CN111810527A - High-speed high-concentricity combined needle roller bearing assembly - Google Patents

High-speed high-concentricity combined needle roller bearing assembly Download PDF

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Publication number
CN111810527A
CN111810527A CN202010684697.4A CN202010684697A CN111810527A CN 111810527 A CN111810527 A CN 111810527A CN 202010684697 A CN202010684697 A CN 202010684697A CN 111810527 A CN111810527 A CN 111810527A
Authority
CN
China
Prior art keywords
steel ball
retainer
concentricity
shaft ring
speed
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.)
Pending
Application number
CN202010684697.4A
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Chinese (zh)
Inventor
张旭
李大虎
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.)
Suzhou Bearing Factory Co ltd
Original Assignee
Suzhou Bearing Factory 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 Suzhou Bearing Factory Co ltd filed Critical Suzhou Bearing Factory Co ltd
Priority to CN202010684697.4A priority Critical patent/CN111810527A/en
Publication of CN111810527A publication Critical patent/CN111810527A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/49—Bearings with both balls and rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00—Cooling of bearings
    • F16C37/007—Cooling of bearings of rolling bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/20—Application independent of particular apparatuses related to type of movement
    • F16C2300/22—High-speed rotation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention discloses a high-speed high-concentricity combined needle roller bearing assembly which comprises a retainer, needle rollers and a shaft ring, wherein a pocket is arranged on an inner ring of the retainer, a steel ball is rotatably arranged in the pocket, and an arc-shaped channel for guiding and limiting the steel ball to roll is arranged on a flanging and a raceway of the shaft ring. In the bearing rotation process, the steel ball is in point contact with the channel and only has rolling friction, the steel ball mainly acts on the arc-shaped track motion on the shaft ring, the guide retainer moves at a high speed around the shaft ring flanging structure with higher concentricity, the steel ball can bear a small amount of axial load, and the roller pin bears most of the axial load. The structure is suitable for being applied to the scenes of high-speed motion, high concentricity and extremely small radial run-out of a shaft-hole assembly part, the needle bearing can reach higher limit rotating speed with the participation of the steel ball, and meanwhile, the arc-shaped structure of the retainer and the groove of the shaft ring have the oil storage function, so that the heat dissipation can be accelerated, and the friction is reduced.

Description

High-speed high-concentricity combined needle roller bearing assembly
Technical Field
The invention belongs to the technical field of bearings, and particularly relates to a needle bearing.
Background
The common retainer structure of the thrust needle roller bearing assembly comprises a box type and an M type, wherein the inner diameter of the M type retainer is divided into a single flanging and a double flanging, and the inner diameters of the M type retainer are cylindrical surfaces. When the roller pin-retainer assembly moves at a high speed, because no other constraint exists in a radial plane except for the constraint action of the flanging surface of the shaft ring gasket, the surface contact type sliding friction between the roller pin and the retainer assembly in movement always exists, the rotating speed is higher the longer the time is, the more heat is generated, and if the lubrication and heat dissipation are poor, the retainer can be heated in extreme time until the retainer breaks and fails.
Disclosure of Invention
In order to solve the technical problems, the invention is realized by the following technical scheme: a combined needle roller bearing assembly with high speed and high concentricity comprises a retainer, a needle roller and a shaft ring, wherein a pocket is arranged on an inner ring of the retainer, a steel ball is rotatably arranged in the pocket, and an arc-shaped channel for guiding and limiting the rolling of the steel ball is arranged on a flanging and a raceway of the shaft ring.
In the bearing rotation process, the steel ball is in point contact with the channel and only has rolling friction, the steel ball mainly acts on the arc-shaped track motion on the shaft ring, the guide retainer moves at a high speed around the shaft ring flanging structure with higher concentricity, the steel ball can bear a small amount of axial load, and the roller pin bears most of the axial load.
The structure is suitable for being applied to the scenes of high-speed motion, high concentricity and extremely small radial run-out of a shaft-hole assembly part, the needle bearing can reach higher limit rotating speed with the participation of the steel ball, and meanwhile, the arc-shaped structure of the retainer and the groove of the shaft ring have the oil storage function, so that the heat dissipation can be accelerated, and the friction is reduced.
Furthermore, the inner ring of the retainer is provided with an extension edge with a hook-shaped section, and the pocket is arranged on the extension edge.
Drawings
FIG. 1 is a schematic diagram of a thrust needle bearing of two configurations according to the prior art;
FIG. 2 is a schematic view of the cage of the present invention;
FIG. 3 is a top view and a cross-sectional view taken along the needles of view of the present invention 1/4;
FIG. 4 is a top view of the present invention 1/4 and a cross-sectional view taken away from the needles;
FIG. 5 is a schematic view of the collar of the present invention;
fig. 6 is a partially enlarged view of the channel of the collar of the present invention.
Detailed Description
The invention is described in detail below with reference to the following figures and embodiments:
a combined needle roller bearing assembly with high speed and high concentricity comprises a retainer, a needle roller and a shaft ring, wherein a pocket is arranged on an inner ring of the retainer, a steel ball is rotatably arranged in the pocket, and an arc-shaped channel for guiding and limiting the rolling of the steel ball is arranged on a flanging and a raceway of the shaft ring.
In the bearing rotation process, the steel ball is in point contact with the channel and only has rolling friction, the steel ball mainly acts on the arc-shaped track motion on the shaft ring, the guide retainer moves at a high speed around the shaft ring flanging structure with higher concentricity, the steel ball can bear a small amount of axial load, and the roller pin bears most of the axial load.
The structure is suitable for being applied to the scenes of high-speed motion, high concentricity and extremely small radial run-out of a shaft-hole assembly part, the needle bearing can reach higher limit rotating speed with the participation of the steel ball, and meanwhile, the arc-shaped structure of the retainer and the groove of the shaft ring have the oil storage function, so that the heat dissipation can be accelerated, and the friction is reduced.
Furthermore, the inner ring of the retainer is provided with an extension edge with a hook-shaped section, and the pocket is arranged on the extension edge.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims (2)

1. A high-speed high-concentricity combined needle roller bearing assembly comprises a retainer, needle rollers and a shaft ring, and is characterized in that: the inner ring of the retainer is provided with a pocket, a steel ball is rotatably arranged in the pocket, and the turnup edge and the raceway of the shaft ring are provided with arc-shaped channels for guiding and limiting the rolling of the steel ball.
2. The high speed, high concentricity, combined needle roller bearing assembly of claim 1, wherein: the inner ring of the retainer is provided with an extension edge with a hook-shaped section, and the pocket is arranged on the extension edge.
CN202010684697.4A 2020-07-16 2020-07-16 High-speed high-concentricity combined needle roller bearing assembly Pending CN111810527A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010684697.4A CN111810527A (en) 2020-07-16 2020-07-16 High-speed high-concentricity combined needle roller bearing assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010684697.4A CN111810527A (en) 2020-07-16 2020-07-16 High-speed high-concentricity combined needle roller bearing assembly

Publications (1)

Publication Number Publication Date
CN111810527A true CN111810527A (en) 2020-10-23

Family

ID=72866401

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010684697.4A Pending CN111810527A (en) 2020-07-16 2020-07-16 High-speed high-concentricity combined needle roller bearing assembly

Country Status (1)

Country Link
CN (1) CN111810527A (en)

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE366849C (en) * 1923-01-13 Wittener Stahlform Giesserei G Ball bearings for conveyor wagon wheel sets
US3128134A (en) * 1961-07-07 1964-04-07 Francis J L Dorl Triple race tapered roller bearings
FR2513334A1 (en) * 1981-09-24 1983-03-25 Nadella Bearing for motor vehicle front suspension strut - has needle thrust rollers and ball guide bearings for axial and radial location
JPS6021031U (en) * 1983-07-20 1985-02-13 エヌ・テ−・エヌ東洋ベアリング株式会社 Composite bearing
CN88201554U (en) * 1988-03-13 1988-11-23 郭德明 Radial-thrust double layer composite rolling needle bearing
JPH0581763B2 (en) * 1989-05-20 1993-11-16 Schaeffler Waelzlager Kg
CN2379640Y (en) * 1998-08-08 2000-05-24 沈志强 Combination bearing
DE102006041586A1 (en) * 2006-09-05 2008-03-06 Schaeffler Kg Axial needle bearing for use in case of installation with very small overall height, has bearing ball that is arranged radially outside of slot and has diameter that is smaller than diameter of bearing needle
CN101877510A (en) * 2009-04-29 2010-11-03 德昌电机(深圳)有限公司 Motor component used for anti-lock brake system
JP2011133078A (en) * 2009-12-25 2011-07-07 Jtekt Corp Radial/thrust bearing device
CN203412933U (en) * 2013-08-05 2014-01-29 浙江亚科尔轴承有限公司 Plane bearing
CN104220767A (en) * 2011-07-14 2014-12-17 戴维斯-标准有限公司 Combination thrust flange and thrust plate
JP2015021567A (en) * 2013-07-19 2015-02-02 株式会社ジェイテクト Double row bearing
JP2015031390A (en) * 2013-08-07 2015-02-16 株式会社ジェイテクト Thrust roller bearing
JP2015230066A (en) * 2014-06-05 2015-12-21 株式会社ジェイテクト Thrust bearing
CN105209772A (en) * 2013-05-06 2015-12-30 斯凯孚公司 Bearing assembly, mounting of a bevel pinion shaft
JP2016138572A (en) * 2015-01-26 2016-08-04 日本精工株式会社 Thrust roller bearing
CN106687704A (en) * 2014-09-29 2017-05-17 奥依列斯工业株式会社 Thrust bearing for vehicle
CN106979226A (en) * 2017-04-25 2017-07-25 陕西科技大学 A kind of combined magnetic suspension bearing
CN109838461A (en) * 2019-03-20 2019-06-04 江苏持华轴承有限公司 A kind of high-speed bearing of self-lubricating
CN208966865U (en) * 2018-10-25 2019-06-11 杭州萧山金腾轴承有限公司 Needle roller thrust combination bearing is saved in a kind of motor turning

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE366849C (en) * 1923-01-13 Wittener Stahlform Giesserei G Ball bearings for conveyor wagon wheel sets
US3128134A (en) * 1961-07-07 1964-04-07 Francis J L Dorl Triple race tapered roller bearings
FR2513334A1 (en) * 1981-09-24 1983-03-25 Nadella Bearing for motor vehicle front suspension strut - has needle thrust rollers and ball guide bearings for axial and radial location
JPS6021031U (en) * 1983-07-20 1985-02-13 エヌ・テ−・エヌ東洋ベアリング株式会社 Composite bearing
CN88201554U (en) * 1988-03-13 1988-11-23 郭德明 Radial-thrust double layer composite rolling needle bearing
JPH0581763B2 (en) * 1989-05-20 1993-11-16 Schaeffler Waelzlager Kg
CN2379640Y (en) * 1998-08-08 2000-05-24 沈志强 Combination bearing
DE102006041586A1 (en) * 2006-09-05 2008-03-06 Schaeffler Kg Axial needle bearing for use in case of installation with very small overall height, has bearing ball that is arranged radially outside of slot and has diameter that is smaller than diameter of bearing needle
CN101877510A (en) * 2009-04-29 2010-11-03 德昌电机(深圳)有限公司 Motor component used for anti-lock brake system
CN101877510B (en) * 2009-04-29 2014-09-03 德昌电机(深圳)有限公司 Motor component used for anti-lock brake system
JP2011133078A (en) * 2009-12-25 2011-07-07 Jtekt Corp Radial/thrust bearing device
CN104220767A (en) * 2011-07-14 2014-12-17 戴维斯-标准有限公司 Combination thrust flange and thrust plate
CN105209772A (en) * 2013-05-06 2015-12-30 斯凯孚公司 Bearing assembly, mounting of a bevel pinion shaft
JP2015021567A (en) * 2013-07-19 2015-02-02 株式会社ジェイテクト Double row bearing
CN203412933U (en) * 2013-08-05 2014-01-29 浙江亚科尔轴承有限公司 Plane bearing
JP2015031390A (en) * 2013-08-07 2015-02-16 株式会社ジェイテクト Thrust roller bearing
JP2015230066A (en) * 2014-06-05 2015-12-21 株式会社ジェイテクト Thrust bearing
CN106687704A (en) * 2014-09-29 2017-05-17 奥依列斯工业株式会社 Thrust bearing for vehicle
JP2016138572A (en) * 2015-01-26 2016-08-04 日本精工株式会社 Thrust roller bearing
CN106979226A (en) * 2017-04-25 2017-07-25 陕西科技大学 A kind of combined magnetic suspension bearing
CN208966865U (en) * 2018-10-25 2019-06-11 杭州萧山金腾轴承有限公司 Needle roller thrust combination bearing is saved in a kind of motor turning
CN109838461A (en) * 2019-03-20 2019-06-04 江苏持华轴承有限公司 A kind of high-speed bearing of self-lubricating

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Application publication date: 20201023