CN102564381B - Method for fitting and measuring axial clearance of spacer-free four-column tapered roller bearing - Google Patents

Abstract

The invention discloses a method for fitting and measuring the axial clearance of a spacer-free four-column tapered roller bearing. The method comprises the following steps of: 1, measuring a bearing inner ring end surface C, a bearing inner ring end surface A and a bearing inner ring end surface E; 2, measuring an outer ring surface A and the bearing inner ring end surface C; and 3, measuring an outer ring surface E and the bearing inner ring end surface C. The method has the advantages that: three internal and external spacers can be removed, and bearing parts can be reduced; and the inner ring end surface is used as a reference zero position to directly measure the level difference of an outer ring end surface, so that the axial clearance is convenient to measure, can be clearly and easily fitted and is easy to calculate.

Description

The trap measuring method of the end-play of cageless four-row tapered roller bearing

Technical field

The present invention relates to a kind of trap measuring method of end-play of bearing, specifically a kind of trap measuring method of cageless four-row tapered roller bearing.

Background technology

The trap measuring method of existing four-row tapered roller bearing has the four-row tapered roller bearing of spacer ring to traditional, usual employing reconditioning internal space ring and external space ring width adjusts the end-play of bearing, tradition has the trap method parts of the four-row tapered roller bearing of spacer ring many, install complicated, measure and adopt calculating gauge block value to be benchmark, personal error is large, calculation of complex, there is no ripe measuring method for cageless four-row tapered roller bearing trap is domestic at present.

Summary of the invention

The object of this invention is to provide a kind of measuring method of cageless four-row tapered roller bearing trap, the processing for bearing assemble provides effective theoretical foundation.

The technical scheme adopted is:

The trap measuring method of the end-play of cageless four-row tapered roller bearing, comprises the steps:

First set outer ring AB and ED face size tolerance to be set to b as a, outer ring BC and DC face size tolerance, inner ring face size tolerance is set to c, and play is set to A ~ B;

The first step:

Measure C face, supporting inner ring end face A, E planar survey.(see figure 2)

With inner ring end face for benchmark zero-bit, measure cycle surface lower than inner ring end face A/2 ~ B/2, i.e.-A/2 ~-B/2.

If the value measured is greater than-A/2, when ensureing that assembling is high, grinding cycle surface C face is to-A/2 ~-B/2;

If the value measured is less than-B/2, when ensureing that assembling is high, grinding inner ring end face C face is to-A/2 ~-B/2;

Second step:

Measure A face, supporting inner ring end face C planar survey.(see figure 3)

With inner ring end face for benchmark zero-bit, measure cycle surface lower than inner ring end face A/2-a-b ~ B/2-a-b, namely-(A/2-a-b) ~-(B/2-a-b),

Because outer ring AB face size tolerance is a, outer ring BC face size tolerance is b, and after trap, play is a+b-(-(A/2-a-b) ~-(B/2-a-b))+(A/2 ~ B/2)=A ~ Bmm.

If the value measured is greater than-(A/2-a-b) grinding outer ring raceway, to-(A/2-a-b) ~-(B/2-a-b);

If the value measured is less than-AB end face B face, (B/2-a-b) grinding outer ring, now measured value is constant, but play changes (reduction).

3rd step:

Measure E face, supporting inner ring end face C planar survey.(see figure 4)

With inner ring end face for benchmark zero-bit, measure cycle surface lower than inner ring end face A/2-a-b ~ B/2-a-b, namely-(A/2-a-b) ~-(B/2-a-b);

Because outer ring ED face size tolerance is a, outer ring DC face size tolerance is b, and after trap, play is a+b-(-(A/2-a-b) ~-(B/2-a-b))+(A/2 ~ B/2)=A ~ Bmm.

If the value measured is greater than-(A/2-a-b) grinding outer ring raceway, to-(A/2-a-b) ~-(B/2-a-b);

If the value measured is less than-ED end face D face, (B/2-a-b) grinding outer ring, now measured value is constant, but play changes (reduction).

Advantage of the present invention:

This measuring method: can cancel inside and outside three spacer rings, reduces bearing parts, with inner ring end face for benchmark zero-bit, directly measures cycle surface drop, and it is convenient to measure, trap straightforward, calculates simple.

Accompanying drawing explanation

Fig. 1 is cageless four-row tapered roller bearing assembling schematic diagram.

Fig. 2 is supporting inner ring end face A face, measures C face, outer ring schematic diagram.

Fig. 3 is supporting inner ring end face E face, measures C face, outer ring schematic diagram.

Fig. 4 is supporting inner ring end face C face, measures A face, outer ring schematic diagram.

Fig. 5 is supporting inner ring end face C face, measures E face, outer ring schematic diagram.

Embodiment:

The trap measuring method of the end-play of cageless four-row tapered roller bearing, comprises the steps:

The first step: set outer ring AB and ED face size tolerance to be set to b as a, outer ring BC and DC face size tolerance, inner ring face size tolerance is set to c, and play is set to A ~ B.

Second step:

First the measurement of supporting inner ring end face C face, supporting inner ring end face A face and supporting inner ring end face E face is carried out;

With inner ring end face for benchmark zero-bit, measure cycle surface lower than inner ring end face A/2 ~ B/2, i.e.-A/2 ~-B/2.

If the value measured is greater than-A/2, when ensureing that assembling is high, grinding cycle surface C face is to-A/2 ~-B/2;

If the value measured is less than-B/2, when ensureing that assembling is high, grinding inner ring end face C face is to-A/2 ~-B/2;

3rd step:

Measure A face, outer ring, supporting inner ring end face C face:

With inner ring end face for benchmark zero-bit, measure cycle surface lower than inner ring end face A/2-a-b ~ B/2-a-b, namely-(A/2-a-b) ~-(B/2-a-b),

Because outer ring AB face size tolerance is a, outer ring BC face size tolerance is b, and after trap, play is a+b-(-(A/2-a-b) ~-(B/2-a-b))+(A/2 ~ B/2)=A ~ Bmm.

If the value measured is greater than-(A/2-a-b) grinding outer ring raceway, to-(A/2-a-b) ~-(B/2-a-b);

If the value measured is less than-AB end face B face, (B/2-a-b) grinding outer ring, now measured value is constant, but play diminishes.

4th step:

Measure E face, outer ring, supporting inner ring end face C face:

With inner ring end face for benchmark zero-bit, measure cycle surface lower than inner ring end face A/2-a-b ~ B/2-a-b, namely-(A/2-a-b) ~-(B/2-a-b), because outer ring ED face size tolerance is a, outer ring DC face size tolerance is b, and after trap, play is a+b-(-(A/2-a-b) ~-(B/2-a-b))+(A/2 ~ B/2)=A ~ Bmm.

If the value measured is greater than-(A/2-a-b) grinding outer ring raceway, to-(A/2-a-b) ~-(B/2-a-b);

If the value measured is less than-ED end face D face, (B/2-a-b) grinding outer ring, now measured value is constant, but play diminishes.

Claims (1)

1. the trap measuring method of the end-play of cageless four-row tapered roller bearing, outer ring AB and ED face size tolerance are set to a, and outer ring BC and DC face size tolerance are set to b, and inner ring face size tolerance is set to c, play is set to A ~ B, and its feature comprises the steps:

The first step: first carry out measuring the drop of inner ring end face C face to cycle surface C, support inner ring A face and E face respectively;

With inner ring end face C face for benchmark zero-bit, measure cycle surface C face lower than inner ring end face C face A/2 ~ B/2 i.e.-A/2 ~-B/2;

If measured value is greater than-A/2, when ensureing that assembling is high, grinding cycle surface C to-A/2 ~-B/2;

If measured value is less than-B/2, when ensureing that assembling is high, grinding inner ring end face C to-A/2 ~-B/2;

Second step: the drop measuring inner ring end face A face to cycle surface A face, supporting inner ring end face C planar survey, with inner ring end face A face for benchmark zero-bit, measure cycle surface A face lower than inner ring end face A face A/2-a-b ~ B/2-a-b, namely-(A/2-a-b) ~-(B/2-a-b);

Because outer ring AB face size tolerance is a, outer ring BC face size tolerance is b, and after trap, play is a+b-(-(A/2-a-b) ~-(B/2-a-b))+(A/2 ~ B/2)=A ~ Bmm;

If the value measured is greater than-(A/2-a-b) grinding outer ring AB raceway, to-(A/2-a-b) ~-(B/2-a-b);

If the value measured is less than-AB end face B face, (B/2-a-b) grinding outer ring, now measured value is constant, but play diminishes;

3rd step: the drop measuring inner ring end face E face to cycle surface E face, supporting inner ring end face C planar survey, with inner ring end face E face for benchmark zero-bit, measure cycle surface E face lower than inner ring end face E face A/2-a-b ~ B/2-a-b, namely-(A/2-a-b) ~-(B/2-a-b);

Because outer ring AB face size tolerance is a, outer ring BC face size tolerance is b, and after trap, play is a+b-(-(A/2-a-b) ~-(B/2-a-b))+(A/2 ~ B/2)=A ~ Bmm;

If the value measured is greater than-(A/2-a-b) grinding outer ring ED raceway, to-(A/2-a-b) ~-(B/2-a-b);

If the value measured is less than-ED end face D face, (B/2-a-b) grinding outer ring, now measured value is constant, but play diminishes.