WO2021124481A1 - Dispositif d'ascenseur - Google Patents

Dispositif d'ascenseur Download PDF

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Publication number
WO2021124481A1
WO2021124481A1 PCT/JP2019/049624 JP2019049624W WO2021124481A1 WO 2021124481 A1 WO2021124481 A1 WO 2021124481A1 JP 2019049624 W JP2019049624 W JP 2019049624W WO 2021124481 A1 WO2021124481 A1 WO 2021124481A1
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WO
WIPO (PCT)
Prior art keywords
machine room
suspension
suspension body
elevator
control device
Prior art date
Application number
PCT/JP2019/049624
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English (en)
Japanese (ja)
Inventor
力雄 近藤
大登 古平
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2021565233A priority Critical patent/JP7161819B2/ja
Priority to CN201980102353.3A priority patent/CN114761344B/zh
Priority to DE112019007977.8T priority patent/DE112019007977T5/de
Priority to PCT/JP2019/049624 priority patent/WO2021124481A1/fr
Publication of WO2021124481A1 publication Critical patent/WO2021124481A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B19/00—Mining-hoist operation

Definitions

  • the present disclosure relates to an elevator device having a machine room capable of moving upward in a hoistway.
  • the machine room is gradually raised according to the progress of the building construction work.
  • either the car or the counterweight is hung in the machine room before pulling up the machine room.
  • the other side of the car and the counterweight is fixed to the building.
  • the suspension body wound by the winding device is unwound into the hoistway. After that, the machine room is pulled up until the suspension body is no longer loosened (see, for example, Patent Document 1).
  • the present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to obtain an elevator device capable of shortening the suspension period due to the upward movement of the machine room.
  • the elevator device has a machine room and a drive sheave capable of moving upward in the hoistway, and is wound around a hoisting machine and a drive sheave provided in the machine room.
  • It is equipped with an elevator, a take-up device for winding the suspension body, and a control device for controlling the hoisting machine, and the control device controls the hoisting machine when moving upward in the machine room to control the suspension body. Send out from the take-up device to the hoistway.
  • the elevator device of the present disclosure it is possible to shorten the period of suspension of use due to the upward movement of the machine room.
  • FIG. It is a block diagram which shows the elevator apparatus by Embodiment 1.
  • FIG. It is a block diagram which shows the main part of the elevator apparatus of FIG.
  • It is a flowchart which shows the operation of the control device at the time of moving upward of the machine room of FIG.
  • FIG. It is a block diagram which shows the main part of the elevator apparatus according to Embodiment 2.
  • FIG. It is a block diagram which shows the main part of the elevator apparatus of FIG.
  • FIG. It is a block diagram which shows the hoisting machine of the elevator apparatus by Embodiment 4.
  • FIG. It is a block diagram which shows the hoisting machine of the elevator apparatus according to Embodiment 5.
  • It is a block diagram which shows the main part of the elevator apparatus of FIG. It is a block diagram which shows the modification of the elevator apparatus according to Embodiment 6.
  • Embodiment 8 It is a block diagram which shows the main part of the elevator apparatus of FIG.
  • FIG. 1 is a configuration diagram showing an elevator device according to the first embodiment.
  • the building 1 under construction is provided with a hoistway 2.
  • a crane device 3 which is a machine room lifting device is installed in the upper part of the building 1.
  • the crane device 3 has a crane main body 4 and a crane rope 5.
  • the elevator device 10 includes a machine room 11, a hoisting machine 12, a suspension body 13, a car 14, a balance weight 15, a winding device 16, and a control device 17.
  • the machine room 11 is connected to the lower end of the crane rope 5 and is suspended in the hoistway 2. Further, the machine room 11 can be moved in the vertical direction in the hoistway 2 by the crane device 3. The machine room 11 is gradually pulled up according to the progress of the construction work of the building 1.
  • the hoisting machine 12 is provided in the machine room 11. Further, the hoisting machine 12 has a drive sheave 18, a hoisting machine motor (not shown), and a pair of hoisting machine brakes 19.
  • the hoisting machine motor rotates the drive sheave 18.
  • the pair of hoist brakes 19 keeps the drive sheave 18 stationary. Further, the pair of hoisting machine brakes 19 brakes the rotation of the drive sheave 18.
  • the suspension body 13 is wound around the drive sheave 18. As the suspension body 13, a plurality of ropes or a plurality of belts are used.
  • the suspension body 13 has a first end portion 13a and a second end portion 13b (not shown in FIG. 1).
  • the first end portion 13a is one end portion in the length direction of the suspension body 13 and is located in the winding device 16.
  • the second end portion 13b is the other end portion of the suspension body 13 in the length direction and is connected to the machine room 11.
  • the car 14 and the balance weight 15 are located below the machine room 11.
  • the car 14 has a car main body 20 and a rotatable car suspension wheel 21.
  • the balance weight 15 has a weight body 22 and a rotatable balance weight suspension wheel 23.
  • the suspension body 13 is wound around the car suspension wheel 21, the drive sheave 18, and the balance weight suspension wheel 23 in this order from the winding device 16 side, and reaches the second end portion 13b.
  • the roping method of the elevator device 10 is a 2: 1 roping method.
  • the car 14 is suspended in the hoistway 2 by the suspension body 13.
  • the balance weight 15 is suspended in the hoistway 2 by the suspension body 13 on the opposite side of the drive sheave 18 from the car 14.
  • FIG. 1 shows a state when the machine room 11 is moved upward, not during normal operation of the car 14.
  • a pair of car guide rails (not shown) and a pair of balanced weight guide rails (not shown) are installed in the hoistway 2.
  • the pair of car guide rails guides the car 14 to move up and down.
  • the pair of balanced weight guide rails guide the ascending and descending of the balanced weight 15.
  • the take-up device 16 is provided in the machine room 11. A part of the suspension body 13 is wound around the winding device 16.
  • the control device 17 controls the hoisting machine 12. During normal operation of the car 14, the control device 17 controls the operation of the car 14 by controlling the hoisting machine 12.
  • the car 14 When moving upward in the machine room 11, the car 14 is suspended from the machine room 11 via a winch 6 which is an elevating body lifting device.
  • the first elevating body in the elevator device 10 of FIG. 1 is a car 14.
  • the second elevating body in the elevator device 10 of FIG. 1 is a balance weight 15.
  • the control device 17 rotates the drive sheave 18 by controlling the hoisting machine 12. At this time, the drive sheave 18 is rotated clockwise in FIG. 1, and the suspension body 13 is supplied to the counterweight 15 side with respect to the drive sheave 18. The suspension body 13 is pulled out from the winding device 16 into the hoistway 2 by a length corresponding to the amount of movement of the machine room 11.
  • the take-up device 16 or the machine room 11 is provided with a pull-out prevention mechanism (not shown).
  • the withdrawal blocking mechanism prevents the suspension body 13 from being pulled out from the take-up device 16 during the normal operation of the car 14.
  • the withdrawal prevention mechanism When moving upward in the machine room 11, the withdrawal prevention mechanism is released. With the withdrawal blocking mechanism released, the holding force of the take-up device 16 with respect to the suspension body 13 is smaller than the traction force between the drive sheave 18 and the suspension body 13.
  • FIG. 2 is a block diagram showing a main part of the elevator device 10 of FIG.
  • the control device 17 has a drive control unit 17a, a torque detection unit 17b, and a notification unit 17c as functional blocks.
  • the drive control unit 17a controls the drive of the hoisting machine motor and the operation of the hoisting machine brake 19.
  • the torque detection unit 17b detects the torque load applied to the drive sheave 18 based on the signal from the hoisting machine 12.
  • the drive control unit 17a controls the hoisting machine 12 so that the torque load of the hoisting machine 12 is within the set range based on the signal from the torque detecting unit 17b when the machine room 11 moves upward. To do. As a result, the drive control unit 17a controls the hoisting machine 12 so that the tension of the suspension body 13 is within the set range when the machine room 11 moves upward.
  • the drive control unit 17a is set with a first set value Ts1 for torque load, a second set value Ts2 for torque load, a lower limit value Tmin for torque load, and an upper limit value Tmax for torque load.
  • the first set value Ts1 is larger than the lower limit value Tmin and smaller than the second set value Ts2.
  • the second set value Ts2 is a value smaller than the upper limit value Tmax. That is, the relationship of Tmin ⁇ Ts1 ⁇ Ts2 ⁇ Tmax is established.
  • the first set value Ts1 is a value corresponding to the lowest value in the tension setting range of the suspension body 13.
  • the second set value Ts2 is a value corresponding to the maximum value of the tension setting range of the suspension body 13.
  • the lower limit value Tmin is a value corresponding to the lower limit value of the tension of the suspension body 13.
  • the upper limit value Tmax is a value corresponding to the upper limit value of the tension of the suspension body 13.
  • the drive control unit 17a reduces the rotation speed of the drive sheave 18. As a result, the delivery speed of the suspension body 13 into the hoistway 2 is reduced.
  • the drive control unit 17a increases the rotation speed of the drive sheave 18. As a result, the speed at which the suspension body 13 is sent into the hoistway 2 is increased.
  • the drive control unit 17a stops the rotation of the drive sheave 18. As a result, the delivery of the suspension body 13 into the hoistway 2 is stopped.
  • the notification unit 17c When the torque load detection value Td becomes larger than the upper limit value Tmax when the machine room 11 moves upward, the notification unit 17c outputs a work stop command for stopping the movement of the machine room 11 to the outside.
  • the work stop command is a command to directly stop the crane device 3. Further, if the operator can immediately stop the crane device 3, the work stop command may be a command for informing the worker that the movement of the machine room 11 should be stopped.
  • the drive control unit 17a stops the rotation of the drive sheave 18.
  • FIG. 3 is a flowchart showing the operation of the control device 17 when the machine room 11 of FIG. 1 is moved upward.
  • the control device 17 rotates the drive sheave 18 at a preset speed in step S101.
  • step S102 the control device 17 determines whether or not the torque load detection value Td is equal to or less than the upper limit value Tmax.
  • the control device 17 determines in step S103 whether or not the detected value Td of the torque load is equal to or greater than the lower limit value Tmin.
  • the control device 17 determines in step S104 whether the detected value Td of the torque load is equal to or more than the first set value Ts1 and equal to or less than the second set value Ts2.
  • the control device 17 determines that the tension of the suspension body 13 is within the set range, and moves the machine room 11 in step S105. Determine if you want to finish the work. Whether or not to end the moving work is determined by the presence or absence of input of the work end signal to the control device 17.
  • the control device 17 corrects the speed of the drive sheave 18 in step S106.
  • the control device 17 When the detected value Td is smaller than the first set value Ts1, the control device 17 reduces the speed of the drive sheave 18 by a preset speed. When the detected value Td is larger than the second set value Ts2, the control device 17 increases the speed of the drive sheave 18 by a preset speed.
  • control device 17 determines in step S105 that the work is not completed, the control device 17 repeatedly executes the processes from step S102 to step S106.
  • step S103 If the detected value Td is smaller than the lower limit value Tmin in step S103, the control device 17 stops the rotation of the drive sheave 18 in step S107. After that, the control device 17 determines in step S105 whether or not to finish the moving work of the machine room 11.
  • the control device 17 corrects the rotation speed of the drive sheave 18 in step S106.
  • control device 17 determines in step S105 that the movement work of the machine room 11 is completed, the control device 17 stops the rotation of the drive sheave 18 in step S108 and ends the process of FIG.
  • control device 17 determines in step S102 that the detected value Td of the torque load is larger than the upper limit value Tmax, the control device 17 outputs a work stop command to the outside in step S109 to stop the rotation of the drive sheave 18. , The process of FIG. 3 is completed.
  • the machine room 11 can be moved upward by the crane device 3. Therefore, the elevator device 10 is installed in the building 1 from the initial stage of the construction of the building 1, and the machine room 11 is gradually raised in response to the increase in the height of the building 1 to increase the elevator lifting stroke. Can be done.
  • the hoisting machine 12 is controlled by the control device 17, so that the suspension body 13 is sent out into the hoistway 2. Therefore, it is possible to shorten the period of suspension of use of the elevator device 10 due to the upward movement of the machine room 11. As a result, the construction period of the building 1 can be shortened and the construction can be completed at an early stage.
  • the control device 17 controls the hoisting machine 12 so that the tension of the suspension body 13 is within the set range based on the torque load of the hoisting machine 12. .. Therefore, an appropriate amount of the suspension body 13 can be automatically sent out into the hoistway 2 according to the moving speed of the machine room 11. That is, the sending work of the suspension body 13 can be automated.
  • FIG. 4 is a configuration diagram showing a modified example of the elevator device 10 according to the first embodiment.
  • the car 14 is supported by the support base 7 when the machine room 11 is moved upward.
  • the second elevating body in the elevator device 10 of FIG. 4 is a car 14.
  • the first elevating body in the elevator device 10 of FIG. 4 is a balance weight 15.
  • the second end portion 13b of the suspension body 13 is located in the take-up device 16.
  • the suspension body 13 is wound around the car suspension wheel 21, the drive sheave 18, and the balance weight suspension wheel 23 in this order from the first end portion 13a side to reach the winding device 16.
  • FIG. 5 is a block diagram showing a main part of the elevator device 10 according to the second embodiment.
  • the control device 17 of the second embodiment has a drive control unit 17a, an information acquisition unit 17d, a follow-up determination unit 17e, and a notification unit 17c as functional blocks.
  • the information acquisition unit 17d acquires movement information, which is information related to the movement of the machine room 11, from the outside when the machine room 11 moves upward.
  • the movement information includes, for example, at least one information of the movement amount and the movement speed of the machine room 11.
  • the movement information can be obtained from at least one signal of the drive state signal, the crane control signal, the crane detection signal, and the machine room detection signal.
  • the drive state signal is a signal corresponding to the drive state of the crane device 3, and is output from the drive unit of the crane device 3.
  • the crane control signal is a signal for controlling the crane device 3.
  • the crane detection signal is a signal from a sensor that detects the actual operation of the crane device 3.
  • the machine room detection signal is a signal from a sensor that directly detects the movement of the machine room 11.
  • the drive control unit 17a controls the hoisting machine 12 so as to follow the movement of the machine room 11 based on the information from the information acquisition unit 17d, and is a suspension body. 13 is supplied into the hoistway 2.
  • the supply of the suspension body 13 moves to the machine room 11 based on the information from the information acquisition unit 17d and the information from the drive control unit 17a. Determine if it can be followed.
  • the notification unit 17c stops the work for stopping the movement of the machine room 11. Output the command to the outside.
  • FIG. 6 is a flowchart showing the operation of the control device 17 of FIG. 5 when the machine room 11 is moving upward.
  • the control device 17 acquires the movement information in step S201.
  • step S202 the control device 17 calculates a drive command that follows the movement of the machine room 11, and outputs the calculated drive command to the hoisting machine 12.
  • control device 17 determines in step S203 whether or not the calculated drive command can follow the movement of the machine room 11.
  • step S204 determines in step S204 whether or not to end the movement work of the machine room 11. Whether or not to end the moving work is determined by the presence or absence of input of the work end signal to the control device 17.
  • control device 17 determines in step S204 that the work is not completed, the control device 17 repeatedly executes the processes from step S201 to step S204.
  • control device 17 determines in step S204 that the movement work of the machine room 11 is completed, the control device 17 outputs a command to stop the rotation of the drive sheave 18 to the hoisting machine 12 in step S205, and ends the process of FIG. To do.
  • step S203 the control device 17 determines in step S203 that it cannot follow.
  • step S206 the control device 17 outputs a work stop command to the outside, stops the rotation of the drive sheave 18, and ends the process of FIG.
  • the same effect as that of the first embodiment can be obtained by the configuration in which the hoisting machine 12 is controlled according to the pulling operation of the machine room 11 by the crane device 3.
  • FIG. 7 is a configuration diagram showing the elevator device 10 according to the third embodiment.
  • the tension detecting device 51 is provided in the machine room 11.
  • the tension detection device 51 detects the tension of the suspension body 13 at the second end portion 13b, and outputs a signal corresponding to the tension of the suspension body 13.
  • FIG. 8 is a block diagram showing a main part of the elevator device 10 of FIG.
  • the control device 17 has a drive control unit 17a, a tension monitoring unit 17g, and a notification unit 17c.
  • the tension monitoring unit 17g monitors whether the tension of the suspension body 13 is within the set range based on the signal from the tension detection device 51.
  • the drive control unit 17a controls the hoisting machine 12 so that the tension of the suspension body 13 is within the set range based on the signal from the tension monitoring unit 17g when the machine room 11 moves upward.
  • the notification unit 17c When the detection value of the tension of the suspension body 13 becomes larger than the upper limit value when the machine room 11 is moving upward, the notification unit 17c outputs a work stop command for stopping the movement of the machine room 11 to the outside. ..
  • Td in FIG. 3 is the detected value of tension
  • Tmax is the upper limit value of tension
  • Tmin is the lower limit value of tension
  • Ts1 is the first set value of tension
  • Ts2 is the second set value of tension.
  • the configuration and control method of the elevator device 10 are the same as those of the first embodiment, except that the hoisting machine 12 is controlled based on the tension of the suspension body 13 detected by the tension detection device 51.
  • the same effect as that of the first embodiment can be obtained by the configuration in which the tension of the suspension body 13 is directly detected by the tension detection device 51.
  • the configuration of the third embodiment can be applied to the modified example shown in FIG. In that case, the tension detecting device 51 detects the tension of the suspension body 13 at the first end portion 13a.
  • FIG. 9 is a configuration diagram showing a hoisting machine 12 of the elevator device 10 according to the fourth embodiment.
  • the hoisting machine 12 of the fourth embodiment is provided with a plurality of frictional force increasing mechanisms 31.
  • the plurality of frictional force increasing mechanisms 31 are arranged on the radial outer side of the drive sheave 18. Further, the plurality of frictional force increasing mechanisms 31 are arranged at equal intervals with each other in the circumferential direction of the drive sheave 18. In FIG. 9, three frictional force increasing mechanisms 31 are used.
  • Each friction force increasing mechanism 31 presses the suspension body 13 against the drive sheave 18 toward the center of the drive sheave 18. As a result, each friction force increasing mechanism 31 increases the frictional force between the suspension body 13 and the drive sheave 18. Further, each friction force increasing mechanism 31 has a roller holding portion 32, a pressing roller 33, and an annular contact member 34.
  • the pressing roller 33 is rotatably supported by the roller holding portion 32.
  • the roller holding portion 32 generates a force for pressing the pressing roller 33 against the suspension body 13.
  • the contact member 34 is provided on the outer periphery of the pressing roller 33 and is in contact with the suspension body 13.
  • the material of the contact member 34 for example, rubber or resin is used.
  • the overall configuration of the elevator device 10 and the functions of the control device 17 except for the configuration of the hoisting machine 12 shown in FIG. 9 are the same as those of the first, second, and third embodiments.
  • the suspension body 13 is sent out by the frictional force acting between the suspension body 13 and the drive sheave 18. Therefore, if a load larger than the frictional force is applied to the suspension body 13, the suspension body 13 cannot be delivered as intended.
  • the length of the suspension body 13 from the drive sheave 18 to the balance weight suspension vehicle 23 is longer than the length of the suspension body 13 from the drive sheave 18 to the car suspension vehicle 21. Therefore, the unbalanced load of the suspension body 13 acts on the drive sheave 18.
  • the unbalanced load of the suspension body 13 increases as the machine room 11 moves upward. Then, when the unbalanced load of the suspension body 13 becomes larger than the frictional force acting between the suspension body 13 and the drive sheave 18, the suspension body 13 is on the balance weight 15 side regardless of the rotational operation of the drive sheave 18. Will be sent to.
  • the suspension body 13 is excessively unwound from the winding device 16, and after the machine room 11 is pulled up, the suspension body 13 becomes loose, and extra rewinding work of the suspension body 13 is required.
