CN106438650A - Bolt set with anti-loosening function - Google Patents
Bolt set with anti-loosening function Download PDFInfo
- Publication number
- CN106438650A CN106438650A CN201610971635.5A CN201610971635A CN106438650A CN 106438650 A CN106438650 A CN 106438650A CN 201610971635 A CN201610971635 A CN 201610971635A CN 106438650 A CN106438650 A CN 106438650A
- Authority
- CN
- China
- Prior art keywords
- nut
- hole
- steel ball
- load nut
- sections
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 230000036316 preload Effects 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 3
- 208000031481 Pathologic Constriction Diseases 0.000 claims 1
- 210000001215 vagina Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 230000013011 mating Effects 0.000 description 2
- 230000003872 anastomosis Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
- F16B39/16—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts in which the screw-thread of the locknut differs from that of the nut
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to a bolt set with an anti-loosening function. The bolt set comprises a two-section bolt, a pre-tightening nut and an anti-loosening nut. Two threaded sections which are different in diameter are arranged on the two-section bolt, and the rotating directions of the two sections of threads are opposite to each other; the pre-tightening nut is in matched screw joint with the large-diameter threaded section, and the anti-loosening nut is in matched screw joint with the small-diameter threaded section; a groove is formed in the end surface of the pre-tightening nut, a through hole is formed in a position, corresponding to the groove position of the pre-tightening nut, of the anti-loosening nut, a top thread is in screw joint with one end of the through hole, a steel ball is arranged at the other end of the through hole, and a spring is arranged between the steel ball and the top thread. By acting the nuts which are different in pitch and rotating direction on the same bolt and arranging the steel ball and the groove which are matched with each other between the two nuts, a locating role is played after the two nuts are screwed. According to the structure, the two nuts can counteract the vibration quantities of each other under alternating load action and restrict each other in a trend movement direction so as to be self-locked to prevent looseness.
Description
Technical field
The present invention relates to mechanical erection field, more particularly to a kind of bolt group with locking functions.
Background technology
Bolt is a kind of common components of more than one piece connection, plays vital effect in mechanical connection.But handing over
In varying load environment, bolt connection easily produces loosening, so as to lose anastomosis, causes connection failure and easily causes safety
Accident.
Content of the invention
It is an object of the invention to provide a kind of bolt group with locking functions, it is a kind of there is auto-lock function, autonomous
Locking bolt assembly, safe and reliable compared with conventional bolt, anti-loosing effect is good.
For achieving the above object, the present invention employs the following technical solutions realization：
A kind of bolt group with locking functions, including two sections of bolts, pre-load nut, stop nuts, two sections of bolts
Be provided with the thread segment of two sections of different-diameters, two sections of screw threads oppositely oriented；The pre-load nut is coordinated with large-diameter thread section
It is spirally connected, the stop nut is spirally connected with small diameter thread section cooperation；Groove is provided with the end face of described pre-load nut, in institute
Through hole being provided with the position corresponding with pre-load nut groove location on the stop nut that states, top is bolted with one end of through hole
Silk, the other end of through hole is provided with steel ball, is provided with spring between steel ball and jackscrew.
The screw thread of the large-diameter thread section is coarse thread.
The screw thread of the small diameter thread section is fine thread.
Groove on the pre-load nut is uniform in a circumferential direction.
A kind of using method of the bolt group with locking functions, concrete grammar is as follows：
1) length of two sections of bolts is determined according to the thickness of connector；
2) two sections of bolts are inserted in the bolt hole of connector, first pre-load nut are screwed in, after pre-load nut is tightened, then
Stop nut is screwed in, stop nut is coordinated and is tightened；
3) successively steel ball, spring being put in the through hole of stop nut, finally jackscrew is screwed in through hole, in the bullet of spring
Under power effect, a part for steel ball is headed in the groove of pre-load nut；
4) during equipment operation, the vibrations of equipment can make pre-load nut produce the movement tendency for loosening revolution, by
Screw for reverse thread between pre-load nut and stop nut, therefore steel ball and groove between pre-load nut and stop nut
Mating reaction power under, the gyration trend of pre-load nut can drive stop nut counter-tightened, so make whole bolt group
Self-locking；
5), during overhaul of the equipments, bolt group can be disassembled：First jackscrew is screwed, spring is taken out, Ran Houyi
Secondary screw lower stop nut and pre-load nut.
Compared with prior art, the invention has the beneficial effects as follows：
1) different pitch are acted on same bolt by the present invention with the nut of rotation direction, while arranging between two nuts
The steel ball for cooperating and groove, after two nut, play a part of positioning.The structure can make two nuts in alternation
Cancel each other under load effect vibratory output, and conditions each other in the trend direction of motion, so as to self-locking anti-loosing.
2) large-diameter thread section is that coarse thread plays a part of to increase pretension intensity, and small diameter thread section is fine thread
With auto-lock function, play two effects of locking pretension.
Description of the drawings
Fig. 1 is a kind of structural representation of the bolt group with locking functions of the present invention；
Fig. 2 is the A direction view of Fig. 1；
Fig. 3 is the B point enlarged drawing of Fig. 1.
In figure：Two sections of bolts of 1-, 2- pre-load nut, 3- large-diameter thread section, 4- small diameter thread section, 5- jackscrew, 6- prevent
Loose nut, 7- spring, 8- steel ball, 9- groove, 10- workpiece 1,11- workpiece 2.
Specific embodiment
Below in conjunction with the accompanying drawings embodiments of the present invention are further illustrated：
See Fig. 1-Fig. 2, a kind of bolt group with locking functions, including two sections of bolts 1, pre-load nut 2, stop nut 6,
Two sections of bolts 1 are provided with the thread segment of two sections of different-diameters, two sections of screw threads oppositely oriented；The pre-load nut 2 with big
The cooperation of diameter thread section 3 is spirally connected, and the stop nut 6 is spirally connected with the cooperation of small diameter thread section 4；In described pre-load nut 2
End face is provided with groove 9, is provided with through hole with 9 position corresponding of pre-load nut groove on the described stop nut 6,
Jackscrew 5 is bolted with one end of through hole, the other end of through hole is provided with steel ball 8, and spring 7 is provided between steel ball 8 and jackscrew 5.
See Fig. 3, stop nut through hole is installed one end of steel ball 8 and wedge-shaped opening is set to, and the internal diameter of stop nut through hole is slightly larger
In steel ball 8, at wedge-shaped opening, diameter is slightly smaller than 8 diameter of steel ball, and after loading steel ball 8, under the pressuring action of spring 7, steel ball 8 exposes
A part.The groove 9 for being arranged on 2 end face of pre-load nut is matched with steel ball 8.The reset length of spring 7 should be longer than the length of through hole
Degree, is easy to take out.
It is that pre-load nut 2 is passed through for convenience that two sections of bolts 1 are designed as two-stage diameter.
The screw thread of the large-diameter thread section 3 is coarse thread.
The screw thread of the small diameter thread section 4 is fine thread.
Groove 9 on the pre-load nut 2 is uniform in a circumferential direction.In order to match with groove 9 on pre-load nut 2
Close, the position of through hole (the relevant parameter phase such as pitch-row, quantity consistent with the position of pre-load nut upper groove 9 on stop nut 6
With).
A kind of using method of the bolt group with locking functions, concrete grammar is as follows：
1) length of two sections of bolts 1 is determined according to the thickness of connector；
According to gross thickness L of two workpiece 10,11, the length of large-diameter thread section 3 being determined, is allowed to expose Workpiece length L1
Thickness for pre-load nut 2.
2) two sections of bolts 1 are inserted in the bolt hole of connector, first pre-load nut 2 are screwed in, pre-load nut 2 is tightened
Afterwards, then stop nut 6 is screwed in, stop nut 6 is coordinated and is tightened；
3) successively steel ball 8, spring 7 being put in the through hole of stop nut 6, finally jackscrew 5 is screwed in through hole, in spring
Under 7 elastic force effect, a part for steel ball 8 is headed in the groove 9 of pre-load nut 2；
4) during equipment operation, the vibrations of equipment can make pre-load nut 2 produce the movement tendency for loosening revolution, by
Screw for reverse thread between pre-load nut 2 and stop nut 6, therefore steel ball 8 between pre-load nut 2 and stop nut 6
Under the mating reaction power of groove 9, the gyration trend of pre-load nut 2 can drive 6 counter-tightened of stop nut, so make whole
Individual bolt group self-locking；
5), during overhaul of the equipments, bolt group can be disassembled：First jackscrew 5 is screwed, spring 7 is taken out, then
Lower stop nut 6 and pre-load nut 2 are screwed successively.Jackscrew can adopt dormant bolt.
Claims (5)
1. a kind of bolt group with locking functions, it is characterised in that including two sections of bolts, pre-load nut, stop nuts, described
Two sections of bolts are provided with the thread segment of two sections of different-diameters, two sections of screw threads oppositely oriented；The pre-load nut and major diameter spiral shell
The cooperation of stricture of vagina section is spirally connected, and the stop nut is spirally connected with small diameter thread section cooperation；It is provided with the end face of described pre-load nut
Groove, is provided with through hole at the position corresponding with pre-load nut groove location, in one end of through hole on described stop nut
Jackscrew is bolted with, the other end of through hole is provided with steel ball, spring is provided between steel ball and jackscrew.
2. a kind of bolt group with locking functions according to claim 1, it is characterised in that the large-diameter thread section
Screw thread be coarse thread.
3. a kind of bolt group with locking functions according to claim 1, it is characterised in that the small diameter thread section
Screw thread be fine thread.
4. a kind of bolt group with locking functions according to claim 1, it is characterised in that on the pre-load nut
Groove is uniform in a circumferential direction.
5. a kind of using method of the bolt group with locking functions as claimed in claim 1, it is characterised in that concrete grammar
As follows：
1) length of two sections of bolts is determined according to the thickness of connector；
2) two sections of bolts are inserted in the bolt hole of connector, first pre-load nut are screwed in, after pre-load nut is tightened, then screw in
Stop nut, stop nut is coordinated and is tightened；
3) successively steel ball, spring being put in the through hole of stop nut, finally jackscrew is screwed in through hole, makees in the elastic force of spring
With lower, a part for steel ball is headed in the groove of pre-load nut；
4) during equipment operation, the vibrations of equipment can make pre-load nut produce the movement tendency for loosening revolution, due to pre-
Screw for reverse thread between jack panel and stop nut, therefore the joining of steel ball and groove between pre-load nut and stop nut
Under joint force, the gyration trend of pre-load nut can drive stop nut counter-tightened, so make whole bolt group self-locking
Tightly；
5), during overhaul of the equipments, bolt group can be disassembled：First jackscrew is screwed, spring is taken out, then revolve successively
Back out stop nut and pre-load nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610971635.5A CN106438650A (en) | 2016-11-03 | 2016-11-03 | Bolt set with anti-loosening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610971635.5A CN106438650A (en) | 2016-11-03 | 2016-11-03 | Bolt set with anti-loosening function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438650A true CN106438650A (en) | 2017-02-22 |
Family
ID=58180891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610971635.5A Pending CN106438650A (en) | 2016-11-03 | 2016-11-03 | Bolt set with anti-loosening function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438650A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119511A (en) * | 2018-02-19 | 2018-06-05 | 何长青 | A kind of double nut reverse thread anti-loosing fixing device |
| CN108412837A (en) * | 2018-05-16 | 2018-08-17 | 无锡市威特机械有限公司 | Part retaining mechanism in a kind of extruder |
| CN108591213A (en) * | 2018-05-02 | 2018-09-28 | 成都明杰科技有限公司 | Enhance the upset bolt of friction self-locking intensity |
| CN108644212A (en) * | 2018-07-24 | 2018-10-12 | 合肥仨力机械制造有限公司 | A kind of screw rod fastener with backing stop structure |
| CN109340239A (en) * | 2018-12-06 | 2019-02-15 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of dismountable anti-theft bolt component for iron tower of power transmission line |
