CN218091619U

CN218091619U - Novel SMA cable tip anchor is connected device

Info

Publication number: CN218091619U
Application number: CN202221972497.XU
Authority: CN
Inventors: 石菲; 李启豪; 张卫多; 林子程; 周云; 张超
Original assignee: Guangzhou University
Current assignee: Guangzhou University
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-12-20
Anticipated expiration: 2032-07-28

Abstract

The utility model relates to a SMA tip anchor field just discloses a novel SMA cable tip anchor connecting device, including the anchor chamber that runs through from top to bottom, the inside in anchor chamber is provided with the SMA cable, the terminal stopper of SMA cable has the spike, and the spike is located the inside in anchor chamber, be provided with housing screw on the inside corresponding spike terminal position of anchor chamber, this novel SMA cable tip anchor connecting device provides a simple, convenient, effectual anchor means for the design, experiment and the use of SMA cable, avoids the SMA cable to slide or drop and lead to becoming invalid in experimental or actual engineering uses.

Description

Novel SMA cable tip anchor is connected device

Technical Field

The utility model relates to a SMA tip anchor field specifically is a novel SMA cable tip anchor is connected device.

Background

With the rapid development of the structural vibration control field, the SMA has a very good application prospect due to the good energy consumption capability and the self-resetting capability of the SMA shape memory alloy, however, the SMA cable is used as a main component of the SMA support and the SMA damper, how to anchor the SMA cable is a reliable guarantee and a foundation for effectively realizing the working mechanism of the SMA support, and is also a key link for designing and manufacturing the SMA support component and the SMA damper in the later period, and meanwhile, the end connection mode of the SMA cable is also one of important factors influencing the engineering application of the SMA cable. In order to solve the problem of the end anchoring of the SMA cable, a novel end anchoring and connecting device of the SMA cable is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a novel SMA cable tip anchor is connected device has solved foretell problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel SMA cable tip anchor connecting device, includes the anchor chamber that runs through from top to bottom, the inside in anchor chamber is provided with the SMA cable, the terminal stopper of SMA cable has the spike, and the spike is located the inside in anchor chamber, the inside of anchor chamber corresponds and is provided with housing screw on the spike terminal position.

Preferably, the spike is the centrum form of thick right thin on the left side, one section region that the inner wall of anchor chamber corresponds the spike is the throat form, and the regional shape of the inner wall of anchor chamber corresponding spike and spike shape adaptation, places the SMA cable inside the anchor chamber, then packs the spike into the inside of anchor chamber for the spike is pushed down SMA cable and is terminal, and when the SMA cable was pulled, the frictional force between SMA cable and spike will drive the spike gliding and further compress tightly the SMA cable, thereby makes the SMA cable pressurized tip pull more tight.

Preferably, the inner wall of the anchor cavity is provided with a third thread at a position corresponding to the compression screw, the outer wall surface of the compression screw is provided with a first thread, the compression screw is in threaded connection with the third thread on the anchor cavity through the first thread, the tail end of the compression screw is provided with a hexagonal hole, compression is tightened through a hexagonal wrench, and the compression screw abuts against the long nail so as to fix and restrain the sleeve head to move.

Preferably, the outer wall surface of the anchor cavity is provided with a second thread, the anchor cavity is in threaded connection with a hexagonal nut through the second thread, and connection looseness is prevented by the arrangement of the hexagonal nut. In addition, the hexagonal nut has a prestress adjusting effect in later-stage SMA support application, and pretension is applied to the SMA cable in the SMA support through adjusting the hexagonal nut.

Preferably, the upper end of the anchor cavity is provided with a local cutting bayonet, and the local cutting bayonet is a plane and is used for preventing the anchor cavity from rotating when the support is applied with pretension to the SMA cable in the support in the later period.

Preferably, the SMA cable is formed of SMA wires, the SMA is a shape memory alloy, and the SMA cable is formed of a plurality of shape memory alloy bundles, each bundle including a plurality of shape memory alloy wires.

(III) advantageous effects

Compared with the prior art, the utility model provides a novel SMA cable tip anchor is connected device possesses following beneficial effect:

1. this novel SMA cable tip anchor connecting device provides a simple, convenient, effectual anchor means for the design, experiment and the use of SMA cable, avoids the SMA cable to slide or drop and lead to becoming invalid in experimental or actual engineering application.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic cross-sectional view of the anchor chamber of the present invention;

FIG. 4 isbase:Sub>A schematic cross-sectional view A-A of FIG. 3;

fig. 5 is a schematic cross-sectional view B-B in fig. 3.

In the figure: 1. an anchor cavity; 2. a long nail; 3. an SMA cable; 4. a compression screw; 5. a first thread; 6. a hexagonal hole; 7. a second thread; 8. a third thread; 9. a hexagonal nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a novel SMA cable end anchoring connection device includes an anchor chamber 1 penetrating from top to bottom, an SMA cable 3 is disposed inside the anchor chamber 1, a spike 2 is plugged at the end of the SMA cable 3, the spike 2 is disposed inside the anchor chamber 1, and a compression screw 4 is disposed inside the anchor chamber 1 and corresponding to the end of the spike 2.

Further, spike 2 is the centrum form of the thick right thin on the left side, and one section region that the inner wall of anchor chamber 1 corresponds spike 2 is the form of necking down, and the regional shape of the inner wall of anchor chamber 1 corresponding spike 2 and spike 2 shape adaptation, place SMA cable 3 in anchor chamber 1 inside, then fill in anchor chamber 1 inside with spike 2 for 3 ends of SMA cable are pushed down to spike 2, when SMA cable 3 was pulled, the frictional force between SMA cable 3 and spike 2 will drive spike 2 gliding further compress tightly SMA cable 3, thereby make 3 pressurized tip of SMA cable pull more and more tightly.

Further, set up three 8 on the anchor chamber 1 inner wall corresponds compression screw 4 position, set up one 5 on the outer wall of compression screw 4, compression screw 4 is in the same place through three 8 threaded connection of screw thread on 5 and the anchor chamber 1 of screw thread, and the hexagonal hole 6 has been seted up to compression screw 4's end, tightens up through the hexagonal spanner and compresses tightly, thereby compression screw 4 withstands spike 2 to the first motion of fixed restraint cover.

Further, the outer wall surface of the anchor cavity 1 is provided with a second thread 7, the anchor cavity 1 is in threaded connection with a hexagonal nut 9 through the second thread 7, and connection looseness is prevented by the arrangement of the hexagonal nut 9. In addition, the hexagonal nut 9 has a prestress adjusting function in later-stage SMA support application, and pretension is applied to the SMA cable 3 in the SMA support by adjusting the hexagonal nut 9.

Furthermore, the upper end of the anchor cavity 1 is provided with a local cutting bayonet which is a plane and is used for preventing the anchor cavity 1 from rotating when the SMA cable 3 exerts pretension force on the support in the later period.

Further, the SMA cable 3 is formed of SMA wires, the SMA is a shape memory alloy, and the SMA cable 3 is formed of a plurality of shape memory alloy bundles, each bundle including a plurality of shape memory alloy wires.

When using, insert the anchor chamber 1 with SMA cable 3 to with 3 tip cable SMA silks of SMA cable scatter, place spike 2 in the middle of the SMA silk that scatters, make the SMA silk around 3 evenly distributed of SMA cable, put into anchor chamber 1 inside with spike 2 and SMA silk, and compress tightly spike 2 through mechanical pressurization, put into housing screw 4, adopt hex wrench to screw up housing screw 4, make housing screw 4 top tighten spike 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel SMA cable tip anchor connecting device, includes anchor chamber (1) that runs through from top to bottom, its characterized in that: the anchor chamber (1) inside is provided with SMA cable (3), the end stopper of SMA cable (3) has spike (2), and spike (2) are located the inside in anchor chamber (1), be provided with housing screw (4) on anchor chamber (1) inside corresponding spike (2) terminal position.

2. The novel SMA cable end anchoring connection device of claim 1, wherein: the left side of the long nail (2) is thick, the right side of the long nail is thin, a section of area of the inner wall of the anchor cavity (1) corresponding to the long nail (2) is in a necking shape, and the inner wall of the anchor cavity (1) corresponds to the shape of the area of the long nail (2) and is matched with the shape of the long nail (2).

3. The novel SMA cable end anchor connection device of claim 1, wherein: the anchor cavity (1) is provided with a third thread (8) on the position corresponding to the compression screw (4), the outer wall surface of the compression screw (4) is provided with a first thread (5), the compression screw (4) is in threaded connection with the third thread (8) on the anchor cavity (1) through the first thread (5), and the tail end of the compression screw (4) is provided with a hexagonal hole (6).

4. The novel SMA cable end anchor connection device of claim 1, wherein: the outer wall surface of the anchor cavity (1) is provided with a second thread (7), and the anchor cavity (1) is in threaded connection with a hexagonal nut (9) through the second thread (7).

5. The novel SMA cable end anchor connection device of claim 1, wherein: the upper end of the anchor cavity (1) is provided with a local cutting and clamping opening.

6. The novel SMA cable end anchor connection device of claim 1, wherein: the SMA cable (3) is composed of SMA wires.