A vehicle shock absorber performance testing device

Abstract

The present invention is applicable to the technical field of automobile shock absorber detection, and provides an automobile shock absorber performance detection device, including a test component, a first simulation component is arranged below the test component, a detection component is arranged on the top of the test component, and a second simulation component is arranged in the middle position between the test component and the first simulation component. The test component includes a first mounting platform, a plurality of support columns are arranged below the first mounting platform, a mounting plate is connected to the top of the first mounting platform, two groups of slide grooves are penetrated through the mounting plate, and a group of slide plates are respectively arranged inside the two groups of slide grooves, a second mounting platform is arranged on one side of the mounting plate, the second mounting platform is fixedly connected to the mounting plate, two groups of cylinders are arranged on the top of the second mounting platform, and a suspension mechanism is arranged at the end of the hinged column away from the cylinder. The device solves the problem of multi-station detection of shock absorbers and achieves the purpose of comprehensive detection of shock absorbers.

Description

Technical Field

[0001] The invention relates to the technical field of automobile shock absorber detection, and more specifically, to an automobile shock absorber performance detection device. Background Art

[0002] Automobile shock absorbers are an important part of the automobile suspension system. Their main function is to reduce the vibration caused by uneven road conditions during driving. Shock absorbers consume vibration energy through damping, allowing the vibration of the vehicle to decay rapidly, keeping the vehicle body stable, making it easier for the driver to control the vehicle during driving and reducing the risk of accidents.

[0003] At present, the commonly used shock absorber performance testing devices on the market are mainly automobile shock absorber fatigue testing machines, which are mainly used to perform durability tests, dynamic and static tests, fatigue life tests, etc. on shock absorbers. By applying periodic loads to the shock absorbers, their working conditions are simulated to detect performance changes and fatigue life of the shock absorbers after long-term use. This type of testing device mainly performs one-to-one targeted testing on shock absorbers and cannot meet the needs of simultaneous testing of multiple shock absorbers. It has a single functionality and the test results are of poor reference value. The staff has improved the existing testing device and set the device to a double-station testing method to meet the needs of simultaneous testing of multiple shock absorbers.

[0004] However, in actual applications, a car is provided with several groups of shock absorbers, and the multiple groups of shock absorbers present different performance states during the use of the car. The existing shock absorber detection device cannot accurately simulate this state, and the detection effect of the shock absorber is not ideal. It is impossible to accurately judge the performance characteristics of the shock absorber, which affects the subsequent use of the shock absorber. Now a car shock absorber performance detection device is proposed to improve the existing problems. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention aims to provide a vehicle shock absorber performance testing device.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an automobile shock absorber performance detection device, comprising a test component, a first simulation component is arranged below the test component, a detection component is arranged on the top of the test component, and a second simulation component is arranged in the middle position between the test component and the first simulation component.

[0007] The test assembly includes a first mounting platform, a plurality of support columns are arranged below the first mounting platform, the support columns are fixedly connected to the first mounting platform, a mounting plate is connected above the first mounting platform, two groups of slide grooves are penetrated through the mounting plate, a group of slide plates are respectively arranged inside the two groups of slide grooves, a second mounting platform is arranged on one side of the mounting plate, the second mounting platform is fixedly connected to the mounting plate, two groups of cylinders are arranged on the top of the second mounting platform, a group of hinged columns are respectively arranged below the two groups of cylinders, and a suspension mechanism is arranged at the end of the hinged column away from the cylinder.

[0008] The suspension mechanism includes two groups of shock absorbers, and a group of hinged columns are respectively arranged above the two groups of shock absorbers. One end of the hinged column is hinged to the shock absorber, and the other end of the hinged column is connected to the output end of the cylinder. The hinged column passes through the slide plate, and the hinged column is fixedly connected to the slide plate. The end of the slide plate away from the hinged column passes through the slide groove, and the slide plate can slide up and down along the inside of the slide groove.

[0009] The first simulation component comprises a mounting frame, on which two groups of supporting frames are arranged, a fixing frame is arranged above the supporting frame, and a simulation mechanism is arranged in the middle position of the fixing frame.

[0010] The present invention is further configured as follows: a group of connecting plates are respectively connected to the lower parts of the two groups of shock absorbers, a hinge block is provided on one side of the connecting plate, the hinge block is hinged to the connecting plate, and a tire is provided on the side of the hinge block away from the connecting plate.

[0011] The present invention is further configured as follows: a connecting block is arranged in the middle position of the two groups of connecting plates, the connecting blocks are respectively connected to the two groups of connecting plates, a group of connecting columns are respectively arranged on both sides of the connecting block, the connecting columns are arranged above the connecting plates, and the two groups of connecting columns are respectively hinged to the ends of the two groups of hinge blocks.

[0012] By adopting the above technical scheme, the connecting plate, the hinge block, the connecting column and the connecting block are combined to form a parallelogram structure. The parallelogram structure is easy to deform, which is convenient for the recovery of the mechanism after deformation. There are two groups of parallelogram structures on the left and right in the suspension mechanism, which fits the suspension system of the car in real life and is convenient for detecting the actual working condition of the car. In specific applications, the two groups of cylinders located on the top of the second mounting platform are used as power to drive the two groups of hinged columns to move up and down, and the two groups of hinged columns drive the two groups of shock absorbers connected at the ends to move, and the two groups of shock absorbers respectively drive their corresponding parallelograms to move, simulating the movement of the shock absorption system in the actual car movement, realizing multi-station detection of the shock absorber, and achieving the purpose of shock absorber detection.

[0013] The present invention is further configured as follows: a group of simulation mechanisms are respectively arranged under the two groups of tires, the simulation mechanisms are in contact with the tires, the simulation mechanisms include a first protrusion, a second protrusion is arranged on one side of the first protrusion, a third protrusion is arranged on the side of the second protrusion away from the first protrusion, and the heights of the first protrusion, the second protrusion and the third protrusion increase sequentially.

[0014] By adopting the above technical scheme, the heights of the first protrusion, the second protrusion and the third protrusion increase successively. The first protrusion simulates a small protrusion in actual driving of the car, the second protrusion simulates a medium road condition, and the third protrusion simulates a large obstacle encountered in actual operation of the car. The three road condition simulations can detect the response of the shock absorber to the three situations and obtain actual detection results. At the same time, a smooth road surface is provided between the protrusions, and the specific response of the shock absorber on a smooth road surface can also be detected. Under different road conditions, the limit state performance of the two shock absorbers can also be detected. When a shock absorber is subjected to a contraction limit state detection, the suspension mechanism as a whole will tilt. At this time, a tensile limit state detection can be performed on the other shock absorber, thereby achieving a comprehensive detection effect on the shock absorber.

[0015] The present invention is further configured as follows: a motor is arranged below the simulation mechanism, a transmission mechanism is arranged on one side of the motor, the transmission mechanism includes a driving wheel, a driven wheel and a synchronous belt, the synchronous belt is rotatably connected to the outer walls of the driving wheel and the driven wheel, and the driving wheel of the transmission mechanism is connected to the output end of the motor.

[0016] The present invention is further configured as follows: two groups of rollers are arranged inside the simulation mechanism, and one group of the rollers is connected to the driven wheel of the transmission mechanism.

[0017] By adopting the above technical solution, when the motor is started, the motor drives the driving wheel of the transmission mechanism to move, and under the drive of the driving wheel of the transmission mechanism, the driven wheel of the transmission mechanism starts to move, and the driven wheel of the transmission mechanism drives the roller inside the simulation mechanism to rotate, and then the simulation mechanism moves in one direction driven by the roller, the first protrusion, the second protrusion and the third protrusion on the simulation mechanism move, the tire contacts and collides with the simulation mechanism, and the shock absorber adjusts the movement state, thereby achieving the purpose of detecting the actual movement of the shock absorber.

[0018] The present invention is further configured as follows: the second simulation component includes a liquid storage tank, which is arranged above the first mounting platform, the interior of the liquid storage tank is hollow and is used to store liquid, a nozzle is arranged on one side of the liquid storage tank, the nozzle is connected to the liquid storage tank, the nozzle is arranged above the shock absorber, and the end of the nozzle corresponds to the shock absorber.

[0019] The present invention is further configured as follows: a dust storage box is also provided on one side of the liquid storage box, the dust storage box is placed below the nozzle, the interior of the dust storage box is hollow and is used to store dust, a fan is provided on the side of the dust storage box away from the liquid storage box, the fan is connected to the dust storage box, a shock absorber is provided on one side of the fan, and the air outlet of the fan corresponds to the shock absorber.

[0020] By adopting the above technical scheme, in actual testing, the nozzle can spray liquid on the shock absorber to simulate humidity. At this time, the specific reaction characteristics of the shock absorber to the humidity environment can be detected by the device. After the humidity simulation, dust can be dispersed by the fan to simulate the dust environment. At this time, the specific reaction characteristics of the shock absorber to the dust environment can be detected by the device. The simulated detection of road conditions and actual environment achieves the purpose of comprehensive detection of shock absorbers and ensures the integrity and comprehensiveness of the detection.

[0021] The present invention is further configured as follows: the detection component includes a detection module, the detection module includes two parts: limit detection and separate detection, the limit detection is to detect and judge the limit value of the shock absorber, when the shock absorber can meet the set limit requirements, an alarm will be issued, otherwise it needs to be repaired and tested again.

[0022] The present invention is further configured as follows: the separate detection is a situation-specific detection of the shock absorber. When the shock absorber meets the set environmental conditions, the humidity environment and the dust environment are detected. When both conditions are met, all detections are completed and the shock absorber meets the good product conditions. Otherwise, it needs to be repaired and tested again.

[0023] By adopting the above technical scheme, in the specific detection process, the shock absorber is first subjected to limit detection, that is, pre-detection, and the left shock absorber is first compressed to the minimum, and the right shock absorber is stretched to the maximum. At this time, the compression limit of the left shock absorber and the stretching limit of the right shock absorber are tested. When the set limit values ​​are met, the detection device will sound an alarm, otherwise, maintenance will be carried out to check the problems of the shock absorber itself. If the first limit detection is completed, the status of the left and right shock absorbers will be flipped to detect whether the limit values ​​of the shock absorbers are met. If they are met, an alarm will also be sounded, otherwise the two shock absorbers will be repaired. If both tests reach the detection target, the limit detection is completed.

[0024] After the limit test is completed, a separate test task is carried out. The separate test task is a situation-based test on the shock absorber. First, the shock absorber is tested for road conditions. The simulation mechanism is driven by the starting motor to simulate the actual road conditions. The specific test data is used to detect whether the shock absorber meets the good product conditions. If not, it is repaired. After the repair is completed, it is tested again. If it meets the test conditions of the actual road conditions, the environmental test part is carried out. In the environmental test, the nozzle sprays liquid and the fan emits dust to simulate the humidity and dust environment. The test data is used again to determine whether the shock absorber meets the good product conditions. If it does not meet the test conditions, it is repaired and then tested again. If the environmental test conditions are also met, the shock absorber completes all tests and meets the conditions for use.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] (1) By setting up the test component, the cylinder can drive the hinge column to move linearly up and down. The hinge column passes through the skateboard, and the hinge column is fixedly connected to the skateboard. The up and down movement of the hinge column can drive the synchronous linear movement of the skateboard. The end of the skateboard away from the hinge column passes through the slide groove. Due to the limiting effect of the slide groove, the skateboard can slide up and down along the inside of the slide groove, ensuring the movement trajectory of the skateboard. Then, under the limiting effect of the skateboard, the shock absorber can move along a predetermined route. The two groups of shock absorbers respectively drive their corresponding parallelogram structure components to move under the movement of the predetermined route, simulating the movement of the shock absorption system in the actual automobile movement, realizing the multi-station detection of the shock absorber, and achieving the purpose of shock absorber detection.

[0027] (2) By setting the first, second and third bumps, and the corresponding heights of the three groups of bumps increase in sequence, the first bump simulates a small bump in actual driving of the car, the second bump simulates a medium road condition, and the third bump simulates a large obstacle encountered in actual operation of the car. The three road condition simulations can detect the response of the shock absorber to the three situations and obtain the actual test results. At the same time, a smooth road surface is set between the bumps, and the specific response of the shock absorber on the smooth road surface can also be detected. Under different road conditions, the limit state performance of the two shock absorbers can also be tested. When one shock absorber is tested for the contraction limit state, the suspension mechanism as a whole will tilt. At this time, the tensile limit state test can be performed on the other shock absorber, achieving the effect of comprehensive testing of the shock absorber.

[0028] (3) By setting up nozzles and fans, the nozzles can spray liquid on the shock absorbers to simulate humidity. At this time, the device can be used to detect the specific reaction characteristics of the shock absorber to the humidity environment. After the humidity simulation is completed, dust can be dispersed through the fan to simulate the dust environment. At this time, the device can be used to detect the specific reaction characteristics of the shock absorber to the dust environment. The simulated detection of road conditions and actual environment achieves the purpose of comprehensive detection of the shock absorber and ensures the integrity and comprehensiveness of the detection.

[0029] (4) By setting up a detection device, the detection module includes two parts: limit detection and separate detection. The limit detection is to detect and judge the limit value of the shock absorber. When the shock absorber can meet the limit requirement, an alarm will sound. Otherwise, it needs to be repaired and then tested again. The separate detection part performs targeted detection after the limit detection is completed. The separate detection is a situation-based detection of the shock absorber. When the shock absorber meets various road conditions, humidity and dust detection is performed. When both conditions are met, all tests are completed and the shock absorber meets the good condition. Otherwise, it needs to be repaired and then tested again. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The figure is a schematic structural diagram of a vehicle shock absorber performance detection device in the present invention.

[0031] Figure 2 For the present invention Figure 1 Front view of .

[0032] Figure 3 It is a schematic diagram of the structure of the first simulation component in the present invention.

[0033] Figure 4 It is a schematic diagram of the structure of the test component in the present invention.

[0034] Figure 5 It is a schematic diagram of the cooperation between the second simulation component and the shock absorber in the present invention.

[0035] Figure 6 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0036] Figure 7 It is a structural schematic diagram of the suspension mechanism in the present invention.

[0037] Figure 8 For the present invention Figure 4 Schematic diagram of the enlarged structure of area B in the middle.

[0038] Fig. 9 It is a system flow chart of the detection module in the present invention.

[0039] Fig.10 It is a system flow chart of the limit detection module in the present invention.

[0040] Fig.11 It is a system flow chart of the separate detection module in the present invention.

[0041] Description of reference numerals: 1. test assembly; 11. first mounting platform; 12. support column; 13. mounting plate; 14. slideway; 15. second mounting platform; 16. slide plate; 17. cylinder; 18. hinge column; 19. suspension mechanism; 191. shock absorber; 192. connecting plate; 193. hinge block; 194. connecting column; 195. connecting block; 196. tire;

[0042] 2. First simulation component; 21. Mounting frame; 22. Support frame; 23. Fixing frame; 24. Simulation mechanism; 241. First protrusion; 242. Second protrusion; 243. Third protrusion; 25. Motor; 26. Transmission mechanism;

[0043] 3. Second simulation component; 31. Liquid storage tank; 32. Nozzle; 33. Dust storage box; 34. Fan;

[0044] 4. Detect components. DETAILED DESCRIPTION

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0046] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0047] See also Figure 1-11 , the present invention provides the following technical solutions:

[0048] Embodiment 1, a vehicle shock absorber performance testing device, includes a testing component 1, the testing component 1 is used to place and fix the product so that subsequent testing can proceed normally, and the specific structure of the testing component 1 is as follows:

[0049] See also Figure 4The test assembly 1 includes a first mounting platform 11, a plurality of support columns 12 are arranged below the first mounting platform 11, the support columns 12 are fixedly connected to the first mounting platform 11, a mounting plate 13 is connected to the top of the first mounting platform 11, two groups of slide grooves 14 are opened through the mounting plate 13, and a group of slide plates 16 are respectively arranged inside the two groups of slide grooves 14, a second mounting platform 15 is arranged on one side of the mounting plate 13, the second mounting platform 15 is fixedly connected to the mounting plate 13, and two groups of cylinders 17 are arranged on the top of the second mounting platform 15, and the cylinders 17 are the working To provide power for the normal progress of subsequent testing work, a group of hinged columns 18 are respectively arranged under the two groups of cylinders 17. A suspension mechanism 19 is arranged at one end of the hinged column 18 away from the cylinder 17. The suspension mechanism 19 is the main part of the device, which is convenient for the normal clamping of the product to facilitate the normal progress of subsequent testing work. When the piston rod of the cylinder 17 extends downward, it pushes the corresponding hinged column 18 to move downward, thereby pressurizing the suspension mechanism 19. Conversely, when the piston rod of the cylinder 17 moves upward, the hinged column 18 moves upward synchronously, thereby canceling the pressurization operation on the suspension mechanism 19.

[0050] See also Figure 4 and Figure 7 The specific structure of the suspension mechanism 19 is as follows:

[0051] The suspension mechanism 19 includes two groups of shock absorbers 191, and a group of hinged columns 18 are respectively arranged above the two groups of shock absorbers 191. One end of the hinged column 18 is hinged to the shock absorber 191, and the other end of the hinged column 18 is connected to the output end of the cylinder 17. When the cylinder 17 is started, the cylinder 17 can drive the hinged column 18 to move up and down in a straight line. The hinged column 18 passes through the slide plate 16, and the hinged column 18 is fixedly connected to the slide plate 16. The up and down movement of the hinged column 18 can drive the synchronous straight line movement of the slide plate 16. The end of the slide plate 16 away from the hinged column 18 passes through the slide groove 14. Due to the limiting effect of the slide groove 14, the slide plate 16 can slide up and down along the inside of the slide groove 14, thereby ensuring the movement trajectory of the slide plate 16. Then, under the limiting effect of the slide plate 16, the shock absorber 191 can move along a predetermined route to ensure the normal progress of the detection work.

[0052] See also Figure 4 and Figure 7In this embodiment, a group of connecting plates 192 are respectively connected to the lower parts of the two groups of shock absorbers 191. The connecting plates 192 are hinged to the shock absorbers 191. The movement of the shock absorbers 191 can drive the movement of the connecting plates 192. A hinge block 193 is provided on one side of the connecting plate 192. The hinge block 193 is hinged to the connecting plate 192. The movement of the connecting plate 192 can drive the movement of the hinge block 193. A tire 196 is provided on the side of the hinge block 193 away from the connecting plate 192. The hinge block 193 and the tire 196 are fixedly connected. The movement of the hinge block 193 then drives the movement of the tire 196. The shock absorbers 191, the connecting plates 192, the hinge blocks 193 and the tire 196 constitute the specific movement of each mechanism in the detection device step by step.

[0053] See also Figure 4 and Figure 7 A connecting block 195 is provided in the middle of the two groups of connecting plates 192, and the connecting blocks 195 are respectively connected to the two groups of connecting plates 192. A group of connecting columns 194 are respectively provided on both sides of the connecting block 195, and the connecting columns 194 are arranged above the connecting plates 192. The two groups of connecting columns 194 are respectively hinged to the ends of the two groups of hinge blocks 193. Among them, the connecting plates 192, the hinge blocks 193, the connecting columns 194 and the connecting blocks 195 are combined to form a parallelogram structure. The parallelogram structure has the characteristics of easy deformation, which is convenient for the recovery of the mechanism after deformation. There are two left and right parallelogram structures in the structure 19, which fits the suspension system of the car in real life and is convenient for detecting the actual working condition of the car. In specific applications, the two groups of cylinders 17 located on the top of the second mounting platform 15 are used as power to drive the two groups of hinged columns 18 to move up and down, and the two groups of hinged columns 18 drive the two groups of shock absorbers 191 connected at the ends to move, and the two groups of shock absorbers 191 respectively drive their corresponding parallelograms to move, simulating the movement of the shock absorption system in the actual movement of the car, realizing multi-station detection of the shock absorber 191, and achieving the purpose of detecting the shock absorber 191.

[0054] In the second embodiment, the existing device uses a double-station to detect the shock absorbing device, that is, the shock absorbing device is fixedly installed on the detection device, and a periodic load is applied to the shock absorber to simulate its working state. The purpose is to detect the performance changes and fatigue life of the shock absorbing device after long-term use. However, this method cannot perform simulated detection of the actual road surface, which affects the judgment of the detection result of the shock absorbing device.

[0055] See also Figure 1 and Figure 2 To this end, a first simulation component 2 is provided below the test component 1, specifically, the first simulation component 2 is provided below the tire 196, and the first simulation component 2 is used to simulate the actual road condition. The specific structure of the first simulation component 2 is as follows:

[0056] See also Figure 2 , Figure 3 and Figure 6 In this embodiment, the first simulation component 2 includes a mounting frame 21, which provides a stable support for the detection device. Two groups of support frames 22 are arranged on the mounting frame 21, and a fixing frame 23 is arranged above the support frame 22. The fixing frame 23 and the support frame 22 are combined to form a complete detection bracket, which is convenient for the fixed installation of the device. A simulation mechanism 24 is arranged in the middle position of the fixing frame 23. The fixing frame 23 can fix the simulation mechanism 24 to ensure the normal movement of the simulation mechanism 24, so as to facilitate the normal progress of subsequent detection.

[0057] See also Figure 2 , Figure 3 and Figure 6 A group of simulation mechanisms 24 are respectively arranged under the two groups of tires 196, and the simulation mechanisms 24 are in contact with the tires 196. The simulation mechanisms 24 can specifically simulate the specific road conditions of the actual operation of the car. The simulation mechanism 24 includes a first protrusion 241, a second protrusion 242 is arranged on one side of the first protrusion 241, and a third protrusion 243 is arranged on the side of the second protrusion 242 away from the first protrusion 241. The heights of the first protrusion 241, the second protrusion 242 and the third protrusion 243 increase successively. The first protrusion 241 simulates a small protrusion in the actual driving of the car, the second protrusion 242 simulates a medium road condition, and the third protrusion 243 simulates a large obstacle encountered in the actual operation of the car. The three road condition simulations can detect the response of the shock absorber 191 to the three situations and obtain actual detection results. At the same time, a smooth road surface is arranged between the protrusions, and the specific response of the shock absorber 191 on the smooth road surface can also be detected, thereby achieving a comprehensive detection effect on the shock absorber 191.

[0058] See also Figure 2 , Figure 3 and Figure 6 A motor 25 is arranged below the simulation mechanism 24, and a transmission mechanism 26 is arranged on one side of the motor 25. The transmission mechanism 26 is specifically a chain transmission mechanism. The chain transmission mechanism can ensure the movement state of the device and meet the requirements of specific actual road condition simulation, so as to facilitate the subsequent detection work. The transmission mechanism 26 includes a driving wheel, a driven wheel and a synchronous belt, and the synchronous belt is rotatably connected to the outer walls of the driving wheel and the driven wheel. The driving wheel of the transmission mechanism 26 passes through the fixed frame 23 and is connected to the output end of the motor 25 to ensure the normal movement of the device, so as to facilitate the normal operation of the subsequent detection work. Two groups of rollers are arranged inside the simulation mechanism 24, one of which is connected to the driven wheel of the transmission mechanism 26. The rollers of the simulation mechanism 24 rotate under the drive of the transmission mechanism 26, and the simulation mechanism 24 starts to move slowly under the rotation of the rollers, thereby achieving the purpose of simulating actual road conditions.

[0059] When the motor 25 is started, the motor 25 drives the driving wheel of the transmission mechanism 26 to move. Under the drive of the driving wheel of the transmission mechanism 26, the driven wheel of the transmission mechanism 26 starts to move, and the driven wheel of the transmission mechanism 26 drives the roller inside the simulation mechanism 24 to rotate, and then the simulation mechanism 24 moves in one direction under the drive of the roller, and the first protrusion 241, the second protrusion 242 and the third protrusion 243 on the simulation mechanism 24 move, and the tire 196 contacts and collides with the simulation mechanism 24. The shock absorber 191 can adjust the overall motion state of the suspension mechanism 19. At this time, the performance of the two shock absorbers 191 can be detected at the same time. When one shock absorber 191 is subjected to the contraction limit state detection, the suspension mechanism 19 will tilt as a whole. At this time, the tensile limit state detection can be performed on the other shock absorber 191, thereby achieving the purpose of detecting the actual motion condition of the shock absorber 191.

[0060] In the third embodiment, in order to ensure the authenticity of the simulation of actual road conditions, various protrusions are added to the detection device to simulate specific road conditions, that is, the corresponding detection results are obtained through the reaction of the shock absorbing device to the road surface. However, the simulation detection results are single. The shock absorbing device will also be affected by the environment during the actual operation of the car. Simulating the actual environment is also an important step in the detection device.

[0061] See also Figure 1 and Figure 5 To this end, a second simulation component 3 is arranged inside the test component 1. The second simulation component 3 includes a liquid storage tank 31. The liquid storage tank 31 is arranged above the first mounting platform 11. The liquid storage tank 31 is hollow inside and is used to store liquid as a reserve for humidity detection. A nozzle 32 is arranged on one side of the liquid storage tank 31. The nozzle 32 is connected to the liquid storage tank 31. The liquid in the liquid storage tank 31 can be sprayed out through the nozzle 32. The nozzle 32 is arranged above the shock absorber 191, and the end of the nozzle 32 corresponds to the shock absorber 191. The liquid sprayed by the nozzle 32 can directly reach the position of the shock absorber 191, so as to achieve the simulation. In order to achieve the purpose of humidity environment influence, a dust box 33 is also provided on one side of the liquid storage tank 31. The dust box 33 is placed below the nozzle 32. The interior of the dust box 33 is hollow and is used to store dust as a reserve for detecting dust. A fan 34 is provided on the side of the dust box 33 away from the liquid storage tank 31. The fan 34 is connected to the dust box 33. The dust in the dust box 33 can be dispersed through the fan 34. A shock absorber 191 is provided on one side of the fan 34, and the air outlet of the fan 34 corresponds to the shock absorber 191. The dust dispersed by the fan 34 can directly reach the position of the shock absorber 191, thereby achieving the purpose of simulating the influence of the dust environment.

[0062] In actual testing, the nozzle 32 can spray liquid on the shock absorber 191 to simulate humidity. At this time, the device can detect the specific reaction characteristics of the shock absorber 191 to the humidity environment. After the humidity simulation is completed, dust can be dispersed through the fan 34 to simulate the dust environment. At this time, the device can detect the specific reaction characteristics of the shock absorber 191 to the dust environment. The simulated detection of road conditions and actual environment achieves the purpose of comprehensive detection of the shock absorber 191, ensuring the integrity and comprehensiveness of the detection.

[0063] Embodiment 4, in order to ensure the comprehensiveness of the shock absorption system detection, humidity detection and dust detection devices are added on the basis of road condition detection, that is, to detect the characteristics of the shock absorption system response in humidity environment and dust environment, but the mechanical detection device only provides the detection conditions and environment, and there is no clear result on the specific reaction characteristics.

[0064] See also Figure 1 To this end, a detection component 4 is set on the top of the test component 1. The detection component 4 includes a detection module. The detection module can detect the corresponding parts and explain the detection results.

[0065] See also Figure 9-11 The detection module includes two parts: limit detection and separate detection. The limit detection is to detect and judge the limit value of the shock absorber 191. When the shock absorber 191 can meet the set limit requirements, an alarm will sound, otherwise it needs to be repaired and tested again.

[0066] See also Figure 9-11 Separate testing is a situation-specific test of the shock absorber 191. For example, corresponding tests are performed on uneven roads. The shock absorber 191 will be squeezed and stretched on the uneven road surface, producing different performance characteristics. When the shock absorber 191 meets the set environmental conditions, the humidity environment and dust environment tests are performed. When both conditions are met, all tests are completed and the shock absorber 191 meets the good product conditions. Otherwise, it needs to be repaired and tested again.

[0067] During the specific detection process, the shock absorber 191 is first subjected to a limit detection, that is, a preliminary detection. The left shock absorber 191 is first compressed to the minimum, and the right shock absorber 191 is stretched to the maximum. At this time, the compression limit of the left shock absorber 191 and the stretching limit of the right shock absorber 191 are tested. When the set limit values ​​are met, the detection device will sound an alarm, otherwise, maintenance will be carried out to check for problems with the shock absorber 191 itself. If the first limit detection is completed, the states of the left and right shock absorbers 191 will be flipped to detect whether the limit values ​​of the shock absorber 191 are met. If met, an alarm will also be sounded, otherwise the two shock absorbers 191 will be repaired. If both tests reach the detection target, the limit detection is completed.

[0068] After the limit detection is completed, a separate detection task is carried out. The separate detection task is a situation-specific detection for the shock absorber 191. First, the road condition of the shock absorber 191 is detected. The simulation mechanism 24 is driven by the starting motor 25 to simulate the actual road condition. The specific detection data is used to detect whether the shock absorber 191 meets the good product conditions. If not, it is repaired. After the repair is completed, it is tested again. If it meets the detection conditions of the actual road condition, the environmental detection part is carried out. In the environmental detection, the liquid is sprayed by the nozzle 32 and the fan 34 is used to emit dust to simulate humidity and dust environment. The detection data is used again to determine whether the shock absorber 191 meets the good product conditions. If it does not meet the detection conditions, it is repaired and then tested again. If the environmental detection conditions are also met, the shock absorber 191 completes all detections and reaches the condition for use.

[0069] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A vehicle shock absorber performance testing device, characterized in that: It comprises a test component (1), a first simulation component (2) is arranged below the test component (1), a detection component (4) is arranged on the top of the test component (1), and a second simulation component (3) is arranged in the middle between the test component (1) and the first simulation component (2); The test assembly (1) comprises a first mounting platform (11), a plurality of support columns (12) are arranged below the first mounting platform (11), the support columns (12) are fixedly connected to the first mounting platform (11), a mounting plate (13) is connected to the top of the first mounting platform (11), two groups of slide grooves (14) are penetrated through the mounting plate (13), a group of slide plates (16) are respectively arranged inside the two groups of slide grooves (14), a second mounting platform (15) is arranged on one side of the mounting plate (13), the second mounting platform (15) is fixedly connected to the mounting plate (13), two groups of cylinders (17) are arranged on the top of the second mounting platform (15), a group of hinged columns (18) are respectively arranged below the two groups of cylinders (17), and a suspension mechanism (19) is arranged at one end of the hinged column (18) away from the cylinder (17); The suspension mechanism (19) comprises two groups of shock absorbers (191), and a group of hinged columns (18) are respectively arranged above the two groups of shock absorbers (191). One end of the hinged column (18) is hinged to the shock absorber (191), and the other end of the hinged column (18) is connected to the output end of the cylinder (17). The hinged column (18) passes through the slide plate (16), and the hinged column (18) and the slide plate (16) are fixedly connected. The end of the slide plate (16) away from the hinged column (18) passes through the slide groove (14), and the slide plate (16) can slide up and down along the inside of the slide groove (14); The first simulation component (2) comprises a mounting frame (21), two groups of support frames (22) are arranged on the mounting frame (21), a fixing frame (23) is arranged above the support frame (22), and a simulation mechanism (24) is arranged in the middle of the fixing frame (23); A group of connecting plates (192) are respectively connected and arranged below the two groups of shock absorbers (191); a hinge block (193) is arranged on one side of the connecting plate (192); the hinge block (193) is hinged to the connecting plate (192); and a tire (196) is arranged on one side of the hinge block (193) away from the connecting plate (192); A connecting block (195) is provided in the middle of the two groups of connecting plates (192), the connecting blocks (195) are respectively connected to the two groups of connecting plates (192), a group of connecting columns (194) are respectively provided on both sides of the connecting block (195), the connecting columns (194) are arranged above the connecting plates (192), the two groups of connecting columns (194) are respectively hinged to the ends of the two groups of hinge blocks (193), and the connecting plates (192), the hinge blocks (193), the connecting columns (194) and the connecting blocks (195) are combined to form a parallelogram structure; A group of simulation mechanisms (24) is respectively arranged below the two groups of tires (196), the simulation mechanisms (24) are in contact with the tires (196), the simulation mechanisms (24) comprise a first protrusion (241), a second protrusion (242) is arranged on one side of the first protrusion (241), a third protrusion (243) is arranged on the side of the second protrusion (242) away from the first protrusion (241), and the heights of the first protrusion (241), the second protrusion (242) and the third protrusion (243) increase in sequence; The detection component (4) comprises a detection module, and the detection module comprises two parts: limit detection and separate detection. The limit detection is to detect and judge the limit value of the shock absorber (191). When the shock absorber (191) can meet the set limit requirement, an alarm sound will be issued. Otherwise, it needs to be repaired and tested again. First, the shock absorber (191) on the left side is compressed to the minimum, and the shock absorber (191) on the right side is stretched to the maximum. At this time, the compression limit of the shock absorber (191) on the left side and the stretching limit of the shock absorber (191) on the right side are tested. When the set limit values ​​are met, the detection device will sound an alarm. Otherwise, maintenance is carried out to check for problems with the shock absorber (191) itself. If the first limit detection is completed, the states of the left and right shock absorbers (191) are flipped to detect whether the limit value of the shock absorber (191) is met. If it is met, an alarm sound is also issued. Otherwise, the two shock absorbers (191) are repaired; if both tests reach the detection target, the limit detection is completed; The separate test is a condition-specific test of the shock absorber (191). When the shock absorber (191) meets the set environmental conditions, the humidity environment and dust environment tests are then performed. When both conditions are met, all tests are completed and the shock absorber (191) meets the good product conditions. Otherwise, it needs to be repaired and tested again.

2. The automobile shock absorber performance detection device according to claim 1, characterized in that: A motor (25) is disposed below the simulation mechanism (24), and a transmission mechanism (26) is disposed on one side of the motor (25). The transmission mechanism (26) comprises a driving wheel, a driven wheel, and a synchronous belt. The synchronous belt is rotatably connected to the outer walls of the driving wheel and the driven wheel. The driving wheel of the transmission mechanism (26) is connected to the output end of the motor (25).

3. The automobile shock absorber performance detection device according to claim 2, characterized in that: Two groups of rollers are arranged inside the simulation mechanism (24), and one group of the rollers is connected to the driven wheel of the transmission mechanism (26).

4. The automobile shock absorber performance detection device according to claim 1, characterized in that: The second simulation component (3) comprises a liquid storage tank (31), the liquid storage tank (31) being arranged above the first mounting platform (11), the liquid storage tank (31) being hollow inside and used for storing liquid, a nozzle (32) being arranged on one side of the liquid storage tank (31), the nozzle (32) being connected to the liquid storage tank (31), the nozzle (32) being arranged above the shock absorber (191), and the end of the nozzle (32) corresponding to the shock absorber (191).

5. The automobile shock absorber performance detection device according to claim 4, characterized in that: A dust storage box (33) is also provided on one side of the liquid storage box (31); the dust storage box (33) is placed below the nozzle (32); the dust storage box (33) is hollow inside and is used to store dust; a fan (34) is provided on a side of the dust storage box (33) away from the liquid storage box (31); the fan (34) is connected to the dust storage box (33); a shock absorber (191) is provided on one side of the fan (34); and an air outlet of the fan (34) corresponds to the shock absorber (191).

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