An agricultural machinery suspension shock absorption stroke detection device

Abstract

The present invention relates to the technical field of suspension detection. The present invention discloses a shock absorption stroke detection device for an agricultural machinery suspension, which includes a detection table, four groups of ground mode mechanisms, and a lifting mechanism. It also includes a linkage mechanism rotatably installed on one side of the lifting mechanism, and an agricultural machinery suspension mechanism installed on one side of the lifting mechanism through a shaft bolt. The four groups of ground mode mechanisms are respectively fixedly installed inside the slots. The ground mode mechanism is composed of a mounting frame, an inclination adjustment component, a gradient adjustment component, and a ground mode conveyor table. The technical solution of the present invention adjusts the slope and gradient of the ground mode conveyor table through the inclination adjustment component and the gradient adjustment component, so as to simulate different road conditions. According to the changes in the angles and gradients of different roads, the shock absorption performance of the agricultural machinery suspension mechanism under various complex terrains is comprehensively evaluated to ensure that its shock absorption effect reaches the best state, thereby improving the working efficiency and service life of the agricultural machinery, and reducing the maintenance cost and use risk.

Description

Technical Field

[0001] The present invention relates to the technical field of suspension detection, and in particular to a detection device for the shock absorption stroke of an agricultural machinery suspension. Background Art

[0002] During the use of agricultural machinery, the suspension shock absorption device plays a crucial role, which can effectively reduce the vibration of agricultural machinery during driving and improve the operation quality and the safety of operators. However, the existing agricultural machinery suspension shock absorption devices often have problems such as poor shock absorption effect and inaccurate stroke measurement in actual applications. These problems not only affect the operation accuracy of agricultural machinery, but also may increase the maintenance cost and use risk. Therefore, it is crucial to develop a detection device that can accurately detect the stroke of the suspension shock absorption device, which will help to timely discover and adjust the state of the shock absorption device and improve the working efficiency and service life of agricultural machinery.

[0003] In the process of implementing the present invention, the inventor found that there are at least the following problems in the prior art:

[0004] At present, the detection device for the shock absorption stroke of an agricultural machinery suspension lacks the function of detecting under different road condition angle conditions. When the road condition angle conditions change greatly, it is very difficult to comprehensively evaluate the shock absorption performance under different road condition angle conditions. Different road condition angle conditions will have different effects on the contact between the tire and the road surface, thereby affecting the shock absorption stroke of the suspension.

[0005] Therefore, the above technical problems need to be solved. Summary of the Invention

[0006] In order to overcome the deficiencies of the prior art, the present invention provides a detection device for the shock absorption stroke of an agricultural machinery suspension to solve the problem that it lacks the function of detecting under different road condition angle conditions. When the road condition angle conditions change greatly, it is very difficult to comprehensively evaluate the shock absorption performance under different road condition angle conditions. Different road condition angle conditions will have different effects on the contact between the tire and the road surface, thereby affecting the shock absorption stroke of the suspension.

[0007] To solve the above technical problems, the basic technical solution proposed by the present invention is as follows:

[0008] A detection device for the shock absorption stroke of an agricultural machinery suspension includes a detection table, four groups of ground mode mechanisms and a lifting mechanism. It further includes a linkage mechanism rotatably installed on one side of the lifting mechanism, and an agricultural machinery suspension mechanism installed on one side of the lifting mechanism through a shaft bolt. The linkage mechanism and the agricultural machinery suspension mechanism are clamped and connected. The bottom of the lifting mechanism is drivingly installed with a rotating mechanism, and the lifting mechanism is fixedly installed at the center inside the detection table through a turntable. Four slots are equidistantly opened at the top of the detection table;

[0009] The four groups of ground mode mechanisms are respectively fixedly installed inside the slots, and the four groups of ground mode mechanisms are road surfaces with different road conditions, and are used to detect the shock absorption stroke of the agricultural machinery suspension mechanism on different road surfaces;

[0010] The ground mode mechanism consists of a mounting frame, an inclination adjustment component, a slope adjustment component and a ground mode conveying platform, wherein a slide groove is fixedly installed on the inner wall of the mounting frame, and the ground mode conveying platform is installed inside the mounting frame by sliding blocks on both sides cooperating with the slide groove, the slope adjustment component is installed inside the mounting frame through a bearing seat, and the slope adjustment component is transmission-connected to the ground mode conveying platform, the inclination adjustment component is installed on one side of the outer wall of the mounting frame through an axle bolt, the side inclination angle of the mounting frame is adjusted by the inclination adjustment component to realize the adjustment of the detection angle of the ground mode conveying platform, the slope of the ground mode conveying platform is adjusted by the slope adjustment component, and the side inclination angle and slope of the ground mode conveying platform are adjusted to simulate the detection of the side inclination angle and slope of different road surfaces.

[0011] Preferably, the tilt adjustment assembly consists of an active bevel gear, a mounting sleeve, a driven bevel gear, a threaded sleeve, a threaded rod and a first servo motor, wherein the active bevel gear is installed inside the detection platform through a bearing seat, a mounting shaft is fixedly installed on one side of the active bevel gear, and the mounting sleeve is movably sleeved on the outside of the mounting shaft, an encoder is fixedly installed on one end of the mounting shaft, the driven bevel gear is rotatably installed on the top of the mounting sleeve, the active bevel gear is meshed with the driven bevel gear, the threaded rod is fixedly installed on the top of the driven bevel gear, the threaded sleeve is sleeved on the outside of the threaded rod, and the threaded sleeve is movably connected to one side of the mounting frame through a shaft bolt.

[0012] Preferably, the slope adjustment assembly consists of a first worm wheel, a first worm, two second worms and an intermittent worm wheel, wherein the first worm wheel is fixedly mounted on the inside of the detection platform via a bearing seat, the first worm is rotatably mounted on the side wall of the mounting frame, and the first worm wheel is meshingly connected with the first worm, first bevel gears are fixedly mounted on both ends of the first worm wheel via a transmission shaft, two second worms are fixedly mounted on the inside of the detection platform via bearing seats, an encoder is fixedly mounted on one end of one of the second worms, two intermittent worm wheels are meshingly connected to the tops of the two second worms, and the two intermittent worm wheels are respectively fixedly mounted on both sides of the bottom of the ground mode conveying platform, and two second bevel gears are respectively fixedly mounted on the other ends of the two second worms, and the two second bevel gears are meshingly connected to the first bevel gear.

[0013] Preferably, the ground mode conveyor platform consists of a conveyor frame, a ground mode conveyor belt assembly and support rollers. The ground mode conveyor belt assembly rotates inside the conveyor frame, the support rollers are rotatably installed inside the conveyor frame, support shaft seats are rotatably installed at both ends of the support rollers, a pressure sensor is fixedly installed at the bottom of the support shaft seat, and the bottom of the pressure sensor is fixedly installed inside the conveyor frame.

[0014] Preferably, the lifting mechanism is composed of a vertical frame, a lead screw, a lead screw nut, a lifting seat and a second servo motor. The lead screw is rotatably installed inside the vertical frame. The lead screw nut is sleeved outside the lead screw. The lifting seat is movably sleeved outside the lead screw, and the lead screw nut is fixedly connected to the lifting seat. The bottom end of the vertical frame is fixedly connected to the output end of the second servo motor, and the second servo motor is fixedly installed at the bottom of the vertical frame.

[0015] Preferably, the rotating mechanism is composed of a second worm gear, a third worm and a third servo motor. The second worm gear is fixedly installed outside the bottom of the vertical frame. The third worm is meshed with the second worm gear. One end of the third worm is fixedly connected to the output end of the third servo motor, and the third servo motor is fixedly installed inside the inspection table.

[0016] Preferably, the agricultural machinery suspension mechanism is composed of wheels, two support axle frames and shock-absorbing cylinders. The two support axle frames are installed on one side of the wheels through axle bolts. The two support axle frames are movably connected to the lifting seat through axle bolts. The top of one of the support axle frames is movably connected to the bottom of the shock-absorbing cylinder through an axle bolt.

[0017] Preferably, the linkage mechanism is composed of a threaded seat, a screw rod, a clamping disc, a slide rod and a clamping bracket. The screw rod is rotatably installed on the top of the clamping disc. The threaded seat is sleeved outside the screw rod. The threaded seat is movably connected to the lifting seat through an axle bolt. The top end of the slide rod is fixedly installed on one side of the clamping disc. The clamping bracket is movably sleeved outside the slide rod. A laser sensor is embedded on one side of the top of the clamping bracket close to the slide rod.

[0018] Preferably, a controller is fixedly installed outside the inspection table. A partition board is fixedly installed inside the inspection table. The inside of the inspection table is divided into an installation chamber through the cooperation of the partition board and the slot.

[0019] The beneficial effects of the present invention are:

[0020] The technical solution of the present invention precisely simulates the shock absorption performance of agricultural machinery under various road surface conditions through the coordinated work of four groups of ground mode mechanisms, in cooperation with the lifting mechanism, the rotating mechanism and the linkage mechanism. During the detection, first, the inclination and gradient of the ground mode conveyor table are adjusted through the inclination adjustment component and the gradient adjustment component to simulate different road surface conditions. The lifting mechanism gradually loads the agricultural machinery suspension mechanism placed on the ground mode mechanism to different load states to simulate the shock absorption stroke changes under different load conditions. At the same time, the linkage mechanism ensures that the suspension mechanism cooperates with the laser sensor during the shock absorption process to ensure synchronous movement during the suspension shock absorption process, enabling the laser sensor to accurately detect the shock absorption stroke of the suspension mechanism. The detection device can comprehensively evaluate the shock absorption performance of the agricultural machinery suspension mechanism under various complex terrains according to the changes in different road surface angles and gradients, ensure that its shock absorption effect reaches the best state, thereby improving the working efficiency and service life of the agricultural machinery, and reducing the maintenance cost and usage risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure in the present invention;

[0022] Figure 2 is a schematic diagram of the internal structure in the present invention;

[0023] Figure 3 is a schematic diagram of the structure of the detection mechanism in the present invention;

[0024] Figure 4 is a schematic diagram of the internal structure of the detection mechanism in the present invention;

[0025] Figure 5 is a schematic diagram of the internal structure of the inclination adjustment component in the present invention;

[0026] Figure 6 is a schematic diagram of the structure of the gradient adjustment component in the present invention;

[0027] Figure 7 is a schematic diagram of the internal structure of the ground mode conveyor table in the present invention;

[0028] Figure 8 is a schematic diagram of the structure of the support roller in the present invention;

[0029] Figure 9 is a schematic diagram of the internal structure of the lifting mechanism in the present invention;

[0030] Figure 10 is a schematic diagram of the structure of the agricultural machinery suspension mechanism in the present invention;

[0031] Figure 11 is a schematic diagram of the structure of the linkage mechanism in the present invention.

[0032] Description of the reference numerals:

[0033] 1. Detection table; 101. Groove; 2. Ground mode mechanism; 201. Mounting frame; 202. Tilt adjustment component; 2021. Driving bevel gear; 2022. Mounting sleeve; 2023. Driven bevel gear; 2024. Threaded sleeve; 2025. Threaded rod; 2026. First servo motor; 203. Gradient adjustment component; 2031. First worm gear; 2032. First worm; 2033. First bevel gear; 2034. Second bevel gear; 2035. Second worm; 2036. Intermittent worm gear; 204. Ground mode conveyor table; 2041. Conveyor frame; 2042. Ground mode conveyor belt component; 2043. Support roller; 2044. Support shaft seat; 2045. Pressure sensor; 205. Chute; 3. Lifting mechanism; 301. Upright frame; 302. Lead screw; 303. Nut sleeve; 304. Lifting seat; 305. Second servo motor; 4. Linkage mechanism; 401. Threaded seat; 402. Screw; 403. Clamping disc; 404. Slide bar; 405. Clamping bracket; 406. Laser sensor; 5. Agricultural machinery suspension mechanism; 501. Wheel; 502. Support shaft frame; 503. Shock absorption cylinder; 6. Rotating mechanism; 601. Second worm gear; 602. Third worm; 603. Third servo motor. Specific implementation mode

[0034] The following will be combined with the attached Figure 1 to the attached Figure 11 The technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] An agricultural machinery suspension shock absorption stroke detection device includes a detection table 1, four groups of ground mode mechanisms 2 and a lifting mechanism 3, and further includes a linkage mechanism 4 rotatably installed on one side of the lifting mechanism 3, and an agricultural machinery suspension mechanism 5 installed on one side of the lifting mechanism 3 through a shaft bolt. The linkage mechanism 4 is clamped and connected to the agricultural machinery suspension mechanism 5. A rotating mechanism 6 is installed at the bottom of the lifting mechanism 3 through transmission, and the lifting mechanism 3 is fixedly installed at the center of the inside of the detection table 1 through a turntable. Four grooves 101 are equidistantly opened at the top of the detection table 1;

[0036] Among them, the lifting mechanism 3 drives the agricultural machinery suspension mechanism 5 to rotate and adjust the orientation through the rotating mechanism 6, so as to facilitate the replacement of the position of the agricultural machinery suspension mechanism 5 above the four groups of ground mode mechanisms 2 according to the detection requirements of different road surfaces, and drives the agricultural machinery suspension mechanism 5 to move up and down through the lifting mechanism 3, so as to facilitate the adjustment of the pressure of the agricultural machinery suspension mechanism 5 on the ground mode mechanism 2, thereby simulating the change of the shock absorption stroke under different load conditions, and the linkage mechanism 4 cooperates closely with the agricultural machinery suspension mechanism 5 to ensure that the linkage mechanism 4 follows the movement of the agricultural machinery suspension mechanism 5 during the shock absorption process, so as to facilitate the laser sensor 406 to accurately detect the shock absorption stroke of the agricultural machinery suspension mechanism 5;

[0037] Four sets of ground mode mechanisms 2 are respectively fixedly installed inside the slots 101, and the four sets of ground mode mechanisms 2 are road surfaces with different road conditions, and are used to detect the shock absorption stroke of the agricultural machinery suspension mechanism 5 on different road surfaces;

[0038] Among them, the four sets of ground mode mechanisms 2 have four specific road simulation characteristics respectively. The four sets of ground mode mechanisms 2 adjust the ground model according to actual needs to simulate the real working environment; the agricultural machinery suspension mechanism 5 is placed on the ground mode mechanisms 2 with different road characteristics for testing. As the ground mode mechanism 2 simulates the characteristics of different road surfaces, the shock absorption performance of the agricultural machinery suspension mechanism 5 under different road conditions can be accurately evaluated to ensure that it can adapt to a variety of complex terrains;

[0039] The ground mode mechanism 2 is composed of a mounting frame 201, a tilt adjustment component 202, a slope adjustment component 203 and a ground mode conveying platform 204, wherein a slide groove 205 is fixedly installed on the inner wall of the mounting frame 201, and the ground mode conveying platform 204 is installed inside the mounting frame 201 through the sliders on both sides cooperating with the slide groove 205, the slope adjustment component 203 is installed inside the mounting frame 201 through a bearing seat, and the slope adjustment component 203 is connected to the ground mode conveying platform 204 by transmission, and the tilt adjustment component 202 is installed on one side of the outer wall of the mounting frame 201 through an axle bolt, and the side tilt angle of the mounting frame 201 is adjusted by the tilt adjustment component 202 to realize the adjustment of the detection angle of the ground mode conveying platform 204, and the slope of the ground mode conveying platform 204 is adjusted by the slope adjustment component 203. By adjusting the side tilt angle and slope of the ground mode conveying platform 204, the side tilt angle and slope of different road surfaces can be simulated.

[0040] Among them, one side of the bottom of the mounting frame 201 is fixedly installed inside the detection platform 1 through a bearing seat. When the mounting frame 201 is adjusted in angle, it is turned around the bearing seat; the slide groove 205 fixedly installed on the inner wall of the mounting frame 201 is movably installed in cooperation with the sliders on both sides of the ground mode conveying platform 204, so that the ground mode conveying platform 204 can be translated inside the mounting frame 201; the slope adjustment component 203 is installed inside the mounting frame 201 through the bearing seat and is transmission-connected to the ground mode conveying platform 204, so that the slope of the ground mode conveying platform 204 can be adjusted; and the tilt adjustment component 202 is installed through the bearing seat. The through-axle bolt is installed on one side of the outer wall of the mounting frame 201, and can adjust the lateral tilt angle of the mounting frame 201, thereby indirectly adjusting the detection angle of the ground mode conveyor platform 204; the working principle is: first, the lateral tilt angle of the mounting frame 201 and the ground mode conveyor platform 204 is adjusted through the tilt adjustment component 202 to simulate different road slopes, and then the slope of the ground mode conveyor platform 204 is adjusted through the slope adjustment component 203 to simulate the complex slope changes of different road surfaces, thereby achieving the purpose of comprehensively testing the performance of the vehicle under different road conditions and realizing a comprehensive and realistic ground simulation detection effect.

[0041] like Figures 3 to 5 As shown, the tilt adjustment component 202 is composed of an active bevel gear 2021, a mounting sleeve 2022, a driven bevel gear 2023, a threaded sleeve 2024, a threaded rod 2025 and a first servo motor 2026, wherein the active bevel gear 2021 is installed inside the detection platform 1 through a bearing seat, a mounting shaft is fixedly installed on one side of the active bevel gear 2021, and the mounting sleeve 2022 is movably sleeved on the outside of the mounting shaft, an encoder is fixedly installed on one end of the mounting shaft, the driven bevel gear 2023 is rotatably installed on the top of the mounting sleeve 2022, the threaded rod 2025 is fixedly installed on the top of the driven bevel gear 2023, the active bevel gear 2021 is meshedly connected with the driven bevel gear 2023, the threaded sleeve 2024 is sleeved on the outside of the threaded rod 2025, and the threaded sleeve 2024 is movably connected to one side of the mounting frame 201 through a shaft bolt;

[0042] Among them, the tilt adjustment component 202 realizes the automatic tilt adjustment of the mounting bracket 201 through the cooperation of the driving bevel gear 2021, the mounting sleeve 2022, the driven bevel gear 2023, the threaded sleeve 2024, the threaded rod 2025 and the first servo motor 2026. Specifically, when the first servo motor 2026 is started, it drives the driving bevel gear 2021 to rotate. The driving bevel gear 2021 drives the driven bevel gear 2023 to rotate through meshing with the driven bevel gear 2023. The threaded rod 2025 at the top of the driven bevel gear 2023 rotates accordingly, causing the threaded sleeve 2024 to move up and down along the threaded rod 2025. Since the threaded sleeve 2024 is movably connected to one side of the mounting bracket 201 through a shaft bolt, the movement of the threaded sleeve 2024 will drive the mounting bracket 201 to tilt relative to the detection table 1. The encoder is used to monitor and feedback the rotation angle of the driven bevel gear 2023 in real time, so as to achieve precise control of the tilt angle.

