WO2014125574A1 - エレベータ装置 - Google Patents
エレベータ装置 Download PDFInfo
- Publication number
- WO2014125574A1 WO2014125574A1 PCT/JP2013/053316 JP2013053316W WO2014125574A1 WO 2014125574 A1 WO2014125574 A1 WO 2014125574A1 JP 2013053316 W JP2013053316 W JP 2013053316W WO 2014125574 A1 WO2014125574 A1 WO 2014125574A1
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- WIPO (PCT)
- Prior art keywords
- roller
- governor
- rotation
- speed
- rotating body
- Prior art date
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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
- B66B5/16—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
- the present invention relates to an elevator apparatus, and more particularly, to an elevator apparatus provided with a speed governor that can set an overspeed during an ascending operation and an overspeed during a descending operation to different values.
- Elevator devices are generally equipped with a governor that constantly monitors the ascending / descending speed of the car and makes the car emergency stop when the car falls into a predetermined overspeed state.
- the speed governor when the raising / lowering speed of the car exceeds the rated speed and reaches the first overspeed (usually 1.3 times the rated speed), the power supply of the hoisting machine that drives the car, and this Each power supply of the control device that controls the hoisting machine is shut off.
- the governor turns off the emergency stop device provided on the car. Operate and mechanically stop the car.
- Patent Document 1 discloses a speed control rope connected to an elevator car, a sheave around which the speed control rope is wound, a first speed control mechanism that controls the rotational speed of the sheave, and a sheave.
- a speed control device including a second speed control mechanism that is connected to the horizontal shaft of the main shaft via a clutch mechanism and adjusts the rotational speed of the sheave when the rotational force of the sheave is transmitted is described.
- the clutch mechanism transmits the rotational force of the sheave to the second speed governor and reverses (when the elevator car is raised).
- the transmission of the rotational force is canceled, the first speed governing mechanism detects the overspeed at the time of ascending, the second speed governing mechanism detects the overspeed at the time of descending, and the moving direction of the elevator car Depending on the system, different values of overspeed can be detected.
- Patent Document 1 exemplifies a one-way clutch and the like.
- the transmission of the horizontal shaft of the sheave is released by the clutch mechanism during the lift operation of the elevator.
- the rotation of the horizontal axis is gradually transmitted to the rotating body of the second speed governing mechanism due to the frictional resistance, and the second speed governing mechanism may be in the speed controlling state.
- the descending overspeed is set to be smaller than the ascending overspeed, so if the sheave rotation during the ascending operation that rotates at high speed is transmitted to the second governing mechanism by friction resistance, the descending overspeed is erroneously detected. As a result, the elevator may stop abnormally.
- An object of the present invention is to provide a first speed governor for detecting an overspeed during an ascending operation and a second speed governor for detecting an overspeed during a descending operation, and the sheave of the sheave via a cam type one-way clutch.
- Another object of the present invention is to prevent the second governor from erroneously detecting the descending overspeed during the ascending operation, and further to the governor when shifting to the descending operation.
- An object of the present invention is to provide an elevator apparatus capable of suppressing the application of an impact.
- the present invention is characterized by having a rotation prevention mechanism that prevents the rotating body of the second governor from rotating during the ascending operation.
- the present invention is characterized by having a rotation prevention mechanism that prevents the rotating body of the second governor from rotating when the transmission of the sheave to the second governor is released. To do.
- the second speed governor it is possible to prevent the second speed governor from erroneously detecting the descending overspeed during the ascending operation, and further, when the transition to the descending operation is performed, there is an impact on the governor. It is possible to suppress the addition.
- an elevator apparatus connects a lifting body (cage) 300 and a counterweight 400 in a hoistway 200 provided in a building 1000 by a main rope 500, and the lifting body 300 can be lifted and lowered along a guide rail 700. It is comprised so that.
- a hoisting machine 600 around which the main rope 500 is wound, a control panel (not shown) for controlling the hoisting machine 600, a speed governor, and the like are arranged in the machine room 100 formed in the upper part of the hoistway 200.
- the speed governor includes an endless speed control rope 1 stretched over the entire lifting stroke in the hoistway 200, a sheave 4 installed in the machine room 100 and wrapped around the speed control rope 1, and the like. Composed.
- the lifting body 300 is provided with an emergency stop device 800 that grips the guide rail 700 with a wedge in an emergency, and an operating lever 900 that drives the safety stop device 800 and is pivotally supported on the lifting body 300 side.
- the speed control rope 1 is connected to the operation lever 900.
- a speed governor may be installed at a fixed portion (for example, the top of the guide rail 700) at the top of the hoistway 200 without providing a machine room above the hoistway 200.
- a speed control rope 1 which is endless and is arranged in a hoistway and connected to a lifting body, and a sheave 4 fixed to a horizontal shaft 3 and wound around the speed control rope 1.
- the first governor A that regulates the rotational speed of the sheave 4 and detects the overspeed, and is connected to the horizontal shaft 3 via the clutch 5, and the sheave is lowered when the elevator is lowered.
- the second governor B that regulates the rotational speed 4 and detects the descending overspeed, the encoder 6 attached to the horizontal shaft 3, and the rope to the second governor such as during the ascending operation of the lifting body
- a rotation prevention mechanism 7 is provided for preventing the rotation of the rotating body B1 of the second governor B when the rotation of the vehicle is released.
- the horizontal shaft 3 is supported by a frame 2 provided on the top of the guide rail via a bearing, for example.
- the rotating body A1 of the first governor A is fixedly provided on one side of the horizontal shaft 3, and the rotating body B1 of the second governor B is attached to the other side of the horizontal shaft 3 via the clutch 5.
- the clutch 5 a cam type one-way clutch (cam clutch) is used, and an inner ring of the cam type one-way clutch is fixed to the horizontal shaft 3, and an outer ring is fixed to the rotating body B1.
- the clutch 5 transmits the rotation of the sheave 4 to the rotating body B1 of the second governor during the descending operation of the elevator, and the sheave 4 to the second governor during the ascending operation of the elevator. Release the rotation.
- the first governor A has a rotating body A1 and a pendulum (not shown) that is attached to the rotating body A1 and is displaced according to the rotational speed of the rotating body A1.
- the second governor B includes a rotating body B1 and a pendulum (not shown) that is attached to the rotating body B1 and is displaced according to the rotational speed of the rotating body B1.
- the first governor A is configured such that the car stop switch in the first governor A is turned on due to the displacement of the pendulum. It is configured to detect that the car's lifting speed has reached 1.3 times the rated speed.
- the car stop switch in the second governor B is turned on due to the displacement of the pendulum. It is configured as described above, and it is detected that the ascending / descending speed of the car has reached 1.3 times the rated speed.
- a flyweight speed control mechanism as described in Patent Document 1 is used, but is not limited to this. Absent.
- the elevator apparatus of the present embodiment reduces the rated speed in the descending direction from the rated speed in the ascending direction in order to reduce the feeling of closing the ears of the passenger due to a sudden change in atmospheric pressure due to the lifting and lowering of the elevator car, that is, the elevator car. It is set.
- the first speed governor A for lifting detects that the lifting speed of the car has reached 1.3 times the rated speed in the rising direction, the hoisting machine that drives the car And the control device for controlling the hoisting machine are respectively cut off.
- the second speed governor B for descent detects that the raising / lowering speed of the car has reached 1.3 times the rated speed in the descending direction, the power supply of the hoisting machine that drives the car and The power supply of the control device that controls the hoisting machine is shut off. Further, the second governor B operates the emergency stop device provided in the car to operate the car mechanically when the descending speed of the car reaches 1.4 times the rated speed for some reason. Emergency stop. That is, when the pendulum attached to the rotating body B1 is further displaced, the movement of the speed adjusting rope 1 is stopped by sandwiching the speed adjusting rope 1 by a mechanism such as that described in Patent Document 1, for example. Then, as shown in FIG.
- the operating lever 900 connected to the speed regulating rope 1 that has stopped moving is pulled up by the further lowering of the lifting body 300, and the emergency stop device 800 is operated by the pulled up operating lever 900. Then, the guide rail 700 is gripped by a wedge (not shown), and the elevator 300 is mechanically stopped in an emergency.
- the clutch 5 releases the rotation of the sheave 4 during the ascending / descending operation of the lifting body and stops the speed control.
- the first speed governor A for increasing and the second speed governor B for decreasing The speed setting value is set to a different value.
- the rotation prevention mechanism 7 includes a roller 7a provided coaxially with the rotating body B1, and a pressing force applying device 7b that applies a pressing force to the roller 7a.
- the roller 7a is fixed to the outer ring of the rotating body B1 or the cam type one-way clutch, and rotates together with the rotating body B1.
- the pressing force applying device 7 b is fixed to the frame 2 via a pedestal 70.
- the pressing force applying device 7b includes a shoe 72a that slidably contacts the roller 7a, a spring 73 that presses the shoe 72a toward the roller 7a, and a housing 74 that supports the shoe 72a and the spring 73. .
- the shoe 72a is attached to the housing 74 so as to be rotatable about a bolt 72b.
- the spring 73 is attached to the bracket portion 74 a of the housing 74 via a spring adjustment screw 75.
- the shoe 72a is pressed so as to be always in contact with the roller 7a, and biases a predetermined resistance to the rotating body B1 of the second governor B through the roller 7a.
- the second governor B is in a state in which the rotation of the horizontal shaft 3 is released by the clutch 5, but due to the frictional resistance acting in the clutch 5 (between the inner ring and the outer ring).
- the rotating body B1 tries to rotate.
- the resistance value by the rotation prevention mechanism 7 is set so as to prevent the rotation of the rotating body B1.
- this resistance value is the resistance of the rotation prevention mechanism 7 (the frictional resistance between the roller 7a and the shoe 72a) when the rotation of the horizontal shaft 3 to the rotating body B1 is released by the clutch 5 during the ascending operation. ) To prevent the rotating body B1 from rotating.
- the resistance value by the rotation prevention mechanism 7 is set to a value that does not hinder the rotation of the rotating body B1 when the clutch 5 is engaged during the descending operation.
- the resistance received by the rotating body B1 by the rotation prevention mechanism 7 during the descending operation is small compared to the rotational force of the horizontal shaft 3, and this hinders the rotation of the rotating body B1 during the descending operation. It is not something that brings
- the rotation prevention mechanism 7 prevents the rotation of the rotating body B1 of the second governor B, thereby preventing erroneous detection and improving reliability. Can do.
- the rotation of the rotating body B1 of the second governor B is quickly performed when the descent operation is stopped on the intermediate floor. Since it is blocked, the clutch 5 always meshes with the rotating body B1 of the second governor B that is in a stopped state.
- the impact at the time of meshing can be reduced, the noise can be reduced, the load on the apparatus can be reduced, and the life can be extended.
- a pressing force is applied to the roller 7a provided coaxially with the rotating body B1.
- a pressing force may be directly applied to B1. That is, in this embodiment, the rotating body B1 or the rotating body B1 is provided coaxially, and a pressing force is applied to the rotating body that rotates together with the rotating body B1.
- the elevator apparatus of the present embodiment includes a rotation prevention mechanism 17 having a structure different from that of the rotation prevention mechanism 7 shown in the first embodiment.
- the rotation prevention mechanism 17 includes a first roller 171 provided coaxially with the rotating body B ⁇ b> 1 and a second roller disposed so as to face the first roller 171. 172, a belt 173 wound around the first roller 171 and the second roller 172, a roller bracket 174 attached to the frame 2 and rotatably supporting the second roller 172, And a spring 175 for biasing the second roller 172 in a direction opposite to that of the first roller.
- the first roller 171 is fixed to the outer ring of the rotating body B1 or the cam type one-way clutch, and rotates together with the rotating body B1.
- the second roller 172 is rotatably supported by the roller bracket 174 via a shaft 176.
- the roller bracket 174 is rotatably attached to the base 170 via a shaft 177.
- a base 170 to which the roller bracket 174 is attached is fixed to the frame 2 (not shown in FIG. 3).
- the spring 175 is provided between a spring mounting portion 179 fixed to the pedestal 170 and a spring mounting portion 180 fixed to the roller bracket 174, and the spring force is adjusted by the spring adjustment screw 178.
- the second roller 172 is urged in the direction opposite to the first roller 171, thereby increasing the tension applied to the belt 173 and causing resistance to the rotating body B 1 via the first roller 171. Energized. This resistance value is adjusted by the spring adjustment screw 178 in the same way as in the first embodiment.
- a first roller 171 is provided coaxially with the rotating body B1, and a belt 173 that is pulled by the second roller in a direction opposite to the first roller is wound around the first roller 171.
- a predetermined resistance is applied to the rotating body B1 of the second governor.
- the rotation prevention mechanism 27 in the present embodiment includes a second roller 272 that is fixed to the outer ring of a cam type one-way clutch (cam clutch) 273 instead of the second roller 172 in the second embodiment.
- a pedestal having a shaft to which the inner ring of the cam type one-way clutch 273 is fixed is fixed to the frame 2.
- the cam type one-way clutch 273 allows the second roller 272 to rotate in the same direction as the first roller 171, that is, the rotating body B ⁇ b> 1 during the lowering operation of the lifting body, and the second one during the lifting operation of the lifting body.
- the roller 272 is prevented from rotating in the opposite direction.
- Example 1 a mechanism (not shown) for applying tension to the belt 173 is provided, the resistance can be effectively urged to the rotating body B1, and it is performed when the descent operation is shifted to the descent operation after stopping.
- the same effects as in Example 1 and Example 2 can be achieved.
- the cam type one-way clutch similar to that of the third embodiment is provided on the shaft 176 connecting the second roller 172 and the roller bracket 174 in the second embodiment.
- the same effects as in the first and second embodiments can be obtained.
- rotation of the rotary body B1 of the 2nd governor B can be blocked
- this invention is not limited to the above-mentioned Example, Various modifications are included.
- the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
- a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Description
Claims (5)
- 昇降体に連結された調速用ロープと、水平軸に固定されて前記調速用ロープが巻き掛けられた綱車と、前記綱車の回転速度を調速し、上昇過速度を検出する第1の調速機と、前記水平軸とクラッチを介して連結され、前記昇降体の下降運転時、前記綱車の回転速度を調速し、下降過速度を検出する第2の調速機とを備え、前記クラッチは、前記昇降体の下降運転時、前記綱車の回転を前記第2の調速機の回転体に伝達し、前記昇降体の上昇運転時、前記第2の調速機への前記綱車の回転の伝達を解除するようにしたエレベータ装置において、
前記昇降体の上昇運転時、前記第2の調速機の回転体の回転を阻止する回転阻止機構を備えたことを特徴とするエレベータ装置。 - 請求項1に記載のエレベータ装置において、
前記回転阻止機構は、前記第2の調速機への前記綱車の回転の伝達が解除された時、前記第2の調速機の回転体の回転を阻止することを特徴とするエレベータ装置。 - 請求項2に記載のエレベータ装置において、
前記回転阻止機構は、前記第2の調速機の回転体または前記回転体と同軸で一緒に回転するローラに常時抵抗を付勢することを特徴とするエレベータ装置。 - 請求項3に記載のエレベータ装置において、
前記回転阻止機構は、前記ローラと、前記ローラとは別のローラと、前記ローラと前記別のローラに巻き付けられる無端状のベルトを有し、前記別のローラはカム式ワンウェイクラッチが取り付けられた軸で支持され、前記カム式ワンウェイクラッチは前記別のローラが前記第2の調速機の回転体の下降方向の回転とは反対側に回転するのを阻止することを特徴とするエレベータ装置。 - 請求項1に記載のエレベータ装置において、
前記回転阻止機構は、前記第2の調速機の回転体と同軸で一緒に回転するローラと、前記ローラとは別のローラと、前記ローラと前記別のローラに巻き付けられる無端状のベルトを有し、前記別のローラはカム式ワンウェイクラッチが取り付けられた軸で支持され、前記カム式ワンウェイクラッチは前記別のローラが前記第2の調速機の回転体の下降方向の回転とは反対側に回転するのを阻止することを特徴とするエレベータ装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112013006662.9T DE112013006662T5 (de) | 2013-02-13 | 2013-02-13 | Aufzugsvorrichtung |
JP2015500024A JP5917764B2 (ja) | 2013-02-13 | 2013-02-13 | エレベータ装置 |
CN201380070413.0A CN104936880B (zh) | 2013-02-13 | 2013-02-13 | 电梯装置 |
CN201611089690.8A CN107055249A (zh) | 2013-02-13 | 2013-02-13 | 电梯装置 |
PCT/JP2013/053316 WO2014125574A1 (ja) | 2013-02-13 | 2013-02-13 | エレベータ装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2013/053316 WO2014125574A1 (ja) | 2013-02-13 | 2013-02-13 | エレベータ装置 |
