WO2018193619A1 - Poulie destinée à un ascenseur et procédé d'assemblage de poulie destinée à un ascenseur - Google Patents

Poulie destinée à un ascenseur et procédé d'assemblage de poulie destinée à un ascenseur Download PDF

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Publication number
WO2018193619A1
WO2018193619A1 PCT/JP2017/016053 JP2017016053W WO2018193619A1 WO 2018193619 A1 WO2018193619 A1 WO 2018193619A1 JP 2017016053 W JP2017016053 W JP 2017016053W WO 2018193619 A1 WO2018193619 A1 WO 2018193619A1
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WO
WIPO (PCT)
Prior art keywords
sheave
boss portion
piece
elevator
boss
Prior art date
Application number
PCT/JP2017/016053
Other languages
English (en)
Japanese (ja)
Inventor
順一 多田
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2017/016053 priority Critical patent/WO2018193619A1/fr
Publication of WO2018193619A1 publication Critical patent/WO2018193619A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/08—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 an elevator sheave provided with a sheave piece and a method for assembling the elevator sheave.
  • a method of dividing a rim having a sheave groove on the outermost periphery of a sheave into several sheave pieces is known in order to improve the exchangability of the sheave. ing. That is, a plurality of sheave pieces are attached to the boss portion of the sheave, and when the sheave piece is damaged, only the damaged sheave piece is replaced. As a result, it is not necessary to replace the entire sheave, so that the working time and cost can be reduced.
  • Patent Document 1 describes a sheave in which a plurality of sheave pieces are provided via an elastic polymer material or air with respect to a boss portion of the sheave. Elastic polymer material or air is provided to allow the sheave piece to move in the circumferential direction of the sheave in response to changes in the length of the rope as the sheave continues to be used. ing.
  • the curvature of the inner circumference of the sheave piece and the curvature of the outer circumference of the boss part depend on the respective processing accuracy. It has been difficult to easily match the curvature of the inner periphery of the sheave piece with the curvature of the outer periphery of the boss portion.
  • an elastic polymer material or air is filled between the boss portion and the sheave piece.
  • the elastic polymer material is for preventing foreign matter from entering between the boss portion and the sheave piece. Therefore, this elastic polymer material does not have a function of matching the curvature of the inner periphery of the sheave piece with the curvature of the outer periphery of the boss portion.
  • the present invention has been made to solve the above-described problems, and provides an elevator sheave in which the curvature of the inner periphery of the sheave piece matches the curvature of the outer periphery of the boss portion. Objective. It is another object of the present invention to provide an elevator sheave assembly method capable of easily matching the curvature of the inner periphery of the sheave piece with the curvature of the outer periphery of the boss portion.
  • the elevator sheave according to the present invention includes a boss portion that is rotated together with the rotating shaft, a plurality of sheaves that are attached along the outer periphery of the boss portion, and each of which has a sheave groove on the outer peripheral side, and is less rigid than the sheave piece.
  • a pinch member, and a gap is provided between the sheave pieces, and the pinch member is disposed between the sheave piece and the boss portion.
  • an elevator sheave in which the curvature of the inner periphery of the sheave piece matches the curvature of the outer periphery of the boss portion. Moreover, the assembly method of the elevator sheave which can make the curvature of the inner periphery of a sheave piece match easily the curvature of the outer periphery of a boss
  • hub part can be provided.
  • FIG. 1 is a front view of an elevator hoisting machine provided with an elevator sheave according to Embodiment 1 of the present invention.
  • 1 is a front view of an elevator sheave according to Embodiment 1.
  • FIG. 3 is a cross-sectional view of a sheave piece taken along line III-III in FIG. 2. It is a figure explaining the process of sliding a pinching member on a boss
  • FIG. 1 is a front view of an elevator hoisting machine having an elevator sheave according to Embodiment 1 of the present invention.
  • the elevator hoisting machine 1 is provided on a machine room directly above the hoistway or on a hoisting machine stand 2 arranged at the bottom of the hoistway.
  • the elevator hoist 1 includes a hoist main body 3.
  • the hoisting machine main body 3 includes an elevator sheave 10 having a rotating shaft 11.
  • a main rope 4 is hung on the elevator sheave 10.
  • FIG. 2 is an enlarged view of the elevator sheave 10 in FIG.
  • the elevator sheave 10 includes a rotating shaft 11 and a boss portion 12 provided on the outer periphery of the rotating shaft 11.
  • Four arc-shaped sheave pieces 20 are provided on the outer side of the boss portion 12 along the outer periphery of the boss portion 12.
  • the sheave pieces 20 are respectively fixed to the boss portions 12 with bolts 14.
  • a resin sandwiching member 30 is provided between the sheave piece 20 and the boss portion 12.
  • the sandwiching member 30 is fixed to the sheave piece 20 with an adhesive.
  • the sheave piece 20 is provided with a pair of projecting members 21 that project toward the inner peripheral side of the sheave piece 20 at both ends in the circumferential direction.
  • the sandwiching member 30 is disposed between the pair of protruding members 21.
  • the sandwiching member 30 is made of a resin mold material. Thereby, compared with the case where rubber
