LT4685B - A compound machine for cultivating of a soil - Google Patents

Abstract

A complex soil cultivation apparatus belongs to the agriculture industry and can be used for soil cultivation after tillage. This apparatus is made of a precisely positioned primary cultivation devise with the passive working parts, lump crusher and the rolling equipment with passive and active parts working in rotation. The apparatus is able to crush lumps in the active mode after changes in the soil structure. A lump crushing construction and its gear ensures it. The lump crusher is in the shape of a horizontal gear, bar roller is made of bars, and while it is rolling it performs passive lump crushing.The active lump crushing is performed by the discs, which are immovably attached to the bars of the roller, in a radial external direction; when switching the rollers gear, ensuring not only necessary rotation of the lump crusher, but also roller bars exit from the soil (the roller crushes with the disc).<IMAGE>

Description

BACKGROUND OF THE INVENTION The invention relates to agricultural machinery for cultivating soil after plowing in heavy, variable mechanical composition soils.

This is done efficiently by compound machines made up of several types of implements. Various variants of this type of machine are known, which differ in the activity of working parts, and the latter is not always desirable as it often impairs the properties of light soils and increases erosion.

The compound tillage machine described in EP 0 471 156 consists of passive working parts for primary soil loosening, an active rotary shredder and a roller. This machine performs well in homogeneous soils and is not very effective in soil with variable structure.

The disadvantage is that in lighter soils, an active clod crusher overcuts clumps and wastes energy.

This machine is not lacking in the machine described in BE patent 714 837, which consists of a harrow 20 and a disk compactor having a working depth adjustment mechanism.

This machine uses extra passes when working on heavier soil to achieve the desired result. It also requires additional energy costs.

The object of the invention is to produce high quality soil with variable mechanical composition with optimum energy consumption.

This object is achieved by a machine according to the general part of claim 1, in that the slurry crusher has passive and active working parts with an operating mode converter depending on the mechanical composition of the soil.

This multi-purpose tillage machine makes it possible to change the working parts of the clod crusher and its activity when the mechanical composition of the soil changes, thus improving the clogging of clods, or avoiding excessive crushing, using energy efficiently.

BRIEF DESCRIPTION OF THE DRAWINGS The invention is further explained in the drawing, which schematically depicts a lateral compound tillage machine.

The machine consists of a series-mounted single-frame harrow, a primary tillage implement with passive working parts 2, a variable-action slurry shredder 3 with an operating mode converter 4 and a soil compactor 5.

The shredder crusher 3 is mounted on a horizontal frame by a lever mechanism 6 on a machine frame 1, and on the roller rods 7 in a radially outward direction are fixed chess plates 8 in chess.

The crusher 3 is encapsulated by a grating cover 9. The mode converter 4 of the crusher 3 comprises a chain drive 10 with a drive chain tensioning mechanism 11. This tensioning mechanism 11 consists of a twin-arm lever 12 with a spring counterweight 13 and pulleys 25. the outer 14 (relative to the chain) and the inner 15. The twin lever 12 has one shoulder length _> 2h-πά ~ 2 where: 1 is the lever's single shoulder length;

h - thickness of the working layer in the active mode of the crusher crusher;

d is the diameter of the tensioner pulley; π - 3.14 constant.

The machine is used in soils with variable mechanical composition. When working on lighter, better soil, the machine sequentially shreds it with passive working parts of the harrow 2, and the slurry crusher 3, of the aforementioned design, rolls in contact with the soil surface by crushing rods 7 and plates 8 which contact (6-7)% area.

When the machine is moving, the working parts of the machine remain the same when the soil is seized, but the activity and working parts of the ram crusher 3 are changed.

This is done by actuating the gear 4 of the chain 10, which, by means of the clamping of the drive chain branch, lifts the roller 3 by removing its forming rods 7 from contact with the ground, forcing the roller 3 and entering the plates 8 into active crushing mode.

The clumps are actively cut by the plates 8, and the raised ones hit the grate shell 9 and are crushed further.

The cultivated surface of the soil is covered by a machine 5.

This combination tillage machine reduces energy and labor costs in changing soil conditions, avoids excessive crushing or additional travel on heavier soil.

Claims (5)

DEFINITION OF INVENTION 1. A compound tillage machine consists of a series of pre-arranged implements, a slurry crusher, its depth adjustment mechanism, a soil roller, characterized in that the soil tillage crusher has passive and active parts with an operating mode changer depending on the soil structure. Compound tillage machine according to Claim 1, characterized in that the slurry shredder is in the form of a grid roller with a horizontal axis, fixed by means of a lever mechanism to the frame of the machine, and on the roller rods radially outwardly fixed chopping plates. 3. A compound tillage machine according to claims 1 and 2, characterized in that the crusher exterior is enclosed by a grating enclosure. 4. A compound tillage machine according to claims 1-3, characterized in that the crusher mode converter comprises a chain drive with a tensioning mechanism of the drive chain branch. 5. A compound tillage machine according to claims 1 and 4, characterized in that the tensioning mechanism consists of a two-tensioned lever with tensioning pulleys at the ends, one external to the chain, the other internal, having a spring-weighted end, and the lever with one shoulder length, 2h- πά l> 2 here: 1 - Length of one arm of the lever h - Thickness of the working layer in the active mode of the crusher crusher; d is the diameter of the tensioner pulley; π = 3,14 constant,