WO2019176106A1 - Drive sheave support device for elevator hoist, and elevator hoist maintenance method - Google Patents

Drive sheave support device for elevator hoist, and elevator hoist maintenance method Download PDF

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Publication number
WO2019176106A1
WO2019176106A1 PCT/JP2018/010597 JP2018010597W WO2019176106A1 WO 2019176106 A1 WO2019176106 A1 WO 2019176106A1 JP 2018010597 W JP2018010597 W JP 2018010597W WO 2019176106 A1 WO2019176106 A1 WO 2019176106A1
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WO
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Prior art keywords
hoisting machine
drive sheave
support
base
main shaft
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PCT/JP2018/010597
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French (fr)
Japanese (ja)
Inventor
勇輝 竹崎
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三菱電機株式会社
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Priority to PCT/JP2018/010597 priority Critical patent/WO2019176106A1/en
Publication of WO2019176106A1 publication Critical patent/WO2019176106A1/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
    • 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 drive sheave support device used during maintenance of an elevator hoist and a maintenance method for the elevator hoist.
  • a support base is arranged directly under the drive sheave.
  • a gap is provided between the outer peripheral surface of the drive sheave and the support base.
  • the present invention has been made to solve the above-described problems, and suppresses bending of the main shaft when the shaft support member is removed, and facilitates attachment / detachment of the shaft support member to the hoisting machine base. It is an object of the present invention to provide a drive sheave support device and a maintenance method for an elevator hoisting machine.
  • a drive sheave support device for an elevator hoisting machine includes a hoisting machine main body, a horizontal main shaft supported by the hoisting machine main body, a driving sheave rotating about the main shaft with respect to the main shaft, and the main shaft
  • a hoisting machine base disposed below the hoisting machine base, and a shaft support member that is detachable from the hoisting machine base and supports the main shaft on the side opposite to the hoisting machine main body with respect to the drive sheave.
  • a drive sheave support device used for an elevator hoisting machine that is installed on a hoisting machine base directly under the drive sheave, and is supported by the support base and moves up and down with respect to the support base.
  • An elevator hoisting machine maintenance method includes a hoisting machine main body, a horizontal main shaft supported by the hoisting machine main body, a drive sheave rotating about the main shaft with respect to the main shaft, and a lower portion of the main shaft
  • a hoisting machine base disposed on the hoisting machine base, a shaft support member that is detachable from the hoisting machine base and supports the main shaft on the opposite side of the hoisting machine body from the driving sheave, and the shaft of the driving sheave
  • a drive sheave support device having a movable support portion that is located immediately below the drive sheave, a step of raising the movable support portion to contact the outer peripheral surface of the drive sheave, and winding the
  • the drive sheave support device and the maintenance method for an elevator hoist according to the present invention suppress the bending of the main shaft when the shaft support member is removed by raising the movable support portion and bringing it into contact with the outer peripheral surface of the drive sheave.
  • the shaft support member can be easily attached to and detached from the hoisting machine base.
  • FIG. 1 It is a side view which shows the elevator hoisting machine by Embodiment 1 of this invention. It is a front view which shows the elevator hoisting machine of FIG. It is a side view which shows the state in the middle of implementation of the maintenance operation
  • FIG. 1 is a side view showing an elevator hoist according to Embodiment 1 of the present invention.
  • FIG. 2 is a front view showing the elevator hoisting machine of FIG. In the figure, a hoisting machine main body 2 and a flat shaft support member 3 are supported on the hoisting machine base 1.
  • the shaft support member 3 is fixed to the hoisting machine base 1 with a fastener (not shown) and is detachable from the hoisting machine base 1.
  • a plurality of bolts are used as the fasteners.
  • the hoisting machine main body 2 has a housing 4, a hoisting machine motor (not shown), and a hoisting machine brake (not shown).
  • the main shaft 5 which is a horizontal fixed shaft is supported on the housing 4 and the shaft support member 3.
  • a base end portion of the main shaft 5 is fixed to the housing 4 and supported by the hoisting machine main body 2.
  • the tip of the main shaft 5 is supported by the shaft support member 3.
  • the shaft support member 3 is provided with a circular shaft insertion hole 3a through which the tip of the main shaft 5 is passed.
  • the hoist motor has an annular motor stator and an annular motor rotor.
  • the motor stator is fixed to the housing 4.
  • the motor rotor is disposed inside the motor stator.
  • the motor rotor rotates about the main shaft 5 with respect to the main shaft.
  • a drive sheave 6 is provided between the hoisting machine main body 2 and the shaft support member 3.
  • the drive sheave 6 rotates about the main shaft 5 with respect to the main shaft 5 integrally with the motor rotor. Further, the hoist motor rotates the drive sheave 6.
  • the hoisting machine brake brakes the rotation of the drive sheave 6 or maintains the stationary state of the drive sheave 6.
  • a plurality of main ropes 7 as suspensions are wound around the drive sheave 6.
  • a car (not shown) and a counterweight (not shown) are suspended in the hoistway by the main rope 7.
  • the hoisting machine main body 2 raises and lowers the car and the counterweight by rotating the drive sheave 6.
  • a plurality of grooves 6 a are provided on the outer peripheral surface of the drive sheave 6.
  • the main ropes 7 are respectively inserted into the grooves 6a.
  • an angle detector 8 that is a target device for maintenance work is provided.
  • the angle detector 8 detects the rotation angle of the drive sheave 6 and the motor rotor.
  • a resolver is used as the angle detector 8.
  • the angle detector 8 faces the shaft support member 3.
  • the angle detector 8 includes an annular sensor stator and an annular sensor rotor.
  • the sensor stator is fixed to the main shaft 5.
  • the sensor rotor is fixed to the drive sheave 6 and rotates integrally with the drive sheave 6.
  • FIG. 3 is a side view showing a partial cross-sectional view of a state during the maintenance work for the angle detector 8 of FIG. For simplicity, the cross section of the angle detector 8 is shown without distinguishing between the sensor stator and the sensor rotor.
  • a bearing 9 is interposed between the main shaft 5 and the drive sheave 6.
  • the bearing 9 for example, a self-aligning roller bearing is used.
  • a drive sheave support device 11 as a temporary support base that supports the drive sheave 6 is installed on the hoisting machine base 1.
  • the drive sheave support device 11 includes a support base 12 and a movable support portion 13.
  • the support 12 is installed on the hoist base 1 just below the drive sheave 6.
  • the support base 12 has a rectangular flat support base body 14, a lower screw rod 15, and a nut portion 16.
  • the hoisting machine base 1 is provided with a recess 1a.
  • the support base body 14 is fitted into the recess 1a. Thereby, rotation of the support base main body 14 is regulated.
  • the lower screw rod 15 is fixed vertically to the upper portion of the support base body 14.
  • the movable support portion 13 has a sheave receiving member 17 and an upper screw rod 18.
  • the sheave receiving member 17 is in contact with a part of the outer peripheral surface of the drive sheave 6. As shown in FIG. 5, a plurality of arc-shaped convex portions 17 a inserted into a part of the groove 6 a are provided on the upper surface of the sheave receiving member 17.
  • the upper screw rod 18 is vertically fixed to the lower portion of the sheave receiving member 17. Further, the direction of the screw groove of the lower screw rod 15 and the direction of the screw groove of the upper screw rod 18 are different from each other. That is, one of the lower screw rod 15 and the upper screw rod 18 is a right-hand thread, and the other is a left-hand thread.
  • the nut portion 16 is provided with a lower screw hole 16 a corresponding to the lower screw rod 15 and an upper screw hole 16 b corresponding to the upper screw rod 18.
  • the lower screw rod 15 is screwed into the lower screw hole 16a.
  • An upper screw rod 18 is screwed into the upper screw hole 16b.
  • the movable support 13 moves up and down with respect to the support 12 by rotating the nut 16 about the lower screw rod 15 while restricting the rotation of the support base 14 and the movable support 13.
  • the rotation of the movable support portion 13 is restricted by inserting the convex portion 17a into the groove 6a.
  • the drive sheave support device 11 When replacing the angle detector 8, first, as shown in FIG. 7, the drive sheave support device 11 is disposed directly below the drive sheave 6. And the upper end of the convex part 17a is inserted in the groove
  • the nut portion 16 is rotated by a worker's hand or jig to raise the movable support portion 13, and the sheave receiving member 17 is brought into contact with the outer peripheral surface of the drive sheave 6 as shown in FIG.
  • the shaft support member 3 is removed from the hoisting machine base 1.
  • the drive sheave 6 is supported by the drive sheave support device 11 without the main shaft 5 being bent.
  • the height of the movable support portion 13 is finely adjusted.
  • the angle detector 8 is replaced. That is, the existing angle detector 8 is removed from the elevator hoisting machine, and a new angle detector 8 is attached at the same position. Thereafter, the shaft support member 3 is fixed to the hoisting machine base 1 through the shaft insertion hole 3 a through the tip of the main shaft 5. When it is difficult to attach the shaft support member 3 to the hoisting machine base 1, the height of the movable support portion 13 is finely adjusted.
  • the movable support 13 is raised and brought into contact with the outer peripheral surface of the drive sheave 6. Thereby, the bending of the main shaft 5 when the shaft support member 3 is removed can be suppressed. Further, the shaft support member 3 can be easily attached to and detached from the hoisting machine base 1.
  • the rope load can be received by the drive sheave support device 11 when the shaft support member 3 is removed. For this reason, the housing 4 and the main shaft 5 can be reduced in size.
  • the drive sheave support device 11 has a structure in which the movable support portion 13 is moved up and down with respect to the support base 12 by turning the nut portion 16. For this reason, the drive sheave 6 can be supported with a simple configuration. Moreover, installation and removal of the drive sheave support device 11 can be facilitated.
  • the movable support portion 13 has a sheave receiving member 17, and the sheave receiving member 17 is provided with a convex portion 17 a. For this reason, rotation of the movable support part 13 can be suppressed and the drive sheave 6 can be stably supported. Moreover, damage to the drive sheave 6 can be suppressed.
  • the target device is the angle detector 8
  • the maintenance work can be easily performed by removing the shaft support member 3 while supporting the drive sheave 6 with the drive sheave support device 11.
  • the cross-sectional shape of the nut portion 16 may be a hexagon as shown in FIG. Thereby, the nut part 16 can be easily rotated with a spanner.
  • hoisting machine base 1 and the housing 4 may be integrated.
  • the recess 1a may be omitted.
  • the mechanism for moving the movable support portion 13 up and down is not limited to the above example, and may be a pantograph jack, for example. Further, for example, the movable support portion 13 may be moved up and down by a fluid pressure actuator or a motor.
  • angle detector 8 is not limited to a resolver, and may be an encoder, for example.
  • the target device is not limited to the angle detector 8.
  • the position of the target device is not limited to the end of the drive sheave 6 on the shaft support member 3 side.
  • the maintenance work is not limited to the replacement work of the target device, and may be, for example, an inspection work, a cleaning work, or a repair work of the target equipment.
  • the suspended body is not limited to the main rope 7 and may be, for example, a belt.
  • 1 hoisting machine base 2 hoisting machine main body, 3 shaft support member, 5 spindle, 6 drive sheave, 6a groove, 8 angle detector (target device), 11 drive sheave support device, 12 support base, 13 movable support section 15 lower screw rod, 16 nut portion, 16a lower screw hole, 16b upper screw hole, 17 sheave receiving member, 17a convex portion, 18 upper screw rod.

