Shock absorber testing device

Abstract

The utility model discloses a shock absorber testing device. The device comprises a rotary table, the positioning component comprises a positioning assembly arranged on one side of the rotary table, and one end of the positioning assembly is rotationally connected with the rotary table; the testing wheel is arranged on the positioning assembly, and two sides of the testing wheel are respectively connected with the shock absorber; the testing component comprises a first testing assembly and a second testing assembly, the first testing assembly is composed of a plurality of testing blocks evenly distributed on the top face of the rotary table in the circumferential direction, the second testing assembly is arranged on the positioning component, and a detection unit is further arranged on the second testing assembly; according to the utility model, after the shock absorber is arranged on the test wheel, the rotary table rotates to move relative to the test wheel to simulate the advancing of the wheel until each test block is in contact with the test wheel to simulate the state change of the shock absorber under different road conditions, and then the second test assembly applies downward pressure to the shock absorber to detect the damping characteristic, fatigue life and other parameters of the shock absorber. The applicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber testing technology, and in particular to a shock absorber testing device. Background Technology

[0002] In a vehicle suspension system, the shock absorber is a core damping element, and the surface cleanliness of its internal positioning tube directly affects the assembly accuracy of the sealing components and the stability of the hydraulic system.

[0003] Existing testing devices typically use hydraulic rods to perform pressure tests on shock absorbers. However, this method generally has limited testing capabilities. Drivers are highly sensitive to speed changes during actual driving, and the acceleration transmitted through the shock absorber after the wheels are impacted directly affects the driver's operation. However, existing testing devices often struggle to detect changes in the shock absorber's condition when dealing with different road conditions, thus limiting their applicability.

[0004] Therefore, a shock absorber testing device capable of simulating different road conditions is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing a shock absorber testing device that can simulate different road conditions.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a shock absorber testing device, including a turntable;

[0007] Positioning component: includes a positioning assembly, disposed on one side of the turntable, one end of which is rotatably connected to the turntable;

[0008] It also includes a test wheel, which is set on the positioning component, with its wheel surface in contact with the top surface of the turntable, and its two sides are detachably connected to the shock absorber;

[0009] The testing component includes a first testing component and a second testing component. The first testing component consists of multiple test blocks evenly distributed circumferentially on the top surface of the turntable to simulate different road surfaces. The second testing component is mounted on the positioning component and is used to apply vertical downward pressure to the shock absorber. The second testing component is also equipped with a detection unit for testing the shock absorber's load-bearing capacity.

[0010] Furthermore, the positioning component includes;

[0011] A positioning frame is disposed on one side of the turntable, with one end rotatably connected to the axis of the turntable, and the second test component is disposed on the positioning frame;

[0012] Two connecting rods are vertically slidably mounted on the positioning frame and connected to both sides of the test wheel respectively.

[0013] Furthermore, the second test component includes a lifting rod, the fixed end of which is connected to the positioning frame;

[0014] The test platform is connected to the telescopic end of the lifting rod, and its bottom surface is detachably connected to the top of the shock absorber. The detection unit is set on the test platform.

[0015] Furthermore, the turntable is circumferentially distributed with a plurality of positioning holes corresponding one-to-one with each of the test blocks, and each positioning hole is provided with a positioning groove communicating with it, and the opening of each positioning groove is opened on the top surface of the turntable.

[0016] Each test block is equipped with quick-release components, including:

[0017] A constraint rod is vertically rotatably mounted at the bottom of the test block and corresponds to the positioning hole.

[0018] A constraint block is disposed on the constraint rod and is adapted to the positioning groove.

[0019] Furthermore, both the test wheel and the test platform are provided with multiple mounting slots, and the corresponding ends of each shock absorber are respectively embedded in the corresponding mounting slots;

[0020] Each of the mounting slots is provided with a clamping component, which includes two clamping blocks that are slidably disposed in the mounting slot, and whose contact surfaces are adapted to the outer contour of the shock absorber; and each clamping block is also provided with an elastic unit that provides centripetal preload between it and the corresponding side wall of the mounting slot.

[0021] Furthermore, the turntable is provided with two sections of sliding grooves, and a positioning platform is provided between the two sections of sliding grooves. The top surface of the positioning platform corresponds to the trajectory of the test wheel.

[0022] The turntable is also equipped with constraint components, including:

[0023] The transmission rod passes through the positioning platform and is rotatably inserted into each of the sliding grooves, and its surface has two sections of threads with opposite directions of rotation.

[0024] Two clamping plates are slidably disposed in the corresponding slide grooves and screwed into the corresponding threads on the transmission rod;

[0025] A power unit is mounted on the turntable and is connected to the transmission rod at its moving end.

[0026] The beneficial effects of this utility model are reflected in:

[0027] This invention utilizes the cooperation between the test components and the turntable. After the shock absorber is placed on the test wheel, the turntable rotates and moves relative to the test wheel to simulate the wheel's movement until each test block contacts the test wheel to simulate the state changes of the shock absorber under different road conditions. Subsequently, the second test component applies downward pressure to the shock absorber to detect parameters such as the damping characteristics and fatigue life of the shock absorber, thereby improving its applicability. Attached Figure Description

[0028] Figure 1 This is a perspective view of the shock absorber testing device described in this utility model;

[0029] Figure 2 This is a cross-sectional view of the shock absorber testing device described in this utility model;

[0030] Figure 3 for Figure 2 Enlarged view at point A in the middle;

[0031] Figure 4 for Figure 2 Enlarged view at point B;

[0032] Figure 5 for Figure 2 A magnified view at point C;

[0033] Figure 6 Structural diagram of quick-release components.

[0034] In the picture:

[0035] 01. Shock absorber; 1. Turntable; 11. Positioning hole; 12. Positioning groove; 13. Slide groove; 14. Positioning platform; 2. Positioning component; 21. Positioning assembly; 211. Positioning frame; 212. Connecting rod; 22. Test wheel; 3. Test component; 31. First test assembly; 311. Test block; 32. Second test assembly; 321. Lifting rod; 322. Test platform; 4. Detection unit; 5. Quick release component; 51. Constraint rod; 52. Constraint block; 6. Mounting groove; 7. Clamping component; 71. Clamping block; 72. Elastic unit; 8. Constraint component; 81. Transmission rod; 82. Clamping plate; 83. Power unit. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0037] Please see Figure 1-6 This utility model discloses a shock absorber testing device, including a turntable 1;

[0038] Positioning component 2: includes positioning assembly 21, which is disposed on one side of turntable 1, and one end of which is rotatably connected to turntable 1;

[0039] It also includes a test wheel 22, which is set on the positioning component 21. Its wheel surface contacts the top surface of the turntable 1, and its two sides are detachably connected to each shock absorber 01 to provide a simulated environment for the shock absorber 01.

[0040] The test component 3 includes a first test component 31 and a second test component 32. The first test component 31 is composed of a plurality of test blocks 311 evenly distributed on the top surface of the turntable 1 in the circumferential direction, which are used to simulate different road surface conditions.

[0041] The second test component 32 is mounted on the positioning component 2 and is used to position the shock absorber 01 and apply a vertically downward pressure to it. The second test component 32 is also provided with a detection unit 4 for detecting the pressure bearing capacity of the shock absorber 01.

[0042] In practice, when the shock absorber 01 needs to be tested, the staff places both ends of the shock absorber 01 between the second test component 32 and the test wheel 22 to constrain the shock absorber 01. Then, the turntable 1 rotates and drives each test block 311 to rotate around the axis of the turntable 1 until each test block 311 contacts the test wheel 22 and passes the test by the detection unit 4 to simulate the state change of the shock absorber 01 when dealing with different road conditions. When a pressure test is required, the second test component 32 applies a vertical downward pressure to the shock absorber 01. At this time, the detection unit 4 detects the bearing capacity of the shock absorber 01.

[0043] In this invention, through the cooperation between the test component 3 and the turntable 1, after the shock absorber 01 is placed on the test wheel 22, the turntable 1 rotates and moves relative to the test wheel 22 to simulate the movement of the wheel until each test block 311 contacts the test wheel 22 to simulate the state change of the shock absorber 01 under different road conditions. Then, the second test component 32 applies downward pressure to the shock absorber 01 to detect parameters such as the damping characteristics and fatigue life of the shock absorber 01, thereby improving its applicability.

[0044] Preferably, the detection unit 4 can be a pressure sensor from the prior art.

[0045] In one embodiment, the positioning component 21 includes a positioning frame 211 disposed on one side of the turntable 1, one end of which is rotatably connected to the axis of the turntable 1. The second test component 32 is disposed on the positioning frame 211, which is used to position the second test component 32.

[0046] The positioning frame 211 is also vertically slidably provided with two connecting rods 212, and each connecting rod 212 is connected to both sides of the test wheel 22 for positioning the test wheel 22.

[0047] With this design, when the shock absorber 01 needs to be tested, the operator installs the bottom end of the shock absorber 01 on the test wheel 22, and then connects the top end of the shock absorber 01 to the second test component 32. At this time, the shock absorber 01 is constrained so that the second test component 32 can apply pressure to the shock absorber 01. When the test wheel 22 contacts the test block and moves vertically, the connecting rod 212 moves together with the test wheel 22 to avoid interfering with the rolling of the test wheel 22.

[0048] In one embodiment, the second test assembly 32 includes a lifting rod 321 vertically mounted on the positioning frame 211, with a test platform 322 at its telescopic end. The bottom surface of the test platform 322 is detachably connected to the top of the shock absorber 01. The lifting rod 321 is used to apply vertical downward pressure to the shock absorber 01, and the test platform 322 is used to constrain the shock absorber 01. The aforementioned detection unit 4 is mounted on the test platform 322.

[0049] With this design, after the shock absorber 01 is installed, the turntable 1 starts to rotate and makes the test block 311 contact the detection wheel. At this time, the detection unit 4 detects the pressure change of the shock absorber 01. When it is necessary to apply downward pressure to the shock absorber 01, the extended end of the shock absorber 01 extends and drives the test table 322 to move downward, thereby applying downward pressure to the shock absorber 01.

[0050] Preferably, the lifting rod 321 can be a hydraulic rod, electric push rod, or other existing technology.

[0051] In one embodiment, the turntable 1 is circumferentially distributed with a plurality of positioning holes 11 corresponding one-to-one with each test block 311. The turntable 1 is also provided with positioning grooves 12 corresponding to and communicating with each positioning hole 11. The opening of each positioning groove 12 is opened on the top surface of the turntable 1.

[0052] Each test block 311 is equipped with a quick-release component 5, which includes a constraint rod 51 that is vertically rotatably disposed at the bottom of the test block 311 and corresponds to the positioning hole 11. The constraint rod 51 is also provided with a constraint block 52 that is adapted to the positioning groove 12.

[0053] With this design, when the test block 311 needs to be installed, the operator inserts the constraint rod 51 into the corresponding positioning hole 11 until the test block 311 contacts the turntable 1. At this time, the constraint block 52 is located at the opening of the positioning groove 12. Then, the operator rotates the constraint rod 51 to insert the constraint block 52 into the positioning groove 12, thereby constraining the movement of the test block 311. When the constraint block 52 needs to be removed, the operator reverses the constraint rod 51 to remove the constraint block 52 from the positioning groove 12. The disassembly and assembly are convenient.

[0054] In one embodiment, both the test wheel 22 and the test platform 322 are provided with multiple mounting slots 6, and the corresponding ends of each shock absorber 01 are respectively embedded in the mounting slots 6;

[0055] Each mounting slot 6 is provided with a clamping component 7, including two clamping blocks 71 that are slidably disposed in the mounting slot 6. Each clamping block 71 has a guide slope on its top, and the contact surface of the clamping block 71 is adapted to the outer contour of the shock absorber 01. Each mounting slot 6 is provided with two elastic units 72 that are respectively connected to the corresponding clamping block 71, and the other end of each elastic unit 72 is connected to the side wall of the corresponding mounting slot 6, for applying a clamping force to the clamping block 71 in the direction close to the axis of the shock absorber 01.

[0056] With this design, when the shock absorber 01 needs to be installed, the operator inserts the bottom of the shock absorber 01 into the mounting groove 6 of the test wheel 22. At this time, the shock absorber 01 contacts the inclined surface of the corresponding clamping block 71 and is retracted and guided to be coaxial with the mounting groove 6. As the operator continues to apply force, the shock absorber 01 applies a thrust to the corresponding clamping block 71 in a direction away from the axis of the shock absorber 01 until the shock absorber 01 is inserted into the mounting groove 6. At this time, the elastic unit 72 is compressed and the shock absorber 01 is held by the clamping block 71. Then, the lifting rod 321 drives the test platform 322 to move downward and causes the clamping block 71 on the test platform 322 to clamp the top of the shock absorber 01, thereby limiting the shock absorber 01 of different specifications and further increasing its applicability.

[0057] Preferably, the elastic unit 72 can be a spring from the prior art.

[0058] In one embodiment, the turntable 1 is provided with two sliding grooves 13, and a positioning platform 14 is provided between the two sliding grooves 13. The top surface of the positioning platform 14 is flush with the top surface of the turntable 1 and corresponds to the trajectory of the test wheel 22.

[0059] The turntable 1 is also provided with a constraint component 8, including a transmission rod 81 that passes through the positioning table 14 and is rotatably inserted in each slide groove 13. Its surface is provided with two sections of threads with opposite directions. Each slide groove 13 is slidably provided with a clamping plate 82, and each clamping plate 82 is screwed into the corresponding thread on the transmission rod 81. When the transmission rod 81 rotates, the transmission rod 81 is used to drive the two clamping plates 82 to move closer or further away from each other.

[0060] The turntable 1 is also equipped with a power unit 83, which is connected to the transmission rod 81 at the moving end and is used to drive the transmission rod 81 to rotate.

[0061] With this design, when the shock absorber 01 needs to be pressure tested, the turntable 1 rotates to drive the positioning platform 14 to contact the test wheel 22. At this time, each clamping plate 82 is located on both sides of the test wheel 22. The power unit 83 drives the transmission rod 81 to rotate, so that the two clamping plates 82 move closer to each other and clamp the test wheel 22, thereby constraining the rotation of the test wheel 22 and further improving the test stability.

[0062] Preferably, the power unit 83 can be an electric motor from the prior art.

[0063] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0064] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0065] Additionally, "multiple" refers to two or more.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shock absorber testing device, characterized in that, Including turntable (1); Positioning component (2): includes a positioning assembly (21), which is disposed on one side of the turntable (1), and one end of which is rotatably connected to the turntable (1); It also includes a test wheel (22), which is set on the positioning component (21), with its wheel surface in contact with the top surface of the turntable (1), and its two sides are detachably connected to the shock absorber (01); The test component (3) includes a first test component (31) and a second test component (32). The first test component (31) is composed of multiple test blocks (311) evenly distributed on the top surface of the turntable (1) to simulate different road surfaces. The second test component (32) is located on the positioning component (2) and is used to apply vertical downward pressure to the shock absorber (01). The second test component (32) is also provided with a detection unit (4) for testing the load-bearing capacity of the shock absorber (01).

2. The shock absorber testing device according to claim 1, characterized in that: The positioning component (21) includes; A positioning frame (211) is set on one side of the turntable (1), with one end of it rotatably connected to the axis of the turntable (1), and the second test component (32) is set on the positioning frame (211); Two connecting rods (212) are vertically slidably mounted on the positioning frame (211) and connected to both sides of the test wheel (22) respectively.

3. The shock absorber testing device according to claim 2, characterized in that: The second test component (32) includes a lifting rod (321), the fixed end of which is connected to the positioning frame (211); The test bench (322) is connected to the telescopic end of the lifting rod (321), and its bottom surface is detachably connected to the top of the shock absorber (01). The detection unit (4) is set on the test bench (322).

4. The shock absorber testing device according to claim 1, characterized in that: The turntable (1) has a plurality of positioning holes (11) that correspond one-to-one with each of the test blocks (311) evenly distributed in the circumferential direction. Each positioning hole (11) has a positioning groove (12) that communicates with it. The opening of each positioning groove (12) is opened on the top surface of the turntable (1). Each test block (311) is equipped with a quick-release component (5), including: The constraint rod (51) is vertically rotatably mounted at the bottom of the test block (311) and corresponds to the positioning hole (11); A constraint block (52) is disposed on the constraint rod (51) and is adapted to the positioning groove (12).

5. The shock absorber testing device according to claim 3, characterized in that: Both the test wheel (22) and the test platform (322) are provided with multiple mounting slots (6), and the corresponding ends of each shock absorber (01) are respectively embedded in the corresponding mounting slots (6); Each of the mounting slots (6) is provided with a clamping component (7), the clamping component (7) includes two clamping blocks (71) that are slidably disposed in the mounting slot (6), and their contact surfaces are adapted to the outer contour of the shock absorber (01); and each clamping block (71) is also provided with an elastic unit (72) that provides centripetal preload to the clamping block (71) between it and the side wall of the corresponding mounting slot (6).

6. The shock absorber testing device according to claim 1, characterized in that: The turntable (1) is provided with two sections of sliding groove (13), and a positioning platform (14) is provided between the two sections of sliding groove (13). The top surface of the positioning platform (14) corresponds to the trajectory of the test wheel (22). The turntable (1) is also provided with a constraint component (8), including: The transmission rod (81) passes through the positioning table (14) and is rotatably inserted into each of the slide grooves (13), and its surface is provided with two sections of threads with opposite directions of rotation; Two clamping plates (82) are slidably disposed in the corresponding slide grooves (13) and screwed into the corresponding threads on the transmission rod (81); A power unit (83) is mounted on the turntable (1) and its moving end is connected to the transmission rod (81).

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