CN201763746U - Self-locking retaining ring for hole - Google Patents
Self-locking retaining ring for hole Download PDFInfo
- Publication number
- CN201763746U CN201763746U CN2010202887888U CN201020288788U CN201763746U CN 201763746 U CN201763746 U CN 201763746U CN 2010202887888 U CN2010202887888 U CN 2010202887888U CN 201020288788 U CN201020288788 U CN 201020288788U CN 201763746 U CN201763746 U CN 201763746U
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- CN
- China
- Prior art keywords
- hole
- self
- ring part
- ring
- locking
- 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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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model discloses a self-locking retaining ring for a hole, which comprises a retaining ring part (1). The outer cylindrical surface of the retaining ring part (1) is provided with external threads, the middle part of the retaining ring part (1) is provided with a round hole (2), the round inner wall of the round hole (2) is provided with a ring-shaped groove (4), a sunken deformation pit (3) formed through expansion or punching is arranged in the ring-shaped groove (4) outwards along the radial direction, and an external thread of the retaining ring part (1) just opposite to the sunken deformation pit (3) is provided with a local bulge which protrudes outwards and is used for producing a self-locking torque. The utility model not only has self-locking function, but also has sufficient strength and is connected firmly and reliably. Moreover, the utility model is particularly suitable for limiting the axial position of a part assembled in a hole under the large axial load.
Description
Technical field
The utility model relates to a kind of hole self-locking back-up ring, belongs to the self-locking technical field that is threaded.
Background technique
At present, after part assembled in the hole usually, it was spacing all to adopt circlip for hole that the axial position of part in the hole carried out, because the circlip for hole wall is thin, intensity is low, loses efficacy under the effect of axial impact force easily.Therefore when thrust load is big, adopt circlip for hole that the axial position of part in the hole is carried out the needs that spacing mode can not satisfy use.
Summary of the invention
The purpose of this utility model is, provide a kind of can carry out the axial position of part in the hole spacing, intensity is higher, and can bear the hole self-locking back-up ring that thrust load is impacted, thereby overcome the deficiencies in the prior art.
The technical solution of the utility model: the utility model is to constitute like this, a kind of hole of the present utility model comprises hole back-up ring part with the self-locking back-up ring, on the external cylindrical surface of hole, be provided with outside thread with the back-up ring part, middle part in the hole with the back-up ring part is provided with circular hole, on the circular inner wall of circular hole, be provided with toroidal cavity, radially outwards be provided with the depressed deformation hole that produces by enlarging or punching press in toroidal cavity, there is cambered outwards, as to be used to produce self-locking moment local crowning in the hole of locating over against the depressed deformation hole with the outside thread of back-up ring part.
Be evenly distributed with 2～8 depressed deformation holes at the inwall upper edge of above-mentioned toroidal cavity circumference, and with the outside thread on the back-up ring part outer surface cambered outwards local crowning arranged all in the hole at each place, depressed deformation hole.
On the end face of above-mentioned hole, be provided with spanner loading and unloading breach with the back-up ring part.
Owing to adopted technique scheme, the utility model is taked on back-up ring in the hole circumferentially to produce the outside protruding structure in 2～8 places at outside thread, make outside thread generation among a small circle the screw thread distortion of hole with back-up ring, when the outside thread after the distortion is screwed into the matrix part of band interior threaded hole, the internal thread of matrix part is tightly embraced outside thread by the hole back-up ring of slight deformation, thereby in making, externally threaded joint produces locking torque, the matrix part of band interior threaded hole firmly is connected with the self-locking back-up ring with the hole, can play good locking effect like this, thereby realized auto-lock function, prevented moving axially of Sealing shield ring part.Because of the hole is to be threaded with self-locking back-up ring and matrix, can guarantee that it has enough intensity to bear going out of thrust load.Therefore, the utility model compared with prior art, the utility model not only has the advantage of auto-lock function, intensity is enough, the advantage of firm and reliable connection but also have.After the utility model is particularly suitable in the hole part assembling, the axial position of part in the hole carried out spacing, and it has the occasion of bigger thrust load to use.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left TV structure schematic representation of Fig. 1;
Fig. 3 is the local structure for amplifying schematic representation of the A portion of Fig. 1;
The structural representation that Fig. 4 is connected with the matrix part when being the utility model use.
Description of reference numerals: 1-uses in the hole back-up ring part, 2-circular hole, 3-depressed deformation hole, 4-toroidal cavity, 5-matrix part, 6-breach, Assembly part in the 7-hole (axle), Assembly part in the 8-hole (bearing).
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment of the present utility model: when implementing the utility model, produce outside thread in the hole on back-up ring part 1, and the heart is made circular hole 2 therein, then on the circular inner wall of circular hole 2, make toroidal cavity 4, in toroidal cavity 4, radially outwards adopt existing enlarging mode or impact style to produce 2～8 depressed deformation holes 3, can make the hole produce local local crowning (as shown in Figure 3) by making depressed deformation hole 3 like this, can make the hole when the matrix part 5 with the band interior threaded hole is connected, produce self-locking moment (as shown in Figure 4) like this with the outside thread of back-up ring part 1 to the evagination distortion with the outside thread on back-up ring part 1 outer surface; For convenient disassembly when using the utility model, can on the end face of hole, produce 2～8 spanners and load and unload breach 6 with back-up ring part 1.
Claims (3)
1. hole self-locking back-up ring, comprise hole back-up ring part (1), it is characterized in that: on the external cylindrical surface of hole, be provided with outside thread with back-up ring part (1), be provided with circular hole (2) in the hole with the middle part of back-up ring part (1), on the circular inner wall of circular hole (2), be provided with toroidal cavity (4), radially outwards be provided with the depressed deformation hole (3) that produces by enlarging or punching press in toroidal cavity (4), there is cambered outwards, as to be used to produce self-locking moment local crowning in the hole of locating over against depressed deformation hole (3) with the outside thread of back-up ring part (1).
2. hole according to claim 1 self-locking back-up ring, it is characterized in that: be evenly distributed with 2～8 depressed deformation holes (3) at the inwall upper edge of toroidal cavity (4) circumference, and all there is cambered outwards local crowning in the hole of locating in each depressed deformation hole (3) with the outside thread on back-up ring part (1) outer surface.
3. hole according to claim 1 and 2 self-locking back-up ring is characterized in that: be provided with spanner loading and unloading breach (6) on the end face of hole with back-up ring part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202887888U CN201763746U (en) | 2010-08-12 | 2010-08-12 | Self-locking retaining ring for hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202887888U CN201763746U (en) | 2010-08-12 | 2010-08-12 | Self-locking retaining ring for hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763746U true CN201763746U (en) | 2011-03-16 |
Family
ID=43716352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202887888U Expired - Fee Related CN201763746U (en) | 2010-08-12 | 2010-08-12 | Self-locking retaining ring for hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763746U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879364A (en) * | 2015-06-05 | 2015-09-02 | 贵州航天精工制造有限公司 | Special-shaped anti-rotation self-locking retainer ring |
| 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 |
| CN106194952A (en) * | 2016-08-27 | 2016-12-07 | 泰州君灵奔腾动力机械有限公司 | A kind of durable back-up ring |
| CN107013547A (en) * | 2017-05-17 | 2017-08-04 | 贵州航天精工制造有限公司 | A kind of part without twisting self-locking method and without twisting structure self-locking thread insert |
-
2010
- 2010-08-12 CN CN2010202887888U patent/CN201763746U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879364A (en) * | 2015-06-05 | 2015-09-02 | 贵州航天精工制造有限公司 | Special-shaped anti-rotation self-locking retainer ring |
| 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 |
| CN106194952A (en) * | 2016-08-27 | 2016-12-07 | 泰州君灵奔腾动力机械有限公司 | A kind of durable back-up ring |
| CN107013547A (en) * | 2017-05-17 | 2017-08-04 | 贵州航天精工制造有限公司 | A kind of part without twisting self-locking method and without twisting structure self-locking thread insert |
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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 |
Granted publication date: 20110316 Termination date: 20150812 |
|
| EXPY | Termination of patent right or utility model |