Registers – Transfer mechanism – Traveling pawl
Patent
1974-09-23
1976-01-20
Ruggiero, Joseph F.
Registers
Transfer mechanism
Traveling pawl
37DIG1, 235151, E02F 346, G06G 748
Patent
active
039341267
ABSTRACT:
A control device for a dragline excavator, comprising hoist and drag rope length increment transducers and revolving platform swing angle transducers responding to the movement of a bucket from its breakout point on the face to the dumping point and from the dumping point to the point where the bucket is lowered onto the face, speed transducers for the bucket hoisting and dragging and revolving platform swinging mechanism, as well as a bucket transportation time calculator and speed setters for the bucket hoisting and dragging and platform swinging mechanisms, associated with said transducers. The device of the invention determines bucket travel times by measuring the hoist and drag rope length increments and the swing angle of the platform, in the presence of limitations on the speeds and accelerations, and then calculates and plots velocity diagrams for the bucket hoisting and dragging and platform swinging mechanisms.
REFERENCES:
patent: 3460278 (1969-08-01), Pesavento et al.
patent: 3636325 (1972-01-01), Chytil
patent: 3638211 (1972-01-01), Sanchez
Lomakin Mikhail Sergeevich
Mamkin Viktor Modestovich
Merkulov Vadim Nikolaevich
Peters Gugo Borisovich
Pevzner Leonid Davidovich
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