CN108627073A - A kind of detection of YRT turntables bearing axial play and matching method - Google Patents

A kind of detection of YRT turntables bearing axial play and matching method Download PDF

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Publication number
CN108627073A
CN108627073A CN201810136716.2A CN201810136716A CN108627073A CN 108627073 A CN108627073 A CN 108627073A CN 201810136716 A CN201810136716 A CN 201810136716A CN 108627073 A CN108627073 A CN 108627073A
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CN
China
Prior art keywords
inner ring
axial direction
yrt
peak
bearing
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810136716.2A
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Chinese (zh)
Inventor
马莹
范雨晴
宁晋
胡敬原
赵洋
李江斌
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Luoyang Bearing Research Institute Co Ltd
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Luoyang Bearing Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Luoyang Bearing Research Institute Co Ltd filed Critical Luoyang Bearing Research Institute Co Ltd
Priority to CN201810136716.2A priority Critical patent/CN108627073A/en
Publication of CN108627073A publication Critical patent/CN108627073A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/14Measuring arrangements characterised by the use of mechanical means for measuring distance or clearance between spaced objects or spaced apertures
    • G01B5/146Measuring arrangements characterised by the use of mechanical means for measuring distance or clearance between spaced objects or spaced apertures measuring play on bearings

Abstract

The present invention relates to a kind of detection of YRT turntables bearing axial play and matching methods, measure the inner ring height of bearing and the peak of upper row's axial direction roller first away from the distance of inner ring reference plane;Then inner ring height and the peak of upper row's axial direction roller is poor away from making at a distance from inner ring reference plane, obtained difference is made comparisons with the clearance value of setting:If difference is more than the clearance value of setting, judge that the negative clearance amount of the YRT turntable bearings is too small;If difference is less than the clearance value of setting, judge that the negative clearance amount of the YRT turntable bearings is excessive.The present invention need to only measure two data of distance of the peak of inner ring height and upper row's axial direction roller away from inner ring reference plane, shorten the dimension chain that common clearance calculates;Moreover, this method again it can be considered that when bearing assembles the influence of most terminal size factor improve grinding efficiency to greatly improve apolegamy precision, and then prevent turntable bearing from occurring pre-tightening not enough or the excessive situation of moment of friction.

Description

A kind of detection of YRT turntables bearing axial play and matching method
Technical field
The invention belongs to bearing mounting technology fields, and in particular to a kind of detection and choosing of YRT turntables bearing axial play Method of completing the square.
Background technology
Since 21st century, opened especially with country's " high-grade, digitally controlled machine tools and basic manufacturing equipment " is special It is dynamic, greatly pushed mechanized equipment industrial expansion, high speed, accurate, compound, intelligentized Machine Tool Development process obtained into One step accelerates.Wherein, YRT turntables bearing is carried because it can bear the synthesis such as axial load, radial load and tilting moment simultaneously The ability of lotus, is used widely.
YRT turntable bearings include the inner ring being used to support, blowout patche and the outer ring for rotation, are collection supports, rotation, pass The special construction of functions such as dynamic, fixed.YRT turntable bearings include three row rollers, and the axial roller of two row is to ensure to stablize Axial carrying capacity, a row radial roller acts on ensureing that bearing can bear radial load and tilting moment.
Currently, YRT turntable bearings be widely used in high-precision numerical control rotating platform, dividing head, military project radar and measurement and Experiment etc. has the field that degree of precision requires.To ensure that the higher rigidity of bearing and running accuracy, turntable bearing substantially use The design method that negative clearance band pre-tightens, so that bearing and load carry out cooperating.
But in Practical Project, often there are various problems, such as:Rotation is difficult, generates heat, or even abrasion, stuck etc. Phenomenon occurs, and is also possible to that bearing internal external circle can be caused to crack when serious;Also or, inner ring is made to turn together with outer ring sometimes It is dynamic, cause bearing to be seriously worn.
Invention content
The purpose of the present invention is to provide a kind of detection of YRT turntables bearing axial play and matching methods, to solve The problem of YRT turntable bearings easy failure.
In order to solve the above technical problems, the technical scheme is that:
The present invention provides a kind of detection methods of YRT turntables bearing axial play, include the following steps:
The inner ring height of bearing and the peak of upper row's axial direction roller are measured away from the distance of inner ring reference plane;
The peak of inner ring height and upper row's axial direction roller is poor away from making at a distance from inner ring reference plane, obtained difference with set Fixed clearance value is made comparisons:
If difference is more than the clearance value of setting, it is too small to judge that the axial direction of the YRT turntable bearings bears clearance amount;
If difference is less than the clearance value of setting, it is excessive to judge that the axial direction of the YRT turntable bearings bears clearance amount.
The present invention also provides a kind of matching methods of YRT turntables bearing axial play, including following matching method scheme:
Matching method scheme one, includes the following steps:
The inner ring height of bearing and the peak of upper row's axial direction roller are measured away from the distance of inner ring reference plane;
The peak of inner ring height and upper row's axial direction roller is poor away from making at a distance from inner ring reference plane, obtained difference with set Fixed clearance value is made comparisons:
If difference is more than the clearance value of setting, judge that the negative clearance amount of the axial direction of the YRT turntable bearings is too small, reconditioning inner ring Flange upper surface (end faces A);
If difference is less than the clearance value of setting, judge that the negative clearance amount of the axial direction of the YRT turntable bearings is excessive, reconditioning inner ring Flange lower face or cycle surface.
Matching method scheme two, on the basis of matching method scheme one, the flange upper surface (end faces A) of reconditioning inner ring Reconditioning quality is:
S=H-HW-Ga
Wherein, s is reconditioning quality, and H is inner ring height, HWFor upper row's axial direction roller peak away from inner ring reference plane away from From Ga is the clearance value of setting.
Matching method scheme three, on the basis of matching method scheme one, the flange lower face or outer ring end of reconditioning inner ring The reconditioning quality in face is:
S=HW+Ga-H
Wherein, s is reconditioning quality, and H is inner ring height, HWFor upper row's axial direction roller peak away from inner ring reference plane away from From Ga is the clearance value of setting.
Matching method scheme four measures circle on inner ring flange upper surface (end faces A) on the basis of matching method scheme one The height and averaged of at least three positions Zhou Junbu, using the average value as the inner ring height.
Matching method scheme five arranges circumference uniform distribution on axial roller on the basis of matching method scheme one, in measurement The peak of upper row's axial direction roller of at least three positions away from the distance of inner ring reference plane and seeks minimum value, is made with the minimum value For upper row's axial direction roller peak away from the distance of inner ring reference plane.
Beneficial effects of the present invention:
