Motor overspeed test bench for new energy automobile
By simplifying the structure of the motor overspeed test bench and utilizing components such as a high-speed electric spindle and diaphragm coupling, the complexity of existing motor overspeed test devices has been solved, enabling the verification of the reliability and safety of the motor at high speeds and improving the safety and reliability of the entire vehicle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-22
- Publication Date
- 2026-03-27
AI Technical Summary
Existing overspeed testing devices for new energy vehicle motors have complex structures, making it difficult to effectively evaluate the performance and stability of motors at high speeds.
A simple motor overspeed test bench was designed, which uses components such as a high-speed electric spindle and a diaphragm coupling to verify the motor's performance at high speeds through overspeed testing.
To ensure the reliability and safety of the motor at high speeds, improve the overall safety and reliability of the vehicle, and avoid malfunctions in actual use.
Smart Images
Figure CN224052250U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor testing device technical field, concretely is a kind of motor overspeed test bench for new energy vehicle. BACKGROUND
[0002] With the continuous expansion of new energy vehicle market, the demand of motor test bench is also increasing. Motor test bench is mainly used for comprehensive, systematic performance evaluation of electric motor, simulates various working conditions and operating scenarios, verifies the performance, efficiency, reliability and safety of motor under various conditions. In addition, motor test bench is also applied to the development of new energy vehicle powertrain, including type test, endurance test, electric control system test, performance optimization, etc.
[0003] At present, the important new energy motor test is overspeed test, and the overspeed test is a test method for testing the performance and stability of electric vehicle drive motor. This test aims to evaluate the behavior of the motor when it exceeds the normal speed range to ensure that it is still safe and reliable at high speed. The test process usually includes measuring the power, torque, heat dissipation and vibration characteristics of the motor. The structure of the device for overspeed test in the prior art is generally complex. UTILITY MODEL CONTENT
[0004] (I) technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides a motor overspeed test bench for new energy vehicle, which tests the motor to be tested by high-speed electric spindle, and the test bench structure is simple. Through overspeed test, it can ensure that the design of the motor can withstand the pressure of high speed, so as to improve the safety and reliability of the whole vehicle, and solve the technical problem that the structure of the device for overspeed test in the prior art is complex.
[0006] (II) technical scheme
[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a motor overspeed test bench for new energy vehicle, comprising a base, a bearing seat and a high-speed electric spindle are installed on the base, the high-speed electric spindle is installed and connected with motor adapter flange, the motor adapter flange is installed and connected with diaphragm coupling, the diaphragm coupling is installed and connected with spline, one end of the spline is inserted and connected with bearing body, one end of the bearing body is installed and connected with motor to be tested;The high-speed electric spindle comprises an electric spindle fixed base installed on the base and an electric spindle installed in the electric spindle fixed base, and the shaft end of the electric spindle is connected with the motor adapter flange.
[0008] Further, the base is integrally cast by cast iron, and the base is fixed to the ground by expansion bolts arranged at the bottom.
[0009] Further, six parallel sliding grooves are evenly distributed on the mounting surface of the base.
[0010] Further, a protective cover is arranged above the diaphragm coupling and mounted on the base.
[0011] Further, the bearing body is mounted inside the bearing seat.
[0012] Further, a first adapter plate is mounted on the outer side of the bearing seat, a second adapter plate is mounted on the outer side of the first adapter plate, and a motor flange is mounted on the outer side of the second adapter plate, and the motor to be tested is connected to the motor flange.
