SU1230889A1 - Tree skidding machine - Google Patents

Description

The invention relates to machines for logging trees and can be used in the forest industry.

The purpose of the invention is to increase the efficiency of the machine.

FIG. 1 depicts a machine for skidding trees, obsh, i view; in fig. 2 - jaw capture of the machine.

The machine 1 has a self-propelled chassis 2, a turntable 3, an arrow 4, an arch 5, gripping jaws 6, hydraulic cylinders 7 and 8 and supporting devices in the form of ribs 9.

The arch is connected to the longitudinal beams of the boom by transverse axles 10 and is always oriented together with the jaws under the action of its own weight in an upright position. The gripping jaws are hinged to the arch and actuated by hydraulic cylinders 8.

The machine works as follows.

When collecting and skidding packs of trees prepared with a feller buncher, the skidder pulls back to the tree pack in reverse or at the side, the grab is oriented by rotating the platform until the longitudinal axes of the frame and the bag of trees are aligned, the frame is tilted back, the bag of trees is clamped by the grab and lifted. Swivel platform is set to floating

the position and the machine in this position moves to the next packet. When combining the ends of the trees in the package being transported and the package lying on the ground, the machine is stopped and the platform is pivoted together with the frame and the packages are placed side by side. The boom is then raised, the catch opens to the width necessary to collect both bags and captures the latter. Similar manipulations in the gripper accumulate the number of packages necessary for the formation of a full-load pack, after which the frame is placed on the supporting ribs by rotating the frame around the horizontal axis. The turntable is installed in a floating position, which improves the maneuverability of the machine during the load stroke, and the bundle of trees is transported to the loading station.

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Claims (2)

1. A TRAILING TRAILING MACHINE containing a self-propelled chassis, on the frame of which a platform is mounted which is rotated in the horizontal plane and mounted on a portal arm pivotally with a possibility of rotation in the vertical plane; capture is formed by a cross-beam of an arrow made in the form of an arch attached to the upper parts of the beams of the arrow by transverse axes. 2. Machine by π. 1, characterized in that the gripper in the transport position is located in a transverse plane passing in the zone of the center of gravity of the machine.