CN103217247B - A kind of turntable bearing starting friction torgue measurement method - Google Patents
A kind of turntable bearing starting friction torgue measurement method Download PDFInfo
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- CN103217247B CN103217247B CN201310129689.3A CN201310129689A CN103217247B CN 103217247 B CN103217247 B CN 103217247B CN 201310129689 A CN201310129689 A CN 201310129689A CN 103217247 B CN103217247 B CN 103217247B
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- mounting hole
- inside race
- outer collar
- hole center
- starting friction
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Abstract
The invention belongs to bearing frictional torque fields of measurement, relate generally to a kind of turntable bearing starting friction torgue measurement method.Described measuring method is: fixed jacket circle (1), makes certain inside race mounting hole center be L to the length of an outer collar mounting hole line of centres; Apply an acting force along described line direction, make inside race (2) relative to outer collar (1) smooth starting, this power is exactly the tangential force at inside race mounting hole center, i.e. inside race starting friction power F '; Finally try to achieve starting friction moment M according to formula M=F ' × r.The present invention proposes the butt of inside race mounting hole center tangential force to easily realizing and can overcoming the deviation between tangential force and actual value recorded, and make measurement result more accurate, method is practical and convenient.
Description
Technical field
The invention belongs to bearing frictional torque fields of measurement, relate generally to a kind of turntable bearing starting friction torgue measurement method.
Background technology
Moment of friction weighs an important indicator of bearing dynamic property.The bearing moment of face required when required moment of face and lasting rotation when starting is different.In order to be distinguished them, moment of face required when being started at first by bearing is called staring torque.At present, China's bearing industry does not also formulate the technical standard of bearing frictional torque.The regulation also ununified to the method for testing of starting friction moment, only has some to mention (as JB/T 10705-2007 rolling bearing bearing of wind power generator) in relevant criterion.But the method specified in this standard is difficult to accurately realize tangential direction in actual measurement.
As shown in Figure 1, described turntable bearing has outer collar 1 and inside race 2; Described outer collar 1 has along the circumferential direction uniform outer collar mounting hole 5, and the line of centres of multiple described outer collar mounting hole 5 forms outer collar mounting hole center circle 3; The radius of described outer collar mounting hole center circle 3 is R; Traditional measuring method is fixing inside race 2, tangential force is acted on some mounting holes of outer collar 1, thus outer collar 1 is moved, and measures the friction force F of outer collar startup; Starting friction moment M is tried to achieve according to formula M=F × R.But, carry out by this way measuring maximum drawback be the butt of the friction force F that outer collar starts in actual measurement to being difficult to realize, thus easily cause the deviation between the actual value that records and actual value larger.
Summary of the invention
In order to solve existing turntable bearing starting friction torgue measurement method, when detecting, tangential force is difficult to the problem accurately realized, and the object of the invention is to propose a kind of turntable bearing starting friction torgue measurement method.
The present invention adopts following technical scheme for completing above-mentioned purpose:
A kind of turntable bearing starting friction torgue measurement method, described turntable bearing has inside race and outer collar, described inside race has along the circumferential direction uniform inside race mounting hole, and the line of centres of multiple described inside race mounting hole forms inside race mounting hole center circle; Described outer collar has along the circumferential direction uniform outer collar mounting hole, and the line of centres of multiple described outer collar mounting hole forms outer collar mounting hole center circle; Described inside race mounting hole center radius of a circle is r, and described outer collar mounting hole center radius of a circle is R; Described measuring method is: fixed jacket circle, makes certain inside race mounting hole center be L to the length of an outer collar mounting hole line of centres; Direction along described inside race mounting hole center and the outer collar mounting hole line of centres applies an acting force, and inside race is started relative to outer collar, and this power is exactly the tangential force at inside race mounting hole center, i.e. inside race starting friction power F '; Finally try to achieve starting friction moment M according to formula M=F ' × r.
Described L is 1/2 of the line segment length that the tangent line of inside race mounting hole center circle and outer collar mounting hole center circle are formed.
The butt of the inside race mounting hole center tangential force F ' that the present invention proposes is to easily realizing and can overcoming the deviation between tangential force and actual value recorded, and make measurement result more accurate, method is practical and convenient.
Accompanying drawing explanation
Fig. 1 is the measuring principle figure of wind-powered turntable bearing moment of friction in JB/T 10705-2007.
Fig. 2 is the measuring principle figure of turntable bearing frictional torque of the present invention.
In figure: 1, outer collar, 2, inside race, 3, outer collar mounting hole center circle, 4, inside race mounting hole center circle, 5, outer collar mounting hole, 6, inside race mounting hole.
embodiment:
With specific embodiment, the present invention is illustrated by reference to the accompanying drawings:
As shown in Figure 2, a kind of turntable bearing starting friction torgue measurement method, described turntable bearing has inside race 1 and outer collar 2, described inside race 1 has along the circumferential direction uniform inside race mounting hole 6, and the line of centres of multiple described inside race mounting hole 6 forms inside race mounting hole center circle 4; Described outer collar 2 has along the circumferential direction uniform outer collar mounting hole 5, and the line of centres of multiple described outer collar mounting hole 5 forms outer collar mounting hole center circle 3; The radius of described inside race mounting hole center circle 4 is r, and the radius of described outer collar mounting hole center circle 3 is R; Described measuring method is: fixed jacket circle 1, and tangential force is acted on inside race 2, makes the inside race mounting hole described in certain be L to the length of an outer collar mounting hole line of centres; Described L is 1/2 of the line segment length that the tangent line of inside race mounting hole center circle 4 and outer collar mounting hole center circle 3 are formed; Apply a power along described inside race mounting hole center and the outer collar mounting hole line of centres, make inside race smooth starting.This power is exactly the tangential force at inside race mounting hole center, i.e. inside race starting friction power F '; Finally try to achieve starting friction moment M according to formula M=F ' × r.
With reference to Fig. 2, described inside race mounting hole center circle 4 radius is r, described outer collar mounting hole center circle 3 radius is R; According to formula L=
draw the tangent section length L of inside race mounting hole center circle 4 to outer collar mounting hole center circle 3; Adjustment turntable bearing, makes some inside race mounting hole 6 centers equal L to the length of outer collar mounting hole 5 line of centres; Now, fixed jacket circle 1, a power is applied along described inside race mounting hole center and the outer collar mounting hole line of centres, make inside race 2 that smooth rotation occur, measure inside race 2 and the inside race starting friction power F ' of outer collar 1 from geo-stationary to relative motion, namely this power be the tangential force at inside race mounting hole center; Finally try to achieve starting friction moment M according to formula M=F ' × r.
Claims (1)
1. a turntable bearing starting friction torgue measurement method, described turntable bearing has outer collar (1) and inside race (2), described inside race (2) has along the circumferential direction uniform inside race mounting hole (6), and the line of centres of multiple described inside race mounting hole (6) forms inside race mounting hole center circle (4); Described outer collar (1) has along the circumferential direction uniform outer collar mounting hole (5), and the line of centres of multiple described outer collar mounting hole (5) forms outer collar mounting hole center circle (3); The radius of described inside race mounting hole center circle (4) is r, and the radius of described outer collar mounting hole center circle (3) is R; It is characterized in that: described measuring method is fixed jacket circle (1), make certain inside race mounting hole center be L to the length of an outer collar mounting hole line of centres; Direction along described inside race mounting hole center and the outer collar mounting hole line of centres applies an acting force, make inside race (2) relative to outer collar (1) smooth starting, this power is exactly the tangential force at inside race mounting hole center, i.e. inside race starting friction power F '; Finally try to achieve starting friction moment M according to formula M=F ' × r; Described L is 1/2 of the line segment length that the tangent line of inside race mounting hole center circle (4) and outer collar mounting hole center circle (3) are formed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310129689.3A CN103217247B (en) | 2013-04-15 | 2013-04-15 | A kind of turntable bearing starting friction torgue measurement method |
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| CN201310129689.3A CN103217247B (en) | 2013-04-15 | 2013-04-15 | A kind of turntable bearing starting friction torgue measurement method |
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| CN103217247A CN103217247A (en) | 2013-07-24 |
| CN103217247B true CN103217247B (en) | 2015-08-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109186856B (en) * | 2018-10-30 | 2020-10-13 | 中国航发哈尔滨轴承有限公司 | Calibration method and measurement method for pressure value of starting friction torque measuring instrument |
| CN110207875B (en) * | 2019-07-15 | 2020-11-13 | 北京遥感设备研究所 | Double-layer rolling bearing friction torque testing device and testing method |
| CN111089725A (en) * | 2020-02-19 | 2020-05-01 | 洛阳Lyc轴承有限公司 | Large-torque turntable bearing rotation starting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001330031A (en) * | 2000-05-24 | 2001-11-30 | Nsk Ltd | Rolling bearing device and method of determining pre- load thereof |
| CN201416602Y (en) * | 2009-06-12 | 2010-03-03 | 浙江万诚风电装备制造有限公司 | Slewing bearing assembling machine |
| CN102032848B (en) * | 2010-12-02 | 2012-06-13 | 洛阳轴研科技股份有限公司 | Method for detecting multiple technical indexes of turntable bearing by using detecting platform |
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Effective date of registration: 20200323 Address after: 471000 in No. 275, Kaiyuan Avenue, Luolong Science Park, Luolong District, Luoyang City, Henan Province Patentee after: Luoyang Luozhou Precision Bearing Co., Ltd Address before: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: LUOYANG LYC BEARING Co.,Ltd. |
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