MULTICHANNEL ROTATING JOINT Russian patent published in 1996 - IPC

FIELD: construction and road building machinery; positive displacement drives. SUBSTANCE: multichannel rotating joint has fixed cylinder 1 with interconnected axial and radial channels for delivery and drain lines and holder with radial channels rotating relative to cylinder and communicating with corresponding radial channels of fixed cylinder. Fixed cylinder 1 has through axial hole 16 for electric wires. Provision is made for connection of fixed portion of current collector on its upper end face. Rotating holder 10 can be made for mounting rotating portion 20 of current collector on its upper end face. Made in joint are axial and radial channel for pneumatic lines separated from delivery lines by return of drain hydraulic main lines. EFFECT: enhanced reliability of operation. 1 cl, 4 dwg