JP2004131204A - Hoisting machine for elevator - Google Patents

Hoisting machine for elevator Download PDF

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Publication number
JP2004131204A
JP2004131204A JP2002295166A JP2002295166A JP2004131204A JP 2004131204 A JP2004131204 A JP 2004131204A JP 2002295166 A JP2002295166 A JP 2002295166A JP 2002295166 A JP2002295166 A JP 2002295166A JP 2004131204 A JP2004131204 A JP 2004131204A
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Japan
Prior art keywords
braking
housing
iron core
rotating body
concave portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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JP2002295166A
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Japanese (ja)
Inventor
Naoyuki Maruyama
丸山 直之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2002295166A priority Critical patent/JP2004131204A/en
Publication of JP2004131204A publication Critical patent/JP2004131204A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a thin hoisting machine for an elevator capable of easily obtaining required braking release action by an electromagnet mechanism in a braking machine. <P>SOLUTION: A housing 1 and a stator winding of an electric motor are integrated, and a rotary body 6 constituting the electric motor and a drive sheave are integrated. A movable iron core 16 of the braking machine 12 operates in the longitudinal direction of a shaft 4 to transmit its displacement to a braking shoe 22 through operation of an L-shaped operation piece 19. Consequently, a suction area for obtaining a suction force of the electromagnet mechanism 17 for operation of the braking shoe 22 can be ensured, and depth of a recessed part 5 of the rotary body 6 is reduced to make the hoisting machine thin further. For this reason, an installation space for the hoisting machine is further reduced to save and reduce a hoistway space to facilitate the installation of the elevator and reduce construction cost for a hoistway. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
この発明は、ハウジングと電動機の固定子が一体的に構成されて、固定子に対応した電動機のロータが駆動綱車と一体的に構成され、駆動綱車の回転軸線に沿う方向の外形寸法が短く、すなわち薄形に形成された薄形巻上機からなるエレベーター用巻上機に関する。
【0002】
【従来の技術】
従来の薄形巻上機からなるエレベーター用巻上機では、ハウジングと電動機の固定子が一体的に形成され、また固定子に対応した電動機のロータが駆動綱車と一体的に製作される。これによって、薄形の巻上機を実現して巻上機の設置スペースの減少によるエレベーターの昇降路スペースを節減し、エレベーターの設置を容易化し、また昇降路の構築費を低減する作用を得ることができるように設計されている。
【0003】
そして、電動機のロータを構成した回転体の一方の側面に開口した凹所に次に述べる構造の制動機が設けられる。すなわち、回転体の凹所の内周面に形成された制動面、ハウジング側に設けられた制動腕に装備されて制動面に対向して配置された制動シュー、ハウジング側に設けられて制動腕を介して制動シューを制動面に押圧する制動ばね並びにハウジング側に設けられた固定鉄心及びこの固定鉄心に対向して配置されて制動面に対して進退変位すなわち回転体の半径方向に変位する可動鉄心からなる電磁石機構が設けられる。
【0004】
このような制動機によって、エレベーターの停止時には制動ばねによって制動シューを制動面に押圧し電動機のロータを構成した回転体、すなわち駆動綱車を制動する。また、エレベーターの昇降運転時に電磁石機構が付勢されることにより、電磁石機構の固定鉄心が吸引動作し可動鉄心が吸引されて変位する。これにより昇降運転時に、制動シューが制動ばねによる押圧力に抗して制動面から後退変位して駆動綱車の制動を解除するようになっている。(例えば、特許文献1参照)
【0005】
【特許文献1】
特開2000−289954号公報(第3頁、図1)
【0006】
【発明が解決しようとする課題】
一般に電磁石機構の吸引能力は吸引面積、すなわち可動鉄心の固定鉄心に対する投影面積に影響を受けるので、吸引面積が減少すると吸引能力がほぼ比例して低下する。この吸引能力低下対策として固定鉄心の高さを増し、コイル巻回数を増す手段があるが、この手段を実施しても磁束が飽和して吸引力は増加しなくなる。一方、上記のような従来の薄形巻上機を形成するエレベーター用巻上機において、巻上機を薄形化するためには回転体の凹所の奥行きを浅く設計する必要がある。
【0007】
また、従来の薄形巻上機に設けられた電磁石機構の可動鉄心が回転体の半径方向に変位して固定鉄心に吸引される。このような構成のもとに、巻上機の薄形化のために回転体凹所の奥行きを浅くすると、可動鉄心の固定鉄心に対する投影面積幅も狭くなる。このため、可動鉄心の固定鉄心に対する所要の投影面積が得られなくなって吸引力不足となり電磁石機構による正常な制動解除作用が得られなくなる。したがって、巻上機の薄形化に限界が生じるという問題点があった。
【0008】
この発明は、かかる問題点を解消するためになされたものであり、薄形であって、制動機における電磁石機構による所要の制動解除作用を容易に得ることができるエレベーター用巻上機を得ることを目的とする。
【0009】
【課題を解決するための手段】
この発明に係るエレベーター用巻上機においては、一方の側面に開口した凹部を有するハウジングと、このハウジングに設けられてハウジングの凹部を貫通して設けられた軸と、一方の側面に開口した凹所が設けられ、ハウジングの凹部に嵌合状態に配置されて軸に枢着された回転体と、この回転体の外周に設けられた電機子及びハウジングの凹部における電機子と対向した内面に設けられた固定子巻線からなる電動機と、回転体における他方の側面寄りの外周に形成された駆動綱車と、回転体の凹所の内周面に形成された制動面、ハウジング側に設けられて吸着面が軸の長手に直交して配置された固定鉄心及びこの固定鉄心の吸着面に対向して配置されて軸の長手に沿う方向に動作する可動鉄心からなる電磁石機構、L字状をなしL字の屈折部が固定鉄心に枢着されL字の長辺が可動鉄心によって押圧される作動片並びに制動面に対向して配置され脚部が作動片のL字の短辺に係合されてハウジング側に設けられた制動ばねによって制動面に押圧される制動シューからなり、電磁石機構の動作によって制動シューが制動ばねによる押圧力に抗して制動面から後退変位する制動機とが設けられる。
【0010】
【発明の実施の形態】
実施の形態1.
図1〜図3は、この発明の実施の形態の一例を示す図で、図1は正面図、図2は図1のA−A線断面図、図3は図1のB−B線断面図である。図において、ハウジング1に一方の側面に開口した凹部2が設けられ、またハウジング1の要部をなし凹部2を覆う状態に装着された支持板3が設けられる。そして、軸4がハウジング1の凹部2の中心を貫通した状態に配置され、一端がハウジング1に、他端は支持板3に装着される。
【0011】
また、一方の側面に開口した凹所5を有する回転体6が軸4に枢着されて、ハウジング1の凹部2に嵌合状態に配置される。そして、回転体6の外周に設けられた電機子7及びハウジング1の凹部2における電機子7と対向した内面に設けられた固定子巻線8からなる電動機9が装備される。また、回転体6における他方の側面寄りの外周に駆動綱車10が形成される。
【0012】
そして、回転体6の中心部における支持板3側に、軸4に空隙を形成して嵌合して配置された回転検出器11が設けられる。また、次に述べるように構成された制動機12が回転体6の凹所5に設けられる。すなわち、回転体6の凹所5における電機子7に対向した内周面に形成された制動面13、ハウジング1側に設けられて回転体6の凹所5の奥側に配置され吸着面を軸4の長手に直交して配置された固定鉄心14、固定鉄心14に装備されたコイル15が設けられる。
【0013】
また制動機12には、回転体6の凹所5の開口端側に設けられて固定鉄心14の吸着面に対向して配置され軸4の長手に沿う方向に動作する可動鉄心16、固定鉄心14、コイル15及び可動鉄心16を主要部材として構成された電磁石機構17、L字状をなし固定鉄心14の上面及び下面にそれぞれ設けられてL字の屈折部が固定鉄心14の上面又は下面に枢着されL字の長辺18が可動鉄心16によって押圧される作動片19が設けられる。
【0014】
さらに制動機12には、制動面13に対向してブレーキライニング20が装着されて脚部に設けられた貫通孔に作動片19のL字の短辺21が係合された制動シュー22、ハウジング1側に設けられて制動シュー22を制動面13に押圧する制動ばね23、固定鉄心14に設けられて作動片19のL字の長辺18の先端部に対向して配置されたスリーブ24、スリーブ24に空隙を形成して嵌合されたピン25、可動鉄心16にねじ込まれてピン25の先端に対向して配置された調整ボルト26、調整ボルト26にねじ込まれて可動鉄心16に対面したロックナット27が設けられる。
【0015】
上記のように構成されたエレベーター用巻上機において、ハウジング1と電動機9の固定子巻線8が一体的に形成され、また固定子巻線8に対応して回転体6、すなわち電動機9のロータが駆動綱車10と一体的に製作される。これによって、薄形の巻上機を実現して巻上機の設置スペースの減少によるエレベーターの昇降路スペースを節減し、エレベーターの設置を容易化し、また昇降路の構築費を低減することができる。
【0016】
そして、回転体6の一方の側面に開口した凹所5に制動機12が設けられ、エレベーターの停止時には制動機12を形成する電磁石機構17のコイル15が消勢される。これにより、可動鉄心16が固定鉄心14に対して図2に示す空隙gを形成した位置に配置され、制動シュー22が制動ばね23によって制動面13に押圧されて、回転体6、すなわち駆動綱車10が制動される。
【0017】
また、エレベーターの運転時には電動機9が付勢されると共に、制動機12を形成する電磁石機構17のコイル15が付勢される。これにより、可動鉄心16が固定鉄心14に吸引されて変位し図2に示す空隙gが消失する。そして、調整ボルト26によってピン25を介して作動片19のL字の長辺18の先端部が押圧されて図3に示す矢印a方向に変位する。
【0018】
この作動片19のL字の長辺18の変位により、作動片19のL字の短辺21が図3に示す矢印b方向に変位して、制動シュー22が制動ばね23の押圧力に抗して制動面13から後退する。これによって、回転体6、すなわち駆動綱車10の制動が解除され、電動機9によって駆動綱車10が駆動されて図示が省略してあるが、駆動綱車10に巻掛けられた主索に吊持されたかご等が昇降運転される。
【0019】
また、制動機12において電磁石機構17の可動鉄心16が、軸4の長手に沿う方向に動作して固定鉄心14に吸引され、可動鉄心16の変位が作動片19の回動動作を介して制動シュー22に伝動されて、制動シュー22が回転体6の半径方向に動作する。
【0020】
この制動シュー22の動作に対する電磁石機構17の吸引力を得るための電磁石機構17の吸引面積S、すなわち図1及び図2に示すL2×L3を、前述の従来の薄形巻上機からなる巻上機の電磁石機構よりも広くすることができる。また、電磁石機構17の吸引面積Sを十分広くするために図2に示すL4を長くする必要がない。
【0021】
したがって、制動機12の電磁石機構17による正常な制動解除作用が容易に得られると共に、回転体6の凹所5の奥行きを浅くすることができてエレベーター用巻上機を一層薄形化することができる。これにより、薄形の巻上機により巻上機の設置スペースが一層減少して、さらにエレベーターの昇降路スペースを節減し、エレベーターの設置を容易化し、また昇降路の構築費を低減することができる。
【0022】
また、制動機12に設けられて可動鉄心16の動作による作動片19の押圧状態を調整する調整ボルト26が、ハウジング1の凹部2における開口部側に配置される。このため、調整ボルト26を容易に操作することができ可動鉄心16の動作による作動片19の押圧状態を容易に調整することができる。
【0023】
また、作動片19における長辺18と短辺21の長さの比、すなわち図3におけるm2、m1をm2/m1>1とすることによって、調整ボルト26による調整範囲を拡大することができる。これによって、可動鉄心16の動作による作動片19の押圧状態調整作業を容易化することができる。
【0024】
【発明の効果】
この発明は以上説明したように、一方の側面に開口した凹部を有するハウジングと、このハウジングに設けられてハウジングの凹部を貫通して設けられた軸と、一方の側面に開口した凹所が設けられ、ハウジングの凹部に嵌合状態に配置されて軸に枢着された回転体と、この回転体の外周に設けられた電機子及びハウジングの凹部における電機子と対向した内面に設けられた固定子巻線からなる電動機と、回転体における他方の側面寄りの外周に形成された駆動綱車と、回転体の凹所の内周面に形成された制動面、ハウジング側に設けられて吸着面が軸の長手に直交して配置された固定鉄心及びこの固定鉄心の吸着面に対向して配置されて軸の長手に沿う方向に動作する可動鉄心からなる電磁石機構、L字状をなしL字の屈折部が固定鉄心に枢着されL字の長辺が可動鉄心によって押圧される作動片並びに制動面に対向して配置され脚部が作動片のL字の短辺に係合されてハウジング側に設けられた制動ばねによって制動面に押圧される制動シューからなり、電磁石機構の動作によって制動シューが制動ばねによる押圧力に抗して制動面から後退変位する制動機とを設けたものである。
【0025】
これによって、ハウジングと電動機の固定子巻線が一体的に形成され、また固定子巻線に対応して回転体、すなわち電動機のロータが駆動綱車と一体的に製作される。また、制動機において電磁石機構の可動鉄心が、軸の長手に沿う方向に動作して固定鉄心に吸引され、可動鉄心の変位が作動片の回動動作を介して制動シューに伝動されて、制動シューが回転体6の半径方向に動作する。そして、制動シューの動作に対する電磁石機構の吸引力を得るための電磁石機構の吸引面積を従来の薄形巻上機からなる巻上機の電磁石機構よりも広くすることができ、また電磁石機構の吸引面積を十分広くするために、電磁石機構の軸の長手に沿う方向の外形を長くする必要がない。したがって、制動機の電磁石機構による正常な制動解除作用が容易に得られると共に、回転体の凹所の奥行きを浅くすることができて巻上機を一層薄形化することができる。これにより、薄形巻上機からなる巻上機の設置スペースが一層減少し、さらにエレベーターの昇降路スペースを節減し、エレベーターの設置を容易化し、また昇降路の構築費を低減する効果がある。
【図面の簡単な説明】
【図1】この発明の実施の形態1を示す正面図。
【図2】図1のA−A線断面図。
【図3】図1のB−B線断面図。
【符号の説明】
1 ハウジング、2 凹部、4 軸、5 凹所、6 回転体、7 電機子、8固定子巻線、9 電動機、10 駆動綱車、12 制動機、13 制動面、14 固定鉄心、16 可動鉄心、17 電磁石機構、18 L字の長辺、19作動片、21 L字の短辺、22 制動シュー、23 制動ばね。
[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, the housing and the stator of the electric motor are integrally formed, the rotor of the electric motor corresponding to the stator is integrally formed with the drive sheave, and the outer dimensions in the direction along the rotation axis of the drive sheave are reduced. The present invention relates to an elevator hoist comprising a thin hoist formed short, that is, thin.
[0002]
[Prior art]
In a conventional elevator hoist including a thin hoist, a housing and a stator of an electric motor are integrally formed, and a rotor of the electric motor corresponding to the stator is integrally formed with a drive sheave. As a result, a thin hoist can be realized, and the space required for installing the hoist can be reduced, thereby reducing the space required for the hoistway of the elevator, facilitating the installation of the elevator, and reducing the construction cost of the hoistway. Designed to be able to.
[0003]
Then, a brake having a structure described below is provided in a concave portion opened on one side surface of the rotating body constituting the rotor of the electric motor. That is, a braking surface formed on the inner peripheral surface of the concave portion of the rotating body, a braking shoe provided on the braking arm provided on the housing side and arranged opposite to the braking surface, a braking arm provided on the housing side A stationary spring provided on the housing side and a movable core disposed opposite to the stationary core to move forward and backward with respect to the braking surface, that is, displace in the radial direction of the rotating body. An electromagnet mechanism including an iron core is provided.
[0004]
With such a brake, when the elevator stops, the brake shoe presses the brake shoe against the brake surface to brake the rotating body constituting the rotor of the electric motor, that is, the drive sheave. In addition, when the electromagnet mechanism is energized during the elevating operation of the elevator, the stationary core of the electromagnet mechanism is attracted and the movable core is attracted and displaced. As a result, during the lifting operation, the braking shoe is displaced backward from the braking surface against the pressing force of the braking spring, and the braking of the drive sheave is released. (For example, see Patent Document 1)
[0005]
[Patent Document 1]
JP-A-2000-289954 (page 3, FIG. 1)
[0006]
[Problems to be solved by the invention]
In general, the attraction capacity of the electromagnet mechanism is affected by the attraction area, that is, the projected area of the movable iron core with respect to the fixed iron core. Therefore, as the attraction area decreases, the attraction ability decreases almost in proportion. As a countermeasure against the decrease in the suction ability, there is a means for increasing the height of the fixed iron core and increasing the number of turns of the coil. However, even if this means is implemented, the magnetic flux is saturated and the suction force does not increase. On the other hand, in the elevator hoisting machine forming the conventional thin hoisting machine as described above, it is necessary to design the depth of the recess of the rotating body to be small in order to make the hoisting machine thin.
[0007]
Further, the movable core of the electromagnet mechanism provided in the conventional thin hoist is displaced in the radial direction of the rotating body and is attracted to the fixed iron core. Under such a configuration, if the depth of the rotating body recess is reduced to make the hoist thinner, the projected area width of the movable iron core with respect to the fixed iron core also becomes smaller. For this reason, the required projected area of the movable iron core with respect to the fixed iron core cannot be obtained, and the attraction force is insufficient, so that the normal braking release operation by the electromagnet mechanism cannot be obtained. Therefore, there has been a problem that there is a limit in reducing the thickness of the hoist.
[0008]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator hoisting machine which is thin and can easily obtain a required braking release action by an electromagnet mechanism in a brake. With the goal.
[0009]
[Means for Solving the Problems]
In the elevator hoist according to the present invention, a housing having a concave portion opened on one side surface, a shaft provided in the housing and provided through the concave portion of the housing, and a concave portion opened on one side surface. A rotating body which is arranged in a fitting state in the recess of the housing and is pivotally attached to the shaft; and an armature provided on the outer periphery of the rotating body and an inner face of the recess in the housing facing the armature. Motor, a drive sheave formed on the outer periphery of the rotating body near the other side, a braking surface formed on the inner circumferential surface of the recess of the rotating body, provided on the housing side. And an L-shaped electromagnet mechanism comprising a fixed iron core having a suction surface orthogonal to the longitudinal axis of the shaft and a movable iron core disposed opposite the suction surface of the fixed iron core and operating in a direction along the longitudinal axis of the shaft. None L-shaped squat The arm is pivotally attached to the fixed iron core, and the long side of the L-shape is disposed opposite to the actuating piece pressed by the movable iron core and the braking surface, and the leg is engaged with the short side of the L-shape of the operating piece to move toward the housing. A brake is provided which comprises a braking shoe pressed against the braking surface by the provided braking spring, and which is displaced backward from the braking surface by the operation of the electromagnet mechanism.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
1 to 3 show an embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG. FIG. In FIG. 1, a housing 1 is provided with a concave portion 2 which is opened on one side surface, and a support plate 3 which is a main part of the housing 1 and is mounted so as to cover the concave portion 2 is provided. The shaft 4 is disposed so as to pass through the center of the concave portion 2 of the housing 1, and one end is mounted on the housing 1 and the other end is mounted on the support plate 3.
[0011]
In addition, a rotating body 6 having a concave portion 5 opened on one side is pivotally mounted on the shaft 4 and is arranged in a fitted state in the concave portion 2 of the housing 1. An electric motor 9 including an armature 7 provided on the outer periphery of the rotating body 6 and a stator winding 8 provided on an inner surface of the concave portion 2 of the housing 1 facing the armature 7 is provided. A drive sheave 10 is formed on the outer periphery of the rotating body 6 near the other side surface.
[0012]
A rotation detector 11 is provided on the support plate 3 side at the center of the rotating body 6 so as to form a gap with the shaft 4 and to fit the rotation detector 11. A brake 12 configured as described below is provided in the recess 5 of the rotating body 6. That is, the braking surface 13 formed on the inner peripheral surface of the recess 5 of the rotating body 6 facing the armature 7, the suction surface provided on the housing 1 side and disposed on the deep side of the recess 5 of the rotating body 6 A fixed iron core 14 arranged orthogonal to the longitudinal direction of the shaft 4 and a coil 15 mounted on the fixed iron core 14 are provided.
[0013]
The brake 12 includes a movable core 16, which is provided on the opening end side of the recess 5 of the rotating body 6, is disposed to face the suction surface of the fixed core 14, and operates in a direction along the length of the shaft 4, An electromagnet mechanism 17 having a coil 14, a movable core 16 as a main member and an L-shaped fixed core 14 are provided on the upper and lower surfaces of the fixed core 14, respectively. An actuating piece 19 is provided, which is pivotally attached and whose long side 18 is pressed by the movable iron core 16.
[0014]
Further, a brake shoe 22 having a brake lining 20 attached to the brake 12 facing the braking surface 13 and an L-shaped short side 21 of an operation piece 19 engaged with a through hole provided in a leg, A braking spring 23 provided on one side to press the braking shoe 22 against the braking surface 13, a sleeve 24 provided on the fixed iron core 14 and disposed opposite to a tip end of the long side 18 of the L-shaped operation piece 19, A pin 25 fitted in the sleeve 24 with a gap formed therein, an adjusting bolt 26 screwed into the movable iron core 16 and arranged opposite the tip of the pin 25, and screwed into the adjusting bolt 26 to face the movable iron core 16. A lock nut 27 is provided.
[0015]
In the elevator hoist constructed as described above, the housing 1 and the stator winding 8 of the electric motor 9 are integrally formed, and the rotating body 6, that is, the electric motor 9 corresponds to the stator winding 8. The rotor is made integral with the drive sheave 10. As a result, it is possible to realize a thin-type hoist, thereby reducing elevator hoistway space due to a reduction in a hoisting machine installation space, facilitating elevator installation, and reducing hoistway construction costs. .
[0016]
A brake 12 is provided in the recess 5 opened on one side of the rotating body 6, and the coil 15 of the electromagnet mechanism 17 forming the brake 12 is deenergized when the elevator stops. Thereby, the movable iron core 16 is arranged at a position where the gap g shown in FIG. 2 is formed with respect to the fixed iron core 14, and the brake shoe 22 is pressed against the brake surface 13 by the brake spring 23, and the rotating body 6, that is, the driving rope The car 10 is braked.
[0017]
During operation of the elevator, the electric motor 9 is energized and the coil 15 of the electromagnet mechanism 17 forming the brake 12 is energized. As a result, the movable iron core 16 is attracted to the fixed iron core 14 and displaced, and the gap g shown in FIG. 2 disappears. Then, the tip of the long side 18 of the L-shaped piece 19 of the operating piece 19 is pressed by the adjustment bolt 26 via the pin 25 and displaced in the direction of arrow a shown in FIG.
[0018]
Due to the displacement of the long side 18 of the L-shape of the operating piece 19, the short side 21 of the L-shape of the operating piece 19 is displaced in the direction of the arrow b shown in FIG. 3, and the brake shoe 22 resists the pressing force of the brake spring 23. And retreats from the braking surface 13. As a result, the braking of the rotating body 6, that is, the drive sheave 10 is released, and the drive sheave 10 is driven by the electric motor 9. Although not shown in the drawings, the drive sheave 10 is suspended from the main rope wound around the drive sheave 10. The held basket and the like are operated to move up and down.
[0019]
In the brake 12, the movable iron core 16 of the electromagnet mechanism 17 operates in the direction along the length of the shaft 4 and is attracted to the fixed iron core 14, and the displacement of the movable iron core 16 is braked through the rotation of the operation piece 19. The power is transmitted to the shoe 22 so that the brake shoe 22 moves in the radial direction of the rotating body 6.
[0020]
The suction area S of the electromagnet mechanism 17 for obtaining the attraction force of the electromagnet mechanism 17 for the operation of the brake shoe 22, that is, L2 × L3 shown in FIGS. It can be wider than the electromagnet mechanism of the upper machine. Further, it is not necessary to lengthen L4 shown in FIG. 2 in order to sufficiently increase the suction area S of the electromagnet mechanism 17.
[0021]
Therefore, normal braking release action by the electromagnet mechanism 17 of the brake 12 can be easily obtained, and the depth of the concave portion 5 of the rotating body 6 can be reduced, so that the elevator hoist can be further thinned. Can be. As a result, the installation space of the hoist can be further reduced by the thin hoist, the space for the elevator hoistway can be further reduced, the elevator installation can be simplified, and the construction cost of the hoistway can be reduced. it can.
[0022]
Further, an adjustment bolt 26 provided on the brake 12 to adjust the pressing state of the operation piece 19 by the operation of the movable iron core 16 is arranged on the opening side of the recess 2 of the housing 1. Therefore, the adjustment bolt 26 can be easily operated, and the pressing state of the operation piece 19 by the operation of the movable iron core 16 can be easily adjusted.
[0023]
Further, by setting the ratio of the length of the long side 18 to the length of the short side 21 of the operation piece 19, that is, m2 and m1 in FIG. 3 to m2 / m1> 1, the adjustment range by the adjustment bolt 26 can be expanded. Thereby, the operation of adjusting the pressing state of the operation piece 19 by the operation of the movable iron core 16 can be facilitated.
[0024]
【The invention's effect】
As described above, the present invention provides a housing having a concave portion opened on one side, a shaft provided on the housing and penetrating through the concave portion of the housing, and a concave portion opened on one side. A rotating body which is arranged in a fitting state in the recess of the housing and is pivotally attached to a shaft; an armature provided on the outer periphery of the rotating body; and a fixing provided on an inner surface of the recess of the housing facing the armature. An electric motor consisting of a child winding, a drive sheave formed on the outer periphery of the rotating body near the other side surface, a braking surface formed on the inner circumferential surface of the recess of the rotating body, and an adsorption surface provided on the housing side Is an L-shaped electromagnet mechanism comprising a fixed iron core arranged perpendicular to the longitudinal axis of the shaft and a movable iron core arranged in opposition to the suction surface of the fixed iron core and operating in the direction along the longitudinal axis of the shaft. To the fixed core An L-shaped long side of the operating piece is pressed by the movable iron core and a braking spring provided on the housing side, the leg portion being disposed to face the braking surface and being engaged with the L-shaped short side of the operating piece. A brake is provided which is composed of a braking shoe pressed against the braking surface, and which is displaced backward from the braking surface by the operation of the electromagnet mechanism.
[0025]
As a result, the housing and the stator winding of the electric motor are integrally formed, and the rotor, that is, the rotor of the electric motor, is integrally formed with the drive sheave corresponding to the stator winding. Further, in the brake, the movable core of the electromagnet mechanism operates in the direction along the length of the shaft and is attracted to the fixed core, and the displacement of the movable core is transmitted to the brake shoe via the rotating operation of the operating piece, thereby causing braking. The shoe moves in the radial direction of the rotating body 6. Further, the attraction area of the electromagnet mechanism for obtaining the attraction force of the electromagnet mechanism with respect to the operation of the braking shoe can be made wider than the electromagnet mechanism of the conventional hoist consisting of a thin-type hoist. In order to make the area sufficiently large, it is not necessary to lengthen the outer shape in the direction along the axis length of the electromagnet mechanism. Therefore, a normal braking release operation by the electromagnet mechanism of the brake can be easily obtained, and the depth of the concave portion of the rotating body can be reduced, so that the hoist can be further thinned. This has the effect of further reducing the installation space for the hoist consisting of the thin hoist, further reducing the elevator hoistway space, facilitating the elevator installation, and reducing the hoistway construction costs. .
[Brief description of the drawings]
FIG. 1 is a front view showing a first embodiment of the present invention.
FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a sectional view taken along line BB of FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing, 2 recesses, 4 shafts, 5 recesses, 6 rotors, 7 armatures, 8 stator windings, 9 motors, 10 drive sheaves, 12 brakes, 13 braking surfaces, 14 fixed iron cores, 16 movable iron cores , 17 electromagnet mechanism, 18 L-shaped long side, 19 working piece, 21 L-shaped short side, 22 brake shoe, 23 brake spring.

Claims (1)

一方の側面に開口した凹部を有するハウジングと、このハウジングに設けられて上記凹部を貫通して設けられた軸と、一方の側面に開口した凹所が設けられて上記ハウジングの凹部に嵌合状態に配置され上記軸に枢着された回転体と、この回転体の外周に設けられた電機子及び上記ハウジングの凹部における上記電機子と対向した内面に設けられた固定子巻線からなる電動機と、上記回転体における他方の側面寄りの外周に形成された駆動綱車と、回転体の凹所の内周面に形成された制動面、上記ハウジング側に設けられて吸着面が上記軸の長手に直交して配置された固定鉄心及びこの固定鉄心の吸着面に対向して配置されて上記軸の長手に沿う方向に動作する可動鉄心からなる電磁石機構、L字状をなしL字の屈折部が上記固定鉄心に枢着されL字の長辺が上記可動鉄心によって押圧される作動片並びに上記制動面に対向して配置され脚部が上記作動片のL字の短辺に係合されて上記ハウジング側に設けられた制動ばねによって上記制動面に押圧される制動シューからなり、上記電磁石機構の動作によって上記制動シューが上記制動ばねによる押圧力に抗して上記制動面から後退変位する制動機とを備えたエレベーター用巻上機。A housing having a concave portion opened on one side surface, a shaft provided in the housing and penetrating the concave portion, and a concave portion opened on one side surface being fitted into the concave portion of the housing; And a rotating body pivotally attached to the shaft, and an electric motor comprising an armature provided on the outer periphery of the rotating body and a stator winding provided on an inner surface of the recess of the housing facing the armature. A drive sheave formed on the outer periphery of the rotating body near the other side surface, a braking surface formed on the inner circumferential surface of the recess of the rotating body, and a suction surface provided on the housing side and having a suction surface extending along the longitudinal axis of the shaft. An electromagnet mechanism comprising a fixed iron core arranged perpendicular to the movable core and a movable iron core arranged in opposition to the suction surface of the fixed iron core and operating in a direction along the length of the axis, an L-shaped bent portion Is pivotally connected to the fixed iron core The long side of the L-shape is disposed on the housing side by being opposed to the operating piece pressed by the movable iron core and the braking surface, and the leg is engaged with the short side of the L-shape of the operating piece. An elevator, comprising: a braking shoe pressed against the braking surface by a braking spring, the brake shoe being displaced backward from the braking surface by the operation of the electromagnet mechanism against the pressing force of the braking spring. Hoist.
JP2002295166A 2002-10-08 2002-10-08 Hoisting machine for elevator Pending JP2004131204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002295166A JP2004131204A (en) 2002-10-08 2002-10-08 Hoisting machine for elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002295166A JP2004131204A (en) 2002-10-08 2002-10-08 Hoisting machine for elevator

Publications (1)

Publication Number Publication Date
JP2004131204A true JP2004131204A (en) 2004-04-30

Family

ID=32285505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002295166A Pending JP2004131204A (en) 2002-10-08 2002-10-08 Hoisting machine for elevator

Country Status (1)

Country Link
JP (1) JP2004131204A (en)

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