WO2005019085A1 - Thin hoist for elevator - Google Patents

Thin hoist for elevator Download PDF

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Publication number
WO2005019085A1
WO2005019085A1 PCT/JP2003/010553 JP0310553W WO2005019085A1 WO 2005019085 A1 WO2005019085 A1 WO 2005019085A1 JP 0310553 W JP0310553 W JP 0310553W WO 2005019085 A1 WO2005019085 A1 WO 2005019085A1
Authority
WO
WIPO (PCT)
Prior art keywords
main shaft
rotating body
base
bearing
hoist
Prior art date
Application number
PCT/JP2003/010553
Other languages
French (fr)
Japanese (ja)
Inventor
Shuki Hamaguchi
Kenji Inoue
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to EP03818283A priority Critical patent/EP1657207A4/en
Priority to CNB038210282A priority patent/CN100369798C/en
Priority to JP2005508184A priority patent/JP4439470B2/en
Priority to PCT/JP2003/010553 priority patent/WO2005019085A1/en
Publication of WO2005019085A1 publication Critical patent/WO2005019085A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B66B11/0438—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with a gearless driving, e.g. integrated sheave, drum or winch in the stator or rotor of the cage motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/12—Driving gear incorporating electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
    • B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/24—Operating devices
    • B66D5/30—Operating devices electrical

Definitions

  • the present invention relates to a thin-type hoist used in a machine room-less elevator, and achieves simplification of the structure and realization of a thin and lightweight body.
  • the present invention relates to a thin hoist for an elevator. book
  • a thin hoist described in Japanese Patent Application Laid-Open No. 2000-289954 is known. Have been.
  • the main rope is wound around the drive sheave. Then, the drive sheave is rotated by the stator windings and the armature, and the main rope is driven by the frictional force, so that the car and the counterweight are moved up and down in opposite directions.
  • the electromagnet is released and the spring force of the brake spring is transmitted to the braking surface via the brake arm and the spherical seat; the brake, and the hoist is stopped. I have.
  • the conventional thin-type winding machine is configured as described above, many parts are required, and each component is machined with high precision in order to reduce weight due to the combination of components and to reduce manufacturing errors. Or assemble it, which increased costs.
  • the thickness of the hoist leads to an increase in the hoistway flat area. was there.
  • the present invention solves such a conventional problem.
  • the structure is simplified, the number of components is reduced, and the thickness in the width direction is reduced, so that the thickness and the weight are reduced.
  • the objective is to obtain a thin-type hoisting machine for elevators with a reduced hoistway plane area.
  • FIG. 1 is a front view showing a thin hoist for an elevator according to Embodiment 1 of the present invention.
  • FIG. 2 is a cross-sectional view showing a thin hoist for an elevator according to Embodiment 1 of the present invention.
  • FIG. 3 is an enlarged cross-sectional view of the bearing part of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a front view showing a thin type hoisting machine for an elevator in Embodiment 1 of the present invention
  • FIG. 2 is a diagram showing a thin type hoisting machine for an elevator in Embodiment 1 of the present invention.
  • FIG. 3 is an enlarged sectional view of the bearing portion of FIG.
  • a base body 202 configured to be thin in the axial direction accommodates a part of a rotating body 219 described later on the outer periphery and forms an opening edge portion 2 that forms a housing space for the stator 218. And a bottom surface 204 that is almost flush with the tip of the opening edge portion 203.
  • a bearing support portion 205 of a bearing 240 for rotatably supporting the main shaft 217 is provided at a central portion of the base 202. That is, the bearing support portion 205 that supports the main shaft 217 is connected to the bottom surface 204 of the base 202. Opening on the outer periphery of substrate 202 Has a stator 218 provided with a stator winding.
  • the bowl-shaped rotating body 219 is arranged so that a part thereof is fitted into the base body 202, thereby making the entire hoist thin.
  • the rotating body 2 19 has a drive sheave 220 integrally formed on the outer peripheral surface opposite to the bottom surface 204 of the base body 20 and is fitted to the outside of the flange portion 2 17 a of the main shaft 2 17.
  • a bearing support portion 205 cantilevered from the base body 202 and a rotating body 2 19 integrated with the drive sheave 220 supported by the bearing 240 mounted therein.
  • the rotating body 219 and the base body 202 are mounted close to each other, so that a hoisting machine configured to be thin in the axial direction is obtained.
  • the fastening joint between the rotating body 2 19 and the main shaft 2 17 has a mounting surface for the main shaft 2 17 between the rotating body 2 19 and the base body 202.
  • the structure is such that the rotating body 219 can be attached and detached. At the time of assembling or replacing the rotating body 219, it can be easily performed simply by removing the screw that has been fastened.
  • a portion which is formed integrally with the drive sheave 220 and has a diameter larger than the outer diameter of the drive sheave on the opening edge side of the rotating body 2 19 is the opening edge portion 203 of the base body 202.
  • the rotor 22 is provided on the outer peripheral surface of the large diameter portion. This rotor 2 21 is arranged to face the stator 2 18.
  • the main shaft 2-17 is provided with a bearing support portion 20 integrally formed at the center of the bottom surface 204 of the base 202 arranged in parallel with the rib surface 220 a of the rotating body 2 19. Supported by 5.
  • a bearing stopper 205a for determining the position of the outer ring of the bearing 240 is provided at the end of the bearing support portion 205.
  • the main shaft 2 17 is provided with a bearing inner ring stopper 2 17 a for positioning the inner ring of the bearing 240.
  • the bearing 240 has a nut 241 for fixing the inner ring of the bearing 240 to the main shaft 217 and a nut 241 for fixing the outer ring of the bearing 240 to the bearing support 205.
  • the relationship is set. It is necessary to fix the inner and outer rings of the bearing 240, but when assembling the hoist, insert the bearing 240 between the main shaft 2 17 and the inner diameter of the bearing support portion 205, The inner ring side of 240 is fixed with a bearing nut 241, and the outer ring side is fixed with a bearing retainer 242. Both of these assembling operations can be performed from the opposite side of the sheave without reversing the hoist every time the screws are tightened, and the assembling time can be reduced.
  • the electromagnetic brake 222 is formed integrally with fields 222 a of electromagnets arranged on the left and right.
  • the electromagnetic brake 2 2 2 includes an electromagnet mater 2 2 2 b, a screw rod 2 2 2 c fixed to the armature 2 2 2 b and having a spherical end at the tip, and a screw rod 2 2 2 and a spherical seat 2 2 2 d that makes spherical contact with the spherical surface of c.
  • the brake 2 2 6 that comes into contact with the braking surface 2 9 1 of the rotating body 2 1 9 during braking of the brakes is attached to the threaded rod 2 2 2 c by the leaf spring 2 2 2 e attached to this brake. The contact is maintained.
  • a cut-out portion 202 is provided at the position of the base 202 corresponding to the position where the brake shoe 226 of the rotating body 219 is disposed, and the cut-off portion 202 is applied to the brake 226 during braking. Acts as a stopper to hold the load. That is, the play gear 2 26 is pressed against the braking surface 29 1 by the brake spring 2 25 to generate a braking torque. At this time, a force is generated in the brake shoe 226 in the tangential direction of the braking surface 291, but this force is borne by the cutout portion 202a of the base body 202.
  • the brake spring 2 25 moves the armature 2 2 b and the brake 1 2 6 6 linearly using the notch 2 0 2 a of the base 2 as a guide.
  • the structure is called a direct acting type. This direct-acting feature has excellent cost and reliability because of its simple structure. Also, there is an advantage that the brake torque value does not change depending on the rotation direction even when only one of the left and right brakes is operated.
  • Oil seal 2 4 3 between bearing support 205 and main shaft 211 Is provided to prevent oil supplied to the bearing 240 from entering the braking surface 219 of the brake.
  • a main rope 2 12 is wound around the drive sheave 220, and although not shown, a basket and a counterweight are respectively connected to both ends thereof.
  • the thin hoist for an elevator configured as described above includes a bearing support portion 205 close to the driving sheave 220 with a large load, and a base body 20 supporting the bearing support portion.
  • the load applied to the bearing support portion 205 is reduced despite the support structure of the main shaft 217 being a cantilever type.
  • the bearing support is disposed inside (inside) the drive sheave. Therefore, the functional configuration is equivalent to that of the conventional hoisting machine, and the main ropes 2 1 2 that suspend the basket and the counterweight are wound around the drive sheave 2 20 by the electric motor that uses the stator and the rotor.
  • a is fixed to the bottom surface 204 of the base 202 as an integral structure, and the load applied to the brake shoe 1-226 during braking is held by the cutout portion 202 a of the base 202
  • the number of parts can be reduced.
  • the reduction in the number of parts simplifies man-hours and maintenance, and allows the hoist to be made thinner.
  • the thin hoist for an elevator in accordance with the present invention can reduce the number of components constituting the hoist, thereby enabling cost reduction.
  • it is possible to reduce the thickness and weight it is possible to increase the degree of freedom of the installation location, and to further reduce the plane space of the hoistway.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

A thin hoist for an elevator capable of being reduced in thickness and weight by reducing the number of component parts to reduce the lateral thickness thereof, capable of increasing the degree of freedom of installation place, and capable of reducing the area of a hoistway in plan view, comprising a hoist base body (202), a main shaft (217) mounted in the base body, a rotating body (219) pivotally supported on the main shaft, a drive pulley (220) formed in the rotating body, a stator (218) mounted in the base body, an armature (221) disposed on the outer periphery of the rotating body opposite to the stator to form a motor in combination with the stator, a braking surface (291) formed on the rotating body having a diameter larger than the outside dimension of the drive pulley, and a brake (222) disposed opposite to the braking surface and pressed by the braking surface for braking operation. A base body bottom surface (204) connected to a bearing support part (205) supporting the main shaft of the rotating body and the drive pulley are disposed in proximity to each other so that the main shaft of the rotating body can be cantilevered on the bearing support part of the base body.

Description

エレべ一夕用薄形卷上機  Thin type winding machine for Elebe overnight
技術分野 Technical field
この発明は、 機械室レスエレべ一夕に使用される薄形巻上機に関する ものであり、 構造の簡素化を図るとともに、 薄型化と軽量化を実現した 明  The present invention relates to a thin-type hoist used in a machine room-less elevator, and achieves simplification of the structure and realization of a thin and lightweight body.
エレべ一夕用薄形巻上機に関する。 書 The present invention relates to a thin hoist for an elevator. book
背景技術 Background art
従来の機械室レスエレべ一夕に使用されている薄形卷上機としては、 例えば、 日本特開 2 0 0 0 - 2 8 9 9 5 4号公報に記載された薄形卷上 機が知られている。 この薄形巻上機においては、 主索が駆動綱車に巻き 掛けられている。 そして、 固定子巻線と電機子とによって駆動綱車が回 転し、 摩擦力によって主索が駆動されて、 かご及び釣合いおもりを互い に反対方向へ昇降させる。 エレべ一夕のかごが所定のフロアに到着する と、 電磁石を開放してブレーキばねのばね力をブレーキ腕、 球面座； ブ レーキシュ一を介して制動面に伝え、 卷上機を停止させている。  As a conventional thin hoist used in a machine room-less elevator, for example, a thin hoist described in Japanese Patent Application Laid-Open No. 2000-289954 is known. Have been. In this thin hoist, the main rope is wound around the drive sheave. Then, the drive sheave is rotated by the stator windings and the armature, and the main rope is driven by the frictional force, so that the car and the counterweight are moved up and down in opposite directions. When the car arrives at the predetermined floor, the electromagnet is released and the spring force of the brake spring is transmitted to the braking surface via the brake arm and the spherical seat; the brake, and the hoist is stopped. I have.
従来の薄形卷上機では、 以上のように構成されているので、 多くの部 品を必要とし、 構成部品の組み合わせによる重量化、 製作誤差を少なく するために各構成部品を高精度に加工したり、 組み立てたりしなければ ならず、コストアップの原因となっていた。また全体の厚みも厚くなり、 昇降路壁とかごとの間に巻上機を設置する機械室レス方式のエレべ一夕 では、巻上機の厚さが昇降路平面積の拡大に繋がるという課題があった。  Since the conventional thin-type winding machine is configured as described above, many parts are required, and each component is machined with high precision in order to reduce weight due to the combination of components and to reduce manufacturing errors. Or assemble it, which increased costs. In addition, in the machine room-less elevator where a hoist is installed between the hoistway wall and the cage, the thickness of the hoist leads to an increase in the hoistway flat area. was there.
発明の開示 この発明は、 このような従来の問題点を解決するもので、 構造を簡素 化して構成部品点数を削減するとともに、 幅方向の厚みを薄くして、 薄 型化、 軽量化を図り、 設置場所の自由度を向上させ、 昇降路平面積を縮 小したエレべ一夕用薄形卷上機を得ることを目的とする。 図面の簡単な説明 Disclosure of the invention The present invention solves such a conventional problem. The structure is simplified, the number of components is reduced, and the thickness in the width direction is reduced, so that the thickness and the weight are reduced. The objective is to obtain a thin-type hoisting machine for elevators with a reduced hoistway plane area. Brief Description of Drawings
第 1図は、 この発明の実施の形態 1におけるエレべ一タ用薄形巻上機 を示す正面図である。  FIG. 1 is a front view showing a thin hoist for an elevator according to Embodiment 1 of the present invention.
