CN207864418U - Unilateral bearing - Google Patents
Unilateral bearing Download PDFInfo
- Publication number
- CN207864418U CN207864418U CN201820060517.3U CN201820060517U CN207864418U CN 207864418 U CN207864418 U CN 207864418U CN 201820060517 U CN201820060517 U CN 201820060517U CN 207864418 U CN207864418 U CN 207864418U
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- Prior art keywords
- rolling element
- bearing
- housing
- inner sleeve
- unilateral bearing
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Abstract
The utility model discloses a kind of unilateral bearings, the inner sleeve of unilateral bearing is connected with housing by the rolling element of several tapered distributions, one end of rolling element circumferentially offsets certain angle, and projection of the end of the rolling element homonymy after offset in end face is uniformly distributed.Rolling element one end of unilateral bearing provided by the utility model is circumferentially offset, inner sleeve and housing can realize two kinds of effects of frictional force between passing power and reduction rotary part by different relative rotation directions, and the rolling element of conical distribution has higher bearing capacity.
Description
Technical field
The utility model is related to frame for movement technical field, more specifically to a kind of unilateral bearing.
Background technology
Bearing is the base components in machine, is widely used in the engineering goods of all trades and professions, and " closing for machine is known as
Section ".
Common bearing has taper roll bearing, needle bearing etc., the bearing of the prior art in the process of work, bearing
The rolling elements such as internal ball, needle roller, taper roller usually only reduce the effect of frictional force between rotary body by scrolling realization, and
It can not be as needed into the transmission of action edge；And can with the bearing capacity axially and radially of the unilateral bearing of passing power compared with
It is low, it generally requires that other cylinder roller bearings is coordinated to be used together.
In conclusion how to provide a kind of bearing capacity it is high, can passing power unilateral bearing, be current art technology
Personnel's urgent problem to be solved.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of unilateral bearing, can be realized according to different rotation directions
Two kinds of effects of frictional force between passing power and reduction rotary part, and there is higher bearing capacity.
To achieve the goals above, the utility model provides the following technical solutions：
A kind of unilateral bearing, including housing, inner sleeve and several rolling elements, the rolling element be between inner sleeve and housing
One end of conical distribution, each rolling element is circumferentially offset, and the end of whole described rolling element the same sides is in end face
Projection on be uniformly distributed.
Preferably, further include being set to retainer between the housing and the inner sleeve, the retainer circumferentially arranged with
With the one-to-one limiting section of the rolling element.
Preferably, the rolling element is cylindrical roller.
Preferably, the outer surface of the rolling element is equipped with wearing layer.
Preferably, the lubricant for reducing abrasion is equipped between the rolling element and the retainer.
Preferably, the end face of the housing is equipped with sealing ring.
The inner sleeve of unilateral bearing provided by the utility model is connected with housing by the rolling element of several tapered distributions,
One end of rolling element circumferentially offsets certain angle, and projection of the end of the rolling element homonymy after offset in end face uniformly divides
Cloth.
One end of rolling element is circumferentially offset in the utility model, and the axis of rolling element and the central shaft of unilateral bearing are in different
EDS maps.When inner sleeve and housing are rotated relative to a direction, rolling element has the tendency that close conical top movement, and housing is to rolling
The pressure of body increases, and rolling element is in by the state that inner sleeve and housing clamp and can not normally roll at this time, therefore rolling element card
Between inner sleeve and housing and the relative rotation that both prevents, bearing carry out the transmission of torque.When inner sleeve and housing are relative to another
When one direction rotation, rolling element has the tendency that close conical lower portion movement, and inner sleeve and housing do not have relative pressure at this time, roll
Body, in the state rolled, keeps jacket and inner sleeve rotation flexible between inner sleeve and housing, unilateral bearing realization support rotary shaft,
The effect of frictional force between reduction rotary part.
In addition, due to the tapered distribution of rolling element, after unilateral bearing stress active force can be analyzed to along rolling element it is radial and
Axial component, compared with prior art the bearing capacity higher of unilateral bearing provided by the present application.
One end of the rolling element of unilateral bearing provided by the utility model is circumferentially offset, and makes inner sleeve and housing only can be along one
A direction relatively rotates, and reduces the frictional force of rotary part；And another direction can not then be freely rotated, bearing is in locking shape
State is gone forward side by side the transmission of action edge.And unilateral bearing provided by the present application has the effect of that bearing capacity is high.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is provided the vertical view of specific embodiment by the utility model；
Fig. 2 is sectional view along A-A in Fig. 1；
Fig. 3 be in Fig. 1 A-A to structural schematic diagram.
Reference numeral in Fig. 1-3 is：
Housing 1, inner sleeve 2, retainer 3, rolling element 4, inclination angle 5.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The core of the utility model is to provide a kind of unilateral bearing, and inner sleeve and housing can be freely rotated in one direction,
Another direction locking go forward side by side action edge transmission；And unilateral bearing can axially and radially bear the load of bigger in rotation process
Lotus has higher bearing capacity.
Please refer to Fig.1 the vertical view that -3, Fig. 1 is provided specific embodiment by the utility model；Fig. 2 be in Fig. 1 A-A to cuing open
View；Fig. 3 be in Fig. 1 A-A to structural schematic diagram.
The utility model provides a kind of unilateral bearing, including several rolling elements 4, rolling element 4 inner sleeve 2 and housing 1 it
Between tapered distribution, one end of each rolling element 4 circumferentially offsets, and the end of 4 the same side of whole rolling elements is in end face
It is uniformly distributed in projection.
Specifically, unilateral bearing includes inner sleeve 2, housing 1 and rolling element 4, inner sleeve 2 is used to be socketed the periphery of rotary shaft, outside
Set 1 is connect with other structures, and inner sleeve 2 realizes relative rotation or unidirectional locking with housing 1 by several rolling elements 4, and then makes
Component inside and outside unilateral bearing realizes relative rotation or the transmission of power.
One end of each rolling element 4 is circumferentially deviated towards the same direction, and the angle of offset is inclination angle 5, offset
The central shaft antarafacial of the axis of rolling element 4 and bearing is distributed afterwards, and in view of bearing usually has more symmetrical structure, each
Inclination angle 5 is preferably equal angular.
The outer ring surface of the inner sleeve 2 of unilateral bearing is the conical surface, and rolling element 4 itself, which is cylinder or periphery, has certain taper
Column structure, several rolling elements 4 are uniformly distributed in the outer ring surface of inner sleeve 2, thus 4 one end of rolling element apart from unilateral bearing (with
Lower abbreviation bearing) central shaft farther out, the other end it is closer apart from bearing central shaft, several rolling elements 4 are integrally conical structure.
In addition, for convenience of hereinafter described, the one end larger with the spacing of bearing centre axis of rolling element 4 is known as big end, small-pitch one
End is known as small end.
Since one end of rolling element 4 (big end or small end) has circumferentially offset an inclination angle 5,2 He of inner sleeve in the application
When housing 1 is rotated relative to a direction, the suffered resultant force of rolling element 4 is biased to the direction of conical top (i.e. small end), and rolling element 4 leans on
The trend of nearly small end motion, housing 1 increase the pressure of 4 periphery of rolling element, lead to the friction of rolling element 4 and housing 1 and inner sleeve 2
Power increases and can not normally roll, and the state that presentation inner sleeve 2 and housing 1 clamp rolling element 4 at this time, i.e. rolling element 4 are stuck in interior
Between set 2 and housing 1 and the two is prevented to relatively rotate, bearing carries out the transmission of torque.When inner sleeve 2 and housing 1 are relative to another
When a direction rotation, rolling element 4 has the tendency that close conical lower portion (i.e. big end) movement, and rolling element is in inner sleeve 2 and housing 1 at this time
Between in the state rolled, inner sleeve 2 and housing 1 do not have relative pressure, and the two rotation is flexible, bearing realize support rotary shaft,
The effect of frictional force between reduction rotary part.
