WO2021186492A1 - Dispositif d'ascenseur de construction et procédé d'extension de câble de régulateur pour ascenseur - Google Patents

Dispositif d'ascenseur de construction et procédé d'extension de câble de régulateur pour ascenseur Download PDF

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Publication number
WO2021186492A1
WO2021186492A1 PCT/JP2020/011369 JP2020011369W WO2021186492A1 WO 2021186492 A1 WO2021186492 A1 WO 2021186492A1 JP 2020011369 W JP2020011369 W JP 2020011369W WO 2021186492 A1 WO2021186492 A1 WO 2021186492A1
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WIPO (PCT)
Prior art keywords
machine room
room unit
main rope
machine
lifting
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PCT/JP2020/011369
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English (en)
Japanese (ja)
Inventor
悠人 樋野
章智 五十嵐
萩原　高行
Original Assignee
株式会社日立製作所
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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 JP2022508611A priority Critical patent/JP7404506B2/ja
Priority to PCT/JP2020/011369 priority patent/WO2021186492A1/fr
Publication of WO2021186492A1 publication Critical patent/WO2021186492A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators

Definitions

  • the present invention relates to an elevator device for construction work and a method of extending the main rope of an elevator.
  • the construction elevator device described in Patent Document 1 includes a machine room unit below the support beam.
  • the machine room unit is configured by arranging a hoisting machine between the lower beam and the upper beam, and is suspended from a support beam by a rope.
  • the upper beam is equipped with a lifting machine, which winds the rope to lift the machine room unit.
  • the machine room unit becomes large and the number of lifting machines increases when the elevator has a long stroke and a large load, and the machine room unit is formed by a wall or a beam on a specific floor. Since it is supported, there is a problem that a load exceeding the allowable load (allowable load) is applied to the walls and beams on this specific floor.
  • the lifting machine that lifts the machine room unit (the size and number of staff increase according to the weight of the machine room unit, and the weight of the lifting machine itself also increases) Since a rope drum or the like for extending the rope of the elevator is provided, the weight of the machine room unit increases, and it is difficult to reduce the weight of the machine room unit.
  • An object of the present invention is to provide a construction elevator device and a method for extending the main rope of an elevator, which can solve the above-mentioned problems of the prior art, reduce the number of lifting personnel, and suppress the load applied to a beam or a wall on a specific floor. There is.
  • the present invention provides a hoisting machine provided in a hoistway to move a car and a counterweight suspended by a main rope in the elevating direction, and a main rope that stores an extension of the main rope.
  • the machine room unit includes a first machine room unit including the hoisting machine and the main machine room unit. It is characterized in that it is divided into a second machine room unit provided with a cable drum, and the divided first machine room unit and the second machine room unit are placed on beams or walls on different building floors.
  • the present invention includes a hoisting machine provided in a hoistway for moving a car and a counterweight suspended by a main rope in the elevating direction, a main rope drum for storing an extension of the main rope, and the above.
  • the machine room unit includes a first machine room unit including the hoisting machine and the main rope drum.
  • the first machine room unit and the second machine room unit are divided into a second machine room unit provided with the above, and the divided machine room unit and the second machine room unit are placed on a beam or a wall on a different building floor, and when the machine room unit is lifted, the said The second machine chamber unit is suspended from a support member provided in the hoistway, and the first machine chamber unit is suspended from the second machine chamber unit to be the first machine chamber unit or the first machine chamber unit.
  • the two machine chamber units are provided with a lifting machine for the first machine chamber unit for lifting the first machine chamber unit, and the support member or the second machine chamber unit lifts the second machine chamber unit.
  • a lifting machine for a second machine room unit to be overlapped is provided, the first machine room unit is provided with a first machine room unit main rope gripping device for gripping the main rope, and the second machine room unit is equipped with a main rope gripping device.
  • a second machine room unit main rope gripping device for gripping the main rope is provided, and when the second machine room unit is pulled up by the lifting machine for the second machine room unit, the second machine room unit main rope gripping device is provided.
  • the main rope is pulled out from the main rope drum, the main rope is gripped by the first machine room unit main rope gripping device, and the first machine room unit is gripped by the lifting machine for the first machine room unit.
  • the first machine room unit main rope gripping device is opened, and the second machine room unit main rope gripping device grips the main rope.
  • an elevator device for construction work and a method of extending the main rope of an elevator, which can reduce the number of lifting machines and suppress the load applied to a beam or a wall on a specific floor.
  • FIG. 1 is a schematic configuration diagram of a construction elevator device according to the first embodiment.
  • the construction elevator device 1 As shown in FIG. 1, the construction elevator device 1 according to the first embodiment is provided in a hoistway 100 formed in a building structure.
  • the construction elevator device 1 includes a support member 2, a machine room unit (first machine room unit 3, second machine room unit 4), and a machine room unit lifting machine (first machine room unit lifting machine 5a, 5b, lifting machines for the second machine room unit 6a, 6b, 6c) are provided.
  • Three or more lifting machines 6a, 6b, 6c for the second machine room unit are provided in the second machine room unit 4, and the second machine room unit 4 is pulled up.
  • the support member 2 is located at the upper part in the hoistway 100 and is mounted on the beam 110a or the wall of the building.
  • the second machine room unit 4 is suspended from the support member 2, is lifted by the lifting machines 6a, 6b, 6c for the second machine room unit installed in the second machine room unit 4, and moves in the elevating direction. do.
  • the first machine room unit 3 is suspended from the second machine room unit 4, and is lifted by the lifting machines 5a and 5b for the first machine room unit installed in the first machine room unit 3 in the ascending / descending direction.
  • the lifting machines 5a and 5b for the first machine room unit are N: 1 (N is 2 or more) roping via a plurality of pulleys 7 provided in the first machine room unit 3 and the second machine room unit 4, respectively. 1 Lift the machine room unit 3.
  • the first machine room unit 3 has a movable support portion 8 that expands and contracts toward the wall surface of the hoistway 100 (in the left-right direction in FIG. 1) and engages with the beam 110d of the building or the wall when extended. Further, the first machine room unit 3 is a car arranged on the hoisting machine 9, the main rope 10 wound around the sheave of the hoisting machine 9, and the main rope 10 located on one side of the hoisting machine 9. It has 11 and a balance weight 12 arranged on the main rope 10 located on the other side of the hoisting machine 9. The hoisting machine 9 is provided in the hoistway 100, and moves the car 11 and the balance weight 12 suspended by the main rope 10 in the elevating direction.
  • the second machine room unit 4 has a movable support portion 13 that expands and contracts toward the wall surface of the hoistway 100 (in the left-right direction in FIG. 1) and engages with the beam 110c of the building or the wall when extended.
  • the main rope 10 is fixed to the first machine room unit 3 by the main rope fixing portion 14 provided in the first machine room unit 3.
  • the other end side of the main rope 10 extends upward from the first machine room unit 3 and is wound around a main rope drum 15 provided in the second machine room unit 4.
  • the main rope drum 15 is provided for extending the main rope 10, and stores the extension of the main rope 10.
  • the main rope 10 is provided by the first machine room unit main rope gripping device 16 provided in the first machine room unit 3 and the second machine room unit main rope gripping device 17 provided in the second machine room unit 4, respectively. Be grasped.
  • the first machine room unit 3 is provided with a hoisting machine 9 and lifting machines 5a and 5b for the first machine room unit
  • the second machine room unit 4 is provided with a main rope drum 15 and a lifting machine for the second machine room unit.
  • 6a, 6b, 6c are provided.
  • the hoisting machine 9, the lifting machines 5a and 5b for the first machine room unit, the main rope drum 15, and the lifting machines 6a, 6b and 6c for the second machine room unit are heavy and cause an increase in the weight of the machine room unit. ing.
  • the number of lifting machines increases, and the beam or wall on the specific floor on which the machine room unit is mounted increases. , There is a problem that a load exceeding the allowable load is applied.
  • the machine room unit including the hoisting machine 9 and the main cable drum 15 and the like is divided into a plurality of machine room units 3 and a second machine room unit 4, and each machine room unit is divided into a plurality of machine room units. It is placed on a beam or wall (beams 110c, 110d in FIG. 1) on different building floors.
  • the machine room unit can be installed without applying a load exceeding the allowable load to the beam or wall on a specific floor.
  • the construction elevator device moves the machine room unit to the upper building floor as the construction on the building floor progresses.
  • the method of moving the machine room unit will be described with reference to FIGS. 2 and 3.
  • FIG. 2 is a schematic configuration diagram of a construction elevator device showing a state in which the second machine room unit is moved
  • FIG. 3 is a schematic configuration diagram of a construction elevator device showing a state in which the first machine room unit is moved. be.
