Screw opening and closing machine hydraulic control emergency operation device

Abstract

The invention discloses a screw opening and closing machine hydraulic control emergency operation device. A hydraulic control device is included, is arranged on a movable trolley, and is connected with a hydraulic drive device through a high pressure hose provided with a fast joint; a driving shaft of the hydraulic drive device is provided with a fast shaft connection device, and is connected witha standby input shaft of a screw opening and closing machine; the hydraulic drive device is fixedly connected with a connection frame through a bolt, and the connection frame is in inserting installing connection with a transition connection plate; the transition connection plate is in fixed position connection with a bolt on a cover plate at the end of the standby input shaft of the screw opening and closing machine through a bolt; and the hydraulic control device can control the rotating direction and the rotating speed of a driving shaft of the hydraulic drive device. The hydraulic controldevice is adopted for the device, connection with the standby input shaft of the screw opening and closing machine can be facilitated through the hydraulic drive device and the fast shaft connectiondevice, power is provided for the screw opening and closing machine breaking down, and controlled emergency door opening and closing operation is achieved; and due to the fact that various parts are arranged on the movable trolley, flexible movement can be achieved, and the convenience and fastness, and universality of using are improved.

Description

technical field [0001] The invention relates to emergency operation equipment, in particular to hydraulically controlled emergency operation equipment for a screw hoist. Background technique [0002] At present, in water conservancy projects, hydropower projects and shipping projects, screw hoists are more and more widely used, and working gates are generally controlled by screw hoists. And these work gates all have the requirement on opening and closing time, if can't gate is opened or closed within a certain period of time, will produce the loss of varying degrees, even can produce serious consequence. For example, if the working gate of a hydropower project cannot be closed in time due to hoist power supply or motor failure, a large amount of water resources for power generation will be wasted. If it cannot be opened within a certain period of time, it may affect the flood discharge of the reservoir and may have an impact on the safety of the dam. If the gates of flood c...

AI Technical Summary

Problems solved by technology

And these working gates have requirements on opening and closing time. If the gates cannot be opened or closed within a certain period of time, losses of varying degrees will occur, and even serious consequences will occur.

For example, if the working gate of a hydropower project cannot be closed in time due to the power supply or motor failure of the hoist, a large amount of water resources for power generation will be wasted. If it cannot be opened within a certain period of time, it may affect the flood discharge of the reservoir and may have an impact on the safety of the dam.

However, if the gates of flood control and conservancy projects cannot be closed in time, it will directly affect the flooding in the urban area, and if they cannot be opened within the specified time, it may affect the flood discharge of the city.

If the gates of river dams in reservoir irrigation areas cannot be closed within a certain period of time, it may cause the loss of irrigation water resources. If they cannot be opened within a certain period of time, it will directly affect the timely irrigation of crops

[0003] However, when the power supply of the screw hoist fails, or the motor of the hoist fails, the hoist will not work

At present, the response to power supply failure is to configure a diesel generator, but the power of the diesel generator configuration cannot be less than the motor power of the hoist. Therefore, the volume is relatively large, and a special diesel generator room and a series of Advanced control system, high investment cost, poor economy

At present, there is no good emergency measure when the hoist motor fails. Generally, it is operated by manual operation, and the efficiency is low.

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