A vibration double-control inclined orthogonal combined vibration isolation support
By designing an obliquely placed orthogonal combination vibration isolation bearing, the problem that existing vibration isolation bearings cannot achieve both vertical bearing capacity and horizontal vibration isolation is solved, achieving the effect of dual vibration control, improving vibration isolation performance and reducing construction difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGZHOU UNIVERSITY
- Filing Date
- 2023-09-26
- Publication Date
- 2026-05-08
AI Technical Summary
Existing vibration isolation bearings cannot simultaneously achieve the dual functions of vertical load bearing and horizontal vibration isolation, and they also have problems such as excessively high vertical stiffness or inability to provide damping, resulting in an inability to effectively isolate environmental vibrations and seismic effects.
An inclined orthogonal combination vibration isolation support is adopted. By installing inclined vibration isolation components on the inclined platform, the vertical stiffness is reduced by utilizing the vertical vector sum of the normal compressive stiffness and tangential shear stiffness of the vibration isolation components. At the same time, the vibration isolation components are orthogonally arranged in the horizontal plane to achieve stable large shear deformation. Combined with the connection method of the connector, vertical bearing and horizontal isolation are achieved.
It realizes the dual functions of vertical bearing and horizontal vibration isolation of the vibration isolation bearing, improves the vertical vibration isolation performance, reduces the construction difficulty, and is easy to standardize assembly.
Smart Images
Figure CN117365174B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vibration reduction structure technology in civil engineering, specifically to an inclined orthogonal combination vibration isolation support with dual vibration control. Background Technology
[0002] Currently, an increasing number of buildings, structures, and equipment place significant dual demands on their vibration isolation bearing products: the bearings must possess excellent load-bearing and deformation capacity under the vertical gravity and seismic loads of the superstructure, and also exhibit good three-dimensional vibration isolation capabilities under environmental vibrations—a dual vibration and seismic control function. However, to achieve this dual vibration and seismic control function, current mature vibration isolation bearings still have the following shortcomings:
[0003] 1. Existing mature structural seismic isolation rubber bearings only have the single function of isolating horizontal seismic forces and cannot isolate environmental vibrations. For example, natural rubber isolation bearings (LNR bearings), lead-core rubber isolation bearings (LRB bearings), high-damping rubber isolation bearings (HDR bearings), and elastic sliding plate isolation bearings (SLB bearings) have excessive vertical stiffness, thus only providing horizontal isolation and lacking three-dimensional vibration isolation capabilities. To improve the function of rubber bearings in isolating environmental vibrations, academia and engineering have developed thick-layer (thick-walled) rubber bearings. However, this approach reduces the vertical bearing capacity, horizontal deformation capacity, and stability of the rubber bearings, affecting their function of bearing and isolating seismic forces, and failing to truly achieve dual control of vibration and seismic forces.
[0004] 2. Existing mature steel spring bearings only function to isolate environmental vibrations and cannot isolate horizontal seismic forces. Steel springs do not have the capacity to withstand large deformations under horizontal seismic forces and cannot provide the damping required for vibration isolation, necessitating the addition of dampers. Furthermore, steel springs are relatively expensive, significantly increasing construction costs.
[0005] 3. Existing vibration isolation bearings that use series combination, such as the combination of rubber bearings and steel springs, or the combination of traditional rubber bearings and thick-layered rubber bearings, are difficult to coordinate with different design surface pressure and bearing capacity parameters of different types of bearings in series during the design process. They have to choose between isolating earthquakes or isolating environmental vibrations, thus sacrificing the other vibration isolation function, and thus failing to truly achieve dual control of vibration and seismicity. Summary of the Invention
[0006] To address the technical problems existing in the prior art, the purpose of this invention is to provide an obliquely placed orthogonal combination vibration isolation bearing with dual vibration and seismic control, which solves the technical contradiction between the vertical flexibility and horizontal stability of the vibration isolation bearing, so that the vertical stiffness of the rubber bearing can be reduced while maintaining the vertical bearing capacity and large horizontal deformation capacity, thereby achieving dual vibration and seismic control.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A vibration-controlled, inclined orthogonal composite vibration isolation bearing includes an upper connecting plate, a middle connecting plate, and a lower connecting plate arranged sequentially from top to bottom. At least two parallel inclined platforms are installed at the bottom of the upper connecting plate, at least two parallel inclined platforms are installed at the top of the lower connecting plate, and at least one inclined platform is installed at both the top and bottom of the middle connecting plate. The two inclined platforms on the upper connecting plate are fixedly connected to the inclined platform at the top of the middle connecting plate via two vibration isolation components, and the two inclined platforms on the lower connecting plate are fixedly connected to the inclined platform at the bottom of the middle connecting plate via two vibration isolation components. The two vibration isolation components between the upper and middle connecting plates are parallel to each other, and the vibration isolation component between the upper and middle connecting plates is perpendicular to the vibration isolation component between the lower and middle connecting plates.
[0009] As a preferred embodiment, the inclined platform at the bottom of the upper connecting plate and the inclined platform at the top of the lower connecting plate are perpendicular to each other in the vertical projection direction; the inclined platform at the bottom of the upper connecting plate and the inclined platform at the top of the middle connecting plate are parallel to each other; the two inclined platforms at the top of the lower connecting plate are parallel to each other and the inclined platforms at the bottom of the middle connecting plate; the two inclined platforms on the middle connecting plate are perpendicular to each other in the vertical projection direction; the upper connecting plate, the middle connecting plate and the lower connecting plate are equally spaced in the vertical direction; the two vibration isolation components located between the lower connecting plate and the middle connecting plate are inclined from the lower outer direction towards the center of the middle connecting plate; the two vibration isolation components located between the upper connecting plate and the middle connecting plate are inclined from the center of the middle connecting plate outward and upward.
[0010] As a preferred embodiment, the vibration isolation components all include multiple steel plates, multiple rubber plates, and two sealing plates for connecting with the inclined platform. The multiple steel plates and multiple rubber plates are stacked alternately to form a vibration isolation component. The two ends of the vibration isolation component are respectively connected to the two sealing plates to form a vibration isolation component. The connection method of the multiple steel plates and multiple rubber plates is an integral vulcanization connection, and the connection method of the vibration isolation component and the two sealing plates is an integral vulcanization connection.
[0011] As a preferred embodiment, the inclined platform includes two inclined plates, multiple vertical plates, and multiple horizontal plates. The inclined plates are used to connect with the sealing plate, and the vertical plates are used to connect the upper connecting plate, the middle connecting plate, or the lower connecting plate. The vertical plates are isosceles trapezoidal structures, and the two sides of the vertical plates are respectively attached and fixed to one side surface of the two inclined plates. The multiple vertical plates are evenly distributed between the two inclined plates, and one end of the multiple horizontal plates is fixedly connected to the top of the multiple vertical plates. The horizontal plates and the vertical plates are set perpendicular to each other.
[0012] As a preferred embodiment, the vertical plate is fixed to the two inclined plates by welding. The bottom edge of the vertical plate is the long bottom edge of an isosceles trapezoid. The bottom edge of the vertical plate is provided with a bottom edge threaded hole. The upper connecting plate, the middle connecting plate and the lower connecting plate are all provided with first bolt holes. The inclined platform is connected to the bottom edge threaded hole of the vertical plate by bolts.
[0013] As a preferred embodiment, the sealing plate is provided with connecting thread holes, and the inclined plate is provided with second bolt holes. The vibration isolation component is connected to the connecting thread holes of the sealing plate and the second bolt holes of the inclined plate by bolts.
[0014] As a preferred embodiment, one end of an inclined platform on the upper connecting plate is connected to one end of each of the two inclined platforms on the lower connecting plate via connectors, and the other end of another inclined platform on the upper connecting plate is connected to the other ends of each of the two inclined platforms on the lower connecting plate via connectors.
[0015] As a preferred embodiment, the connector is a connecting rod, both ends of which are provided with external threads. A third bolt hole is provided on the horizontal plate. One end of the connecting rod is connected to the horizontal plate located on the upper connecting plate by a nut, and the other end of the connecting rod is connected to the horizontal plate located on the lower connecting plate by a nut.