  • the second machine room unit main rope gripping device 17 grips the weight of the main rope between the first machine room unit main rope gripping device 16 and the second machine room unit main rope gripping device 17. It may be configured. If the distance between the first machine room unit main rope gripping device 16 and the second machine room unit main rope gripping device 17 is long, the weight of the main rope between them becomes large, and the second machine room unit main rope gripping device 17 is opened. At that time, the main rope 10 may be unintentionally pulled out from the main rope drum 15 depending on the weight of the main rope.
  • the second machine room unit main rope gripping device 17 grips the weight of the main rope between the first machine room unit main rope gripping device 16 and the second machine room unit main rope gripping device 17.
  • Safety and workability can be improved by pulling out the main rope 10 from the main rope drum 15 by the force of lifting the second machine room unit 4 of the lifting machines 6a, 6b, 6c for the machine room unit.
  • the first machine room unit 3 and the second machine room unit 4 are provided with movable support portions 8 and 13, respectively, but the machine room unit is provided with non-movable support members. You may do so.
  • the rope for suspending the first machine room unit 3 is pulled out from the lifting machines 5a and 5b for the first machine room unit. Further, the main rope 10 is pulled out from the main rope drum 15. In this way, the second machine room unit 4 can be moved to the upper building floor without moving the first machine room unit 3. At this time, since the main rope 10 is gripped by the first machine room unit main rope gripping device 16, the main rope 10 does not extend downward from the first machine room unit 3, and the second machine room unit 4 The car 11 can be used even during the work of moving the car to the upper building floor.
  • the weight of the first machine room unit 3 and the weight of the basket 11 are temporarily added to the beam supporting the second machine room unit while the first machine room unit 3 is being lifted.
  • the weight of the balanced weight 12 is not applied because it is supported by the shock absorber for the balanced weight.
  • the weight additionally loaded is, for example, the car side guide rails 101a, 101b, or the weight side guide rails 102a, 102b by using the emergency stop device provided in the first machine room unit 3 (not shown). It may be configured to be supported by.
  • each of the car-side guide rails 101a and 101b or the weight-side guide rails 102a and 102b may have a structure in which the additional weight is supported on a fish plate (not shown) that connects the guide rails to each other.
  • the movable support portion 8 is extended to engage with the beam 110c or the wall on the upper building floor. After that, the main rope 10 is gripped by the first machine room unit main rope gripping device 16. As described above, in the first embodiment, since the first machine room unit 3 is provided with the movable support portion 8, the lifting workability of the first machine room unit 3 can be improved.
  • the moving distance of the car 11 in the ascending / descending direction is extended by the amount that the main rope 10 is pulled out from the main rope drum 15.
  • the machine room unit is divided into a plurality of the first machine room unit 3 and the second machine room unit 4, and each machine room unit is divided into beams or walls of different building floors (beams in FIG. 1). Since it is mounted on 110c, 110d), the machine room unit can be installed without increasing the number of lifting machines and without applying a load exceeding the allowable load to the beam or wall on a specific floor. can.
  • the main rope 10 is gripped by the first machine room unit main rope gripping device 16, even during the work of moving the second machine room unit 4 to the upper building floor. It becomes possible to use the basket 11.
  • the lifting machines 6a, 6b for the second machine room unit since the first machine room unit 3 is mounted on the beam or wall of the building floor, the lifting machines 6a, 6b for the second machine room unit, It is sufficient for 6c to have enough power to pull up the second machine room unit 4, and it is possible to prevent the lifting machines 6a, 6b, 6c for the second machine room unit from becoming larger.
  • the construction elevator device 1 having such a configuration operates a car 11 (balance weight 12) installed below the first machine room unit 3 in the ascending / descending direction, and for example, a construction worker is placed in the first machine room. It is transported to each building floor below the unit 3. Further, in the second machine room unit 4, a main rope drum 15 for extending the main rope 10 is installed, and the main rope does not stop the ascending / descending operation of the car 11 (balance weight 12) by the first machine room unit 3. Since the extension work of 10 can be performed, the stop time of the elevator service due to the lifting of the machine room can be shortened.
  • FIG. 4 is a plan view showing the arrangement relationship between the lifting machine for the machine room unit and the machine room unit of the construction elevator device according to the second embodiment.
  • the car 11 is arranged below the second machine room unit 4 (see FIGS. 1 to 3). Further, as shown in FIG. 4, the hoistway 100 is provided with a pair of car-side guide rails 101a and 101b for guiding the car 11 in the ascending / descending direction.
  • the pair of car-side guide rails 101a and 101b extend along the wall surfaces facing each other in the hoistway 100.
  • the car 11 is provided with a pair of car-side guide shoes (not shown) that are slidably engaged with the pair of car-side guide rails 101a and 101b.
  • the second machine room unit 4 is provided with a pair of machine room side guide shoes 31a and 31b that are slidably engaged with the pair of car side guide rails 101a and 101b. Therefore, the pair of car-side guide rails 101a and 101b guide the second machine room unit 4 in the elevating direction.
  • the suspension points 21a, 21b, and 21c are arranged at positions that overlap with the virtual circle C centered on the center of gravity G of the second machine room unit 4. As a result, when viewed from the virtual horizontal plane above the second machine room unit 4, the second machine room unit 4 by the lifting machines 6a, 6b, 6c for the second machine room unit from the center of gravity G of the second machine room unit 4. The distances to the suspension points 21a, 21b, 21c are substantially equal.
  • center of gravity G of the second machine room unit 4 is located in the area surrounded by the virtual straight line connecting the suspension points 21a, 21b, and 21c.
  • the load is uniformly applied to the suspension points 21a, 21b, and 21c of the second machine room unit 4, so that the inclination of the second machine room unit 4 can be effectively prevented, and the inclination of the second machine room unit 4 can be effectively prevented. Stability can be maintained. Further, the second machine room unit 4 can be lifted while preventing an overload on one machine room unit lifting machine.
  • the suspension points 21a, 21b, 21c of the second machine room unit 4 sandwich the car-side virtual straight line L1 connecting the pair of car-side guide rails 101a, 101b. It is arranged on the side opposite to the center of gravity G of the second machine room unit 4. As a result, the suspension points 21a and 21b are arranged on the outer side opposite to the center of gravity G with respect to the car-side virtual straight line L1. As a result, even if an eccentric load is generated in the second machine room unit 4, it is possible to prevent an overload from being applied to the car side guide rails 101a and 101b.
  • the center of gravity G of the second machine room unit 4 changes depending on the hoistway dimensions of the target elevator device and the installation position of the machine (winding machine). Further, the mounting positions of the pair of car-side guide rails 101a and 101b also change depending on the target elevator device. Therefore, the suspension points 21a, 21b, 21c in the construction elevator device of this embodiment are determined according to the center of gravity G of the second machine room unit 4 and the positions of the pair of car-side guide rails 101a, 101b.
  • FIG. 5 is a plan view showing the arrangement relationship between the lifting machine for the machine room unit of the construction elevator device according to the second embodiment, the second machine room unit, the car, and the balance weight.
  • the construction elevator device according to the second embodiment has the same configuration as the construction elevator device according to the first embodiment described above, and the difference is that the lifting machines 6a, 6b for the second machine room unit, This is the suspension point position of the second machine room unit 4 according to 6c. Therefore, here, the suspension point position of the second machine room unit 4 according to the second embodiment will be described, and the description of the configuration common to the first embodiment will be omitted.
  • a balance weight 12 is arranged below the second machine room unit 4 (see FIGS. 1 to 3).
  • the hoistway 100 is provided with a pair of weight side guide rails 102a and 102b for guiding the balance weight 12 in the elevating direction.
  • the pair of weight side guide rails 102a and 102b extend along the wall surfaces facing each other in the hoistway 100.
  • the weight-side virtual straight line L2 connecting the pair of weight-side guide rails 102a and 102b is substantially parallel to the car-side virtual straight line L1 connecting the pair of car-side guide rails 101a and 101b. That is, the pair of weight-side guide rails 102a and 102b and the pair of car-side guide rails 101a and 101b are provided on a pair of wall surfaces facing each other in the hoistway 100.
  • the balance weight 12 is provided with a pair of weight side guide shoes (not shown) that are slidably engaged with the pair of weight side guide rails 102a and 102b.
  • the second machine room unit 4 is provided with a pair of machine room side guide shoes 32a and 32b that are slidably engaged with the pair of weight side guide rails 102a and 102b. Therefore, the pair of weight side guide rails 102a and 102b guide the second machine room unit 4 in the elevating direction.
  • the suspension point position of the second machine room unit 4 according to the second embodiment satisfies all the conditions of the suspension point position of the second machine room unit 4 according to the first embodiment. Therefore, the inclination of the second machine room unit 4 can be effectively prevented, and the stability of the second machine room unit 4 can be maintained. Further, it is possible to prevent an overload on one lifting machine for a machine room unit. Further, even if an eccentric load is generated in the second machine room unit 4, it is possible to prevent an overload from being applied to the car side guide rails 101a and 101b.
