摘要:
The invention concerns an overspeed governor and an elevator comprising the same. The overspeed governor comprises a governor sheave, a permanent magnet rotor coupled to the governor sheave, a stator arranged to interact with the permanent magnet rotor, a safety gear for braking movement of an elevator car and a safety rope fixed to the safety gear and arranged to run via the governor sheave. Said stator includes a winding adapted to exert, when energized, to the permanent magnet rotor a braking force that brakes movement of the permanent magnet rotor and, consequently, movement of the governor sheave and the safety rope, thereby activating the safety gear.
摘要:
An elevator comprising a hoistway (H); an elevator car (1) vertically movable in the hoistway (H); a counterweight (2) vertically movable in the hoistway (H); at least one tightening wheel (3) located in the lower end of the hoistway (H); at least one rope wheel (6) located in or at least in proximity of the upper end of the hoistway (H); a first roping (R) interconnecting the car (1) and counterweight (2) and passing around the at least one rope wheel (6) located in or at least in proximity of the upper end of the hoistway (H); a second roping (4) interconnecting the car (1) and counterweight (2) and passing around the at least one tightening wheel (3), the tightening wheel being mounted movably back and forth in a first direction (A) towards the second roping (4), and in a second direction (B) away from the second roping (4); and means (5,5') for exerting force (F 5 , F 5' ) on the tightening wheel (3) to move it in the first direction (A) so as to tighten the second roping (4). The elevator further comprises means for limiting the movement speed of the tightening wheel (3) towards the first direction (A) and the second direction (B).
摘要:
The invention relates to an elevator installation, comprising a shaft, in which a first car (22) and a second car (24) arranged below the first car can be moved up and down in a vertical direction along a common track separately from each other. The first car is coupled to a first counterweight (28) by means of first support cables (26) or support belts and by means of first under cables (62; 122) or under belts and the second car is coupled to a second counterweight (42) by means of second support cables (40) or support belts and second under cables or under belts. In order to further develop the elevator installation in such a way that the elevator installation has simpler cable or belt guidance for the first under cables or under belts, the first under cables or under belts according to the invention have a first and a second cable end or belt end (64, 90, 124, 126), wherein the first under cables or under belts are fastened either to the first counterweight or to the first car by means of the two cable ends or belt ends and are guided around at least one roller (82, 128, 130) arranged on the underside of the first car or on the first counterweight.
摘要:
The invention relates to an arrangement for installing a set of elevator ropes (R), the arrangement comprising one or more rope reels (3) storing the set of elevator ropes (R); and a rope wheel arrangement (A) comprising rope wheels (5,6); and a first (4) and a second (7) rope guides detachably mounted in proximity of said rope wheels (5, 6), wherein the ropes (R) pass from the reels (3) to said rope wheels (5, 6) via the first rope guide (4), which guides the ropes (R) to converge a rim of said rope wheels (5, 6) substantially vertically; turn around said rope wheels (5,6) and pass away from the rope wheels (5,6) via the second rope guide (7), which guides the ropes (R) to diverge from a rim of said rope wheels (5, 6) substantially vertically. The invention further relates to a method for installing a set of elevator ropes (R) wherein said arrangement is utilized and said rope guides (4, 7) are removed before the end of the installation of the ropes (R).
摘要:
Elevator, which comprises a hoistway (H); an elevator car (1) vertically movable in the hoistway (H); a balancing weight (2) vertically movable in the hoistway (H); a first roping (3) comprising one or more belt-shaped first ropes (r) interconnecting the elevator car (1) and balancing weight (2), each of said one or more ropes (r) passing around one or more first rope wheels (4) mounted in proximity of the upper end of the hoistway (H), each of said one or more first ropes (r) comprising one or more load-bearing members (c), each of which load-bearing members (c) being made of composite material comprising reinforcing fibers (F) embedded in a polymer matrix (m); a second roping (5) comprising one or more toothed belt-shaped second ropes (R) interconnecting the elevator car (1) and balancing weight (2), each passing around one or more second rope wheels (6,7) mounted in proximity of the lower end of the hoistway (H), each of said one or more second ropes (R) comprising one or more load-bearing members (C), each of which load-bearing members being made of composite material comprising reinforcing fibers (F) embedded in a polymer matrix (m); said one or more second rope wheels (6,7) comprising a toothed drive wheel (6) engaging said one or more toothed belt-shaped second ropes (R); and a motor (M) for rotating the drive wheel (6).
摘要:
An elevator comprising a hoistway (H); an elevator car (1) vertically movable in the hoistway (H); a counterweight (2) vertically movable in the hoistway (H); at least one tightening wheel (3) located in the lower end of the hoistway (H); at least one rope wheel (6) located in or at least in proximity of the upper end of the hoistway (H); a first roping (R) interconnecting the car (1) and counterweight (2) and passing around the at least one rope wheel (6) located in or at least in proximity of the upper end of the hoistway (H); a second roping (4) interconnecting the car (1) and counterweight (2) and passing around the at least one tightening wheel (3), the tightening wheel being mounted movably back and forth in a first direction (A) towards the second roping (4), and in a second direction (B) away from the second roping (4); and means (5,5') for exerting force (F 5 , F 5' ) on the tightening wheel (3) to move it in the first direction (A) so as to tighten the second roping (4). The elevator further comprises means for limiting the movement speed of the tightening wheel (3) towards the first direction (A) and the second direction (B).