CN1978112A - Screw nut with self-locking property and making method - Google Patents
Screw nut with self-locking property and making method Download PDFInfo
- Publication number
- CN1978112A CN1978112A CN 200610201288 CN200610201288A CN1978112A CN 1978112 A CN1978112 A CN 1978112A CN 200610201288 CN200610201288 CN 200610201288 CN 200610201288 A CN200610201288 A CN 200610201288A CN 1978112 A CN1978112 A CN 1978112A
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- Prior art keywords
- nut
- self
- screw
- make
- locking
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Abstract
The present invention discloses a nut with self-locking function and its production method. Said method is characterized by that said method includes the following steps: firstly, utilizing conventional method to produce general nut; then adopting an extrusion method to extrude one end of said nut and make it be deformed, so that the elastic deformation of said screw hole can produce self-locking pressure, said self-locking pressure can make said nut and screw rod be lightly connected together.
Description
Technical field
The present invention relates to a kind of nut, particularly relate to a kind of nut with self-locking property and preparation method thereof.
Background technology
Since mechanical industry was come out, nut had just produced, and nut is with a long history, has become the fastening of a kind of extensive utilization
Part is as being extensive use of invariably on the instruments such as railway, bridge, electric power, mine, aircraft, tank, automobile.But plain nut in use, and particularly under alternation vibrations and high-frequency vibration, the fastening effect of nut can weaken, thereby loose voluntarily
Take off, easily have an accident.Institute thinks and prevents that nut from getting loose, reduce potential safety hazard, method commonly used at present is, the double nut back of the body is tight, increase spring washer or on nut method such as bayonet lock solve, these methods have not only increased the consumption of material, time-consuming, and of long duration still can get loose, fastening effect is still unreliable, has potential safety hazard.
Summary of the invention
The objective of the invention is to, a kind of nut with self-locking property and preparation method thereof is provided, and the present invention carries out crimp to the one end on the basis of plain nut, and the frictional force between the screw thread after the cooperation is increased, form self-lock force, thereby make nut have the ability of connection and self-locking simultaneously.
Technical scheme of the present invention: a kind of preparation method with the self-locking property nut, comprise nut, technology is made nut routinely earlier, the method of employing extruding is pushed an end of this nut then, make the screw of this end produce distortion, thereby make the screw rod self-locking pressure that strain produced because of screw when entering into the distortion screw section of this nut that is connected with this nut that nut is closely linked together with screw rod.
A kind of nut with self-locking property, it comprises nut (1), screw (2) one ends of nut (1) are oval for the circle other end, and the screw (2) of nut (1) fades to ellipse by circle.
Compared with the prior art, the present invention is by pushing the one end on the basis of plain nut, make the screw of nut produce distortion, when the nut that will flatten is screwed into screw rod, the self-locking pressure that strain produced because of screw when screw rod enters into the distortion screw section of this nut closely links together nut with screw rod, form self-locking, make nut have switching performance and self-locking property simultaneously through such processing, improve the reliability of nut, the present invention simultaneously is simple in structure, easy to implement, safety reliable for effect, can be popularized and applied to various mechanical industries, good economic benefits and social benefit are arranged.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
The specific embodiment
Embodiment 1: as illustrated in fig. 1 and 2, technology is made nut 1 routinely earlier, the method of employing extruding is pushed an end of nut 1 then, make the screw 2 of this end nut 1 produce distortion, the screw 2 of nut 1 becomes an end and is ellipse for the circle other end, and the screw 2 of nut 1 be fade to by circle oval-shaped, in use, screw rod screws in from the end that nut 1 does not have distortion, when entering into the distortion screw section of nut 1, nut 1 will be all the more tight with contacting of screw rod, make oval-shaped screw 2 produce strain, make nut apply radial pressure, thereby will certainly increase the frictional force between screw rod and nut thread screw rod, form self-locking, make nut 1 have switching performance and self-locking property simultaneously.
Claims (2)
1. preparation method with the self-locking property nut, comprise nut, it is characterized in that: technology is made nut routinely earlier, the method of employing extruding is pushed an end of this nut then, make the screw of this end produce distortion, thereby make the screw rod self-locking pressure that strain produced because of screw when entering into the distortion screw section of this nut that is connected with this nut that nut is closely linked together with screw rod.
2. nut with self-locking property, it comprises nut (1), is characterised in that: screw (2) one ends of nut (1) for the circle other end for oval, and the screw (2) of nut (1) fades to ellipse by circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610201288 CN1978112A (en) | 2006-12-13 | 2006-12-13 | Screw nut with self-locking property and making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610201288 CN1978112A (en) | 2006-12-13 | 2006-12-13 | Screw nut with self-locking property and making method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1978112A true CN1978112A (en) | 2007-06-13 |
Family
ID=38129508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610201288 Pending CN1978112A (en) | 2006-12-13 | 2006-12-13 | Screw nut with self-locking property and making method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1978112A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744335A (en) * | 2012-07-26 | 2012-10-24 | 中国南方航空工业(集团)有限公司 | Processing method of self-locking nut necking-in position |
| CN105339686A (en) * | 2013-05-02 | 2016-02-17 | Lisi航空 | Attachment bolt for positive locking |
| CN106438648A (en) * | 2016-11-10 | 2017-02-22 | 沈阳航天三菱汽车发动机制造有限公司 | Locking nut for mounting exhaust manifold |
| CN107035753A (en) * | 2017-06-16 | 2017-08-11 | 航天精工股份有限公司 | A kind of aerospace structure 12 jiaos of self-locking nuts of anti-shearing and its processing technology |
-
2006
- 2006-12-13 CN CN 200610201288 patent/CN1978112A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744335A (en) * | 2012-07-26 | 2012-10-24 | 中国南方航空工业(集团)有限公司 | Processing method of self-locking nut necking-in position |
| CN105339686A (en) * | 2013-05-02 | 2016-02-17 | Lisi航空 | Attachment bolt for positive locking |
| CN106438648A (en) * | 2016-11-10 | 2017-02-22 | 沈阳航天三菱汽车发动机制造有限公司 | Locking nut for mounting exhaust manifold |
| CN107035753A (en) * | 2017-06-16 | 2017-08-11 | 航天精工股份有限公司 | A kind of aerospace structure 12 jiaos of self-locking nuts of anti-shearing and its processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |