CN1347790A - 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
- CN1347790A CN1347790A CN 01132268 CN01132268A CN1347790A CN 1347790 A CN1347790 A CN 1347790A CN 01132268 CN01132268 CN 01132268 CN 01132268 A CN01132268 A CN 01132268A CN 1347790 A CN1347790 A CN 1347790A
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- nut
- key
- endosome
- hexagonal annulus
- cylinder
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
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Abstract
The easy-to-disassemble bolting connection has specially designed screw nut, which has one cylindrical hexangular ring with one pair of key slots in the inner edge and one pair of diagonal disassembling positioning slots, one inner nut body with one corresponding pair of key slots in the outer edge to halve the inner nut body and two keys with central line passing through the center of the nut. During assembly, all the contact surfaces of the cylindrical hexangular ring, the inner nut body and the keys are painted with antirust oil, keys are pressed into the cylindrical hexangular ring, the inner nut body is pressed into the cylindrical hexangular ring through positioning of the keys, and after tapping, all the surfaces are painted with silica gel. The present invention ensures the easy disassembly of the bolting connection structurally and has excellent application scene.
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 technology:
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 connector 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 connector on the agricultural machinery of wind and weather, often contact the bolt and nut connectors such as dashboard, water pump and water tank of muddy water, the bolt and nut connector under hot environment etc.
After finishing the service life of part, also frequent rust because of bolt and nut connector structure extremely causes dismounting, reclaims difficulty in removal process, especially the unlike material of using bolt-nut to connect, 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 connector 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 organic 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, removal process, guarantee the convenient disassembly of bolt and nut connector, removal efficiency height and cost are low.
For realizing such purpose, in the technical scheme of the present invention, the nut structure of bolt and nut connector 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 integrality of nut when off working state.Transmit moment of torsion by two keys between cylinder hexagonal annulus and the nut endosome, guarantee that nut can produce the pretightning force that requires.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 datum level to being placed down on the mounting plate.
2. the contact surface at cylinder hexagonal annulus, nut endosome and key is coated with antirust 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-nut connects from structure, need not the operating personnel (as blowtorch, oxygen-acetylene torch cutting equipment operating personnel etc.) of specialty, need not to use solvent or chemical agent, thoroughly eliminated in the unloading process may injuring that operating personnel 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-nut connection, and good application prospects is arranged.
The description of drawings and the specific embodiment:
Fig. 1 is nut structure schematic diagram 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 connector 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 integrality of nut when off working state.Transmit moment of torsion by two keys 3 between cylinder hexagonal annulus 1 and the nut endosome 2, guarantee that nut can produce the pretightning force that requires.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 datum 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 antirust 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 pretightning force of requirement, the circumferential tension force that acts on the nut that pretightning 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 pretightning 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 shaft alignment.After cylinder hexagonal annulus is drawn out, knock several times along the axis 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 pretightning force of requirement at nut after, between nut endosome 2 two parts, 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 parts and the contact-making surface 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 connector structure of the present invention, be No. 15 steel for material, strength grade is 4.6 grades a nut, the pretightning 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 moment of torsion 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 connector of the present invention meets axle power-moment of torsion relation of stipulating in the national standard.
In bolt and nut connector stretching experiment loading procedure, it is good that nut-bolt connects duty, 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 shank of bolt), it is still good that nut-bolt connects duty 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 pretightning 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 datum 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 antirust 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 true CN1347790A (en) | 2002-05-08 |
| CN1142371C 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) |
Cited By (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
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1142371C (en) | 2004-03-17 |
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| C10 | Entry into substantive examination | ||
| 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 |