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Bearing axial play measuring method

A measurement method and technology of axial clearance, applied in the direction of mechanical clearance measurement, etc., can solve problems such as difficult quantification, inaccurate measurement results, difficulty in ensuring consistent thrust or pulling force, etc., to achieve consistent size and bearing axial clearance value-accurate effect

Active Publication Date: 2014-08-27
CRRC YANGTZE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the operation of the above two methods, the thrust or pull force applied to the outer ring of the bearing can only be sensed by human hands, which is difficult to quantify, and it is also difficult to ensure that the thrust or pull force applied to the outer ring of the bearing of the same batch is of the same magnitude. It is easy to make the measurement result of the axial clearance of the bearing inaccurate, resulting in that the safety of the vehicle running after the bearing is assembled cannot be guaranteed

Method used

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  • Bearing axial play measuring method

Examples

Experimental program
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Effect test

Embodiment 1

[0049] See attached figure 1 , The bearing axial clearance measuring device provided by Embodiment 1 of the present invention includes a head 1 , a sleeve 2 , a slider 3 , a connecting rod 4 , a dial gauge 5 and a force applying unit 6 . The sleeve 2 includes a side wall and a first end cover 7, the first end cover 7 is arranged on one end of the side wall, the first end cover 7 is provided with a first through hole 8, and the end 1 is fixedly connected to the connecting rod 4 One end a, the end head 1 is located outside the first end cover 7 , the connecting rod 4 passes through the first through hole 8 and forms a first sliding pair with the first end cover 7 . The slider 3 is fixedly connected to the connecting rod 4. The slider 3 is arranged in the sleeve 2 and forms a second sliding pair with the inner wall of the sleeve 2. The slider 3 divides the inner cavity of the sleeve into the first accommodation space. 9 and the second accommodating space 10, the first accommodat...

Embodiment 2

[0052] See attached figure 2 The difference between the bearing axial clearance measuring device provided in Embodiment 2 of the present invention and the bearing axial clearance measuring device provided in Embodiment 1 of the present invention is that the bearing axial clearance measuring device provided in Embodiment 2 of the present invention The force applying unit 6 includes an elastic member 12, which is sleeved on the connecting rod 4, one end of the elastic member 12 is fixedly connected to the first end cover 7, and the other end of the elastic member 12 is fixedly connected to the slider 3, usually Below, the elastic member 12 is in a natural state.

[0053] In this embodiment, the elastic member 12 is a spring. Under the conditions of this embodiment, it is only necessary to compress the spring to the limit position each time a force is applied. According to Hooke's law, the compression amount of the same spring is proportional to the magnitude of the applied force...

Embodiment 3

[0060] See attached image 3 The difference between the bearing axial clearance measuring device provided in the third embodiment of the present invention and the bearing axial clearance measuring device provided in the first embodiment of the present invention is that the implementation of the bearing axial clearance measuring device provided in the third embodiment of the present invention The force unit includes a first magnet 19 and a second magnet 20, the first magnet 19 is fixedly connected to the first end cover 7, the second magnet 20 is fixedly connected to the slider 3, the magnetic properties of the first magnet 19 and the second magnet 20 are the same, Normally, there is no magnetic force between the first magnet 19 and the second magnet 20 .

[0061] When applied, with the attached Figure 6 ~ attached Figure 7 Similarly, the end 1 is stuck on the outer ring of the bearing 24, the measuring head 12 of the dial indicator 5 is against the outside of the hub hole ...

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Abstract

The invention discloses a bearing axial play measuring method, and belongs to the technical field of bearing play measuring. The measuring method is achieved based on a bearing axial play measuring device. The measuring method comprises the steps that an end is clamped on an outer ring of a bearing, and the measuring head of a dial indicator abuts against the outer side of a wheel hub hole; a sleeve is forcefully pushed rightwards, force is transmitted until a force applying unit applies rated push force rightwards, and the end drives the outer ring of the bearing to move rightwards; the measuring value of the bearing axial play can be obtained by reading the number of a pointer of the dial indicator. Due to the fact that the force applied by the force applying unit is controllable, the force applied to outer rings of bearings of the same batch can be consistent by controlling the force applied by the force applying unit, and the measured bearing axial play value is more accurate.

Description

technical field [0001] The invention relates to the technical field of bearing clearance measurement, in particular to a method for measuring the axial clearance of a bearing. Background technique [0002] The vehicle axle is a key component of the running part of the vehicle, which directly affects the operation safety of the vehicle. Therefore, the control of various key parameters in the process of manufacturing the vehicle axle is particularly important. In the vehicle axle press-fitting process, after the bearing press-fit is completed, in order to avoid damage to the internal parts of the bearing during the press-fit process of the bearing and to ensure that each part operates flexibly without jamming, it is necessary to measure the axial clearance of the bearing after the bearing is pressed. The method of measuring the axial clearance of the bearing is usually to apply a rated pulling force or thrust at the outer ring of the bearing, and then measure the relative disp...

Claims

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Application Information

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IPC IPC(8): G01B5/14
Inventor 苗培实江锐锋左云清武永亮胡宏伟秦荣斌吴建强李伟华付秀军唐亮亮于城
Owner CRRC YANGTZE CO LTD
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