CN207454552U - A kind of linear bearing - Google Patents
A kind of linear bearing Download PDFInfo
- Publication number
- CN207454552U CN207454552U CN201721471057.5U CN201721471057U CN207454552U CN 207454552 U CN207454552 U CN 207454552U CN 201721471057 U CN201721471057 U CN 201721471057U CN 207454552 U CN207454552 U CN 207454552U
- Authority
- CN
- China
- Prior art keywords
- retainer
- outer ring
- groove
- steel 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.)
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- Bearings For Parts Moving Linearly (AREA)
Abstract
The utility model discloses a kind of linear bearings,Including outer ring,Retainer and steel ball,The retainer is located in outer ring,And offer the elongated slot being packed into for multiple steel balls,Tangent abut each is respectively formed between steel ball and outer ring,The retainer correspondence is both provided with the block separated between each two steel ball in same elongated slot,The axial end portion of the outer ring is provided with the elongated end for extending radially inwardly and being abutted with the axial end face formation of retainer,The axially inner side of the elongated end is further opened with outer ring groove,It is corresponding on the axial end face of the retainer to offer the retainer groove being connected with the outer ring groove,Buffer sealing device is provided between the outer ring groove and retainer groove,By using said structure,The utility model provides a kind of more reasonable structure,Run the preferable linear bearing of more smooth and sealing performance.
Description
Technical field
The utility model is related to technical field of bearings, and in particular to a kind of linear bearing.
Background technology
Linear bearing has generally comprised outer ring, retainer and steel ball, and the retainer is located in outer ring, and offers confession
The elongated slot that multiple steel balls are packed into, but since multiple steel balls in the prior art do not separate between each other in elongated slot, but
It contacts directly, therefore when bearing is run, phase mutual friction can occur between steel ball and steel ball and cause worn steel ball, so as to not only
Greatly shorten the service life of bearing, and once one of steel ball is obstructed and stops operating, and will result directly in same elongated slot
All steel balls all no longer roll, and then influence linear bearing normal operation.Meanwhile existing linear bearing is due to its outer ring
Bearing inner is easily entered without correspondingly sealing structure, therefore poor sealing performance, foreign matter between retainer, so as to
Influence the normal operation of bearing.
The content of the invention
In view of the deficiencies of the prior art, the utility model provides a kind of more reasonable structure, runs more smooth and leakproofness
It can preferable linear bearing.
To achieve the above object, the utility model provides a kind of linear bearing, including outer ring, retainer and steel ball, institute
The retainer stated is located in outer ring, and offers the elongated slot being packed into for multiple steel balls, and phase is respectively formed between each steel ball and outer ring
Abutting is cut, the retainer correspondence is both provided with the block separated, institute between each two steel ball in same elongated slot
The axial end portion for stating outer ring is provided with the elongated end for extending radially inwardly and being abutted with the axial end face formation of retainer, described to prolong
The axially inner side for stretching end is further opened with outer ring groove, and correspondence offers and the outer ring groove on the axial end face of the retainer
The retainer groove being connected is provided with buffer sealing device, the buffering between the outer ring groove and retainer groove
Sealing device includes spring and U-shaped circle, and for the opening of U-shaped circle towards the bottom surface of retainer groove, the spring is located at U-shaped circle
It is interior, and one end of spring and the bottom surface of retainer groove abut against, the other end of spring is connected on U-shaped circle, and forces the U
Shape circle is resisted against on the bottom surface of outer ring groove.
The beneficial effects of the utility model are：Using the above structure, firstly, since the retainer correspondence is in same elongated slot
The block separated is both provided between interior each two steel ball, therefore, is not connect mutually between steel ball and steel ball independently of each other
It touches, so as to not only effectively prevent steel ball and the mutual abrasion of steel ball, but also stopping turns even if one of steel ball is obstructed
The dynamic normal rotation that will not influence other steel balls, more reasonable structure, behave it is more smooth.Secondly, it is recessed in the outer ring
Buffer sealing device between slot and retainer groove is set, not only preferably outer ring and retainer can link together, and protect
Good sealing is held, and when play occurs for bearing, moreover it is possible to play effectively cushioning effect.
The utility model, which can be further arranged to the U-shaped circle, to be included U-shaped skeleton and is coated on U-shaped skeleton outer surface
Rubber layer is additionally provided with the seal washer abutted with rubber layer composition on the bottom surface of the outer ring groove.In this way, not
Only so that the U-shaped circle has certain rigid, and sealing and cushion performance are also more preferable.
The utility model may further be provided to be additionally provided with just between the inner ring surface of outer ring elongated end and outer ring groove
In the intermediate incline that buffer sealing device is packed into.By setting intermediate incline, buffer sealing device is contributed to preferably to assemble.
The utility model may further be provided to be integrally formed between the block and retainer and set.In this way,
More reasonable structure, processing are also more convenient.
Description of the drawings
Fig. 1 is the structure sectional view of the utility model；
Fig. 2 is the A portions enlarged drawing of Fig. 1.
Specific embodiment
A kind of linear bearing is given as shown in Figure 1, 2, including outer ring 1, retainer 2 and steel ball 3, the retainer 2
In outer ring 1, and offer for multiple steel balls 3 be packed into elongated slot, be respectively formed between each steel ball 3 and outer ring 1 it is tangent abut,
The retainer 2 is both provided with the block 4 separated, the gear between corresponding to each two steel ball 3 in same elongated slot
It is integrally formed and sets between block 4 and retainer 2.The axial end portion of the outer ring 1 be provided with extend radially inwardly and with retainer 2
Axial end face form the elongated end 11 abutted, the axially inner side of the elongated end 11 is further opened with outer ring groove 12, the guarantor
Hold the retainer groove 21 for being corresponded on the axial end face of frame 2 and offering and being connected with the outer ring groove 12, the outer ring groove
Buffer sealing device 5 is provided between 12 and retainer groove 21, the buffer sealing device 5 includes spring 51 and U-shaped
Circle, the opening of U-shaped circle is towards the bottom surface 211 of retainer groove 21, and the spring 51 is located in U-shaped circle, and one end of spring 51
Abutted against with the bottom surface 211 of retainer groove 21, the other end of spring 51 is connected on U-shaped circle, and force the U-shaped circle against
On the bottom surface of outer ring groove 12 121.The U-shaped circle includes U-shaped skeleton 52 and the rubber for being coated on 52 outer surface of U-shaped skeleton
Layer 53 is additionally provided with the seal washer 54 abutted with the rubber layer 53 composition on the bottom surface 121 of the outer ring groove 12.Outer ring
The intermediate incline 13 being packed into convenient for buffer sealing device 5 is additionally provided between the inner ring surface of elongated end 11 and outer ring groove 12.It is logical
It crosses using the above structure, the utility model provides a kind of more reasonable structure, the operation preferable straight line of more smooth and sealing performance
Bearing.
Claims (4)
1. a kind of linear bearing, including outer ring, retainer and steel ball, the retainer is located in outer ring, and offers for more
The elongated slot that a steel ball is packed into, is respectively formed tangent abut between each steel ball and outer ring, it is characterised in that：The retainer correspondence exists
The block separated is both provided between each two steel ball in same elongated slot, the axial end portion of the outer ring is provided with footpath
To the elongated end for extending internally and being abutted with the axial end face formation of retainer, the axially inner side of the elongated end is further opened with outside
Groove is enclosed, the retainer groove for offering and being connected with the outer ring groove is corresponded on the axial end face of the retainer, it is described
Buffer sealing device is provided between outer ring groove and retainer groove, the buffer sealing device includes spring and U-shaped
Circle, the opening of U-shaped circle is towards the bottom surface of retainer groove, and the spring is located in U-shaped circle, and one end of spring and retainer are recessed
The bottom surface of slot abuts against, and the other end of spring is connected on U-shaped circle, and the U-shaped circle is forced to be resisted against the bottom surface of outer ring groove
On.
2. a kind of linear bearing according to claim 1, it is characterised in that：The U-shaped circle includes U-shaped skeleton and cladding
Rubber layer in U-shaped skeleton outer surface, be additionally provided on the bottom surface of the outer ring groove abutted with rubber layer composition it is close
Seal washer.
3. a kind of linear bearing according to claim 1 or 2, it is characterised in that：The inner ring surface of outer ring elongated end and outer ring
The intermediate incline being packed into convenient for buffer sealing device is additionally provided between groove.
4. a kind of linear bearing according to claim 1, it is characterised in that：It is integrally formed between the block and retainer
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721471057.5U CN207454552U (en) | 2017-11-07 | 2017-11-07 | A kind of linear bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721471057.5U CN207454552U (en) | 2017-11-07 | 2017-11-07 | A kind of linear bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454552U true CN207454552U (en) | 2018-06-05 |
Family
ID=62254036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721471057.5U Active CN207454552U (en) | 2017-11-07 | 2017-11-07 | A kind of linear bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236854A (en) * | 2018-11-09 | 2019-01-18 | 瓦房店欧德轴承制造有限公司 | High-speed paper machine bearing |
-
2017
- 2017-11-07 CN CN201721471057.5U patent/CN207454552U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236854A (en) * | 2018-11-09 | 2019-01-18 | 瓦房店欧德轴承制造有限公司 | High-speed paper machine bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325000 Wenzhou economic and Technological Development Zone, Wenzhou, Wenzhou, Zhejiang Province, No. 515, seashore Patentee after: C&U Co.,Ltd. Patentee after: SHANGHAI C&U GROUP Co.,Ltd. Address before: 325000 Wenzhou economic and Technological Development Zone, Wenzhou, Wenzhou, Zhejiang Province, No. 515, seashore Patentee before: C & U Group Ltd. Patentee before: SHANGHAI C&U GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |