CN101493118B - Novel channel single-row centripetal ball bearing - Google Patents
Novel channel single-row centripetal ball bearing Download PDFInfo
- Publication number
- CN101493118B CN101493118B CN2008101222460A CN200810122246A CN101493118B CN 101493118 B CN101493118 B CN 101493118B CN 2008101222460 A CN2008101222460 A CN 2008101222460A CN 200810122246 A CN200810122246 A CN 200810122246A CN 101493118 B CN101493118 B CN 101493118B
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- China
- Prior art keywords
- outer ring
- outline
- inner ring
- high speed
- ball bearing
- 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 - Fee Related
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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
- 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
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
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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
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
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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
- F16C19/166—Four-point-contact ball bearings
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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 novel groove single-row centripetal ball bearing. The existing single-row centripetal ball bearing can not simultaneously realize the relative high speed revolution and reduce the mutual displacement and/or shaking of an inner ring and an outer ring while bearing the larger radical force. The novel bearing comprises the outer ring, the inner ring, a retainer and a plurality of rolling balls. The outer ring is provided with an outer ring groove and the inner ring is provided with an inner ring groove. A plurality of rolling balls are arranged between the outer ring groove and the inner ring groove and keep a special distribution mode by the retainer. The novel bearing is characterized in that the line profile of the cross section of the outer ring groove and/or the inner ring groove at least comprises a high speed line profile which is arranged at the bottom and suitable for high speed revolution and an anti-channeling line profile which is arranged on two lateral parts; wherein the high speed line profile guarantees that the single-row centripetal ball bearing can realize the relative high speed revolution of the inner ring and the outer ring while bearing the larger radical force, and the anti-channeling line profile reduces the mutual displacement and/or shaking of the inner ring and the outer ring, thus achieving the purpose of the invention.
Description
Technical field
The present invention relates to a kind of bearing, especially a kind of ball bearing of taking into account high speed rotating simultaneously and reducing axial float.
Background technique
In the existing single-row centripetal ball bearing, the cross section lines of outer ring raceway mostly are the circular arc lines of curvature greater than the ball radius, ball with in, outer ring raceway is the form of 2 contacts, be ball and some contact and contact totally two point of contact of the bottom of trench of bear inner ring grooved railway with any of the bottom of trench of outer ring raceway, the heating value of raceway groove when the high speed rotating performance of this single-row centripetal ball bearing depends on rotation, and what of heating value are with interior, the amount of curvature of the circular arc lines of outer ring raceway is negative correlation, be that curvature is big more, in, heating value was few more when the outer ring rotated relatively, be suitable for high speed rotating more, but in, the shifting amount to axial of outer ring and rolling momentum are all bigger, Location accuracy is not high, and accuracy life is limited; Produce less relative play when inside and outside circle rotates relatively and/or rock if wish, then must reduce the curvature of raceway groove circular arc lines, the curvature that is about to raceway groove circular arc lines is designed to basic radius near ball, heating when so just causing inside and outside circle to rotate relatively increases, and is difficult to realize the relative high speed rotating of inside and outside circle.
In the prior art, single-row centripetal ball bearing adopts the form of 3 contacts in addition, be ball with a bit the contacting of the bottom of trench of bear inner ring grooved railway (point of contact C) with contact (point of contact A/B with 2 of the sidepiece of outer ring raceway, see Fig. 5 contact a) or with 2 of the sidepiece of bear inner ring grooved railway (point of contact E/F) with the bottom of trench of outer ring raceway a bit contact (point of contact D sees Fig. 5 b) totally three point of contact; In addition, single-row centripetal ball bearing adopts the form of 4 contacts in addition, and promptly 2 of the sidepiece of ball and bear inner ring grooved railway contact (point of contact G/H) and contact (point of contact J/K sees Fig. 6) totally four point of contact with 2 of the sidepiece of outer ring raceway.Though the contact form of these two kinds of structures can be realized very little axial float and/or rocks by contacting with 2 of raceway groove sidepiece, but because two point of contact on the same raceway groove contact with ball when inside and outside circle rotates relatively all the time, the sliding friction aggravation of ball and inside and outside circle raceway groove, the heat that produces also increases thereupon, therefore is not suitable for realizing high speed rotating.
Therefore, design to single-row centripetal ball bearing all is to weigh to carry out in attending to one thing and lose sight of another all the time, fail when taking the characteristics that single-row centripetal ball bearing bears big radial force into account not only to realize relative high speed rotating of inside and outside circle but also the satisfactory to both parties scheme that reduces the mutual play of inside and outside circle and/or rock.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is to overcome existing single-row centripetal ball bearing can not be when taking the characteristics of bearing big radial force into account not only to have realized relative high speed rotating of inside and outside circle but also the defective that reduces the mutual play of inside and outside circle and/or rock, and a kind of novel channel single-row centripetal ball bearing is provided.For this reason, the present invention adopts following technical proposals:
Novel channel single-row centripetal ball bearing, comprise the outer ring, inner ring, retainer and plurality of balls, described outer ring has outer ring raceway, described inner ring has bear inner ring grooved railway, described plurality of balls is held in it at described outer ring raceway between described outer ring raceway and bear inner ring grooved railway and by described retainer, rotate relative to inner ring the described outer ring of scrolling realization on the bear inner ring grooved railway, it is characterized in that: the cross section outline of described outer ring raceway and/or bear inner ring grooved railway comprises high speed outline that is suitable for high speed rotating that is positioned at the bottom and the anti-channeling outline that is positioned at two sidepieces at least.
