CN2521431Y - Unlocking self-locking nut assembly specially for railway use - Google Patents
Unlocking self-locking nut assembly specially for railway use Download PDFInfo
- Publication number
- CN2521431Y CN2521431Y CN 01236952 CN01236952U CN2521431Y CN 2521431 Y CN2521431 Y CN 2521431Y CN 01236952 CN01236952 CN 01236952 CN 01236952 U CN01236952 U CN 01236952U CN 2521431 Y CN2521431 Y CN 2521431Y
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- self
- locking nut
- nut
- locking
- nut body
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Abstract
The utility model provides an unlocking self-locking nut assembly for railway reserve. The utility model is mainly applied in fixation of distance-limit screw rods on railway points and railway tracks and solves the problems of easily loosening of the distance-limiting screw rods of the guide track of the railway intersection. The structure of the cover nut assembly is combined by an unlocking sleeve barrel, a bolt, a self-locking nut and an assembled self-locking nut. The utility model is characterized in that the self-locking nut and the assembled self-locking nut are respectively arranged on the two ends of the bolt, and the unlocking sleeve barrel is sleeved outside the self-locking nut. Compared with the existing technique, the unlocking self-locking nut assembly for railway reserve of the utility model is characterized by reasonable design, simple structure, easy manufacture, sound dependability, sound fixed rigidity, sound versatility, repeatable usage and the like, thereby possessing very wide promotion and application value.
Description
1, technical field
The utility model relates to a kind of processing technique of machanical fastener, the special-purpose unlocking type self-locking nut of specifically a kind of railway that uses in railroad track assembly.
2, technical background
Various mechanical engineering equipment, especially often be in run up, judder state down train, automobile, aircraft, motor and the rail etc. of work, under the effect of high-intensity impulsive load and alternate load, bolt fastener on the equipment is easy to loosening and even comes off, as can not in time handling its consequence is that the lighter causes mechanical failure to stop production, weight person causes major accident, causes casualties and heavy economic losses.
People are normally fixed with cotter pin or spring washer between nut bolt in order to prevent the loosening of bolt fastener and to come off in the prior art, but the problem that in some engineering part, still can not solve nut loosening and come off.In order to solve the way that nut loosening and the problem people that come off once designed a lot of solutions, such as there being the people once to design a kind of bolt assembly, crossed a self-locking pin rod at an end of the body of bolt with auto-lock function, after being screwed in, nut carries out self-locking.Though this bolt assembly can reach the purpose of fastening self-locking, in use existing deficiency is disposable use, can't dismantle and the secondary reuse, causes user cost to improve; Having increased difficulty in the installation and maintenance, secondly is also not really desirable on structural rigidity and serviceability.
3, technology contents
The purpose of this utility model provides a kind of good rigidly, strong, the locking anticreep of serviceability and can dismantle and the special-purpose unlocking type self-locking nut of reusable railway assembly.
The purpose of this utility model realizes in the following manner, in the mesopore of plain nut, be provided with and tighten spring, be provided with two kinds of screw threads in the tapped hole of self-locking nut and combination self-locking nut, a kind of screw thread is that the screw thread on common standard screw thread and the bolt is supporting identical, another kind of screw thread is a self-locking thread, tightening spring is fixed on the self-locking thread, the cylindrical and the self-locking thread that tighten spring match, tightening the interior circle of spring and the standard thread on the bolt closely tightens, an end that tightens spring is provided with a location crotch and nut is fixed together, when nut is rotated with prescribed direction, tighten the interior circle of spring and the cylindrical of bolt and be in sliding mode, tighten the interior circle of spring with the cylindrical of bolt is in the state of tightening during with the rotation of opposite direction, realize that with this nut and locked with bolts prevent to become flexible and come off together.When needing the dismounting nut, use special use to separate lock barrel, promote to tighten the other end of spring from six aspects of self-locking nut, the people makes between the interior circle that tightens spring and the screw thread on the bolt cylindrical to produce glade plane space, just nut can be unloaded from bolt.
Accompanying drawing 1 is the overall structure schematic representation of the special-purpose unlocking type self-locking nut of railway assembly;
Accompanying drawing 2 is for the special-purpose unlocking type self-locking nut assembly self-locking nut of railway and separate A-A between the lock barrel to structural representation;
Accompanying drawing 3 is the cross-sectional view of the combination self-locking nut of the special-purpose unlocking type self-locking nut of railway assembly;
4, description of drawings
Explain below with reference to Figure of description the special-purpose unlocking type self-locking nut of railway of the present utility model assembly being done.
The special-purpose unlocking type self-locking nut of railway of the present utility model assembly, as shown in Figure 1, 2, 3, its structure is to constitute by separating lock barrel, bolt 1, self-locking nut and combination self-locking nut, self-locking nut and combination self-locking nut are arranged on the two ends of bolt 1 respectively by screw thread, the release jacket casing is in the outside of self-locking nut.
As shown in Figure 1, 2, self-locking nut is by nut body 2, standard thread 3, self-locking thread 4 and tighten spring 5 and form, self-locking thread 4 is arranged in the nut body 2 on the standard thread 3 on the circle, tighten spring 5 and be arranged in the nut body 2 among the self-locking thread 4 on the circle, tighten spring 5 and match with screw thread on the bolt 1.
Separating lock barrel is made up of hollow hexahedron 11 and sleeve 12, hollow hexahedron 11 is connected on the end of sleeve 12, the interior circle of sleeve 12 is provided with interior six sides, have on interior six sides' plane and separate locked groove 13, the position of separating locked groove 13 matches with the straight end 9 that tightens spring 5 that stretches out on the nut body 2 sidewalls six side planes.
5, mode of execution:
Its processing and fabricating of the special-purpose unlocking type self-locking nut of railway of the present utility model assembly gets final product by conventional process for machining processing shown in the by specification accompanying drawing.
The use of the special-purpose unlocking type self-locking nut of railway of the present utility model assembly is very simple and convenient, when using self-locking nut and combination self-locking nut that workpiece is carried out terminal operation, use common wrench can implement fastening, the nut body clockwise direction rotates when tightening, regular screw threads and the screw-thread fit on the bolt in the nut body on the circle play a part the plain nut bolt, in the nut body on the self-locking thread tighten spring when the nut clockwise direction rotates and the screw thread on the bolt be and be slidingly matched, can only be unidirectional rotation implement fastening, till tightening up.After the fastening end of a period, tighten on the screw thread that spring is wrapped in bolt and be the state of tightening, because tightening the crotch and the nut body of spring links together, the backward rotation moment of torsion of nut body is exactly the dynamics that tightens that tightens spring, so, the backward rotation moment of torsion of nut body is big more, and the power that tightens that tightens spring is just big more, the key point of Here it is the locking anticreep of self-locking nut.The release mechanism of separating lock barrel is exactly directly to hold by the release that promotes to tighten spring, makes artificially that to tighten spring loosening, changes sliding mode into by the original state that tightens, allow self-locking nut on bolt backward rotation until unloading.The combination self-locking nut mainly be because of activity space little can not use to separate on the equipment fastening piece of lock barrel to the self-locking nut release use.Dislock method is to use the common wrench counter-rotation to separate lock ring and realizes the release dismounting of self-locking nut.This nut assembly also can be extensive use of on other various engineering equipments, transportation and communication except being used for railway.
The special-purpose unlocking type self-locking nut of railway of the present utility model assembly is compared with prior art, have reasonable in design, simple in structure, be easy to that processing, reliability height, fastening rigidity are strong, versatility reaches characteristics such as can reuse well, thereby, have good value for applications.
Claims (5)
1. the special-purpose unlocking type self-locking nut of railway assembly, comprise and separate lock barrel, bolt, self-locking nut and combination self-locking nut, it is characterized in that self-locking nut and combination self-locking nut are arranged on the two ends of bolt respectively by screw thread, the release jacket casing is in the outside of self-locking nut.
2. the special-purpose unlocking type self-locking nut of railway according to claim 1 assembly, it is characterized in that self-locking nut is by nut body, standard thread, self-locking thread with tighten spring 5 and form, self-locking thread is arranged in the nut body on the standard thread on the circle, tighten spring and be arranged in the nut body among the self-locking thread on the circle, the screw thread that tightens on spring and the bolt matches.
3. the special-purpose unlocking type self-locking nut of railway according to claim 2 assembly, it is characterized in that nut body outer side wall six side planes are provided with positioning hole and unlock hole, the two ends that tighten spring are respectively arranged with crotch and straight end, the crotch that tightens spring is inserted in the positioning hole on the nut body outer side wall six side planes, the straight end that tightens spring is inserted in the unlock hole on the nut body outer side wall six side planes, self-locking thread tangent line on justifying in the central direction of the positioning hole on the nut body outer side wall six side planes and the nut body is perpendicular, and the self-locking thread tangent line on the central direction of unlock hole is justified with nut body is interior parallels.
4. the special-purpose unlocking type self-locking nut of railway according to claim 1 assembly, the end that it is characterized in that making up self-locking nut is provided with separates lock ring, outer side wall six side's profiles of separating lock ring match with outer side wall six side's profiles of the nut body of combination self-locking nut, separate on the outer side wall six side planes of lock ring and also be provided with positioning hole and unlock hole, direction, the position of unlock hole are corresponding on the direction, position of separating the unlock hole on the lock ring and the nut body.
5. the special-purpose unlocking type self-locking nut of railway according to claim 1 assembly, it is characterized in that separating lock barrel is made up of hexahedron and sleeve, hexahedron is welded on the end of sleeve, the interior circle of sleeve is provided with interior six sides, have on interior six sides' plane and separate locked groove, the position of separating locked groove matches with the straight end that tightens spring that stretches out on the nut body sidewall six side planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01236952 CN2521431Y (en) | 2001-05-16 | 2001-05-16 | Unlocking self-locking nut assembly specially for railway use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01236952 CN2521431Y (en) | 2001-05-16 | 2001-05-16 | Unlocking self-locking nut assembly specially for railway use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2521431Y true CN2521431Y (en) | 2002-11-20 |
Family
ID=33649833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01236952 Expired - Fee Related CN2521431Y (en) | 2001-05-16 | 2001-05-16 | Unlocking self-locking nut assembly specially for railway use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2521431Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395803A (en) * | 2009-04-17 | 2012-03-28 | 弗劳莱特控制有限公司 | Locking threaded fastener |
| CN106050881A (en) * | 2016-07-20 | 2016-10-26 | 嘉兴新亚汽车零部件有限公司 | Practical lock nut |
| CN106050882A (en) * | 2016-07-20 | 2016-10-26 | 嘉兴新亚汽车零部件有限公司 | Nut with good anti-loose effect |
| CN106089949A (en) * | 2016-07-20 | 2016-11-09 | 嘉兴新亚汽车零部件有限公司 | A kind of multi-functional stop nut |
| CN108591227A (en) * | 2018-07-17 | 2018-09-28 | 佛山市鑫锦龙机械科技有限公司 | A kind of Self-locking screw nut |
-
2001
- 2001-05-16 CN CN 01236952 patent/CN2521431Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395803A (en) * | 2009-04-17 | 2012-03-28 | 弗劳莱特控制有限公司 | Locking threaded fastener |
| CN102395803B (en) * | 2009-04-17 | 2013-08-14 | 弗劳莱特控制有限公司 | Locking threaded fastener |
| CN106050881A (en) * | 2016-07-20 | 2016-10-26 | 嘉兴新亚汽车零部件有限公司 | Practical lock nut |
| CN106050882A (en) * | 2016-07-20 | 2016-10-26 | 嘉兴新亚汽车零部件有限公司 | Nut with good anti-loose effect |
| CN106089949A (en) * | 2016-07-20 | 2016-11-09 | 嘉兴新亚汽车零部件有限公司 | A kind of multi-functional stop nut |
| CN108591227A (en) * | 2018-07-17 | 2018-09-28 | 佛山市鑫锦龙机械科技有限公司 | A kind of Self-locking screw nut |
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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 |