is an enlarged perspective view of the same portion, showing a partially enlarged perspective view of the dial frame.

Reference numeral 11 is a tractor. In this embodiment, the tractor 11 is provided with the cabin 12. 1
The reference numeral 3 designates a sprayer, which in this embodiment is a fertilizer sprayer for spraying fertilizer in powder form. Reference numeral 14 denotes a three-point link, which connects the tractor 11 and the spreader 13 via the support frame 15. Reference numeral 16 is a hopper, which is a support frame 15.
Supported by. A material to be scattered, for example, a fertilizer in powder form is mounted on the hopper 16. Reference numeral 17 denotes a mission, which is installed below the hopper 16. Reference numeral 18 denotes a spray tube, which is installed below the hopper 16. The spraying cylinder 18 is rocked by the operation of the mission 17, and sprays fertilizer.

Reference numeral 21 denotes a bottom plate which constitutes the bottom surface of the hopper 16 and is provided with four fan-shaped openings 22 radially. 23
Is a shutter, which is composed of a plate-like member partially provided with an opening. The shutter 23 is installed so as to overlap the bottom plate 21 on a center shaft 24 attached to the center of the bottom plate 21 and connected to the mission 17. The shutter 23 is rotated about the center shaft 24 as a center of rotation so that the opening 22 of the bottom plate and the opening on the shutter 23 side are aligned with each other, so that the bottom surface of the hopper 16 is opened, and the positions of both openings are displaced to shift the bottom plate. By closing the opening 22 on the 21 side, a closed state is obtained, and by selecting a state between the open state and the closed state, the opening amount of the bottom surface of the hopper 16 is selected.
Reference numeral 25 is a connecting rod, the tip of which is attached to the peripheral portion of the shutter 23. Reference numeral 26 is a bracket, one end of which is attached to the connecting rod 25.

Reference numeral 31 is an adjustment box. The adjustment box 31 has a substantially rectangular parallelepiped shape and is installed inside the support frame 15 and on the side surface of the bottom plate 21 on the bottom surface of the hopper 16. Three
2 is a slide plate. Slide plate 32
Is made of a plate-like body and is accommodated in the adjustment box 31, and is supported by the guide member 33 from above and below so as to be slidable in the width direction in the adjustment box 31 in the lateral direction in FIG. A bracket 26 penetrating through an elongated hole 34 provided in the width direction of the adjustment box 31 is attached to one surface of the slide plate 32 on the hopper 16 side. Reference numeral 35 is a restriction rod. The regulation rod 35 is horizontally attached substantially at right angles to the other surface of the slide plate 32. A rack 36 is fixed to the surface of the slide plate 32. 37 is a pinion gear, rack 3
Meshed with 6. 38 is a motor. Motor 38
Rotates the pinion gear 37 forward and backward. 39 is a control box. Control box 39
Is installed beside the driver's seat in the cabin 12 of the tractor 11, and performs the forward / reverse rotation and the rotation stop operation of the motor 38.

Reference numeral 41 is a dial frame. As shown in FIG. 6, the dial frame 41 has a U-shaped cross section, and the U-shaped portion sandwiches the surface plate of the adjustment box 31, and the dial frame 41 can move along the surface plate as shown in FIG. Is. Reference numeral 42 is an instruction dial mounting hole. An instruction dial 43 is detachably attached to the instruction dial attachment hole 42 with a nut. Instruction dial 4
A scale corresponding to the opening degree of the shutter 23 is described on the surface of the adjustment box 31 along the width direction in which the 3 moves. Four
4 is a stopper. The stopper 44 is located at the top position on the surface side of the surface plate of the dial frame 41 and the regulating rod 3
Install at the height of 5 in the shape of a protrusion. Reference numeral 45 is one limit switch. The limit switch 45 is installed on the rear side plate of the dial frame 41 at the height position of the restriction rod 35 and from the stopper 44 to the pinion gear 37.
46 is the other limit switch. The limit switch 46 is installed at the lower end height position of the slide plate 32 on the side opposite to the limit switch 45. The limit switch 45 and the limit switch 46 are installed in the drive circuit of the motor 38 and detect the operation to turn off the motor operation.

Next, the operation of the embodiment will be described. To increase the opening of the shutter 23, the instruction dial 4
3 is moved in the width direction of the adjustment box 31 to adjust the desired maximum opening degree. Next, the switch of the control box 39 is operated to rotate the motor 38 forward. Then
The pinion gear 37 is rotated, and the rack 36 meshing with the pinion gear 37 moves to the lower left side in FIG. Then, the slide plate 32 to which the rack 36 is fixed is also moved to the left side in FIG. With the movement of the slide plate 32, the bracket 26 and the connecting rod 25 are also moved to the lower left in FIG. Then, the shutter 23 attached to the connecting rod 25 moves in a direction in which the openings of the bottom plate 21 and the shutter 23 coincide with each other and the hole becomes large. When it is moved to a desired opening degree, the restriction rod 35 attached to the slide plate 32 comes into contact with the limit switch 45, the motor drive circuit is disconnected, and the drive of the motor 38 is stopped. If the connecting rod 35 does not stop even if it contacts the limit switch 45, the limit switch 45 collides with a stopper 44 provided on the dial frame 41 and is stopped.

To reduce the opening of the shutter 23, the switch of the control box 39 is operated to rotate the motor 38 in the reverse direction. Then, the pinion gear 37 is rotated and the rack 36 meshing with the pinion gear 37 moves to the right side in FIG. Then, the slide plate 32 to which the rack 36 is fixed is also moved to the right side in FIG. With the movement of the slide plate 32, the bracket 26 and the connecting rod 25 are also moved diagonally upward and rightward in FIG. Then, the shutter 23 attached to the connecting rod 25 moves in a direction in which the openings of the bottom plate 21 and the shutter 23 are displaced and the holes become smaller. When the slide plate 32 is moved to a desired opening, the slide plate 32 comes into contact with the limit switch 45 installed at the position where the shutter 23 is completely closed by the movement of the slide plate 32, the motor drive circuit is disconnected, and the motor 3
The drive of 8 is stopped.

[0014]

Therefore, according to the present invention, since the adjustment box is installed near the shutter, the problem of interference with the tractor mounting portion is eliminated.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a partially enlarged perspective view of an embodiment of the present invention.

FIG. 3 is a partially enlarged sectional view of an embodiment of the present invention.

FIG. 4 is a partially enlarged sectional view of an embodiment of the present invention.

FIG. 5 is a partially enlarged sectional view of an embodiment of the present invention.

FIG. 6 is a partially enlarged perspective view of an embodiment of the present invention.

[Explanation of symbols]

 16 hopper 23 shutter 32 slide plate 38 motor

Claims (1)

[Claims] 1. A sprayer comprising a hopper, a shutter attached to the bottom of the hopper and capable of opening and closing, and a slide plate installed on the shutter side and connected to the shutter and reciprocally moved by forward and reverse rotation of a motor. Machine.