摘要:
A people mover, such as a travelator, moving ramp or escalator, comprising a conveyor (1). The conveyor comprises a frame (6), which comprises a first frame part (7), which is secured to a fixed structure, and a second frame part (8), which is mounted to be movable in relation to the first frame part in its longitudinal direction, said first and second frame parts being arranged one after the other. Transport platforms (11) are secured to a first drive element (9) and a second drive element (10), said drive elements being endless elements. A first tensioning device (16) tensions the first drive element (9) and a second tensioning device (17) tensions the second drive element (10), and each tensioning device acts between the first frame part (7) and the second frame part (8). The conveyor (1) comprises mechanical transmission elements (18) between the first tensioning device (16) and the second tensioning device (17) for keeping the stroke lengths of the first and the second tensioning movements equal.
摘要:
An elevator without counterweight, in which elevator the elevator car is guided by guide rails and suspended by means of diverting pulleys on hoisting ropes so that the elevator has rope portions of the hoisting ropes going upwards and downwards from the elevator car and a number of diverting pulleys in the upper and lower parts of the elevator shaft. The elevator has a drive machine placed in the elevator shaft and provided with a traction sheave. The elevator has a compensating device acting on the hoisting ropes for equalizing and/or compensating the rope tension and/or rope elongation. Diverting pulleys are mounted on the elevator car near two side walls, and the rope portions from the traction sheave, from the diverting pulleys in the lower part of the elevator shaft and from the diverting pulleys in the upper part of the elevator shaft to the diverting pulleys mounted on the elevator car extend in a substantially vertical direction, and the rope portions connecting the rope portions from one side of the elevator car to its other side are rope portions between the diverting pulleys mounted near different side walls on the elevator car.
摘要:
A counterweight and an elevator car are suspended on a set of hoisting ropes. The elevator comprises one or more rope pulleys provided with rope grooves, one of said pulleys being a traction sheave driven by a drive machine and moving the set of hoisting ropes. At least one of the rope pulleys is provided with a coating bonded to the rope pulley and containing the rope grooves, said coating having a thickness that, at the bottom of the rope groove, is substantially less than half the thickness of the rope running in the rope groove and a hardness less than about 100 shoreA and greater than about 60 shoreA. In a preferred solution, the traction sheave is a rope pulley like this.
摘要:
The invention relates to a method and apparatus for adjusting the inter-car distance in a double-deck elevator provided with hoisting ropes (2), in which elevator the hoisting ropes (2) move a car frame (3) supporting the elevator cars (6 and 7) along guide rails (5). The vertical inter-car distance between the elevator cars (6 and 7) is adjusted by moving at least one of the elevator cars (6 or 7) in relation to the car frame (3) by pulling the elevator car to be moved upwards and lowering the elevator car to be moved downwards by means of an adjusting rope (13).
摘要:
The invention relates to a method and an apparatus for changing the direction of motion of a pallet (1) moving on wheels (5a, 5b, 6a, 6b) in a travelator or equivalent, in which travelator or equivalent the pallets moving in the traveling direction move at a different level than the pallets moving in the return direction and the direction of motion of the pallets is changed at the end of the travelator or equivalent keeping the pallet continuously in substantially the same orientation during the direction change. During direction change the trailing end of the pallet (1) as seen in the traveling direction is guided by positive control from one level of the traveling direction to the other level by utilizing a supporting element (8) supporting the pallet by a wheel of the pallet, said supporting element (8) being positioned by means of a positioning device (26) into an advantageous position for meeting the wheel of the pallet.