CN-224228029-U - Two-way self-resetting SMA damper

Abstract

The utility model relates to a two-way self-resetting SMA damper which comprises a shell, wherein two sliding blocks are respectively arranged in the shell in a sliding way, two limiting plates are arranged between the two sliding blocks at intervals, a plurality of SMA double-end studs are connected between the two sliding blocks, the upper end face and the lower end face of each sliding block are designed to be inclined planes, a plurality of SMA single-end studs are respectively arranged at the corresponding upper end and the lower end of the shell at intervals along the sliding direction of the sliding blocks, the lengths of the SMA single-end studs are gradually increased from inside to outside, stress rods are arranged on the two sliding blocks, cylindrical protrusions are arranged on the stress rods between the two sliding blocks, one end of the shell is provided with an end cover, the other end of the shell is provided with a sealing cover, and the sealing cover is provided with a through hole for the stress rods to extend. Has the advantages of reasonable structural design, stronger energy consumption capability, stronger self-resetting capability and the like.

Inventors

• GUO RONG
• LIANG ZHAOCHEN
• ZHANG MIN

Assignees

• 太原科技大学

Dates

Publication Date

20260512

Application Date

20250609

Claims (6)

1. 1. The utility model provides a two-way self-reset SMA attenuator, its characterized in that, includes the casing, slip is equipped with two sliders in the casing respectively, two the interval is equipped with two limiting plates between the slider, two be connected with many SMA double-ended screw bolts between the slider, two terminal surfaces design into the inclined plane about the slider, corresponding the casing upper and lower both ends are followed respectively the slip direction interval of slider is equipped with a plurality of SMA single-ended screw bolts, and from inside to outside the length of SMA single-ended screw bolt increases gradually, two be equipped with the atress pole on the slider, and be equipped with the cylinder arch on the atress pole between two sliders, casing one end is equipped with the end cover, and the other end is equipped with sealed lid, be equipped with the pull ring on the end cover, be equipped with the through-hole that supplies the atress pole to stretch out on the sealed lid.
2. 2. The two-way self-resetting SMA damper according to claim 1, wherein the shell comprises an upper plate and a lower plate which are vertically arranged at intervals, a front plate is arranged at the front end between the upper plate and the lower plate, a rear plate is arranged at the rear end between the upper plate and the lower plate, sliding rails are arranged on the inner sides of the front plate and the rear plate, sliding grooves matched with the sliding rails are respectively arranged on the two sides of the corresponding sliding blocks, and limiting plates are respectively arranged on the inner sides of the upper plate and the lower plate.
3. 3. A two-way self-resetting SMA damper according to claim 1 or 2, wherein the SMA stud is secured to the slider by a nut.
4. 4. A two-way self-resetting SMA damper as recited in claim 3, wherein the SMA Shan Touluo cylinder is secured to either the upper or lower plate by nuts.
5. 5. The two-way self-resetting SMA damper of claim 4, wherein the SMA Shan Touluo post lower end is spherical in design.
6. 6. The two-way self-resetting SMA damper of claim 5, wherein the end cap and the sealing cap are mounted to the upper and lower plates, respectively, by bolts.

Description

Two-way self-resetting SMA damper Technical field: The utility model relates to the technical field of dampers, in particular to a two-way self-resetting SMA damper. The background technology is as follows: Shape Memory Alloy (SMA) is a typical metal smart material and has characteristic properties of shape memory effect, superelastic energy, high damping and the like, and has important application in key parts and core systems in the fields of national economy and national defense, wherein the performance study of SMA material can be referred to the doctor paper published before the inventor, namely the random dynamics study of a typical shape memory alloy system. In the research and development cooperation with the building enterprise technology, the working principle of the SMA damper adopted by the enterprise at present is that the SMA material is used for carrying out one-way reset matched friction to carry out energy dissipation and shock absorption, and a specific structure can refer to a variable friction self-reset SMA damper (authorized bulletin number: CN 222333012U) disclosed in China patent and an SMA self-reset sliding friction damper (application bulletin number: CN 111962698A) disclosed in China patent. However, this type of SMA damper is relatively limited in friction energy consumption and resetting ability, and cannot meet the higher requirements of shock resistance and vibration absorption. Based on enterprise requirements, the SMA damper is upgraded and improved on the basis of the existing SMA damper, so that the energy dissipation and vibration reduction capacity is further improved. The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors. The utility model comprises the following steps: The utility model aims to solve the problems in the prior art, and provides the two-way self-resetting SMA damper which subverts the design concept that the existing damper adopts the SMA material to realize one-way resetting and friction energy consumption, creatively adopts the two-way SMA material, and has the advantages of reasonable structural design, stronger energy consumption capability, stronger self-resetting capability and the like. The utility model realizes the aim by adopting the following technical scheme: The utility model provides a two-way self-resetting SMA attenuator, includes the casing, it is equipped with two sliders to slide respectively in the casing, two the interval is equipped with two limiting plates between the slider, two be connected with many SMA double-ended screw bolts between the slider, two terminal surfaces design into the inclined plane about the slider, correspond both ends are equipped with a plurality of SMA single-ended screw bolts along the slip direction interval of slider respectively about the casing, and from inside to outside the length of SMA single-ended screw bolt increases gradually, two be equipped with the atress pole on the slider, and be equipped with the cylinder arch on the atress pole between two sliders, casing one end is equipped with the end cover, and the other end is equipped with sealed lid, be equipped with the pull ring on the end cover, be equipped with the through-hole that supplies the atress pole to stretch out on the sealed lid. The shell comprises an upper plate and a lower plate which are vertically arranged at intervals, a front plate is arranged at the front end between the upper plate and the lower plate, a rear plate is arranged at the rear end of the upper plate, sliding rails are arranged on the inner sides of the front plate and the rear plate, sliding grooves matched with the sliding rails are respectively arranged on the two sides of the corresponding sliding blocks, and limiting plates are respectively arranged on the inner sides of the upper plate and the inner sides of the lower plate. And the SMA double-end stud is fastened on the sliding block through a nut. The SMA Shan Touluo column is fastened on the upper plate or the lower plate through nuts. The lower end of the SMA Shan Touluo column is designed into a sphere. The end cover and the sealing cover are respectively arranged on the upper plate and the lower plate through bolts. By adopting the technical scheme, the utility model can bring the following beneficial effects: (1) The tensile capacity in the transverse direction and the longitudinal direction is improved by designing the SMA double-end stud and the SMA Shan Touluo column, so that the earthquake resistance is improved. (2) The length of the SMA single-head stud is increased along with the inclined plane on the sliding block through layout, so that the energy consumption effect better than friction can be achieved, the self-resetting friction plate has self-resetting capability, and the energy consumption capability is more durable and reliable compared with that of a traditional friction plate. (3) By designing two sliding blocks and matched limiting plates