CN203979159U - A kind of bearing with screwing structure - Google Patents
A kind of bearing with screwing structure Download PDFInfo
- Publication number
- CN203979159U CN203979159U CN201420454780.2U CN201420454780U CN203979159U CN 203979159 U CN203979159 U CN 203979159U CN 201420454780 U CN201420454780 U CN 201420454780U CN 203979159 U CN203979159 U CN 203979159U
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- CN
- China
- Prior art keywords
- inner ring
- fastening piece
- piece
- bearing
- screw thread
- 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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- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a kind of bearing with screwing structure, having solved prior art inner ring coordinates not exclusively relative sliding or shaking phenomenon can occur with bearing shaft, cause the technical problem of device damage, its technological scheme main points are to comprise inner ring, be set in the outer ring on inner ring, be placed in the bearing shaft of inner ring, ball between outer ring and inner ring, and be sheathed on ball holder, described inner ring two ends are connected with respectively the fastening piece of cylindrical setting, the opposite side of the corresponding inner ring of described fastening piece is arranged with the tightening piece of cylindric setting, the opposite side of the corresponding inner ring of described fastening piece is provided with at least two opening slots, described opening slot is circularly and evenly distributed along fastening piece.On bearing inner race of the present utility model, be arranged with tightening piece, improved the degree of stability between inner ring and bearing shaft, improved the safety in utilization of bearing, extended the working life of bearing.
Description
Technical field
The utility model relates to a kind of bearing, and in particular, it relates to a kind of bearing with screwing structure.
Background technique
Bearing is in mechanical transmission course, to work the parts of fixing and reducing load friction factor.Also can say, when other parts produce relative movement each other on axle, be used for reducing the fixing parts of friction factor and retainer shaft central position in power transmission process.Bearing is a kind of very important component in contemporary machinery.Its major function is supported mechanical solid of rotation; mechanical load friction factor in order to reduction equipment in transmission process; its inner ring and bearing shaft adopt interference fit; if inner ring and bearing shaft generation relative sliding or rock; whole transmission system will be paralysed; therefore the degree of stability coordinating between inner ring and bearing shaft is extremely important; at present; the inwall of market upper bearing (metal) inner ring mostly is smooth surface; so be often connected relative sliding or shaking phenomenon can occur between inner ring and bearing shaft, can destroy the stability of whole transmission system.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of tightening piece that has, and improves bearing fit stability, extends the bearing bearing with tightening piece in working life.
For achieving the above object, the utility model provides following technological scheme: a kind of bearing with screwing structure, comprise inner ring, be set in the outer ring on inner ring, be placed in the bearing shaft of inner ring, ball between outer ring and inner ring, and be sheathed on ball holder, described inner ring two ends are connected with respectively the fastening piece of cylindrical setting, described fastening piece is provided with the circular cavity suitable with inner ring cavity, the opposite side of the corresponding inner ring of described fastening piece is arranged with the tightening piece of cylindric setting, in described tightening piece, offer for connecting the attachment hole of fastening piece, the wall of described attachment hole is round table-like setting, and the larger side of the opening of described round table-like wall is towards inner ring, described fastening piece is threaded with tightening piece, the opposite side of the corresponding inner ring of described fastening piece is provided with at least two opening slots, described opening slot is circularly and evenly distributed along fastening piece.
By adopting technique scheme, fastening piece is cylindric setting, in its fastening piece, be provided with the through hole suitable with inner ring cavity size, its fastening piece one end is connected with inner ring one end, its fastening piece end face and inner ring end face are suitable, tightening piece inwall is round table-like setting, the side that its opening is larger is sheathed on fastening piece, surface of contact between tightening piece and fastening piece arranges respectively suitable screw thread, tightening piece can be rotated with respect to fastening piece on screw thread, at fastening piece, at least two opening slots that are circularly and evenly distributed are set on respect to the opposite side end face of inner ring, if tightening piece clockwise turns to fastening bearing shaft, when bearing shaft is placed in inner ring, tightening piece turns clockwise by screw thread on fastening piece, opening slot gap dwindles, fastening piece is reduced away from a side end face diameter of inner ring, the bearing shaft fastening in inner ring maintains static, bearing shaft stable generation in inner ring slided or shaking phenomenon, improved bearing fit stability, extended bearing working life, when the bearing shaft in inner ring need to take out, be rotated counterclockwise tightening piece, make opening slot gap become large, drive fastening piece to increase away from a side end face diameter of inner ring, bearing shaft can be taken out from inner ring, facilitated the fixing and dismounting of bearing shaft in inner ring.
The utility model is further set to: described fastening piece is provided with the first screw thread with respect to the surface of tightening piece, described tightening piece is provided with the second screw thread with respect to the surface of fastening piece, described the first screw thread and the second screw thread are suitable, and described the first screw thread is positioned at opening slot with respect to the surface of tightening piece.
By adopting technique scheme, at fastening piece, with respect to the other end position of inner ring one end, opening slot is set, the setting that is circularly and evenly distributed on fastening piece of its opening slot, on the fastening piece outer wall of the position at opening slot place, the first screw thread is set, on round table-like inwall in tightening piece with respect to fastening piece, the second screw thread is set, its first screw thread and the second screw thread are suitable, when tightening piece is when on fastening piece, spiral is tightened, the space of opening slot reduces, the end face diameter of fastening piece is reduced, the opening slot setting that is circularly and evenly distributed, can make fastening piece end face evenly dwindle, make bearing shaft in fastening piece when being fixed, there will not be eccentric phenomena, affect using effect or destroy whole transmission system, can improve antiwhip.
The utility model is further set to: described tightening piece is provided with fixed block, and described fastening piece is provided with for fixed block and slides or fixing sliding-groove, and described sliding-groove and the first threaded connection place are provided with back-up ring projection.
By adopting technique scheme, fixed block is arranged on tightening piece with respect to one end of the close end face of inner ring one side, fastener surface at fixed block with respect to the place, one end of inner ring one side arranges for fixed block slip or fixing sliding-groove, on the fastening piece of sliding-groove and the first threaded connection place, back-up ring projection is set, when tightening piece moves to the direction with respect to inner ring, fixed block is tightened part and drives mobile in sliding-groove, after bearing shaft is fixing, by fixed block, tightening piece is fixed on fastening piece, situation can not rotate, increased whole antiwhip, improved bearing reliability of operation, when the bearing shaft in inner ring need to take out, unclamp the fixed block in tightening piece, tightening piece can be rotated on fastening piece, opening slot space on fastening piece increases, make fastening piece end face diameter become large, bearing shaft is loosening in fastening piece, can from inner ring, take out, when fixed block slides into back-up ring projection and goes out, fixed block is blocked, tightening piece can not come off from fastening piece, there is the part damage phenomenon that drops, improved bearing working reliability.
The utility model is further set to: described tightening piece is provided with the 3rd screw thread with respect to the surface of fixed block, and described fixed block is provided with the 4th screw thread with respect to the surface of tightening piece, and described the 3rd screw thread and the 4th screw thread are suitable.
By adopting technique scheme, the 3rd screw thread is set on the surface in tightening piece with respect to the contacting point of fixed block, the 4th screw thread is set on the surface at fixed block with respect to the contacting point of tightening piece, the 3rd screw thread and the 4th screw thread are suitable, rotational fixture, can make fixed block with respect to one end conflict and the fastener surface of fastening piece or leave fastener surface, when bearing shaft needs fixedly in inner ring, fixed block in tightening piece, pass through screw thread rotation, contact on fastening piece, tightening piece is fixed on fastening piece, phenomenon does not rotate, when bearing shaft need to take out from inner ring, rotational fixture, make fixed block separated with fastener surface with respect to one end of fastening piece, tightening piece can be rotated on fastening piece, make bearing shaft in inner ring, become flexible and take out from inner ring, this set has increased the working stability of bearing, service behaviour and the working life of bearing have been improved.
The utility model is further set to: described fixed block is coniform setting with respect to the end face of fastening piece one end, and the circular cone top of described end face contacts on fastening piece outer wall.
By adopting technique scheme, at fixed block, with respect to one end of fastening piece, be arranged to coniform end face, its end face circular cone top contacts on fastening piece outer wall, when tightening piece need to be fixed while not rotating, fixed block circular cone contact is touched and is fixed on fastener surface, make to increase by reducing surface of contact the stability maintenance of fixed block, make bearing when work, tightening piece on the fastening piece situation that can not rotate, affect using effect, improved the working stability and the working life that has extended bearing of bearing.
