Protecting device for partial-cut cutting machines

Details Protecting device for partial-cut cutting machines Protecting device for partial-cut cutting machines

1983-12-28

1986-05-27

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

299 75, E21C 2720

Patent

active

045912092

ABSTRACT:
For protecting partial-cut cutting machines from overload, a vibration sensor 7 is provided on the swivellable cutting arm 2 carrying rotatably supported cutting heads 6. The signals of the vibration sensor 7 are utilized in an electronic control 8 and used for controlling the pivotal drive of the cutting arm 2. The electronic control 8 has a threshold switch which is connected with an adjusting drive for varying the supply capacity of the hydraulic pump of the pivotal drive.

REFERENCES:
patent: 4470635 (1984-09-01), Paurat et al.

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