CN206929220U - A kind of screw mandrel bearing for lathe - Google Patents
A kind of screw mandrel bearing for lathe Download PDFInfo
- Publication number
- CN206929220U CN206929220U CN201720638310.5U CN201720638310U CN206929220U CN 206929220 U CN206929220 U CN 206929220U CN 201720638310 U CN201720638310 U CN 201720638310U CN 206929220 U CN206929220 U CN 206929220U
- Authority
- CN
- China
- Prior art keywords
- arc groove
- groove
- semicircle draw
- retainer
- tapped
- 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
Links
- 238000010276 construction Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a kind of screw mandrel bearing for lathe.Wherein：A circle ring groove is provided with the outer wall of described bearing inner race, the cross section of described ring groove is rectangle, second arc groove of circle is provided with the bottom interior wall of above-mentioned ring groove, what two semicircle draw runners slided is arranged in ring groove, second arc groove is provided with the indent side of each above-mentioned semicircle draw runner, a big retainer is provided between above-mentioned the second arc groove of two semicircle draw runners and the second arc groove of bearing inner race, the utility model has the advantage of：It is simple in construction, it is easy to spread.
Description
Technical field
A kind of bearing is the utility model is related to, more particularly to a kind of screw mandrel bearing for lathe.
Background technology
Traditional screw mandrel bearing inner ring of bearing when by axial impact easily misplaces with outer ring so that bearing
Service life is affected, and not easy care with dismounting, once damage, just can only integral replacing, improve maintenance cost.
The content of the invention
The utility model is in order to make up the deficiencies in the prior art, there is provided a kind of screw mandrel bearing for lathe so that reach
Influenceed to axial impact is mitigated, reduce axial direction and radial frictional force, reduce the purpose of maintenance cost.
In order to solve the above problems, the utility model is achieved through the following technical solutions：
A kind of screw mandrel bearing for lathe, including：Small retainer, small ball, big ball, big retainer, bearing inner race,
Semicircle draw runner, annular retainer plate, bolt, counterbore, tapped through hole, tapped blind hole, the first arc groove, the second arc groove, circle
Ring groove；Wherein：
A circle ring groove is provided with the outer wall of described bearing inner race, the cross section of described ring groove is square
Shape, second arc groove of circle is provided with the bottom interior wall of above-mentioned ring groove, and what two semicircle draw runners slided is arranged on
In ring groove, second arc groove is provided with the indent side of each above-mentioned semicircle draw runner, above-mentioned two
A big retainer is provided between second arc groove of individual semicircle draw runner and the second arc groove of bearing inner race, it is above-mentioned
The big ball of activity is provided with big retainer, is provided with and is uniformly distributed on the evagination side of each described semicircle draw runner
Tapped blind hole；Equally distributed tapped through hole is provided with described annular retainer plate, each described tapped through hole leans on
One end of near-ring shape retainer plate outer face is provided with a counterbore；Described screw bolt passes counterbore, tapped through hole and one
Individual tapped blind hole is connected；
A kind of screw mandrel bearing for lathe, wherein：The upper inside walls of described ring groove on the inwall of downside with distinguishing
It is provided with first arc groove of circle；One is respectively arranged with the upper surface and lower surface of each described semicircle draw runner
One arc groove, the first arc groove of the respective both sides of described two semicircle draw runners and first of both sides above and below ring groove
A small retainer is respectively provided between arc groove；Be provided with the small retainer of each above-mentioned can roll it is small
Ball.
The utility model has the advantage of：It is simple in construction, it is easy to maintain, by setting semicircle draw runner, annular retainer plate to make
It is easily disassembled to obtain bearing, reduces maintenance cost, two small retainers of setting effectively alleviate axial frictional force.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is the structural representation of the utility model semicircle draw runner；
Brief description of the drawings：Small retainer 1, small ball 2, big ball 3, big retainer 4, bearing inner race 5, semicircle draw runner 6, annular
Retainer plate 7, bolt 8, counterbore 9, tapped through hole 14, tapped blind hole 10, the first arc groove 11, the second arc groove 12, annulus
Groove 13.
Embodiment
Embodiment 1, a kind of screw mandrel bearing for lathe, including：Small retainer 1, small ball 2, big ball 3, big holding
Frame 4, bearing inner race 5, semicircle draw runner 6, annular retainer plate 7, bolt 8, counterbore 9, tapped through hole 14, tapped blind hole 10, first are justified
Arc fluting 11, the second arc groove 12, ring groove 13；Wherein：
A circle ring groove 13, the cross section of described ring groove 13 are provided with the outer wall of described bearing inner race 5
For rectangle, second arc groove of circle 12 is provided with the bottom interior wall of above-mentioned ring groove 13, two semicircle draw runners 6 slide
Be arranged in ring groove 13, it is recessed that second circular arc is provided with the indent side of each above-mentioned semicircle draw runner 6
Groove 12, it is provided between the second arc groove 12 of above-mentioned two semicircle draw runners 6 and the second arc groove 12 of bearing inner race 5
One big retainer 4, is provided with the big ball 3 of activity on above-mentioned big retainer 4, each described semicircle draw runner 6 it is outer
Equally distributed tapped blind hole 10 is provided with convex side；Equally distributed screw thread is provided with described annular retainer plate 7
Through hole 14, each described tapped through hole 14 are provided with a counterbore 9 close to one end of the annular outer face of retainer plate 7；Institute
The bolt 8 stated sequentially passes through counterbore 9, tapped through hole 14 is connected with a tapped blind hole 10；
Embodiment 2, a kind of screw mandrel bearing for lathe, wherein：The upper inside walls of described ring groove 13 and downside
First arc groove of circle 11 is respectively arranged with inwall；Divide on the upper surface and lower surface of each described semicircle draw runner 6
First arc groove 11, the first arc groove 11 and the circle of the respective both sides of described two semicircle draw runners 6 are not provided with
Ring groove is respectively provided with one small retainer 1 between the first arc groove 11 of both sides about 13；Each above-mentioned is small
The small ball 2 that can be rolled is provided with retainer 1.Remaining is the same as embodiment 1.
Operation principle：The present apparatus can pass through the small rolling on two small retainer 1 when by axial impact loading
Pearl 2 mitigates friction, while the semicircle draw runner 6 set is easily installed and dismantled, changes with annular retainer plate 7, and the annular of setting is consolidated
Surely circle 7 causes what two semicircle draw runners fixed to connect into a full circle, ring groove 13, semicircle draw runner 6 and annular retainer plate 7
Combination causes gap to become tortuous, and dust is not easily accessed in the second arc groove 12.
Claims (2)
1. a kind of screw mandrel bearing for lathe, including：Small retainer, small ball, big ball, big retainer, bearing inner race, half
Round and smooth bar, annular retainer plate, bolt, counterbore, tapped through hole, tapped blind hole, the first arc groove, the second arc groove, annulus
Groove；It is characterized in that：
A circle ring groove is provided with the outer wall of described bearing inner race, the cross section of described ring groove is rectangle, on
Second arc groove of circle is provided with the bottom interior wall for the ring groove stated, it is recessed that what two semicircle draw runners slided is arranged on annulus
In groove, second arc groove, above-mentioned two semicircles are provided with the indent side of each above-mentioned semicircle draw runner
A big retainer, above-mentioned big holding are provided between second arc groove of draw runner and the second arc groove of bearing inner race
The big ball of activity is provided with frame, equally distributed screw thread is provided with the evagination side of each described semicircle draw runner
Blind hole；Equally distributed tapped through hole is provided with described annular retainer plate, each described tapped through hole is close to annular
One end of retainer plate outer face is provided with a counterbore；Described screw bolt passes counterbore, tapped through hole and a screw thread
Blind hole is connected.
A kind of 2. screw mandrel bearing for lathe according to claim 1, it is characterised in that：Described ring groove it is upper
Side inwall on the inwall of downside with being respectively arranged with first arc groove of circle；The upper surface of each described semicircle draw runner is with
Be respectively arranged with first arc groove on end face, the first arc groove of the respective both sides of described two semicircle draw runners with
Above and below ring groove a small retainer is respectively provided between the first arc groove of both sides；The small holding of each above-mentioned
The small ball that can be rolled is provided with frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720638310.5U CN206929220U (en) | 2017-06-05 | 2017-06-05 | A kind of screw mandrel bearing for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720638310.5U CN206929220U (en) | 2017-06-05 | 2017-06-05 | A kind of screw mandrel bearing for lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206929220U true CN206929220U (en) | 2018-01-26 |
Family
ID=61344745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720638310.5U Expired - Fee Related CN206929220U (en) | 2017-06-05 | 2017-06-05 | A kind of screw mandrel bearing for lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206929220U (en) |
-
2017
- 2017-06-05 CN CN201720638310.5U patent/CN206929220U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180126 Termination date: 20180605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |