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Bearing inner and outer ring and rolling body roundness detection tool

A technology for detecting tooling and bearing inner rings, applied to measuring devices, instruments, etc., can solve problems such as poor versatility, low work efficiency, and high labor intensity, and achieve the goals of improving measurement accuracy, shortening adjustment operation time, and improving work efficiency Effect

Active Publication Date: 2021-10-29
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor versatility, low work efficiency and high labor intensity of the current detection methods for bearing roundness, the present invention provides a roundness detection tool for bearing inner and outer rings and rolling elements

Method used

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  • Bearing inner and outer ring and rolling body roundness detection tool
  • Bearing inner and outer ring and rolling body roundness detection tool
  • Bearing inner and outer ring and rolling body roundness detection tool

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Such as figure 1 As shown, this embodiment provides a roundness detection tool for the inner ring of a bearing, including a chassis 101, a central hole 201 opened in the middle of the chassis from top to bottom, and an outer stepped shaft;

[0033] The upper part of the outer stepped shaft is coaxial and connected from top to bottom with five stepped upper shaft parts 301 with diameters ranging from small to large. Different upper stepped shaft parts 301 are matched with inner circles of bearing inner rings with different diameters. The middle part of the outer stepped shaft is provided with a ring part 401 extending radially outward, and three bolts 1501 are threaded on the ring part 401 from top to bottom, and the free end of the screw rod of each bolt 501 can be connected with the The ring platform part-701 on the upper surface of the chassis-101 is in frictional contact fit. The lower part of the outer stepped shaft is coaxial and connected from top to bottom with t...

Embodiment 2

[0039] Such as figure 2 , 3 As shown, this embodiment provides a tool for detecting the roundness of the outer ring of a bearing, including a chassis 2 102, a central hole 202 opened in the middle of the chassis from top to bottom, and an inner stepped shaft;

[0040] The upper part of the inner stepped shaft is coaxial and is provided with four or three stepped holes 302 with diameters from large to small (such as figure 2 , 3 As shown), different stepped holes 302 are matched with the outer circles of bearing outer rings with different diameters. The middle part of the inner stepped shaft extends radially outwards with a ring part 2 402, and the ring part 2 402 is formed from the upper There are three bolts 2 502 threaded to the bottom, and the free end of the screw of each bolt 2 502 can be frictionally contacted with the ring platform part 2 702 on the upper surface of the chassis 2 102. The bottom is connected with two stages of lower stepped shaft part 2 602 with di...

Embodiment 3

[0046] Such as image 3 As shown, this embodiment provides a roundness detection tool for bearing spherical rolling bodies, including a chassis three 103, and a central hole three 203 in the middle of the chassis three 103 from top to bottom; the upper end of the hole body of the central hole three 203 It can be supported and matched with the spherical rolling body of the bearing.

[0047] Specifically, in order to reduce the weight of the chassis 3 103, in this embodiment, an annular weight-reducing notch 403 is preferably provided on the periphery of the center hole 203 of the chassis 3 103, and a weight-reducing groove 3 503 is further provided on the lower surface of the chassis 3 103. In addition, at least two weight-reducing holes 303 are evenly opened in the circumferential direction on the chassis 3 103 on the periphery of the central hole 3 203 .

[0048] In this embodiment, in order to facilitate the bearing spherical rolling body to be easily placed in the central ...

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Abstract

The invention relates to the field of bearing inner and outer ring and rolling body roundness detection, in particular to a bearing inner and outer ring and rolling body roundness detection tool, which comprises a base plate, a center hole arranged in the middle of the base plate from top to bottom, and an outer stepped shaft. The upper part of the outer stepped shaft is coaxially connected with at least three stages of upper stepped shaft parts from top to bottom, the diameters of the upper stepped shaft parts are from small to large, different upper stepped shaft parts are in clearance fit with inner circles of bearing inner rings with different diameters, and the lower part of the outer stepped shaft is coaxially connected with two stages of lower stepped shaft parts from top to bottom, and the diameters of the two stages of lower stepped shaft parts are from large to small. The lower stepped shaft part located below is in clearance fit with a center hole in the middle of the base plate, and the lower stepped shaft part located above is in tolerance fit with the upper surface of the base plate. According to the bearing inner and outer ring and rolling body roundness detection tool, the coaxiality requirement of the inner ring, the outer ring and the rolling body of the bearing and the turntable is ensured, and the adjustment operation time is shortened; the clamping times of the inner ring, the outer ring and the rolling body of the bearing are effectively reduced, and the measurement precision is improved.

Description

technical field [0001] The invention relates to the field of roundness detection of bearing inner and outer rings and rolling bodies, in particular to a roundness detection tool for bearing inner and outer rings and rolling bodies. Background technique [0002] At present, the bearing roundness tester includes a turntable, a three-jaw chuck, a probe, a lifting device, and a display screen. The bearing roundness tester is used to test the bearing roundness. By adjusting the coaxiality of the inner or outer ring of the bearing and the turntable To make it meet the error requirements, fix the inner ring or outer ring of the bearing with a three-jaw chuck, contact the probe of the roundness detector with the raceway surface of the inner ring or outer ring of the bearing, and turn the turntable to drive the three-jaw chuck The disc rotates with the inner or outer ring of the bearing, and the roundness signal of the inner and outer rings detected by the probe is transmitted to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/20
CPCG01B21/20
Inventor 贺田龙杨卫东惠新伟王永强李少伦
Owner CRRC YONGJI ELECTRIC CO LTD
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