CN103527601B - A kind of attachment structure and securing member thereof - Google Patents
A kind of attachment structure and securing member thereof Download PDFInfo
- Publication number
- CN103527601B CN103527601B CN201310525180.0A CN201310525180A CN103527601B CN 103527601 B CN103527601 B CN 103527601B CN 201310525180 A CN201310525180 A CN 201310525180A CN 103527601 B CN103527601 B CN 103527601B
- Authority
- CN
- China
- Prior art keywords
- marmem
- hole
- securing member
- shape
- stopper slot
- 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.)
- Active
Links
Landscapes
- Insertion Pins And Rivets (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a kind of attachment structure and securing member thereof, this securing member includes body and marmem；Described body has the through hole accommodating described marmem, and the sidewall of described through hole is provided with stopper slot；Described marmem, when austenitic state, forms the first shape of coordinating with described through hole and described stopper slot, and with described stopper slot interference fit；And, described marmem, when martensitic state, forms the second shape coordinated with described through hole；Also include limiting described marmem and the described through hole location division relative to position.The character of memory organization packets shape function is realized, it is possible to utilize this characteristic of marmem to prevent the decay of fastener shaft power owing to marmem has to change based on martensitic-austenitic.
Description
Technical field
The present invention relates to connector technical field, particularly relate to a kind of securing member；The present invention is also
Relate to a kind of attachment structure including above-mentioned securing member.
Background technology
At present, waste pipe is connected by fastening bolt with cylinder head, owing to this is tight
Fixing bolt, near the exhaust end of electromotor, is in high-temperature work environment, for a long time in hot environment work
Make, easily cause fastening bolt generation creep, be deformed, thus fastening bolt elongation causes
Stress relaxation, causes fastening bolt to loosen, even ruptures, affect the reliability of electromotor.
In addition to the fastening bolt of above-mentioned connection exhaustor and cylinder cap, other are in hot operation ring
The securing member of border or harsh environments there is also similar problem.
Therefore, how to improve securing member, reduce the creep tendency of securing member, it is to avoid securing member pine
Dynamic, prevent the axle power of securing member from decaying, be those skilled in the art's technology that solution is presently required
Problem.
Summary of the invention
It is an object of the invention to provide a kind of attachment structure and securing member thereof, this securing member can drop
Low creep is inclined to, it is to avoid loosens, prevents the axle power of securing member from decaying.
For solving above-mentioned technical problem, the present invention provides a kind of securing member, including body and shape
Memorial alloy；
Described body has the through hole accommodating described marmem, on the sidewall of described through hole
It is provided with stopper slot, and described stopper slot is positioned at the hypomere of described body；
Described marmem, when austenitic state, is formed and described through hole and described spacing
First shape of slot fit, and with described stopper slot interference fit；
And, described marmem is when martensitic state, and formation coordinates with described through hole
Second shape；
Also include limiting described marmem and the described through hole location division relative to position.
Memory organization packets are realized owing to marmem has to change based on martensitic-austenitic
The character of shape function, it is possible to utilize this characteristic of marmem to prevent fastening
The axle power decay of part.After constituted above design, during assembling, at the marmem of securing member
Only coordinating with the through hole of body in the second shape, i.e. marmem, after assembling, heating makes
Marmem is austenitic state by martensitic state, and marmem i.e. recovers
To the first shape, not only coordinate with the through hole of body, also coordinate with the stopper slot of through-hole side wall,
The shape of marmem is in recovery process, and it is caused constraint by arranging of stopper slot, makes
Its shape cannot return to free state, thus the body of securing member is produced pressure radially and
Axial pulling force, wherein, radial pressure can strengthen the laminating of securing member and the connecting hole of connector
Pressure, improves frictional force, prevents securing member from loosening；Axial tension can be to the axle of fastener body
Carry out spacing to length, it is to avoid the axial elongation that securing member produces because of creep, reduce stress pine
The tendentiousness relaxed, prevents the axle power of securing member from decaying.
Preferably, described stopper slot is endless groove.
Preferably, along axial arranged multiple described endless grooves of described through hole.
Preferably, described stopper slot is fan-shaped groove.
Preferably, the circumference along described through hole is evenly arranged multiple described fan-shaped groove.
Preferably, the upper end of described through hole forms the supine ring-shaped step of step, described shape
The upper end of memorial alloy has the radially protruding portion coordinated with described ring-shaped step.
The present invention also provides for a kind of attachment structure, including the first connector, the second connector and
Connecting described first connector and the securing member of described second connector, described securing member is above-mentioned
Securing member described in any one；During assembling, described marmem is in the second shape；Dress
After joining, described marmem is made to be in the first shape by heating.
Owing to above-mentioned securing member has above-mentioned technique effect, so including the connection knot of this securing member
Structure also has corresponding technique effect.
Accompanying drawing explanation
Fig. 1 is the generalized section of attachment structure provided by the present invention；
Fig. 2 is the structural representation of the front securing member of attachment structure provided by the present invention assembling；
Fig. 3 is the structural representation of securing member after attachment structure provided by the present invention is assembled；
Fig. 4 is the structural representation of fastener body in Fig. 1；
Fig. 5 is the structural representation of marmem in Fig. 2；
Fig. 6 is the structural representation of marmem in Fig. 3.
In Fig. 1-6:
Securing member 10, body 11, through hole 11a, stopper slot 11b, ring-shaped step 11c, shape
Shape memory alloys 12, the first shape 121, protuberance 121b, the second shape 122, radially protruding
Portion 12c；
First connector 20；Second connector 30.
Detailed description of the invention
The core of the present invention is to provide a kind of attachment structure and securing member thereof, and this securing member can drop
Low creep is inclined to, it is to avoid loosens, prevents the axle power of securing member from decaying.
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawings
The present invention is described in further detail with detailed description of the invention.For ease of understanding and describing letter
Clean, illustrate below in conjunction with attachment structure and securing member thereof, beneficial effect is not repeated to discuss.
Refer to Fig. 1-6, Fig. 1 is the generalized section of attachment structure provided by the present invention；Fig. 2
For the structural representation of securing member before attachment structure provided by the present invention assembling；Fig. 3 is the present invention
The structural representation of securing member after the assembling of provided attachment structure；Fig. 4 is securing member basis in Fig. 1
The structural representation of body；Fig. 5 is the structural representation of marmem in Fig. 2；Fig. 6 is
The structural representation of marmem in Fig. 3.
In this embodiment, attachment structure include first connector the 20, second connector 30 with
And connect the first connector 20 and securing member 10 of the second connector 30.
Wherein, securing member 10 includes body 11 and marmem 12；Securing member 10 in figure
With fastening bolt for exemplifying.Body 11 has the through hole 11a accommodating marmem 12,
The sidewall of through hole 11a is provided with stopper slot 11b, and stopper slot 11b is positioned at the hypomere of body 11；
It should be noted that the hypomere of body 11 refers to that body 11 is spirally connected with the second connector 30 here
Part.
Marmem 12, when austenitic state, is formed and through hole 11a and stopper slot 11b
Coordinate the first shape 121, and with stopper slot 11b interference fit；
And, marmem 12, when martensitic state, forms the coordinated with through hole 11a
Two shapes 122；
Also include the location division of limit shape memorial alloy 12 position relative with through hole 11.
Memory structure is realized owing to marmem 12 has to change based on martensitic-austenitic
The character of part shape function, it is possible to utilize this characteristic of marmem 12 to prevent
The axle power decay of securing member 10.
After constituted above design, attachment structure is when assembling, and the shape memory of securing member 10 closes
Gold 12 is in the second shape 122(and refers to Fig. 5), i.e. marmem 12 only with body
The through hole 11a of 11 coordinates, as shown in Figure 2；Now, securing member 10 is through the first connection
The connecting hole of part the 20, second connector 30, by the first connector 20 and the second connector 30
Connect.
After assembling, it is austenite shape by martensitic state that heating makes marmem 12
State, marmem 12 i.e. returns to the first shape 121(and refers to Fig. 6), not only with this
The through hole 11a of body 11 coordinates, and also the stopper slot 11b with through hole 11a sidewall coordinates, such as Fig. 3
Shown in, the first shape 121 has and the protuberance 121b of stopper slot 11b interference fit；Shape
The shape of memorial alloy 12 is in recovery process, and it is caused constraint by arranging of stopper slot 11b,
Make its shape cannot return to free state, thus the body 11 of securing member 10 is produced radially
Pressure and axial tension, wherein, radial pressure can strengthen securing member 10 and connector (i.e. first
Connector 20 and the second connector 30) the laminate pressure of connecting hole, improve frictional force, anti-
Only securing member 10 loosens；The axial length of body 11 can be carried out spacing by axial tension, it is to avoid
The axial elongation that securing member 10 produces because of creep, reduces the tendentiousness of stress relaxation, prevents tight
The axle power decay of firmware 10.
It is pointed out that for securing member 10 itself, its body 11 and shape memory
When alloy 12 assembles, it is clear that marmem 12 is in martensitic state, i.e. have
Two shapes 122.
Further, the stopper slot 11b of through hole 11a sidewall is endless groove, correspondingly, shape
When memorial alloy 12 is in the first shape 121, described protuberance 121b is and described endless groove mistake
Be full of coordinate annular boss.
It is so designed that, after securing member 10 and the assembling of first connector the 20, second connector 30,
In heating process, i.e. marmem 12 is returned to the first shape 121 by the second shape 122
During, the radial pressure and the axial tension that produce body 11 are evenly distributed, can be further
The axle power preventing securing member 10 decays.
Further, along axial arranged multiple endless grooves of through hole 11a.Concrete of endless groove
Spacing between several and each endless groove can determine according to actually required.Obviously, shape memory
When alloy 12 is in the first shape 121, there are multiple rings corresponding with endless groove number and position
Shape boss.
It is so designed that, further enhancing marmem 12 extensive by the second shape 122
Multiple during the first shape 121, the radial pressure that body 11 is produced and axial tension,
Thus create a further reduction the creep tendency of securing member 10, the axle power of securing member 10 can be prevented
Decay.
Certainly, in addition to stopper slot 11b is set to endless groove, it is also possible to be set to it
The groove of his structure, as long as making marmem 12 returned to by the second shape 122
During one shape 121, it is possible to body 11 is produced radial pressure and axial tension.As, can
So that stopper slot 11b is set to fan-shaped groove, in order to make radial pressure that body 11 is subject to and axially draw
Power is evenly distributed, and can be evenly arranged multiple fan-shaped groove along the circumference of through hole 11a.
In the various embodiments described above, described location division can be set to following structure: through hole 11a's is upper
End forms step supine ring-shaped step 11c, and the upper end of marmem 12 has and ring
The radially protruding portion 12c that shape step 11c coordinates.
It is pointed out that on the noun of locality here be with during in Fig. 1-6, parts are positioned at figure with
And position that parts are each other defines, be intended merely to state the clear of technical scheme and
Convenient, the use of the described noun of locality should not limit the scope that the application is claimed.
The body 11 of securing member 10 and the marmem 12 with the second shape 122 assemble
Time, marmem 12 plug-in mounting is entered in the through hole 11a of body 11, until shape memory
The radially protruding portion 12c of alloy 12 upper end is placed on ring-shaped step 11c.
Certainly, when actual setting, described location division may be alternatively provided as other structures, not office
It is limited to said structure, as long as the relative position of body 11 and marmem 12 can be limited
?.
Described securing member 10 may be applied in the connection knot of hot environment or harsh environments
Structure.Without loss of generality, illustrate as a example by the connection of waste pipe and cylinder cap, exhaustor
It is the first connector and the second connector with cylinder cap.
During assembling, the securing member 10 being in the second shape 122 with marmem 12 will row
Trachea and cylinder cap connect；
After assembling, heat securing member 10 so that it is marmem 12 returns to austenite shape
The first shape 121 under state, the stopper slot 11b of the body 11 protuberance 121b to the first shape 121
Restricted, thus, body 11, in shape recovery process, is applied by marmem 12
Radial pressure and axial tension, improve the frictional force between body 11 and exhaustor, cylinder cap, fall
Low body 11 creep tendency, and then improve securing member 10 clamp force square, so, it is to avoid
The phenomenons such as even fracture are loosened because exhaustor is served in the securing member 10 that hot environment causes.
It is pointed out that here, owing to exhaustor is served in hot environment, so securing member
After 10 connect exhaustor and cylinder cap, it is possible to the most individually it is heated.When the engine operates, by
Working environment in exhaustor is hot environment, will necessarily heat securing member 10, thus fasten
The marmem 12 of part 10 also can return to the first shape 121 from the second shape 122,
Reach effect similar to the above.Obviously, in such cases, the high temperature ring that connector is on active service
Border can make marmem 12 be austenitic state by martensitic state.
Above attachment structure provided by the present invention and securing member thereof are all described in detail.
Principle and the embodiment of the present invention are set forth by specific case used herein, above
The explanation of embodiment is only intended to help to understand method and the core concept thereof of the present invention.Should refer to
Go out, for those skilled in the art, before without departing from the principle of the invention
Putting, it is also possible to the present invention is carried out some improvement and modification, these improve and modification also falls into
In the protection domain of the claims in the present invention.
Claims (6)
1. a securing member, it is characterised in that include body and marmem；
Described body has the through hole accommodating described marmem, on the sidewall of described through hole
It is provided with stopper slot, and described stopper slot is positioned at the hypomere of described body；
Described marmem, when austenitic state, is formed and described through hole and described spacing
First shape of slot fit, and with described stopper slot interference fit；
And, described marmem is when martensitic state, and formation coordinates with described through hole
Second shape；
Also include limiting described marmem and the described through hole location division relative to position；Institute
Stating stopper slot is endless groove.
2. securing member as claimed in claim 1, it is characterised in that along the axle of described through hole
To arranging multiple described endless grooves.
3. a securing member, it is characterised in that include body and marmem；
Described body has the through hole accommodating described marmem, on the sidewall of described through hole
It is provided with stopper slot, and described stopper slot is positioned at the hypomere of described body；
Described marmem, when austenitic state, is formed and described through hole and described spacing
First shape of slot fit, and with described stopper slot interference fit；
And, described marmem is when martensitic state, and formation coordinates with described through hole
Second shape；
Also include limiting described marmem and the described through hole location division relative to position；Institute
Stating stopper slot is fan-shaped groove.
4. securing member as claimed in claim 3, it is characterised in that along the week of described through hole
To being evenly arranged multiple described fan-shaped groove.
5. the securing member as described in any one of Claims 1-4, it is characterised in that described
The upper end of through hole forms the supine ring-shaped step of step, the upper end tool of described marmem
There is the radially protruding portion coordinated with described ring-shaped step.
6. an attachment structure, described including the first connector, the second connector and connection
First connector and the securing member of described second connector, it is characterised in that described securing member is
Securing member described in any one of claim 1 to 5；
During assembling, described marmem is in the second shape；After assembling, made by heating
Described marmem is in the first shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525180.0A CN103527601B (en) | 2013-10-29 | 2013-10-29 | A kind of attachment structure and securing member thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525180.0A CN103527601B (en) | 2013-10-29 | 2013-10-29 | A kind of attachment structure and securing member thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103527601A CN103527601A (en) | 2014-01-22 |
| CN103527601B true CN103527601B (en) | 2016-08-17 |
Family
ID=49929858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310525180.0A Active CN103527601B (en) | 2013-10-29 | 2013-10-29 | A kind of attachment structure and securing member thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103527601B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967911A (en) * | 2013-01-29 | 2014-08-06 | 江苏华彤新能源科技有限公司 | Mounting bolt special for leaking cable |
| CN104033466B (en) * | 2014-05-27 | 2016-11-16 | 潍柴动力股份有限公司 | A kind of screwed assembly |
| CN108240191B (en) * | 2016-12-27 | 2021-01-29 | 中国石油天然气股份有限公司 | Lost circulation patching system and patching method |
| CN108149065B (en) * | 2017-12-22 | 2019-08-23 | 烟台浩忆生物科技有限公司 | A kind of Ti base marmem rivet fastener and its manufacturing method |
| CN108730294B (en) * | 2018-06-25 | 2020-07-17 | 浙江劳士顿科技股份有限公司 | Pin shaft for welding robot joint and pin shaft assembling device |
| CN111720411B (en) * | 2020-05-29 | 2022-02-08 | 江苏永昊高强度螺栓有限公司 | Bolt with thermosensitive element |
| CN112855710B (en) * | 2021-02-09 | 2024-04-19 | 常熟理工学院 | Nickel-titanium alloy self-sealing bolt |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202531562U (en) * | 2011-09-29 | 2012-11-14 | 北京有色金属研究总院 | Shape memory alloy fastener |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004060858A (en) * | 2002-07-31 | 2004-02-26 | Nec Tokin Corp | Screw |
| US20050244245A1 (en) * | 2004-04-30 | 2005-11-03 | Anatoly Efremov | Method and devices to limit a creep of mechanical fasteners |
| JP2007285338A (en) * | 2006-04-13 | 2007-11-01 | Nissan Motor Co Ltd | Engagement member and wave gear |
| JP5629308B2 (en) * | 2009-04-10 | 2014-11-19 | スリーエム イノベイティブ プロパティズ カンパニー | Blind fastener |
| US20130042461A1 (en) * | 2011-08-17 | 2013-02-21 | Composite Technology Development, Inc. | Shape memory polymer devices |
-
2013
- 2013-10-29 CN CN201310525180.0A patent/CN103527601B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202531562U (en) * | 2011-09-29 | 2012-11-14 | 北京有色金属研究总院 | Shape memory alloy fastener |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103527601A (en) | 2014-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103527601B (en) | A kind of attachment structure and securing member thereof | |
| CA2720477A1 (en) | Flange assembly with improved serviceability | |
| CA2712143A1 (en) | Balancing apparatus for rotor assembly | |
| US20030217548A1 (en) | Gas turbine and gas turbine power generator | |
| EP2378070A3 (en) | Turbine engine spacer | |
| EP2492455A3 (en) | A gas turbine joint assembly | |
| JP2012052523A (en) | Turbine blade assembly | |
| CN104847765B (en) | Carrying axle, the axis of guide, Assembly of pin, arm support and its assembly method and crane | |
| CN204213481U (en) | A kind of combined type hook nail | |
| WO2011119242A3 (en) | Press-fitting corrosion resistant liners in nozzles and casings | |
| EP2587159A3 (en) | Fuel injection assembly for use in turbine engines and method of assembling same | |
| EP2626633A3 (en) | Fuel Injection Assembly for use in Turbine Engines and Method of Assembling Same | |
| CN202612327U (en) | Riveting bolt | |
| CN103216335A (en) | Process of fabricating a fuel nozzel assembly, process of fabricating a fuel nozzle ring, and a fuel nozzle ring | |
| CN105465331A (en) | Walking box flange for mini-tiller | |
| CN202607596U (en) | Tool for laminating bush in narrow space | |
| CN206419471U (en) | A kind of protection structure of motorcycle engine gear-shift shaft | |
| CN206036053U (en) | Steam turbine shaft coupling | |
| CN105231736B (en) | Seamless wall hook | |
| CN215173033U (en) | Paddle operation oil pipe and oil tank of rotary-paddle type hydroelectric generating set | |
| CN204552990U (en) | Adjustable anchor ear support for EGR cooler | |
| CN202716219U (en) | Jig for oil seal assembly | |
| CN214788541U (en) | High-strength bucket shaft | |
| CN213117171U (en) | Steam turbine wheel axle bearing connection structure | |
| CN216781703U (en) | Multifunctional deformation tool for replacing fan yaw brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |