RU2406284C1 - Combined tillage outfit - Google Patents

Abstract

FIELD: agriculture. ^ SUBSTANCE: outfit comprises a frame with center hoes fixed on it and rollers batteries. The outfit also has rotatory working bodies with subsoil ploughs and its own mechanism for adjusting the depth of work. The rotary working bodies are kinematically connected with rollers through universal joints and a notching speeder. Under the rollers the retaining plates are additionally installed on brackets of adjustable length. ^ EFFECT: improvement of quality of preseeding treatment of soil by retaining-impact fracture of soil clods across the entire width of cut of the unit. ^ 2 dwg

Description

The invention relates to the field of agriculture and can be used in technologies of surface and presowing tillage.

Known combined tillage unit, consisting of a frame with a lock for automatic hitching, the main working bodies with flat-cutting or chisel paws (arms), support wheels, battery cone rollers, spring hitch rollers and side levelers. In the working position of the aggregate paws, moving at a given depth, they cut the soil layer along with the roots of weeds and cultivated plants located in it and loosen it. The rollers following the working bodies, passively rotating with sliding, crumble lumps of soil, comb out weeds and crop residues, compact the soil, leaving behind a smoothed, mulched field surface / Combined soil cultivating mounted AKPN-2.5 (“Leader-2.5” N "). Operation manual OSS 386.00.00.000RE, Krasnoobsk, 2003 /.

The disadvantages of this design is the unsatisfactory crumbling of soil clods due to passive rotation of the rollers, in which they are unable to impact the treated soil layer in a shock way.

Known combined tillage unit, comprising a frame with mounted lancet paws and battery rollers. On the frame there are mounted rotating working bodies with subsoilers and their own mechanism for adjusting the working depth, which are kinematically connected to the rollers by means of cardans and a step-up raising gear (see Patent RU2352091, А01В 49/02, А01В 35/00, published on 04/20/2009, Bull. No. 11).

This unit allows impacting the clods by the shock method due to the active rotation of the rollers, however, the impact of the rollers on compacted or dried soil formations leads to a simple pressing of the clods into the soil layer without crumbling.

The technical task is to improve the quality of pre-sowing and surface tillage due to the additional installation on the tillage unit by means of brackets of adjustable length of retaining plates that prevent the indentation of soil clods when the rollers act on the treated layer.

For this, the tillage aggregate is additionally equipped with retaining plates under the rollers, which prevent the indentation of undamaged clods from being pressed in, thereby supporting and impact crumbling of soil clods over the entire working width in the area between the lower edges of the actively rotating rollers and retaining plates installed under the rollers.

Figure 1 schematically shows a combined tillage unit (side view).

Figure 2 schematically shows a combined tillage unit (top view).

On the frame 1, through the racks 2, lancet legs 3 are fixed, after the first row of which are mounted on the rack with an individual device for adjusting the working depth 4, additional rotating working bodies 5, equipped with subsoilers 6 and kinematically connected by means of cardans 7 and a raising gear 8 with rollers 9. Moreover, the gearbox rigidly mounted on the frame of the unit, and the rollers - through rods 10. Under the rollers using adjustable length brackets 11 fixed retaining plate 12.

The unit operates as follows.

Before the immediate start of work, the required working depth and gear ratio are established in the gearbox 8. Next, the required clearance is set between the working surface of the roller 9 and the retaining plate 12 using brackets 11. The gap determines the conditions of crumbling of soil clods and is set based on the state of the processed layer, first of all , depending on clumpiness. In the process of operation, the paws loosen the surface layer of the soil, and the rotating working bodies 5 passively processing the traces of the driving propellers with 6 subsoilers, transmit the rotation through the cardans 7 and the gearbox 8 to the rollers 9. The gearbox 8 increases the speed, as a result of which the rollers 9 rotate at a higher peripheral speed relative to the translational speed of the unit. The working surface of the skating rink makes a blow to the soil lumps, thereby more intensively affects the cultivated soil layer. The retaining plate 12 prevents the soil clods from being pressed into the treated layer when the rollers run over. The upper soil layer falls under the impact of rollers 9, which destroy soil clods, crushing them on retaining plates 12.

The required processing quality is achieved by changing the gear ratio. If there is insufficient crumbling of the soil clods, a large rotation speed of the rollers is established and the gap between the lower edges of the rollers and the retaining plates is reduced by reducing the length of the arms 11.

Claims (1)

Combined soil cultivating unit including a frame with lancet paws fixed on it and roller rollers, rotating working bodies with subsoilers and its own depth adjustment mechanism, which are kinematically connected to the rollers via cardans and a step-up step gear, characterized in that retaining plates are additionally installed under the rollers on brackets of adjustable length.

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