CN111834969B - Floating shock absorber with rigidity - Google Patents
Floating shock absorber with rigidity Download PDFInfo
- Publication number
- CN111834969B CN111834969B CN202010727602.2A CN202010727602A CN111834969B CN 111834969 B CN111834969 B CN 111834969B CN 202010727602 A CN202010727602 A CN 202010727602A CN 111834969 B CN111834969 B CN 111834969B
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- mounting plate
- cylinder body
- piston rod
- sealing
- fixedly connected
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
Abstract
The invention discloses a floating shock absorber with rigidity, which comprises a rigidity device and two stabilizing devices, wherein the rigidity device comprises a connecting rod, the connecting rod is horizontally arranged, the two stabilizing devices correspond to two ends of the connecting rod one by one, the stabilizing devices are arranged at the end parts of the corresponding connecting rods, and each stabilizing device comprises an upper mounting plate, a lower mounting plate and at least two damping devices. The invention has the advantages that the self-vibration frequency of the damper is adjusted through the rigidity device, so that the movement of the mass unit and the controlled structure generates displacement and speed difference, nonlinear energy consumption is carried out through the damping device, the electric wires are restrained by utilizing the plurality of spacing rods, the electric wires are prevented from mutually attracting and colliding, the vibration of the wire harness is eliminated and reduced, and the wire harness is prevented from swinging up and down. And the torsional rigidity of the split power transmission line is improved by utilizing the two stabilizing devices, the vertical motion is controlled, meanwhile, the energy consumption is carried out on the torsional motion of the power line, and the safety of the power transmission line is protected to a greater extent.
Description
Technical Field
The invention relates to a shock absorber, in particular to a floating shock absorber with rigidity.
Background
In the process of overhead ultrahigh voltage transmission, compared with single guide, the split guide can reduce the inductance of a transmission line, increase the capacitance, reduce the wave impedance of the transmission line to alternating current and improve the transmission capacity of the line, in order to ensure that the distance between split electric wire harnesses is kept unchanged to meet the electrical performance, reduce the surface potential gradient, and under the condition of short circuit, the guide wire harnesses cannot generate electromagnetic force to cause mutual attraction collision or cause instant attraction collision, but can recover to a normal state after the accident is eliminated, a spacing rod and a pendulum bob are required to be arranged in the span at a certain distance, the spacing rod can eliminate and reduce the vibration of the wire harnesses and prevent the wire harnesses from swinging up and down, because the split electric wire swinging is usually accompanied with twisting motion at the same time, and the twisting motion is important for swinging excitation, but only the spacing rod is arranged, the inhibition capacity to other swinging directions such as the transverse direction and the twisting direction of the overhead electric wire is poor, in the process of swinging of the pendulum bob, although the wire is restrained from largely swinging, the amplitude is large, and the vibration eliminating effect is poor.
Disclosure of Invention
In view of this, the invention provides a floating type shock absorber with stiffness, which is beneficial to reducing the vibration of a wire harness and enhancing the suppression capability of the shock absorber on all directions of an electric wire.
The technical scheme is as follows:
a floating type shock absorber with rigidity is characterized by comprising a rigidity device and two stabilizing devices, wherein the rigidity device comprises a connecting rod, the connecting rod is horizontally arranged, the two stabilizing devices correspond to two ends of the connecting rod one by one, and the stabilizing devices are arranged at the end parts of the corresponding connecting rods;
the stabilizing device comprises an upper mounting plate, a lower mounting plate and at least two damping devices, wherein the lower mounting plate is positioned under the upper mounting plate, the damping devices are positioned between the upper mounting plate and the lower mounting plate, the upper part of each damping device is fixedly connected with the lower surface of the upper mounting plate, and the lower part of each damping device is fixedly connected with the upper surface of the lower mounting plate.
The effect of adopting above scheme: the rigidity device is used for protecting the wires from mutual attraction, up-and-down waving and the like, the stability devices are arranged to enhance the inhibition capability of the wires in the transverse direction and the twisting direction or other waving directions, when the wires are twisted by external force, the two stability devices perform adaptive floating adjustment, and the stability of the wires and the vibration absorption effect of the pendulum bob are improved.
