Patent ID: 8544960
Filing Date: 2013-10-01
Classification: E21C

Abstract:
1. A chain guide for a driving chain of a mining machine, in particular for a plow chain on a winning plow, having at least one of a driving and a return station arrangable on an end region of the mining machine, the at least one driving and return station having a sprocket for the driving chain, the driving chain having a load strand and a return strand, the chain guide comprising at least one chain guide element which is arranged in spatial proximity to the sprocket at the at least one station, the chain guide element having at least one pressure roller which has a concave track adapted to a curve defined by the chain links, the at least one pressure roller being rotatably mounted on a roller axle and is exchangable together with the roller axle; wherein the at least one pressure roller is arranged on an attachment which is insertable proximate at least one of the driving and return station, the attachment comprising a housing having side walls defining upwardly open recesses that accommodate the roller axle.