Three-dimensional spring damping vibration isolator

Abstract

The utility model relates to a three-dimensional spring damping vibration isolator which is composed of an upper-layer vibration isolation system, a lower-layer vibration isolation system and connecting studs, and the upper-layer vibration isolation system is mainly composed of vertical springs and dampers. The lower-layer shock isolation system is mainly composed of a transverse spring, a spring mandrel, a spring baffle, a sliding structure, a sliding structure guide column, a sliding plate and a push plate. The push plate pushes the sliding structure, so that the sliding structure pushes the spring to displace, horizontal earthquake force borne by the upper structure is reduced, structural earthquake resistance is achieved, and the sliding structure can achieve the limiting function at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit facility technical field, concretely is a three -dimensional spring damping vibration isolator. BACKGROUND

[0002] With the acceleration of urbanization in recent years, the stability and the earthquake resistance of building structure seriously affect the safety of building use, in addition to this, the building is influenced by industrial vibration and urban rail transit vibration source more and more seriously.Especially with the continuous encryption of urban rail transit network, more and more buildings cannot avoid adjacent or cross rail transit line, the vertical vibration caused by rail transit and structure seismic problem are coupled, resulting in the simultaneous existence of the comfort problem of the personnel in the building, the use problem of precision instrument and the seismic safety problem of structure in high intensity area.In order to solve such problems, the vibration and earthquake double control product emerges as the times require.The vibration and earthquake double control product is a kind of three-dimensional vibration reduction and isolation technology, which combines vertical vibration isolation and horizontal vibration isolation module, and can realize the double control of vertical micro-vibration of structure and horizontal vibration caused by earthquake.In the vibration condition caused by subway traffic infrastructure operation, the vertical vibration isolation module can effectively reduce the vibration response of upper structure and secondary radiation noise by reducing the vertical natural frequency of upper structure and increasing the structure damping;and in the earthquake condition, the horizontal vibration isolation module can reduce the horizontal seismic force suffered by upper structure and reduce the seismic damage of structure.The vibration and earthquake double control technology is in the initial stage in China, and the commonly used ones at home and abroad at present are: three-dimensional rubber isolation bearing, laminated rubber isolation bearing, three-dimensional friction pendulum bearing, vibration isolation device and seismic isolation device and other combinations.

[0003] The various rubber bearings applied at present have relatively obvious effect on isolating horizontal vibration of earthquake, but have no obvious effect on vertical vibration.Effect of combined bearing is different in different application scenes, and the construction is relatively complex. CONTENT OF THE UTILITY MODEL

[0004] (I) technical problem solved

[0005] The utility model provides a three -dimensional spring damping vibration isolator, solves the problem in the above background technique.

[0006] (II) technical scheme

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a three -dimensional spring damping vibration isolator, including upper layer vibration isolation system (10) and lower layer shock insulation system (20), upper layer vibration isolation system (10) is set in the upper of lower layer shock insulation system (20), upper layer vibration isolation system (10) is used to provide vertical vibration isolation, upper layer vibration isolation system (10) includes top seat (11), base (12), a plurality of vertical springs (13) and damper (14), the upper end of each vertical spring (13) and damper (14) is connected with the bottom of top seat (11), the lower end of each vertical spring (13) and damper (14) is connected with the top of base (12), lower layer shock insulation system (20) is used to provide horizontal shock insulation, lower layer shock insulation system (20) includes a plurality of horizontal springs (21), a plurality of sliding structures (22), spring stop seat (24), support plate (26) and a plurality of push plate (27), spring stop seat (24) is fixedly connected in the center of support plate (26), and each side of spring stop seat (24) is connected and is provided with at least one horizontal spring (21), a plurality of horizontal springs (21) located in the same side are also connected with an adjacent sliding structure (22), the bottom of sliding structure (22) is slidably connected with support plate (26), a plurality of push plate (27) are fixedly connected in the bottom of base (12), and the top of each sliding structure (22) is formed with the step area (221) matched with push plate (27), so that the translational movement of push plate (27) towards spring stop seat (24) can use sliding structure (22) to push horizontal spring (21) to generate deformation.

[0008] Preferably, the lower layer shock insulation system (20) further comprises a number of spring cores (23) equal to the number of horizontal springs (21), each spring core (23) is arranged on the inner side of a horizontal spring (21), and the end of the spring core (23) towards the spring stop seat (24) is fixedly connected with the spring stop seat (24), the other end of the spring core (23) penetrates the adjacent sliding structure (22), the lower layer shock insulation system (20) further comprises a plurality of guide columns (25), each sliding structure (22) is penetrated by at least one guide column (25) and is slidably connected therewith, and the end of the guide column (25) towards the spring stop seat (24) is fixedly connected with the spring stop seat (24).

[0009] In further preferred, the outer edge of the support plate (26) is formed with a plurality of protrusions (261), each protrusion (261) cooperates with the adjacent sliding structure (22) to limit the range of movement, and the length of the spring core (23) and the guide column (25) is adapted to the spacing between the protrusion (261) and the side of the spring stop seat (24) towards the protrusion (261).

