RU221089U1 - WORKING BODY OF THE CULTIVATOR - Google Patents

Abstract

The utility model relates to agricultural engineering, in particular to devices that prevent clogging of the racks of soil-cultivating working tools with plant residues. The technical result of the utility model is to reduce the energy intensity of the work. The technical result is achieved due to the fact that the arcuate rod is made of elastic steel, the wedge angle of the arcuate rod is 45°, a flat knife of the same height in any cross section with a blade sharpening angle of 40° is welded to the front surface of the tillage paw along the longitudinal axis of symmetry, and the end of the arcuate rod is put on the knife until it stops in the paw with its groove made along the axis of symmetry, the width is equal to the thickness of the knife and the depth is 0.2 cm greater than the height of the knife. The working body of the cultivator, including a tillage paw, a stand and an arcuate rod having a wedge-shaped cross-section in front of it, the upper end of which is fixed to the stand, and the arcuate rod is made of elastic steel, the wedge angle of the arcuate rod is 45°, a flat knife of the same height in any cross section with a blade sharpening angle of 40 is welded to the front surface of the tillage paw along the longitudinal axis of symmetry °, and the end of the arc-shaped rod is put on the knife until it stops in the paw with its groove made along the axis of symmetry, the width is equal to the thickness of the knife and the depth is 0.2 centimeters greater than the height of the knife.

Description

The utility model relates to agricultural engineering, in particular to devices that prevent clogging of the racks of soil-cultivating working tools with plant residues.

The working body of a tillage implement is known (author's certificate SU No. 1367877, IPC class A01B 35/26, 1988), containing a working element fixed to a stand and a rod fixed to it, directed in the direction opposite to the movement of the implement, and made bent in the transverse direction under an acute angle to the direction of movement of the gun, with the upper end directed in the direction opposite to the movement of the gun, and made bent in the transverse direction at an acute angle to the direction of movement of the gun, and the lower end, fixed in front of the working element in the upper part of its leading edge, directed towards the side opposite to the direction of movement of the gun, and made bent down at an acute angle to the horizontal.

The disadvantage of this working body is the ineffective prevention of enveloping the stand with plant debris and roots of weeds.

The closest analogue to the claimed one is the working body of the cultivator (author's certificate SU No. 1824034, IPC class A01B 35/26, 1993), including a tillage paw, a stand and an arcuate rod having a wedge-shaped cross-section in front of it, the upper end of which is fixed to the stand above the soil level , and the lower one is passed under the paw in front.

The disadvantage of this design is the high energy intensity of operation. Part of the arc-shaped rod, passed under the soil-cultivating paw, moves in dense soil that is not loosened by the paw, pressing plant residues and plant roots into it, which significantly increases the energy intensity of the work. In addition, energy consumption increases as a result of the resistance of sliding friction forces to the movement of a part of the arcuate rod passed under the tillage paw in unloosened soil and as a result of the formation of a groove by the rod.

The technical result of the utility model is to reduce the energy intensity of the work.

The technical result is achieved due to the fact that the arcuate rod 4 is made of elastic steel, the wedge angle of the arcuate rod is 45°, a flat knife of the same height in any cross section with a blade sharpening angle of 40° is welded to the front surface of the tillage paw along the longitudinal axis of symmetry, and the end of the arcuate rod is put on the knife until it stops in the paw with its groove made along the axis of symmetry, the width is equal to the thickness of the knife and the depth is 0.2 centimeters greater than the height of the knife.

This set of essential features ensures that the proposed working body of the cultivator has new properties that differ from the prototype.

Thus, the declared features of the utility model meet the “novelty” criterion.

In fig. Figure 1 shows a diagram of the working body of the cultivator, side view when interacting with the soil;

in fig. 2 - view A in Fig. 1;

in fig. 3 - section B-B in Fig. 1.

The working body of the cultivator, including a soil-cultivating paw 1 (Fig. 1), a stand 9 and an arc-shaped rod 4 having a wedge-shaped cross-section in front of it, the upper end of which is fixed to the stand, and the wedge angle of the arc-shaped rod is 45°, on the front surface of the soil-cultivating paw along the longitudinal the axis of symmetry is welded to a flat knife 11 of the same height in any cross section with a blade sharpening angle of 40° (Fig. 2), with a handle of rectangular cross-section 10 at the end at the stand, and the end of the arcuate rod 4 is put on the knife 11 until it stops in the paw 1 with its groove , made along the axis of symmetry, equal in width to the thickness of knife 11 and in depth greater than the height of knife 11 by 0.2 cm.

The working body of the cultivator works as follows.

Before work, the rack 9 is attached to the beam 6 of the cultivator frame using bracket 5, the arcuate rod 4 on the groove 13 on the knife 11, move the bracket 7 with the arcuate rod 4 to such a position that the gap between the knife 11 and the bottom of the groove 13 is 0.2 cm (Fig. 2), and secured with bolt 8 (Fig. 1).

During operation, the lower end of the arcuate rod 4 and the tillage paw 1 with the knife 11 move in the soil at a given depth. The tillage paw loosens the soil layer in front of it into large lumpy fragments due to the propagation of cracks 2 (Fig. 1) and weakens the connection of the roots 3 of plants with the soil, and with its wings loosens the soil into smaller fragments behind, in zone 12.

Rod 4, with a wedge opening angle in cross-section of 45° (Fig. 3), cuts the loosened layer of soil, captures plant residues and roots of 3 plants and moves them to knife 11. The wedge opening in cross-section of rod 4 at 45° prevents the formation of a compacted soil core and provides (according to N.I. Klenin, V.A. Sakun. Agricultural and land reclamation machines - M.: Kolos, 1994. - P. 40.), reducing the energy intensity of work.

The elastic force, which increases as the rod 4 deforms, presses the crop residues and roots to the knife. The pressure force of the incoming layer moves the pressed mass along the knife towards the post until it is completely cut. The cut mass goes down the wings of the paw without enveloping the stand. The sharpening angle of the knife blade at 40° allows you to reduce the energy consumption of cutting. Moving the mass along the knife during the cutting process also reduces energy consumption. The gap between the knife blade and the bottom of the groove prevents their friction when the rod 4 is deflected.

Thus, the stated technical result is achieved.

Information sources:

1. Copyright certificate SU No. 1367877, IPC class. A01B 35/26, 1988.

2. Copyright certificate SU No. 1824034, IPC class. A01B 35/26, 1993.

3. Klenin N.I., Sakun V.A. Agricultural and reclamation machines - M.: Kolos, 1994. - P. 40.

Claims (1)

A working body of a cultivator, including a tillage paw, a stand and having a wedge-shaped section of an arcuate rod in front of it, the upper end of which is fixed to the stand, characterized in that the arcuate rod is made of elastic steel, the wedge angle of the arcuate rod is 45°, on the front surface of the tillage paw a flat knife of the same height in any cross section is welded along the longitudinal axis of symmetry with a blade sharpening angle of 40°, and the end of the arcuate rod is put on the knife until it stops in the paw with its groove made along the axis of symmetry, the width is equal to the thickness of the knife and the depth is greater than the height of the knife by 0.2 cm.