CN201662453U - Tester for starting friction torque of miniature bearing - Google Patents

Tester for starting friction torque of miniature bearing Download PDF

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Publication number
CN201662453U
CN201662453U CN2010201128156U CN201020112815U CN201662453U CN 201662453 U CN201662453 U CN 201662453U CN 2010201128156 U CN2010201128156 U CN 2010201128156U CN 201020112815 U CN201020112815 U CN 201020112815U CN 201662453 U CN201662453 U CN 201662453U
Authority
CN
China
Prior art keywords
bearing
mandrel
starting friction
friction torque
miniature
Prior art date
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.)
Expired - Lifetime
Application number
CN2010201128156U
Other languages
Chinese (zh)
Inventor
朱孔敏
李国斌
廖家祥
胡波
高奋武
刘金秀
熊子健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luoyang Bearing Research Institute Co Ltd
Original Assignee
Luoyang Bearing Science and Technology 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.)
Filing date
Publication date
Application filed by Luoyang Bearing Science and Technology Co Ltd filed Critical Luoyang Bearing Science and Technology Co Ltd
Priority to CN2010201128156U priority Critical patent/CN201662453U/en
Application granted granted Critical
Publication of CN201662453U publication Critical patent/CN201662453U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a tester for the starting friction torque of a miniature bearing. The tester comprises an electromagnetic torque generator with a drive coded disc and a bearing support core shaft as well as an axial loading sleeve assembly; when the starting friction torque is detected, the axial loading sleeve assembly is nested on the outer ring of the miniature bearing on the bearing support core shaft that is vertically and fixedly arranged; and the drive coded disc and the axial loading sleeve assembly are concentrically and fixedly mounted together. The axial loading sleeve assembly comprises a bearing sleeve and a bearing pressing sleeve, the lower end part of the bearing pressing sleeve is sunk in a sleeve hole of the bearing sleeve, the overhanging edge of the upper end part of the bearing pressing sleeve is set up on the upper end surface of the bearing sleeve, the drive coded disc is clamped between the overhanging edge of the bearing pressing sleeve and the bearing sleeve through a central hole thereof, and the bearing pressing sleeve, the drive coded disc and the bearing sleeve are connected into a whole through a fastening piece; and a carrier is arranged on the bearing sleeve. The utility model effectively solves the measuring difficulty of the starting friction torque of the miniature bearing.

Description

Miniature bearing starting friction torque detector
Technical field
The utility model relates to a kind of moment of friction measurement mechanism, particularly miniature bearing starting friction torque detector.
Background technology
Miniature bearing starting friction performance is one of important technology index of miniature bearing dynamic property quality, it is the key factor that influences bearing life and influence host computer system reliability and accuracy, especially the miniature bearing that uses in the contour sophisticated technology of space flight, aviation, navigation, be operated under the normal entry condition, its moment of friction size and undulating quantity directly have influence on life-span, stability and the reliability of system works, therefore starting friction moment are had extremely strict requirement.
Chinese invention patent application 200710054386.4 discloses a kind of non-contact type bearing starting friction torque detector, it mainly comprises the electromagnetic torque generator and is used to support support mandrel and the cylinder charger that measured bearing is installed, wherein, support mandrel is made of air spindle and air bearing, the bottom of air spindle is installed in the center pit of driving code-disc of electromagnetic torque generator, be in transmission connection with the driving code-disc, during measurement, measured bearing is installed in the upper end of air spindle, the loading cover of cylinder charger suppresses the outer ring of measured bearing, imposes axial load to bearing; After the electromagnetic torque generator starts, the electromagnetic torque that produces acts on and drives on the code-disc, the bearing that is driven on the air spindle by code-disc rotates, by correspondence drive photoelectric sensor monitoring measured bearing that code-disc installs from static state to starting operating condition, and provide signal, stop to apply power input by computer controlled automatic, and record current power value, this performance number is the starting friction moment values of measured bearing.This friction torque testing instrument has adopted parts such as air spindle, air bearing, cylinder loading, its physical construction more complicated, cost is higher, and it is mainly used in the starting friction moment of measuring big-and-middle-sized bearing, and the energy measurement miniature bearing does not get starting friction moment.
Summary of the invention
The purpose of this utility model provides a kind of tester of suitable measurement miniature bearing starting friction moment, to solve the not problem of energy measurement miniature bearing of existing bearing starting friction torque detector.
For achieving the above object, the utility model adopts following technical scheme: miniature bearing starting friction torque detector, comprise and have electromagnetic torque generator and the bearings mandrel that drives code-disc and axially load grip assembly, during detection, axially loading the grip assembly cover is pressed on the outer ring that is set in the miniature bearing on the bearings mandrel, described bearings mandrel is vertically and fixedly installs, described driving code-disc with load axially that grip assembly is concentric to be fixedly installed togather.
Described bearing loads grip assembly and comprises support cover and Bearing housing, the bottom of Bearing housing is sunken in the trepanning of support cover, the overhanging edge of Bearing housing upper end is erected on the upper surface of support cover, drive code-disc and be interposed between overhanging edge of Bearing housing and the support cover by its center pit portion, Bearing housing, driving code-disc and support cover link into an integrated entity by securing member; The support cover is provided with the loading body.
The center of described Bearing housing is provided with the through hole that passes for the Bearing Installation section on the bearing mandrel, has radial play between this through hole and the Bearing Installation section.
The described carrier that adds is annular, and fixed cover is located on the outside surface of support cover lower end.
The bottom of described bearings mandrel coincide and only revolves in the mandrel jack that is inserted into a mandrel base.
Be dismantled and assembled the cooperation between described bearings mandrel and the mandrel base.
Described bearings mandrel only revolves by the radial direction top thread on the mandrel Socket walls that is screwed in the mandrel base.
Utilize the utility model can monitor the operating condition that miniature bearing starts automatically, solved the measurement difficult problem of miniature bearing starting friction moment effectively, by quantitative measurment to miniature bearing starting friction moment values, for providing reliable detection, the influence factor of analyzing the bearing frictional behaviour analyzes data, improve design bearing parameter, improvement processing technology according to this and lubricating etc. strengthened the influence factor of bearing frictional torque, thereby improve the inherent quality of miniature bearing, for reliability and the accuracy that improves host computer system creates conditions.
The utility model utilization adds carrier measured bearing is imposed axial load, and is simple and practical, cost is low; Be made as dismantled and assembled the cooperation between bearings mandrel and the mandrel base, so just can realize measurement, thereby enlarge the scope of application of tester by changing the bearing mandrel of different size to the miniature bearing of different size.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Miniature bearing starting friction torque detector shown in Figure 1, comprise and have electromagnetic torque generator 6 and the bearings mandrel 5 that drives code-disc 2, photoelectric sensor 1 and axially load grip assembly, wherein, bearings mandrel 5 vertically is provided with, its bottom coincide and only to revolve in the removable mandrel jack that is inserted into a mandrel base 9, and bearings mandrel 5 is realized only revolving by the radial direction top thread on the mandrel Socket walls that is screwed in the mandrel base; Bearing loads grip assembly and comprises support cover 7 and Bearing housing 3, the bottom of Bearing housing 3 is sunken in the trepanning of support cover 7, the overhanging edge of Bearing housing 3 upper ends is erected on the upper surface of support cover 7, driving code-disc 2 is interposed between overhanging edge of Bearing housing and the support cover 7 by its center pit portion, Bearing housing 3, drive code-disc 2 and support cover 7 and link into an integrated entity with one heart by securing member, overlap in support to be set with on the outside surface of 7 lower ends and add carrier 8, this adds carrier and is annular, and above-mentioned support cover 7 is an aluminium matter support cover; Electromagnetic torque generator 6 is a prior art.
In use, tested miniature bearing 4 is sleeved on the Bearing Installation section of bearing mandrel 5, and the center of Bearing housing 2 is provided with through hole, and Bearing housing 3 is pressed on the outer ring of tested miniature bearing 4 when the Bearing Installation section on the bearing mandrel is passed this through hole.For the starting friction moment that guarantees tested miniature bearing 4 is unique loading moment, be provided with radial play between the Bearing Installation section with the through hole of Bearing housing 3 and bearing mandrel.