[0043] As Figure 6 shown, the slope adjustment component 203 consists of a first worm gear 2031, a first worm 2032, two second worms 2035 and an intermittent worm gear 2036. Among them, the first worm gear 2031 is fixedly installed inside the detection table 1 through a bearing seat. The first worm 2032 is rotatably installed on the side wall of the mounting bracket 201, and the first worm gear 2031 is meshed and connected with the first worm 2032. The two ends of the first worm gear 2031 are fixedly installed with first bevel gears 2033 through transmission shafts. The two second worms 2035 are fixedly installed inside the detection table 1 through bearing seats. One end of one of the second worms 2035 is fixedly installed with an encoder. The tops of the two second worms 2035 are respectively meshed and connected with two intermittent worm gears 2036, and the two intermittent worm gears 2036 are respectively fixedly installed on both sides of the bottom of the ground mode conveyor table 204. The other ends of the two second worms 2035 are respectively fixedly installed with two second bevel gears 2034, and the two second bevel gears 2034 are meshed and connected with the first bevel gear 2033.

[0044] Among them, the spiral directions of the two second worm gears 2035 are opposite. Therefore, when the first bevel gear 2033 meshes with and drives the two second bevel gears 2034, the two second worm gears 2035 with opposite spiral directions rotate in opposite directions and cooperate with the intermittent worm wheel 2036 to drive the ground mode conveyor table 204 to tilt and rotate; the slope adjustment assembly 203 realizes precise transmission through the meshing connection between the first worm wheel 2031 and the first worm gear 2032. The first bevel gears 2033 at both ends of the first worm wheel 2031 mesh with the two second bevel gears 2034, and the two second bevel gears 2034 are respectively fixedly connected to the two second worm gears 2035. These two second worm gears 2035 are further fixed in the detection table 1 through bearing seats. An encoder is installed at one end of one of the second worm gears 2035 to monitor its rotation angle in real time. Through the fixed installation of the intermittent worm wheel 2036 at the top of the two second worm gears 2035 and both sides of the bottom of the ground mode conveyor table 204, the tilt angle of the ground mode conveyor table 204 can be precisely adjusted when the second worm gear 2035 rotates, so as to adapt the facial massager to different tilt angles. At the same time, due to the adoption of the worm and worm wheel mechanism, not only the transmitted torque is large, but also the self-locking function can be achieved to ensure that the fixed angle is maintained after adjustment; specifically, first, rotate the first worm gear 2032 to drive the first worm wheel 2031 to rotate. Rotating the first worm wheel 2031 drives the two first bevel gears 2033 to rotate synchronously. Then, through the meshing of the first bevel gear 2033 and the second bevel gear 2034, the two rotating first bevel gears 2033 respectively drive the two second worm gears 2035 to rotate in opposite directions at the same time. Finally, the intermittent worm wheel 2036 at the top of the second worm gear 2035 drives the ground mode conveyor table 204 to tilt and rotate to achieve the purpose of adjusting the tilt angle, and the encoder monitors and feeds back the rotation angle of the second worm gear 2035 in real time to ensure the adjustment accuracy.

[0045] As Figures 7 to 8 shown, the ground mode conveyor table 204 is composed of a conveyor frame 2041, a ground mode conveyor belt assembly 2042 and support rollers 2043. The ground mode conveyor belt assembly 2042 rotates inside the conveyor frame 2041. The support rollers 2043 are rotatably installed inside the conveyor frame 2041. Support shaft seats 2044 are rotatably installed at both ends of the support rollers 2043. A pressure sensor 2045 is fixedly installed at the bottom of the support shaft seat 2044. The bottom of the pressure sensor 2045 is fixedly installed inside the conveyor frame 2041;

[0046] Among them, the working principle of the ground mode conveyor platform 204 is to drive the rotation of the wheels 501 in the agricultural machinery suspension mechanism 5 through the rotation of the ground mode conveyor belt assembly 2042, simulating the detection of the agricultural machinery suspension mechanism 5 under different road conditions. Among them, the support roller 2043 is connected to the conveyor frame 2041 through the support shaft seat 2044, and a pressure sensor 2045 is fixedly installed at the bottom of the support shaft seat 2044. The pressure sensor 2045 can monitor the pressure change borne by the support roller 2043 in real time. This pressure change directly reflects the weight distribution of the items on the ground mode conveyor belt assembly 2042, so as to be used to accurately control the load of the agricultural machinery suspension mechanism 5.

