SU1380660A1 - Arrangement for trimming stalks of farm crops - Google Patents

Description

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The invention relates to agricultural harvesting machines and is intended for trimming onion leaves in rows and weeds between the fields before digging out the bulbs from the soil.

The purpose of the invention is to increase the completeness of onion pruning with laid leaves.

FIG. 1 shows a trimming device, side view; figure 2 is the same, the view in the plan.

The device for pruning stalks of agricultural crops contains frame 1, active boom lift 2, pruning knife drum 3 with casing 4, copying elements (poloski) 5, drive consisting of gearbox 6 and belt gears 7 and B. Ram has brackets 9 for mounting on the tractor. The active topper is located frontally in the direction of movement of the unit, made in the form of a horizontal shaft 10 with radial elastic grips (strings) 1I, evenly placed along the entire length of the shaft. The knife drum has knives 12 hinged on the shaft 13 and placed in pairs diametrically opposite through 90 with a transverse overlap of cutting edges 14. The lower edges of the drum casing are fitted at the back and sides with elastic aprons 15, and the boom lifter is placed at the front of the knife drum the possibility of touching the cutting edges of the drum knives, the axis of which is parallel to the axis of the tailpiece. The circles of rotation of the cutting edges 14 of the blades 12 and the ends of the grippers 11 of the haulier 2 are aligned along a line in a plane passing through the centers of rotation of the drum 3 and the hawser 2 and located above an acute angle to the horizon with the apex directed along the movement of the device. For adjusting the spacing between the grippers (bars of the lifter and cutting edges

The knives of the drum are fixed to the slots in the slots of 16. The direction of rotation of the shaft of the tops corresponds to the direction of movement of the unit for cutting the onion leaves, and the direction of rotation of the knives of the drum is opposite. The drive of the knife drum and the device lifter is driven from the tractor's power take-off shaft through a gearbox and two belt drives.

The trimming device works as follows.

The active trunk 2 with elastic rods 11 lifts the lodged part of the stalks of the onion leaves in rows and weeds between the rows, levels the unfinished and lifted lodged parts of the stalks, brings them to the trimming zone with the knives 12, the drum 3 and keeps it raised. until the bars 1I touch the cutting edges 14 of the knives 12 and cut the stems.

Upon contact with the heads of the bulbs, the elastic rods 1 1 are bent and, without damaging the bulbs, raise the laid part of the leaves and weeds located at and below the heads of the bulbs. The elastic aprons 15 of the casing 4 contribute to increasing the air flow of the knife drum 3 in the casing, directed upwards and supporting the stalks cut at the root in a raised position until they are repeatedly and completely trimmed with knives 12. Cut the onion leaves knife drum

3 grinds with knives 12, directs them along the cylindrical inner surface of the case with airflow

4 and scatters through the casing deflector across the field or collects in a storage bin (not shown). The remains of onion leaves and weed vegetation, adhering to the cutting edges 14 of knives 12 of drum 3, are knocked off by elastic grippers-rods 11 of a haulier 2 and fall into the total flow of the pulverized mass.

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Claims (2)

1. DEVICE FOR CUTTING STEMS OF AGRICULTURAL CROPS on the vine, mainly onions, containing mounted on the frame with oncoming rotation, a drum with knives located in the casing and a rotary working body frontally located in front of it, characterized in that, in order to increase the completeness trimming onions with dead leaves, the rotary working body is made in the form of a topper with radial elastic grips, and the circumferences of rotation of the cutting edges of the knives and the ends of the grippers of the topper are paired in a line laid in a plane passing through the centers of rotation of the drum and topper, and placed at an acute angle to the horizon with a vertex directed in the direction of travel of the device. 2. The device according to p. ^ Characterized in that elastic aprons are attached to the drum casing at the back and sides.