Agricultural machine suspension damping stroke detection device

Abstract

The invention relates to the technical field of suspension detection, and discloses an agricultural machine suspension damping stroke detection device which comprises a detection table, four ground mode mechanisms and a lifting mechanism and further comprises a linkage mechanism rotationally installed on one side of the lifting mechanism and an agricultural machine suspension mechanism installed on one side of the lifting mechanism through a shaft bolt. The four ground mode mechanisms are fixedly mounted in the open grooves correspondingly. Each ground mode mechanism is composed of a mounting frame, an inclination adjusting assembly, a gradient adjusting assembly and a ground mode conveying table. According to the technical scheme, the inclination and gradient of the ground mode conveying table are adjusted through the inclination adjusting assembly and the gradient adjusting assembly, so that different road surface conditions are simulated, the damping performance of the agricultural machine suspension mechanism under various complex terrains is comprehensively evaluated according to changes of different road surface angles and gradients, it is ensured that the damping effect of the agricultural machine suspension mechanism reaches the optimal state, and the service life of the agricultural machine suspension mechanism is prolonged. Therefore, the working efficiency and service life of the agricultural machine are improved, and the maintenance cost and use risk are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of suspension detection, in particular to a device for detecting shock-absorbing travel of a suspension of an agricultural machine. Background Art

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

[0003] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art: At present, the shock absorbing stroke detection device of agricultural machinery suspension lacks the function of simulating detection under different road conditions. When the road angle conditions vary greatly, it is difficult to comprehensively evaluate the shock absorbing performance under different road angle conditions. Different road angle conditions will have different effects on the contact between the tire and the road surface, thereby affecting the shock absorbing stroke of the suspension.

[0004] Therefore, the above technical problems need to be solved. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention proposes a shock absorbing stroke detection device for an agricultural machinery suspension to solve the problem of lack of simulation for detection under different road angle conditions. When the road angle conditions vary greatly, it is difficult to comprehensively evaluate the shock absorbing performance under different road angle conditions. Different road angle conditions will have different effects on the contact between the tire and the road surface, thereby affecting the shock absorbing stroke of the suspension.

[0006] In order to solve the above technical problems, the basic technical solution proposed by the present invention is: A shock-absorbing stroke detection device for an agricultural machinery suspension comprises a detection platform, four sets of ground mode mechanisms and a lifting mechanism, and also comprises a linkage mechanism rotatably mounted on one side of the lifting mechanism, and an agricultural machinery suspension mechanism mounted on one side of the lifting mechanism through an axle bolt, and the linkage mechanism is clamped and connected with the agricultural machinery suspension mechanism, a rotating mechanism is installed at the bottom of the lifting mechanism, and the lifting mechanism is fixedly mounted at the inner center of the detection platform through a turntable, and four slots are equidistantly opened on the top of the detection platform; 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; 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.

[0007] 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.

[0008] 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.

[0009] 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.

[0010] Preferably, the lifting mechanism consists of a vertical frame, a screw rod, a wire sleeve, a lifting seat and a second servo motor, the screw rod is rotatably installed inside the vertical frame, the wire sleeve is sleeved on the outside of the screw rod, the lifting seat is movably sleeved on the outside of the screw rod, and the wire sleeve 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 on the bottom of the vertical frame.

[0011] Preferably, the rotating mechanism consists of a second worm gear, a third worm and a third servo motor, wherein the second worm gear is fixedly mounted on the outer side of the bottom of the stand, the third worm gear is meshingly connected to the second worm gear, one end of the third worm gear is fixedly connected to the output end of the third servo motor, and the third servo motor is fixedly mounted inside the testing platform.

[0012] Preferably, the agricultural machinery suspension mechanism consists of wheels, two support axle frames and a shock-absorbing cylinder, wherein the two support axle frames are installed on one side of the wheel through axle bolts, the two support axle frames are movably connected to the lifting seat through axle bolts, and the top of one of the support axle frames is movably connected to the bottom of the shock-absorbing cylinder through axle bolts.

[0013] Preferably, the linkage mechanism consists of a threaded seat, a screw, a clamping disk, a sliding rod and a clamping bracket, wherein the screw is rotatably installed on the top of the clamping disk, the threaded seat is sleeved on the outside of the screw, the threaded seat is movably connected to the lifting seat through an axle bolt, the top of the sliding rod is fixedly installed on one side of the clamping disk, the clamping bracket is movably sleeved on the outside of the sliding rod, and a laser sensor is embedded and installed on the top of the clamping bracket close to the side of the sliding rod.

[0014] Preferably, a controller is fixedly installed on the outside of the detection table, and a partition is fixedly installed inside the detection table, and the inside of the detection table is divided into an installation room by the cooperation of the partition wall and the slot.

[0015] The beneficial effects of the present invention are: The technical solution of the present invention uses four groups of ground mode mechanisms, in conjunction with the coordinated work of a lifting mechanism, a rotating mechanism and a linkage mechanism, to accurately simulate the shock absorption performance of agricultural machinery under various road conditions; during detection, the inclination and slope of the ground mode conveyor platform are first adjusted through the tilt adjustment component and the slope adjustment component to simulate different road conditions, and the lifting mechanism gradually loads the agricultural machinery suspension mechanism placed on the ground mode mechanism to different load states to simulate the change of shock absorption stroke under different load conditions; at the same time, the linkage mechanism ensures that the suspension mechanism maintains a coordinated state with the laser sensor during the shock absorption process, and ensures synchronous movement during the suspension shock absorption process, so that the laser sensor can 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 changes in different road angles and slopes, 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 maintenance costs and use risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the structure of the detection mechanism in the present invention; Figure 4 It is a schematic diagram of the internal structure of the detection mechanism in the present invention; Figure 5 It is a schematic diagram of the internal structure of the tilt adjustment component in the present invention; Figure 6 It is a schematic diagram of the structure of the slope adjustment component in the present invention; Figure 7 It is a schematic diagram of the internal structure of the ground mode conveyor platform in the present invention; Figure 8 It is a schematic diagram of the support roller structure in the present invention; Fig. 9 It is a schematic diagram of the internal structure of the lifting mechanism in the present invention; Fig.10 It is a structural schematic diagram of the agricultural machinery suspension mechanism in the present invention; Fig.11 It is a schematic diagram of the linkage mechanism structure in the present invention.

[0017] Description of reference numerals: 1. Inspection table; 101. Slotting; 2. Ground mode mechanism; 201. Mounting frame; 202. Tilt adjustment assembly; 2021. Active bevel gear; 2022. Mounting sleeve; 2023. Driven bevel gear; 2024. Threaded sleeve; 2025. Threaded rod; 2026. First servo motor; 203. Slope adjustment assembly; 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 platform; 2041. Conveyor frame; 2042. Ground mode conveyor belt assembly ; 2043, support roller; 2044, support shaft seat; 2045, pressure sensor; 205, slide; 3, lifting mechanism; 301, stand; 302, screw rod; 303, thread sleeve; 304, lifting seat; 305, second servo motor; 4, linkage mechanism; 401, threaded seat; 402, screw rod; 403, clamping plate; 404, slide rod; 405, clamping bracket; 406, laser sensor; 5, agricultural machinery suspension mechanism; 501, wheel; 502, support shaft frame; 503, shock-absorbing cylinder; 6, rotating mechanism; 601, second worm gear; 602, third worm; 603, third servo motor. DETAILED DESCRIPTION

[0018] The following will be combined with the attached Figure 1 To Attachment Fig.11 The technical solutions in the embodiments of the present invention are described clearly and completely. 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.

[0019] A shock-absorbing stroke detection device for an agricultural machinery suspension comprises a detection platform 1, four sets of ground mode mechanisms 2 and a lifting mechanism 3, and also comprises 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 through an axle bolt, and the linkage mechanism 4 is clamped and connected with the agricultural machinery suspension mechanism 5, a rotating mechanism 6 is installed at the bottom of the lifting mechanism 3, and the lifting mechanism 3 is fixedly mounted at the inner center of the detection platform 1 through a turntable, and four slots 101 are equidistantly opened on the top of the detection platform 1; 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; 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; 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; 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. 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.

