JPH07155019A - Horizontal control device for management work equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To enable accurate horizontal control of only the work body of the management work machine mounted on the rear part of the riding management machine. [Structure] A main body of a management work machine S mounted on a rear part of a traveling machine body A via a work machine mounting device B and a spray nozzle N which is a work body attached to the main body are rotated by a rolling shaft 7 provided at a lower center. A horizontal control actuator 9 which is movably connected and is maintained in a horizontal state at a position apart from the rolling shaft 7 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction of a horizontal control device for a work body mounted on the rear part of a riding management machine and mounted on the rear part of the work machine.

[0002]

2. Description of the Related Art Conventionally, a working machine is mounted on a rear portion of a tractor via a three-point link type working machine mounting device, and the working machine is attached to a lift rod on one of the left and right sides of the three-point link type working machine mounting device. A technique is known in which a hydraulic cylinder is interposed and the work machine is horizontally controlled by expanding and contracting the cylinder. Also, equipped with a pest control machine as the working machine,
When performing the control work while horizontally controlling the control machine,
There is also known a technique of vertically adjusting the boom of the pest control machine in conjunction with horizontal control by the work machine mounting device so that the boom extended from the pest control machine does not come into contact with and damage the field scene or the like. For example, it is like the technique described in Japanese Utility Model Publication No. 5-43608.

[0003]

In a conventional riding management machine, for example, a rice transplanter, a horizontal control device cannot be provided in the work machine mounting device, and therefore, it is installed in the work machine with a plant. However, by using the main body of this rice transplanter, when removing the planting work machine and replacing it with another work machine such as a pest control machine, the replaced work machine does not have a horizontal control device. It was not possible to perform horizontal control during work such as pest control. Further, the conventional structure of vertically adjusting the boom of the pest control machine by interlocking with the horizontal control by the work machine mounting device requires a separate actuator for vertically adjusting the boom, which makes the structure complicated. Therefore, the present invention is to dispose a horizontal control device in the rear part of the working machine of the passenger management machine so as to enable horizontal control with a simple structure and high accuracy.

[0004]

As a means for solving the above problems, the present invention is to attach a main body of a management work machine to a rear part of a traveling machine body through a work machine mounting device, and to attach a main body rear part of the management work machine. A work body having a tilt center attached to it is rotatably attached via a rolling shaft, and an actuator for correcting the left-right tilt is provided at a position distant from the rolling shaft, which is configured to keep the work body horizontal. Is.

[0005]

With this configuration, even if the management work machine tilts to the left or right, the horizontal control actuator is driven to rotate the work body about the rolling axis as a fulcrum, and the work body is tilted to the left or right. Can be rectified and kept level.

[0006]

EXAMPLES Next, examples of the present invention will be described. Figure 1
2 is a side view showing an embodiment of the present invention, FIG.
FIG. 3 is a rear view of the same.

In FIGS. 1, 2 and 3, the passenger management machine A
For example, if a planting work machine is installed at the rear of the work machine mounting device, it becomes a rice transplanter, and if this planting work machine is removed, a management work machine such as a pest control machine can be installed and it can be used as a general-purpose machine. is there. The configuration of the traveling machine body of the passenger management machine A is such that front wheels 21 and 21 and rear wheels 22 and 22 are arranged on the front and rear and left and right sides, an engine E is mounted on a machine body frame 36 at the front, and the traveling machine body is centered. A driver's seat 23 and a steering wheel 24 are provided in the vehicle, and the front wheels 21, 21 of the passenger management machine A are positioned within the width of the locus where the rear wheels 22, 22 come into contact with the ground when the vehicle travels straight ahead. The front wheels are configured so that the locus of the wheels is only the ground locus of the rear wheels 22 and 22, the passage width of the wheels in the paddy field is minimized, and the risk of stepping on the plant portion of the growing crop is minimized. The outer circumference of the upper part of 21, 21 is trapezoidal in side view and hexagonal in plan view 2
Covered by 9 ・ 29, in front of the frame 29 ・ 29, there is provided a grass body 30 ・ 30 made of a plate material having a V-shape in plan view and a parallelogram in side view, which guides a crop to the outside of the width of the wheel during traveling. ing.

In the vicinity of the side surface of the driver's seat 23 of the passenger management machine A, a main gear shift lever 31, a lifting / lowering operation clutch lever 32, an independent lifting lever 33 and a hydraulic sensitivity lever 3 are provided.
4 is provided, and the lifting and operating clutch lever 3 is provided.
2 drives the hydraulic cylinder 25, and the working machine mounting device B
The management work machine S is moved up and down via the
The independent elevating lever 33 is configured to be able to operate the on / off of power taken out from the shaft 4, and the independent elevating lever 33 separates the hydraulic cylinder 25 via a sensor wire 35 independently of the elevating and actuating clutch lever 32. It is configured such that it can be driven and the management work machine A can be moved up and down to an arbitrary position via the work machine mounting device B. The working machine mounting device B is composed of a top link 26, a lower link 27, 27, and a gate column 28, which can be vertically rotated by a hydraulic cylinder 25. A control machine is installed as the management work machine S.

