Anti-microseismic support with vertical tension and compression balance

Abstract

The application discloses a kind of anti-microvibration support with vertical tension balance, including top connecting plate, middle disc, middle connecting plate, rubber support, tensile system component and bottom connecting plate, top connecting plate, middle disc, middle connecting plate and the upper end of rubber support are connected from top to bottom by bolt, the lower end of rubber support is connected with bottom connecting plate by bolt, a plurality of tensile system components are also provided between middle connecting plate and bottom connecting plate, tensile system component includes locking nut, screw rod, cylinder and disc spring, screw rod passes through middle connecting plate, the cylindrical end head of lower end of screw rod is slidably sleeved in cylinder, the upper end of screw rod is connected with locking nut, the lower end of cylinder is fixedly connected with bottom connecting plate, disc spring is provided in cylinder, disc spring is sleeved on screw rod, upper end abuts the upper wall of cylinder, lower end abuts the cylindrical end head of screw rod.The application makes support have stronger tensile capacity and restoring force.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of anti-microvibration support with vertical tension-compression balance. BACKGROUND

[0002] With the continuous development of urbanization process in our country, the vibration problem faced by urban building is more and more serious. Highway, railway, subway, light rail train, power machine equipment and other vibration sources will have environmental vibration influence on building structure. On the other hand, with the continuous development of science and technology, high-precision equipment is set in many buildings, and most of the equipment has corresponding demand for vibration in operation process. In summary, it is urgent to solve the problem of micro-vibration, therefore, the research of anti-microvibration support has great significance.

[0003] The vibration caused by these non-destructive vibration sources outside and inside the building reduces the service life of structure and equipment, and also brings discomfort to the personnel living and working in the affected building for a long time, and even affects health. Therefore, it is urgent to develop vibration reduction and isolation products to solve these vibration problems.

[0004] The existing vibration reduction and isolation support usually uses elastic unit such as air spring or uses spring and viscoelastic damper combination, the air spring itself does not have vibration reduction capacity, needs to be attached to air chamber to absorb part of vibration energy, plays a role in reducing vibration, and the air chamber basically has no effect in high frequency area; Spring and viscoelastic damper combination is usually complex in structure, high in cost, and these supports usually do not set independent tensile system, and cannot realize vertical tension-compression balance of vibration isolation support. To solve the above contradictions, it is necessary to develop an anti-microvibration support with vertical tension-compression balance, which has good vibration reduction and isolation performance under horizontal and vertical vibration load. SUMMARY

[0005] The present application aims to provide an anti-microvibration support with vertical tension-compression balance, by innovatively adding tensile system components to the existing ordinary rubber support, so that the support has stronger tensile capacity and restoring force.

[0006] The purpose of the present application can be achieved by the following technical solutions:

[0007] The anti-microvibration support with vertical tension and compression balance comprises a top connecting plate, a middle disc, a middle connecting plate, a rubber support, a tension resisting system assembly and a bottom connecting plate, the top connecting plate, the middle disc, the middle connecting plate and the upper end of the rubber support are connected by bolts from top to bottom, the lower end of the rubber support is connected with the bottom connecting plate by a bolt, a plurality of tension resisting system assemblies are arranged between the middle connecting plate and the bottom connecting plate and surround the rubber support, the tension resisting system assembly comprises a locking nut, a screw rod, a cylinder and a disc spring, the screw rod passes through the mounting hole of the middle connecting plate, the cylindrical end of the lower end of the screw rod is sleeved in the cylinder, the upper end of the screw rod is connected with the locking nut above the middle connecting plate, the lower end of the cylinder is fixedly connected with the bottom connecting plate, the disc spring is arranged in the cylinder and sleeved on the screw rod, the upper end of the disc spring abuts against the upper wall of the cylinder and the lower end abuts against the cylindrical end of the screw rod.

[0008] The application also has the following preferred design:

[0009] The top connecting plate, the middle disc, the middle connecting plate and the bottom connecting plate are provided with a plurality of bolt connection holes which are in corresponding positions and are distributed in a circular ring shape.

[0010] The support is provided with four tension resisting system assemblies, the middle connecting plate is provided with four mounting holes which are distributed in a square shape, and the diameter of the mounting hole is greater than the diameter of the screw rod.

[0011] The top connecting plate is also provided with two lifting holes which are located outside the bolt connection holes of the top connecting plate and are used for lifting the support.

