elevator equipment
A technology for equipment and elevators, applied in elevators, transportation and packaging, etc., can solve the problems of rising equipment costs, increasing the number of parts, and occupying a large number of parts, and achieve the effects of reducing equipment costs, reducing quantity, and saving space
Active Publication Date: 2016-08-17
HITACHI LTD
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Problems solved by technology
[0011] However, in the prior art including the above-mentioned patent documents, it is necessary to install speed governors on the sheaves arranged at the top and bottom of the lifting passage, which not only takes up a lot of space, but also increases the number of parts to increase the cost of equipment. The problem
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[0022] Hereinafter, embodiments of the elevator equipment according to the present invention will be described with reference to the drawings.
[0023] Such as figure 1 As shown, the elevator equipment has: an elevator passage 1 formed in a building; a mechanical room 2 arranged directly above the elevator passage 1; ; the main sling 5 connected to the elevator car 3 and the counterweight 4; the hoist 6 arranged in the machine room 2 and used to drive the main sling 5; 3. Guide rail 7 for the lifting car; vertically arranged in the lifting passage 1 for guiding the counterweight 4 lifting guide rail 8; governor 9, which is used to monitor the lifting speed of the elevator car 3, in the elevator When the car 3 falls into a predetermined overspeed state, the elevator car 3 is brought to an emergency stop; and the emergency brake device 10 is provided on the elevator car 3 to mechanically stop the elevator car 3 in an emergency.
[0024] Such as figure 1 As shown, the speed go...
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An elevator device, capable of saving space and simplifying the structure of a governor, is provided in an elevator having a rated car service speed that differs when ascending and descending. A sheave (9b), supported by a horizontal axle (9e) and around which the upper end of a governor rope (9a) is wound and from which the same hangs, and two types of governor units (9A, 9B) are disposed, and a displacement prevention member (9C3) is made to be slideable. Displacement of the governor weights (9B1, 9B2) of the descending side governor unit (9B) caused by centrifugal force is prevented or released by way of the displacement prevention member (9C3) mediated by a displacement prevention means (9C) according to the direction of motion of the elevator car. When displacement is prevented, the descending side governor unit (9B) is inactive and the prescribed overspeed while ascending is detected by the ascending side governor unit (9A); when displacement prevention is released, the descending side governor unit (9B) is made active and detects the prescribed overspeed while descending.
Description
technical field [0001] The invention relates to an elevator installation with an elevator governor, the elevator car of which has different nominal speeds during ascent and descent. Background technique [0002] Elevator equipment is usually equipped with a speed governor, which continuously monitors the lifting speed of the elevator car, and when the elevator car falls into a predetermined overspeed state, the speed governor makes the elevator car come to an emergency stop. [0003] When the ascending and descending speed of the elevator car exceeds the rated speed and reaches the first overspeed, the governor cuts off the power supply of the hoist driving the elevator car and the power supply of the control device for controlling the hoist respectively, thereby safely stopping the elevator car. [0004] In addition, when the descending speed of the elevator car exceeds the first overspeed for some reason and reaches the second overspeed, the governor activates the emergenc...
Claims
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IPC IPC(8): B66B5/04
CPCB66B5/044
Inventor 蔀贤二坂井满羽田诚秀
Owner HITACHI LTD