CN107228114A - Strengthen the locking fastener of axial compression of resistance to shock - Google Patents
Strengthen the locking fastener of axial compression of resistance to shock Download PDFInfo
- Publication number
- CN107228114A CN107228114A CN201710468542.5A CN201710468542A CN107228114A CN 107228114 A CN107228114 A CN 107228114A CN 201710468542 A CN201710468542 A CN 201710468542A CN 107228114 A CN107228114 A CN 107228114A
- Authority
- CN
- China
- Prior art keywords
- nut
- thread
- locking
- groove
- bolt
- 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
- 230000006835 compression Effects 0.000 title claims abstract description 16
- 238000007906 compression Methods 0.000 title claims abstract description 16
- 230000035939 shock Effects 0.000 title claims abstract description 16
- 238000005728 strengthening Methods 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims abstract description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 5
- 239000011707 mineral Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 13
- 230000003014 reinforcing effect Effects 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
- F16B35/048—Specially-shaped necks
-
- 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
- F16B39/30—Locking exclusively by special shape of the screw-thread
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a kind of locking fastener of axial compression for strengthening resistance to shock, including bolt, mother nut, locking nut, the mother nut and bolt, it is connected through a screw thread respectively between locking nut and mother nut, the bolt includes head and screw rod, the head and the connecting place edge of screw rod are arranged to arc transition, the locking nut internal thread is deformation fine thread, the mother nut is by preceding g. slice header, mid-section threads connecting portion and endpiece variant part composition, the fluting direction and angle that the endpiece variant part is combined provided with groove are identical with the hand of spiral and angle of the bolt thread, technical scheme realize more than 3,000,000 times industrial and minerals of average vibration useful lives and without being broken or release phenomenon, life-span reaches 2 times of original life-span, reduce product maintenance cost, improve the economy of product.
Description
Technical field
Prevent elastic the present invention relates to a kind of locking fastener, more particularly to a kind of axial compression with high resistance to shock
It is fixedly mounted with and puts.
Background technology
Filled in application publication number in CN106351936A patent document, to disclose a kind of locking fastening of axial compression formula
Put, the need for improving product anti-loosening property, adapt to high standard high safety and other complex environment operating modes, the axial compression formula is prevented
Loose fastener includes bolt, mother nut, locking nut, and mother nut is deformed by preceding g. slice header, mid-section threads connecting portion and endpiece
Portion is constituted, and the endpiece variant part of mother nut is combined provided with groove, and groove combination includes upper groove and low groove, and upper groove includes straight
Line segment groove, ball recess and arc groove；Low groove includes straightway groove and hemispherical groove；The interior spiral shell of locking nut
Line is set to deform fine thread, and tail end end face is provided with the seal face fitted with the endpiece variant part of mother nut, the technology
Although scheme, which can be brought, realizes preferable shock-proof check performance and product service life, program technology is in longtime running
In high ferro etc. vibration operating mode in, resistance to shock is merely able to reach the service life of 1,500,000 times, for product maintenance cost still
It is higher, and the locking property of product still has the space further lifted.For problem above, the present invention propose reinforcing it is locking and
The technical scheme of resistance to shock, to expect further to make, product is more reliable, more economical, the life-span is longer.
The content of the invention
Instant invention overcomes deficiency of the prior art, there is provided a kind of locking fastening of axial compression for strengthening resistance to shock
Device.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：One kind reinforcing resistance to shock
The locking fastener of axial compression, including bolt, mother nut, locking nut, the mother nut and bolt, locking nut and master
It is connected through a screw thread respectively between nut, the bolt includes head and screw rod, the connecting place edge of the head and screw rod is set
Arc transition is set to, the arc radius is 0.4~1mm, and screw flight bottom footpath angle is arranged to bottom footpath fillet, the bottom footpath
Radius of corner is 0.1~0.4mm, and the screw flight tooth form bottom footpath is the 90%~100% of the ultimate maximum of 6g precision；It is described
Locking nut inner ring is provided with internal thread, and the locking nut internal thread is deformation fine thread；The mother nut by preceding g. slice header,
Mid-section threads connecting portion and endpiece variant part composition, the mid-section threads connecting portion are provided with mother nut external screw thread, the mother nut
External screw thread matches with the internal thread of the locking nut inner ring；The endpiece variant part is combined provided with groove, the groove group
Conjunction includes groove groups and low groove group, the fluting direction and angle of the groove groups and low groove group with the bolt spiral shell
The hand of spiral of line is identical with angle.
Preferably, the locking nut internal thread is deformation fine thread, the tooth bottom of the deformation fine thread is set
There is tapered ramp.
Preferably, the arc radius of the connecting place of the head and screw rod is 0.6mm or 0.7mm, the screw flight
Bottom footpath radius of corner be 0.2mm, the screw flight tooth form bottom footpath for 6g precision ultimate maximum 98%~100%.
Preferably, the groove groups are 1 upper groove, the low groove group is 1 low groove.
Preferably, the fluting of the groove groups and low groove group is each provided at the endpiece variant part inner ring screw thread of mother nut
Tooth bottom position.
Compared with prior art, it is an advantage of the invention that：Bolt employs head and the connecting place edge of screw rod and is arranged to
Arc transition realizes mechanical strength reinforcement, and screw flight bottom footpath angle is arranged to bottom footpath fillet and further enhances thread root section
Face area, it is ensured that screw thread is not easy to be worn and enhance the anti-fatigue ability of screw thread, screw flight tooth in vibration processes
Type bottom footpath is the 98%~100% of the ultimate maximum of 6g precision, can be maximized screw rod effective cross-section；In locking nut
Screw thread is deformation fine thread, and the tooth bottom of the deformation fine thread can effectively strengthen locking property provided with tapered ramp；
The fluting direction of the groove groups and low groove group and angle identical, the institute with the hand of spiral and angle of the bolt thread
The tooth bottom position that fluting is each provided at the endpiece variant part inner ring screw thread of mother nut is stated, can effectively increase endpiece variant part free
Deflection is compressed, endpiece variant part is farthest reduced and rigidly obstructs, realize the locking between enhancing mother nut and bolt
Energy；In summary, under the compound action of the technical scheme more than, the locking fastener of axial compression of reinforcing resistance to shock can
, without being broken or releasing phenomenon, the locking property of the product is realized to realize more than 3,000,000 times industrial and mineral vibration useful lives of average
It can strengthen, Acceptable life reaches 2 times of original life-span, reduces the economy of product maintenance cost product, make
Product it is relatively reliable, economic and practical, be highly suitable for railway, vehicle, Aeronautics and Astronautics and with vibration operating mode important work
Journey field, is also in the various fields of static industrial and mineral suitable for national economy.
Brief description of the drawings
Fig. 1 is the bolt arrangement schematic diagram of the embodiment of the present invention.
Fig. 2 is the mother nut structural representation of the embodiment of the present invention.
Fig. 3 is the locking nut structure schematic diagram of the embodiment of the present invention.
Fig. 4 is the partial enlarged drawing in I portions in Fig. 1.
Fig. 5 is the partial enlarged drawing in J portions in Fig. 1.
Fig. 6 is the partial enlarged drawing in K portions in Fig. 3.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 1~Fig. 6, a kind of locking fastener of axial compression for strengthening resistance to shock, including bolt 1, main spiral shell
Mother 2, locking nut 3, are connected through a screw thread respectively between the mother nut 2 and bolt 1, locking nut 3 and mother nut 2.It is described
Bolt 1 includes head 101 and screw rod 102, and the connecting place edge of the head 101 and screw rod 102 is arranged to the transition of circular arc 1022,
The radius of circular arc 1022 is 0.6mm, and the core diameter of thread angle of screw rod 1 is arranged to bottom footpath fillet 1021, bottom footpath fillet
1021 radiuses are 0.2mm, and the form of thread bottom footpath of screw rod 1 is the 98% of the ultimate maximum of 6g precision；The locking nut 3
Inner ring is provided with internal thread, and the internal thread of locking nut 2 is deformation fine thread, and the tooth bottom of the deformation fine thread is provided with
Tapered ramp 3001；The mother nut 2 is made up of preceding g. slice header 201, mid-section threads connecting portion 202 and endpiece variant part 203, institute
Mid-section threads connecting portion 202 is stated provided with mother nut external screw thread, the interior spiral shell of the mother nut external screw thread and the inner ring of locking nut 3
Line matches；The endpiece variant part 203 is provided with upper groove and low groove, the fluting direction and angle of the upper groove and low groove
Degree is identical with the hand of spiral and angle of the screw thread of bolt 1, and the fluting of the upper groove and low groove is each provided at mother nut 2
The inner ring screw thread of endpiece variant part 203 tooth bottom position.
In embodiments of the present invention, bolt 1 employs the connecting place edge of head 101 and screw rod 102 and is arranged to radius and is
The transition of 0.6mm circular arcs 1022 realizes mechanical strength reinforcement, certainly, can also use 0.7mm's in the bolt of large-size
Arc transition, then can more cause the mechanical bulk strength matching of bolt；Screw flight bottom footpath angle is arranged to bottom footpath fillet 1021 and enters one
Step enhances thread root area of section, it is ensured that screw thread is not easy to be worn and enhance the anti-tired of screw thread in vibration processes
Labor ability；The form of thread bottom footpath of screw rod 1 is the 98% of the ultimate maximum of 6g precision, can make the effective cross-section of screw rod 1 close to most
Bigization is so as to the mechanical strength of the screw thread position of lift-bolt 1；The internal thread of locking nut 3 is deformation fine thread, and the deformation is thin
The tooth bottom of pitch thread is provided with tapered ramp 3001, during locking nut 3 is tightened, tapered ramp 3001 and mid-section threads
The external screw thread formation extruding of connecting portion 202, can effectively strengthen locking property；The fluting direction of the upper groove and low groove and
Angle is identical with the hand of spiral and angle of the screw thread of bolt 1, and the fluting of the upper groove and low groove is each provided at main spiral shell
The tooth bottom position of female inner ring screw thread of endpiece variant part 203, can effectively increase endpiece variant part and freely compress deflection, most
Reduce endpiece variant part to big degree rigidly to obstruct, realize the locking property between enhancing mother nut 2 and bolt 1.In summary,
Under the compound effectiveness effect of technical scheme more than, the locking fastener of axial compression of reinforcing resistance to shock can be realized
More than 3,000,000 times industrial and minerals of value vibrate useful lives and without being broken or releasing phenomenon, realize the anti-loosening property reinforcing of the product, have
Effect service life reaches 2 times of original life-span, reduces product maintenance cost, improves the economy of product so that product is more
Plus it is reliable, economic and practical, it is highly suitable for railway, vehicle, Aeronautics and Astronautics and the important engineering field with vibration operating mode,
Also the various fields of static industrial and mineral are in suitable for national economy.
In addition to the above embodiments, other not described embodiments also should be within protection scope of the present invention.Herein
Described specific embodiment is only that to spirit explanation for example of the invention, those skilled in the art can be with
Various modifications or supplement are made to described specific embodiment or is substituted using similar mode, but without departing from this
The spirit of invention surmounts scope defined in appended claims.Although being illustrated herein through specific term,
The possibility using other terms is not excluded for, is used for the purpose of easily describing and explaining the sheet of the present invention using these terms
Matter, is construed as any additional limitation and is all disagreed with spirit of the present invention.
Claims (5)
1. a kind of locking fastener of axial compression for strengthening resistance to shock, including bolt, mother nut, locking nut, the master
It is connected through a screw thread respectively between nut and bolt, locking nut and mother nut, it is characterised in that：
The bolt includes head and screw rod, and the connecting place edge of the head and screw rod is arranged to arc transition, the circular arc
Radius is 0.4~1mm, and screw flight bottom footpath angle is arranged to bottom footpath fillet, and bottom footpath radius of corner is 0.1~0.4mm,
The screw flight tooth form bottom footpath is the 90%~100% of the ultimate maximum of 6g precision；
The locking nut inner ring is provided with internal thread, and the locking nut internal thread is deformation fine thread；
The mother nut is made up of preceding g. slice header, mid-section threads connecting portion and endpiece variant part, and the mid-section threads connecting portion is set
There is mother nut external screw thread, the mother nut external screw thread matches with the internal thread of the locking nut inner ring；The endpiece deformation
Portion is combined provided with groove, and the groove combination includes groove groups and low groove group, and the groove groups are opened with low groove group
Groove direction and angle are identical with the hand of spiral and angle of the bolt thread.
2. a kind of locking fastener of axial compression for strengthening resistance to shock according to claim 1, it is characterised in that：Institute
It is deformation fine thread to state locking nut internal thread, and the tooth bottom of the deformation fine thread is provided with tapered ramp.
3. a kind of locking fastener of axial compression for strengthening resistance to shock according to claim 1, it is characterised in that：Institute
The arc radius for stating the connecting place of head and screw rod is 0.6mm or 0.7mm, and the bottom footpath radius of corner of the screw flight is
0.2mm, the screw flight tooth form bottom footpath is the 98%~100% of the ultimate maximum of 6g precision.
4. a kind of locking fastener of axial compression for strengthening resistance to shock according to claim 1, it is characterised in that：Institute
It is 1 upper groove to state groove groups, and the low groove group is 1 low groove.
5. a kind of locking fastener of axial compression for strengthening resistance to shock according to claim 1, it is characterised in that：Institute
State groove groups and low groove group fluting be each provided at mother nut endpiece variant part inner ring screw thread tooth bottom position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710468542.5A CN107228114A (en) | 2017-06-20 | 2017-06-20 | Strengthen the locking fastener of axial compression of resistance to shock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710468542.5A CN107228114A (en) | 2017-06-20 | 2017-06-20 | Strengthen the locking fastener of axial compression of resistance to shock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107228114A true CN107228114A (en) | 2017-10-03 |
Family
ID=59935027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710468542.5A Pending CN107228114A (en) | 2017-06-20 | 2017-06-20 | Strengthen the locking fastener of axial compression of resistance to shock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107228114A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021126351A1 (en) * | 2019-12-18 | 2021-06-24 | Raytheon Company | Locking push-pull fastener assembly |
-
2017
- 2017-06-20 CN CN201710468542.5A patent/CN107228114A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021126351A1 (en) * | 2019-12-18 | 2021-06-24 | Raytheon Company | Locking push-pull fastener assembly |
| US11536310B2 (en) | 2019-12-18 | 2022-12-27 | Raytheon Company | Locking push-pull fastener assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171003 |
|
| WD01 | Invention patent application deemed withdrawn after publication |