WO2013186867A1 - Electromagnetic brake release device for elevators - Google Patents
Electromagnetic brake release device for elevators Download PDFInfo
- Publication number
- WO2013186867A1 WO2013186867A1 PCT/JP2012/065098 JP2012065098W WO2013186867A1 WO 2013186867 A1 WO2013186867 A1 WO 2013186867A1 JP 2012065098 W JP2012065098 W JP 2012065098W WO 2013186867 A1 WO2013186867 A1 WO 2013186867A1
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- WO
- WIPO (PCT)
- Prior art keywords
- ball screw
- brake
- electromagnetic brake
- screw nut
- release
- Prior art date
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Classifications
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- 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
- B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
- B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
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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
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
- F16D2121/22—Electric or magnetic using electromagnets for releasing a normally applied brake
Definitions
- a structure in which a releasing lever is pulled up by a releasing lever and pulled up by this principle is conventionally used.
- the lever tip end portion 28 of the release lever 29 has two projections 23 positioned on the same circumference as the plurality of engagement holes 30 provided in the flange portion 13 attached to the ball screw nut 18. The points are provided at an interval of 180 degrees.
- the hole 37 of the lever end portion 28 is inserted from the handle 16 side of the brake release device 39 and fitted into the inlay portion 26 of the flange portion 13.
- the flange portion 13 is provided with twelve engagement holes 30 on the same circumference at intervals of 30 °.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Provided is a compact brake release device for an electromagnetic brake capable of releasing the brake with precision and with less force than a lever-type release lever. The device comprises: a shaft that can be inserted into a threaded portion of a brake shoe assembly that is housed in a brake core; a base that receives the reactive force to tension in the shaft during brake release; a ball screw fastened to the shaft and a ball screw nut; a radial bearing that is press fit into the outer rim of the ball screw nut; a guide fastened to the outer rim of the radial bearing; a handle mounted on the ball screw in the axial direction; a thrust bearing that is fastened between the guide and the base and that receives the reactive force of the ball screw nut of the ball screw during release; a flange provided on the ball screw nut; an engaging hole provide concentrically in the circumferential direction of the flange; a mating portion provided on the ball screw nut; a release lever capable of being mounted in the mating portion; and a protruding portion that is provided at the distal end of the release lever and that is capable of being mounted in the engaging hole in the flange.
Description
本発明は、エレベータにおいて、乗りかごを昇降させる巻上機の用電磁ブレーキ開放装置及び、ブレーキ開放装置を用いたエレベータに関する。
The present invention relates to an electromagnetic brake release device for a hoist for raising and lowering a car and an elevator using the brake release device in an elevator.
従来、エレベータにおいて、乗りかごと釣り合い錘をロープで連結し、巻上機のシーブに掛けて巻上機をモータ駆動し、昇降制御を行っている。
Conventionally, in an elevator, a lift and a counterweight are connected by a rope and hung on a sheave of a hoist to motor-drive the hoist to control elevation.
乗りかごと釣り合い錘の間には若干の重量差を設け、巻上機の駆動停止時には緩やかに一方向に昇降移動するように設定されている。巻上機には、シーブと同軸にブレーキディスクが設けられ、これと係合するブレーキシューを持つ電磁ブレーキで制動を行う。
A slight weight difference is provided between the riding gear and the counterweight, and it is set to move up and down in one direction gently when the driving of the hoisting machine is stopped. The hoisting machine is provided with a brake disc coaxial with the sheave, and braking is performed by an electromagnetic brake having a brake shoe engaged therewith.
電磁ブレーキは、常時開型電磁ブレーキを用い、エレベータの作動中はソレノイドが作動してブレーキシューとブレーキディスクが離隔しており、エレベータの駆動停止時に電磁ブレーキの電源をオフすると、制動バネによりブレーキディスクにブレーキシューを押圧して巻上機シーブを固定し、エレベータと釣り合い錘を停止させる。エレベータの保守点検時には、巻上機モータを停止させ、電磁ブレーキをオフしてエレベータを一旦所定位置に固定した後に、電磁ブレーキを一時的に開放しエレベータ位置を微調整する場合がある。
The electromagnetic brake uses a normally open type electromagnetic brake. During operation of the elevator, the solenoid operates to separate the brake shoe and the brake disc. When the power of the electromagnetic brake is turned off when the elevator is stopped, the brake spring brakes Press the brake shoe against the disc to fix the hoist sheave and stop the elevator and counterweight. At the time of maintenance of the elevator, after the winding machine motor is stopped and the electromagnetic brake is turned off to once fix the elevator in a predetermined position, the electromagnetic brake may be temporarily released to finely adjust the elevator position.
