| 摘要 |
1. The device for tightening the drawing chain in mining push-plate conveyors contains a gear driven with a hydraulic engine, fed with the operating medium by a reducing-filtering station, and a multi-way separator. Unique characteristics: The gear (1) is equipped with a sliding wheel (6), mounted - by means of self-lubricating bushes (9) - on the fixed axle (8) and equipped with the guiding groove (6a), which accommodates the blade (10) of the eccentric cam (11) of the controlling lever (12). The wheel is in contact with the limit switch (15) of the conveyor drive, secured inside the housing (1a), and with the driving wheel (2). The open housing (1a) of the gear (1) is symmetrical with respect to the symmetry plane (P), parallel to the disk wheel (7), and it is equipped with openings at both sides.
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