Abstract:
An elevator system includes an elevator shaft, an elevator car arranged in the elevator shaft for movement, a drive unit for moving the elevator car, a machine platform that can be fastened in the elevator shaft and can be lifted along the elevator shaft, wherein the drive unit is fastened to the machine platform, and at least one lifting device for lifting the machine platform. The at least one lifting device includes a supporting element, a strand jack for moving along the supporting element, and an anchor for fastening the supporting element in the elevator shaft, wherein the supporting element is fastened in the elevator shaft by the anchor and the strand jack is arranged to move along the supporting element.
Abstract:
The invention relates to a method and arrangement for installing an elevator, which comprises an elevator car arranged to run in an elevator shaft along the guide rails, a balancing weight connected to the elevator car with suspension ropes and with a traction member, the elevator comprising further a hoisting machinery with a driving wheel in the lower part of the elevator shaft below the elevator car, the installing comprising one or more jumps to make the elevator serve higher floors. During the jump phase extensions needed for the suspension ropes are taken from first supply reels and extensions needed for the traction member are taken from second supply reels.
Abstract:
A support member configured for use in a machine room of an elevator system is provided including a base having a car end and a counterweight end. The counterweight end is arranged substantially parallel to a wall of the machine room, and the counterweight end is arranged at an angle relative to the car end. An idler sheave having a plurality of grooves is mounted to the base in an orientation generally parallel to the car end. The idler sheave is configured to rotate about a first axis of rotation. A plurality of individual sheaves is mounted to the based in a staggered configuration substantially complementary to the angle of the counterweight end relative to the car end. Each individual sheave is configured to rotate about a second axis of rotation parallel to the first axis of rotation.
Abstract:
An elevator renovation method, which is capable of reducing a renovation period and enabling effective use of a space when an existing hydraulic elevator is renovated to a non-hydraulic elevator. The elevator renovation method involves renovating a hydraulic elevator in which a plunger provided integrally with a car is hydraulically driven to a non-hydraulic elevator. The elevator renovation method includes; providing a driving device for generating a driving force for raising the car; leaving the plunger so that the plunger can be raised and lowered inside an existing jack; and obtaining the non-hydraulic elevator by exerting the driving force of the driving device in a direction in which the plunger is moved up to raise the car.
Abstract:
A method of manufacturing an elevator includes installing a movable supporting platform and an elevator car in the elevator hoistway; taking the elevator car into use to serve passengers and/or to transport goods; removing the elevator car from use; changing the service range of the elevator car to reach higher up in the elevator hoistway by lifting the supporting platform higher up in the elevator hoistway; and taking the elevator car back into use. The elevator is reeved to include construction-time hoisting roping, which includes one or more ropes, the longitudinal power transmission capacity of which is based at least essentially on non-metallic fibers in the longitudinal direction of the rope. In the method, guide rails to be fixed with guide rail brackets can additionally be installed by the aid of an installation device. An elevator arrangement can be used to perform the method.
Abstract:
An elevator modification work apparatus for disposing a coupling shaft mounting aperture on an end surface of a motor shaft includes a positioning member on which a recess portion is disposed into which the motor shaft is fitted. Displacement of the positioning member relative to the motor shaft in a direction that is perpendicular to the axis of the motor shaft is restricted by fitting the end portion of the motor shaft into the recess portion. A motor shaft positioning aperture that passes through the positioning member in a direction that intersects a bottom surface of the recess portion is disposed on the recess portion. A position at which to dispose the coupling shaft mounting aperture on the end surface of the motor shaft is specified by a position of the motor shaft positioning aperture when the end portion of the motor shaft is fitted into the recess portion.
Abstract:
The present general inventive concept provides an elevator system and method that provides minimal vibration during use thereof, simplified installation and maintenance, and a machine to power the system supported by a machine-support structure mounted between counterweight guide rails.
Abstract:
An elevator installation and a method of arranging a drive motor for moving a car and a counterweight in a shaft includes mounting the drive motor on a crossbeam fastened at end regions to a pair of counterweight guides and fastened at a center region to at least one car guide.
Abstract:
The arrangement comprises a hoisting machinery, an electric cabinet, and cable drums positioned at the bottom of the shaft, an elevator car and a counterweight moving in the shaft, upper pulleys and rope suspenders fixed at an upper end of the lifting height of the construction elevator, and hoisting ropes being fixed to the rope suspenders during the operation of the construction elevator and gliding through the rope suspenders during an upwards jump of the construction elevator in the shaft. The hoisting ropes pass in a 2:1 roping between the car, the upper pulleys, the traction sheave, the counterweight, and the rope suspenders.
Abstract:
The invention relates to a method for constructing an elevator comprising installing comprising installing an elevator car, a counterweight, one or more vertically oriented guide rail lines, a hoisting machine in a first position, and a first hoisting roping for being moved by the hoisting machine, said installing further comprising connecting the first hoisting roping to the elevator car and counterweight; and thereafter transporting passengers and/or goods with the elevator car vertically in the hoistway while the hoisting machine is in said first position; and thereafter stopping said transporting; and thereafter removing said hoisting machine from said first position and the first roping from the hoistway, said removing comprising disconnecting the first hoisting roping from the elevator car and counterweight; wherein the method further comprises installing a hoisting machine in a second position which is higher than the first position, and a second roping for being moved by the hoisting machine, said installing comprising, connecting the second hoisting roping to the elevator car and counterweight; and thereafter transporting passengers and/or goods with the elevator car vertically in the hoistway while the hoisting machine is in said second position, said transporting comprising moving the elevator car with the hoisting machine and the second hoisting roping.