Lever-type traction mechanism with adjustable, depending on the resistance of movement of the pressure of the drive wheels is used as a drive for transportation and mining machines ...
Leningrad Mining Institute designed, manufactured and tested in production conditions at the marble quarry Prokhoro-Balandinskoye ore management friction drive longitudinal feed for mining stone-cutting machines type SM-177A. ...
An experimental sample of a friction-driven hoist was created and successfully tested at LGI. The hoist is moved by a special traction device with smooth drive wheels on a vertical rail made of I-beam.
