A damping-adjustable elastic tuning track isolation device and an isolation method

Abstract

The application discloses a damping-adjustable elastic tuning track isolation device and a damping-adjustable elastic tuning track isolation method in the technical field of data cabinet shock isolation, wherein the two damping active control components of the shock isolation device each comprise a damping oil circuit, an adjusting valve body and a damping piston rod, the adjusting valve body is arranged on the damping oil circuit, the adjusting valve body can change the flow passage area of the damping oil, and the damping piston rod penetrates through the damping oil circuit and is in sealing connection with the inner wall of the damping oil circuit; in the first damping active control component, when the bottom plate assembly drives the damping piston rod to reciprocate in the first direction, the damping oil flows in the damping oil circuit; and in the second damping active control component, when the bottom plate assembly drives the damping oil circuit to reciprocate in the second direction, the damping oil flows in the damping oil circuit. The application increases the active shock isolation structure, so that the active shock isolation structure can adapt to different seismic environments and make corresponding shock isolation adjustment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data cabinet shock isolation, in particular to a damping-adjustable elastic tuning track shock isolation device and a shock isolation method. BACKGROUND

[0002] Earthquake damage is a very strong sudden natural disaster, which leads to communication interruption, data loss and other problems. In order to avoid the influence of earthquake on equipment such as cabinet, it is necessary to install shock isolation device or shock absorption device on the equipment. The vibration reduction technology mainly absorbs the vibration energy of the structure through high-precision air damping spring, so as to reduce the vertical energy transmitted to the data cabinet floating support. The shock isolation technology is to form a shock isolation layer by arranging a shock isolation device between the foundation and the upper structure, and to isolate or dissipate the seismic energy to reduce the transmission of seismic energy to the upper structure, so as to reduce the seismic response of the upper structure and improve the seismic performance, such as lead rubber shock isolation bearing, friction pendulum shock isolation bearing, etc. In addition, the seismic energy is huge and the frequency is low, which requires smaller stiffness of the data cabinet shock isolation layer, and higher requirements for the arrangement mode and stability of the shock isolation device, and the existing laminated rubber shock isolation technology cannot be applied to such light structures.

[0003] At present, in order to avoid the damage of earthquake disaster to data and communication cabinet, the traditional cabinet anti-seismic design mainly adopts the method of increasing the stiffness of components and the strength of equipment itself, so that the structure can withstand a large earthquake acceleration to prevent the structure from being damaged. This method can generally ensure that the cabinet fixed on the floor does not fall down, but the equipment in the cabinet will bear a larger seismic response acceleration, which will cause the deformation of the cabinet and the failure of the internal electronic devices. For large engineering structures such as building structures and long-span bridges, shock isolation technologies such as lead rubber shock isolation bearing and friction pendulum shock isolation bearing have been widely used on them, but the overall weight of data cabinet (including internal equipment) is light, the foundation size is small, and the stiffness of the shock isolation layer is required to be smaller, and the arrangement mode and stability of the shock isolation device are required to be higher, so that the existing laminated rubber shock isolation technology cannot be applied to such light structures.

[0004] In addition, the existing shock isolation device can only consume seismic energy by using elastic damping force, but the energy size and direction of seismic wave at the installation position of the cabinet are different, and how to adjust the shock isolation according to the seismic wave environment of different cabinets is an important research direction. SUMMARY

[0005] In order to overcome the shortcomings of the existing technology, the present application provides a damping-adjustable elastic tuning track shock isolation device and a shock isolation method.

[0006] The technical scheme of the present application is as follows:

[0007] The application discloses a damping-adjustable elastic tuning track isolation device, which comprises a bottom plate assembly connected with a base, a top plate assembly connected with a cabinet, and an isolation assembly arranged between the bottom plate assembly and the top plate assembly.

[0008] The first damping active control assembly and the second damping active control assembly each comprise a damping oil circuit filled with damping oil, an adjusting valve body and a damping piston rod, the adjusting valve body is arranged on the damping oil circuit and connected with an adjusting motor, so that the adjusting valve body changes the flow passage area of the damping oil under the driving of the adjusting motor, and the damping piston rod penetrates through the damping oil circuit and is in sealing connection with the inner wall of the damping oil circuit.

[0009] In the first damping active control assembly, the damping piston rod is connected with the bottom plate assembly, and the damping oil circuit is connected with the top plate assembly, so that when the bottom plate assembly drives the damping piston rod to reciprocate in a first direction, the damping oil flows in the damping oil circuit.

[0010] In the second damping active control assembly, the damping oil circuit is connected with the bottom plate assembly, and the damping piston rod is connected with the top plate assembly, so that when the bottom plate assembly drives the damping oil circuit to reciprocate in a second direction, the damping oil flows in the damping oil circuit.

[0011] According to the application, the isolation assembly further comprises a plurality of sensors, the adjusting motor and the plurality of sensors are connected with a controller, so that the controller controls the adjusting motor to change the rotation angle of the adjusting valve body after receiving the signals of the plurality of sensors.

[0012] According to the application, in the damping oil circuit, the two ends of a piston sleeve are connected with two open ends of the adjusting valve through corner sleeve, the damping piston rod penetrates through the piston sleeve and is in sealing connection with the inner wall of the piston sleeve, so that when the damping piston rod slides relative to the piston sleeve, the damping oil in the damping oil circuit is driven to flow.

[0013] Further, the adjusting valve body is cylindrical, the adjusting valve seat is internally provided with an accommodating cavity for accommodating the adjusting valve body, the adjusting valve seat is externally provided with a pipe hole, the adjusting valve body is externally provided with a rotating hole, and the central axis of the rotating hole and the central axis of the pipe hole are both perpendicular to the central axis of the adjusting valve body; when the central axis of the rotating hole coincides with the central axis of the pipe hole, the flow cross-sectional area of the damping oil in the damping oil circuit is the largest; when the central axis of the rotating hole is perpendicular to the central axis of the pipe hole, the flow cross-sectional area of the damping oil in the damping oil circuit is the smallest.

[0014] According to the scheme, the shock isolation assembly further comprises a passive shock isolation assembly, which comprises a middle frame, a plurality of first damping pulleys and a plurality of second damping pulleys mounted on the middle frame, a lower tuning track mounted on the upper side of the bottom plate assembly, and an upper tuning track mounted on the lower side of the top plate assembly.

[0015] The central axis of the first damping pulley is perpendicular to the central axis of the second damping pulley.

[0016] The bottom of the first damping pulley protrudes from the middle frame and abuts against the upper surface of the lower tuning track, and the top of the second damping pulley protrudes from the middle frame and abuts against the lower surface of the upper tuning track, so that the first damping pulley and the second damping pulley consume seismic energy through damping force during rotation.

[0017] Further, the upper surface of the lower tuning track and the lower surface of the upper tuning track are both arc surfaces with consistent curvatures.

[0018] Alternatively, the upper surface of the lower tuning track and the lower surface of the upper tuning track are both formed by a plurality of arc surfaces with different curvatures connected in sequence.

[0019] Further, the passive shock isolation assembly further comprises two anti-tilting members arranged on opposite sides in the second direction, the upper end of the anti-tilting member is fixedly connected to the top plate assembly, and the lower end of the anti-tilting member is clamped to the middle frame, so that the anti-tilting member slides along the middle frame in the first direction under the driving of the top plate assembly.

[0020] Further, the first damping pulley and the second damping pulley both comprise a central shaft and a pulley member, the central shaft is fixed to the middle frame, the pulley member is sleeved on the central shaft, and a damping friction member is arranged between the pulley member and the central shaft, and the damping friction force between the damping friction member and the pulley member is used to consume seismic energy.

[0021] In another aspect, a damping-adjustable elastic tuning track isolation device is provided, which comprises a top plate assembly, a bottom plate assembly, a passive isolation assembly, a damping active control assembly and a damping-adjustable elastic tuning track assembly.

[0022] S1, detecting the acceleration during the earthquake through a plurality of sensors and sending the detection result to a controller;

[0023] S2, determining the direction and acceleration of the seismic wave during the earthquake by the controller, and simulating the movement state of the damping oil circuit and the adjusting valve body in the damping-adjustable elastic tuning track isolation device by using the hyperbolic tangent model, and determining the rotation angle of the adjusting valve body;

[0024] S3, driving the adjusting motor to move and rotate the adjusting valve body to the required angle based on the calculated rotation angle of the adjusting valve body, so as to change the flow area of the damping oil in the damping oil circuit, and actively consume the seismic wave energy by the flow of the damping oil in the damping oil circuit.

[0025] According to the above-mentioned scheme, the damping-adjustable elastic tuning track isolation device further passively consumes seismic wave energy during the earthquake:

[0026] When the top plate assembly moves relative to the bottom plate assembly in the first direction and / or the second direction, the middle frame in the damping-adjustable elastic tuning track isolation device passively consumes seismic wave energy through the damping friction between the first damping pulley and the lower tuning track and / or the damping friction between the second damping pulley and the upper tuning track;

[0027] At the same time, the damping friction between the pulley part and the center shaft when the first damping pulley and / or the second damping pulley rotates passively consumes seismic wave energy.

[0028] According to the above-mentioned scheme, the damping-adjustable elastic tuning track isolation device has the following advantages:

[0029] The application forms the middle frame by sequentially connecting the four connecting rods in the head-to-tail mode, and abuts the four first damping pulleys with the four upper tuning tracks and the four second damping pulleys with the four lower tuning tracks, realizes the movement in any direction between the top plate assembly and the bottom plate assembly, and is beneficial to form the structure of elastically damping and passively consuming the seismic wave energy through the damping contact between each damping pulley and the corresponding adjusting track and the damping connection between the internal pulley of each damping pulley and the central shaft; in addition, the design of the arc contact surface of each tuning track in the application can convert the seismic force into kinetic energy and gravitational potential energy, and perform hysteresis energy dissipation through friction in the pulley sliding process, and can also provide the force for restoring the isolation device to the original position after the earthquake.

[0030] The application can be adjusted according to different earthquakes to increase the adaptability of the isolation device by setting two damping oil circuits and controlling the flow area of the damping oil circuit through the corresponding adjusting motor and adjusting valve body; at the same time, the active isolation device and the passive isolation device are matched with each other, which can further increase the damping isolation effect of the movement while increasing the active adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the application;

[0032] Figure 2 It is an exploded view of the application;

[0033] Figure 3 It is a schematic diagram of the application after removing the bottom plate assembly and the top plate assembly;

[0034] Figure 4 It is a schematic diagram of the passive isolation assembly and the damping active control assembly of the application;

[0035] Figure 5 It is an exploded view of Figure 4 ;

[0036] Figure 6 It is a schematic diagram of the pulley set position in the application;

[0037] Figure 7 It is a structural exploded view of the pulley set position in the application;

[0038] Figure 8 It is a structural exploded view of the first damping pulley in the application;

[0039] Figure 9 It is a schematic diagram of the first lower tuning track in the application;

[0040] Figure 10 It is a schematic diagram of the first upper tuning track in the application;

[0041] Figure 11 Figure 1 is a schematic diagram of the passive isolation component connected to the damping active control component in the present application;

[0042] Figure 12 Figure 2 is a schematic diagram of the first damping active control component connected to the pulley connecting rod in the present application;

[0043] Figure 13 Figure 3 is a sectional view of the first damping active control component connected to the pulley connecting rod in the present application;

[0044] Figure 14 Figure 4 is a schematic diagram of the second damping active control component connected to the sliding pair rod in the present application;

[0045] Figure 15 Figure 5 is a sectional view of the second damping active control component connected to the sliding pair rod in the present application.

[0046] In the drawings, various drawing reference numbers are:

[0047] 101, bottom plate; 102, top plate; 110, bottom plate assembly; 111, lower support plate; 120, top plate assembly; 121, upper support plate;

[0048] 200, passive isolation component;

[0049] 210, pulley connecting rod; 211, first pulley connecting rod; 2111, first pulley support; 2112, pulley slot; 2113, pulley support; 212, second pulley connecting rod; 2121, second pulley support;

[0050] 220, sliding pair rod; 221, first sliding pair rod; 2211, first pair rod sliding slot; 222, second sliding pair rod; 2221, second pair rod sliding slot;

[0051] 230, pulley set; 231, first damping pulley; 2311, central shaft; 2312, damping friction piece; 23121, opening; 2313, pulley piece; 2314, gasket; 2315, fastener; 232, second damping pulley;

[0052] 240, anti-tilt slider; 241, first anti-tilt piece; 2411, first anti-tilt slider; 242, second anti-tilt piece; 2421, second anti-tilt slider;

[0053] 251, first lower tuning track; 2511, lower track camber surface; 252, second lower tuning track; 253, third lower tuning track; 254, fourth lower tuning track;

[0054] 261, first upper tuning track; 2311, upper track camber surface; 262, second upper tuning track; 263, third upper tuning track; 264, fourth upper tuning track;

[0055] 300, damping active control assembly;

[0056] 311, first support seat; 3111, first support sliding block; 312, first damping sliding block; 313, first damping piston rod; 3131, first piston baffle; 3132, first sealing ring; 314, first connecting piece; 315, first piston sleeve; 316, first corner sleeve; 317, first adjusting valve seat; 3171, first bearing; 318, first adjusting motor; 3181, first adjusting valve body; 319, first connecting plate;

[0057] 321, second support seat; 322, second damping piston rod; 3221, second piston baffle; 3222, second sealing ring; 323, second connecting piece; 324, second piston sleeve; 325, second corner sleeve; 326, second corner sleeve; 3261, second bearing; 327, second adjusting motor; 3271, second adjusting valve body; 328, second connecting plate. DETAILED DESCRIPTION

[0058] The application will be further described below in conjunction with the drawings and embodiments:

[0059] As Figures 1 to 15 shown, in order to solve the defects that the existing isolation device can only passively consume the seismic wave energy by using elastic restoring force, gravity component restoring force and the like when the earthquake occurs, and cannot adjust the consumption capacity to adapt to different degrees of earthquakes, the application provides a damping-adjustable elastic tuning track isolation device, which can detect the direction and acceleration size of the seismic energy, adjust the damping size in a targeted manner, and thus effectively consume the seismic energy and ensure the safety of the equipment above the isolation device.

[0060] The damping-adjustable elastic tuning track isolation device is used for the isolation of data cabinets and precision instruments in high-tech, finance, communication, military, energy, cultural relics and government fields, and includes a rack part and a motion damping part. The rack part is mainly used for the installation and support of the cabinet, and the motion damping part can be used for seismic wave energy consumption and can support the cabinet.

[0061] I. Rack part

[0062] As Figures 1 to 3 shown, the rack part includes a bottom plate assembly 110 and a top plate assembly 120. The bottom plate 101 in the bottom plate assembly 110 is connected with a base, and is used for fixing the cabinet. The top plate 102 in the top plate assembly 120 is connected with the cabinet, and is used for realizing the motion buffering of the cabinet through the relative motion between the bottom plate assembly 110.

[0063] The bottom plate assembly 110 is further provided with a lower support plate 111, through which the bottom plate assembly 110 and the motion damping part are connected; the underside of the top plate assembly 120 is provided with an upper support plate 121, through which the top plate assembly 120 and the motion damping part are connected. The lower support plate 111 in the application includes two parallel and spaced-apart plates, and the upper support plate 121 also includes two parallel and spaced-apart plates, and the extension direction of the upper support plate 121 is perpendicular to the extension direction of the lower support plate 111, and through the orthogonal arrangement, it can be ensured that when the top plate assembly 120 and the cabinet move in any direction, they can be decomposed into the two perpendicular directions, and the center of gravity of the cabinet is known to be within the support range of the entire isolation device; in addition, the spaced-apart arrangement of the lower support plate 111 and the spaced-apart arrangement of the upper support plate 121 can provide space for the installation and movement of the motion damping part.

[0064] II. Motion damping part

[0065] As shown in Figures 2 to 15 , the motion damping part includes an isolation assembly, which is located between the top plate assembly 120 and the bottom plate assembly 110 and connects the top plate assembly 120 and the bottom plate assembly 110, and can realize the relative movement and support between the top plate assembly 120 and the bottom plate assembly 110. The isolation assembly includes a passive isolation assembly 200 and a damping active control assembly 300, wherein the passive isolation assembly 200 is used to passively consume the seismic wave energy by using elastic damping when the cabinet and other equipment are affected by the seismic wave energy and move during an earthquake, so as to reduce the impact of the seismic wave energy on the cabinet; the damping active control assembly 300 is used to actively adjust the size of the liquid damping based on the size and direction of the seismic wave energy during an earthquake, and then actively isolate on the basis of passive isolation to protect the cabinet from being damaged in the earthquake.

[0066] 1. Passive isolation assembly

[0067] As shown in Figures 2 to 10 , the passive isolation assembly 200 in the application includes a middle frame, a plurality of pulley sets installed on the middle frame, a lower tuning track installed on the upper side of the bottom plate assembly 110, and an upper tuning track installed on the lower side of the top plate assembly 120. The middle frame is connected with the top plate assembly 120 and the bottom plate assembly 110 through the pulley sets, and can realize the relative movement between the middle frame (the bottom plate assembly 110) and the top plate assembly 120 in the first direction (the X-axis direction in the figure, the same below), and the relative movement between the bottom plate assembly 110 and the middle frame in the second direction (the Y-axis direction in the figure, the same below), and then the displacement between the cabinet and the base station in any horizontal direction during an earthquake.

[0068] The middle frame is a hollow frame structure, which comprises four connecting rods connected in sequence, specifically comprising two opposite and spaced pulley connecting rods 210 (first pulley connecting rod 211, second pulley connecting rod 212), two opposite and spaced sliding auxiliary rods 220 (first sliding auxiliary rod 221, second sliding auxiliary rod 222). In order to ensure convenient installation, the pulley blocks in the application are all installed on the pulley connecting rods 210, specifically: the two ends of the first pulley connecting rod 211 and the two ends of the second pulley connecting rod 212 are all provided with pulley blocks 230, that is, four pulley blocks 230 are formed to connect the top plate assembly 120 and the bottom plate assembly 110.

[0069] In order to realize the sliding between the middle frame and the top plate assembly 120 and the bottom plate assembly 110 in different directions, each pulley block 230 in the application comprises a first damping pulley 231 and a second damping pulley 232, the central axis of the first damping pulley 231 is perpendicular to the central axis of the second damping pulley 232, the bottom of the second damping pulley 232 protrudes from the middle frame and abuts against the upper surface of the lower tuning track, and the top of the first damping pulley 231 protrudes from the middle frame and abuts against the lower surface of the upper tuning track, so that the first damping pulley 231 and the second damping pulley 232 consume seismic energy through damping force in the rotating process.

[0070] The first damping pulley 231 and the second damping pulley 232 are similar in structure, and the first damping pulley 231 will be described as an example. Figure 8 As shown in the first damping pulley 231, the first damping pulley 231 and the second damping pulley 232 both comprise a central shaft 2311 and a pulley piece 2313, the central shaft 2311 is installed on the middle frame, the pulley piece 2313 is sleeved on the central shaft 2311, and a damping friction piece 2312 is arranged between the pulley piece 2313 and the central shaft 2311. In the movement process, the pulley piece 2313 and the damping friction piece 2312 rotate relative to each other, so that the damping friction force between the damping friction piece 2312 and the pulley piece 2313 is used to consume seismic energy. In a preferred embodiment, the damping friction piece 2312 is provided with an axially extending opening 23121, which can conveniently pass through the central shaft 2311 to install the pulley piece 2313. The central shaft 2311 is made of special friction damping material, such as Figure 8 As shown, by changing the damping force generated by the friction material, it plays a role in energy dissipation and energy consumption in the reciprocating motion of the double slide rail, thereby reducing the transmission of horizontal seismic energy to the upper cabinet and protecting the cabinet from being damaged.

[0071] Preferably, the first damping pulley 231 further comprises a gasket 2314 and a fastener 2315, the fastener 2315 is connected with the central shaft 2311 after passing through the gasket 2314, the central shaft 2311 can be installed on the middle frame, so that the gasket 2314 and the pulley part 2313 form a gap clamping the middle frame. In addition, the sliding connecting rod 210 is provided with a pulley frame 2113 for installing the first damping pulley 231 and a pulley slot 2112 for installing the second damping pulley 232, wherein the pulley frame 2113 protrudes from the upper side of the pulley connecting rod 210, and the pulley slot 2112 is located in the middle of the pulley connecting rod 210.

[0072] The upper tuning rail extends in the first direction, and the lower tuning rail extends in the second direction, so that the top plate assembly 120 slides relative to the middle frame in the first direction, and the middle frame slides relative to the bottom plate assembly 110 in the second direction. The upper tuning rail is installed on the upper support plate 121, and the lower tuning rail is installed on the lower support plate 111, so that the bottom plate assembly 110 can reliably support the top plate assembly 120.

[0073] In the present application, the lower tuning rail comprises a first lower tuning rail 251, a second lower tuning rail 252, a third lower tuning rail 253, and a fourth lower tuning rail 254, and each lower tuning rail corresponds to the position of the second damping pulley 232 in a pulley set 230; the upper tuning rail comprises a first upper tuning rail 261, a second upper tuning rail 262, a third upper tuning rail 263, and a fourth upper tuning rail 264, and each upper tuning rail corresponds to the position of the first damping pulley 231 in a pulley set 230. Specifically, the first lower tuning rail 251 and the second lower tuning rail 252 are installed on the same straight line, the third lower tuning rail 253 and the fourth lower tuning rail 254 are installed on the same straight line, and the first lower tuning rail 251, the second lower tuning rail 252, the third lower tuning rail 253, and the fourth lower tuning rail 254 are spaced apart from each other; the first upper tuning rail 261 and the second upper tuning rail 262 are installed on the same straight line, the third upper tuning rail 263 and the fourth upper tuning rail 264 are installed on the same straight line, and the first upper tuning rail 261, the second upper tuning rail 262, the third upper tuning rail 263, and the fourth upper tuning rail 264 are spaced apart from each other.

[0074] The upper surface of the lower tuning track and the lower surface of the upper tuning track are both arc surfaces, which can convert seismic energy into kinetic energy and gravitational potential energy of the seismic isolation device to consume seismic energy, and can provide restoring force for the seismic isolation device after an earthquake (or the machine cabinet can be manually pushed back to the original position after an earthquake). Specifically, in one embodiment, the upper surface of the lower tuning track and the lower surface of the upper tuning track are both arc surfaces with consistent curvature, so that the tangent component of the gravity of the machine cabinet on the surface of the tuning track can provide power for the machine cabinet to return to the original position; in another embodiment, the upper surface of the lower tuning track and the lower surface of the upper tuning track can be formed by sequentially connecting a plurality of arc surfaces with different curvatures, and in this embodiment, the tuning track has the maximum curvature at the lowest point of the arc surface (the highest point of the upper tuning track), so that the machine cabinet can move different distances to the left and right sides at the midpoint, the restoring force is different, and the machine cabinet can be provided with more stable power.

[0075] The passive seismic isolation assembly 200 further comprises two anti-tilting members arranged on opposite sides in the second direction, the upper ends of the anti-tilting members are fixedly connected with the top plate assembly 120, and the lower ends are clamped with the middle frame, so that the anti-tilting members slide along the middle frame in the first direction under the driving of the top plate assembly 120. Correspondingly, the outer side of the lower surface of the middle frame is provided with a secondary rod sliding groove, and the lower end of the anti-tilting member is provided with an anti-tilting sliding block 240 protruding inward, the anti-tilting sliding block 240 extends into the secondary rod sliding groove, so that the anti-tilting sliding block 240 is clamped with the middle frame to prevent the top plate assembly 120 from tilting to the other side in the second direction.

[0076] Specifically, in the present application, the bottom corner of the first sliding secondary rod 221 is provided with a first secondary rod sliding groove 2211, the bottom corner of the second sliding secondary rod 222 is provided with a second secondary rod sliding groove 2221, and the first secondary rod sliding groove 2211 and the second secondary rod sliding groove 2221 are arranged opposite to each other. The first anti-tilting member 241 is installed on the first sliding secondary rod 221, and the first anti-tilting sliding block 2411 at the bottom end of the first anti-tilting member 241 is arranged on the first secondary rod sliding groove 2211; the second anti-tilting member 242 is installed on the second sliding secondary rod 222, and the second anti-tilting sliding block 2421 on the second anti-tilting member 242 is arranged on the second secondary rod sliding groove 2221, and the top plate assembly 120 is installed on the first anti-tilting member 241 and the second anti-tilting member 242, which not only realizes the connection between the top plate assembly 120 and the middle frame, but also ensures that the top plate assembly 120 does not move beyond the support range of the bottom plate assembly 110 when the top plate assembly 120 moves relative to the bottom plate assembly 110, thereby preventing the top plate assembly 120 and the machine cabinet above it from overturning.

[0077] In the application, the passive isolation assembly 100 is obtained by distributing eight damping pulleys and eight tuning tracks in an orthogonal manner between the top plate assembly 120 and the bottom plate assembly 110, which can realize sliding in any direction in the plane, and the seismic energy is consumed through the damping force between the tuning track and the damping pulley and the damping force between the pulley and the pulley shaft, and finally the seismic wave energy is consumed through the damping force, so as to reduce the damage of the equipment in the cabinet in the earthquake.

[0078] Through the design of the passive isolation assembly, the application can realize energy consumption in the earthquake process through the damping friction between the pulley part 2313 inside the damping pulley and the central shaft 2311, the damping friction between the damping pulley and the tuning track, and can also convert the seismic force into kinetic energy and gravitational potential energy through the arc surface design of the tuning track, and form hysteresis energy consumption in the sliding process of the damping pulley, so as to realize the purpose of shock absorption and friction pendulum isolation performance, and realize the automatic reset function of the isolation device after the earthquake.

[0079] 2. Damping active control assembly

[0080] The traditional cabinet isolation device consumes seismic energy through the energy consumption device to protect the cabinet and the electronic equipment in the cabinet from damage. This method is passive isolation, and the inherent frequency, damping force and other parameters are determined, so it is difficult to play the isolation effect when facing uncertain seismic acceleration. Therefore, the damping active control assembly is added on the basis of the traditional passive isolation assembly.

[0081] As shown in Figures 2 to 5 , Figures 11 to 15 , the damping active control assembly 300 includes a first damping active control assembly and a second damping active control assembly, the first damping active control assembly is used for providing active damping isolation for the relative movement of the top plate assembly 120 relative to the bottom plate assembly 110 in the first direction, and the second damping active control assembly is used for providing active damping isolation for the relative movement of the top plate assembly 120 relative to the bottom plate assembly 110 in the second direction.

[0082] The first damping active control assembly and the second damping active control assembly both include a damping oil circuit, an adjusting valve body and a damping piston rod, the damping oil circuit is filled with damping oil (hydraulic damping force is generated during oil flow) for consuming seismic energy, the adjusting valve body is arranged on the damping oil circuit and connected with an adjusting motor, so that the adjusting valve body changes the flow area of the damping oil under the driving of the adjusting motor, and the damping piston rod passes through the damping oil circuit and is sealingly connected with the inner wall of the damping oil circuit.

[0083] The adjusting valve body is in a cylindrical shape, the adjusting valve seat is provided with a containing cavity for containing the adjusting valve body, the adjusting valve seat is provided with a pipe hole for allowing the damping oil to pass through, the adjusting valve body is provided with a rotating hole for allowing the damping oil to pass through, and the central axis of the rotating hole and the central axis of the pipe hole are perpendicular to the central axis of the adjusting valve body; when the central axis of the rotating hole coincides with the central axis of the pipe hole, the flow area of the damping oil in the damping oil circuit is the largest, and the damping force provided by the damping oil is the smallest; when the central axis of the rotating hole is perpendicular to the central axis of the pipe hole, the flow area of the damping oil in the damping oil circuit is the smallest, and the damping force provided by the damping oil is the largest, so that the damping piston rod can be in a stationary state in the damping oil circuit.

[0084] In the first damping active control assembly, the first damping piston rod 313 is connected with the bottom plate assembly 110, and the first damping oil circuit is connected with the top plate assembly 120, so that when the bottom plate assembly 110 drives the first damping piston rod 313 to reciprocate in the first direction, the first damping piston rod 313 relatively slides with the first damping oil circuit, and the damping oil flows in the first damping oil circuit.

[0085] As shown in Figures 11 to 13 The two ends of the first piston sleeve 315 in the first damping oil circuit are connected with the two open ends of the first adjusting valve through the first corner sleeve 316, the first damping piston rod 313 passes through the first piston sleeve 315 and is sealingly connected with the inner wall of the first piston sleeve 315, so that when the first damping piston rod 313 relatively slides with the first piston sleeve 315, the damping oil in the first damping oil circuit is driven to flow. The first adjusting valve includes a first adjusting valve seat 317 and a first adjusting valve body 3181, the first adjusting valve body 3181 is located in the first adjusting valve seat 317, and the first adjusting valve body 3181 is connected with the first adjusting motor 318. Preferably, the first adjusting valve body 3181 and the first adjusting valve seat 317 are provided with a first bearing 3171 and a first pipe sealing ring, so as to realize the rotation and sealing connection between the first adjusting valve body 3181 and the first adjusting valve seat 317.

[0086] In order to realize that the damping oil can flow with the relative movement between the top plate assembly and the bottom plate assembly in the first direction, the first damping piston rod 313 in the application is provided with a first piston baffle 3131, the first piston baffle 3131 is sealingly connected with the inner wall of the first piston sleeve 315 through a first sealing ring 3132, so that when the first damping piston rod 313 moves in the first direction, the damping oil in the first damping oil circuit can be driven to flow by the first piston baffle 3131 to generate a hydraulic damping force.

[0087] In order to realize the movement of the first damping piston rod 313 along with the relative movement between the bottom plate assembly and the top plate assembly in the first direction, the first damping active control assembly in the present application further comprises a first damping slider 312, a first support seat 311, and a first damping oil circuit. The first damping slider 312 and the first damping oil circuit are fixedly connected with the top plate assembly 120. The first support seat 311 is fixed on the bottom plate assembly. Both ends of the first damping piston rod 313 are in abutment with the first support seat 311 after passing through the corresponding first damping slider 312. The first support seat 311 is used for limiting the movement of the first damping piston rod 313 in the first direction. The first damping slider 312 can be connected with the first piston sleeve 315 and the top plate assembly, and can also play a role of directional sliding. The first damping oil circuit (specifically the end of the first piston sleeve 315) is connected with the first connecting piece 314. The upper side of the first damping slider 312 and the upper side of the first connecting piece 314 are connected with the first connecting plate 319 and fixed with the top plate assembly through the first connecting plate 319.

[0088] Preferably, the outer side of the first support seat 311 is provided with a protruding first support slider 3111. The middle frame is provided with a pulley support for limiting the first support slider 3111. Specifically, the inner side of the first pulley connecting rod 211 is provided with a first pulley support 2111, and the inner side of the second pulley connecting rod 212 is provided with a second pulley support 2121. Both ends of the first support slider 3111 are arranged on the first pulley support 2111 and the second pulley support 2121 and slide along the second direction, thereby providing a limiting force for the first damping piston rod 313 and providing a sliding range of the first damping active control assembly in the second direction.

[0089] In the second damping active control assembly, the second damping oil circuit is connected with the bottom plate assembly 110, and the second damping piston rod 322 is connected with the middle frame. When the bottom plate assembly 110 drives the second damping oil circuit to reciprocate in the second direction, the first damping piston rod 322 is limited by the middle frame to slide relative to the second damping oil circuit, so that the damping oil flows in the second damping oil circuit.

[0090] As Figure 11 , Figure 14 , Figure 15As shown, two ends of the second piston sleeve 324 in the second damping oil circuit are connected with two open ends of the second regulating valve through the second corner sleeve 325 respectively, the second damping piston rod 322 passes through the second piston sleeve 324 and is in sealing connection with the inner wall of the second piston sleeve 324, so that the second damping piston rod 322 drives the damping oil in the second damping oil circuit to flow when the second damping piston rod 322 slides relative to the second piston sleeve 324. The second regulating valve includes a second regulating valve seat 326 and a second regulating valve body 3271, the second regulating valve body 3271 is located in the second regulating valve seat 326 and the second regulating valve body 3271 is connected with the second motor 327. Preferably, the second regulating valve body 3271 and the second regulating valve seat 326 are provided with a second bearing 3261 and a second pipe sealing ring, so as to realize the rotation and sealing connection between the second regulating valve body 3271 and the second regulating valve seat 326.

[0091] In order to realize that the damping oil can flow with the relative movement between the top plate assembly 120 and the bottom plate assembly 110 in the second direction, the second damping piston rod 322 in the application is provided with a second piston baffle 3221, the second piston baffle 3221 is in sealing connection with the inner wall of the second piston sleeve 324 through a second sealing ring 3222. When the second damping piston rod 322 moves in the second direction, the damping oil in the second damping oil circuit can flow through the second piston baffle 3221 to generate a hydraulic damping force.

[0092] In order to realize that the second damping piston rod 322 can move with the relative movement between the middle frame and the bottom plate assembly 110 in the second direction, the second damping active control assembly in the application further includes a second support seat 321, the second damping oil circuit and the second support seat 321 are fixedly connected with the bottom plate assembly 110, two ends of the second damping piston rod 322 pass through the corresponding second support seat 321 and are connected with the middle frame (here, it refers to that the two ends of the second damping piston rod 322 abut against the first sliding pair rod 231 and the second sliding pair rod 232), the middle frame is used for limiting the movement of the second damping piston rod 322 in the second direction. The second damping oil circuit (specifically, the end of the second piston sleeve 324) is connected with the second connecting piece 323, the lower side of the second support seat 321 and the lower side of the second connecting piece 323 are connected with the second connecting plate 328 and are fixed with the bottom plate assembly through the second connecting plate 328.

[0093] The damping active control assembly further comprises a plurality of sensors, the first adjusting motor 318, the second adjusting motor 327 and the plurality of sensors are connected with the controller, so that the controller controls the first adjusting motor 318 to change the rotation angle of the first adjusting valve body 3181 and controls the second adjusting motor 327 to change the rotation angle of the second adjusting valve body 3271 after receiving the signals of the plurality of sensors, thereby adjusting the flow area of the damping oil in the corresponding damping oil circuit and changing the damping force. In the application, the controller uses the hyperbolic tangent model as the control model, simulates the variable flow interface and other related models, and realizes the control of the damping piston rod.

[0094] The application collects and inputs the energy size and direction of the seismic wave to the controller, and uses the model to simulate data and control, adjusts the size of the damping force of the damping oil, so that the cabinet and other equipment can be controlled in the range with smaller acceleration influence under the influence of the seismic wave, and the rotation angle of the adjusting valve body is controlled. The hyperbolic tangent model is a known design model, and the data acquisition sensor is also a common signal acquisition device in the field, and the application can obtain the final control signal by using such design model and data acquisition method.

[0095] The application can consume the seismic energy by the friction between the slide rail with curvature and the damping pulley surface to maintain the cabinet stable, and the movement of the seismic isolation device caused by the earthquake is sensed by the plurality of sensors, and the cross-sectional area of the damping oil passing through the two damping oil circuits is obtained by the controller after calculation, and then the damping is automatically adjusted, so that the seismic wave energy is actively consumed and the swing amplitude between the middle frame and the rail surface is inhibited.

[0096] In addition, the cabinet is installed on the device, which can be regarded as a double-degree-of-freedom system with variable damping, and the seismic acceleration response value of the cabinet is reduced to about 8% under different seismic wave inputs, the damping effect can reach more than 80% to 90%, and the safety of the data storage and transmission equipment cabinet under a great earthquake can be ensured. The device can be used for data cabinets and precision instruments in high-tech, finance, communication, military, energy, cultural relics and government fields.

[0097] The application further provides a seismic isolation method of the damping-adjustable elastic tuning track seismic isolation device, and the damping-adjustable elastic tuning track seismic isolation device is applied. During the earthquake, the top plate assembly of the damping-adjustable elastic tuning track seismic isolation device moves relative to the bottom plate assembly in the first direction and / or the second direction, in order to reduce the influence of the seismic wave on the cabinet, the seismic isolation device consumes the seismic wave energy in a passive mode and an active mode.

[0098] In one aspect, the passive isolation component in the damping-adjustable elastic tuning track isolation device passively consumes seismic wave energy when an earthquake occurs: when the top plate component moves relative to the bottom plate component in the first direction and / or the second direction, the middle frame in the damping-adjustable elastic tuning track isolation device passively consumes seismic wave energy through the damping friction between the first damping pulley and the lower tuning track and / or the damping friction between the second damping pulley and the upper tuning track; at the same time, the damping friction between the pulley part and the central shaft when the first damping pulley and / or the second damping pulley rotates is passively consumed.

[0099] During the movement, if the top plate component moves relative to the bottom plate component in the first direction, the top plate component moves relative to the middle frame in the first direction, at this time, the second damping pulley and the upper tuning track generate damping friction, the pulley part inside the second damping pulley and the central shaft generate damping friction, thereby consuming seismic wave energy; if the top plate component moves relative to the bottom plate component in the second direction, the middle frame moves relative to the bottom plate component in the second direction, at this time, the first damping pulley and the lower tuning track generate damping friction, the pulley part inside the first damping pulley and the central shaft generate damping friction, thereby consuming seismic wave energy; if the top plate component moves relative to the bottom plate component in the first direction and the second direction at the same time, the top plate component moves relative to the middle frame in the first direction and the middle frame moves relative to the bottom plate component in the second direction, at this time, the first damping pulley and the lower tuning track, the second damping pulley and the upper tuning track, and the pulley part inside each damping pulley and the central shaft all generate damping friction, thereby consuming seismic wave energy in two directions respectively.

[0100] At the same time, the arc surface design of the upper tuning track and the lower tuning track provides a restoring force for the entire isolation device to return to its original position after an earthquake.

[0101] On the other hand, in the process of passively consuming seismic wave energy, the present application also consumes seismic energy through the damping active control component, which specifically includes the following processes:

[0102] S1, detecting the acceleration when an earthquake occurs through multiple sensors, and sending the detection results to the controller.

[0103] In the present application, the lower side of the isolation device is provided with a first sensor and a second sensor for measuring the acceleration in the first direction and the second direction when an earthquake occurs; the upper side of the isolation device of the present application is also provided with a third sensor and a fourth sensor for measuring the acceleration of the cabinet in the first direction and the second direction when an earthquake occurs.

[0104] S2, the controller determines the direction and acceleration of the seismic wave when the earthquake occurs, and simulates the motion state of the damping oil circuit and the adjusting valve body in the damping-adjustable elastic tuning track isolation device using a hyperbolic tangent model, and determines the rotation angle of the adjusting valve body.

[0105] The controller determines the direction and force of the seismic wave by analyzing the sensor detection data, and transmits the corresponding data to the hyperbolic tangent model for simulation, and obtains the rotation angle of the adjusting valve body when the isolation effect meets the requirements based on the model. Specifically:

[0106] (1) In the hyperbolic tangent model, the damping force of the damping oil in the damping oil circuit model under different cross sections is simulated;

[0107] (2) The first sensor and the second sensor determine the seismic acceleration in the first direction and the second direction, and the third sensor and the fourth sensor can determine the influence of the earthquake on the cabinet, and then determine the required damping force in the first direction and the second direction;

[0108] (3) Based on the recorded damping force of the damping oil in the damping oil circuit model under different sizes of cross section, and the size of the required damping force obtained by different sensors, the size of the required cross section of the two damping oil circuits can be determined, that is, the rotation angle of the two adjusting valve bodies can be obtained.

[0109] S3, the controller drives the adjusting motor to move and drives the adjusting valve body to rotate to the required angle based on the calculated rotation angle of the adjusting valve body, thereby changing the flow area of the damping oil in the damping oil circuit, and actively consuming the seismic wave energy through the flow of the damping oil in the damping oil circuit.

[0110] During the earthquake, multiple sensors detect the motion data of the earthquake and the cabinet in real time, and feed back to the hyperbolic tangent model for closed-loop adjustment, so that the damping active control component of the entire isolation device can be adjusted in real time.

[0111] The present application also includes a reset process after the earthquake: the controller detects the end of the earthquake through the sensor, and drives the corresponding adjusting valve body to reset to the original state through the first adjusting motor and the second adjusting motor.

[0112] The process of collecting and transmitting data by the sensor, the design of the hyperbolic tangent model and the signal input process are common design methods in the art, and the present application does not improve them, and the specific design process will not be described in detail.

[0113] The application utilizes the cooperation of active isolation and passive isolation, on one hand, can increase the superposition of seismic wave energy consumption, can further increase the isolation effect, maintain the stability of the cabinet; on the other hand, through the cooperation of the two ways, the initiative of the isolation device can be played at the same time in the traditional isolation mode, different isolation control can be realized according to different seismic waves, and the adjustability of the isolation device is increased.

[0114] It should be understood that the above description can be improved or changed by those skilled in the art, and all these improvements and changes shall belong to the protection scope of the appended claims of the application.

[0115] The above is an exemplary description of the application in combination with the drawings. Obviously, the implementation of the application is not limited by the above manner, as long as various improvements are made by adopting the method concept and technical scheme of the application, or the concept and technical scheme of the application is directly applied to other occasions without improvement, which is within the protection scope of the application.

Claims

1. A damping-adjustable, elastically tuned track vibration isolation device, comprising a base plate assembly connected to a base platform and a top plate assembly connected to a cabinet, wherein a vibration isolation component is provided between the base plate assembly and the top plate assembly, characterized in that, The seismic isolation assembly includes a first active damping control assembly and a second active damping control assembly. Both the first damping active control component and the second damping active control component include a damping oil circuit filled with damping oil, a regulating valve, and a damping piston rod. The regulating valve includes a regulating valve body and a regulating valve seat. The regulating valve is located on the damping oil circuit and connected to a regulating motor, so that the regulating valve changes the flow cross-sectional area of ​​the damping oil under the drive of the regulating motor. The damping piston rod passes through the damping oil circuit and is sealed to the inner wall of the damping oil circuit. In the first damping active control assembly, the damping piston rod is connected to the base plate assembly, and the damping oil circuit is connected to the top plate assembly, so that when the base plate assembly drives the damping piston rod to reciprocate in the first direction, the damping oil flows in the damping oil circuit. In the second damping active control assembly, the damping oil circuit is connected to the base plate assembly, and the damping piston rod is connected to the top plate assembly, so that when the base plate assembly drives the damping oil circuit to reciprocate in the second direction, the damping oil flows in the damping oil circuit. The vibration isolation assembly also includes a passive vibration isolation assembly, which includes a middle frame, a plurality of first damping pulleys and a plurality of second damping pulleys mounted on the middle frame, a lower tuning rail mounted on the upper side of the base plate assembly, and an upper tuning rail mounted on the lower side of the top plate assembly. The central axis of the first damping pulley is perpendicular to the central axis of the second damping pulley; The bottom of the second damping pulley protrudes from the middle frame and abuts against the upper surface of the lower tuning track, while the top of the first damping pulley protrudes from the middle frame and abuts against the lower surface of the upper tuning track, so that the first damping pulley and the second damping pulley consume seismic energy through damping force during rotation. The passive vibration isolation assembly also includes two anti-tilt members disposed on opposite sides in the second direction. The upper end of the anti-tilt member is fixedly connected to the top plate assembly, and its lower end is engaged with the middle frame, so that the anti-tilt member slides along the middle frame in the first direction under the action of the top plate assembly.

2. The damping-adjustable elastically tuned track isolation device according to claim 1, characterized in that, The vibration isolation assembly also includes multiple sensors. The regulating motor and the multiple sensors are all connected to the controller, so that after the controller receives the signals from the multiple sensors, it controls the regulating motor to change the rotation angle of the regulating valve body.

3. The damping-adjustable elastically tuned track isolation device according to claim 1, characterized in that, In the damping oil circuit, the two ends of the piston sleeve are respectively connected to the two open ends of the regulating valve through the corner sleeve. The damping piston rod passes through the piston sleeve and is sealed to the inner wall of the piston sleeve, so that when the damping piston rod slides relative to the piston sleeve, it drives the damping oil in the damping oil circuit to flow.

4. The damping-adjustable elastically tuned track isolation device according to claim 3, characterized in that, The regulating valve body is cylindrical, and the regulating valve seat has a receiving cavity for accommodating the regulating valve body. The regulating valve seat has a pipe through hole, and the regulating valve body has a rotating part through hole. The central axis of the rotating part through hole and the central axis of the pipe through hole are both perpendicular to the central axis of the regulating valve body. When the central axis of the rotating part through hole coincides with the central axis of the pipe through hole, the flow cross-sectional area of ​​the damping oil in the damping oil circuit is the largest. When the central axis of the rotating part through hole is perpendicular to the central axis of the pipe through hole, the flow cross-sectional area of ​​the damping oil in the damping oil circuit is the smallest.

5. The damping-adjustable elastically tuned track isolation device according to claim 1, characterized in that, The upper surface of the lower tuning track and the lower surface of the upper tuning track are both composed of arc surfaces with consistent curvature. Alternatively, the upper surface of the lower tuning track and the lower surface of the upper tuning track are both formed by connecting multiple arc surfaces with different curvatures in sequence.

6. The damping-adjustable elastically tuned track isolation device according to claim 1, characterized in that, Both the first damping pulley and the second damping pulley include a central shaft and a pulley component. The central shaft is fixed to the middle frame, and the pulley component is sleeved on the central shaft. A damping friction component is provided between the pulley component and the central shaft. The damping friction force between the damping friction component and the pulley component is used to dissipate seismic energy.

7. A method for vibration isolation of an adjustable damping elastically tuned track isolation device, characterized in that, Using the damping-adjustable elastic tuned track isolation device according to any one of claims 1-6, during an earthquake, the top plate assembly of the damping-adjustable elastic tuned track isolation device moves relative to the bottom plate assembly in a first direction and / or a second direction, and the seismic energy is dissipated through the damping active control component: S1. Detects the acceleration during an earthquake using multiple sensors and sends the detection results to the controller; S2. The controller determines the direction and acceleration magnitude of the seismic wave when the earthquake occurs, and uses a hyperbolic tangent model to simulate the motion state of the damping oil circuit and regulating valve body in the damping adjustable elastic tuned track isolation device, and determines the rotation angle of the regulating valve body. S3. Based on the calculated rotation angle of the regulating valve body, the controller drives the regulating motor to move and rotates the regulating valve body to the required angle, thereby changing the flow cross-sectional area of ​​the damping oil in the damping oil circuit. The flow of the damping oil in the damping oil circuit actively consumes the seismic wave energy.

8. The vibration isolation method of the damped adjustable elastic tuned track isolation device according to claim 7, characterized in that, In the aforementioned damped, adjustable, elastically tuned track isolation device, the passive isolation components also passively dissipate seismic wave energy during an earthquake. When the top plate assembly moves relative to the bottom plate assembly in the first direction and / or the second direction, the middle frame in the damped adjustable elastic tuned track isolation device passively dissipates seismic wave energy through the damping friction between the first damping pulley and the lower tuned track and / or the damping friction between the second damping pulley and the upper tuned track. Meanwhile, as the first and / or second damping pulleys rotate, the damping friction between the pulley components and the central axis passively consumes the seismic wave energy.

Images