Control apparatus for controlling electrohydraulic mining machine

Abstract

A control device (10) for electro-hydraulic support frames with a casing (11) accommodating a circuit, several plug-in connectors (20) accessible from outside the casing (11) for the connection of control leads, and with actuating control elements (13) connected to the circuit. The control elements (14, 15, 16, 17, 18) are grouped together in several exchangeable modules (27), accommodated in the casing (11), which are connected to the circuit and to each other by plug-in connecting elements (30) when installed in the casing (11). The modules (27) are exchangeable independently of each other. The operating keys of a keyboard (16) and / or an indicator unit (18) can be combined in one operating module (28), which can be removed from the casing (11). The actual control of the control device in the casing (11) and operation of the support frame is permitted to continue during the exchange of the operating module (28).

Description

technical field [0001] The invention relates to a control device for the control of an electrohydraulic mining machine, which has a housing containing an electrical and / or electronic control circuit, a plurality of control devices accessible from the outer side of the housing for connecting to the mining machine controlled Plug connectors for component control wires, and control elements connected to the circuit that can be manipulated. Background technique [0002] This control device for electrohydraulic mining machine control is allocated to each mining platform of an underground coal mine. On the plug connectors of the individual control devices are connected the connection lines for power supply, data transmission to the control equipment and / or central computer of the adjacent mining platform, the connection lines for the transmission of electrical signals of the sensors and the circuits for the solenoid valves control cable. [0003] DE-OE 19751007 discloses a contr...

AI Technical Summary

Problems solved by technology

The problem, however, is that the rest of the control device, i.e. the actuatable control elements, no longer work or continue to work unreliably because their often and occasionally hard controls have become worn or damaged, while the most important part of the control device, also The most expensive part, the electrical and electronic circuit part is still functioning properly, in the existing control equipment the above situation requires the entire control equipment to be replaced

The replacement of the entire control equipment is not only expensive, but also takes a relatively long time to disassemble and update, and the corresponding mining platform cannot continue to work during maintenance, so the entire coal mine must often be shut down in order to replace a control equipment

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