SU939198A1 - Knife head for working trees - Google Patents

Description

(54) KNIFE HEAD FOR TREATMENT OF TREES

FIELD OF THE INVENTION The invention relates to the forest industry and can be used in agricultural engineering.

Known knife head for processing trees, which contains the body and the cutting elements located in it in the form of double-arm levers with a drive for their rotation. In this case, all the branches are cut, regardless of the diameter flush of the tree trunk 1.

A disadvantage of the known device is the lack of devices for mechanical or automatic selection of branches of a certain diameter (for example, a coniferous foot), which are used in the production of coniferous flour and wood greens.

The purpose of the invention is to mechanize the selection and trimming of a coniferous foot and green branches of a certain diameter.

This goal is achieved by the fact that the cutting elements have an individual rotational drive and are made in the form of combs, each of which contains a separator having a rotatable spring-loaded knife and an anvil.

FIG. 1 schematically depicts the proposed knife head; in fig. 2 is a view A of FIG. one; in fig. 3 shows a section BB in FIG. 2

5 Knife heads include a detachable body 1, cutting elements in the form of combs 2, guides 3, a device 4 for pressing the cutting elements to the tree crown, dividers 5 with rounded pa, Q blunt edges, anti-knives 6 installed in grooves against each movable cutting knife 7, drivers 8, for cocking the spring 9, which brings the cutting knives to the working position, springs 10 for returning the knives to their initial position.

Knife head works as follows.

The tree is laid in the knife naked at the beginning of the knotted zone or the knife head is placed in front of the delimbing machine. When pulling a tree trunk through the knife head, the cutting element 2 with the dividers 5 is pressed with a certain force to the crown. In this case, branches whose diameter is less than the distance between the dividers fall into the grooves between the dividers. Branches of larger diameter are either bent down to the trunk, or the cutting element is retracted. The thin branches that appear between the dividers, while moving along the contradiction of the knives 6, act on the leash 8, cocking the spring 9. At a certain position of the leash, the knife 7 is released and under the influence of the spring 9 rotates, cutting the branch. The knife d is returned to the initial position by means of the spring 10. In view of the fact that the pressing of each cutting element is carried out individually, trees with an unevenly developed crown can be machined in the knife head, and the breaking of the cutting elements under the influence of large meter The mechanization of the work of separating the needles and green branches for the purpose of their processing improves the profitability of using the raw materials of the branches, and their separation into different streams creates the condition for the full utilization of tree biomass. On the other hand, the bitch, freed from a significant part of the needles 25

figure 1

Claims (1)

SPRING and greens become more homogeneous in relation to the ratio of bark and wood, the relative content of wood in them increases. This makes it possible to more successfully address the issues of their further processing or debarking for use in the production of pulp. Claims for treating trees, including the body and cutting elements in it in the form of double-arm levers with their rotational drive, characterized in that, in order to mechanize the selection and trimming of a coniferous foot and green branches of a certain diameter, the cutting elements have an individual drive turning and made in the form of combs. each of which contains a separator having a rotatable spring-loaded knife and an anvil. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 564153, cl. In 27 L 1/00, 1975 (prototype). YU (rig 2 Dzig.Z S