WO2006114872A1 - エレベータ用巻上装置 - Google Patents
エレベータ用巻上装置 Download PDFInfo
- Publication number
- WO2006114872A1 WO2006114872A1 PCT/JP2005/007537 JP2005007537W WO2006114872A1 WO 2006114872 A1 WO2006114872 A1 WO 2006114872A1 JP 2005007537 W JP2005007537 W JP 2005007537W WO 2006114872 A1 WO2006114872 A1 WO 2006114872A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheave
- braking
- rope
- elevator
- hoist
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/30—Operating devices electrical
-
- 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
- B66B5/185—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 by acting on main ropes or main cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/16—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes for action on ropes or cables
Definitions
- the present invention relates to an elevator hoisting device that drives a sheave around which a main rope engaged with a car is wound and raises and lowers a force cage.
- a conventional elevator hoisting device is equipped with a sheave engaged with a main rope that holds an elevator car. Then, a brake that is used for both holding when the force stops and for braking when the force stops is provided, and the rotating body linked to the sheave with the main rope engaged is controlled.
- the brake In order to hold the brake when the car is stopped, the brake is required to have a braking force that can prevent the lifting and lowering of the force with respect to the load that has a sufficient capacity for the capacity of the force.
- the braking force is limited so as to decelerate the raising and lowering of the car by a deceleration that does not have a physical effect on the passengers of the car.
- the conventional elevator hoist apparatus configured as described above satisfies the contradictory conditions between the holding braking capacity when the force is stopped and the emergency braking capacity when the force is stopped. This is required. For this reason, it is necessary to strictly manage and maintain braking torque, which increases costs. In addition, if the weight of the power is reduced or the small motor of the lifting machine is advanced after securing the required holding braking capacity, the inertia load will decrease, so the car will be Deceleration will increase. For this reason, there is a problem that it is difficult to reduce the weight of the lifting machine.
- Patent Document 1 Japanese Patent Application Publication No. 2001-294385
- a hoisting machine that engages the main rope that suspends the force cage with the sheave, drives the sheave to raise and lower the car, and rotates the rotating body linked to the sheave.
- a slow brake is installed to slow down the car ascending and descending with a deceleration that has no physical effect on passengers in the car.
- a holding brake is provided that operates after the operation of the slow brake to brake the rotating body and hold the stopped force.
- the slow brake first operates to decelerate the force, and then the holding brake operates to suddenly reduce the force. Hold at the stop position without decelerating. For this reason, the characteristics of the slow brake are irrelevant to the holding torque condition, and the design can be facilitated.
- Patent Document 1 Japanese Patent Application Publication No. JP 2001-294385
- a braking device provided in the drive device When the force is in an overspeed state, a braking device provided in the drive device operates to provide a mechanism for decelerating the car.
- the braking system provided in the drive unit is also used to stop the power during normal operation. If bad conditions overlap and the braking performance of the braking system deteriorates, or a failure occurs that the braking system itself does not drive effectively, the emergency stop device provided on the car or counterweight is activated, and the force stop is emergency stopped. There is a problem that the stop acceleration in the car is large.
- the present invention is for solving the above-described problems, and in the event that a braking performance degradation of the braking device or a failure that the braking device itself does not drive effectively occurs.
- An object of the present invention is to provide a lifting device for an elevator that can suppress an increase in installation space and an increase in the number of parts while solving the problem of large stop acceleration.
- the present invention includes a lifting machine, a sheave fixed to the output shaft of the lifting machine, a speed detector that detects a rotational speed of the output shaft of the lifting machine, and the rope during normal operation.
- An abnormality due to overspeed is detected from the rope detachment and braking means functioning as a rope detachment stop for a car or a swaying car and functioning as a braking means in an emergency, and the rotational speed detected by the speed detector. It is characterized by comprising control means for operating the rope disengagement and braking means.
- the invention's effect [0010] According to the emergency stop device for the elevator, the hoisting machine, the sheave fixed to the output shaft of the hoisting machine, and the speed detection for detecting the rotational speed of the output shaft of the hoisting machine From the rotation speed detected and detected by the speed detector. It is equipped with a control means that detects an abnormality due to speed and operates the rope detachment prevention and braking means, so that if the braking performance of the braking device deteriorates or a failure occurs that the braking device itself does not drive effectively, While solving the problem of large stop acceleration, it is possible to suppress an increase in the installation space and the number of parts.
- FIG. 1 is a diagram showing an elevator hoist apparatus according to Embodiment 1 of the present invention.
- FIG. 2 is a structural diagram of rope detachment prevention and braking means 6 according to Embodiment 1 of the present invention.
- FIG. 3 is a cross-sectional view from the side of FIG.
- FIG. 4 is a structural diagram of rope detachment prevention and braking means 6 according to Embodiment 2 of the present invention.
- FIG. 1 is a diagram illustrating an elevator hoist apparatus according to a first embodiment of the present invention.
- the sheave 2 is fixed to the main shaft of the hoist 1 on the platform on which the hoist is installed, and the hoist 1 is used to detect the rotational speed of the sheave 2 that is rotated by the drive of the hoist 1.
