LOOSENING DEVICE FOR FROZEN AND SOLID GROUND Russian patent published in 2006 - IPC E02F5/30 

FIELD: building, particularly for ground loosening and cement-concrete covering cracking during motor road and pavement reconstruction.

SUBSTANCE: loosening device comprises frame with rotation bearings, shaft with drum supported by rotation bearings, shaft drive and dynamic action application mechanism. The drum is provided with teeth. The dynamic action application mechanism applies dynamic action to the drum. The drum is connected to the shaft through free travel mechanism. The dynamic action application mechanism is made as ratchet wheel fixed to drum end and connected with impact application mechanism, which applies impact action to drum, through rod. The impact application mechanism is made as hydraulic hammer.

EFFECT: increased operational efficiency.

2 cl, 2 dwg