  • the sheave piece 20 is made of metal. Therefore, the pinching member 30 has a lower rigidity. That is, the pinching member 30 is more easily deformed than the sheave piece 20. The pinching member 30 can be elastically deformed. A gap 15 is provided between the protruding members 21 of the adjacent sheave pieces 20.
  • FIG. 3 is a cross-sectional view in the width direction of the sheave piece 20 along the line III-III in FIG.
  • sheave ears 22 are provided at both left and right ends. Between the left and right sheave ears 22, a rope groove 23 composed of nine recesses is provided. The main ropes 4 are hung on the ropes 23, respectively.
  • the pinching member 30 can be elastically deformed. Therefore, when the curvature of the inner circumference of the sheave piece 20 does not match the curvature of the outer circumference of the boss portion 12, the pinching member 30 is elastically deformed, and the curvature of the inner circumference of the sheave piece 20 is changed to the outer circumference of the boss portion 12. Can match with curvature.
  • the force in the tangential direction applied to the sheave piece 20 is fixed by the fastening force of the bolt 14 and is also fixed by the frictional force between the sheave piece 20 and the boss portion 12.
  • the pinching member 30 can change the characteristics by adding a compounding material to the basic material and molding it.
  • a component that improves the friction coefficient with respect to the boss portion 12 can be selected.
  • An example of such a compounding material is hard particles.
  • the pinching member 30 may be deformed at the time of attachment or during use. When the pinching member 30 is deformed, the pinching member 30 protrudes from the sheave piece 20 in the circumferential direction. The protruding member 21 prevents the pinching member 30 from protruding from the sheave piece 20. As a result, the pinching member 30 and the sheave piece 20 are suppressed from shifting in the circumferential direction.
  • FIG. 4 is a diagram illustrating a process of sliding the pinching member 30 against the boss portion 12.
  • one of the pinching members 30 is represented by illustration.
  • the sandwiching member 30 and the sheave piece 20 are lightly attached to the boss portion 12 in this order.
  • a pressing device 40 having a spring 41 is prepared.
  • the pinching member 30 is pressed against the boss portion 12 via the sheave piece 20 by the spring 41 of the pressing device 40.
  • the boss 12 is pressed while rotating clockwise.
  • the pinching member 30 is finely shaved by the rotating boss portion 12, and the curvature of the inner periphery of the pinching member 30 matches the curvature of the outer periphery of the boss portion 12.
  • the sheave piece 20 is fixed to the boss portion 12.
  • the pinching member 30 is fixed to the sheave piece 20.
  • the curvature of the inner periphery of the sheave piece 20 matches the curvature of the outer periphery of the boss portion 12, and the sheave piece 20 is assembled to the boss portion 12.
  • the sheave piece 20 is pressed by the pressing device 40, there is a possibility of extending in the circumferential direction.
  • a gap 15 is provided between adjacent sheave pieces 20.
  • the slight elongation of the sheave piece 20 is absorbed by the gap 15. Therefore, the sheave piece 20 does not float from the boss portion 12 when the sheave pieces 20 come into contact with each other. Thereby, matching the curvature of the inner periphery of the sheave piece 20 with the curvature of the outer periphery of the boss portion 12 is not prevented.
  • the elevator sheave 10 is attached to a plurality of boss portions 12 that are rotated together with the rotating shaft 11 and along the outer periphery of the boss portion 12, and each has a rope groove 23 on the outer peripheral side. It has the vehicle piece 20 and the pinching member 30 whose rigidity is smaller than the sheave piece 20.
  • the gap 15 is provided between the sheave pieces 20, and the pinching member 30 is disposed between the sheave piece 20 and the boss portion 12.
  • the elevator sheave 10 in which the curvature of the inner periphery of the sheave piece 20 matches the curvature of the outer periphery of the boss portion 12 can be provided.
  • the sheave piece 20 includes a pair of projecting members 21 projecting toward the inner peripheral side of the sheave piece 20 at both ends in the circumferential direction. Yes. Thus, the pinching member 30 and the sheave piece 20 are prevented from being displaced in the circumferential direction by the pinching member 30 protruding from the sheave piece 20 in the circumferential direction.
  • the sandwiching member 30 is a resin mold material. Thereby, compared with rubber
  • the sandwiching member 30 is composed of a basic material and a blended material blended with the basic material, and the friction coefficient of the sandwiching member 30 with respect to the boss portion 12 is larger than the friction coefficient of the basic material with respect to the boss portion 12.
  • the pinching member 30 in which the compounding material capable of increasing the coefficient of friction with respect to the boss portion 12 is shifted in the circumferential direction with respect to the boss portion 12 is further compared with that before the compounding material is added. Strongly suppressed. Accordingly, the sheave piece 20 to which the pinching member 30 is fixed is further strongly suppressed from being displaced in the circumferential direction with respect to the boss portion 12.
  • the boss portion 12 rotated together with the rotary shaft 11, the sheave piece 20 having the sheave groove 23 on the outer peripheral side, and the rigidity less than the sheave piece 20.
  • the curvature of the inner periphery of the sheave piece 20 can be easily matched with the curvature of the outer periphery of the boss portion 12.
  • the pinching member 30 may be fixed to the sheave piece 20 with screws. Further, the sandwiching member 30 may be made by sintering a powder of Cu, Ni, Sn or the like. In this case, hard particles can be used as the compounding material.

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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

L'invention concerne une poulie destinée à un ascenseur comprenant : un bossage entraîné en rotation conjointement avec un arbre rotatif ; une pluralité de pièces de poulie montée sur la périphérie externe du bossage et ayant chacune une rainure de câble sur leur côté périphérique externe ; et des éléments saisis ayant une rigidité inférieure à celle des pièces de poulie. Des espaces sont ménagés entre les pièces de poulie, et les éléments saisis sont disposés entre le bossage et les pièces de poulie. Cette configuration permet à la courbure des périphéries internes des pièces de poulie de coïncider avec la courbure de la périphérie externe du bossage. De plus, dans cette poulie destinée à un ascenseur, chacune des pièces de poulie a, au niveau de ses extrémités circonférentielles opposées, une paire d'éléments en saillie faisant saillie vers la périphérie interne de la pièce de poulie, et un élément saisi est disposé entre la paire d'éléments en saillie. Par conséquent, un déplacement circonférentiel des pièces de poulie avec le bossage est empêché.
PCT/JP2017/016053 2017-04-21 2017-04-21 Poulie destinée à un ascenseur et procédé d'assemblage de poulie destinée à un ascenseur WO2018193619A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/016053 WO2018193619A1 (fr) 2017-04-21 2017-04-21 Poulie destinée à un ascenseur et procédé d'assemblage de poulie destinée à un ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/016053 WO2018193619A1 (fr) 2017-04-21 2017-04-21 Poulie destinée à un ascenseur et procédé d'assemblage de poulie destinée à un ascenseur

Publications (1)

Publication Number Publication Date
WO2018193619A1 true WO2018193619A1 (fr) 2018-10-25

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PCT/JP2017/016053 WO2018193619A1 (fr) 2017-04-21 2017-04-21 Poulie destinée à un ascenseur et procédé d'assemblage de poulie destinée à un ascenseur

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WO (1) WO2018193619A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5247251A (en) * 1975-10-07 1977-04-14 Westinghouse Electric Corp Elevator device
US4030569A (en) * 1975-10-07 1977-06-21 Westinghouse Electric Corporation Traction elevator system having cable groove in drive sheave formed by spaced, elastically deflectable metallic ring members
JPS5484763U (fr) * 1977-11-28 1979-06-15
JPS5815435B2 (ja) * 1975-10-07 1983-03-25 ウエスチングハウス エレクトリック コ−ポレ−ション エレベ−タ装置
JP2012193770A (ja) * 2011-03-15 2012-10-11 Bando Chemical Industries Ltd 複合ｖベルト
JP2015031315A (ja) * 2013-07-31 2015-02-16 バンドー化学株式会社 平ベルト

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5247251A (en) * 1975-10-07 1977-04-14 Westinghouse Electric Corp Elevator device
US4030569A (en) * 1975-10-07 1977-06-21 Westinghouse Electric Corporation Traction elevator system having cable groove in drive sheave formed by spaced, elastically deflectable metallic ring members
JPS5815435B2 (ja) * 1975-10-07 1983-03-25 ウエスチングハウス エレクトリック コ−ポレ−ション エレベ−タ装置
JPS5484763U (fr) * 1977-11-28 1979-06-15
JP2012193770A (ja) * 2011-03-15 2012-10-11 Bando Chemical Industries Ltd 複合ｖベルト
JP2015031315A (ja) * 2013-07-31 2015-02-16 バンドー化学株式会社 平ベルト

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