CN216430363U - Viscous damper with elliptical cylinder body - Google Patents
Viscous damper with elliptical cylinder body Download PDFInfo
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- CN216430363U CN216430363U CN202123319949.2U CN202123319949U CN216430363U CN 216430363 U CN216430363 U CN 216430363U CN 202123319949 U CN202123319949 U CN 202123319949U CN 216430363 U CN216430363 U CN 216430363U
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Abstract
The utility model discloses an elliptical cylinder viscous damper, which comprises an auxiliary cylinder, a main cylinder, a piston and a piston rod; the damping device comprises a main cylinder, a secondary cylinder, a damping medium, a piston rod, a first hinge lug, a second hinge lug, a piston rod and at least two damping holes, wherein the first hinge lug is installed at one end of the secondary cylinder, the other end of the secondary cylinder is fixedly connected with one end of the main cylinder, the damping medium is filled in a cavity of the main cylinder, the piston rod which consumes energy under the action of the damping medium is installed in the main cylinder, one end of the piston rod penetrates through the main cylinder and is connected with the second hinge lug, the other end of the piston rod penetrates through the main cylinder and is contained in the cavity of the secondary cylinder, the piston rod is provided with a piston which divides the main cylinder into two cavities, and the piston is provided with at least two damping holes. The utility model discloses simple structure, the leakproofness is good, and heat dispersion is better, and the power consumption ability is bigger than traditional attenuator, under the limited condition in space, can make full use of space to great specification is arranged in the structure, produces bigger damping force.
Description
Technical Field
The utility model belongs to the technical field of viscous damper, concretely relates to oval cylinder body viscous damper.
Background
Compared with the traditional structural seismic resistance method, which resists the seismic action by strengthening the seismic performance of the structure, the energy-consuming and shock-absorbing technology is proved to be an effective structural control method as a branch of passive control, and the energy-consuming device is used for generating deformation or displacement to consume or absorb the energy input into the structure to reduce the seismic reaction of the structure, so that the method has the advantages of safety, economy and the like.
The viscous damper is a speed type damper and can be applied to energy dissipation and shock absorption design and reinforcement transformation of a structure, and the control mechanism mainly consumes part of vibration energy of the structure in a heat mode through the viscous effect of a damping medium, so that the vibration and deformation of the structure are reduced, and the purpose of protecting the structure and components is achieved. At present, cylinder-cylinder viscous dampers mainly used in China mainly use a circular cylinder body as a main object, the inner wall of the cylinder body and a piston are mainly used as a reconstruction object, and the problems of difficult processing and manufacturing, high manufacturing cost and the like exist in a complex inner wall structure of the cylinder body and a complex inner structure of the piston. Conventional viscous dampers often meet engineering design requirements for large tonnage, but are limited when certain special conditions are met, such as limited width or height, and the performance is greatly compromised. As shown in fig. 3 and 4, sometimes the section of the conventional damper exceeds the filling wall range of the space due to the parameter requirements such as damping force, thereby affecting the indoor space, and in addition, in the herringbone arrangement, the damper may even affect the suspended ceiling of the building.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem among the prior art, the utility model provides a viscous damper has solved current attenuator structural style more singlely, and cylinder formula attenuator uses circular cylinder body as the main basically, to under the limited condition of wide height, hardly arranges great specification's high power consumption attenuator, can't satisfy the engineering to the problem of the designing requirement of large tonnage.
In order to achieve the above object, the utility model adopts the following technical scheme:
the viscous damper with the elliptic cylinder body comprises an auxiliary cylinder, a main cylinder, a piston and a piston rod; the first hinge lug is installed at one end of the auxiliary cylinder, the other end of the auxiliary cylinder is fixedly connected with one end of the main cylinder, damping media are filled in a cavity of the main cylinder, a piston rod which consumes energy under the action of the damping media is installed in the main cylinder, one end of the piston rod penetrates through the main cylinder and is connected with the second hinge lug, the other end of the piston rod penetrates through the main cylinder and is contained in the cavity of the auxiliary cylinder, a piston which divides the main cylinder into two cavities is arranged on the piston rod, and at least two damping holes are formed in the piston.
When the damper is excited externally, the external excitation is transmitted into the piston rod, and the piston rod is subjected to pressure or tension, so that the piston is driven to move in the main cylinder body, energy consumption is realized through friction between the piston and a damping medium, further conversion of kinetic energy to internal energy is realized, energy is discharged to the outside through the cylinder body, and energy consumption is realized.
The damper is elliptical in shape, and can be flexibly arranged and structured under the condition of limited space, so that the design requirements of engineering are met.
Furthermore, the auxiliary cylinder, the main cylinder and the piston are elliptical, so that the space can be fully utilized and the working performance is more stable under the condition that the width and the height are limited and a damper with a larger specification cannot be arranged.
Furthermore, two damping holes are formed in the piston and are distributed in an axisymmetric mode by taking the piston rod as the piston rod, so that the friction energy consumption efficiency of the damping medium and the piston in the motion of the piston rod is improved, and the conversion of kinetic energy to internal energy is realized more quickly.
Further, the first hinge lug and the second hinge lug can rotate by 90 degrees and are fixed through the clamp, and therefore the elliptical cylinder viscous damper is arranged and structured according to requirements.
Furthermore, metal guide rails for stabilizing the movement of the piston rod are installed at two ends of the main cylinder, and the metal guide rails are used for improving the movement stability of the piston rod.
Furthermore, the inner wall of the metal guide rail is attached with a flexible part, the flexible part is made of polytetrafluoroethylene, and the polytetrafluoroethylene has the characteristics of wear resistance and extremely low friction coefficient, so that the friction between the inner wall of the steel rail and the piston rod can be reduced, and the service life of the piston rod is prolonged.
Furthermore, the length of the piston rod is greater than that of the main cylinder and less than the total length of the auxiliary cylinder and the main cylinder, so that the piston rod has sufficient distance in the cavity of the auxiliary cylinder, and sufficient movement space and certain protection are provided for the piston rod.
Furthermore, sealing elements are installed at two ends of the inner wall of the main cylinder, and the sealing elements are made of polyurethane sealing paste, so that the damping medium can be prevented from leaking from the port.
Furthermore, a damping medium is filled in the cavity of the main cylinder, the damping medium is the dimethyl silicon oil, the piston rod moves, the kinetic energy is converted into the internal energy due to the friction energy consumption of the piston and the damping medium, the temperature is increased, the viscosity-temperature performance of the dimethyl silicon oil is good, and the friction energy consumption efficiency of the piston and the damping medium is prevented from being reduced.
The utility model discloses a viscous damper, its beneficial effect is:
the utility model adopts the structure of the oval cylinder body and the piston, under the condition that the width and the height in the building and the bridge are limited and the damper with larger specification can not be arranged, the damper can fully utilize the space and be arranged in the structure with larger specification, and generates larger damping force; adopt oval cylinder body, the contact surface with the outside air is bigger, can dissipate the heat that the conversion comes to the air in more fast, and working property is more stable.
Drawings
Fig. 1 is a schematic view of a viscous damper.
Fig. 2 is a three-dimensional external view of a viscous damper.
Fig. 3 is a three-dimensional view of a wall type arrangement of a conventional viscous damper.
Fig. 4 is a side sectional view of a wall type arrangement of a conventional viscous damper.
Fig. 5 is a three-dimensional view of a man-made arrangement of a conventional viscous damper.
Fig. 6 is a cross-sectional side view of a man-made arrangement of a conventional viscous damper.
Fig. 7 is a wall layout of a viscous damper.
Fig. 8 is a human layout view of a viscous damper.
Wherein, 1, a first hinge lug; 2. a staple bolt; 3. a secondary cylinder; 4. a master cylinder; 5. a seal member; 6. a piston; 7. a flexible member; 8. a damping medium; 9. a damping hole; 10. a second hinge lug; 11. a metal guide rail; 12. a piston rod.
Detailed Description
The description of the embodiments of the invention is given for the sake of clarity and understanding by those skilled in the art, and it is to be understood that the invention is not limited to the details of the embodiments, but rather, to those skilled in the art, it is intended that all changes and modifications within the spirit and scope of the invention be embraced by the appended claims.
According to the first embodiment of the present application, referring to fig. 1, the elliptical cylinder viscous damper of the present embodiment includes: secondary cylinder 3, primary cylinder 4, piston rod 12 and damping medium 8.
A first hinge lug 1 is installed at one end of the auxiliary cylinder 3 and is used for being connected with an external hinge base, and the other end of the auxiliary cylinder 3 is fixedly connected with one end of the main cylinder 4.
The cavity of the main cylinder 4 is filled with damping medium 8, and the piston rod 12 is installed in the main cylinder 4, and the piston rod 12 rubs with the damping medium to consume energy when moving, so that energy conversion is completed.
One end of a piston rod 12 penetrates through the main cylinder 4 and is connected with a second hinge lug 10, the second hinge lug 10 is used for being connected with an external hinge base and is fixed on a structure, and the other end of the piston rod 12 penetrates through the main cylinder 4 and is contained in the cavity of the auxiliary cylinder 3.
The piston rod 12 is provided with a piston 6 which divides the main cylinder into two cavities, the piston 6 is provided with at least one damping hole 9, when the piston rod 12 moves, the piston 6 is driven to press the damping medium 8 on one side, the damping medium 8 flows to the cavity on the other side through the damping hole 9, and energy is dissipated through friction and pores between the damping hole 9 and the damping medium 8, so that energy conversion is realized.
When the viscous damper of the elliptical cylinder body is excited externally and the external excitation is transmitted to the piston rod 12, the piston rod 12 is subjected to pressure or pulling force, so that the piston 6 is driven to move in the cavity of the main cylinder 4, energy consumption and pore energy consumption are realized through friction between the piston 6 and the damping medium 8 in the movement process, the conversion of kinetic energy into internal energy is realized, and finally, heat is discharged to the outside through the cylinder body, and the energy consumption is completed.
Specifically, vice jar 3 and master cylinder 4 are oval with piston 6 to the adaptation is under the limited condition of width height, the utility model discloses can all make full use of space, arrange in the structure with great specification.
Two damping holes 9 are formed in the piston 6, the two damping holes 9 are symmetrically formed in the piston 6 by taking the piston rod 12 as an axis, when the piston rod 12 moves, the damping medium 8 flows through the two damping holes 9, and kinetic energy conversion into internal energy is realized more quickly through friction energy consumption and pore energy consumption of the damping holes 9 and the damping medium 8.
The first hinge lug 1 connected with the auxiliary cylinder 3 and the second hinge lug 10 connected with the piston rod 12 can rotate by 90 degrees and are locked by the clamp nail 2 after the rotation, so that the device can be better arranged in a structure under the condition of limited space.
The metal guide rails 11 for stabilizing the movement of the piston rod 12 are installed at two ends of the main cylinder 4, the piston rod 12 penetrates through the metal guide rails 11 at two ends of the main cylinder 4, and the metal guide rails 11 improve the movement stability of the piston rod 12.
11 inner walls of metal guide rail are attached with flexible 7, and the material of flexible 7 is polytetrafluoroethylene, and polytetrafluoroethylene has wear-resisting and friction coefficient extremely low characteristics, can reduce the friction of piston rod 12 and 11 inner walls of metal guide rail, can also effectually prevent that outside foreign particles from passing through in piston rod 12 gets into master cylinder 4.
The length of the piston rod 12 is longer than that of the main cylinder 4, the length of the piston rod 12 is shorter than the total length of the auxiliary cylinder 3 and the main cylinder 4, one end of the piston rod 12 extending into the cavity of the auxiliary cylinder 3 is far away from the auxiliary cylinder 3, and sufficient space and certain protection are left for the movement of the piston rod 12.
The damping medium 8 adopts dimethyl silicon oil with better viscosity-temperature performance, and the temperature rises after the piston rod 12 moves, so that the friction energy consumption efficiency of the piston 6 and the damping medium 8 is prevented from being reduced.
