CN107939808A - A kind of hexagonal fluting self-locking nut - Google Patents
A kind of hexagonal fluting self-locking nut Download PDFInfo
- Publication number
- CN107939808A CN107939808A CN201711274777.7A CN201711274777A CN107939808A CN 107939808 A CN107939808 A CN 107939808A CN 201711274777 A CN201711274777 A CN 201711274777A CN 107939808 A CN107939808 A CN 107939808A
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- CN
- China
- Prior art keywords
- hexagonal
- self
- locking nut
- nut
- sides valve
- 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.)
- Granted
Links
- 230000007704 transition Effects 0.000 claims description 21
- 238000009434 installation Methods 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 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
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 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
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- 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
- F16B39/22—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
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The present invention provides a kind of hexagonal fluting self-locking nut, nut body forms the center through hole along axis around axis, screw thread is equipped with 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, the six sides valve rolls oblique tightening from root to end to axis.Further, there is the protrusion towards inner side 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 field, and in particular to a kind of Novel hexagonal fluting self-locking 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 1500-3000 times high load, low load vibration
Cycle period.With the development of China's aerospace field New Equipments, there is an urgent need to one kind can provide high cycle locking property,
The self-locking nut of high vibration resistance.In addition, the installation position in aerospace common apparatus and critical equipment is often with certain
The inclined-plane at 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 hexagonal fluting self-locking nut, has high loop cycle lock ability, high vibration resistance ability, and
It is adaptable to installation position.
The hexagonal fluting self-locking nut of the present invention, nut body form the center through hole along axis, the center around axis
Screw thread is equipped with through hole, 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, phase
Interval trough is formed between adjacent six side's valves, 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 be located at the hexagonal corner similar to hexagon, position of the interval trough on the section,
The six sides valve rolls oblique tightening from root to end to axis；Head is connected with front of the tight lock part, is set on the head
There is transition connection portion, the tight lock part is connected by the transition connection portion with head transition.
Further, there is the protrusion towards inner side on the section in the middle part of six side's valves.
Wherein, the groove bottom of the interval trough is in arc-shaped.
Wherein, the transition connection portion is in transition circle cambered surface.
Wherein, the head body is in hexagonal columnar.
Wherein, the head center, holding tank is provided inwardly with from end face.
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 circulation 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 drive division 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 make it that nut installation is adaptable, can meet at the same time in plane and inclined-plane
The problem of installation.
Brief 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
Apply example and its explanation is used to explain the present invention, do not form inappropriate limitation 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 right view, and 1-2 is front view,
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, 1-1 is right view, based on 1-2
View, 1-3 are sectional view, and 1-4 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.
Embodiment
In order to be better understood from the present invention, the present invention is further described with reference to specific attached drawing.Need to refer to
Go out, in the case where there is no conflict, the feature between different embodiments can be mutually combined.
The hexagonal fluting self-locking nut (Fig. 1-6) of the present invention, nut body form the center through hole along axis, institute around axis
State and be equipped with screw thread 1 in center through hole, the nut body afterbody is the tight lock part 2 being made of six six side's valves 21, the six sides valve
21 are evenly distributed with around axis, and interval trough 22 is formed between adjacent six sides valve 21, and six sides valve, 21 medial surface is provided with the screw thread 1, institute
Three-dimensional cross sectional shape that six side's valves, 21 outer circumferential surface is encircled into is stated similar to hexagon, position of the interval trough 22 on the section
Setting in the hexagonal corner, the six sides valve 21 rolls tiltedly tightening (same interval trough from root to end to axis
22 width also becomes narrow gradually from root to end).Further, the middle part of six side's valve 21 has towards the convex of inner side on the section
Play 23 (Figure 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
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).When demounting bolt (Fig. 7-2), reversely looser a bolt, when bolt thread completely disengages tight lock part 2
After screw thread, six side's valves 21 return to axis under the action of elastic force and roll the state tiltedly tightened, the screw thread in six side's valves 21