[0047] As Figure 9 shown, the lifting mechanism 3 is composed of a vertical frame 301, a lead screw 302, a lead screw sleeve 303, a lifting seat 304, and a second servo motor 305. The lead screw 302 is rotatably installed inside the vertical frame 301. The lead screw sleeve 303 is sleeved outside the lead screw 302. The lifting seat 304 is movably sleeved outside the lead screw 302, and the lead screw sleeve 303 is fixedly connected to the lifting seat 304. The bottom end of the vertical frame 301 is fixedly connected to the output end of the second servo motor 305, and the second servo motor 305 is fixedly installed at the bottom of the vertical frame 301;

[0048] Among them, the lifting mechanism 3 drives the lead screw 302 to rotate through the operation of the second servo motor 305. Since the lead screw sleeve 303 is fixedly sleeved outside the lead screw 302 and is fixedly connected to the lifting seat 304, the rotational motion of the lead screw 302 is converted into the linear motion of the lifting seat 304, so that the lifting seat 304 moves up and down along the lead screw 302, driving the overall lifting of the agricultural machinery suspension mechanism 5, achieving the adjustment of the pressure of the agricultural machinery suspension mechanism 5 on the ground mode conveyor platform 204, so as to facilitate the detection of the shock absorption stroke under different load conditions of the ground mode conveyor platform 204.

[0049] As Figure 9 shown, the rotating mechanism 6 is composed of a second worm gear 601, a third worm 602, and a third servo motor 603. Among them, the second worm gear 601 is fixedly installed outside the bottom of the vertical frame 301. The third worm 602 is meshed with the second worm gear 601. One end of the third worm 602 is fixedly connected to the output end of the third servo motor 603, and the third servo motor 603 is fixedly installed inside the test bench 1;

[0050] Among them, the rotating mechanism 6 drives the third worm 602 to rotate through the third servo motor 603. The third worm 602 is meshed with the second worm gear 601 fixed outside the bottom of the vertical frame 301, so that the second worm gear 601 rotates synchronously with the rotation of the third worm 602, and then drives the connected vertical frame 301 to rotate at an angle. The rotating vertical frame 301 drives the agricultural machinery suspension mechanism 5 to adjust its orientation, and then adjusts the agricultural machinery suspension mechanism 5 to perform detection on the ground mode mechanism 2 with different road surface characteristics.

[0051] like Figure 10 As shown, the agricultural machinery suspension mechanism 5 is composed of a wheel 501, two support shaft frames 502 and a shock-absorbing cylinder 503, wherein the two support shaft frames 502 are installed on one side of the wheel 501 through shaft bolts, and the two support shaft frames 502 are movably connected to the lifting seat 304 through shaft bolts, and the top of one of the support shaft frames 502 is movably connected to the bottom of the shock-absorbing cylinder 503 through the shaft bolt;

[0052] Among them, the agricultural machinery suspension mechanism 5 achieves a technical effect of alleviating shaking and vibration during driving through the effective cooperation of the wheel 501, the two support axle frames 502 and the shock-absorbing cylinder 503; specifically, when the machine runs on an uneven ground, the two support axle frames 502 are firmly fixed to one side of the wheel 501 through an axle bolt, and are movably connected to the lifting seat 304 through the same axle bolt, ensuring the flexibility and stability of the overall structure; at the same time, the top of one of the support axle frames 502 is connected to the shock-absorbing cylinder 503 through an axle bolt, so that the entire system can resist the impact generated by the wheel 501 during driving. The shock absorbing cylinder 503 is filled with gas, which will be compressed when subjected to external impact, thereby reducing vibration energy and keeping the machine running smoothly. This design can significantly reduce the vibration of equipment and loads even when traveling on rugged or uneven farmland, thereby improving operating efficiency and stability, and further ensuring the operational safety and service life of the machinery. The linkage mechanism 4 is clamped and installed on the outside of the shock absorbing cylinder 503, and is synchronized with the telescopic movement and swinging of the shock absorbing cylinder 503, so that the laser sensor 406 can accurately detect the shock absorbing stroke of the shock absorbing cylinder 503.

[0053] like Figure 11 As shown, the linkage mechanism 4 consists of a threaded seat 401, a screw rod 402, a clamping plate 403, a slide rod 404 and a clamping bracket 405, wherein the screw rod 402 is rotatably mounted on the top of the clamping plate 403, the threaded seat 401 is sleeved on the outside of the screw rod 402, the threaded seat 401 is movably connected to the lifting seat 304 through an axle bolt, the top of the slide rod 404 is fixedly mounted on one side of the clamping plate 403, the clamping bracket 405 is movably sleeved on the outside of the slide rod 404, and a laser sensor 406 is embedded and installed on the top of the clamping bracket 405 close to the slide rod 404.

[0054] Among them, the laser sensor 406 adopts the VL53L1X model to achieve millimeter-level accuracy. The laser sensor 406 is electrically connected to the controller through a wire, facilitating the transmission of the detected electrical signal to the controller for calculation. By moving the rotating screw 402 inside the threaded seat 401, the clamping disc 403 is driven to move downward to clamp the top of the shock-absorbing cylinder 503, and the laser sensor 406 is fixed outside the shock-absorbing cylinder 503 through the clamping bracket 405. Since the slide bar 404 is movably connected to the clamping bracket 405, when the shock-absorbing cylinder 503 expands and contracts for shock absorption, the slide bar 404 follows the shock-absorbing cylinder 503 to expand and contract. The shock-absorbing stroke of the shock-absorbing cylinder 503 is detected by detecting the moving stroke of the slide bar 404 by the laser sensor 406.

[0055] As Figures 1 to 2 shown, a controller is fixedly installed outside the inspection table 1, and a partition is fixedly installed inside the inspection table 1. The inspection table 1 is divided into an installation chamber by the cooperation of the partition wall and the slot 101;

[0056] Among them, the controller is electrically connected to the pressure sensor 2045 through a wire. The real-time load data of the agricultural machinery suspension mechanism 5 is collected by the pressure sensor 2045 and transmitted to the controller for calculation. The controller adjusts the load parameters according to the detection needs, then uses the accurate laser sensor 406 to capture accurate shock-absorbing stroke data, and finally, through the analysis of the collected data, obtains the shock-absorbing performance of the suspension under different load conditions, thereby helping agricultural machinery manufacturing enterprises and maintenance personnel better understand and optimize the shock-absorbing performance of the suspension system.

[0057] According to the explanations and teachings of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A device for detecting the shock absorption stroke of an agricultural machinery suspension, comprising a detection platform (1), four sets of ground mode mechanisms (2) and a lifting mechanism (3), characterized in that: It also includes a linkage mechanism (4) rotatably mounted on one side of the lifting mechanism (3), and an agricultural machinery suspension mechanism (5) mounted on one side of the lifting mechanism (3) via an axle bolt, wherein the linkage mechanism (4) is clamped and connected to the agricultural machinery suspension mechanism (5), a rotating mechanism (6) is transmission-mounted on the bottom of the lifting mechanism (3), and the lifting mechanism (3) is fixedly mounted on the inner center of the detection platform (1) via a turntable, and four slots (101) are equidistantly formed on the top of the detection platform (1); The four groups of ground mode mechanisms (2) are respectively fixedly mounted inside the slot (101), and the four groups of ground mode mechanisms (2) are road surfaces with different road conditions, and are used to detect the shock absorption stroke of the agricultural machinery suspension mechanism (5) on different road surfaces; The ground mode mechanism (2) is composed of a mounting frame (201), a tilt adjustment component (202), a slope adjustment component (203) and a ground mode conveying platform (204), wherein a slide groove (205) is fixedly installed on the inner wall of the mounting frame (201), the ground mode conveying platform (204) is mounted inside the mounting frame (201) by means of sliders on both sides cooperating with the slide groove (205), the slope adjustment component (203) is mounted inside the mounting frame (201) via a bearing seat, and the slope adjustment component (203) is rotatably connected to the ground mode conveying platform (204). The ground mode conveyor platform (204) is connected to the ground mode conveyor platform (204) by transmission, the tilt adjustment component (202) is installed on one side of the outer wall of the mounting frame (201) through an axle bolt, the side tilt angle of the mounting frame (201) is adjusted by the tilt adjustment component (202), so as to adjust the detection angle of the ground mode conveyor platform (204), and the slope of the ground mode conveyor platform (204) is adjusted by the slope adjustment component (203), and the side tilt angle and slope of different road surfaces are simulated by adjusting the side tilt angle and slope of the ground mode conveyor platform (204).

2. The agricultural machinery suspension damping stroke detection device according to claim 1, characterized in that: The tilt adjustment assembly (202) is composed of an active bevel gear (2021), a mounting sleeve (2022), a driven bevel gear (2023), a threaded sleeve (2024), a threaded rod (2025), and a first servo motor (2026), wherein the active bevel gear (2021) is mounted inside the detection platform (1) via a bearing seat, a mounting shaft is fixedly mounted on one side of the active bevel gear (2021), and the mounting sleeve (2022) is movably sleeved on the outside of the mounting shaft. The driven bevel gear (2023) is rotatably mounted on the top of the mounting sleeve (2022), the driving bevel gear (2021) is meshedly connected with the driven bevel gear (2023), the threaded rod (2025) is fixedly mounted on the top of the driven bevel gear (2023), the threaded sleeve (2024) is sleeved on the outside of the threaded rod (2025), and the threaded sleeve (2024) is movably connected to one side of the mounting frame (201) through a shaft bolt.

3. The agricultural machinery suspension damping stroke detection device according to claim 1, characterized in that: The slope adjustment assembly (203) comprises a first worm wheel (2031), a first worm (2032), two second worms (2035) and an intermittent worm wheel (2036), wherein the first worm wheel (2031) is fixedly mounted inside the detection platform (1) via a bearing seat, the first worm (2032) is rotatably mounted on the side wall of the mounting frame (201), and the first worm wheel (2031) is meshedly connected with the first worm (2032), first bevel gears (2033) are fixedly mounted at both ends of the first worm wheel (2031) via a transmission shaft, and the two second worms (2035) are intermittently mounted on the side wall of the mounting frame (201). 035) is fixedly mounted inside the detection platform (1) through a bearing seat, an encoder is fixedly mounted on one end of one of the second worm gears (2035), two discontinuous worm gears (2036) are respectively meshed and connected at the tops of the two second worm gears (2035), and the two discontinuous worm gears (2036) are respectively fixedly mounted on both sides of the bottom of the ground mode conveyor platform (204), and two second bevel gears (2034) are respectively fixedly mounted on the other ends of the two second worm gears (2035), and the two second bevel gears (2034) are meshed and connected with the first bevel gear (2033).

4. The agricultural machinery suspension damping stroke detection device according to claim 1, characterized in that: The ground mode conveyor platform (204) is composed of a conveyor frame (2041), a ground mode conveyor belt assembly (2042) and a support roller (2043); the ground mode conveyor belt assembly (2042) rotates inside the conveyor frame (2041); the support roller (2043) is rotatably mounted inside the conveyor frame (2041); support shaft seats (2044) are rotatably mounted at both ends of the support roller (2043); a pressure sensor (2045) is fixedly mounted at the bottom of the support shaft seat (2044); and the bottom of the pressure sensor (2045) is fixedly mounted inside the conveyor frame (2041).

5. The agricultural machinery suspension damping stroke detection device according to claim 1, characterized in that: The lifting mechanism (3) is composed of a stand (301), a screw rod (302), a thread sleeve (303), a lifting seat (304) and a second servo motor (305); the screw rod (302) is rotatably mounted inside the stand (301); the thread sleeve (303) is sleeved on the outside of the screw rod (302); the lifting seat (304) is movably sleeved on the outside of the screw rod (302); the thread sleeve (303) and the lifting seat (304) are fixedly connected; the bottom end of the stand (301) is fixedly connected to the output end of the second servo motor (305); and the second servo motor (305) is fixedly mounted on the bottom of the stand (301).

6. The agricultural machinery suspension damping stroke detection device according to claim 5, characterized in that: The rotating mechanism (6) is composed of a second worm gear (601), a third worm (602) and a third servo motor (603), wherein the second worm gear (601) is fixedly mounted on the outside of the bottom of the stand (301), the third worm (602) is meshingly connected with the second worm gear (601), one end of the third worm (602) is fixedly connected to the output end of the third servo motor (603), and the third servo motor (603) is fixedly mounted inside the detection platform (1).

7. The agricultural machinery suspension damping stroke detection device according to claim 1, characterized in that: The agricultural machinery suspension mechanism (5) is composed of a wheel (501), two support axle frames (502) and a shock-absorbing cylinder (503), wherein the two support axle frames (502) are installed on one side of the wheel (501) via an axle bolt, the two support axle frames (502) are movably connected to a lifting seat (304) via the axle bolt, and the top of one of the support axle frames (502) is movably connected to the bottom of the shock-absorbing cylinder (503) via the axle bolt.

8. The agricultural machinery suspension damping stroke detection device according to claim 1, characterized in that: The linkage mechanism (4) comprises a threaded seat (401), a screw rod (402), a clamping plate (403), a sliding rod (404) and a clamping bracket (405), wherein the screw rod (402) is rotatably mounted on the top of the clamping plate (403), the threaded seat (401) is sleeved on the outside of the screw rod (402), the threaded seat (401) is movably connected to the lifting seat (304) via an axle bolt, the top of the sliding rod (404) is fixedly mounted on one side of the clamping plate (403), the clamping bracket (405) is movably sleeved on the outside of the sliding rod (404), and a laser sensor (406) is embedded and mounted on the top of the clamping bracket (405) close to the sliding rod (404).

9. The agricultural machinery suspension damping stroke detection device according to claim 1, characterized in that: A controller is fixedly mounted on the outside of the detection platform (1), and a partition is fixedly mounted on the inside of the detection platform (1), and the inside of the detection platform (1) is divided into an installation room by the cooperation of the partition wall and the slot (101).

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