CN2192763Y - Camber type auto-lock coupling - Google Patents
Camber type auto-lock coupling Download PDFInfo
- Publication number
- CN2192763Y CN2192763Y CN 94207268 CN94207268U CN2192763Y CN 2192763 Y CN2192763 Y CN 2192763Y CN 94207268 CN94207268 CN 94207268 CN 94207268 U CN94207268 U CN 94207268U CN 2192763 Y CN2192763 Y CN 2192763Y
- Authority
- CN
- China
- Prior art keywords
- star
- wheel
- retaining ring
- curve
- driving shaft
- 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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Abstract
The utility model belongs to an improved shaft coupling. Because of the obvious wearing change of rollers of the exiting flat pattern auto-lock shaft coupling wedge angle, the service life is limited. The utility model improves the structural shape of a wedge-shaped groove, the variation of the actual wedge angle is small, and thus the utility model is provided with long service life. The utility model can be used for the driving devices of the industries, such as building, metallurgy, machinery, textile, etc., and driving devices requires auto-lock and long service life.
Description
The utility model belongs to a kind of improved coupling.
Existing employing roller is made the self-marketing coupling of friction piece, improves forming on the mono-directional overrun clutch basis, and its star-wheel working surface is the plane, is called for short plane self-locking coupling.This type coupling processing is simple, uses.Roller is in operation and will weares and teares in the coupling, and diameter reduces, and causes its point of contact change on wedge slot neutralizing tank both sides, causes that the actual angle of wedge changes, because wedge slot is made up of a plane and a curved surface, this variation (becoming big) is just apparent in view.After the angle of wedge surpassed certain value, coupling self-locking meeting was lost efficacy, so be subjected to certain limitation its working life.
The purpose of this utility model is to provide a kind of improved self-locking coupling, makes it that be arranged long working life.
The purpose of this utility model is achieved in that on the basis of existing plane self-locking coupling, change the star-wheel working surface into curved surface, be called for short curved face type self-locking coupling, it is by retaining ring, shift fork, the output body, spring, roller, screw, back-up ring is formed, retaining ring is quiet to be connected on the frame, concentric with driving shaft, shift fork is quiet to be connected on the driving shaft, the output body can dally on the retaining ring or on the driving shaft, but can not play, its end mill becomes star-wheel, with mounting spring and support friction piece, the other end is as the point of attachment of output torque, screw and back-up ring are used for to the output axon to spacing, star-wheel working surface and retaining ring internal surface form wedge slot, this groove narrows down gradually from the star-wheel boss, roller at the spring action hyposphene in the narrow place of groove, feature of the present utility model is: on the cross section perpendicular to the star-wheel axis, star-wheel working surface profile line be by with retaining ring inner surface profile line with protruding to curve constitute, this curve can be made up of a kind of curve, also can be made up of two or more curve, be convenient processing, the intermediate location between star-wheel working surface and boss side surfaces can be plane or curved surface.
Describe in detail below in conjunction with example:
Fig. 1 was the sectional view of coupling shaft axis.
Fig. 2 is the sectional drawing in AA cross section among Fig. 1.
With reference to Fig. 1, retaining ring (3) is connected on the frame (1) with screw (2) is quiet, and is concentric with driving shaft (6), and output body (5) can be gone up idle running at driving shaft (6), and screw (7), back-up ring (8) are to exporting axon to spacing.
With reference to Fig. 2, the protruding fork branch of shift fork (4) and the cross section of output body (5) star-wheel part junction and the bullet of installing therebetween (10), roller (9) are as shown in the figure.The profile line of output body (5) star-wheel part working surface is an Archimedes spiral, and star-wheel working surface and the formation of retaining ring internal surface is by two with the protruding wedge slot that constitutes to curved surface, roller (9) at the effect hyposphene of spring (10) in the narrow place of groove, 8～10 ° of the angles of wedge.
Operating principle: driving shaft (6) rotates.Shift fork (4) rotates thereupon, its protruding fork presses roller (9), make it to move on to the groove width place and promote output body (5) and rotate, the opposite side roller of not pressed by protruding fork is not when output body (5) rotates, the elastic force that the frictional force on roller and groove both sides overcomes spring (10) makes roller be rolled into the groove width place, so output body (5) rotates synchronously with driving shaft (6) under shift fork (4) effect, output body (5) can connect the output torque with driven shaft or other driving parts.When driving shaft (6) was motionless, if driven shaft or other driving parts interlock output body (5), because retaining ring (3) Jing Guan is connected on the frame (1), that the roller wedge of wedge in groove got was tighter once rotating for output body (5), thus the realization self-locking.
The utility model has improved the structure shape of wedge slot, therefore after the roller wearing and tearing, compares with plane self-locking coupling, and the actual angle of wedge changes little, and little degree is relevant with selected star-wheel working surface profile line curve and parameter of curve.Because it is little that the angle of wedge changes, so it has long working life, can be widely used in building, industries such as metallurgy, machinery, weaving are with needing self-locking in the transmission device and requiring the occasion of working life than length.
Claims (1)
- Curved face type self-locking coupling, belong to a kind of improved coupling, it is by retaining ring, shift fork, the output body, spring, roller, screw, back-up ring is formed, retaining ring is quiet to be connected on the frame, concentric with driving shaft, shift fork is quiet to be connected on the driving shaft, the output body can dally on the retaining ring or on the driving shaft, but can not play, its end mill becomes star-wheel, with mounting spring and support friction piece, the other end is as the point of attachment of output torque, screw and back-up ring are used for to the output axon to spacing, star-wheel working surface and retaining ring internal surface form wedge slot, this groove narrows down gradually from the star-wheel boss, roller at the spring action hyposphene in the narrow place of groove, feature of the present utility model is: on the cross section perpendicular to the star-wheel axis, star-wheel working surface profile line be by with retaining ring inner surface profile line with protruding to curve constitute, this curve can be made up of a kind of curve, also can form by two or more curve, be convenient processing, the intermediate location between star-wheel working surface and boss side surfaces can be plane or curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94207268 CN2192763Y (en) | 1994-03-21 | 1994-03-21 | Camber type auto-lock coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94207268 CN2192763Y (en) | 1994-03-21 | 1994-03-21 | Camber type auto-lock coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2192763Y true CN2192763Y (en) | 1995-03-22 |
Family
ID=33825643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94207268 Expired - Fee Related CN2192763Y (en) | 1994-03-21 | 1994-03-21 | Camber type auto-lock coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2192763Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353531A (en) * | 2011-07-24 | 2012-02-15 | 宁波华德汽车零部件有限公司 | Flexible coupler device for automobile parts test |
| CN103089853A (en) * | 2011-11-02 | 2013-05-08 | 攀钢集团西昌钢钒有限公司 | Coupler |
-
1994
- 1994-03-21 CN CN 94207268 patent/CN2192763Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353531A (en) * | 2011-07-24 | 2012-02-15 | 宁波华德汽车零部件有限公司 | Flexible coupler device for automobile parts test |
| CN102353531B (en) * | 2011-07-24 | 2013-06-19 | 宁波华德汽车零部件有限公司 | Flexible coupler device for automobile parts test |
| CN103089853A (en) * | 2011-11-02 | 2013-05-08 | 攀钢集团西昌钢钒有限公司 | Coupler |
| CN103089853B (en) * | 2011-11-02 | 2015-12-02 | 攀钢集团西昌钢钒有限公司 | Coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |