OVERALL TOP BEAM STATICALLY INDETERMINATE HYDRAULIC BRACKET

摘要

An overall top beam statically indeterminate hydraulic bracket mainly comprises a top beam, a base, eight hydraulic columns, an extension beam, a guard plate, a tail beam, a connecting plate, an uplifting frame, a hydraulic control valve group, and a push device. The eight hydraulic columns are symmetrically arranged between the top beam and the base in a reticular cross manner, wherein upper ends of the hydraulic columns are hinged with the top beam, and lower ends of the hydraulic columns are hinged with the base; the extension beam is arranged in the top beam; the guard plate is hinged with the extension beam; an upper end of the tail beam is hinged with the top beam, a lower end of the tail beam is hinged with an upper end of the connecting plate, a lower end of the connecting plate is hinged with the uplifting frame, and the uplifting frame is welded with the base into one piece; the hydraulic control valve group is mounted on a gap bridge by a bracket, and the gap bridge is welded with the base into one piece; and a front end and a rear end of the push device are hinged with the base and a scraper conveyor respectively. The top beam statically indeterminate hydraulic bracket can be used for a fully-mechanized mining working face, and can also be used for a working face with relatively frequent rock burst; achieves modular design and standardization and serialization production; and has a simple structure and process, good stability, use safety and reliability, and wide practicability.