WO2013190869A1 - エレベータ装置 - Google Patents
エレベータ装置 Download PDFInfo
- Publication number
- WO2013190869A1 WO2013190869A1 PCT/JP2013/056623 JP2013056623W WO2013190869A1 WO 2013190869 A1 WO2013190869 A1 WO 2013190869A1 JP 2013056623 W JP2013056623 W JP 2013056623W WO 2013190869 A1 WO2013190869 A1 WO 2013190869A1
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- WIPO (PCT)
- Prior art keywords
- car
- lever
- governor
- grip
- suspension means
- Prior art date
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- 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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
Definitions
- This invention relates to an elevator apparatus in which a car is emergency stopped by an emergency stop device when the suspension means is broken, for example.
- the first overspeed Vos (operating speed of the operation stop switch) is set to about 1.3 times the rated speed Vo
- the second overspeed Vtr (emergency stop operating speed) is set. It is set to about 1.4 times the rated speed Vo.
- the first overspeed Vos operating speed of the operation stop switch
- the second overspeed Vtr discharge stop operating speed
- the car speed may reach the bottom of the hoistway before it rises to the first overspeed Vos or the second overspeed Vtr.
- the car is decelerated and stopped by the shock absorber.
- the buffer requires a longer buffer stroke as the speed to be decelerated is higher, and the length of the buffer is determined according to the first overspeed Vos and the second overspeed Vtr.
- the shock absorber becomes longer, the pit depth of the hoistway increases.
- a car position switch is provided near the terminal floor, and when the car position switch is operated, an abnormality is detected at the terminal overspeed Vts lower than the rated speed, and the power supply to the hoisting machine is shut off.
- a method of operating a hoisting machine brake has been proposed.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an elevator apparatus capable of saving a hoistway with a simple configuration.
- An elevator apparatus includes a car that is raised and lowered in a hoistway, suspension means for suspending a car, an emergency stop device mounted on the car, an operating lever that operates the emergency stop device, and a laying in the hoistway And a speed governor mechanism having a speed governor rope connected to the operating lever and a speed governor sheave around which the speed governor rope is wound, and the acceleration of the car when the suspension means is broken
- a speed governor mechanism having a speed governor rope connected to the operating lever and a speed governor sheave around which the speed governor rope is wound, and the acceleration of the car when the suspension means is broken
- the inertial mass of the governor mechanism is changed so that the acceleration of the operating lever becomes small.
- the inertial mass of the governor mechanism is changed, and the acceleration of the operating lever is reduced with respect to the acceleration of the car.
- the stroke of the car shock absorber can be shortened, and the space of the hoistway can be saved with a simple configuration.
- FIG. 8 It is a block diagram which shows typically the principal part of the elevator apparatus by Embodiment 2 of this invention. It is a top view which shows the cage
- FIG. 1 is a block diagram showing an elevator apparatus according to Embodiment 1 of the present invention.
- a machine room 2 is provided in the upper part of the hoistway 1.
- a hoisting machine (driving device) 3 In the machine room 2, a hoisting machine (driving device) 3, a deflecting wheel 4, and a control device 5 are installed.
- the hoisting machine 3 includes a drive sheave 6, a hoisting machine motor that rotates the driving sheave 6, and a hoisting machine brake (electromagnetic brake) 7 that brakes the rotation of the driving sheave 6.
- the hoisting machine brake 7 includes a brake wheel (drum or disk) that is coaxially coupled to the drive sheave 6, a brake shoe that contacts and separates from the brake wheel, and a brake spring that presses the brake shoe against the brake wheel and applies a braking force. And an electromagnetic magnet for releasing the braking force by releasing the brake shoe from the brake wheel against the brake spring.
- Suspension means 8 is wound around the drive sheave 6 and the deflecting wheel 4. As the suspension means 8, a plurality of ropes or a plurality of belts are used. A car 9 is connected to the first end of the suspension means 8. A counterweight 10 is connected to the second end of the suspension means 8.
- the car 9 and the counterweight 10 are suspended in the hoistway 1 by the suspension means 8, and are raised and lowered in the hoistway 1 by the hoisting machine 3.
- the control device 5 moves the car 9 up and down at a set speed by controlling the rotation of the hoisting machine 3.
- a pair of car guide rails 11 that guide the raising and lowering of the car 9 and a pair of counterweight guide rails 12 that guide the raising and lowering of the counterweight 10 are installed.
- a car shock absorber 13 for buffering the collision of the car 9 with the hoistway bottom and a counterweight buffer 14 for buffering the collision of the counterweight 10 with the hoistway bottom are installed. ing.
- an emergency stop device 15 that is engaged with the car guide rail 11 to stop the car 9 in an emergency is mounted.
- a progressive type emergency stop device is used (in general, an elevator device having a rated speed exceeding 45 m / min uses a progressive type emergency stop device).
- the emergency stop device 15 is provided with an operating lever 16 for operating the emergency stop device 15.
- the machine room 2 is provided with a speed governor 17 that detects overspeed traveling of the car 9.
- the governor 17 includes a governor sheave 18, an overspeed detection switch, a rope catch, and the like.
- a governor rope 19 is wound around the governor sheave 18.
- the governor rope 19 is laid in a ring shape in the hoistway 1 and connected to the operating lever 16. Further, the governor rope 19 is wound around a tension wheel 20 arranged at the lower part of the hoistway 1. When the car 9 is raised and lowered, the governor rope 19 is circulated and the governor sheave 18 is rotated at a rotational speed corresponding to the traveling speed of the car 9.
- the governor 17 mechanically detects that the traveling speed of the car 9 has reached an overspeed. As the overspeed to be detected, a first overspeed Vos higher than the rated speed Vr and a second overspeed Vtr higher than the first overspeed are set.
- the overspeed detection switch When the traveling speed of the car 9 reaches the first overspeed Vos, the overspeed detection switch is operated. When the overspeed detection switch is operated, the power supply to the hoisting machine 3 is cut off, and the car 9 is suddenly stopped by the hoisting machine brake 7.
- FIG. 2 is a block diagram schematically showing the main part of the elevator apparatus of FIG.
- the emergency stop device 15 is provided with a rotation spring 22 that biases the operating lever 16 in a direction opposite to the direction in which the emergency stop device 15 is operated (clockwise direction in FIG. 2).
- An initial rotation amount is given to the rotation spring 22. This initial rotation amount generates a resistance force for pulling up the operating lever 16 and prevents the operating lever 16 from being inadvertently rotated. Therefore, even if the hoisting machine brake 7 is operated while the car 9 is running and the vertical vibration is generated in the car 9, the operating lever 16 is not lifted and the emergency stop device 15 is not operated.
- the connecting portion 23 is fixed to the governor rope 19.
- a pulling bar 24 is connected between the connecting portion 23 and the operating lever 16. That is, the governor rope 19 is connected to the operating lever 16 via the connecting portion 23 and the pulling bar 24. Further, the upper end portion of the pull-up bar 24 is rotatably connected to the connecting portion 23. Further, the lower end portion of the pull-up bar 24 is rotatably connected to the operating lever 16.
- a pressure plate 26 is supported on the ceiling of the car 9 via a support spring 25.
- the lower surface of the pressing plate 26 is in contact with the upper surface of the connecting portion 23.
- the holding plate 26 is a weighting body that adds weight to the operating lever 16 during normal operation.
- the support spring 25 is initially compressed by gravity due to the mass of the pressing plate 26 (m 0). Further, the pressing plate 26 is not connected to the governor rope 19.
- the speed governor mechanism (mass body) 21 includes an operation lever 16, a speed governor sheave 18, a speed governor rope 19, a tension wheel 20, a connecting portion 23, a pull-up bar 24, and a pressing plate 26. is doing.
- FIG. 3 is an explanatory view showing the force acting on the operating lever 16 of FIG. Below, among the governor mechanism 21, the governor sheave 18, the governor rope 19, and the tension wheel 20 are referred to as a governor system. Further, the operating lever 16, the pulling bar 24, the connecting portion 23, and the pressing plate 26 are regarded as an integral mass point and are called a lever system.
- the inertial mass of the governor system is M and the mass of the lever system is m
- a represents the acceleration of the lever system
- k represents the spring constant of the rotary spring 22.
- the external force term shown on the right side is the gravity mg generated in the lever system, the initial resistance force Fs of the rotary spring 22, and the reaction force Fr from the stopper that suppresses the lever system from moving downward with the gravity mg and the initial resistance force Fs. Composed.
- the car 9 falls at a gravitational acceleration ( ⁇ g) due to the breaking of the suspension means 8, but the acceleration of the lever system is different from ⁇ g as described above.
- the pressing plate 26 is mounted on the connecting portion 23.
- the emergency stop device 15 is quickly activated by the pulling-up operation of the operating lever 16, as shown in FIG. Therefore, when the suspension means 8 is broken, the emergency stop device 15 can be operated at a speed lower than the speed Vtr at which the conventional emergency stop device 15 operates, and the stroke of the car shock absorber 13 can be shortened. Therefore, the hoistway pit can be shortened with a simple configuration, and space can be saved in the vertical direction of the hoistway 1.
- FIG. 8 is a block diagram schematically showing the main part of an elevator apparatus according to Embodiment 2 of the present invention
- FIG. 9 is a plan view showing the car 9 of FIG.
- a pair of pins 31 serving as guide portions are provided upright on the ceiling portion of the car 9.
- a pair of support springs 32 that surround the pin 31 are provided on the car 9.
- a pair of gripping levers (weighted bodies) 33 that are opposed to each other are supported on the support spring 32.
- the support spring 32 is provided between the gripping lever 33 and the car 9 and is initially compressed by the gripping lever 33 in a normal state. Further, at normal times, the pin 31 penetrates the grip lever 33, and the grip lever 33 can move up and down along the pin 31.
- a portion of the governor rope 19 opposite to the side connected to the operating lever 16 is disposed between the grip levers 33.
- a gripping spring 34 is provided between the gripping levers 33 as a gripping biasing body that biases the gripping levers 33 in directions close to each other.
- FIG. 10 is an exploded perspective view showing an essential part of FIG. 9 in an enlarged manner.
- the grip lever 33 is provided with a hole 33a into which the pin 31 is inserted.
- the gripping lever 33 is normally engaged with the pin 31 and is away from the governor rope 19.
- the grip lever 33 is brought into a weightless state, whereby the support spring 32 returns to the initial length and the grip lever 33 is moved upward with respect to the car 9.
- the grip lever 33 grips the governor rope 19 by the spring force of the grip spring 34.
- the speed governor mechanism (mass body) 35 includes an operation lever 16, a speed governor sheave 18, a speed governor rope 19, a tension wheel 20, a connecting portion 23, a pull-up bar 24, and a grip lever 33. is doing.
- Other configurations are the same as those in the first embodiment.
- the grip lever 33 is restrained from moving in the horizontal plane by the pin 31.
- the suspension means 8 is broken, as shown in FIG. 11, the grip lever 33 is brought into a weightless state, and the support spring 32 returns to the free length. For this reason, the grip lever 33 comes off the pin 31 and floats.
- the difference between the deceleration -g of the car 9 and the deceleration of the lever system increases, so that the operation delay of the lever system increases, and as shown in FIG. 15 will operate quickly. Therefore, when the suspension means 8 is broken, the emergency stop device 15 can be operated at a speed lower than the speed Vtr at which the conventional emergency stop device 15 operates, and the stroke of the car shock absorber 13 can be shortened. Therefore, the hoistway pit can be shortened with a simple configuration, and space can be saved in the vertical direction of the hoistway 1.
- the gripping spring 34 is shown as the gripping biasing body, but the gripping biasing body is not limited to this, and may be a magnet, for example.
- the 1: 1 roping elevator apparatus is shown in FIG. 1, the roping system is not limited to this, and the present invention can be applied to, for example, a 2: 1 roping elevator apparatus.
- the present invention can be applied to a machine room-less elevator without the machine room 2 and various types of elevator apparatuses.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Description
実施の形態1.
図1はこの発明の実施の形態1によるエレベータ装置を示す構成図である。図において、昇降路1の上部には、機械室2が設けられている。機械室2には、巻上機(駆動装置)3、そらせ車4、及び制御装置5が設置されている。巻上機3は、駆動シーブ6と、駆動シーブ6を回転させる巻上機モータと、駆動シーブ6の回転を制動する巻上機ブレーキ(電磁ブレーキ)7とを有している。
(M+m)a+kx=-mg-Fs+Fr
(M+m)a+kx=0
(M+m)a+kx=-mg-Fs
a=-(m+Fs/g)g/(M+m)
次に、図8はこの発明の実施の形態2によるエレベータ装置の要部を模式的に示す構成図、図9は図8のかご9を示す平面図である。かご9の天井部には、ガイド部としての一対のピン31が立設されている。また、かご9上には、ピン31を囲繞する一対の支持ばね32が設けられている。
a=(m+Fs/g)g/(M'+m)<(m+Fs/g)g/(M+m)
また、図1では1:1ローピングのエレベータ装置を示したが、ローピング方式はこれに限定されるものではなく、例えば2:1ローピングのエレベータ装置にもこの発明は適用できる。
さらに、この発明は、機械室2を持たない機械室レスエレベータや、種々のタイプのエレベータ装置に適用できる。
Claims (5)
- 昇降路内を昇降されるかご、
前記かごを吊り下げる懸架手段、
前記かごに搭載されている非常止め装置、及び
前記非常止め装置を作動させる作動レバーと、前記昇降路内に敷設され、かつ前記作動レバーに接続された調速機ロープと、前記調速機ロープが巻き掛けられた調速機シーブとを有している調速機機構
を備え、
前記懸架手段の破断時に、前記かごの加速度に対して前記作動レバーの加速度が小さくなるように前記調速機機構の慣性質量が変化されるエレベータ装置。 - 前記調速機機構は、通常時に前記作動レバーに重量を付加する加重体をさらに有しており、
前記懸架手段の破断時に、前記加重体が前記調速機機構から離れて前記加重体による重量の付加が解除される請求項1記載のエレベータ装置。 - 前記加重体は、支持ばねを介して前記かごに支持されており、
前記支持ばねは、通常時は前記加重体により初期圧縮されており、前記懸架手段の破断時に前記加重体が無重力状態となることにより初期長さに戻る請求項2記載のエレベータ装置。 - 前記調速機機構は、前記調速機ロープの前記調速機シーブに対して前記作動レバーに接続されている側とは反対側に接離可能な加重体をさらに備え、
前記加重体は、通常時に前記調速機ロープから離れており、前記懸架手段の破断時に前記調速機ロープに接続される請求項1記載のエレベータ装置。 - 前記加重体は、一対の把持レバーであり、
前記把持レバー間には、前記把持レバーを互いに近接する方向へ付勢する把持付勢体が設けられており、
前記把持レバーは、前記かごに設けられた一対のガイド部に沿って上下動可能になっており、
前記把持レバーと前記かごとの間には、一対の支持ばねが設けられており、
通常時には、前記把持レバーが前記ガイド部に係合しており、前記支持ばねが前記把持レバーにより初期圧縮されており、
前記懸架手段の破断時には、前記把持レバーが無重力状態となることにより、前記支持ばねが初期長さに戻るとともに、前記把持レバーが前記かごに対して上方へ移動され、これにより前記把持レバーが前記ガイド部から外れて前記調速機ロープを把持する請求項4記載のエレベータ装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN201380030568.1A CN104395220B (zh) | 2012-06-19 | 2013-03-11 | 电梯装置 |
JP2014520969A JP5774220B2 (ja) | 2012-06-19 | 2013-03-11 | エレベータ装置 |
DE112013003088.8T DE112013003088B4 (de) | 2012-06-19 | 2013-03-11 | Aufzugvorrichtung |
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JP2012137968 | 2012-06-19 | ||
JP2012-137968 | 2012-06-19 |
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WO2013190869A1 true WO2013190869A1 (ja) | 2013-12-27 |
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PCT/JP2013/056623 WO2013190869A1 (ja) | 2012-06-19 | 2013-03-11 | エレベータ装置 |
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CN (1) | CN104395220B (ja) |
DE (1) | DE112013003088B4 (ja) |
WO (1) | WO2013190869A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130220739A1 (en) * | 2010-11-01 | 2013-08-29 | Mitsubishi Electric Corporation | Elevator apparatus |
WO2015155854A1 (ja) * | 2014-04-09 | 2015-10-15 | 三菱電機株式会社 | エレベータ装置 |
WO2016047314A1 (ja) * | 2014-09-22 | 2016-03-31 | 三菱電機株式会社 | エレベータ装置 |
US11230457B2 (en) | 2015-12-01 | 2022-01-25 | Mitsubishi Electric Corporation | Elevator apparatus |
JP7100304B1 (ja) * | 2021-03-30 | 2022-07-13 | フジテック株式会社 | 調速機及びエレベータ |
WO2023158241A1 (ko) * | 2022-02-16 | 2023-08-24 | 네이버랩스 주식회사 | 수직 반송 시스템 |
WO2023181383A1 (ja) * | 2022-03-25 | 2023-09-28 | 三菱電機株式会社 | エレベーター、及びエレベーターの据付方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106395543A (zh) * | 2015-07-29 | 2017-02-15 | 日立电梯(中国)有限公司 | 一种电梯安全钳提拉机构 |
KR102076322B1 (ko) | 2015-11-26 | 2020-03-02 | 미쓰비시덴키 가부시키가이샤 | 엘리베이터 칸의 비상 멈춤 장치 |
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JP2012062124A (ja) * | 2010-09-14 | 2012-03-29 | Hitachi Ltd | ダブルデッキエレベーター装置 |
WO2012059970A1 (ja) * | 2010-11-01 | 2012-05-10 | 三菱電機株式会社 | エレベータ装置 |
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JP5264786B2 (ja) | 2008-01-25 | 2013-08-14 | 三菱電機株式会社 | エレベータ装置 |
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2013
- 2013-03-11 WO PCT/JP2013/056623 patent/WO2013190869A1/ja active Application Filing
- 2013-03-11 DE DE112013003088.8T patent/DE112013003088B4/de active Active
- 2013-03-11 CN CN201380030568.1A patent/CN104395220B/zh active Active
- 2013-03-11 JP JP2014520969A patent/JP5774220B2/ja active Active
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JPS51120076U (ja) * | 1975-03-26 | 1976-09-29 | ||
JP2004345803A (ja) * | 2003-05-22 | 2004-12-09 | Toshiba Elevator Co Ltd | 昇降体の非常止め装置、非常止め復帰装置及び非常止め復帰方法 |
JP2012062124A (ja) * | 2010-09-14 | 2012-03-29 | Hitachi Ltd | ダブルデッキエレベーター装置 |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130220739A1 (en) * | 2010-11-01 | 2013-08-29 | Mitsubishi Electric Corporation | Elevator apparatus |
US9505587B2 (en) * | 2010-11-01 | 2016-11-29 | Mitsubishi Electric Corporation | Elevator with acceleration detection |
WO2015155854A1 (ja) * | 2014-04-09 | 2015-10-15 | 三菱電機株式会社 | エレベータ装置 |
US10093515B2 (en) | 2014-04-09 | 2018-10-09 | Mitsubishi Electric Corporation | Elevator apparatus |
CN106132861A (zh) * | 2014-04-09 | 2016-11-16 | 三菱电机株式会社 | 电梯装置 |
JPWO2015155854A1 (ja) * | 2014-04-09 | 2017-04-13 | 三菱電機株式会社 | エレベータ装置 |
JPWO2016047314A1 (ja) * | 2014-09-22 | 2017-04-27 | 三菱電機株式会社 | エレベータ装置 |
CN107074489A (zh) * | 2014-09-22 | 2017-08-18 | 三菱电机株式会社 | 电梯装置 |
WO2016047314A1 (ja) * | 2014-09-22 | 2016-03-31 | 三菱電機株式会社 | エレベータ装置 |
CN107074489B (zh) * | 2014-09-22 | 2019-03-19 | 三菱电机株式会社 | 电梯装置 |
DE112015004314B4 (de) | 2014-09-22 | 2022-01-13 | Mitsubishi Electric Corporation | Aufzugvorrichtungen |
US11230457B2 (en) | 2015-12-01 | 2022-01-25 | Mitsubishi Electric Corporation | Elevator apparatus |
JP7100304B1 (ja) * | 2021-03-30 | 2022-07-13 | フジテック株式会社 | 調速機及びエレベータ |
WO2023158241A1 (ko) * | 2022-02-16 | 2023-08-24 | 네이버랩스 주식회사 | 수직 반송 시스템 |
WO2023181383A1 (ja) * | 2022-03-25 | 2023-09-28 | 三菱電機株式会社 | エレベーター、及びエレベーターの据付方法 |
Also Published As
Publication number | Publication date |
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CN104395220B (zh) | 2016-08-31 |
JP5774220B2 (ja) | 2015-09-09 |
DE112013003088B4 (de) | 2019-01-17 |
JPWO2013190869A1 (ja) | 2016-02-08 |
DE112013003088T5 (de) | 2015-03-12 |
CN104395220A (zh) | 2015-03-04 |
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