The invention has the beneficial effects as follows: the cross section outline of raceway groove has comprised high speed outline and two the anti-channeling outlines that are suitable for high speed rotating, high speed outline assurance single-row centripetal ball bearing is wherein realized the relative high speed rotating of inside and outside circle when taking the characteristics of bearing big radial force into account, the anti-channeling outline then reduces the mutual play of inside and outside circle and/or rocks, and reaches purpose of the present invention thus.
Description of drawings
Fig. 1 is the radial section structural representation of a kind of single-row centripetal ball bearing of the present invention.
Fig. 2 is the cross section outline of the bear inner ring grooved railway of a kind of single-row centripetal ball bearing of the present invention.
Fig. 3 is the local enlarged diagram of Fig. 2.
Fig. 4 is the cross section outline of the outer ring raceway of a kind of single-row centripetal ball bearing of the present invention.
Fig. 5 a is the radial section structural representation of a kind of 3 contact-type structures of existing single-row centripetal ball bearing.
Fig. 5 b is the radial section structural representation of 3 contact-type structures of another kind of existing single-row centripetal ball bearing.
Fig. 6 is the radial section structural representation of 4 contact-type structures of existing single-row centripetal ball bearing.
Among the figure: the 1-outer ring, the 2-inner ring, 3-retainer, 4-ball, the 5-outer ring raceway, the 6-bear inner ring grooved railway, 7A/7B-cross section outline, 8A/8B-high speed outline, 9A/9B-anti-channeling outline, the 10A/10B-outline that caves in, 11A/11B-breach outline, A/B/C/D/E/F/G/H/J/K/M/N-ball point of contact.
Embodiment
Technological scheme of the present invention is described further with embodiment below in conjunction with accompanying drawing.
As shown in Figure 1, this novel channel single-row centripetal ball bearing comprises outer ring 1, inner ring 2, retainer 3 and plurality of balls 4, wherein: outer ring 1 has outer ring raceway 5, inner ring 2 has bear inner ring grooved railway 6, ball 4 is held in specific distribution mode with it between outer ring raceway 5 and bear inner ring grooved railway 6 and by retainer 3, thereby make the outer ring, when inner ring relatively rotates, ball 4 is at outer ring raceway 5, roll on the bear inner ring grooved railway 6, wherein said by retainer with ball be held in specific distribution mode be meant for the ease of by ball at outer ring raceway, rotate relative to inner ring the scrolling realization outer ring on the bear inner ring grooved railway, common distribution mode is that ball evenly distributes, also have ball in twos one group equally distributed, do not repeat them here, the cross section outline 7A of bear inner ring grooved railway 6 (the cross section outline shown in the figure is the outline of inner ring radial section) comprises high speed outline 8A that is suitable for high speed rotating that is positioned at the bottom and the anti-channeling outline 9A that is positioned at two sidepieces.
The outer ring 1 of this novel channel single-row centripetal ball bearing, when inner ring 2 relatively rotates, ball 4 is equally at outer ring raceway 5, roll on the bear inner ring grooved railway 6, relative prior art, ball 4 does not change (point of contact N) with the fit system of outer ring raceway 5, ball 4 then changes with the fit system of bear inner ring grooved railway 6: at first ball contacts on the high speed outline 8A of bear inner ring grooved railway 6 (point of contact M), in when taking the characteristics of bearing big radial force into account, realizing, the relative high speed rotating in outer ring, there is not axial float and/or when rocking, the anti-channeling outline of two sidepieces does not contact with ball, when interior, there is axial float the outer ring and/or when rocking (perhaps, there is axial float the outer ring and/or during the tendency of rocking, this in practice tendency be difficult for often discovering or detect obtain), the anti-channeling outline 9A of two sidepieces then alternately prevents axial float and/or rocks with instantaneous contact of ball, guarantee that ball turns round in the scope of permission, must not the deviation permit track, the heating value of rotation is not high, rock also not quite, realize making the best of both worlds with this.Because the anti-channeling outline of two sidepieces can not contact simultaneously with ball, and when preventing axial float and/or rocking also is instantaneous the contact with ball of one of them anti-channeling outline, so can be as the relative high speed rotating of the inside and outside circle of influence of the single-row centripetal ball bearing of 3 contacts of prior art, 4 contact forms.
According to inventive concept of the present invention, can also be the structural type beyond the technological scheme shown in Figure 1, as only the cross section outline 7B of outer ring raceway being designed to comprise the high speed outline 8B that is suitable for high speed rotating that is positioned at the bottom and being positioned at the anti-channeling outline 9B (referring to Fig. 4) of two sidepieces and the cross section outline 7A of bear inner ring grooved railway being designed to only be fit to the structural type (is the circular arc lines of radius of curvature greater than the ball radius as the cross section lines) of high speed rotating, in perhaps inciting somebody to action simultaneously, the cross section outline of outer ring raceway all is designed to comprise high speed outline that is suitable for high speed rotating that is positioned at the bottom and the anti-channeling outline that is positioned at two sidepieces, be about to Fig. 2, in shown in Figure 4, the structure of outer ring raceway is applied on the same single-row centripetal ball bearing simultaneously,, no longer specify to the high speed outline and be positioned at the effect of anti-channeling outline of two sidepieces and the technique effect that brings is illustrated in view of preamble at this to doing at these two kinds of structural types.
In addition, as to further the improving and replenishing of technique scheme, the present invention also comprises following additional technical characteristics, so as when to state technological scheme on the implementation with following each section technical measures independent or combine arbitrarily and be applied to technique scheme:
The cross section outline 7A/7B of outer ring raceway 5 and/or bear inner ring grooved railway 6 also comprises the depression outline 10A/10B between high speed outline and anti-channeling outline, to reach enhance heat and to store lubricated effect.
The cross section outline 7A/7B of outer ring raceway 5 and/or bear inner ring grooved railway 6 also comprises the breach outline 11A/11B that is positioned at the anti-channeling outline outside, prevents that there is corner angle gouge ball in trench edges when bearing assembles.
Claims (4)
1. novel channel single-row centripetal ball bearing, comprise outer ring (1), inner ring (2), retainer (3) and plurality of balls (4), described outer ring (1) has outer ring raceway (5), described inner ring (2) has bear inner ring grooved railway (6), described plurality of balls (4) is positioned between described outer ring raceway (5) and the bear inner ring grooved railway (6) and by described retainer (3) it is held at described outer ring raceway, rotate relative to inner ring the described outer ring of scrolling realization on the bear inner ring grooved railway, it is characterized in that: the cross section outline (7A/7B) of described outer ring raceway (5) and/or bear inner ring grooved railway (6) comprises high speed outline (8A/8B) that is suitable for high speed rotating that is positioned at the bottom and the anti-channeling outline (9A/9B) that is positioned at two sidepieces at least.
2. novel channel single-row centripetal ball bearing according to claim 1 is characterized in that described high speed outline (8A/8B) and/or anti-channeling outline (9A/9B) are curve or straight line.
3. novel channel single-row centripetal ball bearing according to claim 1 is characterized in that the cross section outline (7A/7B) of described outer ring raceway (5) and/or bear inner ring grooved railway (6) also comprises the depression outline (10A/10B) that is positioned between described high speed outline (8A/8B) and the described anti-channeling outline (9A/9B).
4. according to claim 1,2 or 3 described novel channel single-row centripetal ball bearings, it is characterized in that the cross section outline (7A/7B) of described outer ring raceway (5) and/or bear inner ring grooved railway (6) also comprises the breach outline (11A/11B) that is positioned at described anti-channeling outline (9A/9B) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101222460A CN101493118B (en) | 2008-11-05 | 2008-11-05 | Novel channel single-row centripetal ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101222460A CN101493118B (en) | 2008-11-05 | 2008-11-05 | Novel channel single-row centripetal ball bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101493118A CN101493118A (en) | 2009-07-29 |
| CN101493118B true CN101493118B (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101222460A Expired - Fee Related CN101493118B (en) | 2008-11-05 | 2008-11-05 | Novel channel single-row centripetal ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101493118B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3246584A1 (en) * | 2016-05-18 | 2017-11-22 | Gereedschapswerktuigenindustrie Hembrug B.V. | A ball bearing and a method of finishing a grooved raceway |
| CN106195015B (en) * | 2016-08-30 | 2019-04-02 | 上海斐赛轴承科技有限公司 | A kind of crossed roller bearing and preparation method thereof of the raceway with convexity |
| CN106194999B (en) * | 2016-09-29 | 2019-03-19 | 上海斐赛轴承科技有限公司 | A kind of harmonic speed reducer Multi-contact flexible bearing |
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2008
- 2008-11-05 CN CN2008101222460A patent/CN101493118B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101493118A (en) | 2009-07-29 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20090729 Assignee: Hangzhou sincere automobile bearing Co., Ltd Assignor: Chen Bingshun Contract record no.: 2015330000182 Denomination of invention: Novel channel single-row centripetal ball bearing Granted publication date: 20100811 License type: Exclusive License Record date: 20150703 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20191105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |