A ball bearing oil film thickness measuring device

A technology of oil film thickness and measuring device, which is applied in the field of rolling bearing lubrication to achieve the effects of easy observation and adjustment, reduced frictional resistance, and accurate and fast measurement

Active Publication Date: 2019-11-08
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Difficult to measure the oil film thickness directly due to the small space inside the bearing

Method used

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  • A ball bearing oil film thickness measuring device
  • A ball bearing oil film thickness measuring device
  • A ball bearing oil film thickness measuring device

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Experimental program
Comparison scheme
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Embodiment Construction

[0025] The specific implementation process of the present invention will be further explained below in conjunction with the accompanying drawings.

[0026] Such as Figure 1 to Figure 2 As shown, a ball bearing oil film thickness measurement device includes a spindle system, a micro-ultrasonic sensor and a nozzle support system, a rolling body spin angle adjustment system, and a loading and pressure detection system;

[0027] The main shaft system includes a main shaft 15, the main shaft 15 is connected with the servo motor 20 through the plum blossom elastic coupling 19, the main shaft 15 is driven by the servo motor 20, the servo motor 20 is fixed by the motor bracket 22 and the screw 20, and the main shaft 15 is passed through the left bearing The inner bearing of seat 1 and the inner bearing of the right bearing seat 16 are supported, and the inner bearing of the right bearing seat 16 is positioned by the shaft shoulder and the bearing seat end cover 17 with the screw 18 a...

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Abstract

A ball bearing oil film thickness measurement device comprises a main shaft system, a miniature ultrasonic sensor, a nozzle supporting system, a rolling element spinning angle adjusting system and a load and pressure detection system. By arranging an annular groove on an inner ring, the miniature ultrasonic sensor is placed to measure the oil film thicknesses at the different positions of the inner ring. On the other hand, by changing the surface roughness of the inner ring and a rolling ball, or increasing the textures of various forms on the outer surface of the inner ring, such as the recesses, the stripes, the grids, etc., and by using the inner ring and the rolling ball combined by different materials, the different contact states and spinning states of the rolling element of a bearing are simulated, and the influence of the surface quality of the contact areas, the spinning state of the rolling element and the rolling ball and inner ring materials on an oil film formation effect is researched. An experimental device of the present invention provides a new thinking for the oil film thickness measurement under the different materials, different surface qualities and different contact and spinning states of the rolling ball and a rolling way, and the experiment results have a certain guidance significance for the improvement and design of the contact surface of the rolling bearing.

Description

technical field [0001] The invention belongs to the technical field of rolling bearing lubrication, in particular to a device for measuring the oil film thickness of a ball bearing. Background technique [0002] There are many lubrication methods for rolling bearings, such as oil injection lubrication, oil-air lubrication, etc. The common feature is that a certain thickness of lubricating oil film is formed between the rolling elements and the inner and outer rings of the bearing to reduce friction and heat in the contact area and ensure good bearing performance. Operating status. If the oil film is difficult or broken due to poor lubrication, the internal friction and wear of the bearing will increase, and the heat generation will increase sharply, which will greatly affect the service performance and service life of the bearing. Therefore, the monitoring technology of oil film characteristics in bearing contact zone under service conditions is very important. Due to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B17/02
CPCG01B17/025
Inventor 闫柯刘译励朱永生张进华洪军
Owner XI AN JIAOTONG UNIV
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