CN203585097U - Retainer and mute bearing comprising same - Google Patents
Retainer and mute bearing comprising same Download PDFInfo
- Publication number
- CN203585097U CN203585097U CN201320685270.1U CN201320685270U CN203585097U CN 203585097 U CN203585097 U CN 203585097U CN 201320685270 U CN201320685270 U CN 201320685270U CN 203585097 U CN203585097 U CN 203585097U
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- arcuate segment
- retainer
- central point
- curvature
- radius
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Abstract
The utility model provides a retainer and a mute bearing comprising same. The retainer comprises two mutually buckled annular sheets; each annular sheet is provided with a plurality of semispherical pockets; the semispherical pockets form a plurality of spherical pockets when the annular sheets are buckled mutually; along the rotation direction of the bearing, the inner wall surface of each spherical pocket comprises a first arc section, a second arc section and a third arc section which are mutually connected; the distance from the central point of each second arc section to the central point of the corresponding spherical pocket is greater than the distance from the central point of each first arc section to the central point of the corresponding spherical point; the distance from the central point of each second arc section to the central point of the corresponding spherical pocket is greater than the central point of the third arc section to the central point of the corresponding spherical pocket. The descending degree of the retainer relative to a rolling body can be reduced by dividing the inner wall surfaces of the spherical pocket into different arc sections; the bacteria vibration and noises are inhibited; the mute quality is improved.
Description
Technical field
The utility model relates to quiet field of bearings, particularly a kind of retainer and the quiet bearing that comprises it.
Background technique
Bearing is in order to support and positioning rotating shaft, to make it do fixed-axis rotation.Bearing generally can be subdivided into sliding bearing and rolling bearing, and sliding bearing does face with rotating shaft and contacts running, and a contact movement or line contact movement are done in rolling bearing and rotating shaft.Generally speaking, because the area of contact of rolling bearing is less, therefore its rotating effect is comparatively smooth.
Due to the structure of high precision and smooth rotating effect, rolling bearing is widely used in high-accuracy manufacturing industry, for example instrument and apparatus, household electric appliance to such an extent as to astrovehicle.Rolling bearing includes interior ring, outer shroud, rolling element (being generally steel ball) and retainer (being also called retainer), and rolling element is arranged between interior ring and outer shroud, and under the location of retainer and constraint, does ring and roll motion.
General occasion, the running of bearing is relatively quiet, the sound of other utensil and vibrations are far above the caused sound of retainer in bearing.If for example, but for household appliances, the quiet of bearing operation becomes especially important, is used in ceiling fan, refrigerator, air-conditioning system, works as the dead of night, above-mentioned electrical appliance, just likely because the vibrations of retainer produce other different sound, causes to fall asleep night.
For the quality of making the life better, meet the quiet need of family or office, the quiet bearing of studying and developing a kind of retainer and comprise it is particularly necessary.
Model utility content
The technical problems to be solved in the utility model is the defect that the noise of the retainer in order to overcome quiet bearing of the prior art is larger, the quiet bearing that a kind of retainer is provided and comprises it, and this retainer can suppress trickle vibration and noise, promotes quiet quality.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of retainer, comprise two ring segments that mutually fasten, on each ring segment, be provided with multiple hemisphere pockets, those hemisphere pockets form multiple ball pockets when those ring segments fasten mutually, along bearing rotary direction, the internal face of each ball pocket comprises interconnective the first arcuate segment successively, the second arcuate segment and the 3rd arcuate segment, the central point of this second arcuate segment is greater than the central point of this first arcuate segment to the distance of the central point of this ball pocket to the distance of the central point of this ball pocket, the central point of this second arcuate segment is greater than the central point of the 3rd arcuate segment to the distance of the central point of this ball pocket to the distance of the central point of this ball pocket.Under the internal face matter density or abrasion resistance situation that need to improve ball pocket, can also use electroplating technology and light decorations technique to make a wearing layer that degree of finish is higher at the internal face of ball pocket, to reduce the working life of rubbing and examining coefficient and improving ball pocket.
Preferably, the radius of curvature of the radius of curvature of this first arcuate segment and the 3rd arcuate segment equates, the length of this first arcuate segment and the 3rd arcuate segment equal in length, and the length of this first arcuate segment is greater than the length of this second arcuate segment.By improving the structure of internal face of retainer, can, in the case of not changing the parameter of interior ring zanjon and the parameter of outer shroud zanjon, reduce vibration and friction between ball pocket and rolling element, promoted muting function.
Preferably, the radius of curvature of the radius of curvature of this first arcuate segment and this second arcuate segment is concrete numerical value, and the radius of curvature of this first arcuate segment is greater than the radius of curvature of this second arcuate segment.The half that the lower limit of the radius of curvature of this first arcuate segment preferably remains on the numerical value of radial internal clearance adds the numerical value of the radius of curvature of steel ball.
Preferably, the radius of curvature of this second arcuate segment is infinitely great.
Preferably, the annular outer rim of each ball pocket all has punching press projection.
Preferably, on this first arcuate segment and the 3rd arcuate segment, be provided with at least one hemispherical projections.
A kind of quiet bearing, comprises ring in, outer shroud, multiple rolling element, and its feature is, this quiet bearing also comprises retainer as above, and those rolling elements are embedded in those ball pockets.
Preferably, those ball pockets are radial internal clearance along this quiet bearing gap radially, those ball pockets along this quiet bearing shaft to gap be axial internal clearance, this radial internal clearance and this axial internal clearance are 20 microns to 150 microns.
Preferably, this radial internal clearance and this axial internal clearance are 60 microns to 90 microns.
Meeting on the basis of related domain general knowledge, above-mentioned each optimum condition, can combination in any, obtains the each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is: by the internal face of this ball pocket being divided into different arcuate segments, can reduce the deflection of retainer with respect to rolling element, suppress trickle vibration and noise, promote quiet quality.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model embodiment 1 retainer.
Fig. 2 is the stereogram of the ring segment of the retainer in Fig. 1.
Fig. 3 is the structural representation of the retainer of the first structure of the utility model embodiment 1.
Fig. 4 is the structural representation of the retainer of the second structure of the utility model embodiment 1.
Fig. 5 is the structural representation of the utility model embodiment 2 retainer.
Fig. 6 is the structural representation of the utility model embodiment 3 retainer.
Fig. 7 is the course of working schematic diagram of the utility model embodiment 4 retainer.
Fig. 8 is the structural representation of the utility model embodiment 4 retainer.
Fig. 9 is the structural representation of quiet bearing of the utility model embodiment 4.
Description of reference numerals:
Embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
The structure of the retainer of the present embodiment is as follows:
Incorporated by reference to Fig. 1-2, understood, the retainer 3 of the present embodiment comprises two ring segments 31 that mutually fasten, on each ring segment 31, be provided with multiple hemisphere pockets, those hemisphere pockets form multiple ball pockets 30 when those ring segments fasten mutually, and ball pocket is also called pouch in the art.Incorporated by reference to Fig. 3, understood, along bearing rotary direction, the internal face 32 of each ball pocket comprises interconnective the first arcuate segment 321, the second arcuate segment 322 and the 3rd arcuate segment 323 successively, the central point of this second arcuate segment 322 is greater than the central point of this first arcuate segment 321 to the distance of the central point of this ball pocket 30 to the distance of the central point of this ball pocket 30, the central point of this second arcuate segment 322 is also greater than the central point of the 3rd arcuate segment 323 to the distance of the central point of this ball pocket 30 to the distance of these ball pocket 30 central points.
In the present embodiment, please continue to be understood in conjunction with Fig. 3, the radius of curvature of the radius of curvature of this first arcuate segment 321 and the 3rd arcuate segment 323 equates, the length of this first arcuate segment 321 and the 3rd arcuate segment 323 equal in length, and the length of this first arcuate segment 321 is greater than the length of this second arcuate segment 322.The radius of curvature of this second arcuate segment 322 is infinitely great, and this second arcuate segment 322 is also straight line or plane.
During actual fabrication, as shown in Figure 4, the radius of curvature that also can adopt this first arcuate segment 321 is concrete numerical value, and this first arcuate segment 321 is curve or curved surface, and this second arcuate segment 322 is still the structure of straight line or plane.
The gap of radially (can also be quiet bearing radially) along retainer 3 of those ball pockets 30 is radial internal clearance, the gap of axially (can also be quiet bearing shaft to) along retainer 3 of those ball pockets is axial internal clearance, at this radial internal clearance and this axial internal clearance, is in 20 microns to 150 microns situations.Need explanation, in experimentation, find, in the situation that play is less than 20 microns, frictional heat phenomenon between ball pocket 30 and rolling element 4 is comparatively obvious, in the situation that play is greater than 150 microns, between ball pocket 30 and rolling element 4, can produce different sound because of vibration, therefore, during actual production, radial internal clearance and axial internal clearance are preferably controlled in the scope of 60 microns to 90 microns.
Working principle and the technique effect of the retainer of the present embodiment are as follows:
Incorporated by reference to Fig. 3, understood in the process of quiet bearing high speed rotary, rolling element 4(steel ball) be embedded between interior ring and outer shroud, and under the location of retainer 3 and constraint, do ring and roll motion.Due to this first arcuate segment 321 and the 3rd this rolling element 4 of arcuate segment 323 neighbours, the radial internal clearance and the axial internal clearance that are those ball pockets 30 are all less, therefore, between rolling element 4 and ball pocket 30, can not contact or laminating by generation face, reduced vibration or shock between the two, suppress trickle vibration and noise, avoided the generation of different sound, promoted quiet quality.
In addition, between rolling element 4 and internal face 32, be filled with oiling agent, because the second arcuate segment 322 is far away apart from the central point of ball pocket 30, both spaces are larger, therefore oiling agent can be stored in this second arcuate segment 322 places, and continue to the first arcuate segment 321 and the 3rd arcuate segment 323 supplies, therefore extended lubrication time, avoid burning rolling element or retainer, the working life of having improved bearing.
The structure of the retainer of the present embodiment is as follows:
Incorporated by reference to Fig. 5, understood, the retainer of the present embodiment and embodiment's 1 retainer has more something in common, do not repeat them here, the difference of the retainer of the present embodiment and embodiment's 1 retainer is mainly: this first arcuate segment 321, this second arcuate segment 322 and the 3rd arcuate segment 323 are curve or curved surface, and the radius of curvature of this first arcuate segment 321 is greater than the radius of curvature of this second arcuate segment 322.As required, the radius of curvature of this second arcuate segment 322 can select to be greater than any numerical value of 500 microns.
Working principle and the technique effect of the retainer of the present embodiment are as follows:
Please continue to be understood in conjunction with Fig. 5, during work, the internal face of rolling element 4 and ball pocket 30 only has partial surface to contact, between this second arcuate segment 322 and rolling element 4, there is the storage area of larger lubricant oil, therefore not only reduce the frictional force between rolling element 4 and ball pocket 30, also greatly extended the working life of retainer.In addition, in view of this second arcuate segment 322 is equivalent to bending stiffening rib, there is good elastic performance, even if under the limit case that is subject to impact force, space between rolling element 4 and ball pocket 30 still can be increased or be dwindled by the flexibly telescopic variation of this second arcuate segment 322, then can suppress high vibration and noise, reach the effect that keeps high quiet quality.
Structure and the technique effect of the retainer of the present embodiment are as follows:
Please continue to be understood in conjunction with Fig. 5, in embodiment 2, rolling element 4 has with the first arcuate segment 321 situation that partial surface contacts.Muting function is being required to occasion very harshly, incorporated by reference to Fig. 6, understood, on this first arcuate segment 321 and the 3rd arcuate segment 323, be provided with hemispherical projections 33, can certainly adopt elliposoidal projection to replace, even if now under the environment being impacted, the internal face of rolling element 4 and ball pocket 30 also only may exist and contact, and be the rolling contact between rolling element and hemispherical projections 33, it is almost nil that the rubbing of this contact examined coefficient, and vibration and noise between rolling element 4 and ball pocket 30 are very faint.
Structure and the technique effect of the retainer of the present embodiment are as follows:
Excessive for fear of corner and class chamfering, and the deflection (equaling radial internal clearance) of reduction retainer, the present embodiment also provides a kind of improved retainer making technology.Same as the prior art, this retainer making technology also comprises this ring segment 31 of use spheroid punching press, and then the step of making ball pocket 30; Unlike the prior art, incorporated by reference to Fig. 7, understood, this retainer making technology also comprises the annular outer rim 300 with press tool 5 punching press ball pockets 30, and then in the inner side of its annular outer rim, produces the step of punching press projection.Annular outer rim by the retainer to the various embodiments described above is carried out punching press, incorporated by reference to Fig. 8, is understood, and the annular outer rim 300 of each ball pocket all has punching press projection, and punching press projection can reduce the deflection of retainer further, promotes quiet effect.
The structure of the quiet bearing of the present embodiment is as follows:
Incorporated by reference to Fig. 9, understood, the present embodiment also provides a kind of quiet bearing 6, comprise in an outer shroud 1, one, encircle 2, retainer as above 3 and multiple rolling element 4, those rolling elements 4 are embedded in the ball pocket of this retainer 3.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection domain of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these mode of executions, but these changes and modification all fall into protection domain of the present utility model.
