Shaft sump overhead rail type rope driven reciprocating lifting unidirectional silt scraping device

The invention discloses a shaft sump overhead rail type rope driven reciprocating lifting unidirectional silt scraping device. The device is composed of a winch, a steel wire rope tensioning vehicle,a reciprocating type silt scraping mechanism, suspension light rails, a monorail trolley, a rope return device and air cylinder brakes at the two ends; the light rails are installed on the roof of a sump in a suspension mode; the monorail trolley is connected with the reciprocating type silt scraping mechanism; a silt scraping rake on the silt scraping mechanism unidirectionally removes silt at the bottom of the sump, and the silt is scraped to one end of an inlet of the sump and then discharged through a slurry pump and other equipment; and the air cylinder brakes are installed at the two ends of the rails, and two-end braking of the monorail trolley is achieved. The driving device is arranged outside the sump, up-down motion of the silt scraping rake is achieved through power of the steel wire rope, the interior