エレベータ用巻上機に取り付けられた電磁ブレーキの解放手段としては従来から解放レバーにて解放用ボルトをてこの原理で引き上げる構造が一般となっている。
As a releasing means of an electromagnetic brake attached to an elevator hoisting machine, a structure in which a releasing lever is pulled up by a releasing lever and pulled up by this principle is conventionally used.
例えば、下記特許文献１では、電磁制動機において、電磁石の固定鉄心が無励磁のとき、制動軸に設けられたライニング板がスプリングの圧力によって固定制動面と可動制動板の間に挟まれて制動を行う電磁制動器において、開放レバーの操作により緩めピンに設けた係合部を可動板に係合させて、本緩めピンと軸着されているカンチレバー（てこ）方式の開放レバーを回動させることにより、ライニング板押付力を発生させているスプリングを圧縮し、可動板を制動緩め方向に移動するようにした制動緩め装置が開示されている。
For example, in Patent Document 1 below, in the electromagnetic brake, when the fixed iron core of the electromagnet is not excited, the lining plate provided on the braking shaft is sandwiched between the fixed braking surface and the movable braking plate by the pressure of the spring to perform braking. In the electromagnetic brake, the lining portion is engaged by engaging the engaging portion provided on the loosening pin with the movable plate by operating the opening lever and rotating the cantilever (lever) type opening lever pivotally connected to the real loosening pin. A braking and loosening device is disclosed that compresses a spring generating a plate pressing force and moves a movable plate in a braking and loosening direction.
上述の特許文献１の構成において、ばね力の大きな大型の電磁ブレーキを解放する際に、解放時の操作力を従来と同等とし、かつ精度よくブレーキ解放動作を行うためには解放レバーの長さを長くしなければならない。しかし、解放レバーを長くすると、従来と同等のライニングとブレーキディスク間ギャップを空けるために従来構造以上のレバーストロークが必要となり、ブレーキ前保守寸法を大きくとる必要がある。また、レバーが長くなるとレバー重量も重くなること及びブレーキと操作者の距離も遠くなることにより、操作性が著しく悪化する。
In the configuration of Patent Document 1 described above, when releasing a large electromagnetic brake having a large spring force, the length of the release lever is equal to the conventional operation force at the time of release and to perform the brake release operation accurately. You have to make it longer. However, if the release lever is made longer, the lever stroke more than that of the conventional structure is required to make the gap between the lining and the brake disc equal to the conventional one, and it is necessary to make the pre-brake maintenance dimension larger. In addition, as the lever lengthens, the weight of the lever also increases and the distance between the brake and the operator also increases, which significantly deteriorates the operability.
そこで本発明は上記課題に鑑み、てこ式の解放レバーに比べ小さな力で精度よくブレーキ解放が可能でかつ、ブレーキ前保守寸法を縮小可能な電磁ブレーキのブレーキ解放装置を提供することを目的とする。
Therefore, in view of the above problems, it is an object of the present invention to provide a brake release device of an electromagnetic brake capable of releasing the brake accurately with a smaller force than a lever-type release lever and reducing the size of maintenance before braking. .
上記課題を解決するために、本発明による電磁ブレーキ解放装置は、ブレーキコアに収納されたブレーキシューとロッドからなるブレーキシュー組立体に連結されたボールネジと、ボールネジにネジ係合するボールネジナットと、解放時にボールネジナットの反力を受けるスラスト軸受と、ボールネジナットに取付可能な解放レバーとを備える。
In order to solve the above problems, an electromagnetic brake releasing device according to the present invention comprises a ball screw connected to a brake shoe assembly composed of a brake shoe and a rod housed in a brake core, and a ball screw nut screwed to the ball screw. A thrust bearing that receives a reaction force of a ball screw nut when released, and a release lever attachable to the ball screw nut.
本発明のエレベータの電磁ブレーキ解放装置によれば、ボールネジとボールネジナットを用いてブレーキシューを緩め方向に移動するため、カンチレバー式の解放装置に比べ、少ない力で精度よく電磁ブレーキを解放することが可能となり、解放レバー長さを短くすることができる。
According to the electromagnetic brake releasing device of the elevator of the present invention, the ball shoe and the ball screw nut are used to move the brake shoe in the loosening direction, so that the electromagnetic brake can be released accurately with less force than the cantilever type releasing device. And the release lever length can be shortened.
またブレーキ解放動作はブレーキコアを中心に解放レバーを回転させることによりブレーキ解放ができるため、カンチレバー式のブレーキ解放装置に比べブレーキコア前面の保守寸法を縮小化できる。
Further, since the brake release operation can release the brake by rotating the release lever around the brake core, the maintenance size of the front surface of the brake core can be reduced as compared with a cantilever type brake release device.
更に、解放レバーに掛けている力を緩めることによりボールネジの持つ復元力によって直ちにブレーキ解放が解除されるため、乗りかご等に万一フリーラン等の異常事態が発生しても、ブレーキ制動力を直ちに回復可能であり、安全性が高い。
Furthermore, since the release of the brake is immediately released by the restoring force of the ball screw by loosening the force applied to the release lever, the braking force can be maintained even if an abnormal situation such as a free run occurs in the car etc. It is instantly recoverable and highly safe.
以下、本発明の実施の形態に係る電磁ブレーキ解放装置について、実施例と図面
を基に説明する。なお、本発明は以下の実施例に限定されるものではない。 Hereinafter, an electromagnetic brake release device according to an embodiment of the present invention will be described based on examples and drawings. The present invention is not limited to the following examples.
を基に説明する。なお、本発明は以下の実施例に限定されるものではない。 Hereinafter, an electromagnetic brake release device according to an embodiment of the present invention will be described based on examples and drawings. The present invention is not limited to the following examples.
図１は、本実施の形態によるエレベータ１の構成を示す模式図である。本実施の形態によるエレベータ１は、建築構造物内に形成された昇降路１１０内を昇降する乗りかご１２０と、乗りかご１２０に対してロープ１３０を介して連結された釣り合い錘１４０を備える。
FIG. 1 is a schematic view showing a configuration of an elevator 1 according to the present embodiment. The elevator 1 according to the present embodiment includes a car 120 moving up and down in a hoistway 110 formed in a building structure, and a counterweight 140 connected to the car 120 via a rope 130.
また、昇降路１１０の頂部に配設され、ロープ１３０を巻き掛けることにより乗りかご１２０を昇降させる巻上機１００と、巻上機１００の近傍に配設され、ロープ１３０が装架される反らせ車１５０を備える。
The hoisting machine 100 is disposed at the top of the hoistway 110 and raises and lowers the car 120 by winding the rope 130, and is disposed in the vicinity of the hoisting machine 100, and the rope 130 is mounted on a warp A car 150 is provided.
図２は、本発明の実施例１のブレーキ解放装置及び解放レバーを装着した巻上機の電磁ブレーキを示す正面図である。
FIG. 2 is a front view showing an electromagnetic brake of a hoist equipped with a brake release device and a release lever according to a first embodiment of the present invention.
巻上機１００の軸方向端部に、ブレーキディスク３１が設けられている。Ｆはエレベータのフレームである。３４はブレーキ支持台である。ブレーキ支持台３４にはブレーキディスク３１を制動する電磁ブレーキを有するブレーキコア２２が設けられている。３９は電磁ブレーキを手動操作で開放するブレーキ開放装置である。２９は開放レバーである。開放レバー２９を矢印方向（時計方向）へ回動することにより、制動後の電磁ブレーキを開放する。
A brake disc 31 is provided at an axial end of the hoisting machine 100. F is the frame of the elevator. 34 is a brake support. The brake support base 34 is provided with a brake core 22 having an electromagnetic brake for braking the brake disc 31. A brake release device 39 releases the electromagnetic brake by manual operation. 29 is an open lever. By releasing the release lever 29 in the arrow direction (clockwise direction), the electromagnetic brake after release is released.
図３は、本発明の実施例１のブレーキ解放装置３９と解放レバー２９を装着した電磁ブレーキを示す側面図である。ブレーキ解放装置３９のボールネジナットに装着された解放レバー１８を時計方向に右回転させることにより、ボールネジナットとブレーキコア２２が当接され、ボールネジはブレーキシュー組立体２０に一体に連結されているため、ブレーキシュー組立体２０が制動バネ３３を圧縮し、ブレーキシュー３２a,３２ｂとブレーキディスク３１の間にギャップ３８を生じさせ、ブレーキ制動力の解放が行われる。
FIG. 3 is a side view showing an electromagnetic brake equipped with the brake release device 39 and the release lever 29 according to the first embodiment of the present invention. By rotating the release lever 18 mounted on the ball screw nut of the brake release device 39 clockwise to the right, the ball screw nut and the brake core 22 abut, and the ball screw is integrally connected to the brake shoe assembly 20. The brake shoe assembly 20 compresses the brake spring 33 to create a gap 38 between the brake shoes 32a and 32b and the brake disc 31, and release of the braking force is performed.
図４Ａは、本発明の実施例１のブレーキ解放装置の解放レバーを示す正面図である。また、図４Ｂは、本発明の実施例１のブレーキ解放装置の解放レバーを示す側面図である。
FIG. 4A is a front view showing the release lever of the brake release device of the first embodiment of the present invention. Moreover, FIG. 4B is a side view which shows the release lever of the brake release apparatus of Example 1 of this invention.
解放レバー２９は、解放時のトルクを伝達するレバー部２７とブレーキ解放装置３９のボールネジナットに接続可能なドーナツ状の穴３７を有するレバー先端部２８からなり、ボールネジナットのインロー部に取付可能である。
The release lever 29 is composed of a lever portion 27 for transmitting torque at the time of release and a lever tip portion 28 having a donut shaped hole 37 connectable to the ball screw nut of the brake release device 39, and can be attached to the inlay portion of the ball screw nut is there.
図５は、本発明の実施例１のブレーキ解放装置の詳細を示す断面図である。図６は、図５におけるＡ矢視図である。
FIG. 5 is a cross-sectional view showing details of the brake release device of the first embodiment of the present invention. 6 is a view on arrow A in FIG.
図５において、実施例１による電磁ブレーキ解放装置は、ブレーキコア２２中央に設けた穴３６に収納された先端にブレーキシューを有するブレーキシュー組立体２０のネジ穴部４１に挿しこみ可能なネジ４３の切られたシャフト１０と、ブレーキ解放時にシャフト１０の引張力の反力を受けてブレーキコア２２に伝えるスペーサ部材としてのベース１１と、シャフト１０に締結されたボールネジ１２と、ボールネジ１２にネジ嵌合するボールネジナット１８と、ボールネジナット１８の外側に圧入されたフランジ部１３と、フランジ部１３の外側に圧入されたラジアル軸受１４と、ラジアル軸受１４の外輪と締結されたガイド１５と、ボールネジ１２の一端に取り付けられたハンドル１６と、ガイド１５とベース１１の間に締結され解放時にボールネジナット１８が反力を受けるスラスト軸受１７とを備える。
Referring to FIG. 5, the electromagnetic brake releasing apparatus according to the first embodiment includes a screw 43 which can be inserted into a screw hole portion 41 of a brake shoe assembly 20 having a brake shoe at its tip housed in a hole 36 provided at the center of the brake core 22. The base 11 as a spacer member that receives the reaction force of the tensile force of the shaft 10 when releasing the brake, transmits it to the brake core 22, the ball screw 12 fastened to the shaft 10, and the ball screw 12 The ball screw nut 18, the flange portion 13 press-fitted to the outside of the ball screw nut 18, the radial bearing 14 press-fitted to the outside of the flange portion 13, the guide 15 fastened with the outer ring of the radial bearing 14, and the ball screw 12 Handle 16 attached to one end of the frame, and it is fastened and released between the guide 15 and the base 11 And a thrust bearing 17 which the ball screw nut 18 receives a reaction force.
シャフト１０は連結部材であって、これを省略してブレーキシュー組立体２０とボールネジ１２を直結することもできる。４４はボールストッパである。
The shaft 10 is a connecting member, which can be omitted to directly connect the brake shoe assembly 20 and the ball screw 12. 44 is a ball stopper.
また、ボールネジナット１８に固定されたフランジ部１３上には周方向に同心円状に設けられた係合穴３０と、インロー部２６とを備える。
Further, on the flange portion 13 fixed to the ball screw nut 18, an engagement hole 30 and an inlay portion 26 concentrically provided in the circumferential direction are provided.
ベース１１と、フランジ部１３と、ラジアル軸受１４と、ガイド１５と、スラスト軸受１７と、ボールネジナット１８とは一体となってナット組立体２１を形成する。ナット組立体２１はボールネジ１２上を軸長手方向に回転しながら移動可能な構造を持つ。
The base 11, the flange portion 13, the radial bearing 14, the guide 15, the thrust bearing 17, and the ball screw nut 18 integrally form a nut assembly 21. The nut assembly 21 has a structure that can move while rotating in the axial longitudinal direction on the ball screw 12.
ここで、ハンドル１６を回動してシャフト１０先端のネジ４３を、ブレーキシュー組立体２０のネジ穴部４１にねじ込み、シャフト当接部１９をブレーキシュー組立体２０に突き当てて固定する。その後、ナット組立体２１をブレーキコア２２側に回転させつつ移動し、ベース１１とブレーキコア２２を当接させる。
Here, the handle 16 is turned to screw the screw 43 at the tip of the shaft 10 into the screw hole 41 of the brake shoe assembly 20, and the shaft abutment 19 is abutted against the brake shoe assembly 20 and fixed. Thereafter, the nut assembly 21 is moved while rotating to the brake core 22 side, and the base 11 and the brake core 22 are brought into contact with each other.
図４Ａ、４Ｂにおいて、開放レバー２９のレバー先端部２８には、ボールネジナット１８に取付けたフランジ部１３に設けられた複数の係合穴３０と同一の円周上に位置する突起部２３が二箇所、１８０度間隔で設けられている。レバー先端部２８の穴３７をブレーキ解放装置３９のハンドル１６側から挿入し、フランジ部１３のインロー部２６にはめ込む。フランジ部１３には３０°間隔で同一円周上に１２個の係合穴３０が設けられている。
In FIGS. 4A and 4B, the lever tip end portion 28 of the release lever 29 has two projections 23 positioned on the same circumference as the plurality of engagement holes 30 provided in the flange portion 13 attached to the ball screw nut 18. The points are provided at an interval of 180 degrees. The hole 37 of the lever end portion 28 is inserted from the handle 16 side of the brake release device 39 and fitted into the inlay portion 26 of the flange portion 13. The flange portion 13 is provided with twelve engagement holes 30 on the same circumference at intervals of 30 °.
ボールネジナット１８のフランジ部１３の係合穴３０の位相角は、解放レバー２９の突起部２３と一致しているため、解放レバー１８の突起部２３はフランジ部１３の係合穴３０に挿入できる。また、フランジ部１３の係合穴は３０°間隔で同一円周上に１２個空いているため、解放レバー２９による解放動作は最も解放しやすい角度で動作することができる。
Since the phase angle of the engagement hole 30 of the flange portion 13 of the ball screw nut 18 coincides with the projection 23 of the release lever 29, the projection 23 of the release lever 18 can be inserted into the engagement hole 30 of the flange 13 . Further, since 12 engagement holes of the flange portion 13 are provided on the same circumference at intervals of 30 °, the release operation by the release lever 29 can be operated at the most easy to release angle.
図７は、本発明の実施例２のブレーキ解放装置及び解放レバーを装着した電磁ブレーキを示す側面図である。図８は、本発明の実施例２のブレーキ解放装置の解放レバーを示す正面図である。
FIG. 7 is a side view showing an electromagnetic brake equipped with a brake release device and a release lever according to a second embodiment of the present invention. FIG. 8 is a front view showing the release lever of the brake release device of the second embodiment of the present invention.
図８に示すように、開放レバー４８はレバー先端部５０に正六角形の係合穴４９を有し、レバー部４７を有する。一方、ブレーキ開放装置３９Ａのボールネジナット１８Ａ外周は、開放レバー４８のレバー先端部５０の正六角形の係合穴４９と係合する様に、外周が正六角形に形成されている。ここで、開放レバー４８をブレーキ開放装置３９Ａのボールネジナット１８Ａに係合させ、実施例１と同様にブレーキ開放装置３９Ａを回動操作して、電磁ブレーキを開放することができる。
As shown in FIG. 8, the release lever 48 has a regular hexagonal engagement hole 49 at the lever tip 50 and a lever portion 47. On the other hand, the outer periphery of the ball screw nut 18A of the brake release device 39A is formed in a regular hexagonal shape so as to engage with the regular hexagonal engagement hole 49 of the lever tip portion 50 of the release lever 48. Here, the release lever 48 can be engaged with the ball screw nut 18A of the brake release device 39A, and the brake release device 39A can be turned as in the first embodiment to release the electromagnetic brake.
開放レバーとブレーキ開放装置のボールネジナットは、このほかにも回動トルクを伝達可能な任意の結合形式を適用することができる。例えば、開放レバーをブレーキ開放装置のボールネジナット側面に差し込む形式でもよい。
As the release lever and the ball screw nut of the brake release device, any connection type capable of transmitting a rotational torque can be applied. For example, the release lever may be inserted into the side surface of the ball screw nut of the brake release device.
上記実施例において、開放レバーはブレーキ開放装置に着脱自在として、作業者が手動操作で操作している。ここで、開放レバーは、手動式の他に、例えばバッテリーモータで起動されるボールネジナットと係合するソケットを有する電動式開放レバーを用いることもできる。この場合には、開放レバー本体をブレーキ開放装置に何らかの手段で回動方向に係止して反力を受け簡単なボタン操作で電磁ブレーキ開放操作を行う事ができる。
In the above embodiment, the release lever is manually operated by the operator as the release lever is detachable from the brake release device. Here, as the release lever, in addition to the manual type, it is also possible to use a motorized release lever having a socket engaged with a ball screw nut activated by a battery motor, for example. In this case, the release lever main body is locked in the rotational direction by the brake release device by some means, the reaction force can be received, and the electromagnetic brake release operation can be performed by a simple button operation.
また、開放レバーとブレーキ開放装置のボールネジナットは、着脱方式が操作性に優れているが、そもそもボールネジ方式を用いた場合は回動トルクが小さくてすみ、開放レバーも短いもので足りるから、ボールネジナットにコンパクトな開放レバーを永久的に固定しても問題はない。
In addition, the release lever and the ball screw nut of the brake release device are excellent in operability, but when using the ball screw method, the rotation torque can be small and the release lever needs to be short. There is no problem if the compact release lever is permanently fixed to the screw nut.
ここで、ブレーキ解放動作中に発生しうるフリーラン等の緊急事態が発生した場合は即座にブレーキ制動力を回復させ、エレベーターを安全に停止させる必要がある。
Here, when an emergency such as a free run which may occur during the brake release operation, it is necessary to restore the braking force immediately to stop the elevator safely.
本発明によるブレーキ解放装置は解放レバーにかけている手を離す、すなわち解放レバーにかけている力を抜くことによりボールネジの復元力によってブレーキ解放が解除されるため万一のフリーラン等の異常事態発生時にもブレーキ制動力を即座に回復可能であり安全性が高い。
The brake release device according to the present invention releases the hand on the release lever, that is, by releasing the force applied to the release lever, the brake release is released by the restoring force of the ball screw and the brake is released even in the event of a free run etc. The braking force can be instantly recovered and safety is high.
さらに、ボールネジとボールネジナット部の間に異物が侵入するとボールネジの円滑な運動が妨げられ、ボールネジの復元力が阻害される恐れがある。その場合、上記のフリーラン等の緊急事態が発生した場合にブレーキ制動力を回復できず大事故に繋がる恐れがあるため、ボールネジとナット部の間には異物混入防止用のシール構造が備えてあることが望ましい。
Furthermore, if foreign matter intrudes between the ball screw and the ball screw nut portion, smooth movement of the ball screw may be impeded, and the restoring force of the ball screw may be hindered. In that case, if an emergency such as the above-mentioned free run occurs, the braking force can not be recovered and there is a risk of leading to a major accident. Therefore, a seal structure for preventing foreign matter contamination is provided between the ball screw and the nut portion. It is desirable to have.
１・・・エレベータ，１０・・・シャフト，１１・・・ベース，１２・・・ボールネジ，１３・・・フランジ部，１４・・・ラジアル軸受，１５・・・ガイド，１６・・・ハンドル，１７・・・スラスト軸受，１８・・・ボールネジナット，２０・・・ブレーキシュー組立体，２１・・・ナット組立体，２２・・・ブレーキコア，２３・・・突起部，２６・・・インロー部，２７・・・レバー部，８・・・レバー先端部，２９、４８・・・解放レバー，３０・・・係合穴，３１・・・ブレーキディスク，３２ａ、３２ｂ・・・ブレーキシュー，３３・・・制動バネ，３４・・・ブレーキ支持台，３７、４９・・・係合穴，３９、３９Ａ・・・ブレーキ解放装置，４４・・・ボールストッパ，１００・・・巻上機，１１０・・・昇降路，１２０・・・乗りかご，１３０・・・ロープ，１４０・・・釣り合い錘。
DESCRIPTION OF SYMBOLS 1 ... Elevator, 10 ... Shaft, 11 ... Base, 12 ... Ball screw, 13 ... Flange part, 14 ... Radial bearing, 15 ... Guide, 16 ... Handle, DESCRIPTION OF SYMBOLS 17 ... Thrust bearing, 18 ... Ball screw nut, 20 ... Brake shoe assembly, 21 ... Nut assembly, 22 ... Brake core, 23 ... Projection part, 26 ... In- low Part 27, 27 ... lever part, 8 ... lever tip, 29, 48 ... release lever, 30 ... engagement hole, 31 ... brake disc, 32a, 32b ... brake shoe, 33: Brake spring, 34: Brake support, 37, 49: Engaging hole, 39, 39A: Brake release device, 44: Ball stopper, 100: Winding machine, 110 · · · hoistway, 120 ... cab, 130 ... rope, 140 ... counterweight.
Claims (8)
- エレベータの乗りかごと釣り合い錘を昇降駆動する巻上機と、巻上機に設けられたブレーキディスクをブレーキシューを介して制動しバネの弾性力により巻上機を停止させる電磁ブレーキと、前記バネの弾性力に抗して前記電磁ブレーキの制動を開放する電磁ブレーキ開放装置を有し、該機電磁ブレーキ解放装置は、前記ブレーキシューを収納するブレーキコアと、前記ブレーキシューに連結されたボールネジ及び該ボールネジとネジ係合するボールネジナットと、電磁ブレーキ解放時に前記ボールネジナットの反力を受けるスラスト軸受と、前記ボールネジナットに取付けられて該ボールネジナットを回動させる解放レバーとを備えたことを特徴とするエレベータの電磁ブレーキ解放装置。 A hoisting machine for raising and lowering an elevator car and a counterweight, an electromagnetic brake for braking a brake disk provided on the hoisting machine via a brake shoe and stopping the hoisting machine by an elastic force of a spring, the spring An electromagnetic brake releasing device for releasing the braking of the electromagnetic brake against the elastic force of the electromagnetic brake, the machine electromagnetic brake releasing device comprising: a brake core for accommodating the brake shoe; a ball screw connected to the brake shoe; A ball screw nut screw-engaged with the ball screw, a thrust bearing receiving reaction force of the ball screw nut at the time of releasing the electromagnetic brake, and a release lever attached to the ball screw nut for rotating the ball screw nut Electromagnetic brake release device for elevators.
- 請求項１に記載のエレベータの電磁ブレーキ解放装置において、前記ブレーキコアと、前記スラスト軸受との間に電磁ブレーキ解放時に前記ボールネジナットの反力を受けるベースを設けたことを特徴とするエレベータの電磁ブレーキ解放装置。 The electromagnetic brake releasing device for an elevator according to claim 1, wherein a base for receiving a reaction force of the ball screw nut at the time of releasing the electromagnetic brake is provided between the brake core and the thrust bearing. Brake release device.
- 請求項１または２に記載のエレベータの電磁ブレーキ解放装置において、前記解放レバーを前記ボールネジナットに着脱自在に設けたことを特徴とするエレベータの電磁ブレーキ解放装置。 The electromagnetic brake release device for an elevator according to claim 1 or 2, wherein the release lever is detachably provided on the ball screw nut.
- 請求項１または２に記載の巻上機電磁ブレーキ解放装置において、前記ボールネジナット外周に係合穴を周方向に均等に設けたフランジ部を固定し、前記解放レバー先端に、前記フランジ部の係合穴と係合する突起部を設けたことを特徴とする巻上機電磁ブレーキ解放装置。 The winding machine electromagnetic brake release device according to claim 1 or 2, wherein a flange portion provided with an engagement hole equally in the circumferential direction on the outer periphery of the ball screw nut is fixed, and engagement of the flange portion with the tip of the release lever A winding machine electromagnetic brake release device characterized by comprising a projection which engages with a mating hole.
- 請求項１または２に記載の巻上機電磁ブレーキ解放装置において、前記ボールネジナット外周に角形係合部を設け、前記解放レバー先端に、前記ボールネジナット外周の角形係合部と係合する係合穴を設けたことを特徴とする巻上機電磁ブレーキ解放装置。 The winding machine electromagnetic brake releasing device according to claim 1 or 2, wherein a square engaging portion is provided on the outer periphery of the ball screw nut, and an engagement is engaged with the square engaging portion on the outer periphery of the ball screw nut at the tip of the release lever. A winding machine electromagnetic brake release device characterized in that a hole is provided.
- 請求項１または２に記載のエレベータの電磁ブレーキ解放装置において、前記フランジ部外周に設けられたラジアル軸受と、該ラジアル軸受外周に設けられたガイドを有することを特徴とするエレベータの電磁ブレーキ解放装置。 The electromagnetic brake releasing apparatus for an elevator according to claim 1 or 2, further comprising: a radial bearing provided on the outer periphery of the flange portion; and a guide provided on the outer periphery of the radial bearing. .
- 請求項１または２に記載のエレベータの電磁ブレーキ解放装置において、前記ブレーキシューと前記ボールネジの間を連結するシャフトを設けたことを特徴とするエレベータの電磁ブレーキ解放装置。 The electromagnetic brake releasing device for an elevator according to claim 1 or 2, further comprising a shaft connecting between the brake shoe and the ball screw.
- 請求項７に記載の巻上機電磁ブレーキ解放装置において、前記シャフトに締結された前記ボールネジの他端に、前記ボールネジおよび前記シャフトを前記ブレーキシューにネジ係合させるように回動するハンドルを設けたことを特徴とする巻上機電磁ブレーキ解放装置。 The hoist according to claim 7, wherein the ball screw and the other end of the ball screw fastened to the shaft are provided with a handle that turns so as to screw the ball screw and the shaft into the brake shoe. A winding machine electromagnetic brake release device characterized by the above.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014521033A JP5824149B2 (en) | 2012-06-13 | 2012-06-13 | Elevator electromagnetic brake release device |
| PCT/JP2012/065098 WO2013186867A1 (en) | 2012-06-13 | 2012-06-13 | Electromagnetic brake release device for elevators |
| IN10316DEN2014 IN2014DN10316A (en) | 2012-06-13 | 2012-06-13 | |
| CN201280073900.8A CN104395217B (en) | 2012-06-13 | 2012-06-13 | The release gear for electromagnetic brake of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/065098 WO2013186867A1 (en) | 2012-06-13 | 2012-06-13 | Electromagnetic brake release device for elevators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013186867A1 true WO2013186867A1 (en) | 2013-12-19 |
Family
ID=49757731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2012/065098 WO2013186867A1 (en) | 2012-06-13 | 2012-06-13 | Electromagnetic brake release device for elevators |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5824149B2 (en) |
| CN (1) | CN104395217B (en) |
| IN (1) | IN2014DN10316A (en) |
| WO (1) | WO2013186867A1 (en) |
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| CN103935928A (en) * | 2014-04-29 | 2014-07-23 | 三峡大学 | Electromagnetic brake with air pressure damping structure |
| WO2018216111A1 (en) * | 2017-05-23 | 2018-11-29 | 三菱電機株式会社 | Brake release device for elevator |
| CN113669383A (en) * | 2021-08-18 | 2021-11-19 | 南京佗道医疗科技有限公司 | Motion joint brake and swing mechanism |
| KR102341994B1 (en) * | 2021-08-30 | 2021-12-21 | 김정록 | Apparatus for braking sheave for elevator |
| KR102341995B1 (en) * | 2021-08-30 | 2021-12-21 | 김정록 | Apparatus for braking sheave for elevator |
| JP7024898B1 (en) * | 2021-02-10 | 2022-02-24 | 三菱電機株式会社 | Brake release device |
| CN114408695A (en) * | 2021-12-08 | 2022-04-29 | 上海市建筑科学研究院科技发展有限公司 | Manual uniform-speed descending speed limiting mechanism for construction elevator |
| CN114988312A (en) * | 2021-03-02 | 2022-09-02 | 三菱电机株式会社 | Brake release device |
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| WO2018025312A1 (en) * | 2016-08-01 | 2018-02-08 | 三菱電機株式会社 | Car fixing device for elevator |
| JP6732695B2 (en) * | 2017-06-27 | 2020-07-29 | 株式会社日立ビルシステム | Electromagnetic brake release device and elevator |
| CN110723615B (en) * | 2019-07-17 | 2021-02-12 | 南通中天精密仪器有限公司 | Brake releasing device of elevator brake |
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| CN114906764A (en) * | 2021-02-10 | 2022-08-16 | 三菱电机株式会社 | Brake release device |
| CN114906764B (en) * | 2021-02-10 | 2024-01-16 | 三菱电机株式会社 | brake release device |
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| KR102341995B1 (en) * | 2021-08-30 | 2021-12-21 | 김정록 | Apparatus for braking sheave for elevator |
| CN114408695A (en) * | 2021-12-08 | 2022-04-29 | 上海市建筑科学研究院科技发展有限公司 | Manual uniform-speed descending speed limiting mechanism for construction elevator |
| CN114408695B (en) * | 2021-12-08 | 2023-07-14 | 上海市建筑科学研究院科技发展有限公司 | Manual uniform descending speed limiting mechanism for construction lifter |
Also Published As
| Publication number | Publication date |
|---|---|
| IN2014DN10316A (en) | 2015-08-07 |
| CN104395217B (en) | 2016-08-24 |
| JP5824149B2 (en) | 2015-11-25 |
| CN104395217A (en) | 2015-03-04 |
| JPWO2013186867A1 (en) | 2016-02-01 |
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