Hydraulic control unit, in particular for adjacent control in self-advancing support underground

摘要

A hydraulic control unit for adjacent control in self-advancing support underground with two valves controllable by means of a common, manually actuated pivoting lever (13) via an intermediate device (14, 15, 20) is to be in a multiple arrangement one above the other with its two valves lying one above the other. As viewed by the operator, the pivoting levers project to the right-hand or left-hand side. Connections (4-6) for hydraulic lines are arranged on the rear side. In this control unit, the pivoting lever (13) is to be swung to the front and the rear. The intermediate device (14, 15, 20) consists of eccentrics (14; 15), which are arranged on the pivot axis (11) of the pivoting lever (13) and of which one is effective in the front section and the other in the rear section of the pivoting area (13), as well as of a two-armed leaf spring, the arms of which are arranged as force-transmitting levers between the eccentrics (14; 15) and valve plungers (3). The control unit can be operated in the multiple arrangement in an ergonomically favourable manner. Several pivoting levers can also be operated at the same time. IMAGE