Electric drive shock absorption testing device

Abstract

The application discloses an electric drive damping test device, and relates to the technical field of damping test, which comprises a test box body formed with an assembly space; a fixing mechanism and a first driving mechanism are arranged in the assembly space, the first driving mechanism drives the fixing mechanism to lift, and the fixing mechanism fixes a to-be-tested piece; a test mechanism is used for detecting parameter information of the to-be-tested piece; a vibrator is fixed to the test box body, and a controller is configured to determine damping performance of the to-be-tested piece according to the parameter information. The fixing mechanism is arranged to fix the to-be-tested piece, so that the stability of the to-be-tested piece during the test process is improved. The test mechanism is assembled with the to-be-tested piece to detect various parameter information of the to-be-tested piece, so that various indexes of the to-be-tested piece can be comprehensively detected, the comprehensiveness of the electric drive damping test device is improved, and the damping performance of the to-be-tested piece is determined according to the various detection results, so that the accuracy of the test result is improved.

Description

Technical Field

[0001] This invention relates to the field of vibration damping testing technology, and in particular to an electrically driven vibration damping testing device. Background Technology

[0002] In related technologies, electric vehicles primarily rely on electric drives for power. Once installed in a vehicle, the electric drive is susceptible to vibration and damage due to vehicle bumps. Furthermore, the disassembly and assembly process is cumbersome and difficult to repair. Currently, the shock absorption performance of the electric drive is typically tested before assembly. Traditional testing devices use a single fixing method to secure the electric drive, resulting in poor stability during testing, inaccurate data results, and limited testing parameters, making it difficult to guarantee the quality of the electric drive. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide an electric drive vibration damping testing device that improves the stability of the test piece during the testing process, comprehensively detects multiple indicators of the test piece, and improves the accuracy of the test results.

[0004] According to an embodiment of the present invention, an electric vibration damping testing device includes: a test housing having an assembly space; a fixing mechanism and a first driving mechanism, both disposed within the assembly space, the first driving mechanism being connected to the fixing mechanism to drive the fixing mechanism to move up and down, the fixing mechanism being used to fix the test piece; a testing mechanism, at least a portion of which is disposed within the assembly space, the testing mechanism being located below the fixing mechanism, the testing mechanism being used to assemble with the test piece to detect parameter information of the test piece; a vibrator and a controller, the vibrator being fixed to the test housing, the controller being communicatively connected to the testing mechanism, the controller being configured to determine the vibration damping performance of the test piece based on the parameter information.

[0005] According to the electric drive vibration damping testing device of the present invention, by setting a fixing mechanism to fix the test piece, the stability of the test piece during the testing process can be improved. Furthermore, by assembling the testing mechanism with the test piece to detect multiple parameter information of the test piece, multiple indicators of the test piece can be detected more comprehensively, thereby improving the comprehensiveness of the electric drive vibration damping testing device. This allows the controller to determine the vibration damping performance of the test piece based on multiple detection results, which is beneficial to improving the accuracy of the test results.

[0006] In some embodiments of the present invention, the electric drive vibration damping test device further includes: a temperature regulating mechanism and a temperature sensor. The temperature regulating mechanism is fixed in the test chamber and located in the assembly space. The temperature sensor is used to detect the temperature in the assembly space. Both the temperature regulating mechanism and the temperature sensor are communicatively connected to a controller. The controller is also configured to control the temperature regulating mechanism to work according to the detection information of the temperature sensor in order to regulate the temperature in the assembly space.

[0007] In some embodiments of the present invention, the temperature regulating mechanism includes a heater and a cooler.

[0008] In some embodiments of the present invention, the vibrator is located outside the test chamber and is fixed to the bottom wall of the test chamber.

[0009] In some embodiments of the present invention, the fixing mechanism includes: a lifting block and two clamping blocks, a first driving mechanism connected to the lifting block, the two clamping blocks being opposite to each other and spaced apart along a first direction, both clamping blocks being disposed on the lifting block, and both clamping blocks being adjustable in position along the first direction to clamp or release the test piece, the first direction being perpendicular to the height direction of the test chamber.

[0010] In some embodiments of the present invention, the fixing mechanism further includes: an adjusting member, two clamping blocks are slidably disposed on the lifting block along a first direction, the adjusting member is connected to both clamping blocks, and the adjusting member is used to drive the two clamping blocks to move closer or further apart from each other along the first direction.

[0011] In some embodiments of the present invention, each clamping block includes a clamping part and an adjusting arm, the clamping part and the adjusting arm are fixedly connected, and the adjusting member is connected to the adjusting arm of the two clamping blocks.

[0012] In some embodiments of the present invention, the adjusting member is a screw, and the adjusting arm of each clamping block is formed with a threaded hole, and the screw passes through the threaded holes of the two clamping blocks.

[0013] In some embodiments of the present invention, each clamping block includes two adjusting arms. The two adjusting arms of each clamping block are located on both sides of the lifting block along the second direction. Guide grooves extending along the first direction are formed on both sides of the lifting block along the second direction. The adjusting arms have limiting holes corresponding to the guide grooves. The fixing mechanism also includes multiple limiting sliders. The multiple limiting sliders are respectively inserted through the corresponding limiting holes and assembled in the corresponding guide grooves. The first direction, the second direction and the height direction of the test box are perpendicular to each other.

[0014] In some embodiments of the present invention, the electric drive vibration damping test device further includes: a guide rod, which is disposed in the assembly space and extends along the height direction of the test box, and the lifting block has a guide hole, through which the guide rod passes.

[0015] In some embodiments of the present invention, the testing mechanism includes: a lifting shaft, a fixing member, and a parameter detection sensor. The lifting shaft, the fixing member, and the parameter detection sensor are all disposed in the assembly space. The parameter detection sensor is fixed to the lifting shaft, and the fixing member is adapted to be fixed to the lifting shaft. The fixing member has an assembly hole for assembling the test piece.

[0016] In some embodiments of the present invention, the parameter detection sensor includes a pressure sensor and a speed sensor, with the pressure sensor fixed to the end face of the lifting shaft and the speed sensor fixed to the side wall of the lifting shaft.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

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

[0019] Figure 1 This is an assembly schematic diagram of the electric drive vibration damping test device according to an embodiment of the present invention;

[0020] Figure 2 This is an assembly diagram of the fixing mechanism, the first driving mechanism, and the testing mechanism according to an embodiment of the present invention;

[0021] Figure 3 yes Figure 2 Enlarged view of point A;

[0022] Figure 4 yes Figure 2 Enlarged view of point B;

[0023] Figure 5 This is a partial exploded view of the test chamber according to an embodiment of the present invention;

[0024] Figure 6 yes Figure 5 Enlarged view of point C;

[0025] Figure 7 This is an assembly diagram of the test chamber, test mechanism, temperature regulation mechanism, vibrator and controller according to an embodiment of the present invention;

[0026] Figure 8 yes Figure 7 Enlarged view of point D.

[0027] Figure label:

[0028] Electric drive vibration damping test device 100;

[0029] Test chamber 1;

[0030] Assembly space 11; clasp 12; mounting base 13;

[0031] Box body 14; sound insulation cotton 141; first magnetic strip 142;

[0032] Box door 15; glass 151; second magnetic strip 152; handle 153;

[0033] Base 16; Foot pads 161;

[0034] Fixed mechanism 2;

[0035] Lifting block 21; guide groove 211; guide hole 212;

[0036] Clamping block 22; Clamping part 221; Suspension bolt 2211; Adjusting arm 222;

[0037] Threaded hole 2221; Limiting hole 2222;

[0038] Adjusting component 23;

[0039] Screw 24; Fastening nut 241;

[0040] Limit slider 25;

[0041] First drive mechanism 3;

[0042] Testing facility 4;

[0043] Lifting shaft 41; Fixing component 42;

[0044] Assembly hole 421; Crushing groove 422; Rubber ring 423;

[0045] Parameter detection sensor 43;

[0046] Pressure sensor 431; speed sensor 432;

[0047] Fastener 44;

[0048] First end 441; Second end 442; First clamping plate 443; Second clamping plate 444; Adjusting column 445;

[0049] Vibrator 5;

[0050] Controller 6;

[0051] Temperature regulation mechanism 7;

[0052] Heater 71; Cooler 72;

[0053] Temperature sensor 8;

[0054] Guide rod 9. Detailed Implementation

[0055] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0056] The following is for reference. Figures 1-8 This application describes an electric drive vibration damping test apparatus 100 according to an embodiment of the present invention. The electric drive vibration damping test apparatus 100 is used to measure the vibration damping performance of a test piece. The test piece is an electric drive as an example for this description.

[0057] like Figure 1 As shown, the electric vibration damping testing device 100 according to an embodiment of the present invention includes: a test housing 1, the test housing 1 having an assembly space 11; a fixing mechanism 2 and a first driving mechanism 3, both the fixing mechanism 2 and the first driving mechanism 3 being disposed within the assembly space 11, the first driving mechanism 3 being connected to the fixing mechanism 2 to drive the fixing mechanism 2 to rise and fall, the fixing mechanism 2 being used to fix the test piece; a testing mechanism 4, at least a portion of the testing mechanism 4 being disposed within the assembly space 11, the testing mechanism 4 being located below the fixing mechanism 2, the testing mechanism 4 being used to assemble with the test piece to detect the parameter information of the test piece; a vibrator 5 and a controller 6, the vibrator 5 being fixed to the test housing 1, the controller 6 being communicatively connected to the testing mechanism 4, the controller 6 being configured to determine the vibration damping performance of the test piece based on the parameter information.

[0058] The electric drive vibration damping testing device 100 includes a test housing 1, a fixing mechanism 2, a first drive mechanism 3, a testing mechanism 4, a vibrator 5, and a controller 6. The test housing 1 forms an assembly space 11, which provides assembly positions for some components of the electric drive vibration damping testing device 100 and the test piece, allowing the test piece to be tested within the assembly space 11. Both the fixing mechanism 2 and the first drive mechanism 3 are located within the assembly space 11. In some embodiments of this application, the first drive mechanism 3 is bolted to the assembly space 11. In some embodiments of this application, the first drive mechanism 3 is riveted to the assembly space 11.

[0059] The first drive mechanism 3 and the fixing mechanism 2 are connected so that the fixing mechanism 2 can be disposed within the assembly space 11 via the first drive mechanism 3. In some embodiments of this application, the first drive mechanism 3 can be configured as a drive cylinder. In some embodiments of this application, the first drive mechanism 3 can be configured as a drive motor. The first drive mechanism 3 and the fixing mechanism 2 can be connected by bolts so that the first drive mechanism 3 can drive the fixing mechanism 2 to rise and fall. The fixing mechanism 2 is used to fix the test piece; for example, the fixing mechanism 2 can fix the test piece by means of suspension, clamping, etc. By connecting the first drive mechanism 3 and the fixing mechanism 2, the first drive mechanism 3 can drive the fixing mechanism 2 to rise and fall, thereby driving the fixing mechanism 2 to a suitable position, facilitating the assembly of the test piece onto the fixing mechanism 2, improving the positional stability of the test piece, and thus improving the reliability of the test results for the shock absorption performance of the test piece.

[0060] At least a portion of the testing mechanism 4 is disposed within the assembly space 11. In some embodiments of this application, a portion of the testing mechanism 4 is disposed within the assembly space 11. In some embodiments of this application, the entire testing mechanism 4 is disposed within the assembly space 11. Along the height direction of the vibration damping testing device, i.e. Figure 1 In the Z direction, the testing mechanism 4 is located below the fixed mechanism 2, facilitating the assembly of one end of the test piece with the fixed mechanism 2 and the other end with the testing mechanism 4, thus assembling the test piece between the fixed mechanism 2 and the testing mechanism 4. The testing mechanism 4 and the test piece are assembled together so that the testing mechanism 4 can detect the parameter information of the test piece, thereby enabling the controller 6 to determine the vibration damping performance of the test piece based on the parameter information.

[0061] The vibrator 5 is fixed to the test chamber 1. In some embodiments of this application, the vibrator 5 can be fixed to the bottom wall of the outer side of the test chamber 1. In some embodiments of this application, the vibrator 5 can be fixed at any position within the assembly space 11 of the test chamber 1. In some embodiments of this application, the vibrator 5 and the test chamber 1 can be assembled, but are not limited to, by snap-fit, screw-fit, or other methods. This application uses the example of the vibrator 5 being snap-fitted to the bottom wall of the outer side of the test chamber 1. This arrangement allows for a reasonable arrangement of the vibrator 5, and when the vibrator 5 vibrates, it can reliably simulate the bumpy conditions of a vehicle, thus allowing the test piece to be tested under conditions closest to actual operating conditions, which is beneficial for the controller 6 to reliably determine the shock absorption performance of the test piece.

[0062] Specifically, the electric drive vibration damping test device 100 may include a fixed base 13 and multiple clamps 12. As some embodiments of this application, the fixed base 13 and the multiple clamps 12 may be integrally formed. The vibrator 5 can be engaged with the fixed base 13 by the clamps 12. The multiple clamps 12 limit the position of the vibrator 5 along the circumference of the vibrator 5, thereby improving the positional stability of the vibrator 5 and reducing the risk of the vibrator 5 falling off the fixed base 13 due to vibration.

[0063] As some embodiments of this application, the mounting base 13 can be fixed to the bottom wall of the test chamber 1 by bolts, and the vibrator 5 is engaged with the mounting base 13 by multiple claws 12, thereby achieving the effect of fixing the vibrator 5 to the bottom wall of the test chamber 1. By vibrating the vibrator 5 on the bottom wall of the test chamber 1, the bumpy conditions of a vehicle driving can be simulated. The first drive mechanism 3 is fixed in the assembly space 11 by bolts, and the fixing mechanism 2 is connected to the first drive mechanism 3 by bolts, so that the fixing mechanism 2 is located in the assembly space 11 through the first drive mechanism 3.

[0064] Since the fixing mechanism 2 is used to fix the test piece, and the first driving mechanism 3 and the fixing mechanism 2 are connected by bolts, the first driving mechanism 3 can drive the fixing mechanism 2 to rise and fall, thereby driving the test piece to move to a suitable height within the assembly space 11, facilitating the assembly of the test piece onto the fixing mechanism 2. The testing mechanism 4 is located below the fixing mechanism 2, with one end of the test piece assembled to the fixing mechanism 2 and the other end assembled to the testing mechanism 4, so that the testing mechanism 4 can detect the parameter information of the test piece.

[0065] The controller 6 and the testing unit 4 are connected in communication, for example, the controller 6 and the testing unit 4 may be connected in communication via Bluetooth or WLAN (wireless local area network) so that the controller 6 can obtain the parameter information measured by the testing unit 4, thereby enabling the controller 6 to determine the shock absorption performance of the test piece based on the parameter information.

[0066] Therefore, by setting the fixing mechanism 2 to fix the test piece, the stability of the test piece during the test can be improved. Furthermore, by assembling the test mechanism 4 with the test piece to detect various parameter information of the test piece (such as pressure parameters, speed parameters, etc.), multiple indicators of the test piece can be detected more comprehensively, improving the comprehensiveness of the test by the electric drive vibration damping test device 100. This allows the controller 6 to determine the vibration damping performance of the test piece based on multiple test results, which is beneficial to improving the accuracy of the test results.

