CN215335215U - Steel wire rope-shape memory alloy composite shock insulation support - Google Patents
Steel wire rope-shape memory alloy composite shock insulation support Download PDFInfo
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- CN215335215U CN215335215U CN202023333330.2U CN202023333330U CN215335215U CN 215335215 U CN215335215 U CN 215335215U CN 202023333330 U CN202023333330 U CN 202023333330U CN 215335215 U CN215335215 U CN 215335215U
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Abstract
The utility model discloses a steel wire rope-shape memory alloy composite shock insulation support which comprises an upper layer plate and a lower layer plate, wherein a plurality of steel wire rope shock absorbers and a plurality of shape memory alloy wires are arranged between the upper layer plate and the lower layer plate, and the support can avoid inclination of a main machine caused by uneven stress.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment shock absorption, and relates to a steel wire rope-shape memory alloy composite shock insulation support.
Background
Pillar type electrical equipment, such as current transformers, lightning rods, circuit breakers and disconnectors, are important components of electrical power systems and are critical to the proper operation of electrical power systems. However, the electrical equipment has poor earthquake resistance and suffers serious damage in the past earthquake. The reasons for poor anti-seismic performance of the column-type electrical equipment are mainly three points: (1) the equipment mainly comprises a post porcelain insulator material, wherein the post porcelain insulator belongs to a brittle material and has poor bending resistance; (2) the equipment is also special in form, thin and high, and the upper part has larger mass. During earthquake, the root of the porcelain sleeve bears large bending moment, so that the pillar porcelain insulator is easy to break due to insufficient strength; (3) the natural vibration frequency of the equipment is close to the excellent frequency of earthquake motion, the equipment is easy to resonate, the damping of the equipment is small, and once the equipment is close to the resonant frequency, the power amplification coefficient is large, and the damage is more serious.
The provision of seismic isolation and reduction measures is an effective and economical way of reducing the seismic response of knob-type electrical equipment. The seismic isolation and reduction device reduces the seismic reaction of the knob insulator type electrical equipment by changing the frequency and the damping ratio of an equipment system. As a representative of dry friction damping shock absorbers, wire rope dampers (also known as "wire rope dampers") are particularly well suited for use in structural forms where the cycle is extended by the sway effect rather than by horizontal shear deformation (i.e., elongated strut-type devices). However, if the steel wire rope damper is directly applied to shock-resistant protection of knob insulator type electrical equipment, the displacement of the top of the support column type equipment is increased, and the applicability of the ultra-high voltage equipment with large height and displacement response is insufficient. And the traditional symmetrically arranged steel wire rope shock absorbers cause uneven stress of the shock insulation device under the action of working torque, can cause the inclination of a main machine, and even can cause the steel wire rope on the side with larger pressure to generate larger plastic deformation, thereby causing the overturning of electrical equipment on the shock insulation device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a steel wire rope-shape memory alloy composite shock insulation support which can avoid the inclination of a main machine caused by uneven stress.
In order to achieve the purpose, the steel wire rope-shape memory alloy composite shock insulation support comprises an upper layer plate and a lower layer plate, wherein a plurality of steel wire rope shock absorbers and a plurality of shape memory alloy wires are arranged between the upper layer plate and the lower layer plate.
And the upper plate and the lower plate are provided with connection holes for alignment.
And mounting holes for fixing the steel wire rope shock absorbers are formed in the upper plate and the lower plate.
The mounting hole is of a circular structure.
The shape memory alloy wires are divided into a plurality of pairs, wherein each pair of shape memory alloy wires are sequentially distributed along the circumferential direction, two shape memory alloy wires in each pair of shape memory alloy wires are distributed in a crossed mode, the shape memory alloy wires are connected with the lower plate through the lower fixing device, and the shape memory alloy wires are connected with the upper plate through the upper adjustable pre-strain device.
The lower fixing device comprises a base, a flange bolt and a first screw rod, the base is fixed on the lower layer plate, the first screw rod is fixed on the base, a through hole is formed in the side face of the first screw rod, and the flange bolt penetrates through the through hole and then is connected with the shape memory alloy wire.
The adjustable pre-strain device in upper portion includes foraminiferous stopper, first horizontal steel sheet, the horizontal steel sheet of second, the second screw rod, the foraminiferous bolt, two adjusting nut and two vertical steel sheets, the upper end of two vertical steel sheets is fixed in on the horizontal steel sheet of first, the lower extreme of two vertical steel sheets is fixed in on the horizontal steel sheet of second, the second screw rod passes two vertical steel sheets, the horizontal steel sheet of second is passed to the lower extreme of foraminiferous bolt, the foraminiferous stopper is fixed in the lower extreme of foraminiferous bolt, two adjusting nut cup joint on the foraminiferous bolt, two adjusting nut are located the upper and lower both sides of the horizontal steel sheet of second respectively, the upper end of shape memory alloy silk is passed first horizontal steel sheet and is connected with the foraminiferous bolt.
The utility model has the following beneficial effects:
when the steel wire rope-shape memory alloy composite shock insulation support is in specific operation, the plurality of steel wire rope shock absorbers and the plurality of shape memory alloy wires are arranged between the upper layer plate and the lower layer plate, wherein the shape memory alloy wires can generate stress to induce martensite phase transformation under the action of external load, and the stress-strain curve shows obvious hysteresis effect, so that excellent energy consumption performance can be provided.
Furthermore, the shape memory alloy wires are divided into a plurality of pairs, wherein each pair of shape memory alloy wires are distributed in sequence along the circumferential direction, and the stress is uniform.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a drawing of a steel wire rope shock absorber 4;
fig. 4 is a layout view of the wire rope damper 4;
FIG. 5 is a structural view of the lower fixing device 9;
FIG. 6 is a block diagram of the upper adjustable pre-strain device 8;
fig. 7 is a side view of the present invention.
Wherein, 1 is a lower plate, 2 is an upper plate, 31 is a first screw, 32 is a second screw, 4 is a steel wire rope shock absorber, 5 is a shape memory alloy wire, 6 is a connecting hole, 7 is a mounting hole, 8 is an upper adjustable pre-strain device, 9 is a lower fixing device, 11 is a vertical steel plate, 12 is a perforated bolt, 13 is an adjusting nut, 14 is a perforated plug, 15 is a base, and 16 is a flange bolt.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 to 7, the steel wire rope-shape memory alloy composite seismic isolation bearing of the utility model comprises an upper plate 2 and a lower plate 1, wherein a plurality of steel wire rope shock absorbers 4 and a plurality of shape memory alloy wires 5 are arranged between the upper plate 2 and the lower plate 1.
The upper layer plate 2 and the lower layer plate 1 are both provided with connection holes 6 for alignment; mounting holes 7 for fixing the steel wire rope shock absorbers 4 are formed in the upper plate 2 and the lower plate 1, and the mounting holes 7 are of circular structures.
The shape memory alloy wires 5 are divided into a plurality of pairs, wherein each pair of shape memory alloy wires 5 are sequentially distributed along the circumferential direction, two shape memory alloy wires 5 in each pair of shape memory alloy wires 5 are distributed in a crossed manner, the shape memory alloy wires 5 are connected with the lower plate 1 through a lower fixing device 9, and the shape memory alloy wires 5 are connected with the upper plate 2 through an upper adjustable pre-strain device 8.
The lower fixing device 9 comprises a base 15, a flange bolt 16 and a first screw 31, the base 15 is fixed on the lower plate 1, the first screw 3 is fixed on the base 15, a through hole is formed in the side face of the first screw 31, and the flange bolt 16 penetrates through the through hole and then is connected with the shape memory alloy wire 5.
The adjustable pre-strain device 8 in upper portion includes foraminiferous stopper 14, first horizontal steel sheet, the horizontal steel sheet of second, the second screw rod 32, foraminiferous bolt 12, two adjusting nut 13 and two vertical steel sheet 11, the upper end of two vertical steel sheet 11 is fixed in on the first horizontal steel sheet, the lower extreme of two vertical steel sheet 11 is fixed in on the horizontal steel sheet of second, the second screw rod 32 passes two vertical steel sheet 11, the horizontal steel sheet of second is passed to the lower extreme of foraminiferous bolt 12, foraminiferous stopper 14 is fixed in the lower extreme of foraminiferous bolt 12, two adjusting nut 13 cup joint on foraminiferous bolt 12, two adjusting nut 13 are located the upper and lower both sides of the horizontal steel sheet of second respectively, the upper end of shape memory alloy silk 5 is passed first horizontal steel sheet and is connected with foraminiferous bolt 12.
When the shape memory alloy wire is in work, the number of the shape memory alloy wires 5 is selected according to needs, and the strength of the shape memory alloy wires 5 is ensured, so that the shape memory alloy wires are not easy to damage in large vibration. The shape memory alloy wires 5 are arranged in a crossed mode, two groups of shape memory alloy wires 5 are arranged on each side face, and the levelness of the upper plate 2 and the lower plate 1 after the installation is guaranteed.