[0012] The disc spring is a superimposed combination structure, and the rubber support is a laminated rubber support.

[0013] The top connecting plate and the bottom connecting plate are connected with an external application vibration isolation structure.

[0014] The edge of the cylindrical end of the lower end of the screw rod close to the bottom connecting plate is provided with a 45-degree chamfer, the lower end edge of the cylinder is provided with a 45-degree chamfer, the lower surface edge of the bottom connecting plate is provided with a 45-degree chamfer, and the edges of the upper end surface and the lower end surface of the locking nut are provided with 45-degree chamfers.

[0015] The application has the following beneficial effects:

[0016] 1. The present application combines the like rubber support and the tensile resistance system component containing the disc spring in parallel to form the anti-micro-vibration support. Compared with the prior art anti-micro-vibration support, no other damping unit is added, the structure is simple, and the cost is low. Under the action of the vibration load, the anti-micro-vibration support in the horizontal direction passes through the characteristics of the ordinary laminated rubber support which is formed by alternately laminating thin steel plates and thin rubber plates and vulcanizing under high temperature and high pressure, has large vertical stiffness and bearing capacity, can greatly reduce the horizontal stiffness, can significantly reduce the natural frequency of the structure, prolong the structure period, and block the transmission of the horizontal vibration response from the foundation to the upper structure; in the vertical direction, the disc spring has the characteristics, the disc spring has strong shock absorption capacity, can bear large load with small deformation, for the vertical vibration load, the cylinder limits the horizontal shear deformation of the disc spring, the disc spring occurs vertical compression deformation, the horizontal stiffness of the disc spring group is much larger than the vertical stiffness, and the disc spring can have good vibration isolation effect on the vertical vibration load. The anti-micro-vibration support has good effect on blocking the influence of the horizontal and vertical vibration load on the upper structure.

[0017] 2. Due to the special design of the tensile resistance system component, the whole anti-micro-vibration support has good tensile resistance, and the tensile resistance system well compensates for the disadvantage of vertical tension and compression imbalance of the laminated rubber support. Meanwhile, the position of the tensile resistance system in the anti-micro-vibration support is at the four corners of the periphery of the laminated rubber support, so that the anti-micro-vibration support is more uniform in stress when bearing the vibration load, and because the four square distributed mounting hole diameters of the middle connecting plate are larger than the screw hole diameters, the phenomenon of stress concentration and damage of the screw in the tensile resistance system is avoided to a great extent when bearing the horizontal micro-vibration load, so that the stability and safety of the whole upper structure are ensured.

[0018] 3. The disc spring in the tensile resistance system component can provide better restoring force and isolation of the vertical vibration response to the upper structure for the anti-micro-vibration support, and by adjusting the disc spring model, the laminated and opposite combination mode and the number of pieces, the disc spring has suitable vertical stiffness and damping performance, and the vibration reduction and isolation performance is increased. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective view of the anti-micro-vibration support of the present application;

[0020] Figure 2 is a sectional view of the anti-micro-vibration support of the present application;

[0021] Figure 3 is a schematic view of the tensile resistance system component in the anti-micro-vibration support of the present application;

[0022] Figure 4 is Figure 3 a sectional view of the tensile resistance system component in the anti-micro-vibration support of the present application;

[0023] Figure 5 is a perspective view of the top connecting plate, the middle disc, the middle connecting plate and the bottom connecting plate of the present application.

[0024] Legend: 1-top connecting plate, 1a-lifting hole, 2-middle disc, 3-middle connecting plate, 4-tension system assembly, 5-bottom connecting plate, 6-rubber support, 7-locking nut, 8-screw rod, 8a-cylindrical end, 9-cylinder, 10-disc spring, 11-bolt hole. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be described in detail below in combination with the drawings and examples, so that the technical solutions of the present application can be better understood and implemented by those skilled in the art.

[0026] As shown in Figure 1 and Figure 5 , a micro-vibration isolation support with vertical tension and compression balance comprises a top connecting plate 1, a middle disc 2, a middle connecting plate 3, a rubber support 6, a tension system assembly 4 and a bottom connecting plate 5, the upper ends of the top connecting plate 1, the middle disc 2, the middle connecting plate 3 and the rubber support 6 are bolted from top to bottom, the lower end of the rubber support 6 is bolted with the bottom connecting plate 5, and a plurality of tension system assemblies 4 distributed around the rubber support 6 are further arranged between the middle connecting plate 3 and the bottom connecting plate 5, the tension system assembly 4 comprises a locking nut 7 (also known as a union cap), a screw rod 8, a cylinder 9 and a disc spring 10, the screw rod 8 passes through the mounting hole of the middle connecting plate 3, the cylindrical end 8a at the lower end of the screw rod 8 is slidably sleeved in the cylinder 9, the upper end of the screw rod 8 is connected with the locking nut 7 above the middle connecting plate 3, the lower end of the cylinder 9 is fixedly connected with the bottom connecting plate 5, the disc spring 10 is arranged in the cylinder 9, the disc spring 10 is sleeved on the screw rod 8, the upper end of the disc spring 10 abuts against the upper wall of the cylinder 9, and the lower end of the disc spring 10 abuts against the cylindrical end 8a of the screw rod 8.

[0027] The top connecting plate 1 and the bottom connecting plate 5 are used to connect with the external application vibration isolation structure. As a preferred embodiment, the inner diameter of the cylinder 9 is slightly larger than the diameters of the disc spring 10 and the cylindrical end 8a at the lower end of the screw rod 8. The top connecting plate 1, the middle disc 2, the middle connecting plate 3 and the bottom connecting plate 5 are all provided with a plurality of bolt holes 11 corresponding in position and distributed in a circular ring shape.

[0028] In this embodiment, the support is square, and the top connecting plate 1, the middle connecting plate 3 and the bottom connecting plate 5 are all designed as square.

[0029] The support is provided with four tensile system components 4, the middle connecting plate 3 is provided with four mounting holes in a square distribution, the diameter of the mounting hole is slightly larger than the diameter of the screw rod 8. The tensile system component 4 is arranged at four corners of the periphery of the rubber support 6, and the anti-micro-vibration support is more uniform in stress when bearing the vibration load.

[0030] The top connecting plate 1 is also provided with two lifting holes 1a located outside the bolt connecting hole 11 of the top connecting plate 1 for lifting of the support.

[0031] The disc spring 10 is a superimposed combined structure, and the rubber support 6 is a laminated rubber support, and the disc spring 10 and the rubber support 6 are existing products, which are not described herein.

[0032] The cylindrical end 8a at the lower end of the screw rod 8 is provided with a 45-degree chamfer close to one side edge of the bottom connecting plate 5, the lower end edge of the cylinder 9 is provided with a 45-degree chamfer, the lower surface edge of the bottom connecting plate 5 is provided with a 45-degree chamfer, and the upper end surface and the lower end surface of the locking nut 7 are provided with a 45-degree chamfer.

[0033] Compared with other vibration isolation supports, the anti-micro-vibration support of the application adds a unique tensile system component 4, and the ordinary laminated rubber support is used to give the anti-micro-vibration support sufficient vertical bearing capacity, so as to ensure the stability of the upper structure, the tensile system component 4 gives the ordinary laminated rubber support tensile capacity and overturning resistance, so as to ensure the safety of the anti-micro-vibration support. Under the action of vibration, the smaller horizontal stiffness of the ordinary laminated rubber support can attenuate the transmission of horizontal vibration to the upper structure, and the disc spring 10 in the tensile system component 4 can attenuate the transmission of vertical vibration to the upper structure. The disc spring 10 can also give the vibration isolation support a certain restoring force after compression or stretching under vertical vibration load. In summary, the anti-micro-vibration support of the application has good bearing capacity, restoring force and effect of horizontal and vertical vibration reduction and isolation.

[0034] The above embodiment is only a preferred embodiment of the application, but cannot be regarded as a limitation of the application, and any modification and improvement based on the concept of the application shall fall within the protection scope of the application, and the specific protection scope shall be subject to the claims.

Claims

1. A microseismic isolation bearing having vertical tension-compression balance, comprising a rubber bearing, the rubber bearing being a laminated rubber bearing in which thin steel plates and thin rubber plates are alternately laminated, characterized in that, The top connecting plate, the middle disc, the middle connecting plate and the bottom connecting plate are bolted from top to bottom, the lower end of the rubber support is bolted with the bottom connecting plate, a plurality of tension system components are arranged between the middle connecting plate and the bottom connecting plate and surround the rubber support, the tension system component comprises a locking nut, a screw rod, a cylinder and a disc spring, the screw rod passes through the mounting hole of the middle connecting plate, the lower end of the screw rod is sleeved in the cylinder, the upper end of the screw rod is connected with the locking nut above the middle connecting plate, the lower end of the cylinder is fixedly connected with the bottom connecting plate, the cylinder is internally provided with the disc spring, the disc spring is sleeved on the screw rod, the upper end of the disc spring abuts against the upper wall of the cylinder, and the lower end of the disc spring abuts against the cylindrical end head of the screw rod.

2. The microseismic isolation bearing with vertical tension-compression balance according to claim 1, characterized in that: The top connecting plate, the middle disc, the middle connecting plate and the bottom connecting plate are bolted from top to bottom, the lower end of the rubber support is bolted with the bottom connecting plate, a plurality of tension system components are arranged between the middle connecting plate and the bottom connecting plate and surround the rubber support, the tension system component comprises a locking nut, a screw rod, a cylinder and a disc spring, the screw rod passes through the mounting hole of the middle connecting plate, the lower end of the screw rod is sleeved in the cylinder, the upper end of the screw rod is connected with the locking nut above the middle connecting plate, the lower end of the cylinder is fixedly connected with the bottom connecting plate, the cylinder is internally provided with the disc spring, the disc spring is sleeved on the screw rod, the upper end of the disc spring abuts against the upper wall of the cylinder, and the lower end of the disc spring abuts against the cylindrical end head of the screw rod.

3. The microseismic isolation bearing with vertical tension-compression balance according to claim 2, characterized in that: The top connecting plate, the middle disc, the middle connecting plate and the bottom connecting plate are bolted from top to bottom, the lower end of the rubber support is bolted with the bottom connecting plate, a plurality of tension system components are arranged between the middle connecting plate and the bottom connecting plate and surround the rubber support, the tension system component comprises a locking nut, a screw rod, a cylinder and a disc spring, the screw rod passes through the mounting hole of the middle connecting plate, the lower end of the screw rod is sleeved in the cylinder, the upper end of the screw rod is connected with the locking nut above the middle connecting plate, the lower end of the cylinder is fixedly connected with the bottom connecting plate, the cylinder is internally provided with the disc spring, the disc spring is sleeved on the screw rod, the upper end of the disc spring abuts against the upper wall of the cylinder, and the lower end of the disc spring abuts against the cylindrical end head of the screw rod.

4. The microseismic isolation bearing with vertical tension-compression balance according to claim 3, characterized in that: The top connecting plate, the middle disc, the middle connecting plate and the bottom connecting plate are bolted from top to bottom, the lower end of the rubber support is bolted with the bottom connecting plate, a plurality of tension system components are arranged between the middle connecting plate and the bottom connecting plate and surround the rubber support, the tension system component comprises a locking nut, a screw rod, a cylinder and a disc spring, the screw rod passes through the mounting hole of the middle connecting plate, the lower end of the screw rod is sleeved in the cylinder, the upper end of the screw rod is connected with the locking nut above the middle connecting plate, the lower end of the cylinder is fixedly connected with the bottom connecting plate, the cylinder is internally provided with the disc spring, the disc spring is sleeved on the screw rod, the upper end of the disc spring abuts against the upper wall of the cylinder, and the lower end of the disc spring abuts against the cylindrical end head of the screw rod.

5. The microseismic isolation support with vertical tension-compression balance according to any one of claims 1 to 4, characterized in that: The top connecting plate, the middle disc, the middle connecting plate and the bottom connecting plate are bolted from top to bottom, the lower end of the rubber support is bolted with the bottom connecting plate, a plurality of tension system components are arranged between the middle connecting plate and the bottom connecting plate and surround the rubber support, the tension system component comprises a locking nut, a screw rod, a cylinder and a disc spring, the screw rod passes through the mounting hole of the middle connecting plate, the lower end of the screw rod is sleeved in the cylinder, the upper end of the screw rod is connected with the locking nut above the middle connecting plate, the lower end of the cylinder is fixedly connected with the bottom connecting plate, the cylinder is internally provided with the disc spring, the disc spring is sleeved on the screw rod, the upper end of the disc spring abuts against the upper wall of the cylinder, and the lower end of the disc spring abuts against the cylindrical end head of the screw rod.

6. The microseismic isolation bearing with vertical tensile-compressive balance according to claim 5, characterized in that: ​ 7. The microseismic isolation bearing with vertical tensile-compressive balance according to claim 6, characterized in that: ​

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