The management work machine S is a main body supporting base 1 which is detachably attached to the gate-shaped column 28 of the work machine mounting apparatus B.
, A tank support portion 2 is projectingly provided in front of an upper portion of the main body support base 1 to mount a chemical liquid tank T, and a pump support portion 3 is attached to a vertical midway portion of the main body support base 1 to provide a spray pump. An input shaft 5 is mounted in the center of the lowermost part, and an input shaft 5 is interlocked with the PTO shaft 4 projecting from the mission case M of the passenger management machine A in the front-rear direction. The input shaft 5
A pulley 18 is fixed to the rear end of the belt 1
9. The motive power from the PT0 shaft 4 is transmitted to the spray pump P via the pulley 20 to drive the spray pump P.

A spray nozzle N, which is a working body, is attached to the rear of the management work machine S so as to be rotatable left and right.
The spray nozzle N is a foldable rod type and can be stored on the left and right sides upward (or diagonally forward), is extended horizontally during work, and the central portion is supported by the lower frame 6b of the nozzle support frame 6, The nozzle support frame 6 is formed in a rectangular shape when viewed from the rear by upper and lower frames 6a and 6b and vertical frames 6c and 6c connecting left and right ends of the upper and lower frames. The central portion of the lower frame 6b and the central portion of the lower rear portion of the main body support 1 are rotatably connected to each other via a rolling shaft 7, and the spray nozzle N is rotatably connected to the upper surface of the lower frame 6b in the vicinity of the rolling shaft 7. Is the tilt sensor 1
0 is provided. The main body of the rolling shaft 7 is fixed to the main body supporting base 1, and the shaft portion is fixed to the nozzle supporting frame 6.

A horizontal control actuator 9 is provided on the upper rear portion of the main body support 1 via mounting arms 8 protruding rearward, and its position is the rolling shaft 7
The horizontal control actuator 9 is located at a distant position on the upper side.
2 and a sliding body 13 that slides on the feed screw 12 in accordance with the rotation thereof. The sliding body 13 is a locking body protrudingly provided at the center of the upper frame 6a of the nozzle support frame 6. It is connected to 14.

The main body supporting base 1 and the nozzle supporting frame 6
A gas spring 15 is interposed between the gas spring 15 and the gas spring 15. As shown in FIG. 3, the base of the gas spring 15 is at the tip of an arm 16 projecting from one rear side surface of the main body support 1. The tip end of the other end is pivotally supported and is pivotally supported by a support portion 17 fixed to the lower frame 6b of the nozzle support frame 6 so as to provide a buffering action when the horizontal tilt of the spray nozzle N is rapidly rotated. I have to.

The tilt sensor 10 and the horizontal control actuator 9 are connected to a control circuit, the tilt sensor 10 senses the tilt angle of the spray nozzle N, and the motor 11 supplies the feed screw 12 based on the tilt angle. Is rotated so that the sliding body 13 slides to the left and right to control the spray nozzle N so that it is always horizontal. At this time,
Since the distance between the both sides of the spray nozzle N and the rolling shaft 7 is long, the spray nozzle N is largely tilted even if it is slightly tilted. Therefore, the horizontal control actuator 9 is provided at a position apart from the rolling shaft 7 and tilts left and right. On the other hand, it is controlled so that even a small angle is horizontal.

With the above construction, when spraying a chemical solution to a growing crop in a paddy field, etc., the lift / operation clutch lever 32 is operated to put the PTO shaft 4 in the "on" state and spray it. The pump P is driven to inhale and discharge the chemical solution in the chemical solution tank T so that the chemical solution can be sprayed from the spray nozzle N. In this state, the independent elevating lever 33 is operated, and a control device is provided above the growing crop. The management work machine S is positioned.

Then, while the riding management machine A is running, the chemicals are sprayed by the management work machine S to obtain the riding management machine A.
Is inclined to the left and right due to the unevenness of the mud such as paddy fields, and accordingly the management work machine S is inclined to the left and right, the gas spring 15 is expanded and contracted through the locking body 14 of the nozzle support frame 6. The steep inclination of the spray nozzle N on the left and right is alleviated, the inclination angle is detected by the inclination sensor 10, and the feed screw 12 is rotated by the motor 11 based on the inclination angle to slide the slide body 13.
It is slid to the left and right to keep it in a horizontal position to prevent uneven spraying of the chemical liquid and enable uniform spraying work.

The management work machine S in this embodiment is
The main body is composed of a spray pump P and a chemical liquid tank T, a spray nozzle N is provided as a working body thereof, and a pest control machine for spraying the chemical liquid is used. It can also be applied to management work machines that perform work.

[0017]

Since the present invention is constructed as described above, it has the following effects. That is, since the rolling shaft that connects the body of the management work machine and the work body and the horizontal control actuator are provided at a position apart from each other, it is possible to easily perform the minute angle control of the work body and improve the work efficiency. The accuracy can be improved.

[Detailed Description of Drawings]

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

FIG. 2 is a plan view of the same.

FIG. 3 is a rear view of the same.

[Explanation of symbols]

 1 Main body support 6 Nozzle support frame 7 Rolling shaft 9 Horizontal control actuator 10 Inclination sensor N Spray nozzle P Spray pump T Chemical solution tank

Claims (1)

[Claims] 1. A main body of a management work machine is attached to a rear part of a traveling machine body through a work machine mounting device, and a work body having an inclined center attached to a rear part of the main body of the management work machine is rotatable via a rolling shaft. A horizontal control device for a management work machine, which is provided with an actuator for correcting a lateral inclination at a position distant from the rolling axis, and is configured to keep the work body horizontal.