SU1235475A1 - Stump puller - Google Patents

Description

The invention relates to forestry machines for mechanical engineering, mainly for continuous-action pickers for the distribution of stumps, bushes and trees of the first age period when restructuring protective plantations and can. Used in forestry.

The purpose of the invention is to reduce the effort of ezani when clearing.

FIG. Figure 1 shows a writhing device in the working position, side view; in fig. 2 - the same, top view; in fig. 3 - knot on ig. one; in fig. 4 — node II in FIG. 2. The rotor contains a U-shaped main frame 1 with two longitudinal beams 2 and 3, mounting brackets 4 and 5, support wheels 6 and 7. a horizontal knife 8, 5 placed on the longitudinal beams 2 and 3, as well as a core body 9 made in the form of inclined struts 10, a flat base 11 and lifting ribs 12, mounted on additional beams 13 and 14. Q

The longitudinal beams 2 and 3 of the U-shaped frame end with holes 15 and 16, and brackets 17 are placed in their lower part. Additional beams 13 and 14. are provided with two pairs of cheeks 18. In the lower part of beams 14 and 1-3 there are brackets 25 19 with adjusting bolts 20. Beams 13 and M are equipped with brackets 21, in the holes of which the fingers 23 are mounted for connection with the rods of the hydraulic cylinders 23. The bases of the latter are mounted on the axles 24, which are placed in the brackets 30 of the beams 25 of the beams 2 and 3. The cheeks 18 are provided with equidistant holes 26 from the axis of the hole 27 of a larger diameter. meter into which axis 28 is inserted.

With the help of axles 28 and clamps 29, the longitudinal beams 2 and 3 of the frame are connected in the working and transport positions with additional beams 13 and 14. Beams 2 and 3 together with the writher 9 are transferred from the working position to the transport one by means of hydraulic cylinders 23 when Q is pre-releasing the holes 1 b and 26 from the latch 29. The adjusting bolts 20, by resting their heads in the brackets 17, make the holes 16 and 26 in the working position coincide (Fig. 3). In the transport position, the coincidence of the openings 26 and 16 is achieved by moving the movable stops on the rods of the hydraulic cylinders 23.

Before starting the work, the lifting unit is hung on the tractor 30 with the help of brackets 4 and 5, the lower longitudinal t 31 g and the upper link g 32 of the hinge. T-gami 31 and 32 uproader, after sedan-row stumps by tractor 30, are lowered onto the surface of the writhing row. When the tractor 30 moves, the horizontal blade 8 cuts into the ground with the stump roots. When the lifter moves, the horizontal knife 8 is sunk to a depth of 35-40 cm with stump lifting with a diameter of 30 cm and up to 60 cm, with stump lifting in the range of 30-60 cm. The stroke depth of the horizontal knife 8 is set by the support wheels 6 and 7. With stump removal with a diameter of up to 30 cm, additional beams 3 and 14 on the longitudinal beams are fixed by latches 29 in the working position. The overall dimensions of the horizontal knife 8, the inclined stands 10 and the flat base 1 are the same. The horizontal knife 8 is placed 1200–1300 mm in front of the flat base 11 and is not a multiple of the tree planting step, equal to e. 1.0; 1.5; 2.0; 2.5 and 3.0. M, laid down in all tree-planting machines. When the tractor 30 moves with the lifter, the knife 8 along its own perimeter cuts the layer of soil, the roots and the lobe of the mon. Upon further movement, the knife 8 leaves the zone of mon, and the layer of soil with the stump remains lying in the underwater cavity. Further, the horizontal knife 8 cuts under the next stump and cuts its roots. Only after cutting the second mon (with a minimum landing step of 1 m) the first undercutting stump goes to the writhing organ 9. Since the overall dimensions of the horizontal knife 8 and the writhing organ 9 are the same, the first clipped stump rises from the bottom of the furrow onto a flat base 11, and then the lifting ribs 12 are removed to the day surface.

When stumping in the range of 30-60 cm by hydraulic cylinders 23, the additional beams 13 and 14c are pulled by the pulling body 9. They are moved to the transport position and secured with a clamp 29. The stump roots are cut with a horizontal knife 8, and the stumps with the soil layer remain in the gutter ditch. After trimming all the rows of stumps, the gripping body 9 with the beams 13 and 14 hydraulic cylinders 23 is placed in the working position.

The positive effect of the use of the proposed lifter is achieved by the fact that the productivity of the aggregate with separate clearing is higher than with simultaneous cutting and clearing of stumps.

thirty

FIG. 2

25,

/ A 25 z

fiv4

Editor N. Bobkov Order 2968 /)

VNIIPI USSR State Committee

for inventions and discoveries

113035. Moscow, Zh-35. Raushsk nab. D. 4/5

Branch PPP "Patent; Uzhgorod, st. Projects four

Compiled by T. Kruglova

Tehred I. Veres Corrector A. Ferenc

Circulation 679 Subscription

Claims (2)

1. TINNER, containing a frame connected to the vehicle, support wheels, a cutting tool, a knife and a stand located at an angle to the horizontal, a horizontal knife, and a writhing body in the form of lifting ribs connected to a horizontal knife and beveled back, characterized in that, in order to reduce cutting forces during uprooting, the frame is equipped with additional longitudinal beams that are pivotally mounted on it, are located behind it and are equipped with a drive for lifting it, with racks and a horizontal knife with the writhing body is mounted on additional longitudinal beams. 2. The uprooter according to claim D, characterized in that the lifting drive of the additional longitudinal frames is made hydraulic, and the beams themselves are equipped with clamps for locking them in their raised and lowered positions. a. FIG. 7 (L SI Joint venture