| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention refers to devices for wedge-shaped items plasma spraying and can be implemented for applying wear resistant coating on teeth of excavator bucket. An arresting device consists of two parts with upper and lower limiting straps and of limit switches of lengthwise reciprocal motions of the plasmatron. The mechanism of transversal reciprocal and vertical motions of the plasmatron consists of a holder, of a cylinder with a piston attached thereto, in the cavity of which a lock is secured, kinematically connected with a slider, and of a limiting finger of lengthwise motions of the plasmatron screwed into side walls of the piston; the said finger is designed to stop against working surfaces of upper and lower limiting straps. The plasmatron and a scale bar are stationary fixed in the lower part of the cylinder. The manipulator swinging mechanism is connected to the slider of the mechanism of lengthwise reciprocal motion of the plasmatron by means of a mechanical link consisting of a screw adjusting horizontal position of the sprayed surface and of a pusher with a spring inserted into the cavity of the screw. ^ EFFECT: applying qualitative coating due to operation consistency of mechanism of plasmatron lengthwise reciprocal motion and swinging mechanism of manipulator at spraying coating onto cutting edge of wedge-shaped item. ^ 4 dwg |
