TUBE CUTTING HYDRAULIC APPARATUS Russian patent published in 2006 - IPC B23D21/00 B23D21/04 

FIELD: maintenance procedures, erection processes of main oil and gas conduits and different-designation pipelines.

SUBSTANCE: hydraulic apparatus for cutting tube includes drive unit with hydraulic motor; car with supporting wheels; flexible member with tension mechanism embracing cut tube and apparatus; drive shaft supporting reduction gear of mechanism for automatic feed of apparatus. Car is in the form of framework having two lateral brackets with cantilevers and two axles joining two lateral brackets. Reduction gear of mechanism for automatic feed of apparatus mounted in drive shaft extends outside car size and it is arranged on cantilever of one lateral bracket of car with possibility of rotation around axis of drive shaft and with possibility of changing position of cutting tool relative to tube to be cut.

EFFECT: lowered size and mass of apparatus, increased accuracy of cutting tube.

4 cl, 2 dwg