Electric vehicle spring steel plate testing device

Abstract

The invention provides an electric vehicle spring steel plate testing device, which comprises a test board, a moving mechanism, a clamp mechanism and a pressure applying mechanism, and is characterized in that the test board is vertically arranged relative to the ground; the moving mechanism is arranged on the test board; the clamp mechanism comprises a base table and two clamp assemblies, and the base table is connected with the moving mechanism; two guide grooves are symmetrically formed in the base table, and the two clamp assemblies are connected with the two guide grooves in a sliding mode. The pressure applying mechanism comprises a connecting seat, a rod body, a limiting rod and a driving assembly, and the connecting seat is installed on the test bench; a through groove is formed in one end of the rod body, and the connecting base penetrates through the through groove. According to the electric vehicle spring steel plate testing device, based on the lever principle, the position of the to-be-tested spring steel plate is changed at the same time, so that the purpose of continuously applying variable acting force to the spring steel plate is achieved, the variable acting force borne by the spring steel plate during use is simulated, the safety of the testing process is high, and the testing efficiency is high. The display device can be used for displaying the spring steel plate.

Description

Technical Field

[0001] The present application relates to the technical field of spring steel plates, and in particular to a testing device for spring steel plates of electric vehicles. Background Art

[0002] Spring steel plates are mainly used in suspension systems of electric vehicles to support vehicle weight, absorb road impact, and maintain vehicle stability. Their performance directly affects the vehicle's driving comfort and handling. Spring steel plates are generally made of high-strength steel, such as alloy steel or high-carbon steel. These materials have good elasticity and fatigue strength to meet the vehicle's movement needs under different road conditions.

[0003] The testing of spring steel plates generally includes tensile, fatigue, impact and hardness testing. At present, mechanical equipment is generally used to impact the spring steel plates during the testing process. However, the above-mentioned testing method is too far from the impact force that the spring steel plates are subjected to during use, and the testing process is somewhat dangerous, which limits the scope of use of the testing device. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the above-mentioned technology at least to some extent.

[0005] To this end, one purpose of the present application is to propose an electric vehicle spring steel plate testing device, which is based on the principle of a lever and simultaneously changes the position of the spring steel plate to be tested, so as to achieve the purpose of continuously applying a variable force to the spring steel plate, thereby simulating the variable force that the spring steel plate is subjected to when in use, and the testing process is highly safe and can be used for the display of the spring steel plate.

[0006] To achieve the above-mentioned objectives, the first aspect of the present application proposes an electric vehicle spring steel plate testing device, comprising: a test bench, a moving mechanism, a clamp mechanism and a pressure mechanism, wherein the test bench is placed vertically relative to the ground; the moving mechanism is arranged on the test bench; the clamp mechanism comprises a base and two clamp assemblies, wherein the base is connected to the moving mechanism; two guide grooves are symmetrically provided on the base, and the two clamp assemblies are slidably connected to the two guide grooves; the pressure mechanism comprises a connecting seat, a rod body, a limiting rod and a driving assembly, wherein the connecting seat is installed on the test bench; a through groove is provided at one end of the rod body, the connecting seat passes through the through groove, and the rod body is movably connected to the connecting seat; the limiting rod is arranged on the test bench; the driving assembly is slidably connected to the limiting rod, and the driving assembly is pivotally connected to the other end of the rod body.

[0007] In addition, the electric vehicle spring steel plate testing device proposed in the above embodiment of the present application may also have the following additional technical features:

[0008] In one embodiment of the present application, the clamp assembly includes a base plate, a placement slot, a hinge and two guide rods, wherein the base plate is slidably connected to the base; the placement slot is arranged above the base plate, and one side and the upper part of the placement slot are arranged in an open structure; the hinge is arranged between the base plate and the placement slot; one end of the two guide rods is connected to the base plate, and the other ends of the two guide rods extend to the inside of the corresponding guide slots respectively.

[0009] In one embodiment of the present application, an inclined portion is provided at the bottom of the placement groove.

[0010] In one embodiment of the present application, a connecting plate is provided at the other end of the two guide rods, and two rollers are symmetrically rotatably connected to the two sides of the connecting plate, and the rollers are rollingly connected to the bottom of the base.

[0011] In one embodiment of the present application, a fixing pin is provided on the placement slot.

[0012] In one embodiment of the present application, the clamp mechanism also includes a positioning assembly, which includes a telescopic rod, a first fixed plate, two rods and a second fixed plate, wherein one end of the telescopic rod is connected to the base, and the other end of the telescopic rod is connected to the first fixed plate; the first fixed plate is located below the spring steel plate to be tested; the two rods are respectively connected to the first fixed plate, and the two rods are respectively arranged in a U-shaped structure, and the two rods respectively pass through the second fixed plate, and a fixing member is provided on the rod, and the rod extends to the top of the second fixed plate; the second fixed plate is located above the spring steel plate to be tested.

[0013] In one embodiment of the present application, the driving assembly includes a driving motor, a wheel body, a connecting rod and a ring, wherein the driving motor is installed on the test bench; the wheel body is connected to the output shaft of the driving motor; one end of the connecting rod is pivotally connected to the wheel body; the ring is sleeved on the outside of the limit rod, the ring is slidably connected to the limit rod, and the other end of the connecting rod is pivotally connected to the ring.

[0014] In one embodiment of the present application, the moving mechanism includes a first support plate, two second support plates, two bidirectional lead screws, a first motor and a transmission component, wherein the first support plate and the two second support plates are respectively arranged on the test bench; one end of the two bidirectional lead screws are respectively rotatably connected to the first support plate, and the other end of the two bidirectional lead screws are respectively rotatably connected to the corresponding second support plate;

[0015] The first motor is mounted on the test bench, the output shaft of the first motor is connected to the transmission component, one end of the two bidirectional lead screws passes through the first support plate, and the transmission component is connected to one end of the two bidirectional lead screws.

[0016] Compared with the prior art, the present application has the following beneficial effects: the electric vehicle spring steel plate testing device of the embodiment of the present application is based on the principle of a lever, and the moving mechanism continuously changes the position of the spring steel plate to be tested to change the length of the resistance arm, thereby achieving the purpose of continuously applying a variable force to the spring steel plate, thereby simulating the variable force caused by road bumps when the spring steel plate is in use. The above-mentioned testing process is highly safe and can be used as a demonstration of the spring steel plate, thereby expanding the scope of use of the present testing device.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 This is a schematic structural diagram of an electric vehicle spring steel plate testing device according to an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of a pressure mechanism of a spring steel plate testing device for an electric vehicle according to an embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of a fixture mechanism of an electric vehicle spring steel plate testing device according to an embodiment of the present application;

[0022] Figure 4 This is a schematic cross-sectional structural diagram of a fixture mechanism of an electric vehicle spring steel plate testing device according to an embodiment of the present application;

[0023] Figure 5 This is a schematic diagram of the connection structure of the connecting plate and the roller of the electric vehicle spring steel plate testing device according to one embodiment of the present application;

[0024] Figure 6 This is a schematic diagram of the connection structure between the positioning assembly and the base of the electric vehicle spring steel plate testing device according to one embodiment of the present application;

[0025] Figure 7 This is a schematic diagram of a positioning assembly of an electric vehicle spring steel plate testing device according to an embodiment of the present application;

[0026] Figure 8Schematic diagram of the moving mechanism of an electric vehicle spring steel plate testing device according to one embodiment of the present application.

[0027] 1. Test bench; 2. Moving mechanism; 21. First support plate; 22. Second support plate; 23. Bidirectional lead screw; 24. First motor; 25. Transmission component; 3. Clamp mechanism; 31. Base; 32. Guide groove; 33. Clamp assembly; 331. Base plate; 332. Placement groove; 333. Hinge; 334. Guide rod; 335. Inclined portion; 336. Connecting plate; 337. Roller; 338. Fixing pin; 34. Positioning assembly; 341. Telescopic rod; 342. First fixed plate; 343. Rod; 344. Second fixed plate; 4. Pressurizing mechanism; 41. Connecting seat; 42. Rod body; 420. Through groove; 43. Limiting rod; 44. Driving assembly; 441. Driving motor; 442. Wheel body; 443. Connecting rod; 444. Ring. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0029] The following describes an electric vehicle spring steel plate testing device according to an embodiment of the present application with reference to the accompanying drawings.

[0030] like Figure 1-Figure 8 As shown, the electric vehicle spring steel plate testing device of the embodiment of the present application may include: a test bench 1, a moving mechanism 2, a clamping mechanism 3 and a pressure mechanism 4.

[0031] The test bench 1 is placed vertically relative to the ground.

[0032] It should be noted that the test bench 1 described in this embodiment is placed vertically relative to the ground through legs, and the legs can reduce the contact area between the test bench 1 and the ground, thereby increasing the pressure between the legs and the test bench 1 to ensure the stability of the device during use.

[0033] The moving mechanism 2 is disposed on the test bench 1 , and is used to drive the clamp mechanism 3 and the spring steel plate to be tested to move back and forth below the pressure mechanism 4 .

[0034] The clamp mechanism 3 includes a base 31 and two clamp assemblies 33 .

[0035] The base 31 is connected to the moving mechanism 2; two guide grooves 32 are symmetrically provided on the base 31, and two clamp assemblies 33 are slidably connected to the two guide grooves 32, and the clamp assemblies 33 are used to limit the two ends of the spring steel plate to be tested.

[0036] The pressure-applying mechanism 4 includes a connecting seat 41 , a rod body 42 , a limiting rod 43 and a driving assembly 44 .

[0037] The connecting seat 41 is installed on the test bench 1 , a through slot 420 is formed at one end of the rod body 42 , the connecting seat 41 passes through the through slot 420 , and the rod body 42 is used to apply a force to the spring steel plate to be tested.

[0038] The rod body 42 is movably connected to the connecting seat 41 .

[0039] It is understandable that, in the process of the driving assembly 44 driving the rod body 42 to move up and down, one end of the rod body 42 is restrained by the connecting seat 41 , and the connecting seat 41 can move inside the through slot 420 .

[0040] The limiting rod 43 is arranged on the test bench 1 , the driving assembly 44 is slidably connected to the limiting rod 43 , the driving assembly 44 is pivotally connected to the other end of the rod body 42 , and the driving assembly 44 is used to drive the other end of the rod body 42 to move up and down.

[0041] In an embodiment of the present application, an external controller is installed on the test bench 1, and the moving mechanism 2 and the pressure mechanism 4 are respectively connected to the external controller. Relevant technicians (for example, workers) can input preset data into the external controller to control the operating frequency of the moving mechanism 2 and the pressure mechanism 4.

[0042] It should be noted that the clamp assembly 33 described in this embodiment is equipped with a distance sensor, which can monitor the distance between the two clamp assemblies 33 during the spring steel plate test. The distance sensor is connected to an external controller to test the yield strength of the spring steel plate.

[0043] Specifically, relevant technicians (eg, workers) test a batch of spring steel plates by sampling before they leave the factory or during a display exhibition.

[0044] First, the two ends of the spring steel plate to be tested are placed inside the two clamp assemblies 33 respectively, and the two clamp assemblies 33 are pushed so that the spring steel plate to be tested is located directly below the rod body 42 .

[0045] The moving mechanism 2 drives the base 31 and the spring steel plate to be tested placed thereon to move a preset distance. At the same time, the driving assembly 44 drives the other end of the rod body 42 to move up and down. One end of the rod body 42 is restricted by the connecting seat 41. The rod body 42 applies a force to the spring steel plate, and the spring steel plate is deformed. The two ends of the spring steel plate push the clamp assembly 33 to move away from each other. The clamp assembly 33 moves along the guide groove 32. After the rod body 42 moves to the lowest end, the rod body 42 is reset, the spring steel plate retracts, and the two clamp assemblies 33 are reset.

[0046] During the test, the connecting seat 41 can be regarded as a fulcrum in the lever principle. The spring steel plate to be tested moves a preset distance. Based on the lever principle, its resistance arm changes continuously, while the power arm remains unchanged.

[0047] Therefore, the rod body 42 can apply a variable force to the spring steel plate to be tested, thereby simulating the variable force caused by road bumps when the spring steel plate is in use. The above test process has high safety and can be used as a demonstration of the spring steel plate, thereby expanding the scope of use of the present test device.

[0048] In one embodiment of the present application, Figure 3 As shown, the clamp assembly 33 includes a base plate 331 , a placement slot 332 , a hinge 333 and two guide rods 334 .

[0049] The base plate 331 is slidably connected to the base 31 , and the placement groove 332 is arranged above the base plate 331 . One side and the upper part of the placement groove 332 are arranged in an open structure.

[0050] It should be noted that one side and the upper part of the placement groove 332 are arranged in an open structure, which can facilitate workers to place the spring steel plate to be tested into the placement groove 332.

[0051] The hinge 333 is disposed between the base plate 331 and the placement groove 332 . One ends of the two guide rods 334 are connected to the base plate 331 , and the other ends of the two guide rods 334 extend to the inside of the corresponding guide grooves 32 .

[0052] Specifically, when the rod body 42 applies a force to the spring steel plate, the spring steel plate is first in point contact with the rod body 42, and the spring steel plate is tilted by the force, and then the placement slot 332 and the base plate 331 rotate a certain angle, and then the rod body 42 and the spring steel plate are in line contact, and the rod body 42 applies a force to the spring steel plate.

[0053] In one embodiment of the present application, Figure 4 As shown, an inclined portion 335 is provided at the bottom of the placement groove 332 .

[0054] It can be understood that, during the downward bending of the spring steel plate, the two ends of the spring steel plate are restricted by the placement groove 332, which can push the clamp assembly 33 to move. During the resetting of the spring steel plate, due to the existence of the inclined portion 335, the two ends of the spring steel plate can pull the clamp assembly 33 to move, thereby making the two clamp assemblies 33 move synchronously.

[0055] In one embodiment of the present application, Figure 5 As shown, a connecting plate 336 is disposed at the other end of the two guide rods 334 , and two rollers 337 are symmetrically rotatably connected to the two sides of the connecting plate 336 , and the rollers 337 are rollingly connected to the bottom of the base 31 .

[0056] Specifically, during the movement of the clamp assembly 33 , the clamp assembly 33 drives the connecting plate 336 to move, and the connecting plate 336 drives the roller 337 to roll along the bottom of the base 31 , thereby reducing the friction between the clamp assembly 33 and the base 31 .

[0057] In one embodiment of the present application, Figure 6 As shown, a fixing pin 338 is provided on the placement slot 332 .

[0058] It should be noted that the fixing pin 338 can be inserted into the annular fixing rings at both ends of the spring steel plate.

[0059] It is understandable that the fixing pin 338 is provided to fix the spring steel plate, thereby preventing the spring steel plate from being separated from the clamp assembly 33 during the test.

[0060] In one embodiment of the present application, Figure 6 As shown, the clamp mechanism 3 further includes a positioning assembly 34 , and the positioning assembly 34 includes a telescopic rod 341 , a first fixing plate 342 , two rods 343 and a second fixing plate 344 .

[0061] Among them, one end of the telescopic rod 341 is connected to the base 31, and the other end of the telescopic rod 341 is connected to the first fixed plate 342, the first fixed plate 342 is located below the spring steel plate to be tested, and the two rods 343 are respectively connected to the first fixed plate 342, and the two rods 343 are arranged in a U-shaped structure. The two rods 343 respectively pass through the second fixed plate 344, and a fixing part is provided on the rod 343. The rod 343 extends to the top of the second fixed plate 344, and the second fixed plate 344 is located above the spring steel plate to be tested.

[0062] Specifically, after the spring steel plate to be tested is placed in the placement slots 332 of the two fixture assemblies 33 , the second fixing plate 344 can be sleeved on the outside of the two rods 343 , and the second fixing plate 344 can be limited by fixing members (eg bolts).

[0063] It is understandable that the positioning assembly 34 can simulate the use state of the spring steel plate on the tricycle. The spring steel plate used on the tricycle is a plurality of spring steel plates superimposed and fixed on the axle by the U-shaped rod 343.

[0064] It should be noted that when the rod body 42 applies a force to the spring steel plate, the rod body 42 is placed between the two rods 343 , and the rods 343 can play a limiting role, thereby preventing slippage between the rod body 42 and the spring steel plate.

[0065] In addition, fixing the spring steel plate in the positioning assembly 34 can ensure that the spring steel plate is always located directly below the rod body 42 after being reset.

[0066] In one embodiment of the present application, Figure 2 As shown, the driving assembly 44 includes a driving motor 441 , a wheel body 442 , a connecting rod 443 and a collar 444 .

[0067] Among them, the driving motor 441 is installed on the test bench 1, the wheel body 442 is connected to the output shaft of the driving motor 441, one end of the connecting rod 443 is pivotally connected to the wheel body 442, the ring 444 is sleeved on the outside of the limiting rod 43, the ring 444 is slidingly connected to the limiting rod 43, and the other end of the connecting rod 443 is pivotally connected to the ring 444.

[0068] Specifically, the driving motor 441 drives the wheel body 442 to rotate, and the wheel body 442 pushes the collar 444 to slide on the limiting rod 43, thereby driving one end of the rod body 42 to move up and down to apply a force to the spring steel plate.

[0069] In one embodiment of the present application, Figure 8 As shown, the moving mechanism 2 includes a first support plate 21 , two second support plates 22 , two bidirectional lead screws 23 , a first motor 24 and a transmission component 25 .

[0070] Among them, the first support plate 21 and the two second support plates 22 are respectively arranged on the test bench 1, one end of the two bidirectional lead screws 23 are respectively rotatably connected to the first support plate 21, and the other ends of the two bidirectional lead screws 23 are respectively rotatably connected to the corresponding second support plates 22, the first motor 24 is installed on the test bench 1, the output shaft of the first motor 24 is connected to the transmission component 25, one end of the two bidirectional lead screws 23 passes through the first support plate 21, and the transmission component 25 is connected to one end of the two bidirectional lead screws 23.

[0071] It should be noted that the first motor 24 described in this embodiment may be an angle motor, and the first motor 24 rotates at a preset angle at regular intervals.

[0072] Specifically, the first motor 24 drives the bidirectional screw 23 to rotate through the transmission component 25. The bidirectional screw 23 is threadedly connected to the base 31, thereby driving the spring steel plate to move a distance and then pause. After the rod body 42 applies a force to the spring steel plate, the first motor 24 drives the bidirectional screw 23 to rotate again, and the spring steel plate moves a distance again. This is repeated to achieve multiple tests on the spring steel plate.

[0073] In summary, the electric vehicle spring steel plate testing device of the embodiment of the present application is based on the principle of lever, and the moving mechanism continuously changes the position of the spring steel plate to be tested to change the length of the resistance arm, thereby achieving the purpose of continuously applying a variable force to the spring steel plate, thereby simulating the variable force caused by road bumps when the spring steel plate is in use. The above-mentioned testing process is relatively safe and can be used as a demonstration of the spring steel plate, thereby expanding the scope of use of the present testing device.

[0074] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0076] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. An electric vehicle spring steel plate testing device, characterized in that: include: A test bench, a moving mechanism, a fixture mechanism and a pressure mechanism, wherein: The test bench is placed vertically relative to the ground; The moving mechanism is arranged on the test bench; The fixture mechanism includes a base and two fixture components, wherein: The base is connected to the moving mechanism; Two guide grooves are symmetrically arranged on the base, and the two clamp assemblies are slidably connected to the two guide grooves; The pressure mechanism includes a connecting seat, a rod body, a limiting rod and a driving assembly, wherein: The connecting seat is installed on the test bench; A through slot is formed at one end of the rod body, the connecting seat passes through the through slot, and the rod body is movably connected to the connecting seat; The limiting rod is arranged on the test bench; The driving assembly is slidably connected to the limiting rod, and the driving assembly is pivotally connected to the other end of the rod body.

2. The electric vehicle spring steel plate testing device according to claim 1, characterized in that: The fixture assembly includes a base plate, a placement slot, a hinge and two guide rods, wherein: The base plate is slidably connected to the base platform; The placement groove is arranged above the substrate, and one side and the upper part of the placement groove are arranged in an open structure; The hinge is arranged between the base plate and the placement groove; One ends of the two guide rods are connected to the base plate, and the other ends of the two guide rods extend to the inside of the corresponding guide grooves respectively.

3. The electric vehicle spring steel plate testing device according to claim 2, characterized in that: The bottom of the placement groove is provided with an inclined portion.

4. The electric vehicle spring steel plate testing device according to claim 2, characterized in that: The other ends of the two guide rods are provided with connecting plates, and two rollers are symmetrically rotatably connected to the two sides of the connecting plate, and the rollers are rollingly connected to the bottom of the base.

5. The electric vehicle spring steel plate testing device according to claim 2, characterized in that: A fixing pin is arranged on the placement groove.

6. The electric vehicle spring steel plate testing device according to claim 1, characterized in that: The clamp mechanism further includes a positioning assembly, which includes a telescopic rod, a first fixing plate, two rods and a second fixing plate, wherein: One end of the telescopic rod is connected to the base, and the other end of the telescopic rod is connected to the first fixing plate; The first fixing plate is located below the spring steel plate to be tested; The two rods are respectively connected to the first fixing plate, the two rods are respectively arranged in a U-shaped structure, the two rods respectively penetrate the second fixing plate, the rods are provided with fixing members, and the rods extend to the top of the second fixing plate; The second fixing plate is located above the spring steel plate to be tested.

7. The electric vehicle spring steel plate testing device according to claim 1, characterized in that: The driving assembly includes a driving motor, a wheel body, a connecting rod and a collar, wherein: The driving motor is installed on the test bench; The wheel body is connected to the output shaft of the driving motor; One end of the connecting rod is pivotally connected to the wheel body; The collar is sleeved on the outer side of the limiting rod, the collar is slidably connected to the limiting rod, and the other end of the connecting rod is pivotally connected to the collar.

8. The electric vehicle spring steel plate testing device according to claim 1, characterized in that: The moving mechanism includes a first support plate, two second support plates, two bidirectional lead screws, a first motor and a transmission component, wherein: The first support plate and the two second support plates are respectively arranged on the test bench; One end of the two bidirectional lead screws is rotatably connected to the first support plate respectively, and the other end of the two bidirectional lead screws is rotatably connected to the corresponding second support plate respectively; The first motor is mounted on the test bench, the output shaft of the first motor is connected to the transmission component, one end of the two bidirectional lead screws passes through the first support plate, and the transmission component is connected to one end of the two bidirectional lead screws.

Images