HYDRAULIC SYSTEM FOR CONTROLLING A JAW CRUSHER

摘要

A hydraulic system for controlling the position of a movable jaw of a jaw crusher includes a hydraulic cylinder having a piston with a piston rod for positioning the movable jaw. The hydraulic cylinder has a bore side space for containing a hydraulic fluid taking up crushing forces exerted by the movable jaw on the piston rod, and an annular side space containing a hydraulic fluid pressing the piston against hydraulic fluid of the bore side space. The hydraulic system further includes an annular side space accumulator having a fluid compartment, which is in fluid contact with the annular side space, and a gas compartment containing a pressurized gas applying a pressure on the hydraulic fluid in the annular side space.

主权项

1. A jaw crusher hydraulic system for controlling the position of a movable jaw of a jaw crusher, the hydraulic system comprising:
at least one hydraulic cylinder having a piston including a piston rod arranged on a first side of the piston for positioning the movable jaw, the hydraulic cylinder including a bore side space arranged on a second side of the piston, which is opposite to the first side of the piston, for containing a hydraulic fluid taking up crushing forces exerted by the movable jaw on the piston rod during a crushing cycle of the jaw crusher, and an annular side space arranged on the first side of the piston for containing a hydraulic fluid pressing the piston against hydraulic fluid of the bore side space; an annular side space accumulator having a fluid compartment, which is in fluid contact with the annular side space; and a gas compartment arranged for containing a pressurized gas to apply a pressure on the hydraulic fluid in the annular side space.