Numerical control system based center distance variable gear contact fatigue test bed

Abstract

The invention relates to a numerical control system based center distance variable gear contact fatigue test bed, and belongs to the technical field of numerical control. The test bed comprises a support assembly, a feeding movement assembly, a transmission assembly, a detector, a test gear case and a tested gear set, a torque sensor is positioned in an input shaft, and the torque of the input shaft is detected and compared with a set torque to compensate or reduce torque adjustment. In the feeding movement assembly, a carriage is positioned in different positions of a guide rail via a servo motor and a ballscrew, the center distance between two pairs of engaged gears is changed, and gears of different modulus are tested. A laminated push-and-pull structure on a casing of the test gear case enables that two half-open type test gear cases form an enclosed space, and oil is prevented from splashing and broken teeth are prevented from flying off during operation of the test bed. A vibration sensor can collect vibration signals of the different modulus of gears in the contact fatigue intensity test.

Description

technical field [0001] The invention belongs to the technical field of numerical control and relates to a variable center distance gear contact fatigue test bench based on a numerical control system. Background technique [0002] At present, the variable center distance method of gears is used in contact fatigue tests for gears with different modules and different pitch circle diameters to achieve the purpose of data collection. Then deep learning can be used to analyze and process the data, and finally achieve the purpose of gear contact fatigue life prediction. [0003] In the existing related technology, the method of adding a custom-made thickness block between two semi-open test gearboxes is usually used to change the center distance between two pairs of meshing gears. However, it is necessary to calculate and process pads with different thicknesses to realize different gear center distance tests, which wastes manpower and materials. [0004] If it is necessary to obs...

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Problems solved by technology

[0005] Whenever different gear center distance tests are carried out, pads of different thicknesses need to be replaced. When replacing the pads, due to the heavy weight of the test gearbox, mechanical equipment or four manpower are required to lift the test gearbox as well as the operation of observing the progress of the test. operation, which may cause potential danger, and because there are many steps in the operation of replacing pads, errors may occur

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