The working principle of the viscous damper of the embodiment is as follows:
as shown in fig. 1, in operation, the first hinge lug 1 and the second hinge lug 10 of the viscous damper are connected to the external hinge base, when the viscous damper of the elliptical cylinder body is excited externally and the external excitation is transmitted to the piston rod 12, the piston rod 12 is under the action of pressure or attraction, so as to drive the piston 6 to move axially in the cavity of the main cylinder 4, the damping medium 8 on one side of the cavity of the main cylinder 4 is compressed during the movement of the piston 6 in the cavity of the main cylinder 4, the damping medium 8 flows to the other side of the cavity of the main cylinder 4 through the damping hole 9 under the action of pressure, the energy consumption is dissipated by friction and pores of the damping medium 8, the conversion of kinetic energy into internal energy is realized, finally, the heat is discharged to the outside through the cylinder body, the energy consumption is completed, and the vibration and deformation of the structure are reduced, so as to achieve the purpose of protecting the structure.
While the present invention has been described in detail with reference to the embodiments, the scope of the present invention should not be limited to the embodiments. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (10)
1. The viscous damper with the oval cylinder body is characterized in that: comprises an auxiliary cylinder (3) and a main cylinder (4); one end of the auxiliary cylinder (3) is provided with a first hinge lug (1), and the other end of the auxiliary cylinder (3) is fixedly connected with one end of the main cylinder (4); the cavity of the main cylinder (4) is filled with damping medium (8), and a piston rod (12) which can consume energy with the damping medium (8) is arranged in the main cylinder (4); one end of the piston rod (12) penetrates through the main cylinder (4) and is connected with the second hinge lug (10), and the other end of the piston rod (12) penetrates through the main cylinder (4) and is contained in the cavity of the auxiliary cylinder (3); the piston rod (12) is provided with a piston (6) which divides the main cylinder (4) into two cavities, and the piston (6) is provided with at least two damping holes (9).
2. The elliptical cylinder viscous damper of claim 1, further comprising: the auxiliary cylinder (3), the main cylinder (4) and the piston (6) are all oval.
3. The elliptical cylinder viscous damper of claim 1, characterized in that: two damping holes (9) are formed in the piston (6), and the two damping holes are distributed in an axisymmetric mode by taking the piston rod (12) as an axis.
4. The elliptical cylinder viscous damper of claim 1, characterized in that: the first hinge lug (1) and the second hinge lug (10) are rotatably connected with an external hinge base and locked through a clamp nail (2).
5. The elliptical cylinder viscous damper of claim 1, characterized in that: metal guide rails (11) for stabilizing the movement of the piston rod (12) are arranged at two ends of the main cylinder (4); the piston rod (12) penetrates through the two ends of the main cylinder (4) and the metal guide rails (11) at the two ends.
6. The elliptical cylinder viscous damper of claim 5, characterized in that: the inner wall of the metal guide rail (11) is attached with a flexible piece (7).
7. The elliptical cylinder viscous damper of claim 6, characterized in that: the flexible piece (7) is made of polytetrafluoroethylene.
8. The elliptical cylinder viscous damper of any of claims 5, 6, and 7, characterized in that: the length of the piston rod (12) is greater than that of the main cylinder (4), and the length of the piston rod (12) is less than the total length of the auxiliary cylinder (3) and the main cylinder (4).
9. The elliptical cylinder viscous damper of claim 1, characterized in that: sealing elements (5) are arranged at two ends of the main cylinder (4), and the sealing elements (5) are made of polyurethane sealing paste.
10. The elliptical cylinder viscous damper of claim 1, characterized in that: the damping medium (8) is dimethyl silicone oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123319949.2U CN216430363U (en) | 2021-12-27 | 2021-12-27 | Viscous damper with elliptical cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123319949.2U CN216430363U (en) | 2021-12-27 | 2021-12-27 | Viscous damper with elliptical cylinder body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216430363U true CN216430363U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123319949.2U Active CN216430363U (en) | 2021-12-27 | 2021-12-27 | Viscous damper with elliptical cylinder body |
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|---|---|
| CN (1) | CN216430363U (en) |
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2021
- 2021-12-27 CN CN202123319949.2U patent/CN216430363U/en active Active
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