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Measuring device for inner-rim large-flange spherical radius of taper roll bearing and measuring method

A technology of tapered roller bearings and spherical radius, applied in the field of measurement, to achieve the effects of guaranteed measurement accuracy, high calculation accuracy, and guaranteed dimensional accuracy

Inactive Publication Date: 2008-01-30
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to propose an indirect measurement method capable of solving the problem of precise measurement of the radius of the spherical surface of the large rib of the inner ring of the tapered roller bearing

Method used

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  • Measuring device for inner-rim large-flange spherical radius of taper roll bearing and measuring method
  • Measuring device for inner-rim large-flange spherical radius of taper roll bearing and measuring method
  • Measuring device for inner-rim large-flange spherical radius of taper roll bearing and measuring method

Examples

Experimental program
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Effect test

Embodiment

[0042] Taking the tapered roller bearing inner ring 7909 / 02 produced by a bearing factory as an example, it is known from the design drawings that the design value of the spherical radius R of the large rib is 225.941 +1 mm, after preliminary inspection with the standard roller coloring method, the result is that the spherical radius of the large rib basically meets the design requirements. Now use this device to measure, the value of H is 69.5mm, after checking A 1 AAA 2 and B 1 BB 2 After measuring the contours of the contours respectively, the arc radii of the fitted sections are r 1 =292.948mm, r 2 =293.101mm, the spherical radius of the large rib is finally obtained as R=295.078mm.

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Abstract

The present invention relates to improvement of taper roller bearing inside track large capped edge sphere radius metering equipment and measuring method, belonging to measuring technology. It consists of base, x-double coordinates precision workbench, inner bore clamp, outline measurement used contacting type displacement sensor, dovetail groove guideway pair, end cover board, lifting / lowering hand wheel and computer control system. Said invention increases large capped edge sphere arc measurement length to ensure survey accuracy.

Description

technical field [0001] The invention belongs to the measurement technology and relates to the improvement of a measuring device and a measuring method for the spherical radius of the large rib of the inner ring of a tapered roller bearing. Background technique [0002] The large rib of the inner ring of the tapered roller bearing is used as the auxiliary base surface when the bearing works, and is the axial base surface of the tapered roller. When the bearing is subjected to an axial load, the large end face of the tapered roller presses against the large rib of the inner ring, generating sliding friction and sharing part of the axial load when the bearing is running. The shape of the base surface of the large rib generally has three types: plane, conical and spherical. The spherical surface has a larger contact area than the flat and conical surfaces, which not only reduces the pressure per unit area, increases the contact rigidity, but also reduces the wear on the surface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/10
Inventor 王中宇
Owner BEIHANG UNIV
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