WO2004058620A1 - Ascenseur et corde de reglage de la vitesse - Google Patents

Ascenseur et corde de reglage de la vitesse Download PDF

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Publication number
WO2004058620A1
WO2004058620A1 PCT/JP2002/013515 JP0213515W WO2004058620A1 WO 2004058620 A1 WO2004058620 A1 WO 2004058620A1 JP 0213515 W JP0213515 W JP 0213515W WO 2004058620 A1 WO2004058620 A1 WO 2004058620A1
Authority
WO
WIPO (PCT)
Prior art keywords
car
governor
speed
rope
governor rope
Prior art date
Application number
PCT/JP2002/013515
Other languages
English (en)
Japanese (ja)
Inventor
Mineo Okada
Kenichi Okamoto
Takuo Kugiya
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
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 Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to PCT/JP2002/013515 priority Critical patent/WO2004058620A1/fr
Priority to KR1020047013159A priority patent/KR100627540B1/ko
Priority to JP2004562850A priority patent/JPWO2004058620A1/ja
Priority to EP02808325A priority patent/EP1577248B1/fr
Priority to CNB028282965A priority patent/CN100352753C/zh
Publication of WO2004058620A1 publication Critical patent/WO2004058620A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors

Definitions

  • the present invention relates to an elevator device and a governor rope. More specifically, the present invention relates to an elevator device including an emergency stop device and a governor, and a governor rope used in the device. Background art
  • various devices such as a governor, an emergency stop device, and a shock absorber are provided in the elevator system to ensure safety.
  • the governor detects when the elevator speed of the car exceeds the specified first overspeed v s or more in the elevator system and shuts off the power of the motor of the hoist.
  • the descent of the car cannot be stopped by the brake of the hoist due to a failure such as a case where a rope connected to the car is cut.
  • the lowering speed of the car is further increased.
  • V t the rotation of the provided the sheave to the speed governor is you forcibly stopped.
  • the sheave rotation stops friction is applied to the movement of the governor rope, and the safety gear connected to a part of the governor port is activated.
  • the governor rope rotates the lever of the emergency stop device due to the tension, thereby pressing the shoe against the guide rail. This stops the lowering of the car.
  • the deceleration by the safety gear is set so that the average deceleration of the car is within 1 G for safety in the car.
  • G denotes the gravitational acceleration, about 9. 8 m / s 2.
  • a buffer is provided below the hoistway in case the car has passed the lowest floor for some reason.
  • the shock absorber has a basket at the bottom of the hoistway. It is intended to reduce the impact in the event of a collision.
  • the shock absorber is set so that the average deceleration of the car is within 1 G, like the safety gear. Also, if the lowering speed of your the car even reached the bottom floor does not reach up to the second overspeed V t, when the safety device is not activated until the lowest floor, the car collides with buffer speed, the fastest, be a second overspeed V t is considered. Assuming this case, the buffer operation distance SB until the car stops by the shock absorber is also set to the same length as the stop distance SA by the emergency stop device.
  • the buffer operation distance S B is secured in this way, the buffer itself becomes very long.
  • the buffer operation distance SB of the shock absorber may exceed 10 m.
  • the overall height of the shock absorber will exceed 2 Om.
  • the elevator apparatus becomes large and the construction cost and the manufacturing cost increase.
  • the top floor or the bottom floor cannot be installed.
  • an elevator system that controls the forcible speed of a car down the hoistway forcibly is considered.
  • this elevator system the maximum speed at which the car collides with the shock absorber can be reduced,
  • the required buffer operation distance SB of the buffer can be shortened.
  • the present invention solves the above-mentioned problems, and improves the elevator with the aim of shortening the shock absorber and reducing the required space in the upper and lower portions of the hoistway while maintaining the necessary shock absorbing operation distance. It proposes an overnight device.
  • the elevator apparatus of the present invention is guided by a guide rail erected on a hoistway, and moves the car up and down the hoistway according to the moving speed of the car.
  • the governor rope is configured by changing its cross-sectional shape, and changes the operating speed of the governor according to the position of the car.
  • FIG. 1 is a schematic diagram for explaining an elevator apparatus according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram for explaining a governor provided in the elevator apparatus according to the embodiment of the present invention.
  • FIG. 3 is a schematic cross-sectional view of the governor in FIG. 2 in the AA ′ direction.
  • FIG. 4 is a schematic diagram for explaining an operation state of the governor in FIG.
  • FIG. 5 is a schematic diagram for explaining the governor rope according to the embodiment of the present invention.
  • FIG. 6 is a schematic diagram for explaining the safety device according to the embodiment of the present invention.
  • FIG. 7 is a graph for explaining the elevator speed of the car in the embodiment of the present invention.
  • FIG. 1 is a conceptual diagram illustrating an elevator apparatus 100 according to an embodiment of the present invention.
  • the elevator apparatus 100 includes a hoistway 2 and a machine room 4.
  • the landings provided on the hoistway 2 are 2 A, 2 A 2 , and 2 A 3 in order from the top 2 a of the hoistway, and 2 B i, 2 A in order from the bottom 2 b. and B 2, 2 B 3.
  • a car 6 and a counterweight 8 are suspended from the hoistway 2 by a rope 10.
  • a rope 10 In the hoistway 2, two guide rails 12 are erected. The two opposing side walls of each car 6 are in contact with each guide rail 12. The car 6 is guided by the guide rails 12 and moves up and down in the hoistway 2.
  • a hoisting machine 14 is provided in the machine room 4.
  • a mouthpiece 10 is wound around the hoisting machine 14.
  • the hoisting machine 14 moves the wound rope 10 by its rotation, and thereby the car 6 fixed to the rope 10 and the counterbalance.
  • the weight 8 moves up and down.
  • the machine room 4 is provided with a control panel 16.
  • the control panel 16 is connected to the hoisting machine 14 and controls the hoisting machine 14 electrically.
  • a governor 22 is provided in the machine room 4.
  • a tensioner 24 is provided on the floor of the hoistway 2.
  • An endless governor rope 26 having a loop shape is wound around the governor 22 and the tensioner 24. In other words, the governor opening 26 is stretched over the governor 22 and the upholstery 24 to apply tension.
  • an emergency stop device 28 is provided below the cage 6, and the emergency stop device 28 is provided.
  • a buffer 30 is provided on the floor of the hoistway 2 below the car 6.
  • FIG. 2 is a schematic diagram for explaining the governor 22 in the embodiment of the present invention
  • FIG. 3 is a schematic cross-sectional view of the governor 22 of FIG. 2 in the A_A ′ direction.
  • FIG. 4 is a schematic diagram for explaining a state when the governor 22 stops rotating, and is a diagram corresponding to FIG. In FIGS. 2 and 4, the see-through portion is represented by a dotted line.
  • the governor 22 is configured such that a sheave 32 is rotatably supported by a sheave base 36 by a sheave shaft 34 provided at the center thereof. ing.
  • a pair of flyweights 38a and 38b are provided on the sides of the sheave 32.
  • the fly weights 38 a and 38 b are connected to each other by a link 42. Further, an operating claw 46 is provided on one fly weight 38a.
  • the sheave machine base 36 is provided with a car stop switch 48, and the car stop switch 48 is provided with a switch lever 50.
  • the switch lever 50 is arranged at a position operated by the operating claw 46.
  • One end of the balance panel 52 is fixed to the end of the flyweight 38a opposite to the position where the operating claw 46 is provided, and the other end of the balance panel 52 is a sheave 3 Fixed to 2.
  • a latch 54 is provided near the fixed portion of the balance spring 52 of the fly weight 38a.
  • the sheave machine base 36 is provided with a ratchet 56 for engaging with the latch portion 54, as a matter of fact.
  • the flyweights 38a and 38b receive centrifugal force outward due to the rotation.
  • the balance panel 52 is installed such that its elastic force acts in a direction opposing the centrifugal force received by the fly weight 38a.
  • FIG. 5 is a schematic diagram for explaining the governor rope 26.
  • FIG. 5 (a) is a state viewed from the front
  • FIG. 5 (b) and FIG. FIG. 5B is a cross-sectional view taken along a line BB ′ and a line C-C ′ in FIG.
  • the governor rope 26 includes a small-diameter region 62 and a large-diameter region 64 where the rope diameter is small.
  • the small-diameter region 62 has a core member 66 in the center, and a total of eight strands 68 arranged around the core member 66, which are twisted together.
  • the core member 66 is formed of fibers such as hemp, and is impregnated with oil (grease) or the like to prevent rust of the rope.
  • the strand 68 is formed by twisting thin steel wires called strands.
  • the large-diameter region 64 is a region directly connected to the small-diameter region 62.
  • the large-diameter region 64 is configured by arranging the strands 68 around the small-diameter region 62, further around the periphery thereof, and further in two layers.
  • the governor rope 26 is formed in an endless shape connected to the ends in a loop shape. The governor rope 26 moves in synchronization with the elevation of the car 6.
  • the sheave 32 of the governor 22 has a large diameter of the governor rope 26.
  • the small diameter area 62 is wound.
  • FIG. 6 is a schematic diagram for explaining the emergency stop device 28.
  • the emergency stop device 28 is composed of a shaft support 72 and a lever 74 rotatably arranged on it. And a brake 74 provided at the end of the lever 74 so as to face the guide rail 12. A part of the lever 74 is connected to one position of the governor rope 26, and, in essence, rotates in conjunction with the movement of the governor rope 26.
  • the hoisting machine 14 is controlled by a control panel 16. When a current flows through the hoisting machine 14, the hoisting machine 14 starts rotating, whereby the rope 10 moves and the car 6 and the counterweight 8 move up and down in the hoistway 2. I do.
  • FIG. 7 is a graph showing the elevating speed of the car 6. As shown in Fig. 7, when normal operation is performed and there is no stop on the middle floor of car 6, car 6 is located at the A point near the third landing 2A3 from above, and Controlled to start decelerating at point B near the third landing 2B3 from the bottom, and stop when the bottom of car 6 reaches the landing on the top floor or landing 2 on the bottom floor. You.
  • the governor rope 26 is tensioned between the tensioner 34 and the governor 22 and moves in synchronization with the elevation of the car 6.
  • the governor 22 starts rotating with the movement of the governor rope 26.
  • the governor rope 26 is attached to the sheave 32.
  • the large-diameter area 64 is wound.
  • the flyweights 38a and 38b receive centrifugal force proportional to the angular velocity of the sheave 32.
  • the vertical speed of car 6 is the rated speed V.
