RU2810595C1 - Rotor of soil tillage mill with vertical axis of rotation - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: rotor of a tillage cutter with a vertical axis of rotation contains a flange on which three knives are mounted relative to the vertical shaft, a rubber cylinder and a belt made of elastic material, reinforced with three stoppers and touching the cylinder at three points, and the working body is mounted on the flange using a cylindrical hinge , allowing the knife rack to rotate relative to the vertical axis at an angle α=30°.

EFFECT: ensures a reduction in energy consumption for tillage, simplicity of design, and a reduction in the metal consumption of the cutter rotor.

1 cl, 2 dwg

Description

The invention relates to agricultural engineering, in particular it can be used for work in gardens and berry plantations, both for surface and main tillage.

A rotary tillage tool is known [USSR author's certificate No. 1676469, class. A01B 33/14, 1991], containing a horizontally located shaft with hinged fastening of knives and a recess with a stop and a spring compression element made in the form of a polygonal ring.

The disadvantage of this technical solution is the complexity of fastening the elastic ring and the fragility of its operation due to repeated alternating fracture loads from the working parts.

The closest analogue [patent for utility model of the Russian Federation No. 206945, class. A01B 33/06, 61/04 2021] to the claimed object is a milling cutter with a vertical axis of rotation for tillage, containing four rubber elastic elements installed vertically, and clamps that do not allow the profile pipe to move upward relative to the holder, the support round plate does not allow movement square profile pipe down.

The disadvantage of the design of such a cutter is the complexity of the design, the use of a large number of rubber cylinders, for example, if two knives are installed on the rotor, then 8 rubber bushings must be used; if there are 4 knives, then 16 rubber bushings are required.

The technical result of the invention is to ensure vibration of the working body rack with two elements of different rigidity, providing additional two degrees of freedom of movement of the working body and, as a result, facilitating the movement of the knife along the path of least resistance, which leads to reduced energy consumption for tillage, simplicity of design, and reduced metal consumption cutter rotor.

The technical result is achieved due to the fact that three knives, a rubber cylinder and a belt made of elastic material are installed on the rotor flange relative to the vertical shaft, reinforced with three stoppers and touching the cylinder at three points, and the working body is fixed on the flange using a cylindrical hinge, allowing rotate the knife stand relative to the vertical axis at an angle α=30°.

This rotor design also further reduces the degree of damage to the working body in the event of an accidental encounter with an obstacle due to the ability to rotate the stand around a vertical axis. Maintenance and repair of the proposed invention is much simpler and cheaper than its analogues.

Thus, it is the totality of the distinctive features of the invention in comparison with the prototype that meets the “significant differences” criterion.

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

The invention is illustrated by drawings, where in Fig. 1 shows the rotor of a tillage cutter, top view; in fig. 2 - also, side view.

The rotor of the tillage cutter contains a vertical shaft 1 and a flange 2, to which knives 3 are attached using a cylindrical hinge 7. A belt 4 is mounted on the flange 2 using three stoppers 5, forming an equilateral triangle. A rubber cylinder 6 is placed on the shaft 1, touching the belt 4 at three points; the guide recess 8 allows, during the operation of the cutter, to rotate the knife stand 3 at an angle α=30° and no more. Stop 9 fixes the rotation of the knife stand.

A milling cutter with a vertical axis of rotation works as follows. The rotor of the cutter is driven into rotation and begins to go deep into the soil to a given depth, and then moves the traction unit straight in a given direction. The working bodies (knives), experiencing a constantly changing load from the soil, rotate at a certain angle (self-align), choosing the path of least resistance, which affects the reduction of energy consumption for soil cultivation. If you accidentally encounter an obstacle, the working body rack rotates, which reduces the likelihood of its breakage.

Information sources:

1. Copyright certificate of the USSR No. 1676469, class. A01B 33/14, 1991.

2. RF utility model patent No. 206945, class. A01B 33/06, 61/04 2021.

Claims (1)

The rotor of a tillage cutter with a vertical axis of rotation, characterized in that three knives, a rubber cylinder and a belt made of elastic material are installed on the rotor flange relative to the vertical shaft, secured with three stoppers and touching the cylinder at three points, and the working body is fixed on the flange with a cylindrical hinge that allows the knife rack to rotate relative to the vertical axis at an angle α=30°.