Hydraulic pneumatic sewerage pipe cleaning appliance - has liquid or air bearings holding rotor floating operatively on fixed unit

摘要

The rotor, driven by recoil jet nozzles, is mounted on a hollow spindle supplying pressure medium, in an appliance for cleaning pipes in sewerage pipe systems, with pressure- medium drive, and recoil inducing automatic forward movement. The rotor (4) is held in its operative position, floating on the stationary component (1), by fluid or air bearings. These can be in the form of an axial bearing (3), adjoined by radial bearings (10,11) on both sides, the former being a self-centering shock absorbing bearing for the rotor. This is reliable and quiet, and requires less power in proportion to output.