A spindle bearing impact test bench

Abstract

The present invention proposes a spindle bearing impact test bench, which includes a power system, a test bench main body, a loading system, and a lubrication system; the power system includes a drive motor and a speed-up gearbox; the test bench main body includes a bearing test chamber; the bearing The test chamber includes a test shaft, a test bearing, a radial loading mechanism and an axial loading mechanism; the drive motor, a speed-up gearbox, and the test shaft are connected in sequence; the radial loading mechanism and the axial loading mechanism are connected to the loading system; The loading system includes an axial loading servo cylinder and a radial loading servo cylinder; the shaft and the radial loading servo cylinder are connected to the same hydraulic station, and are connected to a force sensor, a displacement sensor and a servo valve; The shock load and static load can simulate the alternating load of the main shaft bearing in the actual working condition, and can improve the control accuracy of the load, so that the test results are more real, accurate and effective.

Description

technical field [0001] The invention relates to the technical field of aero-engines, in particular to an aero-engine main shaft bearing test device. Background technique [0002] As an important supporting part of the aero-engine, the main shaft bearing of the aero-engine has a harsh working environment and needs to work for a long time under high-speed, high-temperature, high-pressure and alternating load conditions. The reliability of the bearing seriously affects the performance of the aero-engine. If the failure causes the aeroengine to not work normally, it may lead to a serious air accident. Therefore, in the manufacturing process, it is necessary to test the durability, fatigue life, and other indicators of the main shaft bearing, and analyze the problems existing in the product according to the test results. Targeted improvement; the main shaft bearing test bench in the prior art mainly tests the static load of the main shaft bearing, and does not carry out correspon...

AI Technical Summary

Problems solved by technology

[0002] As an important supporting part of the aero-engine, the main shaft bearing of the aero-engine has a harsh working environment and needs to work for a long time under high-speed, high-temperature, high-pressure and alternating load conditions. The reliability of the bearing seriously affects the performance of the aero-engine. If the failure causes the aeroengine to not work normally, it may lead to a serious air accident. Therefore, in the manufacturing process, it is necessary to test the durability, fatigue life, and other indicators of the main shaft bearing, and analyze the problems existing in the product according to the test results. Targeted improvement; the main shaft bearing test bench in the prior art mainly tests the static load of the main shaft bearing, and does not carry out corresponding test design for the impact load of the main shaft bearing

Images