Connecting method for performing back-to-back loading test on gear cases in same test bench

Abstract

The invention discloses a connecting method for performing a back-to-back loading test on gear cases in the same test bench. A first motor and a second motor are fixed to the test bench, the output shaft center distance D1 between an output shaft of the first motor and an output shaft of the second motor is obtained, an output shaft of the main-testing gear case is connected with an output shaft of the auxiliary-testing gear case, the input shaft center distance D2 between an input shaft of the main-testing gear case and an input shaft of the auxiliary-testing gear case is obtained, the input shaft of the main-testing gear case is connected with the output shaft of the first motor through a first universal spindle coupling, and the input shaft of the auxiliary-testing gear case is connected with the output shaft of the second motor through a second universal spindle coupling. When the D2 is larger than the D1, the first universal spindle coupling is arranged to form a planar M shape, and the second universal spindle coupling is arranged to form a planar W shape; when the D2 is smaller than the D1, the first universal spindle coupling is arranged to form a planar W shape, and the second universal spindle coupling is arranged to form a planar M shape. According to connecting method, rapid connection of the gear cases can be achieved, and the time for motor position adjustment is saved.

Description

technical field [0001] The invention relates to a method for connecting a gearbox on a test bench, which is suitable for back-to-back loading tests of gearboxes, especially for back-to-back loading tests of large gearboxes such as wind power gearboxes. Background technique [0002] In the existing gearbox back-to-back loading test connection scheme, the axis of the output shaft of the motor is coaxial with the axis of the input shaft of the gearbox, that is, the center distance D1 between the output shafts of the two motors (see figure 1 ) is equal to the center distance D2 between the input shafts of the two gearboxes (see figure 2 ). With the development of serialization and product diversification of gearboxes, the center distance D2 between the input shafts of two gearboxes is also different, and the loading test bench is limited, so it is usually necessary to test different gears on the same test bench. Box back-to-back loading test. When performing back-to-back con...

AI Technical Summary

Problems solved by technology

However, adjusting the center distance D1 between the output shafts of two motors requires moving the overall position of the motors. Back-to-back loading tests of different gearboxes on the test bench

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