CN106640947B - A kind of angular contact ball bearing and its design method - Google Patents
A kind of angular contact ball bearing and its design method Download PDFInfo
- Publication number
- CN106640947B CN106640947B CN201611227718.XA CN201611227718A CN106640947B CN 106640947 B CN106640947 B CN 106640947B CN 201611227718 A CN201611227718 A CN 201611227718A CN 106640947 B CN106640947 B CN 106640947B
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- Prior art keywords
- raceway
- bearing
- steel ball
- curvature
- camber line
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Classifications
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- 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
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
- F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
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- 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
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention provides a kind of angular contact ball bearing and its design methods, angular contact ball bearing includes inside and outside bearing ring and the steel ball that is mounted between inside and outside bearing ring, bearing ring is equipped with the raceway cooperated with steel ball rolling, shape of the raceway on the section for crossing bearing ring axis is the multistage camber line connected and composed by least two sections of camber lines, wherein one section of camber line corresponds to raceway workspace, for workspace raceway camber line, its radius of curvature R=f*Dw, f is raceway coefficient of curvature, and Dw is steel ball size；Another section of camber line is connected to one end of workspace raceway camber line, and is located at the side of steel ball radial direction, and radius is equal to the radius of steel ball.Angular contact ball bearing of the invention greatly reduces radial internal clearance and end-play, reduces channel depth, increases bearing internal external circle wall thickness, avoids interior outer bearing ring radial-play, stability of rotation.
Description
Technical field
The present invention relates to field of bearings more particularly to a kind of angular contact ball bearing and its design methods.
Background technique
The biggish bearing of traditional angular contact thrust ball bearing, especially contact angle, such as using in ball screw framework
The cross sectional shape of interior bearing, inside and outside circle raceway is all one section of circular arc of certain curvature, as shown in Figure 1, where outer rollaway nest D
Whole section of circular arc curvature it is consistent.This class bearing there are many deficiencies place: first, since its contact angle α is larger, radial internal clearance and
End-play is larger, and in transport, carrying, installation process, inner ring 4, outer ring 2 are collided seriously, influences the performance of bearing.Second,
The inside and outside circle raceway wall thickness d of bearing is smaller, and bearing collar path is too deep, and deflection is larger in heat treatment and mill process.
Third, bearing end-play is larger, is easy the sequence of sanqu songs within a particular musical mode, bearing accuracy is caused to lose.4th, the inside and outside circle axial movement value of bearing is big,
Internal and external cycle is also very big with respect to deflection angle, is easy to happen shaking between Internal and external cycle when vibration.
Summary of the invention
The purpose of the present invention is to provide a kind of angular contact ball bearings, reduce the inside and outside mutual radial-play of circle of bearing；Together
When, the present invention also provides the design methods of this angular contact ball bearing.
To achieve the above object, the technical solution of angular contact ball bearing of the invention is: a kind of angular contact ball bearing, including
Inside and outside bearing ring and the steel ball being mounted between inside and outside bearing ring, bearing ring, which is equipped with, to be cooperated with steel ball rolling
Raceway, shape of the raceway on the section for crossing bearing ring axis is the multistage arc connected and composed by least two sections of camber lines
Line, wherein one section of camber line corresponds to raceway workspace, it is workspace raceway camber line, radius of curvature R=f*Dw, f is raceway curvature
Coefficient, Dw are steel ball size；Another section of camber line is connected to one end of workspace raceway camber line, and is located at the one of steel ball radial direction
Side, radius of curvature are less than R, more than or equal to the radius of curvature of steel ball excircle.
Angular contact ball bearing of the invention only raceway workspace be radius of curvature R=f*Dw camber line, be located at steel ball diameter
Shape to the raceway nonclient area of the side in direction is that radius of curvature is greater than R, less than or equal to the radius of curvature of steel ball excircle
Camber line, such raceway workspace can satisfy the normal use of angular contact ball bearing, and the camber line of nonclient area compares tradition again
Angular contact ball bearing raceway nonclient area camber line curvature it is big, reduce the depth of raceway in the position, reduce radial direction
Clearance reduces the play amplitude of bearing internal external lasso in radial directions, in addition, increasing the wall thickness of bearing ring, reduces
Deflection of the bearing ring when being heat-treated and grinding processing.
Further, the radius of curvature for another section of camber line for being connected to one end of workspace raceway camber line is selected equal to
When the radius of curvature of steel ball excircle, the radial and axial clearance of angular contact ball bearing is minimum, and bearing operation is most stable.
The contact angle of the angular contact ball bearing is 60 °.
The other end of workspace raceway camber line extends on the periphery of bearing ring.
The Contact Ellipse when design method of angular contact ball bearing of the invention, first calculating bearing maximum load is long by half
Axis determines the workspace and nonclient area of raceway；Then the workspace and nonclient area of design processing raceway, and make workspace
Shape is radius of curvature R=f*Dw camber line on the section for crossing bearing ring axis, wherein f is raceway coefficient of curvature, and Dw is
Steel ball size, the shape of the nonclient area of the radial direction side positioned at steel ball of raceway is to cross bearing ring axis when use
Section on radius of curvature be less than R, more than or equal to steel ball outer peripheral surface radius of curvature camber line.
The shape of the nonclient area of the radial direction side positioned at steel ball of raceway is in the section for crossing bearing ring axis
Upper radius of curvature is equal to the circular arc of the radius of curvature of steel ball excircle.
Contact area when bearing maximum load is calculated according to the size of contact angle, and determines the raceway work of bearing ring
Area.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of traditional angular contact ball bearing；
Fig. 2 be angular contact ball bearing of the invention embodiment structural schematic diagram (wherein dotted line for convenience of comparison and show
The raceway shape for the prior art shown).
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment of angular contact ball bearing of the invention, as shown in Fig. 2, angular contact ball bearing of the invention includes interior
Bearing ring 4, outer bearing ring 2 and the steel ball 3 being mounted between inside and outside bearing ring.It is equipped on inside and outside bearing ring
The raceway of cooperation is rolled with steel ball 3.
Shape of the raceway on the section for crossing bearing ring axis is the multistage camber line connected and composed by two sections of camber lines.In addition
For the raceway of bearing ring, as shown in Fig. 2, wherein section A-B camber line corresponds to raceway workspace, it is workspace raceway camber line,
Its radius of curvature R=f*Dw, f are raceway coefficient of curvature, and Dw is steel ball size, and section A-B camber line extends to the interior of outer bearing ring
On circumferential surface.Another section of camber line is connected to the other end of workspace raceway camber line, and when in use positioned at the outer of steel ball radial direction
Side (one end raceway in Fig. 2 on the right side of B point), the radius of this section of camber line are equal to the radius OB of steel ball.The raceway of inner bearing lasso with
The raceway design principle of outer bearing casing is identical, on the outer peripheral surface of inner bearing lasso.In the present embodiment, angular contact ball bearing
Contact angle α be 60 °, certainly, in other embodiments, can also apply the invention to contact angle be other numerical value corner connection
It touches on ball bearing.
Angular contact ball bearing of the invention design when, first according to the size of contact angle calculate bearing maximum load when
Contact Ellipse major semiaxis determines the workspace and nonclient area of raceway；Wherein the radius of curvature of workspace is using the design being driven
Method changes the radius of curvature of raceway and by curvature for nonclient area since Contact Ellipse major semiaxis and rolling bottom point of intersection
Radius is changed into equal to steel ball radius.That is, making workspace raceway arc at the workspace and nonclient area of raceway
Line is radius of curvature R=f*Dw camber line on the section for crossing bearing ring axis, and make raceway when in use is located at steel
The shape of the nonclient area of the radial direction side of ball is that radius is equal to steel ball radius on the section for crossing bearing ring axis
Circular arc.
Shape of the raceway of angular contact ball bearing of the invention on the section for crossing bearing ring axis is connected by two sections of camber lines
It connects, the nonclient area raceway shape positioned at workspace side is the circular arc that radius is equal to steel ball radius, other side inoperative
The raceway shape in area be with the consistent camber line of workspace raceway shape, in other embodiments, positioned at the non-of workspace two sides
The raceway shape of workspace can all be radius circular arc identical with steel ball radius.
In other embodiments, the shape of the nonclient area of the radial direction side positioned at steel ball of raceway is curvature half
Diameter be less than R=f*Dw, greater than steel ball excircle radius of curvature camber line, that is to say, that the shape of this section of raceway be in Fig. 2
Camber line between middle curve D and steel ball outer peripheral surface place circumference.
The big reduction radial internal clearance of angular contact ball bearing of the invention and end-play, avoid in transport, carrying, installed
Steel ball and Internal and external cycle severe crash, ensure that bearing performance in journey；Groove depth is reduced, bearing internal external circle wall thickness is increased,
Reduce deflection in heat treatment and mill process；Bearing end-play is obviously reduced, and reduces sequence of sanqu songs within a particular musical mode probability, avoid bearing because
Precision caused by the sequence of sanqu songs within a particular musical mode is lost；Bearing internal external circle axial internal clearance is substantially reduced, reduces Internal and external cycle with respect to deflection angle, operating
Steadily, feel is fine.
Claims (7)
1. a kind of angular contact ball bearing, including inside and outside bearing ring and the steel ball being mounted between inside and outside bearing ring, axis
Bearing ring is equipped with the raceway cooperated with steel ball rolling, which is characterized in that the raceway is on the section for crossing bearing ring axis
Shape be the multistage camber line connected and composed by least two sections of camber lines, wherein one section of camber line corresponds to raceway workspace, for work
Area's raceway camber line, radius of curvature R=f*Dw, f are raceway coefficient of curvature, and Dw is steel ball size；Another section of camber line is connected to work
One end of area's raceway camber line, and it is located at the side of steel ball radial direction, radius of curvature is less than R, is more than or equal to steel ball excircle
Radius of curvature, with reduce be located at steel ball radial direction side nonclient area raceway depth, according to angular contact ball axis
The Contact Ellipse major semiaxis when size calculating bearing maximum load of feeler is accepted, determines the workspace and nonclient area of raceway.
