System for experiment for testing locked-rotor performance of motor

Abstract

The invention provides a system for an experiment for testing the locked-rotor performance of a motor. The system comprises a locked-rotor clamp assembly, a driving device and a torque flange, wherein the locked-rotor clamp assembly comprises a locked-rotor base, a brake disc and a torque flange mounting disc; the brake disc is fixedly connected with the torque flange mounting disc; the brake disc is provided with multiple concentrically arranged arc-shaped through grooves; the brake disc is fixedly arranged at the locked-rotor base through multiple bolts and the arc-shaped through grooves; the driving device drives the brake disc to rotate; the torque flange mounting disc is fixedly connected with the torque flange. By using the system for the experiment for testing the locked-rotor performance of the motor, which is provided by the invention, the defect that a power detector is needed to carry out a locked-rotor test is solved; the locked-rotor toque characteristic of any point can be efficiently tested through a locked-rotor testing clamp; further, the disassembly and assembly complexity of a to-be-experimented motor is avoided through the cooperation between a step motor and the locked-rotor testing clamp; the damage to the power detector can be avoided; the system has the advantages that the disassembly and the assembly are convenient, the degree of automation is high, the requirement of a laboratory on a locked-rotor testing experiment for the motor can be met, and the like.

Description

technical field [0001] The invention belongs to the technical field of motor detection, and in particular relates to a system for testing motor stall performance experiments. Background technique [0002] The drive motor system is the core component of the power output of electric vehicles, and it is a mandatory inspection item for new vehicle product announcements. It is carried out according to GB / T18488-2006 "Electric Vehicle Motors and Their Controllers", "Stall Torque and Stall Current" It is one of the test contents, which is used to investigate the ability of electric vehicles to start on flat ground or slopes and the system protection function. In addition, the locked-rotor test can also be used to test the "static torque ripple" of the motor system. By adjusting the angle of the output shaft, the range of torque fluctuations at different output angles of the motor at rest can be tested, and the motor can be judged by the size of the torque ripple. And the pros and ...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims to propose a system for testing motor stall performance experiments to solve the problems that existing stall test devices are easy to cause damage to the dynamometer, inconvenient disassembly and assembly of the motor to be tested, and low detection efficiency.

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