A test bench for an electric drive system
Patent Information
- Application Number
- CN202522497516.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-25
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-25
AI Technical Summary
当前方案，电驱系统进行耐久/强度试验时经常由于半轴失效导致试验暂停，甚至电驱系统齿轴等零件损坏，影响试验进展及结果判定，进而导致试验成本增加，影响项目经济性
本实用新型的电驱系统试验台架，设置有配合的转接轴和通用半轴，尤其是通过转接轴的设计，能够实现对于通用半轴的使用，解决由于专用的半轴强度不足，导致耐久/强度等试验过程半轴断裂，进而影响试验进度，试验结果判定等问题。
Smart Images
Figure CN224906949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a test bench for an electric drive system, belonging to the field of electric drive system testing technology. Background Technology
[0002] When conducting bench tests on an electric drive system, a project-specific half-shaft is required to connect the output interface of the electric drive system under test to the motor under test. Figure 2 As shown. For bench tests of electric drive systems, the half-shaft is a secondary component and its strength does not need to be a major concern. However, in actual tests, especially durability / strength tests, half-shaft failure often leads to test suspension, or even damage to components such as the gear shaft of the electric drive system, affecting the progress of the test and the determination of the results.
[0003] The commonly used bench test scheme for electric drive systems is shown in the figure below. The electric drive system is connected to a dedicated test half-shaft, which is then connected to the accompanying test motor via an adapter fixture. With this current scheme, durability / strength tests of the electric drive system frequently necessitate test pauses due to half-shaft failure, and sometimes even damage to components such as the drive system's gear shaft. This affects test progress and result determination, leading to increased test costs and impacting project economics. Utility Model Content
[0004] The purpose of this invention is to provide a test bench for an electric drive system, which solves the above-mentioned problems through the combined use of an adapter shaft and a universal half-shaft.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A test bench for an electric drive system includes an electric drive system. The output end of the electric drive system is connected to a test motor via an adapter shaft, a universal half-shaft, and an adapter fixture. The output end of the electric drive system is connected to the adapter shaft, the other end of the adapter shaft is connected to the universal half-shaft, the other end of the universal half-shaft is connected to the adapter fixture, and the other end of the adapter fixture is connected to the test motor.
[0006] A further improvement to the technical solution of this utility model is that the electric drive system has two output terminals, and the connection structure of the two output terminals is consistent.
[0007] Due to the adoption of the above technical solution, the technical effects achieved by this utility model are as follows: The electric drive system test bench of this utility model is equipped with a matching adapter shaft and a universal half shaft. In particular, the design of the adapter shaft enables the use of the universal half shaft, solving the problem that the half shaft breaks during durability / strength tests due to insufficient strength of the dedicated half shaft, which in turn affects the test progress and the judgment of test results.
[0008] This technical solution, through the combined use of adapter shafts and universal half-shafts, can reduce testing costs and enhance product competitiveness. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural diagram of a traditional technical solution; Among them, 1. Electric drive system, 2. Adapter shaft, 3. Universal half shaft, 4. Adapter tooling, and 5. Test motor. Detailed Implementation
[0010] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0011] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0012] This utility model is a test bench for an electric drive system, which is a device for testing electric drive systems.
[0013] This device is used to test the electric drive system 1. For example... Figure 1 As shown, the output end of the electric drive system 1 is connected to the test motor 5 via a series of connections including the adapter shaft 2, the universal half-shaft 3, and the adapter fixture 4. Specifically, the output end of the electric drive system 1 is connected to one end of the adapter shaft 2, and the other end of the adapter shaft 2 is connected to the universal half-shaft 3. The other end of the universal half-shaft 3 is connected to the adapter fixture 4, and the other end of the adapter fixture 4 is connected to the test motor 5.
[0014] Among them, electric drive systems are typically single reducer systems, motor & reducer combined electric drive systems, and motor & reducer & controller combined electric drive systems.
[0015] One end of the adapter shaft connects to the output interface of the electric drive system, and the other end connects to a universal half-shaft. This adapter shaft design solves the problem of half-shaft breakage affecting test progress and judgment. It also enables the use of a universal half-shaft for different electric drive systems, reducing bench complexity and improving bench testing capabilities. The two connection ends of the adapter shaft are adapted to the connection structure of the electric drive system output end and the connection structure of the universal half-shaft, respectively.
[0016] The universal half-shaft is a universal component with a stronger load-bearing capacity. The universal half-shaft is a universal component in this technical field, and its structure is a universal structure.
[0017] One end of the adapter fixture connects to the universal half-shaft, and the other end connects to the test motor. The adapter fixture is used to connect the universal half-shaft and the test motor. The two connecting ends of the adapter fixture are adapted to the connection structures of the universal half-shaft and the test motor, respectively.
[0018] The test motor is a motor used to provide load, usually a high-power motor, to improve the bench testing capability.
[0019] The test bench, based on the fact that the electric drive system 1 has two output terminals, is also equipped with two sets of connection structures and a test motor, and the connection structures of the two output terminals are identical.
[0020] This technical solution addresses the problem of half-shaft breakage during durability / strength tests due to insufficient strength of dedicated half-shafts, which in turn affects test progress and result determination. This reduces testing costs and enhances product competitiveness.
[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A test bench for an electric drive system, comprising an electric drive system (1), characterized in that: The output end of the electric drive system (1) is connected to the test motor (5) via the adapter shaft (2), the universal half shaft (3) and the adapter fixture (4); the output end of the electric drive system (1) is connected to the adapter shaft (2), the other end of the adapter shaft (2) is connected to the universal half shaft (3), the other end of the universal half shaft (3) is connected to the adapter fixture (4), and the other end of the adapter fixture (4) is connected to the test motor (5).
2. The test bench for an electric drive system according to claim 1, characterized in that: The electric drive system (1) has two output terminals, and the connection structure of the two output terminals is the same.