RU153179U1 - SOIL PROCESSING MILL WITH TWO-STEP KNIVES KNIVES - Google Patents

Abstract

A tillage mill for tillage, including a skeleton, a casing, a housing, a shaft bearing, knives, characterized in that on the hexagonal shaft evenly, due to the hexagonal bushings, two-stage B-shaped knives fixed from two shaft ends with circlips.

Description

The utility model relates to agricultural machinery, in particular to milling tillage machines. Known rotary tillage machines with L-shaped knives [1].

The disadvantage of this cutter is only a partial achievement of the required quality of soil treatment, depending, for example, on soil moisture or mechanical composition.

Known tillage cutter containing a skeleton and a shaft with mounted disks with T-shaped knives [2].

The disadvantages of these milling cutters are insignificant pushing forces in the system of the machine-tractor unit, which leads to increased slipping of running systems and insufficient loosening of the soil in layers, leveling the surface of the field and the destruction of weeds.

The purpose of the utility model is to improve soil cultivation, increase its physical structure and pushing forces in the system of a machine-tractor unit.

This goal is achieved by the fact that two-stage B-shaped knives and retaining rings secured from the shaft ends are alternately located on the hexagonal shaft, due to the hexagonal bushings, from the inside and outside. Knives interacting with the soil alternately loosen it to the desired physical structure, depending on the shaft rotation frequency. Due to the b-shaped form of the knives, the best soil cultivation effect is achieved. Having a two-stage design of knives, the push action of forces on the tractor increases, which increases the traction and coupling properties of the unit as a whole.

In FIG. 1 shows a tillage cutter - main view, in FIG. 2 is a side view.

The cutter consists of a core 1, a casing 2, a bearing housing 3, a hexagonal shaft 4, at the beginning and at the end of which circlips 5 are mounted, and between them there are evenly arranged hexagonal sleeves 6, on the inside and outside of which are bolted 7, two-stage knives 8 B-shaped.

The principle of operation of the cutter is as follows. A snap ring 5 is installed at the end of the hexagonal shaft 4. On the hexagonal sleeve 6 on the inside, bolts 7 are fastened, two-stage knives 8 are H-shaped, and on the outside the knives are fixed without a sleeve 6. Having collected the required number of knives, depending on the width tillage, fasten with a locking ring 5.

When rotating from a drive (not shown), the hexagonal shaft 4 transmits torque due to the hexagonal bush 6 and the bolts 7, to the two-stage blades 8 in a V-shape. Knives 8, alternately interacting with the soil, loosen it, depending on the frequency of rotation of the shaft, to the desired structure. Due to the B-shaped and two-stage design of the knives, the best effect of soil cultivation and simplicity of the design are achieved.

The use of this device makes it possible to improve the quality of soil cultivation and the reliability of the tillage machine, including reducing the energy consumption of the cutter due to the alternate interaction with the soil.

Information sources:

1. YATSUK E.P. and other rotary tillage machines. - M.: Mechanical Engineering, 1971, p. 97-98, fig. 25.

2. RF patent No. 2157062, A01b 33/16. Tillage mill / Zhirnov A.B .; Kochnev S.V. / - No. 99103286/13. Claim 02/19/1999. Publ., Bull. Number 3.

Claims (1)

A tillage mill for tillage, including a skeleton, a casing, a housing, a shaft bearing, knives, characterized in that on the hexagonal shaft evenly, due to the hexagonal bushings, two-stage B-shaped knives fixed from two shaft ends with retaining rings.

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