CN104019110A - Nut - Google Patents
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- Publication number
- CN104019110A CN104019110A CN201410261323.6A CN201410261323A CN104019110A CN 104019110 A CN104019110 A CN 104019110A CN 201410261323 A CN201410261323 A CN 201410261323A CN 104019110 A CN104019110 A CN 104019110A
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- China
- Prior art keywords
- nut
- hole
- nut body
- diameter
- external diameter
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- 230000007704 transition Effects 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 22
- 230000000694 effects Effects 0.000 description 8
- 230000005489 elastic deformation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a nut. The nut comprises nut bodies comprising the first nut body and the second nut body located above the first nut body, wherein the external diameter of the second nut body is smaller than that of the first nut body, the lower portion of the first nut body is provided with a transition cylinder with the external diameter being smaller than the diameter of the inscribed circle of the first nut body, the bottom of the transition cylinder is provided with an installation piece extending outwards, the lower bottom surface of the installation piece is an arch-shaped surface concaved inwards, and a threaded through hole of an oval structure is arranged in the nut bodies. As the threaded through hole is an oval hole, the nut is difficult to screw up or unscrew in screwing up and unscrewing processes, the nut falls off from a stud hardly after being screwed up because of inconformity of the hole diameters under the condition that vibration is serious, and use safe performance of a machine is improved. The nut is good in looseness preventing performance and long in service life and has good use value and economical value.
Description
Technical field
The present invention relates to a kind of nut, belong to nut technical field.
Background technique
In machinery industry, between component, using nut fitted bolt to be fixed is a kind of common technological means.The ordinary construction of nut is exactly that 1 circular tapped hole is set in hexagon nut body.But the nut of this form is on space flight, air material in using process, and vibration severity very while aloft use due to apparatus, is used back nut just easily to occur loosening for a long time, finally drops.This is very fatal danger for aviation apparatus.And existing nut is in use, is often tightened or is unscrewed by instruments such as spanners, use for a long time six corner angle of back nut to be gradually worn, use the instruments such as spanner cannot clamp nut, also just cannot be tightened or be unscrewed.Particularly, in field of aerospace, the nut specification using wants high a lot of than plain nut, and its cost is also relatively high, if only because the corner angle of nut are worn just to be replaced, its waste is also larger.
Summary of the invention
The object of the invention is to: a kind of nut is provided, this type nut is because its tapped hole is ellipsoidal structure, make it after tightening, under the larger Environmental Conditions of vibration, be all not easy to come off, and this type nut has solved existing nut after corner angle are worn, the problem such as be difficult to tighten or unscrew, in using process, the anti-loosening property of this type nut is very good.
Technological scheme of the present invention: a kind of nut, include nut main body, nut main body comprises the first nut, the second nut is positioned at the first nut top, and the external diameter of the second nut is less than the external diameter of the first nut, and the first nut bottom is provided with transition circle cylinder, the cylindrical external diameter of transition is less than the first nut inscribe diameter of a circle, be 1 installation sheet to external diffusion in transition circle cylinder bottom, the bottom surface of installation sheet is the arcuate surface concaving, and is provided with the tapped through hole of ellipsoidal structure in nut body.
Above-mentioned nut, the difference between oval maximum diameter and the minimum diameter of the tapped through hole of described ellipsoidal structure is: 0.3-2mm.
Above-mentioned nut, described the second height of nut is 0.6～1.2 times of the first height of nut.
Above-mentioned nut, the cylindrical height of described transition is the first height of nut 1/4-1/2.
Beneficial effect of the present invention: tapped through hole of the present invention is slotted eye while making, thereby make this type nut in being screwed into or unscrewing process, be difficult to tighten or unscrew, after tightening in vibration more severe in the situation that, this type nut also can be because inconsistent being very difficult in aperture splits away off from hitching post, thereby improved the Safety performance of instrumentation, and be provided with the first nut and the second nut, because this type nut screwing clamping all needs larger active force with unscrewing, therefore the first nut its corner angle under larger active force effect are easy to be worn, can use the second nut screwing clamping this time or unscrew nut, avoid nut to lose efficacy, increased the working life of nut, and be provided with transition circle cylinder and installation sheet, installation sheet one can use as pad, in nut screwing clamping process, just do not need extra pad, moreover because its bottom surface is arch structure, be screwed in process, its bottom surface deforms after contacting with part surface, produce elastic deformation force, together with this elastic deformation force makes to fit tightly between nut surface and part surface, it is large that frictional force between the two becomes, in the time that nut is subject to stronger vibration, still there is good anti-loosening property, and under the effect of larger screwing force, in installation sheet and excessively cylindrical body rundown process, its structure can deform, this distortion can make its inner screw thread also deform thereupon, can make screw thread hold tightly on bolt or screw flight.Nut anti-loosening of the present invention is functional, and working life is long, has good use value and economic value.