Claims (7)

1. miniature bearing starting friction torque detector, comprise and have electromagnetic torque generator and the bearings mandrel that drives code-disc and axially load grip assembly, during detection, axially loading the grip assembly cover is pressed on the outer ring that is set in the miniature bearing on the bearings mandrel, it is characterized in that: described bearings mandrel is vertically and fixedly installs, described driving code-disc with load axially that grip assembly is concentric to be fixedly installed togather.
2. miniature bearing starting friction torque detector according to claim 1, it is characterized in that: described bearing loads grip assembly and comprises support cover and Bearing housing, the bottom of Bearing housing is sunken in the trepanning of support cover, the overhanging edge of Bearing housing upper end is erected on the upper surface of support cover, drive code-disc and be interposed between overhanging edge of Bearing housing and the support cover by its center pit portion, Bearing housing, driving code-disc and support cover link into an integrated entity by securing member; The support cover is provided with the loading body.
3. miniature bearing starting friction torque detector according to claim 2 is characterized in that: the center of described Bearing housing is provided with the through hole that passes for the Bearing Installation section on the bearing mandrel, has radial play between this through hole and the Bearing Installation section.
4. according to claim 2 or 3 described miniature bearing starting friction torque detectors, it is characterized in that: the described carrier that adds is annular, and fixed cover is located on the outside surface of support cover lower end.
5. according to claim 1 or 2 or 3 described miniature bearing starting friction torque detectors, it is characterized in that: the bottom of described bearings mandrel coincide and only revolves in the mandrel jack that is inserted into a mandrel base.
6. miniature bearing starting friction torque detector according to claim 4 is characterized in that: be dismantled and assembled the cooperation between described bearings mandrel and the mandrel base.
7. miniature bearing starting friction torque detector according to claim 5 is characterized in that: described bearings mandrel only revolves by the radial direction top thread on the mandrel Socket walls that is screwed in the mandrel base.
CN2010201128156U 2010-02-11 2010-02-11 Tester for starting friction torque of miniature bearing Expired - Lifetime CN201662453U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201128156U CN201662453U (en) 2010-02-11 2010-02-11 Tester for starting friction torque of miniature bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201128156U CN201662453U (en) 2010-02-11 2010-02-11 Tester for starting friction torque of miniature bearing

Publications (1)

Publication Number Publication Date
CN201662453U true CN201662453U (en) 2010-12-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201128156U Expired - Lifetime CN201662453U (en) 2010-02-11 2010-02-11 Tester for starting friction torque of miniature bearing

Country Status (1)

Country Link
CN (1) CN201662453U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322995A (en) * 2011-08-12 2012-01-18 洛阳轴研科技股份有限公司 The pairing micro rolling ball bearing applies friction torque test method under the axial load face-to-face
CN109781320A (en) * 2018-12-25 2019-05-21 北京青云航空仪表有限公司 A kind of no inner-ring bearing friction torque testing instrument and test method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322995A (en) * 2011-08-12 2012-01-18 洛阳轴研科技股份有限公司 The pairing micro rolling ball bearing applies friction torque test method under the axial load face-to-face
CN102322995B (en) * 2011-08-12 2012-11-28 洛阳轴研科技股份有限公司 Face-to-face pairing miniature ball bearing friction torque test method under application axial direction load
CN109781320A (en) * 2018-12-25 2019-05-21 北京青云航空仪表有限公司 A kind of no inner-ring bearing friction torque testing instrument and test method
CN109781320B (en) * 2018-12-25 2021-01-05 北京青云航空仪表有限公司 Friction moment tester and testing method for bearing without inner ring

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Luoyang axis research Pml Precision Mechanism Ltd

Assignor: Zhouyan Science and Technology Co., Ltd., Luoyang

Contract record no.: 2012410000018

Denomination of utility model: Tester for starting friction torque of miniature bearing

Granted publication date: 20101201

License type: Exclusive License

Record date: 20120314

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180514

Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan

Patentee after: Luoyang Bearing Research Institute

Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan.

Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang

CX01 Expiry of patent term

Granted publication date: 20101201

CX01 Expiry of patent term