CN103807271B - A kind of self locking combination nut preventing nut loosening - Google Patents
A kind of self locking combination nut preventing nut loosening Download PDFInfo
- Publication number
- CN103807271B CN103807271B CN201310629982.6A CN201310629982A CN103807271B CN 103807271 B CN103807271 B CN 103807271B CN 201310629982 A CN201310629982 A CN 201310629982A CN 103807271 B CN103807271 B CN 103807271B
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- nut
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- slotted
- spring sheet
- nut body
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- 230000008602 contraction Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 abstract description 8
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a kind of self locking combination nut preventing nut loosening, comprise slotted nut and auxiliary nut, slotted nut comprises slotted nut body, and one end of slotted nut body is provided with spring sheet, and spring sheet is provided with several opening slots; Auxiliary nut comprises auxiliary nut body, a boss is extended in one end of auxiliary nut body, and auxiliary nut body and boss inside are provided with internal thread, and boss is also provided with contraction mouth, the inside of the other end of auxiliary nut body is provided with wedge-shaped impression, and wedge-shaped impression coordinates with spring sheet to be installed.This kind of self locking combination nut is by arranging contraction mouth structure at auxiliary nut opening end, wedge-shaped impression bottom auxiliary nut and the spring sheet of slotted nut fit tightly in assembly process, interact and produce frictional force, overcome the active force making nut loosening, enable more firm being connected with bolt of self-locking nut assembly of the present invention, reduce the phenomenon that loosening appears in self-locking nut.
Description
Technical field
The present invention relates to a kind of nut, especially relate to a kind of self locking combination nut preventing nut loosening.
Background technique
In existing nut anti-looseness technology, screw, nut, pad is usually adopted to fix assembling two component.Plain nut adopts the mode of deformed threads to produce pretightening force, in the process of component Long-Time Service, frequent generation nut loosens out of gear mesh phenomenon from bolt, especially when service condition is more severe, or under the service condition of less maintenance, plain nut can not meet locking requirement completely, gives production, uses and bring potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention provides a kind of self locking combination nut preventing nut loosening for problems of the prior art, its objective is that solving nut in prior art easily loosens, comes off, the defect of poor reliability, improves the fixed performance of bolt.
Technological scheme of the present invention is that this kind prevents 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 described boss is 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 with spring sheet to be installed.
Described spring sheet is obliquely installed relative to the portareapiston of slotted nut body, and the angle between the bus that tilts of spring sheet and the axis of slotted nut body is identical with the angle between the bus of wedge-shaped impression and the axis of auxiliary nut body.
Angle between the bus of described wedge-shaped impression and the axis of 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 the self locking combination nut of nut loosening from having the following advantages:
1. this kind prevents the wedge-shaped impression of the self locking combination nut of nut loosening by offering bottom auxiliary nut, after parts to be connected are fixed together by slotted nut and auxiliary nut and bolt, by the spring sheet at slotted nut top by the groove that is resisted against bottom slotted nut, 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 applies larger elastic force by auxiliary nut groove internal surface and spring sheet outer surface, when making nut loosening, producing enough frictional force between two surfaces prevents nut from moving, thus 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 bolt tightly tightly, produce very large frictional force, make that assembled nut is closely firm to be resisted against on parts to be connected, effectively reduce the nut loosening phenomenon produced because of vibrations, improve 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 figs. 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.Combined from structure shown in Fig. 1-Fig. 5, this kind prevents 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 described boss is 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 with spring sheet 2 to be installed.
Spring sheet 2 is obliquely installed relative to the portareapiston of slotted nut body 1, and the angle between the bus that tilts of spring sheet 2 and the axis of slotted nut body 1 is identical with the angle between the bus of wedge-shaped impression 7 and the axis of auxiliary nut body 4.
Angle between the bus of wedge-shaped impression 7 and the axis of 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 neutral position of the present invention, the bottom of auxiliary nut body 4 is wedge-shaped impressions 2, be used for extruding with the spring sheet 2 on slotted nut body 1 fitting, certain power is applied at contraction mouth 6 by press machine, 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, by bolt compresses, makes nut hold bolt tightly, produce very large frictional force, thus play good anti-loosing effect.Nut outlet end is wedge-shaped impression 7 structure, 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 auxiliary nut and slotted nut combine in assembly process, and spring sheet 2 can produce larger elastic force after deformation, thus ensures the locking property of nut.
Self-locking nut assembly of the present invention, by arranging contraction mouth structure at auxiliary nut opening end, can ensure that nut produces very large extruding force in rundown process, improves nut anti-looseness performance.Wedge-shaped impression bottom auxiliary nut and the spring sheet of slotted nut fit tightly in assembly process, interact and produce frictional force, overcome the active force making nut loosening, enable more firm being connected with bolt of self-locking nut assembly of the present invention, reduce the phenomenon that loosening appears in self-locking nut, 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 of nut loosening that prevents 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 described boss is 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 with spring sheet (2) to be installed.
2. a kind of self locking combination nut preventing nut loosening according to claim 1, it is characterized in that: described spring sheet (2) is obliquely installed relative to the portareapiston of slotted nut body (1), and angle between the bus of angle between the bus that tilts of spring sheet (2) and the axis of slotted nut body (1) and wedge-shaped impression (7) and the axis of auxiliary nut body (4) is identical.
3. a kind of self locking combination nut preventing 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 preventing 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 preventing 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. a kind of self locking combination nut preventing nut loosening according to claim 1-5 any one claim, is characterized in that: the opening slot (3) on described spring sheet (2) has four, and 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 CN103807271A (en) | 2014-05-21 |
| CN103807271B true CN103807271B (en) | 2016-01-20 |
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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 |
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| CN (1) | CN103807271B (en) |
Families Citing this family (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 |
| CN108679073B (en) * | 2018-08-03 | 2023-11-14 | 周峰 | Shockproof nut sleeve |
| 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 |
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 |
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| Publication number | Publication date |
|---|---|
| CN103807271A (en) | 2014-05-21 |
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