CN1142371C - Easy-to-disassemble bolt nut connecting piece and its assembling process - Google Patents
Easy-to-disassemble bolt nut connecting piece and its assembling process Download PDFInfo
- Publication number
- CN1142371C CN1142371C CNB011322683A CN01132268A CN1142371C CN 1142371 C CN1142371 C CN 1142371C CN B011322683 A CNB011322683 A CN B011322683A CN 01132268 A CN01132268 A CN 01132268A CN 1142371 C CN1142371 C CN 1142371C
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- nut
- key
- endosome
- hexagonal annulus
- cylinder
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- Expired - Fee Related
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The present invention relates to an easy disassembly connecting piece for a screw bolt and a nut. The nut has the special design that two corresponding key slots are arranged on the outer margin of an inner nut body and the inner margin of a hexagonal cylindrical surface circular ring; a center key line arranged in the key slots passes through the center of the nut; the inner nut body is divided into two symmetrical halves along the key line; a disassembly positioning slot is arranged on a diagonal position of the external end of the hexagonal cylindrical surface circular ring. During the assembly, antirust oil is coated on the contact surfaces of the hexagonal cylindrical surface circular ring, the inner nut body and keys; after pressed into the hexagonal cylindrical surface circular ring, the keys are used for positioning; the inner nut body is pressed into the hexagonal cylindrical surface circular ring; after the thread tapping, silica gel is coated on the contact surface of each component and an intersecting line of nut end faces for rust seizure prevention. The present invention structurally ensures the easy disassembly performance of the connecting piece of the screw bolt and the nut, has the advantages of convenient maintenance and convenient repair of components, solves the problem of difficult recycle of different materials for connecting the screw bolt and the nut, and has good application prospects.
Description
Technical field:
The present invention relates to a kind of easy-to-disassemble bolt nut connecting piece and assembly method thereof, belong to connection and fastening or Machine Components and Parts Design technical field in the mechanical engineering.
Background technique:
Characteristics such as that bolt-screw connector has is simple in structure, reliable operation, convenient disassembly, cost are low are used very extensive.But for the bolt and nut link that is under the abominable working environment, the situation that bolt (nut) is killed because of corrosion or corrosion and nut (bolt) often takes place, become not quick detachable even can't dismantle, make troubles to operation and maintenance.As frequent open work, suffer the bolt and nut link on the farm machinery of wind and weather, often contact the bolt and nut links such as mudguard wing, water pump and water tank of muddy water, the bolt and nut link under hot environment etc.
After finishing the working life of part, also frequent rust because of bolt and nut link structure extremely causes dismounting, reclaims difficulty in callback course, especially use the unlike material of bolt one nut connection, because can not carry out the material fusion simply reclaims, it is more outstanding that this problem just becomes, and causes the wasting of resources and environmental pollution thus.
For the bolt and nut link of killing because of corrosion or corrosion, domestic method for dismounting commonly used has mechanical disassembly method, solubilizer dissolving rusty scale disassembly method, adds chemical agent corrosion rusty scale disassembly method, adds thermal expansion disassembly method and destructive method for dismounting etc.More than all method for dismounting exist dismounting unreliable, dismounting cost height or shortcomings such as operational hazards, pollution surrounding environment, the reuse efficiency of product abandonment thing is low.
Summary of the invention:
The objective of the invention is at the deficiencies in the prior art, a kind of easy-to-disassemble bolt nut connecting piece and assembly method thereof of new structure are provided, in the use of part, maintenance, maintenance, callback course, guarantee the convenient disassembly of bolt and nut link, removal efficiency height and cost are low.
For realizing such purpose, in the technological scheme of the present invention, the nut structure of bolt and nut link has been done design cleverly, the standard hex nut is divided into cylinder hexagonal annulus, nut endosome and three parts of key, respectively at the inner edge of cylinder hexagonal annulus and two keyways of outer rim processing of nut endosome, the keyway center line point-blank, and the line of center line is by the nut center, the keyway of the two is corresponding.The nut endosome is divided into symmetrical two halves along keyway, is assembled together by the slight interference cooperation between cylinder hexagonal annulus, nut endosome and the key, guarantees the integrity of nut when off working state.By two key transmitting torques, guarantee that nut can produce the pretightening force that requires between cylinder hexagonal annulus and the nut endosome.In the place, a diagonal angle of cylinder hexagonal annulus outer end machined grooves, as the locating slot of dismounting cylinder annulus.
It is assembling base plane that the assembling of the quick detachable nut of the present invention does not have the end face of groove with cylinder hexagonal annulus, and concrete assembly method is as follows:
1. cylinder hexagonal annulus reference level to being placed down on the mounting plate.
2. the contact surface at cylinder hexagonal annulus, nut endosome and key is coated with rust preventive oil.
3. key is pressed into cylinder hexagonal annulus.
4. with the key location, the nut endosome is pressed into cylinder hexagonal annulus.
5. tapping.
6. smear silica gel at the contact surface and the nut end face intersection of cylinder hexagonal annulus, nut endosome, key,
Prevent dust, moisture content etc. from entering three's contact surface and cause corrosion, destroy bolt and nut and connect
The quick detachable property of part.
Easy-to-disassemble bolt nut connecting piece of the present invention, guaranteed the quick detachable property that bolt one nut connects from structure, need not the operator (as blowtorch, oxygen one acetylene torch cutting equipment operator etc.) of specialty, need not to use solvent or chemical agent, thoroughly eliminated in the unloading process may injuring that operator cause.The present invention makes things convenient for maintenance, maintenance and the recovery of part, and removal efficiency height and cost are low, and has solved the recovery problem of the unlike material of bolt one nut connection, and good application prospects is arranged.
Description of drawings and embodiment:
Fig. 1 is nut structure schematic representation among the present invention.
Fig. 2 is an A-A rotation back structural representation among Fig. 1.
As shown in the figure, nut in the bolt and nut link of the present invention is made up of cylinder hexagonal annulus 1, nut endosome 2 and 3 three parts of key, at the inner edge of cylinder hexagonal annulus 1 and the outer rim of nut endosome 2 two corresponding keyways are arranged, key 3 is contained in the keyway, and the center line of key 3 is by the nut center.Nut endosome 2 is divided into symmetrical two halves along key 3, is assembled together by the slight interference cooperation between cylinder hexagonal annulus 1, nut endosome 2 and the key 3, guarantees the integrity of nut when off working state.By two key 3 transmitting torques, guarantee that nut can produce the pretightening force that requires between cylinder hexagonal annulus 1 and the nut endosome 2.In the place, a diagonal angle of cylinder hexagonal annulus 1 outer end machined grooves, as the dismounting locating slot 4 of cylinder annulus.
When assembling, the reference level B that cylinder hexagonal annulus is not had a locating slot 4 is to being placed down on the mounting plate, is coated with rust preventive oil at the contact surface of cylinder hexagonal annulus 1, nut endosome 2 and key 3, key 3 is pressed into cylinder hexagonal annulus 1 after, with key 3 location, nut endosome 2 is pressed into cylinder hexagonal annulus 1.Contact surface and nut end face intersection at cylinder hexagonal annulus 1, nut endosome 2, key 3 behind the tapping are smeared silica gel, prevent corrosion.
During use, after nut is screwed to the pretightening force of requirement, the circumferential tension force that acts on the nut that pretightening force produces will affact on the cylinder hexagonal annulus 1 fully, and the intensity of nut is guaranteed by cylinder hexagonal annulus 1 fully.The moment of torsion that is screwed to the pretightening force needs of requirement transmits by key 3.After nuts and bolt is killed because of corrosion or corrosion, with the dismounting bearing draw dismounting locating slot 4 location of horse with cylinder hexagonal annulus, cylinder hexagonal annulus 1 is pulled out outside the bolt axis alignment.After cylinder hexagonal annulus is drawn out, knock several times along the axial direction that bolt-nut connects with hand hammer, the nut endosome is got loose, or tear the instrument of taking off open with the nut endosome of special use the nut endosome is got loose, reach the dismounting purpose.
Be screwed to the pretightening force of requirement at nut after, between nut endosome 2 two-part, reach the silica gel of annotating in the seam between nut endosome 2 and cylinder hexagonal annulus 1 and the key 3, with eliminate because of dust, moisture etc. by seam enter key 3 between nut endosome 2 two-part and the surface of contact between cylinder hexagonal annulus 1 and the nut endosome 2, cause between them contact surface to get rusty and kill, it is not quick detachable to cause quick detachable bolt-nut to connect, even not dismountable possibility.Structure of the present invention, assembly method and using method have guaranteed that the contact surface of cylinder hexagonal annulus 1, nut endosome 2 and key 3 is not by corrosion.
In functional reliability and convenient disassembly experiment to bolt and nut link structure of the present invention, be No. 15 steel for material, strength grade is 4.6 grades a nut, the pretightening force of requirement is 40.2KN (needing moment of torsion 160.8Nm).When being loaded into 420Nm in the experiment, key did not lose efficacy yet.The result shows the key reliable operation of transmitting torque between cylinder hexagonal annulus and nut endosome.Be No. 15 steel for material equally, strength grade is 4.6 grades a nut, and when moment of torsion was loaded into 160.8Nm, the mean value of axle power was 42.8KN (greater than 40.2KN).Show that bolt and nut link of the present invention meets axle power-moment of torsion relation of stipulating in the NBS.
In bolt and nut link stretching experiment loading procedure, it is good that nut-bolt connects working state, the situation that screw thread is cut up and quick detachable nut combinations body lost efficacy does not appear from start to finish, when (constriction appears in bolt shank), it is still good that nut-bolt connects working state up to the flow limit that is loaded into bolt material.After the unloading, nut is still free to rotate.Experiment shows the nut structure reliable operation.
Easy-to-disassemble bolt nut connecting piece convenient disassembly of the present invention, the mean value of the pullout forces of cylinder hexagonal annulus are (under the pretightening force state of regulation) 577N.
Claims (2)
1, a kind of easy-to-disassemble bolt nut connecting piece, it is characterized in that nut is made up of cylinder hexagonal annulus (1), nut endosome (2) and key (3), at the inner edge of cylinder hexagonal annulus (1) and the outer rim of nut endosome (2) two corresponding keyways are arranged, key (3) center line that is contained in the keyway passes through the nut center, nut endosome (2) is divided into the two halves of symmetry along key (3), be assembled together by the slight interference cooperation between cylinder hexagonal annulus (1), nut endosome (2) and the key (3), dismounting locating slot (4) arranged at the place, a diagonal angle of cylinder hexagonal annulus (1) outer end.
2, a kind of assembly method of easy-to-disassemble bolt nut connecting piece, it is characterized in that cylinder hexagonal annulus reference level B to being placed down on the mounting plate, contact surface at cylinder hexagonal annulus (1), nut endosome (2) and key (3) is coated with rust preventive oil, after key (3) is pressed into cylinder hexagonal annulus (1), locate with key (3), nut endosome (2) is pressed into cylinder hexagonal annulus (1), smears silica gel at the contact surface and the nut end face intersection of cylinder hexagonal annulus (1), nut endosome (2), key (3) behind the tapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011322683A CN1142371C (en) | 2001-11-22 | 2001-11-22 | Easy-to-disassemble bolt nut connecting piece and its assembling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011322683A CN1142371C (en) | 2001-11-22 | 2001-11-22 | Easy-to-disassemble bolt nut connecting piece and its assembling process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1347790A CN1347790A (en) | 2002-05-08 |
| CN1142371C true CN1142371C (en) | 2004-03-17 |
Family
ID=4671305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011322683A Expired - Fee Related CN1142371C (en) | 2001-11-22 | 2001-11-22 | Easy-to-disassemble bolt nut connecting piece and its assembling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1142371C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033467A (en) * | 2014-06-19 | 2014-09-10 | 张德强 | Connecting piece assembled or disassembled quickly |
| CN104728244A (en) * | 2015-03-20 | 2015-06-24 | 河海大学常州校区 | Combined nut |
| CN108916191A (en) * | 2018-07-10 | 2018-11-30 | 平湖巨龙紧固件有限公司 | A kind of nut |
-
2001
- 2001-11-22 CN CNB011322683A patent/CN1142371C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1347790A (en) | 2002-05-08 |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |