FIELD: earth-moving equipment; applicable, mainly, in mining industry, in opencast mining of mineral deposits. SUBSTANCE: loading dragline excavator has supporting base, turning platform, boom, pulling winch, hoisting winch, winch for casting bucket, block of hoisting ropes located in the base of boom, bucket connected by respective rope with each unit. Bucket has opening rear wall with locking mechanism made in form of leverage and locking springs and catching device. Catching device is made in form of two-stage drum, additional block, ropes with leafroller chain with long rollers containing the lever switching off the locking mechanism. EFFECT: higher efficiency. 3 cl
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Authors
Dates
1997-05-20—Published
1994-12-07—Filed