CN108223541A - A kind of eccentric self-locking plate nut - Google Patents
A kind of eccentric self-locking plate nut Download PDFInfo
- Publication number
- CN108223541A CN108223541A CN201711429380.0A CN201711429380A CN108223541A CN 108223541 A CN108223541 A CN 108223541A CN 201711429380 A CN201711429380 A CN 201711429380A CN 108223541 A CN108223541 A CN 108223541A
- Authority
- CN
- China
- Prior art keywords
- stud
- nut
- plate nut
- locking
- eccentric
- 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
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
- F16B37/00—Nuts or like thread-engaging members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention belongs to aero-engine structure designs, and in particular to wheel disc, drum barrel installation side stud connector design.A kind of eccentric self-locking plate nut, it is made of plate nut 1 and stud 2, described plate nut one end is equipped with centering taper hole 5, the other end is equipped with support ear 3, stud is equipped with eccentric conehead 10 with nut connecting pin, the axle center of plate nut and the axle center of centering taper hole 5 are misaligned, and the axle center of stud and the axle center of eccentric conehead 10 are misaligned.Self-locking nut locking property proposed by the present invention is good, reusability is good, compact, has the advantages that axial positioning function to stud, suitable for the design requirement of plate nut, solves the following deficiency of traditional plate nut：Repeatedly assembling is decomposed locking property and is declined；The axial position of stud with calliper and need to control；Stud need to be carried out when screwing opposite side nut circumferentially fixed.
Description
Technical field
The invention belongs to aero-engine structure designs, and in particular to wheel disc, drum barrel installation side stud connector design.
Background technology
When engine structure designs, a large amount of connections that each parts are carried out using bolt, but some position spaces are narrow
It is small, it is difficult to be coupled using the bolt of ordinary construction, nut.Plate nut is exactly a kind of special knot to solve the above problems
Structure, but the self-locking structure of current plate nut is identical with the structure of common self-locking nut (oval mouth self-locking), defect is lock
Tight ability is decomposed number increase with assembling and is decreased obviously.Due to being integrally formed after plate nut and the assembling of installation side, to divide
Solution must take the mode of cutting damage, so not only operating difficulties but also may to installation side damage.
The structure type of current self-locking nut generally has：1) embedded foreign matter formula self-locking nut.Principle is embedding in nut interior
Enter nylon ring, bushing etc., reach locking purpose.Shortcoming is nut volume is big, reusability is poor etc..2) oval mouth self-locking spiral shell
It is female.Principle is that several circles in nut thread end squeeze ovalisation, and oval after nut, bolt cooperation to become positive round, clamp bolt reaches
Self-locking purpose.This self-locking nut is widely used in present engine structure design, and advantage is that nut is small, user
Just, reliable lock, although shortcoming is can be used for multiple times, number is limited, and lock ability increases with the number that assembling is decomposed
And it reduces.3) eccentric self-locking nut.Using Japanese Hadlock (hard lock) Industrial Co., Ltd as the eccentric self-locking spiral shell of representative
Mother, it is made of two nuts, and one is clamp nut (generating axial pre tightening force), and one is locking nut, and two combinations make
With realizing that interference is eccentric, the power of transverse shear stress bolt is generated, realizes locking.This nut is substantially that a kind of " female-female " interference is inclined
Heart self-locking nut.Its advantage is that locking property is good, and it is good to repeat usability；Shortcoming is that volume is bigger than normal, it is necessary to have enough assemblings
Space, which is used for rotating nuts, to lock, and be not suitable for plate nut.
Invention content
Goal of the invention：The purpose of the invention is to solve the lock ability of common oval mouth self-locking plate nut with assembling
Decompose the problem of number increases and declines.
Technical solution：A kind of eccentric self-locking plate nut, is made of plate nut 1 and stud 2, described plate nut one end
Equipped with centering taper hole 5, the other end is equipped with support ear 3, and stud and nut connecting pin are equipped with eccentric conehead 10, the axle center of plate nut with
The axle center of centering taper hole 5 is misaligned, and the axle center of stud and the axle center of eccentric conehead 10 are misaligned.
After nut and stud screw, center line 7 is overlapped with center line 12, and 5 surface of taper hole and 10 surface of conehead
Just fitting.To loosening nut and stud, due to line 6 (or 11) centered on rotation center, center line 7 and center line must be caused
12 separation, so as to cause interfering with each other for taper hole 5 and conehead 10, the relative rotation of obstruction nut and stud reaches locking purpose.
