Face equipment for mining machinery

Abstract

Longwall face equipment for use in extraction in underground mining, comprising electrohydraulically operated support units each having a support controller 6, with at least one power unit being provided that supplies at least two support controllers 6 of differing support units with power, and with a bi-directional coupler being connected between the power unit and the at least two support controllers 6 and providing galvanic isolation between the power unit and the support controllers 6 and/or groups I, II of support controllers 6. The couplers permit communication between the two support controllers 6 and/or groups I, II of support controllers. In order to simplify the arrangement of the face, the coupler 12 is integrated into the power unit 11 or is flanged directly onto the housing of the power unit.

1 . A longwall face apparatus for use in extraction in underground mining, comprising electrohydraulically operated support units each having a support controller ( 6 ), with at least one power unit being provided that supplies at least two support controllers ( 6 ) of differing support units with power, and with a bi-directional coupler being connected between the power unit and the at least two support controllers ( 6 ) and providing galvanic isolation between the power unit and the support controllers ( 6 ) and/or groups (I, II) of support controllers ( 6 ) and permitting communication between the two support controllers ( 6 ) and/or groups (I, II) of support controllers ( 6 ), wherein the coupler ( 12 ) is integrated into the power unit ( 11 ) or is flanged directly onto the housing of the power unit.  
   
   
       2 . The longwall face apparatus according to  claim 1 , wherein the power unit includes a component having a data link with the support controllers in order to transmit to the support controllers information on the power consumption, current peaks, voltages or similar at any given moment.  
   
   
       3 . The longwall face apparatus according to  claim 1 , wherein the power unit is located in a housing ( 8 ) with flameproof, explosionproof or special-protection proof enclosure.  
   
   
       4 . The longwall face apparatus according to  claim 3 , wherein the power unit together with a lamp, which is used to illuminate the face, is located in the housing and/or is implemented in the form of a double power unit.  
   
   
       5 . The longwall face apparatus according to  claim 2 , wherein the power unit is located in a housing ( 8 ) with flameproof, explosionproof or special-protection proof enclosure.