SU1794329A1 - Blade cultivator operating tool - Google Patents

Description

The invention relates to agricultural machinery, in particular to implements for subsurface tillage.

The purpose of the invention is to reduce the energy intensity of soil cultivation.

In FIG. 1 shows the working body, a top view, and the arrows indicate the movement of the soil layer along it; in FIG. 2 - section of the working body in the transverse vertical plane; in FIG. 3 is a view A of FIG. 2; in FIG. 4 - technological process of the working body, side view: in FIG. 5 is a flow chart of the operation of a spherical gear disk.

The working body of the cultivator-plane cutter contains a stand 1, a paw 2. fixed on it. Where is the cutting edge 3 of each wing covering flaps. The cutting edge 3 of each wing has a contour in the form of smoothly conjugated segments of a logarithmic spiral and is made gear. The leading edge 4 of each tooth 5 is in the form of a logarithmic spiral convex towards the direction of movement and is placed overlapping in the transverse direction of the leading edge of the tooth in front. Each flap is equipped with a gear spherical disk 7, mounted with the ability to change its position in height. The rear edge 6 of each tooth 5 of the cutting edge of the paw 2 is made rectilinear and is perpendicular to the longitudinal axis of the paw 2. 3

C.p. f-ly, 5 ill.

made of gear, and the front edge 4 of each tooth 5 has the form of a logarithmic spiral convex towards the direction of movement and is placed overlapping in the transverse direction of the front edge of the front tooth, and the rear edge 6 of each tooth 5 of the cutting edge 3 paws 2 is made 'rectilinear and perpendi-located; Pularly along the longitudinal axis of the paw. In addition, each flap is equipped with a gear spherical disk 7, the latter is installed with the possibility of changing its position in height.

In addition, the flaps 8 of the legs 2 are equipped with guide grooves 9 for adjusting the position of the disks 7 in height and

SU, „> 1794329A1 have a shape corresponding to the shape of disks 7..

The device operates as follows.

When the working body of the cultivator moves along the treated area of the paw 2, it cuts the soil layer with a cutting part 4 of teeth 5, made in a logarithmic spiral, convex in the direction of movement. In this case, cutting of soil and weeds occurs at an angle of slip. Under the influence of teeth 5. deformation zones which are closed, the bonds of the soil in the interdental space are broken. Next, the soil formation enters the surface of the legs and discs 7 (Fig. 1), and the latter separate the formation from the monolith. capture it and involve a spherical disk into a rotational motion. Subsequently, the formation moves relative to the surface of the disk and the soil is discarded along a certain path. In this case, the disks direct the soil behind the rack 1 with rotation, thereby blocking the track of the rack and increasing the loosening zone (Fig. 4, 5).

In particular, the rotation of the disk facilitates the processing of stony soils and soils clogged with rhizomes, and the separation of the formation from the bottom of the furrow during shear and separation prevents the formation of a compacted bottom of the furrow.

Claims (4)

Claim 1. The working body of the cultivator-plane cutter, containing a paw fixed to the rack, having wings with flaps bent upward, and the cutting edge of each wing has a contour in the form of smoothly conjugated segments of a logarithmic spiral, characterized in that. In order to reduce the energy consumption of soil cultivation, the cutting edge of each wing is serrated, and the front edge of each tooth has the shape of a logarithmic spiral convex towards the direction of movement and is overlapped in the transverse direction, which favorably affects the physical properties of the treated field. In addition, the movement of the soil layer (after separation from the disk) along a steep parabola intensifies the process of crumbling, eliminates the formation of long tape formations during the processing of moist soil. Also, for a disk working body, a change in the position of the axis of its rotation in space and regulation in accordance with the quality indicators of its work when changing the properties of the soil are allowed (Fig. 3). By reducing the friction of the soil layer on the untreated soil and replacing it with the friction of rolling the discs, the traction resistance decreases and the degree of crumbling of the discarded particles increases. The implementation of the cutting edge 3 of each wing of the toothed paw, as well as the front cutting edge 4 of each tooth 5 in the form of segments of a logarithmic spiral, helps reduce soil rejection and provide sliding cutting and soil deformation with the least resistance. Using the invention allows to improve the quality of soil cultivation, reduce the energy intensity of the process of cultivation without transferring significant dynamic loads to the base machine. the front edge of the tooth in front. 2. Working body pop. ^ characterized in that each flap is equipped with a gear spherical disk. 3. The working body according to claim 2, with the fact that each gear spherical disk is installed with the possibility of changing its position in height. 4. The working body according to claim 1, with the fact that the rear edge of each tooth of the cutting edge of the paw is made rectilinear and is located perpendicular to the longitudinal axis of the paw. λ \ Type A Figure 4