High-temperature high-speed test method for sealed bearing

A test method and technology of sealed bearings, applied in the direction of mechanical bearing testing, etc., can solve problems that have not been reported in the literature, and achieve the effect of increasing the speed range, high heating temperature, and good stress state

Inactive Publication Date: 2010-06-02
LUOYANG BEARING SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technology is still blank in China at present, and the relevant literature has not been reported.

Method used

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  • High-temperature high-speed test method for sealed bearing
  • High-temperature high-speed test method for sealed bearing
  • High-temperature high-speed test method for sealed bearing

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Embodiment Construction

[0023] combine figure 1 with 2The test device for realizing the high-temperature and high-speed test method for sealed bearings consists of a frame 1, a main body base 2, an axial loading cylinder 3, an axial loading piston 4, a test head assembly 5, a main body gland 6, and a radial loading cylinder 7 , a radial loading piston 8, a coupling 9, a protective cover 10, an electric spindle 11, an axial loading oil pipe 12, a vibration sensor 13, a radial loading oil pipe 14 and a temperature sensor 15, and the electric spindle 11 is fixed on the right end of the frame 1 .

[0024] The test head assembly 5 is the core component of the test device, including a left bush 5.1, an axial load sleeve 5.2, a nut 5.3, a cylindrical heater 5.4, a test bearing 5.5, a spacer 5.6, an accompanying test bearing 5.7, a radial load Cover 5.8, spring 5.9, pressure ring 5.10, test spindle 5.11, right bushing 5.12, flange end cover 5.13.

[0025] The electric spindle is connected with the test sp...

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Abstract

The invention relates to a high-temperature high-speed test method for a sealed bearing, which comprises the following steps of: firstly designing a testing device, installing two sets of testing accompanying bearings on a testing main shaft, and pretightening through a set of spring and a pressure ring; installing the two sets of testing bearings at the left end and the right end of the testing main shaft, connecting an electric main shaft through a shaft coupling and additionally covering a shield; starting cooling circulating water, adding cooling water into a loading sleeve, starting a hydraulic station, an electric main shaft variable-frequency driving system and a computer control system, applying 20-30 percent of the maximum axial test load and 20-30 percent of the maximum radial test load to the testing bearings, starting the electric main shaft to reach 15-20 percent of the highest rotational speed and running for 15-25 minutes after the heating temperature reaches a set value, and then sequentially adding axial loads and radial loads and increasing the rotational speed of the electric main shaft so as to reach the highest rotational speed when the power consumption current of the electric main shaft tends to be steady; and carrying out computer data processing for the data and images in different time periods of the whole testing process and working out a test conclusion.

Description

technical field [0001] The invention belongs to the technical field of bearing tests, in particular to a high-temperature and high-speed test method for sealed bearings. Background technique [0002] Sealed bearings are widely used in various motors, household appliances, mechanical equipment, automobiles, motorcycles, aviation and aerospace, weaponry and other fields, especially grease-lubricated sealed bearings in aviation and aerospace, weaponry and other systems generally require Under the harsh working conditions of high speed, high temperature and heavy load, the lubrication state, rotation accuracy, limit working capacity and reliability level of the bearing directly affect the quality of the supporting main engine. [0003] At present, the experimental research on sealed bearings is mainly carried out on the conventional bearing testing machine to test and evaluate the life, grease leakage, temperature rise and dustproof performance. For the test research and analys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/04
Inventor 王健刘苏亚贾虹王芳张同贺
Owner LUOYANG BEARING SCI & TECH CO LTD
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