- a speed detector 3 is installed coaxially with the output shaft.
- a rope 4 for hanging the car up and down the hoistway is hung on the sheave 2. Then, the rope 4 is placed on the platform on which the lifting device is installed so that the cage with a predetermined position force is suspended. It is hung on a baffle 5 that is fixed so that it can rotate freely.
- a braking device that brakes the drive shaft of the lifting machine 1 during normal operation is installed in the lifting machine.
- the elevator hoisting device is provided with a rope stopper in a form along the outer circumference of the sheave 2 and the deflector 5 so that the rope 4 does not come off from the sheave 2 and the deflector 5 during operation. is set up.
- an elevator hoisting device is provided with another one in case the braking device installed in the hoisting machine 1 used during operation loses the function that the braking device should originally perform. It is necessary to provide one extra braking device.
- Japanese Patent Application Publication No. JP-A-2001-294385 As a form implemented in the issue, a sheave unit, a slow brake, and a holding brake are newly provided, but there is a problem that an increase in mounting space and an increase in the number of parts are caused.
- the rope detachment prevention / braking means 6 is arranged where the rope detachment prevention should be attached. Further, a control means 14 for controlling the operation of the rope detachment prevention / braking means 6 is electrically connected, and the control means 14 is also electrically connected to the speed detector 3.
- FIG. 2 is a structural diagram of the rope detachment prevention and braking means 6 according to the first embodiment of the present invention.
- One end is fixed to the nose and uding 7 and the other end has a sliding surface with the sheave 2 or the deflecting wheel 5.
- a braking force can be obtained by bringing the moving surface and the sliding surface of the sheave 2 or the deflecting wheel 5 into contact with each other.
- the engagement portion 7a provided on the housing 7 and the engagement portion 8a for the rope detachment stop 8 are provided. By engaging, the sliding surface of the rope detachment stop 8 and the sliding surface of the sheave 2 or the deflecting wheel 5 are configured not to contact each other.
- a spring 10 fixed to the housing 7 and the rope release stopper 8 that applies a force in a direction to release the engagement between the engagement portion 7a provided on the housing 7 and the engagement portion 8a of the rope release stopper 8. It is arranged. Furthermore, it is fixed to the housing 7, and when it is judged that there is an emergency, the engagement portion 7a provided on the housing 7 and the rope stopper 8 are engaged. An actuator 11 is arranged for moving in the direction in which the joint portion 8a is engaged.
- the actuator 11 employs an electromagnet structure comprising a housing 7 that also serves as a stator portion, a coin 12 and a mover 13, and while current flows through the coil 12, Since the magnetic circuit is formed by the housing 7 and the movable element 13 by the magnetism generated by the current flowing in the coil 12, the engaging part provided in the housing 7 is connected to the movable element 13 fixed to the rope stopper 8. The suction force is applied in the direction in which 7a and the engaging portion 8a of the rope stopper 8 are engaged. Since the control means 14 and the coil 12 are electrically connected, the force of the control means 14 can also control the coil 12.
- FIG. 3 is a cross-sectional view seen from the side of FIG.
- the sliding surface of the rope detachment stop 8 is formed so as to slide along the shape of the rope 4 hung on the sheave 2 and the deflector 5 and the force.
- the control means 14 detects the overspeed of the car according to the output value of the speed detector 3 which is provided coaxially with the output shaft of the hoisting machine 1 and detects the rotational speed of the main shaft, the coil 12 Cut off the current that was flowing in Then, a force is applied in a direction to release the engagement between the engagement portion 7a provided in the housing 7 and the engagement portion 8a of the rope release stopper 8 by the spring 10, and the engagement is released.
- the rope detachment stop 8 is moved in the direction of the sheave 2 or the deflector 5 by the force of the spring 9, and the sliding surfaces thereof slide.
- the sheave 2 and the deflector 5 can be braked by the sliding.
- control unit 14 operates normally has been described. However, if the power cannot be supplied to the control unit 14 due to a power failure, the control unit 14 performs control. However, since no power is supplied, the current is not supplied to the coil 12, which is a component of the actuator 11 of the rope disengagement and braking means 6 1 electrically connected to the control means 14. The car will be braked against the movement. Therefore, it is possible to cope with an abnormal situation at the time of a power failure by the elevator hoist apparatus of this embodiment.
- the actuator 11 of the rope detachment prevention / braking means 6 also includes an electromagnetic force composed of the coil 12, the stator, and the movable element 13.
- the function can be replaced by controlling the position of the mover 13 using, for example, a motor and a speed reduction mechanism.
- an actuator consisting of an electromagnet
- FIG. 4 is a structural diagram of the rope detachment prevention and braking means 6 according to the second embodiment of the present invention.
- the parts not particularly displayed are the same as those in the first embodiment, and in FIG. 4, the same reference numerals as those in FIG. The number indicates the same or corresponding part.
- Example 1 is a force that explains the case where the sliding surface of the rope release stopper 8 in the rope release prevention and braking means 6 with the sheave 2 or the deflector 5 is a flat surface.
