Unattended operation design method of hydropower station winch type single-lifting-point gate hoist

Abstract

The invention discloses an unattended operation design method of a hydropower station winch type single-lifting-point gate hoist. The method includes the steps that 1, a set of electric push rod is arranged at the position of each set of locking trolley on the two sides of a gate along rails; 2, a single coiling block of the winch type single-lifting-point gate hoist is changed into an A duplex coiling block and a B duplex coiling block which are oppositely arranged; 3, as for the movable winch type single-lifting-point gate hoist, a proximity switch is arranged on an operating mechanism, andan induction block is arranged at the center position of each gate orifice; and 4, as for the fixed winch type single-lifting-point gate hoist, cameras are mounted in the regions of a hoist machine room and a gate overhaul platform, meanwhile, a signal receiving and transmitting device is arranged to collect control and monitoring signals of the hoist, and the signals are transmitted to a master control room through a network. As for the movable winch type single-lifting-point gate hoist, cameras are mounted in the regions of the hoist machine room, a lifting tool, the operating mechanism andthe center of a hanging point. Unattended operation of the winch type single-lifting-point gate hoist is achieved.

Description

technical field [0001] The invention relates to a winch-type single-hanging-point gate hoist for a hydropower station, in particular to an unattended design method for a winch-type single-hanging-point gate hoist for a hydropower station. Background technique [0002] In water conservancy and hydropower projects, all kinds of hoisting machinery used for opening and closing gates are collectively referred to as gate hoists. Such as hoist hoist, hydraulic hoist and so on. According to the layout type classification, there are two types: fixed type and walking type. The fixed gate hoist means that one gate hoist only operates one gate, that is, it has only one lifting mechanism and is not equipped with a horizontal movement mechanism. The walking gate hoist refers to a gate hoist operating several gates. In addition to the lifting mechanism, this type of gate hoist needs to have one or two traveling mechanisms. [0003] At present, there have been unattended operation cases ...

AI Technical Summary

Problems solved by technology

2: During the installation process, due to the twisting force of the wire rope, most of the gates 1 are in a deflected state after the gate 1 is lifted out of the opening, that is, the center line of the hoisted gate forms a certain angle with the center line of the gate slot. Sometimes it is as high as 15゜~20゜, which makes it difficult for the gate 1 to enter the groove. This is the second problem that restricts the unattended operation of the winch-type single-lift point gate hoist.

3: For the mobile winch type single lifting point gate hoist, there is a problem of how to accurately locate multiple gates with one machine, which is the third problem restricting the unattended operation of the mobile winch type single lifting point gate hoist

4: For the mobile winch type single lifting point gate hoist, it is always in a moving state during operation. Affected by technical factors, it is difficult for the control signal to be transmitted to the general control room (driver's cab) through buried cables like the fixed hoist. To realize unattended operation, this is the fourth problem that restricts the unattended operation of the mobile winch type single lifting point gate hoist

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