CN108119520A - A kind of self-locking nut - Google Patents
A kind of self-locking nut Download PDFInfo
- Publication number
- CN108119520A CN108119520A CN201711276116.8A CN201711276116A CN108119520A CN 108119520 A CN108119520 A CN 108119520A CN 201711276116 A CN201711276116 A CN 201711276116A CN 108119520 A CN108119520 A CN 108119520A
- Authority
- CN
- China
- Prior art keywords
- self
- locking nut
- head
- valves
- nut according
- 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.)
- Pending
Links
- 230000007704 transition Effects 0.000 claims description 21
- 238000009434 installation Methods 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000004826 seaming Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- 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
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/38—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt with a second part of the screw-thread which may be resiliently mounted
-
- 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
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
- F16B23/0038—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially prismatic with up to six edges, e.g. triangular, square, pentagonal, Allen-type cross-sections
-
- 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
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention provides a kind of self-locking nut, nut body forms the center through hole along axis around axis, screw thread is equipped in the center through hole, the nut body afterbody is the tight lock part being made of six six side's valves, the six sides valve is evenly distributed with around axis, interval trough is formed between adjacent six sides valve, the six sides valve medial surface is provided with the screw thread, the three-dimensional cross sectional shape that the six sides valve outer circumferential surface is encircled into is similar to hexagon, position of the interval trough on the section is located at the hexagonal corner, and the six sides valve rolls oblique tightening from root to end to axis.Further, there is the protrusion towards inside on the section in the middle part of six side's valves.The present invention has high loop cycle lock ability, high vibration resistance ability, and adaptable to installation position.
Description
Technical field
The invention belongs to anchor design manufacturing technology fields, and in particular to a kind of Self-locking screw nut.
Background technology
Mechanized equipment installing area can usually use self-locking nut, but the self-locking circulating cycle of conventional self-locking nut all compared with
It is low, usually there was only 5-15 locking cycle period.Vibration resistance ability is also poor, is usually that 1500-3000 height carries, low load is shaken
Dynamic cycle period.With the development of China's aerospace field New Equipments, high cycle locking property can be provided there is an urgent need to a kind of
Energy, the self-locking nut of high vibration resistance.In addition, the installation position in aerospace common apparatus and critical equipment is often with one
The inclined-plane at constant inclination angle, conventional self-locking nut are also difficult to the installation requirements for meeting this privileged sites.
The content of the invention
The present invention provides a kind of self-locking nut, has high loop cycle lock ability, high vibration resistance ability, and to mounting portion
Position is adaptable.
The self-locking nut of the present invention, nut body form the center through hole along axis around axis, are set in the center through hole
There is screw thread, the nut body afterbody is the tight lock part being made of six six side's valves, and the six sides valve is evenly distributed with around axis, adjacent six sides valve
Between form interval trough, the six sides valve medial surface is provided with the screw thread, and the six sides valve outer circumferential surface is encircled into three-dimensional
Cross sectional shape is located at the hexagonal corner, six side similar to hexagon, position of the interval trough on the section
Valve rolls oblique tightening from root to end to axis.Further, there is the protrusion towards inside on the section in the middle part of six side's valves.
Wherein, the groove bottom of the interval trough is in arc-shaped.
Head is connected in front of the tight lock part, the head is equipped with transition connection portion.Preferably, the transition connection
Portion is in transition circle cambered surface or transition circular conical surface.
Further, the head center, holding tank is provided inwardly with from end face.
Dismounting driving portion is additionally provided between the tight lock part and head, the dismounting driving portion passes through the transition connection portion
It is connected with head.
The dismounting driving portion is annular in shape and is evenly equipped with cancave cambered surface around axis.Preferably, the cancave cambered surface is six, and described
The center of cancave cambered surface is corresponding with the position of the interval trough.
Preferably, the head is annular in shape, and inclined universal globe is equipped with backward from end on head.
The nut of the present invention is integrally formed design.
Compared with prior art, the beneficial effects of the present invention are：(1) design of tight lock part solves common self-locking nut
The problem of Xun Huan locking cycle is few (only 5-15 times), and height carries, low load vibration cycles cycle low (only 1500-3000 times), it is real
Existing high loop cycle lock ability (400-1000 locking cycle period), (height carries vibration resistance, low carry 60000-100000 times is shaken
Dynamic cycle period), and improve disassembly efficiency；(2) design of head transition connection portion connects caused by effectively reducing architectural difference
Socket part position stress concentration improves nut strength, endurance life and service life；(3) design of driving portion is dismounted in auxiliary high nut
While performance, effectively mounting surface is protected；(4) design of head holding tank eliminates installation position out-of-flatness and brings
Defective mounting；(5) design of universal globe so that nut installation is adaptable, can meet simultaneously in plane and inclined-plane
The problem of installation.
Description of the drawings
The attached drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the planar structure schematic diagram of one embodiment of the present invention, wherein, 1-1 is left view, and 1-2 is main view
Figure, 1-3 is sectional view, and 1-4 is top view；
Fig. 2-3 is the stereogram of Fig. 1 structures；
Fig. 4 is a kind of planar structure schematic diagram of preferred embodiment of the present invention, wherein, 4-1 is left view, based on 4-2
View, 4-3 are sectional view, and 4-4 is top view；
Fig. 5-6 is the stereogram of Fig. 4 structures；
Fig. 7 is nut cargo handling process schematic diagram of the present invention, wherein, 7-1 is installation process schematic diagram, and 7-2 is disassembly process
Schematic diagram；
Fig. 8 is the scheme of installation of nut of the present invention in the plane；
Fig. 9 is scheme of installation of the nut of the present invention on inclined-plane；
Figure 10 is tight lock part closing in process schematic diagram；
Figure 11 is six side's valve of nut state change schematic diagram in section before and after closing in.
Specific embodiment
In order to be better understood from the present invention, the present invention is further described with reference to specific attached drawing.It needs to refer to
Go out, in the case where there is no conflict, the feature between different embodiments can be mutually combined.
The self-locking nut (Fig. 1-6) of the present invention, nut body form the center through hole along axis around axis, and the center is logical
Screw thread 1 is equipped in hole, the nut body afterbody is the tight lock part 2 being made of six six side's valves 21, and the six sides valve 21 is equal around axis
Cloth, forms interval trough 22 between adjacent six sides valve 21, and six sides valve, 21 medial surface is provided with the screw thread 1, the six sides valve
For the three-dimensional cross sectional shape that 21 outer circumferential surfaces are encircled into similar to hexagon, position of the interval trough 22 on the section is located at institute
Hexagonal corner is stated, the six sides valve 21 rolls the tiltedly tightening (width of same interval trough 22 from root to end to axis
Also become narrow gradually from root to end).Further, there is the protrusion 23 towards inside (to scheme at six side's valves, 21 middle part on the section
11)。
The setting shunk to axis axle center of above-mentioned tight lock part 2 can make the purpose of nut generation self-locking moment.Six side's valves
After 21 roll tiltedly tightening from root to end to axis, the screw thread 1 in six side's valves 21 is also followed to be shunk to nut axle center, after contraction
The central diameter of screw thread is less than the central diameter of normal screw thread so that when the bolt of nut and same specification is used cooperatively, when bolt is screwed onto locking
During portion 2, in the case where the support of bolt thread is swollen, spring back six side's valves 21 of inside (axle center) tightening, the direction opposite to nut axle center
It is strutted by bolt, while the screw thread of nut with bolt is write screw thread and still fitted closely and contacts under the action of elastic force, reaches lock
Tight purpose (Fig. 7-1).It when demounting bolt (Fig. 7-2), reversely loosers a bolt, when bolt thread completely disengages tight lock part 2
After screw thread, six side's valves 21 are restored under the action of elastic force to the state tiltedly tightened of axis inclination, the screw thread in six side's valves 21
1 also in company with the state shunk to nut axle center is returned to together, and nut reaches self-locking state.
The structure shunk to axis axle center of above-mentioned tight lock part 2 can be obtained by bottling technique and seaming tool 6,
After six side's valves parallel with axis are processed by common process, by carrying out closing in operation to six side's valves so that six side's valves end
It holds to axis and rolls tiltedly tightening.As shown in Figure 10, seaming tool can apply pressure simultaneously from the mediad of six side's valves 21, make
The inwardly tightening simultaneously of six six side's valve ends, generate centripetal plastic deformation, the spacing between two neighboring six sides valve 21 will
Reduce, just reduced closer to the end spacing of six side's valves it is more, just reduced closer to the root spacing of six side's valves it is fewer, this
The elasticity of kind structure is stronger, is more conducive to nut and realizes high loop cycle lock ability.Further, since the stress position of six side's valves 21
It installs and is placed in its section center so that six side's valves, 21 middle part axis direction, six 21 liang of side's valve side angles are inclined to by leading squeeze
Portion is then inclined to axis direction in rear crimp, so as to form the protrusion 23 (Figure 11) at six side's valves, 21 middle part.This structure causes
When being screwed into bolt, screw thread on bolt first contacts in advance with the screw thread in the protrusion 23 at six side's valves, 21 middle part, not with six sides
The thread contacts of two side corner sections of valve 21 or contact be less, and then the wedge angle at nut hexagonal position will not scraping bolt spiral shell
The purpose of line, the speed of bolt thread central diameter reduction are delayed, the elastic construction of no-float, and realization reaches high circulation locking
The purpose in cycle.Common self-locking nut does not possess the bulge-structure at 21 middle part of tightening structure and six side's valves of six side's valves 21, receives
Mouth rear thread is deformed, and has scraping action to the pitch diameter of thread of bolt, greatly reduces the vibration resistance circulating cycle of nut
Phase.
Wherein, the groove bottom of the interval trough 22 is in arc-shaped, i.e., the connection root between adjacent six sides valve 21 is in circular arc
Transition, the elasticity of this structure more preferably, are less susceptible in vibration occasion from the root of six side's valves 21 and the appearance of the bottom of interval trough 22
Fatigue crack, so as to fulfill the purpose of high circulation vibration period.
(Fig. 1-3) in some embodiments, 2 front of tight lock part are connected with head 4, and the head 4 is equipped with transition
Connecting portion 42 can play good transition connection function, reduce what is be easy to cause due to the rigid connection between different parts
Stress concentration.Preferably, transition connection portion 42 is in transition circle cambered surface in this example；Head body 44 is in hexagonal columnar, is easily installed
Instrument is gripped.Further, 4 center of head, holding tank 43 is provided inwardly with from end face, after installation is complete,
The screw-thread ending position of bolt is accommodated, while can realize the peace that adjust installation portion position is brought due to the became uneven of thickness of interlayer
Dress problem.
(Fig. 4-6) in some embodiments is additionally provided with dismounting driving portion 3 between the tight lock part 2 and head 4, described to tear open
Dress driving portion 3 is connected by the transition connection portion 42 with head 4；4 center of head, can also inwardly be equipped with from end face
Holding tank 43；Preferably, transition connection portion 42 is in transition circular conical surface in this example.
The dismounting driving portion 3 is annular in shape and is evenly equipped with cancave cambered surface 31 around axis.Preferably, the cancave cambered surface 31 is six,
And the center of the cancave cambered surface 31 is corresponding with the position of the interval trough 22.Dismounting driving portion 3 play connection tight lock part 2 and
Structural transition acts on；The setting of cancave cambered surface 31 is easy to use installation tool to be gripped, such as spanner twisting can be used as to make
The dismounting of narrow space is realized at position, is smooth surface additionally, due to cancave cambered surface 31, stress concentration can be prevented to nut
It damages；The setting of six cancave cambered surfaces 31 and its position relationship to be formed between six side's valves, 21 root and dismounting driving portion 3
Good transition connection, further aids in interval trough 22 to unload the stress of six side's valves, 21 flexible deformation, auxiliary improves nut
High circulation locks cycle and vibration resistance cycle period.
As being further improved for these embodiments, the head 4 is annular in shape, is equipped with and tilts backward from end on head 4
Universal globe 41.In case of need, the cooperation of spheric washer 5 that can be separately provided with one makes the universal globe 41
With spheric washer 5, which is equipped with, can reach mounting location with 41 matched Internal Spherical Surface of universal globe, the two cooperation and adapt to by force
Purpose, can not only install in the plane (Fig. 8), can also realize on inclined-plane installation (Fig. 9).It is pointed out that this
The nut of invention can not also coordinate spheric washer 5 to be used alone, especially in Plane Installation.The universal globe of nut during installation
41 are in close contact with the Internal Spherical Surface of spheric washer 5, can realize and certain folder is presented between nut axis and the normal of mounting surface
It installs at angle (angle≤8 ° under normal circumstances).
The nut of the present invention is integrally formed design, with higher structural strength and structural stability.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of self-locking nut, nut body forms the center through hole along axis around axis, and screw thread is equipped in the center through hole
(1), the nut body afterbody is the tight lock part (2) being made of six six side's valves (21), and the six sides valve (21) is evenly distributed with around axis, phase
Interval trough (22) is formed between adjacent six side's valves (21), six sides valve (21) medial surface is provided with the screw thread (1), six side
The three-dimensional cross sectional shape that valve (21) outer circumferential surface is encircled into is similar to hexagon, position of the interval trough (22) on the section
Positioned at the hexagonal corner, the six sides valve (21) rolls oblique tightening from root to end to axis.
2. self-locking nut according to claim 1, which is characterized in that there is direction on the section in the middle part of six side's valves (21)
The protrusion (23) of inside.
3. self-locking nut according to claim 1, which is characterized in that the groove bottom of the interval trough (22) is in arc-shaped.
4. self-locking nut according to claim 1, which is characterized in that head (4) is connected in front of the tight lock part (2),
The head (4) is equipped with transition connection portion (42).
5. self-locking nut according to claim 4, which is characterized in that the transition connection portion (42) in transition circle cambered surface or
Transition circular conical surface.
6. self-locking nut according to claim 4, which is characterized in that head (4) center is provided inwardly with holding from end face
Receive slot (43).
7. self-locking nut according to claim 4, which is characterized in that be additionally provided between the tight lock part (2) and head (4)
Driving portion (3) is dismounted, the dismounting driving portion (3) is connected by the transition connection portion (42) with head (4).
8. self-locking nut according to claim 7, which is characterized in that the dismounting driving portion (3) is annular in shape and equal around axis
It is furnished with cancave cambered surface (31).Preferably, the cancave cambered surface (31) is six, and the center of the cancave cambered surface (31) and the interval trough
(22) position is corresponding.
9. self-locking nut according to claim 4, which is characterized in that the head (4) annularly, is held certainly on head (4)
Portion is equipped with inclined universal globe (41) backward.
10. self-locking nut according to claim 1, which is characterized in that nut body is integrally formed design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711276116.8A CN108119520A (en) | 2017-12-06 | 2017-12-06 | A kind of self-locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711276116.8A CN108119520A (en) | 2017-12-06 | 2017-12-06 | A kind of self-locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108119520A true CN108119520A (en) | 2018-06-05 |
Family
ID=62228893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711276116.8A Pending CN108119520A (en) | 2017-12-06 | 2017-12-06 | A kind of self-locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108119520A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392263A (en) * | 2020-11-04 | 2021-02-23 | 蒋昌俊 | Aluminum plate curtain wall installation construction method |
| CN114271921A (en) * | 2021-12-21 | 2022-04-05 | 河南省洛阳正骨医院（河南省骨科医院） | Fracture reduction fixer under femoral trochanter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090011410U (en) * | 2008-05-06 | 2009-11-11 | 주식회사 세화 | Self-locking nut |
| CN202579570U (en) * | 2012-05-10 | 2012-12-05 | 河南航天精工制造有限公司 | Hexagonal slotting nut and threaded connection structure provided with same |
| CN203717568U (en) * | 2013-12-06 | 2014-07-16 | 神讯电脑(昆山)有限公司 | Expansion nut |
| CN205744824U (en) * | 2016-07-17 | 2016-11-30 | 叶雨玲 | Cone pressure tight-holding type stop nut |
| CN106567883A (en) * | 2015-10-09 | 2017-04-19 | 宝应县宝鸿汽配厂 | Nut clamping mechanism for vehicle assembly |
| CN107091269A (en) * | 2017-06-16 | 2017-08-25 | 航天精工股份有限公司 | A kind of self-locking nut installed available for inclined-plane |
-
2017
- 2017-12-06 CN CN201711276116.8A patent/CN108119520A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090011410U (en) * | 2008-05-06 | 2009-11-11 | 주식회사 세화 | Self-locking nut |
| CN202579570U (en) * | 2012-05-10 | 2012-12-05 | 河南航天精工制造有限公司 | Hexagonal slotting nut and threaded connection structure provided with same |
| CN203717568U (en) * | 2013-12-06 | 2014-07-16 | 神讯电脑(昆山)有限公司 | Expansion nut |
| CN106567883A (en) * | 2015-10-09 | 2017-04-19 | 宝应县宝鸿汽配厂 | Nut clamping mechanism for vehicle assembly |
| CN205744824U (en) * | 2016-07-17 | 2016-11-30 | 叶雨玲 | Cone pressure tight-holding type stop nut |
| CN107091269A (en) * | 2017-06-16 | 2017-08-25 | 航天精工股份有限公司 | A kind of self-locking nut installed available for inclined-plane |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392263A (en) * | 2020-11-04 | 2021-02-23 | 蒋昌俊 | Aluminum plate curtain wall installation construction method |
| CN114271921A (en) * | 2021-12-21 | 2022-04-05 | 河南省洛阳正骨医院（河南省骨科医院） | Fracture reduction fixer under femoral trochanter |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20180605 |