The damping device comprises a fixing head, a cylinder body and a sealing seat which are sequentially arranged from top to bottom, the fixing head is fixed on the lower surface of the upper mounting plate, and the sealing seat is fixed on the upper surface of the lower mounting plate;
the cylinder body is cylindrical with openings at two ends, the cylinder body is vertically arranged, a piston rod is movably inserted in the cylinder body, two ends of the piston rod extend out of the cylinder body, the lower end of the cylinder body is fixedly connected with the sealing seat, the lower end of the piston rod extends into the sealing seat, and the upper end of the piston rod is fixedly connected with the fixing head;
the middle part of the piston rod is also fixedly sleeved with a flow-limiting ring, and the radius of the flow-limiting ring is smaller than that of the inner ring of the cylinder body;
two sealing pieces are fixedly arranged in the cylinder body and are respectively close to two ends of the cylinder body;
the two sealing pieces correspond to the two ends of the piston rod one by one, and the two ends of the piston rod respectively movably penetrate through the corresponding sealing pieces.
The sealing element comprises a guide circular tube and a sealing ring, wherein two ends of the guide circular tube are respectively provided with a limiting circular ring, the edge of the end part of the guide circular tube is respectively and fixedly connected with the edge of an inner ring corresponding to the limiting circular ring, the axial lead of the limiting circular ring is parallel to the axial lead of the guide circular tube, the sealing ring is in a circular ring shape, the sealing ring is sleeved on the guide circular tube, two ends of the sealing ring are respectively abutted against the corresponding limiting circular rings, and the outer wall of the sealing ring is abutted against and sealed with the inner wall of the cylinder body;
the piston rod movably penetrates through the corresponding guide circular tube, and the piston rod and the guide circular tube are sealed.
The upper end of the cylinder body is also provided with a front end cover, the front end cover comprises a cover plate and an upper connecting cylinder, the upper connecting cylinder is vertically arranged, the edge of the outer ring of the cover plate is fixedly connected with the edge of the upper end of the upper connecting cylinder, an upper connecting hole penetrates through the center of the cover plate, the upper end of the piston rod penetrates out of the upper connecting hole, and the aperture of the upper connecting hole is the same as the rod diameter of the piston rod;
the inner wall of going up the connecting cylinder is equipped with the screw thread, the upper end outer wall of cylinder body is equipped with the screw thread, go up the connecting cylinder with cylinder body threaded connection.
The sealing seat is a hollow cylinder which is vertically arranged, the lower end face of the sealing seat is fixedly connected with the upper surface of the lower mounting plate, the upper end face of the sealing seat is also provided with a lower connecting cylinder which is vertically arranged, the lower edge of the lower connecting cylinder is fixedly connected with the upper end face of the sealing seat, the upper end face of the sealing seat is provided with a lower connecting hole, the lower connecting hole is communicated with the inner cavity of the sealing seat, the lower end of the piston rod extends into the inner cavity of the sealing seat from the lower connecting hole, and the lower end of the cylinder body is abutted against the upper end face of the sealing seat;
the diameter of the lower connecting hole is the same as the rod diameter of the piston rod, the inner wall of the lower connecting cylinder is provided with threads, the outer wall of the lower end of the cylinder body is provided with threads, and the lower connecting cylinder is in threaded connection with the cylinder body.
A balancing weight and a spring are further arranged between the lower mounting plate and the upper mounting plate, the balancing weight is mounted on the lower mounting plate, the spring is located right above the balancing weight, one end of the spring is fixedly connected with the upper portion of the balancing weight, and the other end of the spring is fixedly connected with the lower surface of the upper mounting plate;
all the damping devices are uniformly arranged around the balancing weight.
The upper surface of the upper mounting plate is also provided with lifting lugs, and the lifting lugs are fixedly connected with the end parts of the corresponding connecting rods through bolts.
The rigidity device further comprises an installation seat and at least two spacing rods, the spacing rods are distributed in a divergent mode by taking the installation seat as a center, and the spacing rods are fixedly installed on the installation seat at equal intervals.
Shear thickening liquid is filled in the cylinder body and is nonlinear viscosity liquid
Has the advantages that: the self-vibration frequency of the damper is adjusted through the rigidity device, so that the movement of the mass unit and the controlled structure generates displacement and speed difference, nonlinear energy consumption is performed through the damping device, the electric wires are restrained by the plurality of spacing rods, the electric wires are prevented from mutually attracting and colliding, and the vibration of the wire harness is eliminated and reduced, and the wire harness is prevented from swinging up and down. The torsional rigidity of the split power transmission line is improved by utilizing the two stabilizing devices, the torsional movement of the power line is consumed while the vertical movement is controlled, the single-degree-of-freedom vibration of the power transmission line is restrained, the galloping restraining effect on the galloping under the coupling effect of three degrees of freedom is good, and the safety of the power transmission line is protected to a greater extent.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the stabilizer 2;
FIG. 3 is a schematic cross-sectional view of FIG. 2;
fig. 4 is a schematic cross-sectional view of the seal 5.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1 to 4, a floating shock absorber with stiffness mainly comprises a stiffness device and two stabilizers 2, wherein the stiffness device comprises a mounting seat 1b, a connecting rod 3 and four spacers 1c, all the spacers 1c are distributed in a divergent manner with the mounting seat 1b as the center, all the spacers 1c are fixedly mounted on the mounting seat 1b at equal intervals, the connecting rod 3 is horizontally arranged, the center of the connecting rod 3 is fixed on the mounting seat 1b, two stabilizers 2 are in one-to-one correspondence with two ends of the connecting rod 3, and the stabilizers 2 are mounted at the corresponding ends of the connecting rod 3;
stabilising arrangement 2 includes mounting panel 2a, lower mounting panel 2b and two at least damping device, lower mounting panel 2b is located under last mounting panel 2a, damping device is located go up mounting panel 2a with down between mounting panel 2b, damping device's upper portion with go up mounting panel 2 a's lower fixed surface connection, damping device's lower part with mounting panel 2 b's last fixed surface connection down.
Wherein:
the damping device comprises a fixed head 4a, a cylinder body 4b and a sealing seat 4c which are sequentially arranged from top to bottom, wherein the fixed head 4a is fixed on the lower surface of the upper mounting plate 2a, and the sealing seat 4c is fixed on the upper surface of the lower mounting plate 2 b;
the cylinder body 4b is cylindrical with openings at two ends, the cylinder body 4b is vertically arranged, a piston rod 4d is movably inserted in the cylinder body 4b, two ends of the piston rod 4d extend out of the cylinder body 4b, the lower end of the cylinder body 4b is fixedly connected with the sealing seat 4c, the lower end of the piston rod 4d extends into the sealing seat 4c, and the upper end of the piston rod 4d is fixedly connected with the fixing head 4 a;
the middle part of the piston rod 4d is also fixedly sleeved with a flow-limiting ring, and the radius of the flow-limiting ring is smaller than that of the inner ring of the cylinder body 4 b;
two sealing pieces 5 are also fixedly arranged in the cylinder body 4b, and the two sealing pieces 5 are respectively close to two ends of the cylinder body 4 b;
the two sealing elements 5 correspond to two ends of the piston rod 4d one by one, and two ends of the piston rod 4d respectively movably penetrate through the corresponding sealing elements 5.
The sealing element 5 comprises a guide circular tube 5a and a sealing ring 5b, wherein two ends of the guide circular tube 5a are respectively provided with a limiting ring 5c, the end edge of the guide circular tube 5a is respectively fixedly connected with the edge of an inner ring corresponding to the limiting ring 5c, the axial lead of the limiting ring 5c is parallel to the axial lead of the guide circular tube 5a, the sealing ring 5b is in a circular ring shape, the sealing ring 5b is sleeved on the guide circular tube 5a, two ends of the sealing ring 5b are respectively tightly abutted with the corresponding limiting rings 5c, and the outer wall of the sealing ring 5b is tightly abutted with and sealed with the inner wall of the cylinder body 4 b;
the piston rod 4d movably penetrates through the corresponding guide circular tube 5a, and the piston rod 4d and the guide circular tube 5a are sealed.
The upper end of the cylinder body 4b is also provided with a front end cover, the front end cover comprises a cover plate 6 and an upper connecting cylinder 7, the upper connecting cylinder 7 is vertically arranged, the edge of the outer ring of the cover plate 6 is fixedly connected with the edge of the upper end of the upper connecting cylinder 7, an upper connecting hole penetrates through the center of the cover plate 6, the upper end of the piston rod 4d penetrates out of the upper connecting hole, and the aperture of the upper connecting hole is the same as the rod diameter of the piston rod 4 d;
the inner wall of the upper connecting cylinder 7 is provided with threads, the outer wall of the upper end of the cylinder body 4b is provided with threads, and the upper connecting cylinder 7 is in threaded connection with the cylinder body 4 b.
The sealing seat 4c is a hollow cylinder which is vertically arranged, the lower end face of the sealing seat 4c is fixedly connected with the upper surface of the lower mounting plate 2b, the upper end face of the sealing seat 4c is also provided with a lower connecting cylinder 8, the lower connecting cylinder 8 is vertically arranged, the lower edge of the lower connecting cylinder is fixedly connected with the upper end face of the sealing seat 4c, the upper end face of the sealing seat 4c is provided with a lower connecting hole, the lower connecting hole is communicated with the inner cavity of the sealing seat 4c, the lower end of the piston rod 4d extends into the inner cavity of the sealing seat 4c from the lower connecting hole, and the lower end of the cylinder body 4b is tightly abutted against the upper end face of the sealing seat 4 c;
the aperture of the lower connecting hole is the same as the rod diameter of the piston rod 4d, the inner wall of the lower connecting cylinder 8 is provided with threads, the outer wall of the lower end of the cylinder body 4b is provided with threads, and the lower connecting cylinder 8 is in threaded connection with the cylinder body 4 b.
A balancing weight 9 and a spring 10 are further arranged between the lower mounting plate 2b and the upper mounting plate 2a, the balancing weight 9 is mounted on the lower mounting plate 2b, the spring 10 is positioned right above the balancing weight 9, one end of the spring 10 is fixedly connected with the upper part of the balancing weight 9, and the other end of the spring 10 is fixedly connected with the lower surface of the upper mounting plate 2 a;
all the damping devices are uniformly arranged around the counterweight 9.
The cylinder 4b is also filled with shear thickening liquid, and the shear thickening liquid is a high-concentration particle suspension of nanometer and micron, under the appropriate shearing condition, the viscosity of the shear thickening liquid can be obviously increased along with the increase of the shearing rate, generally, the viscosity can be increased by several orders of magnitude, the response speed is high, the process is reversible, and the fluid can be restored to the initial state when the stress is removed;
the shearing stress and the shearing speed are not in a linear relation, energy is consumed in the form of heat energy through the shearing movement of the shearing thickening liquid, and the energy dissipation effect is improved.
When the damper is used, the self-vibration frequency of the damper is adjusted through the spacer 1c, the damping device can provide corresponding damping force according to the frequency amplitude of the vibration of the electric wire, the piston rod 4d can continuously move up and down in the cylinder body 4b along with the vibration of the electric wire in the vibration process of the damping device, the piston rod 4d is subjected to the resistance of shearing and thickening liquid in the cylinder body in the up-and-down sliding process and continuously dissipates energy to the piston rod 4d to enable the piston rod 4d to be stable as soon as possible, the piston rod 4d can also continuously extrude and extract air in the sealing seat 4c in the up-and-down moving process and ensure the piston rod 4d to reset under the reaction force of the air in the extruding and extracting process, and compared with the existing anti-galloping device, the frequency for generating the maximum amplitude can be reduced, and the nonlinear active.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a take floating shock absorber of rigidity which characterized in that: the device comprises a rigidity device and two stabilizing devices (2), wherein the rigidity device comprises a connecting rod (3), the connecting rod (3) is horizontally arranged, the two stabilizing devices (2) correspond to two ends of the connecting rod (3) one by one, and the stabilizing devices (2) are arranged at the end parts of the corresponding connecting rods (3);
the stabilizing device (2) comprises an upper mounting plate (2a), a lower mounting plate (2b) and at least two damping devices, the lower mounting plate (2b) is positioned under the upper mounting plate (2a), the damping devices are positioned between the upper mounting plate (2a) and the lower mounting plate (2b), the upper parts of the damping devices are fixedly connected with the lower surface of the upper mounting plate (2a), and the lower parts of the damping devices are fixedly connected with the upper surface of the lower mounting plate (2 b);
the damping device comprises a fixing head (4a), a cylinder body (4b) and a sealing seat (4c), which are sequentially arranged from top to bottom, wherein the fixing head (4a) is fixed on the lower surface of the upper mounting plate (2a), and the sealing seat (4c) is fixed on the upper surface of the lower mounting plate (2 b);
the cylinder body (4b) is cylindrical with openings at two ends, the cylinder body (4b) is vertically arranged, a piston rod (4d) is movably inserted in the cylinder body (4b), two ends of the piston rod (4d) extend out of the cylinder body (4b), the lower end of the cylinder body (4b) is fixedly connected with the sealing seat (4c), the lower end of the piston rod (4d) extends into the sealing seat (4c), and the upper end of the piston rod (4d) is fixedly connected with the fixing head (4 a);
the middle part of the piston rod (4d) is also fixedly sleeved with a flow limiting ring, and the radius of the flow limiting ring is smaller than that of the inner ring of the cylinder body (4 b);
two sealing pieces (5) are further fixedly arranged in the cylinder body (4b), and the two sealing pieces (5) are respectively close to two ends of the cylinder body (4 b);
the two sealing pieces (5) correspond to the two ends of the piston rod (4d) one by one, and the two ends of the piston rod (4d) respectively movably penetrate through the corresponding sealing pieces (5).
2. A rigid floating shock absorber according to claim 1 wherein: the sealing element (5) comprises a guide circular tube (5a) and a sealing ring (5b), two ends of the guide circular tube (5a) are respectively provided with a limiting circular ring (5c), the end edge of the guide circular tube (5a) is respectively fixedly connected with the edge of an inner ring corresponding to the limiting circular ring (5c), the axial lead of the limiting circular ring (5c) is parallel to the axial lead of the guide circular tube (5a), the sealing ring (5b) is in a circular ring shape, the sealing ring (5b) is sleeved on the guide circular tube (5a), two ends of the sealing ring (5b) are respectively abutted against the corresponding limiting circular ring (5c), and the outer wall of the sealing ring (5b) is abutted against and sealed with the inner wall of the cylinder body (4 b);
the piston rod (4d) movably penetrates through the corresponding guide circular tube (5a), and the piston rod (4d) and the guide circular tube (5a) are sealed.
3. A rigid floating shock absorber according to claim 2, wherein: the upper end of the cylinder body (4b) is further provided with a front end cover, the front end cover comprises a cover plate (6) and an upper connecting cylinder (7), the upper connecting cylinder (7) is vertically arranged, the edge of the outer ring of the cover plate (6) is fixedly connected with the edge of the upper end of the upper connecting cylinder (7), an upper connecting hole penetrates through the center of the cover plate (6), the upper end of the piston rod (4d) penetrates out of the upper connecting hole, and the aperture of the upper connecting hole is the same as the rod diameter of the piston rod (4 d);
the inner wall of the upper connecting cylinder (7) is provided with threads, the outer wall of the upper end of the cylinder body (4b) is provided with threads, and the upper connecting cylinder (7) is in threaded connection with the cylinder body (4 b).
4. A rigid floating shock absorber according to claim 3, wherein: the sealing seat (4c) is a vertically arranged hollow cylinder, the lower end face of the sealing seat (4c) is fixedly connected with the upper surface of the lower mounting plate (2b), the upper end face of the sealing seat (4c) is also provided with a lower connecting cylinder (8), the lower connecting cylinder (8) is vertically arranged, the lower edge of the lower connecting cylinder is fixedly connected with the upper end face of the sealing seat (4c), the upper end face of the sealing seat (4c) is provided with a lower connecting hole, the lower connecting hole is communicated with the inner cavity of the sealing seat (4c), the lower end of the piston rod (4d) extends into the inner cavity of the sealing seat (4c) from the lower connecting hole, and the lower end of the cylinder body (4b) is tightly abutted to the upper end face of the sealing seat (4 c);
the aperture of the lower connecting hole is the same as the rod diameter of the piston rod (4d), the inner wall of the lower connecting cylinder (8) is provided with threads, the outer wall of the lower end of the cylinder body (4b) is provided with threads, and the lower connecting cylinder (8) is in threaded connection with the cylinder body (4 b).
5. A rigid floating shock absorber according to claim 4, wherein: a balancing weight (9) and a spring (10) are further arranged between the lower mounting plate (2b) and the upper mounting plate (2a), the balancing weight (9) is mounted on the lower mounting plate (2b), the spring (10) is located right above the balancing weight (9), one end of the spring (10) is fixedly connected with the upper portion of the balancing weight (9), and the other end of the spring (10) is fixedly connected with the lower surface of the upper mounting plate (2 a);
all the damping devices are uniformly arranged around the balancing weight (9).
6. A rigid floating shock absorber according to claim 5, wherein: lifting lugs (2c) are further arranged on the upper surface of the upper mounting plate (2a), and the lifting lugs (2c) are fixedly connected with the end portions of the corresponding connecting rods (3) through bolts.
7. A rigid floating shock absorber according to claim 6, wherein: the rigidity device further comprises an installation seat (1b) and at least two spacing rods (1c), all the spacing rods (1c) are distributed in a divergent mode by taking the installation seat (1b) as a center, and all the spacing rods (1c) are fixedly installed on the installation seat (1b) at equal intervals.
8. A rigid floating shock absorber according to claim 7 wherein: the cylinder body (4b) is also filled with shear thickening liquid, and the shear thickening liquid is nonlinear viscosity liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010727602.2A CN111834969B (en) | 2020-07-22 | 2020-07-22 | Floating shock absorber with rigidity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010727602.2A CN111834969B (en) | 2020-07-22 | 2020-07-22 | Floating shock absorber with rigidity |
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| CN111834969A CN111834969A (en) | 2020-10-27 |
| CN111834969B true CN111834969B (en) | 2021-07-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113394733B (en) * | 2021-06-24 | 2023-03-28 | 重庆科技学院 | Self-adaptive damping spacer |
| CN113507080A (en) * | 2021-07-16 | 2021-10-15 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Weight type damping anti-galloping spacer |
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| CN208674830U (en) * | 2018-09-21 | 2019-03-29 | 三峡大学 | A kind of big damping Anti-galloping device |
| KR102068350B1 (en) * | 2019-07-05 | 2020-01-20 | 주식회사 두원코리아 | Shock absorber device with uniform velocity structure |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4159393A (en) * | 1976-07-09 | 1979-06-26 | Dulmison Australia Pty Ltd | Vibration damper |
| CN101251163A (en) * | 2008-03-27 | 2008-08-27 | 中国科学技术大学 | Opposition resistance damper for shear thickening liquid |
| CN202145556U (en) * | 2011-02-09 | 2012-02-15 | 云南电网公司 | Apparatus for preventing power transmission lines from swinging |
| CN202883875U (en) * | 2012-08-22 | 2013-04-17 | 浙江师范大学 | Piezoelectric hydraulic energy recovery damper |
| CN105821983A (en) * | 2016-04-01 | 2016-08-03 | 东南大学 | Multidimensional vibration/shock-absorbing tuned mass damper |
| CN207213025U (en) * | 2017-08-24 | 2018-04-10 | 重庆巨九磊汽车零部件制造有限公司 | A kind of one-armed doubly-linked plate damper |
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| KR102068350B1 (en) * | 2019-07-05 | 2020-01-20 | 주식회사 두원코리아 | Shock absorber device with uniform velocity structure |
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| CN111834969A (en) | 2020-10-27 |
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