CN202579530U - Self-locking check ring and engine using self-locking check ring - Google Patents
Self-locking check ring and engine using self-locking check ring Download PDFInfo
- Publication number
- CN202579530U CN202579530U CN 201220173772 CN201220173772U CN202579530U CN 202579530 U CN202579530 U CN 202579530U CN 201220173772 CN201220173772 CN 201220173772 CN 201220173772 U CN201220173772 U CN 201220173772U CN 202579530 U CN202579530 U CN 202579530U
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- ring
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Abstract
The utility model relates to a self-locking check ring and an engine using the self-locking check ring. According to the self-locking check ring, an external thread is processed on the outer periphery of a check ring substrate, so that the check ring substrate can be coaxially threaded connected in an inner hole of a spindle sleeve. When a position of the check ring substrate in the spindle sleeve is locked by an elastic anti-loosening ring which can expand along radial direction and is fixed on the check ring substrate, the position of the check ring substrate in the spindle sleeve is locked under the condition that an extruding force to the interior of the spindle sleeve is prevented by the elastic anti-loosening ring because an external diameter size of the elastic anti-loosening ring is between a maximal size and a minimal size of the external thread, and the self-locking check ring has a self-locking function. An integrated structure is formed by the check ring substrate and the elastic anti-loosening ring through the fixed connection, so that the self-locking check ring has the advantages of simple structure and convenience in use and the problem of complex connecting structure between functional components of the engine is solved.
Description
Technical field
The utility model relates to the machanical fastener technical field, relates in particular to a kind of self locking type back-up ring, also relates to the motor that uses this back-up ring simultaneously.
Background technique
In the Aeronautics and Astronautics motor; The normal connection of adopting between safety fuse cutout or each building blocks of function of compression spring locking of past, but the locking device complex design of safety fuse cutout or compression spring is assembled loaded down with trivial details; And when each building blocks of function is connected; For the functional stabilization of guarantee insurance silk or compression spring, usually need adopt other the reliability of accessory connections, thereby make that the linkage structure between each building blocks of function of motor is complicated to guarantee to connect between each building blocks of function; Improve the assembling difficulty of motor, increased the manufacture cost of motor.
The model utility content
The utility model provides a kind of self locking type back-up ring, be intended to solve the linkage structure complicated problems between each building blocks of function of motor in the existing technology, a kind of motor that uses this back-up ring also is provided simultaneously.
The technological scheme of the self locking type back-up ring of the utility model is following:
A kind of self locking type back-up ring; Comprise the back-up ring matrix; Be processed with the outside thread of the front end that is in the back-up ring matrix on the periphery of described back-up ring matrix; Be fixed with on the described back-up ring matrix with the elasticity that is in outside thread radially harmomegathus afterwards of the coaxial setting of back-up ring matrix and prevent loose ring, the outside dimension of the anti-loose ring of described elasticity is between described externally threaded big footpath size and path size.
The outside dimension of the anti-loose ring of described elasticity is greater than described externally threaded middle footpath.
The outer circumferential face of the anti-loose ring of described elasticity is the from one end to the other side diminishing circular cone of diameter.
Offer the mounting groove of the annular that is absorbed in to back-up ring matrix inside on the periphery wall of an end that is fixed with circlip of described back-up ring matrix, described circlip is fixed in the described mounting groove.
Described mounting groove away from place, the outer of an externally threaded side channel wall be provided with to the inside of mounting groove plough under in turn edge, the anti-loose ring of described elasticity through turn edge in described with the anti-loose ring ring roof pressure of elasticity mounting groove near externally threaded cell wall on so that the anti-loose ring of described elasticity be fixed in the mounting groove.
The internal diameter size of the rear end of described back-up ring matrix dwindles to the middle part from opening gradually.
The anti-loose ring of described elasticity is the polyimide ring.
The technological scheme of the motor of the utility model is following:
A kind of motor; The drive bearing that comprises installing in collar bush and the collar bush; One end of described collar bush is equiped with and is used to stop the in axial sliding Stop structure of the outer ring of drive bearing along collar bush; Described Stop structure comprises the back-up ring matrix; Be processed with the outside thread of the front end that is in the back-up ring matrix on the periphery of described back-up ring matrix, be fixed with on the described back-up ring matrix with the elasticity that is in outside thread radially harmomegathus afterwards of the coaxial setting of back-up ring matrix and prevent loose ring, the outside dimension of the anti-loose ring of described elasticity is between described externally threaded big footpath size and path size.
The outside dimension of the anti-loose ring of described elasticity is greater than described externally threaded middle footpath.
Offer the mounting groove of the annular that is absorbed in to back-up ring matrix inside on the periphery wall of an end that is fixed with circlip of described back-up ring matrix, described circlip is fixed in the described mounting groove.
The utility model through threading on the periphery of back-up ring matrix so that the back-up ring matrix can coaxial threaded be connected in the endoporus of collar bush; Through the position of the anti-loose ring locking back-up ring matrix of the elasticity of the fixing radially harmomegathus of back-up ring matrix in collar bush; Just in collar bush during spinning back-up ring matrix; Because the outside dimension of the anti-loose ring of elasticity is between described externally threaded big footpath size and path size; And harmomegathus radially, thereby when the back-up ring matrix stopped operating, the anti-loose ring of elasticity can be to avoiding producing extruding force in the collar bush; To stop the back-up ring matrix to its direction that unscrews is rotated; Thereby locked the position of back-up ring matrix in collar bush, and made the function that the utlity model has self-locking, and the anti-loose ring of the back-up ring matrix of the utility model and elasticity constitutes a kind of overall structure through being fixedly connected between the two; And then make and the utlity model has advantage simple in structure, easy to use, solved the linkage structure complicated problems between each building blocks of function of motor.
Description of drawings
Fig. 1 is the embodiment's of the utility model a structural representation;
Fig. 2 is the structural scheme of mechanism of self locking type back-up ring among Fig. 1.
Embodiment
The embodiment of the motor of the utility model: as depicted in figs. 1 and 2; This motor comprises main shaft 8 and collar bush 7; The drive bearing of installing on the periphery of main shaft 8 through its end rotates and is assemblied in the endoporus of collar bush 7; And the Stop structure of the end setting through collar bush 7 stops outer ring the moving axially along collar bush 7 of drive bearing 6; Described Stop structure comprises the self locking type back-up ring 5 that coaxial threaded connects in the endoporus of end of collar bush 7; This self locking type back-up ring 5 is made up of the anti-loose ring 2 of the elasticity of radially harmomegathus fixing on the periphery of back-up ring matrix 4 and back-up ring matrix 4, and wherein, the internal diameter of the rear end of back-up ring matrix 4 dwindles to inside from port gradually; Be processed with outside thread on the periphery of the front end of back-up ring matrix 4; Be processed with the mounting groove of the annular that is absorbed in to the inside of back-up ring matrix 4 on the periphery of rear end, the anti-loose ring 2 of described elasticity through mounting groove away from turn edge in being provided with on the externally threaded side channel wall 1 with anti-loose ring 2 roof pressures of elasticity on the opposite side sidewall of mounting groove so that the anti-loose ring 2 of elasticity is fixed in the mounting groove, the outside dimension of the anti-loose ring 2 of described elasticity is between described externally threaded big footpath size and middle footpath size; And the anti-loose ring 2 of described elasticity is the polyimide ring, and the external diameter of circlip 2 dwindles from front end to the back-end gradually.
The rear end of described back-up ring matrix 4 is the enlarging shape, thereby makes the rear end periphery wall of back-up ring matrix 4 have the effect that support is risen to the anti-loose ring 2 of elasticity; Self locking type back-up ring 5 is when assembling; The anti-loose ring 2 of deformation requirements apolegamy elasticity of the anti-loose ring 2 of elasticity during according to assembling in collar bush 7; And make the anti-loose ring 2 of elasticity by being embedded in the mounting groove tightly, and avoiding when the spinning self locking type back-up ring 5, freely the rotating of the anti-loose ring 2 of elasticity; The outside dimension that guarantees the anti-loose ring 2 of elasticity is between described externally threaded big footpath size and path size; Self locking type back-up ring 5 is dwindled to the other end from the outside dimension that is processed with an externally threaded end; Because the external diameter of circlip 2 dwindles from front end to the back-end gradually, make self locking type back-up ring 5 present the contraction structure that extends behind the forward direction simultaneously.
The utility model in use; With drive bearing 6 and main shaft 8 to be fixed after assembling on the collar bush 7, again with self locking type back-up ring 5 corresponding spinnings when the collar bush 7, collar bush 7 earlier with the back-up ring matrix 4 of self locking type back-up ring 5 on outside thread corresponding adaptive; The anti-loose ring 2 of the elasticity of self locking type back-up ring 5 can screw in the collar bush 7 under externally threaded guiding function; Continuation screws in self locking type back-up ring 5 in collar bush 7, the internal thread of processing on the inwall of collar bush 7 will be screwed in by the externally threaded front end of self locking type back-up ring 5, from the rear end back-out of the anti-loose ring 2 of elasticity; Because the radial dimension of the anti-loose ring 2 of elasticity is bigger; And the anti-loose ring 2 of elasticity is harmomegathus radially, and when the internal thread on the inwall of collar bush 7 passed self-locking nut, the anti-loose ring 2 of the elasticity on the self locking type back-up ring 5 was squeezed and dwindles; Because the elastic recovery effect of the anti-loose ring of elasticity 2 self; Increase the extrusion friction power of self locking type back-up ring 5 and collar bush 7, guaranteed the self-locking of self locking type back-up ring 5, thereby drive bearing 6 is pressed abd fixed on the collar bush 7 of motor.And because the polyimide ring of the anti-loose ring 2 of the elasticity that the utility model adopts for constituting by polyimide material; Improved elastically-deformable self recoverability of the anti-loose ring 2 of elasticity; Reduce the rate of decay of the anti-loosening property of self locking type back-up ring 5, guaranteed self-locking nut working life.