[0067] In some embodiments of the present invention, such as Figure 1 and Figure 7As shown, the electric drive vibration damping test device 100 may further include: a temperature regulating mechanism 7 and a temperature sensor 8. The temperature regulating mechanism 7 is fixed in the test chamber 1 and located in the assembly space 11. The temperature sensor 8 is used to detect the temperature in the assembly space 11. Both the temperature regulating mechanism 7 and the temperature sensor 8 are communicatively connected to the controller 6. The controller 6 is also configured to control the temperature regulating mechanism 7 to work according to the detection information of the temperature sensor 8, so as to regulate the temperature in the assembly space 11.

[0068] The electric drive vibration damping testing device 100 may further include a temperature regulating mechanism 7 and a temperature sensor 8. The temperature regulating mechanism 7 can regulate the temperature inside the test chamber 1, so that the electric drive vibration damping testing device 100 can measure the vibration damping performance of the test piece under different temperature conditions. The temperature regulating mechanism 7 is fixed to the test chamber 1. As some embodiments of this application, the temperature regulating mechanism 7 can be fixed to the test chamber 1 by bolts. As some embodiments of this application, the temperature regulating mechanism 7 can be fixed to the test chamber 1 by snap-fit.

[0069] The temperature regulation mechanism 7 is located within the assembly space 11. This arrangement allows for a reasonable layout of the temperature regulation mechanism 7, facilitating its adjustment of the temperature within the assembly space 11. A temperature sensor 8 is used to detect the temperature within the assembly space 11 and is communicatively connected to the controller 6, enabling the controller 6 to obtain real-time temperature information within the assembly space 11. The temperature regulation mechanism 7 is also communicatively connected to the controller 6, allowing the controller 6 to control the operation of the temperature regulation mechanism 7 based on the detection information from the temperature sensor 8, thereby adjusting the temperature within the assembly space 11 and simulating the vibration damping performance of the electric drive under different temperature conditions.

[0070] After the controller 6 detects the real-time temperature, it starts the vibrator 5 to simulate the vibration conditions when the vehicle is in motion. This allows the test mechanism 4 to detect the data of the electric drive under different temperature conditions. After the test mechanism 4 completes the test, the parameter information measured by the test mechanism 4 can be transmitted to the controller 6. The controller 6's integration center performs data analysis and then evaluates the vibration reduction performance of the electric drive according to the set standard parameters.

[0071] In some embodiments of the present invention, such as Figure 1 and Figure 7 As shown, the temperature regulating mechanism 7 may include a heater 71 and a cooler 72.

[0072] The temperature regulation mechanism 7 may include a heater 71 and a cooler 72. In some embodiments of this application, both the heater 71 and the cooler 72 can be bolted to the test chamber 1, so that both are located within the assembly space 11. The heater 71 can increase the temperature within the assembly space 11. The cooler 72 can decrease the temperature within the assembly space 11. Compared to having only a heater 71 or only a cooler 72, the temperature regulation mechanism 7, including both a heater 71 and a cooler 72, can improve the temperature regulation efficiency within the assembly space 11, allowing the temperature within the assembly space 11 to quickly reach the target temperature, thereby improving the efficiency of the vibration damping performance test of the test piece.

[0073] In some embodiments of the present invention, such as Figure 1 , Figure 7 and Figure 8 As shown, the vibrator 5 is located outside the test chamber 1 and is fixed to the bottom wall of the test chamber 1.

[0074] The vibrator 5 is located outside the test chamber 1 and fixed to the bottom wall of the test chamber 1. As some embodiments of this application, the vibrator 5 and the test chamber 1 can be assembled, but are not limited to, by snap-fit, screw-fit, or other methods. This arrangement allows for a reasonable layout of the vibrator 5, and when the vibrator 5 vibrates, it can reliably simulate the bumpy conditions of a vehicle, thus enabling the test piece to be tested under conditions closest to actual operating conditions. This facilitates the controller 6 in reliably determining the shock absorption performance of the test piece.

[0075] Furthermore, the electric drive vibration damping testing device 100 may include a fixed base 13 and multiple clamps 12. As some embodiments of this application, the fixed base 13 and the multiple clamps 12 may be integrally formed. The vibrator 5 can be engaged with the fixed base 13 via the clamps 12. The multiple clamps 12 limit the position of the vibrator 5 along its circumference, improving the positional stability of the vibrator 5 and reducing the risk of the vibrator 5 falling off the fixed base 13 due to vibration. As some embodiments of this application, the fixed base 13 may be fixed to the bottom wall of the test chamber 1 by bolts, thereby achieving the effect of fixing the vibrator 5 to the bottom wall of the test chamber 1. By vibrating the vibrator 5 against the bottom wall of the test chamber 1, the electric drive vibration damping testing device 100 simulates the bumpy conditions of a vehicle during driving.

[0076] In some embodiments of the present invention, such as Figures 2-3 As shown, the fixing mechanism 2 may include: a lifting block 21 and two clamping blocks 22. The first driving mechanism 3 is connected to the lifting block 21. The two clamping blocks 22 are opposite to each other and spaced apart along the first direction. Both clamping blocks 22 are located on the lifting block 21, and the positions of both clamping blocks 22 are adjustable along the first direction to clamp or release the test piece. The first direction is perpendicular to the height direction of the test box 1.

