SU863338A1 - Machine for lopping felled trees - Google Patents

Description

(54) MACHINE FOR CUTTING SUCHIEV WITH FARED TREES

one

The invention relates to the equipment of the wood and woodworking industry, in particular to machines for cutting branches from fallen trees.

Known machines for pruning knots from fallen trees include a self-propelled chassis on which technological equipment is installed containing a rack with a guide support mounted on it, in which a boom is installed in the form of a retractable beam with a gripping-cutting device and a clamping mechanism having toothed support toothed roller {.

However, in machines of this type it is difficult to take down fallen trees of large diameter, especially located near the machine, since the gripping-delimbing device is at a certain angle to the lying trees and its gripping knives cannot reach the trunk of the tree near the butts without increasing the length of the gripping knives .

The closest to the technical essence of the invention is a trimming machine

branches from felled trees, including a self-propelled chassis on which an arrow is mounted with a gripping delimbing device mounted on the end of the boom using a horizontal axis located perpendicular to the longitudinal axis of the boom (21.

This machine structure is complex and also does not provide reliable capture of fallen large trees that are close to the machine.

ten

The purpose of the invention is to ensure reliable capture of fallen large trees, located close to the machine.

This goal is achieved by the fact that the arrow and the gripper delimbing device are provided with stops to limit the turning of the gripper delimbing device relative to the boom, and a damper is installed between the boom and the gripper delimiter.

ao

FIG. 1 schematically shows a machine. on for cutting branches from felled trees at the time of capture of the tree; in fig. 2 shows the layout of the junction assembly of the boom and the cutting trimmer; in fig. 3 - the same, another option; in fig. 4 machine in operation.

The tensile machine contains a self-propelled chassis 1, on which the pivot column 2 is mounted with the guide 3 pivotally fixed on it. In the guide 3 the retractable boom 4 moves, at the end of which the gripper-locking device 5 is fixed. has a fixed knife 7 and a movable sheath 8 and 9. By means of an axis 10, a grab-cutting device is attached to the boom 4. Due to stops 11-15, the grab-delimbing device 5 has a limited rotation relative to the boom 4 Pru; kina 16 rests on the one hand in the boom 4, and on the other in the locking-delimbing device 5.

The operation of the described pruning machine is as follows.

The car pulls up to the fallen trees. The gripping-delimbing device 5 with divorced-gripping knives 8 and 9 is tilted and lowered by the turning of the boom 4 down. In this case, the fixed knife 7 touches the tree, and under the force of the boom, the gripper-delimbing device rotates on the axis 10. When gripping-c) (the device has turned at an angle at which the working surface of the knife 7 rests on the tree trunk, the arrow stops The grippers 8 and 9 are brought together around the trunk. When the tree is lifted, loaded into the machine and pulled by the rollers 6, the gripper-delimbing device 5 returns to its original position, limited by stops. The presence of spring 16 prevents the swinging gripper-knot 633384.

carving device when you hover it on a tree, which would certainly hurt the operator.

When seizing trees of small diameters, the spring 16 holds the gripping-delimbing device-: roystvo. High position in 1st position, excluding unnecessary manipulation. The presence of the spring eliminates the need for a locking device between the boom and the gripping-ejector cutter when moving the machine, when numerous tremors are inevitable. ten

Claims (2)

1. Author's certificate CCCPN 503719, cl. in 27 G 1/00, 1974. 2. USSR author's certificate number 282800, cl. A 01 G 23/08, 1965.  I. 14 sixteen erig.2