TWI713644B - Damping device - Google Patents

Abstract

A vibration damping device is provided, which can make a vibrating body vibrate in any direction in a plane at high speed and long stroke. The vibration damping device (10) has: a vibrating body (16), a restoring force mechanism (20), a vertical sliding mechanism (22), and a primary coil body that is arranged under the vibrating body (16) and used as the first member (26), the secondary conductor (28) as the second member, the holding mechanism (24) that keeps the primary coil body (26) and the secondary conductor (28) within a certain interval, the upper side of the detection A vibration detection unit (30) for the vibration of the structure (12) relative to the direction of the XY plane of the lower structure (14), and a control unit (32) for controlling the induction type linear motor. The control unit (32), based on the vibration in the direction of the XY plane detected by the vibration detector (30), flows a current through the wire (34), and makes the primary coil body (26) relative to the 2 The secondary conductor (28) vibrates.

Description

Damping device

The present invention relates to a shock absorber.

The seismic control device is generally used for earthquake countermeasures of buildings under construction. It has a vibrating body and a driving mechanism that drives the vibrating body to a direction that attenuates the vibration generated by the earthquake. Examples of the driving mechanism include a mechanism combining a rotary motor with a ball screw or gear, a mechanism using an electric actuator, and a mechanism using a synchronous linear motor. Patent Document 1 describes a vibration damper using a synchronous linear motor as the driving mechanism.

[Prior technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 2994900

However, in a vibration control device with a combined rotary motor and a ball screw or a gear drive mechanism, a ball screw or gear is used The low conversion efficiency when converting the rotary motion of the rotary motor into the linear motion limits the speed of the vibrating body driven by the drive mechanism relative to the structure. In a vibration damping device with a driving mechanism combining a rotary motor and a ball screw, the speed of the vibrating body driven by the driving mechanism relative to the structure is also restricted due to the specifications of the ball screw. Moreover, in a shock absorbing device having a driving mechanism using an electric actuator, as the cylinder barrel used in the electric actuator becomes longer and the cost increases significantly, there is no tendency to increase the vibrating body driven by the driving mechanism. The damping device relative to the speed of the structure.

In the damping device described in Patent Document 1, since magnets are used in the drive mechanism, that is, a synchronous linear motor, there is a restriction corresponding to the driving force given to the vibrating body by the drive mechanism. Moreover, in this vibration control device, because the rail is used for the synchronous linear motor, the direction of movement of the vibrating body with respect to the structure driven by the drive mechanism is restricted to one direction.

For this reason, none of the above-mentioned seismic damping devices tend to vibrate the vibrating body with respect to the structure at a high speed and a long stroke via a driving mechanism, and has its limits for the long-period earthquakes required in recent years.

The present invention was created in view of the above, and its purpose is to provide a vibration damping device that can make the vibrating body vibrate in any direction in the plane at high speed and long stroke relative to the structure.

In order to solve the above-mentioned problems and achieve the objective, the vibration damping device of the present invention has: a vibrating body supported by a structure in a vibrating state; and a first member connected to the vertical lower surface of the vibrating body, Connected to the vibrating body to move; the second member is spaced below the first member and is fixed to the surface of the structure, that is, a plane extending in the horizontal direction; the holding mechanism connects the first member with The second members are kept within a certain interval; the vibration detection unit detects the vibration of the vibrating body in the direction relative to the plane of the structure; and the control unit is used to eliminate the vibration detection unit The direction of the detected vibration in the direction of the plane makes the first member vibrate with respect to the second member; any one of the first member and the second member is set such that the axis direction is parallel to the plane Primary coil body; the other of the aforementioned first member and the aforementioned second member is in accordance with the magnetic force generated by the aforementioned primary coil body in a direction perpendicular to the aforementioned axial direction with respect to the aforementioned primary coil body and in the aforementioned plane The second conductor of the force in the direction.

This vibration damping device has a first member that is connected as a movable member and a vibrating body to move, and has a second member that is fixed to the structure as a fixed member to vibrate the first member relative to the second member In this way, the vibrating body can vibrate in any direction in the plane at high speed and long stroke relative to the structure.

In the damping device of the present invention, ideally, the primary coil body includes a first coil and a second coil whose axial direction is different from that of the first coil. Through this, the primary coil body can be compared with the 2 Because the secondary conductor moves in any direction in the plane, the vibrating body can vibrate in any direction in the plane with respect to the structure.

In the damping device of the present invention, ideally, it further has: a first member guiding mechanism, which is provided between the lower part of the vibrating body and the first member, and guides the first member relative to the vibrating body mobile. With this, it is possible to prevent the first member from falling off from the vibrating body.

In the damping device of the present invention, ideally, the holding mechanism includes: a first direction holding mechanism in which the primary coil body and the secondary conductor are held in a first direction parallel to the plane so as to be relatively movable ; And a second direction holding mechanism, the primary coil body and the secondary conductor are held in a second direction parallel to the plane and orthogonal to the first direction so as to be relatively movable. With this, on the one hand, the distance between the first member and the second member can be kept within the allowable range of a proper interval, and on the other hand, the first member can be moved relative to the second member in any direction in the plane. Stabilize the movement of the first member relative to the second member.

In the damping device of the present invention, ideally, the holding mechanism includes a ball bearing, which is the primary coil body and the secondary conductor, is held in a direction parallel to the plane and is relatively movable. With this, on the one hand, the distance between the first member and the second member can be kept within the allowable range of a proper interval, and on the other hand, the first member can be moved relative to the second member in any direction in the plane. Stabilize the movement of the first member relative to the second member.

In the shock absorber of the present invention, ideally, it further has: a restoring force mechanism, which responds to the vibration when the vibration body is already vibrated. Body gives resilience. With this, since the restoring force acts on the vibrating body, the power consumption during the movement of the first member with respect to the second member can be suppressed.

In the damping device of the present invention, ideally, the restoring force mechanism includes a supporting member provided between the structure and the vibrating body to support the vibrating body so as to be rockable relative to the structure. With this, the restoring force of the pendulum can be applied to the vibrating body supported by the supporting member.

In the damping device having the first direction holding mechanism and the second direction holding mechanism of the present invention, ideally, the aforementioned restoring force mechanism has: a coil spring which is provided between the aforementioned vibrating body and the aforementioned first direction holding mechanism Between the first direction holding mechanism and the second direction holding mechanism, the vibrating body is supported in a direction that can vibrate in the plane with respect to the structure. Through this, the elastic force of the coil spring as a restoring force can be applied to the vibrating body supported by the coil spring.

In the damping device having a ball bearing of the present invention, ideally, the restoring force mechanism has a downwardly convex curved surface and is provided on the upper surface of the second member fixed to the structure. After this, the resilience caused by the downward convex curved surface can be applied to the vibrating body.

In the vibration damping device of the present invention that does not have a first direction holding mechanism and a second direction holding mechanism or a ball bearing, ideally, the holding mechanism has: a supporting member that is provided on the structure and the vibrating body In between, the vibrating body is supported so as to be rockable relative to the structure; and a downwardly convex curved surface is provided on the upper surface of the second member fixed to the structure. After this, on the one hand, the first component Keep within a certain distance from the second member. On the one hand, the first member can move relative to the second member in any direction in the plane, so that the movement of the first member relative to the second member can be stabilized. . Furthermore, since a restoring force acts on the vibrating body supported by the supporting member, the power consumption during the movement of the first member with respect to the second member can be suppressed.

According to the present invention, a vibration damping device can be obtained, which can make the vibrating body vibrate in any direction in the plane at high speed and long stroke relative to the structure.

10, 40, 50, 60, 70, 80, 90: vibration control device

12: Upper structure

14: Lower structure

16, 52, 62, 82: Vibrating body

20, 54: Resilience mechanism

22: Vertical sliding mechanism

24: Keep the organization

24x: X-axis movable rail

24y: Y-axis movable guide rail

26, 128:1 secondary coil body

26x: first coil

26y: second coil

28, 84, 92, 126: secondary conductor

30: Vibration Detection Department

32: Control Department

34, 134: Wire

42: Ball bearing

84a, 92a: downward convex surface

[Fig. 1] Fig. 1 is a diagram showing the configuration of a vibration control device according to a first embodiment of the present invention.

[Fig. 2] Fig. 2 is a diagram showing the structure of a holding mechanism used in the shock absorber according to the first embodiment of the present invention.

[Fig. 3] Fig. 3 is a detailed view showing the configuration of a holding mechanism used in the vibration control device according to the first embodiment of the present invention.

[Fig. 4] Fig. 4 is a diagram showing the configuration of a primary coil body and a secondary conductor used in the vibration control device according to the first embodiment of the present invention.

[Fig. 5] Fig. 5 is a diagram showing the configuration of a vibration control device according to a second embodiment of the present invention.

[Fig. 6] Fig. 6 shows a vibration control system according to a third embodiment of the present invention Diagram of the composition of the device.

[Fig. 7] Fig. 7 is a diagram showing the configuration of a restoring force mechanism used in a vibration control device according to a third embodiment of the present invention.

[Fig. 8] Fig. 8 is a diagram showing the configuration of a vibration control device according to a fourth embodiment of the present invention.

[Fig. 9] Fig. 9 is a diagram showing the configuration of a vibration control device according to a fifth embodiment of the present invention.

[Fig. 10] Fig. 10 is a diagram showing the configuration of a vibration control device according to a sixth embodiment of the present invention.

[Fig. 11] Fig. 11 is a diagram showing the configuration of a vibration control device according to a seventh embodiment of the present invention.

[Fig. 12] Fig. 12 is a diagram showing the configuration of a vibration control device according to an eighth embodiment of the present invention.

Hereinafter, the vibration control device according to the embodiment of the present invention will be described in detail based on the drawings. In addition, the description of the following embodiments does not limit the present invention, and can be modified and implemented as appropriate.

FIG. 1 is a diagram showing the structure of a vibration control device 10 according to the first embodiment of the present invention. FIG. 2 is a diagram showing the structure of a holding mechanism 24 used in the vibration control device 10 according to the first embodiment of the present invention. FIG. 3 is a detailed view showing the structure of the holding mechanism 24 used in the vibration control device 10 according to the first embodiment of the present invention. 4 is a diagram showing the primary coil body 26 used in the vibration control device 10 according to the first embodiment of the present invention and A diagram of the structure of the secondary conductor 28. Hereinafter, the damping device 10 will be described using FIGS. 1 to 4.

The seismic control device 10 is an earthquake countermeasure for buildings such as high-rise buildings and is installed between buildings. The damping device 10, as shown in FIG. 1, is installed inside the building. Specifically, it is provided between the upper structure 12 of the building and the lower structure 14 provided on the lower side of the upper structure 12 in the vertical direction. That is, the damping device 10 is provided in the space between the upper structure 12 and the lower structure 14. The upper structure 12 and the lower structure 14 vibrate integrally.

