Testing method of simultaneous rotation of inner and outer rings of cylindrical roller bearing

Abstract

The invention discloses a testing method of simultaneous rotation of inner and outer rings of a cylindrical roller bearing; the testing device comprises a substrate, an inner ring revolving system arranged at the upper part to drive a testing bearing to rotate and an outer ring revolving system; the outer ring revolving system comprises an outer ring main shaft, an accompanied testing bearing, an axial force applying bearing and a supporting bearing are sleeved on the outer ring main shaft; the inner ring revolving system comprises an inner ring main shaft, and an axial force applying bearing, the supporting bearing and a radial loading bearing are sleeved on the inner ring main shaft; outsides of two axial force applying bearings are provided with axial force applying devices; the upper part of the radial loading bearing is provided with a radial loading device; the upper part of the accompanied testing bearing is provided with a sensor unit; the testing device further comprises a lubricating system and a measuring and control device; the axial force applying device, the radial loading device and the lubricating system are connected with the measuring and control device. The invention provides a testing method of the simultaneous rotation of inner and outer rings of the cylindrical roller bearing; the method applies the method of rotating the inner and outer rings at the same time, and thus the testing rotate speed can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of bearing tests, in particular to a test method for simultaneous rotation of inner and outer rings of cylindrical roller bearings. Background technique [0002] Bearings are widely used core mechanical basic parts, widely used in various fields of national economy and national defense, and bearings are called "industrial joints" in the national economy. As a standardized and highly specialized product, bearings have complex working conditions. Sometimes even if the shape is the same or even the precision is high, it may not meet the actual requirements. Some special testing and testing equipment must be used to simulate the work. To test whether it meets the required technical requirements. Therefore, in the research and development process of bearings, the test of bearings is a very important link. [0003] The bearing test methods in the prior art can be roughly divided into three categories. One is th...

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Problems solved by technology

One is the test method that the inner ring is rotated and the outer ring is fixed, because most of the working modes of ordinary bearings are that the inner ring is rotated and the outer ring is fixed, so most of the existing bearing testing machines adopt this test method; the second is that the inner ring is fixed and the outer ring is fixed. The test method for outer ring rotation, such as the Chinese patent "CN201010254885.X", discloses a "rolling bearing simulation test method with outer ring rotation and inner ring fixed", focusing on testing the bearing through two aspects of speed and radial load; the third is The test method for the simultaneous rotation of the inner ring and the outer ring, such as the test of the intermediate bearing of the aero-engine, but because this type of bearing is used in a special occasion, the amount of use is small, and the difficulty of design and test is high, so the existing technology is aimed at this type of bearing. There are relatively few testing methods and testing machines for bearings

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