In the above-described embodiments, the anti-loose ring of elasticity has adopted the polyimide ring, and in other embodiments, the anti-loose ring of elasticity also can adopt other anti-loose rings of elasticity of harmomegathus radially such as elastic caoutchouc packing ring, elastic metallic packing ring.
In the above-described embodiments; The anti-loose ring of elasticity is fixed in the mounting groove through turning in being provided with on the mounting groove; Thereby be fixed on the end of back-up ring matrix; In other embodiments, the anti-loose ring of elasticity also can be through binder or glue fixing in mounting groove, perhaps directly is fixed on the periphery of back-up ring matrix or on the annular end face of end.
The embodiment of the self locking type back-up ring of the utility model: as shown in Figure 1, the concrete structure of this self locking type back-up ring 5 is explanation in the above-described embodiments, therefore repeats no more in the present embodiment.
Claims (10)
1. self locking type back-up ring; Comprise the back-up ring matrix; Be processed with the outside thread of the front end that is in the back-up ring matrix on the periphery of described back-up ring matrix; It is characterized in that: be fixed with on the described back-up ring matrix with the elasticity that is in outside thread radially harmomegathus afterwards of the coaxial setting of back-up ring matrix and prevent loose ring, the outside dimension of the anti-loose ring of described elasticity is between described externally threaded big footpath size and path size.
2. self locking type back-up ring according to claim 1 is characterized in that: the outside dimension of the anti-loose ring of described elasticity is greater than described externally threaded middle footpath.
3. self locking type back-up ring according to claim 1 is characterized in that: the outer circumferential face of the anti-loose ring of described elasticity is the from one end to the other side diminishing circular cone of diameter.
4. self locking type back-up ring according to claim 1; It is characterized in that: offer the mounting groove of the annular that is absorbed in to back-up ring matrix inside on the periphery wall of an end that is fixed with circlip of described back-up ring matrix, described circlip is fixed in the described mounting groove.
5. self locking type back-up ring according to claim 4; It is characterized in that: described mounting groove away from place, the outer of an externally threaded side channel wall be provided with to the inside of mounting groove plough under in turn edge, the anti-loose ring of described elasticity through turn edge in described with the anti-loose ring ring roof pressure of elasticity mounting groove near externally threaded cell wall on so that the anti-loose ring of described elasticity be fixed in the mounting groove.
6. self locking type back-up ring according to claim 5 is characterized in that: the internal diameter size of the rear end of described back-up ring matrix dwindles to the middle part from opening gradually.
7. self locking type back-up ring according to claim 1 is characterized in that: the anti-loose ring of described elasticity is the polyimide ring.
8. motor; The drive bearing that comprises installing in collar bush and the collar bush; One end of described collar bush is equiped with and is used to stop the in axial sliding Stop structure of the outer ring of drive bearing along collar bush; It is characterized in that: described Stop structure comprises the back-up ring matrix; Be processed with the outside thread of the front end that is in the back-up ring matrix on the periphery of described back-up ring matrix, be fixed with on the described back-up ring matrix with the elasticity that is in outside thread radially harmomegathus afterwards of the coaxial setting of back-up ring matrix and prevent loose ring, the outside dimension of the anti-loose ring of described elasticity is between described externally threaded big footpath size and path size.
9. motor according to claim 8 is characterized in that: the outside dimension of the anti-loose ring of described elasticity is greater than described externally threaded middle footpath.
10. motor according to claim 8; It is characterized in that: offer the mounting groove of the annular that is absorbed in to back-up ring matrix inside on the periphery wall of an end that is fixed with circlip of described back-up ring matrix, described circlip is fixed in the described mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173772 CN202579530U (en) | 2012-04-23 | 2012-04-23 | Self-locking check ring and engine using self-locking check ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173772 CN202579530U (en) | 2012-04-23 | 2012-04-23 | Self-locking check ring and engine using self-locking check ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579530U true CN202579530U (en) | 2012-12-05 |
Family
ID=47248946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220173772 Expired - Lifetime CN202579530U (en) | 2012-04-23 | 2012-04-23 | Self-locking check ring and engine using self-locking check ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579530U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015247A (en) * | 2016-07-15 | 2016-10-12 | 贵州航天精工制造有限公司 | Internal-hexagonal anti-rotation self-locking retainer ring |
| CN109210060A (en) * | 2018-09-12 | 2019-01-15 | 福建龙溪轴承(集团)股份有限公司 | A kind of elastic collar structure and a kind of inner-outer sleeve disassembly and assembly structure |
-
2012
- 2012-04-23 CN CN 201220173772 patent/CN202579530U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015247A (en) * | 2016-07-15 | 2016-10-12 | 贵州航天精工制造有限公司 | Internal-hexagonal anti-rotation self-locking retainer ring |
| CN109210060A (en) * | 2018-09-12 | 2019-01-15 | 福建龙溪轴承(集团)股份有限公司 | A kind of elastic collar structure and a kind of inner-outer sleeve disassembly and assembly structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |