| 摘要 |
FIELD: mining; transportation. ^ SUBSTANCE: tunnel miner includes crawler-tracked carriages, drilling effector, berm cutters, cut-out drums, warding four-section shield with boards and buckets attached to the said sections, chute-like conveyor with walls, control panel of hydraulic system, miner's electric equipment control station, and operator's seat. The miner incorporates two dust-screening flaps mounted pivotally, by means of curtains, on the chute-like conveyor walls at an angle to the vertical. The dust-screening flaps at the operator's seat side feature locking device with arms capable of shifting towards only one direction to reach the stops installed in one flap, and thus to free the adjoining flap. ^ EFFECT: reduced dust level of the operator's workplace during miner operation. ^ 3 dwg |
