Axial force applying device for test of high-power direct-current motor
A technology of AC and DC motors and applying devices, which is applied in the direction of motor generator testing, etc., can solve the problems that the running state cannot be provided and cannot be reproduced, and achieve the effects of reasonable and reliable structural design, convenient operation, and simple structure
Active Publication Date: 2015-02-11
CRRC YONGJI ELECTRIC CO LTD
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Problems solved by technology
[0006] In order to solve the problems that the test of the existing high-power AC-DC motor cannot be reproduced, the running state of the motor is detected when the motor is subjected to the axial force, and the test data cannot be provided, the present invention provides a high-power AC-DC motor test for applying axial force device
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[0012] Axial force application device for high-power AC / DC motor test, including test motor coupling 1 and load motor coupling 2 connected by connecting pins, the edge of test motor coupling 1 is different with its axis as the center There are several rotating surfaces set at an angle, and the diameter of the test motor coupling 1 is larger than the diameter of the load motor coupling 2, and any rotating surface of the test motor coupling 1 is closely attached to the bearing outer ring 3, and the bearing outer ring 3 The shaft center of the shaft is provided with a fixed booster bearing 4, the shaft center of the booster bearing 4 is fixed with a force arm bar 6 with a rotating shaft 5 in the middle, and the other end of the force arm bar 6 is connected with a spring scale 7 arranged perpendicular to it. , The other end of the spring scale 7 is connected with a transition rod 8, the other end of the transition rod 8 is fixed with a lead screw 9, and the lead screw 9 is covered ...
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The invention particularly discloses an axial force applying device for the test of a high-power direct-current motor, solving problems that a running state of the motor applied with an axial force can not be represented and detected and test data can not be provided in the existing high-power alternating-current and direct-current motor test. Multiple rotary surfaces which take a shaft center as a center of circle and are arranged at different angles are arranged on edges of a test motor shaft coupling; the diameter of the test motor shaft coupling is greater than that of a load motor shaft coupling; an outer bearing ring clings to any one rotary surface of the test motor shaft coupling; a force applying bearing fixed with the outer bearing ring is arranged at a shaft center of the outer bearing ring; a force arm rod with a rotary shaft penetrating in the middle is fixed in a shaft center of the force applying bearing; a spring scale perpendicular to the force arm rod is connected to the other end of the force arm rod; a transitional rod is connected to the other end of the spring scale; a screw rod is fixed at the other end of the transitional rod; and a screw rod seat is sleeved on the screw rod. The axial force applying device is used for observing and detecting the running state of the motor applied with the axial force in real time.
Description
technical field [0001] The invention relates to an auxiliary device for a test of a high-power AC-DC motor, in particular to an axial force applying device for a test of a high-power AC-DC motor. Background technique [0002] In high-power, high-speed, heavy-duty traction transmission systems, helical gears are widely used in the shaft extension of traction motors due to their good meshing performance, large coincidence coefficient, stable transmission, low vibration, and compact structure. However, since the helical gear load has a large axial reaction force on the traction motor shaft, the bearing of the motor that uses the helical gear to transmit torque bears a large axial force. [0003] It is very important to carry out a load test with a certain axial force on the traction motor with axial force in the actual operation process, detect the running state of the motor bearing, and provide accurate test equipment for the design, selection, assembly and lubrication of the ...
Claims
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IPC IPC(8): G01R31/34
Inventor 张永奎姬惠刚尚诗贤朱涛孟语灵
Owner CRRC YONGJI ELECTRIC CO LTD