Advantageous effects
The present invention realizes locking function, and after assembling between internal and external threads by the eccentric interference of nut and stud
Transverse shear stress is had no, there is originality.The self-locking nut locking property is good, reusability is good, compact, has axis to stud
The advantages that positioning function, suitable for the design requirement of plate nut, solves the following of traditional plate nut (oval mouth)
It is insufficient：Repeatedly assembling is decomposed locking property and is declined；The axial position of stud with calliper and need to control；Screw opposite side nut
When need to stud carry out it is circumferentially fixed.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is plate nut structure diagram；
Fig. 3 is bolt structure schematic diagram；
Number explanation：1- plate nuts, 2- studs, 3- support ears, 4- nut thread teeth, 5- centering taper holes, 6- nuts center
Line, 7- centering taper hole center lines, hexagon slot in 8-, 9- stud ridges, 10- bias coneheads, 11- center stud lines, 12- are inclined
Heart conehead center line.
Specific embodiment
Referring to attached drawing 1-3, the invention design is a kind of eccentric self-locking plate nut, and nut will group with stud (bolt)
Close the purpose that design can be only achieved Camlock.The structure of plate nut and stud is as shown in Figure 1.
The structure of the present invention is made of plate nut 1 and stud 2, and the structure having locking effect is nut end centering taper hole
5 with the eccentric conehead 10 of stud end.After nut and stud screw, center line 7 is overlapped with center line 12, and taper hole 5
Surface is bonded just with 10 surface of conehead.To loosening nut and stud, due to line 6 (or 11) centered on rotation center, must lead
Center line 7 is caused to be detached with center line 12, so as to cause interfering with each other for taper hole 5 and conehead 10, obstruction nut and stud it is opposite
Rotation, reaches locking purpose.Support ear 3 is the peculiar structure of plate nut in design.
Interior hexagon slot 8 is provided in the tail end of stud 2 convenient for applying torque when assembling or decomposition nut, stud.
Plate nut should meet following state simultaneously after being screwed with stud：
A) nut thread tooth 4 is engaged with stud ridge 9；
B) 5 surface of centering taper hole is bonded with eccentric 10 surface of conehead；
C) centering taper hole center line 7 is overlapped with eccentric cone center line 12；
D) taper hole 5 and cone 10 are without transverse shear stress, also without transverse shear stress between internal and external threads tooth.
Claims (2)
1. a kind of eccentric self-locking plate nut is made of plate nut (1) and stud (2), spy is：The plate nut one
End is equipped with centering taper hole (5), and the other end is equipped with support ear (3), and stud (2) is equipped with eccentric conehead with plate nut (1) connecting pin
(10), the axle center of plate nut (1) and the axle center of centering taper hole (5) are misaligned, the axle center of stud (2) and eccentric conehead (10)
Axle center is misaligned.
2. a kind of eccentric self-locking plate nut according to claim 1, spy are：The tail end of the stud (2) is provided with
Interior hexagon slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429380.0A CN108223541A (en) | 2017-12-26 | 2017-12-26 | A kind of eccentric self-locking plate nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429380.0A CN108223541A (en) | 2017-12-26 | 2017-12-26 | A kind of eccentric self-locking plate nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223541A true CN108223541A (en) | 2018-06-29 |
Family
ID=62647901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711429380.0A Pending CN108223541A (en) | 2017-12-26 | 2017-12-26 | A kind of eccentric self-locking plate nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223541A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058829A (en) * | 1990-08-07 | 1992-02-19 | 湖南省常德电业局超高压管理所 | safety nut |
| JPH0626510A (en) * | 1992-07-08 | 1994-02-01 | Delta:Kk | Power nut |
| CN1287229A (en) * | 1999-09-08 | 2001-03-14 | 杨泰和 | Locking screw nut with two thread segments |
| CN1349056A (en) * | 2000-10-18 | 2002-05-15 | 哈德洛克工业株式会社 | Anti-loosen screw nut component |
| CN201650991U (en) * | 2010-05-04 | 2010-11-24 | 贵州航天精工制造有限公司 | High temperature resistant anti-vibration MJ plate nut |
| CN202926826U (en) * | 2012-11-30 | 2013-05-08 | 浙江荣得利航空部件有限公司 | Supporting plate nut |
-
2017
- 2017-12-26 CN CN201711429380.0A patent/CN108223541A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058829A (en) * | 1990-08-07 | 1992-02-19 | 湖南省常德电业局超高压管理所 | safety nut |
| JPH0626510A (en) * | 1992-07-08 | 1994-02-01 | Delta:Kk | Power nut |
| CN1287229A (en) * | 1999-09-08 | 2001-03-14 | 杨泰和 | Locking screw nut with two thread segments |
| CN1349056A (en) * | 2000-10-18 | 2002-05-15 | 哈德洛克工业株式会社 | Anti-loosen screw nut component |
| CN201650991U (en) * | 2010-05-04 | 2010-11-24 | 贵州航天精工制造有限公司 | High temperature resistant anti-vibration MJ plate nut |
| CN202926826U (en) * | 2012-11-30 | 2013-05-08 | 浙江荣得利航空部件有限公司 | Supporting plate nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |