CN109185322A - A kind of pairs of anti-loose nut bolt group and its operating method with elastic bumps nut and rotary table hex nut composition - Google Patents
A kind of pairs of anti-loose nut bolt group and its operating method with elastic bumps nut and rotary table hex nut composition Download PDFInfo
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- CN109185322A CN109185322A CN201811381840.1A CN201811381840A CN109185322A CN 109185322 A CN109185322 A CN 109185322A CN 201811381840 A CN201811381840 A CN 201811381840A CN 109185322 A CN109185322 A CN 109185322A
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- nut
- rotary table
- elastic bumps
- frictional force
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- 239000000203 mixture Substances 0.000 title claims abstract description 10
- 238000011017 operating method Methods 0.000 title claims abstract description 6
- 230000033228 biological regulation Effects 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- 230000003993 interaction Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 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
- F16B39/284—Locking by means of elastic deformation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
A kind of pairs of anti-loose nut bolt group and its operating method with elastic bumps nut and rotary table hex nut composition, it is interacted using the upstanding elastomeric protrusion of raised nut and the frustum cone side of rotary table hex nut, when screw thread pair pre-tightens, other than axial pre tightening force, it increases a radial forces more, forms pressure and frictional force bigger between screw thread pair.Simultaneously also as elastic bumps and wedge shaped side interact, an additional rubbing action point is increased again, increase additional pressure and frictional force, improve total frictional force limiting value, total frictional force limiting value is much larger than frictional force limiting value caused by common pretension bolt, its anti-loosing effect is more preferable, can prevent screw thread pair from relatively rotating.Reliability, practicability are good, can be used in severe impact, vibration, alternating load or the big occasion of temperature change, effectively reduce maintenance, maintenance to thread connection, improve safety, the utilization rate of equipment utilization.
Description
Technical field
The invention belongs to mechanical engineering threaded connection locking field, being related to one kind, to can make full use of friction locking, prevents
Thread connection loosens, and improves connection effect, reduces a kind of band elastic bumps nut and rotary table six of the maintenance of thread connection, maintenance
The pairs of anti-loose nut bolt group and its operating method of angle nut composition.
Background technique
Various machines and component be unable to do without connector in being linked and packed.The quantity of connector accounts about machine components sum
The 60% of amount, wherein thread connection is in mechanical attachment using the most common form, has that structure is simple, connection is reliable, assembly and disassembly side
Just the advantages that, brings conveniently to mechanical industry.But it has an inevitable weakness, in severe impact, vibration or change
Under load effect, or when temperature change is big, thread connection is possible to loosen or even completely disengaged.In real life because
Thread connection loosens the product failure generated, machine failure, disintegration, or even causes the example of fatal crass commonplace.Therefore
The reliability for how guaranteeing thread connection, prevents thread connection from loosening, and is that product quality is effectively ensured, improves product reliability
Importance, locking thread problem have become the actual techniques problem of urgent need to resolve.
To solve the problems, such as loosening for connector, since thread connector be born, in the world the scientist of many countries with
Engineer has made a large amount of test and research.
There are many locking method, and by the difference of working principle, anti-loose method is divided into friction is locking, machinery is locking etc..Furthermore
There are also some special anti-loose methods, for example, between screw thread rivet welding, punching point is locking, coating adhesive is locking etc. screw thread pair.
Rubbing locking is a kind of most widely used locking mode, and this mode generates one between screw thread pair and do not become with external force
The normal pressure of change, to generate the frictional force that screw thread pair can be prevented to relatively rotate.This normal pressure can be by axial or simultaneously two
It is realized to collet threaded pair.Such as use elastic washer, double nut, self-locking nut and nylon anti-loose nut.It is this anti-
Loose measure formula is more convenient for the disassembly of nut, but the shock and vibration and varying load the case where, and bolt can be led because of relaxation at the beginning
Pretightning force decline is caused, with the increase of vibration number, pretightning force is gradually reduced, and nut will eventually be caused to loosen, thread connection
Failure.
The second way is mechanical locking.It is the relative rotation that appliance directly limits screw thread pair.Such as using split pin, series winding
Steel wire and washer etc..This mode causes disassembly inconvenient.
Summary of the invention
The locking root problem of bolt-connection is to prevent the relative rotation of screw thread pair.Rubbing locking will prevent screw thread pair
It relatively rotates, just must try to increase the pressure and frictional force between screw thread pair, or increase rubbing action point simultaneously, increase additional
Frictional force, improve total frictional force limiting value, can just prevent screw thread pair from relatively rotating.
After material is certain, coefficient of friction can not just change again, only raising screw thread pair between interaction force or
Increase rubbing action point quantity.
After threaded pre-tightening, usually only by the effect of single axial pre tightening force, pretightning force is usually material yield strength σ s
50~70%, it is maximum no more than 80%, limit by improving pretightning force and improve the frictional force between screw thread pair.If we
As soon as external force laterally can added, the resultant force of the lateral external forces and axial pre tightening force is much larger than single axial pre tightening force,
Pressure and frictional force between the screw thread pair of formation is also just bigger, so that it may prevent screw thread pair from relatively rotating.
The present invention is exactly to make threaded pre-tightening using a kind of double nut with elastic bumps nut and rotary table hex nut composition
When, it is not only acted on, while the effect also by a lateral external forces, is formed bigger between screw thread pair by normal axial pre tightening force
Pressure and frictional force.An additional rubbing action point is also added simultaneously, increases additional frictional force, improves total friction
Power limiting value, prevents screw thread pair from relatively rotating.
The technical solution adopted by the present invention to solve the technical problems:
A kind of pairs of anti-loose nut bolt group with elastic bumps nut and rotary table hex nut composition, it is characterized in that: including band bullet
Property protrusion nut, rotary table hex nut, bolt；The elastic bumps with elastic bumps nut in arc-shaped, semi-cylindrical or
Person is cylindric, is made of elastic material, uprightly, vertical with nut end face on an end face of nut；The rotary table hexagonal
Nut is made of round estrade and two part of regular hexagon cylinder, and the outsole of rotary table connects regular hexagon cylinder, and the handle of rotary table is
One end face of nut, the side of rotary table dissipates inclination outward；Frustum cone height is greater than elastic bumps height, elastic bumps position position
In in the axis projection region of frustum cone side.
A kind of operating method of the pairs of anti-loose nut bolt group with elastic bumps nut and rotary table hex nut composition, it is special
Sign is: in use, rotary table hex nut is screwed in screw rod, making hexagon end face and work mounting s face contact, rotary table end face is directed toward
The nut screw terminal of shank of bolt pre-tightens work connection；Again by the rotary table of the elastic bumps of raised nut and rotary table hex nut
End is opposite to be screwed in, and until raised nut screws rotary table hex nut, stops screwing until reaching regulation maximum pretightning force.
The invention has the advantages that utilizing the upstanding elastomeric protrusion of raised nut and the frustum cone side of rotary table hex nut
Interaction other than axial pre tightening force, increases a radial forces more, is formed between screw thread pair when screw thread pair is pre-tightened
Bigger pressure and frictional force.Simultaneously also as elastic bumps and wedge shaped side interact, and increases one and additional rub
Position is wiped, additional pressure and frictional force are increased, improves total frictional force limiting value, total frictional force limiting value is much larger than general
Frictional force limiting value caused by logical pretension bolt, anti-loosing effect is more preferable, can prevent screw thread pair from relatively rotating.Reliability,
Practicability is good, can be used in severe impact, vibration, alternating load or the big occasion of temperature change, effectively reduce to thread connection
Maintenance, maintenance, improve safety, the utilization rate of equipment utilization.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is connection assembly axial cross-sectional views of the invention.
Fig. 2 is rotary table hex nut axial section.
Fig. 3 is rotary table hex nut rotary table end elevation view.
Fig. 4 is elastic bumps nut axial section.
Fig. 5 is elastic bumps nut protrusion end elevation view.
Fig. 6 be frustum cone side be corrugated when rotary table end elevation view.
In figure: 1. rotary table hex nut, 2. rotary table 3. is with elastic bumps nut
4. raised 6. washers of 5. upstanding elastomeric of bolt
7. the coupled 2. 9. ripple cambered surface of workpiece of coupled workpiece 1 8.
Specific embodiment
In Fig. 1 embodiment, a kind of pairs of anti-loose nut of band elastic bumps nut (3) and rotary table hex nut (1) composition
Bolt group, including rotary table hex nut (1), band elastic bumps nut (3), bolt (4).The band elastic bumps nut (3)
Upstanding elastomeric protrusion (5) is arc-shaped, is made of elastic material, is located on an end face of raised nut (3), uprightly, and convex
It is vertical to play nut (3) end face.The rotary table hex nut (1) is partly made of round estrade (2) and regular hexagon cylinder two, circle
The outsole of platform (2) connects regular hexagon cylinder, and the handle of rotary table (2) is an end face of nut, and the side of rotary table (2) is to outgoing
Dissipate inclination；Rotary table (2) is highly greater than elastic bumps (5) height, and elastic bumps (5) position is located at the axis projection area of frustum cone side
In domain.
In use, rotary table hex nut (1) is screwed in screw rod (4), contact hexagon end face with work mounting s face (7),
The nut screw terminal of shank of bolt (4) is directed toward in rotary table end face, and workpiece (7,8) are coupled and are pre-tightened；It is again that the elasticity of raised nut (3) is convex
Rise (5) it is opposite with the rotary table end of rotary table hex nut (1), screw-in screw rod (4).Raised nut (3) constantly rotates, elastic bumps
(5) it gradually moves down, gradually contacts and interact with frustum cone side.Because the side of rotary table dissipates inclination, expansion circle outward
Platform compresses upstanding elastomeric raised (5) generates flexible deformation and is inclined outwardly, and rotary table hexagonal is given in upstanding elastomeric protrusion (5) reaction
(1) cross force of nut.Raised nut (3) is more toward backspin, and the flexible deformation of upstanding elastomeric protrusion (5) is bigger, upstanding elastomeric
Raised (5) and the interaction force of rotary table hex nut (1) are also bigger.When raised nut (3) revolves rotary table hex nut (1)
Tightly, when reaching regulation maximum pretightning force, it is maximum not only act upon the contact surfaces of two nuts, the axial force on screw thread pair, and
The mutually transverse active force of two nuts is also maximum.Horizontal force suffered by raised nut (3) refers to the off-axis heart, rotary table hex nut
(1) horizontal force suffered by is directed toward axle center.
Other than the axial pre tightening force suffered by the common pairs of anti-loose nut of screw thread pair at this time, and a more radial effect
Power forms bigger pressure and frictional force between screw thread pair.Simultaneously also as elasticity interacts with wedge shaped side, and increase one
A additional rubbing action point, increases additional frictional force, improves total frictional force limiting value, total frictional force limiting value is long-range
The frictional force limiting value caused by common double nut, anti-loosing effect are also just more preferable, so that it may prevent screw thread pair from relatively rotating.
The side of rotary table hex nut (1) can be made a series of corrugated shape being made of continuous cambered surfaces, advantageous protrusion
Nut (3), which screws rear upstanding elastomeric protrusion (5) are chimeric with ripple cambered surface (9), to be engaged.It is chimeric to be engaged effect and adjacent circular arc concave surface
Raised edge rib have very strong mechanical inhibition to the sliding of upstanding elastomeric raised (5), more locked screw thread pair, avoided spiral shell
Line pair relatively rotates.
Claims (2)
1. a kind of pairs of anti-loose nut bolt group with elastic bumps nut and rotary table hex nut composition, it is characterized in that: including band
Elastic bumps nut, rotary table hex nut, bolt；The elastic bumps with elastic bumps nut are in arc-shaped, semi-cylindrical
Or it is cylindric, it is made of elastic material, it is uprightly, vertical with nut end face on an end face of nut；The rotary table six
Angle nut is made of round estrade and two part of regular hexagon cylinder, and the outsole of rotary table connects regular hexagon cylinder, the handle of rotary table
For an end face of nut, the side of rotary table dissipates inclination outward；Frustum cone height is greater than elastic bumps height, elastic bumps position
In the axis projection region of frustum cone side.
2. a kind of operating method of the pairs of anti-loose nut bolt group with elastic bumps nut and rotary table hex nut composition, feature
It is: in use, rotary table hex nut is screwed in screw rod, makes hexagon end face and work mounting s face contact, spiral shell is directed toward in rotary table end face
The nut screw terminal of tightening latch pre-tightens work connection；Again by the rotary table end of the elastic bumps of raised nut and rotary table hex nut
It is opposite to screw in, until raised nut screws rotary table hex nut, stop screwing until reaching regulation maximum pretightning force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381840.1A CN109185322A (en) | 2018-11-20 | 2018-11-20 | A kind of pairs of anti-loose nut bolt group and its operating method with elastic bumps nut and rotary table hex nut composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381840.1A CN109185322A (en) | 2018-11-20 | 2018-11-20 | A kind of pairs of anti-loose nut bolt group and its operating method with elastic bumps nut and rotary table hex nut composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109185322A true CN109185322A (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811381840.1A Pending CN109185322A (en) | 2018-11-20 | 2018-11-20 | A kind of pairs of anti-loose nut bolt group and its operating method with elastic bumps nut and rotary table hex nut composition |
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| CN (1) | CN109185322A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931322A (en) * | 2019-04-18 | 2019-06-25 | 盈锋志诚嘉精密五金（深圳）有限公司 | Combined-type locking nut structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201813237U (en) * | 2010-09-30 | 2011-04-27 | 刘文富 | Anti-loosing connecting structure for vibrating motor |
| CN104454909A (en) * | 2014-11-12 | 2015-03-25 | 常州市新西华亚工具有限公司 | Vibratory motor base connecting device |
| CN108757700A (en) * | 2018-08-03 | 2018-11-06 | 王平安 | Deformation type anti-loosen screw nut component |
| CN209278317U (en) * | 2018-11-20 | 2019-08-20 | 韦志锋 | A kind of pairs of anti-loose nut bolt group with elastic bumps nut and rotary table hex nut composition |
-
2018
- 2018-11-20 CN CN201811381840.1A patent/CN109185322A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201813237U (en) * | 2010-09-30 | 2011-04-27 | 刘文富 | Anti-loosing connecting structure for vibrating motor |
| CN104454909A (en) * | 2014-11-12 | 2015-03-25 | 常州市新西华亚工具有限公司 | Vibratory motor base connecting device |
| CN108757700A (en) * | 2018-08-03 | 2018-11-06 | 王平安 | Deformation type anti-loosen screw nut component |
| CN209278317U (en) * | 2018-11-20 | 2019-08-20 | 韦志锋 | A kind of pairs of anti-loose nut bolt group with elastic bumps nut and rotary table hex nut composition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931322A (en) * | 2019-04-18 | 2019-06-25 | 盈锋志诚嘉精密五金（深圳）有限公司 | Combined-type locking nut structure |
| CN109931322B (en) * | 2019-04-18 | 2024-04-05 | 盈锋志诚嘉精密五金（深圳）有限公司 | Combined lock nut structure |
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| PB01 | Publication | ||
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Application publication date: 20190111 |
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