SU917030A1 - Method and device for measuring ball bearing race position - Google Patents

Description

(54) METHOD OF MEASURING THE POSITION OF THE ROLLING ROAD

BALL BEARINGS AND DEVICE RINGS

FOR ITS IMPLEMENTATION

one

 The invention relates to the bearing industry and can be advantageously used to measure the position of a raceway of ball bearing rings.

A known method for measuring the position of a raceway of a ball bearing ring, which consists in measuring the axial position of the process balls located between the cone and the raceway of the outer ring of the subject under the hips, relative to the end of this ring P1.

A device for carrying out the method is known, comprising a rotary sleeve with a conical surface, process balls and a separator, placed with contact with the outer ring of the test bearing and the conical surface of the sleeve, and indicator 1j mounted in a housing with a base end.

However, the known method and apparatus for its implementation have the disadvantage that they have low accuracy in measuring the position of the raceway of the bearing ring.

The purpose of the invention is to improve the accuracy of measuring the position of a raceway of a bearing ring.

 This goal is achieved by measuring the axial position of the technology balls located between the cone and the raceway of the outer ring of the tested bearing, relative to the end

10 of this ring. The measurement is carried out in the contact zone of the raceway with the process balls, in which the contact angle is at least zero.

In addition, the device contains mounted in the case with the base end

15 for mounting the outer ring of the test bearing a rotary sleeve with a conical surface, technological balls with a separator, placed with the possibility of contact with the outer ring of the test bearing and the conical surface of the sleeve, and an indicator. In this case, the larger base of the conical surface is located on the side of the base end of the body. On the conical surface of the sleeve there are uniformly spaced flats, the number of which is equal to the number of technological balls, and each angle between the plane of one of the bald spots and the axis of the conical surface is most equal to the sliding friction angle of technological balls with the raceway of the outer ring of the test bearing.

FIG. 1 shows a structural diagram of an apparatus for carrying out the method; in fig. 2 is a section A-A in FIG. one.

The device comprises mounted to the housing 1 with a base end 2 for mounting the outer ring 3 of the test bearing a rotary sleeve 4 with a conical surface 5, technological balls 6 and a separator 7 placed in contact with the outer ring 3 of the test bearing and the conical surface 5 of the sleeve 4, and indicator 8.

On the conical surface 5, the sleeves 4 are made evenly spaced flats 9, the number of which is equal to the number of technological balls 6, and each, the angle between the plane of one of the bald spots 9 and the axis of the conical surface 5 is, to a greater extent, equal to the angle of friction of the technological balls 6 with a raceway outer ring 3 of the test bearing.

The method is carried out as follows.

The outer ring 3 of the test bearing is mounted with the base end on the base end 2 of the housing 1. The separator 7 with technological balls 6 is introduced into the ring. The indicator tip 8 is brought to the end of the separator 7.

When turning the sleeve 4 is a radial and axial movement of the balls 6.

When the balls 6 are seized, the rotation of the sleeve 4, the radial and axial movement of the balls 6 cease, and then the axial movement of the balls 6 from the nominal position is measured. The nominal position of the balls b set using a set of plane-parallel end measures of length, entered between the balls 6 and the base end 2 of the housing 1.

The value of the actual position of the raceway (h) is defined as the algebraic sum of the size of the length of a set of plane-parallel end measures, radius

ball 6 and the indicator deviation of the indicator 8 from the nominal position. The proposed method of measuring the position of the raceway relative to the end of the radial-resistant rings of ball bearings provides, in comparison with a known method, an increase in measurement accuracy, an increase in measurement performance, a reduction in the cost of measurement, an increase in quality and a reduction in the cost price of ball bearings.

Claims (2)

1. A method for measuring the position of a raceway of a ball-bearing ring, which consists in measuring the axial position of the process balls located between the cone and the raceway of the outer ring of the test bearing, relative to the end of this ring, characterized in that t in the contact zone of the raceway with the technology balls, in which the contact angle is at least zero. 2. A device for carrying out the method according to claim 1, comprising mounted in a housing with a base end for mounting the outer ring of the tested bearing a rotary sleeve with a conical surface, technological balls with a separator placed in contact with the outer ring of the test bearing and the conical surface of the sleeve, as well as an indicator, characterized in that the larger base of the conical surface is located sides of the base end J body, while on the conical surface of the sleeve are made evenly spaced flats, the number of which is equal to the number of technological balls, and each angle between the plane of one of the bald spots and the axis of the conical surface for most On the measure, it is equal to the friction friction angle of technological balls with a rolling track on the outer ring of the test subunit. Sources of information taken into account in the examination 1. Filatov A. V. and others. Means and methods for controlling the dimensional parameters of precision ball bearings. NIInavtoprom, a series of "Podshipnikov industry, M., 1966, p. 27-28 (prototype).