CN217896834U - Spring-track vertical rigidity-variable shock insulation support - Google Patents
Spring-track vertical rigidity-variable shock insulation support Download PDFInfo
- Publication number
- CN217896834U CN217896834U CN202221785934.7U CN202221785934U CN217896834U CN 217896834 U CN217896834 U CN 217896834U CN 202221785934 U CN202221785934 U CN 202221785934U CN 217896834 U CN217896834 U CN 217896834U
- Authority
- CN
- China
- Prior art keywords
- connecting plate
- vertical
- horizontal
- track
- spring
- 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.)
- Active
Links
Images
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The utility model relates to the technical field of shock insulation, in particular to a vertical variable-stiffness shock insulation support for a spring-track, which comprises an upper connecting plate and a lower connecting plate, wherein a vertical telescopic guide rod is arranged between the upper connecting plate and the lower connecting plate, and a vertical spiral spring is arranged between the upper connecting plate and the lower connecting plate; a middle vertical connecting plate is arranged in the middle of the bottom surface of the upper connecting plate, a horizontal limiting rod is arranged on the middle vertical connecting plate, two ends of the horizontal limiting rod are respectively sleeved with an end vertical connecting plate in a sliding mode, and a horizontal spiral spring is arranged between the middle vertical connecting plate and the end vertical connecting plate; the lower connecting plate is provided with a track plate, the vertical connecting plate at the end part is provided with a horizontal rolling shaft, and the track plate is provided with a limiting platform. The vertical spiral spring is of a positive stiffness structure, the middle vertical connecting plate, the horizontal limiting rod, the end vertical connecting plate, the horizontal rolling shaft and the track plate are of a negative stiffness structure, the middle vertical connecting plate, the horizontal limiting rod, the end vertical connecting plate, the horizontal rolling shaft and the track plate are matched with each other to achieve variable vertical stiffness, and the support has the characteristics of high static stiffness and low dynamic stiffness and is beneficial to vertical low-frequency shock insulation.
Description
Technical Field
The utility model relates to a shock insulation technical field especially relates to a vertical variable rigidity isolation bearing of spring-track.
Background
Under the influence of an earthquake, important equipment such as medical equipment, substation cabinets, cultural relic showcases and the like can be affected by the earthquake to cause the accuracy to be reduced or damaged. Meanwhile, a large number of earthquake records show that vertical earthquake motion exceeds horizontal earthquake motion sometimes, so that the influence of the vertical earthquake motion is not negligible.
At present, a rubber support widely applied to engineering does not have a shock insulation effect on vertical seismic oscillation, so that the research of a three-dimensional shock insulation technology becomes necessary, and the existing three-dimensional shock insulation support is large in vertical rigidity and high in natural frequency and cannot meet the requirement for isolating low-frequency shock.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an embodiment of the utility model provides a vertical variable rigidity isolation bearing of spring-track.
The utility model discloses an aspect of implementation provides a spring-track vertical variable stiffness shock insulation support, including upper junction plate and lower connecting plate that parallel arrangement from top to bottom, the equipartition is provided with vertical flexible guide bar between upper junction plate and the lower connecting plate, is provided with vertical coil spring between upper junction plate and the lower connecting plate, the line of connecting plate center above vertical coil spring and lower connecting plate center is symmetry axis symmetry setting; a middle vertical connecting plate is arranged in the middle of the bottom surface of the upper connecting plate, a horizontal limiting rod is fixedly arranged on the middle vertical connecting plate in a penetrating manner, end vertical connecting plates opposite to the middle vertical connecting plate are respectively sleeved at two ends of the horizontal limiting rod in a sliding manner, and a horizontal spiral spring is arranged between the middle vertical connecting plate and the end vertical connecting plates; the top surface of the lower connecting plate is provided with a track plate opposite to the end part vertical connecting plate, the outer side surface of the end part vertical connecting plate is provided with a horizontal rolling shaft, the inner side surface of the track plate is provided with a limiting platform with a whole semicircular cross section opposite to the horizontal rolling shaft, the horizontal rolling shaft is abutted against the limiting platform, and the axis of the horizontal rolling shaft is equal to the axis of the limiting platform in height.
