Hydraulic synchronous control device for fan-shaped section replacement device

Abstract

The invention relates to a hydraulic synchronous control device for a fan-shaped section replacement device. The control device comprises a fan-shaped section replacement device execution mechanism, a controller and a double-proportional valve hydraulic synchronous control circuit. Closed-loop control is conducted on the double-proportional valve hydraulic synchronous control circuit through the controller to achieve synchronous movement of the fan-shaped section replacement device execution mechanism. The hydraulic synchronous control circuit mainly comprises a hydraulic control one-way valve, a pressure compensator, a proportional valve, an electromagnetic directional valve, a balance valve, a shuttle valve and a safety valve. The control device has the advantages that the swing angles of guiding swing arms on the left side and right side of the fan-shaped section replacement device are controlled synchronously through a double-proportional valve, so that the guiding swing arms can adapt to hoisting and positioning of different fan-shaped sections, hoisting, replacement and adjustment of different fan-shaped sections of a continuous casting machine can be achieved quickly and steadily, fan-shaped section replacement can be conducted safely, steadily and reliably, the automation level of fan-shaped section replacement is increased, and the control device is suitable for automatic control of fan-shaped section replacement devices of slab casters.

Description

technical field [0001] The invention belongs to the field of metallurgical machinery, and relates to a hydraulic synchronous control device of a segment replacement device. Background technique [0002] The sector section is one of the core equipment of the slab continuous casting machine. The quality of the slab, the improvement of production efficiency, and the speed of maintenance often depend on this part of equipment. The segment is one of the equipments that need to be replaced frequently in the continuous casting machine. Each continuous casting machine needs to be equipped with a dedicated segment replacement device, so that the segment can be replaced safely, quickly and smoothly to shorten the maintenance of the continuous casting machine cycle, improve production efficiency, and improve billet quality. [0003] Most of the existing sector replacement devices adopt a single proportional valve circuit or a speed regulating valve circuit for synchronous control. Th...

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a hydraulic synchronous control device of the segment replacement device, which solves the problem of synchronous control of the guide swing arm of the segment replacement device, and realizes accurate positioning of the segment replacement device in the segment hoisting process stability, safety and stability, hoisting reliability and rapid replacement, which improves the automation level of the segment replacement process

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