Device and method for measuring gear meshing backlash through electrical noise

Abstract

The invention relates to a device and method for measuring gear meshing backlash through electrical noise and belongs to the technical field of testing of space low-speed pointing mechanisms. According to the device, a fixed part of a gear drive assembly is used as one end of a direct current transmission circuit; a rotating part of the gear drive assembly is used as the other end of the direct current transmission circuit. The gear meshing backlash is corrected by collecting electrical noise values obtained in the gear drive process. By means of the device, a measured assembly does not need to be dismantled, and the device can be popularized to other gear drive assemblies composed of conductors to achieve real-time lossless measurement. Currently, the device is already applied to the testing process of solar array drive mechanisms.

Description

technical field [0001] The invention relates to a device and method for measuring gear meshing backlash by using electric noise, and belongs to the technical field of testing space low-speed pointing mechanisms. The device uses the fixed part of the gear transmission assembly as one end of the direct current transmission circuit, and the rotating part of the gear transmission assembly as the other end of the direct current transmission circuit, and converts the meshing backlash by collecting the electrical noise value during gear transmission. The device does not need to disassemble the tested component, and can be extended to gear transmission components composed of other conductors to realize real-time non-destructive testing. At present, the device has been applied in the test process of the solar panel driving mechanism. Background technique [0002] At present, the most commonly used method for measuring gear backlash is the lead plug method. A small amount of lead wei...

AI Technical Summary

Problems solved by technology

This method usually needs to make a special adapter tool, so it can only be measured during the product assembly process. When the product is assembled, due to the installation method, work space and other factors, this method is helpless when these test devices cannot be connected externally.

[0003] For space low-speed pointing mechanisms, due to the small modulus of commonly used high-precision gears, and the conditions for disassembly inspection or installation of rotation angle testing equipment are no longer available after the product is assembled, the conventional rotation angle measurement method cannot meet the gear backlash measurement of this type of mechanism needs

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