CN204025335U - Linear bearing assembly - Google Patents
Linear bearing assembly Download PDFInfo
- Publication number
- CN204025335U CN204025335U CN201420307681.1U CN201420307681U CN204025335U CN 204025335 U CN204025335 U CN 204025335U CN 201420307681 U CN201420307681 U CN 201420307681U CN 204025335 U CN204025335 U CN 204025335U
- Authority
- CN
- China
- Prior art keywords
- axle
- retainer
- outer ring
- ball
- linear 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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- Bearings For Parts Moving Linearly (AREA)
Abstract
The utility model discloses a kind of linear bearing assembly, it comprises: a) bearing outer ring, and it has the shape of hollow cylinder, and has the internal diameter of the first diameter; B) be located in the axle in described bearing outer ring, described axle has the external diameter of the Second bobbin diameter that is less than described the first diameter; C) be arranged on retainer and the ball around described axle between described axle and described bearing outer ring, described ball is arranged on described retainer, and with the inner side of described bearing outer ring and the outer side contacts of described axle; Wherein, on described axle, be provided with flange that at least one place extends radially outwardly with the bracket as described retainer and ball.The connection that this linear bearing assembly can be realized between the movement parts that need relatively rotate and need relative sliding is moved smoothly with guarantee.
Description
Technical field
The utility model relates to technical field of bearings, and more specifically, the utility model relates to a kind of linear bearing assembly.
Background technique
Use at needs and relatively rotate and need the linear bearing between two parts of relative sliding to know.Conventional linear bearing comprises bearing outer ring, retainer and ball.Retainer and ball are generally entrenched in bearing outer ring inner side, or are remained in described roller bearing outer ring by the contraction flow region that two ends, roller bearing outer ring extend radially inwardly (or being attached at two ends, roller bearing outer ring).Designer conventionally for different shaft diameters, selects or customizes suitable linear bearing from Bearing Factory in the time of deisgn product.Therefore simple in structure, standardization of products advantages of higher that traditional linear bearing has.But traditional linear bearing at retainer and ball against the contraction flow region of bearing outer ring and while expecting that axle continues to this contraction flow region direction motion, may cause axle to have some setbacks with respect to the motion of bearing to the power of retainer and ball due to contraction flow region.
Particularly, please refer to Fig. 1, it shows a kind of linear bearing of routine, and it comprises bearing outer ring 2, and bearing outer ring 2 extends radially inwardly to form contraction flow region 5,6 at its two ends place.Axle 1 is located in described bearing outer ring 2 and retainer and ball 3 are arranged between axle 1 and bearing outer ring 2 around axle 1.In use, if run into the situation shown in Fig. 1, be that retainer and ball 3 move to against the situation of contraction flow region 6 with axle 1, when now axle 1 continues to move downward, retainer and ball 3 are because the power that is subject to contraction flow region 6 cannot further move downward, thereby cause axle 1 to have to depart from retainer and ball 3 and produce relative movement, at this moment may cause that axle 1 continues to move downward have some setbacks or because extra power is blocked.
Model utility content
The purpose of this utility model be to provide a kind of aforementioned in particular cases still can retainer shaft and bearing outer ring between the linear bearing assembly that slides smoothly, thereby overcome technical problem mentioned above, make the relative sliding between movement parts more smooth and easy.
The utility model provides the linear bearing assembly of innovation to realize above-mentioned technical purpose, particularly, according to one side of the present utility model, provides a kind of linear bearing assembly, and it comprises:
Bearing outer ring, it has the shape of hollow cylinder, and has the internal diameter of the first diameter;
Be located in the axle in described bearing outer ring, described axle has the external diameter of the Second bobbin diameter that is less than described the first diameter;
Being arranged between described axle and described bearing outer ring is retainer and the ball around described axle, and described ball is arranged on described retainer, and with the inner side of described bearing outer ring and the outer side contacts of described axle;
Wherein, on described axle, be provided with flange that at least one place extends radially outwardly with the bracket as described retainer and ball.
Alternatively, be provided with the flange that a place extends radially outwardly on described axle, described outer ring is provided with the contraction flow region extending radially inwardly, and described retainer and ball are arranged between described flange and described contraction flow region.
Alternatively, in use, described flange is arranged on described contraction flow region below.
Alternatively, in use, described flange is arranged on described contraction flow region top.
Alternatively, described contraction flow region has the internal diameter that approaches described Second bobbin diameter.
Alternatively, described contraction flow region is arranged on the end of described bearing outer ring.
Alternatively, be provided with the flange that two places extend radially outwardly on described axle, described retainer and ball are arranged between described two place's flanges.
Alternatively, described flange extends radially outwardly to and approaches described the first diameter.
Usefulness of the present utility model is, a kind of new linear bearing design concept is proposed, no longer using linear bearing as standard piece or general part, but bearing outer ring, retainer and ball and axle are regarded a whole assembly as, as a general line bearing unit, replace contraction flow region on outer ring using the bracket as retainer and ball with being arranged on flange on described axle, arrange lugs position according to actual conditions, thereby use retainer and ball not to be subject to stopping of bracket with axle motion, slip smoothly and rotation between movement parts are provided thus.
Brief description of the drawings
With reference to accompanying drawing, disclosure of the present utility model will be easier to understand.Those skilled in the art hold intelligible: these accompanying drawings are the object for illustrating only, and is not intended to protection domain of the present utility model to be construed as limiting.In addition, similarly digital in order to parts like representation class, wherein in figure:
Fig. 1 is a kind of linear bearing of routine and the longitudinal section that is located in axle wherein;
Fig. 2 to 4 is respectively according to the longitudinal section of three kinds of linear bearing assemblies of the present utility model;
Fig. 5 to 10 is the use principle figure in each situation according to three kinds of linear bearing assemblies of the present utility model.
embodiment:
Easily understand, according to the technical solution of the utility model, do not changing under the utility model connotation, one of ordinary skill in the art can propose various structures mode and the implementation that can mutually replace.Therefore, below embodiment and accompanying drawing be only the exemplary illustration to the technical solution of the utility model, and should not be considered as of the present utility model all or be considered as restriction or the restriction to technical solutions of the utility model.
The orientation terms such as the up, down, left, right, before and after mentioned in this manual or may mention, front, the back side, top, bottom are to define with respect to the structure shown in each accompanying drawing, they are relative concepts, therefore likely can correspondingly change according to its diverse location of living in, different use state.So, also these or other orientation term should be interpreted as to restricted term.
In addition, need be clear and definite, (comprise in claim) that using term " to approach " represents to exist the micro-gap that allows relative sliding between the two herein, generally speaking, between the 1%-10% that this gap is small diameter.
Fig. 2 to 4 shows respectively according to three of linear bearing assembly of the present utility model embodiments, is called the linear bearing assembly of type a, type b and type c.Than traditional line bearing as shown in Figure 1, linear bearing assembly of the present utility model replaces one or two in the contraction flow region that is arranged on two ends, outer ring with the one or more flanges that extend radially outwardly on axle dexterously.Adapt to different application by the flexible arrangement of flange.Particularly, a kind of linear bearing assembly, it comprises: a) bearing outer ring 12,22,32, it has the shape of hollow cylinder, and has the internal diameter of the first diameter; B) be located in the axle 11,21,31 in described bearing outer ring, described axle has the external diameter of the Second bobbin diameter that is less than described the first diameter; C) be arranged on retainer and the ball 13,23,33 around described axle between described axle and described bearing outer ring, described ball is arranged on described retainer, and with the inner side of described bearing outer ring and the outer side contacts of described axle; Wherein, on described axle, be provided with flange 112,211,212,311 that at least one place extends radially outwardly with the bracket as described retainer and ball.As the linear bearing assembly of type a, on described axle, be provided with the flange 112 that a place extends radially outwardly, described outer ring 12 is provided with the contraction flow region 121 extending radially inwardly, described retainer and ball 13 are arranged between described flange 112 and described contraction flow region 121, in use, described flange 112 is arranged on described contraction flow region 121 belows.As the linear bearing assembly of type c, on described axle 31, be provided with the flange 311 that a place extends radially outwardly, described outer ring is provided with the contraction flow region 322 extending radially inwardly, described retainer and ball 33 are arranged between described flange 311 and described contraction flow region 322, and described flange 311 is arranged on described contraction flow region 322 tops.As the linear bearing assembly of type b, on described axle, be provided with the flange 211,212 that two places extend radially outwardly, described retainer and ball are arranged between described two place's flanges 211,212.Shown in embodiment a and b in, described contraction flow region has the internal diameter that approaches described Second bobbin diameter, but also can use the contraction flow region of other diameters between the first diameter and Second bobbin diameter.Shown in embodiment a, b, c in, described flange extends radially outwardly to and approaches described the first diameter, but also can use the flange of other diameters between the first diameter and Second bobbin diameter.
With reference now to Fig. 5 to 10,, it shows in each situation, and the linear bearing assembly of each type of How to choose is to make the relative movement of movement parts more smooth and easy.Particularly:
If retainer under external force, move to (lower surface is against flange) bottom as shown in Figure 5 or Figure 6, now, axle is downward with respect to the motion line of outer ring, split type linear bearing can adopt the linear bearing assembly of type a mentioned above and type b, the lower part that is axle has flange using the bracket as retainer and ball, as illustrated respectively in Fig. 5 and Fig. 6, in the time that axle further moves downward as shown by arrows, the flange of the linear bearing of type a and type b also moves downward, and can not apply resistance to retainer and ball.
If retainer under external force, move to as shown in Figure 7 bottom, now, axle is upwards with respect to the motion line of outer ring, and split type linear bearing can adopt the linear bearing assembly of type c mentioned above, as shown in Figure 7, between retainer and ball and flange, exist by the space shown in four-headed arrow, for moving up of retainer and ball, therefore in the time that axle moves upward as shown by the arrows in Figure 7, do not have obstruction.
If retainer under external force, move to the top (upper surface is against flange) as shown in Fig. 8 or Fig. 9, now, axle is upwards with respect to the motion line of outer ring, split type linear bearing can adopt the linear bearing assembly of type b mentioned above and type c, the upper part that is axle has flange using the bracket as retainer and ball, as illustrated respectively in Fig. 8 and Fig. 9, in the time that axle further moves upward as shown by arrows, the flange of the linear bearing of type b and type c also moves upward, and can not apply resistance to retainer and ball.
If retainer under external force, move to the top as shown in figure 10, now, axle is that split type linear bearing can adopt the linear bearing assembly of type a mentioned above, as shown in figure 10 downwards with respect to the motion line of outer ring, between retainer and ball and flange, exist by the space shown in four-headed arrow, for moving down of retainer and ball, therefore in the time that axle moves downward as shown by the arrows in Figure 10, do not have obstruction.
By the linear bearing assembly of the above-described three types of choice for use, in the time that axle and bearing outer ring relatively move, no matter retainer moves together with axle with ball, or retainer moves together with bearing outer ring with ball, having can be to retainer and ball 3 mobile space, do not have part and apply external force to retainer and ball, ensure that retainer and ball move smooth and easy, thereby it is smooth and easy to ensure that bearing moves.
Specific embodiment described above, only in order more clearly to describe principle of the present utility model, is wherein specialized all parts and principle of the present utility model is easier to understand.In the situation that not departing from scope of the present utility model, those skilled in the art can easily carry out various amendments to the utility model.Therefore should be understood that, scope of the present utility model should not limited by above specific embodiment.
Claims (7)
1. a linear bearing assembly, it comprises:
Bearing outer ring (12,22,32), it has the shape of hollow cylinder, and has the internal diameter of the first diameter;
Be located in the axle (11,21,31) in described bearing outer ring (12,22,32), described axle (11,21,31) has the external diameter of the Second bobbin diameter that is less than described the first diameter;
Be arranged on retainer and ball (13,23,33) around described axle (11,21,31) between described axle (11,21,31) and described bearing outer ring (12,22,32), described ball is arranged on described retainer, and with the inner side of described bearing outer ring (12,22,32) and the outer side contacts of described axle (11,21,31);
It is characterized in that, on described axle (11,21,31), be provided with flange (112,211,212,311) that at least one place extends radially outwardly with the bracket as described retainer and ball (13,23,33).
2. linear bearing assembly according to claim 1, it is characterized in that, on described axle, be provided with the flange (112,311) that a place extends radially outwardly, described outer ring is provided with the contraction flow region (121,322) extending radially inwardly, and described retainer and ball (13,33) are arranged between described flange and described contraction flow region.
3. linear bearing assembly according to claim 2, is characterized in that, in use, described flange (112) is arranged on described contraction flow region (121) below.
4. linear bearing assembly according to claim 2, is characterized in that, in use, described flange (311) is arranged on described contraction flow region (322) top.
5. linear bearing assembly according to claim 2, is characterized in that, described contraction flow region (121,322) has the internal diameter that approaches described Second bobbin diameter.
6. linear bearing assembly according to claim 1, it is characterized in that, on described axle, be provided with the flange (211,212) that two places extend radially outwardly, described retainer and ball (23) are arranged between described two place's flanges (211,212).
7. according to the linear bearing assembly described in any one in claim 1-6, it is characterized in that, described flange (112,211,212,311) extends radially outwardly to and approaches described the first diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420307681.1U CN204025335U (en) | 2014-06-11 | 2014-06-11 | Linear bearing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420307681.1U CN204025335U (en) | 2014-06-11 | 2014-06-11 | Linear bearing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025335U true CN204025335U (en) | 2014-12-17 |
Family
ID=52065205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420307681.1U Expired - Fee Related CN204025335U (en) | 2014-06-11 | 2014-06-11 | Linear bearing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025335U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402355A (en) * | 2015-12-08 | 2016-03-16 | 四川大学 | Automobile differential with any tooth difference between outer cam and shock-wave rolling block |
| CN105465320A (en) * | 2015-12-28 | 2016-04-06 | 四川大学 | Double-phase outer cam automobile differential with rolling block driven by inner gear |
| CN110131310A (en) * | 2019-05-22 | 2019-08-16 | 南京工程学院 | A kind of temperature variation resistant low abrasion self-lubricating linear bearing |
| CN114427570A (en) * | 2022-01-14 | 2022-05-03 | 北京轩宇智能科技有限公司 | Linear bearing and telescopic device |
-
2014
- 2014-06-11 CN CN201420307681.1U patent/CN204025335U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402355A (en) * | 2015-12-08 | 2016-03-16 | 四川大学 | Automobile differential with any tooth difference between outer cam and shock-wave rolling block |
| CN105465320A (en) * | 2015-12-28 | 2016-04-06 | 四川大学 | Double-phase outer cam automobile differential with rolling block driven by inner gear |
| CN110131310A (en) * | 2019-05-22 | 2019-08-16 | 南京工程学院 | A kind of temperature variation resistant low abrasion self-lubricating linear bearing |
| CN114427570A (en) * | 2022-01-14 | 2022-05-03 | 北京轩宇智能科技有限公司 | Linear bearing and telescopic device |
| CN114427570B (en) * | 2022-01-14 | 2024-02-06 | 北京轩宇智能科技有限公司 | Linear bearing and telescopic device |
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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: 20141217 |