초록

To repair worn-out bearing lugs of iron bolt bearings, excess material is applied to the bearing surface by means of a welding head rotating inside the bearing lug. This material then is turned down to the regular bearing surface.

대표청구항 ▼

Apparatus for inner lining metallic bearing lugs which are held at a standstill during treatment, comprising an elongated rotary electrically conductive carrier; a welding nozzle mounted on and having an axis which is inclined relative to the axis of said carrier; an axially movable electrically con

Apparatus for inner lining metallic bearing lugs which are held at a standstill during treatment, comprising an elongated rotary electrically conductive carrier; a welding nozzle mounted on and having an axis which is inclined relative to the axis of said carrier; an axially movable electrically conductive coupling adjacent to the coaxial with said carrier so that said nozzle orbits about the axis of said carrier when the latter rotates and the nozzle simultaneously moves in the axial direction of said carrier as a result of axial movement of said coupling; conduit means for admission of protective gas to said nozzle, said conduit means being connected to said coupling, said carrier having a duct extending from said coupling to said nozzle and at least one channel for conveying gas from said conduit to said nozzle; a protective hose installed in said duct; a welding wire slidably extending through said hose and into said nozzle; and means for electrically connecting said carrier with said coupling and with the wire in said nozzle.