JP3166192B2 - Control device for mobile agricultural machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical control device for a spraying section of a control device for a mobile agricultural machine.

[0002]

2. Description of the Related Art A conventional pest control device is mounted on an elevating device shared by various working machines, such as a three-point link for mounting the working machine, which is provided at a front portion of a mobile agricultural machine. In such a conventional machine, when the work machine is attached to the front part, the hood at the front of the mobile farm machine cannot be opened, or when moving a tall work machine up and down, there is no mechanism for lowering the total height, so there is no mechanism for traveling on the road. I was

[0003]

SUMMARY OF THE INVENTION The present invention is to solve such a problem of the conventional device, and has taken the following technical means. That is, the invention according to claim 1 attaches a bonnet 25 covering the periphery of the engine to the front part of the body of the mobile agricultural machine 1 and sets the left and right of the front part of the main frame 2 disposed in the front-rear direction near the upper ends of the front and rear wheels 10 and 11. And a pair of left and right upper swing links 3, 3 and lower swing links 4, 4 projecting forward from the work machine hitch frame 35. A link between the distal ends of the links 3 and 4 is interlocked with a spray unit mounting support frame 5,
A pest control system for a mobile agricultural machine, wherein an upper fulcrum 6 is provided above the sprayer mounting frame 5 and a lower fulcrum 7 is provided at an intermediate portion of the lower swing link 4, and a telescopic device is attached between the upper and lower fulcrums 6, 7. The structure of the machine spray unit vertical adjustment device was adopted. According to the second aspect of the present invention, a central boom frame 27 is attached to the spraying portion mounting support frame 5, and base ends of left and right side boom frames 28 and 29 are provided at respective ends of the central boom frame 27. Is attached to the storage direction from the horizontal direction at 180 degrees to the rear of the aircraft at 90 degrees, and the spray unit mounting support frame 5 is moved from the height "H" to "H2"", And the vertical control device of the spraying part spraying device of the mobile agricultural machine according to claim 1, characterized in that the vertical adjustment is performed.

[0004]

According to the present invention, the following technical effects can be obtained by the above configuration. That is, the invention of claim 1 attaches a bonnet 25 covering the periphery of the engine to the front of the body of the mobile agricultural machine 1 and vertically moves the front and rear of the main frame 2 disposed near the upper ends of the front and rear wheels 10 and 11. The work machine hitch frame 35 is provided.
A pair of left and right upper swing links 3 and 3 and lower swing links 4 and 4 are protruded toward the front of the vehicle 5 and the tip end portions of the upper and lower swing links 3 and 4 are interlocked with the spray unit mounting support frame 5. The upper and lower fulcrum 6 are connected to the upper part of the spray part mounting support frame 5 and the lower fulcrum 7 is provided at the middle part of the lower swing link 4. There is no obstruction between the pair of left and right upper swing links 3 and the lower swing link 4 which can be provided, and the upper and lower swing links 3 and 4 can be easily moved up and down. An upper fulcrum 6 is provided on the upper part of the spraying unit mounting support frame 5 and a lower fulcrum 7 is provided in the middle part of the lower swing link 4.
Since it is attached to the lower fulcrum 7 provided in the middle part, the lower end of the expansion and contraction device does not come into contact with the ground when it is moved down, so that a full cup can be safely relieved.

[0005] Then, the upper end of the expansion and contraction tool is attached to the spray part mounting support frame 5.
Is attached to the upper fulcrum 6 provided integrally on the upper part of the nosepiece, a slight expansion and contraction movement of the telescopic device changes the relative angle between the spray unit mounting support frame 5 and the lower swing link 4, and the spray unit mounting support frame 5 is
It moves up and down with respect to the main frame 2. The upper end of the telescopic device has an upper swing link 3 protruding forward from the mobile agricultural machine body.
Is provided on the spraying portion mounting support frame 5 attached to the front portion of the vehicle, and is farther forward than the bonnet by the protruding length of the upper swing link 3. Also, it does not interfere with opening the hood forward. As described above, since the spraying section mounting support frame 5 can be moved up and down by a single telescopic member, the apparatus is simple and inexpensive.
According to the second aspect of the present invention, a central boom frame 27 is attached to the spraying unit mounting support frame 5, and the right and left side boom frames 28 and 29 have base ends of 180 degrees at each end of the central boom frame 27.
The spraying unit mounting support frame 5 is attached from the height “H” to the height “H2” by being adjustable in the storage direction toward the rear of the aircraft at 90 degrees from the horizontal direction.
When traveling on the road, the left and right side boom frames 28, 29 should be adjusted in the storage direction toward the rear of the aircraft to reduce the width of the aircraft and lower it to the ground side when traveling. This makes it easier to drive in narrow places when driving, or lowers the center of gravity to allow stable driving.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be illustratively described in detail below with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention only to them unless otherwise specified. , Are merely illustrative examples.

In the example shown in the drawings, the present invention is folded into a spraying portion mounting support frame 5 of a control device 9 mounted on a front portion of a mobile agricultural machine 1. The mobile agricultural machine 1 shown in the figure has two main frames 2, 2 on the left and right sides from the front end to the rear end in the front-rear direction of the body, and the front left and right front wheels 10, 10 on the front of the main frame 2 and the rear. Rear wheels 11, 11 are provided.

When viewed from the side, the front and rear wheels 10,
A recess 12 is provided between the left and right main frames 2 and 2, and a central floor surface made of a flat plate on which the driver places his / her foot is provided. Steps 13 and 13 are mounted on a support frame (not shown) projecting from the machine frame. Step 13
The rear part of the vehicle constitutes a fender 14 extending above the rear wheel 11, and the fender 14 serves as a carrier that can withstand a load.

The left and right rear wheels 11, 11 are connected left and right by an axle case 15 which detours upward in a gate shape, and the axle case 15 is attached to the lower surfaces of the left and right main frames 2, 2. At the front part of the axle case 15, bosses for attaching the support shafts 16 and 16 are integrally provided on the left and right, and a lifting link 17 is attached using the support shaft 16 as a pivot.

A lifting link 17 is a hitch 18 that integrally connects the two left and right links and the left and right links at the rear end.
Axle case 1
5 is a link protruding from the front support shaft 16 of the axle case 15 to the rear of the fuselage, bypassing the upper part of the axle case 15, and various work machines are configured to be detachably changeable at the hitch 18 at the protruding end. It is configured to be vertically movable via a hydraulic cylinder (not shown) attached to the rear part of the frames 2 and 2.

The lifting link 17 is fixed to the main frame 2 by a regulating pin 19 so as not to move below a predetermined position, and a lower receiving table 20 attached to the rear of the hitch 18 and a solution tank 21 on the left and right fenders 14, 14. Is placed. An aqueous solution in which a controlling chemical is dissolved in water is stored in the solution tank 21, and the aqueous solution is pressurized by a liquid pump (not shown) provided in the lower receiving stand 20, and attached to the upper right side of the solution tank 21. In addition, the pressure reaches the pressure regulating valve 22 including an opening / closing cock and a pressure tank.

Reference numeral 23 denotes a driver's seat, 24 denotes a steering wheel, and 25 denotes a hood covering an engine (not shown). The solution tank 21 is made of a light resin material such as FRP or ABS resin. The front seat 23 is formed as a concave portion facing backward, and both sides thereof are left and right extending portions extending to near the front edge of the seat 23. . Other materials may be used as long as they are strong and resistant to chemicals.

[0013] Pressure regulating valve 2 mounted on the right extension
High pressure hose 26,2 between
6. . Are linked by The control device comprises a central boom frame 27 and left and right side boom frames 28, 29. During the operation, the side boom frames 28, 29 are spread in the width direction in front of the fuselage. Side boom frames 28 and 29 are folded to the side of the fuselage to reduce the overall width of the fuselage to facilitate traveling.

Each of the boom frames 27, 28, 29 and the high-pressure hose 26 are specially connected.
0,30. . The spraying operation can be performed independently by opening and closing the corresponding parts. Opening / closing cocks 30, 30... Attached to the front end of the pressure regulating valve 22. . High pressure hose 26 extending downward from
26. . Bypasses the side of step 13
It reaches the lower part and is piped along the right main frame 2 to the control device at the front of the fuselage.

In the vicinity of the step 13, a pair of rear couplers 31, 31. . Is provided, and can be separated into a rear high-pressure hose 26a and an intermediate high-pressure hose 26b. When the rear coupler 31 is separated, the rear high-pressure hose 26a can be removed from the body together with the solution tank 21 side.

A drain screw 32, which is an engine lubricating oil discharge port, is located in the vicinity of the main frame 2 below the bonnet 25, and lubricating oil comes into contact with an intermediate high pressure hose 26b located on the side of the main frame 2 during waste oil work. Adverse effects occur.
Reference numeral 33 denotes a protective cover, which is a case using an oil-resistant material such as a long sheet metal material provided with front and rear openings, which prevents lubricating oil from contacting the intermediate high-pressure hose 26b and supports the hose. Do.

A front coupler 34 is provided at the front end of the intermediate high-pressure hose 26b so as to be freely separated from and connected to the front high-pressure hose 26c. FIG. 4 is an enlarged side view of a main part, and FIG.
Are center boom frame 27 and left and right side boom frames 28 and 29
This is a view of the pest control device consisting of the right side and the right side boom frame 29 side, but the left boom 28 is similarly attached to the target position.

The work machine hitch frame 3 is provided at the front of the main frame 2.
5 is detachably attached, and upper swing links 3 and 3 are provided on the upper and left sides of the work machine hitch frame 35, and lower swing links 4 and 4 are provided on the lower end of the hitch frame 35 so as to be vertically swingable.
The spray part mounting support frame 5 is mounted on the free end side. An upper fulcrum 6 is provided on the upper part of the spray unit mounting support frame 5, and an actuator is provided between the lower fulcrum 7 and a lower fulcrum 7 provided at the front and rear intermediate portion of the lower swing link 4 .
Are attached to forming Ru stretching device from the electric cylinder 8 is data.

When the electric cylinder 8 is controlled to expand and contract, the spray unit mounting support frame 5 moves up or down. When the electric cylinder 8 is fully contracted, as shown in FIG.
Is lowered to a low position, and since the upper fulcrum 6 has fully escaped forward, the upper portion of the electric cylinder 8 has also moved forward, and the hood 25 can be opened with the sprayer attached in the direction of arrow A. it can.

A lower mounting bar 36 and a higher mounting bar 37 made of a horizontal round bar are provided on the front surface of the sprayer mounting frame 5.
In the illustrated example, locking claws 39, 39 projecting upward and left from the boom mounting support frame 38 integrally with the lower mounting bar 36 are hooked on the lower mounting bar 36, and are fixed by lock pins 40, 40. ing. A central boom frame 27 having substantially the same width is attached via a plate 41 to a lower portion of the boom attachment support frame 38 along the support frame.

The central boom frame 27 has booms 42, 42. . . . . . Are sprayed on the ground crops in a mist. A protection frame 43 covers the outer periphery of the center boom frame 27 and has wheels 44, 44 attached to the lower end thereof. The wheels 44 do not swing, that is, the lower mounting bar 36 of the spraying unit mounting support frame 5. The boom mounting support frame 38, which has been removed from the vehicle, is a laterally moving wheel that rolls in the lateral direction with the central boom frame 27 and the left and right side boom frames 28, 29 mounted thereon. When you lean almost parallel, you don't slip back and forth.

When removing the boom mounting support frame 38 from the spray unit mounting support frame 5, the intermediate part high pressure hose 26b
At the front end of the front coupler 34, the front high pressure hose 26
One-touch release of part c. Front high pressure hose 26c
Are center boom frame 27 and left and right side boom frames 28 and 29
Piping. Opening and closing support shafts 45 are provided at both ends of the boom mounting support frame 38 (not shown). Opening and closing arms 46 for attaching the base ends of the left and right side boom frames 28 and 29 are attached to the open and close support shaft 45. ing.

An opening / closing electric cylinder 47 is mounted between the tip of the opening / closing arm 46 and the boom mounting support frame 38. When the opening / closing electric cylinder 47 is controlled to expand and contract, the side boom frames 28 or 29 are attached to the boom mounting section. 18 for support frame 38
It operates in the opening direction of the 0-degree direction and the closing direction in which the boom mounting support frame 38 is stored in the 90-degree direction. When controlling the expansion and contraction of the electric cylinder 47 for opening and closing,
The required load (varies depending on the weight of the side boom frames 28 and 29) is most likely to occur when the side boom frames 28 or 29 fully opened in the 180-degree direction are to be moved in the closing direction. Approximately 100 kilograms are required on one side.

Further, in the vicinity of the completion of storage in the 90-degree direction, 1
There is a large difference in load of about 5 kg. Reference numeral 48 denotes a balance spring, which has a free end locked to the distal end of the opening / closing arm 46 and a base end connected to a detachable handle 49 which is a part of a machine frame projecting orthogonally from the boom mounting support frame 38. Stopped.

Due to the balance spring 48, the expansion / contraction control load of the opening / closing electric cylinder 47 has a smaller load fluctuation, that is, a movement as compared with the load broken line "f" without the balance spring 48, as shown by the solid line "F" in the drawing. Since the load direction is reversed halfway, the expansion / contraction control load of the opening / closing electric cylinder 47 can be opened / closed if it has a function of 20 kg. The upper swing links 3, 3 provided on the left and right of the upper part of the work machine hitch frame 35 attached to the front of the main frame 2 and the lower swing links 4, 4 provided on the lower part have upper and lower four-sided links parallel. However, in the illustrated example, the front side of the spray unit mounting support frame 5 is slightly widened.

In the case of parallel, the left and right side boom frames 28, 2
Reference numeral 9 denotes a storage posture, in which only the height changes while maintaining the posture. However, if the boom tip 50 is too high, the overall height of the body will be too high to make driving difficult during storage and movement. Therefore, as shown in FIG. 2, if the link height width on the spray unit mounting support frame 5 side is slightly increased, the spray unit mounting support frame 5 is moved from the intermediate height position “H” to the “H2” position. When the electric cylinder 8 is extended and moved upward, the boom tip 50 is at a low position by "h2", and the storage movement is facilitated.

If the height of the link on the side of the spray unit mounting support frame 5 can be changed and adjusted, good conditions can be adjusted even if the height of the spray is changed according to the height of the crop. Reference numeral 51 denotes an electric switch provided on the side of the handle 24. The electric switch 51 controls the vertical movement of the spray unit mounting support frame 5, and the left and right side boom frames 28 and 29 are used independently. There are provided a total of three open / close switches for opening / closing the open / close electric cylinders 47, 47.

Each of the electric cylinders 8, 47, 47 is electrically connected to a switch 51, and the cylinder is expanded and contracted by the rotation of the motor.

[Brief description of the drawings]

 The figure shows an embodiment of the present invention.

FIG. 1 is an overall side view of a pest control, showing a main part.

FIG. 2 is an overall side view showing a stored state of a boom.

FIG. 3 is a plan view of another main part.

FIG. 4 is a partially enlarged view of a main part.

FIG. 5 is a view taken in the direction of arrow A in FIG. 4;

FIG. 6 is a load load diagram acting on an opening / closing transmission cylinder.

FIG. 7 is a partial side view of another main part in a partial cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Moving agricultural machine 2 Main frame 3 Upper swing link 4 Lower swing link 5 Spray part mounting support frame 6 Upper fulcrum 7 Lower fulcrum 8 Electric cylinder

Claims (2)

(57) [Claims] 1. An engine around the front of a mobile agricultural machine 1
Attaching the hood 25 to cover, the front and rear wheels 10,
11 Front part of the main frame 2 arranged in the front-rear direction near the upper end
The upper and lower swing links 3, 3 and the lower swing links 4, 4 are provided on the work machine hitch frame 35 so as to project forward. The tip end portions of the swing links 3 and 4 are interlocked and connected by a spray unit mounting support frame 5, and an upper fulcrum 6 is provided above the spray unit mounting support frame 5 and a lower fulcrum 7 is provided at an intermediate portion of the lower swing link 4. control device spraying unit vertical adjustment device of the mobile agricultural machine is characterized in that attached the extension Chijimigu between the upper and lower fulcrums 6,7. 2. A central boom frame 27 is provided on the spraying section mounting support frame 5.
The base ends of the left and right side boom frames 28 and 29 are attached to the respective ends of the central boom frame 27 so as to be adjustable in the storage direction from the horizontal direction at 180 degrees to the rear of the fuselage at 90 degrees. 2. The pest control device for a mobile agricultural machine according to claim 1, further comprising adjusting the height of the spray portion mounting support frame 5 from "H" to "H2" by expanding and contracting the telescopic device. Spray unit vertical adjustment device.