CN108071651A - A kind of screw-nut integration self-locking mechanism - Google Patents
A kind of screw-nut integration self-locking mechanism Download PDFInfo
- Publication number
- CN108071651A CN108071651A CN201711230991.2A CN201711230991A CN108071651A CN 108071651 A CN108071651 A CN 108071651A CN 201711230991 A CN201711230991 A CN 201711230991A CN 108071651 A CN108071651 A CN 108071651A
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- CN
- China
- Prior art keywords
- screw
- nut
- hole
- sliding block
- plate
- 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
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 230000010354 integration Effects 0.000 title claims abstract description 16
- 230000006978 adaptation Effects 0.000 claims description 6
- 210000005069 ears Anatomy 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged 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
- F16B39/04—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
Abstract
The present invention provides a kind of screw-nut integration self-locking mechanisms, are related to mechanical fastener constructions design field.The mechanism includes screw, and the bottom section of the screw is polyhedron, and is extended with through hole from the end to nut direction；Knock pin is arranged in the through hole；Plate nut coordinates with the screw thread；Component, it is fixedly installed spring spool, the spring spool is provided with blind hole to plate nut direction, the sliding block being axially moved along blind hole is provided in the blind hole, spring is provided between the sliding block and the blind-hole bottom, the sliding block is provided with the polyhedron groove to match with the screw multiaspect column away from the one side of spring, and the part that the knock pin protrudes the through hole can separate the sliding block with the screw.The invention realizes the function of unlocking/unlock under the action of the spring by the way of knock pin, and self-locking/unlocking mode is fast reliable, and equipment is enable quickly to be maintained.
Description
Technical field
The present invention relates to mechanical fastener constructions design fields, and in particular to a kind of screw-nut integration self-locking mechanism.
Background technology
There is currently self-locking nut be usually by deformation generate frictional force prevent nut loosening, main species has height
Intensity self-locking nut, nylon jacket self-locking nut etc., operation principle is essentially identical, is all the deformation by screw thread or nylon jacket,
The frictional force more than general nut is generated between screw bolt and nut, still, the component of self-locking nut is used on current helicopter
Due to the demand of every Inspection and maintenance work before and after flight, it is often necessary to dismantle radome fairing and lid repeatedly, work as forward pass using
In the case of the self-locking nut of system, the thorough deformation of screw thread or nylon jacket is caused to lose after often being removed and installed at four to five times
On the one hand effect improves the cost that helicopter uses, on the other hand also reduce the Fast-Maintenance of helicopter.
The content of the invention
To solve the above-mentioned problems, the present invention provides a kind of bolt and nut self-locking mechanism, by knock pin, bolt, ears
Supporting plate, symmetrical plate nut, spring spool, spring, ejection pin socket, cylinder fixed pin, interior hexagonal cylinder composition, pass through fixation
Cylinder in the cooperation of hexagonal cylinder and bolt end hexagonal double-ended bolt reach self-locking and nonexpondable purpose, solve on helicopter
The problem of self-locking nut access times are limited so as to meet aerial mission demand, ensures the Fast-Maintenance of helicopter.
Plate nut by screw is fixed on component, mainly included by screw-nut integration self-locking mechanism of the present invention：
Screw, the bottom section of the screw is polyhedron, and is extended with through hole from the end to nut direction；
Knock pin is arranged in the through hole, when the nut grafting screwdriver of the screw, the screwdriver top pressure institute
One end of knock pin is stated, and the other end of the knock pin can be made to protrude the through hole；
Plate nut coordinates with the screw thread；
Component, is fixedly installed spring spool, and the spring spool is provided with blind hole to plate nut direction, in the blind hole
The sliding block being axially moved along blind hole is provided with, spring is provided between the sliding block and the blind-hole bottom, the sliding block deviates from
The one side of spring is provided with the polyhedron groove to match with the screw multiaspect column, and the knock pin protrudes the portion of the through hole
Divide and the sliding block can be separated with the screw.
Preferably, the polyhedron is hexahedron.
Preferably, the plate nut has the first plate extended to side, and the spring spool has to be prolonged to side
The second plate stretched, first plate are bonded with second plate, and the screw-nut integration self-locking mechanism further includes ears support
Plate, for fixing first plate and second plate.
Preferably, the sliding block sets the cylinder fixed pin of oriented spring spool sidewall direction extension, the spring pocket
Cylinder has the guiding groove in axial direction opened up, and spring spool is stretched out in one end of the cylinder fixed pin from the guiding groove, and
It can be moved along the guiding groove direction.
Preferably, the sliding block outer wall be provided with the matched polygonized structure of spring spool inner wall, with described in limitation
Sliding block is relative to the rotation of the spring spool.
Preferably, the through hole of the screw has step, forms the smaller epimere of internal diameter and the larger hypomere of internal diameter,
The knock pin has the smaller first segment of outer diameter, and adaptation is mounted on the epimere and tool with smaller internal diameter of the through hole
There is the second segment that outer diameter is larger, adaptation is mounted on the hypomere with larger interior diameter of the through hole, the epimere internal diameter of the through hole
Less than the second segment outer diameter of the knock pin.
The advantage of the invention is that：
1) this invention realizes the function of unlocking/unlock under the action of the spring by the way of knock pin, using interior
The mode that Hexagonal jacket coordinates with bolt end is locked, and does not destroy component, self-locking/unlocking mode is fast reliable, ensure that equipment
Fast speed maintainability and security；
2) this invention vibrationproof ability is strong, stable structure, reliability are high, and usable range is wide；
3) reduce the consume of standard component, reduce the maintenance cost of equipment.
Description of the drawings
Fig. 1 is the front view according to a preferred embodiment of screw-nut integration self-locking mechanism of the present invention.
Fig. 2 is the A-A sectional views of embodiment illustrated in fig. 1 of the present invention.
Fig. 3 is the stereogram of embodiment illustrated in fig. 1 of the present invention.
Wherein, 1 is knock pin, and 2 be screw, and 3 be ears supporting plate, and 4 be plate nut, and 5 be spring spool, and 6 be spring, 7
To eject pin socket, 8 be fixed pin, and 9 be sliding block.
Specific embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or there is same or like element.Described embodiment is the present invention
Part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without creative efforts, belong to the scope of protection of the invention.Under
Face is described in detail the embodiment of the present invention with reference to attached drawing.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown, such as " clockwise ", " counterclockwise ", " upward ", " downward " etc. are for only for ease of and describe this hair
It is bright to have specific orientation, with the device for simplifying description rather than instruction or hint meaning or element with specific orientation
Construction and operation, therefore it is not intended that limiting the scope of the invention.
The present invention provides a kind of screw-nut integration self-locking mechanisms, and plate nut is fixed on component by screw
On, referring to figs. 1 to Fig. 3, mainly include：
Screw 2, the bottom section of the screw is polyhedron, and is extended with through hole from the end to nut direction；
Knock pin 1 is arranged in the through hole, when the nut grafting screwdriver of the screw 2, the screwdriver top pressure
One end of the knock pin 1, and the other end of the knock pin 1 can be made to protrude the through hole；
Plate nut 4, with 2 thread fitting of screw；
Component is fixedly installed spring spool 5, and the spring spool 5 is provided with blind hole to 4 direction of plate nut, described blind
The sliding block 9 being axially moved along blind hole is provided in hole, spring 6, the cunning are provided between the sliding block 9 and the blind-hole bottom
Block 9 is provided with the polyhedron groove to match with the screw multiaspect column away from the one side of spring 6, and the knock pin 1 protrudes institute
The part for stating through hole can separate the sliding block with the screw.
In the present embodiment, the polyhedron is hexahedron.
The plate nut 4 has the first plate extended to side, and the spring spool 5 has second extended to side
Plate, first plate are bonded with second plate, and the screw-nut integration self-locking mechanism further includes ears supporting plate 3, is used for
Fixed first plate and second plate, with reference to figure 1 and Fig. 3, plate nut 4 is ears tray nut, and both ends are curved to centre
Song forms auricle, is crimped on the both sides of the first plate and the second plate respectively, afterwards for example can be by screw by plate nut, the
One plate and the second plate interfix.
In the present embodiment, the sliding block 9 sets the cylinder fixed pin 8 of oriented 5 sidewall direction of spring spool extension, the bullet
Spring sleeve 5 has the guiding groove in axial direction opened up, and spring pocket is stretched out in one end of the cylinder fixed pin 8 from the guiding groove
Cylinder 5, and can be moved along the guiding groove direction.
In the present embodiment, 9 outer wall of sliding block be provided with the matched polygonized structure of 5 inner wall of spring spool, with limitation
The sliding block 9 is relative to the rotation of the spring spool 5.
In the present embodiment, the through hole of the screw 2 has step, with reference to figure 2, forms the smaller epimere of internal diameter and interior
The larger hypomere in footpath, the knock pin 1 have the smaller first segment of outer diameter, and adaptation has smaller internal diameter mounted on the through hole
Epimere and with the larger second segment of outer diameter, adaptation mounted on the through hole the hypomere with larger interior diameter, it is described to lead to
The epimere internal diameter in hole is less than the second segment outer diameter of the knock pin 1.Knock pin 1 is coordinated anti-by convex shoulder and the bolt-center hole shaft shoulder
Only knock pin 1 skids off screw.In the present embodiment, ejection pin socket 7 is further included, ejection pin socket 7 is struck by interference fit type
Enter 2 bottom of screw, can so ensure that knock pin 1 is moved on 2 centre bore axis of screw and do not skidded off.
Upper member is screwed in lower member nut, under the action of straight screwdriver, knock pin 1 protrudes 2 end of screw, can
By sliding block 9 downwardly against so as to tightening screw 2, when clamp load torque reaches required value, release screwdriver, knock pin is in spring 6
In lower 2 hole of retraction screw of effect, while contact surface is contacted with 2 end hex surface of screw on sliding block 9, plays similar die nut
Effect, sliding block 9 is fixed on by cylinder fixed pin 8 in spring spool 5 cannot be rotated along axial-movement, so as to play lock
The effect of bolt is fastened, when needing to screw out bolt, knock pin 1 only need to be pushed down using straight screwdriver, ejection slider 9 makes
It obtains 2 end hex surface of screw and departs from sliding block 9, achieve the purpose that unlock.
Key point of the present invention：
1) function of unlocking/unlock is realized under the action of spring 6 by way of knock pin 1, using sliding block 9 in bullet
The lower mode with the cooperation of 2 end of screw of spring effect is locked, and is not destroyed component, can be repeatedly used, convenient and efficient；
2) sliding block 9 is fixed in spring spool 5 by cylinder fixed pin 8 in lower member, achievees the purpose that self-locking mechanism
For key point of the present invention；
3) structure type being dexterously embedded in lower member by cylinder fixed pin 8 in sliding block 9, makes sliding block 9, spring pocket
Cylinder 5, knock pin 1 are coaxial, the function of unlocking/unlock so as to fulfill knock pin 1 (mosaic mode may also be cross and herringbone).
The advantage of the invention is that：
1) this invention realizes the function of unlocking/unlock under the action of the spring by the way of knock pin, using interior
The mode that Hexagonal jacket coordinates with bolt end is locked, and does not destroy component, self-locking/unlocking mode is fast reliable, ensure that equipment
Fast speed maintainability and security；
2) this invention vibrationproof ability is strong, stable structure, reliability are high, and usable range is wide；
3) reduce the consume of standard component, reduce the maintenance cost of equipment.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Pipe is with reference to the foregoing embodiments described in detail the present invention, it will be understood by those of ordinary skill in the art that：It is still
It can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is equally replaced
It changes；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the essence of various embodiments of the present invention technical solution
God and scope.
Claims (6)
1. plate nut is fixed on component by a kind of screw-nut integration self-locking mechanism by screw, which is characterized in that bag
It includes：
Screw (2), the bottom section of the screw is polyhedron, and is extended with through hole from the end to nut direction；
Knock pin (1), is arranged in the through hole, when the nut grafting screwdriver of the screw (2), the screwdriver top pressure
One end of the knock pin (1), and the other end of the knock pin (1) can be made to protrude the through hole；
Plate nut (4), with the screw (2) thread fitting；
Component is fixedly installed spring spool (5), and the spring spool (5) is provided with blind hole to plate nut (4) direction, described
The sliding block (9) being axially moved along blind hole is provided in blind hole, spring is provided between the sliding block (9) and the blind-hole bottom
(6), the sliding block (9) is provided with the polyhedron groove to match with the screw multiaspect column away from the one side of spring (6), described
The part that knock pin (1) protrudes the through hole can separate the sliding block with the screw.
2. screw-nut integration self-locking mechanism as described in claim 1, which is characterized in that the polyhedron is hexahedron.
3. screw-nut integration self-locking mechanism as described in claim 1, which is characterized in that the plate nut (4) has
The first plate extended to side, the spring spool (5) have the second plate extended to side, first plate and described second
Plate is bonded, and the screw-nut integration self-locking mechanism further includes ears supporting plate (3), for fixing first plate and described the
Two plates.
4. screw-nut integration self-locking mechanism as described in claim 1, which is characterized in that the sliding block (9) sets oriented
The cylinder fixed pin (8) of spring spool (5) sidewall direction extension, the spring spool (5) have what is in axial direction opened up to draw
Spring spool (5) is stretched out in guide groove, one end of the cylinder fixed pin (8) from the guiding groove, and can be along the guiding groove side
To movement.
5. screw-nut integration self-locking mechanism as described in claim 1, which is characterized in that sliding block (9) outer wall is set
Have with the matched polygonized structure of spring spool (5) inner wall, with limit the relatively described spring spool (5) of the sliding block (9) turn
It is dynamic.
6. screw-nut integration self-locking mechanism as described in claim 1, which is characterized in that the through hole tool of the screw (2)
There is a step, forming the smaller epimere of internal diameter and the larger hypomere of internal diameter, the knock pin (1) has outer diameter smaller first
Section, adaptation are mounted on mounted on epimere of the through hole with smaller internal diameter and the second segment for having outer diameter larger, adaptation
The hypomere with larger interior diameter of the through hole, the epimere internal diameter of the through hole are less than the second segment outer diameter of the knock pin (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711230991.2A CN108071651A (en) | 2017-11-29 | 2017-11-29 | A kind of screw-nut integration self-locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711230991.2A CN108071651A (en) | 2017-11-29 | 2017-11-29 | A kind of screw-nut integration self-locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108071651A true CN108071651A (en) | 2018-05-25 |
Family
ID=62157386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711230991.2A Pending CN108071651A (en) | 2017-11-29 | 2017-11-29 | A kind of screw-nut integration self-locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071651A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488198A (en) * | 2018-06-26 | 2018-09-04 | 周焱春 | A kind of self-locking screw |
| CN109026938A (en) * | 2018-08-12 | 2018-12-18 | 米德利 | Quick locking fastener device |
| CN109533390A (en) * | 2018-11-15 | 2019-03-29 | 中国直升机设计研究所 | A kind of bracket for propeller hub support arm installation angular measurement |
| CN110131283A (en) * | 2019-06-10 | 2019-08-16 | 浙江盛世瑞金紧固件有限公司 | A kind of automotive hub bolt assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202628731U (en) * | 2012-03-09 | 2012-12-26 | 成都飞机设计研究所 | Large-diameter single-sided countersink connecting assembly for composite structure connection |
| CN203023234U (en) * | 2012-12-05 | 2013-06-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Support plate nut with flaring structure |
| CN204025291U (en) * | 2014-08-17 | 2014-12-17 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of Novel self-lock plate nut |
| CN106065894A (en) * | 2016-08-17 | 2016-11-02 | 玉环天润航空机械制造有限公司 | A kind of vibration proof type quick-detachable lock mechanism |
| CN205806173U (en) * | 2016-06-24 | 2016-12-14 | 中国航空工业集团公司西安飞机设计研究所 | A kind of changeable type moves about plate nut |
-
2017
- 2017-11-29 CN CN201711230991.2A patent/CN108071651A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202628731U (en) * | 2012-03-09 | 2012-12-26 | 成都飞机设计研究所 | Large-diameter single-sided countersink connecting assembly for composite structure connection |
| CN203023234U (en) * | 2012-12-05 | 2013-06-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Support plate nut with flaring structure |
| CN204025291U (en) * | 2014-08-17 | 2014-12-17 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of Novel self-lock plate nut |
| CN205806173U (en) * | 2016-06-24 | 2016-12-14 | 中国航空工业集团公司西安飞机设计研究所 | A kind of changeable type moves about plate nut |
| CN106065894A (en) * | 2016-08-17 | 2016-11-02 | 玉环天润航空机械制造有限公司 | A kind of vibration proof type quick-detachable lock mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488198A (en) * | 2018-06-26 | 2018-09-04 | 周焱春 | A kind of self-locking screw |
| CN109026938A (en) * | 2018-08-12 | 2018-12-18 | 米德利 | Quick locking fastener device |
| CN109533390A (en) * | 2018-11-15 | 2019-03-29 | 中国直升机设计研究所 | A kind of bracket for propeller hub support arm installation angular measurement |
| CN109533390B (en) * | 2018-11-15 | 2020-11-03 | 中国直升机设计研究所 | Support for measuring mounting angle of propeller hub support arm |
| CN110131283A (en) * | 2019-06-10 | 2019-08-16 | 浙江盛世瑞金紧固件有限公司 | A kind of automotive hub bolt assembly |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180525 |
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| RJ01 | Rejection of invention patent application after publication |