RU2265318C2 - Delimbing-bucking transportation machine - Google Patents

Abstract

FIELD: harvesting equipment used in forestry for performing stand care works.

SUBSTANCE: delimbing-bucking transportation machine consists of tandem including running chassis (of wheel-type tractor or caterpillar tractor) and carrier hydraulic manipulator fixed on side members of running chassis, on immovable part of column and equipped with clam. Delimbing-pulling type bucking processor is secured on single-axis or multiple-axis load-bearing platform. Said processor is connected to hydraulic system through three-position valve for switching-on of hydraulic motor in order to provide rotation of chain bar cutting chain and feeding of working fluid for actuation of hydraulic motor which provides rotation of pulling rollers. Clamping levers with blades and pulling rollers are longitudinally interconnected through tie-rods by means of threaded couplings. Delimbing-bucking machine of such construction allows volume of tree harvesting including short wood and plank timber to be increased and number of transportation and handling operations to be reduced.

EFFECT: increased efficiency in environmental harvesting and stocking of raw wood material, elimination of manual labor, reduced loss of young growth and undersized trees to thereby intensify reproduction of forest resources and reduce environmental damage.

3 cl, 7 dwg

Description

The invention relates to forestry equipment and can be used in the forest industry, in particular in leskhoz forest care.

A known machine includes a self-propelled chassis of a wheeled or caterpillar tractor, on which an operator’s cab is mounted and its tow hitch is equipped at the rear, equipped with a cable of considerable length at the end with a choker device for gripping trees and skidding them to storage places for trimming knots and cutting logs of whips (see operation manual "Tractor" Belarus "second additional edition, publishing house" Harvest ", Minsk, 1970)

The closest in technical essence to the proposed invention is a machine in which a gripping body is pivotally mounted on a longitudinal frame (see USSR author's certificate No. 109681 MKI G 28/08).

The absence of a rigid connection is the main disadvantage of this design, since the skidding grab (gripping body) is in a swinging state when the machine is moving, installation of knives and trimming of knots is not possible.

The objective of the present invention is to increase functionality, the exclusion of manual labor pruning branches and bucking tree trunks.

The task is achieved by the fact that the proposed (known) forestry machine, which includes a self-propelled chassis (wheeled or tracked tractor) with a hydraulic manipulator, is equipped with a load-carrying uniaxial or biaxial and more platform, with a delimbing-pulling buckling processor fixed to it, which form a tandem knot together -driving machine.

The processor includes a gripping body in the form of clamping levers with cutting knives for cutting knots, as well as pulling rollers, which are paired with a shaft and rollers and have one common drive in the form of a hydraulic cylinder that rotates the clamping levers with knives and pulling rollers using length-adjustable rods .

On the rear wall after the pulling rollers, a saw bar is fixed with a drive for rotating the saw chain from the hydraulic motor and turning it with a hydraulic cylinder, with the help of which the tree is cut out after cutting the branches.

The technical result in the performance of the task is to increase the technical and economic effect.

This machine increases productivity, expands the volume of wood raw materials in the form of assortments and sawlogs in the production of thinning, as well as dramatically reduces transport and relocation operations and reduces the timing of forest reproduction.

Figure 1 shows a delimbing and cross-linking transport machine (consisting of a tandem of a running chassis and a uniaxial, biaxial and more load-bearing platform).

Figure 2 is a view of the delimbing-dragging-out cutting processor, top view.

Figure 3 is a side view of A of the processor of figure 2.

Figure 4 is a view along section BB of the processor of figure 2.

Figure 5 is a view along B in figure 2, shows the thrust.

In Fig.6 - delimbing and cross-linking transport machine, (tandem, consisting of a running chassis and a biaxial load-bearing platform).

In Fig.7 is a hydraulic diagram of a delimbing-and-slaughtering transport machine.

The delimbing and cutting machine consists of a tandem and includes a chassis 1 of a wheeled or caterpillar tractor, on the side members of which there is a hydraulic manipulator 3 with a grab grab 4 mounted on a fixed part of the column 2, as well as of a uniaxial and more load-carrying platform 5 with a delimbing-mounted pulling bucking processor 6, gearbox 7 for taking power from the shaft and distributing it to two pumps 8, 9, tank 10 for hydraulic fluid, two hydraulic valves 11,12 with control levers 13. The rotary part of the column using the hydraulic cylinder 14 is designed to rotate the crane.

The machine is equipped with outriggers 15, 16, the hydraulic cylinders of which are secured with second ends on the fixed part of column 2.

The pusher 17 is equipped with a hydraulic cylinder 18, which is controlled by the tractor control valve. The hydraulic cylinder of the boom of the hydraulic manipulator, outriggers are equipped with hydraulic locks 19 (see Fig. 7).

The delimbing-pulling bucking processor is connected to the hydraulic system using a three-position valve 20 to turn on the hydraulic motor 21 to rotate the cutting chain of the saw bar 22 and supply the working fluid to turn on the rotation of the pulling rollers 23 by the hydraulic motors 24.

The tractor hydraulic distributor also controls the hydraulic cylinders 25 for turning the saw tire and the hydraulic cylinders 26.27, which are connected in parallel to the hydraulic system and operate synchronously and rotate the clamping levers with knives 28 and the pulling rollers, while the hydraulic motors of the pulling rollers are placed in cassettes 29 and fixed rigidly to the shaft 30 and roller 31 together with clamping levers with notes.

The rotation of the shaft is carried out by a lever 32, driven by a hydraulic cylinder 27.

The clamping levers and pulling rollers are interconnected and are adjustable in length by rods 33 using threaded couplings 34, which are automatically rotated by electric solenoids 35.

The machine operates as follows. The proposed machine is designed for harvesting assortments or logs during thinning trees, selective felling, as well as for clear cutting.

For selective felling, corridors are used in forest stands or a network of technological passages is prepared (at a distance of 25-30 m from each other for the car to pass under the canopy of the crown).

The felling of trees is carried out by gasoline-powered saws in the direction perpendicular to the technological passage.

Due to the fact that the trees are fed to the pulling rollers by a hydraulic manipulator, the trees standing in the zone of its action fall down in the direction from the technological corridor, and those located at a greater distance - in the opposite direction from the technological corridor.

The machine, moving along the corridor under the canopy of the crown, by a hydraulic manipulator 3 and a grab grab 4, takes the butt of the tree, installs outriggers 5, 6 on the ground and with the help of them hangs the machine, its stability increases sharply, then puts the butt of the butt into the processor (see Fig. 1) a hydraulic cylinder 27, a lever 32 and a rod 33, the tree is clamped by levers with knives 28 and pulling rollers 23.

By switching the crane 20, the working fluid is directed along the highway to the hydraulic motors 24, which rotate the pulling rollers 23, the tree, moving, finds knots on the levers 28 with notes, pruning of the knots occurs.

A distinctive feature of the processor is the automatic adjustment of the pressing force of delimbing knives and pulling rollers to the tree by installing adjustable rods 33 in length due to threaded couplings 34, which are rotated by electric solenoids 35.

The operation of the bucking unit can be carried out automatically according to several programs called by the microprocessor.

At the same time, it is possible to use the simplest and cheapest option, which provides in this case a visual assessment of the length of the sawn logs or logs. To do this, the crane 20 shut off the flow of the working fluid to the hydraulic motors 24, the dragging rollers stop rotating at the required length with an assortment for cutting. The crane in the third position feeds liquid into the hydraulic motor 21, while the chain of the saw bar 22 starts to rotate, which is rotated by the hydraulic cylinder 25 and cuts off the next assortment.

After trimming the knots and cutting the whip, the machine with a hydraulic manipulator 3 and a grab grab 4 stores the assortments or sawlogs on a load-bearing platform and moves to the next fallen tree.

After filling the load-carrying platform, it goes into the transverse passage and loads the wood onto a nearby timber transport and returns to the technological corridor to continue harvesting wood.

When hanging on the end of the boom of the hydraulic manipulator a gripping-cutting device, this machine can operate in the harvester mode.

This machine increases productivity, expands the volume of harvesting wood raw materials in the form of assortments and sawlogs, and also reduces sharply transport and relocation operations.

It is known that thinning is the most important additional source of raw materials. The use of this machine on thinning will increase the additional production of wood. Machines will exclude the manual labor of lumberjacks. Losses among undergrowth and small-sized trees will be significantly reduced, which will significantly accelerate the reproduction of forest resources and reduce the damage to the ecology of the forest.

Claims (3)

1. A delimbing and cutting machine, including a chassis of a predominantly wheeled tractor, a hydraulic manipulator, a load-bearing platform, a pusher, and outriggers, characterized in that a delimbing and cutting processor is mounted on the load-bearing platform, which is equipped with a hydraulic cylinder for turning the saw tire and hydraulic cylinders for turning the clamping levers rollers, hydraulic motors for pulling rollers are placed in cassettes, mounted on the shaft and rollers together with clamping levers with knives. 2. The machine according to claim 1, characterized in that the delimbing-pulling bucking processor is connected to the hydraulic system using a three-position valve to turn on the hydraulic motor to rotate the cutting chain of the saw bar and supply a working fluid to turn on the hydraulic motor to rotate the pulling rollers. 3. The machine according to claim 1, characterized in that the clamping levers with knives and pulling rollers are interconnected by length-adjustable rods using threaded couplings.

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