1 state also shunk in company with being returned to together to nut axle center, nut reach 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, logical
Cross after common process processes six side's valves parallel with axis, by carrying out closing in operation to six side's valves so that six side's valve ends
Tiltedly tightening is rolled to axis.As shown in Figure 10, seaming tool can apply pressure at the same time from the mediad of six side's valves 21 so that
The inwardly tightening at the same time of six six side's valve ends, produces centripetal plastic deformation, and the spacing between two neighboring six sides valve 21 will subtract
It is few, 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, it is this
Structure it is elastic stronger, be more conducive to nut realize high loop cycle lock ability.Further, since the forced position of six side's valves 21 is set
It is placed in its section center so that axis direction is inclined in six side's valves, 21 middle part by leading extruding, and six 21 liang of side's valve side corner sections are then
Axis direction is inclined in rear crimp, so as to form the protrusion 23 (Figure 11) at the middle part of six side's valve 21.This structure causes when stubborn
When entering bolt, screw thread on bolt is first contacted with the screw thread in the protrusion 23 at the middle part of six side's valve 21 in advance, not with six side's valves 21
Two side corner sections thread contact or contact it is less, and then the wedge angle at nut hexagonal position will not scraping bolt thread
Purpose, the speed of bolt thread central diameter reduction are delayed, the elastic construction of no-float, and realization reaches the high circulation locking cycle
Purpose.Common self-locking nut does not possess the tightening structure of six side's valves 21 and the bulge-structure at the middle part of six side's valve 21, after closing in
Screw thread is deformed, and has scraping action to the pitch diameter of thread of bolt, greatly reduces the vibration resistance cycle period of nut.
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 to from the root of six side's valves 21 and the appearance of the bottom of interval trough 22 in vibration occasion
Fatigue crack, so as to fulfill the purpose of high circulation vibration period.
(Fig. 1-3) in certain embodiments, the front of tight lock part 2 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 by 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, the center of head 4, 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 certain embodiments, is additionally provided with dismounting drive division 3 between the tight lock part 2 and head 4, described to tear open
Dress drive division 3 is connected by the transition connection portion 42 with head 4；The center of head 4, can also inwardly be equipped with from end face and hold
Receive groove 43；Preferably, transition connection portion 42 is in transition circular conical surface in this example.
The dismounting drive division 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 drive division 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
Position, realizes the dismounting of narrow space, is smooth surface additionally, due to cancave cambered surface 31, and stress concentration can be prevented to nut
Cause damage；The setting of six cancave cambered surfaces 31 and its position relationship to be formed between six side's valves, 21 root and dismounting drive division 3
Good transition connection, further aids in interval trough 22 to unload the stress of six side's valves, 21 elastic deformation, auxiliary improves nut
High circulation locks cycle and vibration resistance cycle period.
Further as these embodiments is improved, and the head 4 is annular in shape, is equipped with and is tilted backward from end on head 4
Universal globe 41.In case of need, the spheric washer 5 that can be separately provided with one coordinates and makes the universal globe 41
With spheric washer 5 is equipped with can be with 41 matched Internal Spherical Surface of universal globe, the two cooperation can reach mounting location and adapt to by force
Purpose, not only can in the plane install (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, it is possible to achieve certain folder is presented between nut axis and the normal of mounting surface
Install at angle (angle≤8 ° under normal circumstances).
The nut of the present invention is integrally formed design, has 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 modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (7)
- The self-locking nut 1. a kind of hexagonal is slotted, nut body form the center through hole along axis around axis, in the center through hole Equipped with screw thread (1), the nut body afterbody is the tight lock part (2) that is made of six six side's valves (21), the six sides valve (21) around Axis is evenly distributed with, and interval trough (22) is formed between adjacent six sides valve (21), and six sides valve (21) medial surface is provided with the screw thread (1), the three-dimensional cross sectional shape that six sides valve (21) outer circumferential surface is encircled into is similar to hexagon, and the interval trough (22) is described Position on section is located at the hexagonal corner, and the six sides valve (21) rolls oblique tightening from root to end to axis； Head (4) is connected with front of the tight lock part (2), the head (4) is equipped with transition connection portion (42), the tight lock part (2) It is connected by the transition connection portion (42) with head (4) transition.
- The self-locking nut 2. hexagonal according to claim 1 is slotted, it is characterised in that on the section in the middle part of six side's valves (21) With the protrusion (23) towards inner side.
- The self-locking nut 3. hexagonal according to claim 1 is slotted, it is characterised in that the groove bottom of the interval trough (22) is in Arc-shaped.
- The self-locking nut 4. hexagonal according to claim 1 is slotted, it is characterised in that the transition connection portion (42) is in transition Arc surface.
- The self-locking nut 5. hexagonal according to claim 1 is slotted, it is characterised in that the head body (44) is in hexagonal prism Shape.
- The self-locking nut 6. hexagonal according to claim 1 is slotted, it is characterised in that head (4) center, from end face to It is interior to be equipped with holding tank (43).
- The self-locking nut 7. hexagonal according to claim 1 is slotted, it is characterised in that nut body is integrally formed design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274777.7A CN107939808B (en) | 2017-12-06 | 2017-12-06 | Hexagonal slotting self-locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274777.7A CN107939808B (en) | 2017-12-06 | 2017-12-06 | Hexagonal slotting self-locking nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107939808A true CN107939808A (en) | 2018-04-20 |
| CN107939808B CN107939808B (en) | 2020-05-12 |
Family
ID=61945824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711274777.7A Active CN107939808B (en) | 2017-12-06 | 2017-12-06 | Hexagonal slotting self-locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939808B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654104A (en) * | 2018-12-12 | 2019-04-19 | 中国北方发动机研究所(天津) | A kind of turbine rotor locking nut |
| CN113606236A (en) * | 2021-08-23 | 2021-11-05 | 航天精工股份有限公司 | Novel supporting plate self-locking nut with excellent locking performance |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1312273A1 (en) * | 1985-06-24 | 1987-05-23 | Предприятие П/Я В-2905 | Nut |
| CN1205402A (en) * | 1997-07-10 | 1999-01-20 | 哈德洛克工业株式会社 | Loosing and method of making same |
| US20040202525A1 (en) * | 2003-04-09 | 2004-10-14 | Cosenza Frank J. | Lock nut member |
| CN202659687U (en) * | 2012-04-13 | 2013-01-09 | 科勒(中国)投资有限公司 | Locking nut convenient to install |
| CN205207387U (en) * | 2015-12-29 | 2016-05-04 | 广东富华重工制造有限公司 | Warp and compress tightly formula self -locking nut |
| CN205278062U (en) * | 2015-12-14 | 2016-06-01 | 施成方 | Locking dirt -proof auto -lock nut component |
| CN205478838U (en) * | 2016-02-02 | 2016-08-17 | 璟丰工业股份有限公司 | Nut structure |
-
2017
- 2017-12-06 CN CN201711274777.7A patent/CN107939808B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1312273A1 (en) * | 1985-06-24 | 1987-05-23 | Предприятие П/Я В-2905 | Nut |
| CN1205402A (en) * | 1997-07-10 | 1999-01-20 | 哈德洛克工业株式会社 | Loosing and method of making same |
| US20040202525A1 (en) * | 2003-04-09 | 2004-10-14 | Cosenza Frank J. | Lock nut member |
| CN202659687U (en) * | 2012-04-13 | 2013-01-09 | 科勒(中国)投资有限公司 | Locking nut convenient to install |
| CN205278062U (en) * | 2015-12-14 | 2016-06-01 | 施成方 | Locking dirt -proof auto -lock nut component |
| CN205207387U (en) * | 2015-12-29 | 2016-05-04 | 广东富华重工制造有限公司 | Warp and compress tightly formula self -locking nut |
| CN205478838U (en) * | 2016-02-02 | 2016-08-17 | 璟丰工业股份有限公司 | Nut structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654104A (en) * | 2018-12-12 | 2019-04-19 | 中国北方发动机研究所(天津) | A kind of turbine rotor locking nut |
| CN113606236A (en) * | 2021-08-23 | 2021-11-05 | 航天精工股份有限公司 | Novel supporting plate self-locking nut with excellent locking performance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107939808B (en) | 2020-05-12 |
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