CN106351936A - Axially compressed looseproof fastening device - Google Patents
Axially compressed looseproof fastening device Download PDFInfo
- Publication number
- CN106351936A CN106351936A CN201611049286.8A CN201611049286A CN106351936A CN 106351936 A CN106351936 A CN 106351936A CN 201611049286 A CN201611049286 A CN 201611049286A CN 106351936 A CN106351936 A CN 106351936A
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- Prior art keywords
- groove
- nut
- locking
- clamp device
- axial compression
- Prior art date
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- 230000006835 compression Effects 0.000 claims abstract description 19
- 238000007906 compression Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 5
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 4
- 208000031481 Pathologic Constriction Diseases 0.000 claims description 2
- 210000001215 vagina Anatomy 0.000 claims description 2
- 230000000703 anti-shock Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 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
- 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
- F16B39/126—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts causing radial forces on the bolt-shaft
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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
Abstract
The invention discloses an axially compressed looseproof fastening device to enhance the looseproof performance of products, adapt to high standards and high safety requirements and meet the requirements under complex environments and working conditions. The device comprises bolts, main nuts, locking nuts, wherein the main nut is composed of front portion head, middle section screw joint and tail deformed section. The tail deformed section of the main nut is provided with a groove combination which comprises upper groove and lower groove. The upper groove includes a straight line section groove, a spherical groove and an arc groove; the lower groove includes a straight line section groove and a semi-spherical groove; the female thread of the locking nut is configured to be fine pitch thread, an end surface of the tail is provided with a compression surface bound to the tail deformed section of the main nut. The technical scheme of the present invention can provide reliable anti-shock and looseproof performance, substantially prolong the service life of bolts and nuts. The device has the advantages of reusability, easy loading and unloading and the like and has wide applications.
Description
Technical field
The present invention relates to a kind of locknut, belong to locking fastening workpiece technical field.
Background technology
In productive life, the process that is linked and packed generally be unable to do without securing member, and securing member brings conveniently to mechanical industry.
In attachment fitting, bolt and nut connected mode is a kind of the most frequently used fastening structure.Machine using bolt and nut securing member
Tool in actual use, due to the impact of complex working condition, bolt and nut in the environment of frequent vibration and alternate load not
Self falling can be understood with avoiding, thus causing using dangerous.
Get loose problem for solving clamp device, the scientists and engineers of many countries have done substantial amounts of test and ground in the world
Study carefully, locking clamp device originates from abroad, generally embed, deform the methods such as screw thread, chemical gluing using locking plate, pin, nylon,
Delay the time that securing member voluntarily gets loose to a certain extent, but but do not tackled the problem at its root.Domestic existing
Anti-loose method is a lot, and one of which is non-removable anti-loose method, and it is using weld, bond or rush the modes such as a riveting can
Dismounting is threaded to be changed into non-dismountable threaded, belongs to more reliable traditional anti-loose method, but its shortcoming it is also obvious that
I.e. threaded fastener can not be reused, and when mounting and dismounting, operation bothers very much.Another way is using being mechanically fixed
Part carries out locking, and its principle is to be made between screw element and connected piece using mechanical fixed part or solid between screw element and screw element
Determine and lock, loosening to prevent, its shortcoming is to increase the weight being fastenedly connected, thus also resulting in the trouble manufacturing and installing,
Motor-driven installation can not be carried out, relatively costly.Also has a kind of locking mode of increasing friction force, it is to utilize to increase between screw thread or spiral shell
The frictional force of silk nut end face or increase the method for both frictional force simultaneously and to reach locking purpose, this anti-loose method can
Poor by property, also do not tackle the problem at its root, remain in maltilevel security hidden danger, all difficult adapt to high standard high safety and other
The needs of complex environment operating mode.
Authorization Notice No. is cn205298218u, the utility model of entitled " a kind of elastic uniform pressure type locknut "
Patent provides a kind of stop nut solution, and the rear of mother nut is designed with the elastic pressing part of groove combination, makes by it
Screw thread in the rear elastic pressing part of mother nut produces equally distributed frictional force with screw flight binding face in whole circumference direction,
Eliminate the stress raisers between screw thread, so that mother nut is ensure that when applying material mechanical performance permission locking torsion and be subject to
Frequently occur without loosening under the various adverse circumstances operating modes such as vibrations and alternate load, effective guarantee stress maximum position is led simultaneously
In the life-span of nut rear elastic pressing part internal whorl, realize the reuse of screw rod, mother nut and locking nut.But the master of the program
The design of nut rear elastic pressing part and locking nut also has room for promotion, more securely mother nut to be locked at spiral shell
On bolt.
Content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, provides a kind of axial compression formula locking clamp device, passes through
The helicitic texture of mother nut deformation position and locking nut is improved, is reached more excellent reliably locking purpose.
The present invention specifically employs following technical scheme:
The locking clamp device of axial compression formula, including bolt, mother nut, locking nut；Mother nut and bolt, locking nut
It is threaded connection respectively with mother nut, specifically, the inner ring of mother nut is provided with female thread i, this female thread i and bolt
External screw thread i matches, so that mother nut can be sheathed on bolt；The outer ring of mother nut is provided with external screw thread ii, this external screw thread
Ii is matched with the female thread ii of locking nut inner ring, so that locking nut can be sheathed on mother nut.
The inner ring of locking nut is provided with female thread ii, and this female thread ii is matched with the external screw thread ii of mother nut；This locking
The outside of nut is standard six side；The female thread ii of locking nut is preferably arranged to deform fine thread, the i.e. tooth of female thread ii
Type angle is deformation；The tail end end face of locking nut is provided with seal face, and this seal face is perpendicular to bolt axial direction, and seal face
Center is provided with through hole, and when locking nut is sheathed on mother nut, the seal face of locking nut can be become with the rear of mother nut
Shape portion fits.
Mother nut is made up of front g. slice header, mid-section threads connecting portion and rear variant part；Front g. slice header is standard six side；In
Section threaded joints are provided with mother nut external screw thread ii；Rear variant part is provided with groove combination, groove combination include upper groove with
The fluting direction of groove, this upper groove and low groove is each perpendicular to the axial direction of bolt；Whole upper groove deforms along mother nut rear
The circumference in portion is distributed, and it includes straightway groove, ball recess and arc groove, and wherein ball recess is on whole
The groove two ends of groove, between two ball recess, arc groove may be configured as one or two to arc groove, spherical female
It is connected by straightway groove between groove and arc groove, when arc groove is set to two, arc groove and arc groove
Between also by straightway groove connect；Whole low groove is distributed along the circumference of mother nut rear variant part, and it includes directly
Line segment groove and hemispherical groove, wherein hemispherical groove located at the groove two ends of whole low groove, two hemispherical groove it
Between connected by straightway groove.
Further, the concrete structure of the female thread ii of locking nut is, female thread ii is screw thread pair tooth form angular deformation screw thread,
Its tooth bottom is provided with tapered ramp, and the angle of this tapered ramp is preferably 30 degree；Mutually tighten when between locking nut and mother nut
When, the cusp of mother nut external screw thread ii can tightly withstand on the tapered ramp of female thread ii of locking nut, thus producing
Larger coupling mechanism force.Due to the Angulation changes of thread form, make to be applied to normal force produced by contact between screw thread and become 60 with bolt axis
Degree angle, rather than 30 degree of angles as regular screw threads, the deformation female thread ii normal pressure of therefore locking nut is far longer than fastening
Pressure, produced locking frictional force also just greatly increases.Meanwhile, the thread crest of mother nut external screw thread ii with locking nut
Deformation female thread ii occlusion when, be distributed in making uniform load in the helix total length of contact, it is to avoid regular screw threads occlusions
When more than 80% full payload concentrate act on the flank of the first and second teeth, hence in so that deformation spiral marking connection pair not only
Overcome common standard connection pair to be easy under vibration from loose shortcoming, but also can increase the service life.
Further, the straightway groove of upper groove, ball recess and arc groove be in approximately the same plane, low groove
Straightway groove and hemispherical groove in approximately the same plane；It is preferred that when the arc groove of upper groove is two, under
The position of two hemispherical groove of groove is preferably separately positioned on the underface of two arc grooves of upper groove.
Further, the upper groove of mother nut and low groove are centrosymmetric arrangement, and the groove depth of upper groove and low groove is (i.e. whole
Overall circumference on mother nut rear variant part for the individual groove) it is all higher than the radius of mother nut rear variant part endoporus, specific groove
Depth is preferably arranged to mother nut rear variant part internal bore radius and adds 1.5mm to 2.5mm.
Further, upper groove and low groove are recessed at the Major Diam of mother nut female thread i.
Further, low groove is at the root of the close mid-section threads connecting portion of rear variant part.
Further, the arc apex direction of the arc groove of upper groove is the direction away from low groove, the hemisphere of low groove
The protrusion direction of connected in star is the direction near upper groove.
Further, the aperture of the through hole of locking nut seal face is not less than the aperture of the through hole of mother nut, so that bolt energy
Pass through from this through hole.
Further, by ocr18ni9, a2-70 level (304) austenitic stainless steel body material is made, main spiral shell for bolt, locking nut
Mother by cr17ni14mo2, make by a4-80 level (316) austenitic stainless steel body material.
The operation principle of the present invention is that locking nut is sheathed on after mother nut, by screwing locking nut so that locking
The rear variant part of mother nut is close to and is extruded to the seal face of nut so that the direction of rear variant part g. slice header to before mother nut
Make power；Because rear variant part is provided with groove group, in the presence of the seal face of locking nut, mother nut rear variant part recessed
Groove deforms upon, and the female thread of this deformation groove can snap tight against the screw thread of bolt, thus reaching bolt and nut is tight
Solid effect.Because lower notches are provided with straightway groove, ball recess/hemispherical groove and arc groove, thus producing
Structural elastic deformation modulus, is finally reached reusable purpose.Wherein, the setting of straightway groove ensure that
The position of fluting is on the big footpath of screw thread；The setting of ball recess/hemispherical groove ensure that in mechanical movement, and elasticity becomes
Shape modulus controls in normal reciprocating motion and will not be deformed and follow the string；Again because screw thread has inclination angle, it is not provided with
Arc groove will be easily destroyed the thread form angle of screw thread, and the setting of arc groove can ensure that the slotting position of groove combination in spiral shell
On the big footpath of stricture of vagina.
Under preferred version, because the female thread ii of locking nut is deformation fine thread, locking nut is set in main spiral shell
When on female external screw thread ii, deformation fine thread can hold mother nut external screw thread ii tightly so that the seal face of locking nut can
Being fixed securely, thus realizing locking nut can axially suppress mother nut for a long time, also being reached while locking mother nut
Arrive the purpose of self-locking, the more one-step optimization locking functions of nut.
By adopting technique scheme, the present invention is capable of following technique effect:
1. on the one hand reliable shock-proof check performance: the present invention is capable of double locking, pass through recessed on mother nut
Groove is locked to the large-diameter thread of bolt, and the deformation screw thread of another aspect locking nut is locked to mother nut so that being led
Nut reaches self-locking when realizing clamping screw, and the performance of shock-proof check has been better achieved.
2. the principle according to the present invention, the present invention can lock to bolt in the case of not destroying screw thread auxiliary structure
Tightly, the service life of nut and bolt can therefore be significantly increased.
3. reusable: the groove group of mother nut serves the effect of elastic deformation, the therefore present invention can realize weight
Multiple use.
4. need not any auxiliary locking element, such as spring washer, locked spacer etc..This clamp device does not need appointing of the external world
What auxiliary element can reach the purpose of complete self-locking, i.e. mother nut clamping screw, and locking nut locks mother nut, reaches completely
The effect of self-locking.
5. convenient handling: the invention belongs to rotating freely type, just need to apply moment when finally tightening.
6., the invention belongs to the clamp device of type under unified central planning, specifications and models are adopted standard size, are matched with standard external.
7. the present invention is not changed by high temperature and is affected, on the parts that can be widely applied to require auto-lock function, such as
On the self-locking part that high-speed railway, space flight, ship, automobile etc. have high demands, dimensions is set according to actual needs.
