New energy automobile motor test board

Abstract

The utility model belongs to the technical field of motor test equipment, and discloses a new energy automobile motor test board which is used for testing a tested motor. The motor test device comprises a rack, a test accompanying motor, a mounting assembly and a speed increasing assembly. And the test accompanying motor is arranged on the rack. And the mounting assembly is arranged on the rack and is configured to bear the tested motor and enable a rotating shaft of the tested motor to be close to a rotating shaft of the test accompanying motor. The speed increasing assembly is arranged on the rack, a rotating shaft of the test accompanying motor is in transmission connection with a rotating shaft of the tested motor through the speed increasing assembly, and the speed increasing assembly is configured to increase the output rotating speed of the test accompanying motor. According to the new energy automobile motor testboard provided by the utility model, the output rotating speed of the test accompanying motor is improved through the speed raising assembly, so that the rotating speed requirement of the tested motor can be met, and the high-rotating-speed motor with the rotating speed exceeding 20000 revolutions per minute can be tested.

Description

Technical Field

[0001] The utility model relates to the technical field of motor testing equipment, in particular to a new energy vehicle motor testing platform. Background Art

[0002] With the development of energy technology and automobile technology, the concept of energy conservation and environmental protection has become increasingly popular. New energy vehicles have received great attention from everyone, and their mass production has become an inevitable trend. For new energy vehicles that have just entered the early stage of industrialization, the quality of the whole vehicle is the most powerful weapon to open up the market and occupy the market. The motor assembly is an important core power component of new energy vehicles, so it is necessary to conduct multiple parameter tests, such as: noise test, back electromotive force, temperature rise test, output external characteristics, etc.

[0003] In the prior art, motor testing generally uses a companion motor to test the motor under test. Specifically, the motor under test is installed at the companion motor on the test bench. However, the rotation speed of the companion motor used in the existing new energy vehicle motor test bench is generally below 20,000 rpm, so it is impossible to test a high-speed motor exceeding 20,000 rpm.

[0004] Therefore, the above problems need to be solved urgently. Utility Model Content

[0005] The purpose of the utility model is to provide a new energy vehicle motor test bench to meet the speed requirements of the motor under test, thereby being able to test a high-speed motor with a speed exceeding 20,000 rpm.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A new energy vehicle motor test bench is used to test the motor under test, comprising:

[0008] Stand;

[0009] A companion test motor is arranged on the test stand;

[0010] A mounting assembly is disposed on the test stand, and the mounting assembly is configured to carry the motor under test and to make the rotating shaft of the motor under test and the rotating shaft of the accompanying motor under test close to each other;

[0011] A speed increasing component is arranged on the test bench, wherein the input end of the speed increasing component is drivingly connected to the rotating shaft of the accompanying motor for testing, and the output end of the speed increasing component is drivingly connected to the rotating shaft of the motor to be tested, so that the rotation speed of the motor to be tested during the test is greater than the output rotation speed of the accompanying motor for testing.

[0012] Preferably, the speed increasing component comprises:

[0013] A speed-increasing gearbox is arranged on the frame;

[0014] A first coupling, through which the input shaft of the speed-increasing gearbox is connected to the rotating shaft of the accompanying measuring motor.

[0015] Preferably, the speed increasing component further comprises:

[0016] A torque measuring transmission component, through which the output shaft of the speed-increasing gearbox is connected to the rotating shaft of the motor under test, and the torque measuring transmission component is configured to detect the rotational speed and output torque of the motor under test.

[0017] Preferably, the first coupling is a double diaphragm coupling.

[0018] Preferably, the torque measuring transmission component is an HBM torque sensor.

[0019] Preferably, the installation assembly comprises:

[0020] A spline shaft, arranged on the torque measuring transmission member;

[0021] A spline sleeve is arranged on the rotating shaft of the motor to be tested, and the spline sleeve and the spline shaft can be adaptively connected;

[0022] A mounting bracket is arranged on the stand;

[0023] The motor under test is detachably connected to the mounting bracket via the mounting member.

[0024] Preferably, the mounting member comprises:

[0025] A mounting plate, arranged on the motor under test;

[0026] A plurality of bolts, the mounting plate is mounted on the mounting bracket through the plurality of bolts.

[0027] Preferably, the installation assembly further comprises:

[0028] A positioning member is disposed between the mounting plate and the mounting bracket and is configured to position the mounting plate.

[0029] Preferably, the positioning member comprises:

[0030] A positioning column, disposed on one of the mounting plate and the mounting bracket;

[0031] A positioning hole is provided on the other of the mounting plate and the mounting bracket, and the positioning column is adapted and snap-fitted with the positioning hole.

[0032] Preferably, a plurality of vibration-damping pads are distributed around the bottom of the platform.

[0033] Beneficial effects of the utility model:

[0034] The new energy vehicle motor test bench provided by the utility model increases the output speed of the accompanying test motor through a speed-increasing component, thereby being able to meet the speed requirements of the tested motor, and further being able to test high-speed motors with speeds exceeding 20,000 rpm. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of the new energy vehicle motor test bench provided by the utility model. Figure 1 ;

[0036] Figure 2 This is a schematic diagram of the structure of the new energy vehicle motor test bench provided by the utility model. Figure 2 .

[0037] In the figure:

[0038] 1. Test bench; 2. Test motor; 3. Mounting assembly; 31. Mounting bracket; 32. Positioning column; 4. Speed-up assembly; 41. Speed-up gearbox; 42. First coupling; 43. Torque transmission component; 5. Vibration-damping pad. DETAILED DESCRIPTION

[0039] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0040] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0041] In the present application, the term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent: the existence of a centrifugal vortex magnetic pump alone, the existence of a centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump at the same time, and the existence of a centrifugal vortex magnetic pump alone. In addition, the character " / " in the present application generally indicates that the objects associated before and after are in an "and / or" relationship.

[0042] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0043] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0044] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0045] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0046] Based on the above, the motor test in the prior art generally uses a companion motor to test the motor under test. Specifically, the motor under test is installed at the companion motor on the test bench. However, the speed of the companion motor used in the existing new energy vehicle motor test bench is generally below 20,000 rpm, so it is impossible to test the high-speed motor exceeding 20,000 rpm.

[0047] To solve the above problems, please refer to Figure 1 and Figure 2 , This embodiment provides a new energy vehicle motor test bench, which is used to test the motor under test. The motor test includes a test bench 1, a test motor 2, a mounting assembly 3 and a speed-up assembly 4. The test motor 2 is arranged on the test bench 1. The mounting assembly 3 is arranged on the test bench 1, and the mounting assembly 3 is configured to carry the motor under test and make the rotating shaft of the motor under test and the rotating shaft of the test motor 2 close to each other. The speed-up assembly 4 is arranged on the test bench 1, and the input end of the speed-up assembly 4 is connected to the rotating shaft of the test motor 2 by transmission, and the output end of the speed-up assembly 4 is connected to the rotating shaft of the test motor, so that the speed of the motor under test during the test is greater than the output speed of the test motor 2. .

[0048] It is understandable that the output speed of the accompanying motor 2 is increased by the speed increasing component 4, so that the speed requirement of the motor under test can be met, and thus the high speed motor with a speed exceeding 20,000 rpm can be tested.

[0049] Specifically, the speed-up assembly 4 includes a speed-up gearbox 41 and a first coupling 42. The speed-up gearbox 41 is arranged on the test bench 1. The input shaft of the speed-up gearbox 41 is connected to the rotating shaft of the accompanying test motor 2 through the first coupling 42. It is understandable that by connecting the input shaft of the speed-up gearbox 41 with the rotating shaft of the accompanying test motor 2 through the first coupling 42, it is possible to compensate for the installation deviation between the shafts, absorb equipment vibration and buffer load impact, overload protection, etc., thereby improving the working stability of the new energy vehicle motor test bench. In this embodiment, the first coupling 42 is a double diaphragm coupling, which can effectively alleviate the impact and vibration generated by the accompanying test motor 2, thereby ensuring the stable operation of the speed-up gearbox to improve the working stability of the new energy vehicle motor test bench. It should be noted that the speed-up gearbox 41 and its working principle are both prior art, so this embodiment will not be repeated. In this embodiment, the speed of the accompanying motor 2 is 16000 rpm, the transmission ratio of the speed-increasing gear is i=2.12, and the speed of the motor being tested is 33000 rpm. In other embodiments, the above three parameters can be selected according to the actual usage scenario, and this embodiment does not make specific requirements and restrictions on this.

[0050] In order to further improve the test accuracy of the new energy vehicle motor test bench, the speed-up component 4 also includes a torque measuring transmission member 43. The output shaft of the speed-up gearbox 41 is connected to the rotating shaft of the motor under test through the torque measuring transmission member 43. The torque measuring transmission member 43 is configured to detect the speed and output torque of the motor under test, so as to more accurately measure the speed and torque of the motor under test. In this embodiment, the torque measuring transmission member 43 is an HBM torque sensor, which has the advantages of compact structure and high load bearing.

[0051] Furthermore, the mounting assembly 3 includes a spline shaft (not shown in the figure), a spline sleeve (not shown in the figure), a mounting bracket 31 and a mounting part (not shown in the figure). The spline shaft is arranged on the torque measuring transmission part 43. The spline sleeve is arranged on the rotating shaft of the motor under test, and the spline sleeve and the spline shaft can be adaptively connected. The mounting bracket 31 is arranged on the bench 1. The motor under test of the mounting part is detachably connected to the mounting bracket 31 through the mounting part. It can be understood that the arrangement of the spline shaft and the spline sleeve can prevent the rotating shaft of the motor under test and the torque measuring transmission part 43 from moving perpendicular to the axial direction, thereby ensuring the stability of the transmission.

[0052] In order to improve the convenience of installing the motor under test on the battery test bench, the mounting member includes a mounting plate and a plurality of bolts. The mounting plate is arranged on the motor under test. The plurality of bolt mounting plates are mounted on the mounting bracket 31 by a plurality of bolts. In order to further improve the convenience of installing the motor under test on the battery test bench, the mounting assembly 3 also includes a positioning member, which is arranged between the mounting plate and the mounting bracket 31 and is configured to position the mounting plate. Specifically, the positioning member includes a positioning column 32 and a positioning hole. The positioning column 32 is arranged on one of the mounting plate and the mounting bracket 31. The positioning hole is arranged on the other of the mounting plate and the mounting bracket 31, and the positioning column 32 is adapted to be snap-fitted with the positioning hole. In order to further improve the convenience of positioning the positioning plate, two positioning columns 32 are arranged, and the number of positioning holes corresponds to the number of positioning columns 32. In this embodiment, the positioning column 32 is arranged on the mounting bracket 31, and the positioning hole is arranged on the positioning plate. Combined with the actual application scenario, the positioning hole on the mounting plate is sleeved on the positioning hole on the mounting bracket 31, that is, the mounting plate can be installed to the preset position on the mounting bracket 31.

[0053] In order to improve the stability of the new energy vehicle motor test bench during operation, a plurality of vibration-damping pads 5 are distributed around the bottom of the bench 1. The vibration-damping pads 5 are preferably vibration-damping pads for machine tools in the prior art, which will not be described in detail.

[0054] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A new energy vehicle motor test bench, used to test the motor under test, characterized in that: include: Stand (1); A companion test motor (2) is arranged on the test stand (1); A mounting assembly (3) is arranged on the test stand (1), wherein the mounting assembly (3) is configured to carry the motor under test and to bring the rotating shaft of the motor under test and the rotating shaft of the accompanying motor under test (2) closer to each other; A speed increasing component (4) is arranged on the test bench (1), the input end of the speed increasing component (4) is drivingly connected to the rotating shaft of the accompanying motor (2), and the output end of the speed increasing component (4) is drivingly connected to the rotating shaft of the motor under test, so that the rotation speed of the motor under test during the test is greater than the output rotation speed of the accompanying motor (2).

2. A new energy vehicle motor test bench according to claim 1, characterized in that: The speed increasing component (4) comprises: A speed-increasing gear box (41) is arranged on the stand (1); A first coupling (42), wherein the input shaft of the speed-increasing gearbox (41) is connected to the rotating shaft of the accompanying measuring motor (2) via the first coupling (42).

3. A new energy vehicle motor test bench according to claim 2, characterized in that: The speed increasing component (4) further comprises: A torque measuring transmission component (43), wherein the output shaft of the speed increasing gear box (41) is connected to the rotating shaft of the motor under test via the torque measuring transmission component (43), and the torque measuring transmission component (43) is configured to detect the rotation speed and output torque of the motor under test.

4. A new energy vehicle motor test bench according to claim 2, characterized in that: The first coupling (42) is a double-diaphragm coupling.

5. A new energy vehicle motor test bench according to claim 3, characterized in that: The torque measuring transmission component (43) is an HBM torque sensor.

6. A new energy vehicle motor test bench according to claim 5, characterized in that: The installation component (3) comprises: A spline shaft, arranged on the torque measuring transmission member (43); A spline sleeve is arranged on the rotating shaft of the motor to be tested, and the spline sleeve and the spline shaft can be adaptively connected; A mounting bracket (31) is arranged on the stand (1); A mounting member, wherein the motor to be tested is detachably connected to the mounting bracket (31) via the mounting member.

7. A new energy vehicle motor test bench according to claim 6, characterized in that: The mounting member comprises: A mounting plate, arranged on the motor under test; A plurality of bolts, wherein the mounting plate is mounted on the mounting bracket (31) via the plurality of bolts.

8. A new energy vehicle motor test bench according to claim 7, characterized in that: The installation component (3) further comprises: A positioning member is arranged between the mounting plate and the mounting bracket (31) and is configured to position the mounting plate.

9. A new energy vehicle motor test bench according to claim 8, characterized in that: The positioning member comprises: A positioning column (32) is arranged on one of the mounting plate and the mounting bracket (31); A positioning hole is provided on the other of the mounting plate and the mounting bracket (31), and the positioning column (32) is adapted to be snap-fitted with the positioning hole.

10. The new energy vehicle motor test bench according to claim 1, characterized in that: A plurality of vibration-damping foot pads (5) are distributed around the bottom of the platform (1).

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