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US 2018/0327227 A1Published application
Rope climbing elevator system
AssigneeOtis Elevator Company
InventorsRichard Hollowell, Jianwei Zhang, Xing Mao
Life of this patent
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Abstract
The present invention provides a rope climbing elevator system, and pertains to the technical field of elevator. The elevator system of the present invention can achieve a ratio of a linear rotation speed of a drive motor to a movement speed of an elevator car, larger than or equal to about 2:1, can lower the torque requirement for the drive motor, decrease the weight of the drive motor, and reduce the cost of the drive motor.
Claims48
A rope climbing elevator system (10,20,30,40,50,60,30,40,50,60,70,80,90), comprising:
- an elevator car (110), which can move along an up-down direction;
- one or more host upper diverter pulleys (120), which are fixedly arranged above the elevator car (110);
- one or more tensioners (160), which are located below the elevator car (110);
- one or more host lower diverter pulleys (150), which are fixed to the tensioners (160);
- one or more ropes (130);
- and
- a counter-rotating paired drive pulley (141), which is fixed to the elevator car (110) and comprises a first drive pulley (141a/141b) and a second drive pulley (141b/141a) that are adapted to engage with the ropes (130);
- wherein a ratio of a linear speed of the first drive pulley (141a/141b) and the second drive pulley (141b/141a) to a movement speed of the elevator car (110) is about X:1 in the climbing process, X is larger than or equal to 2.
5 more elements
A rope climbing elevator system (10,20,30,40,50,60,30,40,50,60,70,80,90), comprising:
- a plurality of elevator cars (110), which are arranged in a single shaft and can move along an up-down direction;
- and
- one or more tensioners (160), which are located below said plurality of elevator cars (110);
- wherein each of said plurality of elevator cars (110) is provided with:
- one or more ropes (130) for hoisting each of said plurality of elevator cars (110);
- one or more host upper diverter pulleys (120), which are fixedly arranged above each of said plurality of elevator cars (110);
- one or more host lower diverter pulleys (150), which are fixed to the tensioners (160);
- and
- a counter-rotating paired drive pulley (141), which is fixed to each of said plurality of elevator cars (110) and comprises a first drive pulley (141a/141b) and a second drive pulley (141b/141a) that are adapted to engage with the ropes (130);
- wherein a ratio of a linear speed of the first drive pulley (141a/141b) and the second drive pulley (141b/141a) to a movement speed of the corresponding elevator car (110) is about X:1 in the climbing process, X is larger than or equal to 2;
- and the ropes (130) for each of said plurality of elevator cars (110) does not interfere with other ropes (130) for other elevator cars (110).
8 more elements
Dependencies are inferred from the claim text.