It should be understood that unilateral bearing is in the side that lockup state or rotary state are relatively rotated by inner sleeve 2 and housing 1
To the both ends of, rolling element 4 along the opposite offset direction of bearing radial direction, 4 both ends of rolling element along the opposite offset direction of bearing circumferential direction
Etc. multifactor co-determination.For example, installation direction identical two unilateral bearing identical with 1 structure of housing for inner sleeve 2, if
Direction that rolling element 4 is circumferentially offset on the contrary, two unilateral bearing state in which are just the opposite when then rotating in the same direction,
I.e. one in lockup state, another be in rotary state.Therefore 4 end of rolling element offset direction circumferentially and deviation angle
Spend real work demand of being subject to.
For example, with reference to figure 1 and Fig. 3, the big end of rolling element 4 is in shift state counterclockwise.When housing 1 is relative to inner sleeve 2
When rotating counterclockwise, rolling element 4 is slided to conical top (i.e. small end) direction, and is stuck between inner sleeve 2 and housing 1, at this time axis
Hold locking；When housing 1 is rotated clockwise relative to inner sleeve 2, rolling element 4 is slided to conical lower portion (i.e. big end) direction, at this time
Housing 1 and inner sleeve 2 are freely rotated.It should be understood that when the circumferential offset direction of rolling element 4 is opposite, the locking of bearing and turn
Dynamic state and the above situation are just the opposite, are not repeating herein.
One end of the rolling element 4 of bearing provided by the present application is circumferentially offset, and makes inner sleeve 2 and housing 1 only can be along a side
To relative rotation, and another direction can not be freely rotated makes bearing locking, realize the effect of bearing single-direction transmission.And this Shen
The bearing that please be provided can make in the mechanism that bicycle, motor bicycle, motorcycle, automobile etc. need progress unidirectional power transmission
With use scope is extensive, and practicability is higher.
In addition, the bearing capacity of the unilateral bearings such as cam type, dagger type is usually relatively low in the prior art, cause load larger
When need be used cooperatively with other cylinder roller bearings so that unilateral bearing normal work.And rolling element 4 is in circular cone in the application
Shape is distributed, and the active force born using the bearing of the structure can be analyzed to the component in the radial and axial direction of rolling element 4, therefore
The bearing of the structure can bear connected load axially and radially.Since the radial pressure that can be born of rolling element 4 is significantly larger than axis
To the pressure that can be born, unilateral bearing compared with the prior art, unilateral bearing provided by the present application can be held in rotation process
By the load of bigger, make unilateral bearing that can individually be used, no longer needs to that other bearings is coordinated to carry out pressure-bearing.
Optionally, unilateral bearing further includes being set to retainer 3 between housing 1 and inner sleeve 2, retainer 3 circumferentially arranged with
With 4 one-to-one limiting section of rolling element.
Specifically, retainer 3 is loop configuration, several rolling elements 4 are centered on the central shaft of bearing at surrounding center
It is uniformly distributed.The annular profile of retainer 3 offers and the limiting sections such as 4 one-to-one groove of rolling element or through-hole, rolling element 4
It is embedded in the limiting section of retainer 3 close to the side of bearing centre axis, retainer 3 wraps up rolling element 4, limiting section
The relative position acting as between limitation rolling element 4, it is more preferable during the work time to carry out to keep rolling element 4 mutually isolated
It rolls and slides.
It in actual use can be according to the working environment of bearing to the intensity of retainer 3, thermal conductivity, wearability, punching
The multiple parameters such as toughness are hit to be considered and reasonably selected.
Further, in order to simplify processing technology, processing cost is reduced, rolling element 4 is cylindrical roller.Specifically, cylinder
The periphery of roller rolls or is slidably connected with the inner ring surface of housing 1 and the outer ring surface of inner sleeve 2 respectively.Using cylindrical roller as rolling
The kinetoplast 4 and structure of the tapered distribution of cylindrical roller is more convenient for being processed unilateral bearing.
Spring is arranged between inner sleeve 2 and housing 1 or is processed into cylindrical roller not for unilateral bearing in the prior art
Regular shape realizes that unidirectional locking, the processing technology of unilateral bearing are complicated.And columned rolling element 4 is used in the application, outside
Set 1 and the opposite curved surface of inner sleeve 2 are circular conical surface.Linear interpolation or straight line grinding can be used in above structure during processing
Processing can be completed, have the characteristics that easy to process, high precision machining, processing cost are low.It should be understood that housing 1 and inner sleeve 2
May be the curve with certain curvature on sectional view in an axial direction, but the structure does not influence to provided by the present application unidirectional
Bearing carries out the process of linear interpolation.
