SU1687431A1 - Device for lopping felled trees - Google Patents

Abstract

The invention relates to the logging industry and can be used to clean branches from branches. The purpose of the invention is to improve the quality of cleaning the branches from the branches. The device for pruning knots from trunks of fallen trees consists of knife systems 1, including pointed knife front side 3, pointed knife back side 4 and holder 5, racks, pulling devices, and manipulator for loading trees. The depth of the pointed part of the cutting contour of the back side is made less than the depth of the sharp point of the cutting contour of the front side by 1.5–2 times. When the device is working, the quality of pruning is improved regardless of their parameters. 4 il.

Description

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The invention relates to the logging industry and can be used to clean the branches from the branches in stationary and self-propelled delimbing machines and delimbing machines.

The purpose of the invention is to improve the quality of cleaning the branches from the branches.

FIG. 1 shows the device, front view; figure 2 is a device, top view; Fig. 3 shows the moment of cutting the knot by the pointed part of the cutting contour of the front side of the knife system, section A-A in Fig. 1; Fig. 4 shows the same moment of cutting the remainder of the uncut part of the knot with the pointed part of the cutting contour of the back side of the knife system.

The guvo for pruning pruning consists of knife systems 1 and 2, including a pointed knife front side 3, a pointed knife back side 4 and a holder 5, pillars 6 of a pulling device 7, a manipulator for loading trees.

The pulling mechanism is reciprocating, for example, in the form of studded rollers with a drive having a reverse. The depth of the pointed part of the cutting contour of the back side is made less than the depth of the sharp point of the cutting contour of the front side by 1.5–2 times.

The device works as follows.

Before loading the tree into the device, the knife systems 1 are separated by racks 6 along arrow A. After the tree is loaded into the device, the knife systems 1 are pressed against the tree trunk 8, pulling it through the knife systems with rollers 7, while moving forward with the butt along arrow B and the main cutting of the branches with the pointed front side 3 (cutting contour a b c) of the knife systems 1 and 2, as shown in FIG. Subsequently, in the zones on the trunk of incompletely cut off branches, the trunk m is to be dosed up to m.

uncut branches during reciprocating movement of the trunk relative to the knife systems with a pointed back side 4 (cutting contour d e)

when the trunk is moved apex forward along arrow D, Improving the quality of cleaning the branches from the branches is achieved by cutting the branches with a butt and forward cleaning of the pointed

with the back of a knife through the barrel apex forward

The largest branches that cause great rooting are the branch of a birch. They determine the depth of the sharp point of the cutting contour of the front pointed side and the rear pointed side. An analysis of the shape and size of the remnant of a birch knot after medium shows that approximately half of the remnant of the knot remains

Improving the quality of cleaning the trunks of the branches is achieved by the fact that, when the tapered part of the back side cutting contour is made smaller than the depth of the tapered part of the front side, the overall width of the copying sites is reduced by 1.5-2 times.

Claims (1)

Invention Formula A device for pruning knots from trunks of fallen trees, including knife systems with holders with knives with pointed front and back sides, a reversing mechanism for reciprocating the trunk relative to knife systems, in order to improve the quality of cleaning of trunks from boughs, front and rear pointed the sides of the knife are asymmetrically relative to the longitudinal axis of the holder, while the cutting depth of the cutting contour of the back pointed side of the knife is made smaller than the cutting depth of the cutting the contour of the front pointed side of the knife 1.5-2.0 times. her IT Nh l Aa Fi-i.lf