[0013] (Three) beneficial effects
[0014] Compared with the prior art, the utility model provides a motor overspeed test bench for new energy automobile, has the following beneficial effects:
[0015] The motor to be tested is tested at high speed by the high-speed motor spindle, the performance and stability of the motor at high speed can be verified, the test bench structure is simple: the overspeed test is carried out by running the motor at a speed exceeding the normal working range, and the performance of the motor at high speed is evaluated. This helps to ensure the reliability and safety of the motor under extreme conditions and avoid failures in actual use. If the overspeed test result is not ideal, it indicates that the motor design or manufacturing has defects and needs to be improved. Through the overspeed test, it can be ensured that the design of the motor can withstand the pressure of high speed, thereby improving the safety and reliability of the whole vehicle. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a perspective view of the motor overspeed test bench for new energy automobile of the utility model;
[0017] Figure 2 It is a perspective view of the motor overspeed test bench for new energy automobile of the utility model; Figure 1 It is a perspective view from another angle;
[0018] Figure 3 It is a perspective view of the motor overspeed test bench for new energy automobile of the utility model; Figure 1 It is a perspective view of the motor overspeed test bench for new energy automobile of the utility model without the protective cover;
[0019] Figure 4 It is a perspective view of the motor overspeed test bench for new energy automobile of the utility model without the protective cover, the base and the bearing seat; Figure 1
[0020] In the figure: 1, base; 2, bearing seat; 3, high-speed motor shaft; 301, motor shaft fixed base; 302, motor shaft; 4, motor adapter flange; 5, diaphragm coupling; 6, spline; 7, bearing body; 8, motor to be measured; 9, sliding groove; 10, protective cover; 11, first adapter plate; 12, second adapter plate; 13, motor flange plate. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0022] Please refer to Figures 1-4 A motor overspeed test bench for new energy vehicles, comprising a base 1, the base 1 is integrally cast from cast iron, the bottom of the base 1 is fixed to the ground through expansion bolts, six parallel sliding grooves 9 are evenly distributed on the mounting surface of the base 1, a bearing seat 2 and a high-speed motor shaft 3 are installed on the base 1, the high-speed motor shaft 3 is connected with a motor adapter flange 4, the motor adapter flange 4 is connected with a diaphragm coupling 5, a protective cover 10 is arranged above the diaphragm coupling 5 and installed on the base 1, the diaphragm coupling 5 is connected with a spline 6, one end of the spline 6 is inserted into a bearing body 7, one end of the bearing body 7 is connected with a motor to be measured 8; the high-speed motor shaft 3 comprises a motor shaft fixed base 301 installed on the base 1 and a motor shaft 302 installed in the motor shaft fixed base 301, the shaft end of the motor shaft 302 is connected with the motor adapter flange 4; the bearing body 7 is installed in the bearing seat 2, a first adapter plate 11 is installed on the outer side of the bearing seat 2, a second adapter plate 12 is installed on the outer side of the first adapter plate 11, a motor flange plate 13 is installed on the outer side of the second adapter plate 12, and the motor to be measured 8 is connected with the motor flange plate 13.
[0023] The working principle of the above-mentioned embodiment is as follows:
[0024] In use, the motor to be tested 8 is connected through the motor flange 12, the high-speed motor spindle 3 is started, the motor shaft of the motor 8 is rotated, from 1500r / min, uniformly accelerated to 2000r / min within 15s-20s, and stably runs for 2 minutes, then the speed is adjusted from 2000r / min, uniformly accelerated by 1000r / min, stably runs for 1 minute at 3000r / min, 4000r / min, 5000r / min, and when exceeding 5000r / min, uniformly accelerated by 500r / min, accelerated within 20s-25s, and stably runs for 0.5 minutes, and the final test speed should be 2.5 times of the rated speed of the engine; through the above-mentioned overspeed test of the motor 8, the performance and stability of the motor at high speed can be verified, and the test bench structure is simple: the overspeed test is to evaluate the performance of the motor at high speed by running the motor at a speed exceeding the normal working range. This helps to ensure the reliability and safety of the motor under extreme conditions, avoiding failures in actual use. If the overspeed test result is not ideal, it means that there is a deficiency in the design or manufacturing of the motor, which needs to be improved. Through the overspeed test, it can be ensured that the design of the motor can withstand the pressure of high speed, thereby improving the safety and reliability of the whole vehicle.
[0025] It should be noted that if in this paper, such as the relationship terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a…" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.
[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A motor overspeed test bench for new energy vehicles, comprising a base (1), characterized in that: The base (1) is provided with a bearing seat (2) and a high-speed motorized spindle (3), the high-speed motorized spindle (3) is connected with a motor adapter flange (4), the motor adapter flange (4) is connected with a diaphragm coupling (5), the diaphragm coupling (5) is connected with a spline (6), one end of the spline (6) is connected with a bearing body (7), one end of the bearing body (7) is connected with a motor (8) to be measured. The high-speed motorized spindle (3) comprises a motorized spindle fixing base (301) provided on the base (1) and a motorized spindle (302) provided in the motorized spindle fixing base (301), and the shaft end of the motorized spindle (302) is connected with the motor adapter flange (4). 2.The motor overspeed test bench for new energy vehicles of claim 1, wherein: The base (1) is integrally cast by cast iron, and the bottom is fixed to the ground by expansion bolts. 3.The motor overspeed test bench for new energy vehicles of claim 1, wherein: Six parallel sliding grooves (9) are uniformly distributed on the mounting surface of the base (1).
4. The motor overspeed test bench for new energy vehicles according to claim 1, characterized in that: A protective cover (10) is provided above the diaphragm coupling (5) and mounted on the base (1). 5.The motor overspeed test bench for new energy vehicles of claim 1, wherein: The bearing body (7) is mounted in the bearing seat (2). 6.The motor overspeed test bench for new energy vehicles of claim 5, wherein: A first adapter plate (11) is mounted on the outer side of the bearing seat (2), a second adapter plate (12) is mounted on the outer side of the first adapter plate (11), a motor flange (13) is mounted on the outer side of the second adapter plate (12), and the motor to be measured (8) is connected to the motor flange (13).