第 2図は、 この発明の実施の形態 1におけるエレべ一タ用薄形巻上機 を示す断面図である。  FIG. 2 is a cross-sectional view showing a thin hoist for an elevator according to Embodiment 1 of the present invention.
第 3図は、 第 2図の軸受部分の拡大断面図である。 発明を実施するための最良の形態  FIG. 3 is an enlarged cross-sectional view of the bearing part of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
この発明をより詳細に説明するために、 添付の図面に従ってこれを説 明する。  The present invention will be described in more detail with reference to the accompanying drawings.
第 1図はこの発明の実施の形態 1におけるエレべ一夕用薄形巻上機を 示す正面図、 第 2図はこの発明の実施の形態 1におけるエレべ一夕用薄 形卷上機を示す断面図、 第 3図は第 2図の軸受部分の拡大断面図であ る。  FIG. 1 is a front view showing a thin type hoisting machine for an elevator in Embodiment 1 of the present invention, and FIG. 2 is a diagram showing a thin type hoisting machine for an elevator in Embodiment 1 of the present invention. FIG. 3 is an enlarged sectional view of the bearing portion of FIG.
図において、 軸方向に薄くなるように構成された基体 2 0 2は、 外周 に後述する回転体 2 1 9の一部を収容するとともに固定子 2 1 8の収容 空間を形成した開口縁部 2 0 3を有し、 この開口縁部 2 0 3の先端とほ ぼ同一面となる底面 2 0 4を有している。 基体 2 0 2の中心部には主軸 2 1 7を回転支持する軸受 2 4 0の軸受支持部 2 0 5が設けられている。 すなわち、 主軸 2 1 7を支持する軸受支持部 2 0 5は基体 2 0 2の底面 2 0 4に接続されている。 基体 2 0 2の外周の開口緣部 2 0 3の内面に は固定子 2 1 8が固定子卷線と共に設けられている。 椀状の回転体 2 1 9は、 基体 2 0 2内にその一部が嵌り込むように配置されることによつ て、 巻上機全体を薄くしている。 回転体 2 1 9は基体 2 0 の底面 2 0 4と反対側の外周面に駆動綱車 2 2 0を一体で構成しており、 主軸 2 1 7のフランジ部 2 1 7 aの外側に嵌合結合されている。 すなわち、 基体 2 0 2から片持ち形成された軸受支持部 2 0 5と、 この中に装着された 軸受 2 4 0により支持される駆動綱車 2 2 0と一体化された回転体 2 1 9により構成され、 この回転体 2 1 9と基体 2 0 2が接近して取り付け られるので、 軸方向に薄形に構成された卷上機が得られる。 また、 回転 体 2 1 9と主軸 2 1 7の締結接合部は、 主軸 2 1 7の取付面が回転体 2 1 9と基体 2 0 2の間に入っているため、 第 2図の左側から回転体 2 1 9を着脱できる構成となり、 組み立て時或いは回転体 2 1 9の交換は、 締結しているねじを取り外すだけで簡単に行うことができる。 回転体 2 1 9の開口縁部側にあって駆動綱車 2 2 0と一体で構成され駆動綱車の 外径よりも大きな直径を持つ部分は、 基体 2 0 2の開口縁部 2 0 3内に 収容されており、大径部分の外周面には回転子 2 2 1が設けられている。 この回転子 2 2 1は固定子 2 1 8と対向して配置されている。 主軸- 2 1 7は、 回転体 2 1 9のリブ面 2 2 0 aに近接して平行に配置された基体 2 0 2の底面 2 0 4の中心部に一体構成された軸受支持部 2 0 5で支持 されている。 軸受支持部 2 0 5の端部には、 軸受 2 4 0の外輪の位置を 決める軸受ストッパー 2 0 5 aが設けられている。 主軸 2 1 7には、 軸 受 2 4 0の内輪を位置決めする軸受内輪ストッパー 2 1 7 aが設けられ ている。 軸受 2 4 0には、 軸受 2 4 0の内輪を主軸 2 1 7へ固定するた めの軸受用ナツト 2 4 1と、 軸受 2 4 0の外輪を軸受支持部 2 0 5へ固 定するための軸受押さえ 2 4 2とが設けられており、 軸受用ナット 2 4 1、 軸受押さえ 2 4 2の固定により、 主軸 2 1 7と基体 2 0 2との位置 関係が設定される。 軸受 2 4 0は、 内外輪を固定する必要があるが、 卷 上機の組立時には、 主軸 2 1 7及び軸受支持部 2 0 5の内径部の間に軸 受 2 4 0を挿入し、 軸受 2 4 0の内輪側は軸受用ナット 2 4 1、 外輪側 は軸受押さえ 2 4 2にて各々固定する。 これらの組み立ては、 ねじ締め の度に巻上機を反転させることなく両方とも反綱車側から行うことがで き、 組み立て時間の短縮が可能である。 電磁ブレーキ 2 2 2は、 左右に 配置される電磁石のフィ一ルド 2 2 2 aを一体として構成されている。 この電磁ブレーキ 2 2 2は、 電磁石用ァ一マチヤ 2 2 2 bと、 このァー マチヤ 2 2 2 bに固定されかつ先端に球面を有するねじ棒 2 2 2 cと、 このねじ棒 2 2 2 cの球面に球面接触する球面座 2 2 2 dとを備えてい る。 ブレ一キの制動時に回転体 2 1 9の制動面 2 9 1に接触するブレー キシュ一 2 2 6は、 このブレーキシュ一に取り付けた板ばね 2 2 2 eに よりねじ棒 2 2 2 cに接触保持させる構成としている。 回転体 2 1 9の ブレーキシュ一 2 2 6が配置される位置に相当する基体 2 0 2の位置に 切欠部 2 0 2 aが設けられ、 ブレーキの制動時にブレ一キシュ一 2 2 6 にかかる負荷を保持するストッパの役目を果たす。 すなわち、 プレーギ シユー 2 2 6がブレーキばね 2 2 5により制動面 2 9 1に押し付けちれ、 ブレーキトルクを発生する。 この時、 ブレーキシュ一 2 2 6には、 制動 面 2 9 1の接線方向に力が発生するが、 この力は基体 2 0 2の切欠部 2 0 2 aが負担することになる。 ブレーキ用電磁石を開放すると、 ブレー キばね 2 2 5によりァ一マチヤ 2 2 2 b及びブレ一キシュ一 2 2 6は基 体 2 0 2の切欠部 2 0 2 aをガイドとして直線的に移動する構造は直動 式と呼ばれている。 この直動式の特徴は、 構造が簡単なため、 コスト的 にも、 信頼性にも優れている。 また、 左右のブレーキの一方のみ動作し た場合でも、 回転方向によりプレーキトルク値が変わらないという利点 がある。 軸受支持部 2 0 5と主軸 2 1 7との間にはオイルシール 2 4 3 が設けられ、 軸受 2 4 0に補給された油がブレーキの制動面 2 1 9へ進 入するのを防止している。 駆動綱車 2 2 0には主索 2 1 2が巻き掛けら れ、 図示は省略してあるが、 その両端にかごと、 釣合いおもりがそれぞ れ連結されている。 In the drawing, a base body 202 configured to be thin in the axial direction accommodates a part of a rotating body 219 described later on the outer periphery and forms an opening edge portion 2 that forms a housing space for the stator 218. And a bottom surface 204 that is almost flush with the tip of the opening edge portion 203. A bearing support portion 205 of a bearing 240 for rotatably supporting the main shaft 217 is provided at a central portion of the base 202. That is, the bearing support portion 205 that supports the main shaft 217 is connected to the bottom surface 204 of the base 202. Opening on the outer periphery of substrate 202 Has a stator 218 provided with a stator winding. The bowl-shaped rotating body 219 is arranged so that a part thereof is fitted into the base body 202, thereby making the entire hoist thin. The rotating body 2 19 has a drive sheave 220 integrally formed on the outer peripheral surface opposite to the bottom surface 204 of the base body 20 and is fitted to the outside of the flange portion 2 17 a of the main shaft 2 17. Are joined. That is, a bearing support portion 205 cantilevered from the base body 202 and a rotating body 2 19 integrated with the drive sheave 220 supported by the bearing 240 mounted therein. The rotating body 219 and the base body 202 are mounted close to each other, so that a hoisting machine configured to be thin in the axial direction is obtained. The fastening joint between the rotating body 2 19 and the main shaft 2 17 has a mounting surface for the main shaft 2 17 between the rotating body 2 19 and the base body 202. The structure is such that the rotating body 219 can be attached and detached. At the time of assembling or replacing the rotating body 219, it can be easily performed simply by removing the screw that has been fastened. A portion which is formed integrally with the drive sheave 220 and has a diameter larger than the outer diameter of the drive sheave on the opening edge side of the rotating body 2 19 is the opening edge portion 203 of the base body 202. The rotor 22 is provided on the outer peripheral surface of the large diameter portion. This rotor 2 21 is arranged to face the stator 2 18. The main shaft 2-17 is provided with a bearing support portion 20 integrally formed at the center of the bottom surface 204 of the base 202 arranged in parallel with the rib surface 220 a of the rotating body 2 19. Supported by 5. A bearing stopper 205a for determining the position of the outer ring of the bearing 240 is provided at the end of the bearing support portion 205. The main shaft 2 17 is provided with a bearing inner ring stopper 2 17 a for positioning the inner ring of the bearing 240. The bearing 240 has a nut 241 for fixing the inner ring of the bearing 240 to the main shaft 217 and a nut 241 for fixing the outer ring of the bearing 240 to the bearing support 205. Of the main shaft 2 17 and the base body 2 2 by fixing the bearing nut 2 4 1 and the bearing press 2 4 2 The relationship is set. It is necessary to fix the inner and outer rings of the bearing 240, but when assembling the hoist, insert the bearing 240 between the main shaft 2 17 and the inner diameter of the bearing support portion 205, The inner ring side of 240 is fixed with a bearing nut 241, and the outer ring side is fixed with a bearing retainer 242. Both of these assembling operations can be performed from the opposite side of the sheave without reversing the hoist every time the screws are tightened, and the assembling time can be reduced. The electromagnetic brake 222 is formed integrally with fields 222 a of electromagnets arranged on the left and right. The electromagnetic brake 2 2 2 includes an electromagnet mater 2 2 2 b, a screw rod 2 2 2 c fixed to the armature 2 2 2 b and having a spherical end at the tip, and a screw rod 2 2 2 and a spherical seat 2 2 2 d that makes spherical contact with the spherical surface of c. The brake 2 2 6 that comes into contact with the braking surface 2 9 1 of the rotating body 2 1 9 during braking of the brakes is attached to the threaded rod 2 2 2 c by the leaf spring 2 2 2 e attached to this brake. The contact is maintained. A cut-out portion 202 is provided at the position of the base 202 corresponding to the position where the brake shoe 226 of the rotating body 219 is disposed, and the cut-off portion 202 is applied to the brake 226 during braking. Acts as a stopper to hold the load. That is, the play gear 2 26 is pressed against the braking surface 29 1 by the brake spring 2 25 to generate a braking torque. At this time, a force is generated in the brake shoe 226 in the tangential direction of the braking surface 291, but this force is borne by the cutout portion 202a of the base body 202. When the brake electromagnet is released, the brake spring 2 25 moves the armature 2 2 b and the brake 1 2 6 6 linearly using the notch 2 0 2 a of the base 2 as a guide. The structure is called a direct acting type. This direct-acting feature has excellent cost and reliability because of its simple structure. Also, there is an advantage that the brake torque value does not change depending on the rotation direction even when only one of the left and right brakes is operated. Oil seal 2 4 3 between bearing support 205 and main shaft 211 Is provided to prevent oil supplied to the bearing 240 from entering the braking surface 219 of the brake. A main rope 2 12 is wound around the drive sheave 220, and although not shown, a basket and a counterweight are respectively connected to both ends thereof.
上記のように構成されたエレべ一ター用薄形巻上機は、 負荷の大きい 駆動綱車 2 2 0に近接して軸受支持部 2 0 5と、 この軸受支持部を支え る基体 2 0 2の底面 2 0 4とを配置することにより、 主軸 2 1 7の支持 構成を片持ち式にしたにも拘らず、 軸受支持部 2 0 5にかかる負荷を少 なくしたものである。 また、 軸受支持部が駆動綱車の内部 （内側） に配 置されるものである。 従って、 機能構成は従来の巻上機と同等であり、 固定子と回転子とによる電動機によって、 かごと、 釣合いおもりを懸架 する主索 2 1 2が駆動綱車 2 2 0に巻き掛けられた状態で摩擦力によつ て主索 2 1 2が駆動され、 かごと、 釣合いおもりを互いに反対方向へ昇 降する。 また、 回転体 2 1 9の開口縁部側の大径部内周面に形成された 制動面 2 9 1をブレ一キシュ一 2 2 6により押圧する左右一対のブレー キの電磁石用フィールド 2 2 2 aを一体構成として基体 2 0 2の底面 2 0 4に固定する構成とし、 且つブレーキの制動時にブレーキシュ一- 2 2 6にかかる負荷を基体 2 0 2の切欠き部 2 0 2 aで保持する構成とした ために、 部品点数を削減することができる。 また、 部品点数の削減によ り製造工数、 保守の簡易化が図れ、 巻上機の厚みも更に薄く構成するこ とができる。  The thin hoist for an elevator configured as described above includes a bearing support portion 205 close to the driving sheave 220 with a large load, and a base body 20 supporting the bearing support portion. By arranging the bottom surface 204 of the shaft 2, the load applied to the bearing support portion 205 is reduced despite the support structure of the main shaft 217 being a cantilever type. Further, the bearing support is disposed inside (inside) the drive sheave. Therefore, the functional configuration is equivalent to that of the conventional hoisting machine, and the main ropes 2 1 2 that suspend the basket and the counterweight are wound around the drive sheave 2 20 by the electric motor that uses the stator and the rotor. In this state, the main rope 2 12 is driven by the frictional force, and the car and the counterweight are moved up and down in opposite directions. In addition, a pair of left and right brake electromagnet fields 2, 2 6, which presses a braking surface 2 91 formed on the inner peripheral surface of the large diameter portion on the opening edge side of the rotating body 2 19 with a brake 1 2 6. a is fixed to the bottom surface 204 of the base 202 as an integral structure, and the load applied to the brake shoe 1-226 during braking is held by the cutout portion 202 a of the base 202 With this configuration, the number of parts can be reduced. In addition, the reduction in the number of parts simplifies man-hours and maintenance, and allows the hoist to be made thinner.
産業上の利用可能性 Industrial applicability
以上のように、 この発明にかかるエレべ一夕用薄形巻上機は、 巻上機 を構成する部品点数を削減することができ、 コスト低減が可能となる。 また、 合わせて薄型化、 軽量化が図れるので、 設置場所の自由度を拡大 することができ、 更には昇降路平面スペースの縮小が可能となる。  As described above, the thin hoist for an elevator in accordance with the present invention can reduce the number of components constituting the hoist, thereby enabling cost reduction. In addition, since it is possible to reduce the thickness and weight, it is possible to increase the degree of freedom of the installation location, and to further reduce the plane space of the hoistway.

Claims

請 求 の 範 囲 1 . 基体と、 この基体に設けられた主軸と、 この主軸に枢持されて回 転する回転体と、 この回転体に形成された駆動綱車と、 上記基体に設け られた固定子と、 上記回転体の外周に上記固定子と対向して配置され上 記固定子とによつて電動機を構成する回転子と、 上記駆動綱車の外形よ りも大きい直径の上記回転体に形成された制動面と、 この制動面に対向 して配置され、 制動面に押圧されて制動動作するブレーキとを備えたェ レベータ用巻上機において、 上記回転体の主軸を支持する軸受支持部と 接続した基体底面と駆動綱車を近接して配置し、 上言己回転体の主軸を基 体の軸受支持部で片持ち支持する構成としたことを特徴とするエレべ一 夕用薄形巻上機。  Scope of Claim 1. A base, a main shaft provided on the base, a rotating body pivotally supported by the main shaft, a drive sheave formed on the rotating body, and a drive sheave provided on the base. A stator, which is arranged on the outer periphery of the rotating body so as to face the stator and forms the electric motor with the stator, and the rotation having a diameter larger than the outer shape of the drive sheave. An elevator hoist comprising: a braking surface formed on a body; and a brake disposed opposite to the braking surface and pressed by the braking surface to perform a braking operation, wherein a bearing for supporting a main shaft of the rotating body is provided. The bottom surface of the base connected to the support and the drive sheave are arranged close to each other, and the main shaft of the rotating body is cantilevered by the bearing support of the base. Thin hoist.
2 . 軸受支持部が駆動綱車の内部に配置されていることを特徴とする請 求の範囲第 1項記載のエレべ一夕用薄形巻上機。  2. The thin hoist according to claim 1, wherein the bearing support is disposed inside the drive sheave.
3 . 主軸を支える軸受を、 基体の軸受支持部の端面及び主軸にそれぞれ 設けた軸受位置決めストツバで位置決めし、 軸受の反対向側には軸受用 ナツト及び軸受押さえを配置し、 基体側より軸受を組み立て可能とした ことを特徴とする請求の範囲第 1項記載のエレべ一夕用薄形卷上機。 3. The bearing that supports the main shaft is positioned by the bearing positioning stopper provided on the end face of the bearing support portion of the base and the main shaft, and a nut for the bearing and a bearing retainer are arranged on the opposite side of the bearing. 2. The thin type hoisting machine according to claim 1, wherein the thin type hoisting machine can be assembled.
4 . 基体内部にブレーキを収納し、 基体の軸受支持部にブレーキ用電磁 石を固定し、 基体の回転体の内周部に沿ってブレーキシュ一を格納する 切欠部を設けて、 ブレーキ制動時にブレーキシュ一のストツパとするこ とを特徴とする請求の範囲第 3項記載のエレべ一夕用薄形巻上機。 4. The brake is housed inside the base, the electromagnetic stone for the brake is fixed to the bearing support of the base, and a notch is provided to store the brake shoe along the inner periphery of the rotating body of the base. 4. The thin hoist according to claim 3, wherein the hoist is a stop of the brake shoe.
5 . 左右のブレーキ用電磁石のフィールドを一体構成としたことを特徴 とする請求の範囲第 4項記載のエレべ一夕用薄形巻上機。 5. The thin hoist according to claim 4, wherein the left and right brake electromagnet fields are integrated.
6 . 左右のブレーキの構造を直動式としたことを特徴とする請求の範囲 第 5項記載のエレベータ用薄形巻上機。 6. The thin hoist for an elevator according to claim 5, wherein the structure of the left and right brakes is a direct acting type.
7 . 回転体の主軸との接合部を、 主軸のフランジ部の外側へ配置したこ とを特徴とする請求の範囲第 1項〜請求の範囲第 5項のいずれかに記載 のエレベータ用薄形卷上機。 7. The thin type for an elevator according to any one of claims 1 to 5, wherein a joint portion of the rotating body with the main shaft is arranged outside a flange portion of the main shaft. Hoisting machine.
8 . 基体の軸受支持部外周と主軸の一部との間に、 ブレーキ制動面に油 が進入するのを防止するオイルシールを設けたことを特徴とする請求の 範囲第 7項記載のエレべ一夕用薄形巻上機。  8. The elevator according to claim 7, wherein an oil seal for preventing oil from entering the brake braking surface is provided between an outer periphery of the bearing support portion of the base and a part of the main shaft. A thin hoist for overnight.
PCT/JP2003/010553 2003-08-21 2003-08-21 Thin hoist for elevator WO2005019085A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03818283A EP1657207A4 (en) 2003-08-21 2003-08-21 Thin hoist for elevator
CNB038210282A CN100369798C (en) 2003-08-21 2003-08-21 Thin hoist for elevator
JP2005508184A JP4439470B2 (en) 2003-08-21 2003-08-21 Thin hoisting machine for elevator
PCT/JP2003/010553 WO2005019085A1 (en) 2003-08-21 2003-08-21 Thin hoist for elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/010553 WO2005019085A1 (en) 2003-08-21 2003-08-21 Thin hoist for elevator

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JP (1) JP4439470B2 (en)
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WO2008126835A1 (en) 2007-04-10 2008-10-23 Hitachi, Ltd. Elevator hoist
JP2009067488A (en) * 2007-09-11 2009-04-02 Mitsubishi Electric Corp Brake device for hoisting machine
WO2009044450A1 (en) 2007-10-02 2009-04-09 Mitsubishi Electric Corporation Hoist for elevator and brake system
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JP5347365B2 (en) * 2008-08-08 2013-11-20 株式会社明電舎 Elevator hoisting device
JP5710396B2 (en) * 2011-06-22 2015-04-30 株式会社日立製作所 Elevator hoisting machine
JP2013040033A (en) * 2011-08-19 2013-02-28 Hitachi Ltd Hoisting machine for elevator
JP6475136B2 (en) * 2015-09-29 2019-02-27 株式会社日立製作所 Hoisting machine and elevator

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JP2009067488A (en) * 2007-09-11 2009-04-02 Mitsubishi Electric Corp Brake device for hoisting machine
WO2009044450A1 (en) 2007-10-02 2009-04-09 Mitsubishi Electric Corporation Hoist for elevator and brake system
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CN111712456A (en) * 2018-02-20 2020-09-25 三菱电机株式会社 Auxiliary tool for assembling traction machine and method for assembling traction machine using auxiliary tool for assembling traction machine

Also Published As

Publication number Publication date
EP1657207A1 (en) 2006-05-17
CN1694840A (en) 2005-11-09
JPWO2005019085A1 (en) 2006-10-19
JP4439470B2 (en) 2010-03-24
EP1657207A4 (en) 2009-09-09
CN100369798C (en) 2008-02-20

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