Compared with the prior art, the beneficial effects of the utility model reside in that: the vertical spiral spring is used as a positive stiffness structure, the middle vertical connecting plate, the horizontal limiting rod, the end vertical connecting plate, the horizontal rolling shaft and the track plate are used as negative stiffness structures, the vertical stiffness structure and the negative stiffness structure are matched with each other to realize variable vertical stiffness, and the support has the characteristics of high static stiffness and low dynamic stiffness, and is beneficial to vertical low-frequency shock insulation.
Optionally, first bosses are oppositely arranged between the bottom surface of the upper connecting plate and the top surface of the lower connecting plate, the diameters of the first bosses are matched with the inner diameter of the vertical spiral spring, and the vertical spiral spring is clamped between the two first bosses which are opposite up and down.
Optionally, two side faces of the middle vertical connecting plate are provided with second bosses, the side face of the end vertical connecting plate opposite to the middle vertical connecting plate is provided with a second boss, and the horizontal spiral spring is clamped between the two second bosses.
Optionally, the horizontal limiting rod penetrates through and is fixed at four corner positions of the middle vertical connecting plate.
Optionally, the vertical telescopic guide rods are arranged between the four corners of the upper connecting plate and the lower connecting plate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural view of a spring-rail vertical variable-stiffness seismic isolation support provided by an embodiment of the present invention from the front;
fig. 2 is a schematic side view of a vertical spring-rail variable-stiffness seismic isolation support according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the cross-sectional view of FIG. 1 from AA;
FIG. 4 is a schematic sectional view of the structure along the direction BB in FIG. 2;
fig. 5 is a schematic structural view of an intermediate vertical connecting plate according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an end vertical connecting plate according to an embodiment of the present invention;
fig. 7 is a schematic structural view of an upper connecting plate according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a lower connecting plate according to an embodiment of the present invention.
The upper connecting plate comprises an upper connecting plate 1, a lower connecting plate 2, a vertical telescopic guide rod 3, a vertical spiral spring 4, a middle vertical connecting plate 5, a horizontal limiting rod 6, an end vertical connecting plate 7, a horizontal spiral spring 8, a track plate 9, a horizontal rolling shaft 10, a limiting table 11, a first boss 12, a guide rod mounting hole 13, a connecting plate mounting hole 14, a track plate mounting hole 15 and a second boss 16.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Referring to fig. 1-4, an embodiment of the present invention provides a spring-track vertical variable-stiffness seismic isolation support, which includes an upper connecting plate 1 and a lower connecting plate 2 that are arranged in parallel from top to bottom, wherein vertical telescopic guide rods 3 are uniformly distributed between the upper connecting plate 1 and the lower connecting plate 2, vertical coil springs 4 are arranged between the upper connecting plate 1 and the lower connecting plate 2, the vertical coil springs 4 can be arranged in two rows, and the connecting line of the centers of the upper connecting plate 1 and the lower connecting plate 2 of the vertical coil springs 4 is symmetrical to the axis of symmetry; a middle vertical connecting plate 5 is arranged in the middle of the bottom surface of the upper connecting plate 1, a horizontal limiting rod 6 is fixedly arranged on the middle vertical connecting plate 5 in a penetrating manner, end vertical connecting plates 7 opposite to the middle vertical connecting plate 5 are respectively sleeved at two ends of the horizontal limiting rod 6 in a sliding manner, and a horizontal spiral spring 8 is arranged between the middle vertical connecting plate 5 and the end vertical connecting plates 7; the top surface of the lower connecting plate 2 is provided with a track plate 9 opposite to the end vertical connecting plate 7, the outer side surface of the end vertical connecting plate 7 is provided with a horizontal rolling shaft 10, the horizontal rolling shaft is positioned in the horizontal middle position of the end vertical connecting plate 7, the inner side surface of the track plate 9 is provided with a limiting table 11 with a whole semicircular cross section opposite to the horizontal rolling shaft 10, the horizontal rolling shaft 10 is abutted against the limiting table 11, and the axis of the horizontal rolling shaft 10 is equal to the axis of the limiting table 11.
In implementation, referring to fig. 7 and 8, first bosses 12 are oppositely arranged between the bottom surface of the upper connecting plate 1 and the top surface of the lower connecting plate 2, the diameters of the first bosses 12 are matched with the inner diameter of the vertical coil spring 4, and the vertical coil spring 4 is clamped between the two first bosses 12 which are opposite up and down.
The upper connecting plate 1 and the lower connecting plate 2 can be rectangular plates, and the vertical telescopic guide rods 3 are arranged between four corners of the upper connecting plate 1 and the lower connecting plate 2; specifically, guide rod mounting holes 13 can be formed in the positions, close to the four corners, of the upper connecting plate 1 and the lower connecting plate 2, vertical sleeves in the vertical telescopic guide rods 3 are mounted in the guide rod mounting holes 13 of the lower connecting plate 2 through bolts, and vertical guide rods in the vertical telescopic guide rods 3 are mounted in the guide rod mounting holes 13 of the upper connecting plate 1 through bolts; the vertical guide rod is inserted into the vertical sleeve and is in sliding fit with the vertical sleeve.
A connecting plate mounting hole 14 can be formed in the middle of the upper connecting plate 1, and a threaded blind hole is correspondingly formed in the top of the middle vertical connecting plate 5 and is mounted in the connecting plate mounting hole 14 through a bolt; the lower connecting plate is provided with a track plate mounting hole 15, and the track plate 9 is mounted at the track plate mounting hole 15 through a bolt.
In implementation, referring to fig. 5 and 6, two side surfaces of the middle vertical connecting plate 5 are provided with second bosses 16, the side surface of the end vertical connecting plate 7 opposite to the middle vertical connecting plate 5 is provided with a second boss 16, the diameter of the second boss 16 is adapted to the inner diameter of the horizontal spiral spring, and the horizontal spiral spring 8 is clamped between the two opposite second bosses 16; in the manufacturing process, the horizontal spiral spring 8 is pre-compressed between the middle vertical connecting plate 5 and the end vertical connecting plate 7 through the second boss 16, the horizontal limiting rod 6 ensures the telescopic motion of the horizontal spiral spring 8 in the horizontal direction, in the initial state, the axis of the horizontal roller 10 is equal to the axis of the limiting table 11 in height, no vertical component force exists between the horizontal spiral spring and the limiting table, when the lower connecting plate 10 moves upwards from the initial position, the compression amount of the horizontal spiral spring 8 is reduced, the elastic restoring force is reduced, and the track plate 9 provides a downward vertical component force for the horizontal roller 10 through the limiting table 11; when the lower connecting plate 10 moves downwards from the initial position, the compression amount of the horizontal spiral spring 8 is reduced, the elastic restoring force is reduced, and the corresponding track plate 9 provides an upward vertical component force for the horizontal roller 10 through the limiting table 11, so that the load displacement relation of the negative stiffness principle is realized.
The middle vertical connecting plate 5 can be a rectangular plate, and the horizontal limiting rods 6 are fixedly arranged at four corner positions of the middle vertical connecting plate 5 in a penetrating manner; after the horizontal limiting rod 6 passes through the middle vertical connecting plate 5, a jackscrew can be used for fixing the horizontal limiting rod and the middle vertical connecting plate.
According to the scheme provided by the embodiment of the utility model, the vertical spiral spring 4 is used as a positive stiffness structure, the middle vertical connecting plate 5, the horizontal limiting rod 6, the end vertical connecting plate 7, the horizontal roller 8 and the track plate 9 are used as negative stiffness structures, and the positive stiffness structure and the negative stiffness structure are jointly borne; in an initial state, the high-negative stiffness structures such as the axis of the horizontal roller 10 and the axis of the limiting table 11 do not exert force, only the vertical spiral spring 4 is compressed to bear the upper load, when the lower connecting plate 2 moves upwards or downwards, the positive stiffness structure and the negative stiffness structure bear the load together, namely the stiffness of the support is changed during vibration, the vertical equivalent stiffness of the support is effectively reduced, and the support has the characteristics of high static stiffness and low dynamic stiffness, and is beneficial to low-frequency shock insulation.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. A spring-track vertical variable-stiffness shock insulation support is characterized by comprising an upper connecting plate and a lower connecting plate which are arranged in parallel up and down, wherein vertical telescopic guide rods are uniformly distributed between the upper connecting plate and the lower connecting plate; a middle vertical connecting plate is arranged in the middle of the bottom surface of the upper connecting plate, a horizontal limiting rod is fixedly arranged on the middle vertical connecting plate in a penetrating manner, end vertical connecting plates opposite to the middle vertical connecting plate are respectively sleeved at two ends of the horizontal limiting rod in a sliding manner, and a horizontal spiral spring is arranged between the middle vertical connecting plate and the end vertical connecting plates; the top surface of the lower connecting plate is provided with a track plate opposite to the end part vertical connecting plate, the outer side surface of the end part vertical connecting plate is provided with a horizontal rolling shaft, the inner side surface of the track plate is provided with a limiting platform with a whole semicircular cross section opposite to the horizontal rolling shaft, the horizontal rolling shaft is abutted against the limiting platform, and the axis of the horizontal rolling shaft is equal to the axis of the limiting platform in height.
2. The spring-track vertical variable stiffness seismic isolation bearing as claimed in claim 1, wherein first bosses are oppositely arranged between the bottom surface of the upper connecting plate and the top surface of the lower connecting plate, the diameter of each first boss is matched with the inner diameter of the vertical coil spring, and the vertical coil spring is clamped between the two first bosses which are opposite up and down.
3. The spring-track vertical stiffness-variable seismic isolation bearing as claimed in claim 1, wherein second bosses are provided on both side surfaces of the middle vertical connecting plate, second bosses are provided on the side surfaces of the end vertical connecting plates opposite to the middle vertical connecting plate, and the horizontal coil spring is clamped between the two opposite second bosses.
4. The spring-rail vertical stiffness-variable seismic isolation bearing as claimed in claim 1, wherein the horizontal limiting rods are fixedly inserted into four corner positions of the middle vertical connecting plate.
5. The spring-track vertical variable stiffness seismic isolation mount of claim 1, wherein the vertical telescoping guide rods are disposed between the four corners of the upper and lower connecting plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221785934.7U CN217896834U (en) | 2022-07-11 | 2022-07-11 | Spring-track vertical rigidity-variable shock insulation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221785934.7U CN217896834U (en) | 2022-07-11 | 2022-07-11 | Spring-track vertical rigidity-variable shock insulation support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217896834U true CN217896834U (en) | 2022-11-25 |
Family
ID=84134478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221785934.7U Active CN217896834U (en) | 2022-07-11 | 2022-07-11 | Spring-track vertical rigidity-variable shock insulation support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217896834U (en) |
-
2022
- 2022-07-11 CN CN202221785934.7U patent/CN217896834U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110206184B (en) | Compound shock attenuation grading yield damper | |
| CN101029539A (en) | Vertical shock-absorbing stand with variable rigidity and damping | |
| CN217896834U (en) | Spring-track vertical rigidity-variable shock insulation support | |
| CN115126810A (en) | Spring-connecting rod vertical rigidity-variable shock insulation support | |
| CN214402261U (en) | Self-balancing three-dimensional shock isolation system with negative stiffness | |
| CN213930056U (en) | A shock attenuation fixing device for computer hardware | |
| CN115198907A (en) | Spring-track vertical variable-stiffness shock insulation support | |
| CN115126110A (en) | Vertical variable-rigidity three-dimensional shock insulation support | |
| CN111809763A (en) | A antidetonation support for building engineering | |
| CN110848313B (en) | Semi-circular slide rail type quasi-zero stiffness vibration isolator | |
| CN117052008A (en) | Self-resetting energy-consumption three-dimensional combined seismic reduction and isolation support and mounting method thereof | |
| CN109881784B (en) | Cambered surface sliding type three-dimensional shock insulation support | |
| CN216839858U (en) | Anti-seismic building supporting steel frame | |
| CN217896833U (en) | Vertical variable-rigidity three-dimensional shock insulation support | |
| CN213330258U (en) | Box house of formula of taking precautions against earthquakes | |
| CN212900662U (en) | Aerospace electronic product support frame base | |
| CN2310093Y (en) | Viscous damping laminated-layer rubber support base | |
| CN114790785A (en) | Large-bearing-capacity high-energy-consumption three-dimensional shock insulation support suitable for building structure | |
| CN114016796A (en) | Anti-seismic pressure dividing device for steel pipe concrete column for house design | |
| CN113235420A (en) | Anti-seismic bridge railing device | |
| CN112538909A (en) | Self-balancing three-dimensional shock isolation system with negative stiffness | |
| CN218454488U (en) | Second-order quakeproof building structure | |
| CN220184249U (en) | Assembled building structure shock absorber | |
| CN219654040U (en) | Assembled building decoration curtain wall structure | |
| CN216590657U (en) | Diagonal connecting piece of anti-seismic building support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |