EP1760030B1 - Aufzug - Google Patents

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Publication number
EP1760030B1
EP1760030B1 EP04746837A EP04746837A EP1760030B1 EP 1760030 B1 EP1760030 B1 EP 1760030B1 EP 04746837 A EP04746837 A EP 04746837A EP 04746837 A EP04746837 A EP 04746837A EP 1760030 B1 EP1760030 B1 EP 1760030B1
Authority
EP
European Patent Office
Prior art keywords
car
torque
weight
value
drive
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP04746837A
Other languages
English (en)
French (fr)
Japanese (ja)
Other versions
EP1760030A1 (de
EP1760030A4 (de
Inventor
Masami Yoshikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1760030A1 publication Critical patent/EP1760030A1/de
Publication of EP1760030A4 publication Critical patent/EP1760030A4/de
Application granted granted Critical
Publication of EP1760030B1 publication Critical patent/EP1760030B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B66B11/0484—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with a clutch or a coupling system between several motors, e.g. switching different speeds, progressive starting, torque limitation, flywheel
    • 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
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave

Definitions

  • the present invention relates to a rope type elevator apparatus in which an elevator car and a counterweight are raised and lowered by drive of a hoisting machine.
  • JP 05-38182 A discloses an elevator apparatus in which a sheave for suspending an elevator car and a counterweight is driven by a plurality of drive systems in order to achieve an increase in elevator capacity.
  • the allocation of output power among the respective drive systems is determined based on the required torque.
  • the weight of the counterweight is set to be the same as the sum of 1/2 of the car's maximum loading weight (weight at full passenger capacity) and the car's own weight. That is, the car side and the counterweight side are in balance with each other when the number of passengers on board the car is at 1/2 of the full passenger capacity.
  • the present invention has been made with a view toward solving the above-mentioned problems, and it is therefore an object of the present invention to provide an elevator apparatus capable of reducing the amount of energy consumption.
  • An elevator apparatus includes: a drive device having a drive device main body and a drive sheave rotated by the drive device main body; a main rope wound around the drive sheave; a car suspended from one end portion of the main rope; a counterweight suspended from the other end portion of the main rope and being in balance with the car side when a value of a weight load in the car is smaller than 1/2 of a maximum loading weight of the car; a torque assist device for imparting an auxiliary torque to the drive sheave; a weighing device for measuring the value of the weight load in the car; and an assist control device for controlling the torque assist device so that the torque assist device imparts the auxiliary torque to the drive sheave when the value of the weight load determined based on information from the weighing device becomes larger than a predetermined value.
  • Fig. 1 is a front view showing an elevator apparatus according to Embodiment 1 of the present invention.
  • a hoisting machine 2 as a drive device is provided in an upper portion of a hoistway 1.
  • the hoisting machine 2 has a drive device main body 3 including a motor, and a drive sheave 4 provided to the drive device main body 3 and rotated through the drive of the drive device main body 3. Further, a deflector sheave 5 is provided near the hoisting machine 2.
  • a plurality of main ropes 6 are wound around the drive sheave 4 and the deflector sheave 5.
  • a car 7 is connected to one end portion of each main rope 6, and a counterweight 8 is connected to the other end portion of each main rope 6.
  • the car 7 and the counterweight 8 are suspended within the hoistway 1 by the respective main ropes 6. Further, the car 7 and the counterweight 8 are raised and lowered within the hoistway 1 as the drive sheave 4 rotates.
  • a weighing device 9 for measuring the value of the weight load (for example, the weight of a heavy load such as a passenger or luggage) inside the car 7. It should be noted that the weighing device used may be one which measures the weight load in the car 7 by obtaining the tension in the main rope 6.
  • the weight of the counterweight 8 is smaller than the sum of 1/2 of the weight of the maximum loading weight of the car 7 (the weight at the full passenger capacity of the car) and the self weight of the car 7. That is, the car 7 side and the counterweight 8 side are in balance with each other when the value of the weight load in the car 7 is equal to a reference weight that is smaller than 1/2 of the maximum loading weight of the car 7. Accordingly, when the value of the weight load in the car 7 is equal to the reference weight, the output torque of the hoisting machine 2 becomes minimum (the lower limit value).
  • the hoisting machine 2 is set such that its output torque becomes maximum (the upper limit value) when the difference in weight between the car 7 side and the counterweight 8 side becomes equal to the reference weight. That is, the hoisting machine 2 is set such that its output torque becomes maximum when there is no weight load in the car 7 and when the weight load in the car 7 is equal to a weight (predetermined value) that is twice the reference weight. Accordingly, the hoistingmachine 2 is capable of raising and lowering the car 7 and the counterweight 8 individually within the range in which the difference in weight between the car 7 side and the counterweight 8 side is not larger than the reference weight.
  • the passenger capacity of the car 7 is 10 people.
  • the weight of the counterweight 8 is equal to the sum of the self weight of the car 7 and the combined weight of two people. That is, when the number of passengers on board the car 7 is two, which is less than 1/2 (5 people) of the passenger capacity (10 people) of the car 7, the car 7 side and the counterweight 8 side are in balance with each other. That is, the combined weight of two passengers is set as the reference weight.
  • the hoisting machine 2 is set such that its output torque becomes maximum when the car 7 is empty and when four passengers are on board the car 7. That is, the hoisting machine 2 is set such that its output capacity becomes maximum when the difference in weight between the car 7 side and the counterweight 8 side is equal to the combined weight of two passengers. Accordingly, the hoisting machine 2 is capable of raising and lowering the car 7 and the counterweight 8 individually when the difference in weight between the car 7 side and the counterweight 8 side is not larger than the combined weight of two passengers.
  • a torque assist device 10 for imparting to the drive sheave 4 auxiliary torque for supplementing a shortage in the output torque of the hoisting machine 2 by adding a rotary force to the drive sheave 4.
  • the torque assist device 10 is provided separately from the hoisting machine 2. Further, the torque assist device 10 is arranged below the hoisting machine 2. Further, the torque assist device 10 has an assist device main body 11 including a motor, and a contact roller 12 that is in contact with the outer peripheral portion of the drive sheave 4 and is rotated through the drive of the assist device main body 11.
  • the outer peripheral portion of the contact roller 12 is provided with a high-friction member for preventing the slippage of the contact roller 12 with respect to the drive sheave 4.
  • the drive sheave 4 is rotated through the rotation of the contact roller 12. As a result, the rotation torque of the assist device main body 11 is transmitted to the drive sheave 12 as the auxiliary torque via the contact roller 12.
  • an elevator control device 13 for controlling the operation of the elevator, and an assist control device 14 for controlling the drive of the torque assist device 10.
  • the hoisting machine 2, the weighing device 9, and the assist control device 14 are electrically connected to the elevator control device 13.
  • the elevator control device 13 controls the hoisting machine 2 based on information from the weighing device 9.
  • the assist control device 14 is electrically connected to the torque assist device 10.
  • the information from the weighing device 9 is input to the assist control device 14 via the elevator control device 13.
  • the assist control device 14 controls the drive of the torque assist device 10 based on the information from the weighing device 9.
  • the assist control device 14 controls the torque assist device 10 so as to impart auxiliary torque to the drive sheave 4 when the value of the weight load determined based on the information from the weighing device 9 becomes larger than a weight (predetermined value) that is twice the reference weight, and to stop the output of the auxiliary torque when the value of the weight load becomes equal to or smaller than the predetermined value . Further, the torque assist device 14 controls the drive of the torque assist device 10 so as to adjust the value of the auxiliary torque imparted to the drive sheave 4 in accordance with the value of the weight load in the car 7.
  • the value of the torque required for raising and lowering the car 7 and the counterweight 8 falls within the permissible range of the output torque of the hoisting machine 2, so the car 7 and the counterweight 8 are raised and lowered as the drive sheave 4 is rotated by the output torque of only the hoisting machine 2.
  • the value of the requisite torque exceeds the permissible range of the output torque of the hoisting machine 2, so the auxiliary torque due to the torque assist device 10 is imparted to the drive sheave 4 in addition to the output torque of the hoisting machine 2.
  • the drive sheave 4 is rotated by means of the combined torque of the output torque of the hoisting machine 2 and the auxiliary torque of the torque assist device 10, thus raising and lowering the car 7 and the counterweight 8.
  • the value of the auxiliary torque imparted to the drive sheave 4 is adjusted according to the difference in weight between the car 7 side and the counterweight 8 side through the control of the assist control device 14.
  • the output torque of the hoisting machine 2 becomes short when the number of passengers inside the car 7 reaches 5 or more, so the auxiliary torque from the torque assist device 10 is added through the control of the assist control device 14. Further, the value of the auxiliary torque is adjusted by the assist control device 14 according to the value of the weight load determined based on the information from the weighing device 9.
  • the information from the weighing device 9 is constantly input to the elevator control device 13 and the assist control device 14. Accordingly, the value of the weight load in the car 7 is determined by the elevator control device 13 and the assist control device 14. The value of the output torque of the hoisting machine 2 is adjusted according to the value of the weight load in the car 7 through the control of the elevator control device 13.
  • the drive of the torque assist device 10 is stopped through the control of the assist control device 14, so the imparting of the auxiliary torque to the drive sheave 4 is stopped.
  • the drive sheave 4 is thus rotated solely by the output torque of the hoisting machine 2, and the car 7 and the counterweight 8 are raised and lowered within the hoistway 1.
  • the torque assist device 1 When the value of the weight load in the car 7 becomes larger than twice of the reference weight, that is, when the number of passengers inside the car 7 becomes 5 or more, the torque assist device 1 is driven through the control of the assist control device 14, and the auxiliary torque is imparted to the drive sheave 4 together with the output torque of the hoisting machine 2.
  • the value of the auxiliary torque at this time is adjusted by the assist control device 14 according to the value of the weight load in the car 7.
  • the drive sheave 4 is thus rotated, and the car 7 and the counterweight 8 are raised and lowered within the hoistway 1.
  • the balance between the car 7 side and the counterweight 8 side is achieved when the value of the weight load in the car 7 is equal to the reference weight that is smaller than 1/2 of the maximum loading weight of the car 7; when the value of the weight load in the car 7 becomes larger than twice of the reference weight, the auxiliary torque for supplementing a shortage in the output torque of the hoisting machine 2 is imparted to the drive sheave 4 by the torque assist device 10. Accordingly, the value of the maximum output torque of the hoisting machine 2 can be reduced to thereby achieve miniaturization of the hoisting machine 2.
  • the counterweight 8 can be miniaturized, thereby achieving a reduction in the installation space of the elevator apparatus.
  • the difference in weight between the car 7 side and the counterweight 8 side is the same between when the value of the weight load in the car 7 is equal to a weight (predetermined value) that is twice the reference weight and when there is no weight load in the car 7, so it is possible to make the most of the capacity of the hoisting machine 2 to thereby prevent an increase in the capacity of the torque assist device 10.
  • the value of the auxiliary torque is adjusted according to the value of the weight load in the car 7 by the assist control device 14 performing control on the torque assist device 10, thereby making it possible to prevent the amount of energy consumed by the torque assist device 10 from increasing more than necessary.
  • the torque assist device 10 is provided separately from the hoisting machine 2, whereby the handling of the torque assist device 14 and hoisting machine 2 is facilitated to thereby facilitate the maintenance and inspection work.
  • the torque assist device 10 has the control roller 12 that contacts the drive sheave 4 to transmit the auxiliary torque to the drive sheave 4, whereby the auxiliary torque can be imparted to the drive sheave 4 by means of the simple construction.
  • the elevator control device 13 and the assist control device 14 are provided separately from each other within the hoistway 1, the assist control device 14 may be mounted to the elevator control device 13.
  • the auxiliary torque from the torque assist device 10 can be transmitted to the drive sheave 4 through the contact of the contact roller 12 with the drive sheave 4, the auxiliary torque from the torque assist device 10 may be transmitted to the drive sheave 4 by means of a power transmission belt.
  • the hoisting machine 2 is provided with a pulley that is rotated integrally with the drive sheave 4
  • the torque assist device 10 is provided with a pulley that is rotated by the assist device main body 11.
  • the power transmission belt is wound between the respective pulleys.
  • the torque assist device 10 and the hoisting machine 2 are provided separately from each other, it is also possible to coaxially connect the rotary shaft of the torque assist device 10 to the rotary shaft of the drive sheave 4. This makes it possible to dispense with the contact roller 12 to thereby reduce the number of parts.
  • torque assist device 10 may be incorporated into the drive device main body 3 to be integrated therewith. This makes it possible to reduce the installation spaces of the hoisting machine 2 and torque assist device 10.
  • the present invention is applied to the elevator apparatus of the 1:1 roping system in which the one end portion of the main rope 6 is connected to the car 7 and the other end portion of the main rope 6 is connected to the counterweight 8
  • the present invention may be applied to an elevator apparatus of a 2: 1 roping system in which a car suspension pulley and a counterweight suspension pulley, on each of which the main rope is wound up, are provided to the car 7 and the counterweight 8, respectively.
  • the one and the other end portions of the main rope are connected to an upper portion of the hoistway 1.
  • the main rope 6 is wound around the car suspension pulley, the drive sheave 4, and the counterweight suspension pulley in the stated order from the one end portion to the other end portion thereof.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Elevator Control (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Claims (6)

  1. Aufzugsvorrichtung mit:
    einer Antriebseinrichtung (2) mit einem Antriebseinrichtungshauptkörper (3) und einer Antriebsseilrolle (4), die von dem Antriebseinrichtungshauptkörper (3) gedreht wird;
    einem Hauptseil (6), das um die Antriebsseilrolle (4) herumgewunden ist;
    einer Kabine (7), die an dem Hauptseil (6) hängt;
    dadurch gekennzeichnet, dass sie ferner aufweist
    ein Gegengewicht (8), das an dem Hauptseil (6) hängt und im Gleichgewicht mit der Seite der Kabine (7) ist, wenn ein Wert einer Gewichtslast in der Kabine (7) kleiner ist als die Hälfte des Maximalladegewichts der Kabine (7);
    eine Drehmomenthilfseinrichtung (10) zum Anbringen eines Hilfsdrehmoments auf die Antriebsseilrolle (4);
    eine Wiegeeinrichtung (9) zum Messen eines Werts der Gewichtslast in der Kabine (7); und
    eine Hilfsregeleinrichtung (14) zum Regeln der Drehmomenthilfseinrichtung (10), so dass die Regelung der Drehmomenthilfseinrichtung (10) das Hilrsdrehmoment an die Antriebsseilrolle (4) anbringt, wenn der Wert der Gewichtslast, der aufgrund von Informationen von der Wiegeeinrichtung (9) bestimmt wird, größer wird als ein vorher festgelegter Wert.
  2. Aufzugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass ein Unterschied im Gewicht zwischen der Seite der Kabine (7) und der Seite des Gegenwichts (8) der gleiche ist, wenn der Wert der Gewichtslast der vorher festgelegte Wert ist und wenn es keine Gewichtslast gibt.
  3. Aufzugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass ein Wert des Hilfsdrehmoments aufgrund des Werts der Gewichtslast eingestellt wird.
  4. Aufzugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Drehmomenthilfseinrichtung (10) separat von der Antriebseinrichtung (2) vorgesehen ist.
  5. Aufzugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Drehmomenthilfseinrichtung (10) eine Kontaktrolle (12) aufweist, welche die Antriebsseilrolle (4) kontaktiert, um das Hilisdrehmoment auf die Antriebsseilrolle (4) zu übertragen.
  6. Aufzugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Drehmomenthilfseinrichtung (10) in den Antriebseinrichtungshauptkörper (3) eingebaut ist.
EP04746837A 2004-06-25 2004-06-25 Aufzug Expired - Lifetime EP1760030B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/009368 WO2006001075A1 (ja) 2004-06-25 2004-06-25 エレベータ装置

Publications (3)

Publication Number Publication Date
EP1760030A1 EP1760030A1 (de) 2007-03-07
EP1760030A4 EP1760030A4 (de) 2010-02-24
EP1760030B1 true EP1760030B1 (de) 2011-10-05

Family

ID=35781627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04746837A Expired - Lifetime EP1760030B1 (de) 2004-06-25 2004-06-25 Aufzug

Country Status (5)

Country Link
EP (1) EP1760030B1 (de)
JP (1) JP4932478B2 (de)
KR (1) KR100962816B1 (de)
CN (1) CN1832897A (de)
WO (1) WO2006001075A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5303266B2 (ja) * 2008-12-26 2013-10-02 株式会社日立製作所 エレベーター用巻上機
JP5943643B2 (ja) * 2012-02-27 2016-07-05 三菱電機株式会社 巻胴式エレベータの制御装置およびその方法
CN103993765A (zh) * 2014-04-22 2014-08-20 柴凤 一种塔式智能立体车库升降装置
CN111908308B (zh) * 2020-08-07 2022-02-01 日立电梯（中国）有限公司 一种升降设备辅助装置
CN111891886B (zh) * 2020-08-07 2022-02-01 日立电梯（中国）有限公司 一种升降设备辅助装置、升降设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5651776U (de) * 1979-09-28 1981-05-08
JPS5651776A (en) * 1979-10-03 1981-05-09 Tokyo Shibaura Electric Co Display unit
JPS58130874A (ja) * 1982-01-25 1983-08-04 三菱電機株式会社 エレベ−タの駆動装置
JPS61127588A (ja) * 1984-11-28 1986-06-14 株式会社日立製作所 エレベ−タ−の駆動装置
JP2622398B2 (ja) * 1988-04-23 1997-06-18 株式会社日立製作所 エレベーター制御装置
JPH02300085A (ja) * 1989-05-12 1990-12-12 Koyo Autom Mach Co Ltd 昇降機における駆動装置
JP2004137003A (ja) * 2002-10-16 2004-05-13 Mitsubishi Electric Corp エレベーター装置
JP4127027B2 (ja) * 2002-11-20 2008-07-30 株式会社日立製作所 エレベータ

Also Published As

Publication number Publication date
CN1832897A (zh) 2006-09-13
JPWO2006001075A1 (ja) 2008-04-17
EP1760030A1 (de) 2007-03-07
WO2006001075A1 (ja) 2006-01-05
KR20080031468A (ko) 2008-04-08
KR100962816B1 (ko) 2010-06-10
JP4932478B2 (ja) 2012-05-16
EP1760030A4 (de) 2010-02-24

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