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WO2018216077A1 - Hoist for elevators - Google Patents

Hoist for elevators Download PDF

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Publication number
WO2018216077A1
WO2018216077A1 PCT/JP2017/019052 JP2017019052W WO2018216077A1 WO 2018216077 A1 WO2018216077 A1 WO 2018216077A1 JP 2017019052 W JP2017019052 W JP 2017019052W WO 2018216077 A1 WO2018216077 A1 WO 2018216077A1
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WO
WIPO (PCT)
Prior art keywords
sheave
hoisting machine
hoist
rotating shaft
support
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Ceased
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PCT/JP2017/019052
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French (fr)
Japanese (ja)
Inventor
順一 多田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to PCT/JP2017/019052 priority Critical patent/WO2018216077A1/en
Publication of WO2018216077A1 publication Critical patent/WO2018216077A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Definitions

  • the present invention relates to a towed elevator hoisting machine that drives a rope wound around a sheave by friction.
  • a conventional hoisting machine attaches a rotating shaft to a sheave and supports a load applied to the sheave via bearings and bearing bases arranged on both sides of the rotating shaft (see, for example, Patent Document 1).
  • the present invention has been made to solve the above-described problems, and reduces the load applied to the rotating shaft of the hoisting machine and the member that supports the rotating shaft, and the rotating shaft and the rotating shaft of the hoisting machine. It is possible to increase the load resistance of the hoisting machine without increasing the load resistance of the member that supports the sheave, and to replace the sheave shaft and bearings without removing the load on the sheave. An elevator hoisting machine that can be obtained is obtained.
  • An elevator hoist includes a hoisting machine base, a motor fixed to the hoisting machine base, a rotating shaft connected to the output shaft of the motor, a sheave attached to the rotating shaft, and a leash
  • the present invention can reduce the load applied to the rotating shaft of the hoisting machine and the member supporting the rotating shaft by receiving the load applied to the sheave with a separate member.
  • the load resistance of the hoisting machine can be increased without increasing the load resistance of the supporting member.
  • the rotary shaft and bearings of the sheave can be exchanged without removing the load applied to the sheave.
  • FIG. 1 is a schematic cross-sectional view of an elevator hoist according to Embodiment 1 as viewed from the side. It is the schematic diagram which looked at the elevator hoist by Embodiment 1 from the front. It is the figure which looked at the winding machine for elevators by Embodiment 2 from the front.
  • FIG. 1 is a schematic diagram showing an elevator apparatus 100 in which an elevator hoist 1 (hereinafter referred to as “hoist 1”) according to Embodiment 1 of the present invention is arranged.
  • FIG. 2 is the schematic diagram which looked at the winding machine 1 by Embodiment 1 from the front.
  • FIG. 3 is a schematic cross-sectional view of the hoist 1 according to the first embodiment as viewed from the side.
  • the elevator apparatus 100 includes a hoistway 110 having an entrance 120, a car 130 disposed in the hoistway 110, and a machine room 140 formed on the upper part of the hoistway 110.
  • the hoisting machine base 10 is disposed in the machine room 140, and the hoisting machine 1 is fixed on the hoisting machine base 10.
  • a deflecting wheel 50 is disposed in the machine room 140, and the rope 20 is wound around the sheave 30 and the deflecting wheel 50.
  • a car 130 is connected to one end of the rope 20.
  • a counterweight 60 is connected to the other end of the rope 20.
  • the car 130 and the counterweight 60 are suspended in the hoistway 110 by the rope 20 and are raised and lowered by the hoisting machine 1.
  • the hoisting machine 1 includes a hoisting machine base 10, a hoisting machine motor 40 disposed on the hoisting machine base 10, and a sheave 30 connected to the hoisting machine motor 40. And a sheave support device 70 attached to the hoisting machine base 10.
  • a rope 20 is wound around 30 sheaves.
  • the hoisting machine motor 40 has a rotating shaft 41, a rotor 43 fixed to the rotating shaft 41, and a stator 42 disposed on the outer periphery of the rotor 43.
  • the sheave 30 is fixed to the sheave rotating shaft 31 together with the braking device 90.
  • the sheave rotary shaft 31 is connected to the rotary shaft 41 of the hoist motor 40 by a coupling 80 and is cantilevered by the bearing 81 of the rotary shaft 41.
  • the hoisting machine 1 includes a support column 70b, a rotating shaft 70c rotatably attached to the supporting column 70b, and a support roller 70a fixed to the rotating shaft 70c.
  • Four sheave support devices 70 are provided. As shown in FIG. 3, each sheave support device 70 rotatably supports both ends of the rotating shaft 70c by bearings (not shown) attached to the two columns 70b.
  • Two support rollers 70 a are fixed to the rotary shaft 70 c, and the rolling surface of each support roller 70 a abuts the outer periphery of the sheave 30 and receives a load applied to the sheave 30.
  • the load applied to the sheave 30 is received by the support rollers 70a included in the four sheave support devices 70.
  • the sheave rotary shaft 31 and the bearing of the sheave 30 can be exchanged without removing the load applied to the sheave 30.
  • the hoist 1 when the load applied to the car 130 is increased, the load applied to the bearing 81 that supports the rotating shaft 41 of the hoist motor 40 is increased, the rotation of the rotor 43 becomes irregular, and the movement of the car 130 is unstable. It may become. Thus, even if the load applied to the car 130 increases, the hoist 1 according to the first embodiment receives the load applied to the car 130 by the sheave support device 70 via the sheave 30. Therefore, the load applied to the bearing 81 that supports the rotating shaft 41 of the hoisting machine motor 40 does not increase.
  • the load applied to the hoisting machine motor 40 rotating shaft 41 and the bearing 81 that supports the rotating shaft 41 can be reduced, and the winding load can be reduced without increasing the load resistance of the rotating shaft 41 and the bearing 81 that supports the rotating shaft 41.
  • the load capacity of the upper machine 1 can be increased.
  • each support roller 70a may be formed of wear-resistant metal, resin, or the like.
  • the rolling surface of the support roller 70a may be coated with a coating material that improves wear resistance, hard rubber having wear resistance, or the like.
  • the number of sheave support devices 70 is not limited to this.
  • the number of sheave support devices 70 may be two, or may be five or more.
  • the two support rollers 70a of the sheave support device 70 are attached to one rotating shaft 70c, the number of the support rollers 70a is not limited to this.
  • three or more may be attached to one rotating shaft 70c, and the support roller 70a may be one wide roller.
  • the rotating shaft 70c and the support roller 70a may be formed integrally.
  • the hoisting machine 1 of Embodiment 1 has been arrange
  • positioning location of the hoisting machine 1 is not restricted to this.
  • the elevator hoisting machine 1 may be arranged in an elevator apparatus without a machine room.
  • FIG. FIG. 4 is a diagram showing an elevator hoist 2 (hereinafter referred to as “hoist 2”) according to Embodiment 2 of the present invention.
  • the hoisting machine 2 according to the second embodiment is different from the first embodiment in the form of a sheave support device 71.
  • Other configurations are the same as those in the first embodiment.
  • the hoisting machine 2 has four sheave support devices 71.
  • the sheave support device 71 includes a support 71b, a rotation shaft 71c that is rotatably supported by the support 71b, and a support roller 71a that is fixed to the rotation shaft 71c.
  • Each sheave support device 71 has an elevating mechanism (not shown) that moves each rotating shaft 71c up and down independently.
  • a shown in FIG. 4 shows the sheave support device 71 in a state where the rotary shaft 71c is lowered by the lifting mechanism. At this time, the support roller 71a attached to the rotating shaft 71c is lowered together with the rotating shaft 71c and separated from the outer peripheral surface of the sheave 30.
  • the support roller 71 a of one sheave support device 71 is separated from the outer peripheral surface of the sheave 30, the support roller 71 a of the other three sheave support devices 71 causes the The load applied to the vehicle 30 is supported.
  • the rotary shaft 71c to which the support roller 71a is attached is moved up and down independently on each column 71b of the four sheave support devices 71. It has an elevating mechanism. Then, among the four sheave support devices 71, the rotation shaft 71 c of any sheave support device 71 is lowered, and the support roller 71 a attached to the rotation shaft 71 c is separated from the outer peripheral surface of the sheave 30. be able to.
  • the worn or damaged support roller 71a can be separated from the sheave 30.
  • the load applied to the sheave 30 can be distributed and received by the support rollers 71 a of the three sheave support devices 71. Therefore, the worn or damaged support roller 71a can be replaced without removing the rope 20 wound around the sheave 30 and releasing the load applied to the sheave 30.
  • the four sheave support devices 71 are arranged, but the present invention is not limited to this.
  • the number of sheave support devices 71 may be two, or may be five or more.

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

Abstract

This hoist for elevators has: a hoist base; a hoist motor affixed to the hoist base; a sheave shaft connected to the output shaft of the hoist motor; a sheave attached to the sheave shaft; and a plurality of sheave-supporting devices for supporting the periphery of the sheave. Each of the plurality of sheave-supporting devices has a supporting roller, and the supporting rollers support the sheave by causing each roll surface thereof to abut against the periphery of the sheave. The load applied to the sheave is thus received in a distributed manner, enabling a reduction in the load applied to a hoist shaft and a supporting member thereof.

Description

エレベータ用巻上機Elevator hoisting machine

　本発明は、綱車に巻掛けられたロープを摩擦によって駆動する、牽引式のエレベーター用巻上機に関する。 The present invention relates to a towed elevator hoisting machine that drives a rope wound around a sheave by friction.

　従来の巻上機は、綱車に回転軸を取り付け、回転軸の両側に配置した軸受及び軸受台を介して、綱車に加わる荷重を支えている（例えば特許文献１参照）。 A conventional hoisting machine attaches a rotating shaft to a sheave and supports a load applied to the sheave via bearings and bearing bases arranged on both sides of the rotating shaft (see, for example, Patent Document 1).

特開２００２－１９３５７１号公報JP 2002-193571 A

　しかしながら特許文献１に記載された巻上機では、綱車の回転軸が、エレベータの全ての荷重を支持しているため、エレベータにかかる荷重が増大するにつれて、耐荷重の大きい回転軸及び軸受が必要となる。よって、回転軸及び軸受けが大型化し、付随する軸受台などの部材も大型化する。 However, in the hoist described in Patent Document 1, since the rotary shaft of the sheave supports all the loads of the elevator, as the load applied to the elevator increases, the rotary shaft and the bearing having a large load resistance are increased. Necessary. Therefore, the rotating shaft and the bearing are increased in size, and the accompanying members such as a bearing stand are also increased in size.

　また、特許文献１に記載された巻上機では、綱車の回転軸に、エレベータの全ての荷重がかかっているため、回転軸及び回転軸を支持する軸受を交換する際には、綱車にかかっている荷重を取り除く必要がある。ロープ式エレベータの場合、荷重を取り除くためには、かご及び釣合おもりを、昇降路内で支持した状態で、綱車からロープを外す必要があり、回転軸及び軸受けを交換するために必要な作業工数が多くなっていた。 Further, in the hoist described in Patent Document 1, since all loads of the elevator are applied to the rotary shaft of the sheave, the sheave is replaced when the rotary shaft and the bearing that supports the rotary shaft are replaced. It is necessary to remove the load on the surface. In the case of a rope type elevator, in order to remove the load, it is necessary to remove the rope from the sheave with the car and counterweight supported in the hoistway, and it is necessary to replace the rotating shaft and bearing. Work man-hours were increasing.

　本発明は、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、巻上機の回転軸及び回転軸を支持する部材にかかる負荷を軽減するとともに、巻上機の回転軸及び回転軸を支持する部材の耐荷重を高めることなく、巻上機の耐荷重を増加させることができ、さらに、綱車にかかる荷重を取り除くことなく、綱車の回転軸及び軸受などを交換することのできるエレベータ用巻上機を得るものである。 The present invention has been made to solve the above-described problems, and reduces the load applied to the rotating shaft of the hoisting machine and the member that supports the rotating shaft, and the rotating shaft and the rotating shaft of the hoisting machine. It is possible to increase the load resistance of the hoisting machine without increasing the load resistance of the member that supports the sheave, and to replace the sheave shaft and bearings without removing the load on the sheave. An elevator hoisting machine that can be obtained is obtained.

　本発明に係るエレベータ用巻上機は、巻上機台と、巻上機台に固定されるモータと、モータの出力軸に接続される回転軸と、回転軸に取り付けられる綱車と、綱車を支持する支持ローラとを有し、支持ローラは、支持ローラの外周面を綱車の外周に当接させて、綱車を支持する。 An elevator hoist according to the present invention includes a hoisting machine base, a motor fixed to the hoisting machine base, a rotating shaft connected to the output shaft of the motor, a sheave attached to the rotating shaft, and a leash A support roller for supporting the wheel, and the support roller supports the sheave by bringing the outer peripheral surface of the support roller into contact with the outer periphery of the sheave.

