CN103807271A - Combined self-locking nut capable of preventing nut from loosening - Google Patents
Combined self-locking nut capable of preventing nut from loosening Download PDFInfo
- Publication number
- CN103807271A CN103807271A CN201310629982.6A CN201310629982A CN103807271A CN 103807271 A CN103807271 A CN 103807271A CN 201310629982 A CN201310629982 A CN 201310629982A CN 103807271 A CN103807271 A CN 103807271A
- Authority
- CN
- China
- Prior art keywords
- nut
- auxiliary
- slotted
- nut body
- loosening
- 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.)
- Granted
Links
Images
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a combined self-locking nut capable of preventing the nut from loosening. The combined self-locking nut comprises a slotted nut and an auxiliary nut, wherein the slotted nut comprises a slotted nut body, a spring piece is arranged at one end of the slotted nut body, and a plurality of opening slots are formed in the spring piece; and the auxiliary nut comprises an auxiliary nut body, a boss extends out of one end of the auxiliary nut body, inner threads are arranged inside the auxiliary nut body and the boss, a contraction port is also formed in the boss, and a wedge-shaped groove is formed inside the other end of the auxiliary nut body and matched with the spring piece for installation. According to the combined self-locking nut, the contraction port structure is arranged at the opening end of the auxiliary nut, the wedge-shaped groove in the bottom of the auxiliary nut and the spring piece of the slotted nut are closely attached and interact to produce frictional force during assembly, so that the acting force enabling the nut to loosen is overcome, the combined self-locking nut can be connected with a bolt more firmly, and phenomena of looseness of the self-locking nut are reduced.
Description
Technical field
The present invention relates to a kind of nut, especially relate to a kind of self locking combination nut that prevents nut loosening.
Background technique
In existing nut anti-looseness technology, conventionally adopt screw, nut, pad to fix assembling two component.Plain nut adopts the mode of screw thread distortion to produce pretightening force, in the long-term process using of component, often there is nut from the loosening out of gear mesh phenomenon of bolt, especially in the situation that service condition is more severe, or under the service condition of less maintenance, plain nut can not meet locking requirement completely, gives and produces, uses and bring potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of self locking combination nut that prevents nut loosening for problems of the prior art, its objective is that solving nut in prior art easily becomes flexible, comes off, the defect of poor reliability, the fixed performance of raising bolt.
Technological scheme of the present invention is that this kind prevents that the self locking combination nut of nut loosening from comprising slotted nut and auxiliary nut, described slotted nut comprises slotted nut body, one end of slotted nut body is provided with spring sheet, and described spring sheet is provided with several opening slots; Described auxiliary nut comprises auxiliary nut body, a boss is extended in one end of auxiliary nut body, auxiliary nut body and boss inside are provided with internal thread, and on described boss, be also provided with contraction mouth, the inside of the other end of described auxiliary nut body is provided with wedge-shaped impression, and described wedge-shaped impression coordinates installation with spring sheet.
Described spring sheet is obliquely installed with respect to the portareapiston of slotted nut body, and the angle between bus and the axis of slotted nut body of spring sheet inclination is identical with the angle between the bus of wedge-shaped impression and the axis of auxiliary nut body.
Angle between the axis of the bus of described wedge-shaped impression and auxiliary nut body is 5 °-25 °.
As a kind of optimal way of the present invention, the angle between the bus of described wedge-shaped impression and the axis of auxiliary nut body is preferably 10 °-20 °.
As the more preferred mode of one of the present invention, the angle between the bus of described wedge-shaped impression and the axis of auxiliary nut body is preferably 15 °.
Opening slot on described spring sheet has four, and four opening slots angle is between any two 90 °.
This kind with said structure prevents that the self locking combination nut of nut loosening from having the following advantages:
1. the self locking combination nut that this kind prevents nut loosening is by the wedge-shaped impression of offering in auxiliary nut bottom, after slotted nut and auxiliary nut and bolt are fixed together parts to be connected, the spring sheet at slotted nut top will be resisted against in the groove of slotted nut bottom, and after slotted nut is tightened, the groove of auxiliary nut is by stressed extrusion-deformation, because slotted nut locking spring sheet position has the opening slot of four symplex structures, the spring sheet of extrusion-deformation will apply larger elastic force at auxiliary nut groove internal surface and spring sheet outer surface, while making nut loosening, between two surfaces, produce enough frictional force and prevent nut motion, thereby stop the generation of nut loosening phenomenon.
2. this kind prevents the tapped hole ovalize of the self locking combination nut auxiliary nut body of nut loosening, the screw thread of outlet end produces radial contraction distortion, whole nut is screwed in process, first freely be screwed into post gap locking, by the extruding of bolt, make auxiliary nut hold tightly bolt tightly, produce very large frictional force, make very closely firm being resisted against on parts to be connected of assembled nut, effectively reduce the nut loosening phenomenon producing because of vibrations, improved anti-loosening property and the reliability of nut.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of slotted nut in the present invention.
Fig. 3 is the plan view of structure shown in Fig. 2.
Fig. 4 is the structural representation of auxiliary nut in the present invention.
Fig. 5 is the plan view of structure shown in Fig. 4.
In Fig. 1-5,1: slotted nut body; 2: spring sheet; 3: opening slot; 4: auxiliary nut body; 5: internal thread; 6: contraction mouth; 7: wedge-shaped impression.
Embodiment
Fig. 1 is structural representation of the present invention, and Fig. 2 is slotted nut structural representation in the present invention, and Fig. 3 is the plan view of structure shown in Fig. 2, and Fig. 4 is the structural representation of auxiliary nut in the present invention, and Fig. 5 is the plan view of structure shown in Fig. 4.From structure shown in Fig. 1-Fig. 5 in conjunction with, this kind prevents that the self locking combination nut of nut loosening from comprising slotted nut and auxiliary nut, slotted nut comprises slotted nut body 1, one end of slotted nut body 1 is provided with spring sheet 2, and described spring sheet 2 is provided with four opening slots 3, and four opening slots 3 angle is between any two 90 °.Described auxiliary nut comprises auxiliary nut body 4, a boss is extended in one end of auxiliary nut body 4, auxiliary nut body 4 and boss inside are provided with internal thread 5, and on described boss, be also provided with contraction mouth 6, the inside of the other end of described auxiliary nut body 4 is provided with wedge-shaped impression 7, and described wedge-shaped impression 7 coordinates installation with spring sheet 2.
Angle between the axis of the bus of wedge-shaped impression 7 and auxiliary nut body 4 is 5 °-25 °.
As a preferred embodiment of the present invention, the angle between the bus of wedge-shaped impression 7 and the axis of auxiliary nut body 4 is preferably 10 °-20 °.
As the more preferred technological scheme of one of the present invention, the angle between the bus of wedge-shaped impression 7 and the axis of auxiliary nut body 4 is preferably 15 °.
Common internal thread 5 is offered in auxiliary nut of the present invention neutral position, the bottom of auxiliary nut body 4 is wedge-shaped impressions 2, be used for slotted nut body 1 on spring sheet 2 extruding laminating, apply certain power by press machine at contraction mouth 6, make screw thread produce the radial contraction distortion of 2-3 button, form contraction mouth 6.Whole nut is screwed in process, is first freely screwed into post gap locking, pushes by bolt, makes nut hold bolt tightly, produces very large frictional force, thereby plays good anti-loosing effect.Nut outlet end is wedge-shaped impression 7 structures, for fitting with the spring sheet 2 of slotted nut.
Locking position adopts four tapering spring sheets 2, and it is 2mm opening slot 3 that four symmetrical width are opened at locking position.After slotted nut heat treatment, mother metal has higher yield strength, and in auxiliary nut and slotted nut combination assembly process, spring sheet 2 can produce larger elastic force afterwards in distortion, thereby guarantees the locking property of nut.
