Light power chassis suspension rack device based on field soil bin and use method

Abstract

The invention relates to the technical field of agricultural mechanical equipment, and discloses a light power chassis suspension rack device based on a field soil bin and a using method of the light power chassis suspension rack device based on the field soil bin. The light power chassis suspension rack device comprises a walking trolley, a walking beam, a testing trolley, a walking track, a hooking device, a suspension rack and a testing system unit. The walking tracks are arranged in parallel, the front side part and the rear side part are movably installed on the walking tracks respectively, the two ends of the walking beam are connected with the front side part and the rear side part respectively, the test trolley is movably installed on the walking beam, the suspension rack is connected with the hanging device through the connecting device, and the hanging device is connected with the test trolley. The test system unit is installed on the suspension rack. According to the invention, modular design is realized, the overall structure is compact, modification and debugging can be carried out according to actual field requirements, mounting and dismounting are convenient, the working state is stable, vibration characteristics and rules can be clearly explored, and various data under real field working conditions can be measured.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery and equipment, and in particular to a light power chassis suspension stand device based on a field soil trough and a use method thereof. Background Art

[0002] Rice is one of the important food crops in my country, with an annual rice planting area of ​​30 million hm2. 2 Therefore, mechanized rice planting has become the mainstream today. The main mechanized rice planting methods in my country are mechanical transplanting and mechanical direct seeding. Both of these mechanized planting methods use light power chassis. At present, light power chassis may slip, get stuck, and tilt during operation. At the same time, driving stability and driving comfort need to be improved. At present, the design and development of domestic light power chassis lack theoretical model calculations, unclear exploration of vibration characteristics and laws, and imperfect structures. These problems have become an important factor in the slow development of key technologies of light power chassis, and also restrict the promotion of domestic rice planting machinery in my country. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above prior art and to provide a light power chassis suspension stand device based on a field soil trough and a method of use.

[0004] The objective of the present invention is achieved through the following technical scheme: a light power chassis suspension test bench device based on a field soil trough comprises a walking trolley, a walking beam, a test trolley, a walking track, a hanging device, a suspension test bench and a test system unit, the walking trolley comprises a front part and a rear part, the walking track is arranged in parallel, the front part and the rear part are respectively installed on the walking track, the two ends of the walking beam are respectively connected to the front part and the rear part, the test trolley is movably installed on the walking beam, the suspension test bench is connected to the hanging device through a connecting device, the hanging device is connected to the test trolley, and the test system unit is respectively installed on the connecting device and the suspension test bench.

[0005] A better choice is that the connecting device includes a hanging rear seat, a front bracket, a slider, a slide rail and a plate ear block, the hanging device is connected to one side of the hanging rear seat, the other side of the hanging rear seat is connected to the front bracket, the slide rail is installed on a side of the front bracket away from the hanging rear seat, the slider is slidably connected to the slide rail, the slider is installed on the suspension bench through the plate ear block, and the test system unit is connected to the plate ear block.

[0006] A better choice, the hanging device includes a test trolley arm, a bow plate, an upper support, a lower support, an upper lifting fork, a hydraulic pump, a connecting seat and a fixed seat, the fixed seat is installed on the test trolley, the test trolley arm is symmetrically installed on the upper end of the fixed seat, the two ends of the bow plate are respectively rotatably connected to the test trolley arm, the bow plate is connected to the upper end of the upper lifting fork, the lower end of the upper lifting fork is respectively rotatably connected to the telescopic end of the hydraulic pump and the lower support, the fixed end of the hydraulic pump and one end of the lower support are both rotatably connected to the lower end of the fixed seat, the other end of the lower support is rotatably connected to the lower end of the connecting seat, the upper end of the connecting seat is rotatably connected to one end of the upper support, the other end of the upper support passes through the upper lifting fork and is rotatably connected to the middle part of the fixed seat, and the connecting seat is connected to the connecting device.

[0007] A more preferred option is that the suspension test bench includes a frame structure and a shock-absorbing wheel structure, the shock-absorbing wheel structure is connected to the connecting device via the frame structure, and both the frame structure and the shock-absorbing wheel structure are connected to the test system unit.

[0008] A better choice, the frame structure includes a main frame tube, a sub-frame tube, a main frame, a sub-frame, a large cantilever, a small cantilever and a rear axle load-bearing bracket, two adjacent main frame tubes are connected by the sub-frame tube to form a main frame, the main frame is connected to the hanging device, the main frame and the sub-frame are both installed on the bottom of the main frame, the two ends of the large cantilever are respectively rotatably connected to the main frame and the rear axle load-bearing bracket, the two ends of the small cantilever are respectively rotatably connected to the sub-frame and the rear axle load-bearing bracket, the rear axle load-bearing bracket and the main frame are both connected to the shock-absorbing wheel structure, and the main frame is connected to the test system unit.

[0009] A better choice, the shock-absorbing wheel structure includes a plate, a shock absorber, a shock absorber seat, a square tube, a bearing seat, a wheel axle and a driven wheel, the driven wheel is connected to one end of the wheel axle, the other end of the wheel axle is rotatably mounted on the bearing seat, the bearing seat is mounted on the lower end of the square tube, the upper end of the square tube is connected to one side of the plate, the other side of the plate is connected to the frame structure, the two ends of the shock absorber are rotatably connected to the square tube and the frame structure through the shock absorber seat respectively, and the bearing seat is connected to the test system unit.

[0010] A better choice is that the test system unit includes a displacement sensor, a displacement sensor signal processing module, a velocity sensor, a velocity sensor signal processing module, an acceleration sensor, an acceleration sensor signal processing module, a vibration sensor, a vibration sensor signal processing module, a triaxial sensor, a triaxial sensor signal processing module and a main control unit, the displacement sensor is connected to the main control unit through the displacement sensor signal processing module, the velocity sensor is connected to the main control unit through the velocity sensor signal processing module, the acceleration sensor is connected to the main control unit through the acceleration sensor signal processing module, the vibration sensor is connected to the main control unit through the vibration sensor signal processing module, the triaxial sensor is connected to the main control unit through the triaxial sensor signal processing module, the displacement sensor is installed on the connecting device, and the velocity sensor, the acceleration sensor, the vibration sensor and the triaxial sensor are all installed on the suspension test bench.

[0011] The method for using the light power chassis suspension stand device based on the field soil trough comprises the following steps: S1. Start the light power chassis suspension test bench device, the traveling trolley travels on the traveling track, the test trolley travels on the traveling beam, the test trolley drives the suspension test bench to travel in the field through the hanging device and the connecting device, and the light power chassis suspension test bench device is a light power chassis suspension test bench device based on the field soil trough; S2. When the suspension platform moves in the field, the speed sensor detects the moving speed of the suspension platform in the field, and converts the moving speed into an electrical signal and feeds it back to the speed sensor signal processing module. The speed sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit; S3, when the suspension frame jumps up and down while walking in the field, the displacement sensor detects the jumping displacement of the suspension frame, and converts the jumping displacement into an electrical signal and feeds it back to the displacement sensor signal processing module, and the displacement sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit; S4, when the suspension platform vibrates while walking in the field, the vibration sensor detects the vibration frequency, vibration amplitude and vibration direction of the suspension platform while walking in the field, and converts the vibration frequency, vibration amplitude and vibration direction into electrical signals and feeds them back to the vibration sensor signal processing module, and the vibration sensor signal processing module converts the electrical signals into digital signals and feeds them back to the main control unit; S5, when the suspension platform deviates while walking in the field, the three-axis sensor detects the deflection angle of the suspension platform while walking in the field, and converts the deflection angle into an electrical signal and feeds it back to the three-axis sensor signal processing module, and the three-axis sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit; S6. When the suspension test bench bounces while walking in the field, the acceleration sensor detects the bouncing acceleration of the suspension test bench and converts the bouncing acceleration into an electrical signal and feeds it back to the acceleration sensor signal processing module. The acceleration sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit.

[0012] The present invention has the following advantages and beneficial effects compared with the prior art: The present invention realizes modular design through a traveling trolley, a traveling beam, a test trolley, a traveling track, a hanging device, a suspension test bench and a test system unit. The overall structure is compact, and can be modified and debugged according to actual field needs. It is easy to install and disassemble, has a stable working state, can clearly explore the vibration characteristics and laws, and can measure various data under real field conditions. It is helpful to solve technical problems such as slipping, getting stuck, and lifting of the light power chassis during operation, and helps to improve driving stability and driving comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a light power chassis suspension stand device based on a field soil trough of the present invention; Figure 2 It is a schematic diagram of a hooking device of a light power chassis suspension stand device based on a field soil trough of the present invention; Figure 3 It is a schematic diagram of a connection device of a light power chassis suspension stand device based on a field soil trough of the present invention; Figure 4 It is a schematic diagram of assembling a connecting device and a suspension stand of a light power chassis suspension stand device based on a field soil trough of the present invention; Figure 5 It is a schematic diagram of assembling a suspension stand of a light power chassis suspension stand device based on a field soil trough of the present invention; Figure 6 It is a schematic diagram of the connection between various sensors and a main control unit of the light power chassis suspension stand device based on the field soil trough of the present invention; The markings of the components in the attached drawings are as follows: 101-traveling trolley; 102-traveling beam; 103-test trolley; 104-traveling track; 105-hook device; 106-suspension trolley; 201-test trolley arm; 202-bow plate; 203-upper support; 204-lower support; 205-upper lifting fork; 206-hydraulic pump; 207-fixing seat; 208-connecting seat; 301-connecting device; 302-hook rear seat; 303-front bracket; 304-sliding block; 305-slide rail; 306-plate ear block; 401-main frame tube; 402-sub-frame tube; 403-main frame; 404 -sub-frame; 405-large cantilever; 406-small cantilever; 407-rear axle load-bearing bracket; 501-plate; 502-shock absorber; 503-shock absorber seat; 504-square tube; 505-bearing seat; 506-wheel axle; 507-driven wheel. DETAILED DESCRIPTION

[0014] The purpose of the present invention is further described in detail below with reference to the accompanying drawings and specific examples. The examples cannot be described one by one here, but the implementation methods of the present invention are not therefore limited to the following examples.

[0015] like Figure 1 As shown, the light power chassis suspension bench 106 device based on the field soil trough includes a walking trolley 101, a walking beam 102, a test trolley 103, two walking rails 104, a hook device 105, a suspension bench 106 and a test system unit, and the walking trolley 101 includes a front part and a rear part. The two walking rails 104 are arranged in parallel, the front part of the walking trolley 101 is installed on one walking rail 104, and the rear part of the walking trolley 101 is installed on the other walking rail 104. The walking trolley 101 can move left and right on the two walking rails 104. The two ends of the walking beam 102 are connected to the front part and the rear part of the walking trolley 101 respectively. The test trolley 103 is installed on the walking beam 102 so as to be movable forward and backward. The suspension bench 106 is connected to the hanging device 105 via the connecting device 301 , the hanging device 105 is connected to the test trolley 103 , and the test system unit is installed on the suspension bench 106 .

[0016] The traveling trolley 101 is used to drive the suspension test bench 106 to move left and right on the traveling track 104; the traveling beam 102 is used to guide the traveling of the test trolley 103 and to carry the test trolley 103; the test trolley 103 is used to drive the suspension test bench 106 to move forward and backward on the traveling beam 102; the traveling track 104 is used to provide guidance for the left and right movement of the traveling trolley 101; the hooking device 105 is used to actively adjust the height position of the connecting device 301; the connecting device 301 is used to allow the hooking device 105 to be slidably connected to the suspension test bench 106, and the suspension test bench 106 will not be affected when the hooking device 105 adjusts its height. The suspension test bench 106 is used to install the test system unit to simulate the driving stability and ride comfort of agricultural machinery under different working conditions; the test system unit is used to collect the motion data of the suspension test bench 106.

[0017] like Figure 2 As shown, the hooking device 105 includes two test trolley arms 201, a bow plate 202, an upper support 203, two lower supports 204, an upper lifting fork 205, a hydraulic pump 206, a connecting seat 208 and a fixing seat 207. The fixing seat 207 is installed on the side of the test trolley 103, the two test trolley arms 201 are symmetrically installed on the upper end of the fixing seat 207, and the two ends of the bow plate 202 are respectively rotatably connected to the two test trolley arms 201. The middle part of the bow plate 202 is connected to the upper end of the upper lifting fork 205, and the lower end of the upper lifting fork 205 is respectively rotatably connected to the telescopic end of the hydraulic pump 206 and the lower support 204. The fixed end of the hydraulic pump 206 is rotatably connected to the middle part of the lower end of the fixing seat 207. One end of the two lower supports 204 is rotatably connected to both sides of the lower end of the fixing seat 207, and the other ends of the two lower supports 204 are rotatably connected to both sides of the lower end of the connecting seat 208. The upper end of the connecting seat 208 is rotatably connected to one end of the upper support 203, and the other end of the upper support 203 passes through the upper fork 205 and is rotatably connected to the middle of the fixing seat 207. The connecting seat 208 is connected to the hanging rear seat 302 of the connecting device 301.

[0018] When working, the traveling trolley 101 moves left and right on the traveling track 104, and the test trolley 103 moves forward and backward on the traveling beam 102. If the test trolley 103 and the traveling trolley 101 move at the same time, the test trolley 103 moves in two-dimensional coordinates in the field, and at the same time, the hanging device 105 fixed on the test trolley 103 can move in two-dimensional coordinates with the test trolley 103; the hydraulic pressure of the hydraulic pump 206 in the hanging device 105 can be adjusted to control the lifting height of the upper lifting fork 205 and the upper support 203 and the lower support 204, and finally control the lifting height of the connecting seat 208.

[0019] like Figure 3As shown, the connecting device 301 includes a rear mounting seat 302, a front bracket 303, four sliders 304, two slide rails 305 and two plate ear blocks 306. The connecting seat 208 of the mounting device 105 is connected to one side of the rear mounting seat 302, and the other side of the rear mounting seat 302 is connected to the front side of the front bracket 303. The two slide rails 305 are installed on the side of the front bracket 303 away from the rear mounting seat 302, that is, the two slide rails 305 are symmetrically installed on the back side of the front bracket 303. The two slide rails 305 are slidably connected to the four sliders 304, that is, each slide rail 305 is slidably connected to the two sliders 304. The front side of each plate ear block 306 is connected to the two sliders 304, and the two plate ear blocks 306 are installed on the auxiliary frame pipe 402 of the suspension stand 106 and welded.

[0020] like Figure 4 and 5As shown, the suspension stand 106 includes a frame structure and a shock-absorbing wheel structure, and the shock-absorbing wheel structure is connected to two plate lugs 306 of the connecting device 301 through the frame structure. The frame structure includes two main frame tubes 401, two auxiliary frame tubes 402, a main frame 403, a auxiliary frame 404, two large cantilevers 405, two small cantilevers 406 and a rear axle load-bearing bracket 407. The shock-absorbing wheel structure includes a plate 501, two shock absorbers 502, four shock absorber seats 503, two square tubes 504, two bearing seats 505, two wheel axles 506 and two driven wheels 507. The two ends of the two main frame tubes 401 are connected to form a main frame through two auxiliary frame tubes 402. The main frame (i.e., an auxiliary frame tube 402) is welded to the two plate lugs 306 of the hanging device 105. The main frame 403 is installed at the front end of the bottom of the main frame, and the sub-frame 404 is installed at the rear end of the bottom of the main frame. One end of the two large cantilevers 405 is rotatably connected to the two ends of the main frame 403, and the other ends of the two large cantilevers 405 are rotatably connected to the two sides of the lower end of the front of the rear axle load-bearing bracket 407. One end of the two small cantilevers 406 is rotatably connected to the two ends of the sub-frame 404, and the other ends of the two small cantilevers 406 are rotatably connected to the two sides of the upper end of the front of the rear axle load-bearing bracket 407. The back of the rear axle load-bearing bracket 407 is connected to the front of the plate 501, and the back of the plate 501 is welded to the two square tubes 504, and the two square tubes 504 are parallel to each other. Two shock absorber seats 503 are installed at the bottom of the rear end of the two main frame tubes 401 of the main frame. The upper ends of the two shock absorbers 502 are rotatably connected to the two shock absorber seats 503 through a latch, and the lower ends of the two shock absorbers 502 are rotatably connected to the other two shock absorber seats 503 through a latch, and the two shock absorber seats 503 are fixedly connected to the two square tubes 504 through bolts. The lower ends of the two square tubes 504 are respectively connected to the two bearing seats 505, and one end of the two wheel axles 506 is respectively installed on the two bearing seats 505, and the two wheel axles 506 rotate relative to the two bearing seats 505. The other ends of the two wheel axles 506 are respectively connected to the two driven wheels 507.

[0021] The plate ear block 306 of the connecting device 301 is fixedly connected to the subframe of the suspension platform 106, and the rear mounting seat 302 of the connecting device 301 is connected to the connecting seat 208 of the mounting device 105. When the light power chassis suspension platform 106 based on the field soil trough is installed to work in the field, the suspension platform 106 will cause the driven wheel 507 to bounce due to the excitation of the field road surface. The bouncing caused by the driven wheel 507 will be transmitted to the square tube 504, and then transmitted to the shock absorber 502 by the square tube 504. The shock absorber 502 reduces the shock of the driven wheel 507; however, the suspension platform 106 will still bounce, that is, the suspension platform 106 also slides up and down relative to the connecting device 301.

[0022] like Figure 6As shown, the test system unit includes a displacement sensor, a displacement sensor signal processing module, a velocity sensor, a velocity sensor signal processing module, an acceleration sensor, an acceleration sensor signal processing module, a vibration sensor, a vibration sensor signal processing module, a triaxial sensor, a triaxial sensor signal processing module and a main control unit. The displacement sensor is connected to the main control unit through the displacement sensor signal processing module. The velocity sensor is connected to the main control unit through the velocity sensor signal processing module. The acceleration sensor is connected to the main control unit through the acceleration sensor signal processing module. The vibration sensor is connected to the main control unit through the vibration sensor signal processing module. The triaxial sensor is connected to the main control unit through the triaxial sensor signal processing module. The displacement sensor is mounted on the plate ear block 306 of the connecting device 301. The velocity sensor is mounted on the main frame tube 401 of the suspension test bench 106. The acceleration sensor is mounted on the bearing seat 505 of the suspension test bench 106. The vibration sensor is mounted on the bearing seat 505 of the suspension test bench 106. The triaxial sensor is mounted on the sub-frame tube 402 of the suspension test bench 106.

[0023] The displacement sensor is used to detect the up and down jumping distance of the suspension platform 106. The displacement sensor signal processing module is used to convert the electrical signal of the displacement sensor into a digital signal. The speed sensor is used to detect the moving speed of the suspension platform 106 in the field. The speed sensor signal processing module can be purchased in the existing market and is used to convert the electrical signal of the speed sensor into a digital signal. The acceleration sensor is used to detect the acceleration of the suspension platform 106 jumping. The acceleration sensor signal processing module can be purchased in the existing market and is used to convert the electrical signal of the acceleration sensor into a digital signal. The vibration sensor is used to detect the vibration frequency of the suspension platform 106 when walking. The vibration sensor signal processing module can be purchased in the existing market and is used to convert the electrical signal of the vibration sensor into a digital signal. The triaxial sensor is used to detect the offset angle of the suspension platform 106 when walking. The triaxial sensor signal processing module can be purchased in the existing market and is used to convert the electrical signal of the triaxial sensor into a digital signal. The main control unit is a single-chip microcomputer for processing all digital signals.

[0024] The method for using the light power chassis suspension stand 106 device based on the field soil trough comprises the following steps: S1. Start the light power chassis suspension rig 106 device based on the field soil trough, the traveling trolley 101 walks on the traveling track 104, the test trolley 103 walks on the traveling beam 102, and the test trolley 103 drives the suspension rig 106 to walk in the field through the hanging device 105 and the connecting device 301; S2, when the suspension platform 106 is moving in the field, the speed sensor detects the moving speed of the suspension platform 106 in the field, and converts the moving speed into an electrical signal and feeds it back to the speed sensor signal processing module, and the speed sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit; S3, when the suspension stand 106 jumps up and down while walking in the field, the displacement sensor detects the jumping displacement of the suspension stand 106, and converts the jumping displacement into an electrical signal and feeds it back to the displacement sensor signal processing module, and the displacement sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit; S4, when the suspension stand 106 vibrates while walking in the field, the vibration sensor detects the vibration frequency, vibration amplitude and vibration direction of the suspension stand 106 while walking in the field, and converts the vibration frequency, vibration amplitude and vibration direction into electrical signals and feeds them back to the vibration sensor signal processing module, and the vibration sensor signal processing module converts the electrical signals into digital signals and feeds them back to the main control unit; S5, when the suspension stand 106 deviates while walking in the field, the three-axis sensor detects the deflection angle of the suspension stand 106 while walking in the field, and converts the deflection angle into an electrical signal and feeds it back to the three-axis sensor signal processing module, and the three-axis sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit; S6. When the suspension stand 106 bounces while walking in the field, the acceleration sensor detects the bouncing acceleration of the suspension stand 106 while walking in the field, and converts the bouncing acceleration into an electrical signal and feeds it back to the acceleration sensor signal processing module. The acceleration sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit.

[0025] In summary, this invention provides a research device and method for my country's current agricultural light power chassis suspension. The light power chassis suspension test bench device based on the field soil trough provides real field road excitation and roads with different moisture contents during the experiment. Combined with the suspension test bench and corresponding sensors, it can help researchers better understand the performance characteristics of agricultural light power chassis and suspension systems, predict and evaluate the driving stability and ride comfort of agricultural machinery under different working conditions, and provide an important basis for the performance optimization and improvement of agricultural machinery.

[0026] The above specific implementation modes are preferred embodiments of the present invention and cannot be used to limit the present invention. Any other changes or other equivalent replacement methods that do not deviate from the technical solution of the present invention are included in the protection scope of the present invention.

Claims

1. A light power chassis suspension stand device based on a field soil trough, characterized in that: It includes a walking trolley, a walking beam, a test trolley, a walking track, a hanging device, a suspension test bench and a test system unit. The walking trolley includes a front part and a rear part. The walking track is arranged in parallel. The front part and the rear part are respectively installed on the walking track. The two ends of the walking beam are respectively connected to the front part and the rear part. The test trolley is movably installed on the walking beam. The suspension test bench is connected to the hanging device through a connecting device. The hanging device is connected to the test trolley. The test system unit is respectively installed on the connecting device and the suspension test bench.

2. The light power chassis suspension stand device based on field soil trough according to claim 1 is characterized in that: The connecting device includes a hanging rear seat, a front bracket, a slider, a slide rail and a plate ear block. The hanging device is connected to one side of the hanging rear seat, and the other side of the hanging rear seat is connected to the front bracket. The slide rail is installed on a side of the front bracket away from the hanging rear seat. The slider is slidably connected to the slide rail. The slider is installed on the suspension stand through the plate ear block, and the test system unit is connected to the plate ear block.

3. The light power chassis suspension stand device based on field soil trough according to claim 1 is characterized in that: The hanging device includes a test trolley arm, a bow plate, an upper support, a lower support, an upper lifting fork, a hydraulic pump, a connecting seat and a fixed seat. The fixed seat is installed on the test trolley, and the test trolley arm is symmetrically installed on the upper end of the fixed seat. The two ends of the bow plate are respectively rotatably connected to the test trolley arm, the bow plate is connected to the upper end of the upper lifting fork, and the lower end of the upper lifting fork is respectively rotatably connected to the telescopic end of the hydraulic pump and the lower support. The fixed end of the hydraulic pump and one end of the lower support are both rotatably connected to the lower end of the fixed seat, the other end of the lower support is rotatably connected to the lower end of the connecting seat, the upper end of the connecting seat is rotatably connected to one end of the upper support, the other end of the upper support passes through the upper lifting fork and is rotatably connected to the middle part of the fixed seat, and the connecting seat is connected to the connecting device.

4. The light power chassis suspension stand device based on field soil trough according to claim 1 is characterized in that: The suspension test bench comprises a frame structure and a shock-absorbing wheel structure, the shock-absorbing wheel structure is connected to the connecting device via the frame structure, and both the frame structure and the shock-absorbing wheel structure are connected to the test system unit.

5. The light power chassis suspension stand device based on field soil trough according to claim 4 is characterized in that: The frame structure includes a main frame tube, a sub-frame tube, a main frame, a sub-frame, a large cantilever, a small cantilever and a rear axle load-bearing bracket. Two adjacent main frame tubes are connected by the sub-frame tube to form a main frame. The main frame is connected to the hanging device. The main frame and the sub-frame are both installed at the bottom of the main frame. The two ends of the large cantilever are rotatably connected to the main frame and the rear axle load-bearing bracket respectively. The two ends of the small cantilever are rotatably connected to the sub-frame and the rear axle load-bearing bracket respectively. The rear axle load-bearing bracket and the main frame are both connected to the shock-absorbing wheel structure. The main frame is connected to the test system unit.

6. The light power chassis suspension stand device based on field soil trough according to claim 4 is characterized in that: The shock-absorbing wheel structure includes a plate, a shock absorber, a shock absorber seat, a square tube, a bearing seat, a wheel axle and a driven wheel, the driven wheel is connected to one end of the wheel axle, the other end of the wheel axle is rotatably mounted on the bearing seat, the bearing seat is mounted on the lower end of the square tube, the upper end of the square tube is connected to one side of the plate, the other side of the plate is connected to the frame structure, the two ends of the shock absorber are rotatably connected to the square tube and the frame structure through the shock absorber seat, and the bearing seat is connected to the test system unit.

7. The light power chassis suspension stand device based on field soil trough according to claim 1 is characterized in that: The test system unit includes a displacement sensor, a displacement sensor signal processing module, a velocity sensor, a velocity sensor signal processing module, an acceleration sensor, an acceleration sensor signal processing module, a vibration sensor, a vibration sensor signal processing module, a triaxial sensor, a triaxial sensor signal processing module and a main control unit. The displacement sensor is connected to the main control unit through the displacement sensor signal processing module, the velocity sensor is connected to the main control unit through the velocity sensor signal processing module, the acceleration sensor is connected to the main control unit through the acceleration sensor signal processing module, the vibration sensor is connected to the main control unit through the vibration sensor signal processing module, and the triaxial sensor is connected to the main control unit through the triaxial sensor signal processing module. The displacement sensor is installed on the connecting device, and the velocity sensor, the acceleration sensor, the vibration sensor and the triaxial sensor are all installed on the suspension bench.

8. The method for using the light power chassis suspension stand device based on the field soil trough is characterized by: The following steps are involved: S1. Start the light power chassis suspension test bench device, the traveling trolley travels on the traveling track, the test trolley travels on the traveling beam, the test trolley drives the suspension test bench to travel in the field through the hanging device and the connecting device, and the light power chassis suspension test bench device is any one of claims 1 to 7 of the light power chassis suspension test bench device based on the field soil trough; S2. When the suspension platform moves in the field, the speed sensor detects the moving speed of the suspension platform in the field, and converts the moving speed into an electrical signal and feeds it back to the speed sensor signal processing module. The speed sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit; S3, when the suspension frame jumps up and down while walking in the field, the displacement sensor detects the jumping displacement of the suspension frame, and converts the jumping displacement into an electrical signal and feeds it back to the displacement sensor signal processing module, and the displacement sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit; S4, when the suspension platform vibrates while walking in the field, the vibration sensor detects the vibration frequency, vibration amplitude and vibration direction of the suspension platform while walking in the field, and converts the vibration frequency, vibration amplitude and vibration direction into electrical signals and feeds them back to the vibration sensor signal processing module, and the vibration sensor signal processing module converts the electrical signals into digital signals and feeds them back to the main control unit; S5, when the suspension platform deviates while walking in the field, the three-axis sensor detects the deflection angle of the suspension platform while walking in the field, and converts the deflection angle into an electrical signal and feeds it back to the three-axis sensor signal processing module, and the three-axis sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit; S6. When the suspension test bench bounces while walking in the field, the acceleration sensor detects the bouncing acceleration of the suspension test bench and converts the bouncing acceleration into an electrical signal and feeds it back to the acceleration sensor signal processing module. The acceleration sensor signal processing module converts the electrical signal into a digital signal and feeds it back to the main control unit.

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