[0010] In a further preferred embodiment, the three-dimensional spring damping vibration isolator further comprises a plurality of studs (30), each of the plurality of studs (30) penetrating the lower vibration isolation system (20) and the upper vibration isolation system (10), and each of the studs (30) having a nut threadedly connected to each end of the stud (30), and the upper vibration isolation system (10) and the lower vibration isolation system (20) being fixed relative to each other after the studs (30) and the nuts are tightened.

[0011] (III) Advantages

[0012] Compared with the prior art, the three-dimensional spring damping vibration isolator has the following advantages:

[0013] 1. In the three-dimensional spring damping vibration isolator, the upper vibration isolation system is damped by springs and dampers, so that vertical micro-vibrations caused by rail transit and the like can be effectively controlled.

[0014] 2. In the three-dimensional spring damping vibration isolator, the lower vibration isolation system is isolated by multidirectional springs on a horizontal plane, so that the horizontal seismic force on the upper structure can be reduced, the structure can be seismically resistant, and good horizontal restoring force can be provided.

[0015] 3. The three-dimensional spring damping vibration isolator can also reduce the height of the vibration isolation system and improve reliability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a front view of the three-dimensional spring damping vibration isolator according to the embodiment in a transportation state;

[0017] Figure 2 is a front view of the upper vibration isolation system of the three-dimensional spring damping vibration isolator according to the embodiment in a use state;

[0018] Figure 3 is a front view of the lower vibration isolation system of the three-dimensional spring damping vibration isolator according to the embodiment in a use state;

[0019] Figure 4 is a top view of the lower vibration isolation system omitting the horizontal springs and the push plate.

[0020] In the drawings: 10, upper vibration isolation system; 11, top seat; 12, bottom seat; 13, vertical spring; 14, damper; 20, lower vibration isolation system; 21, horizontal spring; 22, sliding structure; 221, step area; 23, spring core shaft; 24, spring baffle; 25, guide column; 26, sliding plate; 27, push plate; 30, stud. DETAILED DESCRIPTION

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0022] Please refer to Figure 1 The three-dimensional spring damping vibration isolator can include an upper vibration isolation system (10), a lower vibration isolation system (20), and a plurality of stud bolts (30). The upper vibration isolation system (10) is arranged above the lower vibration isolation system (20), and the plurality of stud bolts (30) respectively penetrate the lower vibration isolation system (20) and the upper vibration isolation system (10). Both ends of the stud bolt (30) are sleeved with nuts which are threadedly connected therewith. After the stud bolt (30) and the nut are screwed, the upper vibration isolation system (10) and the lower vibration isolation system (20) are relatively fixed, so that the three-dimensional spring damping vibration isolator can keep the upper vibration isolation system (10) and the lower vibration isolation system (20) relatively stable during transportation, facilitating transportation. When installation and use are needed, the stud bolt (30) and the nut need to be disassembled, and after disassembly, the three-dimensional spring damping vibration isolator is used, the upper vibration isolation system (10) is used to provide vertical vibration isolation, and the lower vibration isolation system (20) is used to provide horizontal vibration isolation.

[0023] Please refer to Figure 2 The upper vibration isolation system (10) includes a top seat (11), a bottom seat (12), a plurality of vertical springs (13), and dampers (14). The upper end of each vertical spring (13) and damper (14) is connected with the bottom of the top seat (11), and the lower end of each vertical spring (13) and damper (14) is connected with the top of the bottom seat (12). The upper vibration isolation system (10) can realize effective control of vertical micro-vibration caused by rail transit and the like through the vertical spring (13) and the damper (14).

[0024] Please refer to Figure 3 and Figure 4The lower shock insulation system (20) can include a plurality of horizontal springs (21), a plurality of sliding structures (22), a plurality of spring shafts (23) in a number equal to that of the horizontal springs (21), a spring stopper (24), a plurality of guide columns (25), a supporting plate (26), and a plurality of push plates (27). The spring stopper (24) is fixedly connected to the center of the supporting plate (26), and at least one horizontal spring (21) is connected to each side of the spring stopper (24). A plurality of horizontal springs (21) on the same side are also connected to an adjacent sliding structure (22), and the bottom of the sliding structure (22) is slidingly connected to the supporting plate (26). Each spring shaft (23) is arranged on the inner side of a horizontal spring (21), and one end of the spring shaft (23) towards the spring stopper (24) is fixedly connected to the spring stopper (24), and the other end of the spring shaft (23) penetrates through the adjacent sliding structure (22), so that the spring shaft (23) can make the horizontal spring (21) move in the correct direction and prevent unnecessary deviation or deformation. Each sliding structure (22) is penetrated by at least one guide column (25) and is slidingly connected thereto, and one end of the guide column (25) towards the spring stopper (24) is fixedly connected to the spring stopper (24), so that the guide column (25) can guide the movement direction of the sliding structure (22). A plurality of push plates (27) are fixedly connected to the bottom of the base (12), and the top of each sliding structure (22) is formed with a stepped area (221) matched with the push plate (27), the push plate (27) is located at the stepped area (221), and the translation of the push plate (27) towards the spring stopper (24) can push the horizontal spring (21) to deform by the sliding structure (22), so that the horizontal springs (21) on the horizontal plane are used to reduce the horizontal seismic force borne by the upper structure, and the structural seismic resistance is achieved.

[0025] A plurality of protrusions (261) are formed at the outer edge of the supporting plate (26), and the lengths of the spring shaft (23) and the guide column (25) are matched with the spacing between the protrusions (261) and the side of the spring stopper (24) towards the protrusions (261), and each protrusion (261) cooperates with the adjacent sliding structure (22) to limit the activity range thereof, i.e., each sliding structure (22) can only move within the range between the adjacent protrusion (261) and the side of the spring stopper (24) towards the protrusion (261).

[0026] In the embodiment, the spring stopper (24) is square, and the horizontal springs (21) are connected to the four outer walls thereof.

[0027] With the promulgation of the new Noise Law, the implementation of the new specification standards such as Residential Design Specification GB50096-2019, Unified Standard for Civil Building Design GB50352-2019, Building Engineering Vibration and Shock Double Control Technology Standard, and Building Foundation Vibration Isolation Pad, people's requirements for building safety and quiet and livable life quality are getting higher and higher. The three-dimensional spring damping vibration isolator product can effectively reduce the structural vibration response and earthquake damage, and has a wide application prospect. In future infrastructure construction, the three-dimensional spring damping vibration isolator product will play an increasingly important role and provide a safer and more comfortable environment for people's life.

[0028] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection or other known connection mode, which will not be described one by one here. In the above, whenever there is a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A three-dimensional spring-damper vibration isolator, characterized by, The application relates to a vibration isolation system, which comprises an upper vibration isolation system (10) and a lower vibration isolation system (20), the upper vibration isolation system (10) is arranged above the lower vibration isolation system (20), the upper vibration isolation system (10) is used for providing vertical vibration isolation, and the lower vibration isolation system (20) is used for providing horizontal vibration isolation. The upper vibration isolation system (10) comprises a top base (11), a bottom base (12), a plurality of vertical springs (13) and dampers (14), the upper ends of the vertical springs (13) and the dampers (14) are connected to the bottom of the top base (11), and the lower ends of the vertical springs (13) and the dampers (14) are connected to the top of the bottom base (12). The lower vibration isolation system (20) comprises a plurality of horizontal springs (21), a plurality of sliding structures (22), a spring blocking base (24), a supporting plate (26) and a plurality of push plates (27), the spring blocking base (24) is fixedly connected to the center of the supporting plate (26), at least one horizontal spring (21) is arranged on each side of the spring blocking base (24), a plurality of horizontal springs (21) on the same side are connected to an adjacent sliding structure (22), the bottom of the sliding structure (22) is slidably connected to the supporting plate (26), a plurality of push plates (27) are fixedly connected to the bottom of the bottom base (12), the top of each sliding structure (22) is formed with a stepped area (221) matched with the push plate (27), and the translational movement of the push plate (27) towards the spring blocking base (24) can drive the horizontal spring (21) to deform by the sliding structure (22).

2. The three-dimensional spring-damper vibration isolator of claim 1, wherein: The lower vibration isolation system (20) further comprises spring shafts (23) equal in number to the horizontal springs (21), each spring shaft (23) is arranged on the inner side of a horizontal spring (21), one end of the spring shaft (23) towards the spring blocking base (24) is fixedly connected to the spring blocking base (24), and the other end of the spring shaft (23) penetrates through the adjacent sliding structure (22).

3. The three-dimensional spring-damper vibration isolator of claim 2, wherein: The lower vibration isolation system (20) further comprises a plurality of guide columns (25), each sliding structure (22) is penetrated by at least one guide column (25) and is slidably connected to the guide column (25), and one end of the guide column (25) towards the spring blocking base (24) is fixedly connected to the spring blocking base (24).

4. The three-dimensional spring-damper vibration isolator of claim 3, wherein: The outer edge of the supporting plate (26) is formed with a plurality of protrusions (261), each protrusion (261) limits the movement range of the adjacent sliding structure (22).

5. The three-dimensional spring-damper vibration isolator of claim 4, wherein: The lengths of the spring shaft (23) and the guide column (25) are matched with the distance between the protrusion (261) and the side of the spring blocking base (24) towards the protrusion (261).

6. The three-dimensional spring-damper vibration isolator according to any one of claims 1-5, characterized in that: A plurality of stud bolts (30) are arranged, the stud bolts (30) penetrate through the lower vibration isolation system (20) and the upper vibration isolation system (10), nuts are arranged on the two ends of the stud bolts (30) and are threadedly connected to the stud bolts (30), and the upper vibration isolation system (10) and the lower vibration isolation system (20) are fixedly connected after the stud bolts (30) and the nuts are screwed.

Images