SU1144656A1 - Stump puller - Google Patents

Abstract

1. BOOTER, - containing frame, attachment for connection to the tractor, support wheels and undercut working body with writhing ribs placed in its rear part, characterized in that, in order to reduce energy intensity and improve the quality of uprooting, undercutting the working body is made in the form of two flat inclined corrits, /////// f /////// 7, the cheeks of the coupled posts are V-shaped, and the writhing ribs are placed on one of the inclined struts parallel to the opposite one. 2. The ramor as claimed in claim 1, characterized in that the angle of the solution of the V-shaped inclined matching struts is 90 °. 3. The flare gear according to claim 1, characterized in that the angle of inclination of the V-shaped uprights to the direction of the clearing in the plane of the wall of the furrow is 50 °, and the angle of inclination of the frontal plane of the cutting edges to the direction of the clearing is 40 °. 4. The hooker according to claim 1, characterized in that the longitudinal horizontal beams of the frame are rotated respectively to the left and to the right from the direction of the rooting by a cutting angle of 19-25 °.

Description

The invention relates to the forest industry and can be used in protective forest cultivation when stumping stumps, shrubs, small woods, individual trees of the first age period, and pneumos sprouts together with boulders during the reconstruction of protective forests. Known stubblers mounted on the tractor and including the frame, undercut the working body in the form of a rectangular U-shaped bracket with the writhing ribs 1 and 2 placed in its rear part. The drawback of these devices is their heavy haul resistance caused by the large frontal resistance horizontal parts of the knife and the harmful forces of friction against the walls of the furrows from the side struts due to the undercutting of the working body in the form of a rectangle. When the well-known uprailers work in one season, the blade of the undercutting organ is significantly worn out and the device is completely rejected. The weight of the pruning and shaking bodies, depending on the modifications, ranges from 187 to 259 kg. When the radius of curvature of the blades of the knife is over, 3 mm of the roots of stumps, bushes or trees hang on the knife and on the vertical uprights. This does not lead to cutting of the roots and lobes of the mon, but to its pulling out and rupture of the roots. In this case, the thrust force of the picker increases by a factor of 2–3. This disadvantage is caused by the lack of interchangeable cutting elements. The joints at the transitions of the horizontal knife of the vertical posts are foci of overhanging uncut roots and sticking to the soil. This is also one of the factors for increasing drag resistance. The execution of the undercutting tool in the form of a U-shaped rectangular bracket leads to the cutting out of a mon with a large clod of earth. The ribs of the writher, placed in the rear part of the undercutting organ, do not have a significant deformation on the stump with a clod of earth. Their position leads to laying mon with a lump in the furrow. This makes their subsequent cleaning difficult. The purpose of the invention is to reduce energy consumption and improve the quality of clearing. This goal is achieved by the fact that in a rake, containing a frame, a hinged device for connecting to a tractor, support wheels and undercut working body with writhing ribs placed in its rear part, undercut working body is made in the form of two flat inclined V-ramps -shaped shape, and the writhing ribs are placed on one of the inclined struts and parallel to the opposite one, while the angle of the solution of the V-shaped inclined matching struts is 90 °. The angle of inclination of the V-shaped uprights to the direction of cleavage in the plane of the walls of the furrow is 50 °, and the angle of inclination of the frontal plane of the cutting edges to the direction of uprooting is 40 °. In addition, the longitudinal horizontal beams of the frame are rotated respectively to the left and to the right of the direction of pulling on a cutting angle of 19-25 °. FIG. 1 shows a rooting lifter, side view; in fig. 2 - the same, top view; in fig. 3 - the same, front view; in fig. 4 - axonometric image of undercutting working body; in fig. 5 is a section A-A in FIG. one; in fig. 6 is a sectional view in FIG. 3. The rooster contains a frame 1 with a combined hinge 2, support wheels 3 with screw mechanisms, undercut working body 4 and writhing fins 5. Working body 4 contains flat inclined posts 6, removable reversible knives 7 and stops 8; The gripping fins 5 are welded to the pt 9 on the back of one of the inclined posts 6, and the fins 5 are parallel to the opposite inclined wall of the groove. The setting angle of the ribs 5 to the bottom of the furrow wall is 25-30 °. On the sides of the knives 7, square holes are arranged along the axis of symmetry 10 for fastening the knives with bolts 11 to inclined stands 6. Cutting bolts 11 during operation of the leveling device is eliminated by stops 8. The angle of inclination of the stands 6 to the bottom of the furrow in the wall plane is 50 °. The tilt angle of the uprights 6 in the longitudinal-vertical plane along the axis of symmetry of the lifter is 40 °. Rooster works as follows. A saddle assembly using the sedan method enters a site with a number of stumps that need to be uprooted. By hydraulic system of the tractor, the lifter is lowered onto the surface of the floor, before reaching one or two meters before Mon. When the machine moves, the lifter buries to the depth of the grubbing limited by the support wheels 3. When the machine moves, the knives 7 of the inclined legs 6 of the working body 4 are cut first of all by the side roots of the mo in the soil. Further, the vertical roots are cut with the same knives 7. A fully trimmed stump enters the ribs 5 of the squinting organ and, sliding along them, is pushed onto the rim of the furrow. The deformed and loosened soil passes between the ribs and is laid in an open furrow. During operation in wet soil and climatic conditions, as well as in rainy conditions.

Seasons The stump is pushed onto the curb of the furrow with a clod of earth. In this case, under the influence of precipitation, wind and, the sun, the active vital activity of microorganisms, the soil on the stump roots is dried and showered. Even the cutting of stumps with a dry clod of earth under the influence of the vital activity of soil microorganisms leads to physical ripeness of the soil.

The implementation of the undercutting tool of the proposed device makes it possible to reduce the cutting force of the soil layer and the roots of the sun more than twofold, as well as

reduce by two or more times the mass of the earth on Mon x.

In addition to the noted advantages, the proposed upraiser resolved the issues of eliminating root loops not joints, interchangeability and replacement of the cutter, their elements, weight reduction of the undercut, its working body, extraction of the mon reliability of the technological process performed during continuous movement.

Aa ui.5

FIG. B

Claims (4)

1. TIGER, - comprising a frame, an attachment for connecting to a tractor, support wheels and a cutting working body with writhing ribs located in its rear part, characterized in that, in order to reduce energy consumption and improve the quality of uprooting, the cutting working body is made in the form • two V-shaped mating struts, inclined to the direction of rooting • of the mating legs, and writhing ribs are placed on one of the inclined racks parallel to the opposite. 2. The eradicator by π. 1, characterized in that the angle of the solution of the V-shaped inclined mating racks is 90 °. 3. The uproader by π. 1, characterized in that the angle of inclination of the V-shaped struts to the uproot direction in the plane of the furrow walls is 50 °, and the angle of inclination of the frontal plane of the cutting edges to the uproot direction is 40 °. 4. The uproot by π. 1, characterized in that the longitudinal horizontal beams of the frame are deployed respectively to the left and to the right of the uproot direction by a cutting angle of 19-25 °. .1144656 Riga 1