Gearbox test bed

Abstract

The invention discloses a gearbox test bed comprising a bed platform, a power control box, a hydraulic station and a mechanical oil tank. A motor, a torque sensor, a mounting block, a floating holder and a drive axle are sequentially disposed on the bed platform from left to right. A motor output shaft of the motor is connected with a left input shaft of the torque sensor through a coupling. A right output shaft of the torque sensor is connected with the left end of a spindle hinged to the mounting block, through another coupling. A clutch assembly is fixed at the right end of the spindle. The motor, the torque senor, the mounting block, the floating holder and the drive axle are disposed on the bed platform, the motor is subjected to variable frequency control through a controller and the power control box so as to achieve actual simulation run, whether noise produced by a gearbox normally operating meet the requirements or not can be detected, the noise produced by the gearbox in vehicle acceleration or stopping can also be detected, product quality can be controlled effectively, and ex-factory pass rate is increased.

Description

Technical field: [0001] The invention relates to the technical field of gearbox detection, and more specifically relates to a gearbox test bench. Background technique: [0002] At present, domestic detection devices for mechanical gearboxes such as forklifts generally use the motor to drive the input shaft of the gearbox to rotate to drive the gears in the gearbox to rotate, so that the gearbox can run normally, so as to check the sound of the gears running when the gearbox is working. Whether there is any abnormality, usually there are multiple pairs of gears working at the same time in the gearbox, and the driving gear drives the driven gear. The inspectors judge whether the product is qualified according to the noise level when the gearbox is running and whether there is any abnormal sound. [0003] However, when the gearbox is installed in a forklift and other equipment to run, when the vehicle decelerates or stops at high speed, that is, the input power of the gearbox h...

AI Technical Summary

Problems solved by technology

[0003] However, when the gearbox is installed in a forklift and other equipment to run, when the vehicle decelerates or stops at high speed, that is, the input power of the gearbox has been cut off, and the vehicle is still running due to the inertia, and the inertia acts on the drive axle through the drive axle. The output shaft of the gearbox keeps the gearbox still in operation, but at this time the meshing surface of the driving gear and the driven gear in the gearbox has changed, and the original meshing surface (working surface) of the driving gear and the driven gear has become a non-meshing surface , the non-meshing surface becomes the meshing surface. When the precision of the non-working surface of the gear is not good, it will produce a lot of noise. The gearbox with this phenomenon cannot meet the user's requirements and is a substandard product. However, this substandard Product inspectors cannot detect in the existing detection devices, which reduces the detection effect. At the same time, this makes many unqualified products flow out, affecting the quality of products

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