  • the suspension body 13 is pressed against the drive sheave 18 by the plurality of friction force increasing mechanisms 31, and the frictional force between the suspension body 13 and the drive sheave 18 is increased. There is. Therefore, even if the difference between the distance from the drive sheave 18 to the car 14 and the distance from the drive sheave 18 to the balance weight 15 becomes large, it is possible to prevent the suspension body 13 from being unintentionally sent out. ..
  • the pressing force of the frictional force increasing mechanism 31 against the suspension body 13 is the minimum that can hold the suspension body 13 on the drive sheave 18 even when the unbalanced load of the suspension body 13 acting on the drive sheave 18 is maximized. It is preferable to use the limit force. As a result, wear damage to the suspension body 13 and the drive sheave 18 due to the frictional force increasing mechanism 31 can be suppressed.
  • the unbalanced load of the suspension body 13 acting on the drive sheave 18 becomes maximum when the building 1 is completed and the vertical dimension of the hoistway 2 becomes maximum. Therefore, for example, assuming an unbalanced load of the suspension body 13 acting on the drive sheave 18 when the building 1 is completed, the pressing force of each friction force increasing mechanism 31 is increased so that the minimum necessary traction capacity can be secured. You can design it.
  • the number of frictional force increasing mechanisms may be one, two, or four or more.
  • FIG. 10 is a configuration diagram showing a hoisting machine 12 of the elevator device 10 according to the fifth embodiment.
  • the hoisting machine 12 of the fifth embodiment is provided with a frictional force increasing mechanism 41.
  • the frictional force increasing mechanism 41 presses the suspension body 13 against the drive sheave 18 toward the center of the drive sheave 18. As a result, the frictional force increasing mechanism 41 increases the frictional force between the suspension body 13 and the drive sheave 18.
  • the frictional force increasing mechanism 41 has a first roller 42, a second roller 43, a third roller 44, and an endless pressing belt 45.
  • the first roller 42 and the second roller 43 are arranged on the left and right sides of the drive sheave 18.
  • the third roller 44 is arranged directly above the drive sheave 18.
  • the pressing belt 45 is wound around the first roller 42, the second roller 43, and the third roller 44. The portion of the pressing belt 45 between the first roller 42 and the second roller 43 is in contact with the suspension body 13.
  • the pressing belt 45 is pressed against the suspension body 13, the force applied to the suspension body 13 and the drive sheave 18 can be dispersed in the circumferential direction of the drive sheave 18. Therefore, wear damage of the suspension body 13 and the drive sheave 18 can be suppressed.
  • the number of rollers may be two or four or more.
  • FIG. 11 is a configuration diagram showing the elevator device 10 according to the sixth embodiment.
  • the holding device 52 is provided in the machine room 11.
  • the holding device 52 holds the suspension body 13 by sandwiching the suspension body 13 between the two holding members. Further, the holding force of the holding device 52 with respect to the suspension body 13 can be adjusted. Further, the holding device 52 holds the suspension body 13 between the winding device 16 and the car suspension wheel 21.
  • FIG. 12 is a block diagram showing a main part of the elevator device 10 of FIG.
  • the control device 17 has a drive control unit 17a, a torque detection unit 17b, a notification unit 17c, and a holding force control unit 17h as functional blocks.
  • the holding force control unit 17h controls the holding force of the holding device 52 with respect to the suspension body 13. Further, the holding force control unit 17h controls the holding force of the holding device 52 with respect to the suspension body 13 according to the difference between the distance from the drive sheave 18 to the car 14 and the distance from the drive sheave 18 to the balance weight 15. To do.
  • the holding force control unit 17h controls the holding force of the holding device 52 with respect to the suspension body 13 so as to support at least a part of the unbalanced load of the suspension body 13 acting on the drive sheave 18.
  • the configuration and control method of the elevator device 10 other than the holding device 52 and the holding force control unit 17h are the same as those of any one of the first to fifth embodiments.
  • FIG. 13 is a configuration diagram showing a modified example of the elevator device 10 according to the sixth embodiment.
  • This modification is an example in which the holding device 52 is added to the elevator device of FIG.
  • the holding device 52 holds the suspension body 13 between the winding device 16 and the counterweight suspension wheel 23.
  • the holding device 52 may hold the suspension body 13 between the drive sheave 18 and the take-up device 16. Therefore, in the configuration of FIG. 11, the holding device 52 may hold the suspension body 13 between the drive sheave 18 and the car suspension wheel 21. Further, in the configuration of FIG. 13, the holding device 52 may hold the suspension body 13 between the drive sheave 18 and the counterweight suspension wheel 23.
  • FIG. 14 is a configuration diagram showing the elevator device 10 according to the seventh embodiment.
  • the car 14, which is the first elevating body is supported by the support base 7 when the machine room 11 moves upward. Further, when the machine room 11 is moved upward, the balance weight 15 which is the second elevating body is suspended from the machine room 11 via the winch 6.
  • Other configurations are the same as in FIG.
  • the suspension body 13 is supplied between the drive sheave 18 and the take-up device 16 when the machine room 11 moves upward. Therefore, the control device 17 controls the hoisting machine 12 so that the speed of the drive sheave 18 becomes 0 when the machine room 11 moves upward.
  • the holding force control unit 17h controls the holding device 52 so as to hold the suspension body 13 with a preset holding force when the machine room 11 moves upward.
  • the tension of the suspension body 13 becomes high. Then, when the tension of the suspension body 13 exceeds the holding force of the holding device 52, the suspension body 13 is pulled out from the winding device 16. That is, the suspension body 13 is automatically pulled out from the take-up device 16 in a state where an appropriate tension is applied.
  • the suspension body 13 is sent out into the hoistway 2 by driving and controlling the hoisting machine 12 by the control device 17 when the machine room 11 moves upward. Therefore, it is possible to shorten the period of suspension of use of the elevator device 10 due to the upward movement of the machine room 11. As a result, the construction period of the building 1 can be shortened and the construction can be completed at an early stage.
  • FIG. 15 is a configuration diagram showing a modified example of the elevator device 10 according to the seventh embodiment.
  • the balance weight 15 which is the first elevating body is supported by the support base 7 when the machine room 11 moves upward. Further, when the machine room 11 moves upward, the car 14, which is the second elevating body, is suspended from the machine room 11 via the winch 6.
  • Other configurations are the same as in FIG.
  • FIG. 16 is a configuration diagram showing the elevator device 10 according to the eighth embodiment.
  • a tension detecting device 51 similar to that of the third embodiment is provided in the machine room 11.
  • the tension detection device 51 detects the tension of the suspension body 13 at the second end portion 13b.
  • FIG. 17 is a block diagram showing a main part of the elevator device 10 of FIG.
  • the control device 17 has a drive control unit 17a, a torque detection unit 17b, a notification unit 17c, a tension monitoring unit 17g, and a holding force control unit 17h as functional blocks.
  • the tension monitoring unit 17g monitors whether the tension of the suspension body 13 is within the set range based on the signal from the tension detection device 51.
  • the holding force control unit 17h controls the holding force of the holding device 52 so that the tension of the suspension body 13 is within the set range based on the signal from the tension monitoring unit 17g when the machine room 11 moves upward. Control.
  • a set value of the tension of the suspension body 13 is set in the holding force control unit 17h.
  • the holding force control unit 17h controls the holding force of the holding device 52 with respect to the suspension body 13 so that the tension of the suspension body 13 becomes lower than the set value when the machine room 11 moves upward.
  • the set value is set in advance with reference to the tension of the suspension body 13 before the machine room 11 moves upward.
  • the configuration and control method of the elevator device 10 other than the tension detection device 51, the holding device 52, the tension monitoring unit 17g, and the holding force control unit 17h are the same as those in the first embodiment.
  • FIG. 18 is a configuration diagram showing a first modification of the elevator device 10 according to the eighth embodiment.
  • a tension detecting device 51 is provided in the machine room 11.
  • the first end portion 13a of the suspension body 13 is connected to the tension detection device 51.
  • FIG. 19 is a configuration diagram showing a second modification of the elevator device 10 according to the eighth embodiment.
  • a tension detecting device 51 is provided in the machine room 11.
  • the second end portion 13b of the suspension body 13 is connected to the tension detection device 51.
  • FIG. 20 is a configuration diagram showing a third modification of the elevator device 10 according to the eighth embodiment.
  • a tension detecting device 51 is provided in the machine room 11.
  • the first end portion 13a of the suspension body 13 is connected to the tension detection device 51.
  • the tension of the suspension body 13 can be controlled more accurately by these first, second and third modifications.
  • FIG. 21 is a configuration diagram showing a first example of a processing circuit that realizes each function of the control devices 17 of the first to eighth embodiments.
  • the processing circuit 100 of the first example is dedicated hardware.
  • the processing circuit 100 includes, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof. Applicable. Further, each function of the control device 17 may be realized by an individual processing circuit 100. Further, two or more of the plurality of functions of the control device 17 may be realized by the common processing circuit 100.
  • FIG. 22 is a configuration diagram showing a second example of a processing circuit that realizes each function of the control devices 17 of the first to eighth embodiments.
  • the processing circuit 200 of the second example includes a processor 201 and a memory 202.
  • each function of the control device 17 is realized by software, firmware, or a combination of software and firmware.
  • the software and firmware are described as a program and stored in the memory 202.
  • the processor 201 realizes each function by reading and executing the program stored in the memory 202.
  • the program stored in the memory 202 causes the computer to execute the procedure or method of each part described above.
  • the memory 202 is, for example, a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electric Memory), etc.
  • a sexual or volatile semiconductor memory e.g., a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD, etc. also correspond to the memory 202.
  • the processing circuit can realize the functions of the above-mentioned parts by hardware, software, firmware, or a combination thereof.
  • the device for moving the machine room 11 upward is not limited to the crane device.
  • the roping method is not limited to the 2: 1 roping method, and may be, for example, a 1: 1 roping method.
  • the take-up device can be provided in the car or the counterweight.
  • the elevator device may be a dedicated elevator device used only during the construction work period. In this case, after the building is built, the elevator equipment is removed and new elevator equipment is installed in the building.
  • the entire elevator device may be left and used after the construction of the building.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Elevator Control (AREA)

Abstract

Est ici décrit un dispositif d'ascenseur, dans lequel une salle des machines peut être déplacée vers le haut à l'intérieur d'une gaine d'ascenseur. La salle des machines est équipée d'un palan. Une première unité d'élévation/abaissement est suspendue à l'intérieur de la gaine d'ascenseur par une unité de suspension. Une seconde unité d'élévation/abaissement est suspendue à l'intérieur de la gaine d'ascenseur par l'unité de suspension sur le côté opposé à la première unité d'élévation/d'abaissement par rapport à la poulie motrice. Un dispositif d'enroulement enroule l'unité de suspension. Pendant le mouvement ascendant de la salle des machines, un dispositif de commande commande le palan de façon à acheminer l'unité de suspension du dispositif d'enroulement à la gaine d'ascenseur.
PCT/JP2019/049624 2019-12-18 2019-12-18 Dispositif d'ascenseur WO2021124481A1 (fr)

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JP2021565233A JP7161819B2 (ja) 2019-12-18 2019-12-18 エレベータ装置
CN201980102353.3A CN114761344B (zh) 2019-12-18 2019-12-18 电梯装置
DE112019007977.8T DE112019007977T5 (de) 2019-12-18 2019-12-18 Aufzugvorrichtung
PCT/JP2019/049624 WO2021124481A1 (fr) 2019-12-18 2019-12-18 Dispositif d'ascenseur

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PCT/JP2019/049624 WO2021124481A1 (fr) 2019-12-18 2019-12-18 Dispositif d'ascenseur

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JP (1) JP7161819B2 (fr)
CN (1) CN114761344B (fr)
DE (1) DE112019007977T5 (fr)
WO (1) WO2021124481A1 (fr)

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JP7161819B2 (ja) 2022-10-27

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