The utlity model has following advantage: improved antiwhip and using effect, extended the working life of bearing.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation with the bearing of screwing structure of the utility model;
Fig. 2 is a kind of tightening piece structural representation with the bearing of screwing structure of the utility model;
Fig. 3 is a kind of inner ring plan view with the bearing of screwing structure of the utility model;
Fig. 4 is a kind of A portion enlarged diagram with the bearing of screwing structure of the utility model.
In figure: 1, outer ring; 2, inner ring; 21, the first screw thread; 22, back-up ring projection; 23, opening slot; 24, sliding-groove; 25, fastening piece; 3, ball; 4, retainer; 5, tightening piece; 51, the second screw thread; 52, the 3rd screw thread; 6, fixed block; 61, the 4th screw thread.
Embodiment
Shown in 4, a kind of bearing with screwing structure of the present embodiment, comprise inner ring 2, be set in the outer ring 1 on inner ring 2, be placed in the bearing shaft of inner ring 2, ball 3 between outer ring 1 and inner ring 2, and be sheathed on ball 3 holders 4, described inner ring 2 two ends are connected with respectively the fastening piece 25 of cylindrical setting, described fastening piece 25 is provided with the circular cavity suitable with inner ring 2 cavitys, the opposite side of the corresponding inner ring 2 of described fastening piece 25 is arranged with the tightening piece 5 of cylindric setting, in described tightening piece 5, offer for connecting the attachment hole of fastening piece 25, the wall of described attachment hole is round table-like setting, and the larger side of the opening of described round table-like wall is towards inner ring 2, described fastening piece 25 is threaded with tightening piece 5, the opposite side of the corresponding inner ring 2 of described fastening piece 25 is provided with at least two opening slots 23, described opening slot 23 is circularly and evenly distributed along fastening piece 25, described fastening piece 25 is provided with the first screw thread 21 with respect to the surface of tightening piece 5, described tightening piece 5 is provided with the second screw thread 51 with respect to the surface of fastening piece 25, described the first screw thread 21 and the second screw thread 51 are suitable, described the first screw thread 21 is positioned at opening slot 23 with respect to the surface of tightening piece 5, described tightening piece 5 is provided with fixed block 6, described fastening piece 25 is provided with for fixed block 6 and slides or fixing sliding-groove 24, described sliding-groove 24 and the first screw thread 21 joints are provided with back-up ring projection 22, described tightening piece 5 is provided with the 3rd screw thread 52 with respect to the surface of fixed block 6, described fixed block 6 is provided with the 4th screw thread 61 with respect to the surface of tightening piece 5, described the 3rd screw thread 52 and the 4th screw thread 61 are suitable, described fixed block 6 is coniform setting with respect to the end face of fastening piece 25 one end, the circular cone top of described end face contacts on fastening piece 25 outer walls.
When processing is installed, by outer ring 1 sheathed with inner ring 2 on, and ball 3 is positioned between outer ring 1 and inner ring 2, then retainer 4 is sheathed on ball 3, fastening piece 25 is cylindric setting, in its fastening piece 25, be provided with the through hole suitable with inner ring 2 cavity size, its fastening piece 25 one end are connected with inner ring 2 one end, its fastening piece 25 end faces and inner ring 2 end faces are suitable, then tightening piece 5 is arranged to interior round table-like with respect to the inwall of fastening piece 25, the second screw thread 51 is set on the surface of female cone, and the larger side of tightening piece 5 round platform wall openings is sheathed on fastening piece 25, the first screw thread 21 is set on the surface at fastening piece 25 with respect to the position of tightening piece 5, its first screw thread 21 and the second screw thread 51 are suitable, on the fastening piece 25 at the first screw thread 21 places, be even circumferential opening slot 23 is set, its opening slot 23 from fastening piece 25 away from one end end face of inner ring 2 to inner ring 2 direction recessed openings, its recessed openings degree of depth is consistent with the reach of the first screw thread 21, in tightening piece 5, with respect to inner ring 2, near one end of end face, fixed block 6 is set, on surface of contact between its fixed block 6 and tightening piece 5, suitable screw thread is set respectively, circular cone end surface shape at fixed block 6 with respect to one end end face setting of inner ring 2, on fastening piece 25 surfaces at fastening piece 25 with respect to fixed block 6, sliding-groove 24 is set, for fixed block 6, slide, fastening piece 25 surfaces in sliding-groove 24 and the first screw thread 21 joints arrange back-up ring projection 22, be used for stopping fixed block 6, tightening piece 5 can not come off.
In use, bearing shaft is positioned in inner ring 2, rotate tightening piece 5 and make opening slot 23 gap smaller, drive fastening piece 25 end face diameters to reduce, when the inwall of fastening piece 25 ends conflict with bearing shaft on after, by the fixed block 6 in tightening piece 5, tightening piece 5 is fixed on fastening piece 25 not to rotate, bearing shaft is fixed in inner ring 2, the situation that bearing shaft and inner ring 2 relative sliding do not occur or rock, when bearing shaft need to take out from inner ring 2, loosening fixed block 6, tightening piece 5 can be rotated on fastening piece 25, make opening slot 23 spaces become large, drive the diameter of fastening piece 25 end faces to increase, make the bearing shaft in inner ring 2 loosening, can from inner ring 2, take out.
The utlity model has following advantage: improved antiwhip and using effect, extended the working life of bearing.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technological schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a bearing with screwing structure, comprise inner ring, be set in the outer ring on inner ring, be placed in the bearing shaft of inner ring, ball between outer ring and inner ring, and be sheathed on ball holder, it is characterized in that: described inner ring two ends are connected with respectively the fastening piece of cylindrical setting, described fastening piece is provided with the circular cavity suitable with inner ring cavity, the opposite side of the corresponding inner ring of described fastening piece is arranged with the tightening piece of cylindric setting, in described tightening piece, offer for connecting the attachment hole of fastening piece, the wall of described attachment hole is round table-like setting, and the larger side of the opening of described round table-like wall is towards inner ring, described fastening piece is threaded with tightening piece, the opposite side of the corresponding inner ring of described fastening piece is provided with at least two opening slots, described opening slot is circularly and evenly distributed along fastening piece.
2. a kind of bearing with screwing structure according to claim 1, it is characterized in that: described fastening piece is provided with the first screw thread with respect to the surface of tightening piece, described tightening piece is provided with the second screw thread with respect to the surface of fastening piece, described the first screw thread and the second screw thread are suitable, and described the first screw thread is positioned at opening slot with respect to the surface of tightening piece.
3. a kind of bearing with screwing structure according to claim 2, it is characterized in that: described tightening piece is provided with fixed block, described fastening piece is provided with for fixed block and slides or fixing sliding-groove, and described sliding-groove and the first threaded connection place are provided with back-up ring projection.
4. a kind of bearing with screwing structure according to claim 3, it is characterized in that: described tightening piece is provided with the 3rd screw thread with respect to the surface of fixed block, described fixed block is provided with the 4th screw thread with respect to the surface of tightening piece, and described the 3rd screw thread and the 4th screw thread are suitable.
5. a kind of bearing with screwing structure according to claim 4, is characterized in that: described fixed block is coniform setting with respect to the end face of fastening piece one end, and the circular cone top of described end face contacts on fastening piece outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420454780.2U CN203979159U (en) | 2014-08-13 | 2014-08-13 | A kind of bearing with screwing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420454780.2U CN203979159U (en) | 2014-08-13 | 2014-08-13 | A kind of bearing with screwing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979159U true CN203979159U (en) | 2014-12-03 |
Family
ID=51976609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420454780.2U Expired - Fee Related CN203979159U (en) | 2014-08-13 | 2014-08-13 | A kind of bearing with screwing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036687A (en) * | 2021-03-20 | 2021-06-25 | 昝白茹 | Power wire and cable protection sleeve |
-
2014
- 2014-08-13 CN CN201420454780.2U patent/CN203979159U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036687A (en) * | 2021-03-20 | 2021-06-25 | 昝白茹 | Power wire and cable protection sleeve |
| CN113036687B (en) * | 2021-03-20 | 2022-04-29 | 广州市秀全电线电缆有限责任公司 | Power wire and cable protection sleeve |
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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: 20141203 Termination date: 20160813 |