Brief description
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is mother nut structural representation in the embodiment of the present invention.
Fig. 3 is i part partial enlarged drawing in Fig. 2.
Fig. 4 is j part partial enlarged drawing in Fig. 2.
Fig. 5 is locking nut structure schematic diagram in the embodiment of the present invention.
Fig. 6 is locking nut fine thread structural representation in the embodiment of the present invention.
In figure labelling represents: 1. bolt；2. mother nut；3. locking nut；4. packing ring；11. bolt external screw thread i；21. leading portions
Head；22. mid-section threads connecting portions；23. rear variant parts；24. mother nut female thread i；25. mother nut external screw thread ii；31. locks
Jack panel female thread ii；32. locking nut seal faces；231. upper groove；232. low groove；2311. straightway groove；2312.
Ball recess；2313. arc groove；2321. straightway groove；2322. hemispherical groove.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in further detail.
The structure of present pre-ferred embodiments is as shown in Figure 1.The locking clamp device of axial compression formula of the present embodiment includes
Bolt 1, mother nut 2, locking nut 3；Wherein, the inner ring of mother nut 2 is provided with female thread i24, this female thread i24 and bolt 1
External screw thread i11 match, mother nut 2 pass through thread bush on bolt 1；The outer ring of mother nut 2 is provided with external screw thread ii25,
The inner ring of locking nut 3 is provided with female thread ii31, and mother nut external screw thread ii25 is matched with locking nut female thread ii31, lock
Jack panel 3 passes through thread bush on mother nut 2.The present embodiment is also additionally arranged packing ring 4, located between mother nut 2 and bolt head.
Mother nut structure is as shown in Figure 2.Mother nut 2 is by front g. slice header 21, mid-section threads connecting portion 22 and rear variant part
23 compositions；The front g. slice header 21 of mother nut 2 is positive six sides of standard；The outer surface of mid-section threads connecting portion 22 is provided with outside mother nut
Screw thread ii25；Rear variant part 23 is provided with groove combination, and groove combination specifically includes a upper groove 231 and a low groove
232, this two groove is centrosymmetric and arranges and parallel to each other, and the fluting direction of two grooves is each perpendicular to the axial direction of bolt 1, fluting
Position is all at the Major Diam of mother nut female thread i24；Considered based on anti-loosing effect, the groove depth setting of upper groove and low groove
Add 1.5 to 2.5mm for mother nut rear variant part 23 internal bore radius；Low groove 232 is close on rear variant part 23
The boundary position of mid-section threads connecting portion 22.
The concrete structure of groove combination is referring to Fig. 3, Fig. 4.The two ends of upper groove 231 are ball recess 2312, ball recess
It is provided with two arc grooves 2313, between ball recess 2312 and 2313, two arc grooves 2313 of arc groove between 2312
Connected by straightway groove 2311 respectively, the arc apex of arc groove 2313 is directed away from the direction of low groove 232；Recessed
The two ends of groove 232 are hemispherical groove 2322, are connected by straightway groove 2321, hemispherical between two halves ball recess 2322
The projection of groove 2322 is towards the direction near upper groove 231.
The structure of locking nut 3 is as shown in Figure 5.The inner ring of locking nut 3 is provided with female thread ii31, this female thread ii31 with
The external screw thread ii25 of mother nut matches；The outside of this locking nut is standard six side；Locking nut 31 female thread ii is using change
Shape fine thread；The tail end end face of locking nut 3 is provided with seal face 32, and this seal face 32 perpendicular to bolt 1 axially, and is pressed
Jin Mian 32 center is provided with through hole, and the aperture of this through hole should be not less than the aperture of the through hole of mother nut 2.When locking nut 3 is sheathed on
When on mother nut 2, the seal face 32 of locking nut 3 is fitted with the rear variant part 23 of mother nut 2.
The deformation fine thread structure of locking nut 31 is as shown in Figure 6.Screw thread pair tooth form angular deformation screw thread (the moon in Fig. 6
Shadow part) tooth bottom be provided with the tapered ramp that angle is 30 degree so that when mutually tightening between locking nut 3 and mother nut 2, main
The cusp of nut external screw thread ii25 can tightly withstand on the tapered ramp of female thread ii31 of locking nut, thus producing one
Fixed coupling mechanism force, realizes mother nut 2 self-locking.
The specification of the locking clamp device of axial compression formula that above-described embodiment is recommended can be set by such as table 1 below
Put: (note: " l " is bolt length)
Table 1
According to the specification of table 1, it is shown in table 2 that corresponding installation process uses Tightening moment:
Table 2
The Tightening moment that table 2 is given is to consider artificially controlled strength, is also that convenient installation is reusable important simultaneously
Foundation.
In order to preferably implement the present embodiment, preferred pair technology does following requirement: the locking clamp device pair of axial compression formula
The moment values of unclamping that part produces after the nut fastening of clamping force effect should be greater than or are equal to its Tightening moment value；Axial compression formula
Locking clamp device is carried out after vibration test to clamp device, and the Tightening moment value that part is produced with the nut of clamping force effect should
More than or equal to Tightening moment value before its vibration test 95；Axial compression formula locking clamp device different preventing loose measure formula specifies
Test Tightening moment and lubrication under conditions of, clamp device is entered row amplitude be 0.1d, frequency be that 10hz, vibration number are
After the oscillation crosswise test of 1200 times, bolt remnants axle power be should be greater than or equal to 80 with the ratio of initial axle power.
The invention is not restricted to above-described embodiment, all are belonged to using the technical scheme that equivalent or equivalence replacement are formed
The scope of protection of present invention.
Claims (10)
1. the locking clamp device of a kind of axial compression formula, including bolt, mother nut, locking nut, described mother nut and bolt, lock
Jack panel and mother nut be threaded connection respectively it is characterised in that:
The outside of described locking nut is standard six side, and the inner ring of described locking nut is provided with female thread ii, described female thread ii
For deforming fine thread, the tail end end face of described locking nut is provided with seal face, and described seal face is perpendicular to described bolt axle
To described seal face center is provided with through hole；
Described mother nut is made up of front g. slice header, mid-section threads connecting portion and rear variant part, and described front g. slice header is standard six
Side；Described mid-section threads connecting portion is provided with mother nut external screw thread ii, described mother nut external screw thread ii and described locking nut inner ring
Female thread ii match；Described rear variant part is provided with groove combination, and described groove combination includes upper groove and low groove, institute
The fluting direction stating upper groove and low groove is each perpendicular to the axial direction of described bolt；Described upper groove includes straightway groove, ball
Connected in star and arc groove, described ball recess located at the groove two ends of entirely described upper groove, described arc groove located at
Between two ball recess, it is connected by described straightway groove between described ball recess and arc groove；Described low groove
Including straightway groove and hemispherical groove, described hemispherical groove located at the groove two ends of entirely described low groove, described two
Pass through described straightway groove between individual hemispherical groove to connect.
2. the locking clamp device of axial compression formula according to claim 1 it is characterised in that: the interior spiral shell of described locking nut
Stricture of vagina ii is screw thread pair tooth form angular deformation screw thread, and its tooth bottom is provided with tapered ramp.
3. the locking clamp device of axial compression formula according to claim 2 it is characterised in that: the angle of described tapered ramp
For 30 degree.
4. the locking clamp device of axial compression formula according to claims 1 to 3 any one it is characterised in that: on described
The straightway groove of groove, ball recess and arc groove in approximately the same plane, the straightway groove of described low groove
With hemispherical groove in approximately the same plane；When described upper groove arc groove be two when, this two arc grooves it
Between connected by the described straightway groove of described upper groove, two hemispherical groove of described low groove are separately positioned on described
The underface of two arc grooves of upper groove.
5. the locking clamp device of axial compression formula according to claims 1 to 3 any one it is characterised in that: described master
The upper groove of nut and low groove are centrosymmetric arrangement, and the groove depth of described upper groove and low groove is all higher than described mother nut
The radius of rear variant part endoporus.
6. the locking clamp device of axial compression formula according to claim 5 it is characterised in that: described upper groove and low groove
It is recessed at the Major Diam of female thread i of described mother nut.
7. the locking clamp device of axial compression formula according to claim 6 it is characterised in that: described low groove is located at described
At the root of close described mid-section threads connecting portion of rear variant part.
8. the locking clamp device of axial compression formula according to claim 7 it is characterised in that: the arc of described upper groove is recessed
The arc apex direction of groove is the direction away from described low groove, and the protrusion direction of the hemispherical groove of described low groove is close
The direction of described upper groove.
9. the locking clamp device of axial compression formula according to claim 8 it is characterised in that: described locking nut seal face
Through hole aperture be not less than described mother nut through hole aperture.
10. the locking clamp device of axial compression formula according to claim 8 it is characterised in that: described bolt and described lock
Jack panel is made up of ocr18ni9, a2-70 level 304 austenitic stainless steel body material, and described mother nut is by cr17ni 14mo2, a4-
80 grade of 316 austenitic stainless steel body material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049286.8A CN106351936B (en) | 2016-11-25 | 2016-11-25 | Axial compression formula anti-loose fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049286.8A CN106351936B (en) | 2016-11-25 | 2016-11-25 | Axial compression formula anti-loose fastening device |
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| Publication Number | Publication Date |
|---|---|
| CN106351936A true CN106351936A (en) | 2017-01-25 |
| CN106351936B CN106351936B (en) | 2019-10-08 |
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|---|---|---|---|
| CN201611049286.8A Active CN106351936B (en) | 2016-11-25 | 2016-11-25 | Axial compression formula anti-loose fastening device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139643A (en) * | 2018-11-09 | 2019-01-04 | 浙江天开实业有限公司 | A kind of tapered expansion pipe |
| CN110185691A (en) * | 2019-06-26 | 2019-08-30 | 朴得宝 | Prevent loose bolts nut assembly |
| CN110319103A (en) * | 2018-03-29 | 2019-10-11 | 罗章平 | Automatic anti-loosing screw nut and dedicated dismantling device |
| CN110439912A (en) * | 2019-07-15 | 2019-11-12 | 东风商用车有限公司 | A kind of locking flange face bolt |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB561453A (en) * | 1942-12-15 | 1944-05-19 | R K Dundas Ltd | Improvements in or relating to self-locking or "stiff" nuts |
| CN2718303Y (en) * | 2004-08-04 | 2005-08-17 | 王起征 | Full-thread locknut |
| CN201184352Y (en) * | 2008-04-16 | 2009-01-21 | 宁波永灵铁路配件有限公司 | Heterodont locking type anti-loose and anti-drop nut |
| CN202946514U (en) * | 2012-08-10 | 2013-05-22 | 青岛德才装饰安装工程有限公司 | Anti-loose self-locking nut and bolt |
| CN105465143A (en) * | 2016-01-17 | 2016-04-06 | 江苏金鼎钢结构有限公司 | Elastic pressure uniformizing type locking nut device |
| CN206290562U (en) * | 2016-11-25 | 2017-06-30 | 江苏金鼎钢结构有限公司 | The locking fastener of axial compression formula |
-
2016
- 2016-11-25 CN CN201611049286.8A patent/CN106351936B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB561453A (en) * | 1942-12-15 | 1944-05-19 | R K Dundas Ltd | Improvements in or relating to self-locking or "stiff" nuts |
| CN2718303Y (en) * | 2004-08-04 | 2005-08-17 | 王起征 | Full-thread locknut |
| CN201184352Y (en) * | 2008-04-16 | 2009-01-21 | 宁波永灵铁路配件有限公司 | Heterodont locking type anti-loose and anti-drop nut |
| CN202946514U (en) * | 2012-08-10 | 2013-05-22 | 青岛德才装饰安装工程有限公司 | Anti-loose self-locking nut and bolt |
| CN105465143A (en) * | 2016-01-17 | 2016-04-06 | 江苏金鼎钢结构有限公司 | Elastic pressure uniformizing type locking nut device |
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