Publications (1)
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WO2014125574A1 true WO2014125574A1 (ja) | 2014-08-21 |
Family
ID=51353608
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PCT/JP2013/053316 WO2014125574A1 (ja) | 2013-02-13 | 2013-02-13 | エレベータ装置 |
Country Status (4)
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JP (1) | JP5917764B2 (ja) |
CN (2) | CN107055249A (ja) |
DE (1) | DE112013006662T5 (ja) |
WO (1) | WO2014125574A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016102025A (ja) * | 2014-11-28 | 2016-06-02 | 株式会社日立製作所 | エレベータ装置 |
JPWO2015159375A1 (ja) * | 2014-04-16 | 2017-04-13 | 株式会社日立製作所 | エレベーター装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2182088A (en) * | 1936-12-02 | 1939-12-05 | Henry H Logan | Controller |
JP2000327241A (ja) * | 1999-05-17 | 2000-11-28 | Mitsubishi Electric Corp | エレベータ装置および調速装置 |
WO2009019780A1 (ja) * | 2007-08-09 | 2009-02-12 | Mitsubishi Electric Corporation | エレベータの調速機 |
JP2009154984A (ja) * | 2007-12-25 | 2009-07-16 | Mitsubishi Electric Corp | エレベータ用調速機 |
WO2010116503A1 (ja) * | 2009-04-09 | 2010-10-14 | 三菱電機株式会社 | エレベータ用調速機 |
WO2012017549A1 (ja) * | 2010-08-06 | 2012-02-09 | 三菱電機株式会社 | エレベータ用調速機 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2790615B2 (ja) * | 1994-10-20 | 1998-08-27 | 三菱電機株式会社 | エレベータ用調速機 |
JP4137754B2 (ja) * | 2003-09-29 | 2008-08-20 | 株式会社日立製作所 | エレベータの調速機 |
WO2006008813A1 (ja) * | 2004-07-22 | 2006-01-26 | Mitsubishi Denki Kabushiki Kaisha | エレベータの調速機 |
-
2013
- 2013-02-13 CN CN201611089690.8A patent/CN107055249A/zh active Pending
- 2013-02-13 WO PCT/JP2013/053316 patent/WO2014125574A1/ja active Application Filing
- 2013-02-13 DE DE112013006662.9T patent/DE112013006662T5/de not_active Withdrawn
- 2013-02-13 JP JP2015500024A patent/JP5917764B2/ja active Active
- 2013-02-13 CN CN201380070413.0A patent/CN104936880B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2182088A (en) * | 1936-12-02 | 1939-12-05 | Henry H Logan | Controller |
JP2000327241A (ja) * | 1999-05-17 | 2000-11-28 | Mitsubishi Electric Corp | エレベータ装置および調速装置 |
WO2009019780A1 (ja) * | 2007-08-09 | 2009-02-12 | Mitsubishi Electric Corporation | エレベータの調速機 |
JP2009154984A (ja) * | 2007-12-25 | 2009-07-16 | Mitsubishi Electric Corp | エレベータ用調速機 |
WO2010116503A1 (ja) * | 2009-04-09 | 2010-10-14 | 三菱電機株式会社 | エレベータ用調速機 |
WO2012017549A1 (ja) * | 2010-08-06 | 2012-02-09 | 三菱電機株式会社 | エレベータ用調速機 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2015159375A1 (ja) * | 2014-04-16 | 2017-04-13 | 株式会社日立製作所 | エレベーター装置 |
JP2016102025A (ja) * | 2014-11-28 | 2016-06-02 | 株式会社日立製作所 | エレベータ装置 |
CN105645219A (zh) * | 2014-11-28 | 2016-06-08 | 株式会社日立制作所 | 电梯装置 |
CN105645219B (zh) * | 2014-11-28 | 2018-05-01 | 株式会社日立制作所 | 电梯装置 |
Also Published As
Publication number | Publication date |
---|---|
JP5917764B2 (ja) | 2016-05-18 |
JPWO2014125574A1 (ja) | 2017-02-02 |
CN104936880B (zh) | 2016-12-28 |
CN107055249A (zh) | 2017-08-18 |
DE112013006662T5 (de) | 2015-12-03 |
CN104936880A (zh) | 2015-09-23 |
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