JP2010037094A - Elevator hoist device - Google Patents

Elevator hoist device Download PDF

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Publication number
JP2010037094A
JP2010037094A JP2008205092A JP2008205092A JP2010037094A JP 2010037094 A JP2010037094 A JP 2010037094A JP 2008205092 A JP2008205092 A JP 2008205092A JP 2008205092 A JP2008205092 A JP 2008205092A JP 2010037094 A JP2010037094 A JP 2010037094A
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Prior art keywords
sheave
bearing
shaft
wire rope
insertion portion
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JP5347365B2 (en
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Masayuki Kawaguchi
雅行 川口
Keiichi Korogi
恵一 興梠
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Priority to JP2008205092A priority Critical patent/JP5347365B2/en
Priority to EP09805055.2A priority patent/EP2322464B1/en
Priority to CN200980130659.6A priority patent/CN102112387B/en
Priority to KR1020117005013A priority patent/KR101208904B1/en
Priority to PCT/JP2009/064028 priority patent/WO2010016573A1/en
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    • 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
    • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • 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

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem, wherein the use of a large diameter shaft is required when the sheave width and the sheave load are large, in a conventional hoisting device of a cantilever structure. <P>SOLUTION: This hoisting device 1 of an elevator has a stator 4, formed by installing a stator core 3 on the inner periphery of a frame 2, and a rotor 11, formed by rotatably supporting the shaft 6 attached with a rotor core 5 by first and second brackets 9 and 10 arranged in the frame 2 by first and second bearings 7 and 8, and is constituted, by installing a sheave 12 in an end part projected outside the first bearing 7 of the shaft 6. A rope winding surface 14 for arranging a plurality of rope grooves 13 in a row is formed on the outer periphery of the sheave 12. The sheave 12 has a bearing insertion part 15 for inserting the first bearing 7 into the inner peripheral side of the rope winding surface 14, and the first bearing 7 is inserted inside the bearing insertion part 15. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、エレベータにおいてカゴ等を昇降させるのに使用する巻上装置、特にシャフトにシーブを片持ち支持させた巻上装置に関するものである。   The present invention relates to a hoisting device used for raising and lowering a car or the like in an elevator, and more particularly to a hoisting device in which a sheave is cantilevered on a shaft.

シャフトにシーブを片持ち支持したエレベータの巻上装置として、例えば図６に示すものが知られている。前記エレベータの巻上装置１０１は、フレーム１０２の内周にステータコア１０３を取り付けることにより形成された固定子１０４と、ロータコア１０５を取り付けたシャフト１０６を第１軸受（以下、シーブ側軸受）１０７と第２軸受（以下、反シーブ側軸受）１０８で前記フレームに設けた第１，第２ブラケット１０９，１１０に回転自在に支持することにより形成された回転子１１１と、を備え、前記シャフト１０６の前記シーブ側軸受１０７の外側に突出させた端部にシーブ１１２を取り付けることにより構成されている。   As an elevator hoisting device in which a sheave is cantilevered on a shaft, for example, the one shown in FIG. 6 is known. The elevator hoisting device 101 includes a stator 104 formed by attaching a stator core 103 to an inner periphery of a frame 102, a shaft 106 to which a rotor core 105 is attached, a first bearing (hereinafter referred to as a sheave side bearing) 107 and a first bearing 107. A rotor 111 formed by two bearings (hereinafter referred to as anti-sheave bearings) 108 that are rotatably supported by first and second brackets 109 and 110 provided on the frame, The sheave 112 is configured by attaching a sheave 112 to an end projecting outward from the sheave-side bearing 107.

前記シーブ１１２の外周には複数のワイヤーロープ溝１１３を列設したワイヤーロープ巻取面１１４が形成されている。（例えば、特許文献１参照）。
実開昭５３−５９６３号公報 A wire rope winding surface 114 in which a plurality of wire rope grooves 113 are arranged is formed on the outer periphery of the sheave 112. (For example, refer to Patent Document 1).
Japanese Utility Model Publication No. 53-5963

前記従来のシーブ片持ち支持構造のエレベータの巻上装置１０１にあって、前記ワイヤーロープ巻取面１１４の前記シーブ側軸受１０７の端部からシーブ軸荷重中心（前記ワイヤーロープ巻取面１１４の中心)までの寸法をＡ、前記シーブ側軸受１０７のシーブ側端面から該シーブ側軸受１０７の中心までの寸法をＢ、前記シーブ側軸受１０７のシーブ側端面から前記ワイヤーロープ巻取面１１４の前記シーブ側軸受１０７の端部までの間隔をＣとすると、前記シャフト１０６のオーバーハング寸法Ｄは、
Ｄ＝Ａ＋Ｂ＋Ｃ・・・・・・・・・・・式１
となる。 In the elevator hoisting device 101 having the conventional sheave cantilever support structure, the sheave shaft load center (the center of the wire rope winding surface 114) extends from the end of the sheave-side bearing 107 of the wire rope winding surface 114. ) From the sheave side end surface of the sheave side bearing 107 to the center of the sheave side bearing 107, and from the sheave side end surface of the sheave side bearing 107 to the sheave of the wire rope winding surface 114. When the distance to the end of the side bearing 107 is C, the overhang dimension D of the shaft 106 is
D = A + B + C ... Formula 1
It becomes.

ここで、前記シーブ側軸受１０７と反シーブ側軸受１０８の中心間距離をＥ、シーブ軸荷重：Ｗにより前記シーブ側軸受１０７に作用する力をＬ１、前記反シーブ側軸受１０８に作用する力をＬ２とすると、
Ｌ１＝Ｗ・（Ｄ＋Ｅ）／Ｅ＝Ｗ・（Ａ＋Ｂ＋Ｃ＋Ｅ）／Ｅ・・・式２
Ｌ２＝Ｗ・Ｄ／Ｅ＝Ｗ・（Ａ＋Ｂ＋Ｃ）／Ｅ・・・式３
式２、式３に示す通り、現在の巻上装置の構造では、大きな幅のシーブ１１２が必要な場合、前記寸法Ａが大きくなり、オーバーハング寸法Ｄが大きくなるので、その結果、Ｌ１、Ｌ２が大きくなり、大きな軸受やシャフト、大きなフレームが必要となる。更にその結果、巻上装置の重量が重くなり、コストも高くなるという欠点があった。 Here, the center-to-center distance between the sheave side bearing 107 and the anti-sheave side bearing 108 is E, the force acting on the sheave side bearing 107 due to the sheave shaft load: W is L1, and the force acting on the anti-sheave side bearing 108 is L2
L1 = W · (D + E) / E = W · (A + B + C + E) / E Equation 2
L2 = W · D / E = W · (A + B + C) / E Equation 3
As shown in Expressions 2 and 3, in the current hoisting device structure, when the sheave 112 having a large width is required, the dimension A increases and the overhang dimension D increases. As a result, L1, L2 Requires a large bearing, shaft, and large frame. As a result, the hoisting device is heavy and the cost is high.

また、シーブ幅が大きくなった場合でも、図６の寸法Ｄの増大に比例して寸法Ｅを大きくすることにより、大きな軸受や太いシャフトを使用しないでも済むようにすることも可能であるが、その分、フレームやシャフトが長くなり、巻上装置の外形寸法が大きくなり設置スペースが増大する。加えて、重量が重くなり、コストも高くなるという欠点がある。   Further, even when the sheave width is increased, it is possible to eliminate the use of a large bearing or a thick shaft by increasing the dimension E in proportion to the increase of the dimension D in FIG. Accordingly, the frame and the shaft become longer, the outer dimensions of the hoisting device become larger, and the installation space increases. In addition, there is a disadvantage that the weight is increased and the cost is increased.

更に、シーブ軸荷重：Ｗによりシャフトには曲げモーメント：Ｍが作用する。   Further, a bending moment M acts on the shaft due to the sheave shaft load W.

Ｍ＝Ｗ・Ｄ＝Ｗ・（Ａ＋Ｂ＋Ｃ）・・・式４
式４の通り幅の広いシーブでは寸法Ａが大きくなり、曲げモーメント：Ｍも大きくなる。従って、シーブ軸荷重：Ｗに伴うシャフトの撓みによるシーブの傾きの問題を解決するには、軸径の太いシャフトを使用する必要があり、重量が重くなり、コストも高くなるという欠点がある。 M = W · D = W · (A + B + C) Equation 4
As shown in Equation 4, in a wide sheave, the dimension A increases and the bending moment M increases. Therefore, in order to solve the problem of the sheave inclination due to the deflection of the shaft due to the sheave shaft load: W, it is necessary to use a shaft having a large shaft diameter, which has the disadvantage that the weight is increased and the cost is increased.

現在、シーブ幅やシーブ荷重が大きい場合には図７に示すように、シャフト１２１を支持している軸受１２２，１２３の間にシーブ１２４を取り付けた両持ち構造の巻上装置１２０が採用されているが、この構造は、シーブを両側で支える構造であるため、巻上装置組立後におけるシーブの後付け及びシーブの交換が容易にできないという欠点がある。   At present, when the sheave width and the sheave load are large, as shown in FIG. 7, a double-supported hoisting device 120 in which a sheave 124 is attached between bearings 122 and 123 that support the shaft 121 is employed. However, since this structure is a structure that supports the sheave on both sides, there is a drawback that it is not easy to retrofit the sheave and replace the sheave after assembling the hoisting device.

本発明の目的は、シーブ幅やシーブ荷重が大きい場合に適用して好適な片持ち構造の巻上装置を提供することにある。   An object of the present invention is to provide a hoisting device having a cantilever structure suitable for application when a sheave width and a sheave load are large.

請求項１の発明は、フレームの内周にステータコアを取り付けることにより形成された固定子と、ロータコアを取り付けたシャフトを第１，第２軸受で前記フレームに設けた第１，第２ブラケットに回転自在に支持することにより形成された回転子と、を備え、前記シャフトの前記第１軸受の外側に突出させた端部にシーブを取り付けたエレベータの巻上装置において、
前記シーブの外周側に、複数のワイヤーロープ溝を列設したワイヤーロープ巻取面を設け、該ワイヤーロープ巻取面の内周側に前記第１軸受を挿入する軸受挿入部を設け、該軸受挿入部内に前記第１軸受を挿入し、該第１軸受のシーブ軸荷重中心側の端面を、前記シーブ軸荷重中心よりも内側（前記第２軸受側）に位置させた。 According to the first aspect of the present invention, the stator formed by attaching the stator core to the inner periphery of the frame and the shaft to which the rotor core is attached are rotated to the first and second brackets provided on the frame by the first and second bearings. An elevator hoisting apparatus comprising: a rotor formed by freely supporting; and a sheave attached to an end of the shaft that protrudes outside the first bearing;
A wire rope winding surface in which a plurality of wire rope grooves are arranged is provided on the outer peripheral side of the sheave, and a bearing insertion portion for inserting the first bearing is provided on the inner peripheral side of the wire rope winding surface. The first bearing was inserted into the insertion portion, and the end surface on the sheave shaft load center side of the first bearing was positioned on the inner side (the second bearing side) than the sheave shaft load center.

請求項２の発明は、フレームの内周にステータコアを取り付けることにより形成された固定子と、ロータコアを取り付けたシャフトを第１，第２軸受で前記フレームに設けた第１，第２ブラケットに回転自在に支持することにより形成された回転子と、を備え、前記シャフトの前記第１軸受の外側に突出させた端部にシーブを取り付けたエレベータの巻上装置において、
前記シーブの外周側に複数のワイヤーロープ溝を列設したワイヤーロープ巻取面を設け、該ワイヤーロープ巻取面の内周側に前記第１軸受を挿入する軸受挿入部を設け、該軸受挿入部内に前記第１軸受を挿入し、該第１軸受の幅方向の中心を、前記シーブ軸荷重中心に位置させた。 According to the second aspect of the present invention, the stator formed by attaching the stator core to the inner periphery of the frame and the shaft to which the rotor core is attached are rotated to the first and second brackets provided on the frame by the first and second bearings. An elevator hoisting apparatus comprising: a rotor formed by freely supporting; and a sheave attached to an end of the shaft that protrudes outside the first bearing;
A wire rope winding surface in which a plurality of wire rope grooves are arranged on the outer peripheral side of the sheave is provided, a bearing insertion portion for inserting the first bearing is provided on the inner peripheral side of the wire rope winding surface, and the bearing insertion The first bearing was inserted into the portion, and the center in the width direction of the first bearing was positioned at the sheave shaft load center.

請求項３の発明は、フレームの内周にステータコアを取り付けることにより形成された固定子と、ロータコアを取り付けたシャフトを第１，第２軸受で前記フレームに設けた第１，第２ブラケットに回転自在に支持することにより形成された回転子と、を備え、前記シャフトの前記第１軸受の外側に突出させた端部にシーブを取り付けたエレベータの巻上装置において、
前記シーブの外周側に複数のワイヤーロープ溝を列設したワイヤーロープ巻取面を設け、該ワイヤーロープ巻取面の内周側に前記第１軸受を挿入する軸受挿入部を設け、該軸受挿入部内に前記第１軸受を挿入し、該第１軸受の幅方向の中心を、前記シーブ軸荷重中心よりも外側（前記シーブ軸荷重中心を境にして反シーブ側軸受と反対側）に位置させた。 According to a third aspect of the present invention, a stator formed by attaching a stator core to the inner periphery of the frame and a shaft to which the rotor core is attached are rotated to first and second brackets provided on the frame by first and second bearings. An elevator hoisting apparatus comprising: a rotor formed by freely supporting; and a sheave attached to an end of the shaft that protrudes outside the first bearing;
A wire rope winding surface in which a plurality of wire rope grooves are arranged on the outer peripheral side of the sheave is provided, a bearing insertion portion for inserting the first bearing is provided on the inner peripheral side of the wire rope winding surface, and the bearing insertion The first bearing is inserted into the portion, and the center in the width direction of the first bearing is positioned outside the sheave shaft load center (on the opposite side of the sheave shaft load center as the boundary from the non-sheave bearing). It was.

（１）請求項１の巻上装置は、シーブのワイヤーロープ巻取面の内周側に設けた軸受挿入部内に第１軸受を挿入し、該第１軸受のシーブ軸荷重中心側の端面を、前記シーブ軸荷重中心よりも前記第２軸受側に位置させたので、図６に示す従来の巻上装置に較べてオーバーハング寸法Ｄを小さくすることができる。その結果、第１軸受に作用する力Ｌ１や、前記第２軸受に作用する力Ｌ２も小さくなり、これら第１，第２軸受、シャフト、フレームの小型軽量化が可能になりコストを削減することが可能になる。更に、シーブ軸荷重：Ｗによる曲げモーメント：Ｍも小さくなり、現在よりも細いシャフトであってもシーブ軸荷重：Ｗによるシャフトの撓みが小さくなり、シーブの傾きを小さくすることができる。
（２）請求項２の巻上装置は、前記第１軸受の幅方向の中心を、前記シーブ軸荷重中心に位置させたので、オーバーハング寸法Ｄをゼロにすることができる。その結果、Ｌ１がシーブ軸荷重：Ｗと同じ値になり、請求項１の場合よりも第１軸受にかかるラジアル荷重を小さくすることができる。また、第２軸受に作用する力Ｌ２は、ゼロとなるので請求項１の場合よりも更に軸受を小さくすることができる。また、シーブ軸荷重：Ｗによる曲げモーメント：Ｍが一切無くなり、シャフトの撓みも全く発生しないので、シャフトの撓みによりシーブの傾きを無くすことができる。加えてシャフトを細く、軽量化することができる。
（３）請求項３の巻上装置は、第１軸受と第２軸受の間でシーブ軸荷重：Ｗを支持するので、図７に示す両持ち構造の巻上装置と同様にシャフトの撓み等を抑制してシーブの傾きを無くして、シーブを安定した状態で支持することができる。加えて、片持ち構造の巻上装置の長所である使い勝手の良さを維持することができる。 (1) In the hoisting device according to claim 1, the first bearing is inserted into the bearing insertion portion provided on the inner peripheral side of the sheave wire rope winding surface, and the end surface of the first bearing on the sheave shaft load center side is formed. Since the sheave shaft load center is located on the second bearing side, the overhang dimension D can be reduced as compared with the conventional hoisting device shown in FIG. As a result, the force L1 acting on the first bearing and the force L2 acting on the second bearing are also reduced, and the first and second bearings, the shaft and the frame can be reduced in size and weight, thereby reducing the cost. Is possible. Further, the bending moment: M due to the sheave shaft load: W is also reduced, and even when the shaft is thinner than the present shaft, the shaft bends due to the sheave shaft load: W is reduced, and the sheave inclination can be reduced.
(2) In the hoisting device according to the second aspect, since the center in the width direction of the first bearing is positioned at the sheave shaft load center, the overhang dimension D can be made zero. As a result, L1 becomes the same value as the sheave shaft load: W, and the radial load applied to the first bearing can be made smaller than in the case of claim 1. Further, since the force L2 acting on the second bearing becomes zero, the bearing can be made smaller than in the case of the first aspect. Further, since the bending moment: M due to the sheave shaft load: W is completely eliminated and the shaft is not bent at all, the inclination of the sheave can be eliminated by the bending of the shaft. In addition, the shaft can be made thinner and lighter.
(3) Since the hoisting device of claim 3 supports the sheave shaft load W between the first bearing and the second bearing, the shaft is bent as in the hoisting device of the double-supported structure shown in FIG. This prevents the sheave from tilting and supports the sheave in a stable state. In addition, the user-friendliness that is an advantage of the cantilevered hoisting device can be maintained.

図１は第１実施例のエレベータの巻上装置１を示す。前記エレベータの巻上装置１は、フレーム２の内周にステータコア３を取り付けることにより形成された固定子４と、ロータコア５を取り付けたシャフト６を第１軸受（以下、シーブ側軸受）７と第２軸受（以下、反シーブ側軸受）８で前記フレーム２に設けた第１，第２ブラケット９，１０に回転自在に支持することにより形成された回転子１１と、を備え、前記シャフト６の前記シーブ軸受７の外側に突出させた端部にシーブ（綱車）１２を取り付けることにより構成されている。   FIG. 1 shows an elevator hoist apparatus 1 according to a first embodiment. The elevator hoisting device 1 includes a stator 4 formed by attaching a stator core 3 to an inner periphery of a frame 2, and a shaft 6 to which a rotor core 5 is attached as a first bearing (hereinafter referred to as a sheave-side bearing) 7 and a first bearing. A rotor 11 formed by two bearings (hereinafter referred to as anti-sheave bearings) 8 that are rotatably supported by first and second brackets 9 and 10 provided on the frame 2. A sheave 12 is attached to the end of the sheave bearing 7 that protrudes outward.

前記シーブ１２の外周には複数のワイヤーロープ溝１３を列設したワイヤーロープ巻取面１４が形成されている。   A wire rope winding surface 14 in which a plurality of wire rope grooves 13 are arranged is formed on the outer periphery of the sheave 12.

前記シーブ１２は、前記ワイヤーロープ巻取面１４の内周側に前記シーブ側軸受７を挿入する軸受挿入部１５を備えていて、該軸受挿入部１５内に前記シーブ側軸受７が挿入されている。   The sheave 12 includes a bearing insertion portion 15 for inserting the sheave-side bearing 7 on the inner peripheral side of the wire rope winding surface 14, and the sheave-side bearing 7 is inserted into the bearing insertion portion 15. Yes.

第１実施例において、前記シーブ側軸受７は、前記軸受挿入部１５内に潜り込んだ位置から、前記シーブ側軸受７のシーブ軸荷重中心側の端面が、前記シーブ軸荷重中心に至るまでの間に位置している。すなわち、シーブ側軸受７とシーブ１２の位置関係を式で示すと２Ｂ＜Ｃ＜Ａにした。   In the first embodiment, the sheave-side bearing 7 extends from the position where it is submerged in the bearing insertion portion 15 until the end surface on the sheave shaft load center side of the sheave-side bearing 7 reaches the sheave shaft load center. Is located. That is, the positional relationship between the sheave-side bearing 7 and the sheave 12 is expressed by a formula 2B <C <A.

上述のように前記シーブ側軸受７を前記軸受挿入部１５内に潜り込ますことにより、図６に示す従来の巻上装置に較べてオーバーハング寸法Ｄを小さくすることができる。その結果、シーブ側軸受７に作用する力Ｌ１や、反シーブ側軸受８に作用する力Ｌ２も小さくなり、これら軸受、シャフト、フレームの小型軽量化が可能になりコストを削減することが可能になる。更に、シーブ軸荷重：Ｗによる曲げモーメント：Ｍも小さくなり、現在よりも細いシャフトであってもシーブ軸荷重：Ｗによるシャフトの撓みが小さくなり、シーブの傾きを小さくすることができる。   As described above, the overhang dimension D can be reduced as compared with the conventional hoisting device shown in FIG. 6 by inserting the sheave-side bearing 7 into the bearing insertion portion 15. As a result, the force L1 acting on the sheave-side bearing 7 and the force L2 acting on the non-sheave-side bearing 8 are also reduced, making it possible to reduce the size and weight of these bearings, shafts, and frames, thereby reducing costs. Become. Further, the bending moment: M due to the sheave shaft load: W is also reduced, so that the shaft bends due to the sheave shaft load: W is reduced even if the shaft is thinner than the current shaft, and the sheave inclination can be reduced.