  • the elastic force is adjusted so that the elastic force of the balance panel 52 exceeds the centrifugal force, the flyweights 38a and 38b are connected to the sheave 3 It is almost fixed to 2.
  • V is the elevating speed of the car 6, that is, the moving speed of the governor rope 26
  • R is the distance from the center of the sheave 32 to the center of the governor rope 26. Indicates the distance.
  • the angular speed of the sheave 32 when the governor 22 turns off the power of the hoisting machine 14 is a fixed value adjusted and determined by the balance spring 52 of the governor 22, where c s It is.
  • the car 6 when the car 6 is below the governor rope diameter variation ⁇ C, that is, when the small diameter region 62 is wound around the sheave 3.2 , the car 6 corresponding to the angular velocity c s
  • the elevator speed is V sl and the car 6 is above the governor rope diameter variation point C, that is, the angular velocity c s when the large diameter region 64 is wound around the sheave 32
  • the following equation (2) can be obtained from the equation (1).
  • the vertical speed V sl of the car 6 when the small diameter region 62 is wound around the sheave 32 can be expressed by the following equation (3).
  • V sl V s2 (R / R 2 ) ⁇ ⁇ ⁇ ⁇ ⁇ (3).
  • the vertical movement speed Vtl of the car 6 when the small-diameter region 62 is wound around the sheave 32 can be expressed by the following equation (5).
  • V tl V t2 (R no R 2 ) (5)
  • V sl and V tl when the hoist is wound on the small diameter region 62 are V V when the large diameter region 64 is wound.
  • V t2 it can be seen that the smaller than.
  • the hoisting machine by the governor 22 is at a stage where the elevator speed of the car 6 is lower than when it is above. And the operation of the emergency stop device 28 by the governor 22 is performed.
  • the brakes or the emergency stop device 28 of the hoisting machine 14 can be operated relatively early, and the car 6 can be moved to the shock absorber 30. Collision can be suppressed. Also, even when the car 6 reaches the lowest floor, the lowering speed of the car 6 does not reach the speed at which the safety gear operates, and even if the safety gear 28 does not operate to the lowest floor, The speed at which 6 collides with the shock absorber is the fastest, Vtl .
  • the mouth diameter fluctuation governor rope diameter fluctuation point C is determined as follows. The height difference between the position of the car 6 when the bottom of the car 6 reaches the governor opening diameter change point C and the position of the car 6 when the car 6 collides with the shock absorber 28. If L is set, L is set as in the following equation (7).
  • G is the deceleration by the safety gear 28, which is the same value as the gravitational acceleration, about 9.8 m / s 2 .
  • the emergency stop device 28 performs the braking operation. Also, the car 6 can reduce its speed to Vtl before colliding with the shock absorber 30.
  • buffer 30 is not corresponding to the velocity V t2, can be made to correspond to a lower speed V tl than V t2, Therefore, reducing the buffering operation distance SB of the shock absorber 30 Can be.
  • the conventional elevator device In particular, the buffer operation distance SB of the buffer 30 can be reduced without adding an electric control mechanism. Therefore, the buffer 30 can be shortened, and the space required for installing the buffer 30 in the lower 2b of the elevator apparatus can be reduced. In addition, since the buffering operation distance SB can be shortened, the space 2a above the counterweight 8 ascending can be reduced. Therefore, the size of the elevator apparatus can be reduced. In addition, below the hoistway 2, since the emergency stop device 28 can be operated at a relatively low speed, even if the shock-absorbing distance SB of the shock absorber 30 is short, the failure of the hoisting machine 22 In case of failure such as breakage of ropes and ropes, it is possible to respond appropriately.
  • the shape of the governor 22 is not limited to that described in the embodiment.
  • the shape of the safety device 28 is not limited to the shape described in the embodiment as long as it is a type that operates in conjunction with the governor rope.
  • the deceleration by the safety gear 28 and the shock absorber 30 is set to 1 G.
  • the present invention is not limited to this as long as the safety in the car 6 can be ensured. It is not limited to.
  • the small-diameter region 62 is formed by twisting a total of eight strands 68 into one layer, and the large-diameter region is constituted by a total of three strands 68 in three layers It was configured according to.
  • the governor rope is not limited to such. Considering the required strength, the width of the part where the sheave 32 of the governor 22 passes through the mouth, or the installation space for the shock absorber, etc. The difference in diameter from the large diameter region 64 may be provided.
  • a portion below the governor rope diameter variation point C in this embodiment corresponds to the vicinity of the terminal end.
  • the operating speed of the governor refers to the speed of the car 6 when the governor turns off the power of the hoist or activates the emergency stop device. This means, for example, V sl , V s 2 , or V tl , V t 2 in this embodiment.
  • the governor rope is configured by changing its cross-sectional shape, and changes the operating speed of the governor according to the position of the car. As a result, it is possible to stop the raising and lowering of the car or to adjust the raising and lowering speed of the car when activating the safety gear if necessary. Therefore, the shock absorbing operation distance of the shock absorber can be shortened, and the space required above and below the elevator device can be reduced. Therefore, the present invention is useful as an elevator device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

L'invention concerne un ascenseur (100) comprenant un rail de guidage (12) placé dans un trajet élévation/abaissement (2) servant à élever/abaisser une cage (6) dans le trajet d'élévation/abaissement (2), un dispositif de réglage de la vitesse (22), une corde de réglage de la vitesse (26) et un dispositif d'arrêt d'urgence (28). Le dispositif de réglage de la vitesse (26) stoppe l'élévation/abaissement de la cage (6) selon la vitesse de déplacement de la cage (6). En outre, le dispositif d'arrêt d'urgence (26) se trouve dans la cage (6) et est relié à une position de la corde de réglage de la vitesse (26) de manière à stopper l'élévation/abaissement de la cage (6) en fonction de l'actionnement de la corde de réglage de la vitesse (26). La corde de réglage de la vitesse (26) présente une forme sans fin et est enroulée sur le dispositif de réglage de la vitesse (22). Enfin, en changeant la vue en section transversale de la corde de réglage de la vitesse (26), la vitesse d'actionnement du dispositif de réglage de la vitesse (22) est modifiée en fonction de la position de la cage (6).
PCT/JP2002/013515 2002-12-25 2002-12-25 Ascenseur et corde de reglage de la vitesse WO2004058620A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/JP2002/013515 WO2004058620A1 (fr) 2002-12-25 2002-12-25 Ascenseur et corde de reglage de la vitesse
KR1020047013159A KR100627540B1 (ko) 2002-12-25 2002-12-25 엘리베이터 장치
JP2004562850A JPWO2004058620A1 (ja) 2002-12-25 2002-12-25 エレベータ装置及び調速機ロープ
EP02808325A EP1577248B1 (fr) 2002-12-25 2002-12-25 Ascenseur et corde de reglage de la vitesse
CNB028282965A CN100352753C (zh) 2002-12-25 2002-12-25 电梯装置及使用在该电梯装置中的调速机绳索

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/013515 WO2004058620A1 (fr) 2002-12-25 2002-12-25 Ascenseur et corde de reglage de la vitesse

Publications (1)

Publication Number Publication Date
WO2004058620A1 true WO2004058620A1 (fr) 2004-07-15

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ID=32676944

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/013515 WO2004058620A1 (fr) 2002-12-25 2002-12-25 Ascenseur et corde de reglage de la vitesse

Country Status (5)

Country Link
EP (1) EP1577248B1 (fr)
JP (1) JPWO2004058620A1 (fr)
KR (1) KR100627540B1 (fr)
CN (1) CN100352753C (fr)
WO (1) WO2004058620A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017100865A (ja) * 2015-12-03 2017-06-08 東芝エレベータ株式会社 ガバナ装置及びこれを備えたエレベータ装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4842112B2 (ja) * 2006-12-06 2011-12-21 株式会社日立製作所 エレベーターの調速機ロープ振れ止め装置
US9033111B2 (en) 2009-07-20 2015-05-19 Otis Elevator Company Elevator governor system
KR101955788B1 (ko) * 2017-02-22 2019-03-08 현대엘리베이터주식회사 다단 가변속 엘리베이터

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH0867447A (ja) * 1994-08-30 1996-03-12 Mitsubishi Denki Bill Techno Service Kk エレベータの調速機
JP2727876B2 (ja) * 1992-06-18 1998-03-18 三菱電機株式会社 エレベータ用調速機
JPH11124284A (ja) * 1997-10-21 1999-05-11 Toshiba Fa Syst Eng Corp ピット据付形調速機
JP2001354372A (ja) * 2000-06-14 2001-12-25 Mitsubishi Electric Corp エレベーター装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI95021C (fi) * 1993-06-08 1995-12-11 Kone Oy Menetelmä ja laitteisto hissin tarrauslaitteen laukaisemiseksi

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2727876B2 (ja) * 1992-06-18 1998-03-18 三菱電機株式会社 エレベータ用調速機
JPH0867447A (ja) * 1994-08-30 1996-03-12 Mitsubishi Denki Bill Techno Service Kk エレベータの調速機
JPH11124284A (ja) * 1997-10-21 1999-05-11 Toshiba Fa Syst Eng Corp ピット据付形調速機
JP2001354372A (ja) * 2000-06-14 2001-12-25 Mitsubishi Electric Corp エレベーター装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1577248A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017100865A (ja) * 2015-12-03 2017-06-08 東芝エレベータ株式会社 ガバナ装置及びこれを備えたエレベータ装置

Also Published As

Publication number Publication date
CN1620400A (zh) 2005-05-25
CN100352753C (zh) 2007-12-05
EP1577248A4 (fr) 2011-06-01
JPWO2004058620A1 (ja) 2006-04-27
EP1577248A1 (fr) 2005-09-21
EP1577248B1 (fr) 2013-03-06
KR20050002832A (ko) 2005-01-10
KR100627540B1 (ko) 2006-09-21

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