RU224713U1 - ROTOR OF SOIL TILLAGE MILL WITH VERTICAL AXIS OF ROTATION - Google Patents

Abstract

The utility model relates to the field of agricultural engineering, in particular to tillage cutters with a vertical (steeply inclined) axis of rotation. The technical result of the utility model is to reduce the energy intensity of work while increasing technical reliability. The technical result is achieved due to the fact that the guide sleeve and guide rod are made of spring steel with a bending force greater than that of the spring connected to the cups. A rotor of a tillage cutter with a vertical axis of rotation, containing a bracket with a threaded hole welded to the lower cup from below, a guide rod welded to the lower cup from above, a guide bushing welded from below to the upper cup, which in turn is bolted to the rotor holder, a vertically located elastic a spring, the upper end of which is bolted to the upper cup, and the lower end is bolted to the lower cup, a working element inserted into the bracket and fixed with a bolt through a threaded hole, while the guide rod rests with its upper end against the compression spring, the force of which is adjusted through the piston by the adjusting a bolt screwed into the rotor holder and the upper cup, wherein the guide sleeve and guide rod are made of spring steel with a bending force greater than that of the spring connected to the cups.

Description

The utility model relates to the field of agricultural engineering, in particular to tillage cutters with a vertical (steeply inclined) axis of rotation.

A known rotor of a tillage cutter with a vertical axis of rotation [Copyright certificate RU patent No. 208672, IPC class. А01В 33/06, 2021], containing a bracket with a threaded hole welded to the lower cup from below, a guide rod welded to the lower cup from above, a guide bushing welded from below to the upper cup, which in turn is bolted to the rotor holder, a vertically located elastic a spring, the upper end of which is bolted to the upper cup, and the lower end is bolted to the lower cup, a working element inserted into the bracket and secured with a bolt through a threaded hole.

The disadvantage of this design is the poor quality of work in various soil conditions.

When processing heavy soil with low humidity, soddy soil or soil with a strong root system of previous crops, in order to ensure better penetration and stable movement of the working body of the cutter in depth, it is necessary to regulate the resistance force to the upward movement of the guide rod inside the guide bushing. The design of the prototype does not provide the possibility of such adjustment.

The closest analogue to the claimed one, chosen as a prototype, is the rotor of a tillage cutter with a vertical axis of rotation [Copyright certificate RU patent No. 210422, IPC class. А01В 33/06, А01В 33/14, 2022], containing a bracket with a threaded hole welded to the lower cup from below, a guide rod welded to the lower cup from above, a guide sleeve welded from below to the upper cup, which in turn is bolted to the holder rotor, a vertically located elastic spring, the upper end of which is bolted to the upper cup, and the lower end is bolted to the lower cup, a working element inserted into the bracket and fixed with a bolt through a threaded hole, and the guide rod rests with its upper end against the compression spring, the force of which Adjustable through the piston with an adjusting bolt screwed into the rotor holder and the upper cup.

The disadvantage of the prototype is that the rigid guide sleeve and guide rod do not allow the working body to self-oscillate in the direction of movement to reduce the energy intensity of tillage and to deviate simultaneously backward and upward when encountering stones to bypass them from above without anchoring.

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

The technical result is achieved due to the fact that the guide sleeve and guide rod are made of spring steel with a bending force greater than that of the spring connected to the cups.

This set of essential features ensures that the inventive rotor of a tillage cutter develops 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 a rotor of a tillage cutter with a vertical axis of rotation, front view;

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

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

The rotor of a tillage cutter with a vertical axis of rotation, containing a bracket 2 with a threaded hole 15, welded to the lower cup 4 from below, a guide rod 13, welded to the lower cup 4 from above, a guide sleeve 14 welded from below to the upper cup 10, which in turn is attached with bolts 8 to the rotor holder 7, a vertically located elastic spring 5, the upper end of which is connected with bolts 6 to the upper cup 10, and the lower end is connected with bolts 3 to the lower cup 4, the working body 1, inserted into the bracket 2 and fixed with a bolt through a threaded hole 15, in this case, the guide rod 13 rests with its upper end against the compression spring 12, the force of which is adjusted through the piston 11 by an adjusting bolt 9 screwed into the rotor holder 7 and the upper cup 10, and the guide sleeve 14 and the guide rod 13 are made of spring steel with a bending force, larger than that of the spring connected to the cups.

The rotor of a tillage cutter with a vertical axis of rotation operates as follows.

When moving in the soil, springs 5 and 12 allow the working body 1 to self-oscillate in the vertical direction along the path of least soil resistance, reducing energy consumption and bypass obstacles from above in the absence of anchoring conditions. At the same time, the spring 5, the guide sleeve 14 and the guide rod 13 allow the working body 1 to perform torsional self-oscillations, reducing energy consumption and bypassing obstacles from the side by rotating the working body around a vertical axis.

The guide sleeve 14 and the guide rod 13, made of spring steel with a bending force greater than that of the spring connected to the cups, allow the working body 1 to perform self-oscillations in the transverse-vertical and longitudinal-vertical planes, which reduces the energy intensity of soil cultivation. When the working body 1 encounters an obstacle in conditions conducive to anchoring, the guide sleeve 14 and the guide rod 13 bend, the working body is deflected simultaneously backward and upward, the anchoring conditions disappear, the working body bypasses the obstacle from above, avoiding breakage, which increases technical reliability.

Thus, the stated technical result is achieved.

Information sources:

1. RU patent No. 208672, IPC class. A01B 06/33, 2021.

2. RU patent No. 210422, IPC class. A01B 33/06, A01B 33/14, 2022.

Claims (1)

The rotor of a tillage cutter with a vertical axis of rotation, containing a bracket with a threaded hole welded to the lower cup from below, a guide rod welded to the lower cup from above, a guide bushing welded from below to the upper cup, which in turn is bolted to the rotor holder, a vertically located elastic a spring, the upper end of which is bolted to the upper cup, and the lower end is bolted to the lower cup, a working element inserted into the bracket and fixed with a bolt through a threaded hole, while the guide rod rests with its upper end against the compression spring, the force of which is adjusted through the piston by the adjusting a bolt screwed into the rotor holder and the upper cup, characterized in that the guide sleeve and guide rod are made of spring steel with a bending force greater than that of the spring connected to the cups.