Vibration test device for driving motor of electric automobile

Abstract

The utility model discloses a vibration test device for a driving motor of an electric automobile. The vibration test device comprises a vibration test bench and a mounting structure, the vibration test bench comprises a horizontal sliding table. The mounting structure comprises a supporting base and a mounting part, the supporting base is detachably mounted on the horizontal sliding table, and the mounting part is mounted at the end, away from the horizontal sliding table, of the supporting base; wherein the mounting part comprises at least two first mounting blocks and at least two second mounting blocks which are arranged at intervals in the first direction, and the at least two first mounting blocks are arranged at intervals in the second direction; the at least two second mounting blocks are arranged at intervals in the second direction, and a mounting space is defined by the at least two second mounting blocks and the at least two first mounting blocks and is at least used for mounting a driving motor; the device can firmly fix the driving motor, and is simple in structure and convenient to produce and manufacture.

Description

Technical Field

[0001] The utility model relates to the field of reliability testing of a driving motor of an electric vehicle, in particular to a vibration testing device for a driving motor of an electric vehicle. Background Art

[0002] At present, with the rapid development of electric vehicles, especially the reliability of pure electric vehicles driven by motors, more and more attention has been paid to them. Among them, the vibration test of the drive motor can well verify the vibration characteristics of the drive motor at a specific frequency, the vibration response of the drive motor at different frequencies, and the vibration conditions that the drive motor may encounter in the actual use environment. The vibration test of the drive motor is divided into multiple test methods such as fixed frequency vibration, sweep frequency vibration, and random vibration.

[0003] At present, the commonly used standards for electric vehicle drive motors are: GB / T18488, ISO16750-3, ISO19453. If the test is carried out according to GB / T18488, the drive motor should be able to withstand the sweep frequency vibration test specified in GB / T18488-2015 5.4.6 and the random vibration test specified in GB / T28046-3-2011 4.1.2.7 Commercial Vehicle Elastomers. After the test, there should be no damage to the parts, no falling off of the fasteners, and it should be able to work normally under rated voltage, continuous torque, and continuous power.

[0004] The complicated appearance of the drive motor makes the existing drive motor vibration test fixture also complicated and difficult to manufacture. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a vibration test device for a drive motor of an electric vehicle, so as to at least solve the technical problems that the existing drive motor vibration test fixture is complicated and difficult to manufacture.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] The electric vehicle drive motor vibration test device includes:

[0008] A vibration test bench, the vibration test bench comprising a horizontal slide table;

[0009] A mounting structure, the mounting structure comprising a support base and a mounting portion, the support base being detachably mounted on the horizontal slide, and the mounting portion being mounted on an end of the support base away from the horizontal slide;

[0010] Wherein, the mounting portion includes a first mounting block and a second mounting block spaced apart along a first direction, the first mounting block and the second mounting block each include at least two blocks, at least two of the first mounting blocks are spaced apart along a second direction, at least two of the second mounting blocks are spaced apart along the second direction and are surrounded by at least two of the first mounting blocks to form an installation space, and the installation space is at least used to install a drive motor.

[0011] Furthermore, the support base includes a connecting member and at least two first columns and at least two second columns, the at least two first columns and at least two second columns are arranged at intervals along the first direction and are detachably mounted on the horizontal slide through the connecting member, and at least two of the first columns are arranged at intervals along the second direction and are respectively connected to the first mounting blocks, and at least two of the second columns are arranged at intervals along the second direction and are respectively connected to the second mounting blocks.

[0012] Furthermore, the connecting member includes a horizontally arranged mounting plate, the mounting plate is provided with a fixing hole, the horizontal slide is provided with a threaded hole, and the mounting plate is connected to the horizontal slide by screws passing through the fixing holes and threadedly connected to the threaded holes.

[0013] Further, at least two of the first mounting blocks are provided with mounting holes, the mounting holes on at least two of the first mounting blocks correspond one-to-one to the connecting holes on the front side of the drive motor, and at least two of the first mounting blocks are connected to the drive motor by fasteners passing through the mounting holes and the connecting holes; at least two of the second mounting blocks are provided with mounting holes, the mounting holes on at least two of the second mounting blocks correspond one-to-one to the connecting holes on the left and right sides of the rear end of the drive motor, and at least two of the second mounting blocks are connected to the drive motor by fasteners passing through the mounting holes and the connecting holes.

[0014] Furthermore, the first mounting block includes the first fixing plate and the second fixing plate connected as one body, the first fixing plate is fixed to the first column and at least partially extends out of the first column along the first direction, and the second fixing plate is located at an end of the first fixing plate away from the first column.

[0015] Furthermore, reinforcing plates are respectively provided on opposite sides of the first mounting block along the third direction, one end of the reinforcing plate is connected to the first fixing plate, and the other end of the reinforcing plate is connected to the second fixing plate.

[0016] Furthermore, the support base also includes at least four first beams, and the at least four first beams are respectively arranged between two adjacent first columns, two adjacent second columns, and between the first column and the second column, and at least four first beams are located between the mounting portion and the connecting member.

[0017] Furthermore, the support base also includes a second crossbeam, which is arranged between the first column and the second column, and the second crossbeam is located on a side of the first crossbeam close to the mounting portion.

[0018] Furthermore, there are multiple threaded holes on the horizontal slide, and the multiple threaded holes are evenly spaced, and all the fixing holes on the multiple mounting plates correspond to some of the threaded holes one by one.

[0019] Furthermore, the threaded hole is the inner hole of the threaded sleeve, the threaded sleeve is provided with an external thread, the horizontal slide is provided with an internal threaded hole, the threaded sleeve is connected to the horizontal slide by threads and thread glue is applied on the connection surface.

[0020] The beneficial effects of the utility model are:

[0021] The utility model discloses a driving motor vibration test device for an electric vehicle, wherein a supporting base is arranged on a horizontal slide table of the vibration test table, wherein the supporting base supports at least two first mounting blocks and at least two second mounting blocks, and a driving motor mounting block space is formed between the at least two first mounting blocks and the at least two second mounting blocks. The vibration of the horizontal slide table drives the driving motor in the mounting space to vibrate through the supporting base to perform a driving motor vibration test. The device can firmly fix the driving motor, and has a simple structure and is easy to manufacture.

[0022] The support base is composed of at least two first upright columns and at least two second upright columns and connecting members thereunder, and has a simple structure.

[0023] The connecting piece is a mounting plate, which is provided with fixing holes. The mounting plate and the horizontal slide are connected by screws passing through the fixing holes on the mounting plate and threadedly connected to the threaded holes on the horizontal slide, which is convenient for disassembly and assembly.

[0024] At least two first mounting blocks and at least two second mounting blocks are connected to the driving motor via fasteners, and the connection is convenient.

[0025] At least four first cross beams are provided to connect at least two first upright posts and at least two second upright posts into one, making it more convenient to use.

[0026] The second cross beam can increase the strength of the supporting base.

[0027] The multiple threaded holes on the horizontal slide are evenly spaced so that the mounting structure can be connected more conveniently in the first direction or the second direction of the horizontal slide.

[0028] The threaded hole is the inner hole of the threaded sleeve. After the thread of the threaded hole is stripped, the thread glue can be heated to replace the threaded sleeve.

[0029] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings, in which:

[0031] Figure 1 It is a three-dimensional diagram of the connection between the driving motor, the mounting structure and the horizontal slide in the utility model.

[0032] Figure 2 It is a three-dimensional diagram of the installation structure in the utility model.

[0033] Figure 3 It is a side view of the utility model with a temperature control box.

[0034] Figure 4 This is an end view of the utility model with a temperature control box.

[0035] In the figure: 1. horizontal slide; 2. mounting structure; 3. first mounting block; 4. second mounting block; 5. drive motor; 6. first column; 7. second column; 8. mounting plate; 9. fixing hole; 10. threaded hole; 11. mounting hole; 12. reinforcing plate; 13. first crossbeam; 14. second crossbeam; 15. vibration generator; 16. U-shaped support; 17. rotating shaft; 18. reinforcing rib; 19. temperature control box; 20. support frame; 21. temperature control chamber; 22. flexible insulation tray. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, rather than for limiting the protection scope of the present invention.

