CN100425846C - Accentric self locking nut - Google Patents
Accentric self locking nut Download PDFInfo
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- CN100425846C CN100425846C CNB2006101349405A CN200610134940A CN100425846C CN 100425846 C CN100425846 C CN 100425846C CN B2006101349405 A CNB2006101349405 A CN B2006101349405A CN 200610134940 A CN200610134940 A CN 200610134940A CN 100425846 C CN100425846 C CN 100425846C
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- self
- locking
- eccentric
- locking ring
- thread
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Abstract
An eccentric self-locking nut is composed of a screwed main body, an eccentric sleeve at one end of said main body, a self-locking ring installed on said main body, and an eccentric stop arranged in said self-locking ring and in contact with said eccentric sleeve.
Description
Technical field
The present invention relates to a kind of fastening piece that machinery works the effect of being threaded that is used for, particularly a kind ofly not limited by any service condition, and rely on nut itself to prevent the Accentric self locking nut of nut loosening fully.It mainly is applicable to the important scyewed joint occasion that often is in judder.
Background technique
Usually machinery utilizes fastening piece to connect; general rely on self screw thread and built-in anti-slow part between nut and screw arbor assembly locking, this mainly contains following several: the anti-slow ring type nut of built-in nylon, built-in anti-slow coil spring formula nut, change nut thread tooth form formula nut, built-in anti-slow pin (ball) self-locking nut, grooved nut and cut the anti-slow Castellated nut of elasticity etc.Other is locking to utilize nut and the combination of additional anti-release member in addition, and it has: additional springs packing ring, lock washer, utilize tackiness agent, locking or the like towards deformation point.Above anti-loose method cuts both ways, and can only satisfy certain usage requirement, and anti-slow strength deficiency is to reach locking purpose.Built-in anti-slow pin (ball) has solved the drawbacks of numerous anti-slow nuts substantially though the anti-slow intensity of self-locking nut is enough, easily makes during its self-locking to connect screw flight generation local plastic deformation, repeatedly uses and can destroy screw flight, influences screw rod working life.
Summary of the invention
The purpose of this invention is to provide a kind of Accentric self locking nut, it has fundamentally solved the problems such as anti-slow strength deficiency that existing nut anti-looseness exists, its reasonable in design, has easy accessibility, reuse, locking reliable, be not subjected to advantages such as any service condition restriction, significantly improve its self-locking property and working life.
The object of the present invention is achieved like this: this self-locking nut comprises threaded body, its technological points is: described body one end is provided with eccentric bushing, be assembled in the eccentric seam that the built-in and described eccentric bushing of self-locking ring of body top joins, described eccentric seam and described eccentric bushing adopt interference fit or stick with glue connect fixing, and between described eccentric seam the inner and described eccentric bushing top, non-metallic gasket is set, between described self-locking ring lower end surface and the described body upper-end surface under original state, be provided with and be less than or equal to half axial clearance of lead of screw thread, the internal thread of described body is identical with the internal thread of described self-locking ring, and its thread center's line is on same longitudinal center line, the external diameter of described eccentric bushing is identical with the longitudinal center line of described eccentric seam internal diameter, and the departing from same eccentric axis of its longitudinal center line and thread center's line.
Because body one end of the present invention is provided with eccentric bushing and self-locking ring built-in and the eccentric seam that eccentric bushing joins, the internal thread of eccentric bushing and self-locking ring is identical, and its thread center's line is on same longitudinal center line, the external diameter of eccentric bushing is identical with the longitudinal center line of eccentric seam internal diameter, and departing from same eccentric axis of its longitudinal center line and thread center's line, so when needing locking, as long as self-locking ring is rotated relative to body, will make on initial concentric in it, following interior threaded hole is offset, internal thread on the self-locking ring blocks the outside thread of coupled screw rod, produce radial force and frictional force, can prevent that coupling nut is loosening.Simultaneously, self-locking ring is subjected to the internal thread anastomosis after rotating, and it is moved axially press to body.When needs dismounting self-locking nut, the relative body of self-locking ring is gone back to initial position, self-locking ring is resetted, promptly rotatable body unloads self-locking nut smoothly, and easy accessibility is not limited by any service condition.Because coupled screw rod coincide in rotation process all the time with the screw thread that connects of self-locking nut, so, not injuring intermeshing screw thread, screw rod and self-locking nut are exhausted can be reused, and significantly improves nut self-locking property and working life.Large eccentricity is apart from big more more for the self-locking ring rotation angle, and self-lock force is just big more, and anti-loosing effect is just good more.Therefore, this self-locking nut is specially adapted to often take place the important scyewed joint place of judder.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described:
Fig. 1 is a kind of concrete structure schematic representation of the present invention.
Fig. 2 is the sectional view of Fig. 1 along the A-A line.
Fig. 3 is a kind of user mode schematic representation of the present invention.
Embodiment
Describe concrete structure of the present invention in detail according to Fig. 1～3.This Accentric self locking nut is made up of body 1 and self-locking ring 2 two-part.Wherein an end of body 1 is provided with eccentric bushing 4, is assembled in the self-locking ring 2 built-in eccentric seams 3 that join with eccentric bushing 4 of body 1 top.The internal thread of body 1 is identical with the internal thread of self-locking ring 2, and its thread center's line is on same longitudinal center line.When initial mounting point, the longitudinal center line of eccentric seam 3 internal diameters that the external diameter of eccentric bushing 4 and self-locking ring 2 are interior is identical, and the departing from same eccentric axis of its longitudinal center line and thread center's line.At this moment, self-locking nut is the same with plain nut, can free-handly smoothly be screwed on the same size screw rod 8.Add man-hour, the eccentric seam 3 in the self-locking ring 2 and the connecting sleeve 4 of body 1 adopt interference fit or stick with glue knot and fix.Under original state, be provided with and be less than or equal to half axial clearance (as shown in Figure 1) of lead of screw thread between self-locking ring 2 lower end surfaces and body 1 upper-end surface.In order to strengthen the self-lock ability of body 1 better, between eccentric bushing 4 tops of the inner and body 1 of eccentric seam 3 that can also be in self-locking ring 2 the non-metallic gasket (not shown) is set, so that self-locking ring 2 rotates when compressing, generation prevents further that as the anti-loosing effect of built-in anti-slow spring nut self-locking ring 2 is loosening when locking state.
When utilize self-locking nut of the present invention by packing ring with coupled 6,7 and attachment bolt 8 locking after, when needing self-locking, self-locking ring 2 relative bodies 1 are rotated an angle and get final product along screwing the nut direction, operate very simple.This moment, self-locking ring 2 internal thread centers will be offset (connecting screw rod 8 or main body 1 internal thread relatively), under this wobbler action, make self-locking ring 2 internal threads connect screw rod 8 outside threads relatively and produce very big radial force in the engagement place, according to mechanics principle, body 1 internal thread connects screw rod 8 outside threads relatively and also produces a very big radially counter-force in the engagement place, under above-mentioned two radial force effects, make self-locking nut and coupled screw rod 8 firmly locked.This self-lock force strengthens with eccentric self-locking ring 2 relative body 1 rotation angles, thereby realizes locking, anti-slow locking function.
When needs dismountings self-locking nut, as long as the opposite direction with it during along self-locking resets self-locking ring 2, the central lines of the center line of self-locking ring 2 internal threads and body 1 internal thread just can be dismantled self-locking nut smoothly, and is the same with plain nut, repeated use.
Claims (1)
1, a kind of Accentric self locking nut, comprise the body that has internal thread, it is characterized in that: described body one end is provided with eccentric bushing, be assembled in the eccentric seam that the built-in and described eccentric bushing of self-locking ring of body top joins, described eccentric seam and described eccentric bushing adopt interference fit or stick with glue connect fixing, and between described eccentric seam the inner and described eccentric bushing top, non-metallic gasket is set, between described self-locking ring lower end surface and the described body upper-end surface under original state, be provided with and be less than or equal to half axial clearance of lead of screw thread, the internal thread of described body is identical with the internal thread of described self-locking ring, and its thread center's line is on same longitudinal center line, the external diameter of described eccentric bushing is identical with the longitudinal center line of described eccentric seam internal diameter, and the departing from same eccentric axis of its longitudinal center line and thread center's line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101349405A CN100425846C (en) | 2006-12-22 | 2006-12-22 | Accentric self locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101349405A CN100425846C (en) | 2006-12-22 | 2006-12-22 | Accentric self locking nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1987133A CN1987133A (en) | 2007-06-27 |
| CN100425846C true CN100425846C (en) | 2008-10-15 |
Family
ID=38184042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101349405A Active CN100425846C (en) | 2006-12-22 | 2006-12-22 | Accentric self locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100425846C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9322275B2 (en) * | 2011-08-02 | 2016-04-26 | General Electric Company | Self locking nut and bolt assembly |
| US9291061B2 (en) | 2012-04-13 | 2016-03-22 | General Electric Company | Turbomachine blade tip shroud with parallel casing configuration |
| CN103195786A (en) * | 2013-04-09 | 2013-07-10 | 徐文秀 | Anti-looseness nut |
| CN103277392B (en) * | 2013-06-13 | 2015-06-17 | 魏民 | Eccentric type self-locking nut |
| DE102013108650A1 (en) * | 2013-08-09 | 2015-02-12 | Wittenstein Ag | Mounting system with eccentric |
| CN105114433A (en) * | 2015-07-13 | 2015-12-02 | 东西方航空科技发展(宁波)有限公司 | Locking nut piece |
| CN110319103A (en) * | 2018-03-29 | 2019-10-11 | 罗章平 | Automatic anti-loosing screw nut and dedicated dismantling device |
| CN111963551B (en) * | 2020-09-06 | 2022-04-01 | 叶春林 | Single ring type locknut assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86204074U (en) * | 1986-09-08 | 1987-07-22 | 宁波市江北区工业局 | Locknut |
| EP0362132A1 (en) * | 1988-09-12 | 1990-04-04 | SKB Fabrique de roulements SA | Locking element |
| CN2395077Y (en) * | 1998-04-24 | 2000-09-06 | 沈天仁 | Anti-loose nut |
| JP2003042128A (en) * | 2001-05-25 | 2003-02-13 | Shinya Uehara | Locking nut and locking fastening structure using the same |
| CN2572108Y (en) * | 2002-09-26 | 2003-09-10 | 天津理工学院 | Double locknut utilizing taper surface |
-
2006
- 2006-12-22 CN CNB2006101349405A patent/CN100425846C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86204074U (en) * | 1986-09-08 | 1987-07-22 | 宁波市江北区工业局 | Locknut |
| EP0362132A1 (en) * | 1988-09-12 | 1990-04-04 | SKB Fabrique de roulements SA | Locking element |
| CN2395077Y (en) * | 1998-04-24 | 2000-09-06 | 沈天仁 | Anti-loose nut |
| JP2003042128A (en) * | 2001-05-25 | 2003-02-13 | Shinya Uehara | Locking nut and locking fastening structure using the same |
| CN2572108Y (en) * | 2002-09-26 | 2003-09-10 | 天津理工学院 | Double locknut utilizing taper surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1987133A (en) | 2007-06-27 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20070627 Assignee: Zhejiang Sai Electromechanical Technology Co., Ltd Assignor: Wei Min Contract record no.: 2014990000328 Denomination of invention: Accentric self locking nut Granted publication date: 20081015 License type: Exclusive License Record date: 20140521 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |