SU1069706A1 - Stump puller - Google Patents

Abstract

1. BOOKER, containing a frame connected to the vehicle, support wheels, undercut the working body in the form of racks and a flat horizontal knife arranged at an angle to the horizon, as well as a writhing body in the form of vertical lifting ribs connected to the horizontal knife and rearward, different in that, in order to reduce traction resistance and increase the quality of the upholstery, the stands are arranged at an angle of 35-40 ° & to the horizon, the racks and the horizontal knife have a sharpening angle of 18-21 °, and the horizontal knife is made with undercut on the underside and has a back angle of 3-5 °, while the middle vertical ribs are backward at an angle of 65- 70 °, and lateral - at an angle of 50-55 °. (L O5 with about: Fig. 7

Description

2. The rammer of claim 1, characterized in that the undercut on the underside of the horizontal knife is arcuate.

3.Korchevatel on PP. 1 and 2 are distinguished by the fact that the undercut on the lower side of a horizontal knife is made in the form of two intersecting planes.

4.Korchevatel under item 1, characterized in that the rack, horizontal knife and vertical ribs have removable blades, made with two symmetrically arranged cutting edges.

5. Rooting device on PP. 1 and 4, characterized in that the blades of the middle vertical ribs are made with double-sided sharpening at an angle of 38-45 °, and the extreme edges are made from single-sided racks at an angle of 18-21 °.

The invention relates to forestry industry and can be used in protective afforestation in the uprooting of stumps, shrubs, undergrowth (trees) and pneumatous shoots together with boulders during the reconstruction of protective afforestation. A device for stubbing, visiting the transport and including a frame, cutting the working body in the form of vertical posts with a sharpening of the cutting edge and reinforced in their lower part of the knife in the form of a polygon mounted at an angle to the horizontal plane, as well as writhing the working body in the form of inclined lifting ribs of different lengths placed in the back of the knife 1. The main drawback of the device is its large traction resistance. Also known is a grubber that contains a frame connected to the vehicle, support wheels, undercut the working body in the form of uprights and a flat horizontal blade angled to the horizon, and also a writhing body in the form of vertical lifting ribs 2 which are connected to the horizontal knife and slanted back. Despite the fact that a flat knife is used in the design of the uplifter in the undercutting working body, which reduces the frontal resistance of the undercutting working body, however, the placement of inclined lifting edges is passive Korch second part body immediately behind the cutting edge of the knife has meant that large stumps and roots of the shrub are cut off only by the amount of the blade edge. A partially trimmed stump hangs over the pruning body and is pulled out along with the roots. As the spreader further moves, the spreader is completely recessed. Another serious disadvantage of the upraiser was the low location of its frame, which led to clogging of plant and forest residues between the frame and the tractor. The purpose of the invention is to reduce traction resistance and increase the quality of clearing. The goal is achieved by the fact that the racks are located at an angle of 35-40 ° to the horizon, the racks and the horizontal knife have a sharpening angle of 18-21 °, and the horizontal knife is made with an undercut on the lower side and has a back angle of 3-5 °, while middle vertical ribs are scooped back at an angle of 65-70 °, and lateral edges at an angle of 50-55 °. The undercut on the underside of the horizontal knife is arcuate. The undercut on the lower side of the horizontal knife is made in the form of two intersecting planes. Racks, horizontal knife and vertical ribs have removable blades, made with two symmetrically located cutting edges. Moreover, the blades of the middle vertical ribs are made with double-sided sharpening at an angle of 38-45 °, and the outer edges are made with single-sided racks at the angle of 18-21 °. FIG. 1 shows a rooting lifter, side view; in fig. 2 - the same, front view; in fig. 3 - the same, top view; in fig. 4 shows section A-A in FIG. 3; in fig. 5 is the same as an embodiment of a base sheet from a sheet of metal in the form of two inclined mating planes; in fig. 6 is a section BB in FIG. one; in fig. 7 is a section bb of FIG. one; in fig. 8 — node I in FIG. 6. The lifter contains a vertical U-shaped monolithic hollow frame 1 s.

combined brackets 2-4 for coupling with tractors.

On the outer lateral vertical beams of the U-shaped frame 1 there are mounted onion wheels 5, and on the inner ones - inclined posts 6 with a horizontal knife 7, with removable blades 8, made with two symmetrically arranged cutting edges.

The writher 9 is made in the form of inclined lifting ribs 10 and 11 placed on the back of the knife 7.

On the inclined racks 6 and the knife 7 of the undercutting working body with the help of bolts 12 with a countersunk head in the grooves 13 fixed removable blades 8.

Removable blades 8 are made in such a way that they allow the wear of cuts, it has edges of 20 mm on each side. Removable blades are made with a sharpening angle of 18-21 °. Removable blades 8 on the knife 7 are installed in a specially milled groove. The stops 14 exclude the shearing of the bolts 12 during operation of the lifter.

The execution of the knife 7 with the undercut in the form of a circular arc eliminates sticking of soil on it. However, for ease of manufacture, it is permissible to make the blade 7 of sheet metal with a groove cut on the back side by means of a modular milling cutter. Next, the knife 7 is bent at the slot and welded (in Fig. 5, the welding area is mating, the planes are blackened), this ensures the necessary geometry of the knife 7 and its rigidity. When placed on the blade 7 of the blades 8, the following blade geometry is provided: the optimum cutting angle is 21 °, the back angle is 3-5 °, the grinding angle is 18-21 °. The maximum lifting height of the soil layer together with the stump being cut from the bottom of the groove on the knife 7 is only 51 mm. This ensures minimal drag of the trimming tool.

A writher 9, made in the form of inclined lifting ribs 10, is placed on the back of the curved surface of the knife 7, which facilitates a smooth transition of the clipped mon to the writher 9 and eliminates the overhang of sheared roots or lobe mon on the undercut working organ.

The rib 10 of the gripping body 9, as compared with the ribs 11, is deflected at a smaller angle with respect to the horizon. The middle ribs 10 are sloped back at an angle of 65-70 °, and the outer edges. 11 - at an angle of 50-55 °. This allows the stumps to be oriented along the row axis and placed on the floor surface.

On edges 10 and 11, removable blades 15 and 16 are fixed with a single-sided stitch at an angle of 18-21 ° and blade 17 with double-sided sharpening at an angle of 38-45 °, fixed to them with the help of bolts 12 and a pin of a screwdriver 18. Placement of removable blades 15- 17 on the ribs 10 and 11, the additional layer of earth can be cut into shares and the stump removed to the surface.

The posts 6 of the undercutter are attached to the frame 1 of the lifter with the help of two pairs of bolts (not shown). The angle of the pillars 6 to the horizon is 35-40 °. Removable blades 8 are placed on the uprights 6. This eliminates the clogging of the space between the frame 1, the wheels 5 and the uprights 6 with forest debris by cutting them into pieces. This is due to the fact that the branches and plant residues slide along the blade 8 downwards and then wedge between the soil and the uprights 6. When the upraiser moves due to the unevenness of the soil, they press into it, cut and remain in the soil.

The proposed lifter works as follows.

A saddle assembly using the sedan method enters a site with a number of stumps that need to be uprooted. The tractor’s hydraulic system lowers the floor lifter to the surface, not reaching the first mon one or two meters, and when the machine moves, the soil lifter deepens to the depth of uprooting limited by the support wheels 5. When the blade unit moves, 8 inclined racks of the undercut 6 of the working body cut off the side roots of the mon in the soil. Further, the blades 8 of the knife 7 are cut with vertical roots.

A fully trimmed stump enters the writher 9, with the trimmed side roots first resting on the side ribs 11 and sliding along them, rising up. At the same time, under the pressure of the incoming layer of soil on the writher 9, the soil monolith is deformed, crushed and separated down. The stump is supported by the central roots on the middle lifting ribs 10, and the lateral roots are supported by the fins 11 and are ejected from the ground in a vertical position. The soil monolith, along with the roots, is further cut into thinner soil layers with removable blades 15-17 ribs 10 and 11. At the same time, thick mon roots slide along them and the layer of deformed soil spills down under the ribs 10 and 11, which provides additional cleaning mon from the soil.

The combination of the U-shaped vertical frame and the suspension of the upholster provides for uplifting of stumps up to 1.5 m high, shrubs, undergrowth, and young growth up to 4.5–5 m. This also eliminates clogging up with forest residues and wrung-down moles of the upravel.

The stubbed up stumps have a lowercase orientation of the stumps along the rowed row, and

the degree of their extraction to the surface of the floor is 75-97%. This allows the stumps to be harvested by the famous skidder PTU-1, mounted on a tractor with an MTZ-80 wheeled tractor.

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Claims (5)

1. TIGER, containing a frame connected to the vehicle, support wheels, cutting the working body in the form of racks located at an angle to the horizontal and a flat horizontal knife, as well as a writhing body in the form of vertical lifting ribs connected to a horizontal knife and beveled back, characterized in that, in order to reduce traction resistance and improve the quality of uprooting, the racks are located at an angle of 35-40 ° to the horizontal, and the racks and horizontal knife have a sharpening angle of 18-21 °, and the horizontal knife is made with undercut on the lower side and has a rear angle of 3-5 °, while the middle vertical ribs are beveled backward at an angle of 65–70 °, and the lateral ones are at an angle of 50–55 °. FIG. 7 SU „, .1069706 2. The eradicator by π. 1, characterized in that the undercut on the lower side of the horizontal knife is made arcuate. 3. The uproot according to paragraphs. 1 and 2, characterized in that the undercut on the lower side of the horizontal knife is made in the form of two intersecting planes. 4. The uproot by π. 1, characterized in that the posts, horizontal knife and vertical ribs have removable blades made with two symmetrically located cutting edges. 5. The uproot according to paragraphs. 1 and 4, characterized in that the blades of the middle vertical ribs are made with bilateral sharpening at an angle of 38–45 °, and the extreme edges with one-sided racks at an angle of 18–21 °.