CN102636095A - Measurement method for radial clearance of large bearing - Google Patents
Measurement method for radial clearance of large bearing Download PDFInfo
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- CN102636095A CN102636095A CN2012101387652A CN201210138765A CN102636095A CN 102636095 A CN102636095 A CN 102636095A CN 2012101387652 A CN2012101387652 A CN 2012101387652A CN 201210138765 A CN201210138765 A CN 201210138765A CN 102636095 A CN102636095 A CN 102636095A
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Abstract
The invention belongs to the technical field of bearings, and mainly relates to a measurement method for a radial clearance of a large bearing. The measurement method comprises the following steps: putting an outer ring of a bearing to be measured on a V-shaped locating block (3), fixing a fixed block (2) with an inner ring of the bearing, and putting a gauss meter frame (1) on the fixed block (2); putting a balance weight block (4) in an axial middle position on an outer radial surface of the outer ring of the bearing, and putting a dial plate of the gauss meter frame on the balance weight block (4) and at the axial middle position of the bearing; respectively reading the limit measurement values U1 and U2 of the dial plate when the bearing is freely positioned, and the bottom of the outer ring of the bearing is separated from the locating block; determining the measurement load W according to the guiding manner of a bearing holding frame; and calculating the radial clearance |U1-U2| of the bearing. According to the invention, the measurement is performed by full use of the existing conditions based on the radial clearance measurement principle. The measurement method for the radial clearance of the large bearing has the advantages of simple structure, convenience for use, and relatively high test efficiency. Not only the measurement is accurate, but also the cost is very low.
Description
Technical field
The invention belongs to technical field of bearings, relate generally to a kind of measuring method of large size bearing end-play.
Background technology
The end-play of bearing is that a lasso is fixed, and another lasso is the amount of movement from an extreme position to another extreme position radially.The end-play of bearing is an important technology index of bearing, and the size of end-play directly influences the serviceable life of bearing.Therefore the accurate measurement of bearing end-play just seems particularly important.
For ball bearing, when measuring its end-play, steel ball must be in the bottom of trench position of bearing ring.The method of measuring bearing end-play at present has: apparatus measures and hand push are measured.Apparatus measures is applicable to the measurement of the end-play of measuring burden requirement, can accurately apply and measure load as requested.Bearing is generally the horizontal axis installation during measurement, and imposed load carries out the play measurement on request, and the repeatable accuracy of measured value is high, and it is little influenced by artificial subjectivity.And the hand push mensuration is a kind of method of traditional ordinary surveying bearing end-play, adopts hand push to load, and institute adds load and rule of thumb held by the gauger.The hand push mensuration is to carry out under the bearing flat condition (being that vertical shaft is measured), and the size and the measured value accuracy of measuring load receive operator's influence big.
For large-scale ball bearing, receive the bearing size influence of specification at present, no special measurement instrument.Particularly for large-scale ball bearing, because steel ball is heavier, when hand push was measured bearing end-play, steel ball can't accurately measure the end-play of bearing not in the bottom of trench position.Particularly can't accurately apply on request and measure load.Also do not have a kind of quantitative loading accurately to measure the method for large size bearing end-play up to now.
Summary of the invention
The purpose of type of the present invention promptly is the measuring method that proposes a kind of large size bearing end-play, to solve the blank that this type of bearing end-play is accurately measured.
The present invention accomplishes the technical scheme that its invention task proposed: a kind of measuring method of large size bearing end-play, the measurement mechanism that said measuring method relates to include fixed block, locating piece, magnetic force dial framework and balancing weight; Described locating piece is positioned at the bottom of measurement mechanism, and the upper surface of locating piece is a V-arrangement, in order to the placement measured bearing, and can prevent that bearing from rotating on circumferential direction; Described fixed block has the deep-slotted chip breaker of joining with the aperture surface kiss of bearing inner race, and said fixed block has the internal face of deep-slotted chip breaker and the outer face kiss of bearing inner race is joined, in order to when measuring, fixed block and bearing inner race are fixed together; Described balancing weight is placed on the axial centre position of the outer diametric plane of bearing outer ring, and the bottom surface of said balancing weight is for kissing the arcwall face of joining with the outer diametric plane of bearing outer ring; The step of said measuring method is: the outer ring of measured bearing is placed on the locating piece of V-arrangement, fixed block and bearing inner race are fixed together, described magnetic force dial framework is placed on the fixed block; Described balancing weight is placed on the axial centre position of the outer diametric plane of bearing outer ring, the dial plate of magnetic force dial framework is placed on the balancing weight, and is positioned at bearing shaft to the centre position;
1) under the free laying state of bearing, read a limit measured value U1 of dial plate this moment:
When outside the retainer guidance mode is, guiding, measurement this moment load W is: inner ring weight, magnetic force dial framework weight and fixed block weight sum;
When the retainer guidance mode was interior guiding, measurement this moment load W was: inner ring weight, magnetic force dial framework weight, fixed block weight and retainer weight sum;
2) steadily, slowly promote fixed block, when locating piece is left in the bearing outer ring bottom, read another limit measured value U2 of dial plate this moment:
When outside the retainer guidance mode is, guiding, measurement this moment load W is: outer ring weight, retainer weight and balancing weight weight sum;
When the retainer guidance mode was interior guiding, measurement this moment load W was: outer ring weight and balancing weight weight sum;
3) end-play that calculates bearing does | U1-U2|;
In the above-mentioned measuring process, for same set of bearing, the guidance mode of bearing can only be for a kind of: guiding or interior guiding outward; Measuring load W is the desired measurement load value of bearing (when measuring bearing clearance), according to the size of this value, adjusts the weight of fixed block and balancing weight respectively.
The weight of fixed block, balancing weight is confirmed according to desired measurement load W:
When the retainer guidance mode was outer the guiding, fixed block weight=bearing was measured load W-inner ring weight-magnetic force dial framework weight at free laying state; Measurement load W-outer ring weight-retainer weight when leaving locating piece bottom balancing weight weight=bearing outer ring.
When the retainer guidance mode was interior guiding, fixed block weight=bearing was measured load W-inner ring weight-magnetic force dial framework weight-retainer weight at free laying state; Measurement load W-outer ring weight when leaving locating piece bottom balancing weight weight=bearing outer ring.
The principle that the present invention measures according to end-play, making full use of has ready conditions measures.Simple in structure, easy to use, testing efficiency is higher.Not only measure accurately, and cost is extremely low.
Description of drawings
Fig. 1 is a measurement view of the present invention.
Fig. 2 is the counterweight block structure synoptic diagram.
Fig. 3 is the locating piece structural representation.
Fig. 4 is the synoptic diagram of the outer guidance mode of retainer.(retainer all is pressed on the outer ring under action of gravity)
Fig. 5 is the synoptic diagram of guidance mode in the retainer, and (retainer all is pressed on the inner ring under action of gravity.
Among the figure, 1, the magnetic force dial framework, 2, fixed block, 3, locating piece, 4, balancing weight,
5, bearing outer ring, 6, retainer, 7, bearing inner race.
Embodiment
In conjunction with accompanying drawing and embodiment, the present invention is explained:
As shown in Figure 1, the related measurement mechanism of measuring method of the present invention includes fixed block 2, locating piece 3, magnetic force dial framework 1 and balancing weight 4; Described locating piece 3 is positioned at the bottom of measurement mechanism, and with reference to Fig. 3, the upper surface of locating piece 3 is a V-arrangement, and the outer ring of measured bearing is placed on the V-arrangement locating piece 3 during measurement; Described fixed block 2 has the deep-slotted chip breaker of joining with the aperture surface kiss of bearing inner race, and the internal face of said deep-slotted chip breaker and the outer face of bearing inner race kiss are joined, and when measuring, fixed block 2 and bearing inner race are fixed together; Described magnetic force dial framework 1 is placed on the fixed block 2; Described balancing weight 4 is placed on the external diameter over glaze of bearing outer ring on the centre position; With reference to Fig. 2, the bottom surface of balancing weight 4 is for kissing the arcwall face of joining with the outer diametric plane of bearing outer ring; The indicator of magnetic force dial framework 1 is placed on the balancing weight 4, and is in the axial centre position of bearing; The step of said measuring method is:
When 1) the retainer guidance mode is outer the guiding:
(1), accomplishing each Unit Installation according to above-mentioned requirements cooperates;
(2), bearing is at free laying state:
At this moment, the outer ring is placed on the V-type locating piece, and it is fixed to be equivalent to bearing outer ring, and inner ring and fixing together parts thereof are under action of gravity, and making has in the radial direction an extreme position between bearing inner race and outer ring; A ultimate value U1 who promptly reads through dial plate;
Retainer is under action of gravity, and weight all acts on the outer ring; This moment, the measurement load of bearing then was: the weight of the assembly that is fixed together with inner ring, that is: inner ring weight, fixed block weight and magnetic force dial framework weight sum;
(3), slowly, steadily promote, when making bearing outer ring leave locating piece, read another ultimate value U2 of dial plate this moment with bearing inner race;
At this moment, be equivalent to bearing inner race and assembly is fixed, bearing outer ring and the assembly that is fixed together with the outer ring are under action of gravity, and making has in the radial direction another extreme position between bearing inner race and outer ring; A ultimate value U2 who promptly reads through dial plate;
The measurement load of this moment is: the weight of the assembly that is fixed together with the outer ring, that is: outer ring weight, balancing weight weight and retainer weight sum;
(4), the end-play that calculates bearing does
|U1-U2
|.
Annotate: the size of fixed block, balancing weight and weight are definite according to desired measurement load W, i.e. fixed block weight=W-inner ring weight-magnetic force dial framework weight;
Balancing weight weight=W-outer ring weight-retainer weight.
When 2) the retainer guidance mode is interior guiding:
(1), accomplishing each Unit Installation according to above-mentioned requirements cooperates;
(2), bearing is at free laying state:
At this moment, the outer ring is placed on the V-type locating piece, and it is fixed to be equivalent to bearing outer ring, and inner ring and fixing together parts thereof are under action of gravity, and making has in the radial direction an extreme position between bearing inner race and outer ring; A ultimate value U1 who promptly reads through dial plate;
Retainer is under action of gravity, and weight all acts on the inner ring; This moment, the measurement load of bearing then was: the weight of the assembly that is fixed together with inner ring, that is: inner ring weight, fixed block weight, retainer weight and magnetic force dial framework weight sum;
(3), slowly, steadily promote, when making bearing outer ring leave the V-type locating piece, read another ultimate value U2 of dial plate this moment with bearing inner race;
At this moment, be equivalent to bearing inner race and assembly is fixed, bearing outer ring and the assembly that is fixed together with the outer ring are under action of gravity, and making has in the radial direction another extreme position between bearing inner race and outer ring; A ultimate value U2 who promptly reads through dial plate;
The measurement load of this moment is: the weight of the assembly that is fixed together with the outer ring, that is: outer ring weight and balancing weight weight sum;
(4), the end-play that calculates bearing does
|U1-U2
|.
Annotate: the weight of fixed block, balancing weight is definite according to desired measurement load W, i.e. fixed block weight=W-inner ring weight-magnetic force dial framework weight-retainer weight;
Balancing weight weight=W-outer ring weight.
Relevant explanation:
The effect that act as isolation and guiding rolling body of retainer.
The retainer guidance mode generally has outer guiding and interior guiding (like Fig. 4, shown in Figure 5).
Generally speaking, for the solid cage bearing, if during the external diameter of the internal diameter-bearing inner race of the external diameter＞retainer of the internal diameter-retainer of bearing outer ring, the retainer guidance mode is interior guiding, otherwise be to guide outward.
Claims (2)
1. the measuring method of a large size bearing end-play, it is characterized in that: the measurement mechanism that said measuring method relates to includes fixed block (2), locating piece (3), magnetic force dial framework (1) and balancing weight (4); Described locating piece (3) is positioned at the bottom of measurement mechanism, and the upper surface of locating piece (3) is a V-arrangement, in order to the placement measured bearing, and can prevent that bearing from rotating on circumferential direction; Described fixed block (2) has the deep-slotted chip breaker of joining with the aperture surface kiss of bearing inner race, in order to when measuring, fixed block and bearing inner race are fixed together; Described balancing weight (4) is placed on the axial centre position of the outer diametric plane of bearing outer ring, and the bottom surface of said balancing weight (4) is for kissing the arcwall face of joining with the outer diametric plane of bearing outer ring; The step of said measuring method is: the outer ring of measured bearing is placed on the locating piece (3) of V-arrangement, fixed block (2) and bearing inner race are fixed together, described magnetic force dial framework (1) is placed on the fixed block (2); Described balancing weight (4) is placed on the axial centre position of the outer diametric plane of bearing outer ring, the dial plate of magnetic force dial framework is placed on the balancing weight (4), and is positioned at bearing shaft to the centre position;
1) under the free laying state of bearing, read a limit measured value U1 of dial plate this moment:
When outside the retainer guidance mode is, guiding, measurement this moment load W is: inner ring weight, magnetic force dial framework weight and fixed block weight sum;
When the retainer guidance mode was interior guiding, measurement this moment load W was: inner ring weight, magnetic force dial framework weight, fixed block weight and retainer weight sum;
2) steadily, slowly promote fixed block, when locating piece is left in the bearing outer ring bottom, read another limit measured value U2 of dial plate this moment:
When outside the retainer guidance mode is, guiding, measurement this moment load W is: outer ring weight, retainer weight and balancing weight weight sum;
When the retainer guidance mode was interior guiding, measurement this moment load W was: outer ring weight and balancing weight weight sum;
3) end-play that calculates bearing does | U1-U2|;
In the above-mentioned measuring process, for same set of bearing, the guidance mode of bearing can only be for a kind of: guiding or interior guiding outward; Measure load for the desired measurement load value of bearing,, adjust the weight of fixed block and balancing weight respectively according to the size of this value.
2. the measuring method of a kind of large size bearing end-play according to claim 1 is characterized in that: the weight of said fixed block (2), balancing weight (4) is confirmed according to desired measurement load W:
When the retainer guidance mode was outer the guiding, fixed block weight=bearing was measured load W-inner ring weight-magnetic force dial framework weight at free laying state; Measurement load W-outer ring weight-retainer weight when leaving locating piece bottom balancing weight weight=bearing outer ring;
When the retainer guidance mode was interior guiding, fixed block weight=bearing was measured load W-inner ring weight-magnetic force dial framework weight-retainer weight at free laying state; Measurement load W-outer ring weight when leaving locating piece bottom balancing weight weight=bearing outer ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101387652A CN102636095A (en) | 2012-05-08 | 2012-05-08 | Measurement method for radial clearance of large bearing |
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|---|---|---|---|
| CN2012101387652A CN102636095A (en) | 2012-05-08 | 2012-05-08 | Measurement method for radial clearance of large bearing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390563B (en) * | 2014-12-17 | 2017-05-24 | 江苏希西维轴承有限公司 | Device for detecting radial internal clearance of radial spherical pain bearing |
| CN107101560A (en) * | 2017-07-06 | 2017-08-29 | 国电联合动力技术有限公司 | A kind of bearing end-play measurement assembly and the method for measuring bearing clearance |
| CN107560528A (en) * | 2017-08-16 | 2018-01-09 | 江苏兴达钢帘线股份有限公司 | A kind of detection means and method for measuring bearing radial gap |
| CN110160454A (en) * | 2019-05-14 | 2019-08-23 | 杭州电子科技大学 | A kind of bearing assembly clearance on-line measurement machine and its clearance measurement method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3623976A1 (en) * | 1986-07-16 | 1988-01-21 | Skf Gmbh | Device for measuring the radial play of antifriction (rolling) bearings |
| CN2470784Y (en) * | 2001-01-11 | 2002-01-09 | 万向钱潮股份有限公司 | Bearing axial play measuring instrument |
| CN102230777A (en) * | 2011-04-07 | 2011-11-02 | 洛阳Lyc轴承有限公司 | Method for precisely measuring radial internal clearance of large-size bearing |
| CN202166391U (en) * | 2011-06-30 | 2012-03-14 | 浙江工业职业技术学院 | Balance weight regulatable rolling bearing clearance detector |
-
2012
- 2012-05-08 CN CN2012101387652A patent/CN102636095A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3623976A1 (en) * | 1986-07-16 | 1988-01-21 | Skf Gmbh | Device for measuring the radial play of antifriction (rolling) bearings |
| CN2470784Y (en) * | 2001-01-11 | 2002-01-09 | 万向钱潮股份有限公司 | Bearing axial play measuring instrument |
| CN102230777A (en) * | 2011-04-07 | 2011-11-02 | 洛阳Lyc轴承有限公司 | Method for precisely measuring radial internal clearance of large-size bearing |
| CN202166391U (en) * | 2011-06-30 | 2012-03-14 | 浙江工业职业技术学院 | Balance weight regulatable rolling bearing clearance detector |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390563B (en) * | 2014-12-17 | 2017-05-24 | 江苏希西维轴承有限公司 | Device for detecting radial internal clearance of radial spherical pain bearing |
| CN107101560A (en) * | 2017-07-06 | 2017-08-29 | 国电联合动力技术有限公司 | A kind of bearing end-play measurement assembly and the method for measuring bearing clearance |
| CN107560528A (en) * | 2017-08-16 | 2018-01-09 | 江苏兴达钢帘线股份有限公司 | A kind of detection means and method for measuring bearing radial gap |
| CN110160454A (en) * | 2019-05-14 | 2019-08-23 | 杭州电子科技大学 | A kind of bearing assembly clearance on-line measurement machine and its clearance measurement method |
| CN110160454B (en) * | 2019-05-14 | 2020-09-22 | 杭州电子科技大学 | Bearing assembly clearance on-line measuring machine and clearance measuring method thereof |
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Application publication date: 20120815 |