A Large Bearing Test Bench with Static Pressure Loading and Closed Structure

Abstract

The invention belongs to the technical field of bearing test and relates to a bearing test table, which consists of four parts, namely a closed mechanical structure, a hydrostatic loading system, a driving system and a measurement and control system, wherein the closed mechanical structure consists of a test bearing, a test table end cover, a connecting part, a vertical column, a base and the like, and a loading disk, the test bearing, the end cover, the vertical column and the base form an internal closed structure; the hydrostatic loading system realizes radial loading, axial loading and overturning moment loading by an axial loading seat and an oil cylinder and a radial loading seat and the oil cylinder and performs application according to a test bearing load spectrum; a motor, which is fixed on the base, of the driving system drives the loading disk and the test bearing to rotate by a speed reducer and a driving gear; and the measurement and control system comprises a sensor, a computer, a control cabinet, the sensor, an actuator and the like. By using a floating hydrostatic loading technology, the influence of a test table bearing on the performance data of the test bearing is reduced. The test table is high in rigidity, small in volume and low in cost.

Description

technical field [0001] The invention belongs to the technical field of bearing tests and relates to a large-scale bearing test stand. Background technique [0002] Bearings play an extremely important role in the construction of the national economy. Bearings with a diameter of more than 1000mm are widely used in wind power generation, railway vehicles, metallurgical mines, petroleum machinery, construction machinery and other industries, and their performance and reliability will directly affect the The performance and reliability of mechanical equipment, especially the slewing ring bearings, bear a large overturning moment, so the bearings are required to have high motion performance, long life and high reliability. [0003] The bearing test bench is the key equipment for testing the performance and reliability of the bearing. It can have a correct evaluation of the performance of the bearing to be put into use, grasp and correct the design parameters in time, and analyze ...

AI Technical Summary

Problems solved by technology

Most of the existing bearing test benches adopt a horizontal structure. The life test and performance test of the test bearing are carried out by using the installation and loading method of the paired rolling bearings. The detection accuracy is low, especially the specific performance of a single bearing cannot be detected. More and more stringent test requirements, especially for yaw, pitch and main bearings of wind turbines, and slewing ring bearings for lifting equipment in industries such as ships, construction, and ports

Images