RU2309577C2 - Method for collecting of shortwood - Google Patents

Abstract

FIELD: logging industry, in particular, processes for executing of cutting area work.

SUBSTANCE: method involves hauling incompletely bucked tree lengths by means of knuckle boom of forwarder, with axial alignment of buckle boom and axis of incompletely bucked tree length during hauling process being provided by displacing buckle boom base lengthwise of loading platform of forwarder.

EFFECT: simplified accessibility of harvested wood under canopy layer during executing of partial cuttings, and improved retention of young growth.

6 dwg

Description

The invention relates to the logging industry, in particular to a technology for performing logging operations.

Currently, there is a method of collecting a bundle of assortments by a forwarder, providing for the preliminary hilling of assortments, noted in [1, p. 95]. “The cultivation of assortments is aimed at creating loading packages to accelerate the recruitment of carts by the forwarder. Long-length assortments are rolled up two-three in a bundle, if necessary moving them along the axis with the help of crowbars and metal hooks, the cullet is manually brought into the area of operation of the forwarder manipulator ”.

The disadvantage of this method is the significant physical effort required when hilling assortments into a bundle.

The closest in technical essence is the method of collecting a bundle of assortments, noted in [1, pp. 95-96]. “Sometimes, in order to facilitate physical efforts when hilling assortments, they use the method of dragging a forwarder with a not fully cut whip by the manipulator. At the same time, the manipulator grabs the nearest end of the whip, located in the reach of the manipulator, and drag it to the technological corridor, where it is “broken” into assortments. ”

The disadvantage of this method is that when using this method, there is a rotation of the whip in the horizontal plane (Fig. 1), part of the undergrowth located near it is damaged, and not a fully whipped whip when it is located between two adjacent trees as a result of rotation can be broken in the place he drank so that the rest of the whip would be outside the coverage area of the forwarder manipulator. In addition, with thinning, gradual and selective cutting, inevitable obstacles in the form of trees that cannot be cut, reducing the availability of harvested timber from one working position, are inevitable. Frequent moving of the machine between adjacent working positions is necessary, as a result of which the productivity of the forwarder is reduced.

The technical problem solved by the applicant is to increase the availability of harvested timber under the forest canopy during non-continuous logging and increase the safety of the undergrowth, taking into account the use of the method of dragging the forwarder with a not fully cut whip, as well as increasing the efficiency of the forwarder when collecting bundles of assortments.

The noted drawbacks are eliminated by the fact that in the method of collecting a bundle of assortments, including the use of the method of pulling a forwarder with a fully-whipped whip by the manipulator, while pulling the incompletely whipped whip, the alignment between the manipulator boom and the axis of the incompletely whipped whip is provided by longitudinal movement of the manipulator base along the forwarder loading platform.

Figure 1 presents the installation method of the forwarder manipulator, proposed for the implementation of the present invention; figure 2 presents a diagram of dragging a not fully cut whip when using the proposed method for collecting bundles of assortments; figure 3 shows the implementation of the proposed method for collecting a bundle of assortments in the presence of obstacles in the form of trees not to be felled; figure 4 shows the coverage area of the forwarder manipulator when using the method proposed in the prototype of the invention, and when using the new method; figure 5 shows a diagram of the implementation of the proposed method when felling trees perpendicular to the apiary; figure 6 shows the achievement of coaxiality between the boom of the manipulator and the axis of the incompletely cut whip, as a result of moving the base of the manipulator along the cargo platform.

The method involves the installation of a special frame (base) for securing the hydraulic manipulator (figure 1). The installation of a special frame provides for the presence of running wheels located on it, driven by hydraulic motors mounted on the frame, which make it possible to move the frame and the manipulator along the transport path laid along the forwarder loading platform in the form of two guides for the movement of the running wheels. The method involves laying a transport path in the form of two channels 1 along the cargo platform of the machine. The manipulator 2 is mounted on the frame 3, located between the channels with the ability to move along the cargo platform. The frame is moved using two hydromotors 4 located at its edges, driving the running wheels 5, moving the frame along the laid transport path.

The proposed method can be most effectively applied using the drag-and-drop method of a whip that is not fully trimmed and gives the following advantages.

Firstly, the turn of the whip in the horizontal plane, damage to the undergrowth located near it (figure 2) and the fracture of the incompletely cut whip at a distance outside the forwarder manipulator zone, which is possible as a result of the turn of the whip located between two adjacent trees, are completely excluded .

Secondly, with thinning, selective, gradual cutting, the availability of timber (assortments, whips) increases (Fig. 3).

Thirdly, the area processed by the manipulator from one working position is increasing, while the number of working positions of the machine during the cutting area is significantly reduced and, therefore, the time spent moving away from the machine and stopping the machine, moving the equipment from the transport position to the working one and vice versa ( figure 4).

As a result, there are wider opportunities for using wide-risk technology, due to the exclusion of barriers in the form of growing trees, the exclusion of a whip in the horizontal plane. It becomes possible to achieve the maximum width of apiaries, i.e. whips can be perpendicular to the draw (figure 5). With the traditional placement of the manipulator with such a felling of trees, a significant number of working positions are necessary, or a turn of the whips in the horizontal plane and damage to the undergrowth and young growth are inevitable. Thus, the width of apiaries can reach 50-60 m and are determined by the formula

Δ = 2 (H + R-m),

where H is the height of the stand; R is the maximum reach of the manipulator, m; m - the length of the part of the timber, which should be in the area of the manipulator, to reliably capture the range (1-2 m).

Literature

1. Azarenok V.A. etc. Assortment logging, Textbook, Yekaterinburg, 2000, p.95, 96.

Claims (1)

A method of collecting a bundle of assortments, including the use of the method of dragging a forwarder with a not fully whipped whip by the manipulator, characterized in that when dragging the incompletely whipped whip, alignment is made between the manipulator boom and the axis of the incompletely whipped whip by longitudinally moving the manipulator base along the forwarder loading platform.

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