The damping device 10 has: a vibrating body 16, a restoring force mechanism 20, a vertical sliding mechanism 22 functioning as a first member guide mechanism, and a movable part of an induction type linear motor that is the primary coil of the first member The body 26, the secondary conductor 28 of the second member as the fixed part of the induction linear motor, the holding mechanism 24 that keeps the primary coil body 26 and the secondary conductor 28 within a certain interval, the detection edge The vibration detecting unit 30 of the vibration body 16 in the direction relative to the horizontal plane of the lower structure 14 and the control unit 32 controlling the induction type linear motor. The damping device 10 is a hybrid damping device having an active damping mechanism that actively damps vibrations by an induction type linear motor, and a passive damping mechanism that damps vibrations by a restoring force mechanism 20.

The vibrating body 16 is integrally connected with the primary coil body 26 which is a movable element of the induction type linear motor and moves. The vibrating body 16 vibrates together with the primary coil body 26 to contribute to vibration control. Vibrating body 16, which corresponds to its mass contribution to damping, is also called mass damping Device. The vibrating body 16 is suspended from the upper structure 12 by a plurality of pull cords 20 a and a plurality of pull cords 20 b via a frame member 18 arranged to cover the entire surface of the vibrating body 16 in the vertical direction and the horizontal direction. The plural cords 20a and the plural cords 20b function as supporting members. More specifically, the vibrating body 16 is suspended from the frame member 18 by a plurality of ropes 20 b, and the frame member 18 is suspended from the upper structure 12 by a plurality of ropes 20 a. The drawstring 20a and the drawstring 20b are tied to FIG. 1, and two each are drawn together, but it is not limited to this, and may be one or three or more. The frame member 18, the drawstring 20a, and the drawstring 20b are used to support the vibrating body 16 so as to be swayable relative to the upper structure 12, that is, to vibrate. When the vibrating body 16 vibrates, it acts as a restoring force for the pendulum The resilience mechanism 20 of the vibrating body 16 functions. That is, the restoring force mechanism 20 has a plurality of pull cords 20a and a plurality of pull cords 20b. The vibration damping device 10 has a restoring force mechanism 20, and the restoring force compensates for the vibration damping caused by the induction linear motor, and can suppress the power consumption of the induction linear motor.

The vibrating body 16 is provided with a cylindrical hole 16a on the lower surface in the vertical direction. The vibrating body 16 is arranged so that the vertical direction sliding mechanism 22 is inserted into the cylindrical hole 16a. The vertical sliding mechanism 22 is provided with a primary coil body 26 at an end portion opposite to the side where the vibrating body 16 is provided. That is, the vertical sliding mechanism 22 is provided between the lower part of the vibrating body 16 and the first member, that is, the primary coil body 26, and the vibrating body 16 and the primary coil body 26 are connected to be integrated. The vertical sliding mechanism 22 guides the movement of the primary coil body 26 relative to the vibrating body 16, and can prevent The vibrating body 16 falls off the primary coil body 26.

The holding mechanism 24, as shown in FIGS. 1, 2 and 3, has an X-axis movable guide rail 24x and a Y-axis movable guide rail 24y provided on the lower side of the X-axis movable guide rail 24x in the vertical direction. The holding mechanism 24 is in this embodiment, and the X-axis movable guide rail 24x is provided on the upper side in the vertical direction than the Y-axis movable guide rail 24y; however, it is not limited to this, and the X-axis movable guide rail 24x may be higher than the Y-axis The movable guide rail 24y is further provided on the lower side in the vertical direction. The X-axis movable guide rail 24x is set in the direction of the plane extending along the horizontal plane, and it is more preferable that the first direction of the horizontal direction, that is, the X-axis direction, is set in parallel. The X-axis movable guide rail 24x is in the direction of the plane extending along the horizontal plane. It is more preferable to slide in the second direction of the horizontal direction, that is, the Y-axis direction orthogonal to the X-axis direction. The width of the mechanism 22 is wider, and the interval is narrower than the width of the primary coil body 26. Hereinafter, the plane extending along the horizontal plane is called the XY plane. The Y-axis movable guide rail 24y is attached below the X-axis movable guide rail 24x, and two parallel rails are provided in the Y-axis direction. The Y-axis movable guide rail 24y is in the X-axis direction, and is provided on the secondary conductor 28 at an interval equal to the width of the secondary conductor 28.

The X-axis movable guide rail 24x is located on the lower side in the vertical direction except for both ends, and has a first groove 24xa. The first groove portion 24xa is fitted to the convex portion 26a provided on the upper side of the vertical direction of the primary coil body 26 so as to be slidable in the X-axis direction without departing from the vertical direction. Through this, the X-axis movable guide rail 24x is used to move the primary coil body 26 relative to the X-axis movable guide rail 24x in the X-axis direction, from the vertical direction The first direction holding mechanism for holding upwards functions.

The X-axis movable guide rail 24x is located on the lower side in the vertical direction at both ends, and has a second groove 24xy. The second groove portion 24xy is a convex portion fitted to the upper side of the vertical direction of the Y-axis movable guide rail 24y, and can slide in the Y-axis direction. Through this, the Y-axis movable guide rail 24y functions as a second direction holding mechanism that is relatively movable in the Y-axis direction with respect to the Y-axis movable guide rail 24y and holds the X-axis movable guide rail 24x.

The holding mechanism 24 is to hold the primary coil body 26 held on the X-axis movable guide rail 24x from the upper side in the vertical direction, and the secondary conductor 28 provided on the lower side of the Y-axis movable guide rail 24y in the vertical direction. The direction perpendicular to the plane, that is, the Z-axis direction, is maintained with an interval d. The interval d is an appropriate interval for the primary coil body 26 and the secondary conductor 28 to function as an induction type linear motor. The holding mechanism 24 is the X-axis movable guide rail 24x and the Y-axis movable guide rail 24y. The rigidity is high and the amount of deflection is small. For this reason, the distance between the primary coil body 26 and the secondary conductor 28 is kept within the allowable range of a suitable interval in order to function as an induction type linear motor. Through this, the induction linear motor system can be driven stably.

The primary coil body 26 is held by the holding mechanism 24 so as to oppose the secondary conductor 28. The secondary conductor 28 is perpendicular to the Z-axis direction at a distance d, and can be opposed to the lower structure 14 Move in the X-axis direction and Y-axis direction. The secondary conductor 28 is fixed to the surface of the lower structure 14, that is, on a plane extending in the horizontal direction. That is, the secondary conductor 28 is provided so as to be fixed on the lower structure 14 which becomes the XY plane, more preferably the horizontal plane. The first component is the primary coil body 26. It functions as a movable part in an induction-type linear motor; the second member, that is, a secondary conductor 28, functions as a fixed part in an induction-type linear motor. By driving the induction type linear motor, the primary coil body 26 can vibrate with respect to the secondary conductor 28 at high speed and long stroke. The first member, that is, the primary coil body 26, is integrally connected to the vibrating body 16 via the vertical sliding mechanism 22, and moves in the plane direction. For this reason, by driving an induction type linear motor, the vibrating body 16 can vibrate with respect to the lower structure 14 at a high speed and a long stroke.

The primary coil body 26 is integrated with the vibrating body 16 and is driven by an induction type linear motor to vibrate with respect to the lower structure 14. For this reason, the mass of the primary coil body 26 is combined with the mass of the vibrating body 16 and is included in the movable mass of the damping device 10. Therefore, the primary coil body 26 can contribute to vibration control according to its mass. In addition, the primary coil body 26 is only a part of its mass, and the movable mass necessary for the design of the vibration control device 10 can contribute to reducing the mass of the vibrating body 16.

The primary coil body 26 is shown in FIG. 4 and includes a first coil 26x and a second coil 26y. The primary coil body 26 is electrically connected to the control unit 32 via a lead wire 34. The wire 34 includes a wire 34x connecting the first coil 26x and the control unit 32, and a wire 34y connecting the second coil 26y and the control unit 32. In this embodiment, the first coil 26x and the second coil 26y are all three-phase coils, and three lead wires 34x and 34y are connected, and a three-phase AC voltage is applied to generate driving force. That is, the first coil 26x and the second coil 26y each have at least three The coil (the direction of winding the wire is the same coil), the current of the other phase is applied. Furthermore, the first coil 26x and the second coil 26y are not limited to this, as long as they can generate driving force in a predetermined direction.

The first coil 26x has its axis in the XY plane facing the Y-axis direction parallel to the current from the wire 34x to generate a magnetic force. The magnetic force generates an eddy current inside the secondary conductor 28, and the secondary conductor 28 is in the X-axis direction. The driving force occurs. The axis of the second coil 26y is oriented parallel to the X-axis direction on the XY plane and generates a magnetic force in accordance with the current from the wire 34y. In accordance with the magnetic force, an eddy current is generated in the secondary conductor 28, and the secondary conductor 28 is in the Y-axis direction. The driving force occurs. The first coil 26x and the second coil 26y are arranged so that the eddy current generated inside the secondary conductor 28 interferes with each other and the drive is not affected, and there is a sufficient interval. In this embodiment, the first coil 26x and the second coil 26y have their axial directions orthogonal to each other; however, it is not limited to this, and the axial directions may be different from each other. Through this, the primary coil body 26 can generate a driving force in any direction in the XY plane with respect to the secondary conductor 28. That is, because the primary coil body 26 can move in any direction in the XY plane relative to the secondary conductor 28, the vibrating body 16 can be vibrated in any direction in the XY plane relative to the lower structure 14 .

In this embodiment, the primary coil body 26 is provided with two coils with mutually different axial directions; however, it is not limited to this, and three or more coils may be provided. When the primary coil body 26 is provided with three or more coils, any two coils may have different axial directions. The primary coil body 26 is based on the driving force required for each direction in the XY plane In design, one or more coils can be arranged in each direction.

The secondary conductor 28 is a flat plate exemplified by an unmagnetized conductor of aluminum or copper. The secondary conductor 28 causes an eddy current to flow through the primary coil body 26. The secondary conductor 28 drives the primary coil body 26 in a direction parallel to the XY plane in accordance with the generated eddy current. The secondary conductor 28 is in a direction perpendicular to each axial direction of the primary coil body 26 and in a direction in the plane to generate force. Regardless of the number of coils included in the primary coil body 26, one piece of the secondary conductor 28 is sufficient as in the present embodiment, but two or more pieces may be provided. When two or more secondary conductors 28 are provided, they may be overlapped or arranged in the direction of the XY plane. The secondary conductor 28 does not require an external current, because there is no restriction on the structure of the vibration control device 10, and a wide range of designs can be achieved in accordance with the specifications of the vibration control device 10 such as the power supply and the structure of the building.

The vibration detection unit 30 is provided in the lower structure 14 opposed to the vibrating body 16 in this embodiment; however, it is not limited to this, and may be provided in the vibrating body 16 opposed to the lower structure 14. The vibration detection unit 30 is electrically connected to the control unit 32, detects the vibration of the vibrating body 16 in the direction of the XY plane of the lower structure 14, and sends information about the detected vibration in the direction of the XY plane to the control unit 32.

The control unit 32 is connected to the first coil 26x via the lead wire 34x, and can flow current to the first coil 26x via the lead wire 34x. The control unit 32 is connected to the second coil 26y via the lead wire 34y, and can flow current to the second coil 26y via the lead wire 34y. The control unit 32 is electrically connected to the vibration detection unit 30. Control unit 32, from the earthquake The motion detection unit 30 receives information on the vibration in the direction of the XY plane detected by the vibration detection unit 30. Based on the received vibration information in the direction of the XY plane, the control unit 32 flows a specified current through the wire 34x and the wire 34y, and vibrates the primary coil body 26 with respect to the secondary conductor 28 in the direction to eliminate the vibration.

The vibration control device 10 of the first embodiment has the above-mentioned configuration. When the seismic control device 10 receives seismic force, first, the vibration detection unit 30 detects the vibration in the direction of the XY plane of the lower structure 14 caused by the seismic force. In the vibration control device 10, next, the control unit 32 flows a specified current through the wire 34x and the wire 34y based on the detected vibration in the direction of the XY plane, and makes the primary coil body 26 relative to the secondary The conductor 28 vibrates. In this way, the damping device 10 reduces the vibration of the building due to the seismic force. Regarding the vibration control device 10 of the first embodiment, the vibration body 16 and the primary coil body 26 are driven by the induction type linear motor including the primary coil body 26 and the secondary conductor 28, so that the vibration body 16 and the primary The coil body 26 vibrates in an arbitrary direction in the horizontal plane at a high speed and a long stroke relative to the secondary conductor 28. Therefore, the seismic control device 10 according to the first embodiment can cope with the long-period earthquakes required in recent years.

FIG. 5 is a diagram showing the configuration of a vibration control device 40 according to a second embodiment of the present invention. Regarding the damping device 40 of the second embodiment, in the damping device 10 of the first embodiment, the holding mechanism 24 is changed to a ball bearing 42 as the holding mechanism. The damping device 40 of the second embodiment is accompanied by this, and in the first embodiment In the vibration damping device 10 of the formula, the primary coil body 26 is modified to have no convex portion 26a on the upper side in the vertical direction. Regarding the vibration control device 40 of the second embodiment, the same component symbols as those of the first embodiment are used in the same configuration as the first embodiment, and detailed descriptions thereof are omitted.

In this embodiment, the ball bearings 42 are provided at four locations on the lower side in the vertical direction of the primary coil body 26; however, it is not limited to this, and may be provided at three or more locations. The ball bearing 42 is rotated on the upper surface of the secondary conductor 28. The primary coil body 26 is integrally connected with the vibrating body 16, and the ball bearing 42 rotates on the upper surface of the secondary conductor 28 at a distance d that matches the length of the ball bearing 42 in the Z-axis direction. The inner surface of the secondary conductor 28 moves in an arbitrary direction in the XY plane. That is, the ball bearing 42 is capable of maintaining a proper interval between the primary coil body 26 and the secondary conductor 28 within the allowable range, so that the primary coil body 26 can be in the horizontal plane with respect to the secondary conductor 28. Because of the way of moving in any direction, it is possible to stably drive an induction type linear motor.

Regarding the damping device 40 of the second embodiment, in the damping device 10 related to the first embodiment, the holding mechanism 24 is changed to the ball bearing 42 as the holding mechanism, so it becomes unnecessary to consider being included in The amount of deflection of the X-axis movable guide rail 24x and the Y-axis movable guide rail 24y of the holding mechanism 24. Furthermore, the vibration control device 40 of the second embodiment does not require the X-axis movable guide rail 24x and the Y-axis movable guide rail 24y. Compared with the vibration control device 10 of the first embodiment, the induction type linear motor The sliding surface during driving is reduced and the structure becomes simpler. Therefore, the vibration control device 40 of the second embodiment is more Regarding the vibration damping device 10 of the first embodiment, because the design becomes easier, it is possible to have a wider design according to the specifications of the vibration damping device 40 such as the power supply and the structure of the building.

Fig. 6 is a diagram showing the configuration of a vibration control device 50 according to a third embodiment of the present invention. FIG. 7 is a diagram showing the structure of the restoring force mechanism 54 used in the vibration control device 50 according to the third embodiment of the present invention. Regarding the vibration damping device 50 of the third embodiment, in the damping device 10 related to the first embodiment, the vibrating body 16, the frame member 18, and the restoring force mechanism 20 are changed to the vibrating body 52 and the restoring force mechanism 54, except Drop the vertical sliding mechanism 22. Regarding the vibration control device 50 of the third embodiment, the same component symbols as those of the first embodiment are used for the same configuration as the first embodiment, and detailed descriptions thereof are omitted.

As shown in FIG. 6, the vibrating body 52 does not have the cylindrical hole 16 a in the vibrating body 16 and there is no place to hang the rope 20 b, and it has a simpler shape than the vibrating body 16. The vibrating body 52 is on the lower side in the vertical direction, and is provided with a primary coil body 26 directly connected, and moves integrally with the primary coil body 26. The holding mechanism 24 including the X-axis movable guide rail 24x and the Y-axis movable guide rail 24y supports all the movable masses of the vibrating body 52 and the primary coil body 26 because the vibrating body 52 is not suspended by the drawstring 20b. For this reason, the holding mechanism 24 used in the damping device 50 of the third embodiment has higher rigidity and a smaller amount of deflection than the holding mechanism 24 used in the damping device 10 of the first embodiment. The composition.

The restoring force mechanism 54 is shown in FIG. 7 and has: relative to the vibrating body 52 and the primary coil body 26 in the first direction that is the X-axis direction The restoring force mechanism 54x in the X-axis direction that imparts restoring force, and the restoring force mechanism 54y in the Y-axis direction that imparts restoring force to the vibrating body 52 and the primary coil body 26 in the second direction, that is, the Y-axis direction. The X-axis direction restoring force mechanism 54x is located on both sides of the X-axis direction of the vibrating body 52, and has: two X-axis direction coil springs 56x arranged in the X-axis direction and opposite to each other, and two fixed and two X-axis direction coil springs The vibration body 52 of 56x is two X-axis direction coil spring fixing parts 58x at each end on the opposite side. The two X-axis direction coil spring fixing portions 58x are respectively fixed to both ends of the upper surface of the X-axis movable rail 24x in the vertical direction. Two coil springs 56x in the X-axis direction directly support the vibrating body 52.