[0077] The fixing mechanism 2 may include a lifting block 21 and two clamping blocks 22. A first driving mechanism 3 is connected to the lifting block 21 so that the first driving mechanism 3 can adjust the height of the lifting block 21. The two clamping blocks 22 are arranged opposite each other along a first direction, i.e., the first direction is... Figure 1 The two clamping blocks 22 are spaced apart along the first direction in the X direction, which helps to provide an assembly position for the test piece and facilitates the assembly of the test piece between the two clamping blocks 22.

[0078] Both clamping blocks 22 are disposed on the lifting block 21. In some embodiments of this application, both clamping blocks 22 can be engaged with the lifting block 21, and the lifting block 21 may be provided with engagement grooves to facilitate engagement of the clamping blocks 22. In some embodiments of this application, both clamping blocks 22 can be bolted to the lifting block 21, and the clamping blocks 22 may be provided with elongated bolt holes. This arrangement allows both clamping blocks 22 to be positionally adjustable along a first direction, enabling them to clamp or release the test piece. The first direction is perpendicular to the height direction of the test chamber 1; that is, the X direction is perpendicular to the Z direction.

[0079] In some embodiments of the present invention, such as Figures 2-3 As shown, the fixing mechanism 2 may further include: an adjusting member 23, two clamping blocks 22 slidably disposed on the lifting block 21 along the first direction, the adjusting member 23 being connected to both clamping blocks 22, and the adjusting member 23 being used to drive the two clamping blocks 22 to move closer or further apart from each other along the first direction.

[0080] The fixing mechanism 2 may further include an adjusting member 23. The adjusting member 23 may be one or two, but is not limited to this application. This application uses a fixing mechanism 2 with two adjusting members 23 as an example. Having two adjusting members 23 improves the reliability of the adjustment; when one adjusting member 23 fails, the other can continue to perform the adjustment function. As some embodiments of this application, the adjusting member 23 may be constructed as an adjusting screw 24. As some embodiments of this application, the adjusting member 23 may be constructed as an adjusting bolt.

[0081] Two clamping blocks 22 are disposed on the lifting block 21. The two clamping blocks 22 are slidable along a first direction, so that the two clamping blocks 22 can slide toward or away from each other along the first direction. An adjusting member 23 is connected to both clamping blocks 22, so that the adjusting member 23 can drive the two clamping blocks 22 to move closer or further away from each other along the first direction, thereby facilitating the clamping blocks 22 to clamp or release the test piece.

[0082] In some embodiments of the present invention, such as Figures 2-3As shown, each clamping block 22 includes a clamping part 221 and an adjusting arm 222, which are fixedly connected. The adjusting member 23 is connected to the adjusting arm 222 of the two clamping blocks 22.

[0083] Each clamping block 22 includes a clamping portion 221 and an adjusting arm 222. Further, each clamping block 22 may include one clamping portion 221 and two adjusting arms 222 to improve the operational reliability of the adjusting arms 222. If one adjusting arm 222 cracks or even breaks, the other adjusting arm 222 can continue to perform its adjusting function. The clamping portion 221 and the adjusting arms 222 are fixedly connected. As some embodiments of this application, the clamping portion 221 and the adjusting arms 222 can be integrally formed. As some embodiments of this application, the clamping portion 221 and the adjusting arms 222 can be fixedly connected by bolts.

[0084] This application uses the example of the clamping part 221 and the adjusting arm 222 being integrally formed. That is, the clamping part 221 and the adjusting arm 222 are constructed as an integrally formed part. An integrally formed part has good structural strength. By integrally forming the clamping part 221 and the adjusting arm 222, the connection reliability of the clamping part 221 and the adjusting arm 222 can be improved, reducing the probability of breakage at the connection point. Furthermore, integral forming of the clamping part 221 and the adjusting arm 222 can reduce the number of molds, thereby reducing the production cost of the clamping block 22. The adjusting member 23 is connected to the adjusting arms 222 of the two clamping blocks 22. By adjusting the adjusting arms 222 of the two clamping blocks 22 to slide towards or away from each other, the clamping parts 221 of the two clamping blocks 22 can be moved towards or away from each other, thereby clamping or releasing the test piece by the clamping part 221, thus facilitating the adjustment of the clamping or releasing of the test piece by the two clamping blocks 22.

[0085] In some embodiments of the present invention, such as Figures 2-3 As shown, the adjusting member 23 is a screw 24, and the adjusting arm 222 of each clamping block 22 has a threaded hole 2221. The screw 24 passes through the threaded holes 2221 of the two clamping blocks 22.

[0086] The screw 24 and the threaded hole 2221 are sized and shaped to fit together, allowing the screw 24 to pass through the threaded holes 2221 of the two clamping blocks 22. Further, the screw 24 may include two fastening nuts 241. After the screw 24 passes through the threaded holes 2221 of the two clamping blocks 22, the two fastening nuts 241 are mounted on the outside of the two clamping blocks 22. When it is necessary to clamp the test piece, rotating the fastening nuts 241 drives the two clamping blocks 22 to move towards each other, thereby clamping the test piece. When it is necessary to remove the test piece, rotating the fastening nuts 241 in the opposite direction removes them from the screw 24. At this time, the two clamping blocks 22 can move away from each other, allowing them to release the test piece, thus removing it from the clamping blocks 22.

