CN1035685C - High-efficient anti-vibration fastening screw and fastening method - Google Patents
High-efficient anti-vibration fastening screw and fastening method Download PDFInfo
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- CN1035685C CN1035685C CN 93100030 CN93100030A CN1035685C CN 1035685 C CN1035685 C CN 1035685C CN 93100030 CN93100030 CN 93100030 CN 93100030 A CN93100030 A CN 93100030A CN 1035685 C CN1035685 C CN 1035685C
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- screw
- nut
- fastening
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Abstract
The present invention relates to an anti-vibration movable screw device and a fastening method. The present invention is characterized in that the anti-vibration movable screw device is composed of a screw rod 1, a male screw nut 2 and a female screw nut 3. Different thread intervals on the screw nut and the screw rod can lock a screw without looseness, and the screw can become tighter following vibration to avoid looseness. The structure provided by the present invention has unique and simple variation, various embodiments show that the structure can adapt to various fastening situations, and the application field is extensive.
Description
The present invention relates to a kind of fastening screw trip bolt of anti-vibration, belong to a kind of securing means of mechanical structure.
The fastening piece of mechanical structure is the important component part of machinery production, and fastening method has the locking method of riveted joint, bonding and bolt structure.Once to the fastening important function that played between member, its fastening effect was better, and can unclamp at any time in the invention of screw.Yet the shortcoming that it exists also has to be solved: the one, easily become flexible with vibrations; The 2nd, can unclamp at any time, also can unclamp during involuntary sometimes bumping.The improvement of this respect is also a lot, and the inventor finds to improve mainly concentrating on following several respects by retrieval:
One, in the improvement of aspects such as line buckle structure, these improvement can only suitably improve a part of problems such as the loose degree of shake, and screw thread also damages after too thin easily, and the processing technology of some special spiral shell shape (as trapezoidal) is more complicated also.
Two, screw is as a kind of primary component of secure component, and its shock-proof check function is the problem of being paid close attention in recent years.Add a locking pin in some privileged site punchings that need shockproof technology local with the most use to remain at screw rod, its advantage is and can punches in the time spent that shockproof effect is also good, but is unsuitable for use in enormous quantities.
Three, also have some both at home and abroad by the fastening example of structure of modification, come fastening way between screw, certain effect is arranged, but that shortcoming is a manufacture cost is higher as one screw being inserted from a side of nut, complex process, and loosen when being not easy to after fastening need pine etc.
U.S. Pat 3203460 has been introduced a kind of shockproof locking method, and it uses the tightening nut of two special constructions, and 2 and 3 twill is interlocked.Major technique design is that just to transfer interlock by the tooth that certain gradient is arranged between two mothers fastening, be skillfully constructed, but manufacture cost is higher, it is also different with standardized production technology to form trapezoidal wedge-like mould, therefore as described in the patent document, can only use in some specific occasions.
Chinese patent 91223429.6 discloses a kind of sectional loosening-proof screw nut, has solved loosening problem preferably.But its installation process is mother nut to be twisted to close bolt earlier, more secondary nut is screwed into bolt and mother nut, and the screw thread that cooperates between this installation process inevitable requirement major-minor nut and the screw thread of bolt are in the same way.
Purpose of the present invention provides a kind of anti seismic efficiency better fastening screw trip bolt one.
Anti-vibration fastening screw of the present invention, comprise screw rod (1), positive nut (2), cloudy nut (3), the sun nut (2) with cloudy nut (3) between match by screw thread (4,5), screw rod (1) passes positive nut (2) and cloudy nut (3), the pitch of screw thread (4,5) is different with the pitch of screw rod (1) screw thread, it is characterized in that: screw thread (4,5) is reciprocal with the screw thread of screw rod (1).
Anti-vibration fastening screw of the present invention because the screw thread and the screw flight that cooperate between the positive and negative nut are reciprocal, therefore, cooperates the positive and negative nut earlier during installation, is screwed into screw rod then jointly.Thisly oppositely not only broken the long-term mindset that forms in this field, and anti seismic efficiency is better, and can adapt to difference shake to vibrations.
Fig. 1 is the schematic representation of anti-vibration fastening screw of the present invention.
Fig. 2 is the schematic representation of the positive nut of anti-vibration fastening screw of the present invention, and 4 is male screw portion among the figure.
Fig. 3 is the schematic representation of the cloudy nut of anti-vibration fastening screw of the present invention, and 5 is the female thread part among the figure.
Among Fig. 1,1 is screw rod, and 2 is positive nut, and 3 is cloudy nut, the combination of two negative and positive assemblies The shockproof requirements of the various situations of mode root a tree name and deciding. Its superiority is in the vibrations situation, negative and positive Two nuts step up with loosening, have effectively prevented loosening; Screw thread needn't be detained under identical requirement Line is too thin, has reduced the requirement of material and has reduced procedure and difficulty.
Effect of the present invention is fairly obvious on fastening degree, also can pass through the operation handlebar nut location Fix fully, can not become flexible because being not intended to knock over, can unclamp again after untiing this operation, it is fastening Method is very convenient, only need make the angle of any one rotation in positive nut 2 or the cloudy nut 3, Can form the displacement of negative and positive nut, screw fastening.
Locking method involved in the present invention and device have a series of embodiment:
Embodiment one: the screw thread among the figure on external screw thread 4 and the screw rod 1 is equidirectional; Female thread 5 also with the line of cloudy nut (3) to identical.Line on external screw thread 4 and the bar 1 is apart from can be different.
Embodiment two: the screw thread among the figure on external screw thread 4 and the screw rod 1 is reciprocal; The line of female thread 5 and cloudy nut (3) is to opposite.Line on external screw thread 4 and the bar is apart from can be different.
Embodiment three: in Fig. 1, can add Upper gasket between positive nut 2 and the cloudy nut 3, to resistance to wear and the commensurate structure requirement.
Embodiment four: the positive nut 2 among Fig. 1 can be different with the material of cloudy nut 3.Use plastics such as positive nut 2 and 3 one on cloudy nut, another also can be loosening to prevent that the temperature variation factor from causing with different altitude temperature difference effects trend materials with metal etc.
Embodiment five: positive nut 2 among Fig. 1 and cloudy nut 3 can be engine housing or parts, and the part body originally has worm structure on one's body.
The present invention field that is widely used, (as fastening rail and fastening Transport Machinery part) more shows the effect of its shock-proof check in some specific occasion, and its practical value is conspicuous.
Claims (4)
1, a kind of anti-vibration fastening screw, comprise screw rod (1), positive nut (2), cloudy nut (3), the sun nut (2) with cloudy nut (3) between match by screw thread (4,5), screw rod (1) passes positive nut (2) and cloudy nut (3), the pitch of screw thread (4,5) is different with the pitch of screw rod (1) screw thread, it is characterized in that: screw thread (4,5) is reciprocal with the screw thread of screw rod (1).
2, anti-vibration fastening screw as claimed in claim 1 is characterized in that: between positive nut (2) and cloudy nut (3) pad is arranged.
3, anti-vibration fastening screw as claimed in claim 1 is characterized in that: positive nut (2) and cloudy nut (3) are made with different materials.
4, anti-vibration fastening screw as claimed in claim 3 is characterized in that: use plastics for one in positive nut (2) and the cloudy nut (3), another is made with metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93100030 CN1035685C (en) | 1993-01-03 | 1993-01-03 | High-efficient anti-vibration fastening screw and fastening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93100030 CN1035685C (en) | 1993-01-03 | 1993-01-03 | High-efficient anti-vibration fastening screw and fastening method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1090022A CN1090022A (en) | 1994-07-27 |
| CN1035685C true CN1035685C (en) | 1997-08-20 |
Family
ID=4982752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93100030 Expired - Fee Related CN1035685C (en) | 1993-01-03 | 1993-01-03 | High-efficient anti-vibration fastening screw and fastening method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1035685C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055748C (en) * | 1996-04-10 | 2000-08-23 | 严明 | Self-locking energy-storage device for bolt |
| WO2017020286A1 (en) * | 2015-08-06 | 2017-02-09 | 杨东佐 | Fastening nut, rotation-stopping structure, fastening connector component and structure, mounting and removing methods, track structure, crankshaft connecting rod mechanism, frame connecting apparatus, frame connecting method, connecting shaft apparatus, wheel framework, bicycle ball stopper, ball stopper apparatus, and wheel frame |
| CN107435679A (en) * | 2017-08-03 | 2017-12-05 | 安徽奥睿德科技发展有限公司 | A kind of para-seismic support screw rod reinforcer |
| CN108150513A (en) * | 2017-12-21 | 2018-06-12 | 广东中远海运重工有限公司 | A kind of loss of weight fixing device of Drilling derrick fall arrest |
-
1993
- 1993-01-03 CN CN 93100030 patent/CN1035685C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1090022A (en) | 1994-07-27 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |