Hydraulic agricultural chassis with adjustable height

Abstract

The height-adjustable hydraulic agricultural chassis comprises a chassis body, an engine is fixedly connected to the front side of the upper end of the chassis body, a hydraulic pump is fixedly connected to the rear side of the upper end of the chassis body, fixing frames are fixedly connected to the four corners of the chassis body correspondingly, and driving assemblies are arranged at the bottom ends of the fixing frames correspondingly. The height of the chassis body is adjusted through the four hydraulic cylinders, each hydraulic cylinder adjusts one walking wheel, the telescopic amount of the hydraulic cylinder is adjusted, the levelness of the chassis body can be adjusted, each hydraulic cylinder is controlled through one reversing valve, and the four hydraulic motors provide advancing power and are connected with the speed reducer to reduce the speed. The flow pressure of each hydraulic motor is controlled by one reversing valve, the arranged hydraulic shock absorber can play a role in buffering and shock absorption, the steering angle of the driving assembly can be adjusted through the arranged steering assembly, and steering, turning around and transverse movement in a narrow space can be achieved conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a hydraulic agricultural chassis with adjustable height. Background Art

[0002] With the development of intelligent agricultural machinery technology, the application scenarios of agricultural machinery chassis have become more diversified, and the requirements for chassis in complex working environments have become more and more diverse.

[0003] In order to meet the operating height requirements of different crops or the same crop at different times, the agricultural machinery chassis needs to have a ground clearance adjustment device without affecting the functions of other systems of the chassis. At the same time, due to the severe bumps of the agricultural machinery chassis caused by the harsh working conditions, it also needs a good vibration reduction device, which can not only improve the driver's riding comfort, but also ensure the working stability of the agricultural machinery. In the field, in some narrow areas, agricultural machinery is difficult to turn around and turn, so a more flexible steering structure is needed. In order to overcome these disadvantages, the present invention provides a hydraulic agricultural chassis with adjustable height. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a hydraulic agricultural chassis with adjustable height.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a hydraulic agricultural chassis with adjustable height, including a chassis body, an engine fixedly connected to the front side of the upper end of the chassis body, a hydraulic pump fixedly connected to the rear side of the upper end of the chassis body, fixed frames fixedly connected to the four corners of the chassis body, a driving assembly is arranged at the bottom of the fixed frame, a support plate is fixedly connected between the left and right adjacent fixed frames, a steering assembly for driving the driving assembly to rotate is arranged at the upper end of the support plate, a hydraulic oil tank and a fuel tank are fixedly connected to the two sides of the bottom end of the chassis body respectively, and a battery is fixedly connected to the middle position of the bottom end of the chassis body.

[0006] Furthermore, a generator is provided on one side of the engine, and the generator is electrically connected to the battery.

[0007] Furthermore, the driving assembly includes a first support frame, a first fixing seat is fixedly connected to the upper end of the first support frame, a second support frame is rotatably connected to one side of the first support frame, and a second fixing seat is fixedly connected to the upper end of the second support frame.

[0008] Furthermore, a hydraulic shock absorber is arranged between the first fixed seat and the second fixed seat, and the first connecting block and the second connecting block are fixedly connected to both ends of the hydraulic shock absorber respectively, the first connecting block is rotatably connected to the first fixed seat, and the second connecting block is rotatably connected to the second fixed seat.

[0009] Furthermore, a support block is fixedly connected to the middle position of one side of the first support frame, a hydraulic cylinder is fixedly connected to the upper end of the support block, a mounting seat is fixedly connected to the upper end of the hydraulic cylinder, a connecting shaft is fixedly connected to the upper end of the mounting seat, the connecting shaft is rotatably connected to the fixed frame, and a worm gear is fixedly connected to the upper end of the connecting shaft.

[0010] Furthermore, both ends of one side of the first support frame are fixedly connected to the fourth fixing seat, both ends of the mounting seat are fixedly connected to the third fixing seat, and a telescopic rod is arranged between the corresponding third fixing seat and the fourth fixing seat, and both ends of the telescopic rod are rotatably connected to the corresponding third fixing seat and fourth fixing seat respectively.

[0011] Furthermore, a reducer is fixedly connected to one side of the first support frame, a hydraulic motor is fixedly connected to one side of the reducer, an output end of the hydraulic motor is fixedly connected to an input end of the reducer, a fixed plate is fixedly connected to the outer side of the first support frame, a brake disc is fixedly connected to the output end of the reducer through the first support frame and the fixed plate, a hydraulic piston brake is fixedly connected to the fixed plate, a mounting plate is fixedly connected to the outer side of the brake disc, and a walking wheel is bolted to the mounting plate.

[0012] Furthermore, the steering assembly includes a dual-axis motor fixedly connected to the support plate, both ends of the dual-axis motor output end are fixedly connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a worm, and the worm is meshingly connected to the corresponding worm wheel.

[0013] Beneficial effects of the present invention:

[0014] The height-adjustable hydraulic agricultural chassis uses four hydraulic cylinders to adjust the height of the chassis body. Each hydraulic cylinder adjusts a walking wheel. The horizontality of the chassis body can be adjusted by adjusting the extension and contraction amount of the hydraulic cylinder. Each hydraulic cylinder is controlled by a reversing valve. Four hydraulic motors provide forward power and are connected to a reducer to reduce the speed. The flow pressure of each hydraulic motor is controlled by a reversing valve. The hydraulic shock absorber can play a role in buffering and shock absorption. The steering angle of the drive assembly can be adjusted through the steering assembly, which is convenient for steering, turning and lateral movement in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 : A front view of the present invention;

[0017] Figure 2 : A schematic diagram of the structure of the steering assembly of the present invention;

[0018] Figure 3 : A schematic diagram of the bottom structure of the chassis body of the present invention;

[0019] Figure 4 : A schematic diagram of the structure of the drive assembly of the present invention;

[0020] Figure 5 : Schematic diagram of the drive assembly structure of the present invention.

[0021] Figure 6 : A schematic diagram of the structure of the drive assembly of the present invention;

[0022] Figure 7 : Schematic diagram of the steering and U-turn structure of the driving assembly of the present invention;

[0023] Figure 8 : Schematic diagram of the steering and lateral movement structure of the drive assembly of the present invention.

[0024] The reference numerals are as follows:

[0025] 1. Chassis body; 2. Engine; 3. Hydraulic pump; 4. Fixed frame; 5. Support plate; 6. Steering assembly; 7. Drive assembly; 8. Dual-axis motor; 9. Rotating shaft; 10. Worm; 11. Hydraulic oil tank; 12. Fuel tank; 13. Battery; 14. First support frame; 15. First fixed seat; 16. First connecting block; 17. Hydraulic shock absorber; 18. Second connecting block; 19. Second support frame; 20. Second fixed seat; 21. Travel wheel; 22. Support block; 23. Hydraulic cylinder; 24. Mounting seat; 25. Connecting shaft; 26. Worm gear; 27. Third fixed seat; 28. Fourth fixed seat; 29. ​​Telescopic rod; 30. Reducer; 31. Hydraulic motor; 32. Fixed plate; 33. Hydraulic piston brake; 34. Brake disc; 35. Mounting plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-8 As shown, the present invention has the following specific embodiments.

[0028] Example 1

[0029] A height-adjustable hydraulic agricultural chassis comprises a chassis body 1, an engine 2 is fixedly connected to the front side of the upper end of the chassis body 1, a hydraulic pump 3 is fixedly connected to the rear side of the upper end of the chassis body 1, a fixing frame 4 is fixedly connected to the four corners of the chassis body 1, a driving assembly 7 is arranged at the bottom of the fixing frame 4, a support plate 5 is fixedly connected between the fixing frames 4 adjacent to the left and right, a steering assembly 6 for driving the driving assembly 7 to rotate is arranged at the upper end of the support plate 5, a hydraulic oil tank 11 and a fuel tank 12 are fixedly connected to the two sides of the bottom end of the chassis body 1, radiators are arranged on the hydraulic oil tank 11 and the fuel tank 12, and a battery 13 is fixedly connected to the middle position of the bottom end of the chassis body 1;

[0030] A driving position and an operation box may be provided on the chassis body 1 , and the forward movement, backward movement and steering of the chassis body 1 may be controlled by manually operating the operation box.

[0031] In this embodiment, the engine 2 is connected to a hydraulic pump, which can provide the necessary power for the hydraulic system. The battery 13 can provide power for the steering assembly 6. The drive assembly 7 can drive the device to move, and the drive assembly 7 can be height-adjustable, which is convenient for adjusting the height of the chassis body 1. The steering assembly 6 can adjust the steering angle of the drive assembly 7, which is convenient for steering, turning around and lateral movement in a narrow space.

[0032] Example 2

[0033] A generator is provided on one side of the engine 2 , and the generator is electrically connected to the battery 13 .

[0034] In this embodiment, the engine 2 drives the generator to generate electricity, and the electrical energy can be stored in the battery 13.

[0035] Example 3

[0036] The driving assembly 7 includes a first support frame 14, a first fixed seat 15 is fixedly connected to the upper end of the first support frame 14, a second support frame 19 is rotatably connected to one side of the first support frame 14, a second fixed seat 20 is fixedly connected to the upper end of the second support frame 19, a hydraulic shock absorber 17 is arranged between the first fixed seat 15 and the second fixed seat 20, a first connecting block 16 and a second connecting block 18 are fixedly connected to both ends of the hydraulic shock absorber 17, the first connecting block 16 is rotatably connected to the first fixed seat 15, and the second connecting block 18 is rotatably connected to the second fixed seat 20, a support block 22 is fixedly connected to the middle position of one side of the first support frame 14, a hydraulic cylinder 23 is fixedly connected to the upper end of the support block 22, a mounting seat 24 is fixedly connected to the upper end of the mounting seat 24, a connecting shaft 25 is fixedly connected to the upper end of the mounting seat 24, the connecting shaft 25 is rotatably connected to the fixed frame 4, and the upper end of the connecting shaft 25 is fixedly connected There is a worm gear 26, and both ends of one side of the first support frame 14 are fixedly connected to the fourth fixed seat 28, and both ends of the mounting seat 24 are fixedly connected to the third fixed seat 27, and a telescopic rod 29 is arranged between the corresponding third fixed seat 27 and the fourth fixed seat 28, and both ends of the telescopic rod 29 are rotatably connected to the corresponding third fixed seat 27 and the fourth fixed seat 28 respectively. A reducer 30 is fixedly connected to one side of the first support frame 14, and a hydraulic motor 31 is fixedly connected to one side of the reducer 30. The output end of the hydraulic motor 31 is fixedly connected to the input end of the reducer 30, and a fixed disk 32 is fixedly connected to the outside of the first support frame 14. The output end of the reducer 30 passes through the first support frame 14 and the fixed disk 32 and is fixedly connected to a brake disk 34. A hydraulic piston brake 33 is fixedly connected to the fixed disk 32, and a mounting disk 35 is fixedly connected to the outside of the brake disk 34. The mounting disk 35 is bolted with a walking wheel 21.

[0037] In this embodiment, the hydraulic motor 31 can drive the travel wheel 21 to rotate after being decelerated by the reducer 30. The travel wheel 21 can be braked by the hydraulic piston brake 33 and the brake disc 34. The hydraulic shock absorber 17 can buffer and reduce shock for the chassis body 1. The hydraulic cylinder 23 can be extended and retracted to adjust the height of the chassis body 1, and the telescopic rod 29 can improve the connection strength.

[0038] Example 4

[0039] The steering assembly 6 includes a dual-axis motor 8 fixedly connected to the support plate 5 , both ends of the dual-axis motor 8 are fixedly connected to a rotating shaft 9 , one end of the rotating shaft 9 is fixedly connected to a worm 10 , and the worm 10 is meshingly connected to the corresponding worm wheel 26 .

[0040] In this embodiment, the dual-axis motor 8 drives the rotating shaft 9 to rotate, and through the transmission of the worm 10 and the worm wheel 26, it can drive the driving assembly 7 to rotate around the fixing frame 4 through the connecting shaft 25.

[0041] The overall working principle of the present invention is as follows:

[0042] A driving position and an operating box can be set on the chassis body 1. The forward, backward and steering movements of the chassis body 1 can be controlled by manually operating the operating box. The hydraulic motor 31 can drive the travel wheel 21 to rotate after being decelerated by the reducer 30. The travel wheel 21 can be braked by the hydraulic piston brake 33 and the brake disc 34. The height of the chassis body 1 is adjusted by four hydraulic cylinders 23. Each hydraulic cylinder 23 adjusts a travel wheel 21. The horizontality of the chassis body 1 can be adjusted by adjusting the extension and contraction amount of the hydraulic cylinder 23. Each hydraulic cylinder 23 is controlled by a reversing valve. The dual-axis motor 8 drives the rotating shaft 9 to rotate. After the transmission of the worm 10 and the worm wheel 26, the drive assembly 7 can be driven to rotate around the fixed frame 4 through the connecting shaft 25.

[0043] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A height-adjustable hydraulic agricultural chassis, comprising a chassis body (1), characterized in that: The front side of the upper end of the chassis body (1) is fixedly connected to an engine (2), the rear side of the upper end of the chassis body (1) is fixedly connected to a hydraulic pump (3), the four corners of the chassis body (1) are fixedly connected to fixed frames (4), the bottom ends of the fixed frames (4) are provided with drive components (7), support plates (5) are fixedly connected between the left and right adjacent fixed frames (4), the upper ends of the support plates (5) are provided with a steering component (6) for driving the drive component (7) to rotate, the two sides of the bottom end of the chassis body (1) are respectively fixedly connected to a hydraulic oil tank (11) and a fuel tank (12), and the middle position of the bottom end of the chassis body (1) is fixedly connected to a battery (13).

2. The height-adjustable hydraulic agricultural chassis according to claim 1, characterized in that: A generator is provided on one side of the engine (2), and the generator is electrically connected to the battery (13).

3. The height-adjustable hydraulic agricultural chassis according to claim 2, characterized in that: The driving assembly (7) comprises a first support frame (14), the upper end of the first support frame (14) is fixedly connected to a first fixing seat (15), one side of the first support frame (14) is rotatably connected to a second support frame (19), and the upper end of the second support frame (19) is fixedly connected to a second fixing seat (20).

4. The height-adjustable hydraulic agricultural chassis according to claim 3, characterized in that: A hydraulic shock absorber (17) is arranged between the first fixed seat (15) and the second fixed seat (20); two ends of the hydraulic shock absorber (17) are respectively fixedly connected to a first connecting block (16) and a second connecting block (18); the first connecting block (16) is rotatably connected to the first fixed seat (15), and the second connecting block (18) is rotatably connected to the second fixed seat (20).

5. The height-adjustable hydraulic agricultural chassis according to claim 4, characterized in that: A support block (22) is fixedly connected to a middle position on one side of the first support frame (14); a hydraulic cylinder (23) is fixedly connected to the upper end of the support block (22); a mounting seat (24) is fixedly connected to the upper end of the hydraulic cylinder (23); a connecting shaft (25) is fixedly connected to the upper end of the mounting seat (24); the connecting shaft (25) is rotatably connected to the fixed frame (4); and a worm gear (26) is fixedly connected to the upper end of the connecting shaft (25).

6. The height-adjustable hydraulic agricultural chassis according to claim 5, characterized in that: Both ends of one side of the first support frame (14) are fixedly connected to a fourth fixing seat (28), and both ends of the mounting seat (24) are fixedly connected to a third fixing seat (27), and a telescopic rod (29) is arranged between the corresponding third fixing seat (27) and the fourth fixing seat (28), and both ends of the telescopic rod (29) are rotatably connected to the corresponding third fixing seat (27) and the fourth fixing seat (28) respectively.

7. The height-adjustable hydraulic agricultural chassis according to claim 6, characterized in that: A reducer (30) is fixedly connected to one side of the first support frame (14), a hydraulic motor (31) is fixedly connected to one side of the reducer (30), an output end of the hydraulic motor (31) is fixedly connected to an input end of the reducer (30), a fixed plate (32) is fixedly connected to the outer side of the first support frame (14), a brake plate (34) is fixedly connected to the output end of the reducer (30) through the first support frame (14) and the fixed plate (32), a hydraulic piston brake (33) is fixedly connected to the fixed plate (32), a mounting plate (35) is fixedly connected to the outer side of the brake plate (34), and a travel wheel (21) is bolted to the mounting plate (35).

8. The height-adjustable hydraulic agricultural chassis according to claim 7, characterized in that: The steering assembly (6) comprises a dual-axis motor (8) fixedly connected to the support plate (5), both ends of the output end of the dual-axis motor (8) are fixedly connected to a rotating shaft (9), one end of the rotating shaft (9) is fixedly connected to a worm (10), and the worm (10) is meshingly connected to a corresponding worm wheel (26).

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