| 摘要 |
FIELD: earth facilities; working equipment of hydraulic excavators. ^ SUBSTANCE: proposed equipment of hydraulic excavator contains dipper stick, turnable lever and bell crank, tie-rod, hydraulic control cylinder, ripping tooth and disk cutters. One arm of bell crank hinge-mounted on dipper stick is made in form of ripping tooth of u-shaped, and the other with mounted-on freely turning disk cutters is connected by tie-rod with turnable lever and hydraulic control cylinder. ^ EFFECT: simplified design, improved efficiency in operation. ^ 4 dwg |
