Concrete pump operated by actuators - has two cylinders mounted side by side on yoke which swing into inlet and outlet positions

摘要

The pump consists of two cylinders inside which pistons are reciprocated and by pneumatic actuators. The two piston cylinder units are mounted side by side on a yoke (4) inside a container. The yoke can be pivoted about a point by means of two actuators. A plate is mounted at the end of the cylinders which has a part cylindrical surface. The centre of the radius of the surface lies on the pivot point. The assembly can be pivoted in two positions. In one position, the open end of the first cylinder is open to the tank with concrete, while the other cylinder is in line with an outlet pipe. In this position, the first cylinder is filled with concrete, while the other one is discharged.