CN212389103U - Friction force variable type self-resetting shock isolation device - Google Patents
Friction force variable type self-resetting shock isolation device Download PDFInfo
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- CN212389103U CN212389103U CN202020755715.9U CN202020755715U CN212389103U CN 212389103 U CN212389103 U CN 212389103U CN 202020755715 U CN202020755715 U CN 202020755715U CN 212389103 U CN212389103 U CN 212389103U
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Abstract
The utility model discloses a friction force variable self-resetting shock isolation device, one end of the shell is fixedly connected with an end plate; the other end of the shell is provided with a first shaft sleeve, a shaft rod is embedded in the first shaft sleeve, one end of the shaft rod penetrates through the first shaft sleeve and is fixedly connected with the connecting plate, a second shaft sleeve is further arranged on one side, close to the end plate, of the shell, a central rod is embedded in the second shaft sleeve, the left side of the central rod and the right side of the shaft rod are respectively and fixedly connected to a telescopic damping module, the right side of the central rod is further embedded and connected with a telescopic damping module, and a first spring is further arranged between the. The device of this application make full use of the elastic property of spring guarantees the stability of component, designs horizontal spring, friction pad and oblique steel sheet ingeniously for frictional force can be according to vibrations reaction automatic adjustment, and does work through sliding friction and dissipate the vibrations energy, and the power consumption performance is good, and the practicality is strong, and the design is simple, and economic benefits is high.
Description
Technical Field
The utility model relates to an antidetonation device field, concretely relates to frictional force variable type is from restoring to throne isolation device.
Background
China is a country with frequent earthquakes, and huge energy generated by earthquake outbreaks damages buildings, so that life and property safety of people is seriously threatened. Conventional seismic design of building structures, which are primarily designed to resist the effects of earthquakes by increasing the strength, stiffness and ductility of the structure, are neither economical nor effective as desired. The modern energy dissipation and shock absorption technology is that an energy dissipation device is added in a structure to consume earthquake energy so as to reduce the damage to the main body of the structure, and the modern energy dissipation and shock absorption technology is an extremely effective earthquake-proof design. At present, the friction damper is a common energy-consuming damping device, has a simple structure, is convenient to obtain materials, has good energy-consuming property and wide application range, and can effectively improve the structural shock resistance. Under the action of a huge earthquake, the traditional friction damper structure can generate larger plastic deformation and even destroy, and earthquake energy can not be dissipated, so that the traditional earthquake-proof design has high economic cost and poor earthquake-proof effect. And current friction damper can't respond to according to vibrations usually and change frictional force, and the design is comparatively single, and does not have from reset function, and the deformation that the structure produced because of vibrations can't recover, has potential risk.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a friction force variable self-resetting seismic isolation device with simple structure and easy production.
In order to realize the technical purpose, the utility model discloses a scheme is: a friction force variable type self-resetting shock isolation device comprises a connecting plate, an end plate and a shell, wherein the end plate is fixedly connected to one end of the shell;
the other end of the shell is provided with a first shaft sleeve, a shaft lever is embedded in the first shaft sleeve, one end of the shaft lever penetrates through the first shaft sleeve and is fixedly connected with the connecting plate, a second shaft sleeve is further arranged on one side, close to the end plate, of the shell, a central rod is embedded in the second shaft sleeve, the left side of the central rod and the right side of the shaft lever are respectively and fixedly connected to a telescopic damping module, the right side of the central rod is further embedded and connected with a telescopic damping module, a first spring is further arranged between the two telescopic damping modules, and the first spring is;
the telescopic shock absorption module comprises a second spring, an inclined plate, wedge plates, a supporting plate and a rectangular plate, the wedge plates are installed on two sides of the rectangular plate, the upper sides of the wedge plates are respectively contacted with the two inclined plates, the rectangular plate is respectively provided with the second spring from top to bottom, the supporting plate is further arranged between the second spring and the inclined plates, and a friction pad is arranged on the supporting plate and is contacted with the inclined plates.
Preferably, the end plate is fixedly connected with the shell through a U-shaped frame.
Preferably, the included angle between the inclined plate and the inner wall of the shell is 3-10 degrees.
Preferably, the whole wedge-shaped plate is of a convex structure, one end of the wedge-shaped plate is of a trapezoidal structure, and the supporting plate can be stretched and moved up and down between the two wedge-shaped plates.
The utility model has the advantages that the device of the application makes full use of the elastic property of the spring, ensures the stability of the component, skillfully designs the transverse spring, the friction pad and the inclined steel plate, so that the friction force can be automatically adjusted according to the vibration reaction, and the vibration energy is dissipated by applying work through sliding friction, and the energy consumption performance is good; the shock insulation device has a self-resetting function, is suitable for shock insulation designs of various structures, and enables the deformation of the structure after the shock to be recovered to an initial state; the device of the application has the advantages of high stability and safety, strong practicability, simple design and high economic benefit.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a state reference diagram of the present invention;
fig. 3 is a reference diagram of the installation and use state of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, the embodiment of the present invention is a friction force variable self-resetting seismic isolation device, which includes a connecting plate 1, an end plate 2 and a housing 3, wherein the end plate 2 is fixedly connected to one end of the housing 3;
the other end of the shell 3 is provided with a first shaft sleeve 4, a shaft rod 5 is embedded in the first shaft sleeve 4, one end of the shaft rod 5 penetrates through the first shaft sleeve 4 to be fixedly connected with the connecting plate 1, one side, close to the end plate 2, of the shell 3 is further provided with a second shaft sleeve 6, a central rod 7 is embedded in the second shaft sleeve 6, the left side of the central rod 7 and the right side of the shaft rod 5 are respectively and fixedly connected to a telescopic damping module 8, the right side of the central rod 7 is further embedded and connected with a telescopic damping module 8, a first spring 9 is further arranged between the two telescopic damping modules 8, and the first spring 9 is embedded and sleeved on;
the telescopic shock absorption module 8 comprises a second spring 802, an inclined plate 803, a wedge-shaped plate 804, a support plate 805 and a rectangular plate 801, the wedge-shaped plate 804 is installed on two sides of the rectangular plate 801, the lower upper side and the lower side of the wedge-shaped plate 804 are respectively contacted with the two inclined plates 803, the rectangular plate 801 is respectively provided with the second spring 802 up and down, the support plate 805 is further arranged between the second spring 802 and the inclined plates 803, and a friction pad 806 arranged on the support plate 805 is contacted with the inclined plates 803.
The bronze backing plate 807 is further arranged at the position where the two sides of the supporting plate 805 are in contact with the wedge-shaped plate 804, and the bronze backing plate 807 can effectively prevent the second spring 802 from shaking between the rectangular plate 801 and the supporting plate 805.
The end plate 2 is fixedly connected with the shell through a U-shaped frame 10.
The included angle between the inclined plate 803 and the inner wall of the shell 3 is 3-10 degrees.
The whole wedge-shaped plate 804 is convex structure, wedge-shaped plate 804 one end is the trapezium structure, backup pad 805 can be in the activity of stretching out and drawing back from top to bottom between two wedge-shaped plates 804.
In the vibration, the energy of the device is dissipated by internal friction force, when the sliding friction material pad and the inclined plate are displaced, for example, when the sliding friction material pad and the inclined plate are pressed, the wedge plate on the left side is displaced to the right side by delta l, and at the moment, the second spring is subjected to normal pressure of the inclined steel plate to generate positive pressure on the friction pad, so that larger friction force is generated, the magnitude of the larger friction force depends on the friction between materials and the magnitude of the normal force of the sliding section, and the normal force is linearly increased along with the deformation of the device due to the inclination angle of the inclined plate and the action of the first spring and the second spring. The calculation formula of the outward axial force generated by the device at the moment is as follows:
Fs＝2μΔltanαks+kΔl
where μ is a coefficient of friction between the friction pad and the swash plate, Δ l tan α is a deformation amount of the second spring, and ksIs the stiffness of the second spring and k is the stiffness of the first spring. Similarly, when the device is pulled, the right wedge plate is displaced to the left. When the vibration reaction is weakened or disappeared, the restoring force of the friction force variable type self-resetting shock isolation device is the sum of the elastic counter force and the friction force during loading, the directions of the two forces are the same, when the shock isolation device is unloaded, the restoring force is the difference between the elastic counter force and the friction force, the directions of the two forces are opposite, the elastic counter force is usually greater than the friction force in value, the device is gradually restored to the initial position under the action of the elastic counter force, and the self-resetting function is realized. An example of the specific application of the device in a bridge is shown in fig. 3.
Be applied to structure antidetonation design with variable type of frictional force from restoring to throne isolation device, compare in traditional antidetonation design, the friction power consumption ability of this application make full use of attenuator, and through the design of sliding friction and spring, make the device can adjust the frictional force of self according to the displacement that the device produced under the vibrations reaction, thereby can satisfy the antidetonation demand of multiple structure, and the device possesses from the reset function, the structure that can make after shaking take place to warp resumes initial condition, guarantee the stability and the security of structure, the design is simple and convenient, and the economic benefits is good, and is a good antidetonation design.
The device provided by the application fully utilizes the elastic performance of the spring, ensures the stability of the component, skillfully designs the transverse spring, the friction pad and the inclined steel plate, so that the friction force can be automatically adjusted according to the vibration reaction, and the vibration energy is dissipated by applying work through sliding friction, and the energy consumption performance is good; the shock insulation device has a self-resetting function, is suitable for shock insulation designs of various structures, and enables the deformation of the structure after the shock to be recovered to an initial state; the device of the application has the advantages of high stability and safety, strong practicability, simple design and high economic benefit.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (4)
1. A friction force variable type self-resetting shock isolation device is characterized in that: the connecting plate comprises a connecting plate, an end plate and a shell, wherein the end plate is fixedly connected to one end of the shell;
the other end of the shell is provided with a first shaft sleeve, a shaft lever is embedded in the first shaft sleeve, one end of the shaft lever penetrates through the first shaft sleeve and is fixedly connected with the connecting plate, a second shaft sleeve is further arranged on one side, close to the end plate, of the shell, a central rod is embedded in the second shaft sleeve, the left side of the central rod and the right side of the shaft lever are respectively and fixedly connected to a telescopic damping module, the right side of the central rod is further embedded and connected with a telescopic damping module, a first spring is further arranged between the two telescopic damping modules, and the first spring is;
the telescopic shock absorption module comprises a second spring, an inclined plate, wedge plates, a supporting plate and a rectangular plate, the wedge plates are installed on two sides of the rectangular plate, the upper sides of the wedge plates are respectively contacted with the two inclined plates, the rectangular plate is respectively provided with the second spring from top to bottom, the supporting plate is further arranged between the second spring and the inclined plates, and a friction pad is arranged on the supporting plate and is contacted with the inclined plates.
2. A variable friction self-resetting seismic isolation apparatus according to claim 1, wherein: the end plate is fixedly connected with the shell through a U-shaped frame.
3. A variable friction self-resetting seismic isolation apparatus according to claim 1, wherein: the included angle between the inclined plate and the inner wall of the shell is 3-10 degrees.
4. A variable friction self-resetting seismic isolation apparatus according to claim 1, wherein: the wedge-shaped plate is integrally of a convex structure, one end of the wedge-shaped plate is of a trapezoidal structure, and the supporting plate can stretch and move up and down between the two wedge-shaped plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020755715.9U CN212389103U (en) | 2020-05-09 | 2020-05-09 | Friction force variable type self-resetting shock isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020755715.9U CN212389103U (en) | 2020-05-09 | 2020-05-09 | Friction force variable type self-resetting shock isolation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212389103U true CN212389103U (en) | 2021-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020755715.9U Active CN212389103U (en) | 2020-05-09 | 2020-05-09 | Friction force variable type self-resetting shock isolation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212389103U (en) |
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2020
- 2020-05-09 CN CN202020755715.9U patent/CN212389103U/en active Active
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