[0020] like Figures 3 to 5As 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; Among them, the tilt adjustment component 202 realizes automatic tilt adjustment of the mounting frame 201 through the cooperation of the active 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 active bevel gear 2021 to rotate, and the active bevel gear 2021 drives the driven bevel gear 2023 to rotate by meshing with the driven bevel gear 2023, and the threaded rod 2025 on the top of the driven bevel gear 2023 rotates accordingly, so that the threaded sleeve 2024 moves up and down along the threaded rod 2025. Since the threaded sleeve 2024 is movably connected to one side of the mounting frame 201 through the shaft bolt, the movement of the threaded sleeve 2024 will drive the mounting frame 201 to tilt relative to the detection platform 1, and the encoder is used to monitor and feedback the rotation angle of the driven bevel gear 2023 in real time, thereby realizing precise control of the tilt angle; like Figure 6 As shown, the slope adjustment assembly 203 consists of 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 test bench 1 through 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, and the first bevel gear 2033 is fixedly mounted on both ends of the first worm wheel 2031 through a transmission shaft, and the two second worms 2035 are fixedly mounted on the two ends of the first worm wheel 2031 through a transmission shaft. It is fixedly installed inside the detection platform 1 through a bearing seat, an encoder is fixedly installed on one end of one of the second worm gears 2035, two discontinuous worm gears 2036 are respectively meshed and connected to the tops of the two second worm gears 2035, and the two discontinuous worm gears 2036 are respectively fixedly installed on both sides of the bottom of the ground mode conveying platform 204, and two second bevel gears 2034 are respectively fixedly installed 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; Among them, the spiral directions of the two second worm gears 2035 are opposite, so when the first bevel gear 2033 and the two second bevel gears 2034 are meshed for transmission, the two second worm gears 2035 with opposite spiral directions rotate in opposite directions and cooperate with the meshing connected intermittent worm gear 2036 to drive the ground mode conveying platform 204 to tilt and rotate; the slope adjustment component 203 realizes precise transmission through the meshing connection between the first worm gear 2031 and the first worm gear 2032, the first bevel gear 2033 at both ends of the first worm gear 2031 meshes 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, and the two second worm gears 2035 are further fixed in the detection platform 1 through the bearing seat, and an encoder is installed at one end of one of the second worm gears 2035 to monitor its rotation angle in real time, and the intermittent worm gear 2036 at the top of the two second worm gears 2035 is connected to the fixed The fixed installation makes it possible to accurately adjust the inclination angle of the ground mode conveying platform 204 when the second worm 2035 is rotated, so as to adapt the facial massager to different inclination angles. At the same time, due to the use of a worm gear mechanism, it not only transmits a large torque, but also has a self-locking effect to ensure that a fixed angle is maintained after adjustment; specifically, firstly, the first worm 2032 is rotated to drive the first worm wheel 2031 to rotate, and the first worm wheel 2031 drives the two first bevel gears 2033 to rotate synchronously, and then through the engagement of the first bevel gear 2033 and the second bevel gear 2034, the rotating two first bevel gears 2033 respectively drive the two second worms 2035 to rotate in the opposite direction at the same time, and finally the intermittent worm wheel 2036 at the top of the second worm 2035 drives the ground mode conveying platform 204 to tilt and rotate, so as to achieve the purpose of adjusting the inclination angle, and the encoder monitors and feeds back the rotation angle of the second worm 2035 in real time to ensure the adjustment accuracy.

[0021] like Figures 7 and 8 As shown, 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, and the support roller 2043 is rotatably installed inside the conveyor frame 2041. Support shaft seats 2044 are rotatably installed at both ends of the support roller 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. Among them, the working principle of the ground mode conveyor platform 204 is to drive the wheels 501 in the agricultural machinery suspension mechanism 5 to rotate through the ground mode conveyor belt assembly 2042, simulating the detection of the agricultural machinery suspension mechanism 5 under different road conditions, wherein 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 changes of the support roller 2043 in real time. The pressure change directly reflects the weight distribution of the items on the ground mode conveyor belt assembly 2042, and can be used to accurately control the load of the agricultural machinery suspension mechanism 5.

