CN210087884U - Shape memory alloy wire damper capable of recovering function - Google Patents
Shape memory alloy wire damper capable of recovering function Download PDFInfo
- Publication number
- CN210087884U CN210087884U CN201920261078.7U CN201920261078U CN210087884U CN 210087884 U CN210087884 U CN 210087884U CN 201920261078 U CN201920261078 U CN 201920261078U CN 210087884 U CN210087884 U CN 210087884U
- Authority
- CN
- China
- Prior art keywords
- shape memory
- memory alloy
- connecting section
- screw groove
- groove body
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Vibration Dampers (AREA)
Abstract
The utility model discloses a shape memory alloy silk attenuator of recoverable function, including the nut linkage segment and the thread groove linkage segment that the screw thread cup jointed, the winding has many rings of shape memory alloy silk on the thread groove linkage segment, and shape memory alloy silk is in the prestretching state that receives. The utility model relates to a shape memory alloy silk attenuator of recoverable function, simple structure, shape memory alloy silk are in the state that receives the pretension, and when receiving the effect of external force and producing axial tension or axial pressure, the tension of shape memory alloy silk increases to can play good shock attenuation effect.
Description
Technical Field
The utility model belongs to the technical field of the shock attenuation energy absorber, a shape memory alloy silk attenuator of recoverable function is related to.
Background
The Shape Memory Alloy (SMA) material is an intelligent metal sensing and driving material with excellent performance, and has super-elasticity performance and shape memory effect. The superelasticity of the shape memory alloy is shown in that the material deforms under the action of an external force, the material returns to the original shape after the external force is removed, and the shape memory alloy participates in energy consumption and forms a fuller hysteretic ring along with the application and the removal of the external force. At present, many shock-absorbing dampers based on shape memory alloy materials are developed, but because the shape memory alloy wires can exert the characteristics thereof in a tensioned state, the shock-absorbing dampers based on the shape memory alloy materials have complex structures, large part connection difficulty and high manufacturing cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a shape memory alloy silk attenuator of recoverable function, simple structure, shock attenuation is effectual.
The utility model adopts the technical scheme that a shape memory alloy silk attenuator of recoverable function, including the nut linkage segment and the thread groove linkage segment that the screw thread cup jointed, the winding has many rings of shape memory alloy silk on the thread groove linkage segment, and shape memory alloy silk is in the atress state of stretching in advance.
The utility model discloses a characteristics still lie in:
the nut connecting section comprises a screw rod, the screw groove connecting section comprises a cylindrical screw groove body, an internal thread matched with the screw rod is formed in the inner wall of the screw groove body, a plurality of long grooves are radially formed in the side wall of the screw groove body, and the side wall of the screw groove body is divided into a plurality of screw groove walls distributed in a circumferential mode through the plurality of long grooves.
The screw thread on the screw rod is a self-locking screw thread.
One end of the screw rod is fixedly connected with a prismatic mounting section, an upper force transmission column is fixedly connected to the prismatic mounting section, and the upper force transmission column and the screw rod are coaxially mounted.
The end of the screw groove body opposite to the opening is fixedly connected with a lower force transmission column.
The outer wall of the spiral groove body is provided with a plurality of circles of grooves along the circumferential direction, and each circle of groove is wound with a shape memory alloy wire.
A plurality of inner grooves are formed in the inner circumference of the screw groove body, and shape memory alloy wires are wound on each inner groove.
The utility model has the advantages that:
the utility model relates to a shape memory alloy silk attenuator of recoverable function, simple structure, shape memory alloy silk are in the state that receives the pretension, and when receiving the effect of external force and producing axial tension or axial pressure, the tension of shape memory alloy silk increases to can play good cushioning effect.
Drawings
FIG. 1 is a schematic structural view of a shape memory alloy wire damper with recoverable function according to the present invention;
FIG. 2 is a schematic view of another structure of a functional restorable shape memory alloy wire damper according to the present invention;
FIG. 3 is a schematic structural view of a nut connecting section of a shape memory alloy wire damper with recoverable function according to the present invention;
FIG. 4 is a schematic structural view of a screw groove connection section of a shape memory alloy wire damper with recoverable function according to the present invention;
fig. 5 is another structural schematic diagram of the screw groove connecting section in the shape memory alloy wire damper with recoverable function of the present invention.
In the figure, 1, a nut connecting section, 1-1, an upper force transmission column, 1-2, a prism mounting section, 1-3, a screw rod, 2, a screw groove connecting section, 2-1, a lower force transmission column, 2-2, a screw groove wall, 2-3, a screw groove body and 3, a shape memory alloy wire.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
A shape memory alloy wire damper capable of recovering functions is shown in figures 1, 2 and 3 and comprises a nut connecting section 1, wherein the nut connecting section 1 comprises screws 1-3, threads on the screws 1-3 are self-locking threads, one ends of the screws 1-3 are fixedly connected with prism mounting sections 1-2 in a hexagonal prism shape, upper force transmission columns 1-1 are fixedly connected on the prism mounting sections 1-2, and the upper force transmission columns 1-1 and the screws 1-3 are coaxially mounted.
As shown in fig. 1, fig. 2, fig. 4 and fig. 5, the shape memory alloy wire damper capable of recovering functions further comprises a spiral groove connecting section 2, the spiral groove connecting section 2 comprises a cylindrical spiral groove body 2-3, a lower force transmission column 2-1 is fixedly connected to one end, opposite to the opening, of the spiral groove body 2-3, an internal thread matched with the screw rod 1-3 is formed in the inner wall of the spiral groove body 2-3, a plurality of long grooves are radially formed in the side wall of the spiral groove body 2-3, and the side wall of the spiral groove body 2-3 is divided into a plurality of spiral groove walls 2-2 which are circumferentially distributed by the plurality of long grooves;
the other end of the screw rod 1-3 extends into the screw groove body 2-3 from one end of the opening of the screw groove body 2-3, so that the nut connecting section 1 and the screw groove body 2-3 are sleeved through threads, a gap is reserved between the opening end of the screw groove body 2-3 and the prism installation section 1-2, and a gap is reserved between the end part of the other end of the screw rod 1-2 and the bottom in the screw groove body 2-3. The spiral groove connecting section 2 is wound with a plurality of circles of shape memory alloy wires 3, and the shape memory alloy wires 3 are in a pre-tensioned state. The shape memory alloy wire 3 has two winding modes, one is as shown in figure 1 and figure 4, the outer wall of the spiral groove body 2-3 is provided with a plurality of circles of grooves along the circumferential direction, and each circle of grooves is wound with the shape memory alloy wire 3; in the other way, as shown in fig. 2 and 5, a plurality of inner grooves are formed in the inner circumference of the screw groove body 2-3, and each inner groove is wound with a shape memory alloy wire 3.
In the shape memory alloy wire damper with the recoverable function, the nut connecting section 1 is not strongly connected with the screw groove connecting section 2, so that the shape memory alloy wire 3 in a pre-tensioned state is wound and connected after the nut connecting section 1 is connected with the screw groove connecting section 2 through the self-locking screw thread, and the connection reliability between the nut connecting section 1 and the screw groove connecting section 2 can be enhanced; the nut connecting section 1 is in threaded connection with the thread groove connecting section 2, when axial tension or axial pressure is generated after the nut connecting section 1 is subjected to external force, relative axial displacement is generated between the nut connecting section 1 and the thread groove connecting section 2, and the thread groove wall 2-2 expands outwards, so that the tension of the shape memory alloy wire 3 is increased, and the effects of shock absorption and energy consumption can be achieved; the gap between the opening end of the screw groove body 2-3 and the prism installation section 1-2 and the gap between the end part of the other end of the screw rod 1-2 and the inner bottom of the screw groove body 2-3 can ensure that the nut connection section 1 and the screw groove connection section 2 can generate axial relative displacement at a certain distance in front, thereby prolonging the working time of the shape memory alloy wire 3; if shake back nut linkage segment 1 and spiral groove linkage segment 2 and produce too big relative displacement, only need the relative position of adjusting nut linkage segment 1 and spiral groove linkage segment 2, can resume the utility model discloses the function of attenuator.
The utility model relates to a when using in shape memory alloy silk attenuator of restorable function, cup joint nut linkage segment 1 and 2 use tools of thread groove linkage segment earlier and be connected, install shape memory alloy silk 3 in preset position through the winding again.
The utility model discloses simple structure sets through nut linkage segment 1 and the spiral groove linkage segment 2 at self-locking threaded connection and is in the shape memory alloy silk 3 that receives the pretension state, the utility model discloses a attenuator is when receiving external force production axial tension or axial pressure, and nut linkage segment 1 produces axial displacement with spiral groove linkage segment 2 to increase the tension of shape memory alloy silk 3, thereby play the effect of shock attenuation power consumption. After the overlarge displacement is generated, the function of the damper can be recovered only by adjusting the relative position between the nut connecting section 1 and the screw groove connecting section 2, the operation is simple, and the damper can be repeatedly used.
Claims (3)
1. The shape memory alloy wire damper capable of recovering the function is characterized by comprising a nut connecting section (1) and a screw groove connecting section (2) which are in threaded sleeve joint, wherein a plurality of circles of shape memory alloy wires (3) are wound on the screw groove connecting section (2), the shape memory alloy wires (3) are in a pre-tensioned state, the nut connecting section (1) comprises a screw rod (1-3), the screw groove connecting section (2) comprises a cylindrical screw groove body (2-3), internal threads matched with the screw rod (1-3) are arranged on the inner wall of the screw groove body (2-3), a plurality of long grooves are radially arranged on the side wall of the screw groove body (2-3), the side wall of the screw groove body (2-3) is divided into a plurality of screw groove walls (2-2) which are circumferentially distributed by the plurality of long grooves, and threads on the screw rod (1-3) are self-locking threads, one end of the screw rod (1-3) is fixedly connected with a prism mounting section (1-2), the prism mounting section (1-2) is fixedly connected with an upper force transmission column (1-1), and the upper force transmission column (1-1) and the screw rod (1-3) are coaxially mounted.
2. The shape memory alloy wire damper capable of recovering the function as claimed in claim 1, wherein a lower force transmission column (2-1) is fixedly connected to one end of the thread groove body (2-3) opposite to the opening.
3. The shape memory alloy wire damper capable of recovering the function as claimed in claim 2, wherein the outer wall of the thread groove body (2-3) is circumferentially provided with a plurality of circles of grooves, and each circle of grooves is wound with the shape memory alloy wire (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920261078.7U CN210087884U (en) | 2019-02-26 | 2019-02-26 | Shape memory alloy wire damper capable of recovering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920261078.7U CN210087884U (en) | 2019-02-26 | 2019-02-26 | Shape memory alloy wire damper capable of recovering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087884U true CN210087884U (en) | 2020-02-18 |
Family
ID=69471264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920261078.7U Expired - Fee Related CN210087884U (en) | 2019-02-26 | 2019-02-26 | Shape memory alloy wire damper capable of recovering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087884U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811926A (en) * | 2019-02-26 | 2019-05-28 | 西安理工大学 | A kind of shape-memory alloy wire damper based on self-locking thread |
| CN112413033A (en) * | 2020-11-19 | 2021-02-26 | 吉林大学 | Friction and aeroelastic auxiliary spiral shape memory alloy wire wedge-shaped self-monitoring damper |
-
2019
- 2019-02-26 CN CN201920261078.7U patent/CN210087884U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811926A (en) * | 2019-02-26 | 2019-05-28 | 西安理工大学 | A kind of shape-memory alloy wire damper based on self-locking thread |
| CN112413033A (en) * | 2020-11-19 | 2021-02-26 | 吉林大学 | Friction and aeroelastic auxiliary spiral shape memory alloy wire wedge-shaped self-monitoring damper |
| CN112413033B (en) * | 2020-11-19 | 2021-11-23 | 吉林大学 | Friction and aeroelastic auxiliary spiral shape memory alloy wire wedge-shaped self-monitoring damper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210087884U (en) | Shape memory alloy wire damper capable of recovering function | |
| CN102287015B (en) | Self-resetting metal damper | |
| CN101598187B (en) | Composite damper | |
| CN109707103B (en) | Self-resetting shearing energy-consumption type replaceable coupling beam | |
| CN109720606B (en) | Leg type combined buffer for recoverable rocket landing mechanism | |
| CN108442555B (en) | Semi-active self-resetting mass rotating wheel composite magnetorheological fluid damper | |
| CN105422151B (en) | A kind of extensible energy-absorbing anchor | |
| CN210713320U (en) | Cylindrical pulling-pressing-twisting type shape memory alloy damper | |
| CN102535671B (en) | Bidirectional torsional lead shear damper | |
| CN109811926B (en) | Shape memory alloy wire damper based on self-locking threads | |
| CN210660921U (en) | Multifunctional fastener with multiple negative Poisson's ratio effect | |
| CN112301879A (en) | Horizontal omnidirectional displacement amplification type SMA energy dissipation and shock absorption device | |
| CN207660126U (en) | A kind of torsional mode composition metal energy dissipative device | |
| CN209941944U (en) | Self-locking shape memory alloy wire damper | |
| CN201386718Y (en) | Novel expansion screw | |
| CN210164144U (en) | Straight-through connecting sleeve of reinforcing steel bar | |
| CN221741641U (en) | Self-resetting slope friction energy dissipation type support | |
| CN208122016U (en) | A kind of disc type piezoelectric ceramics-shape-memory alloy wire energy-consumption damper | |
| CN207795957U (en) | A kind of vehicle shock absorber damping adjustment executing agency | |
| CN210216786U (en) | Shape memory alloy-rubber composite damper | |
| CN221682148U (en) | SMA wire bundle self-resetting damper | |
| CN216382159U (en) | Polygonal barrel structure knocking back bolt | |
| CN111365382A (en) | Integrative multi-functional formula rotary part middle part connecting device | |
| CN215487070U (en) | Contraction bolt for steel structure | |
| CN210216785U (en) | Energy dissipation damper with built-in rubber blocks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 Termination date: 20210226 |