Claims (9)
1. a retainer, comprise two ring segments that mutually fasten, on each ring segment, be provided with multiple hemisphere pockets, those hemisphere pockets form multiple ball pockets when those ring segments fasten mutually, it is characterized in that, along bearing rotary direction, the internal face of each ball pocket comprises interconnective the first arcuate segment successively, the second arcuate segment and the 3rd arcuate segment, the central point of this second arcuate segment is greater than the central point of this first arcuate segment to the distance of the central point of this ball pocket to the distance of the central point of this ball pocket, the central point of this second arcuate segment is greater than the central point of the 3rd arcuate segment to the distance of the central point of this ball pocket to the distance of the central point of this ball pocket.
2. retainer as claimed in claim 1, it is characterized in that, the radius of curvature of the radius of curvature of this first arcuate segment and the 3rd arcuate segment equates, the length of this first arcuate segment and the 3rd arcuate segment equal in length, and the length of this first arcuate segment is greater than the length of this second arcuate segment.
3. retainer as claimed in claim 2, is characterized in that, the radius of curvature of the radius of curvature of this first arcuate segment and this second arcuate segment is concrete numerical value, and the radius of curvature of this first arcuate segment is greater than the radius of curvature of this second arcuate segment.
4. retainer as claimed in claim 2, is characterized in that, the radius of curvature of this second arcuate segment is infinitely great.
5. the retainer as described in any one in claim 1-4, is characterized in that, the annular outer rim of each ball pocket all has punching press projection.
6. retainer as claimed in claim 5, is characterized in that, on this first arcuate segment and the 3rd arcuate segment, is provided with at least one hemispherical projections.
7. a quiet bearing, comprises in one ring, outer shroud, multiple rolling element, it is characterized in that, this quiet bearing also comprises the retainer described in any one in claim 1-6, and those rolling elements are embedded in those ball pockets.
8. quiet bearing as claimed in claim 7, it is characterized in that, those ball pockets are radial internal clearance along this quiet bearing gap radially, those ball pockets along this quiet bearing shaft to gap be axial internal clearance, this radial internal clearance and this axial internal clearance are 20 microns to 150 microns.
9. quiet bearing as claimed in claim 8, is characterized in that, this radial internal clearance and this axial internal clearance are 60 microns to 90 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685270.1U CN203585097U (en) | 2013-10-31 | 2013-10-31 | Retainer and mute bearing comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685270.1U CN203585097U (en) | 2013-10-31 | 2013-10-31 | Retainer and mute bearing comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585097U true CN203585097U (en) | 2014-05-07 |
Family
ID=50583027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320685270.1U Expired - Fee Related CN203585097U (en) | 2013-10-31 | 2013-10-31 | Retainer and mute bearing comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585097U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314981A (en) * | 2014-10-11 | 2015-01-28 | 无锡明珠钢球有限公司 | Rolling bearing retaining ring |
| CN105041874A (en) * | 2015-07-13 | 2015-11-11 | 青岛泰德汽车轴承股份有限公司 | Bearing retainer |
| CN107709805A (en) * | 2015-06-22 | 2018-02-16 | Ntn株式会社 | Retainer And Deep Groove Ball Bearing |
| CN110869217A (en) * | 2017-07-10 | 2020-03-06 | 惠普发展公司，有限责任合伙企业 | Bearing assembly |
| CN116337451A (en) * | 2023-05-29 | 2023-06-27 | 山东金帝精密机械科技股份有限公司 | Mute optimization method, equipment and medium for elliptical bearing retainer |
-
2013
- 2013-10-31 CN CN201320685270.1U patent/CN203585097U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314981A (en) * | 2014-10-11 | 2015-01-28 | 无锡明珠钢球有限公司 | Rolling bearing retaining ring |
| CN107709805A (en) * | 2015-06-22 | 2018-02-16 | Ntn株式会社 | Retainer And Deep Groove Ball Bearing |
| CN105041874A (en) * | 2015-07-13 | 2015-11-11 | 青岛泰德汽车轴承股份有限公司 | Bearing retainer |
| CN105041874B (en) * | 2015-07-13 | 2017-06-23 | 青岛泰德汽车轴承股份有限公司 | Retainer |
| CN110869217A (en) * | 2017-07-10 | 2020-03-06 | 惠普发展公司，有限责任合伙企业 | Bearing assembly |
| CN116337451A (en) * | 2023-05-29 | 2023-06-27 | 山东金帝精密机械科技股份有限公司 | Mute optimization method, equipment and medium for elliptical bearing retainer |
| CN116337451B (en) * | 2023-05-29 | 2023-08-22 | 山东金帝精密机械科技股份有限公司 | Mute optimization method, equipment and medium for elliptical bearing retainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20161031 |