Variable-size RV reducer planetary gear stress measurement device and method

Abstract

The invention discloses a variable-size RV reducer planetary gear stress measuring device and method. The device comprises a strain measuring device, a planetary gear mechanism, a planetary gear adjusting mechanism, a planetary gear carrier displacement mechanism, a gear ring bracket displacement mechanism, a sun gear shaft displacement mechanism, a torque braking device and a torque driving device. The strain measuring device is used for measuring strain of a sun gear and a planetary gear of the planetary gear mechanism, the planetary gear adjusting mechanism is connected with the planetary gear and used for adjusting the position of a planetary gear shaft, and the planetary gear carrier displacement mechanism is arranged on the lower portion of the torque braking device and used for adjusting horizontal displacement of a planetary gear carrier. The sun gear shaft displacement mechanism is arranged on the lower portion of the torque driving device and used for adjusting horizontal displacement of a sun gear shaft and the torque driving device, and the gear ring bracket displacement mechanism is connected with a gear ring of the planetary gear mechanism and used for adjusting vertical displacement of the gear ring. According to the invention, measurement of tooth root stress of planetary gears with different sizes and different specifications is realized.

Description

Technical field [0001] The present invention relates to the field of gear measuring techniques, and more particularly to a variable size RV reducer planetary gear stress measuring device and method. Background technique [0002] The planetary gear drive has many unique advantages compared to ordinary gear transmission. The most significant feature is that power splitting can be performed when power is transmitted, and the input shaft and the output shaft are on the same horizontal line. So the planetary gear drive is now widely used in a reduction, a speed, and a transmission device in various mechanical transmission systems. Among them, the gear replacement component is directly determined by the dynamic characteristics of industrial robots, carrying characteristics, and motion positioning accuracy of industrial robots. RV (Rotary VECTOR) speed replacement has a series of advantages such as high drive ratio, small mass, long life, high transmission accuracy, high transmission ef...

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Problems solved by technology

[0003] At present, the measurement of planetary gear strain mainly relies on the photoelastic method and the electrical measurement method. Among them, the test system required by the electrical measurement method is relatively simple, but the actual planetary gearbox is difficult to provide enough installation space for the resistance strain gauge. There are great difficulties in the installation process, and it is difficult to share a set of measuring equipment for planetary gears of different sizes. To measure the stress of planetary gears of different sizes, different test benches need to be configured, and the cost is too high

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