UNIT FOR TRENCH FREE PIPELINE LAYING Russian patent published in 1995 - IPC

FIELD: pipeline laying. SUBSTANCE: unit for trench free pipeline laying has an anchor, frame, locking block with a mechanism to clamp a drilling column, power unit and power hydraulic cylinders to feed. The frame is hinged to the anchor. Locking block is installed on the frame and may move in lengthwise direction. The power unit is installed on the frame and is able to move lengthwise. Ends of power hydraulic cylinders are hinged to the body of locking block and body of power unit. The locking block and power unit have mechanisms to stop proper block with the frame. Mechanism to stop a proper block with the frame is made in the form of stopping power hydraulic cylinders, guiding members, and stopping pins. Each stopping pin is hinged to a rod of stopping power hydraulic cylinder through a link gear. The frame has through channels to place stopping pins. Mechanism to clamp drilling column is made in the form of clamping hydraulic power cylinders and sliding clamps. EFFECT: trench free laying pipelines. 2 cl, 5 dwg