Abstract

In this elevator hoist maintenance method, a drive sheave support device having a support base and a movable support section which is supported on the support base and which is vertically movable relative to the support base is disposed directly below a drive sheave. Then, the movable support section is lifted and brought into contact with the outer peripheral surface of the drive sheave, and a shaft support member is removed from a hoist base. After that, equipment to be maintained is maintained. Then, the shaft support member is mounted on the hoist base, and the movable support section is lowered.

Description

エレベータ巻上機の駆動シーブ支持装置及びメンテナンス方法Drive sheave support device and maintenance method for elevator hoisting machine
　この発明は、エレベータ巻上機のメンテナンス時に用いられる駆動シーブ支持装置、及びエレベータ巻上機のメンテナンス方法に関するものである。 The present invention relates to a drive sheave support device used during maintenance of an elevator hoist and a maintenance method for the elevator hoist.
　従来の巻上機では、駆動シーブの直下に支持台が配置されている。駆動シーブの外周面と支持台との間には、隙間が設けられている。駆動シーブに定格以上の負荷が作用した場合、固定軸が撓み、駆動シーブが支持台に接触する（例えば、特許文献１参照）。 In the conventional hoisting machine, a support base is arranged directly under the drive sheave. A gap is provided between the outer peripheral surface of the drive sheave and the support base. When a load exceeding the rating acts on the drive sheave, the fixed shaft bends and the drive sheave contacts the support base (see, for example, Patent Document 1).
特開２００６－１４３４６９号公報（図１１）JP 2006-143469 A (FIG. 11)
　主軸の先端部が軸支持部材により支持されているエレベータ巻上機において、駆動シーブの軸支持部材側の端部に角度検出器が配置されている場合、角度検出器を交換するためには、軸支持部材を巻上機ベースから取り外す必要がある。しかし、駆動シーブに懸架体が巻き掛けられた状態で、軸支持部材を巻上機ベースから取り外すと、主軸が撓むため、軸支持部材を再度据え付けることが難しくなる。これに対して、特許文献１の巻上機では、駆動シーブと支持台との間に隙間があるため、固定軸の撓みを阻止することはできない。 In an elevator hoisting machine in which the tip of the main shaft is supported by a shaft support member, when the angle detector is disposed at the end of the drive sheave on the shaft support member side, in order to replace the angle detector, It is necessary to remove the shaft support member from the hoisting machine base. However, if the shaft support member is removed from the hoisting machine base while the suspension body is wound around the drive sheave, the main shaft bends, making it difficult to install the shaft support member again. On the other hand, in the hoisting machine of Patent Document 1, since there is a gap between the drive sheave and the support base, it is impossible to prevent the fixed shaft from being bent.
　この発明は、上記のような課題を解決するためになされたものであり、軸支持部材を取り外したときの主軸の撓みを抑制するとともに、巻上機ベースに対する軸支持部材の着脱を容易にすることができるエレベータ巻上機の駆動シーブ支持装置及びメンテナンス方法を得ることを目的とする。 The present invention has been made to solve the above-described problems, and suppresses bending of the main shaft when the shaft support member is removed, and facilitates attachment / detachment of the shaft support member to the hoisting machine base. It is an object of the present invention to provide a drive sheave support device and a maintenance method for an elevator hoisting machine.
　この発明に係るエレベータ巻上機の駆動シーブ支持装置は、巻上機本体と、巻上機本体に支持されている水平な主軸と、主軸を中心として主軸に対して回転する駆動シーブと、主軸の下方に配置されている巻上機ベースと、巻上機ベースに対して着脱可能であり、駆動シーブに対して巻上機本体とは反対側で主軸を支持する軸支持部材とを備えているエレベータ巻上機に用いられる駆動シーブ支持装置であって、駆動シーブの真下で巻上機ベース上に設置される支持台、及び支持台に支持されており、かつ支持台に対して上下動可能になっており、駆動シーブの外周面に接触する可動支持部を備えている。
　この発明に係るエレベータ巻上機のメンテナンス方法は、巻上機本体と、巻上機本体に支持されている水平な主軸と、主軸を中心として主軸に対して回転する駆動シーブと、主軸の下方に配置されている巻上機ベースと、巻上機ベースに対して着脱可能であり、駆動シーブに対して巻上機本体とは反対側で主軸を支持する軸支持部材と、駆動シーブの軸支持部材側の端部に設けられている対象機器とを備えているエレベータ巻上機のメンテナンス方法であって、支持台と、支持台に支持されており、かつ支持台に対して上下動可能になっている可動支持部とを有している駆動シーブ支持装置を、駆動シーブの真下に配置する工程、可動支持部を上昇させ駆動シーブの外周面に接触させる工程、軸支持部材を巻上機ベースから取り外す工程、対象機器に対するメンテナンス作業を実施する工程、軸支持部材を巻上機ベースに取り付ける工程、及び可動支持部を下降させる工程を含む。 A drive sheave support device for an elevator hoisting machine according to the present invention includes a hoisting machine main body, a horizontal main shaft supported by the hoisting machine main body, a driving sheave rotating about the main shaft with respect to the main shaft, and the main shaft A hoisting machine base disposed below the hoisting machine base, and a shaft support member that is detachable from the hoisting machine base and supports the main shaft on the side opposite to the hoisting machine main body with respect to the drive sheave. A drive sheave support device used for an elevator hoisting machine that is installed on a hoisting machine base directly under the drive sheave, and is supported by the support base and moves up and down with respect to the support base. The movable support part which contacts the outer peripheral surface of the drive sheave is provided.
An elevator hoisting machine maintenance method according to the present invention includes a hoisting machine main body, a horizontal main shaft supported by the hoisting machine main body, a drive sheave rotating about the main shaft with respect to the main shaft, and a lower portion of the main shaft A hoisting machine base disposed on the hoisting machine base, a shaft support member that is detachable from the hoisting machine base and supports the main shaft on the opposite side of the hoisting machine body from the driving sheave, and the shaft of the driving sheave A maintenance method for an elevator hoist equipped with a target device provided at an end portion on the support member side, which is supported by the support base and the support base and can be moved up and down with respect to the support base A drive sheave support device having a movable support portion that is located immediately below the drive sheave, a step of raising the movable support portion to contact the outer peripheral surface of the drive sheave, and winding the shaft support member Removing from the machine base, Step of performing the maintenance work on the device, attaching a shaft support member to the hoisting machine base, and a step of lowering the movable support.
　この発明のエレベータ巻上機の駆動シーブ支持装置及びメンテナンス方法は、可動支持部を上昇させて駆動シーブの外周面に接触させることで、軸支持部材を取り外したときの主軸の撓みを抑制するとともに、巻上機ベースに対する軸支持部材の着脱を容易にすることができる。 The drive sheave support device and the maintenance method for an elevator hoist according to the present invention suppress the bending of the main shaft when the shaft support member is removed by raising the movable support portion and bringing it into contact with the outer peripheral surface of the drive sheave. The shaft support member can be easily attached to and detached from the hoisting machine base.
この発明の実施の形態１によるエレベータ巻上機を示す側面図である。It is a side view which shows the elevator hoisting machine by Embodiment 1 of this invention. 図１のエレベータ巻上機を示す正面図である。It is a front view which shows the elevator hoisting machine of FIG. 図１の角度検出器に対するメンテナンス作業の実施途中の状態を一部断面で示す側面図である。It is a side view which shows the state in the middle of implementation of the maintenance operation | work with respect to the angle detector of FIG. 図３の支持台本体及び下部ねじ棒を示す斜視図である。It is a perspective view which shows the support base main body and lower screw rod of FIG. 図３の可動支持部を示す斜視図である。It is a perspective view which shows the movable support part of FIG. 図３のナット部を示す斜視図である。It is a perspective view which shows the nut part of FIG. 図３の可動支持部を上昇させる前の状態を示す側面図である。It is a side view which shows the state before raising the movable support part of FIG. 図６のナット部の変形例を示す斜視図である。It is a perspective view which shows the modification of the nut part of FIG.
　以下、この発明を実施するための形態について、図面を参照して説明する。
　実施の形態１．
　図１は、この発明の実施の形態１によるエレベータ巻上機を示す側面図である。図２は、図１のエレベータ巻上機を示す正面図である。図において、巻上機ベース１上には、巻上機本体２と、平板状の軸支持部材３とが支持されている。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is a side view showing an elevator hoist according to Embodiment 1 of the present invention. FIG. 2 is a front view showing the elevator hoisting machine of FIG. In the figure, a hoisting machine main body 2 and a flat shaft support member 3 are supported on the hoisting machine base 1.
　軸支持部材３は、巻上機ベース１に締結具（図示せず）により固定されており、巻上機ベース１に対して着脱可能である。締結具としては、複数のボルトが用いられている。 The shaft support member 3 is fixed to the hoisting machine base 1 with a fastener (not shown) and is detachable from the hoisting machine base 1. A plurality of bolts are used as the fasteners.
　巻上機本体２は、ハウジング４、巻上機モータ（図示せず）、及び巻上機ブレーキ（図示せず）を有している。 The hoisting machine main body 2 has a housing 4, a hoisting machine motor (not shown), and a hoisting machine brake (not shown).
　ハウジング４及び軸支持部材３には、水平な固定軸である主軸５が支持されている。主軸５の基端部は、ハウジング４に固定され、巻上機本体２により支持されている。主軸５の先端部は、軸支持部材３により支持されている。軸支持部材３には、主軸５の先端部が通された円形の軸挿入孔３ａが設けられている。 The main shaft 5 which is a horizontal fixed shaft is supported on the housing 4 and the shaft support member 3. A base end portion of the main shaft 5 is fixed to the housing 4 and supported by the hoisting machine main body 2. The tip of the main shaft 5 is supported by the shaft support member 3. The shaft support member 3 is provided with a circular shaft insertion hole 3a through which the tip of the main shaft 5 is passed.
　巻上機モータは、円環状のモータステータと、円環状のモータロータとを有している。モータステータは、ハウジング４に固定されている。モータロータは、モータステータの内側に配置されている。また、モータロータは、主軸５を中心として主軸に対して回転する。 The hoist motor has an annular motor stator and an annular motor rotor. The motor stator is fixed to the housing 4. The motor rotor is disposed inside the motor stator. The motor rotor rotates about the main shaft 5 with respect to the main shaft.
　巻上機本体２と軸支持部材３との間には、駆動シーブ６が設けられている。駆動シーブ６は、主軸５を中心として、モータロータと一体に主軸５に対して回転する。また、巻上機モータは、駆動シーブ６を回転させる。巻上機ブレーキは、駆動シーブ６の回転を制動、又は駆動シーブ６の静止状態を保持する。 A drive sheave 6 is provided between the hoisting machine main body 2 and the shaft support member 3. The drive sheave 6 rotates about the main shaft 5 with respect to the main shaft 5 integrally with the motor rotor. Further, the hoist motor rotates the drive sheave 6. The hoisting machine brake brakes the rotation of the drive sheave 6 or maintains the stationary state of the drive sheave 6.
　図２では省略しているが、駆動シーブ６には、懸架体としての複数の主ロープ７が巻き掛けられている。かご（図示せず）及び釣合おもり（図示せず）は、主ロープ７により昇降路内に吊り下げられている。巻上機本体２は、駆動シーブ６を回転させることにより、かご及び釣合おもりを昇降させる。 Although omitted in FIG. 2, a plurality of main ropes 7 as suspensions are wound around the drive sheave 6. A car (not shown) and a counterweight (not shown) are suspended in the hoistway by the main rope 7. The hoisting machine main body 2 raises and lowers the car and the counterweight by rotating the drive sheave 6.
　駆動シーブ６の外周面には、複数の溝６ａが設けられている。主ロープ７は、溝６ａにそれぞれ挿入されている。 A plurality of grooves 6 a are provided on the outer peripheral surface of the drive sheave 6. The main ropes 7 are respectively inserted into the grooves 6a.
　駆動シーブ６の軸支持部材３側の端部には、メンテナンス作業の対象機器である角度検出器８が設けられている。角度検出器８は、駆動シーブ６及びモータロータの回転角度を検出する。角度検出器８としては、例えばレゾルバが用いられる。 At the end of the drive sheave 6 on the shaft support member 3 side, an angle detector 8 that is a target device for maintenance work is provided. The angle detector 8 detects the rotation angle of the drive sheave 6 and the motor rotor. For example, a resolver is used as the angle detector 8.
　また、角度検出器８は、軸支持部材３に対向している。また、角度検出器８は、円環状のセンサステータと、円環状のセンサロータとを有している。センサステータは、主軸５に固定されている。センサロータは、駆動シーブ６に対して固定されており、駆動シーブ６と一体に回転する。 Further, the angle detector 8 faces the shaft support member 3. The angle detector 8 includes an annular sensor stator and an annular sensor rotor. The sensor stator is fixed to the main shaft 5. The sensor rotor is fixed to the drive sheave 6 and rotates integrally with the drive sheave 6.
　図３は、図１の角度検出器８に対するメンテナンス作業の実施途中の状態を一部断面で示す側面図である。簡単のため、角度検出器８の断面は、センサステータとセンサロータとを区別せずに示している。 FIG. 3 is a side view showing a partial cross-sectional view of a state during the maintenance work for the angle detector 8 of FIG. For simplicity, the cross section of the angle detector 8 is shown without distinguishing between the sensor stator and the sensor rotor.
　主軸５と駆動シーブ６との間には、軸受９が介在している。軸受９としては、例えば、自動調心ころ軸受が用いられている。 A bearing 9 is interposed between the main shaft 5 and the drive sheave 6. As the bearing 9, for example, a self-aligning roller bearing is used.
　角度検出器８に対するメンテナンス作業時には、駆動シーブ６を支持する仮支持台としての駆動シーブ支持装置１１が、巻上機ベース１上に設置される。駆動シーブ支持装置１１は、支持台１２及び可動支持部１３を有している。 During the maintenance work for the angle detector 8, a drive sheave support device 11 as a temporary support base that supports the drive sheave 6 is installed on the hoisting machine base 1. The drive sheave support device 11 includes a support base 12 and a movable support portion 13.
　支持台１２は、駆動シーブ６の真下で、巻上機ベース１上に設置されている。また、支持台１２は、矩形の平板状の支持台本体１４と、下部ねじ棒１５と、ナット部１６とを有している。 The support 12 is installed on the hoist base 1 just below the drive sheave 6. The support base 12 has a rectangular flat support base body 14, a lower screw rod 15, and a nut portion 16.
　巻上機ベース１には、凹部１ａが設けられている。支持台本体１４は、凹部１ａに嵌め合わされている。これにより、支持台本体１４の回転が規制されている。下部ねじ棒１５は、図４にも示すように、支持台本体１４の上部に垂直に固定されている。 The hoisting machine base 1 is provided with a recess 1a. The support base body 14 is fitted into the recess 1a. Thereby, rotation of the support base main body 14 is regulated. As shown in FIG. 4, the lower screw rod 15 is fixed vertically to the upper portion of the support base body 14.
　可動支持部１３は、シーブ受け部材１７と、上部ねじ棒１８とを有している。シーブ受け部材１７は、駆動シーブ６の外周面の一部に接触している。シーブ受け部材１７の上面には、図５にも示すように、溝６ａの一部に挿入されている複数の円弧状の凸部１７ａが設けられている。 The movable support portion 13 has a sheave receiving member 17 and an upper screw rod 18. The sheave receiving member 17 is in contact with a part of the outer peripheral surface of the drive sheave 6. As shown in FIG. 5, a plurality of arc-shaped convex portions 17 a inserted into a part of the groove 6 a are provided on the upper surface of the sheave receiving member 17.
　上部ねじ棒１８は、シーブ受け部材１７の下部に垂直に固定されている。また、下部ねじ棒１５のねじ溝の向きと、上部ねじ棒１８のねじ溝の向きとは、互いに異なっている。即ち、下部ねじ棒１５及び上部ねじ棒１８のいずれか一方は右ねじで、他方は左ねじである。 The upper screw rod 18 is vertically fixed to the lower portion of the sheave receiving member 17. Further, the direction of the screw groove of the lower screw rod 15 and the direction of the screw groove of the upper screw rod 18 are different from each other. That is, one of the lower screw rod 15 and the upper screw rod 18 is a right-hand thread, and the other is a left-hand thread.