- the sliding surface of the rope release stopper 8 is configured so as to follow the shape of the sliding surface of the sheave 2 or the deflector 5.
- the same effect as the first embodiment is obtained.
- the sliding surface of the rope detachment stop 8 is configured to follow the sliding surface with the sheave 2 or the deflecting wheel 5, it is possible to reduce the force to contact the sheave 2 or the deflecting wheel 5. Therefore, it is possible to further reduce the size of the rope detachment prevention and braking means 6.
- the elevator hoist apparatus according to the present invention is suitable for elevator operation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005800266555A CN1993289B (zh) | 2005-04-20 | 2005-04-20 | 电梯用曳引装置 |
JP2006526880A JPWO2006114872A1 (ja) | 2005-04-20 | 2005-04-20 | エレベータ用巻上装置 |
PCT/JP2005/007537 WO2006114872A1 (ja) | 2005-04-20 | 2005-04-20 | エレベータ用巻上装置 |
EP05734540A EP1873111A4 (en) | 2005-04-20 | 2005-04-20 | LIFTING DEVICE FOR ELEVATOR |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/007537 WO2006114872A1 (ja) | 2005-04-20 | 2005-04-20 | エレベータ用巻上装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006114872A1 true WO2006114872A1 (ja) | 2006-11-02 |
Family
ID=37214510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/007537 WO2006114872A1 (ja) | 2005-04-20 | 2005-04-20 | エレベータ用巻上装置 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1873111A4 (ja) |
JP (1) | JPWO2006114872A1 (ja) |
CN (1) | CN1993289B (ja) |
WO (1) | WO2006114872A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101811635B (zh) * | 2009-02-20 | 2012-09-26 | 三菱电机株式会社 | 电梯的绳索摆动检测装置及地震自动恢复运转控制方法 |
CN102674118A (zh) * | 2012-02-16 | 2012-09-19 | 郭自刚 | 一种钢丝绳防滑装置的电梯曳引机 |
DE102012111778A1 (de) * | 2012-12-04 | 2014-06-05 | Thyssenkrupp Elevator Ag | Seilklemme und Aufzuganlage mit Seilklemme |
CN103224175A (zh) * | 2013-04-09 | 2013-07-31 | 康力电梯股份有限公司 | 一种曳引机的制动电路控制器 |
CN103253577B (zh) * | 2013-05-22 | 2015-09-09 | 河南科技大学 | 一种用于悬挂电梯的限速制动系统 |
JP6395945B2 (ja) * | 2015-09-16 | 2018-09-26 | 三菱電機株式会社 | エレベータのそらせ車交換方法及びそらせ車交換治具 |
JP6272374B2 (ja) * | 2016-03-18 | 2018-01-31 | 三菱電機ビルテクノサービス株式会社 | ロープ外れ止め点検装置 |
CN114955778A (zh) * | 2022-07-04 | 2022-08-30 | 浙江速捷电梯有限公司 | 一种电梯安全用紧急制动装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59212371A (ja) * | 1983-05-19 | 1984-12-01 | 株式会社東芝 | エレベ−タ |
JPS62235181A (ja) * | 1986-04-04 | 1987-10-15 | 三菱電機株式会社 | エレベ−タの安全装置 |
JPH06199483A (ja) * | 1993-01-07 | 1994-07-19 | Mitsubishi Electric Corp | エレベーター用制動装置 |
JP2001278572A (ja) * | 2000-03-29 | 2001-10-10 | Mitsubishi Electric Corp | エレベータの非常停止装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR860003715Y1 (ko) * | 1982-12-06 | 1986-12-30 | 미쓰비시덴기 가부시기 가이샤 | 엘리베이터용 권상기 |
WO2006027841A1 (ja) * | 2004-09-09 | 2006-03-16 | Mitsubishi Denki Kabushiki Kaisha | エレベータ装置 |
-
2005
- 2005-04-20 JP JP2006526880A patent/JPWO2006114872A1/ja active Pending
- 2005-04-20 CN CN2005800266555A patent/CN1993289B/zh not_active Expired - Fee Related
- 2005-04-20 EP EP05734540A patent/EP1873111A4/en not_active Withdrawn
- 2005-04-20 WO PCT/JP2005/007537 patent/WO2006114872A1/ja not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59212371A (ja) * | 1983-05-19 | 1984-12-01 | 株式会社東芝 | エレベ−タ |
JPS62235181A (ja) * | 1986-04-04 | 1987-10-15 | 三菱電機株式会社 | エレベ−タの安全装置 |
JPH06199483A (ja) * | 1993-01-07 | 1994-07-19 | Mitsubishi Electric Corp | エレベーター用制動装置 |
JP2001278572A (ja) * | 2000-03-29 | 2001-10-10 | Mitsubishi Electric Corp | エレベータの非常停止装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1873111A4 * |
Also Published As
Publication number | Publication date |
---|---|
JPWO2006114872A1 (ja) | 2008-12-11 |
CN1993289A (zh) | 2007-07-04 |
CN1993289B (zh) | 2012-04-18 |
EP1873111A4 (en) | 2012-11-14 |
EP1873111A1 (en) | 2008-01-02 |
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