[0022] like Fig. 9 As shown, the lifting mechanism 3 is composed of a stand 301, a screw rod 302, a wire sleeve 303, a lifting seat 304 and a second servo motor 305. The screw rod 302 is rotatably installed inside the stand 301, the wire 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, and the wire sleeve 303 is fixedly connected to the lifting seat 304. 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 installed at the bottom of the stand 301; Among them, the lifting mechanism 3 drives the screw rod 302 to rotate through the operation of the second servo motor 305. Since the wire sleeve 303 is fixedly sleeved on the outside of the screw rod 302 and fixedly connected to the lifting seat 304, the rotational movement of the screw rod 302 is converted into the linear movement of the lifting seat 304, so that the lifting seat 304 moves up and down along the screw rod 302, driving the overall lifting and lowering of the agricultural machinery suspension mechanism 5, so as to adjust the pressure of the agricultural machinery suspension mechanism 5 on the ground mode conveying platform 204, so as to simulate the detection of the shock absorbing stroke of the ground mode conveying platform 204 under different load conditions.

[0023] like Fig. 9 As shown, 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 outer side of the bottom of the stand 301, the third worm 602 is meshedly connected with the second worm gear 601, one end of the third worm 602 is fixedly connected with the output end of the third servo motor 603, and the third servo motor 603 is fixedly mounted inside the detection platform 1; Among them, the rotating mechanism 6 drives the third worm 602 to rotate through the third servo motor 603, and the third worm 602 is engaged with the second worm wheel 601 fixed on the outer side of the bottom of the frame 301, so that the second worm wheel 601 rotates synchronously with the rotation of the third worm 602, thereby driving the frame 301 connected thereto to rotate at an angle, and the rotating frame 301 drives the agricultural machinery suspension mechanism 5 to adjust its orientation, thereby adjusting the agricultural machinery suspension mechanism 5 to perform detection on the ground mode mechanism 2 with different road characteristics.

[0024] like Fig.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; 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.

[0025] like Fig.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. 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, which is convenient for transmitting the detected electrical signal to the controller for calculation; by rotating the screw 402 inside the threaded seat 401, the clamping plate 403 is driven to move downward to clamp the top of the shock-absorbing cylinder 503, and the laser sensor 406 is fixed to the outside of the shock-absorbing cylinder 503 through the clamping bracket 405. Since the sliding rod 404 is movably connected to the clamping bracket 405, when the shock-absorbing cylinder 503 is telescopically retracted and damped, the sliding rod 404 follows the shock-absorbing cylinder 503 to telescope and move, and the shock-absorbing stroke of the shock-absorbing cylinder 503 is detected by detecting the moving stroke of the sliding rod 404 through the laser sensor 406.

[0026] like Figure 1 to Figure 2 As shown, a controller is fixedly installed on the outside of the test bench 1, and a partition is fixedly installed inside the test bench 1. The partition wall cooperates with the slot 101 to separate the inside of the test bench 1 into an installation room; Among them, the controller is electrically connected to the pressure sensor 2045 through a wire, and the real-time load data of the agricultural machinery suspension mechanism 5 is collected through the pressure sensor 2045 and transmitted to the controller for calculation. The controller adjusts the load parameters according to the detection needs, and then uses the precise laser sensor 406 to capture accurate shock absorbing stroke data. Finally, through the analysis of the collected data, the shock absorbing performance of the suspension under different load conditions is obtained, thereby helping agricultural machinery manufacturers and operation and maintenance personnel to better understand and optimize the shock absorbing performance of the suspension system.

[0027] According to the explanation and teaching of the above description, those skilled in the art to which the present invention belongs may also change and modify 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 scope of protection 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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