RU220249U1 - 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 axis of rotation. The technical result of the utility model is to reduce energy consumption for soil cultivation. The technical solution is achieved due to the fact that the rotor contains a guide rod and a guide bushing, with an elastic spring located vertically, with its upper end through the upper cup, connected to the gearbox shaft and guide bushing, and with its lower end, through the lower cup, to the rotor flange, with the possibility of simultaneous compression, stretching and twisting of an elastic spring. The tillage cutter works as follows: in the event of an accidental collision of the working body with an obstacle, thanks to a vertically located spring, the working body can not only rise upward, thanks to the compression of the spring, but also rotate around a vertical axis, thanks to the twisting of the spring, which ensures that it goes around the obstacle (stone, slab , roots, stumps, metal objects, etc.) and protects knives from damage. Thanks to the spring fastening of the working element to the rotor flange, oscillatory movement of the knife stands is ensured, leading to a reduction in energy consumption for tillage, improved processing quality and a reduction in the likelihood of damage to the working element.

Description

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

There are known tillage machines with vertical axes of rotation, made in the form of a round pipe, to which a rotor flange is welded, into which the gearbox shaft is inserted and rigidly bolted (utility model patent RU No. 170895, class A01B 33/06, 2017; patent for utility model RU No. 260287, class A01B 39/16, 2017).

The disadvantage of this technical solution is the lack of a movable connection between the gearbox shaft and the rotor axis, which affects increased energy costs when cultivating the soil with a milling cutter.

Another analogue (utility model patent RU No. 179942, class A01B 33/06, 39/16, 2018) to the claimed technical solution is a rotary tillage implement, including a rotor shaft to which a holder is welded, and a gearbox shaft is put on the rotor shaft and rigidly fixed.

The disadvantage of this design is also the absence of an elastic or articulated connection between the gearbox shaft and the rotor shaft, which causes increased energy costs for tillage.

The technical result of the utility model is to reduce energy consumption for soil cultivation.

The technical solution is achieved due to the fact that the rotor contains a guide rod and a guide bushing, with an elastic spring located vertically, with its upper end through the upper cup, connected to the gearbox shaft and guide bushing, and with its lower end, through the lower cup, to the rotor flange, with the possibility of simultaneous compression, stretching and twisting of an elastic spring.

This rotor design allows all working bodies to simultaneously have two additional degrees of freedom due to the vibration created by the spring that connects the flange to the gearbox shaft. Stretching, compressing and twisting the spring makes it possible to reduce energy costs for tillage, as well as act as a safety device for the tillage cutter.

Since the set of distinctive features of the utility model has not been found in other technical solutions, it meets the “novelty” criterion.

The utility model is illustrated in the drawing, where in FIG. Figure 1 shows a general view of attaching the rotor flange to the gearbox shaft.

The rotor of a tillage cutter with a vertical axis of rotation consists of a gear shaft 1, a spring 2, an upper cup 3, a lower cup 4, a rotor flange 10, a guide bushing 5, a guide rod 6. A bolted connection 7 connects the spring 2 with the upper cup 3, which is welded to the gearbox shaft 1, and the guide sleeve 5 is attached to the cup 3. The lower bolted connection 8 connects the flange 10 with the spring 2. The working body 9 is attached to the flange 10 using a bolted connection 11.

The tillage cutter works as follows: if the working body 9 accidentally collides with an obstacle, thanks to a vertically located spring, the working body 9 can not only rise upward, thanks to the compression of the spring 2, but also rotate around a vertical axis, thanks to the twisting of the spring, which ensures that it goes around the obstacle ( stone, slab, roots, stumps, metal objects, etc.) and protects knives from damage.

Thanks to the spring fastening of the working body 9 to the flange of the rotor 10, the oscillatory movement of the knife stands is ensured, leading to a reduction in energy consumption for tillage, improving the quality of tillage and reducing the likelihood of damage to the working body.

Information sources:

1. Patent for utility model RU No. 170895, class. A01B 06/33, 2017.

2. Patent for utility model RU No. 260287, class. A01B 39/16, 2017.

3. Patent for utility model RU No. 179942, class. A01B 33/06, 39/16, 2018.

Claims (1)

The rotor of a tillage cutter with a vertical axis of rotation, containing a guide rod, a guide bushing and an elastic spring located vertically, with the elastic spring, with its upper end through the upper cup, attached to the gearbox shaft and guide bushing, and with its lower end through the lower cup to the rotor flange , which is attached to the working element, while the elastic spring is made with the possibility of simultaneous compression, stretching and twisting.