CN208474325U - Linear bearing - Google Patents
Linear bearing Download PDFInfo
- Publication number
- CN208474325U CN208474325U CN201821013563.4U CN201821013563U CN208474325U CN 208474325 U CN208474325 U CN 208474325U CN 201821013563 U CN201821013563 U CN 201821013563U CN 208474325 U CN208474325 U CN 208474325U
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- CN
- China
- Prior art keywords
- raceway
- path
- frid
- steel ball
- empty slot
- 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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Abstract
The utility model discloses a kind of linear bearings, including retainer, raceway board group part and several steel balls, raceway board group part includes cover board, shielding cover and raceway frid, raceway frid is arranged on retainer, steel ball track is symmetrically arranged on raceway frid, steel ball track includes the first by-path, second by-path and connection road, support frame is provided between first by-path and the second by-path, support frame is equipped with step surface, shielding cover lid is located on raceway frid, the empty slot for being clamped cover board is offered on shielding cover, empty slot setting is inserted on cover board top, insertion groove is formed in isolating frame corresponding position on lower part, cover board lower end is also extended with locating flange to step surface, locating flange is connect with insertion groove by arc resistance surface, arc resistance surface combines the accommodating cavity to form steel ball with the first by-path.Its is simple and reasonable, has good holding effect, while the contact area of steel ball and raceway increases, contact stress reduces, to extend the service life of bearing.
Description
Technical field
The utility model relates to technical field of bearings, especially a kind of linear bearing.
Background technique
Linear bearing is a kind of linear motion system with low cost production, is made for unlimited stroke and cylindrical shaft cooperation
With.But the production of linear bearing at present increases with the length of shell or cylindrical shaft, processing, installation error are also increasingly
Greatly, the running precision of entire mechanism, speed, service life can all decrease.Contact area of the existing steel ball in raceway simultaneously
It is smaller, the phenomenon that causing contact stress to increase in use, be easy to appear deformation sideslip, influence the service life of bearing.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of linear bearing, simple and reasonable, has to steel ball
There is good holding effect, while the contact area of steel ball and raceway increases, contact stress reduces, to extend making for bearing
Use the service life.
The utility model provides a kind of linear bearing, including retainer, raceway board group part and several steel balls, the raceway plate
Component includes cover board, shielding cover and raceway frid, and the raceway frid is arranged on retainer, symmetrically sets on the raceway frid
Two U-shaped steel ball tracks are equipped with, isolating frame is provided between two steel ball tracks, the steel ball filling steel ball track setting is described
Steel ball track includes that the first by-path, the second by-path and connection road, first by-path and the second by-path are set by the conducting of connection road
It sets, first by-path bottom surface is formed with contact groove, and support frame, the branch are provided between first by-path and the second by-path
Support is formed with step surface close to the first by-path side, and the shielding cover lid, which is located on raceway frid, to be formed on steel ball track the
The covering of two by-paths offers empty slot on the shielding cover, and the cover board is clamped with empty slot and covers to be located on raceway frid and formed
Covering to the first by-path, the cover board top is insertion section and is inserted into empty slot setting, and lower part is abutting portion, on the abutting portion
It is formed with insertion groove in isolating frame corresponding position, the cover board lower end is also extended with locating flange, the convex to step surface
Edge is connect with insertion groove by arc resistance surface, and the arc resistance surface combines the accommodating cavity to form steel ball with the first by-path.
The beneficial effect being arranged in this way is: using the above scheme, setting passes through support frame, arc resistance surface, isolation in this way
Frame and the combination of the first by-path are formed with the accommodating cavity of accommodating steel ball, and the arc resistance surface of this form is effectively increased to steel ball
Contact area becomes smaller so that contradicting stress, to substantially prolong the service life of bearing, is further arranged on isolating frame
Step surface, the step surface upper end are small ladder, and lower end is big ladder, after cover board assembling, limit the outside amount of movement of cover board
It is unlikely to excessive, while keeps the stabilization of entire accommodating cavity configuration, and cover board is limited by step surface, cover board has certain fortune
Dynamic space, also further increases the scope of activities of steel ball, convenient for the rolling slip and adjacent steel ball rolling cover of steel ball, protects
Demonstrate,prove the using effect of bearing.
The utility model is further arranged to the empty slot inner wall and is obliquely installed, the setting of cover board insertion section sidewall slope
And it is adapted with empty slot inner wall inclination angle, the insertion section and empty slot clearance fit.
The beneficial effect being arranged in this way is: using the above scheme, in this way setting so that, two sides of hole slot and cover board side
Wall clearance fit, cover board are placed in one, and radial direction can have certain amount of moving freely, and increase the scope of activities of steel ball, are convenient for
The rolling slip of steel ball and adjacent steel ball rolling cover, guarantee the using effect of bearing.
The utility model is further arranged to the insertion section length and is arranged less than empty slot length.
The beneficial effect being arranged in this way is: using the above scheme, while raceway plate length is less than the length of space groove, simultaneously
So that axial direction also has certain amount of moving freely.
The utility model is further arranged to be provided with bayonet on the retainer, the bayonet semicircular in shape setting, institute
It states and is provided with flange on raceway frid, the flange shape is adapted with bayonet, and the clearance fit of the flange and bayonet is formed
The fixation of raceway frid and retainer.
The beneficial effect being arranged in this way is: using the above scheme, using the cooperation of bayonet and flange, so that raceway frid is set
It sets on retainer, can be swung along the semicircle, track groove Board position carries out certain after linear bearing is installed
Rotation fine tuning, increases the controllability of equipment, improves the using effect of the bearing.
The utility model is further arranged to offer insertion mouth on the raceway frid, in insertion mouth on the shielding cover
Corresponding position is provided with fixture block, and the fixture block and insertion mouth clearance fit form the assembly of shielding cover and raceway frid.
The beneficial effect being arranged in this way is: using the above scheme, this structure is simple, is conducive to realize, be conveniently replaceable simultaneously,
Improve the using effect of product.
Detailed description of the invention
Fig. 1 is the explosive figure of the utility model embodiment；
Fig. 2 is the cross section view of the utility model embodiment；
Fig. 3 is the cross section view of the utility model embodiment cover plate.
Specific embodiment
A kind of embodiment of linear bearing, including retainer 1, raceway board group part and several steel are disclosed by Fig. 1 to Fig. 3
Ball 3, the raceway board group part include cover board 5, shielding cover 4 and raceway frid 2, and the raceway frid 2 is arranged on retainer 1,
It is symmetrically arranged with two U-shaped steel ball tracks on the raceway frid 2, isolating frame, the steel ball 3 are provided between two steel ball tracks
The setting of steel ball track is inserted, the steel ball track includes the first by-path 22, the second by-path 23 and connection road 24, first by-path
22 and second by-path 23 by the conducting setting of connection road 24,22 bottom surface of the first by-path is formed with contact groove, described first
Support frame 24 is provided between road 22 and the second by-path 23, support frame as described above 24 is formed with step surface close to 22 side of the first by-path
241, the shielding cover 4 covers the covering for being located at and being formed on raceway frid 2 to the second by-path 23 on steel ball track, the shielding cover 4
On offer empty slot 41, the cover board 5 is clamped with empty slot 41 and covers the screening for being located at and being formed on raceway frid 2 to the first by-path 22
Lid, 5 top of cover board is insertion section and is inserted into the setting of empty slot 41, and lower part is abutting portion, in isolating frame pair on the abutting portion
Answer position to be formed with insertion groove 51,41 inner wall of empty slot is obliquely installed, the 5 insertion section sidewall slope of cover board setting and with sky
41 inner wall inclination angle of slot is adapted, the insertion section and 41 clearance fit of empty slot, and the insertion section length is less than 41 length of empty slot and sets
It sets, 5 abutting portion of cover board is also extended with locating flange 2752, the locating flange 2752 and insertion groove 51 to step surface 241
It is connected by arc resistance surface 53, the arc resistance surface 53 combines the accommodating cavity to form steel ball 3 with the first by-path 22.The guarantor
It holds and is provided with bayonet 11 on frame 1,11 semicircular in shape of bayonet is arranged, and is provided with flange 27 on the raceway frid 2, described convex
27 shape of edge is adapted with bayonet 11, the clearance fit formation raceway frid 2 of the flange 27 and bayonet 11 and consolidating for retainer 1
It is fixed.It is offered on the raceway frid 2 and is embedded in mouth 26, insertion 26 corresponding position of mouth is provided with fixture block 42 on the shielding cover 4,
The fixture block 42 forms the assembly of shielding cover 4 and raceway frid 2 with insertion 26 clearance fit of mouth.
The above embodiments are only the preferred embodiment of the utility model, and the right of the utility model cannot be limited with this
Range, therefore, equivalent variations made according to the patent scope of the utility model, such as using similar technique, similar structures
Equivalent product is still fallen within the scope of the utility model.
Claims (5)
1. a kind of linear bearing, including retainer, raceway board group part and several steel balls, the raceway board group part includes cover board, hides
Door and raceway frid, the raceway frid are arranged on retainer, and two U-shaped steel balls are symmetrically arranged on the raceway frid
Track is provided with isolating frame, the steel ball filling steel ball track setting, it is characterised in that: the steel ball between two steel ball tracks
Track includes that the first by-path, the second by-path and connection road, first by-path and the second by-path pass through the conducting setting of connection road, institute
It states the first by-path bottom surface and is formed with contact groove, be provided with support frame, support frame as described above between first by-path and the second by-path
It is formed with step surface close to the first by-path side, the shielding cover lid is located on raceway frid and is formed to second on steel ball track
The covering in road, offers empty slot on the shielding cover, and the cover board and empty slot, which be clampeds and cover, is located on raceway frid formation to the
The covering of one by-path, the cover board top be insertion section and be inserted into empty slot setting, lower part is abutting portion, on the abutting portion in every
Be formed with insertion groove from frame corresponding position, the cover board lower end is also extended with locating flange to step surface, the locating flange with
Insertion groove is connected by arc resistance surface, and the arc resistance surface combines the accommodating cavity to form steel ball with the first by-path.
2. linear bearing according to claim 1, it is characterised in that: the empty slot inner wall is obliquely installed, and the cover board is inserted
Enter portion's sidewall slope to be arranged and be adapted with empty slot inner wall inclination angle, the insertion section and empty slot clearance fit.
3. linear bearing according to claim 2, it is characterised in that: the insertion section length is arranged less than empty slot length.
4. linear bearing according to claim 1 or 2 or 3, it is characterised in that: be provided with bayonet, institute on the retainer
The setting of bayonet semicircular in shape is stated, is provided with flange on the raceway frid, the flange shape is adapted with bayonet, the flange
The fixation of raceway frid and retainer is formed with the clearance fit of bayonet.
5. linear bearing according to claim 1, it is characterised in that: insertion mouth is offered on the raceway frid, it is described
Insertion mouth corresponding position is provided with fixture block on shielding cover, the fixture block and insertion mouth clearance fit form shielding cover and track groove
The assembly of plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821013563.4U CN208474325U (en) | 2018-06-28 | 2018-06-28 | Linear bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821013563.4U CN208474325U (en) | 2018-06-28 | 2018-06-28 | Linear bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208474325U true CN208474325U (en) | 2019-02-05 |
Family
ID=65211884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821013563.4U Active CN208474325U (en) | 2018-06-28 | 2018-06-28 | Linear bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208474325U (en) |
-
2018
- 2018-06-28 CN CN201821013563.4U patent/CN208474325U/en active Active
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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 Binhai five road 515, Wenzhou economic and Technological Development Zone, Zhejiang Patentee after: C&U Co.,Ltd. Patentee after: SHANGHAI C&U GROUP Co.,Ltd. Patentee after: SHANGHAI C&U DOUBLE ROW BEARING Co.,Ltd. Address before: 325000 Binhai five road 515, Wenzhou economic and Technological Development Zone, Zhejiang Patentee before: C & U Group Ltd. Patentee before: SHANGHAI C&U GROUP Co.,Ltd. Patentee before: SHANGHAI C&U DOUBLE ROW BEARING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |