CN101709736B - Nut - Google Patents
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- CN101709736B CN101709736B CN2009102137243A CN200910213724A CN101709736B CN 101709736 B CN101709736 B CN 101709736B CN 2009102137243 A CN2009102137243 A CN 2009102137243A CN 200910213724 A CN200910213724 A CN 200910213724A CN 101709736 B CN101709736 B CN 101709736B
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- nut
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- outer ring
- spring washer
- axial
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Abstract
The invention discloses a nut. The nut comprises a nut, an outer ring and a spring gasket, wherein an axial end of the outer ring is movably sleeved at a corresponding end of the nut and is provided with a limit part capable of preventing the nut from being separated from the outer ring; an accommodating cavity accommodating the spring gasket is formed in the outer ring; the spring gasket is arranged inside the accommodating cavity and is inserted into a threaded rod of a bolt assembly; and the accommodating cavity is positioned on the inner wall of the other axial end of the outer ring and is provided with an abutted surface matched with the end face of a corresponding end of the spring gasket. The nut has the advantages that: when the bolt assembly is screwed down, the nut applies a pressure on the spring gasket sleeved on the threaded rod to press the spring gasket tightly; thus, the end face of an axial end of the spring gasket and the inner wall of the accommodating cavity positioned on the other axial end of the outer ring are matched and attached to clamp the threaded rod and enhance the pretightening force between the nut and the threaded rod; and therefore, the nut cannot be easily loosened and fallen off when suffering from intensive vibration and irregular strong fluctuation, thereby prolonging service life.
Description
Technical field
The present invention relates to a kind of component of fastening piece, particularly a kind of nut of bolt assembly.
Background technique
At present, in general fastening component, nut is the common and component widely of a kind of purposes.As not embodying its effect nowhere in each fields such as machinery, electric power, automobile, railway, aviations.Yet nut is when sharp pounding and irregular powerful the fluctuation; nut loosening and obscission appear through regular meeting; cause influencing the normal operation and the use of each side such as machinery, vehicle, and nut cooperates with bolt when tightening, nut also easily scratch fastening body surface.In order to address this problem, modular nut has appearred on the market, it comprises nut and outer ring, the outer ring be located in nut and between the fastening object and be arranged in jointly on the screw rod, an axial end socket of nut and outer ring rivets together, and the outer ring can rotate relatively with nut, this modular nut, its nut and outer ring can relatively rotate, when having solved the bolt assembly and having tightened, the easy scratch of nut the phenomenon of fastening body surface; But this modular nut, do not solve nut problem loosening and that come off easily takes place, and loosening nut, make the modular nut discontinuity easily, thereby the bolt assembly is produced great shearing force, cause the outer ring impaired and shortened working life of modular nut.
Summary of the invention
The purpose of this invention is to provide a kind of increasing the service life and the difficult nut that becomes flexible and come off.
Technological scheme of the present invention is such: a kind of nut, comprise nut and outer ring, and an axial end pivot bush unit of outer ring is on the respective end of nut, and an axial end of outer ring is provided with the limit position part that can prevent that nut and outer ring are separated; Also comprise spring washer, be provided with the holding cavity that holds above-mentioned spring washer in the above-mentioned outer ring, above-mentioned spring washer is located in the above-mentioned holding cavity and is arranged on the screw rod of bolt assembly, and the inwall that above-mentioned holding cavity is positioned at the axial the other end place of above-mentioned outer ring is provided with the suitable faying surface of end face with the respective end of above-mentioned spring washer.
The end face of above-mentioned spring washer and the corresponding end of above-mentioned faying surface is the arc surface of projection, and above-mentioned faying surface is the recessed arc surface suitable with the arc surface of above-mentioned projection.
Above-mentioned faying surface is the plane, and the end face of the end that above-mentioned spring washer and faying surface are suitable is and the suitable plane of above-mentioned faying surface.
The axial the other end of above-mentioned outer ring is provided with the hollow cylindrical sheath that fills up between the screw rod of being located at above-mentioned spring washer and bolt assembly.
Have the gap between the interior edge of the outer wall of above-mentioned hollow cylindrical sheath and above-mentioned spring washer, the width of this gap is 0.1mm～0.2mm.
Above-mentioned hollow cylindrical sheath has the extension part of the axial the other end that stretches out above-mentioned outer ring.
After adopting technique scheme, a kind of nut of the present invention, when the bolt assembly when tightening, nut is exerted pressure to the spring washer that is enclosed within on the screw rod, spring washer is compacted, makes the end face of spring washer respective end and suitable the fitting together and clamping screw rod of inwall of holding cavity respective end, thereby increases the pretightening force of nut and screw rod, make nut when being subjected to sharp pounding and irregular powerful the fluctuation, be difficult for loosening and obscission take place, prolonged the working life of nut; Because the faying surface that spring washer and holding cavity fit is an arc surface, have automatic positioning effect, nut and screw rod can be remained on the same shaft axis, simultaneously when fastening nut, the exterior edge face of spring washer is comparatively slick and sly, thereby is difficult for the inwall of incised wound holding cavity; Again because the axial the other end of outer ring is provided with the hollow cylindrical sheath that fills up between the screw rod of being located at spring washer and bolt assembly, the interior edge of spring washer can not contacted with the outside thread of screw rod, be difficult for like this making spring washer stuck, and make spring washer be difficult for producing internal displacement or distortion.
Description of drawings
Fig. 1 is the sectional view of the embodiment of the invention one;
Fig. 2 does not tighten preceding sectional view for the embodiment of the invention one;
Fig. 3 is the sectional view of the embodiment of the invention two;
Fig. 4 does not tighten preceding sectional view for the embodiment of the invention two.
Embodiment
Embodiment one:
A kind of nut of the present invention, embodiment one as shown in Figure 1, 2, comprise nut 1, outer ring 2 and spring washer 3, the outer of an axial end of nut 1 is provided with bulge loop 11, the respective end of outer ring 2 is sheathed on outside the bulge loop 11, has the holding cavity 21 that holds spring washer 3 in the outer ring 2, and the inside riveted in the end of the respective end of outer ring 2 forms limited ring 23, thereby it is movable to make that bulge loop 11 is limited in the holding cavity 21, can prevent that nut 1 breaks away from outer ring 2.Spring washer 3 is located in the holding cavity 21 and is arranged on the screw rod of bolt assembly, the inwall that holding cavity 21 is positioned at the axial the other end place of outer ring 2 is provided with the suitable faying surface 211 of end face with the respective end of spring washer 3, the end face of the end that spring washer 3 and faying surface 211 are suitable be protruding arc surface, and 211 of faying surfaces are the recessed arc surface suitable with the arc surface of projection.The axial the other end of outer ring is provided with the hollow cylindrical sheath 22 that fills up between the screw rod of being located at spring washer 3 and bolt assembly, has the gap that width is 0.1mm～0.2mm between the interior edge of the outer wall of hollow cylindrical sheath 22 and spring washer 3.
In when assembling, be inserted in spring washer 3 in the holding cavity 21 and be arranged on the screw rod of bolt assembly, the inside riveting of an axial end of outer ring 2 forms limited ring 23, thereby finishes assembling.When the bolt assembly when tightening, nut 1 is exerted pressure to the spring washer 3 that is enclosed within on the screw rod, spring washer 3 is compacted, the end face of an axial end that makes spring washer 3 is with the faying surface 211 suitable applyings of holding cavity 21 and clamping screw rod, thereby increase the pretightening force of nut 1 and screw rod, make nut when being subjected to sharp pounding and irregular powerful the fluctuation, be difficult for loosening and obscission take place, prolonged the working life of nut; Because the corresponding end-faces and the faying surface of spring washer 3 are arc surface, have automatic positioning effect, nut and screw rod can be remained on the same shaft axis, simultaneously when fastening nut 1, the exterior edge face of spring washer 3 is comparatively slick and sly, thereby is difficult for the inwall of incised wound holding cavity 21; Again because the axial the other end of outer ring is provided with the hollow cylindrical sheath 22 that fills up between the screw rod of being located at spring washer 3 and bolt assembly, the interior edge of spring washer 3 can not contacted with the outside thread of screw rod, be difficult for making spring washer 3 stuck like this, and make spring washer 3 be difficult for producing internal displacement or distortion; And when spring washer 3 is fitted on the faying surface 211 and hollow cylindrical sheath 22 have the gap that width is 0.1mm～0.2mm, when unclamping nut, spring washer 3 is difficult for making spring washer 3 stuck when cooperating with hollow cylindrical sheath 22 like this.
Embodiment two:
A kind of nut of the present invention, shown in Fig. 3,4, embodiment two only is with embodiment one difference: the inwall that holding cavity 21 is positioned at the axial the other end place of outer ring 2 is provided with the suitable faying surface 212 of end face with the respective end of spring washer 3, this faying surface 212 is the plane, and the end face of the suitable end of spring washer 3 and faying surface 212 is the plane suitable with faying surface 212.
A kind of nut of the present invention is applicable to different field such as machinery, electric power, automobile, railway, aviations.Among the present invention, hollow cylindrical sheath 22 also can have the extension part 24 of the axial the other end that stretches out outer ring 2, when nut uses on automotive tyre nut like this, extension part 24 can be inserted between tire screw rod and tyre rim hole in the existing gap, thereby makes bolt hole and the screw rod gap between the two very little.
Claims (6)
1. a nut comprises nut and outer ring, and an axial end pivot bush unit of outer ring is on the respective end of nut, and an axial end of outer ring is provided with the limit position part that can prevent that nut and outer ring are separated; It is characterized in that: also comprise spring washer, be provided with the holding cavity that holds above-mentioned spring washer in the above-mentioned outer ring, above-mentioned spring washer is located in the above-mentioned holding cavity and is arranged on the screw rod of bolt assembly, and the inwall that above-mentioned holding cavity is positioned at the axial the other end place of above-mentioned outer ring is provided with the suitable faying surface of end face with the respective end of above-mentioned spring washer.
2. a kind of nut according to claim 1 is characterized in that: the end face of above-mentioned spring washer and the corresponding end of above-mentioned faying surface is the arc surface of projection, and above-mentioned faying surface is the recessed arc surface suitable with the arc surface of above-mentioned projection.
3. a kind of nut according to claim 1 is characterized in that: above-mentioned faying surface is the plane, and the end face of the end that above-mentioned spring washer and faying surface are suitable is and the suitable plane of above-mentioned faying surface.
4. a kind of nut according to claim 1 is characterized in that: the axial the other end of above-mentioned outer ring is provided with the hollow cylindrical sheath that fills up between the screw rod of being located at above-mentioned spring washer and bolt assembly.
5. a kind of nut according to claim 4 is characterized in that: have the gap between the interior edge of the outer wall of above-mentioned hollow cylindrical sheath and above-mentioned spring washer, the width of this gap is 0.1mm～0.2mm.
6. a kind of nut according to claim 4 is characterized in that: above-mentioned hollow cylindrical sheath has the extension part of the axial the other end that stretches out above-mentioned outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102137243A CN101709736B (en) | 2009-12-02 | 2009-12-02 | Nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102137243A CN101709736B (en) | 2009-12-02 | 2009-12-02 | Nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101709736A CN101709736A (en) | 2010-05-19 |
| CN101709736B true CN101709736B (en) | 2011-08-10 |
Family
ID=42402536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102137243A Active CN101709736B (en) | 2009-12-02 | 2009-12-02 | Nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101709736B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107586A (en) * | 2019-05-05 | 2019-08-09 | 海盐海马五金有限公司 | A kind of spring nut that anti-loosening performance is good |
| CN110394500A (en) * | 2019-07-11 | 2019-11-01 | 深圳市协和辉五金制品有限公司 | A kind of automatic both-end beveler |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2364267Y (en) * | 1999-02-09 | 2000-02-16 | 吴汉忠 | Check bolt for tire of car |
| US6435791B1 (en) * | 2000-05-19 | 2002-08-20 | Maclean-Fogg Company | Wheel fastener assemblies |
| CN2658459Y (en) * | 2003-12-01 | 2004-11-24 | 仝合泽 | High-strength anti-theft abnormal-shaped fastener |
| CN2668917Y (en) * | 2004-01-15 | 2005-01-05 | 江卫东 | Fully-closed tyre nut |
| EP1837532A1 (en) * | 2005-01-11 | 2007-09-26 | Topy Kogyo Kabushiki Kaisha | Axial force controlling nut assembly |
| CN200989361Y (en) * | 2006-12-04 | 2007-12-12 | 成都天保机械制造有限公司 | Pressure locking nut |
| CN201106611Y (en) * | 2007-11-08 | 2008-08-27 | 柯惠忠 | Orientation combined tire nut |
| CN201636174U (en) * | 2009-12-02 | 2010-11-17 | 杨聪辉 | Nut |
-
2009
- 2009-12-02 CN CN2009102137243A patent/CN101709736B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2364267Y (en) * | 1999-02-09 | 2000-02-16 | 吴汉忠 | Check bolt for tire of car |
| US6435791B1 (en) * | 2000-05-19 | 2002-08-20 | Maclean-Fogg Company | Wheel fastener assemblies |
| CN2658459Y (en) * | 2003-12-01 | 2004-11-24 | 仝合泽 | High-strength anti-theft abnormal-shaped fastener |
| CN2668917Y (en) * | 2004-01-15 | 2005-01-05 | 江卫东 | Fully-closed tyre nut |
| EP1837532A1 (en) * | 2005-01-11 | 2007-09-26 | Topy Kogyo Kabushiki Kaisha | Axial force controlling nut assembly |
| CN200989361Y (en) * | 2006-12-04 | 2007-12-12 | 成都天保机械制造有限公司 | Pressure locking nut |
| CN201106611Y (en) * | 2007-11-08 | 2008-08-27 | 柯惠忠 | Orientation combined tire nut |
| CN201636174U (en) * | 2009-12-02 | 2010-11-17 | 杨聪辉 | Nut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101709736A (en) | 2010-05-19 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |