Measuring structure for outer ring of double-column angular contact ball bearing
A technology of double-row angular contact and ball bearings, which is applied in the direction of measuring devices, instruments, etc., and can solve the problems of insufficient measurement accuracy of the center distance between the two grooves of the outer ring
Pending Publication Date: 2019-09-20
WUXI SHUANGYI PRECISION MACHINERY
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Problems solved by technology
[0003] In order to solve the problem of insufficient measurement accuracy of the center distance between the two grooves of the outer ring of the double row angular contact ball bearing in the prior art, the present invention provides a measurement structure for the outer ring of the double row angular contact ball bearing, which can increase the center distance between the two grooves of the outer ring Measurement accuracy, thereby reducing the reject rate of products
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[0017] Such as Figure 1~Figure 3 As shown, the measurement structure for the outer ring of the double row angular contact ball bearing of the present invention includes a measuring pen 23, an upper cage steel ball assembly 17 concentrically arranged, a lower cage steel ball assembly 16, and a cage assembly pressure plate 22, The upper positioning block 20 and the lower positioning block 21; the steel balls in the upper cage steel ball assembly 17 and the lower cage steel ball assembly 16 are respectively arranged in the upper and lower grooves of the outer ring 15 to be tested, and the upper positioning block 20 is concentrically fixed In the inner cavity of the upper cage steel ball assembly 17, the lower positioning block 21 is concentrically fixed on the bottom end surface of the lower cage steel ball assembly 16, and the cage assembly pressure plate 22 passes through the bottom of the lower cage steel ball assembly 16 concentrically from top to bottom. The inner cavity is...
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The invention provides a measuring structure for an outer ring of a double-column angular contact ball bearing. and the structure can be used to improve the measuring precision of the center distance between two channels of the outer ring and reduce the reject ratio of products. The measuring structure comprises a measuring pen and upper and lower retainer steel ball assemblies arranged concentrically, and the measuring structure is characterized by also comprising a retainer assembly pressure plate and upper and lower positioning blocks, steel balls of the upper and lower retainer steel ball assemblies are placed in upper and lower channels of the outer ring to be measured respectively, the upper positioning block is concentrically fixed in an inner cavity of the upper retainer steel ball assembly, the lower positioning block is concentrically fixed to the bottom end surface of the lower retainer steel ball assembly, the retainer assembly pressure plate concentrically downwardly penetrates the inner cavity of the lower retainer steel ball assembly and is fixed to the upper end surface of the lower positioning block, the measuring pen downwardly penetrates a measuring through hole formed in the center of the positioning block via a measurement assembly and then extends to the upper end surface of the retainer assembly pressure block, and the lower positioning block is driven by a rotation assembly to rotate.
Description
technical field [0001] The invention relates to the technical field of bearing parameter measuring devices, in particular to a measuring structure for the outer ring of a double-row angular contact ball bearing. Background technique [0002] The center distance between the two grooves of the outer ring of the double row angular contact ball bearing, that is, the vertical distance between the two grooves of the outer ring and the contact point of the steel ball, is the main technical index of the bearing. In the prior art, the measurement of the distance between the centers of the two grooves of the outer ring is mostly carried out by measuring several points in a static manner and then calculating the average value. However, the accuracy of the value of the distance between the centers of the two grooves of the outer ring of the double row angular contact ball bearing obtained by this method is not accurate enough, resulting in a high scrap rate in product production. Cont...
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IPC IPC(8): G01B21/16
CPCG01B21/16
Inventor 黄丽萍叶林赵飞
Owner WUXI SHUANGYI PRECISION MACHINERY