RU2537558C1 - Grubber - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: grubber comprises a frame 1, a hinge mechanism 2, the support wheels 3, an undercutting bracket, an additional frame 9 with the rotor 11, the hydraulic mechanisms 10 of controlling additional frame with the rotor. The racks of the undercutting U-shaped bracket are pivotally connected to the frame and are made in the form of double-armed hydraulically controlled levers 4 and 5, which enable to direct part of the motor power of the tractor to turn the undercutting bracket and cutting large roots of different species, simultaneously increasing the driving force of the machine, created by the propulsion units of the tractor.

EFFECT: with this implementation the roots of different diameters can be cut, it is possible to pull stumps with their row and chaotic placement, which enables to increase the productivity and quality of grubbing.

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Description

The invention relates to forestry engineering, in particular to uproots as continuous action for uprooting stumps arranged in parallel rows (forest crops, forest shelter belts and other similar plantings), and positional action used to uproot stumps at a chaotic location on clearings and burns of natural forests.

Known uprooter of continuous operation KND-1,1 (Machines and mechanisms of forestry and forestry. Handbook. M. 2009. - S.206-207), made according to copyright certificate SU No. 1323033, A01G 23/06, containing a frame, a linkage mechanism , support wheels, cutting bracket with U-shaped knife, lifts, additional frame, rotor and drive.

However, the continuous uprooter is not designed to uproot stumps when they are randomly located on forest clearings and do not cut large roots at once. When meeting with large roots, the uprooter is transferred to the transport position, the unit reverses back and then makes a second working move or enters and cuts the roots from the opposite side. As a result, the productivity and quality of work of the uprooter is reduced, a deep track is formed due to slipping of the tractor propulsion, the knife is deformed.

The invention solves the problem of uprooting stumps both arranged in rows, and randomly, to increase the reliability, performance and quality of uprooting.

This is achieved by the fact that in the tiller, which includes a frame, a hitch mechanism, support wheels, a cutting bracket with a U-shaped knife, lifts, an additional frame, a rotor and a drive, according to the invention, the struts of the cutting bracket are made of two-arm hydraulic arms and are connected to the frame articulated resting against adjustable stops when the bracket is in a deep position.

Figure 1 shows the uproot, side view; figure 2 is the same, a top view.

The uprooter (Figs. 1, 2) includes a frame 1, a linkage mechanism 2, support wheels 3, a cutting bracket, racks of which consist of lower 4 and upper 5 levers connected to the frame articulated 6, a cutting knife 7, lifts 8, an additional frame 9 pivotally connected to the frame 1 and controlled by an external hydraulic cylinder 10, the rotor 11 with the chisels 12 and the hydraulic motor 13. The cutting bracket is rotated on the hinges 6 by means of hydraulic cylinders 14 mounted between the frame 1 and the upper arms 5 of the staples of the bracket resting against the stops 15.

The uproar works as follows.

With the translational movement of the unit, the cutting knife is deepened to a predetermined depth, regulated by the support wheels, and the horizontal and vertical directions of the soil layer and the roots of the stumps are cut within its working width due to the tractor traction force developed by its propulsors (tracked, wheeled or combined). When meeting with roots of large diameter, which occurs when rooting out stumps that have powerful root legs (oak, maple, etc.) or the central root of large diameter (aspen, pine, etc.), when the traction force is not enough, then to prevent slipping tractor drivers, the operator stops the unit and drives the hydraulic cylinders 14, which realize part of the engine power through the tractor hydraulic system, create additional force, rotate the upper levers of the struts of the cutting bracket back, and lower the levers together with the trim he stabbed forward; from position I to position II (figure 1). As a result, large roots are cut, after which the bracket returns to its original position until the upper levers of the stops 15 touch, with which the angle of entry of the cutting knife into the soil is adjusted. If the force developed by the hydraulic cylinders 13 is not enough, then a combined version is used, tractor movers are added, creating traction. As a result, the tractor engine power is simultaneously used on two channels - through propulsors and a power take-off shaft or its hydraulic system. The cut soil layer along with the stump moves along the surface of the knife and enters the elevators 8, rising upwards, the crumbling of the formation and partial cleansing of the stump from the soil occurs, and then it falls under the action of beat 12 of the rotating rotor 11, where the stump is finally cleaned from the soil and throwing it to the surface.

When working on deforestation of natural forests, where stumps are placed randomly, a continuous process of rooting out of stumps is excluded. Under these conditions, the process of rooting out stumps occurs as follows. 1.5-2 m to the stump during the movement of the unit, the staples are deepened, the knife is brought under the stump and the roots are cut before the tractor movers slip. Hydraulic cylinders are turned on the brackets, and simultaneously with the translational movement of the unit, the roots are completely trimmed and removed by the hoists and rotor beams to the surface, after which the stubber is transferred to the transport position. To deepen the staples, cutting the roots of the stump, removing it and the staple out of the soil, no more than 3 m is required.

Claims (1)

Rigger including a frame, a linkage mechanism, support wheels, a cutting bracket, an additional frame with a rotor, hydromechanisms for controlling an additional frame with a rotor, characterized in that the racks of the cutting U-shaped bracket are hinged to the frame, made in the form of two-arm hydraulically controlled levers that allow you to direct part of the tractor engine power for turning the cutting bracket and cutting large roots of different breeds, while simultaneously enhancing the driving force of the unit created by the tractor propulsion.

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