　本発明は、綱車にかかる荷重を別部材で受けることにより、巻上機の回転軸及び回転軸を支持する部材にかかる負荷を軽減することができ、巻上機の回転軸及び回転軸を支持する部材の耐荷重を高めることなく、巻上機の耐荷重を増加させることができる。さらに、綱車にかかる荷重を取り除くことなく、綱車の回転軸及び軸受などを交換することができる。 The present invention can reduce the load applied to the rotating shaft of the hoisting machine and the member supporting the rotating shaft by receiving the load applied to the sheave with a separate member. The load resistance of the hoisting machine can be increased without increasing the load resistance of the supporting member. Furthermore, the rotary shaft and bearings of the sheave can be exchanged without removing the load applied to the sheave.

本発明の実施の形態１によるエレベータ用巻上機が配置されたエレベータ装置を示す模式図である。It is a schematic diagram which shows the elevator apparatus by which the elevator hoisting machine by Embodiment 1 of this invention is arrange | positioned. 実施の形態１によるエレベータ用巻上機を側面から見た概略の断面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view of an elevator hoist according to Embodiment 1 as viewed from the side. 実施の形態１によるエレベータ用巻上機を正面から見た模式図である。It is the schematic diagram which looked at the elevator hoist by Embodiment 1 from the front. 実施の形態２によるエレベータ用巻上機を正面から見た図である。It is the figure which looked at the winding machine for elevators by Embodiment 2 from the front.

　以下、本発明のエレベータ用巻上機の好適な実施の形態につき、図面を用いて説明する。 Hereinafter, a preferred embodiment of an elevator hoist according to the present invention will be described with reference to the drawings.

　実施の形態１．
　図１は、本発明の実施の形態１におけるエレベータ用巻上機１（以下、「巻上機１」という。）が配置されたエレベータ装置１００を示す模式図である。また、図２は、実施の形態１による巻上機１を正面から見た模式図である。図３は、実施の形態１による巻上機１を側面から見た概略の断面図である。 Embodiment 1 FIG.
FIG. 1 is a schematic diagram showing an elevator apparatus 100 in which an elevator hoist 1 (hereinafter referred to as “hoist 1”) according to Embodiment 1 of the present invention is arranged. Moreover, FIG. 2 is the schematic diagram which looked at the winding machine 1 by Embodiment 1 from the front. FIG. 3 is a schematic cross-sectional view of the hoist 1 according to the first embodiment as viewed from the side.

　図１に示すように、エレベータ装置１００は、乗降口１２０を有する昇降路１１０と、昇降路１１０内に配置されたかご１３０と、昇降路１１０の上部に形成された機械室１４０とを有する。機械室１４０には巻上機台１０が配置されており、巻上機台１０の上には巻上機１が固定されている。さらに、機械室１４０には、そらせ車５０が配置され、綱車３０とそらせ車５０には、ロープ２０が巻き掛けられている。 As shown in FIG. 1, the elevator apparatus 100 includes a hoistway 110 having an entrance 120, a car 130 disposed in the hoistway 110, and a machine room 140 formed on the upper part of the hoistway 110. The hoisting machine base 10 is disposed in the machine room 140, and the hoisting machine 1 is fixed on the hoisting machine base 10. Further, a deflecting wheel 50 is disposed in the machine room 140, and the rope 20 is wound around the sheave 30 and the deflecting wheel 50.

　ロープ２０一端側には、かご１３０が接続されている。ロープ２０の他端側には、釣合おもり６０が接続されている。かご１３０及び釣合おもり６０は、ロープ２０により昇降路１１０内に吊り下げられており、巻上機１により昇降される。 A car 130 is connected to one end of the rope 20. A counterweight 60 is connected to the other end of the rope 20. The car 130 and the counterweight 60 are suspended in the hoistway 110 by the rope 20 and are raised and lowered by the hoisting machine 1.

　次に、実施の形態１による巻上機１の構成について、図２及び図３を用いて詳しく説明する。 Next, the configuration of the hoisting machine 1 according to Embodiment 1 will be described in detail with reference to FIGS.

　図２に示すように、巻上機１は、巻上機台１０と、巻上機台１０の上に配置された巻上機モータ４０と、巻上機モータ４０に接続された綱車３０と、巻上機台１０に取り付けられた、綱車支持装置７０とを有している。綱車３０車には、ロープ２０が巻き掛けられている。 As shown in FIG. 2, the hoisting machine 1 includes a hoisting machine base 10, a hoisting machine motor 40 disposed on the hoisting machine base 10, and a sheave 30 connected to the hoisting machine motor 40. And a sheave support device 70 attached to the hoisting machine base 10. A rope 20 is wound around 30 sheaves.

　図３に示すように、巻上機モータ４０は、回転軸４１と、回転軸４１に固定されたロータ４３と、ロータ４３の外周に配置されたステータ４２とを有している。綱車３０は、制動装置９０とともに、綱車回転軸３１に固定されている。また、綱車回転軸３１は、カップリング８０により、巻上機モータ４０の回転軸４１に接続され、回転軸４１の軸受８１により、片持ちで支持されている。 As shown in FIG. 3, the hoisting machine motor 40 has a rotating shaft 41, a rotor 43 fixed to the rotating shaft 41, and a stator 42 disposed on the outer periphery of the rotor 43. The sheave 30 is fixed to the sheave rotating shaft 31 together with the braking device 90. Further, the sheave rotary shaft 31 is connected to the rotary shaft 41 of the hoist motor 40 by a coupling 80 and is cantilevered by the bearing 81 of the rotary shaft 41.

　巻上機モータ４０が稼働して、ステータ４２に通電されると、ロータ４３が回転して、回転軸４１が回転する。これにより、回転軸４１に接続された綱車回転軸３１が回転し、綱車３０が回転する。そして、綱車３０に巻き掛けられたロープ２０が駆動され、ロープ２０の一端側に接続されたかご１３０が昇降移動する。 When the hoisting motor 40 is operated and the stator 42 is energized, the rotor 43 rotates and the rotating shaft 41 rotates. Thereby, the sheave rotating shaft 31 connected to the rotating shaft 41 rotates and the sheave 30 rotates. Then, the rope 20 wound around the sheave 30 is driven, and the car 130 connected to one end of the rope 20 moves up and down.

　エレベータ装置１００のかご１３０及び釣合おもり６０が接続されたロープ２０は、綱車３０に巻き掛けられているため、綱車３０には、ロープ２０の重さに加え、かご１３０及び釣合おもり６０の荷重が常に加わっている。よって、エレベータ装置１００のメンテナンス時に、綱車回転軸３１及び綱車回転軸３１を支持する軸受を交換する場合には、綱車３０にかかっている荷重を取り除かなければならない。 Since the rope 20 to which the car 130 and the counterweight 60 of the elevator apparatus 100 are connected is wound around the sheave 30, the car 130 and the counterweight are added to the sheave 30 in addition to the weight of the rope 20. A load of 60 is always applied. Therefore, when exchanging the sheave rotary shaft 31 and the bearing that supports the sheave rotary shaft 31 during maintenance of the elevator apparatus 100, the load applied to the sheave 30 must be removed.

　そこで、実施の形態１による巻上機１では、図２に示すように、支柱７０ｂと、支柱７０ｂに回転可能に取り付けられた回転軸７０ｃと、回転軸７０ｃに固定された支持ローラ７０ａからなる綱車支持装置７０を４つ有している。図３に示すように、各綱車支持装置７０は、２つの支柱７０ｂに取り付けられた、図示しない軸受けにより、回転軸７０ｃの両端部を回転可能に支持している。そして、回転軸７０ｃには、２つの支持ローラ７０ａが固定されており、各支持ローラ７０ａの転動面は、綱車３０の外周に当接して、綱車３０にかかる荷重を受けている。 Therefore, in the hoisting machine 1 according to the first embodiment, as shown in FIG. 2, the hoisting machine 1 includes a support column 70b, a rotating shaft 70c rotatably attached to the supporting column 70b, and a support roller 70a fixed to the rotating shaft 70c. Four sheave support devices 70 are provided. As shown in FIG. 3, each sheave support device 70 rotatably supports both ends of the rotating shaft 70c by bearings (not shown) attached to the two columns 70b. Two support rollers 70 a are fixed to the rotary shaft 70 c, and the rolling surface of each support roller 70 a abuts the outer periphery of the sheave 30 and receives a load applied to the sheave 30.

　このように構成された実施の形態１の巻上機１によれば、綱車３０にかかる荷重を、４つの綱車支持装置７０が有する各支持ローラ７０ａによって受けている。これにより、綱車３０にかかる荷重を取り除くことなく、綱車３０の綱車回転軸３１及び軸受の交換をすることができる。 According to the hoist 1 of the first embodiment configured as described above, the load applied to the sheave 30 is received by the support rollers 70a included in the four sheave support devices 70. Thereby, the sheave rotary shaft 31 and the bearing of the sheave 30 can be exchanged without removing the load applied to the sheave 30.

　また、かご１３０にかかる荷重が大きくなると、巻上機モータ４０の回転軸４１を支持する軸受８１にかかる負荷が大きくなり、ロータ４３の回転が不規則になって、かご１３０の移動が不安定になる場合がある。このように、かご１３０にかかる荷重が大きくなった場合であっても、実施の形態１による巻上機１は、かご１３０にかかる荷重を、綱車３０を介して綱車支持装置７０で受けているため、巻上機モータ４０の回転軸４１を支持する軸受８１にかかる負荷が増大しない。よって、巻上機モータ４０回転軸４１及び回転軸４１を支持する軸受８１にかかる負荷を軽減することができ、回転軸４１及び回転軸４１を支持する軸受８１の耐荷重を高めることなく、巻上機１の耐荷重を増加させることができる。 Further, when the load applied to the car 130 is increased, the load applied to the bearing 81 that supports the rotating shaft 41 of the hoist motor 40 is increased, the rotation of the rotor 43 becomes irregular, and the movement of the car 130 is unstable. It may become. Thus, even if the load applied to the car 130 increases, the hoist 1 according to the first embodiment receives the load applied to the car 130 by the sheave support device 70 via the sheave 30. Therefore, the load applied to the bearing 81 that supports the rotating shaft 41 of the hoisting machine motor 40 does not increase. Therefore, the load applied to the hoisting machine motor 40 rotating shaft 41 and the bearing 81 that supports the rotating shaft 41 can be reduced, and the winding load can be reduced without increasing the load resistance of the rotating shaft 41 and the bearing 81 that supports the rotating shaft 41. The load capacity of the upper machine 1 can be increased.

　ここで、各支持ローラ７０ａは、耐摩耗性を有する金属、樹脂などにより形成するとよい。また、支持ローラ７０ａの転動面には、耐摩耗性を向上させるコーティング材、又は耐摩耗性を有する硬質ゴムなどで被覆を施してもよい。 Here, each support roller 70a may be formed of wear-resistant metal, resin, or the like. In addition, the rolling surface of the support roller 70a may be coated with a coating material that improves wear resistance, hard rubber having wear resistance, or the like.

　なお、実施の形態１の巻上機１では、４つの綱車支持装置７０を配置していたが、綱車支持装置７０の数は、これに限るものではない。例えば綱車支持装置７０の数は、２つであってもよいし、５つ以上であってもよい。また、綱車支持装置７０の支持ローラ７０ａは、１つの回転軸７０ｃに２つ取り付けていたが、支持ローラ７０ａの数は、これに限るものではない。例えば、１つの回転軸７０ｃに、３つ以上取り付けてもよいし、支持ローラ７０ａを、１つの幅広のローラとしてもよい。さらに、回転軸７０ｃと支持ローラ７０ａは一体に形成してもよい。 Although the four sheave support devices 70 are arranged in the hoist 1 of the first embodiment, the number of sheave support devices 70 is not limited to this. For example, the number of sheave support devices 70 may be two, or may be five or more. Moreover, although the two support rollers 70a of the sheave support device 70 are attached to one rotating shaft 70c, the number of the support rollers 70a is not limited to this. For example, three or more may be attached to one rotating shaft 70c, and the support roller 70a may be one wide roller. Further, the rotating shaft 70c and the support roller 70a may be formed integrally.

　また、実施の形態１の巻上機１は、エレベータ装置１００の昇降路１１０に設けられた機械室１４０に配置していたが、巻上機１の配置場所は、これに限るものではない。例えば、エレベータ用巻上機１は、機械室レスのエレベータ装置に配置してもよい。 Moreover, although the hoisting machine 1 of Embodiment 1 has been arrange | positioned in the machine room 140 provided in the hoistway 110 of the elevator apparatus 100, the arrangement | positioning location of the hoisting machine 1 is not restricted to this. For example, the elevator hoisting machine 1 may be arranged in an elevator apparatus without a machine room.

　実施の形態２．
　図４は、本発明の実施の形態２におけるエレベータ用巻上機２（以下、「巻上機２」という。）を示す図である。実施の形態２による巻上機２は、綱車支持装置７１の形態が実施の形態１とは異なる。他の構成は、実施の形態１と同様である。 Embodiment 2. FIG.
FIG. 4 is a diagram showing an elevator hoist 2 (hereinafter referred to as “hoist 2”) according to Embodiment 2 of the present invention. The hoisting machine 2 according to the second embodiment is different from the first embodiment in the form of a sheave support device 71. Other configurations are the same as those in the first embodiment.

　図４に示すように、実施の形態２による巻上機２は、４つの綱車支持装置７１を有している。綱車支持装置７１は、支柱７１ｂと、支柱７１ｂに回転可能に支持された回転軸７１ｃと、回転軸７１ｃに固定された支持ローラ７１ａとを有している。 As shown in FIG. 4, the hoisting machine 2 according to the second embodiment has four sheave support devices 71. The sheave support device 71 includes a support 71b, a rotation shaft 71c that is rotatably supported by the support 71b, and a support roller 71a that is fixed to the rotation shaft 71c.

　各綱車支持装置７１は、それぞれの回転軸７１ｃを独立して上下に移動させる、図示しない昇降機構を有している。図４に示すＡは、この昇降機構により、回転軸７１ｃを下降させた状態の綱車支持装置７１を示している。このとき、回転軸７１ｃに取り付けられた支持ローラ７１ａは、回転軸７１ｃとともに下降して、綱車３０の外周面から離間する。４つの綱車支持装置７１のうち、１つの綱車支持装置７１の支持ローラ７１ａが綱車３０の外周面から離間した状態では、他の３つの綱車支持装置７１の支持ローラ７１ａにより、綱車３０にかかる荷重が支持される。 Each sheave support device 71 has an elevating mechanism (not shown) that moves each rotating shaft 71c up and down independently. A shown in FIG. 4 shows the sheave support device 71 in a state where the rotary shaft 71c is lowered by the lifting mechanism. At this time, the support roller 71a attached to the rotating shaft 71c is lowered together with the rotating shaft 71c and separated from the outer peripheral surface of the sheave 30. Of the four sheave support devices 71, when the support roller 71 a of one sheave support device 71 is separated from the outer peripheral surface of the sheave 30, the support roller 71 a of the other three sheave support devices 71 causes the The load applied to the vehicle 30 is supported.

　このように構成された、実施の形態２による巻上機２によれば、４つの綱車支持装置７１の各支柱７１ｂに、支持ローラ７１ａが取り付けられた回転軸７１ｃを独立して上下に移動させる、昇降機構を有している。そして、４つの綱車支持装置７１のうち、任意の綱車支持装置７１の回転軸７１ｃを下降させて、その回転軸７１ｃに取り付けられた支持ローラ７１ａを、綱車３０の外周面から離間させることができる。 According to the hoisting machine 2 configured as described above according to the second embodiment, the rotary shaft 71c to which the support roller 71a is attached is moved up and down independently on each column 71b of the four sheave support devices 71. It has an elevating mechanism. Then, among the four sheave support devices 71, the rotation shaft 71 c of any sheave support device 71 is lowered, and the support roller 71 a attached to the rotation shaft 71 c is separated from the outer peripheral surface of the sheave 30. be able to.

　これにより、４つの綱車支持装置７１の支持ローラ７１ａのうちの１つが摩耗又は破損した場合に、摩耗又は破損した支持ローラ７１ａだけを綱車３０から離間させることができる。そして、３つの綱車支持装置７１の支持ローラ７１ａにより、綱車３０にかかる荷重を分散して受けることができる。よって、綱車３０に巻き掛けられたロープ２０を取り外して、綱車３０にかかる荷重を解放させることなく、摩耗又は破損した支持ローラ７１ａの交換をすることができる。 Thus, when one of the support rollers 71a of the four sheave support devices 71 is worn or damaged, only the worn or damaged support roller 71a can be separated from the sheave 30. The load applied to the sheave 30 can be distributed and received by the support rollers 71 a of the three sheave support devices 71. Therefore, the worn or damaged support roller 71a can be replaced without removing the rope 20 wound around the sheave 30 and releasing the load applied to the sheave 30.

　なお、実施の形態２の綱車支持装置７１における回転軸７１ｃの図示しない昇降機構には、油圧式のジャッキ、ねじ機構などを用いるとよい。実施の形態２の巻上機２では、４つの綱車支持装置７１を配置していたが、これに限るものではない。例えば綱車支持装置７１は、２つであってもよいし、５つ以上であってもよい。 In addition, it is good to use a hydraulic jack, a screw mechanism, etc. for the raising / lowering mechanism (not shown) of the rotating shaft 71c in the sheave support device 71 of the second embodiment. In the hoisting machine 2 of the second embodiment, the four sheave support devices 71 are arranged, but the present invention is not limited to this. For example, the number of sheave support devices 71 may be two, or may be five or more.

　１，２　巻上機（エレベータ用巻上機）、１０　巻上機台、２０　ロープ、３０　綱車、３１　綱車回転軸、４０　巻上機モータ、４１　回転軸（出力軸）、４２　ステータ、４３　ロータ、５０　そらせ車、６０　釣合いおもり、７０，７１　綱車支持装置、７０ａ，７１ａ　支持ローラ、７０ｂ、７１ｂ　支柱、７０ｃ，７１ｃ　回転軸、８０　カップリング、８１　軸受、９０　制動装置、１００　エレベータ装置、１１０　昇降路、１２０　乗降口、１３０　かご、１４０　機械室。 1, 2 hoisting machine (elevator hoisting machine), 10 hoisting machine stand, 20 rope, 30 sheave, 31 sheave rotary shaft, 40 hoisting motor, 41 rotary shaft (output shaft), 42 stator, 43 rotor, 50 deflecting wheel, 60 counterweight, 70, 71 sheave support device, 70a, 71a support roller, 70b, 71b strut, 70c, 71c rotating shaft, 80 coupling, 81 bearing, 90 braking device, 100 elevator device , 110 hoistway, 120 entrance, 130 car, 140 machine room.

Claims (2)

　巻上機台と、
　前記巻上機台に固定される巻上機モータと、
　前記巻上機モータの出力軸に接続される綱車回転軸と、
　前記綱車回転軸に取り付けられる綱車とを有するエレベータ用巻上機であって、
　前記綱車の外周を支持する複数の綱車支持装置を有し、
　前記複数の綱車支持装置は、それぞれ支持ローラを有し、
　各前記支持ローラは、それぞれの転動面を前記綱車の外周に当接させて、
　前記綱車を支持する、
　エレベータ用巻上機。 A hoisting machine stand;
A hoisting motor fixed to the hoisting machine base;
A sheave rotary shaft connected to the output shaft of the hoist motor;
An elevator hoisting machine having a sheave attached to the sheave rotating shaft,
A plurality of sheave support devices for supporting the outer periphery of the sheave;
Each of the plurality of sheave support devices has a support roller,
Each of the support rollers abuts the rolling surface of the sheave on the outer periphery of the sheave,
Supporting the sheave,
Elevator hoisting machine. 　前記複数の綱車支持装置は、それぞれ、
　前記支持ローラが取り付けられた回転軸を、独立して昇降させる昇降機構を有する、
　請求項１に記載のエレベータ用巻上機。 The plurality of sheave support devices are respectively
An elevating mechanism that independently elevates and lowers the rotation shaft to which the support roller is attached;
The elevator hoist according to claim 1.
PCT/JP2017/019052 2017-05-22 2017-05-22 Hoist for elevators Ceased WO2018216077A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51141958A (en) * 1975-05-17 1976-12-07 Greifzug Hebezeugbau Gmbh Driving disk driving device
JPH08239182A (en) * 1995-03-02 1996-09-17 Toshiba Elevator Eng Kk Elevator hoist
JP2006143469A (en) * 2004-10-20 2006-06-08 Mitsubishi Electric Corp Hoisting machine
US20170088400A1 (en) * 2014-05-14 2017-03-30 Otis Elevator Company Traction geared machine for elevator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51141958A (en) * 1975-05-17 1976-12-07 Greifzug Hebezeugbau Gmbh Driving disk driving device
JPH08239182A (en) * 1995-03-02 1996-09-17 Toshiba Elevator Eng Kk Elevator hoist
JP2006143469A (en) * 2004-10-20 2006-06-08 Mitsubishi Electric Corp Hoisting machine
US20170088400A1 (en) * 2014-05-14 2017-03-30 Otis Elevator Company Traction geared machine for elevator

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