RU169678U1 - DEVICE FOR LARGING LONG-DIMENSIONAL SORTMENT - Google Patents

Abstract

The device for debarking long assortments contains a cylindrical shell with debarking beams rigidly connected to it, as well as an input tray adjacent to one of the ends of the shell and an output tray adjacent to the opposite end of the shell, the input tray being made with an angle of inclination from 2 to 15 ° to the horizontal plane and the output tray is made with an inclination to the horizontal plane from 5 to 15 °, while the ratio of the length of the cylindrical shell to its diameter is from 1.3 to 2.1. Effect: increase the efficiency of debarking long assortments.

Description

The proposed device belongs to the class of bark-peeling drums, is intended for debarking of tree trunks in a rotating drum, corresponds to IPC B27L 1/04; B27L 1/05.

Known debarking drum according to patent for invention RU 2036081 [1], comprising a rotating cylindrical body and a longitudinal beam mounted motionless relative to the body. The drum is equipped with fixed segments and movable wheels mounted alternately on the longitudinal beam. However, this drum is difficult to manufacture, unreliable and inefficient in operation.

Known bark drum according to the patent for utility model RU 78457 [2], which includes sequentially installed horizontal cylindrical sections in which there are hollow okorniki on the inner side surface, and a shutter having a circle shape with a radius of 1.25 radius bore drum. However, this bark-peeling drum is not effective enough when cleaning round timber from bark.

Known debarking drum according to patent for invention RU 2377122 [3], consisting of a shell and debarking beams, and debarking beams have removable spikes in the form of wavy pentagonal rods. The shell is an open cylindrical structural element in the form of a pipe of small length. Detachable spikes in the form of pentagonal rods mounted on the debarking beams complicate the design, creating an excessively large force impact localized in the area of impact of the barked log and the specified removable spike, which causes destruction not only of the bark, but also undesirable destruction of the wood of the barked trunk. Thus, the design of this drum creates conditions for increasing wood loss, which negatively affects the efficiency of its functioning.

The closest analogue, selected as a prototype, is the picking drum according to the patent for utility model RU 16273 [4], comprising a housing, debarking beams on the inner surface of the housing and an additional drum with beams that can be moved in a horizontal plane. However, this bark-and-peeling drum is difficult to manufacture, insufficiently reliable and ineffective in operation when cleaning long barks of assortment, the length of which exceeds the diameter of the bark-and-drum.

The above disadvantages of the known devices are eliminated in the proposed technical solution of the device for debarking long assortments.

The technical result from the use of the proposed device for debarking long logs is to increase the debarking efficiency by creating the necessary conditions in the structure for the appearance of additional forces that cause the destruction of the bark and its separation from the wood to be barked logs, which leads to an intensification of the technological process of cleaning round timber from bark.

This technical result is achieved due to the fact that the device for debarking long assortments, which includes a cylindrical shell with debarking beams rigidly connected to it, as well as an input tray adjacent to one of the ends of the shell and an output tray adjacent to the opposite end of the shell, characterized in that the input and output trays are made inclined, and the angle of inclination of the input tray to the horizontal plane is from 2 ° to 15 °, while the output tray is made with an inclination downward, and the angle at the slope of the output tray to the horizontal plane is in the range from 5 to 15 °, and the ratio of the length of the cylindrical shell to its diameter is from 1.3 to 2.1.

The essence of the utility model in the form of a device for debarking long assortments is illustrated by the following graphic materials presented in FIG. 1-6.

In FIG. 1 schematically depicts the proposed device containing a section 1 in the form of a cylindrical shell 2, which is located between the input 3 and output 4 trays designed to transport round timber before and after debarking. The direction of movement of the painted round timber is shown by an arrow, the arcuate arrow indicates the direction of rotation of section 1 during operation of the device.

In FIG. 2 shows a sectional view of section 1, debarking beams 5, and assortments 6 to be cleaned from bark.

In FIG. 3, a solid line schematically shows one of the varnished varnishes, which is bent under the influence of its own weight, while the upper part of the assortment 6 is compressed, and its lower part is stretched. The dotted line shows the input tray 3, the cylindrical shell 1 and the output tray 4.

In FIG. 4, a solid line schematically shows one of the varnished varnishes, which is bent under the influence of its own weight, while due to bending the lower part of the assortment 6 is compressed, and its upper part is stretched. The dotted line shows the input tray 3, the cylindrical shell 1 and the output tray 4.

In FIG. 5, a solid line schematically shows one of the varnished varieties that is bent under its own weight, while due to bending the lower part of the assortment 6 is compressed, and its upper part is stretched. The dotted line shows the input tray 3, the cylindrical shell 1 and the output tray 4.

In FIG. 6, a solid line schematically shows one of the varnished grades, which is bent under the influence of its own weight, while due to bending the lower part of the assortment 6 is compressed, and its upper part is stretched. The dotted line shows the input tray 3, the cylindrical shell 1 and the output tray 4.

All elements of the device are made of steel.

The location of the input tray with a slope at an angle α and the output tray at an angle β in FIG. 3 and 4, as well as in FIG. 5 and 6 ensures the creation of conditions for improving the efficiency of the device by creating the necessary conditions for bending assortments and the appearance of additional forces in the compressed zone of each of the varnished grades 6, causing in these zones the intensification of the separation of the bark from the wood of the varnished timber and thereby increasing the effectiveness of removing bark.

The output tray is inclined downward at an angle β. The input tray 3 also runs downwardly in FIG. 3 and 4, which ensures the emergence of a force oriented in the direction of the slope and facilitating the movement of the varnish to be varnished 6 to section 1, which results in a reduction in energy costs for moving the varnished round timber 6 along the tray 3. Thus, the slopes of the trays 3 and 4 of FIG. 3 and 4 are preferred in terms of energy efficiency. However, depending on the required degree of cleaning, as well as depending on the species, bark thickness, humidity and temperature of the wood of the wood to be coated, grades 6 may be more effective by the criterion of quality of debarking, the inclination of the input tray 3 in the opposite direction with respect to the inclination of the output tray 4 in FIG. 5 and 6.

In order to increase the debarking efficiency due to bending and, as a result, the appearance of the above additional forces in the compressed zones of the barkable range, causing in these zones the intensification of the separation of the bark from the wood of barkable round timber in the form of grades 6, the length of the shell 1 is greater than its diameter, at least , 1.3 times and, as a maximum, 2.1 times, i.e. the ratio of the length of the cylindrical shell to its diameter is from 1.3 to 2.1.

If the ratio of the length of the specified cylindrical shell to its diameter is less than 1.3, then the degree of purification of the assortments 6 from the bark may be insufficient; in addition, the risk of destruction of assortments 6 increases due to excessively intense exposure when bending. With an increase in this ratio in excess of 1.3, the degree of purification from the bark increases, and the risk of destruction decreases. However, if the ratio of the length of the specified cylindrical shell to its diameter is more than 2.1, then the influence of the bending of the assortments 6 is significantly reduced and, as a result, the effect of the above additional forces in the compressed zones of the varnished range, causing in these zones the intensification of the separation of the bark from the wood of the varnish round timber in the form of assortments 6. For the manifestation and use of this effect in order to increase the efficiency of debarking of long assortments 6, corresponding slopes of the input 3 and Khodnev 4 trays.

If the value of the angle α is less than 2 °, then its influence on the effect created by the appearance of the above additional forces is negligible. With increasing angle α, this effect increases. However, if the specified angle α is greater than 15 °, then the effect of this effect can lead to the destruction of the varnish range due to excessive bending.

If the value of angle β is less than 5 °, then its influence on the effect created by the appearance of the above additional forces is negligible. With increasing angle β, this effect increases.

However, if the specified angle α is greater than 15 °, then the effect of this effect can lead to the destruction of the varnished grades due to excessive bending.

The operation of the device for debarking long assortments. The round timber 6 intended for cleaning from the bark is loaded into section 1. As in the bark-peeling drum, a necessary condition for the operation of the device is the rotation of section 1 relative to its longitudinal axis. The direction of rotation 1 is shown by an arcuate arrow in FIG. one.

In the proposed device, when the case is rotated in the form of a section 1, the varnished varnishes collide with each other and with the inner surface of the housing 1. The inclined trays of FIG. 3 and 4 create the above conditions for additional bending of the varnished long-length assortments 6 and thereby increase the efficiency of cleaning the assortments 6 from bark. The movement of the varnished grades 6 along the trays is provided by the well-known standard and therefore not shown in FIG. 1, 3 and 4 live rolls placed in trays.

The varnished varieties are loaded into the tray in 3 groups, the number of varieties in the group depends on the diameter of the varieties 6, the required degree of cleaning and other technological factors.

Thus, thanks to a set of distinctive features and their combined influence on the effectiveness of cleaning long barks from the bark, the proposed device, when functioning, ensures the achievement of the claimed technical result.

Information sources

 1. Debarking drum. Patent for invention RU 2036081, IPC B27L 1/05. Published: May 27, 1995.

2. Bark-peeling drum. Utility Model Patent RU 78457, IPC B27L 1/02; B27L 1/04. Published: November 27, 2008.

3. Debarking drum. Patent for invention RU 2377122, IPC B27L 1/05. Published: December 27, 2009.

4. Bark and peeling drum. Utility Model Patent RU 16273, IPC B27L 1/00. Published: December 20, 2000.

Claims (1)

A device for debarking long assortments, including a cylindrical shell with debarking beams rigidly connected to it, as well as an input tray adjacent to one of the ends of the shell and an output tray adjacent to the opposite end of the shell, characterized in that the input and output trays are made inclined, moreover the angle of inclination of the input tray to the horizontal plane is from 2 to 15 °, while the output tray is made with an inclination downward, and the angle of inclination of the output tray to the horizontal plane is in the range from 5 to 15 °, and the ratio of the length of the cylindrical shell to its diameter is from 1.3 to 2.1.

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