| CN109838445A (en) * | 2019-03-25 | 2019-06-04 | 南京工业大学 | Screw thread anti-loosening structure for locking combined nut and design method |
| CN110452720A (en) * | 2019-08-29 | 2019-11-15 | 济钢集团国际工程技术有限公司 | Dry coke quenching automatic station-keeping system executing agency is locking and stroke calibrating installation |
| CN111577740A (en) * | 2020-06-11 | 2020-08-25 | 邬惠林 | Composite double-nut anti-loose bolt |
| CN113638956A (en) * | 2021-08-13 | 2021-11-12 | 浙江富鑫五金科技股份有限公司 | Welding nut with impact-resistant pressure-release function for fixing automobile safety belt and use method |
| CN114151433A (en) * | 2021-12-31 | 2022-03-08 | 宝钢钢构有限公司 | Double-nut self-locking check bolt |
| CN114992215A (en) * | 2022-07-19 | 2022-09-02 | 信阳航钛精密科技有限公司 | Lock catch fastening device for high-speed rail contact network |
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| CN2208635Y (en) * | 1995-02-16 | 1995-09-27 | 宁北胜 | Check bolt |
| CN201284783Y (en) * | 2008-11-07 | 2009-08-05 | 王长伟 | Anti-loosening self-locking bolt and anti-loosening self-locking nut |
| CN202165372U (en) * | 2011-08-09 | 2012-03-14 | 鞍钢集团矿业公司 | Threaded positioning and locking device |
| CN104863952A (en) * | 2015-05-28 | 2015-08-26 | 国网山东省电力公司经济技术研究院 | Self-locking fastening set |
| CN205478840U (en) * | 2016-04-17 | 2016-08-17 | 魏仕槚 | Locking force adjustable locknut |
| CN206144950U (en) * | 2016-11-03 | 2017-05-03 | 贺湘钧 | Bolt group with locking function |
-
2016
- 2016-11-03 CN CN201610971635.5A patent/CN106438650A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2208635Y (en) * | 1995-02-16 | 1995-09-27 | 宁北胜 | Check bolt |
| CN201284783Y (en) * | 2008-11-07 | 2009-08-05 | 王长伟 | Anti-loosening self-locking bolt and anti-loosening self-locking nut |
| CN202165372U (en) * | 2011-08-09 | 2012-03-14 | 鞍钢集团矿业公司 | Threaded positioning and locking device |
| CN104863952A (en) * | 2015-05-28 | 2015-08-26 | 国网山东省电力公司经济技术研究院 | Self-locking fastening set |
| CN205478840U (en) * | 2016-04-17 | 2016-08-17 | 魏仕槚 | Locking force adjustable locknut |
| CN206144950U (en) * | 2016-11-03 | 2017-05-03 | 贺湘钧 | Bolt group with locking function |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119511A (en) * | 2018-02-19 | 2018-06-05 | 何长青 | A kind of double nut reverse thread anti-loosing fixing device |
| CN108591213A (en) * | 2018-05-02 | 2018-09-28 | 成都明杰科技有限公司 | Enhance the upset bolt of friction self-locking intensity |
| CN108412837A (en) * | 2018-05-16 | 2018-08-17 | 无锡市威特机械有限公司 | Part retaining mechanism in a kind of extruder |
| CN108644212A (en) * | 2018-07-24 | 2018-10-12 | 合肥仨力机械制造有限公司 | A kind of screw rod fastener with backing stop structure |
| CN109340239B (en) * | 2018-12-06 | 2023-08-15 | 国网辽宁省电力有限公司鞍山供电公司 | Detachable antitheft bolt assembly for transmission line iron tower |
| CN109340239A (en) * | 2018-12-06 | 2019-02-15 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of dismountable anti-theft bolt component for iron tower of power transmission line |
| CN109838445A (en) * | 2019-03-25 | 2019-06-04 | 南京工业大学 | Screw thread anti-loosening structure for locking combined nut and design method |
| CN110452720A (en) * | 2019-08-29 | 2019-11-15 | 济钢集团国际工程技术有限公司 | Dry coke quenching automatic station-keeping system executing agency is locking and stroke calibrating installation |
| CN110452720B (en) * | 2019-08-29 | 2024-04-09 | 济钢集团国际工程技术有限公司 | Anti-loosening and travel calibrating device for execution mechanism of automatic dry quenching positioning system |
| CN111577740A (en) * | 2020-06-11 | 2020-08-25 | 邬惠林 | Composite double-nut anti-loose bolt |
| CN113638956A (en) * | 2021-08-13 | 2021-11-12 | 浙江富鑫五金科技股份有限公司 | Welding nut with impact-resistant pressure-release function for fixing automobile safety belt and use method |
| CN114151433A (en) * | 2021-12-31 | 2022-03-08 | 宝钢钢构有限公司 | Double-nut self-locking check bolt |
| CN114992215A (en) * | 2022-07-19 | 2022-09-02 | 信阳航钛精密科技有限公司 | Lock catch fastening device for high-speed rail contact network |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |