SU640707A1

SU640707A1 - Tree-cutting arrangement

Info

Publication number: SU640707A1
Application number: SU752155359A
Authority: SU
Inventors: Григорий Иудович Торговников; Георгий Васильевич Лысов
Original assignee: Научно-исследовательский институт "Титан"
Priority date: 1975-06-13
Filing date: 1975-06-13
Publication date: 1979-01-05

Description

1one

Изобретение может быть использовано в лесной промышленности на валке леса.The invention can be used in the forest industry on felling.

Известны устройства дл срезани дерб- вьев, включающие ножевое полотно с режущим лезвием .Derby cutting devices are known, including a knife blade with a cutting blade.

Недостатком известных устройств вл етс то, что при срезании мерзлых Деревьев ножами силового резани возникают очень большие усили , что ведет к ут желению конструкции. Кроме того, по вл ютс сколы и трещины в стволе от места реза, что ведет к порче наиболее ценной комлевой древесины.A disadvantage of the known devices is that when cutting the frozen Trees with power cutting knives, very large forces arise, which leads to the relaxation of the structure. In addition, chips and cracks in the trunk from the place of cutting appear, which leads to damage to the most valuable butt wood.

Це-ль изобретени - повыщение эффективности резани .The goal of the invention is to increase cutting efficiency.

Достигаетс это тем, что ножевое полотно выполнено с волноводом в виде расположенного параллельно рюжущей кромке лезви паза, в котором расположен источник СВЧ электромагнитной энергии, а лезвие ножа выполнено с отверсти ми, соеди- н ющимис с волноводом. Причем волновод выполнен с дополнительным пазом, расположенным параллельно основному пазу, ИThis is achieved by the fact that the knife blade is made with a waveguide in the form of a groove arranged parallel to the cutting edge of the blade, in which the microwave source of electromagnetic energy is located, and the blade of the knife is made with holes connecting the waveguide. Moreover, the waveguide is made with an additional groove located parallel to the main groove, And

соединен с ним отверстием. Кроме того, волновод и отверсти заполнены радиопро рачным диэлектриком, например керамикой,connected with a hole. In addition, the waveguide and the holes are filled with a radiowire dielectric, for example, ceramics,

На фиг. 1 изображено устройство дл срезани деревьев, смонтированное на гидроманипул торе лесозаготовительной машины , вид сбоку; на фиг. 2 - устройство дл срезани деревьев с системой подачи СВЧ энергии от генератора, вид сверху; на фиг. 3 - нож| на фиг. 4 - разрез Л-А фиг. 3j на фиг. 5 - вариант выполнени ножа; на фиг. 6 - разрез Б-Б фиг. 5; на . 7 - разрез В-В фиг. 5.FIG. 1 shows a tree-cutting device mounted on a hydraulic manipulator of a forest machine, side view; in fig. 2 - a device for cutting trees with a system for supplying microwave energy from a generator, top view; in fig. 3 - knife | in fig. 4 is a sectional view of FIG. 3j in FIG. 5 shows an embodiment of a knife; in fig. 6 is a section BB of FIG. five; on . 7 is a sectional view BB of FIG. five.

Устройство дл срезани деревьев включает ножевое полотно, выполненное, например , в виде двух ножей 1 с режущим леэвием и гидронилиндром 2 поворота ножей..The device for cutting trees includes a knife blade, made, for example, in the form of two knives 1 with a cutting arm and a hydraulic line 2 turning knives ..

Claims

The tree-cutting device is mounted at the end of the hydraulic manipulator 3 of the logging machine 4. On the machine 4, the microwave generator 5 is mounted, from which feeders 6 go to the knives 1, feeders 7 are connected to the waveguide system of the knife, consisting of waveguides 8 and 9 having wide 10 and narrow 11 walls. The upper and lower parts of the conduit 9 are connected by an opening 12. The waveguides 8 and 9 have, in narrow walls, radiating holes 13, extending onto the plane 14 of the lei. The device for cutting trees works as follows. Using the hydraulic manipulator 3, mounted on a logging machine 4, the device is brought to the tree. The oil supply to the hydraulic cylinder 2 is turned on. At the same time, the power from the microwave generator 5 through the feeders 6 to the waveguide system of the knife is turned on. The hydraulic cylinder 2 yawns the knives 1, and they are embedded in the wood. In this case, the microwave power through perekhody 7 enters the waveguide 8 (Fig. 4) or the waveguide 9 (Fig. B). From waveguides 8 and 9, microwave energy is radiated through holes 13 in the UVC walls of the waveguides into the wood. Wood intensively absorbs the energy of C.H. CH and simultaneously with cutting, wood is heated in the cutting zone. Since water is a dipole liquid, it abnormally absorbs the energy of an electric magnetic field in the centimeter region; ox At temperatures from 0 to –Z 0 C in wood there is a 3.2% C of 30% of non-moisture, which is even more intense than at positive temperatures pax, absorbs microwave anergy, which leads to t rapid thawing of wood in the cutting zone. In this case, the effect of a sharp, weakening of the strength of the frozen wood is achieved by thawing only bound moisture: from the melted wood is cut with a force less than frozen by 5080%. The number of chips and cracks is significantly reduced, which saves the pain of 6,074 times the amount of the most valuable butt wood. In order to prevent the wood shaker from cutting into the radiating hole 13 and to increase the strength of the knife 1, the cavities of the waveguides 8 and 9 and the holes 13 are filled with a radio-transparent dielectric, for example, ceramics. The wave guides in the knives can be made into round, rectangular, oval, or other convenient for the design knife blade forms. Claim 1. Device for cutting trees, including a knife blade with a cutting blade, characterized in that, in order to increase cutting efficiency, the knife blade is made with a waveguide in the form of a groove located parallel to the cutting edge of the blade, in which the source of the microwave electromotive energy is located, and the blade of the knife is made with ic holes that connect with wave 2. The device according to claim 1 is in such a way that the wave guide is made with an additional groove located parallel to the main groove and connected to nm hole. 3. The device according to claim. 1 | This is due to the fact that, in order to increase the reliability of the structure, the waveguide and the hole are filled with a radio transparent dielectric, for example, ceramics. Sources of information taken into account for the examination: 1. US patent number 372О249, cl. 144-ZO9, 1973.

2. US patent number 3720246, cl. 144-3, 1973.