CN108662005A - A kind of special eccentric locking nut - Google Patents
A kind of special eccentric locking nut Download PDFInfo
- Publication number
- CN108662005A CN108662005A CN201810825558.1A CN201810825558A CN108662005A CN 108662005 A CN108662005 A CN 108662005A CN 201810825558 A CN201810825558 A CN 201810825558A CN 108662005 A CN108662005 A CN 108662005A
- Authority
- CN
- China
- Prior art keywords
- nut
- eccentric
- locking nut
- bolt
- locking
- 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.)
- Withdrawn
Links
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 230000002929 anti-fatigue Effects 0.000 abstract description 2
- 238000011900 installation process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
Abstract
The present invention relates to a kind of securing member more particularly to a kind of special eccentric locking nuts.The technical solution adopted by the present invention is：A kind of special eccentric locking nut, including locking nut, eccentric nut and bolt, the upper surface of eccentric nut has the boss upwardly extended, the lower face of locking nut is equipped with the recess hole coordinated with boss, the tooth bottom of internal thread on eccentric nut is formed with 30 degree of tapered ramp, and when bolt and eccentric nut are mutually tightened, the externally threaded cusp on bolt is withstood at the tapered ramp, the lower face of locking nut is equipped with washer, and washer is integrally formed with locking nut.It is an advantage of the invention that：There are higher coupling mechanism force and antifatigue anti seismic efficiency and anti-skidding, anti-dropout ability relative to traditional nut, the screw thread of bolt and nut is not damaged while locking, it is reusable, the noise of installation is very low, it is steady without friction in installation process, the impact to operator can be effectively reduced, the fatigue strength of operator is reduced.
Description
Technical field
The present invention relates to a kind of securing member more particularly to a kind of special eccentric locking nuts.
Background technology
The fastening means of plain bolt nut connection has the history of centuries, it is widely used in human being's production, life
Various aspects, because concerning the security of the lives and property, therefore bolted loosing Prevention Technology is always people studies the emphasis captured, but
Even to this day, various locking measures are all unsatisfactory, suffer from different degrees of defect.Therefore, it should which a kind of new skill is provided
Art scheme solves the above problems.
Invention content
The purpose of the present invention is：Against the above deficiency, a kind of reasonable for structure, good Camlock spiral shell of anti-loosing effect is provided
It is female.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of special eccentric locking nut, including locking nut and eccentric nut and with locking nut, eccentric nut
Matching used bolt, the upper surface of the eccentric nut have the boss upwardly extended, and the lower face of the locking nut is set
There are the recess hole coordinated with the boss, the central axis of the boss of eccentric nut different from the central axis where its screw thread
The heart, the central axis and the central axis where its screw thread of the recess hole on locking nut are concentric, the interior spiral shell on eccentric nut
The tooth bottom of line is formed with 30 degree of tapered ramp, when the bolt and eccentric nut are mutually tightened, the externally threaded tooth on bolt
At the tapered ramp, the lower face of the locking nut is equipped with washer on pinnacle, the washer and locking nut one at
Type.
Further technical solution is：
The thread tolerance of the bolt is 6H/6g.
The boss is cone boss, and the recess hole is conical socket.
It is furthermore preferred that
The boss is identical with the taper of recess hole.
Due to the application of above-mentioned technical proposal, the present invention has the following advantages that compared with prior art：
1, eccentric locking nut of the invention, since the tooth bottom of the internal thread on eccentric nut is formed with 30 degree of wedge shape
Inclined-plane, when bolt and eccentric nut are mutually tightened, the externally threaded cusp on bolt is withstood at the tapered ramp, to produce
Prodigious coupling mechanism force is given birth to.Due to the angulation change of internal thread thread form on eccentric nut, produced by making to be applied to and contacting between screw thread
Normal force and bolt contour be in 60 degree of angles, rather than 30 degree of angles as regular screw threads.Obvious eccentric nut screw thread normal direction
Pressure is far longer than fastening pressure, and therefore, generated locking frictional force also just greatly increases.Meanwhile it is outer on bolt
When the internal thread with eccentric nut is engaged, external screw thread is fully engaged against screw thread cusp with internal thread, greatly increases its contact
Area makes being distributed in the helix overall length of contact for uniform load, when avoiding common standard threaded engagement, 80% or more
Full payload concentrates the phenomenon on the flank for acting on the first and second teeth.Therefore the eccentric locking nut of the present invention not only overcomes
Plain nut is easy to the disadvantage from pine under vibrating conditions, but also can prolong the service life.
2, eccentric locking nut of the invention is equipped with washer, and washer and locking nut on the lower face of locking nut
It is integrally formed, such structure design, the pulling force bigger that on the one hand can bear compared to common nut, firmness is more preferable；
On the other hand due to being provided with washer on the lower face of locking nut, when installation locking nut, spanner would not touch
Already installed eccentric nut, the operability of entire operation is just greatly improved in this.
Description of the drawings
Attached drawing 1 is schematic structural view of the invention.
Attached drawing 2 is eccentric nut dimensional structure diagram.
Attached drawing 3 is locking nut dimensional structure diagram.
In the figures above：1, locking nut, 2, eccentric nut, 3, bolt, 4, boss, 5, recess hole, 6, tapered ramp, 7,
Washer.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and embodiments：
Embodiment one：
As shown in Figs. 1-3, a kind of special eccentric locking nut of the present invention, including locking nut 1 and eccentric nut 2 and
With locking nut, the matching used bolt 3 of eccentric nut, the upper surface of the eccentric nut 2 has the boss 4 upwardly extended,
The lower face of the locking nut 1 is equipped with the recess hole 5 that coordinate with the boss 4, the central axis of the boss of eccentric nut 2 and
Central axis decentraction where its screw thread, central axis and the central shaft where its screw thread of the recess hole 5 on locking nut 1
Line is concentric, and the tooth bottom of the internal thread on eccentric nut 2 is formed with 30 degree of tapered ramp 6, the bolt 3 and eccentric nut phase
When mutually tightening, the externally threaded cusp on bolt 3 is withstood at the tapered ramp 6, and the lower face of the locking nut 1 is equipped with
Washer 7, the washer 7 are integrally formed with locking nut 1.
Preferably, second embodiment as the present invention, the present embodiment is further limiting to embodiment one, described
The thread tolerance of bolt is 6H/6g.
Preferably, the third embodiment as the present invention, the present embodiment is also further limiting to embodiment one, institute
It is cone boss to state boss 4, and the recess hole 5 is conical socket and boss 4 is identical with the taper of recess hole 5.
The eccentric locking nut of the present invention, carries out vibration test, plain nut occurs as soon as loosening, double spiral shells for 20 seconds at normal temperatures
Mother only occurs as soon as loosening in 30 seconds.On stringent vibration experiment machine, plain nut first loosens, secondly when double nut, a few minutes
Loosening also occurs in the nut of U-shaped band spring clip afterwards, after eccentric locking nut only of the invention vibration is for 1 hours still
There is no loose phenomenon so, so it fundamentally solves the problems, such as loosening of the nut in forced vibration, falls off.
The eccentric locking nut of the present invention, unique structure make locking nut 1 and eccentric nut 2 respectively to connection
Bolt generates the radial coupling mechanism force of both direction up and down, connects 3 uniform force of bolt, coupling mechanism force is big, and the more vibrates the more tight, relatively
There are higher coupling mechanism force and an antifatigue anti seismic efficiency and anti-skidding, anti-dropout ability in traditional nut, locking while does not damage
The screw thread for hindering bolt and nut will not repeatedly be damaged through assembly and disassembly, reusable, while the noise installed is very low, installation
It is steady without friction in the process, the impact to operator can be effectively reduced, the fatigue strength of operator is reduced.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements or replace, these improve or replace
It should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of special eccentric locking nut, it is characterised in that：Including locking nut (1) and eccentric nut (2) and with lock
Tight nut, the matching used bolt of eccentric nut (3), the upper surface of the eccentric nut (2) have the boss upwardly extended
(4), the lower face of the locking nut (1) is equipped with the recess hole (5) coordinated with the boss (4), on eccentric nut (2)
The tooth bottom of internal thread is formed with 30 degree of tapered ramp (6), when the bolt (3) and eccentric nut are mutually tightened, on bolt (3)
Externally threaded cusp withstand at the tapered ramp (6), the lower face of the locking nut (1) is equipped with washer (7), described
Washer (7) is integrally formed with locking nut (1).
2. a kind of special eccentric locking nut according to claim 1, it is characterised in that：The screw thread of the bolt (3)
Tolerance is 6H/6g.
3. a kind of special eccentric locking nut according to claim 1, it is characterised in that：The boss (4) is taper
Boss, the recess hole (5) are conical socket.
4. a kind of special eccentric locking nut according to claim 3, it is characterised in that：The boss (4) and groove
The taper in hole (5) is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810825558.1A CN108662005A (en) | 2018-07-24 | 2018-07-24 | A kind of special eccentric locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810825558.1A CN108662005A (en) | 2018-07-24 | 2018-07-24 | A kind of special eccentric locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108662005A true CN108662005A (en) | 2018-10-16 |
Family
ID=63789461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810825558.1A Withdrawn CN108662005A (en) | 2018-07-24 | 2018-07-24 | A kind of special eccentric locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108662005A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118274A (en) * | 2019-06-06 | 2019-08-13 | 慎江阀门有限公司 | A kind of low temperature axial flow type check valve |
| CN110645254A (en) * | 2019-09-27 | 2020-01-03 | 周峰 | End face taper centering interlocking locknut external member |
| CN111237315A (en) * | 2019-12-30 | 2020-06-05 | 苏州国嘉记忆合金有限公司 | Shape memory alloy eccentric locking device and mounting method thereof |
| CN113172100A (en) * | 2021-04-27 | 2021-07-27 | 四川易尚天交实业有限公司 | Adjustable rolling guide and guard device for three-roller star-shaped precision rolling mill |
-
2018
- 2018-07-24 CN CN201810825558.1A patent/CN108662005A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118274A (en) * | 2019-06-06 | 2019-08-13 | 慎江阀门有限公司 | A kind of low temperature axial flow type check valve |
| CN110645254A (en) * | 2019-09-27 | 2020-01-03 | 周峰 | End face taper centering interlocking locknut external member |
| CN111237315A (en) * | 2019-12-30 | 2020-06-05 | 苏州国嘉记忆合金有限公司 | Shape memory alloy eccentric locking device and mounting method thereof |
| CN113172100A (en) * | 2021-04-27 | 2021-07-27 | 四川易尚天交实业有限公司 | Adjustable rolling guide and guard device for three-roller star-shaped precision rolling mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181016 |