WORKING ATTACHMENT OF HYDRAULIC EXCAVATOR Russian patent published in 1999 - IPC

FIELD: excavating machinery and equipment. SUBSTANCE: pivotally mounted on arm of hydraulic excavator working attachment is additional working member. Installed on T-shaped frame of additional working member are two disk blades with toothed cutting edges. Blades are spaced from each other at distance which exceeds width of excavator bucket. Bucket turning mechanism is connected with additional working member by means of two pivoted links. Application of aforesaid embodiment of working attachment reduces power needed for destruction of asphaltic concrete pavements. Design of power drive for working members is simplified. EFFECT: higher efficiency. 3 dwg