ROTARY PILE-DRIVING HAMMER Russian patent published in 2005 - IPC

FIELD: mechanical engineering; mechanization of pile driving.

SUBSTANCE: invention relates to device for driving piles by impact load. Proposed rotary pipe-driving hammer contains frame, guide tube for impact mass with stops at ends movably installed in frame in its horizontal axis and connected with rotary drive, main anvil block, additional anvil block spring-loaded relative to frame and arranged between main anvil block and guide tube, and mechanism to fix impact mass in guide tube made in form of chute whose longitudinal axis is circular curve with center alignment with center of guide rotation. Lower end of chute is rigidly secured on lower belt of frame, and upper end, on upper belt. Walls of chute are provided with lugs to fix impact mass in guide tube at its rotation.

EFFECT: reliable fixing of impact mass with holding of mass at rotation of guide tube, improved reliability of hammer.

3 dwg