[0016] In summary, the present invention has the following advantages:
[0017] 1. Traditional horizontally mounted rubber bearings use the normal compressive stiffness of the laminated rubber as their vertical compressive stiffness, resulting in excessively high vertical stiffness and failing to isolate vertical vibrations. The vibration isolation bearing of this invention mounts the vibration isolation component on an inclined platform, causing the component to tilt. Due to the high normal compressive stiffness and low tangential shear stiffness of the vibration isolation component, the overall compressive stiffness of the vibration isolation bearing is transformed into a vertical vector sum of the normal compressive stiffness and tangential shear stiffness of the component itself. This significantly reduces the vertical stiffness of the vibration isolation bearing, improves its vertical vibration isolation performance, and thus achieves dual vibration control.
[0018] 2. Traditional inclined rubber bearings cannot freely achieve stable large shear deformation in the horizontal direction, thus failing to provide horizontal seismic isolation. The vibration isolation bearing of this invention features a double-layer vibration isolation component. All inclined rubber plates in the vibration isolation component located on the middle connecting plate can withstand stable large shear deformation in the axial direction of the same inclined platform. Similarly, all inclined rubber plates in the vibration isolation component located below the middle connecting plate can also withstand stable large shear deformation in the axial direction of the other inclined platform. Furthermore, this invention arranges the shear deformation direction of the vibration isolation component on the middle connecting plate and the vibration isolation component located below the middle connecting plate orthogonally (perpendicularly) in the horizontal plane. This ensures that any large shear deformation of the vibration isolation bearing in any direction in the horizontal plane can be decomposed into stable large shear deformations in two orthogonal (perpendicular) directions of the vibration isolation component, thereby achieving the function of horizontal seismic isolation.
[0019] 3. The vibration isolation bearing of the present invention, through the connection of the connecting parts, allows the compression deformation under vertical load to be completed before the structure is constructed. During the construction process, there is no structural settlement caused by the vertical compression of the vibration isolation bearing, which reduces the construction difficulty.
[0020] 4. The vibration isolation support of the present invention consists of an inclined platform and vibration isolation components arranged alternately in the horizontal direction, and then assembled in series by connecting plates (upper, middle and lower connecting plates). The inclined platform and vibration isolation components are standardized components. In actual implementation, the number and length of the inclined platform and vibration isolation components arranged alternately can be determined according to the size and specifications of the vibration isolation support in the structural design, which makes it easy to achieve standardized assembly. Attached Figure Description
[0021] Figure 1 This is a perspective view of a vibration isolation support that includes six inclined platform bases and four vibration isolation component support bases.
[0022] Figure 2 for Figure 1 The main view.
[0023] Figure 3 for Figure 2 The left view.
[0024] Figure 4 for Figure 1 The 3D view after removing the upper connecting plate.
[0025] Figure 5 This is a perspective view of the inclined platform mounted on the lower connecting plate and connected to it via vibration isolation components mounted on the middle connecting plate.
[0026] Figure 6 for Figure 5 A three-dimensional view taken from below.
[0027] Figure 7 This is a perspective view showing the connection between the inclined support installed on the upper connecting plate and the inclined support installed on the lower connecting plate, and the connection between the inclined support installed on the upper connecting plate and the vibration isolation component.
[0028] Figure 8 This is a schematic diagram of a vibration isolation component.
[0029] Among them, 1 is the upper connecting plate, 2 is the middle connecting plate, 3 is the lower connecting plate, 4 is the inclined platform, 5 is the vibration isolation component, 6 is the connector, 7 is the inclined plate, 8 is the vertical plate, 9 is the bottom edge threaded hole, 10 is the horizontal plate, 11 is the third bolt hole, 12 is the sealing plate, 13 is the steel plate, 14 is the rubber plate, 15 is the first bolt hole, 16 is the connecting threaded hole, and 17 is the second bolt hole. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to specific embodiments.
[0031] like Figure 1-8 As shown in the figure, this embodiment provides a vibration-controlled inclined orthogonal combination vibration isolation support, including an upper connecting plate 1, a middle connecting plate 2, a lower connecting plate 3, six inclined platform bases 4, and four vibration isolation components 5. The upper connecting plate 1, the middle connecting plate 2, and the lower connecting plate 3 are arranged vertically from top to bottom. Two inclined platform bases 4 are horizontally symmetrically installed at the bottom of the upper connecting plate 1. Two inclined platform bases 4 are fixedly installed at the top and bottom of the middle connecting plate 2, respectively. Two inclined platform bases 4 are horizontally symmetrically installed at the top of the lower connecting plate 3. One end of each of the two vibration isolation components 5 is fixedly connected to the inclined platform base 4 located on the lower connecting plate 3, and the other end of each of the two vibration isolation components 5 is fixedly connected to the inclined platform base 4 located at the bottom of the middle connecting plate 2. One end of the other two vibration isolation components 5 is fixedly connected to the two inclined platform bases 4 located at the bottom of the upper connecting plate 1, and the other end of the other two vibration isolation components 5 is fixedly connected to the inclined platform base 4 located at the top of the middle connecting plate 2.
[0032] In this embodiment, the upper connecting plate 1, the middle connecting plate 2, and the lower connecting plate 3 are all flat plate structures, obtained by cutting existing steel plates. The cross-section of the inclined platform 4 can be a triangular structure or other structures with inclined surfaces, and the inclined platform 4 can be formed by assembling and welding existing steel plates. The six inclined platforms 4 are installed in pairs on the upper connecting plate 1, the middle connecting plate 2, and the lower connecting plate 3. The two inclined platforms 4 on the upper connecting plate 1 and the lower connecting plate 3 are symmetrically distributed on both sides along their centers, while the two inclined platforms 4 on the middle connecting plate 2 are located at its top and bottom, respectively. Furthermore, since the inclined surfaces of the inclined platforms 4 are inclined relative to the upper connecting plate 1, the middle connecting plate 2, and the lower connecting plate 3, the vibration isolation component 5 connecting the upper connecting plate 1 and the middle connecting plate 2 is inclined from the middle connecting plate 2 to the upper connecting plate 1. On the outside; the vibration isolation component 5 connected between the middle connecting plate 2 and the lower connecting plate 3 is inclined to the outside of the lower connecting plate 3 from the middle connecting plate 2. By tilting the vibration isolation component 5, due to the high normal compressive stiffness and low tangential shear stiffness of the vibration isolation component 5, the overall compressive stiffness of the vibration isolation support is transformed into the vertical vector sum of the normal compressive stiffness and tangential shear stiffness of the vibration isolation component 5, thereby significantly reducing the vertical stiffness of the vibration isolation support and improving the vertical vibration isolation performance of the vibration isolation support, thus realizing the dual control of vibration and vibration of the vibration isolation support.
[0033] In some embodiments, the inclined platform 4 at the bottom of the upper connecting plate 1 and the inclined platform 4 at the top of the lower connecting plate 3 are perpendicular to each other in the vertical projection direction, that is, the two inclined platforms 4 at the top of the upper connecting plate 1 and the two inclined platforms 4 at the bottom of the lower connecting plate 3 are connected end to end to form a rectangular distribution; the inclined platform 4 at the bottom of the upper connecting plate 1 and the inclined platform 4 at the top of the middle connecting plate 2 are parallel to each other, which facilitates the installation of the vibration isolation component 5 along the length of the inclined platform 4, increases the contact area of the vibration isolation component 5 on the inclined platform 4, and thus ensures uniform force distribution; the two inclined platforms 4 at the top of the lower connecting plate 3 are both perpendicular to the inclined platform 4 at the bottom of the middle connecting plate 2. The seats 4 are parallel to each other, which increases the contact area and makes the overall force uniform. The two inclined seats 4 located on the middle connecting plate 2 are perpendicular to each other in the vertical projection direction, so they can withstand vibrations in both horizontal and vertical directions. The upper connecting plate 1, the middle connecting plate 2 and the lower connecting plate 3 are equally spaced in the vertical direction. The two vibration isolation components 5 located between the lower connecting plate 3 and the middle connecting plate 2 are inclined from the lower outer direction to the center of the middle connecting plate 2. The two vibration isolation components 5 located between the upper connecting plate 1 and the middle connecting plate 2 are inclined from the center of the middle connecting plate 2 to the upper outer direction. This distribution makes the overall vibration isolation performance of the vibration isolation support better.
[0034] like Figure 8 As shown, in some embodiments, the vibration isolation component 5 includes multiple steel plates 13, multiple rubber plates 14, and two sealing plates 12 for connection with the inclined platform 4. The multiple steel plates 13 and multiple rubber plates 14 are stacked alternately to form a vibration isolation member. The two ends of the vibration isolation member are respectively connected to the two sealing plates 12 to form the vibration isolation component 5. The connection method of the multiple steel plates 13 and multiple rubber plates 14 is an integral vulcanization connection, and the connection method of the vibration isolation member and the two sealing plates 12 is an integral vulcanization connection. The sealing plates 12, steel plates 13, and rubber plates 14 are all rectangular plates and of the same size. The sealing plates 12 are also made of steel. By making the rubber into thin sheet-shaped rubber plates 14 and then stacking them with thin sheet-shaped steel plates 13, the steel plates 13 will constrain the lateral expansion of the rubber, greatly reduce the axial deformation, greatly improve the compressive stiffness, and generate strong compressive resistance. Furthermore, the thin steel plate 13 constrains the lateral expansion of the rubber and does not affect the horizontal shear deformation of the rubber plate 14. Therefore, the rubber plate 14 can continue to exert its own soft characteristics, so that the seismic isolation bearing has very low horizontal stiffness.
[0035] like Figure 4-7As shown, in some embodiments, the inclined platform 4 includes two inclined plates 7, multiple vertical plates 8, and multiple horizontal plates 10. The inclined plates 7 are used to connect with the sealing plate 12, and the vertical plates 8 are used to connect the upper connecting plate 1, the middle connecting plate 2, or the lower connecting plate 3. The vertical plates 8 are isosceles trapezoidal structures, and their two sides are respectively attached and fixed to one side surface of the two inclined plates 7. The multiple vertical plates 8 are evenly distributed between the two inclined plates 7. One end of the multiple horizontal plates 10 is fixedly connected to the top of the multiple vertical plates 8, and the two sides of the horizontal plates 10 are respectively fixedly connected to the inner sidewalls of the two inclined plates 7. The horizontal plates 10 and the vertical plates 8 are arranged perpendicular to each other. The inclined plates 7 are rectangular plates, and the horizontal plates 10 are square or rectangular plates. The two inclined plates 7 are attached to the two waist sides of the vertical plates 8 so that the inclination angles are consistent. The tops of the two inclined plates 7 protrude higher than the vertical plates 8, and the bottoms of the two inclined plates 7 are flush with the bottoms of the vertical plates 8. By setting the inclined platform 4 of this structure, not only is installation convenient, but it can also better withstand the force transmitted by the vibration isolation component 5.
[0036] like Figure 4-7 As shown, in some embodiments, the vertical plate 8 is fixed to the two inclined plates 7 by welding. The lower base of the vertical plate 8 is the long base of an isosceles trapezoid, and the lower base of the vertical plate 8 is provided with a bottom edge threaded hole 9. The upper connecting plate 1, the middle connecting plate 2, and the lower connecting plate 3 are provided with first bolt holes 15. The inclined platform 4 located on the upper connecting plate 1 is fixed by bolts connecting the bottom edge threaded hole 9 of the vertical plate 8 to the first bolt hole 15 of the upper connecting plate 1. The inclined platform 4 located on the middle connecting plate 2 is fixed by bolts connecting the bottom edge threaded hole 9 of the vertical plate 8 to the first bolt hole 15 of the middle connecting plate 2. The inclined platform 4 located on the lower connecting plate 3 is fixed by bolts connecting the bottom edge threaded hole 9 of the vertical plate 8 to the first bolt hole 15 of the lower connecting plate 3. By opening the bottom edge threaded hole 9 on the vertical plate 8, the entire inclined platform 4 can be fixed to the upper connecting plate 1, the middle connecting plate 2, or the lower connecting plate 3, which facilitates assembly.