Brief description of the drawings
Accompanying drawing 1 is main TV structure schematic diagram of the present invention;
Accompanying drawing 2 is plan structure schematic diagram of the present invention;
Reference character: 1-the first nut, 2-the second nut, 3-transition circle cylinder, 4-installation sheet, 5-bottom surface, 6-tapped through hole.
Embodiment
Embodiments of the invention: a kind of nut, as shown in accompanying drawing 1-2, include integrated nut main body, this nut main body comprises the first nut 1, and the second nut 2 is positioned at the top of the first nut 1, when making, the external diameter of the second nut 2 is less than the external diameter of the first nut 1, be provided with transition circle cylinder 3 in the first nut 1 bottom, the external diameter of transition circle cylinder 3 is less than the first nut 1 inscribe diameter of a circle, in transition circle cylinder 3 bottoms be 1 to external diffusion, the installation sheet 4 of similar horn strucutre, the arcuate surface of the bottom surface 5 of installation sheet 4 for concaving, and in nut body, be provided with the tapped through hole 6 of ellipsoidal structure.Its tapped hole of nut now using is at present circular port, and this circular tapped hole, being inserted in circular hitching post process, only need to a little firmly can be tightened on hitching post.But vibrating under very severe environment, such nut is easy to just split away off under the effect that is subject to vibration force.Therefore nut of the present invention is provided with the tapped through hole 6 of ellipsoidal structure in its nut body, the tapped through hole 6 of ellipsoidal structure is in rundown process, need to nut could be screwed into by the screwing force larger than round thread hole, once but after being screwed into, the screw thread of the tapped through hole 6 of this ellipsoidal structure will tightly be held tightly on bolt or screw flight, unscrewing in process equally also needs very large strength to be unscrewed, so when this nut uses under the more serious environment of vibration, be also not easy to come off because of vibration.In nut screwing clamping process, after using spanner or other tool holding to live the first nut 1, nut is screwed in hitching post, because tapped through hole 6 is oval, nut all needs the active force larger than round thread hole to be tightened or to unscrew in tightening or unscrewing process, under the effect of this larger active force, the corner angle of the first nut 1 can be worn very soon, now use spanner to clamp the first nut 1 and be difficult to tighten or unscrew nut body, this time, can use spanner to clamp the second nut 2, can tighten or unscrew nut.And little than the first nut 1 of the second nut 2 external diameters, such setting is when using spanner to clamp the second nut 2, the upper surface of the first nut 1 can support the bottom surface of spanner, avoids spanner unsettled, is difficult to operation.Because the active force that this type nut needs is larger, if there is no the good strong point, is difficult to have an effect and tightens or unscrew nut.And be provided with transition circle cylinder 3, be installation sheet 4 in transition circle cylinder 3 bottoms, installation sheet 4 in use one is screwed in process at nut, can use as pad, like this nut has not just needed extra pad in rundown process, moreover under the effect of larger screwing force, because the bottom surface 5 of installation sheet 4 is the arch structure that concave, such structure makes nut being screwed in process, after contacting with part surface, the bottom surface 5 of installation sheet 4 deforms, produce elastic deformation force, together with this elastic deformation force makes to fit tightly between bottom surface 5 and part surface, it is large that frictional force between the two becomes, in the time that nut is subject to stronger vibration, still there is good anti-loosening property, and under the effect of larger screwing force, in installation sheet 4 and excessively cylindrical body 3 rundown process, its structure can deform, this distortion can make its inner screw thread also deform thereupon, can make screw thread hold tightly on bolt or screw flight.Installation sheet 4 not being set directly to the bottom surface of the first nut 1, is that the structure of the first nut 1 that screwing force is difficult to make in rundown process deforms, thereby its internal whorl is deformed because the cylinder of the first nut is thicker.And be provided with one section of transition circle cylinder 3, because the external diameter of this transition circle cylinder 3 is less than the inscribe diameter of a circle of the first nut 1, under the effect of screwing force, the structure of this transition circle cylinder 3 and installation sheet 4 can deform, this distortion can drive its inner screw thread also to deform, thereby make nut in rundown process, screw thread is held tightly on bolt or screw flight, has improved nut anti-loosening performance.
Difference between oval maximum diameter and the minimum diameter of the tapped through hole 6 of ellipsoidal structure is: 0.3-2mm.Difference is too little, and anti-loosening property is not fine, if difference is too large, one processes more difficultly, and two are screwed in process and are difficult to be screwed into.
The second nut 2 is highly 0.6～1.2 times of the first nut 1 height, and what use because main is that the first nut 1, the second nut 2 uses under the first nut 1 failure conditions, therefore that its height need not arrange is too high, in order to avoid waste material improves cost of production.Too short, insufficient strength when use, and highly too low be difficult to clamp.
The height of transition circle cylinder 3 is 1/4-1/2 of the first height of nut, in highly too small rundown process, cannot make the structure of transition circle cylinder 3 deform, and excessive height, transition circle cylinder 3 is after nut screwing clamping, its distortion is excessive, easily causes nut fracture failure.
Claims (4)
1. a nut, it is characterized in that: include nut main body, nut main body comprises the first nut (1), the second nut (2) is positioned at the first nut (1) top, the external diameter of the second nut (2) is less than the external diameter of the first nut (1), the first nut (1) bottom is provided with transition circle cylinder (3), the external diameter of transition circle cylinder (3) is less than the first nut (1) inscribe diameter of a circle, be 1 installation sheet to external diffusion (4) in transition circle cylinder (3) bottom, the arcuate surface of the bottom surface (5) of installation sheet (4) for concaving, in nut body, be provided with the tapped through hole (6) of ellipsoidal structure.
2. nut according to claim 1, is characterized in that: the difference between oval maximum diameter and the minimum diameter of the tapped through hole (6) of described ellipsoidal structure is: 0.3-2mm.
3. nut according to claim 1, is characterized in that: described the second nut (2) is highly 0.6～1.2 times of the first nut (1) height.
4. nut according to claim 1, is characterized in that: the height of described transition circle cylinder (3) is 1/4-1/2 of the first nut (1) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261323.6A CN104019110A (en) | 2014-06-12 | 2014-06-12 | Nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261323.6A CN104019110A (en) | 2014-06-12 | 2014-06-12 | Nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104019110A true CN104019110A (en) | 2014-09-03 |
Family
ID=51436033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410261323.6A Pending CN104019110A (en) | 2014-06-12 | 2014-06-12 | Nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104019110A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405754A (en) * | 2014-12-11 | 2015-03-11 | 中国航空工业标准件制造有限责任公司 | Self locking blind hole nut |
| CN104454862A (en) * | 2014-09-30 | 2015-03-25 | 太原科技大学 | Rigidity-variable combined nut connector bearing axial loads |
| CN112443552A (en) * | 2019-09-04 | 2021-03-05 | 浙江吉利汽车研究院有限公司 | a rivet nut |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3301298A (en) * | 1966-07-06 | 1967-01-31 | Lamson And Sessions Company | Flanged lock nut |
| CA1119440A (en) * | 1978-06-16 | 1982-03-09 | John P. Koltiska | Locknut fastener |
| FR2496784A1 (en) * | 1980-12-22 | 1982-06-25 | Securits France Ste Nle | Lock nut for bolt - has conical extension with oval thread on standard nut |
| US5915902A (en) * | 1997-09-19 | 1999-06-29 | Illinois Tool Works Inc. | Undeformed lock nut with slot |
| CN2589723Y (en) * | 2002-12-19 | 2003-12-03 | 谢社长 | Built-in bolt |
| CN201671943U (en) * | 2010-05-20 | 2010-12-15 | 贵州航天精工制造有限公司 | Self-locking nut with triangular squeezing end surfaces |
| CN203272396U (en) * | 2013-05-06 | 2013-11-06 | 邵祥顺 | Locking nut |
| CN204025296U (en) * | 2014-06-12 | 2014-12-17 | 费小芳 | A kind of nut |
-
2014
- 2014-06-12 CN CN201410261323.6A patent/CN104019110A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3301298A (en) * | 1966-07-06 | 1967-01-31 | Lamson And Sessions Company | Flanged lock nut |
| CA1119440A (en) * | 1978-06-16 | 1982-03-09 | John P. Koltiska | Locknut fastener |
| FR2496784A1 (en) * | 1980-12-22 | 1982-06-25 | Securits France Ste Nle | Lock nut for bolt - has conical extension with oval thread on standard nut |
| US5915902A (en) * | 1997-09-19 | 1999-06-29 | Illinois Tool Works Inc. | Undeformed lock nut with slot |
| CN2589723Y (en) * | 2002-12-19 | 2003-12-03 | 谢社长 | Built-in bolt |
| CN201671943U (en) * | 2010-05-20 | 2010-12-15 | 贵州航天精工制造有限公司 | Self-locking nut with triangular squeezing end surfaces |
| CN203272396U (en) * | 2013-05-06 | 2013-11-06 | 邵祥顺 | Locking nut |
| CN204025296U (en) * | 2014-06-12 | 2014-12-17 | 费小芳 | A kind of nut |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454862A (en) * | 2014-09-30 | 2015-03-25 | 太原科技大学 | Rigidity-variable combined nut connector bearing axial loads |
| CN104454862B (en) * | 2014-09-30 | 2016-07-20 | 太原科技大学 | A kind of variation rigidity compound nut bearing axial load connects |
| CN104405754A (en) * | 2014-12-11 | 2015-03-11 | 中国航空工业标准件制造有限责任公司 | Self locking blind hole nut |
| CN112443552A (en) * | 2019-09-04 | 2021-03-05 | 浙江吉利汽车研究院有限公司 | a rivet nut |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140903 |