  • the suspension point 21c is opposite to the center of gravity G of the second machine room unit 4 with the weight side virtual straight line L2 in between. It is located on the side.
  • the suspension point 21c is arranged on the outer side opposite to the center of gravity G with respect to the weight side virtual straight line L2.
  • the center of gravity G of the second machine room unit 4 changes depending on the hoistway dimensions of the target elevator device and the installation position of the machine (winding machine). Further, the mounting positions of the pair of car-side guide rails 101a and 101b and the pair of weight-side guide rails 102a and 102b also change depending on the target elevator device. Therefore, the suspension points 21a, 21b, and 21c in the construction elevator device of this embodiment are determined according to the center of gravity G of the second machine room unit 4 and the positions of various guide rails.
  • FIG. 6 is a schematic configuration diagram of a construction elevator device according to a third embodiment.
  • the construction elevator device has a different configuration of the lifting machine for the first machine room unit and the lifting machine for the second machine room unit from the construction elevator device according to the first and second embodiments.
  • the machine room unit is composed of a first machine room unit and a second machine room unit.
  • the construction elevator device 60 As shown in FIG. 6, the construction elevator device 60 according to the third embodiment is provided in the hoistway 100 formed in the building structure.
  • the construction elevator device 60 includes a support member 2, a machine room unit (first machine room unit 3, second machine room unit 4), and a machine room unit lifting machine (first machine room unit lifting machine 51a, 51b, 51c, lifting machines for the second machine room unit 61a, 61b, 61c) are provided.
  • the second machine room unit 4 is suspended from the support member 2, is lifted by three or more lifting machines 61a, 61b, 61c for the second machine room unit installed on the support member 2, and moves in the elevating direction. ..
  • the first machine room unit 3 is suspended from the second machine room unit 4, and is lifted by three or more lifting machines 51a, 51b, 51c for the first machine room unit installed in the second machine room unit 4. And move in the ascending / descending direction.
  • the lifting machine for the first machine room unit is installed in either the first machine room unit 3 or the second machine room unit 4, and the first machine room unit 3 is installed as in the first embodiment (FIG. 1).
  • the first machine room unit 3 may be lifted by N: 1 (N is 2 or more) roping via a plurality of pulleys 7 installed in each of the second machine room unit 4.
  • the support member 2 is located at the upper part in the hoistway 100 and is mounted on the beam 110a or the wall of the building.
  • the second machine room unit 4 is suspended from the support member 2 by the lifting machines 61a, 61b, 61c for the second machine room unit installed on the support member 2, and is configured to be movable in the elevating direction.
  • the first machine room unit 3 is suspended from the second machine room unit 4 by the lifting machines 51a, 51b, 51c for the first machine room unit installed in the second machine room unit 4, and can be moved in the elevating direction. It is configured in.
  • the first machine room unit 3 has a movable support portion 8 that expands and contracts toward the wall surface of the hoistway 100 (in the left-right direction in FIG. 1) and engages with the beam 110d of the building or the wall when extended. Further, the first machine room unit 3 is a car arranged on the hoisting machine 9, the main rope 10 wound around the sheave of the hoisting machine 9, and the main rope 10 located on one side of the hoisting machine 9. It has 11 and a balance weight 12 arranged on the main rope 10 located on the other side of the hoisting machine 9. The hoisting machine 9 winds up the main rope 10 and raises and lowers the car 11 (balance weight 12).
  • the second machine room unit 4 has a movable support portion 13 that expands and contracts toward the wall surface of the hoistway 100 (in the left-right direction in FIG. 1) and engages with the beam 110c of the building or the wall when extended.
  • the main rope 10 is fixed to the first machine room unit 3 by the main rope fixing portion 14 provided in the first machine room unit 3.
  • the other end side of the main rope 10 extends upward from the first machine room unit 3 and is wound around a main rope drum 15 provided in the second machine room unit 4.
  • the main rope drum 15 is provided to extend the main rope 10.
  • the main rope 10 is provided by the first machine room unit main rope gripping device 16 provided in the first machine room unit 3 and the second machine room unit main rope gripping device 17 provided in the second machine room unit 4, respectively. Be grasped.
  • the first machine room unit 3 is provided with a hoisting machine 9, and the second machine room unit 4 is provided with a main rope drum 15 and lifting machines 51a, 51b, 51c for the first machine room unit.
  • the hoisting machine 9, the lifting machines 51a and 51b for the first machine room unit, and the main rope drum 15 are heavy and make the machine room unit heavier. When these are incorporated into one machine room unit and mounted on a beam or wall of a building on a specific floor, there is a problem that a load exceeding the allowable load is applied to the beam or wall on the specific floor. ..
  • the machine room unit including the hoisting machine 9, the main cable drum 15, and the like is divided into a first machine room unit 3 and a second machine room unit 4, and each machine room unit is divided into a plurality of machine room units. Is placed on a beam or wall (beams 110c, 110d in FIG. 1) on different building floors.
  • the machine room unit can be installed without applying a load exceeding the allowable load to the beam or wall on a specific floor.
  • the construction elevator device moves the machine room unit to the upper building floor as the construction on the building floor progresses.
  • the second machine room unit main rope gripping device 17 When moving the second machine room unit 4 from the current position of the building floor (beam 110c) to the position of the upper building floor (beam 110b), the second machine room unit main rope gripping device 17 is opened and the second machine room unit main rope gripping device 17 is opened. , The main rope 10 is gripped by the first machine room unit main rope gripping device 16. Then, the rope is pulled out from the lifting machines 51a, 51b, 51c for the first machine room unit, the second machine room unit 4 is pulled up by the lifting machines 61a, 61b, 61c for the second machine room unit, and the movable support portion 13 is reduced. ..
  • the movable support portion 13 is extended to engage with the beam 110b or the wall on the upper building floor. As described above, in the third embodiment, since the second machine room unit 4 is provided with the movable support portion 13, the lifting workability of the second machine room unit 4 can be improved.
  • the rope for suspending the first machine room unit 3 is pulled out from the lifting machines 51a, 51b, 51c for the first machine room unit. Further, the main rope 10 is pulled out from the main rope drum 15. In this way, the second machine room unit 4 can be moved to the upper building floor without moving the first machine room unit 3. At this time, since the main rope 10 is gripped by the first machine room unit main rope gripping device 16, the main rope 10 does not extend downward from the first machine room unit 3, and the second machine room unit 4 The car 11 can be used even during the work of moving the car to the upper building floor.
  • the second machine room unit main rope gripping device 17 may be configured to grip the weight of the main rope between the first machine room unit main rope gripping device 16 and the second machine room unit main rope gripping device 17. .. If the distance between the first machine room unit main rope gripping device 16 and the second machine room unit main rope gripping device 17 is long, the weight of the main rope between them becomes large, and the second machine room unit main rope gripping device 17 is opened. At that time, the main rope 10 may be unintentionally pulled out from the main rope drum 15 depending on the weight of the main rope. On the other hand, the second machine room unit main rope gripping device 17 grips the weight of the main rope between the first machine room unit main rope gripping device 16 and the second machine room unit main rope gripping device 17. Safety and workability can be improved by pulling out the main rope 10 from the main rope drum 15 by the force of lifting the second machine room unit 4 of the lifting machines 6a, 6b, 6c for the machine room unit.
  • the balance weight 12 is used for the balance weight (not shown). It is supported by a shock absorber to reduce the tension applied to the main cable 10, the first machine room unit 3 and the car 11 are connected by a chain (see the chain 18 in FIG. 3), and the first machine room unit main cable gripping device 16 is connected. At the same time as opening, the main rope 10 is gripped by the second machine room unit main rope gripping device 17. Then, the first machine room unit 3 is pulled up by the lifting machines 51a, 51b, 51c for the first machine room unit, and the movable support portion 8 is reduced.
  • the movable support portion 8 is extended to engage with the beam 110c or the wall on the upper building floor. After that, the main rope 10 is gripped by the first machine room unit main rope gripping device 16. As described above, in the third embodiment, since the first machine room unit 3 is provided with the movable support portion 8, the lifting workability of the first machine room unit 3 can be improved.
  • the moving distance of the car 11 in the ascending / descending direction is extended by the amount that the main rope 10 is pulled out from the main rope drum 15.
  • the machine room unit is divided into a plurality of the first machine room unit 3 and the second machine room unit 4, and each machine room unit is divided into beams on different building floors (beam 110c, in FIG. 1). Since it is mounted on 110d), the machine room unit can be installed without applying a load exceeding the permissible load to the beam or wall on the specific floor.
  • the main rope 10 is gripped by the first machine room unit main rope gripping device 16, even during the work of moving the second machine room unit 4 to the upper building floor. It becomes possible to use the basket 11.