　ナット部１６には、図６にも示すように、下部ねじ棒１５に対応する下部ねじ孔１６ａと、上部ねじ棒１８に対応する上部ねじ孔１６ｂとが設けられている。下部ねじ孔１６ａには、下部ねじ棒１５がねじ込まれている。上部ねじ孔１６ｂには、上部ねじ棒１８がねじ込まれている。 As shown in FIG. 6, the nut portion 16 is provided with a lower screw hole 16 a corresponding to the lower screw rod 15 and an upper screw hole 16 b corresponding to the upper screw rod 18. The lower screw rod 15 is screwed into the lower screw hole 16a. An upper screw rod 18 is screwed into the upper screw hole 16b.
　支持台本体１４及び可動支持部１３の回転を規制しつつ、下部ねじ棒１５を中心としてナット部１６を回転させることにより、可動支持部１３が支持台１２に対して上下動する。実施の形態１では、凸部１７ａを溝６ａに挿入することで、可動支持部１３の回転が規制される。 The movable support 13 moves up and down with respect to the support 12 by rotating the nut 16 about the lower screw rod 15 while restricting the rotation of the support base 14 and the movable support 13. In Embodiment 1, the rotation of the movable support portion 13 is restricted by inserting the convex portion 17a into the groove 6a.
　次に、エレベータ巻上機のメンテナンス方法について説明する。実施の形態１では、メンテナンス作業として、角度検出器８の交換作業について説明する。 Next, the maintenance method for the elevator hoisting machine will be described. In the first embodiment, replacement work of the angle detector 8 will be described as maintenance work.
　角度検出器８を交換する場合、まず図７に示すように、駆動シーブ支持装置１１を駆動シーブ６の真下に配置する。そして、凸部１７ａの上端を溝６ａに挿入する。なお、図７では、主ロープ７の図示を省略したが、駆動シーブ６には主ロープ７が巻き掛けられたままである。 When replacing the angle detector 8, first, as shown in FIG. 7, the drive sheave support device 11 is disposed directly below the drive sheave 6. And the upper end of the convex part 17a is inserted in the groove | channel 6a. In FIG. 7, the main rope 7 is not shown, but the main rope 7 remains wound around the drive sheave 6.
　この後、作業員の手又は治具によりナット部１６を回転させ、可動支持部１３を上昇させて、図３に示すように、シーブ受け部材１７を駆動シーブ６の外周面に接触させる。 Thereafter, the nut portion 16 is rotated by a worker's hand or jig to raise the movable support portion 13, and the sheave receiving member 17 is brought into contact with the outer peripheral surface of the drive sheave 6 as shown in FIG.
　次に、軸支持部材３を巻上機ベース１から取り外す。この状態では、主軸５が撓むことなく、駆動シーブ６が駆動シーブ支持装置１１により支持されている。軸支持部材３が巻上機ベース１から取り外しにくい場合には、可動支持部１３の高さを微調整する。 Next, the shaft support member 3 is removed from the hoisting machine base 1. In this state, the drive sheave 6 is supported by the drive sheave support device 11 without the main shaft 5 being bent. When the shaft support member 3 is difficult to remove from the hoisting machine base 1, the height of the movable support portion 13 is finely adjusted.
　軸支持部材３を取り外した後、角度検出器８の交換作業を実施する。即ち、既設の角度検出器８をエレベータ巻上機から取り外し、新たな角度検出器８を同じ位置に取り付ける。この後、軸挿入孔３ａに主軸５の先端部を通して、軸支持部材３を巻上機ベース１に固定する。軸支持部材３を巻上機ベース１に取り付けにくい場合には、可動支持部１３の高さを微調整する。 After removing the shaft support member 3, the angle detector 8 is replaced. That is, the existing angle detector 8 is removed from the elevator hoisting machine, and a new angle detector 8 is attached at the same position. Thereafter, the shaft support member 3 is fixed to the hoisting machine base 1 through the shaft insertion hole 3 a through the tip of the main shaft 5. When it is difficult to attach the shaft support member 3 to the hoisting machine base 1, the height of the movable support portion 13 is finely adjusted.
　軸支持部材３を可動支持部１３に固定したら、図７に示すように、可動支持部１３を下降させる。この後、駆動シーブ支持装置１１をエレベータ巻上機から撤去する。 When the shaft support member 3 is fixed to the movable support portion 13, the movable support portion 13 is lowered as shown in FIG. Thereafter, the drive sheave support device 11 is removed from the elevator hoisting machine.
　このようなエレベータ巻上機の駆動シーブ支持装置１１及びメンテナンス方法では、可動支持部１３を上昇させ駆動シーブ６の外周面に接触させる。これにより、軸支持部材３を取り外したときの主軸５の撓みを抑制することができる。また、巻上機ベース１に対する軸支持部材３の着脱を容易にすることができる。 In the elevator sheave drive sheave support device 11 and the maintenance method, the movable support 13 is raised and brought into contact with the outer peripheral surface of the drive sheave 6. Thereby, the bending of the main shaft 5 when the shaft support member 3 is removed can be suppressed. Further, the shaft support member 3 can be easily attached to and detached from the hoisting machine base 1.
　また、軸支持部材３を取り外した状態のときに、ロープ荷重を駆動シーブ支持装置１１で受けることができる。このため、ハウジング４及び主軸５を小型化することができる。 Further, the rope load can be received by the drive sheave support device 11 when the shaft support member 3 is removed. For this reason, the housing 4 and the main shaft 5 can be reduced in size.
　また、駆動シーブ支持装置１１はナット部１６を旋回することで、可動支持部１３を支持台１２に対して上下動させる構造である。このため、簡単な構成により、駆動シーブ６を支持することができる。また、駆動シーブ支持装置１１の設置及び撤去を容易にすることができる。 Further, the drive sheave support device 11 has a structure in which the movable support portion 13 is moved up and down with respect to the support base 12 by turning the nut portion 16. For this reason, the drive sheave 6 can be supported with a simple configuration. Moreover, installation and removal of the drive sheave support device 11 can be facilitated.
　また、可動支持部１３は、シーブ受け部材１７を有しており、シーブ受け部材１７には凸部１７ａが設けられている。このため、可動支持部１３の回転を抑制し、駆動シーブ６を安定して支持することができる。また、駆動シーブ６の損傷を抑制することができる。 In addition, the movable support portion 13 has a sheave receiving member 17, and the sheave receiving member 17 is provided with a convex portion 17 a. For this reason, rotation of the movable support part 13 can be suppressed and the drive sheave 6 can be stably supported. Moreover, damage to the drive sheave 6 can be suppressed.
　また、対象機器が角度検出器８であるため、駆動シーブ支持装置１１で駆動シーブ６を支持しつつ、軸支持部材３を取り外すことにより、メンテナンス作業を容易に行うことができる。 Also, since the target device is the angle detector 8, the maintenance work can be easily performed by removing the shaft support member 3 while supporting the drive sheave 6 with the drive sheave support device 11.
　なお、ナット部１６の断面形状を、図８に示すように六角形としてもよい。これにより、ナット部１６をスパナで容易に回転させることができる。 The cross-sectional shape of the nut portion 16 may be a hexagon as shown in FIG. Thereby, the nut part 16 can be easily rotated with a spanner.
　また、巻上機ベース１とハウジング４とを一体化してもよい。 Further, the hoisting machine base 1 and the housing 4 may be integrated.
　また、凹部１ａは省略してもよい。 Further, the recess 1a may be omitted.
　また、可動支持部１３を上下動させる機構は、上記の例に限定されるものではなく、例えばパンタグラフジャッキであってもよい。また、例えば、流体圧アクチュエータ又はモータにより、可動支持部１３を上下動させてもよい。 The mechanism for moving the movable support portion 13 up and down is not limited to the above example, and may be a pantograph jack, for example. Further, for example, the movable support portion 13 may be moved up and down by a fluid pressure actuator or a motor.
　また、角度検出器８は、レゾルバに限定されるものではなく、例えばエンコーダであってもよい。 Further, the angle detector 8 is not limited to a resolver, and may be an encoder, for example.
　また、対象機器は、角度検出器８に限定されるものではない。 Further, the target device is not limited to the angle detector 8.
　また、対象機器の位置は、駆動シーブ６の軸支持部材３側の端部に限定されるものではない。 Further, the position of the target device is not limited to the end of the drive sheave 6 on the shaft support member 3 side.
　また、メンテナンス作業は、対象機器の交換作業に限定されるものではなく、例えば、対象機器の点検作業、清掃作業、又は修理作業であってもよい。 Further, the maintenance work is not limited to the replacement work of the target device, and may be, for example, an inspection work, a cleaning work, or a repair work of the target equipment.
　また、懸架体は、主ロープ７に限定されるものではなく、例えばベルトであってもよい。 Further, the suspended body is not limited to the main rope 7 and may be, for example, a belt.
　１　巻上機ベース、２　巻上機本体、３　軸支持部材、５　主軸、６　駆動シーブ、６ａ　溝、８　角度検出器（対象機器）、１１　駆動シーブ支持装置、１２　支持台、１３　可動支持部、１５　下部ねじ棒、１６　ナット部、１６ａ　下部ねじ孔、１６ｂ　上部ねじ孔、１７　シーブ受け部材、１７ａ　凸部、１８　上部ねじ棒。 1 hoisting machine base, 2 hoisting machine main body, 3 shaft support member, 5 spindle, 6 drive sheave, 6a groove, 8 angle detector (target device), 11 drive sheave support device, 12 support base, 13 movable support section 15 lower screw rod, 16 nut portion, 16a lower screw hole, 16b upper screw hole, 17 sheave receiving member, 17a convex portion, 18 upper screw rod.

Claims (7)

  1. 　巻上機本体と、前記巻上機本体に支持されている水平な主軸と、前記主軸を中心として前記主軸に対して回転する駆動シーブと、前記主軸の下方に配置されている巻上機ベースと、前記巻上機ベースに対して着脱可能であり、前記駆動シーブに対して前記巻上機本体とは反対側で前記主軸を支持する軸支持部材とを備えているエレベータ巻上機に用いられる駆動シーブ支持装置であって、
    　前記駆動シーブの真下で前記巻上機ベース上に設置される支持台、及び
    　前記支持台に支持されており、かつ前記支持台に対して上下動可能になっており、前記駆動シーブの外周面に接触する可動支持部
    　を備えているエレベータ巻上機の駆動シーブ支持装置。     A hoisting machine main body, a horizontal main shaft supported by the hoisting machine main body, a drive sheave rotating with respect to the main shaft about the main shaft, and a hoisting machine base disposed below the main shaft And an elevator hoisting machine that is detachable from the hoisting machine base and includes a shaft support member that supports the main shaft on the side opposite to the hoisting machine main body with respect to the drive sheave. Drive sheave support device, comprising:
    A support base installed on the hoisting machine base directly below the drive sheave, and supported by the support base and vertically movable with respect to the support base; and an outer peripheral surface of the drive sheave A drive sheave support device for an elevator hoisting machine that includes a movable support portion that contacts the door.
  2. 　前記支持台は、下部ねじ棒と、ナット部とを有しており、
    　前記可動支持部は、上部ねじ棒を有しており、
    　前記下部ねじ棒及び前記上部ねじ棒のいずれか一方は右ねじであり、他方は左ねじであり、
    　前記ナット部には、前記下部ねじ棒がねじ込まれている下部ねじ孔と、前記上部ねじ棒がねじ込まれている上部ねじ孔とが設けられており、
    　前記ナット部を回転させることにより、前記可動支持部が前記支持台に対して上下動する請求項１記載のエレベータ巻上機の駆動シーブ支持装置。     The support base has a lower screw rod and a nut portion,
    The movable support portion has an upper screw rod,
    One of the lower screw rod and the upper screw rod is a right-hand thread, and the other is a left-hand thread,
    The nut portion is provided with a lower screw hole into which the lower screw rod is screwed and an upper screw hole into which the upper screw rod is screwed.
    The drive sheave support device for an elevator hoisting machine according to claim 1, wherein the movable support portion moves up and down relative to the support base by rotating the nut portion.
  3. 　前記可動支持部は、前記駆動シーブの外周面に接するシーブ受け部材を有しており、
    　前記シーブ受け部材には、前記駆動シーブの外周面に設けられた溝の一部に挿入される円弧状の凸部が設けられている請求項１又は請求項２に記載のエレベータ巻上機の駆動シーブ支持装置。     The movable support portion has a sheave receiving member that contacts an outer peripheral surface of the drive sheave,
    The elevator hoisting machine according to claim 1 or 2, wherein the sheave receiving member is provided with an arc-shaped convex portion that is inserted into a part of a groove provided on an outer peripheral surface of the drive sheave. Drive sheave support device.
  4. 　巻上機本体と、前記巻上機本体に支持されている水平な主軸と、前記主軸を中心として前記主軸に対して回転する駆動シーブと、前記主軸の下方に配置されている巻上機ベースと、前記巻上機ベースに対して着脱可能であり、前記駆動シーブに対して前記巻上機本体とは反対側で前記主軸を支持する軸支持部材とを備えているエレベータ巻上機のメンテナンス方法であって、
    　支持台と、前記支持台に支持されており、かつ前記支持台に対して上下動可能になっている可動支持部とを有している駆動シーブ支持装置を、前記駆動シーブの真下に配置する工程、
    　前記可動支持部を上昇させ前記駆動シーブの外周面に接触させる工程、
    　前記軸支持部材を前記巻上機ベースから取り外す工程、
    　対象機器に対するメンテナンス作業を実施する工程、
    　前記軸支持部材を前記巻上機ベースに取り付ける工程、及び
    　前記可動支持部を下降させる工程
    　を含むエレベータ巻上機のメンテナンス方法。     A hoisting machine main body, a horizontal main shaft supported by the hoisting machine main body, a drive sheave rotating with respect to the main shaft about the main shaft, and a hoisting machine base disposed below the main shaft And an elevator hoisting machine that is detachable from the hoisting machine base and includes a shaft support member that supports the main shaft on the side opposite to the hoisting machine main body with respect to the drive sheave. A method,
    A drive sheave support device having a support base and a movable support portion supported by the support base and capable of moving up and down with respect to the support base is disposed directly below the drive sheave. Process,
    Raising the movable support and bringing it into contact with the outer peripheral surface of the drive sheave;
    Removing the shaft support member from the hoist base;
    A process of performing maintenance work on the target equipment,
    A method for maintaining an elevator hoisting machine, comprising: attaching the shaft support member to the hoisting machine base; and lowering the movable support part.
  5. 　前記メンテナンス作業は、前記駆動シーブの前記軸支持部材側の端部に設けられている前記対象機器に対して実施する請求項４記載のエレベータ巻上機のメンテナンス方法。 The maintenance method for an elevator hoist according to claim 4, wherein the maintenance work is performed on the target device provided at an end of the drive sheave on the shaft support member side.
  6. 　前記対象機器は、前記駆動シーブの回転角度を検出する角度検出器である請求項５記載のエレベータ巻上機のメンテナンス方法。 The maintenance method for an elevator hoist according to claim 5, wherein the target device is an angle detector that detects a rotation angle of the drive sheave.
  7. 　前記メンテナンス作業は、前記角度検出器の交換作業である請求項６記載のエレベータ巻上機のメンテナンス方法。 The maintenance method for an elevator hoisting machine according to claim 6, wherein the maintenance work is an exchange work of the angle detector.
PCT/JP2018/010597 2018-03-16 2018-03-16 Drive sheave support device for elevator hoist, and elevator hoist maintenance method WO2019176106A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0718623A (en) * 1993-06-15 1995-01-20 Kumagai Gumi Co Ltd Box girder bridge
JPH08239182A (en) * 1995-03-02 1996-09-17 Toshiba Elevator Eng Kk Hoist for elevator
JPH11236180A (en) * 1998-02-20 1999-08-31 Hitachi Ltd Apparatus for mounting shaft
JP2006143469A (en) * 2004-10-20 2006-06-08 Mitsubishi Electric Corp Hoisting machine
JP2007015810A (en) * 2005-07-07 2007-01-25 Mitsubishi Electric Corp Hoisting machine for elevator
JP2008213984A (en) * 2007-03-01 2008-09-18 Yamaha Kako Union:Kk Transporting device equipped with plurality of load transmitting paths, and transporting method of heavy article

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0718623A (en) * 1993-06-15 1995-01-20 Kumagai Gumi Co Ltd Box girder bridge
JPH08239182A (en) * 1995-03-02 1996-09-17 Toshiba Elevator Eng Kk Hoist for elevator
JPH11236180A (en) * 1998-02-20 1999-08-31 Hitachi Ltd Apparatus for mounting shaft
JP2006143469A (en) * 2004-10-20 2006-06-08 Mitsubishi Electric Corp Hoisting machine
JP2007015810A (en) * 2005-07-07 2007-01-25 Mitsubishi Electric Corp Hoisting machine for elevator
JP2008213984A (en) * 2007-03-01 2008-09-18 Yamaha Kako Union:Kk Transporting device equipped with plurality of load transmitting paths, and transporting method of heavy article

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