WO2015125288A1 - Dispositif d'ascenseur - Google Patents

Dispositif d'ascenseur Download PDF

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Publication number
WO2015125288A1
WO2015125288A1 PCT/JP2014/054255 JP2014054255W WO2015125288A1 WO 2015125288 A1 WO2015125288 A1 WO 2015125288A1 JP 2014054255 W JP2014054255 W JP 2014054255W WO 2015125288 A1 WO2015125288 A1 WO 2015125288A1
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WO
WIPO (PCT)
Prior art keywords
hoistway
car
hoisting machine
rope
elevator apparatus
Prior art date
Application number
PCT/JP2014/054255
Other languages
English (en)
Japanese (ja)
Inventor
勇貴 野澤
真輔 井上
野口　直昭
Original Assignee
株式会社日立製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to PCT/JP2014/054255 priority Critical patent/WO2015125288A1/fr
Publication of WO2015125288A1 publication Critical patent/WO2015125288A1/fr

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Classifications

    • 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
    • B66B11/0065—Roping
    • B66B11/007—Roping for counterweightless elevators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures

Definitions

  • the present invention relates to an improvement in the layout of an elevator device, particularly an elevator device.
  • the elevator has a hoisting machine with a sheave attached to the output shaft. A rope is wound around the sheave and a car is suspended from the rope. The car is driven with a speed controlled by a hoist.
  • a typical elevator has a counterweight that is equivalent to the mass of a cage suspended by a rope, or the mass of the cage plus half the maximum loading weight, and the side of the rope wrapped around the sheave. The effective load of the motor is reduced by reducing the mass difference on the counterweight side.
  • an elevator apparatus that improves the floor area on the hoistway area where the car can be ridden by reducing the counterweight (for example, see Patent Document 1).
  • the elevator device without the counterweight is hereinafter referred to as a counterweightless elevator.
  • This counterweight-less elevator can improve the boardable floor area in the hoistway area, and can improve the transport capacity per unit area.
  • the cost can be reduced by reducing the number of parts of the balance weight and the rail used when the balance weight is moved up and down.
  • An object of the present invention is to provide an elevator apparatus capable of expanding the application area of a counterweight-less elevator while maintaining the space-saving property of the counterweight-less elevator. .
  • an elevator apparatus includes a car that moves up and down in a hoistway, a rope that holds the car, and a hoist that drives the rope to raise and lower the car.
  • the elevator apparatus provided with a machine, a pair of the hoisting machines are used, the same rope is wound around the pair of hoisting machines, and one hoisting machine is placed above the hoistway and the other hoisting machine
  • the hoisting machine is provided below the hoistway, and is disposed in the hoistway so that orthogonal projections of the pair of hoisting machines overlap each other when viewed from the vertical direction of the hoistway.
  • an elevator apparatus capable of expanding the application area of a counterweight-less elevator while maintaining the space-saving property of the counterweight-less elevator.
  • the perspective view of the elevator apparatus which shows the whole outline
  • the perspective view which shows the example of arrangement
  • the top view which shows the structure of the hoistway horizontal cross section in a 1st Example.
  • the perspective view of the elevator apparatus which shows the whole outline
  • the whole perspective view of the elevator apparatus which shows the whole outline
  • the perspective view of the elevator apparatus which shows the whole outline
  • the top view which shows the structure of the hoistway horizontal cross section in a 4th Example The top view which shows the structure of the hoistway horizontal cross section of other embodiment in a 4th Example.
  • the counterweight-less elevator does not have a counterweight that reduces the effective load on the motor. For this reason, if an attempt is made to lift a car with the same load, the size of the motor increases as compared with a normal slidable elevator. When the motor is increased in size due to an increase in the load on the motor, the transport capacity per unit area is reduced. Therefore, in a counterweight-less elevator, the applicable range of speed and loading is limited. Therefore, in the elevator apparatus of the present invention, in order to reduce the torque applied to one motor, a plurality of hoisting machines are provided, and the hoisting machine is reduced in size by distributing torque to each of the hoisting machines. Aims to expand the speed and load application range of the elevator.
  • FIG. 1 is a perspective view of an elevator apparatus showing an overall outline of the form of the first embodiment of the present invention.
  • a car 3 is connected to a pair of hoisting machines 2 arranged above and below via a rope 4.
  • the rope 4 is driven by the rotation of the sheave 7 driven by the hoisting machine 2.
  • the rope 4 drives the car 3 via a car pulley 6 disposed on the upper and lower surfaces of the car.
  • it is also folded back on the lower surface of the car 3. This is because the length of the rope 4 is always constant regardless of the position of the car 3.
  • both sides of the upper surface of the car 3 are suspended by the rope 4 so that the car 3 does not tilt.
  • the elevator apparatus 100 includes the car 3 that moves up and down in the hoistway 30 (shown in FIG. 3), the rope 4 that holds the car 3, and the rope 4 that drives the car 3. And a hoisting machine 2 for moving up and down.
  • a pair of hoisting machines 2 is used, and the same rope 4 is wound around the pair of hoisting machines 2, one hoisting machine 2 is above the hoistway 30, and the other hoisting machine 2 is the hoistway. 30 below.
  • the rope 4 in the present embodiment suspends the car 3 by winding the rope end 8 on one end side inside the hoistway 30 with the end member and being wound around the pulley 6 provided on the upper part of the car 3. Hold it and pull it up. After that, it is wound around one hoisting machine 2 disposed above the hoistway 30 and drawn downward, and is wound around the other hoisting machine 2 disposed below the hoistway 30 and moved upward. It is drawn around and wound around a pulley 6 provided at the lower portion of the car 3, and then the end 8 of the rope on the other end side is fixed in the hoistway 30 by an end member.
  • a tension mechanism is used to apply tension to the rope 4 on the side opposite to the car 3 with respect to the sheave 7 of one hoisting machine 2 arranged at the top. 5 is provided.
  • a frictional force is applied between the sheave 7 and the rope 4 by applying the tension of the tension mechanism 5. By this frictional force, the rope 4 is driven along the rotation of the sheave 7 without slipping, and the car 3 can be driven up and down.
  • This frictional force is determined by the tension ratio of the rope applied to the sheave 7, and if it exceeds the traction determined by the groove shape of the sheave or the winding angle wound around the sheave of the rope, slip occurs between the rope and the sheave, and the car 3 Can not be driven.
  • the tension applied by the tension mechanism 5 is applied to the car 3 through the lower pulley 6 as shown in FIG. 1, but similarly to the pulley 6 above the car 3 as the tension of the rope 4. Because of this, the torque required to lift the car 3 is not affected.
  • the torque required for the hoisting machine 2 is a difference in tension between the ropes 4 extending from both ends of the sheave wound around the hoisting machine 2. This tension difference becomes the own weight and the loaded weight of the car 3 in this embodiment. Therefore, in order to reduce the torque applied to the hoisting machine, it is necessary to increase the number of ropings to reduce the tension due to the weight of the car 3 and the load weight, or to reduce the weight of the car.
  • the torque applied to can be reduced by using a plurality of hoisting machines 2.
  • the torque required to lift the car 3 is distributed to two motors, so that the motor capacity is reduced from the reduction of the torque required per one, and the hoisting machine 2 is reduced in size.
  • the hoistway 30 is disposed so that the orthogonal projections of the pair of hoisting machines 2 overlap each other when viewed from the vertical direction of the hoistway 30.
  • FIG. 2 is a perspective view showing an arrangement example in which a plurality of hoisting machines are arranged when the present invention is not applied.
  • a turning pulley 41 and a pulley 42 are required to give the sheave an angle at which the rope is wound in order to suppress slipping, but as shown in FIG.
  • the turning pulley 41 and the pulley 42 can be reduced without changing the winding angle applied to the sheave 7.
  • the space required for the pulleys can be reduced, and the availability of the hoistway area can be increased.
  • FIG. 3 is a top view showing the configuration of the horizontal cross section of the hoistway in the present embodiment.
  • the floor area of the car 3 in the hoistway area is increased by reducing the counterweight.
  • the orthogonal projection of the pair of hoisting machines 2 is performed in the hoistway 30 with the car 3 and the hoistway. In the region between 30 hoistway walls, they are arranged so as to overlap each other. By arranging in the gap space between the car 3 and the hoistway 30 in the hoistway 30, the car top gap and the car lower gap can be reduced.
  • the 2: 1 roping having the rope end 8 at the final end of the building via the car pulley 6 from the hoisting machine as shown in FIG. 1 has been described as an example. There is no limit on the number of times. When the number of ropings is increased, the torque required for the hoisting machine is reduced and the number of revolutions is increased. Generally, when the motor has a low torque, magnetic parts such as magnets can be reduced, and the hoisting machine can be downsized.
  • FIG. 4 is a perspective view of the elevator apparatus showing the overall outline of the second embodiment of the present invention.
  • the weight of the lower hoisting machine 2 in the first embodiment is used to reduce the size of the lower tension mechanism 5.
  • the torque applied to the hoisting machine increases. Therefore, after being wound around the pulley 6 provided on the upper part of the car 3 that is a part for suspending the car 3, and then wound on one hoisting machine 2 disposed on the upper part of the hoistway 30.
  • a tension mechanism 5 By providing a tension mechanism 5 at the end of the rope 4 opposite to the car 3 with respect to the sheave 7 of the car, a tension is applied to the rope on the side opposite to the car suspension side, thereby causing a frictional force between the sheave and the rope. (Traction) can be increased.
  • the tension mechanism 5 will be described with reference to a spring in FIG. 4. However, if tension can be applied, a passive mechanism such as a spring and a damper, an active mechanism such as a direct acting actuator such as a hydraulic pressure, A mechanism combining them may be used.
  • the tension mechanism 5 needs to increase the tension in order to balance the car loading.
  • the tension mechanism 5 increases in size to increase the tension.
  • the enlarged tension mechanism 5 increases the cage lower gap. Therefore, the tension mechanism 5 is reduced in size by applying tension to the rope end opposite to the car 3 suspension side using the weight of the other hoisting machine 2 disposed at the lower part of the hoistway. It is possible.
  • the hoisting machine guide rails 22 are erected on both sides of the hoisting machine 2, and the hoisting machine guide shoes 23 are provided at both upper and lower ends of the hoisting machine 2, and the hoisting machine guide shoes 23 are hoisted.
  • the machine guide rail 22 is configured to slide. By comprising in this way, the front-back and left-right direction of the winding machine 2 is restrained, and only the up-down direction can be moved. That is, the other hoisting machine 2 is provided so as not to move in the horizontal plane direction of the hoistway 30 but to be movable in the vertical direction. As described above, since the movement can be performed only in the vertical direction, the own weight of the hoisting machine 2 can be applied as tension to the rope portion between the hoisting machines.
  • the beam for fixing the other hoisting machine 2 to a building becomes unnecessary by suspending the other hoisting machine 2 on the rope. Since the tension applied to the upper hoisting machine does not change as a whole, the beam for fixing the upper hoisting machine to the building does not increase in size even if the weight of the lower hoisting machine is used.
  • the rope between the hoisting machines bends due to a speed difference caused by wear of each sheave diameter or a speed difference caused by a hoisting machine control error. Will occur.
  • the lower hoisting machine is freely hung, if the rope is bent, the bending of the rope can be canceled out by the own weight of the hoisting machine itself. Thereby, even if it uses the some winding machine 2, the stable drive is attained.
  • FIG. 5 is an overall perspective view of the elevator apparatus showing an overall outline in the third embodiment of the present invention
  • FIG. 6 is a top view showing the structure of the hoistway horizontal section in the third embodiment.
  • the arrangement of the hoisting machine 2 in the first embodiment is changed to improve the floor area of the car 3 in the horizontal cross-sectional area of the hoistway.
  • the machine is rotated 90 degrees from the state of the first embodiment, and the machine is not installed only between the car 3 and the hoistway wall. So that the orthographic projection of the hoisting machine 2 overlaps the area between the car 3 and the hoistway wall of the hoistway 30 and the orthographic projection of the car 3, and the upper hoisting machine and the lower hoisting machine The projections are arranged so as to overlap each other. As a result, the floor area of the car can be made between the car 3 and the hoistway wall except for a space through which only the guide rail and the rope pass, and the transport capacity per unit area is improved.
  • the gap between the top and the bottom of the car increases, it is possible to suppress the increase of the gap to some extent by using a motor of a trunk length type.
  • the motor shaft 9 of the pair of hoisting machines 2 is installed so as to be perpendicular to the door surface 3 a of the car 3. Therefore, it is possible to use a twisting driving element such as a belt or a chain as a rope.
  • FIG. 7 is a perspective view of an elevator apparatus showing an overall outline in the fourth embodiment of the present invention
  • FIG. 8 is a top view showing the structure of the hoistway horizontal section in the fourth embodiment.
  • the application range of the high load and high speed of the counterweight elevator in the first embodiment is expanded, and a plurality of pairs of hoisting machines 2 (two in this embodiment) are provided in a space-saving arrangement. It is said.
  • a combination of the pair of hoisting machines 2, the rope 4, the tension mechanism 5, and the like in the first embodiment is referred to as an elevating mechanism 20 for convenience.
  • a pair of hoisting machines 2 and ropes 4 are combined as shown in FIG. 7 and a plurality of sets (two in this embodiment) are provided in the same car 3.
  • Example 1 when the raising / lowering mechanism 20 is arrange
  • a guide rail 32 that guides the raising and lowering of the car 3 is provided in the hoistway 30, and a plurality of pairs of the hoisting machine 2 and the rope 4 are arranged symmetrically with respect to the guide rail 32.
  • another set of lifting mechanism 20 is arranged at a line-symmetrical position around the guide rail 32 of FIG. 3 described in the first embodiment.
  • the number of motors increases, the torque required for one motor is reduced, and the hoisting machine 2 can be downsized.
  • the tension mechanism 5 provided in the lower part is provided with a plurality of lifting mechanisms 20 (two in this embodiment), so that the tension is reduced by the number of the lifting mechanisms 20 provided. Thereby, the tension mechanism 5 can be downsized by providing a plurality of lifting mechanisms 20 (two in this embodiment).
  • FIG. 9 is a top view showing the structure of the horizontal cross section of the hoistway of another embodiment in the fourth example.
  • a pair of hoisting machines 2 and ropes 4 provided in a plurality of sets is viewed from the vertical direction of the hoistway 30, a specific on the car 3 is specified.
  • a configuration in which the diagonal lines of the car 3 are arranged point-symmetrically with respect to the symmetrical point 33 at the central position, which is the intersection point is possible.
  • the trunk length type hoisting machine referred to in this specification refers to a machine in which the thickness of the motor portion (the length in the vertical direction on the paper surface in FIG. 9) is larger than the diameter of the sheave 7.
  • the hoisting machine shown in other drawings is called a thin hoisting machine, which means that the thickness of the motor part is smaller than the diameter of the sheave 7.
  • the hoisting machine having the form described with reference to FIG. 9 may be arranged point-symmetrically with the thin hoisting machine 2 described in the third embodiment and its arrangement configuration. In that case, both the effect described in the third embodiment and the effect described with reference to FIGS.
  • FIG. 10 is a side view showing the configuration of the lower hoisting machine portion in the present embodiment.
  • the elevator apparatus 100 is configured to increase the tension applied to the rope 4 by using the own weight of the other hoisting machine 2 disposed in the lower part of the hoistway 30.
  • the hoisting machine 2 of this embodiment includes a hoisting machine guide device 21.
  • the hoisting machine guide device 21 includes a hoisting machine guide rail 22 and a hoisting machine guide shoe, and the hoisting machine guide rails 22 are erected on both sides of the hoisting machine 2 to guide the hoisting machine guide.
  • the shoes 23 are provided at both upper and lower ends of the hoisting machine 2, and the hoisting machine guide shoes 23 are configured to slide on the hoisting machine guide rails 22.
  • a spring 24 is installed between the hoisting machine 2 and the building with respect to the hoisting machine 2 provided with such a hoisting machine guide device 21. By providing the spring 24, it is possible to further apply tension to the rope between the hoisting machines.
  • the spring 24 is used as the lower hoisting machine tension mechanism.
  • a passive spring or damper can be used.
  • a mechanism or a direct acting actuator such as a hydraulic pressure or a motor may be used.
  • This embodiment can be used for the hoisting machine guide device 21 of the above-described embodiments 2 to 4.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

Le but de la présente invention est de fournir un dispositif d'ascenseur (100) qui permet au champ d'application des ascenseurs sans contrepoids d'être élargi tandis que les caractéristiques de gain de place des ascenseurs sans contrepoids sont maintenues. Le dispositif d'ascenseur (100) comprend : une cabine (3) se déplaçant verticalement dans la cage d'ascenseur (30) ; un câble (4) pour suspendre et maintenir la cabine (3) ; et des treuils (2) pour entraîner le câble (4) et ainsi déplacer verticalement la cabine (3). Les treuils (2) sont disposés en tant que paire, et les deux treuils (2) ont le même câble (4) enroulé autour d'eux. L'un des treuils (2) est situé au niveau de la partie supérieure de la cage d'ascenseur (30), et l'autre treuil (2) est situé au niveau de la partie inférieure de la cage d'ascenseur (30). Lorsque l'on regarde à l'intérieur de la cage d'ascenseur (30) dans la direction verticale de celle-ci, la paire de treuils (2) est agencée de sorte que les projections orthogonales des treuils (2) se chevauchent mutuellement.
PCT/JP2014/054255 2014-02-24 2014-02-24 Dispositif d'ascenseur WO2015125288A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/054255 WO2015125288A1 (fr) 2014-02-24 2014-02-24 Dispositif d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/054255 WO2015125288A1 (fr) 2014-02-24 2014-02-24 Dispositif d'ascenseur

Publications (1)

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WO2015125288A1 true WO2015125288A1 (fr) 2015-08-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6313493B1 (ja) * 2017-03-07 2018-04-18 東芝エレベータ株式会社 非常用マシンルームレスエレベータ、及び非常用マシンルームレスエレベータの運転方法
JP6329289B1 (ja) * 2017-03-07 2018-05-23 東芝エレベータ株式会社 非常用マシンルームレスエレベータ、及び非常用マシンルームレスエレベータの運転方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004071926A1 (fr) * 2003-02-13 2004-08-26 Mitsubishi Denki Kabushiki Kaisha Equipement d'ascenseur
WO2006043317A1 (fr) * 2004-10-20 2006-04-27 Mitsubishi Denki Kabushiki Kaisha Appareillage d'ascenseur
WO2006070437A1 (fr) * 2004-12-27 2006-07-06 Mitsubishi Denki Kabushiki Kaisha Ascenseur

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004071926A1 (fr) * 2003-02-13 2004-08-26 Mitsubishi Denki Kabushiki Kaisha Equipement d'ascenseur
WO2006043317A1 (fr) * 2004-10-20 2006-04-27 Mitsubishi Denki Kabushiki Kaisha Appareillage d'ascenseur
WO2006070437A1 (fr) * 2004-12-27 2006-07-06 Mitsubishi Denki Kabushiki Kaisha Ascenseur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6313493B1 (ja) * 2017-03-07 2018-04-18 東芝エレベータ株式会社 非常用マシンルームレスエレベータ、及び非常用マシンルームレスエレベータの運転方法
JP6329289B1 (ja) * 2017-03-07 2018-05-23 東芝エレベータ株式会社 非常用マシンルームレスエレベータ、及び非常用マシンルームレスエレベータの運転方法

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