CN201072493Y - Bearing for watch - Google Patents
Bearing for watch Download PDFInfo
- Publication number
- CN201072493Y CN201072493Y CNU2007200139005U CN200720013900U CN201072493Y CN 201072493 Y CN201072493 Y CN 201072493Y CN U2007200139005 U CNU2007200139005 U CN U2007200139005U CN 200720013900 U CN200720013900 U CN 200720013900U CN 201072493 Y CN201072493 Y CN 201072493Y
- Authority
- CN
- China
- Prior art keywords
- outer ring
- ring body
- bearing
- circular body
- ball
- 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
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- Rolling Contact Bearings (AREA)
- Friction Gearing (AREA)
Abstract
The utility model relates to a bearing used in watches, consisting of an inner circular body (3), roll balls (4), a support bracket (5) and an outer circular body. The outer circular body is formed by an outer circular ring (12) being tightly matched and fixedly connected with an outer ring (11). A track groove of the roll balls (4) on the outer circular body is separated into two bodies, an outer ring sleeve (13) is arranged on the outer ring (11), and the track groove face on the outer circular body is convenient for finish machining; and holes, grooves, gears, etc. to be processed on the outer circular body are separated from the outer ring (11) and processed on the outer ring sleeve (13). Mechanical stress deformation generated in the processing and deformation caused by heat treatment of the outer ring sleeve (13) do not influence the precision of the track groove on the outer ring (11), thus improving and guaranteeing the precision of the bearing and improving transmission efficiency.
Description
Technical field
The utility model relates to the bearing that uses on the wrist-watch.
Background technology
The rolling bearing such as the top flywheel bracket bearing that use on the present wrist-watch, the autoplugger bearing, be by inner ring body, ball, bearing support, outer ring body constitutes, inner ring body is to be made of interior ring and interior loop combination, interior ring is tightly fixed by seam with interior ring and is connected, make ball, bearing support is installed in the ball orbit groove between inner ring body and outer ring body, ball orbit groove on the endoporus side of this structure outer ring body is owing to be to process in very little hole, finishing is very difficult, can't carry out the secondary Precision Machining and improve smooth finish, so ball orbit accuracy of grooves and smooth finish on the outer ring body medial surface are undesirable, frictional resistance is big, the running resistance of bearing self strengthens, and influences transmission efficiency.For bearing is rotated flexibly, can only strengthen the axial dimension of ball orbit groove, promptly strengthen the tolerance clearance of the orbital groove on ball and inner ring body, the outer ring body, the end of bearing is jumped, the increasing of directly beating, the transmitting accuracy reduction.In addition, the bearing that has is because the function needs are needing some hole, groove, gear in the reprocessing on the outer ring body, outer ring body can produce distortion after process machine work and thermal treatment, and ovality increases, and can cause rotation dumb, and all standing takes place when causing bearing operation.
The utility model content
The purpose of this utility model is to improve at the shortcoming of prior art, for a kind of processing, precision height, wrist-watch bearing that transmission efficiency is high of being easy to.
The utility model includes inner ring body 3, ball 4, bearing support 5, outer ring body formation, outer ring body is constituted by outer shroud 11 and external toroidal ring 12, external toroidal ring 12 is tightly fixed with outer shroud 11 lower port and is connected, and ball 4, bearing support 5 are installed in the ball orbit groove of 1 of inner ring body 3 and outer ring body; Ring set 13 outside also being provided with on outer shroud 11, outer ring set 13 are tightly fixed with outer shroud 11 upper end seams and are connected.
The utility model outer ring body is by external toroidal ring 12 and outer shroud 11 ports formations that be connected, and separately on two bodies, makes the orbital groove face on the outer ring body be convenient to processing the orbital groove on the outer ring body, is convenient to carry out the secondary Precision Machining, the raising precision.Ring set 13 can be processed processing on the ring set 13 outside separating with outer shroud 11 at the hole that processes on the outer ring body, groove, gear etc. outside being provided with on outer shroud 11, the distortion that mechanical stress distortion that produces in the process and external ring set 13 are heat-treated also can not influence the ball orbit accuracy of grooves of outer ring body, can improve and guarantee the precision of bearing, improve transmission efficiency.
Description of drawings
Accompanying drawing 1 is the utility model example structure synoptic diagram.
Embodiment
The utility model includes inner ring body 3, ball 4, bearing support 5, outer ring body formation, outer ring body is constituted by outer shroud 11 and external toroidal ring 12, ball on the outer ring body 4 orbital grooves are separated on two bodies, external toroidal ring 12 is tightly fixed with outer shroud 11 lower port and is connected, and ball 4, bearing support 5 are installed in the ball orbit groove between inner ring body 3 and outer ring body; Ring set 13 outside also being provided with on outer shroud 11, outer ring set 13 are tightly fixed with outer shroud 11 upper end seams and are connected, and offer needed hole, groove, gear etc. on the ring set 13 outside.
Claims (3)
1. wrist-watch bearing, include inner ring body (3), ball (4), bearing support (5), outer ring body formation, it is characterized in that outer ring body is constituted by outer shroud (11) and external toroidal ring (12), ball on the outer ring body (4) orbital groove is separated on two bodies, and external toroidal ring (12) is tightly fixed with outer shroud (11) lower port and is connected.
2. wrist-watch bearing according to claim 1, ring set (13) outside it is characterized in that being provided with on outer shroud (11), outer ring set (13) are tightly fixed with outer shroud (11) upper end seam and are connected.
3. wrist-watch bearing according to claim 2 is characterized in that offering needed hole, groove, gear on the ring set (13) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200139005U CN201072493Y (en) | 2007-08-18 | 2007-08-18 | Bearing for watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200139005U CN201072493Y (en) | 2007-08-18 | 2007-08-18 | Bearing for watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201072493Y true CN201072493Y (en) | 2008-06-11 |
Family
ID=39551049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200139005U Expired - Fee Related CN201072493Y (en) | 2007-08-18 | 2007-08-18 | Bearing for watch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201072493Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181800A (en) * | 2013-05-24 | 2014-12-03 | 深圳市飞亚达科技发展有限公司 | Watch mechanical movement structure |
| CN105093894A (en) * | 2014-05-08 | 2015-11-25 | 天津海鸥表业集团有限公司 | Automatic cochain mechanism of mechanical watch |
-
2007
- 2007-08-18 CN CNU2007200139005U patent/CN201072493Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181800A (en) * | 2013-05-24 | 2014-12-03 | 深圳市飞亚达科技发展有限公司 | Watch mechanical movement structure |
| CN104181800B (en) * | 2013-05-24 | 2016-12-28 | 深圳市飞亚达科技发展有限公司 | A kind of wrist-watch mechanical movement structure |
| CN105093894A (en) * | 2014-05-08 | 2015-11-25 | 天津海鸥表业集团有限公司 | Automatic cochain mechanism of mechanical watch |
| CN105093894B (en) * | 2014-05-08 | 2017-08-29 | 天津海鸥表业集团有限公司 | Automatic cochain mechanism of mechanical watch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20110818 |