[0087] In some embodiments of the present invention, such as Figures 2-3 As shown, each clamping block 22 includes two adjusting arms 222. The two adjusting arms 222 of each clamping block 22 are located on both sides of the lifting block 21 along the second direction. Along the second direction, the two sides of the lifting block 21 are formed with guide grooves 211 extending along the first direction. The adjusting arms 222 have limiting holes 2222 corresponding to the guide grooves 211. The fixing mechanism 2 also includes multiple limiting sliders 25. The multiple limiting sliders 25 are respectively inserted through the corresponding limiting holes 2222 and assembled in the corresponding guide grooves 211. The first direction, the second direction and the height direction of the test box 1 are perpendicular to each other.

[0088] Each clamping block 22 includes two adjusting arms 222, which are arranged along a second direction, i.e. Figure 1 In the Y direction, the two adjusting arms 222 of each clamping block 22 are located on both sides of the lifting block 21 along the second direction. This arrangement allows for a reasonable arrangement of the adjusting arms 222, which is beneficial for the adjusting arms 222 to be evenly stressed on both sides of the lifting block 21, reducing the risk of stress concentration in a single adjusting arm 222 leading to its breakage. Along the second direction, guide grooves 211 are formed on both sides of the lifting block 21. The guide grooves 211 extend along the first direction, and the adjusting arms 222 have limiting holes 2222 corresponding to the guide grooves 211. The height of the limiting holes 2222 is adapted to the width of the guide grooves 211.

[0089] The fixing mechanism 2 also includes multiple limiting sliders 25, which may include, but are not limited to, two, three, four, or more. The height of the limiting sliders 25, the height of the limiting holes 2222, and the width of the guide grooves 211 are all adapted to each other, so that the multiple limiting sliders 25 can be respectively inserted into the corresponding limiting holes 2222, and the multiple limiting sliders 25 can be assembled into the corresponding guide grooves 211, thereby achieving the effect of clamping the clamping block 22 to the lifting block 21 through the limiting sliders 25. By allowing the limiting sliders 25 to slide within the corresponding guide grooves 211, the clamping block 22 can be slidably clamped to the lifting block 21, facilitating the clamping block 22 to clamp or release the test piece. The first direction, the second direction, and the height direction of the test chamber 1 are perpendicular to each other, that is, the X direction, Y direction, and Z direction are perpendicular to each other.

[0090] In some embodiments of the present invention, such as Figures 1-2 As shown, the electric drive vibration damping test device 100 may further include: a guide rod 9, which is disposed in the assembly space 11 and extends along the height direction of the test box 1; the lifting block 21 has a guide hole 212, and the guide rod 9 passes through the guide hole 212.

[0091] The guide rod 9 serves a guiding function and is located within the assembly space 11. In some embodiments of this application, the guide rod 9 can be bolted to the bottom wall of the housing to ensure its placement within the assembly space 11. Alternatively, it can be snap-fitted to the bottom wall of the housing to ensure its placement within the assembly space 11. The guide rod 9 extends along the height direction of the test housing 1, that is, it extends along the Z-direction. The lifting block 21 has a guide hole 212 that matches the guide rod 9, facilitating the guide rod 9's insertion through the guide hole 212. This reduces the risk of interference between the guide rod 9 and the lifting block 21 due to an excessively small guide hole 212, and also reduces the risk of guide hole 212 failure due to an excessively large guide hole 212.

[0092] As some embodiments of this application, one end of the guide rod 9 can be connected to the bottom wall of the test chamber 1, and the other end of the guide rod 9 can be connected to the top wall of the test chamber 1, so that the guide rod 9 is fixed between the bottom wall and the top wall of the test chamber 1, which is beneficial to improving the stability of the guide rod 9, thereby improving the reliability of the guide rod 9 in guiding the lifting block 21.

[0093] In some embodiments of the present invention, such as Figure 2 and Figure 4As shown, the testing mechanism 4 may include: a lifting shaft 41, a fixing member 42, and a parameter detection sensor 43. The lifting shaft 41, the fixing member 42, and the parameter detection sensor 43 are all located in the assembly space 11. The parameter detection sensor 43 is fixed to the lifting shaft 41. The fixing member 42 is adapted to be fixed to the lifting shaft 41. The fixing member 42 has an assembly hole 421 for assembling the test piece.

[0094] The lifting shaft 41 can drive the testing mechanism 4 to position it at different heights. The lifting shaft 41, the fixing component 42, and the parameter detection sensor 43 are all located within the assembly space 11. This facilitates the stable operation of these components within the assembly space 11, reduces interference from the external environment, and ultimately improves the reliability of the measurement results from the electric vibration damping testing device 100.

[0095] The fixing member 42 can be fixed to the lifting shaft 41. In some embodiments of this application, the fixing member 42 and the lifting shaft 41 can be connected by a snap-fit ​​connection. The fixing member 42 has a mounting hole 421 for assembling the test piece. A portion of the test piece can be inserted into the mounting hole 421, facilitating the assembly of the test piece onto the fixing member 42 through the mounting hole 421. The parameter detection sensor 43 is fixed to the lifting shaft 41. This arrangement allows the parameter detection sensor 43 to be positioned appropriately, enabling it to move with the lifting shaft 41 and thus contact the test piece to detect its parameter information.

[0096] As some embodiments of this application, the testing mechanism 4 may further include: a fastener 44, which is annular in shape and has a first end 441 and a second end 442 facing each other, with a notch defined between the first end 441 and the second end 442. The fastener 44 can be sleeved on the outside of the fixing member 42. The size of the notch can be reduced by clamping the fastener 44 to clamp the fixing member 42, thereby clamping the test piece by the fixing member 42. As some embodiments of this application, the fastener 44 may have a first clamping plate 443 and a second clamping plate 444. The first clamping plate 443 is disposed at the first end 441, and the second clamping plate 444 is disposed at the second end 442. The first clamping plate 443 and the second clamping plate 444 are spaced apart and correspondingly arranged. By bringing the first clamping plate 443 and the second clamping plate 444 closer together, the size of the notch can be reduced to clamp the fixing member 42. As some embodiments of this application, a bolt can pass through the first clamping plate 443 and the second clamping plate 444 and engage with a nut. By adjusting the bolt and the nut, the first clamping plate 443 and the second clamping plate 444 can move closer or further apart, thereby adjusting the size of the notch. Furthermore, an adjusting pin 445 can be installed at the end of the bolt away from the nut. By rotating the adjusting pin 445, the bolt and the nut can be adjusted to move the first clamping plate 443 and the second clamping plate 444 closer or further apart, thus reducing the difficulty of adjusting the bolt and the nut.

[0097] As some embodiments of this application, the fixing member 42 may have multiple contraction grooves 422, which may be arranged at intervals along the circumference of the fixing member 42. This arrangement facilitates elastic deformation of the fixing member 42 to clamp the test piece. Furthermore, a rubber ring 423 may be provided inside the fixing member 42. The rubber ring 423 has an anti-slip function, which can improve the relative stability between the fixing member 42 and the test piece, thereby improving the positional stability of the test piece.

[0098] In some embodiments of the present invention, such as Figure 1 and Figure 7 As shown, the parameter detection sensor 43 may include a pressure sensor 431 and a speed sensor 432. The pressure sensor 431 is fixed to the end face of the lifting shaft 41, and the speed sensor 432 is fixed to the side wall of the lifting shaft 41.

[0099] The parameter detection sensor 43 may include a pressure sensor 431 and a speed sensor 432. The pressure sensor 431 can detect the pressure parameter of the workpiece under test, and the speed sensor 432 can detect the speed parameter of the workpiece under test. The pressure sensor 431 is fixed to the end face of the lifting shaft 41, and the speed sensor 432 is fixed to the side wall of the lifting shaft 41. This arrangement allows for a reasonable placement of the pressure sensor 431 and the speed sensor 432, facilitating reliable detection of the pressure and speed parameters of the workpiece under test by the pressure sensor 431 and the speed sensor 432.

[0100] Furthermore, the pressure sensor 431 and the velocity sensor 432 are communicatively connected to the controller 6 so that the controller 6 can receive the parameter information measured by the pressure sensor 431 and the velocity sensor 432, thereby enabling the controller 6 to determine the vibration damping performance of the test piece based on the received parameter information.

[0101] As some embodiments of this application, such as Figures 5-6 As shown, the test chamber 1 includes a main body 14, a door 15, and a base 16. Foot pads 161 can be installed on the base 16, providing anti-slip properties and reducing the risk of displacement of the test chamber 1 due to test vibrations. Sound insulation cotton 141 can be installed on the inner walls of the main body 14, and glass 151 is installed on the door 15, allowing test personnel to easily observe the testing conditions inside the test chamber 1. Furthermore, a vacuum is evacuated inside the glass 151, thus blocking the propagation path of noise from both the inner walls of the main body 14 and the door 15, reducing the risk of noise from inside the test chamber 1 being transmitted to the outside, thereby effectively reducing noise generated during the test. Additionally, the vacuum-sealed glass 151 can withstand higher wind pressure, which helps reduce the risk of glass 151 breaking, thereby improving safety during the test. As some embodiments of this application, a first magnetic strip 142 is installed on the main body 14, and a second magnetic strip 152 is installed on the door 15. The first magnetic strip 142 and the second magnetic strip 152 are arranged opposite to each other. By attracting the second magnetic strip 152 with the first magnetic strip 142, the door 15 can be attracted to the main body 14 via the second magnetic strip 152, which facilitates the opening or closing of the door 15. Furthermore, a handle 153 is installed on the side of the door 15 facing the outside of the test chamber 1. By pulling the handle 153, the door 15 can be opened or closed easily, thereby reducing the difficulty of using the electric drive vibration damping test device 100 and improving the testing efficiency of the electric drive vibration damping test device 100.

[0102] As some embodiments of this application, firstly, parameters are set in the controller 6, and relevant standard parameter information can be set according to the test requirements of the test piece. A suspension bolt 2211 passes through the clamping part 221. When testing the shock absorption performance of the test piece, the suspension bolt 2211 is removed, and the test piece is moved between the two clamping blocks 22. The suspension bolt 2211 passes sequentially through the clamping part 221 of the first clamping block 22, the suspension hole of the test piece, and the clamping part 221 of the second clamping block 22, so that the test piece is suspended between the two clamping blocks 22. When the gap between the test piece and the two clamping blocks 22 is large, the two clamping blocks 22 can be driven to move closer to each other along the first direction by adjusting the adjusting member 23, so that the two clamping blocks 22 clamp the test piece, thereby achieving the effect of fixing the test piece.

[0103] After the test piece is installed, the controller 6 controls the first drive mechanism 3 to drive the clamping block 22 to move. The clamping block 22 moves the test piece to a suitable height, allowing it to be assembled onto the fixing part 42 and locked in place by the fastener 44. The controller 6 controls the movement of the lifting shaft 41 so that the pressure sensor 431 on the end face of the lifting shaft 41 and the speed sensor 432 on the side wall can test the pressure and speed parameters of the test piece. The controller 6 adjusts the heater 71 or cooler 72 as needed to test the test piece data at different temperatures, so that the controller 6 can receive the real-time temperature feedback from the temperature sensor 8. After the assembly is completed, the chamber door 15 is closed and magnetically attached to the chamber. The controller 6 starts the vibrator 5 to simulate the vibration scenario of a vehicle in motion, thereby obtaining diverse data. After the test is completed, the parameter information is analyzed by the integrated center of the controller 6, and finally the vibration damping performance of the test piece is evaluated according to the set standard parameters.

[0104] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0105] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric drive vibration damping testing device, characterized in that, include: A test chamber having an assembly space; A fixing mechanism and a first driving mechanism are both located within the assembly space. The first driving mechanism and the fixing mechanism are connected to drive the fixing mechanism to rise and fall. The fixing mechanism is used to fix the test piece. A testing mechanism, at least a portion of which is disposed within the assembly space, is located below the fixing mechanism, and is used to assemble with the test piece to detect the parameter information of the test piece; A vibrator and a controller, wherein the vibrator is fixed to the test chamber, the controller is communicatively connected to the test mechanism, and the controller is configured to determine the vibration damping performance of the test piece based on the parameter information; The testing mechanism further includes: a fastener, the fastener being ring-shaped and having a first end and a second end opposite to each other, a notch being defined between the first end and the second end, the fastener being sleeved on the outside of the fixing member, the size of the notch being reduced by clamping the fastener to clamp the fixing member, so that the fixing member clamps the test piece. The testing mechanism includes: a lifting shaft, a fixing component, and a parameter detection sensor. The lifting shaft, the fixing component, and the parameter detection sensor are all disposed within the assembly space. The parameter detection sensor is fixed to the lifting shaft. The fixing component is adapted to be fixed to the lifting shaft. The fixing component has an assembly hole for assembling the test piece. The parameter detection sensor includes a pressure sensor and a speed sensor. The pressure sensor is fixed to the end face of the lifting shaft, and the speed sensor is fixed to the side wall of the lifting shaft.

2. The electric drive vibration damping testing device according to claim 1, characterized in that, Also includes: A temperature regulating mechanism and a temperature sensor are provided. The temperature regulating mechanism is fixed to the test chamber and located within the assembly space. The temperature sensor is used to detect the temperature within the assembly space. Both the temperature regulating mechanism and the temperature sensor are communicatively connected to the controller. The controller is also configured to control the temperature regulating mechanism to operate based on the detection information from the temperature sensor, so as to regulate the temperature within the assembly space.

3. The electric drive vibration damping testing device according to claim 2, characterized in that, The temperature regulating mechanism includes a heater and a cooler.

4. The electric drive vibration damping testing device according to claim 1, characterized in that, The vibrator is located outside the test chamber and is fixed to the bottom wall of the test chamber.

5. The electric drive vibration damping testing device according to any one of claims 1-4, characterized in that, The fixing mechanism includes a lifting block and two clamping blocks. The first driving mechanism is connected to the lifting block. The two clamping blocks are opposite to each other and spaced apart along a first direction. Both clamping blocks are located on the lifting block, and the positions of both clamping blocks along the first direction are adjustable to clamp or release the test piece. The first direction is perpendicular to the height direction of the test box.

6. The electric drive vibration damping testing device according to claim 5, characterized in that, The fixing mechanism further includes an adjusting member, wherein the two clamping blocks are slidably disposed on the lifting block along the first direction, the adjusting member is connected to both clamping blocks, and the adjusting member is used to drive the two clamping blocks to move closer or further apart from each other along the first direction.

7. The electric drive vibration damping testing device according to claim 6, characterized in that, Each of the clamping blocks includes a clamping part and an adjusting arm, the clamping part and the adjusting arm being fixedly connected, and the adjusting member being connected to the adjusting arms of the two clamping blocks.

8. The electric drive vibration damping testing device according to claim 7, characterized in that, The adjusting component is a screw, and each clamping block has an adjusting arm with a threaded hole. The screw passes through the threaded holes of the two clamping blocks.

9. The electric drive vibration damping testing device according to claim 7, characterized in that, Each clamping block includes two adjusting arms, which are located on both sides of the lifting block along the second direction. Guide grooves extending along the first direction are formed on both sides of the lifting block along the second direction. The adjusting arms have limiting holes corresponding to the guide grooves. The fixing mechanism also includes multiple limiting sliders, which are respectively inserted through the corresponding limiting holes and assembled in the corresponding guide grooves. The first direction, the second direction, and the height direction of the test box are perpendicular to each other.

10. The electric drive vibration damping testing device according to claim 5, characterized in that, Also includes: A guide rod is provided within the assembly space and extends along the height direction of the test box. The lifting block has a guide hole, through which the guide rod passes.

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