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Device for measuring axial internal clearance of matched angular contact ball bearing

A measuring device, the technology of axial clearance, applied in the direction of mechanical clearance measurement, etc., can solve the problems of low measurement accuracy and complex structure of the measuring device, and achieve the effects of ensuring measurement accuracy, convenient operation and simple structure

Active Publication Date: 2013-02-06
WAFANGDIAN BEARING GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Assembled angular contact ball bearings used in precision machine tools have very strict requirements on axial clearance, but the existing measuring devices have complex structures and low measurement accuracy

Method used

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  • Device for measuring axial internal clearance of matched angular contact ball bearing
  • Device for measuring axial internal clearance of matched angular contact ball bearing
  • Device for measuring axial internal clearance of matched angular contact ball bearing

Examples

Experimental program
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Effect test

Embodiment

[0028] Measuring instrument 7 adopts G905 height measuring instrument. According to different pairing methods of bearings, on the G905 height measuring instrument, the bearing 6 to be tested is measured with accessories such as measuring load. In this embodiment, the process of measuring the axial clearance of bearings in the back-to-back DB assembly mode is taken as an example to illustrate as follows:

[0029] Firstly, design the special measurement load and accessories according to the specifications of the tested bearing 6, in which the outer spacer is a double-half ring type, the outer spacer is higher than the inner spacer, and its value is a=0.15~0.3mm; secondly, according to figure 2 Place the tested bearing and measuring accessories on the G905 instrument as shown, and zero the instrument; finally, remove the outer spacer 4, as shown in image 3 As shown, write down the reading of the instrument at this time, and use this reading to subtract the height difference a v...

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Abstract

The invention discloses a device for measuring the axial internal clearance of a matched angular contact ball bearing, which relates to the technical field of bearing performance detection. The device comprises a load block (1), a centering sleeve (2), an inner space ring (3), an outer space ring (4), a washer (5) and a measuring instrument (7), wherein the centering sleeve (2) is arranged on a platform of the measuring instruments (7), the washer (5) is sleeved on the centering sleeve (2), measured bearings (6) are sleeved on the centering sleeve (2), the lower surfaces of the inner rings of the measured bearing (6) are supported by the washer (5), the load block (1) is arranged on the measured bearing (6), the inner space ring (3) is connected with the inner rings of the two measured bearings (6), and the outer space ring (4) is connected with the outer rings of the two measured bearings (6). The device provided by the invention has the advantages of simple structure, low cost, and high accuracy, and is convenient in operation, therefore, the device is suitable for the bearing processing factories in various sizes.

Description

technical field [0001] The invention relates to the technical field of bearing performance detection, in particular to a device for measuring the axial clearance of assembled angular contact ball bearings. Background technique [0002] The single row angular contact ball bearing itself has axial clearance, and the axial clearance of the assembled angular contact ball bearing is even greater. Angular contact ball bearings assembled into appropriate clearances are often used on machine tool spindles to improve spindle rigidity and rotation accuracy. Therefore, the clearance of paired angular contact ball bearings needs to be strictly adjusted when they leave the factory. [0003] Assembled angular contact ball bearings have three basic matching forms: back-to-back, face-to-face, and series. figure 1 shown. [0004] Assembled angular contact ball bearings used in precision machine tools have very strict requirements on axial clearance, but the existing measuring devices have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/14
Inventor 骆桂斌李淑萍李爱君田琳许昊岩何东生崔传荣金福阳
Owner WAFANGDIAN BEARING GRP CO LTD
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