[0037] In some embodiments, the sealing plate 12 is provided with connecting thread holes 16, and the inclined plate 7 is provided with second bolt holes 17. The vibration isolation component 5 located between the lower connecting plate 3 and the middle connecting plate 2 is connected to the connecting thread holes 16 of the sealing plate 12 and the second bolt holes 17 of the inclined plate 7 by bolts. Similarly, the vibration isolation component 5 located between the upper connecting plate 1 and the middle connecting plate 2 is connected to the connecting thread holes 16 of the sealing plate 12 and the second bolt holes 17 of the inclined plate 7 by bolts. By providing holes for mating bolts on the inclined plate 7 and the sealing plate 12, the two are connected and fixed, making installation convenient.
[0038] In some embodiments, one inclined platform 4 located on the upper connecting plate 1 is connected at both ends to one end of two inclined platforms 4 located on the lower connecting plate 3 via connectors 6, and the other inclined platform 4 located on the upper connecting plate 1 is connected at both ends to the other ends of two inclined platforms 4 located on the lower connecting plate 3 via connectors 6. The connectors 6 are connecting rods, both ends of which are provided with external threads. A third bolt hole 11 is provided on the horizontal plate 10. One end of the connecting rod is connected to the horizontal plate 10 located on the upper connecting plate 1 via a nut, and the other end of the connecting rod is connected to the horizontal plate 10 located on the lower connecting plate 3 via a nut. When the vibration isolation support needs to provide a compression preload function, some or all of the inclined platforms 4 have third bolt holes 11 provided on the horizontal plate 10 near their ends as preload holes, and the third bolt holes 11 on the horizontal plates 10 of the upper connecting plate 1 and the lower connecting plate 3 are aligned vertically. The connecting rod passes through the third bolt holes 11 of the upper connecting plate 1 and the lower connecting plate 3, respectively, and is secured to the corresponding horizontal plates 10 with multiple nuts. In this embodiment, the horizontal plate 10 on the middle connecting plate 2 can also have third bolt holes 11, and then third bolt holes 11 can also be made on the upper connecting plate 1. The connecting rod then passes through the third bolt holes 11 of the upper connecting plate 1 and the middle connecting plate 2, respectively, and is secured to the horizontal plates 10 of the upper connecting plate 1 and the middle connecting plate 2 with multiple nuts.
[0039] Before the vibration isolation bearing is installed in the structural vibration isolation layer, it undergoes vertical compression deformation through pre-compression. Then, the connecting rods, in conjunction with the third bolt holes 11, securely connect the horizontal plates 10 of the upper connecting plate 1 and the lower connecting plate 3, and the horizontal plates 10 of the upper connecting plate 1 and the middle connecting plate 2, achieving vertical pre-tightening constraint on the vibration isolation bearing. After the vibration isolation bearing is installed in the structural vibration isolation layer and the upper structure is capped, the pre-tightening constraint is released by removing all connecting rods. When the vibration isolation layer does not require horizontal vibration isolation, after the upper structure is capped, only the nut positions on the upper and lower sides of the horizontal plate 10 at one end of the connecting rod can be adjusted to disengage it from the upper and lower sides of the horizontal plate 10 while maintaining a certain distance, thereby releasing the pre-tightening constraint and providing a limiting function. The vibration isolation bearing can also be directly applied during construction without using connecting rods to apply pre-tightening constraints, completing the expected compression deformation during structural construction.
[0040] In some embodiments, the vibration-controlled inclined orthogonal combination vibration isolation support includes an upper connecting plate 1, a middle connecting plate 2, and a lower connecting plate 3. The upper connecting plate 1 has one more inclined platform 4 than the top of the middle connecting plate 2, and the lower connecting plate 3 has one more inclined platform 4 than the bottom of the middle connecting plate 2. The upper connecting plate 1 and the lower connecting plate 3 each have at least two inclined platforms 4, which is an example of the above embodiment where the number of inclined platforms 4 installed is at least six, and the vibration isolation components 5 are at least four. For example, three inclined platforms 4 are installed side-by-side on the upper connecting plate 1 and the lower connecting plate 3, and two inclined platforms 4 are installed side-by-side on the top of the middle connecting plate 2. Two inclined platforms 4 are installed side by side at the bottom, for a total of ten inclined platforms 4. According to the pattern summarized above, the number of inclined platforms 4 installed on the upper connecting plate 1 and the lower connecting plate 3 is the same. The distribution is such that the inclined platforms 4 of the upper connecting plate 1 and the inclined platforms 4 of the lower connecting plate 3 are perpendicular to each other, and the inclined platforms 4 at the top and bottom of the middle connecting plate 2 are perpendicular to each other. The inclined platforms 4 of the upper connecting plate 1 and the inclined platforms 4 of the middle connecting plate 2 are parallel. When the inclined platforms 4 of the middle connecting plate 2 are projected vertically, the top inclined platform 4 is located between two adjacent inclined platforms 4 of the upper connecting plate 1, and the bottom inclined platform 4 is located between two adjacent inclined platforms 4 of the lower connecting plate 3. The inclined platforms 4 of the lower connecting plate 3 and the inclined platforms 4 of the middle connecting plate 2 are parallel. Taking the above ten inclined platform bases 4 as an example, the number of vibration isolation components 5 is eight. Each inclined platform base 4 located in the middle connecting plate 2 is connected to the inclined platform base 4 of the upper connecting plate 1 and the lower connecting plate 3 through two vibration isolation components 5. Two adjacent inclined platform bases 4 in the upper connecting plate 1 are connected to one inclined platform base 4 of the middle connecting plate 2 through two vibration isolation components 5, and two adjacent inclined platform bases 4 in the lower connecting plate 3 are connected to one inclined platform base 4 of the middle connecting plate 2 through two vibration isolation components 5. The connection method is the same as that in the above embodiment, and will not be described in detail here.
[0041] In some embodiments, in order to reduce the overall weight of the vibration isolation support, the inclined platform 4 installed on the middle connecting plate 2 can retain only the vertical plate 8 of the inclined platform 4, and the sealing plate 12 of the vibration isolation component 5 is used as the inclined plate 7 and directly fixed to both sides of the vertical plate 8, thereby removing the inclined plate 7 of the inclined platform 4. In addition, the horizontal plate 10 of the inclined platform 4 installed on the middle connecting plate 2 can also be removed. When it is not necessary to adjust the prestress between it and the upper connecting plate 1 or the lower connecting plate 3, the horizontal plate 10 can be directly removed since there is no need to install the connecting rod.
[0042] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.
Claims
1. A vibration-controlled, obliquely placed orthogonal combined vibration isolation support, characterized in that: The system comprises an upper connecting plate, a middle connecting plate, and a lower connecting plate arranged sequentially from top to bottom. At least two parallel inclined platforms are installed at the bottom of the upper connecting plate, at least two parallel inclined platforms are installed at the top of the lower connecting plate, and at least one inclined platform is installed at both the top and bottom of the middle connecting plate. The two inclined platforms on the upper connecting plate are fixedly connected to the inclined platform at the top of the middle connecting plate via two vibration isolation components, and the two inclined platforms on the lower connecting plate are fixedly connected to the inclined platform at the bottom of the middle connecting plate via two vibration isolation components. The two vibration isolation components between the upper and middle connecting plates are parallel to each other, and the vibration isolation component between the upper and middle connecting plates is perpendicular to the vibration isolation component between the lower and middle connecting plates. Among them, the number of inclined platforms installed on the upper connecting plate is one more than the number of inclined platforms installed on the top of the middle connecting plate, and the number of inclined platforms installed on the lower connecting plate is one more than the number of inclined platforms installed on the bottom of the middle connecting plate. The two vibration isolation components located between the lower connecting plate and the middle connecting plate are inclined from the lower outer direction towards the center of the middle connecting plate, and the two vibration isolation components located between the upper connecting plate and the middle connecting plate are inclined from the center of the middle connecting plate outward and upward.
2. The vibration-controlled oblique orthogonal combined vibration isolation support according to claim 1, characterized in that: The inclined platform at the bottom of the upper connecting plate and the inclined platform at the top of the lower connecting plate are perpendicular to each other in the vertical projection direction. The inclined platform at the bottom of the upper connecting plate and the inclined platform at the top of the middle connecting plate are parallel to each other. The two inclined platforms at the top of the lower connecting plate are parallel to the inclined platforms at the bottom of the middle connecting plate. The two inclined platforms in the middle connecting plate are perpendicular to each other in the vertical projection direction. The upper connecting plate, the middle connecting plate and the lower connecting plate are equally spaced in the vertical direction. The two vibration isolation components between the lower connecting plate and the middle connecting plate are inclined from the lower outer direction towards the center of the middle connecting plate. The two vibration isolation components between the upper connecting plate and the middle connecting plate are inclined from the center of the middle connecting plate outward and upward.
3. The obliquely placed orthogonal combined vibration isolation support with dual vibration control according to claim 1, characterized in that: The vibration isolation components all include multiple steel plates, multiple rubber plates, and two sealing plates for connecting with the inclined platform. The multiple steel plates and multiple rubber plates are stacked alternately to form vibration isolation components. The two ends of the vibration isolation components are connected to the two sealing plates to form vibration isolation components. The connection method of the multiple steel plates and multiple rubber plates is an integral vulcanization connection, and the connection method of the vibration isolation components to the two sealing plates is an integral vulcanization connection.
4. A vibration-controlled oblique orthogonal combined vibration isolation support according to claim 3, characterized in that: The inclined platform includes two inclined plates, multiple vertical plates, and multiple horizontal plates. The inclined plates are used to connect with the sealing plate, and the vertical plates are used to connect the upper connecting plate, the middle connecting plate, or the lower connecting plate. The vertical plates are isosceles trapezoidal structures. The two sides of the vertical plates are respectively attached and fixed to one side of the two inclined plates. The multiple vertical plates are evenly distributed between the two inclined plates. One end of the multiple horizontal plates is fixedly connected to the top of the multiple vertical plates. The horizontal plates and the vertical plates are set perpendicular to each other.
5. A vibration-controlled, obliquely placed orthogonal combined vibration isolation support according to claim 4, characterized in that: The vertical plate is fixed to the two inclined plates by welding. The bottom edge of the vertical plate is the long bottom edge of an isosceles trapezoid. The bottom edge of the vertical plate is provided with a bottom edge threaded hole. The upper connecting plate, middle connecting plate and lower connecting plate are all provided with first bolt holes. The inclined platform is connected to the bottom edge threaded hole of the vertical plate by bolts.
6. A vibration-controlled oblique orthogonal combined vibration isolation support according to claim 4, characterized in that: The sealing plate has connecting thread holes, and the inclined plate has second bolt holes. The vibration isolation component is connected to the connecting thread holes of the sealing plate and the second bolt holes of the inclined plate by bolts.
7. A vibration-controlled oblique orthogonal combined vibration isolation support according to claim 4, characterized in that: One inclined platform located on the upper connecting plate has its two ends connected to one end of each of the two inclined platforms located on the lower connecting plate via connectors. The other inclined platform located on the upper connecting plate has its two ends connected to the other ends of each of the two inclined platforms located on the lower connecting plate via connectors.
8. A vibration-controlled, obliquely placed orthogonal combined vibration isolation support according to claim 7, characterized in that: The connector is a connecting rod, both ends of which are provided with external threads. A third bolt hole is provided on the horizontal plate. One end of the connecting rod is connected to the horizontal plate located on the upper connecting plate by a nut, and the other end of the connecting rod is connected to the horizontal plate located on the lower connecting plate by a nut.
Citation Information
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