[0037] Before describing the embodiments of the present invention, the professional name of the present invention is explained:

[0038] The driving motor of an electric vehicle is an electrical component that converts the electrical energy of an electric vehicle into mechanical energy. When electrical energy is converted into mechanical energy, the motor exhibits the working characteristics of a motor, and when mechanical energy is converted into electrical energy, the motor exhibits the working characteristics of a generator. When the electric vehicle drives the vehicle forward or backward in a discharge state, it exhibits the characteristics of a motor, and when the accelerator pedal is released or the brake pedal is pressed, it exhibits the characteristics of a generator. At present, there are two types of driving motors commonly used in electric vehicles, permanent magnet synchronous motors and AC asynchronous motors. Most electric vehicles use permanent magnet synchronous motors, and only a small number of vehicles use AC asynchronous motors.

[0039] Vibration test bench: A vibration test bench is a test equipment used to simulate the effects of a real vibration environment in a laboratory. The vibration test uses different input signals to excite the sample (drive motor) on the vibration test bench. The drive motor vibration test is mainly divided into sinusoidal vibration, random vibration, impact vibration, etc.

[0040] The drive motor in the utility model is a drive motor for a new energy truck when it is longitudinally arranged, and is separate from the rear axle; the front, back, left, and right in the utility model are defined according to the arrangement direction of the drive motor in the whole vehicle.

[0041] In order to solve the technical problem that the existing drive motor vibration test fixture cannot fix the drive motor well when testing the longitudinal drive motor of a truck, the first embodiment of the utility model provides a drive motor vibration test device for an electric vehicle, such as Figure 1-4As shown, the device includes: a vibration test bench and a mounting structure. The vibration test bench includes a vibration generator 15 and a horizontal slide 1, the vibration generator 15 includes a moving coil, and the moving coil is connected to the horizontal slide 1 to make the horizontal slide 1 vibrate along a predetermined direction (X-axis direction, Y-axis direction or Z-axis direction). The mounting structure 2 includes a support base and a mounting portion, the support base is detachably mounted on the horizontal slide 1, and the mounting portion is mounted on an end of the support base away from the horizontal slide 1; wherein the mounting portion includes a first mounting block 3 and a second mounting block 4 arranged at intervals along a first direction (X-axis direction), the first mounting block 3 and the second mounting block 4 each include at least two blocks, at least two first mounting blocks 3 are arranged at intervals along a second direction (Y-axis direction), at least two second mounting blocks 4 are arranged at intervals along the second direction (Y-axis direction) and are surrounded by at least two first mounting blocks 3 to form an installation space, and the installation space is at least used to install a drive motor 5. That is, the horizontal slide 1 is provided with a detachable mounting support base, which supports at least two first mounting blocks 3 and at least two second mounting blocks 4, and a mounting space is formed between the at least two first mounting blocks 3 and at least two second mounting blocks 4 for mounting the drive motor 5. When the vibration generator 15 is started, the moving coil vibrates with the horizontal slide 1 and then vibrates with the drive motor 5 through the mounting structure 2 to perform a vibration test. The device can firmly fix the drive motor 5, and has a simple structure and is easy to manufacture.

[0042] The support base includes a connecting member and at least two first columns 6 and at least two second columns 7. The at least two first columns 6 and at least two second columns 7 are arranged at intervals along the first direction (X-axis direction) and are detachably mounted on the horizontal slide 1 through the connecting member, and at least two first columns 6 are arranged at intervals along the second direction (Y-axis direction) and are respectively connected to the first mounting block 3, and at least two second columns 7 are arranged at intervals along the second direction (Y-axis direction) and are respectively connected to the second mounting block 4. The support base is composed of at least two first columns 6 and at least two second columns 7, and has a simple structure and is easy to manufacture.

[0043] In order to facilitate the detachable connection between the connecting member and the horizontal slide 1, the connecting member includes a horizontally arranged mounting plate 8, the mounting plate 8 is provided with a fixing hole 9, and the horizontal slide 1 is provided with a threaded hole 10. The mounting plate 8 is connected to the horizontal slide 1 by screws passing through the fixing hole 9 and threadedly connected to the threaded hole 10.

[0044] At least two first mounting blocks 3 are provided with mounting holes 11, and the mounting holes 11 on at least two first mounting blocks 3 correspond to the connection holes on the end surface of one end of the driving motor 5 one by one, and at least two first mounting blocks 3 are connected to the driving motor 5 by fasteners passing through the mounting holes 11 and the connection holes; at least two second mounting blocks 4 are provided with mounting holes 11, and the mounting holes on at least two second mounting blocks 4 correspond to the connection holes on the left and right sides of the other end of the driving motor 5 one by one, and at least two second mounting blocks 4 are connected to the driving motor 5 by fasteners passing through the mounting holes 11 and the connection holes. It is more convenient to connect the driving motor 5 with at least two first mounting blocks 3 and at least two second mounting blocks 4 by using the connection holes provided by the driving motor 5.

[0045] In order to facilitate the first mounting block 3 to avoid other components except the connecting hole at one end of the driving motor 5 and firmly fix the driving motor 5, the first mounting block 3 includes a first fixing plate and a second fixing plate connected as a whole, the first fixing plate is fixed to the first column 6 and at least partially extends out of the first column 6 along the first direction (X-axis direction), and the second fixing plate is located at one end of the first fixing plate away from the first column 6.

[0046] In order to increase the structural strength of the first mounting block 3, reinforcing plates 12 are respectively provided on opposite sides of the first mounting block 3 along the third direction (Z-axis direction), one end of the reinforcing plate 12 is connected to the first fixing plate, and the other end is connected to the second fixing plate.

[0047] The support base also includes at least four first beams 13, and the at least four first beams 13 are respectively arranged between two adjacent first columns 6, two adjacent second columns 7, and between the first column 6 and the second column 7, and at least four first beams 13 are located between the mounting portion and the connecting piece. By arranging at least four first beams 13, at least two first columns 6 and at least two second columns 7 are formed into a whole, making the use of the mounting structure more convenient.

[0048] The support base also includes a second cross beam 14, which is disposed between the first column 6 and the second column 7, and is located on a side of the first cross beam 13 close to the mounting portion. The second cross beam 14 can improve the overall strength of the support base.

[0049] There are multiple threaded holes 10 on the horizontal slide 1, and the multiple threaded holes 10 are evenly spaced. All the fixing holes 9 of the multiple mounting plates 8 correspond to some of the threaded holes 10 one by one. After the mounting structure 2 is horizontally rotated 90°, it can still be conveniently connected to the horizontal slide 1.

[0050] The threaded hole 10 is the inner hole of the threaded sleeve, the threaded sleeve is provided with an external thread, and the horizontal slide 1 is provided with an internal threaded hole. The threaded sleeve is connected to the horizontal slide 1 through threads and thread glue is applied on the connecting surface. When the thread of the threaded hole 10 is stripped, the threaded sleeve can be replaced by heating the thread glue.

[0051] Embodiment 2

[0052] like Figure 1-4 As shown, a vibration test device for a driving motor of an electric vehicle comprises a vibration test bench, the vibration test bench comprises a vibration generator 15 and a horizontal slide table 1, the vibration generator 15 is supported by a support structure, the support structure comprises a U-shaped support portion 16, the vibration generator 15 is rotatably arranged between two sides of the U-shaped support portion 16 via a rotating shaft 17, the rotating shaft 17 is connected to an output end of a 90° flip mechanism, the vibration generator 15 comprises a moving coil, the moving coil is connected to the horizontal slide table 1 so that the horizontal slide table 1 vibrates along a predetermined test direction (X-axis, Y-axis or Z-axis direction), and there is an oil film between the horizontal slide table 1 and the U-shaped support portion 16.

[0053] As the main test equipment for completing the vibration test of the drive motor 5, the vibration test bench must meet the requirements of sufficient load-bearing capacity and vibration amplitude of the test sample (drive motor 5), and can accurately control parameters such as vibration frequency, amplitude, vibration acceleration, displacement, speed, and test time.

[0054] A mounting structure 2 is detachably provided on the horizontal slide 1, and the mounting structure 2 includes a support base and a mounting portion. The supporting base comprises two first columns 6 and two second columns 7, the two first columns 6 and the two second columns 7 are spaced apart along the first direction (X-axis direction), the two first columns 6 are spaced apart along the second direction (Y-axis direction), and the two second columns 7 are spaced apart along the second direction (Y-axis direction), that is, the two first columns 6 and the two second columns 7 are arranged in a rectangular shape, the two first columns 6 and the two second columns 7 are all 40*40*3 square tubes, one end of the square tube is closed by a blocking block, and the other end of each square tube is vertically welded with a mounting plate 8 through a full welding process, and the mounting plate 8 is provided with a plurality of fixing holes 9 arranged in a matrix, and right-angled triangle reinforcing ribs 18 are provided around each square tube and between the corresponding mounting plates 8, a first crossbeam 13 is provided between two adjacent square tubes on the side of the mounting plate 8 away from the horizontal slide 1, and a second crossbeam 14 is provided between the first column 6 and the second column 7 on the side of the first crossbeam 13 away from the mounting plate 8. The first mounting blocks 3 are respectively arranged on the opposite sides of the ends of the two first columns 6 away from the mounting plate 8. The first mounting blocks 3 include a first fixing plate and a second fixing plate connected as one body. The first fixing plate is welded and fixed to the first column 6 and at least partially extends out of the first column 6 toward the second column 7. The second fixing plate is located at the end of the first fixing plate away from the first column 6. The second fixing plates of the two first mounting blocks 3 extend in opposite directions. The first mounting block 3 is made of thick and high-strength steel plates and then processed by bending. Reinforcing plates 12 are respectively arranged on the opposite sides of the first mounting block 3 along the third direction (Z-axis direction). One end of the reinforcing plate 12 is connected to the first fixing plate and the other end is connected to the second fixing plate. Two mounting holes 11 are respectively arranged on the second fixing plates of the two first mounting blocks 3. The mounting holes 11 on the second fixing plates of the two first mounting blocks 3 correspond one-to-one to all the connecting holes on the end face of one end of the driving motor 5. One end of the driving motor 5 is connected to the two first mounting blocks 3 by a bolt assembly passing through the connecting hole and the mounting hole 11, thereby realizing the connection between one end of the driving motor 5 and the mounting structure 2. A second mounting block 4 is welded to the opposite side of one end of the two second columns 7 away from the mounting plate 8, and four mounting holes 11 are respectively provided on the two second mounting blocks 4. The mounting holes 11 on the two second mounting blocks 4 correspond one by one to the connecting holes on both sides of the other end of the drive motor 5, and the drive motor 5 is connected to the two second mounting blocks 4 through a bolt assembly passing through the mounting holes 11 and the connecting holes, so that the other end of the drive motor 5 is connected to the mounting structure 2, and the first column 6, the second column 7, the mounting plate 8, the first beam 13, the second beam 14, the first mounting block 3, the second mounting block 4, the reinforcing rib 18 and the reinforcing plate 12 of the mounting structure 2 are connected by welding.

[0055] There are multiple American internal threaded holes evenly spaced on the horizontal slide 1, and the spacing between the American internal threaded holes is 100mm. A threaded sleeve is threadedly connected in each American internal threaded hole. Thread glue is applied between the threaded sleeve and the American internal threaded hole on the horizontal slide 1. After the thread glue dries, the threaded sleeve is fixedly connected to the horizontal slide 1. The inner hole of the threaded sleeve is a threaded hole 10. All the fixing holes 9 of the four mounting plates 8 of the mounting structure 2 correspond one-to-one to some of the threaded holes 10 on the horizontal slide 1. The mounting plates 8 are connected to the horizontal slide 1 by screws passing through the fixing holes 9 and connecting the threaded holes 10. After the mounting structure 2 is horizontally rotated 90 degrees, all the fixing holes of the four mounting plates 8 can still correspond one-to-one to some of the threaded holes 10 on the horizontal slide 1. When the threads of the threaded holes 10 are stripped, the thread glue can be heated to remove the threaded sleeve and replace it.

[0056] In this embodiment, when the moving coil is located on one side of the vibration generator 15, the driving motor 5 is installed on the mounting structure 2, the mounting structure 2 is installed on the horizontal slide 1 and one end of the mounting structure 2 is facing the moving coil. When the vibration generator 15 is working, the moving coil vibrates with the horizontal slide 1, thereby realizing a vibration test of the driving motor 5 in the X-axis direction.

[0057] The mounting structure 2 is removed and horizontally rotated 90° and then re-fixed on the horizontal slide 1 . When the vibration generator 15 is working, the moving coil vibrates with the horizontal slide 1 to realize the vibration test of the drive motor 5 in the Y direction.

[0058] The rotating shaft 17 is flipped 90 degrees with the vibration generator 15 through the 90° flipping mechanism. At this time, the moving coil is located above the vibration generator 15, the horizontal slide 1 is connected to the moving coil, the mounting structure 2 is installed on the horizontal slide 1, and the driving motor 5 is installed on the mounting structure 2. When the vibration generator 15 is working, the moving coil vibrates with the horizontal slide 1 to realize the vibration test of the driving motor 5 in the Z-axis direction.

[0059] In this embodiment, the state of the drive motor 5 after being installed on the mounting structure 2 is consistent with the actual fixed state of the drive motor 5 on the whole vehicle, simulating the installation of the drive motor 5 on the whole vehicle. Therefore, this embodiment can well fix the drive motor 5 and has a simple structure and is easy to manufacture. This embodiment enables the vibration test of the electric vehicle drive motor 5 to be carried out efficiently, and the test types that can be carried out include sweeping sine, fixed-frequency sine, broadband random, classical shock, resonance search, random plus random, random plus sine, transient shock, road spectrum in place, etc.

[0060] Embodiment 3

[0061] like Figure 3 and 4As shown, the difference from Example 2 is that the vibration test device for the driving motor of the electric vehicle also includes a temperature control box 19, which is supported on the top of the vibration test bench by a support frame 20, and the temperature control box 19 is provided with a temperature-controllable temperature control chamber 21, and a flexible insulation tray 22 is detachably provided at one end of the temperature control chamber 21 facing the vibration test bench, and two groups of perpendicular crimping holes are provided on the flexible insulation tray 22, and each group of crimping holes corresponds one by one to all the fixing holes 9 on the four mounting plates 8 of the mounting structure 2, and the mounting structure 2 is located in the temperature control chamber 21, and the flexible insulation tray 22 is crimped to the horizontal slide 1 by the mounting plate 8 of the mounting structure 2, and the screws pass through the fixing holes 9 on the mounting plate 8 and the crimping holes on the flexible insulation tray 22 and are threadedly connected to the threaded holes 10.

[0062] In this embodiment, when the driving motor 5 is subjected to the vibration test in the X-axis direction, all the fixing holes 9 on the four mounting plates 8 of the mounting structure 2 are aligned with a group of crimping holes on the flexible thermal insulation tray 22, and the screws are connected through the fixing holes 9 on the mounting plates 8 and the crimping holes on the flexible thermal insulation tray 22 to the threaded holes 10 on the horizontal slide 1; when the driving motor 5 is subjected to the vibration test in the Y-axis direction, all the fixing holes 9 on the four mounting plates 8 of the mounting structure 2 are aligned with another group of crimping holes on the flexible thermal insulation tray 22, and the screws are connected through the fixing holes 9 on the mounting plates 8 and the crimping holes on the flexible thermal insulation tray 22 to the threaded holes on the horizontal slide 1.

[0063] This embodiment can realize various vibration tests under high temperature, low temperature, and high and low temperature alternating conditions.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A vibration test device for a driving motor of an electric vehicle, characterized in that: include: A vibration test bench, comprising a horizontal slide table (1); A mounting structure (2), the mounting structure (2) comprising a support base and a mounting portion, the support base being detachably mounted on the horizontal slide (1), and the mounting portion being mounted on an end of the support base away from the horizontal slide (1); The mounting portion comprises a first mounting block (3) and a second mounting block (4) which are spaced apart along a first direction, and each of the first mounting block (3) and the second mounting block (4) comprises at least two blocks, at least two of the first mounting blocks (3) are spaced apart along the second direction, and at least two of the second mounting blocks (4) are spaced apart along the second direction and are surrounded by the at least two first mounting blocks (3) to form an installation space, wherein the installation space is at least used for installing a drive motor (5).

2. The electric vehicle drive motor vibration test device according to claim 1, characterized in that: The support base comprises a connecting member and at least two first columns (6) and at least two second columns (7), the at least two first columns (6) and at least two second columns (7) being arranged at intervals along a first direction and being detachably mounted on the horizontal slide (1) via the connecting member, and at least two of the first columns (6) being arranged at intervals along a second direction and being respectively connected to the first mounting block (3), and at least two of the second columns (7) being arranged at intervals along the second direction and being respectively connected to the second mounting block (4).

3. The electric vehicle drive motor vibration test device according to claim 2, characterized in that: The connecting member comprises a horizontally arranged mounting plate (8), the mounting plate (8) being provided with a fixing hole (9), the horizontal slide table (1) being provided with a threaded hole (10), and the mounting plate (8) being connected to the horizontal slide table (1) by screws passing through the fixing hole (9) and being threadedly connected to the threaded hole (10).

4. The electric vehicle drive motor vibration test device according to claim 1, characterized in that: At least two of the first mounting blocks (3) are provided with mounting holes (11), the mounting holes (11) on at least two of the first mounting blocks (3) correspond one-to-one with the connection holes on the end surface of one end of the drive motor (5), and at least two of the first mounting blocks (3) are connected to the drive motor (5) by fasteners passing through the mounting holes (11) and the connection holes; at least two of the second mounting blocks (4) are provided with mounting holes (11), the mounting holes (11) on at least two of the second mounting blocks (4) correspond one-to-one with the connection holes on the left and right sides of the other end of the drive motor (5), and at least two of the second mounting blocks (4) are connected to the drive motor (5) by fasteners passing through the mounting holes (11) and the connection holes.

5. The electric vehicle drive motor vibration test device according to claim 2, characterized in that: The first mounting block (3) comprises a first fixing plate and a second fixing plate connected as an integral whole, the first fixing plate being fixed to the first column and at least partially extending out of the first column (6) along a first direction, and the second fixing plate being located at an end of the first fixing plate away from the first column (6).

6. The electric vehicle drive motor vibration test device according to claim 5, characterized in that: Reinforcement plates (12) are respectively provided on opposite sides of the first mounting block (3) along the third direction, one end of the reinforcement plate (12) is connected to the first fixing plate, and the other end is connected to the second fixing plate.

7. The electric vehicle drive motor vibration test device according to claim 2, characterized in that: The support base further comprises at least four first cross beams (13), the at least four first cross beams (13) being respectively arranged between two adjacent first columns (6), two adjacent second columns (7) and between the first column (6) and the second column (7), and at least four first cross beams (13) are located between the mounting portion and the connecting member.

8. The electric vehicle drive motor vibration test device according to claim 7, characterized in that: The support base further comprises a second crossbeam (14), the second crossbeam (14) being arranged between the first upright column (6) and the second upright column (7), and the second crossbeam (14) being located on a side of the first crossbeam (13) close to the mounting portion.

9. The electric vehicle drive motor vibration test device according to claim 7, characterized in that: There are a plurality of threaded holes (10) on the horizontal slide (1), the plurality of threaded holes (10) are evenly spaced, and all the fixing holes (9) on the plurality of mounting plates (8) correspond one to one with some of the threaded holes (10).

10. The electric vehicle drive motor vibration test device according to claim 9, characterized in that: The threaded hole (10) is the inner hole of the threaded sleeve, the threaded sleeve is provided with an external thread, the horizontal slide (1) is provided with an internal threaded hole, the threaded sleeve and the horizontal slide (1) are connected via threads and thread glue is applied on the connection surface.

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