EP1514828B1 - Elevator with pulley assembly - Google Patents

Elevator with pulley assembly Download PDF

Info

Publication number
EP1514828B1
EP1514828B1 EP04019420.1A EP04019420A EP1514828B1 EP 1514828 B1 EP1514828 B1 EP 1514828B1 EP 04019420 A EP04019420 A EP 04019420A EP 1514828 B1 EP1514828 B1 EP 1514828B1
Authority
EP
European Patent Office
Prior art keywords
elevator
rope
pulleys
counterweight
elevator car
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
EP04019420.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1514828A3 (en
EP1514828A2 (en
Inventor
Jorma Mustalahti
Esko 'aulanko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kone Corp
Original Assignee
Kone Corp
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 Kone Corp filed Critical Kone Corp
Publication of EP1514828A2 publication Critical patent/EP1514828A2/en
Publication of EP1514828A3 publication Critical patent/EP1514828A3/en
Application granted granted Critical
Publication of EP1514828B1 publication Critical patent/EP1514828B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • B66B11/005—Arrangement of driving gear, e.g. location or support in the hoistway on the car
    • 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
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • B66B11/0055—Arrangement of driving gear, e.g. location or support in the hoistway on the counterweight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings

Definitions

  • the present invention relates to an elevator as defined in the preamble of claim 1.
  • a widely used elevator suspension solution is to suspend the elevator car and counterweight on the hoisting ropes by means of a diverting pulley or diverting pulleys because in this way the elevator hoisting machine can be designed according to a lower torque requirement than if the elevator car and counterweight were suspended without such suspending diverting pulleys.
  • the suspension of the elevator car is often implemented by using a pair of diverting pulleys to guide a large rope loop or a rope loop passed under the elevator car so that it comprises a rope portion between the diverting pulleys which in most cases is substantially horizontal and that the ropes go upwards from the diverting pulleys.
  • This type of solutions are known e.g. from specifications EP 0 631 967 and EP 0 749 931 .
  • An object of the invention is to provide an economical and both structurally and functionally simple method of aligning the ropes of a rope portion between the diverting pulleys of a pair of diverting pulleys mounted on an elevator car or counterweight and the rope grooves of the pair of rope pulleys with each other. Another object is to position mutually corresponding rope grooves of the pair of diverting pulleys in the same plane of rotation. A further object of the invention is to enable an aligned positioning of the pulleys forming the pair of diverting pulleys mounted on the elevator car and/or counterweight.
  • Yet another object of the invention is to provide a method of positioning the rope pulleys to be mounted on the elevator car and/or counterweight and engaged by the same hoisting rope loop with respect to each other and preferably also with respect to the elevator car or counterweight so that they can be fixed to the elevator car or respectively the counterweight.
  • An object of the invention is to develop the elevator without machine room so as to allow more efficient space utilization in the building and elevator shaft while at the same time facilitating installation and maintenance. It is also an object to increase the reliability of alignment of the diverting pulleys and to enable the use of simpler fastening structures for mounting the diverting pulleys, especially in elevator solutions that use diverting pulleys having a clearly smaller diameter than those conventionally used at present.
  • the elevator of the invention comprises a set of hoisting ropes and an elevator car suspended by the hoisting ropes. Especially in the case of traction sheave elevators, it is advantageous to use a counterweight.
  • the suspension of the elevator car and/or counterweight on the hoisting ropes has been implemented using a pair of rope pulleys.
  • Each one of the rope pulleys forming the pair of rope pulleys is separately rotatably mounted with bearings on its mounting frame, which may be a box, a shaft support or extension or other frame part supporting the pulley on a fixing point or fixing support on the elevator car or counterweight, which may be e.g. a car or counterweight frame supporting the elevator car or counterweight, or some other suitable fixing point in these.
  • Elevator cars without counterweight, especially light-weight elevator cars often have reinforced parts for distributing the loads, and a mounting support can be easily formed in such a reinforced part.
  • the mounting frame is secured to the car using screws, bolts and nuts, rivets, glue or by some other method.
  • bolt and nut mounting it is often necessary to provide suitable holes for the bolts in a suitable part of the mounting frame.
  • the mounting frame sets the mutual orientation of the plane of rotation of the rope pulley and the fixing part of an aligning means provided in the frame so that when two rope pulleys are connected as a pair by means of one aligning means, the planes of rotation of both rope pulleys coincide with a sufficient accuracy, which in practice means that the direction of the ropes of the rope portion between the pulleys forming the pair of rope pulleys differs very little from the plane of rotation of the rope pulley as the ropes meet the rope groove of the rope pulley. A very slight difference like this is clearly under one degree. By applying the invention, it is easy to achieve a positioning of rope pulleys with a difference or at most 1/7 degree or even less than 1/10 degree.
  • connection can be implemented using a sleeve provided in the mounting frame.
  • the sleeve and the round bar or tube to be placed in it can be quite easily so fitted that the tolerance between them ensures accurate alignment and the sleeve can be placed accurately in position in the mounting frame.
  • Fig. 1 presents an elevator structure applying the invention.
  • the elevator is preferably an elevator without machine room, with the drive machine 6 placed in the elevator shaft.
  • the elevator presented here is a traction sheave elevator with machine above.
  • the passage of the hoisting ropes 3 is as follows: One end of the ropes is immovably secured to fixing point 13 in the upper part of the shaft above the path of a counterweight 2 moving along counterweight guide rails 11, said fixing point being supported e.g.
  • the ropes go further upwards to a fixing point 14 in the upper part of the shaft, where the second end of the ropes 3 is immovably secured. Of the diverting pulleys 4, only one is visible.
  • the diverting pulleys of the pair of diverting pulleys suspending the elevator car are interconnected by an aligning bar 21.
  • the fixing point 13 in the upper part of the shaft, the traction sheave 7 and the diverting pulley 9 suspending the counterweight on the ropes are preferably so disposed with respect to each other that both the rope portion going from fixing point 13 to the counterweight 2 and the rope portion going from the counterweight 2 to the traction sheave 7 are aligned substantially in the direction of the path of the counterweight 2.
  • Another preferred solution is one in which the fixing point 14 in the upper part of the shaft, the traction sheave 7 and the diverting pulleys 4 suspending the elevator car on the ropes are so disposed with respect to each other that both the rope portion going from the fixing point 14 to the elevator car and the rope portion going from the elevator car 1 to the traction sheave 7 are substantially in alignment with the path of movement of the elevator car 1.
  • no auxiliary diverting pulleys are needed to guide the passage of the ropes in the shaft.
  • the effect of the rope suspension on the elevator car 1 is substantially centric as far as the diverting pulleys 4 suspending the elevator car are disposed substantially symmetrically with respect to the vertical center line passing through the mass center of the elevator car 1.
  • the drive machine 6 preferably placed in the elevator shaft is of a flat construction, in other words, it has a small thickness in relation to its width and/or height, or it is at least slim so that it can be accommodated between the elevator car and a wall of the elevator shaft.
  • the drive machine can be placed e.g. so that the slim machine is partly or completely between an imaginary extension of the elevator car and a shaft wall.
  • Equipment needed for the supply of power to the motor driving the traction sheave 7 as well as equipment needed for the control of the elevator can advantageously be placed in the elevator shaft, as such equipment can be mounted in a common instrument panel 8, or they can be placed separately from each other or integrated partly or completely with the drive machine 6.
  • the drive machine may be of geared or gearless type.
  • a preferable solution is a gearless machine comprising a motor provided with permanent magnets.
  • the drive machine can be secured in place to a wall or the ceiling of the elevator shaft, to a guide rail or guide rails or to some other structure, such as a beam or frame. If the elevator were to be implemented as an elevator with machine below, then another possibility would be to mount the machine on the floor of the elevator shaft.
  • Fig. 1 represents a preferable 2:1 suspension arrangement, but the invention can also be implemented in the case of an elevator having a higher suspension ratio of the elevator car and/or counterweight, e.g. 4:1. The invention can also be applied in elevators without counterweight.
  • Fig. 2 presents a rope pulley 4 or 9 belonging to the pair of rope pulleys on the elevator car or counterweight, with the ropes of the set of hoisting ropes 3 running in the rope grooves of the rope pulley.
  • the rope pulley is rotatably mounted with bearings on a box-shaped mounting frame 23 of the rope pulley.
  • the mounting frame has a first connecting part 24 for attachment to a mounting support provided in the elevator car or counterweight and a second connecting part 25 for attachment to a separate aligning means 20 or 21 connecting the two rope pulleys of a pair of rope pulleys.
  • the mounting frames at either end of the tube can be oriented in the same direction with respect to the axis of the tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP04019420.1A 2003-09-15 2004-08-16 Elevator with pulley assembly Expired - Fee Related EP1514828B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20031310A FI115720B (sv) 2003-09-15 2003-09-15 Hiss
FI20031310 2003-09-15

Publications (3)

Publication Number Publication Date
EP1514828A2 EP1514828A2 (en) 2005-03-16
EP1514828A3 EP1514828A3 (en) 2009-03-11
EP1514828B1 true EP1514828B1 (en) 2016-01-06

Family

ID=27838975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04019420.1A Expired - Fee Related EP1514828B1 (en) 2003-09-15 2004-08-16 Elevator with pulley assembly

Country Status (4)

Country Link
EP (1) EP1514828B1 (sv)
CN (1) CN100548853C (sv)
ES (1) ES2560854T3 (sv)
FI (1) FI115720B (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5805508B2 (ja) * 2011-11-30 2015-11-04 株式会社日立製作所 エレベーター装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640949B1 (sv) * 1988-12-22 1991-03-15 Otis Elevator Co
FI94123C (sv) * 1993-06-28 1995-07-25 Kone Oy Drivskivehiss
FI107250B (sv) * 1997-12-23 2001-06-29 Kone Corp Hisskorg
JP4291474B2 (ja) * 1999-10-25 2009-07-08 東芝エレベータ株式会社 ダブルデッキエレベーター

Also Published As

Publication number Publication date
EP1514828A3 (en) 2009-03-11
FI20031310A (sv) 2005-03-16
FI20031310A0 (sv) 2003-09-15
FI115720B (sv) 2005-06-30
ES2560854T3 (es) 2016-02-23
CN100548853C (zh) 2009-10-14
CN1597487A (zh) 2005-03-23
EP1514828A2 (en) 2005-03-16

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