RU2541409C2 - Tillage cutter with b-shaped double-staged blades - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agricultural engineering, in particular to rotary cultivators. The tillage cutter comprises a hexagonal shaft. On the shaft the B-shaped blades are alternately located through the bushings. The bushings with the blades are attached at both ends of the shaft with the locking rings.

EFFECT: improving the quality of treatment and physical structuring of the soil is ensured, as well as pushing forces in the machine-tractor unit.

2 dwg

Description

The invention relates to agricultural machinery, in particular to milling tillage machines.

Known rotary tillage machines with L-shaped knives [1], also a 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 aim of the invention is to improve the tillage, increase its physical structure and the pushing forces in the system of a machine-tractor unit.

This goal is achieved by the fact that on the shaft evenly, due to the bushings, B-shaped knives are alternately arranged, fixed at both ends of the shaft by circlips. 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 mill, a General view, in Fig.2 - the design of the knives.

The mill consists of a skeleton 1, a casing 2, a bearing housing 3, a hexagonal shaft 4, at the beginning and at the end of which circlips 5 are installed, and between them the B-shaped knives 8 are located evenly, located on the bushings 6, bolted 7.

The principle of operation of the cutter is as follows. A retaining ring 5 is installed on the end of the shaft 4. B-shaped knives are attached to the sleeve 6 by 8 bolts 7. Having collected the required number of knives, depending on the width of the soil cultivation, they are attached by the retaining ring 5.

When rotating from a drive (not shown), the hexagonal shaft 4 transmits torque to the B-shaped knives 8. The knives 8, alternately interacting with the soil, loosen it, depending on the shaft speed, to the desired structure. Due to the b-shaped form of the knives, the best soil cultivation effect and simplicity of construction 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 machine 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, including a skeleton, a casing, a housing, a shaft bearing, knives, characterized in that the shaft is hexagonal and B-shaped knives are alternately located on the bushes, fixed with retaining rings on both ends of the shaft.

Images