PARALLEL LINKAGE-TYPE WORKING APPARATUS FOR CONSTRUCTION EQUIPMENT

摘要

The present disclosure relates to a parallel linkage-type working apparatus for construction equipment in which a parallel lever and a parallel link operate to prevent a working tool from bending inward so that, even if the working tool is raised, a tilting phenomenon in which the working tool is inclined inward may be prevented, and an amount of change in posture of the working tool at each height may be reduced. Also, the parallel linkage-type working apparatus is capable of increasing excavation ability or power with a posture on the ground surface by supplying a larger amount of hydraulic fluid at one time when working hydraulic pressure is supplied to each cylinder head, in comparison with a case in which working hydraulic pressure is supplied to a cylinder rod.

主权项

1. A parallel linkage-type working apparatus for use with construction equipment, comprising:
a base frame which is capable of being connected to a front side of a traveling apparatus; a lift arm which has one end rotatably capable of being connected to the base frame, and the other end rotatably capable of being connected to a bucket; a lift cylinder which has one end rotatably capable of being connected to the base frame, and the other end rotatably capable of being connected to a central side in a length direction of the lift arm; a parallel link which has one end rotatably capable of being connected to the base frame; a parallel lever which has a lower portion rotatably capable of being connected to the other end of the parallel link; a bucket cylinder which has one end rotatably capable of being connected to an upper portion of the parallel lever; a tilt lever which has an upper portion rotatably capable of being connected to the other end of the bucket cylinder, and a lower portion rotatably capable of being connected to the bucket through a push link; and a connecting shaft portions which have one end portions rotatably capable of being connected to a central side of the parallel lever, and the other end portions rotatably capable of being connected to a central side of the tilt lever.