図２は第２実施例のエレベータの巻上装置１を示す。この実施例においては、前記軸受挿入部１５内に挿入したシーブ側軸受７の幅方向の中心を、前記シーブ軸荷重中心に位置させた。すなわち、シーブ側軸受７とシーブ１２の位置関係を式で示すとＣ＝Ａ＋Ｂにした。他の構成は第１実施例の場合と同じであるので重複する説明は省略する。   FIG. 2 shows an elevator hoist apparatus 1 according to a second embodiment. In this embodiment, the center in the width direction of the sheave-side bearing 7 inserted into the bearing insertion portion 15 is positioned at the sheave shaft load center. That is, the positional relationship between the sheave-side bearing 7 and the sheave 12 is expressed as C = A + B. Other configurations are the same as those in the first embodiment, and thus redundant description is omitted.

上述のように、前記シーブ側軸受７の幅方向の中心を、前記シーブ軸荷重中心に位置させたので、オーバーハング寸法Ｄをゼロにすることができる。その結果、Ｌ１がシーブ軸荷重：Ｗと同じ値になり、請求項１の場合よりもシーブ側軸受７に掛かるラジアル荷重を小さくすることができる。また、反シーブ側軸受８に作用する力Ｌ２は、ゼロとなるので請求項１の場合よりも更に軸受を小さくすることができる。また、シーブ軸荷重：Ｗによる曲げモーメント：Ｍが一切無くなり、シャフトの撓みも全く発生しないので、シャフトの撓みによりシーブの傾きを無くすことができる。加えてシャフトを細く、軽量化することができる。   As described above, since the center in the width direction of the sheave-side bearing 7 is located at the sheave shaft load center, the overhang dimension D can be made zero. As a result, L1 becomes the same value as the sheave shaft load: W, and the radial load applied to the sheave-side bearing 7 can be made smaller than in the case of claim 1. Further, since the force L2 acting on the non-sheave bearing 8 is zero, the bearing can be made smaller than in the case of the first aspect. Further, since there is no bending moment: M due to sheave shaft load: W, and no shaft deflection occurs, the sheave tilt can be eliminated by the shaft deflection. In addition, the shaft can be made thinner and lighter.

図３は第３実施例のエレベータの巻上装置１を示す。この実施例においては、シーブ側軸受７の幅方向の中心を、前記シーブ軸荷重中心の外側（前記シーブ軸荷重中心を境にして反シーブ側軸受８と反対側）に位置させた。すなわち、シーブ側軸受７とシーブ１２の位置関係を式で示すとゼロ＜Ｄにした。   FIG. 3 shows an elevator hoist apparatus 1 according to a third embodiment. In this embodiment, the center of the sheave-side bearing 7 in the width direction is positioned outside the sheave shaft load center (on the opposite side of the sheave shaft load center as the boundary from the sheave shaft load center 8). That is, the positional relationship between the sheave-side bearing 7 and the sheave 12 is expressed as zero <D.

上述のように、シーブ側軸受７と反シーブ側軸受８の間でシーブ軸荷重：Ｗを支持したので、図７に示す両持ち構造の巻上装置と同様にシャフトの撓み等を抑制してシーブの傾きを無くして、シーブを安定した状態で支持することができる。加えて、片持ち構造の巻上装置の長所である使い勝手の良さを維持することができる。   As described above, the sheave shaft load: W is supported between the sheave-side bearing 7 and the anti-sheave-side bearing 8, so that the bending of the shaft or the like is suppressed in the same manner as the both-end support hoisting device shown in FIG. The sheave can be supported in a stable state by eliminating the inclination of the sheave. In addition, the user-friendliness that is an advantage of the cantilevered hoisting device can be maintained.

なお、図１〜図３に示した第１〜第３実施例においては、シャフト６の一端部にシーブ１２を焼き嵌めによって取り付けた場合を示したが、図４、図５に示すように、シャフト６の一端部をシーブ１２に設けたシャフト挿入部１６に挿入して、ナット１７やボルト１８でシャフト６とシーブ１２を結合する構成にしても良い。このようにして結合することによりにシーブ１２の取替え等を容易に行うことができる。   In addition, in the 1st-3rd Example shown in FIGS. 1-3, although the case where the sheave 12 was attached to the one end part of the shaft 6 by shrink fitting was shown, as shown in FIG. 4, FIG. One end portion of the shaft 6 may be inserted into a shaft insertion portion 16 provided on the sheave 12 and the shaft 6 and the sheave 12 may be coupled by a nut 17 or a bolt 18. By joining in this way, the sheave 12 can be easily replaced.

