Hydraulic analog display for thrust-piston mechanisms

摘要

The invention relates to a device for monitoring the stroke of hydraulic thrust-piston mechanisms, in particular for arrangements for adjusting the cutting horizon of underground mining machines. The control cylinder (1) is equipped with a metering tube (17), the metering space (22) of which is connected via a duct (18) and a hydraulic line (2) to a display unit (3). The position of the piston (23) of the display unit (3) indicates the state of extension of the control cylinder (1) (Figure 1). <IMAGE>