The Y-axis direction restoring force mechanism 54y is located at both ends of each X-axis movable guide rail 24x in the X-axis direction, and has four Y-axis direction coil springs 56y arranged in the Y-axis direction and opposite to each other, and fixed and The X-axis movable guide rail 24x of the four Y-axis direction coil springs 56y is the four Y-axis direction coil spring fixing parts 58y at each end on the opposite side. The four Y-axis direction coil spring fixing portions 58y are respectively fixed to both ends of the vertical upper surface of each Y-axis movable guide rail 24y. The four Y-axis direction coil springs 56y support the vibrating body 52 via two X-axis movable guide rails 24x.

The restoring force mechanism 54 is a vibrating body 52 that can apply the elastic force of each coil spring 56x, 56y as a restoring force, and is supported by two X-axis direction coil springs 56x and four Y-axis direction coil springs 56y. The vibration damping device 50 of the third embodiment has a restoring force mechanism 54 and is related to the first embodiment having a restoring force mechanism 20 The vibration damping device 10 of the same, the restoring force compensates for the damping caused by the induction linear motor, which can suppress the power consumption of the induction linear motor. Regarding the vibration damping device 50 of the third embodiment, in the damping device 10 related to the first embodiment, the vibrating body 16, the frame member 18, and the restoring force mechanism 20 are changed to the vibrating body 52 and the restoring force mechanism 54, except Because the vertical sliding mechanism 22 is dropped, the height in the Z-axis direction of the entire device becomes lower. For this reason, the vibration control device 50 according to the third embodiment can reduce the installation space in the height direction required by the vibration control device 10 according to the first embodiment.

FIG. 8 is a diagram showing the configuration of a vibration control device 60 according to a fourth embodiment of the present invention. The vibration damping device 60 of the fourth embodiment is related to the vibration damping device 40 of the second embodiment. The vibrating body 16 is changed to the vibrating body 62, and the frame member 18, the restoring force mechanism 20, and the vertical sliding mechanism are removed 22 persons. Regarding the vibration control device 60 of the fourth embodiment, the same component symbols as those of the second embodiment are used for the same configuration as that of the second embodiment, and detailed descriptions thereof are omitted.

Regarding the damper device 60 of the fourth embodiment, because it does not have a restoring force mechanism, there is no passive type damper mechanism. For this reason, the vibration control device 60 of the fourth embodiment is an active vibration control device having an active vibration control mechanism that actively controls vibration by an induction type linear motor. The shock absorbing device 60 of the fourth embodiment does not have a restoring force mechanism. Like the shock absorbing device 40 of the second embodiment, when an earthquake force is received, first, the vibration detecting unit 30 detects the vibration generated by the seismic force. Vibration in the direction of the XY plane of the lower structure 14. Damping device 40 is attached, Based on the detected vibration in the direction of the XY plane, the control unit 32 flows a predetermined current through the lead wire 34x and the lead wire 34y, and vibrates the primary coil body 26 with respect to the secondary conductor 28 in a direction to eliminate the vibration. In this way, the damping device 40 reduces the vibration of the building due to the seismic force. The vibration control device 60 of the fourth embodiment is the same as the vibration control device 40 of the second embodiment. The vibration body 62 and the primary coil are driven by the induction type linear motor including the primary coil body 26 and the secondary conductor 28 Because of the body 26, the vibrating body 62 and the primary coil body 26 can be vibrated in any direction in the XY plane at a high speed and a long stroke relative to the secondary conductor 28. Therefore, the vibration control device 60 according to the fourth embodiment is similar to the vibration control device 40 according to the second embodiment, and can cope with the long-period earthquakes required in recent years.

The vibration damping device 60 of the fourth embodiment is related to the vibration damping device 40 of the second embodiment. The vibrating body 16 is changed to the vibrating body 62, and the frame member 18, the restoring force mechanism 20, and the vertical sliding mechanism are removed Because of 22, the height in the Z-axis direction of the entire device becomes low. For this reason, the vibration control device 60 according to the fourth embodiment can reduce the installation space in the height direction required by the vibration control device 40 according to the second embodiment. The damping device 60 of the fourth embodiment is designed to be easier than the damping device 40 of the second embodiment, and the specifications of the damping device 60 can be adapted to the power supply and the structure of the building. Extensive design.

FIG. 9 is a diagram showing the configuration of a vibration control device 70 according to a fifth embodiment of the present invention. About the vibration control device of the fifth embodiment 70. In the damping device 50 according to the third embodiment, the restoring force mechanism 54 is removed. Regarding the vibration control device 70 of the fifth embodiment, the same component symbols as those of the third embodiment are used in the same configuration as that of the third embodiment, and detailed descriptions thereof are omitted.

Regarding the vibration control device 70 of the fifth embodiment, because it does not have a restoring force mechanism, there is no passive type vibration control mechanism. For this reason, the vibration control device 70 of the fifth embodiment is an active vibration control device having an active vibration control mechanism that actively controls vibration by an induction type linear motor. The damper device 70 of the fifth embodiment does not have a restoring force mechanism, and similarly, it has the same effect as the damper device 60 of the fourth embodiment that does not have a restoring force mechanism.

The damping device 70 of the fifth embodiment is related to the damping device 50 of the third embodiment. Because the restoring force mechanism 54 is removed, the design is changed compared to the damping device 50 of the third embodiment. For the sake of ease, it is possible to have a wider design according to the specifications of the shock absorbing device 70 such as the power supply and the structure of the building.

Fig. 10 is a diagram showing the configuration of a vibration control device 80 according to a sixth embodiment of the present invention. Regarding the vibration damping device 80 of the sixth embodiment, in the vibration damping device 10 of the first embodiment, the vibrating body 16 and the secondary conductor 28 are changed to the vibrating body 82 and the secondary conductor 84, except for vertical sliding Organization 22 and holding organization 24. Regarding the vibration control device 80 of the sixth embodiment, the same component symbols as those of the first embodiment are used for the same configuration as that of the first embodiment, and detailed descriptions thereof are omitted.

Vibrating body 82, shown in Figure 10, does not have a vibrating body The cylindrical hole 16a in 16 is directly provided with the primary coil body 26 on the lower surface in the vertical direction. In addition, the vibrating body 82 is suspended by the supporting members, namely, the pull cord 20a and the pull cord 20b. For this reason, the vibrating body 82 is integrally connected with the primary coil body 26 to swing. The restoring force mechanism 20 supports all the movable masses of the vibrating body 82 and the primary coil body 26. The secondary conductor 84 has a downwardly convex curved surface 84a provided on the upper surface.

In the base state, the bottom surface of the lower side of the primary coil body 26 in the vertical direction is parallel to the XY plane, and is arranged at the bottom of the downward convex curved surface 84a, that is, the area parallel to the central XY plane and is separated in the Z axis direction. The position opposite to the interval d. The primary coil body 26 is oscillated, the bottom surface is inclined with respect to the XY plane, and the interval between the lower structure 14 on the bottom surface changes. The downwardly convex curved surface 84a is distributed in the inclined XY plane, and corresponds to the inclination corresponding to the shaking of the primary coil body 26. The downwardly convex curved surface 84a is distributed in the XY plane of the height relative to the lower structure 14 and corresponds to the interval of the lower structure 14 corresponding to the swing of the primary coil body 26. For this reason, the primary coil body 26 and the secondary conductor 84 can be kept at a distance d, and the bottom surface of the primary coil body 26 and the downwardly convex curved surface 84a are opposed to each other and vibrate with each other. That is, the restoring force mechanism 20 and the downwardly convex curved surface 84a function as a holding mechanism.

The vibration control device 80 of the sixth embodiment is related to the vibration control device 10 of the first embodiment. The vertical sliding mechanism 22 is removed, and the restoring force mechanism 20 and the downwardly convex curved surface 84a are made non-contacting Because of the function of the holding mechanism, there is no primary coil body The sliding between 26 and the secondary conductor 84 makes the movement of the primary coil body 26 relative to the secondary conductor 84 smooth.

FIG. 11 is a diagram showing the configuration of a vibration control device 90 according to a seventh embodiment of the present invention. The vibration control device 90 of the seventh embodiment is the vibration control device 60 of the fourth embodiment in which the secondary conductor 28 is changed to the secondary conductor 92. Regarding the vibration control device 90 of the seventh embodiment, the same component symbols as those of the fourth embodiment are used for the same configuration as that of the fourth embodiment, and detailed descriptions thereof are omitted.

The secondary conductor 92 has a downwardly convex curved surface 92a provided on the upper surface. The vibrating body 62 and the primary coil body 26 move on the downwardly convex curved surface 92a in a manner that the ball bearing 42 rotates. In the base state, the bottom surfaces of the vibrating body 62 and the primary coil body 26 in the vertical direction are parallel to the XY plane, and are arranged at the bottom of the downward convex curved surface 92a, that is, the area parallel to the central XY plane and in the Z A position facing each other with an interval d in the axial direction. If the vibrating body 62 and the primary coil body 26 are separated from the base state on the downwardly convex curved surface 92a, the ball bearing 42 can be received back to the base state by rotating the ball bearing 42 on the downwardly convex curved surface 92a toward the ground state. State resilience. That is, the downwardly convex curved surface 92a functions as a restoring force mechanism. The curvature of the downwardly convex curved surface 92a determines the natural period of the vibration of the vibrating body 62 and the primary coil body 26 moving thereon. For this reason, the curvature of the downwardly convex curved surface 92a is designed such that the natural period of vibration of the vibrating body 62 and the primary coil body 26 is close to the natural period of vibration of the building.

The damping device 90 of the seventh embodiment is convex downward The curvature of the curved surface 92a functions as a restoring force mechanism, which gives the vibrating body 62 and the natural period of the primary coil body 26 close to the natural period of the vibration of the building, which is related to the vibration control of the fourth embodiment. Compared with the device 60, on the one hand, it keeps the design easy, and can obtain a higher damping function.

Fig. 12 is a diagram showing the configuration of a vibration control device 100 according to an eighth embodiment of the present invention. Regarding the vibration control device 100 of the eighth embodiment, in the vibration control device 10 of the first embodiment, the first member is changed from the primary coil body 26 to the secondary conductor 126, and the second member is changed from the secondary conductor 28 Those who make a primary coil body 128. In other words, the primary coil body and secondary conductor are exchanged. The damping device 100 of the eighth embodiment is accompanied by this. In the damping device 10 of the first embodiment, the lead wire 34 that electrically connects the first member, that is, the primary coil body 26 and the control unit 32 , It is changed to a lead wire 134 that electrically connects the second member, that is, the primary coil body 128 and the control unit 32. Regarding the vibration control device 100 of the eighth embodiment, the same component symbols as those of the first embodiment are used in the same configuration as the first embodiment, and detailed descriptions thereof are omitted.

The first member, that is, the secondary conductor 126, functions as a movable element in the induction-type linear motor, and the second member, which is the primary coil body 128, functions as a fixed member in the induction-type linear motor. The secondary conductor 126 has the same structure as the secondary conductor 28. The primary coil body 128 has the same structure as the primary coil body 26, but since the primary coil body 26 expands in the horizontal direction, a larger number of coils can be covered more than the primary coil body 26. Wire 134, which is covered with primary coil body 128 Because the number of coils is larger than the number of coils included in the primary coil body 26, there are more wires than the lead wires 34.

The vibration control device 100 of the eighth embodiment has the above-mentioned configuration. For this reason, when the vibration control device 100 receives seismic force, first, the vibration detection unit 30 detects the vibration in the direction of the XY plane of the lower structure 14 caused by the seismic force. In the vibration control device 100, the control unit 32 then flows a specified current through the wire 134 based on the detected vibration in the XY plane, and vibrates the secondary conductor 126 with respect to the primary coil body 128 in a direction to eliminate the vibration. In this way, the seismic control device 100 reduces the vibration of the building due to the seismic force. Regarding the vibration control device 100 of the eighth embodiment, the vibration body 16 and the secondary conductor 126 are driven by the induction type linear motor including the secondary conductor 126 and the primary coil body 128, so that the vibration body 16 and the secondary conductor 126 vibrates in any direction in the horizontal plane at a high speed and a long stroke relative to the primary coil body 128. Therefore, the seismic control device 100 of the eighth embodiment can cope with the long-period earthquakes required in recent years.

The damping devices related to the ninth to fourteenth embodiments are in the damping devices 40, 50, 60, 70, 80, and 90 related to the second to seventh embodiments, respectively. The coil body 26 is changed to the secondary conductor 126, and the second member is changed from the secondary conductor 28 to the primary coil body 128. That is, all of them are those that exchange the primary coil body and the secondary conductor. The damping devices related to the ninth to fourteenth embodiments are accompanied by this, in each of the damping devices 40, 50, 60, 70, 80, and 90 related to the second to seventh embodiments, the first 1 component is the 1st line The wire 34 electrically connected to the coil body 26 and the control unit 32 is changed to a wire 134 that electrically connects the second member, that is, the primary coil body 128 and the control unit 32. The damping devices related to the ninth to fourteenth embodiments use the same component symbols as those in the second to seventh embodiments in the same configuration as the second to seventh embodiments, and the details are omitted. instruction of.

The damping devices according to the ninth to fourteenth embodiments have the above-mentioned configuration. On the one hand, they are driven in the same manner as the damping device 100 according to the eighth embodiment. The same effects as those of the vibration control devices 40, 50, 60, 70, 80, and 90 of the seventh embodiment.

10: Vibration damping device

12: Upper structure

14: Lower structure

16: Vibrating body

16a: hole

18: Frame member

20: Resilience agency

20a, 20b: drawstring

24: Keep the organization

24x: X-axis movable rail

24y: Y-axis movable guide rail

24xy: the second groove

26:1 secondary coil body

28: Secondary conductor

30: Vibration Detection Department

32: Control Department

34: Wire

Claims (3)

A vibration damping device has: a vibrating body that is supported by a structure to be vibrated; a first member is connected to the vertical lower surface of the vibrating body, and is connected to the vibrating body to move; second The member is spaced below the first member and fixed to the surface of the structure, that is, a plane extending in the horizontal direction; the holding mechanism restricts the vertical relative movement of the first member and the second member , Keep the distance between the first member and the second member within a certain range; the vibration detection unit detects the vibration of the vibrating body in the direction relative to the plane of the structure; and the control unit makes the aforementioned The first member vibrates with respect to the second member in a direction in which the vibration in the direction of the plane detected by the vibration detection unit is eliminated; any one of the first member and the second member is set in the axial direction The primary coil body parallel to the aforementioned plane; the other of the aforementioned first member and the aforementioned second member cooperates with the magnetic force generated by the aforementioned primary coil body and is perpendicular to the aforementioned axial direction with respect to the aforementioned primary coil body The second conductor that generates force in the direction of the plane and the direction in the aforementioned plane; the aforementioned holding mechanism has: a supporting member, which is arranged between the aforementioned structure and the aforementioned vibrating body, and suspends and supports the aforementioned vibrating body relative to the aforementioned structure Can be shaken; and The downwardly convex curved surface is provided on the upper surface of the second member fixed to the structure; the curved surface cooperates with the shaking of the first member connected to the vibrating body, and maintains the first member and the second member. 2 The inclination of the distance between the components; the aforementioned control unit, based on the vibration detected by the aforementioned vibration detection unit, flows a specified current through the wire to the aforementioned primary coil body, and cooperates with the aforementioned specified current to generate magnetic force on the aforementioned primary coil body Cooperate with the magnetic force generated in the primary coil body to cause eddy current to occur inside the secondary conductor, and cooperate with the eddy current inside the secondary conductor to drive the primary coil body in the direction of the plane, thereby The primary coil body is made to vibrate with respect to the secondary conductor, and the vibrating body and the first member are made to vibrate with respect to the second member in a direction that eliminates the vibration detected by the vibration detecting unit. The vibration control device according to claim 1, wherein the primary coil body includes a first coil and a second coil whose axial direction is different from the first coil. The shock-absorbing device of claim 1 or claim 2, which further has: a first member guide mechanism, which is provided between the lower part of the vibrating body and the first member, and connects the vibrating body and the first member , The first member is moved to follow the horizontal direction of the vibrating body.

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