（Ａ）は第１実施例の巻上装置の断面図、（Ｂ）は側面図。(A) is sectional drawing of the winding apparatus of 1st Example, (B) is a side view. （Ａ）は第２実施例の巻上装置の断面図、（Ｂ）は側面図。(A) is sectional drawing of the winding apparatus of 2nd Example, (B) is a side view. （Ａ）は第３実施例の巻上装置の断面図、（Ｂ）は側面図。(A) is sectional drawing of the winding apparatus of 3rd Example, (B) is a side view. シャフトとシーブの結合方法を示す説明図。Explanatory drawing which shows the coupling | bonding method of a shaft and a sheave. シャフトとシーブの結合方法を示す説明図。Explanatory drawing which shows the coupling | bonding method of a shaft and a sheave. （Ａ）は従来の片持ち構造の巻上装置の断面図、（Ｂ）は側面図。(A) is sectional drawing of the winding apparatus of the conventional cantilever structure, (B) is a side view. （Ａ）は従来の両持ち構造の巻上装置の断面図、（Ｂ）は側面図。(A) is sectional drawing of the winding apparatus of the conventional both-ends structure, (B) is a side view.

符号の説明Explanation of symbols

１…エレベータの巻上装置
２…フレーム
３…ステータコア
４…固定子
５…ロータコア
６…シャフト
７…第１軸受(シーブ側軸受）
８…第２軸受(反シーブ側軸受）
９…第１ブラケット
１０…第２ブラケット
１１…回転子
１２…シーブ（綱車）
１３…ワイヤーロープ溝
１４…ワイヤーロープ巻取面
１５…軸受挿入部 DESCRIPTION OF SYMBOLS 1 ... Elevator hoisting device 2 ... Frame 3 ... Stator core 4 ... Stator 5 ... Rotor core 6 ... Shaft 7 ... 1st bearing (sheave side bearing)
8. Second bearing (anti-sheave bearing)
9 ... 1st bracket 10 ... 2nd bracket 11 ... Rotor 12 ... Sheave
13 ... Wire rope groove 14 ... Wire rope winding surface 15 ... Bearing insertion part

Claims (3)

フレームの内周にステータコアを取り付けることにより形成された固定子と、ロータコアを取り付けたシャフトを第１，第２軸受で前記フレームに設けた第１，第２ブラケットに回転自在に支持することにより形成された回転子と、を備え、前記シャフトの前記第１軸受の外側に突出させた端部にシーブを取り付けたエレベータの巻上装置において、
前記シーブは、外周側に複数のワイヤーロープ溝を列設したワイヤーロープ巻取面を備え、該ワイヤーロープ巻取面の内周側に前記第１軸受を挿入する軸受挿入部を備えていて、該軸受挿入部内に前記第１軸受が挿入されていて、
前記軸受挿入部内に挿入した前記第１軸受のシーブ軸荷重中心側の端面を、前記シーブ軸荷重中心の内側に位置させたことを特徴とするエレベータの巻上装置。 Formed by rotatably supporting a stator formed by attaching a stator core to the inner periphery of the frame and a shaft attached with the rotor core to first and second brackets provided on the frame by first and second bearings. An elevator hoisting apparatus, wherein a sheave is attached to an end of the shaft that protrudes outside the first bearing;
The sheave includes a wire rope winding surface in which a plurality of wire rope grooves are arranged on the outer peripheral side, and includes a bearing insertion portion that inserts the first bearing on the inner peripheral side of the wire rope winding surface, The first bearing is inserted into the bearing insertion portion;
An elevator hoisting apparatus, wherein an end surface of the first bearing inserted into the bearing insertion portion on the sheave shaft load center side is positioned inside the sheave shaft load center. フレームの内周にステータコアを取り付けることにより形成された固定子と、ロータコアを取り付けたシャフトを第１，第２軸受で前記フレームに設けた第１，第２ブラケットに回転自在に支持することにより形成された回転子と、を備え、前記シャフトの前記第１軸受の外側に突出させた端部にシーブを取り付けたエレベータの巻上装置において、
前記シーブは、外周側に複数のワイヤーロープ溝を列設したワイヤーロープ巻取面を備え、該ワイヤーロープ巻取面の内周側に前記第１軸受を挿入する軸受挿入部を備えていて、該軸受挿入部内に前記第１軸受が挿入されていて、
前記軸受挿入部内に挿入した前記第１軸受の幅方向の中心を、前記シーブ軸荷重中心に位置させたことを特徴とするエレベータの巻上装置。 Formed by rotatably supporting a stator formed by attaching a stator core to the inner periphery of the frame and a shaft attached with the rotor core to first and second brackets provided on the frame by first and second bearings. An elevator hoisting apparatus, wherein a sheave is attached to an end of the shaft that protrudes outside the first bearing;
The sheave includes a wire rope winding surface in which a plurality of wire rope grooves are arranged on the outer peripheral side, and includes a bearing insertion portion that inserts the first bearing on the inner peripheral side of the wire rope winding surface, The first bearing is inserted into the bearing insertion portion;
The elevator hoisting apparatus characterized in that the center in the width direction of the first bearing inserted into the bearing insertion portion is positioned at the sheave shaft load center. フレームの内周にステータコアを取り付けることにより形成された固定子と、ロータコアを取り付けたシャフトを第１，第２軸受で前記フレームに設けた第１，第２ブラケットに回転自在に支持することにより形成された回転子と、を備え、前記シャフトの前記第１軸受の外側に突出させた端部にシーブを取り付けたエレベータの巻上装置において、
前記シーブは、外周側に複数のワイヤーロープ溝を列設したワイヤーロープ巻取面を備え、該ワイヤーロープ巻取面の内周側に前記第１軸受を挿入する軸受挿入部を備えていて、該軸受挿入部内に前記第１軸受が挿入されていて、
前記軸受挿入部内に挿入した前記第２軸受の幅方向の中心を、前記シーブ軸荷重中心の外側に位置させたことを特徴とするエレベータの巻上装置。 Formed by rotatably supporting a stator formed by attaching a stator core to the inner periphery of the frame and a shaft attached with the rotor core to first and second brackets provided on the frame by first and second bearings. An elevator hoisting apparatus, wherein a sheave is attached to an end of the shaft that protrudes outside the first bearing;
The sheave includes a wire rope winding surface in which a plurality of wire rope grooves are arranged on the outer peripheral side, and includes a bearing insertion portion that inserts the first bearing on the inner peripheral side of the wire rope winding surface, The first bearing is inserted into the bearing insertion portion;
The elevator hoisting apparatus, wherein a center in the width direction of the second bearing inserted into the bearing insertion portion is positioned outside the sheave shaft load center.
JP2008205092A 2008-08-08 2008-08-08 Elevator hoisting device Active JP5347365B2 (en)

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JP2008205092A JP5347365B2 (en) 2008-08-08 2008-08-08 Elevator hoisting device
EP09805055.2A EP2322464B1 (en) 2008-08-08 2009-08-07 Elevator hoist device
CN200980130659.6A CN102112387B (en) 2008-08-08 2009-08-07 Elevator hoist device
KR1020117005013A KR101208904B1 (en) 2008-08-08 2009-08-07 Elevator hoist device
PCT/JP2009/064028 WO2010016573A1 (en) 2008-08-08 2009-08-07 Elevator hoist device

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Publication number Priority date Publication date Assignee Title
WO2015068750A1 (en) 2013-11-07 2015-05-14 株式会社 明電舎 Elevator hoist

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JPS62111889A (en) * 1985-11-11 1987-05-22 株式会社日立製作所 Base structure of elevator winding machine
JP2003104666A (en) 2001-09-28 2003-04-09 Meidensha Corp Hoisting machine and elevator device
WO2005019085A1 (en) * 2003-08-21 2005-03-03 Mitsubishi Denki Kabushiki Kaisha Thin hoist for elevator
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JPS535963U (en) * 1976-07-01 1978-01-19
JPH02133170U (en) * 1981-02-23 1990-11-05
JPS62222991A (en) * 1986-02-24 1987-09-30 オ−チス　エレベ−タ　コムパニ− Modular gearless elevator drive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015068750A1 (en) 2013-11-07 2015-05-14 株式会社 明電舎 Elevator hoist

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