摘要:
In an elevator system, a belt-type carrier is guided over a pulley. In this case, longitudinal elevations of the belt-type carrier engage into longitudinal recesses on a roller contact surface. The roller has at least one retaining element, which is arranged laterally to the contact surface. In this case, a distance between an outermost longitudinal recess and the retaining element is less than half a longitudinal recess width of the roller contact surface.
摘要:
In an elevator system, a belt-type suspension device is guided over at least one pulley. A contact surface of the pulley has an anisotropic structure for interacting with the belt-type suspension device. A friction coefficient between the suspension device and the contact surface in a circumferential direction of the pulley is greater than a friction coefficient between the suspension device and the contact surface in an axial direction of the pulley.
摘要:
An elevator system includes a suspension traction device guided over at least one pulley and at least one counter pulley located adjacent to the pulley. The suspension traction device is guided between the pulley and the at least one counter pulley.
摘要:
An elevator maintenance kit is provided for surfacing an elevator sheave that engages with an elevator tension member. The kit includes a substrate with an adhesive backing, and a substrate applicator that is operable to apply the substrate to the sheave as the sheave is rotated. The adhesive backing is operable to attach the substrate to the sheave during the sheave rotation.
摘要:
An elevator system includes a safety device by which a rotation and/or translation of a fixed bearing part of a rotary bearing of a deflection roller, which is associated with a counterweight, can be detected. An alarm signal is generated by the safety device when the position of the bearing part deviates from a predeterminable value.
摘要:
An elevator system includes a suspension traction device guided over at least one pulley and at least one counter pulley located adjacent to the pulley. The suspension traction device is guided between the pulley and the at least one counter pulley.
摘要:
An elevator system includes an elevator car, a motor, and traction sheave operably connected to the motor to drive rotation of the traction sheave. A belt is operably connected to the elevator car and in frictional contact with the traction sheave to urge movement of the elevator car. One or more deflector sheaves are located between the traction sheave and the elevator car over which the belt is routed to guide the belt to the elevator car. The one or more deflector sheaves include an outer sheave surface having a distance from a sheave axis that varies along a width of the traction sheave. The outer surface includes a first portion having a first coefficient of friction and a second portion having a second coefficient of friction less than the first coefficient of friction, the first portion guiding an elevator belt toward a lateral center of the outer surface.
摘要:
An arrangement for guiding belt-shaped ropes of an elevator includes a plurality of belt-shaped ropes; and a rope wheel deck including a frame mounted on a structure of an elevator, a plurality of rope wheels for guiding ropes of the elevator, and plurality of bearings, wherein the rope wheels are cambered and mounted coaxially on the frame via the bearings such that they are rotatable relative to the frame as well as relative to each other, wherein only one belt-shaped rope passes around each of said rope wheels of the rope wheel deck. An elevator implements the arrangement for guiding belt-shaped ropes of an elevator.
摘要:
An elevator includes a hoistway; an elevator car vertically movable in the hoistway; a balancing weight vertically movable in the hoistway; a first roping including one or more belt-shaped first ropes interconnecting the elevator car and balancing weight, each of said one or more ropes passing around one or more first rope wheels mounted in proximity of the upper end of the hoistway, each of said one or more first ropes including one or more load-bearing members, each of which load-bearing members being made of composite material including reinforcing fibers embedded in a polymer matrix; a second roping including one or more toothed belt-shaped second ropes interconnecting the elevator car and balancing weight, each passing around one or more second rope wheels mounted in proximity of the lower end of the hoistway, each of said one or more second ropes including one or more load-bearing members, each of which load-bearing members being made of composite material including reinforcing fibers embedded in a polymer matrix; said one or more second rope wheels including a toothed drive wheel engaging said one or more toothed belt-shaped second ropes; and a motor for rotating the drive wheel.
摘要:
The invention relates to a method for installing one or more ropes of an elevator, wherein a pulley of a pulley arrangement is roped, which pulley arrangement comprises a pulley having a shaft for mounting it rotatably on a support frame, the shaft having a first end and a second end; and a support frame having a first supporting wall and a second supporting wall spaced apart and having a pulley space between them, in which pulley space the pulley is mounted, the first end of the shaft extending into a first opening of the first supporting wall, and the second end of the shaft extending into a second opening of the second supporting wall. In which method one or more ropes is/are guided to pass around said pulley. The method comprises steps wherein a free space is arranged on the axial side of the pulley and the second end of the shaft sufficiently large to allow a rope to be moved transversely past the axial side of the pulley and the second end of the shaft in the pulley space, said step comprising at least enabling axial movement of the shaft, and thereafter moving the shaft axially so that the second end of the shaft retracts from the second opening, into the pulley space; and thereafter said rope(s) is/are moved in the transverse direction thereof in the pulley space past the axial side of the pulley and the second end of the shaft; and thereafter the shaft is moved axially so that the second end of the shaft penetrates back into the second opening; and thereafter the shaft is fixed at least axially immovable. The invention relates also to a pulley arrangement of an elevator.