2. angular contact ball bearing according to claim 1, which is characterized in that be connected to one end of workspace raceway camber line
The radius of curvature of another section of camber line is equal to the radius of curvature of steel ball excircle.
3. angular contact ball bearing according to claim 1, which is characterized in that the contact angle of the angular contact ball bearing is
60°。
4. angular contact ball bearing according to claim 1 or 2 or 3, which is characterized in that the other end of workspace raceway camber line
It extends on the periphery of bearing ring.
5. a kind of design method of angular contact ball bearing, which is characterized in that calculated according to the size of angular contact ball bearing contact angle
Contact Ellipse major semiaxis when bearing maximum load determines the workspace and nonclient area of raceway；The workspace of raceway and
Nonclient area, and make workspace raceway camber line radius of curvature R=f*Dw camber line on the section for crossing bearing ring axis,
In, f is raceway coefficient of curvature, and Dw is steel ball size, the nonclient area of the radial direction side positioned at steel ball of raceway when use
Shape be that radius of curvature is less than R, the radius of curvature more than or equal to steel ball excircle on the section for crossing bearing ring axis
Camber line, to reduce the depth of the raceway of the nonclient area for the side for being located at steel ball radial direction.
6. the design method of angular contact ball bearing according to claim 5, which is characterized in that the diameter positioned at steel ball of raceway
Shape to the nonclient area of direction side is that radius of curvature is equal to steel ball excircle on the section for crossing bearing ring axis
The circular arc of radius of curvature.
7. the design method of angular contact ball bearing according to claim 5, which is characterized in that according to the big subtotal of contact angle
Contact area when bearing maximum load is calculated, and determines the raceway workspace of bearing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611227718.XA CN106640947B (en) | 2016-12-27 | 2016-12-27 | A kind of angular contact ball bearing and its design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611227718.XA CN106640947B (en) | 2016-12-27 | 2016-12-27 | A kind of angular contact ball bearing and its design method |
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| Publication Number | Publication Date |
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| CN106640947A CN106640947A (en) | 2017-05-10 |
| CN106640947B true CN106640947B (en) | 2019-03-22 |
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| CN201611227718.XA Active CN106640947B (en) | 2016-12-27 | 2016-12-27 | A kind of angular contact ball bearing and its design method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151624A (en) * | 2017-11-03 | 2018-06-12 | 洛阳轴承研究所有限公司 | A kind of measuring method of the original contact angle of angular contact ball bearing |
| CN110186948A (en) * | 2019-05-14 | 2019-08-30 | 重庆大学 | A kind of bearing ring and ball thermal contact resistance measuring system and measurement method |
| CN114593139B (en) * | 2022-02-24 | 2022-09-13 | 哈尔滨理工大学 | Retainer-free bearing for controlling friction force of rolling body |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2454079A1 (en) * | 1973-11-15 | 1975-05-22 | Rolls Royce 1971 Ltd | BALL-BEARING |
| JPS61286608A (en) * | 1985-06-12 | 1986-12-17 | Nippon Thompson Co Ltd | Raceway groove of linear motion ball bearing |
| JPH0396717A (en) * | 1989-09-11 | 1991-04-22 | Koyo Seiko Co Ltd | Radial ball bearing |
| JPH0473422A (en) * | 1990-07-13 | 1992-03-09 | Koyo Seiko Co Ltd | Ball bearing made of ceramics |
| JPH09177795A (en) * | 1995-12-26 | 1997-07-11 | Ntn Corp | Ball bearing |
| JP2000291665A (en) * | 1999-04-06 | 2000-10-20 | Nsk Ltd | Rolling bearing |
| JP2002147465A (en) * | 2000-11-13 | 2002-05-22 | Koyo Seiko Co Ltd | Angular contact ball bearing |
| DE112009003533B4 (en) * | 2008-12-09 | 2019-05-23 | Ntn Corporation | Wheel bearing device for a vehicle |
| JP5340866B2 (en) * | 2009-09-17 | 2013-11-13 | Ｎｔｎ株式会社 | Wheel bearing device |
| DE102010002748A1 (en) * | 2010-03-11 | 2011-09-15 | Zf Friedrichshafen Ag | Rolling bearing arrangement for use in vehicle transmission, has bearing outer ring and bearing inner ring, between which rolling body is guided, where rolling body track has two sections with different radius of curvature |
| JP5476173B2 (en) * | 2010-03-19 | 2014-04-23 | Ｎｔｎ株式会社 | Wheel bearing device |
| CN203730548U (en) * | 2014-02-18 | 2014-07-23 | 浙江大元泵业有限公司 | Angular contact ball bearing |
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| CN106640947A (en) | 2017-05-10 |
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Effective date of registration: 20180510 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Applicant after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Applicant before: Zhouyan Science and Technology Co., Ltd., Luoyang |
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