Further, in order to extend the service life of bearing, on the basis of the above embodiments, the outer surface of rolling element 4 is equipped with
Wearing layer.Specifically, in order to reduce abrasion, rolling element 4 can be carried out heat treatment or the outer surface of rolling element 4 be coated with hardness compared with
High coating extends the service life of bearing to improve the wear-resisting property of rolling element 4.
It should be understood that the service life of bearing can also be improved by way of lubrication.That is Bearing inner setting lubrication
The lubricants such as oil, lubricating grease extend bearing to reduce the friction of the parts that contact with each other such as housing 1, rolling element 4, retainer 3
Service life.
Optionally, in order to enhance the sealing effect of bearing, the end face of housing 1 is equipped with sealing ring.The purpose of sealing ring is set
It is to prevent the lubricant of Bearing inner from leaking outside or avoiding the harmful substances such as external dust, moisture, foreign matter to enter Bearing inner,
Keep bearing safe and lasting work.Certainly also optional that bearing is sealed in other ways.
Optionally, on the basis of any one above-mentioned embodiment, the angular range at inclination angle 5 is 2 degree to 30 degree.It needs
Bright, the angular range at inclination angle 5 is without being limited thereto, in practical work process to the tool of unilateral bearing stress size and Orientation
Subject to body demand.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
Unilateral bearing provided by the utility model is described in detail above.Specific case pair used herein
The principles of the present invention and embodiment are expounded, and the explanation of above example is only intended to help to understand that this practicality is new
The method and its core concept of type.It should be pointed out that for those skilled in the art, not departing from this practicality
Under the premise of new principle, several improvements and modifications can be made to this utility model, these improvement and modification also fall into this
In the protection domain of utility model claims.
Claims (6)
1. a kind of unilateral bearing, including housing (1), inner sleeve (2) and several rolling elements (4), which is characterized in that the rolling element
(4) one end of the tapered distribution between inner sleeve (2) and housing (1), each rolling element (4) is circumferentially offset, and complete
The end of rolling element described in portion (4) the same side is uniformly distributed in the projection of end face.
2. unilateral bearing according to claim 1, which is characterized in that further include being set to the housing (1) and the inner sleeve
(2) retainer (3) between, the retainer (3) circumferentially arranged with the rolling element (4) one-to-one limiting section.
3. unilateral bearing according to claim 2, which is characterized in that the rolling element (4) is cylindrical roller.
4. unilateral bearing according to claim 3, which is characterized in that the outer surface of the rolling element (4) is equipped with wearing layer.
5. unilateral bearing according to claim 4, which is characterized in that between the rolling element (4) and the retainer (3)
Equipped with the lubricant for reducing abrasion.
6. unilateral bearing according to claim 5, which is characterized in that the end face of the housing (1) is equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820060517.3U CN207864418U (en) | 2018-01-15 | 2018-01-15 | Unilateral bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820060517.3U CN207864418U (en) | 2018-01-15 | 2018-01-15 | Unilateral bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864418U true CN207864418U (en) | 2018-09-14 |
Family
ID=63461735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820060517.3U Active CN207864418U (en) | 2018-01-15 | 2018-01-15 | Unilateral bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207864418U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035971A (en) * | 2018-01-15 | 2018-05-15 | 海南冠星电机有限公司 | Unilateral bearing |
| CN110985622A (en) * | 2019-12-31 | 2020-04-10 | 潍柴动力股份有限公司 | Tensioner |
-
2018
- 2018-01-15 CN CN201820060517.3U patent/CN207864418U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035971A (en) * | 2018-01-15 | 2018-05-15 | 海南冠星电机有限公司 | Unilateral bearing |
| CN110985622A (en) * | 2019-12-31 | 2020-04-10 | 潍柴动力股份有限公司 | Tensioner |
| CN110985622B (en) * | 2019-12-31 | 2021-10-29 | 潍柴动力股份有限公司 | Tensioner |
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| GR01 | Patent grant |