CN105179394A - Titanium nickel iron memory alloy fastener and connector with same - Google Patents
Titanium nickel iron memory alloy fastener and connector with same Download PDFInfo
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- CN105179394A CN105179394A CN201510512456.0A CN201510512456A CN105179394A CN 105179394 A CN105179394 A CN 105179394A CN 201510512456 A CN201510512456 A CN 201510512456A CN 105179394 A CN105179394 A CN 105179394A
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- memory alloy
- fastening piece
- titanium
- alloy fastening
- ferronickel
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Abstract
The invention discloses a titanium nickel iron memory alloy fastener and a connector with the same and relates to the technical field of connection of fasteners. An inner hole of the titanium nickel iron memory alloy fastener is a cylindrical hole, an annular rib is arranged on the inner surface of the cylindrical hole, and the axis of the annular rib and the axis of the cylindrical hole coincide. The connector comprises a connection rod and the titanium nickel iron memory alloy fastener; one end of the connection rod is a head portion, the other end of the connection rod is a polished shaft, the center axis of the polished shaft is perpendicular to the end face of the head portion, and the titanium nickel iron memory alloy fastener is arranged on the polished shaft in a sleeving mode. The titanium nickel iron memory alloy fastener and the connector with the same have the advantages that the titanium nickel iron memory alloy fastener is simple in structure, convenient to install and high in connection strength, and professional installation tools are not needed. The connector is easy to machine, only an existing bolt machining process needs to be simplified, original threads are removed, the root portion of a thread is not prone to being broken, and the strength of an original screw part is improved.
Description
Technical field
The present invention relates to technical field of fastening, be specifically related to a kind of titanium ferronickel memory alloy fastening piece and there is its link.
Background technique
Being threaded is realize being interconnected between part by the pretightening force of screw thread, and the pretightening force of fastening piece is the key parameter of fastening piece switching performance and protection fastening piece, needs predetermined pretightening force to provide mounting torque.Bring a lot of engineering problems like this, need setting using the setting tool of specialty, reserved enough installing spaces and pre-fastening moment etc.Need the technological methodes such as employing is threaded, and coupling torque, when torque wrench enforcement is determined in use, can not ensure the conformity of join strength, bring the instability of anatomical connectivity, can destroy through a certain weak location of being everlasting, and have higher requirement to installing space etc.Be threaded and need to carry out machining screw on screw rod, screw thread add trade union brings surface integrity destruction at thread root, reduce the fatigue behaviour of structure.
Summary of the invention
The object of this invention is to provide a kind of titanium ferronickel memory alloy fastening piece and there is its link, to solve a kind of problem at least existed in background technique.
Technological scheme of the present invention is: a kind of titanium ferronickel memory alloy fastening piece, and described titanium ferronickel memory alloy fastening piece endoporus is set to cylindrical hole, and cylindrical hole internal surface is provided with annular muscle, the axis of annular muscle and the dead in line of described cylindrical hole.
By expanding in advance for the annular muscle on titanium ferronickel memory alloy fastening piece endoporus, be installed on link during use, when ambient temperature is higher than titanium ferronickel memory alloy austenite transformation temperature, the endoporus on annular muscle shrinks, and is locked by link.
Preferably, 1 annular muscle is at least provided with in described titanium ferronickel memory alloy fastening piece cylindrical hole.Annular muscle endoporus is expanding in advance, and titanium ferronickel memory alloy fastening piece is considered from join strength, wishes there is larger magnitude of interference between connected piece, and from the viewpoint of installation, then wishes larger assemblage gap, to facilitate installation.Determine that the principle of assemblage gap preferentially ensures join strength, under the prerequisite meeting matching requirements, fit up gap should be as far as possible little.When an annular muscle can not provide enough join strengths, multiple annular muscle can be set.
Preferably, the profile of described titanium ferronickel memory alloy fastening piece is set to cylindrical, square or hexagonal structure.
Preferably, the axial bi-side of described titanium ferronickel memory alloy fastening piece are parallel.
Preferably, described annular muscle is vertical with the bore area of described titanium ferronickel memory alloy fastening piece.
A kind of link includes connecting rod and above-described any one titanium ferronickel memory alloy fastening piece, wherein,
Described connecting rod one end is head, and the other end is optical axis; The central axis of optical axis is vertical with the end face of head, and titanium ferronickel memory alloy fastening piece is set on optical axis.
Preferably, the head of described link is set to outer six sides, interior six sides or cylinder boss structure.
The processing of described connecting rod can adopt existing bolt processing technic featuring, and difference is that the screw thread at existing bolt screw rod position does not need processing, only needs to be processed into polished rod as requested.
Usefulness of the present invention is: described titanium ferronickel memory alloy fastener constructions is simple, easy for installation and do not need professional setting tool, and join strength is higher.Described link processing is simple, only needs the processing technology simplifying existing bolt, eliminates original screw thread, not easily fractureed at thread root, improve the intensity of original screw portion.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of titanium ferronickel memory alloy fastening piece of first embodiment of the invention;
Fig. 2 is the structural representation of the link with the titanium ferronickel memory alloy fastening piece shown in Fig. 1;
Fig. 3 is the schematic diagram of the link of embodiment two;
Fig. 4 is the schematic diagram of the titanium ferronickel memory alloy fastening piece of embodiment three.
Wherein: 1-titanium ferronickel memory alloy fastening piece, 11-annular muscle, 2-connecting rod, 21-head, 22-optical axis, 3-connected piece.
Embodiment
For making object of the invention process, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
Embodiment 1:
As shown in Figure 1, a kind of titanium ferronickel memory alloy fastening piece, described titanium ferronickel memory alloy fastening piece 1 endoporus is set to as cylindrical hole, and cylindrical hole internal surface is provided with annular muscle 11.
Annular muscle 11 is provided with 1, and vertical with described cylindrical hole internal surface.Be understandable that, the number of described annular muscle 11 can also set according to actual conditions.Such as, in an alternative embodiment, the quantity of annular muscle 11 is set to 2, and two annular muscle 11 are arranged in parallel at the endoporus axial direction of titanium ferronickel memory alloy fastening piece 1, and perpendicular to described bore area; As required, the quantity of annular muscle 11 can be set to more than 1 or 1.
The axial both ends of the surface of titanium ferronickel memory alloy 1 are parallel to each other, and its profile is set to cylindrical.Be understandable that, the profile of titanium ferronickel memory alloy fastening piece 1 can also set according to actual conditions.Such as, in an alternative embodiment, the profile of titanium ferronickel memory alloy fastening piece 1 is set to six squares; In another alternative, the profile of titanium ferronickel memory alloy fastening piece 1 is set as square.
As described in Figure 2, a kind of link, includes connecting rod 2, titanium ferronickel memory alloy fastening piece 1.
Titanium ferronickel memory alloy fastening piece 1 is titanium ferronickel memory alloy fastening piece 1 described above.
One end of connecting rod 2 is head 21, and the other end is optical axis 22, and the central axis upright of optical axis 22 is in the end face of head 21.The profile of head 21 is set to outer hexagonal structure.Be understandable that, described head 21 can also set according to actual conditions.Such as, in an alternative embodiment, head 21 is set to interior hexagonal structure, and in another alternative, head 21 is set to cylinder boss structure.
By expanding in advance for the annular muscle 11 on titanium ferronickel memory alloy fastening piece 1 endoporus, be installed on connecting rod 2 during use, when ambient temperature is higher than titanium ferronickel memory alloy austenite transformation temperature, the endoporus on annular muscle 11 shrinks, and is locked by link.
The profile of titanium ferronickel memory alloy fastening 1 is set to cylindrical structural.Be provided with 1 annular muscle 11 in its annulus hole, annular muscle 11 endoporus is expanding in advance, reaches with the Spielpassung of connected piece at 0.3mm ~ 0.6mm.Titanium ferronickel memory alloy fastening piece 1 is considered from join strength, wishes there is larger magnitude of interference between connected piece, and from the viewpoint of installation, then wishes larger assemblage gap, to facilitate installation.Because the contour projector of the annular muscle 11 of titanium ferronickel memory alloy fastening 1 is limited, determine that the principle of assemblage gap preferentially ensures join strength, under the prerequisite meeting matching requirements, fit up gap should be as far as possible little, the magnitude of interference that provides larger.
The head 21 of link is set to outer hexagonal structure, and the processing of connecting rod can adopt existing bolt processing technic featuring, and difference is that the place of existing bolt is that the screw thread at screw rod position does not need processing, only needs to be processed into optical axis 22 as requested.
Embodiment 2:
As shown in Figure 3, another embodiment of a kind of link, substantially identical with above-described embodiment 1, its difference is: titanium ferronickel memory alloy fastening piece 1 endoporus is provided with 2 annular muscle, 11, two annular muscle 11 endoporus axial direction is uniform and be arranged in parallel.
Embodiment 3:
As shown in Figure 4, another embodiment of titanium ferronickel memory alloy fastening piece 1, above-described embodiment 1 is substantially identical, its difference is: titanium ferronickel memory alloy fastening piece 1 is provided with 4 annular muscle 11, the endoporus two ends of described titanium ferronickel memory alloy fastening piece 1 are respectively provided with two annular muscle 11, connected piece 3 penetrates the endoporus of annular muscle 11, and after annular muscle 11 endoporus shrinks, two connected pieces 3 are fastened to be connected as one.
Finally it is to be noted: above embodiment only in order to technological scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (7)
1. a titanium ferronickel memory alloy fastening piece, it is characterized in that: described titanium ferronickel memory alloy fastening piece (1) endoporus is set to cylindrical hole, cylindrical hole internal surface is provided with annular muscle (11), the axis of annular muscle (11) and the dead in line of described cylindrical hole.
2. titanium ferronickel memory alloy fastening piece according to claim 1, is characterized in that: be at least provided with 1 annular muscle (11) in described titanium ferronickel memory alloy fastening piece (1) cylindrical hole.
3. titanium ferronickel memory alloy fastening piece according to claim 1, is characterized in that: described titanium ferronickel memory alloy fastening piece (1) profile is set to cylindrical, square or hexagonal structure.
4. titanium ferronickel memory alloy fastening piece according to claim 1, is characterized in that: the axial bi-side of described titanium ferronickel memory alloy fastening piece (1) are parallel.
5. titanium ferronickel memory alloy fastening piece according to claim 1, is characterized in that: described annular muscle (11) is vertical with the bore area of described titanium ferronickel memory alloy fastening piece (1).
6. a link, is characterized in that: described link includes titanium ferronickel memory alloy fastening piece (1) in connecting rod (2) and claim 1 to 5 described in any one, wherein,
Described connecting rod (2) one end is head (21), and the other end is optical axis (22); The central axis of optical axis (22) is vertical with the end face of head (21), and titanium ferronickel memory alloy fastening piece (1) is set on optical axis (22).
7. link according to claim 6, is characterized in that: described head (21) is set to outer six sides, interior six sides or cylinder boss structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510512456.0A CN105179394A (en) | 2015-08-19 | 2015-08-19 | Titanium nickel iron memory alloy fastener and connector with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510512456.0A CN105179394A (en) | 2015-08-19 | 2015-08-19 | Titanium nickel iron memory alloy fastener and connector with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105179394A true CN105179394A (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510512456.0A Pending CN105179394A (en) | 2015-08-19 | 2015-08-19 | Titanium nickel iron memory alloy fastener and connector with same |
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| CN (1) | CN105179394A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989863A (en) * | 2017-11-22 | 2018-05-04 | 有研亿金新材料有限公司 | A kind of self-inflated connector for fastening boards and its preparation and application |
| CN109882490A (en) * | 2019-03-22 | 2019-06-14 | 苏州国嘉记忆合金有限公司 | A kind of combined intelligent external member and production method with high anti-loosening property |
| CN109915444A (en) * | 2017-12-12 | 2019-06-21 | 斯凯孚公司 | Structural unit and manufacturing method including cylindrical building block and sheet metal elements |
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| EP0308291A1 (en) * | 1987-09-04 | 1989-03-22 | AEROSPATIALE Société Nationale Industrielle | Device for exerting a variable pressure on an item by means of a bearing |
| JPH0235207A (en) * | 1988-07-21 | 1990-02-05 | Hitachi Ltd | Fixing means for rotor, rotor using same and manufacture thereof |
| US5779281A (en) * | 1995-04-17 | 1998-07-14 | Advanced Metal Components, Inc. | Forming a connection to an object |
| CN103194694A (en) * | 2013-03-18 | 2013-07-10 | 大连交通大学 | Iron-based shape memory alloy locking bolt as well as production and application method thereof |
| CN104033466A (en) * | 2014-05-27 | 2014-09-10 | 潍柴动力股份有限公司 | Threaded connection assembly |
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2015
- 2015-08-19 CN CN201510512456.0A patent/CN105179394A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0308291A1 (en) * | 1987-09-04 | 1989-03-22 | AEROSPATIALE Société Nationale Industrielle | Device for exerting a variable pressure on an item by means of a bearing |
| JPH0235207A (en) * | 1988-07-21 | 1990-02-05 | Hitachi Ltd | Fixing means for rotor, rotor using same and manufacture thereof |
| US5779281A (en) * | 1995-04-17 | 1998-07-14 | Advanced Metal Components, Inc. | Forming a connection to an object |
| CN103194694A (en) * | 2013-03-18 | 2013-07-10 | 大连交通大学 | Iron-based shape memory alloy locking bolt as well as production and application method thereof |
| CN104033466A (en) * | 2014-05-27 | 2014-09-10 | 潍柴动力股份有限公司 | Threaded connection assembly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989863A (en) * | 2017-11-22 | 2018-05-04 | 有研亿金新材料有限公司 | A kind of self-inflated connector for fastening boards and its preparation and application |
| CN109915444A (en) * | 2017-12-12 | 2019-06-21 | 斯凯孚公司 | Structural unit and manufacturing method including cylindrical building block and sheet metal elements |
| US11273400B2 (en) | 2017-12-12 | 2022-03-15 | Aktiebolaget Skf | Structural unit including a cylindrical component and a metal-plate element, and manufacturing method |
| CN109882490A (en) * | 2019-03-22 | 2019-06-14 | 苏州国嘉记忆合金有限公司 | A kind of combined intelligent external member and production method with high anti-loosening property |
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Application publication date: 20151223 |