  • the lifting machines 61a, 61b for the second machine room unit since the first machine room unit 3 is mounted on the beam or the wall of the building floor, the lifting machines 61a, 61b for the second machine room unit, It suffices for 61c to have enough power to pull up the second machine room unit 4, and it is possible to prevent the lifting machines 6a, 6b, 6c for the second machine room unit from becoming larger.
  • the second machine room is equal to the weight of the lifting machines 61a, 61b, 61c for the second machine room unit.
  • the weight of the unit 4 can be reduced, and the load applied to the beam or wall on the specific floor on which the second machine room unit 4 is placed can be reduced.
  • the construction elevator device 1 having such a configuration operates a car 11 (balance weight 12) installed below the first machine room unit 3 in the ascending / descending direction, and for example, a construction worker is placed in the first machine room. It is transported to each building floor below the unit 3. Further, in the second machine room unit 4, a main rope drum 15 for extending the main rope 10 is installed, and the main rope does not stop the raising and lowering operation of the car 11 (balance weight 12) by the first machine room unit 3. Since the extension work of 10 can be performed, the stop time of the elevator service due to the lifting of the machine room can be shortened.
  • the construction elevator devices according to the first and second embodiments described above are arranged below the support member (support member 2) provided in the hoistway (hoistway 100) and below the support member.
  • the first machine room unit (first machine room unit 3), the second machine room unit (second machine room unit 4), and the second machine room unit are suspended from the support member so as to be movable in the elevating direction. It is installed in the lifting machine for the machine room unit (lifting machines 6a, 6b, 6c for the second machine room unit) and the first machine room unit, and the first machine room unit can be moved in the ascending / descending direction from the second machine room unit.
  • the machine room unit is divided into a first machine room unit and a second machine room unit, and the first machine room unit and the second machine room unit are placed on beams or walls of different building floors.
  • the loads of the first machine room unit and the second machine room unit can be distributed to the beams of different building floors, so that the load exceeding the allowable load on the beams or walls of the specific floor can be applied.
  • the machine room unit can be installed without such a problem.
  • the machine room unit is divided into a plurality of parts (first machine room unit 3, second machine room unit 4), so that the main rope (main rope 10) is extended. It is possible to shorten the stop time of the elevator service when the machine room is lifted.
  • the main rope is gripped by the main rope gripping device of the first machine room unit, even during the work of moving the second machine room unit to the upper building floor. , It becomes possible to use a basket.
  • the second machine room unit has three or more hanging points.
  • the distance from the center of gravity (center of gravity G) of the machine room unit to each suspension point is approximately equal, and the area surrounded by a virtual straight line connecting the suspension points.
  • the center of gravity is located inside.
  • the load is uniformly applied to the three suspension points of the second machine room unit, so that the inclination of the second machine room unit can be effectively prevented and the stability of the second machine room unit can be maintained. can. Further, the machine room unit can be lifted while preventing an overload on one machine room unit lifting machine.
  • a pair of car side guide rails (a pair of car side guide rails 101a) for guiding the car (car 11) in the elevating direction are provided.
  • 101b) are provided.
  • the suspension points (suspension points 21a and 21b) at least one of the three or more suspension points of the machine room unit are the car-side virtual straight lines (car-side virtual straight lines L1) connecting the pair of car-side guide rails. It is located on the opposite side of the center of gravity.
  • a pair of weight side guide rails (a pair of weight side guide rails) for guiding the balance weight (balance weight 12) in the ascending / descending direction. 102a, 102b) are provided.
  • the weight-side virtual straight line (weight-side virtual straight line L2) connecting the pair of weight-side guide rails is substantially parallel to the car-side virtual straight line (car-side virtual straight line L1).
  • the hanging points (hanging points 21c) other than the hanging points (hanging points 21a and 21b) arranged on the opposite side of the center of gravity with the virtual straight line on the car side sandwiched are. It is located on the opposite side of the center of gravity with the virtual straight line on the weight side in between.
  • the construction elevator device includes a support member (support member 2) provided in the hoistway (hoistway 100) and a first machine room unit (support member 2) arranged below the support member.
  • the first machine room unit 3), the second machine room unit (second machine room unit 4), and the second machine room which is installed on the support member and suspends the second machine room unit from the support member so as to be movable in the elevating direction.
  • the lifting machine for the unit lifting machines 61a, 61b, 61c for the second machine room unit
  • the first machine room unit installed in the second machine room unit were suspended so as to be movable in the elevating direction. It is equipped with a lifting machine for a first machine room unit (lifting machines for a first machine room unit 51a, 51b, 51c).
  • the weight of the machine room unit can be reduced by the weight of the lifting machine for the second machine room unit.
  • the driving force for the lifting machine for the second machine room unit to pull up the first machine room unit can be reduced, and the size of the lifting machine for the second machine room unit can be suppressed.
  • the second machine room unit 4 is mounted on the beam or the wall of the building floor, so that the lifting machine for the second machine room unit is the second. It suffices to have enough power to pull up the machine room unit 4, and it is possible to prevent the lifting machine for the second machine room unit from becoming large.
  • the present invention is not limited to the above-described examples, and includes various modifications.
  • the above-described embodiment describes the present invention in an easy-to-understand and detailed manner, and the present invention is not necessarily limited to the one including all the configurations described.
  • it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment and it is also possible to add the configuration of another embodiment to the configuration of one embodiment.

Landscapes

  • Types And Forms Of Lifts (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

La présente invention comprend : une machine de levage (9) qui est située à l'intérieur d'une cage (100), et déplace une cabine (11) et un contrepoids (12) suspendu à un câble de régulateur (10) dans la direction de levage/d'abaissement ; un tambour de régulateur (15) qui stocke la partie d'extension du câble de régulateur (10) ; et une unité de salle de machines équipée de la machine de levage (9) et du tambour de régulateur (15).　L'unité de salle de machines est divisée en une première unité de salle de machines (3) équipée de la machine de levage (9), et une seconde unité de salle de machines (4) équipée du tambour de régulateur (15). La première unité de salle de machines (3) divisée et la seconde unité de salle de machines (4) sont conçues de façon à être placées sur des poutres ou des parois de différents étages de construction.
PCT/JP2020/011369 2020-03-16 2020-03-16 Dispositif d'ascenseur de construction et procédé d'extension de câble de régulateur pour ascenseur WO2021186492A1 (fr)

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JP2022508611A JP7404506B2 (ja) 2020-03-16 2020-03-16 工事用エレベーター装置及びエレベーターの主索延長方法
PCT/JP2020/011369 WO2021186492A1 (fr) 2020-03-16 2020-03-16 Dispositif d'ascenseur de construction et procédé d'extension de câble de régulateur pour ascenseur

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033586A (en) * 1990-07-11 1991-07-23 Otis Elevator Company Construction elevator assembly
JP2000226169A (ja) * 1999-02-08 2000-08-15 Hitachi Building Systems Co Ltd エレベータの据付方法
JP2001322778A (ja) * 2000-05-17 2001-11-20 Hitachi Building Systems Co Ltd 工事用エレベータの解体方法および工事用エレベータの本設エレベータへの盛り替え方法
JP2009196808A (ja) * 2008-02-25 2009-09-03 Mitsubishi Electric Corp エレベータの据付装置
JP2013532104A (ja) * 2010-05-28 2013-08-15 コネ コーポレイション 方法およびエレベータ装置
JP2015000798A (ja) * 2013-06-17 2015-01-05 株式会社日立ビルシステム エレベータ据付用作業床装置
WO2020035930A1 (fr) * 2018-08-16 2020-02-20 三菱電機株式会社 Procédé d'extension de hauteur de levage d'ascenseur de construction et gabarit d'abaissement de câble d'ascenseur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033586A (en) * 1990-07-11 1991-07-23 Otis Elevator Company Construction elevator assembly
JP2000226169A (ja) * 1999-02-08 2000-08-15 Hitachi Building Systems Co Ltd エレベータの据付方法
JP2001322778A (ja) * 2000-05-17 2001-11-20 Hitachi Building Systems Co Ltd 工事用エレベータの解体方法および工事用エレベータの本設エレベータへの盛り替え方法
JP2009196808A (ja) * 2008-02-25 2009-09-03 Mitsubishi Electric Corp エレベータの据付装置
JP2013532104A (ja) * 2010-05-28 2013-08-15 コネ コーポレイション 方法およびエレベータ装置
JP2015000798A (ja) * 2013-06-17 2015-01-05 株式会社日立ビルシステム エレベータ据付用作業床装置
WO2020035930A1 (fr) * 2018-08-16 2020-02-20 三菱電機株式会社 Procédé d'extension de hauteur de levage d'ascenseur de construction et gabarit d'abaissement de câble d'ascenseur

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