SU1722828A1 - Barking plant - Google Patents

Abstract

The invention relates to the forest industry, in particular to debarking drums for group debarking of timber. The purpose of the invention is to increase the productivity and efficiency of the debarking process. The peeling plant contains two cylindrical sections 1 and 2 and debarking elements in the form of segments 8. New in the invention is the installation of sections 1 and 2 parallel to one another with the possibility of synchronous rotation towards each other, with windows 9 made in one of the sections The other body has segments 8, which, when rotating, turn into these windows. 4 il.

Description

A-A

- / V

with

with

FIG. 2

The invention relates to the forest industry and can be used for group debarking of timber.

The purpose of the invention is to increase the productivity and efficiency of the debarking process.

FIG. 1 shows the proposed installation, top view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2; in fig. 4 is a view along arrow B in FIG. 2

The graft plant contains two cylindrical sections 1 and 2 mounted in parallel on the base by means of rollers 3 and retaining rings 4. The rotational movement of the sections is carried out by means of the gear rims 5 and the cylindrical gear 6. The sections can be rotated from one drive and from individual drives (the second variant is shown in drawing dotted line).

Timber and cylindrical sections come through the boot device 7 in the form of a tray. Segments 8 are installed on the outer surface of the cylindrical housings and there are windows 9. The segments are attached to the outer surface of the sections using eyelet 10 and bolted connection 11. The working surface of the segment is made in the form of a row of teeth 12. When two sections meet simultaneously, the other segments 8 enter through windows 9 into the corresponding section. The fixed knives 13 are fixed on the inner surface of the sections. The discharge part of each section is made in the form of a truncated cone 14. The bark and rot from the sections exit through the windows and enter the conveyor 15. The minimum width bz of the window 9 is determined based on the impossibility of falling out of round materials of minimum diameter d.

02 d b2 bi + 2h,

where bi is the width of the segment 8;

h is the thickness of the bark.

The shorting installation works as follows.

During the synchronous rotation of sections 1 and 2 towards each other, the timber stored in them is subjected to group debarking. The chamfer occurs due to the friction of the timber with each other and about the knives 13, as well as due to the impact and collapse of the mass of timber that moves inside the drum along a closed path (indicated by arrows in the drawing). With

by rotating the cylindrical sections, the debarking segments 8 having a serrated surface enter through the windows 9 into the inside of the cylindrical section.

In the initial period of the entry segment

an intense impact of the bark from the surface of the timber located in the window zone occurs through the teeth. Upon further implementation, the segment acts on timber, pushing them away from the inner surface of the cylindrical section, thereby creating active shear stresses and strains.

When both sections are rotated a few degrees, the segment leaves the section and interacts with other timber, stripping the bark from them, and also pushing the upper part of the timber down. In this case, the collapse occurs not only under the action of its own weight of timber, but with a direct impact on them of the segment, which penetrates into the section and pushes them. This increases the efficiency of the process.

debarking, as they significantly increase in magnitude of deformation, compression, shear, abrasion, and impact. In addition, bark and rot are intensively removed through the windows, which also contributes to

efficiency of the debarking process.

When teeth are blunt, the 12 segments are easily removed and set back in place after sharpening.

The use of the debarking unit allows for the kinetic energy of the rotating sections to provide additional impact of the debarking segments on the timber, while significantly increasing the productivity of the equipment and the efficiency of the debarking process. In addition, this arrangement allows separate debarking of wood of different species.

Claims (1)

Invention Formula A short leg installation, including rotating cylindrical sections with debarking elements in the form of segments, is characterized in that, in order to increase the productivity and efficiency of the debarking process, the sections are installed in parallel with the possibility of synchronous rotation towards each other, and and on the other is fitted with segments included in these windows. Фцг.З In id FIG. B