EXCAVATOR BUCKET Russian patent published in 2006 - IPC E02F3/40 

FIELD: materials handling equipment.

SUBSTANCE: invention relates to machines and equipment with bucket-type working member designed for handling wet cohesive soils. Proposed bucket contains body with rear, front and side walls, turnable bottom and cleaning unit connected with bottom by means of articulated tie-rods made in form of closed frame with two-side cutting edges following inner profile of bucket and installed by means of longitudinal guides secured on body. Moreover, cutting edge of frame pointed to bottom has angle exceeding that of wedge angle of other cutting edge of frame, and longitudinal guides are made in form of dovetail. Closed frame of cleaning unit consists of variable length parts telescopically intercoupled, each articulated tie-rod being made in form of plunger hydraulic cylinder with limited displacement of plunger in piston space of which partition is installed dividing the space into upper space provided with radial holes over perimeter in hydraulic cylinder housing and lower space connected with hydraulic accumulator through counterflow check valve, and with upper space, through straight flow check valve.

EFFECT: improved efficiency of operation of machines and equipment with bucket-type working member designed for handling wet cohesive soils.

8 dwg