CN206144950U - Bolt group with locking function - Google Patents
Bolt group with locking function Download PDFInfo
- Publication number
- CN206144950U CN206144950U CN201621182269.7U CN201621182269U CN206144950U CN 206144950 U CN206144950 U CN 206144950U CN 201621182269 U CN201621182269 U CN 201621182269U CN 206144950 U CN206144950 U CN 206144950U
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- sections
- nut
- hole
- steel ball
- thread section
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Abstract
The utility model provides a bolt group with locking function, includes two sections bolts, nut pretightening, locknut, two sections bolts are equipped with the screw thread section of two sections different diameters, the revolving to on the contrary of these two sections screw threads, nut pretightening and major diameter screw thread section cooperation spiro union, locknut and minor diameter screw thread section cooperation spiro union, nut pretightening's terminal surface on be equipped with the recess locknut go up and the corresponding position department of nut pretightening groove position is equipped with the through -hole, have the jackscrew at the one end spiro union of through -hole, the other end of through -hole is equipped with the steel ball, is equipped with the spring between steel ball and jackscrew. The utility model discloses with different pitchs with revolve to the nut be used in same bolt on, set up the steel ball and the recess of mutually supporting simultaneously between two nuts, after two nuts are screwed, play the effect of location. This structure can make two nuts support the damping momentum mutually under the alternating load effect to restrict mutually at the trend direction of motion, thereby the auto -lock is locking.
Description
Technical field
This utility model is related 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, and vital effect is played in mechanical connection.But handing over
Bolt connection easily produces loosening in varying load environment, so as to lose anastomosis, causes connection failure and easily causes safety
Accident.
Utility model content
The purpose of this utility model is to provide a kind of bolt group with locking functions, be it is a kind of have auto-lock function,
Autonomous locking bolt assembly, safe and reliable compared with conventional bolt, anti-loosing effect is good.
For achieving the above object, this utility model 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 it is oppositely oriented；The pre-load nut coordinates 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 is provided with the position corresponding with pre-load nut groove location on the stop nut stated, in one end of through hole top is bolted with
Silk, the other end of through hole is provided with steel ball, spring is provided 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.
Compared with prior art, the beneficial effects of the utility model are：
1) this utility model acts on the nut of different pitch and rotation direction on same bolt, while between two nuts
Steel ball and groove that setting cooperates, after two nuts, play a part of positioning.The structure can make two nuts exist
Cancel each other vibratory output under alternate load effect, 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 this utility model；
Fig. 2 is the A direction views of Fig. 1；
Fig. 3 is the B point enlarged drawings of Fig. 1.
In figure：Two sections of bolts of 1-, 2- pre-load nuts, 3- large-diameter thread sections, 4- small diameter thread sections, 5- jackscrews, 6- prevent
Loose nut, 7- springs, 8- steel balls, 9- grooves, 10- workpiece 1,11- workpiece 2.
Specific embodiment
Embodiment of the present utility model is further illustrated below in conjunction with the accompanying drawings：
See Fig. 1-Fig. 2, a kind of bolt group with locking functions, including two sections of bolts 1, pre-load nut 2, stop nuts 6,
Two sections of bolts 1 are provided with the thread segment of two sections of different-diameters, two sections of screw threads it is oppositely oriented；The pre-load nut 2 with it is 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, and through hole is provided with the position corresponding of pre-load nut groove 9 on 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 installs one end of steel ball 8 and is set to wedge-shaped opening, and the internal diameter of stop nut through hole is slightly larger
In steel ball 8, diameter is slightly smaller than the diameter of steel ball 8 at wedge-shaped opening, 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 the end face of pre-load nut 2 is engaged 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 for convenience pre-load nut 2 is passed through 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 the 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
Together).
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 is determined, be allowed to expose Workpiece length L1
For the thickness of pre-load nut 2.
2) two sections of bolts 1 are inserted in the bolt hole of connector, first screw in pre-load nut 2, pre-load nut 2 is tightened
Afterwards, then screw in stop nut 6, stop nut 6 is coordinated and is tightened；
3) steel ball 8, spring 7 be put in the through hole of stop nut 6 successively, finally jackscrew 5 screwed in through hole, in spring
During a part for steel ball 8 to be headed into the groove 9 of pre-load nut 2 under 7 elastic force effect；
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 the 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 the counter-tightened of stop nut 6, so make whole
Individual bolt group self-locking；
5) during overhaul of the equipments, bolt assembling and dismantling can be unloaded down：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 (4)
1. a kind of bolt group with locking functions, it is characterised in that described including two sections of bolts, pre-load nut, stop nuts
Two sections of bolts are provided with the thread segment of two sections of different-diameters, two sections of screw threads it is 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, in one end of through hole on described stop nut at the position corresponding with pre-load nut groove location
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621182269.7U CN206144950U (en) | 2016-11-03 | 2016-11-03 | Bolt group with locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621182269.7U CN206144950U (en) | 2016-11-03 | 2016-11-03 | Bolt group with locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206144950U true CN206144950U (en) | 2017-05-03 |
Family
ID=58624538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621182269.7U Active CN206144950U (en) | 2016-11-03 | 2016-11-03 | Bolt group with locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206144950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438650A (en) * | 2016-11-03 | 2017-02-22 | 贺湘钧 | Bolt set with anti-loosening function |
-
2016
- 2016-11-03 CN CN201621182269.7U patent/CN206144950U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438650A (en) * | 2016-11-03 | 2017-02-22 | 贺湘钧 | Bolt set with anti-loosening function |
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