Abstract:
The invention relates to a method for installing/securing at least one diverting pulley of an elevator or equivalent comprising at least one rope pulley. According to the method, the diverting pulley together with the ropes or in a rigged state is arranged near the elevator or in the elevator shaft and the diverting pulley is placed on a mounting point by using a quick coupling. The invention also relates to an elevator or equivalent comprising at least one rope pulley (5) mounted in place by means of a frame structure (3) and a set of ropes (7, 7a, 7b) consisting of a number of ropes, the passage of which has been arranged using at least one set of diverting pulleys (6) in such manner that the set of diverting pulleys (6) has been arranged to be detachably mounted by means of a quick coupling. In addition, the invention relates to the use of a quick coupling for placing a set of diverting pulleys (6) on a fastening point in an elevator or equivalent.
Abstract:
A pallet arrangement for a travelator comprises a pallet body comprising a profiled bar having a predetermined size, at least one surface plate attached to the pallet body and forming a wearing surface, a wheel mounted on at least one end of the pallet body, and a fastening element mounted on at least one end of the pallet body. The fastening element is adapted to couple the pallet to an actuating device.
Abstract:
An elevator having an elevator car with a car frame on which are mounted a first set of diverting pulleys from which the hoisting ropes go downwards and a second set of diverting pulleys from which the hoisting ropes go upwards. The rope tension in the rope portions going from the diverting pulleys of the first set is smaller than the rope tension in the rope portions going from the diverting pulleys of the second set by a specified ratio. According to the invention, the diverting pulleys of the first set are at a larger average distance from the car frame than the diverting pulleys of the second set. In a possible inventive arrangement, the distance of an up-direction diverting pulley from the car frame is smaller by a specified ratio than the distance a corresponding down-direction diverting pulley.
Abstract:
An arrangement for mounting a stator winding in a stator of an elevator machine motor, where the stator may include a stator frame with a plurality of stator teeth and one or more slots between given stator teeth. The arrangement may include a winding frame configured to support the stator winding so that the winding is fitted in the slots and is adapted to be secured by fastening elements provided in the slots. The winding frame may include a frame bottom in contact with one or more side faces of given slots. The arrangement may include one or more flexible locking elements projecting from the frame bottom and adapted to be fit into holes provided in the slots. The locking elements may be inserted into corresponding holes to lock the winding frame and stator winding to the stator frame, as the winding frame is being pushed into the slots.
Abstract:
An elevator, without counterweight and preferably an elevator without machine room, in which the hoisting machine (10) engages the hoisting ropes (3) by means of a traction sheave (11), the elevator car (1) being at least partially supported by the hoisting ropes serving as a means of moving the elevator car (1). The elevator car is suspended on the hoisting ropes (3) by means of at least one diverting pulley (13,14) from whose rim the hoisting ropes go upwards from both sides and at least one diverting pulley (7,5) from whose rim the hoisting ropes go downwards from both sides of the diverting pulley, and in which elevator the guide rails are arranged on one side of the elevator car.
Abstract:
The invention also relates to a method for ensuring the internal tightness of an elevator hoisting rope (9) in an elevator provided with hoisting ropes (9). According to the method, each hoisting rope (9) is tightened after installation of the elevator to a desired tightness by twisting the rope by the required number of turns in the twisting direction of the braiding, in such manner that the first end of the rope (9) remains fastened to its anchorage while the second end of the rope is free so as to allow tightening.
Abstract:
A hoisting machine for an elevator, mounted on and fastened to one side of an elevator or counterweight guide rail. The machine comprises at least an elevator motor and a traction sheave driving the elevator ropes, and two operating brakes of the elevator. The hoisting machine is fastened to the guide rail via the operating brakes or by a point in the immediate vicinity of the operating brakes.
Abstract:
Traction sheave elevator consisting of an elevator car moving along elevator guide rails, a counterweight moving along counterweight guide rails, a set of hoisting ropes (3) on which the elevator car and counterweight are suspended, and a drive machine unit (6) driving a traction sheave (7) acting on the hoisting ropes (3) and placed in the elevator shaft. The drive machine unit (6) is of a flat construction. A wall of the elevator shaft is provided with a machine space with its open side facing towards the shaft, the essential parts of the drive machine unit (6) being placed in the space. The hoisting unit (9) of the traction sheave elevator consists of a substantially discoidal drive machine unit (6) and an instrument panel (8) mounted on the frame (20) of the hoisting unit.
Abstract:
An elevator drive machine includes multiple electric motors and a traction sheave. The traction sheave is placed between the motors. With this arrangement, a higher torque is generated by the drive machine as compared to conventional solutions. Furthermore, an elevator arrangement in which such a drive is utilized exhibits efficient space utilization.
Abstract:
An elevator drive machine includes a traction sheave and an electromechanical apparatus having at least two electric motors for driving the traction sheave. The traction sheave and the weight applied to it via the elevator ropes are supported by bearings between the stators and rotors of the electric motors driving the traction sheave of the drive machine.