Revolution and rotation planetary structure test device and method for planetary reducer

Abstract

The invention belongs to the field of planetary reducer testing, and provides a revolution and rotation planetary structure testing device and method for a planetary reducer. The planetary structure test device comprises a driving system, a planetary reducer, a planetary structure test device, a planetary structure non-centering device, a shell non-centering device, a torque load simulation device and a test bench base. The driving system is connected with the planetary reducer through the main shaft and transmits rotating power to the planetary reducer. The planetary reducer is connected with the torque load simulation device to realize torque composite loading; the lower part of the planetary reducer is provided with a housing non-centering device, the planetary reducer is internally provided with a planetary structure testing device, and an internal planetary structure is provided with a planetary structure non-centering device. According to the invention, the problem that the planetary gear in a running state is difficult to measure in revolution and autorotation states is solved, and the tested data can reveal the association between the mechanical properties and thermal properties of the gear and the bearing.

Description

technical field [0001] The invention relates to the field of planetary reducer testing, in particular to a planetary structure testing device and method for revolution and rotation for a planetary reducer. Background technique [0002] Planetary gear reducer has the advantages of small size, light weight, large speed ratio and high efficiency, so it has been widely used in aviation, ships, automobiles, hoisting machinery and other mechanical transmissions. Its planetary structure is tightly combined with an inner gear ring on the gearbox housing. There is a sun gear driven by external power in the center of the inner gear ring, and there is a set of planetary gears composed of multiple gears in between. The group of planetary gears is supported by the output shaft, the ring gear and the sun gear; during transmission, the input shaft drives the sun gear, and the sun gear drives the planetary gears combined on the planet carrier to run. The entire group of planetary gears rot...

AI Technical Summary

Problems solved by technology

However, there is a lack of simulation devices and tests for misalignment caused by planetary structure assembly, and the alignment between the input shaft and the housing assembly.

[0004] At the same time, in terms of testing: For example, the patented collision test device (CN202110740277.8) for bearing rolling elements and cages of planetary gears is aimed at cages. From the perspective of motion characteristics, the speed of the cage is the revolution speed n m and bearing inner ring speed n i , Outer ring speed n e There is a big difference, the following relationship exists between them: For example, the patented static load fatigue test device for yaw reducer test bench (201910079898.9) and the transmission efficiency test device for planetary transmission reducer (201420152113.9) all install sensors on the planetary gearbox to obtain signals, only for the planetary gearbox. The overall test is carried out; for example, a patented method and system for detecting local faults of the sun gear of a planetary gearbox (201610421538.9), and a test system for uneven load coefficient of planetary gear transmission (CN202011567404.0) are aimed at the sun gear, which only has rotation Movement; For example, the patent is used for the collision test of the bearing rolling body and the cage of the planetary gear (CN202110740277.8), and the planetary bearing collision test system (CN202110691763.5) is aimed at the bearing rolling body and the cage; lack of planetary gears for planetary reducers Structural testing device and method

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