CN110054057B - Elevator device - Google Patents
Elevator device Download PDFInfo
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- CN110054057B CN110054057B CN201811327992.3A CN201811327992A CN110054057B CN 110054057 B CN110054057 B CN 110054057B CN 201811327992 A CN201811327992 A CN 201811327992A CN 110054057 B CN110054057 B CN 110054057B
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- long
- long object
- vibration suppression
- car
- suppression device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0266—Passive systems
- B66B11/0273—Passive systems acting between car and supporting frame
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- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides an elevator device which can restrain vibration of a long object under the state of not stopping a car by a simple structure without using a motor. The long article vibration suppressing device includes a frame, a rotating shaft, a long article contact body, a plurality of springs, a control unit, and a holding unit. The rotation shaft is guided by the guide groove of the frame and moves, and the long object contact body rotates around the rotation shaft, and can move to a vibration suppression position protruding toward the long object side to suppress vibration of the long object and a standby position disposed on the inner wall surface side of the lifting channel. The plurality of springs are attached to the long object contact body and the structure frame, and are balanced in tension in a state where the long object contact body is located at the vibration suppression position. The restoring engagement portion provided in the car or the counterweight engages with the long object contact body by the lifting and lowering of the car or the counterweight, and moves the long object contact body to the standby position.
Description
Technical Field
The present invention relates to an elevator apparatus.
Background
An elevator apparatus for suppressing vibration of a rope is described in patent document 1, for example. The elevator apparatus described in patent document 1 includes: a main rope capable of moving bidirectionally by a hoist; a car and a counterweight respectively suspended at both ends of the main rope; a compensating sling connecting the lower part of the cage and the lower part of the balance weight; and a lower sheave that applies tension to the compensating sling.
The elevator apparatus described in patent document 1 includes a vibration suppression device for preventing vibration of the main rope above the car and the compensating rope below the car. The vibration suppression device includes: a horizontal tilting drive shaft disposed outside the front surface of the lifting rail of the car; a tilt arm supported by the tilt drive shaft; and a suspension rope vibration suppression fixing part surrounding the lifting rail of the car.
The tilting arm of the vibration suppression device is rotated from a state substantially parallel to the lifting track of the car to a state substantially orthogonal to the lifting track of the car. In addition, a recess is formed in the tilt arm from the side remote from the tilt drive shaft so as not to interfere with the desired trajectory of the main rope or compensating cable when turning. The recess of the tilt arm has a tapered portion that is tapered from a side away from the tilt drive shaft.
Prior art documents
Patent document
Patent document 1: japanese patent laid-open No. 2001-316058
Problems to be solved by the invention
However, since the elevator apparatus described in patent document 1 uses a motor having a drive shaft for operating the tilt arm, the structure of the vibration suppression apparatus is increased in size, and it is difficult to arrange the vibration suppression apparatus in a narrow portion. In addition, the entire structures of the vibration suppression device and the elevator device become complicated.
Disclosure of Invention
The invention aims to provide an elevator device which can restrain vibration of a long object under the state of not stopping a car by a simple structure without using a motor.
Solution scheme
In order to solve the above problems and achieve the object of the present invention, an elevator apparatus according to the present invention is configured to drive a car and a counterweight to ascend and descend in mutually different directions by using a long article in an ascending/descending passage. The elevator device further includes a long-article vibration suppression device provided on an inner wall surface of the hoistway, and a restoration engagement portion provided on the car or the counterweight.
The long article vibration suppressing device includes a frame, a rotating shaft, a long article contact body, a plurality of springs, a control unit, and a holding unit. The structural frame is provided with two side surface parts which are opposite to each other and a guide groove which is formed on the two side surface parts. The rotating shaft is movably guided by the guide groove. The long object contact body rotates around the rotation shaft, and can move to a vibration suppression position protruding toward the long object side to suppress vibration of the long object and a standby position arranged on the inner wall surface side of the lifting channel.
The plurality of springs are attached to the long object contact body and the structure frame, and are balanced in tension in a state where the long object contact body is located at the vibration suppression position. The control unit outputs an operation command when the long article vibrates to a threshold value. The holding unit holds the long object contact body disposed at the standby position or the rotating shaft when the long object contact body is disposed at the standby position, and releases the holding of the long object contact body or the rotating shaft by receiving the operation command. The guide groove of the frame guides the movement of the rotary shaft so as to displace the position of the rotary shaft in the horizontal direction. The returning engagement portion engages with the long object contact body by the lifting of the car or the counterweight, and moves the long object contact body to the standby position.
Effects of the invention
According to the present invention, since the long object contact body is operated without using a motor, vibration of the long object can be suppressed with a simple configuration. Problems, structures, and effects other than those described above will become apparent from the following description of the embodiments.
Drawings
Fig. 1 is a schematic configuration diagram showing an elevator apparatus according to a first embodiment of the present invention.
Fig. 2 is a cross-sectional view of the hoistway in the elevator apparatus shown in fig. 1 in a state where the car is stopped at a floor.
Fig. 3 is a cross-sectional view of a hoistway in a state where a car is positioned between floors in the elevator apparatus shown in fig. 1.
Fig. 4 is a perspective view showing a vibration suppression state of the long article vibration suppression device in the elevator apparatus according to the first embodiment of the present invention.
Fig. 5 is a perspective view showing a standby state of the long article vibration suppression device in the elevator apparatus according to the first embodiment of the present invention.
Fig. 6 is a perspective view showing a long article vibration suppression device according to a second embodiment of the present invention.
Description of reference numerals:
1 … elevator apparatus, 2 … car, 3 … counterweight, 4 … control section, 5 … hoist, 6 … main rope, 7 … compensating rope, 8, 48 … long article vibration suppressing device, 10 … guide stick pushing section (restoring engaging section), 11 … guide stick pressing section (restoring engaging section), 12A, 12B … car guide rail, 13A … counterweight guide rail, 14 … doorsill, 21 … structure frame, 21A … back section, 21B, 21C … side section, 22 … rotating shaft, 23, 53 … long article contact body, 27A, 27B … first holding section, 28A, 28B … second holding section, 31A, 31B …, 33A, 33B, 63A, 63B … arm section, 34, 64 … connecting member, 35A, 35B … guide stick 36A, 36B … holding section, 37A 67 … guide groove, 67A, 39 … B4638 roller rotating shaft section, 100 … elevator shaft, 110 … machine room.
Detailed Description
Hereinafter, an embodiment in the case where the main rope is a long object will be described with reference to the drawings. The present invention is not limited to the following examples.
1. First embodiment
1-1 integral structure of elevator apparatus
Fig. 1 is a schematic configuration diagram showing an elevator apparatus 1 according to the present embodiment. Fig. 2 is a sectional view of the hoistway in a state where the car 2 is stopped at a floor. Fig. 3 is a sectional view of the hoistway in a state where the car 2 is positioned between floors.
As shown in fig. 1, the elevator apparatus 1 includes a car 2 and a counterweight 3 that are raised and lowered in a hoistway 100, a hoist 5 disposed in a machine room 110, a main rope 6, a compensating rope 7, and a long-article vibration suppression device 8.
[ Up-down passage ]
The hoistway 100 is a space that serves as a passage for the car 2 to ascend and descend, and is provided to vertically penetrate each floor in the building. A pair of car guide rails 12A and 12B (see fig. 2) for guiding the up-and-down movement of the car 2 are attached to the inner wall surface of the elevator shaft 100. Further, hoistway doors (not shown) leading to the respective floors are provided at height positions corresponding to the respective floors on the wall surface of the hoistway 100.
[ Car ]
The car 2 is used for placing people or goods and is accommodated in the hoistway 100 in a state of being supported by the main rope 6. A compensating rope 7 is attached to the lower part of the car 2. The car 2 is guided by a pair of car guide rails 12A and 12B provided on the inner wall surface of the elevator shaft 100 and ascends and descends in the elevator shaft 100 in the vertical direction.
A car door (not shown) is provided on a side surface of the car 2 at a position corresponding to the hoistway door. When the car 2 stops at each floor, a car door and a hoistway door are opened to allow a person or cargo to enter and exit.
Further, a guide rod push-up portion 10 is provided in an upper portion of the car 2. The guide roller push-up portion 10 is engaged with guide rollers 35A and 35B of the long product vibration suppression device 8, which will be described later, by the ascent of the car 2.
Further, a guide rod pressing portion 11 is provided at a lower portion of the car 2. The guide roller holding portion 11 is engaged with guide rollers 35A and 35B of the long product vibration suppression device 8, which will be described later, by the lowering of the car 2. The guide roller pushing portion 10 and the guide roller pushing portion 11 show a specific example of the restoration engaging portion of the present invention.
[ balance weight ]
The counterweight 3 is provided to balance with the car 2, and is accommodated in the hoistway 100 while being supported by the main rope 6. That is, the main rope 6 connects the car 2 and the counterweight 3. Further, a compensating rope 7 is attached to the bottom of the counterweight 3. Therefore, the lower part of the counterweight 3 and the lower part of the car 2 are connected by the compensating rope 7.
A pair of balance weight guide rails 13A and 13B (see fig. 2) are provided in the hoistway 100 so as to extend in the vertical direction of the hoistway 100. Thereby, the counterweight 3 is guided by the pair of counterweight guide rails 13A and 13B and ascends and descends in the vertical direction in the ascending and descending passage 100.
[ hoisting machine and control part ]
The hoisting machine 5 is disposed in a machine room 110 provided above the hoistway 100. The hoist 5 has a sheave around which the main rope 6 is wound, and raises and lowers the car 2 and the counterweight 3 in a bucket type via the main rope 6. The machine room 110 is provided with a control unit 4 for operating the long article vibration suppression device 8. The control unit 4 is configured integrally with a control unit that controls driving of the hoisting machine 5.
[ device for suppressing vibration of long article ]
The long article vibration suppression device 8 is provided on the entrance side surface of the portion between floors in the inner wall surface of the hoistway 100. The long article vibration suppression device 8 is in a standby state in which it is folded when it is flat, i.e., when it is not operating, and has a structure in which it does not come into contact even when the car 2 passes near it. When it is determined that a long-term earthquake or the like has occurred and the building has rocked and the vibration of the main rope 6 has reached the threshold value, the long-term vibration suppression device 8 enters a vibration suppression state of being deployed in the hoistway 100, and suppresses the vibration of the main rope 6 so as not to increase to a certain level or more.
As shown in fig. 2, a rocker 14 is provided on an inner wall of the four inner walls in the hoistway 100, the inner wall facing the door surface of the car 2 in a state where the car 2 is stopped at a floor. On the other hand, as shown in fig. 3, the long-article vibration suppression device 8 is provided on the inner wall surface between floors of the hoistway 100 on which the rocker 14 is provided.
The long-article vibration suppression device 8 is designed to have a size not larger than the protruding dimension of the rocker 14 shown in fig. 2. Therefore, the long article vibration suppression device 8 can be installed without enlarging the hoistway 100, and the long article vibration suppression device 8 can be additionally installed in an existing elevator apparatus.
1-2. structure of device for suppressing vibration of long article
Next, the structure of the long product vibration suppression device 8 in the present embodiment will be described. Fig. 4 is a perspective view showing a vibration suppression state of the long article vibration suppression device 8. Fig. 5 is a perspective view showing a standby state of the long article vibration suppression device.
As shown in fig. 4 and 5, the long article vibration suppression device 8 includes a configuration frame 21, a rotation shaft 22, a long article contact 23, a plurality of springs 24A, 24B, 25A, and 25B, the control unit 4, first holding units 27A and 27B, and second holding units 28A and 28B.
[ Structure frame ]
The frame 21 has a back surface portion 21A and two side surface portions 21B and 21C continuous with the back surface portion. The back surface portion 21A is formed of a plate body formed in a vertically long rectangular shape, one plane faces the entrance side surface of the inner wall surface of the hoistway 100, and the other plane faces the main rope 6. The two side portions 21B and 21C are continuous with both sides of the back portion 21A in the horizontal direction and protrude substantially perpendicularly to the other plane of the back portion 21A.
The two side surface portions 21B and 21C are each formed of a plate body formed in a vertically long rectangular shape, and are opposed to each other in plane. The length of the two side surface portions 21B and 21C protruding from the back surface portion 21A (the length of the side extending in the horizontal direction) is equal to or less than the protruding dimension of the rocker 14 as described with reference to fig. 2 and 3. In the standby state, the rotary shaft 22, the long object contact 23, and the plurality of springs 24A, 24B, 25A, and 25B are housed between the two side surface portions 21B and 21C (see fig. 5).
[ rotation axis ]
The rotation shaft 22 is formed in a circular bar shape, and the axial center thereof intersects the plane of the side surface portions 21B and 21C substantially perpendicularly. Both end portions of the rotary shaft 22 are movably engaged with the guide grooves 31A and 31B. The rotary shaft 22 is rotatably supported by the side surface portions 21B and 21C by engaging with the guide grooves 31A and 31B.
[ contact body for long article ]
The long object contact 23 includes arm portions 33A and 33B connected to both end portions of the rotating shaft 22, and a connecting member 34 connecting the arm portions 33A and 33B. The long object contact 23 is configured to rotate about the rotation shaft 22, and is movable to a vibration suppression position protruding toward the main rope 6 to suppress vibration of the main rope 6 and a standby position disposed on the inner wall surface side of the hoistway 100 (the rear surface portion 21A side of the structure frame 21).
When the long-article contact 23 is placed at the standby position, the long-article vibration suppression device 8 is in the standby state shown in fig. 5, and when the long-article contact 23 is placed at the vibration suppression position, the long-article vibration suppression device 8 is in the vibration suppression state shown in fig. 4.
The arm portions 33A and 33B are formed in a prism shape extending substantially perpendicular to the axial direction of the rotary shaft 22, and face each other with an appropriate distance therebetween. One end in the longitudinal direction of the arm portions 33A, 33B is connected to the rotating shaft 22, and the other end in the longitudinal direction of the arm portions 33A, 33B is a free end.
The guide rollers 35A and 35B engage with the guide roller push-up portion 10 or the guide roller push-down portion 11 provided in the car 2. When the guide rollers 35A and 35B are engaged with the guide roller pushing-up portion 10, the long object contact body 23 is pushed up in conjunction with the raising of the car 2. On the other hand, when the guide rollers 35A and 35B are engaged with the guide roller pressing portion 11, the long object contact body 23 is pressed in conjunction with the lowering of the car 2.
The free end side ends of the arm portions 33A and 33B are provided with gripping portions 36A and 36B. The holding portions 36A and 36B are formed in a columnar shape protruding from surfaces of the arm portions 33A and 33B on the opposite sides to the surfaces facing each other. The gripping portions 36A and 36B engage with the first holding portions 27A and 27B or the second holding portions 28A and 28B when the long article vibration suppression device 8 is in the standby state.
The connecting member 34 connects the arm portions 33A and 33B between the guide rollers 35A and 35B and the grip portions 36A and 36B. The coupling member 34 is formed in a prismatic shape and extends substantially parallel to the axial direction of the rotary shaft 22. Both ends of the connecting member 34 are fixed to the surfaces of the arm portions 33A and 33B that face each other.
The free end sides of the arm portions 33A and 33B and the connecting member 34 form a substantially U-shaped (コ -shaped) contact portion 37. The contact portion 37 contacts the main rope 6 when the main rope 6 vibrates. The rotating rollers 38A and 38B and the rotating roller 39 are provided on the inner side (inner wall surface) of the contact portion 37 to avoid damage to the main rope 6.
The rotating rollers 38A and 38B face the free end sides of the arms 33A and 33B. The rotation axes of these rotation rollers 38A and 38B are substantially parallel to the longitudinal direction of the arm portions 33A and 33B. The rotating roller 39 is substantially parallel to the longitudinal direction of the connecting member 34.
The member provided on the inner side (inner wall surface) of the contact portion 37 may be any member as long as it can prevent the damage of the main rope 6, and a cushion material such as urethane, for example, may be applied. However, it is also conceivable that the main rope 6 is lifted and lowered while being in contact with the contact portion 37. Therefore, the roller rotating in accordance with the raising and lowering of the main wire 6 is preferable because the roller itself and the main wire can be prevented from being worn or damaged.
[ multiple springs ]
The spring 24A is coupled to the arm portion 33A and an upper portion of the back surface portion 21A of the frame 21. The spring 24B is coupled to the arm portion 33B and the upper portion of the back surface portion 21A of the frame 21. The spring 25A is coupled to the arm portion 33A and a lower portion of the back surface portion 21A of the frame 21. The spring 25B is coupled to the arm portion 33B and a lower portion of the back surface portion 21A of the frame 21.
The plurality of springs 24A, 24B, 25A, and 25B are arranged and configured to be tension-balanced when the long product vibration suppression device 8 shown in fig. 4 is in a vibration suppression state. That is, the plurality of springs 24A, 24B, 25A, and 25B are arranged and configured to be balanced in tension in a state where the long object contact 23 is arranged at the vibration suppression position. When the long object contact 23 is disposed at the vibration suppression position, the longitudinal direction of the arm portions 33A, 33B is substantially parallel to the horizontal direction, and the arm portions 33A, 33B protrude toward the main rope 6 side. The rotary shaft 22 is located at the center of the guide grooves 31A and 31B.
[ holding part ]
The first holding portions 27A, 27B are provided above the side surface portions 21B, 21C in the frame 21. The first holding portions 27A, 27B are formed in a hook shape and are rotatably supported by the side surface portions 21B, 21C. The second holding portions 28A, 28B are provided below the side surface portions 21B, 21C in the structure frame 21. The second holding portions 28A and 28B are formed in a hook shape like the first holding portions 27A and 27B, and are rotatably supported by the side surface portions 21B and 21C.
The first holding portions 27A and 27B and the second holding portions 28A and 28B hold the gripping portions 36A and 36B of the long object contact 23 when the long object vibration suppression device 8 shown in fig. 5 is in a standby state. When an operation command is output from the control unit 4 (see fig. 1), the rotation is performed to release the gripping units 36A and 36B. That is, the first holding portions 27A and 27B and the second holding portions 28A and 28B rotate to the holding position (see fig. 5) when holding the gripping portions 36A and 36B of the long object contact 23, and rotate to the release position (see fig. 4) when releasing the gripping portions 36A and 36B.
1-3. operation of the device for suppressing vibration of a long article
Next, the operation of the long product vibration suppression device 8 in the present embodiment will be described with reference to fig. 4 and 5.
In a normal state, that is, when the long article vibration suppression device 8 is not operating, the long article vibration suppression device 8 is in a standby state as shown in fig. 5. At this time, the rotating shaft 22 is positioned at the lower end portions of the guide grooves 31A, 31B, and the long object contact 23 is disposed at the standby position and housed in the configuration frame 21 such that the free end sides of the arm portions 33A, 33B face upward. That is, the long object contact 23 is accommodated between the two side surface portions 21B and 21C of the configuration frame 21 at the standby position.
In the standby state of the long object vibration suppression device 8, the gripping portions 36A and 36B of the long object contact body 23 are held by the first holding portions 27A and 27B, and the rotation of the long object contact body 23 and the rotation shaft 22 is locked. As a result, the standby state of the long article vibration suppression device 8 is maintained.
Although not shown, the free end sides of the arm portions 33A and 33B may face downward in the standby state of the long article vibration suppression device 8. At this time, the rotating shaft 22 is positioned at the upper end portions of the guide grooves 31A, 31B, and the long object contact 23 is housed in the structure frame 21 so that the free end sides of the arm portions 33A, 33B face downward. That is, the long object contact 23 may be disposed at a standby position where the free end sides of the arm portions 33A and 33B face downward.
In this case, the gripping portions 36A and 36B of the long object contact 23 are held by the second holding portions 28A and 28B, and the rotation of the long object contact 23 and the rotation shaft 22 is locked. As a result, the standby state of the long article vibration suppression device 8 is maintained.
For example, when the building shakes and the main rope 6 vibrates to a threshold value, the control unit 4 (see fig. 1) outputs an operation command. Thereby, the first holding portions 27A, 27B are rotated to the release positions, and the grip portions 36A, 36B are released. As a result, the rotating shaft 22 is raised along the guide grooves 31A and 31B by the tension of the springs 25A and 25B, and the rotating shaft 22 and the long object contact 23 are rotated. At this time, since the horizontal position of the rotating shaft 22 is gradually displaced toward the back surface portion 21A, the rotating shaft 22 and the long object contact 23 rotate so that the free end sides of the arm portions 33A and 33B are displaced toward the main rope 6.
When the rotation shaft 22 is positioned at the center of the guide grooves 31A and 31B and the longitudinal directions of the arm portions 33A and 33B are substantially parallel to the horizontal direction, the tensions of the plurality of springs 24A, 24B, 25A, and 25B are balanced. That is, the tensions of the plurality of springs 24A, 24B, 25A, and 25B are balanced in a state where the long object contact 23 is disposed at the vibration suppression position. Thereby, the rotation of the rotating shaft 22 and the long product contact 23 is stopped, and the movement of the rotating shaft 22 along the guide grooves 31A and 31B is stopped, and the vibration suppression state of the long product vibration suppression device 8 is maintained.
When the main rope 6 vibrates in the vibration suppression state of the long article vibration suppression device 8, the main rope contacts the rotating rollers 38A and 38B and the rotating roller 39 of the contact portion 37 of the long article contact body 23 protruding toward the center side of the hoistway 100. As a result, the vibration of the main rope 6 is suppressed. At this time, since the rotating rollers 38A and 38B and the rotating roller 39 are rotatable, the main rope 6 is not damaged even if the main rope 6 comes into contact with each other.
The return to the standby state (non-operating state) of the long article vibration suppression device 8 is performed by the lifting operation of the car 2. For example, when the car 2 is located below the long article vibration suppression device 8, the guide roller push-up portion 10 (see fig. 1) engages with the guide rollers 35A and 35B to push up the long article contact body 23 when the car 2 is raised. Thereby, the rotating shaft 22 and the long object contact 23 rotate, and the rotating shaft 22 descends along the guide grooves 31A and 31B by the tensile force of the springs 25A and 25B.
On the other hand, the movement of the gripping portions 36A and 36B to the positions where they can be held by the first holding portions 27A and 27B is detected based on the position of the car 2. When detecting that the gripping portions 36A, 36B have moved to the positions where they can be held by the first holding portions 27A, 27B, the control portion 4 transmits an operation command to the first holding portions 27A, 27B.
The first holding portions 27A and 27B that have received the operation command rotate to the holding positions and hold the grip portions 36A and 36B. Thereby, the long object contact 23 is held at the standby position. As a result, the long article vibration suppression device 8 returns to the standby state and maintains the standby state.
When the car 2 is located above the long product vibration suppression device 8 in the vibration suppression state of the long product vibration suppression device 8, the guide roller pressing portion 11 (see fig. 1) engages with the guide rollers 35A and 35B and presses the long product contact body 23 by the lowering of the car 2. Thereby, the rotating shaft 22 and the long object contact 23 rotate, and the rotating shaft 22 is raised along the guide grooves 31A and 31B by the tensile force of the springs 24A and 24B.
When it is detected that the gripping units 36A and 36B have moved to the positions where they can be held by the second holding units 28A and 28B, the control unit 4 sends an operation command to the second holding units 28A and 28B. The second holding portions 28A and 28B that have received the operation command rotate to the holding positions and hold the gripping portions 36A and 36B. Thereby, the long object contact 23 is held at the standby position. As a result, the long article vibration suppression device 8 returns to the standby state and maintains the standby state.
When the car 2 is positioned at either the upper side or the lower side with respect to the position of the long article vibration suppression device 8, the car 2 engages the guide roller push-up portion 10 or the guide roller push-down portion 11 with the guide rollers 35A and 35B by the position of the long article vibration suppression device 8. When the guide rod pushing-up portion 10 or the guide rod pushing-down portion 11 passes through at least the long article vibration suppression device 8, the control portion 4 sends a low-speed operation command to the hoist 5. This allows the car 2 to be operated at a low speed, reduces the collision load at the time of engagement, and suppresses vibration and noise. Further, the standby state restoration operation of the long product vibration suppression device 8 and the holding operation of the first holding portions 27A and 27B or the second holding portions 28A and 28B are performed more reliably and smoothly by the low-speed operation of the car 2. The low-speed operation is an operation of raising and lowering the car 2 at a speed slower than a normal operation of raising and lowering the car 2 in a normal state.
In the first embodiment described above, the control unit 4 that issues an operation command when the main rope 6 vibrates to a threshold value, and the first holding units 27A and 27B and the second holding units 28A and 28B that receive the operation command and operate are provided. Further, a plurality of springs 24A, 24B, 25A, 25B are provided, and when the first holding portions 27A, 27B or the second holding portions 28A, 28B release the gripping portions 36A, 36B, the plurality of springs 24A, 24B, 25A, 25B move the rotating shaft 22 and the long object contact 23.
However, as the long article vibration suppressing device of the present invention, another spring configured to function similarly to the rotating shaft 22 and the long article contact body 23 may be used. The number of springs is not limited to four, and can be set as appropriate in consideration of the spring constant, the position where the springs are attached, and the like. The connection structure between the arm portions 33A and 33B and the rotation shaft 22 and the connection structure between the arm portions 33A and 33B and the connection member 34 can be appropriately changed.
When a building shakes due to a long-period earthquake or the like, the main cable may vibrate in resonance with the shaking of the building. In this case, there is a technique that is conventionally used to prevent the main rope from vibrating to a large extent by performing resonance floor avoidance operation or the like. However, in the conventional technique, when the vibration of the main rope becomes a certain value or more, the elevator apparatus needs to be temporarily stopped or the operation needs to be stopped.
In contrast, in the present invention, when it is determined that a long-period earthquake or the like has occurred and the building sways so that the vibration of the main rope 6 reaches the threshold value, the long-article vibration suppression device 8 is operated. The long object vibration suppression device 8 is configured to suppress vibration of the main rope 6 by spreading the long object contact body 23 in the hoistway 100, and therefore, can prevent the main rope 6 from vibrating more than a certain amount significantly.
In the present invention, the long article vibration suppression device 8 is returned to the standby state by providing the guide roller push-up portion 10 and the guide roller push-down portion 11 in the car 2 and pushing up or down the long article contact body 23. As a result, the long article vibration suppression device 8 can be easily restored to the standby state by the up-and-down operation of the car 2, and there is no need to temporarily stop or suspend the operation of the elevator apparatus 1 as in the conventional case.
Further, since the thickness dimension of the long article vibration suppression device 8 in the standby state is made smaller than the projecting dimension of the rocker 14, even if the long article vibration suppression device 8 is installed between floors of the door-side inner wall surface in the hoistway 100, the long article vibration suppression device 8 does not interfere with the lifting and lowering of the car 2.
With this configuration, since a large-sized driving device such as a motor is not used, the long article vibration suppression device 8 can be installed in a narrow space. Even if the long article such as the main rope 6 vibrates, the vibration of the long article can be suppressed by the long article vibration suppression device 8 without stopping the car 2.
2. Second embodiment
Structure of long article vibration suppression device
Next, the structure of the long product vibration suppression device 48 according to the second embodiment will be described. Fig. 6 is a perspective view showing a vibration suppression state of the long article vibration suppression device 48.
The long product vibration suppression device 48 of the second embodiment has the same configuration as the long product vibration suppression device 8 of the first embodiment, and the configuration of the long product vibration suppression device 48 is different from that of the long product vibration suppression device 8 only in the long product contact 53. Therefore, only the long product contact 53 will be described here, and the same components as those of the long product vibration suppression device 8 will be denoted by the same reference numerals, and detailed description thereof will be omitted.
[ contact body for long article ]
The long object contact 53 includes arm portions 63A and 63B connected to both ends of the rotating shaft 22, and a connecting member 64 connecting the arm portions 63A and 63B. The arm portions 63A, 63B are formed in a cylindrical shape extending substantially perpendicular to the axial direction of the rotary shaft 22, and face each other with an appropriate distance therebetween. One axial end portions of the arm portions 63A and 63B are connected to the rotating shaft 22, and the other axial end portions of the arm portions 33A and 33B are free ends.
The connecting member 64 connects the arm portions 63A, 63B between the guide rollers 35A, 35B and the grip portions 36A, 36B. The coupling member 64 is formed in a cylindrical shape and extends substantially parallel to the axial direction of the rotary shaft 22. The arm portions 63A and 63B are connected to both ends of the coupling member 64 in the axial direction.
The free end sides of the arm portions 63A, 63B and the connecting member 64 form a substantially U-shaped (コ -shaped) contact portion 67. The contact portion 67 contacts the main rope 6 when the main rope 6 vibrates. Since the arm portions 63A, 63B and the connecting member 64 are formed in a cylindrical shape, damage to the main cable 6 due to contact can be prevented while suppressing vibration of the main cable 6.
In the long object contact 53 of the second embodiment, the rotating rollers 38A and 38B and the rotating roller 39 provided in the long object contact 23 of the first embodiment can be omitted. As a result, the number of components can be reduced, and the manufacturing cost can be reduced.
3. Summary of the invention
As described above, in the first and second embodiments, the guide roller push-up portion 10 and the guide roller push-down portion 11 are provided in the car 2, and the power for returning the long article vibration suppression device 8(48) to the standby state is obtained in accordance with the up-down movement of the car 2. Thus, the long article contact 23(53) is rotated without providing a driving device such as a motor, and the long article vibration suppression device 8(48) can be put into a standby state.
Therefore, the long article vibration suppression device 8(48) can be downsized, and the long article vibration suppression device 8(48) can be installed in a narrow space. Further, even if the long article such as the main rope 6 vibrates, the vibration of the long article can be suppressed without stopping the car 2.
In the first and second embodiments described above, the long object contact 23(53) is accommodated between the two side surface portions 21B and 21C of the structure frame 21 in the standby state of the long object vibration suppression device 8 (48). This makes it possible to reduce the thickness of the long article vibration suppression device 8(48) in the standby state.
In the first and second embodiments described above, the rotary shaft 22 and the long object contact 23(53) are provided, and the long object contact 23(53) is rotatable about the rotary shaft 22 and is movable to a vibration suppression position protruding toward the long object side to suppress vibration of the long object and a standby position disposed on the inner wall surface side of the ascending/descending path 100. Then, the long object contact 23(53) is in a folded standby state at the standby position. Therefore, the long object vibration suppression device 8(48) can be installed in a narrow space between floors.
Further, since the long article vibration suppression device 8(48) is unitized using the structure frame 21, the long article vibration suppression device 8(48) can be installed only by attaching the structure frame 21 to the inner wall of the hoistway 100. As a result, it is not necessary to adjust the positions of the respective components in the long product vibration suppression device 8(48) during the installation work, and the workability of the installation work can be improved.
In the first and second embodiments described above, the long article vibration suppression device 8(48) is provided on the side surface of the entrance of the portion of the inner wall surface of the ascending/descending duct 100 located between the floors. The number of devices installed at the entrance and exit side between floors in the hoistway 100 is small, and the installed devices rarely become obstacles when the long article vibration suppressing device 8 is in the vibration suppressing state. Therefore, by providing the long article vibration suppressing device 8(48) on the entrance side surface of the portion located between floors, it is possible to reduce the layout change of the existing device (existing device) in the hoistway 100.
In the first and second embodiments described above, the thickness dimension of the frame 21, that is, the length (dimension) of the side portions 21B and 21C extending in the horizontal direction is equal to or less than the protruding dimension of the rocker 14 protruding toward the inside of the hoistway 100. Thus, the long article vibration suppression device 8(48) can be installed without enlarging the hoistway 100. Further, the long article vibration suppression device 8(48) can be additionally installed in the existing elevator apparatus.
In the first and second embodiments described above, the long article vibration suppression device 8(48) for suppressing the vibration of the main rope 6 is additionally provided. However, the long article vibration suppression device according to the present invention is not limited to the main rope, and may be provided for suppressing vibration of a compensation rope 7, a governor rope (not shown), a tail rope (not shown), and the like, which are long articles other than the main rope 6, for example.
When the present invention is applied to a main rope or a compensating rope, the main rope or the compensating rope may be divided into main components such as a car-side main rope, a car-side compensating rope, a counterweight-side main rope, and a car-side compensating rope, and the long article vibration suppressing device of the present invention may be provided in each of the divided parts. The long article vibration suppression device according to the present invention is not necessarily provided on the inner wall of the hoistway on the entrance side, and may be provided at an appropriate position according to the long article to be subjected to vibration.
Since the tension, the type of wire, and the vibration mode differ for each long article, the natural cycle at the time of stopping the car differs for each long article and each installation location. In contrast, the long article vibration suppression device according to the present invention is preferably provided at or near a position where the vibration of the long article becomes maximum when the natural period of the building and the natural period of each long article coincide with each other (for example, in the case of the main rope 6, the vibration is maximum at a position substantially in the middle of a portion where the vibration occurs).
By providing the long-article vibration suppression device in this manner, the vibration can be suppressed by the long-article vibration suppression device before each long article vibrates largely in resonance with the sway of the building. Therefore, the long object can be prevented from contacting or being caught by the device provided in the lifting passage. Further, when the building is swayed by a long-period earthquake or a strong wind, the elevator apparatus does not need to be stopped in consideration of damage caused by vibration of the long object, and the inspection work after the swaying of the building is finished is also not needed.
The present invention has been described above based on the embodiments, but the present invention is not limited to the configurations described in the above embodiments, and the configurations can be appropriately modified without departing from the spirit thereof. The above-described embodiments are for describing the present invention in detail for easy understanding, and are not limited to having all the configurations described. Further, a part of the structure of one embodiment may be replaced with the structure of another embodiment, and the structure of another embodiment may be added to the structure of one embodiment. Further, addition, deletion, and replacement of another configuration can be performed with respect to a part of the configurations of the respective embodiments.
For example, in the first and second embodiments described above, the gripping portions 36A and 36B are provided in the long object contact 23(53), and the gripping portions 36A and 36B are held by the first holding portions 27A and 27B or the second holding portions 28A and 28B. However, as the holding portion of the present invention, the arm portions 33A and 33B (63A and 63B) of the long object contact 23(53) may be directly held, and the guide rollers 35A and 35B may be held. The holding portion of the present invention may hold the rotary shaft 22.
In the first and second embodiments described above, the guide grooves 31A and 31B are formed in a substantially L shape (く shape). However, the guide groove of the present invention is not limited to a substantially L shape (く shape), and may be, for example, an arc shape as long as it is a shape that guides the movement of the rotary shaft to displace the position of the rotary shaft in the horizontal direction.
In the guide groove of the present invention, it is preferable that the rotation shaft is guided so that the position of the rotation shaft in the horizontal direction is distant from the long article (main rope) when the long article vibration suppression device is brought from the standby state to the vibration suppression state. Thus, when the long article vibration suppression device is brought from the standby state to the vibration suppression state, the contact portion side of the long article contact body is displaced in a direction approaching the long article (main rope), and therefore the rotating shaft and the long article contact body can be smoothly rotated in a direction in which the contact portion faces the long article.
Claims (8)
1. An elevator apparatus configured to drive a car and a counterweight to ascend and descend in mutually different directions by using an elongated object in an ascending/descending passage,
it is characterized in that the preparation method is characterized in that,
the elevator device is provided with:
a long-article vibration suppression device provided on an inner wall surface of the lift passage; and
a restoration engaging portion provided to the car or the counterweight,
the long object vibration suppression device comprises:
a structure frame having two side surface portions opposed to each other and guide grooves formed in the two side surface portions;
a rotary shaft movably guided by the guide groove;
a long object contact body that rotates about the rotation axis and is movable to a vibration suppression position that protrudes toward the long object side to suppress vibration of the long object and a standby position that is disposed on an inner wall surface side of the elevation path;
a plurality of springs that are attached to the long object contact body and the structure frame and are balanced in tension in a state where the long object contact body is located at a vibration suppression position;
a control unit that outputs an operation command when the long article vibrates to a threshold value; and
a holding unit that holds the long object contact body arranged at the standby position or the rotating shaft when the long object contact body is arranged at the standby position, and releases the holding of the long object contact body or the rotating shaft by receiving the operation command,
the guide groove guides movement of the rotary shaft so as to displace a position of the rotary shaft in a horizontal direction,
the return engagement portion engages with the long object contact by the lift of the car or the counterweight, and moves the long object contact to the standby position.
2. Elevator arrangement according to claim 1,
the long strip contact is accommodated between the two side surface parts of the structure frame at the standby position.
3. Elevator arrangement according to claim 1 or 2,
the control unit operates the car at a low speed when the car or the counterweight is moved up and down to move the long object contact to the standby position.
4. Elevator arrangement according to claim 1 or 2,
the long object vibration suppression device is disposed at an inter-floor position in an inner wall surface of the elevation path.
5. Elevator arrangement according to claim 1 or 2,
the long object vibration suppression device is supported by being attached to the structure frame by a component provided on an inner wall surface of the elevating path.
6. Elevator arrangement according to claim 1 or 2,
when the long article contact body is disposed at the standby position, the long article vibration suppressing device is set to a projecting dimension of a threshold formed on an entrance/exit surface of the ascending/descending passage or less.
7. Elevator arrangement according to claim 1 or 2,
the long article vibration suppression device is provided at or near a height position at which the vibration of the long article to be detected is assumed to be maximum.
8. Elevator arrangement according to claim 1 or 2,
when the long object contact is moved from the standby position to the vibration suppression position, the guide groove guides the rotating shaft so that the rotating shaft is spaced apart from the long object.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-006958 | 2018-01-19 | ||
| JP2018006958A JP6785254B2 (en) | 2018-01-19 | 2018-01-19 | Elevator device |
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| Publication Number | Publication Date |
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| CN110054057A CN110054057A (en) | 2019-07-26 |
| CN110054057B true CN110054057B (en) | 2020-11-03 |
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| JP (1) | JP6785254B2 (en) |
| CN (1) | CN110054057B (en) |
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| KR102145223B1 (en) * | 2019-08-16 | 2020-08-19 | 주식회사 에스피티 | Piezoelectric ultrasonic generating device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100260A (en) * | 2006-07-05 | 2008-01-09 | 株式会社日立制作所 | Speed regulator rope shake preventing device for elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004059211A (en) * | 2002-07-26 | 2004-02-26 | Toshiba Elevator Co Ltd | Shaftless type elevator system |
| JP2004262578A (en) * | 2003-02-28 | 2004-09-24 | Toshiba Elevator Co Ltd | Damping control device for elevator |
| US7503433B2 (en) * | 2003-04-07 | 2009-03-17 | Chiu Nan Wang | Elevator |
| JP5240687B2 (en) * | 2007-12-11 | 2013-07-17 | 東芝エレベータ株式会社 | Elevator rope steady rest |
| JP5997076B2 (en) * | 2013-03-01 | 2016-09-21 | 株式会社日立製作所 | Elevator and tail cord damping device provided for the elevator |
| JP2015030580A (en) * | 2013-08-01 | 2015-02-16 | 株式会社日立製作所 | Elevator |
| JP6276607B2 (en) * | 2014-02-21 | 2018-02-07 | 株式会社日立製作所 | Elevator equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100260A (en) * | 2006-07-05 | 2008-01-09 | 株式会社日立制作所 | Speed regulator rope shake preventing device for elevator |
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| Publication number | Publication date |
|---|---|
| JP2019123610A (en) | 2019-07-25 |
| CN110054057A (en) | 2019-07-26 |
| JP6785254B2 (en) | 2020-11-18 |
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