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Abstract

The method for mounting a ranging arm on a body of a longwall shearer loader characterized by the fact that the shearer's ranging arm (7) is pivotally connected through the eyes (9) and at least one pin (3) with the eyes of the articulated joint (6) located from the side wall side in the bottom part of the shearer's body (5) outside of the chain conveyor (11). The axis of the pin or pins (3) is situated below the axis of the motor (12) of the shearer's ranging arm (7). The hydraulic cylinder (4) is pivotally connected with the eyes (8) of the shearer's ranging arm (7) located between the eyes of the articulated joint (6) with a pin (2), the axis of which is situated above the axis of the motor (12) of the shearer's arm (7). The hydraulic cylinder (4) is pivotally connected with the shearer's body (5) with a pin (1), the axis of which is situated below the axis of the motor (12) of the shearer's arm (7) and below the axis of the feed drive shaft (10). The axis of the pin (1) is situated at the same height as the axis of the pin or pins (3) connecting the shearer's arm (7) with the eyes of the articulated join (6). The hydraulic cylinder (4) is located between the axis of the feed drive shaft (10) and the pin of pins (3) connecting the shearer's ranging arm (7) with the eyes of the articulated joint (6).

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First Claim