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A test bench and method for measuring radial working clearance of bearings

A technology of test bench and clearance, which is applied in the direction of measuring device, mechanical measuring device, and electric device, etc. It can solve the problems of poor loading force, inability to measure working clearance, and low data accuracy, and achieve high precision and experimental equipment. Reasonable and reliable, accurate test results

Active Publication Date: 2018-05-08
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are problems such as poor control of loading force, low data accuracy, inability to measure working clearance, and inability to monitor in real time

Method used

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  • A test bench and method for measuring radial working clearance of bearings
  • A test bench and method for measuring radial working clearance of bearings
  • A test bench and method for measuring radial working clearance of bearings

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] The measurement method is a test method based on the relative displacement of the inner and outer rings of the bearing.

[0029] combine figure 1 , a test bench for measuring the radial working clearance of bearings, including a driving motor 1, a motor base 11, a coupling 2, a fulcrum 3, a left support 31, a measured fulcrum 4, an eddy current sensor 49, and an intermediate support 41, hydraulic cylinder 5, rotating shaft 6, fulcrum two 7, right bearing 71 and base 8.

[0030] The coupling 2 is an elastic coupling or a rigid coupling, one end of which is connected to the rotating shaft 6 to drive the rotating shaft 6 to rotate, and the other end is connected to the drive motor 1; the drive motor 1 is connected to the motor base 11 through bolts The upper surface of the fulcrum is fixedly connected; the fulcrum 3 and the fulcrum 7 adopt the sur...

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Abstract

The invention provides a test bench used for measuring a radial bearing work clearance and a method thereof. One end of a shaft coupling of the test bench is connected to a left end of a rotating shaft, and the other end is connected to a driving motor. A fulcrum 1 and a fulcrum 2 are used for supporting the rotating shaft to rotate. A detected fulcrum is placed in a central section of the rotating shaft and is fixed to an intermediate support seat. The intermediate support seat is located at a middle position of a left support seat and a right support seat. A hydraulic cylinder is installed on an upper surface of the intermediate support seat and is placed right below the detected fulcrum. Through hydraulic loading, radial loading to the detected fulcrum is realized. Three eddy current sensors are used for measuring and representing an inner and outer ring vertical radial displacement of a roller bearing, and calculating a radial work clearance of the roller bearing. The test bench is used for realizing vertical radial work clearance measurement of the roller bearing. The test bench and the method have advantages that a radial work clearance during a bearing rotation process can be measured; measurement is accurate and reliable; an experiment apparatus can realize the radial bearing work clearance measurement; and real-time dynamic monitoring is achieved and precision is high.

Description

technical field [0001] The invention relates to the field of bearing tests, in particular to a method for measuring the radial working clearance of a bearing and a test bench thereof. Background technique [0002] Bearings are one of the key components in rotating machinery. The radial clearance of bearings has an important impact on the service life of bearings. If it is too large or too small, it will cause mechanical failure. The radial clearance of the bearing includes the original clearance in the free state before the bearing is installed, the installation clearance after being installed in the main shaft and the bearing seat, and the working clearance formed under the action of load and temperature rise during operation. The working clearance directly and mainly affects the service life of the bearing, which is affected by factors such as installation conditions and working conditions. Therefore, it is of great significance to design a device and method for measuring...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/14G01B5/00
CPCG01B5/0004G01B7/144
Inventor 韩清凯郝旭乔留春周献文温保岗高培鑫
Owner DALIAN UNIV OF TECH
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