Specifically, when a shock occurs, the electrical equipment generates a displacement, which is transmitted to the wire rope damper 4 and the shape memory alloy wire 5 through the upper plate 2. When the movement in the vertical direction is generated, the steel wire rope shock absorber 4 is caused to displace in the vertical direction, and the shape memory alloy wire 5 mainly plays a good shock-absorbing role during stretching. When the electrical equipment meets horizontal shearing force, the horizontal displacement of the equipment is greatly reduced through the mutual matching of the steel wire rope shock absorber 4 and the shape memory alloy wire 5. Under the condition that electrical equipment produces working torque, wire rope bumper shock absorber 4 can receive the force inequality, can arouse even that the great plastic deformation takes place for the great side wire rope of pressurized, because the existence of shape memory alloy silk 5, can improve the levelness of upper plate 2, avoids equipment slope.
The above-described components and arrangements of components are only preferred embodiments of the present invention, and are not intended to limit the present invention, and all equivalent changes and modifications, or all related ideas and arrangements of the present invention are included in the scope of the present invention.
Claims (6)
1. A steel wire rope-shape memory alloy composite shock insulation support is characterized by comprising an upper plate (2) and a lower plate (1), wherein a plurality of steel wire rope shock absorbers (4) and a plurality of shape memory alloy wires (5) are arranged between the upper plate (2) and the lower plate (1);
the shape memory alloy wires (5) are divided into a plurality of pairs, wherein each pair of shape memory alloy wires (5) are sequentially distributed along the circumferential direction, two shape memory alloy wires (5) in each pair of shape memory alloy wires (5) are distributed in a crossed manner, the shape memory alloy wires (5) are connected with the lower layer plate (1) through a lower fixing device (9), and the shape memory alloy wires (5) are connected with the upper layer plate (2) through an upper adjustable pre-strain device (8).
2. The steel wire rope-shape memory alloy composite seismic isolation bearing as claimed in claim 1, wherein the upper plate (2) and the lower plate (1) are provided with connection holes (6) for alignment.
3. The steel wire rope-shape memory alloy composite seismic isolation bearing as claimed in claim 1, wherein the upper plate (2) and the lower plate (1) are provided with mounting holes (7) for fixing the steel wire rope shock absorbers (4).
4. The steel wire rope-shape memory alloy composite seismic isolation bearing according to claim 3, wherein the mounting hole (7) is of a circular structure.
5. The steel wire rope-shape memory alloy composite seismic isolation bearing according to claim 1, wherein the lower fixing device (9) comprises a base (15), a flange bolt (16) and a first screw (31), the base (15) is fixed on the lower plate (1), the first screw (31) is fixed on the base (15), a through hole is formed in the side face of the first screw (31), and the flange bolt (16) penetrates through the through hole and then is connected with the shape memory alloy wire (5).
6. The steel wire rope-shape memory alloy composite seismic isolation bearing according to claim 5, wherein the upper adjustable pre-strain device (8) comprises a perforated plug (14), a first transverse steel plate, a second screw (32), a perforated bolt (12), two adjusting nuts (13) and two vertical steel plates (11), the upper ends of the two vertical steel plates (11) are fixed on the first transverse steel plate, the lower ends of the two vertical steel plates (11) are fixed on the second transverse steel plate, the second screw (32) penetrates through the two vertical steel plates (11), the lower end of the perforated bolt (12) penetrates through the second transverse steel plate, the perforated plug (14) is fixed on the lower end of the perforated bolt (12), the two adjusting nuts (13) are sleeved on the perforated bolt (12), and the two adjusting nuts (13) are respectively positioned on the upper side and the lower side of the second transverse steel plate, the upper end of the shape memory alloy wire (5) passes through the first transverse steel plate and is connected with the bolt with the hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023333330.2U CN215335215U (en) | 2020-12-30 | 2020-12-30 | Steel wire rope-shape memory alloy composite shock insulation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023333330.2U CN215335215U (en) | 2020-12-30 | 2020-12-30 | Steel wire rope-shape memory alloy composite shock insulation support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215335215U true CN215335215U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202023333330.2U Active CN215335215U (en) | 2020-12-30 | 2020-12-30 | Steel wire rope-shape memory alloy composite shock insulation support |
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|---|---|
| CN (1) | CN215335215U (en) |
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- 2020-12-30 CN CN202023333330.2U patent/CN215335215U/en active Active
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