| 摘要 |
The invention relates to a hydraulically-operated shovel, provided with front loading attachment, comprising a self-controlled linkage driving and controlling the bucket, so that during digging the bucket be maintained in an angular position, blocked for reliable working. The angular position of the bucket (5) is controlled by an actuating lever (8) mounted onto the balance arm (4), joined at the other end with the lever which connects the bucket (5) and one point of the actuating lever (8) is joined to the rods of the bucket driving cylinders (10) which are mounted jointly with the other end onto the attachment rocking arm (3) of the equipment, the change of the angular position of the actuating lever ( 8) being produced by changing position of the balance arm (4) in relation to the rocking arm (3).
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