An overwind protection method and device for a hoisting system of a deep well. The method comprises: installing, at two upper and lower extreme positions of an operation region of a hoisting container (7), overwind protection devices (3). Each of the overwind protection devices (3) comprises a electromagnetic buffer device and a mechanical buffer device. The electromagnetic buffer device comprises an exciting coil (5), an external power supply, and a detection and control module. The detection and control module comprises a speed detection component (21), a position detection component (22), and a controller. The speed detection component (21) and the position detection component (22) are separately connected to the controller. The controller is connected to the external power supply. The external power supply is connected to the exciting coil (5). The position detection component (22) is located at a middle portion of the exciting coil (5). The speed detection component (21) is located at an end of the exciting coil (5) near the hoisting container (7). The mechanical buffer device comprises a hydraulic loop connected to the controller, and a double-acting hydraulic cylinder (18) connected to the hydraulic loop. The double-acting hydraulic cylinder (18) is located at an end of the exciting coil (5) away from the hoisting container (7).
OVERWINDING PREVENTION METHOD AND APPARATUS FOR DEEP SHAFT HOISTING SYSTEM
2019-03-28
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |
OVERWINDING PREVENTION METHOD AND APPARATUS FOR DEEP SHAFT HOISTING SYSTEM
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