It in the actual course of work of turntable bearing, is found by test of many times, end-play is to influence YRT turntable precision A key factor.End-play is too small, and bearing is made to bear larger extruding, is rotated so as to cause bearing difficult;Axial play Gap is excessive, and inside and outside circle may be caused to rotate together, phenomena such as abrasion, vibration occur;And then turntable bearing is caused various ask occur Topic.It is found by further analysis, the apolegamy mode based on plain bearing, according to mindset, YRT turntable bearing clearances Previous apolegamy is consistent with the apolegamy mode of plain bearing, i.e.,:The calculation formula of end-play is:Ga=(H-H1)-outer ring is high Spend -2 × DW.Wherein, H is inner ring height, H1For the end faces inner ring B away from inner ring reference plane apart from inner ring reference plane, DWIt is straight for roller Diameter.Specific visible Fig. 1 is to understand these values.But end-play, the formula need to measure multiple data in order to obtain It is calculated, includes the height dimension (H of roller diameter, outer ring height dimension, inner ring flange1), etc..It is each in these data The measurement of data will produce measurement error, and the accumulation of measurement error will finally cause calculated clearance value to be assembled with bearing Practical clearance value after generates larger discrepancy, so that it is small often to feed back bearing pre-tightened when bearing uses at user, just Phenomena such as degree is not enough or moment of friction is excessive.
The present invention is made that improvement, only need to measure the peak of inner ring height and upper row's axial direction roller away from inner ring reference plane Two data of distance are evaded the measurement of outer ring height, roller diameter, inner ring flange height three data of size, contracting The dimension chain that short clearance calculates, but this method again it can be considered that when bearing assembles most terminal size factor influence, to Apolegamy precision is greatly improved, grinding efficiency is improved, and then prevents turntable bearing from various failures occur, prevent from pre-tightening not enough or is rubbed The excessive situation of torque occurs.
Description of the drawings
Fig. 1 is the sectional view of YRT turntable bearings.
Specific implementation mode
To keep the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, to the present invention It is described in further detail.
In order to realize the detection and apolegamy of the YRT turntable bearing axial plays to the present invention, YRT is turned with the following method Platform bearing is detected and does respective handling.
First, YRT turntables are assembled, schematic diagram is as shown in Figure 1.
1, roller is sorted.Axial roller is divided into several groups with the requirement of length and diameter grouping difference as defined in drawing, is remembered Record the actual diameter dimensional discrepancy of every group of roller.
2, so that row's axial direction roller is used the roller of same packet size deviation, so that lower row's axial direction roller is used same The roller of one packet size deviation.If choosing the axial roller dry granular of a packet size deviation, (quantity meets wanting for product drawing Ask), and be fitted into retainer 3, as lower row's axial direction roller 42;If in addition, choosing the axial roller dry granular of a packet size deviation (quantity also complies with the requirement of product drawing), and be fitted into retainer 3, as upper row's axial direction roller 41.Upper row's axial direction roller Diameter dimension choose as far as possible diameter dimension deviation be intermediate packet size roller.
3, outer ring 1, inner ring 2, upper row's axial direction roller 41, lower row's axial direction roller 42 and retainer 3 are formed as shown in Figure 1 Component.
Then, after assembling, work can be measured and do respective handling.
1, inner ring height and averaged are measured in multiple positions of bearing inner race, as inner ring height H.In order to enable Measurement result is more accurate, can measure several groups of data more.
2, the peak of axial roller is arranged on multiple positions measure away from the distance of inner ring reference plane, and seeks this multiple value In peak distance H away from inner ring reference plane of the minimum value as upper row's axial direction rollerW.Likewise, can also measure several groups more Data, to find minimum value.
3, by the peak of inner ring height H and upper row's axial direction roller away from inner ring low side distance HWMake it is poor, and with setting Clearance value Ga makes comparisons:
If H-HW> Ga then illustrate that the negative clearance amount of the YRT turntable bearings is too small namely clearance value is excessive;At this point, can repair The flange upper surface (being plane of reference A in Fig. 1) for grinding inner ring 2, so that H reduces, so that H-HWValue can reduce, and then make Obtaining the clearance value of YRT turntable bearings can reduce, and can finally be approximately equal to the clearance value Ga of setting.Specifically, reconditioning quality Can be:
S=H-HW-Ga
Wherein, s is reconditioning quality, and H is inner ring height, HWFor upper row's axial direction roller peak away from inner ring reference plane away from From Ga is the clearance value of setting.
If H-HW< Ga then illustrate that the negative clearance amount of the YRT turntable bearings is excessive namely clearance value is too small;At this point, can repair Flange lower face (being " ear " plane of reference B in Fig. 1) or the cycle surface for grinding inner ring, so that HWReduce, so that H-HWValue It can increase, so that the clearance value of YRT turntable bearings can increase, and can finally be approximately equal to the clearance value of setting Ga.Specifically, reconditioning quality can be:
S=HW+Ga-H
Wherein, s is reconditioning quality, and H is inner ring height, HWFor upper row's axial direction roller peak away from inner ring reference plane away from From Ga is the clearance value of setting.
Wherein, the design end-play value selected according to working condition requirement when the clearance value Ga set is design bearing.
Reconditioning is carried out to bearing according to the method described above, you can ensure the apolegamy of bearing axial play to the greatest extent close to axis Design end-play value is held, prevents the situation that YRT turntable bearing pre-tighteneds are inadequate or moment of friction is excessive from occurring.
In addition to YRT turntable bearings, this method be equally applicable to multirow bearing or combination bearing end-play detection and Corresponding processing work.Present invention only provides a kind of resolving ideas and reference methods, are read in those skilled in the art After the above, a variety of modifications and substitutions of the present invention all will be apparent.

Claims (6)

1. a kind of detection method of YRT turntables bearing axial play, which is characterized in that include the following steps:
The inner ring height of bearing and the peak of upper row's axial direction roller are measured away from the distance of inner ring reference plane;
, obtained difference and setting poor away from making at a distance from inner ring reference plane by inner ring height and the peak of upper row's axial direction roller Clearance value is made comparisons:
If difference is more than the clearance value of setting, it is too small to judge that the axial direction of the YRT turntable bearings bears clearance amount;
If difference is less than the clearance value of setting, it is excessive to judge that the axial direction of the YRT turntable bearings bears clearance amount.
2. a kind of matching method of YRT turntables bearing axial play, which is characterized in that include the following steps:
The inner ring height of bearing and the peak of upper row's axial direction roller are measured away from the distance of inner ring reference plane;
, obtained difference and setting poor away from making at a distance from inner ring reference plane by inner ring height and the peak of upper row's axial direction roller Clearance value is made comparisons:
If difference is more than the clearance value of setting, judge that the negative clearance amount of the axial direction of the YRT turntable bearings is too small, the flange of reconditioning inner ring Upper surface (end faces A);
If difference is less than the clearance value of setting, judge that the negative clearance amount of the axial direction of the YRT turntable bearings is excessive, the flange of reconditioning inner ring Lower face or cycle surface.
3. the matching method of YRT turntables bearing axial play according to claim 2, which is characterized in that reconditioning inner ring The reconditioning quality of flange upper surface (end faces A) is:
S=H-HW-Ga
Wherein, s is reconditioning quality, and H is inner ring height, HWFor upper row's axial direction roller peak away from the distance of inner ring reference plane, Ga is The clearance value of setting.
4. the matching method of YRT turntables bearing axial play according to claim 2, which is characterized in that reconditioning inner ring The reconditioning quality of flange lower face or cycle surface is:
S=HW+Ga-H
Wherein, s is reconditioning quality, and H is inner ring height, HWFor upper row's axial direction roller peak away from the distance of inner ring reference plane, Ga is The clearance value of setting.
5. the matching method of YRT turntables bearing axial play according to claim 2, which is characterized in that it is convex to measure inner ring The height and averaged of at least three position of circumference uniform distribution on edge upper surface (end faces A), using the average value as described interior Circle height.
6. the matching method of YRT turntables bearing axial play according to claim 2, which is characterized in that arrange axis in measurement The peak of upper row's axial direction roller of at least three positions of circumference uniform distribution away from the distance of inner ring reference plane and is sought on roller Minimum value, the peak using the minimum value as upper row's axial direction roller is away from the distance of inner ring reference plane.
CN201810136716.2A 2018-02-09 2018-02-09 A kind of detection of YRT turntables bearing axial play and matching method Pending CN108627073A (en)

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Application Number Priority Date Filing Date Title
CN201810136716.2A CN108627073A (en) 2018-02-09 2018-02-09 A kind of detection of YRT turntables bearing axial play and matching method

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Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102022965A (en) * 2010-10-23 2011-04-20 瓦房店轴承集团有限责任公司 Device for measuring axial internal clearance of matched angular contact ball bearing
CN102435120A (en) * 2011-09-14 2012-05-02 瓦房店工业冶金轴承制造有限公司 Outward double-row tapered roller bearing inner race measurement method
CN102759319A (en) * 2012-07-02 2012-10-31 江苏帝达贝轴承有限公司 Axial clearance measuring device
CN203349754U (en) * 2013-06-26 2013-12-18 中国人民解放军第五七二一工厂 Universal bearing axial clearance measurement tool
CN105134789A (en) * 2015-08-18 2015-12-09 洛阳轴研科技股份有限公司 Self-lubricating rotary table bearing and axial play match grinding method thereof
CN205090916U (en) * 2015-10-22 2016-03-16 重庆齿轮箱有限责任公司 Measurement device for be used for measuring combination thrust roller bearing axial internal clearance

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102022965A (en) * 2010-10-23 2011-04-20 瓦房店轴承集团有限责任公司 Device for measuring axial internal clearance of matched angular contact ball bearing
CN102435120A (en) * 2011-09-14 2012-05-02 瓦房店工业冶金轴承制造有限公司 Outward double-row tapered roller bearing inner race measurement method
CN102759319A (en) * 2012-07-02 2012-10-31 江苏帝达贝轴承有限公司 Axial clearance measuring device
CN203349754U (en) * 2013-06-26 2013-12-18 中国人民解放军第五七二一工厂 Universal bearing axial clearance measurement tool
CN105134789A (en) * 2015-08-18 2015-12-09 洛阳轴研科技股份有限公司 Self-lubricating rotary table bearing and axial play match grinding method thereof
CN205090916U (en) * 2015-10-22 2016-03-16 重庆齿轮箱有限责任公司 Measurement device for be used for measuring combination thrust roller bearing axial internal clearance

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Application publication date: 20181009

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