JP2004075353A - Winding machine for elevator - Google Patents

Winding machine for elevator Download PDF

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Publication number
JP2004075353A
JP2004075353A JP2002240089A JP2002240089A JP2004075353A JP 2004075353 A JP2004075353 A JP 2004075353A JP 2002240089 A JP2002240089 A JP 2002240089A JP 2002240089 A JP2002240089 A JP 2002240089A JP 2004075353 A JP2004075353 A JP 2004075353A
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Japan
Prior art keywords
bowl
shaped
housing
shaped rotor
back plate
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Pending
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JP2002240089A
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Japanese (ja)
Inventor
Moriya Kawaguchi
川口 守弥
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to JP2002240089A priority Critical patent/JP2004075353A/en
Publication of JP2004075353A publication Critical patent/JP2004075353A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a means capable of improving shielding properties against the outside air of a winding machine or a separation of a motor and a brake, and of preventing a temperature rise accompanying their improvement. <P>SOLUTION: This winding machine for an elevator includes a bowl-shaped housing 1 mounted with a motor armature 2 in its inner periphery; a bowl-shaped rotor 5 arranged in an internal space of the bowl-shaped housing 1, and integrally formed with a sheave unit and a motor field unit; a break 8 stored in the internal space of the bowl-shaped rotor 5; and a speed detector, and consists of a back board 4 mounted on an opening part of the bowl-shaped housing 1. A maintenance access hole is provided in the back board 4. The bowl-shaped housing 1 is completely locked by mounting a cover for locking the maintenance access hole on the back board 4. Labyrinths 12, 13 are formed at a position opposite to a predetermined position of an outer periphery part of the bowl-shaped rotor 5 and the housing member, and at the position opposite to the predetermined position of the outer periphery part of the bowl-shaped rotor 5 and the back board member. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
この発明は、エレベ−タ用巻上機に関するものである。
【0002】
【従来の技術】
図3、図4は例えば特許平12−289954号公報に示された従来の巻上機を示すものである。図4において、1は椀状に形成されたハウジングでその内周にコイルを持つモ−タの電機子2が取付けられており、ボルト3によって背板4が取付けられている。5は椀状に形成されたロ−タで、片方にロ−プ溝5aが加工されてツナ車部をなし、他方の外周面には磁石6が取付けられモ−タの界磁部分をなす。また、ロ−タ5の椀状底面円盤部5bには穴はなく、円盤の両横の空間は仕切られている。ロ−タ5の中心には軸受を介して固定軸7が通っており、モ−タの発生するトルクによりロ−タ5が回転する。5cはロ−タ5の磁石側の内周面であり、この内周面にブレ−キライニング8aが押付けられて制動力を発生する。8はロ−タ内周空間に収納されたブレ−キで、背板4に固定されているが、その詳細構造は本考案に直接の関わりはないので説明は省略する。
【0003】
図4は従来の巻上機を背板側から見た図で、同一番号は図3と同一の部品を示す。図4において、9は速度検出器を示し、ブレ−キ内部に設けられた空間に収納され、ロ−タ5の回転信号を出す。背板4は上下でハウジング1にボルト3で固定されており、その機内側の面にはブレ−キが取付けられている。このブレ−キの保守のため、機内にアクセスできるよう背板の両側は図示のごとく所定形状に削られている。10はハウジング1の開口部で、ここを通ってロ−プ11がツナ車に掛けられる。
【0004】
【発明が解決しようとする課題】
従来の巻上機において背板4はブレ−キ及び固定軸を保持するための力学的機能のみを主眼としており、力学的に不要な部位は極力削り落とされた構造となっていた。このため、モ−タ部、ブレ−キ部が外気に暴露された構造となっていた。エレベ−タの巻上機はビルの建設工事段階から使用される事が多いので、セメント粉や鉄骨の切り粉、溶接のスパッタなどの塵埃、異物に晒されることになり、コイルや絶縁を直接損傷したり、塵埃の機内堆積をもたらし、絶縁抵抗低下、短絡などの事故を招くおそれがあった。また、ロ−プには油が沁みこませてあり、ツナ車の回転遠心力によって油が飛散し、機内のモ−タ巻線に付着したり、ブレ−キの摺動面へ回り込んだりするという不具合を招く恐れがあった。
【0005】
更に、ブレ−キのライニングとロ−タ内周面との摺動による摩耗粉が発生し、モ−タ内部に侵入してコイルに付着し、絶縁劣化などを招く恐れがあった。
【0006】
この発明は上記のような課題を解決するためになされたものであり、巻上機の外気に対する遮蔽性やモ−タとブレ−キの隔離性を向上すると共に、それに伴って起こる温度上昇を抑制するための手段を提供することを目的とする。
【0007】
【課題を解決するための手段】
この発明に係るエレベータ巻上機は、内周にモ−タの電機子を取り付けた椀状のハウジングと、その内部空間に配置されツナ車部とモ−タの界磁部を備えて一体に形成された椀状のロ−タと、椀状ロ−タの内部空間に収納されたブレ−キと、速度検出器とを備え、椀状ハウジングの開口部に取り付けられた背板とから成り、
椀状ロ−タの外周部の所定位置とハウジング部材の対向する位置、および椀状ロ−タの外周部の所定位置と背板部材の対向する位置にラビリンスを形成したものである。
【0008】
また、この発明に係るエレベータ巻上機は、内周にモ−タの電機子を取り付けた椀状のハウジングと、その内部空間に配置されツナ車部とモ−タの界磁部を備えて一体に形成された椀状のロ−タと、椀状ロ−タの内部空間に収納されたブレ−キと、速度検出器とを備え、椀状ハウジングの開口部に取り付けられた背板とから成り、
前記背板に保守用のアクセス穴を設け、このアクセス穴を閉塞するカバーを前記背板に取り付けて椀状ハウジングを全面閉塞すると共に、椀状ロ−タの外周部の所定位置とハウジング部材の対向する位置、および椀状ロ−タの外周部の所定位置と背板部材の対向する位置にラビリンスを形成したものである。
【0009】
また、この発明に係るエレベータ巻上機は、椀状ハウジングの反背板側の側面に穴を空け、椀状ロ−タの反ブレ−キ側の側面にフィンを設けると共に、椀状ロ−タに一体に形成されたツナ車のモ−タ側端面とハウジング内側面との間に通風スペ−スを設けたものである。
【0010】
【発明の実施の形態】
実施の形態1.
以下、この発明の実施の形態1を図に基づいて説明する。図1,2において同一番号は図3,4と同一部品を示す。図2においてはブレ−キなど、機内部品の表示は省略してある。図において12、13はそれぞれ背板部材とロ−タ5の対向面に設けられたラビリンス及びハウジング部材とロ−タの対向面に設けられたラビリンスである。このラビリンスによって、モータ部の空間がブレーキ部空間と仕切られる。背板4はハウジング端面全周をカバ−する1枚板で構成され、ブレ−キ保守のためのアクセス穴4a、4bが図示のごとく所定形状に設けられている。また、このアクセス穴4a、4bはそれぞれカバ−14,15を取付けて塞がれる。
【0011】
以上のように構成することにより、モ−タ部空間がブレ−キ部空間と仕切られると共に、これら2つの空間がツナ車側の外部空間及び背板外側の外部空間とも仕切られることになるので、外部の塵埃や異物またはロ−プ油などの侵入を防ぐことができる。また、ブレ−キ摩耗粉がモ−タ内部に侵入することを防止できる。
【0012】
実施の形態2.
次に、実施の形態2を図1及び図2に基づき説明する。図1において16はハウジング5の椀状底面に設けられた吸気口、5dはロ−タ5のツナ車部内径側に形成されたフィンであり、17はツナ車部端面とハウジングとの間に設けられた通風スペ−スである。実施の形態1ではモ−タをラビリンス構造でハウジング、背板、カバ−及び椀状ロ−タの底面部位で取り囲み、外気に対する遮蔽性を上げた。一方、運転時に機内に発生する熱の放散は悪くなるので、モ−タやブレ−キの巻線の温度上昇が許容値を超える恐れがある。実施の形態2の構成によれば、ロ−タの回転によってフィン  のファンアクションが生じハウジング吸気口  より吸引された空気が前記通風スペ−ス17を通って図示の矢印の向きに流れてロ−タの椀状底面部及びハウジングの椀状底面部を冷却する。
【0013】
その結果、機内の空気が冷却されて、コイルの温度上昇を改善する事が可能となる。
【図面の簡単な説明】
【図1】この発明の実施の形態1を示す内部構造図である。
【図2】この発明の実施の形態1及び2を示す正面図である。
【図3】従来のエレベ−タ用巻上機を示す内部構造図である。
【図4】従来のエレベ−タ用巻上機の正面図である。
【符号の説明】
1 ハウジング、2 電機子、3 ボルト、4 背板、5 ロータ、6 磁石、7 固定軸、8 ブレーキ、9 速度検出器、10 開口部、11 ロープ、12 ラビリンス、13 ラビリンス、14 カバー、15 カバー、16 吸気口。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an elevator hoist.
[0002]
[Prior art]
FIGS. 3 and 4 show a conventional hoist disclosed in, for example, Japanese Patent Application Laid-Open No. 12-289954. In FIG. 4, reference numeral 1 denotes a bowl-shaped housing to which an armature 2 of a motor having a coil is mounted on the inner periphery thereof, and a back plate 4 is mounted by bolts 3. Reference numeral 5 denotes a bowl-shaped rotor, which is formed with a groove 5a on one side to form a tuna wheel portion, and a magnet 6 is mounted on the other outer peripheral surface to form a field portion of the motor. . The bowl-shaped bottom disk portion 5b of the rotor 5 has no hole, and the space on both sides of the disk is partitioned. A fixed shaft 7 passes through the center of the rotor 5 via a bearing, and the rotor 5 rotates by the torque generated by the motor. Reference numeral 5c denotes an inner peripheral surface of the rotor 5 on the magnet side, and a brake lining 8a is pressed against the inner peripheral surface to generate a braking force. Reference numeral 8 denotes a brake housed in the inner space of the rotor, which is fixed to the back plate 4. The detailed structure of the brake is not directly related to the present invention, and the description is omitted.
[0003]
FIG. 4 is a view of the conventional hoisting machine as viewed from the back plate side, and the same reference numerals denote the same parts as in FIG. In FIG. 4, reference numeral 9 denotes a speed detector which is housed in a space provided inside the brake and outputs a rotation signal of the rotor 5. The back plate 4 is fixed vertically to the housing 1 with bolts 3, and a brake is attached to a surface on the inside of the machine. For maintenance of the brake, both sides of the back plate are cut into a predetermined shape as shown in the figure so that the inside of the machine can be accessed. Reference numeral 10 denotes an opening of the housing 1, through which a rope 11 is hung on a tuna wheel.
[0004]
[Problems to be solved by the invention]
In the conventional hoisting machine, the back plate 4 mainly has a mechanical function only for holding the brake and the fixed shaft, and a portion unnecessary mechanically has a structure in which the portion is mechanically cut off as much as possible. For this reason, the motor and the brake were exposed to the outside air. Elevator hoists are often used from the construction stage of a building, so they are exposed to dust and foreign matter such as cement powder, steel swarf, welding spatter, etc. There was a risk of damage and / or the accumulation of dust inside the machine, resulting in an accident such as a decrease in insulation resistance and a short circuit. In addition, oil is impregnated in the rope, and the oil is scattered by the rotational centrifugal force of the tuna wheel and adheres to the motor winding in the machine, or goes around to the sliding surface of the brake. There was a risk of inviting a malfunction.
[0005]
Further, abrasion powder is generated due to sliding between the brake lining and the inner peripheral surface of the rotor, which may enter the motor and adhere to the coil, resulting in insulation deterioration and the like.
[0006]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and improves the shielding performance of the hoist from the outside air and the isolation of the motor and the brake, and also reduces the temperature rise that accompanies it. It is an object to provide a means for suppressing this.
[0007]
[Means for Solving the Problems]
An elevator hoist according to the present invention is integrally provided with a bowl-shaped housing having a motor armature attached to an inner periphery thereof, a tuna wheel portion disposed in an inner space thereof, and a motor field portion. It comprises a bowl-shaped rotor formed, a brake housed in the inner space of the bowl-shaped rotor, and a speed detector, and comprises a back plate attached to an opening of the bowl-shaped housing. ,
A labyrinth is formed at a predetermined position on the outer peripheral portion of the bowl-shaped rotor and the position facing the housing member, and at a predetermined position on the outer peripheral portion of the bowl-shaped rotor and at a position facing the back plate member.
[0008]
An elevator hoist according to the present invention includes a bowl-shaped housing having an armature of a motor mounted on an inner periphery thereof, a tuna wheel portion disposed in an inner space thereof, and a field portion of the motor. A back plate provided with an integrally formed bowl-shaped rotor, a brake housed in an inner space of the bowl-shaped rotor, and a speed detector, and attached to an opening of the bowl-shaped housing; Consisting of
An access hole for maintenance is provided in the back plate, and a cover for closing the access hole is attached to the back plate to completely close the bowl-shaped housing, and a predetermined position on the outer peripheral portion of the bowl-shaped rotor and the housing member. Labyrinths are formed at opposing positions and at predetermined positions on the outer peripheral portion of the bowl-shaped rotor and opposing positions of the back plate member.
[0009]
In the elevator hoist according to the present invention, a hole is formed on the side of the bowl-shaped housing on the side opposite to the back plate, and fins are provided on the side of the bowl-shaped rotor on the side opposite to the brake, and the bowl-shaped rotor is provided. A ventilation space is provided between the motor-side end surface of the tuna wheel integrally formed with the rotor and the inner surface of the housing.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. 1 and 2, the same reference numerals indicate the same parts as in FIGS. In FIG. 2, the display of in-machine parts such as brakes is omitted. In the drawing, reference numerals 12 and 13 denote labyrinths provided on the surface of the rotor 5 facing the back plate member and labyrinths provided on the surface of the rotor facing the housing member. The labyrinth divides the space of the motor unit from the space of the brake unit. The back plate 4 is formed of a single plate that covers the entire periphery of the housing end surface, and has access holes 4a and 4b for brake maintenance in a predetermined shape as shown in the figure. The access holes 4a and 4b are covered with covers 14 and 15, respectively.
[0011]
With the above configuration, the motor space is separated from the brake space, and these two spaces are also separated from the external space on the side of the tuna wheel and the external space outside the back plate. In addition, it is possible to prevent intrusion of external dust, foreign matter or rope oil. Further, it is possible to prevent the abrasion powder from entering the motor.
[0012]
Embodiment 2 FIG.
Next, a second embodiment will be described with reference to FIGS. In FIG. 1, reference numeral 16 denotes an intake port provided on the bowl-shaped bottom surface of the housing 5, 5d denotes a fin formed on the inner side of the rotor 5 of the rotor 5 and 17 denotes a space between the end face of the rotor and the housing. It is a ventilation space provided. In the first embodiment, the motor is surrounded by the housing, the back plate, the cover, and the bottom portion of the bowl-shaped rotor in a labyrinth structure, thereby increasing the shielding performance against the outside air. On the other hand, since the heat generated inside the machine during operation is dissipated poorly, the temperature rise of the motor and the windings of the brake may exceed an allowable value. According to the configuration of the second embodiment, the fan action of the fins is caused by the rotation of the rotor, and the air sucked in from the housing air inlet flows through the ventilation space 17 in the direction of the arrow shown in the drawing to move the rotor. The bowl-shaped bottom of the housing and the bowl-shaped bottom of the housing are cooled.
[0013]
As a result, the air inside the machine is cooled, and the temperature rise of the coil can be improved.
[Brief description of the drawings]
FIG. 1 is an internal structure diagram showing Embodiment 1 of the present invention.
FIG. 2 is a front view showing Embodiments 1 and 2 of the present invention.
FIG. 3 is an internal structural view showing a conventional elevator hoist.
FIG. 4 is a front view of a conventional elevator hoist.
[Explanation of symbols]
Reference Signs List 1 housing, 2 armature, 3 bolt, 4 back plate, 5 rotor, 6 magnet, 7 fixed shaft, 8 brake, 9 speed detector, 10 opening, 11 rope, 12 labyrinth, 13 labyrinth, 14 cover, 15 cover , 16 Inlet.

Claims (3)

内周にモ−タの電機子を取り付けた椀状のハウジングと、その内部空間に配置されツナ車部とモ−タの界磁部を備えて一体に形成された椀状のロ−タと、椀状ロ−タの内部空間に収納されたブレ−キと、速度検出器とを備え、椀状ハウジングの開口部に取り付けられた背板とからなるエレベータ用巻上機において、
椀状ロ−タの外周部の所定位置とハウジング部材の対向する位置、および椀状ロ−タの外周部の所定位置と背板部材の対向する位置にラビリンスを形成したことを特徴とするエレベ−タ用巻上機。
A bowl-shaped housing having a motor armature mounted on the inner periphery thereof, and a bowl-shaped rotor disposed in the inner space and integrally formed with a tuna wheel portion and a motor field portion. An elevator hoist comprising a brake housed in an inner space of a bowl-shaped rotor, a speed detector, and a back plate attached to an opening of the bowl-shaped housing;
A labyrinth is formed at a predetermined position on the outer periphery of the bowl-shaped rotor and at a position facing the housing member, and at a predetermined position on the outer periphery of the bowl-shaped rotor and at a position facing the back plate member. -Hoisting machine for
内周にモ−タの電機子を取り付けた椀状のハウジングと、その内部空間に配置されツナ車部とモ−タの界磁部を備えて一体に形成された椀状のロ−タと、椀状ロ−タの内部空間に収納されたブレ−キと、速度検出器とを備え、椀状ハウジングの開口部に取り付けられた背板とからなるエレベータ用巻上機において、
前記背板に保守用のアクセス穴を設け、このアクセス穴を閉塞するカバーを前記背板に取り付けて椀状ハウジングを全面閉塞すると共に、椀状ロ−タの外周部の所定位置とハウジング部材の対向する位置、および椀状ロ−タの外周部の所定位置と背板部材の対向する位置にラビリンスを形成したことを特徴とするエレベ−タ用巻上機。
A bowl-shaped housing having a motor armature mounted on the inner periphery thereof, and a bowl-shaped rotor disposed in the inner space and integrally formed with a tuna wheel portion and a motor field portion. An elevator hoist comprising a brake housed in an inner space of a bowl-shaped rotor, a speed detector, and a back plate attached to an opening of the bowl-shaped housing;
An access hole for maintenance is provided in the back plate, and a cover for closing the access hole is attached to the back plate to completely close the bowl-shaped housing, and a predetermined position on the outer peripheral portion of the bowl-shaped rotor and the housing member. An elevator hoist, wherein labyrinths are formed at opposing positions and at predetermined positions on the outer periphery of the bowl-shaped rotor and at positions opposing the back plate member.
椀状ハウジングの反背板側の側面に穴を空け、椀状ロ−タの反ブレ−キ側の側面にフィンを設けると共に、椀状ロ−タに一体に形成されたツナ車のモ−タ側端面とハウジング内側面との間に通風スペ−スを設けたことを特徴とする請求項1または2に記載のエレベ−タ用巻上機。A hole is formed in the side surface of the bowl-shaped housing on the side opposite to the back plate, fins are provided on the side of the bowl-shaped rotor on the side of the anti-brake side, and the motor of the tuna wheel integrally formed with the bowl-shaped rotor is provided. 3. An elevator hoist according to claim 1, wherein a ventilation space is provided between the end surface on the side of the elevator and the inner surface of the housing.
JP2002240089A 2002-08-21 2002-08-21 Winding machine for elevator Pending JP2004075353A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007129839A (en) * 2005-11-04 2007-05-24 Fuji Electric Fa Components & Systems Co Ltd Brake-incorporated rotating electric machine
JP2009298558A (en) * 2008-06-16 2009-12-24 Meidensha Corp Hoisting machine for flat type elevator
JP2012140193A (en) * 2010-12-28 2012-07-26 Mitsubishi Electric Corp Hoisting machine for elevator
JP2013147322A (en) * 2012-01-19 2013-08-01 Mitsubishi Electric Corp Elevator winding machine
JP2014150691A (en) * 2013-02-04 2014-08-21 Mitsubishi Electric Corp Rotor and hoisting machine of elevator
AT510358B1 (en) * 2010-09-10 2015-07-15 Traktionssysteme Austria Gmbh PERMANENT MAGNETIC RUDDER ELECTRIC MACHINE
JP2016124628A (en) * 2014-12-26 2016-07-11 株式会社日立製作所 Hoist and elevator
JP2017050908A (en) * 2015-08-31 2017-03-09 株式会社日立製作所 Rotary electric machine, elevator winch employing the same, and elevator
JP2017145085A (en) * 2016-02-16 2017-08-24 株式会社日立製作所 Elevator device
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007129839A (en) * 2005-11-04 2007-05-24 Fuji Electric Fa Components & Systems Co Ltd Brake-incorporated rotating electric machine
JP2009298558A (en) * 2008-06-16 2009-12-24 Meidensha Corp Hoisting machine for flat type elevator
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