Self-locking nut assembly of the present invention, by contraction mouth structure being set at auxiliary nut opening end, can guarantee that nut produces very large extruding force in rundown process, improves nut anti-looseness performance.The wedge-shaped impression of auxiliary nut bottom and the spring sheet of slotted nut fit tightly in assembly process, interact and produce frictional force, overcome the active force that makes nut loosening, what make that self-locking nut assembly of the present invention can be more firm is connected with bolt, reduce self-locking nut and occur loosening phenomenon, the reliability of more favourable raising self-locking nut.
Claims (6)
1. one kind prevents the self locking combination nut of nut loosening, it is characterized in that: the described self locking combination nut that prevents nut loosening comprises slotted nut and auxiliary nut, described slotted nut comprises slotted nut body (1), one end of slotted nut body (1) is provided with spring sheet (2), and described spring sheet (2) is provided with several opening slots (3); Described auxiliary nut comprises auxiliary nut body (4), a boss is extended in one end of auxiliary nut body (4), auxiliary nut body (4) and boss inside are provided with internal thread (5), and on described boss, be also provided with contraction mouth (6), the inside of the other end of described auxiliary nut body (4) is provided with wedge-shaped impression (7), and described wedge-shaped impression (7) coordinates installation with spring sheet (2).
2. a kind of self locking combination nut that prevents nut loosening according to claim 1, it is characterized in that: described spring sheet (2) is obliquely installed with respect to the portareapiston of slotted nut body (1), and the angle between bus and the axis of slotted nut body (1) of spring sheet (2) inclination is identical with the angle between the bus of wedge-shaped impression (7) and the axis of auxiliary nut body (4).
3. a kind of self locking combination nut that prevents nut loosening according to claim 2, is characterized in that: the angle between the bus of described wedge-shaped impression (7) and the axis of auxiliary nut body (4) is 5 °-25 °.
4. a kind of self locking combination nut that prevents nut loosening according to claim 3, is characterized in that: the angle between the bus of described wedge-shaped impression (7) and the axis of auxiliary nut body (4) is preferably 10 °-20 °.
5. a kind of self locking combination nut that prevents nut loosening according to claim 4, is characterized in that: the angle between the bus of described wedge-shaped impression (7) and the axis of auxiliary nut body (4) is preferably 15 °.
6. according to a kind of self locking combination nut that prevents nut loosening described in claim 1-5 any one claim, it is characterized in that: the opening slot (3) on described spring sheet (2) has four, four opening slots (3) angle is between any two 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629982.6A CN103807271B (en) | 2013-11-28 | 2013-11-28 | A kind of self locking combination nut preventing nut loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629982.6A CN103807271B (en) | 2013-11-28 | 2013-11-28 | A kind of self locking combination nut preventing nut loosening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103807271A true CN103807271A (en) | 2014-05-21 |
| CN103807271B CN103807271B (en) | 2016-01-20 |
Family
ID=50704515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310629982.6A Active CN103807271B (en) | 2013-11-28 | 2013-11-28 | A kind of self locking combination nut preventing nut loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103807271B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591227A (en) * | 2018-07-17 | 2018-09-28 | 佛山市鑫锦龙机械科技有限公司 | A kind of Self-locking screw nut |
| CN108679073A (en) * | 2018-08-03 | 2018-10-19 | 周峰 | Shockproof screw nut external member |
| CN109807587A (en) * | 2019-03-14 | 2019-05-28 | 宁波长华长盛汽车零部件有限公司 | High-accuracy multi-station nut riveter |
| CN112128205A (en) * | 2020-09-03 | 2020-12-25 | 海洋动力(海南自贸区)新能源科技有限公司 | Wedge-shaped anti-loosening nut |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB250362A (en) * | 1925-02-16 | 1926-04-15 | Arthur Augustus Brooks | Improvements in or relating to lock nuts for bolts, studs and the like |
| US2690201A (en) * | 1949-01-12 | 1954-09-28 | Elastic Stop Nut Corp | Self-locking nut |
| CN2481895Y (en) * | 2001-06-28 | 2002-03-13 | 罗洪泰 | Locknut |
| CN2771552Y (en) * | 2005-01-08 | 2006-04-12 | 倪建平 | Stop nut |
| CN201896845U (en) * | 2010-11-23 | 2011-07-13 | 安徽省天马泵阀集团有限公司 | Locking nut for underwater pump |
-
2013
- 2013-11-28 CN CN201310629982.6A patent/CN103807271B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB250362A (en) * | 1925-02-16 | 1926-04-15 | Arthur Augustus Brooks | Improvements in or relating to lock nuts for bolts, studs and the like |
| US2690201A (en) * | 1949-01-12 | 1954-09-28 | Elastic Stop Nut Corp | Self-locking nut |
| CN2481895Y (en) * | 2001-06-28 | 2002-03-13 | 罗洪泰 | Locknut |
| CN2771552Y (en) * | 2005-01-08 | 2006-04-12 | 倪建平 | Stop nut |
| CN201896845U (en) * | 2010-11-23 | 2011-07-13 | 安徽省天马泵阀集团有限公司 | Locking nut for underwater pump |
Non-Patent Citations (1)
| Title |
|---|
| 王雁彬: "《机械加工技师手册》", 3 June 2013 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591227A (en) * | 2018-07-17 | 2018-09-28 | 佛山市鑫锦龙机械科技有限公司 | A kind of Self-locking screw nut |
| CN108679073A (en) * | 2018-08-03 | 2018-10-19 | 周峰 | Shockproof screw nut external member |
| CN108679073B (en) * | 2018-08-03 | 2023-11-14 | 周峰 | Shockproof nut sleeve |
| CN109807587A (en) * | 2019-03-14 | 2019-05-28 | 宁波长华长盛汽车零部件有限公司 | High-accuracy multi-station nut riveter |
| CN109807587B (en) * | 2019-03-14 | 2024-04-02 | 宁波长华长盛汽车零部件有限公司 | High-precision multi-station nut riveting machine |
| CN112128205A (en) * | 2020-09-03 | 2020-12-25 | 海洋动力(海南自贸区)新能源科技有限公司 | Wedge-shaped anti-loosening nut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103807271B (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2011231927A (en) | Concave-convex shapes on bolts and nuts to minimize bending | |
| CN103807271B (en) | A kind of self locking combination nut preventing nut loosening | |
| WO2012147207A1 (en) | Self-tapping screw | |
| CN202176596U (en) | Nut with spring washer | |
| CN205715164U (en) | Self-locking type check bolt assembly | |
| CN204591951U (en) | Self locking anti-loose nut | |
| CN108757700A (en) | Deformation type anti-loosen screw nut component | |
| CN210565555U (en) | Large-scale pull rod fixing device | |
| CN101922496A (en) | Bolt and bolt connecting structure thereof | |
| AU2011344915A1 (en) | Self-locking screw | |
| CN209654405U (en) | Deformation type anti-loosen screw nut component | |
| CN203670399U (en) | Locking bolt | |
| CN103560340A (en) | Anti-loosening wind power bus connecting component | |
| CN204061494U (en) | Shockproof locking Self-locking screw and shockproof loosening-preventing self-lock screw-thread fastener assembly | |
| TWM549832U (en) | Lock nut | |
| CN203809474U (en) | Anti-disengaging bolt assembly for bridge | |
| CN201391525Y (en) | Double end stud connecting piece locked by taper end screw | |
| CN101776117A (en) | Anti-loosening method for connection between round nut and bolt | |
| CN201671942U (en) | Locking nut | |
| CN108775325A (en) | Deformation type combines stop nut | |
| CN204284164U (en) | Bolt anticreep locking mechanism | |
| CN202833558U (en) | Anti-loose elastic sheet nut | |
| CN105422601A (en) | Lock nut | |
| CN203477010U (en) | Anti-slip anti-loosening bolt structure | |
| CN201627810U (en) | Locking nut |
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 |