NL1007133C2 - Automatic mechanical ploughing-width adjustment - comprises linkage with drag-foot and rear disc-coulter - Google Patents

Abstract

The linkage, foot and coulter are all mounted on the plough itself. The foot, which works in the first furrow, is coupled by the linkage to the rear disc coulter. Any deflection of the foot caused by arrival in heavier ground is transmitted to the coulter, which corrects matters.

Description

Automatic mechanical width control for plowing

Description 5 The invention, to which a patent is pending, relates to the automatic width control during plowing. The system is characterized by the fact that the plow automatically makes a straight front, without the driver having to do anything.

Without automatic steering it is not so easy to plow a straight front, as the 10 driver must always remain alert to the imperfections that occur in the ground. In practice, situations often occur in which the play of forces on the team varies greatly. The main cause of a change in the working width of the plow is the change in the force exerted by the ground on the body. When this force increases, the force exerted by the soleplates on the front side increases. As a result, the soil will be compressed more by the sole plates 15, the plow swings to the unplowed side.

In practice, this swing-out is limited to a few centimeters at most. However, when this phenomenon always occurs in the same place on the plot, a clear curve arises after a number of passes. On variegated fields, with alternating light and heavy, difficult-to-turn soil and at the transition from wheat and beet land, for example, the tractor driver will have to take corrective action 20 to keep the furrow straight.

The idea of Automatic Mechanical Width Control (AMB) was developed in response to the article of tillage of 11 November 1996 in the trade magazine agricultural mechanization, which discussed highly advanced and expensive (electric-hydraulic) measuring and control systems 25 plow a straight furrow.

I thought: "This should be possible with a simpler and cheaper system." So I developed a system and built a prototype, where the plow is equipped with Automatic Mechanical Width control.

The working width of the plow on which the system is mounted (prototype) is a 4-furrow with a working width of 1600 to 1700 mm. If the plow is set to a working width of 1650 mm, the plow will also maintain this working width regardless of the condition of the ground.

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Operation of the A.M.B. system

The operation of the A.M.B. system has been clarified with the help of two drawings on pages 5 and 6, where a top and side view of a plow with Automatic Mechanical Width-5 control is drawn.

The A.M.B. system consists of only a few parts, namely: a drag foot and a rod mechanism that connects the drag foot and the rear disc coulter.

By running the trailing foot in the front and connecting it to the rear 10 disc coulter with a rod mechanism, you get an automatic width adjustment.

If one plows in an area with heavier soil, the team will divert to the unplowed. The first plow body will also go slightly wider, this will cause the trailing foot to swing out to the plowed and through a rod mechanism the rear disc coulter will cut narrower, so that the working width of the plow is maintained and the front remains straight.

15 If one plows in an area with lighter soil, the plow will move to the plowed area. The first plow body will therefore also be slightly narrower, this will cause the trailing foot to swing out to the unplowed and through a rod mechanism the rear disc coulter will cut wider

The working width that the rear disc coulter can correct at a time is only 2 to 3 cm, 20 but sufficient to keep a straight furrow. This automatic mechanical width control therefore maintains the selected width setting regardless of the condition of the ground.

The system is designed for plowing without the so-called hydraulic width adjustment. With plows with hydraulic width adjustment, the set width is not automatically retained on uneven ground. To achieve this, the driver will have to take corrective action.

The A.M.B. system can be mounted practically on any plow, as the linkage mechanism, the trailing foot and the rear disc coulter can be adapted to the plow.

With the A.M.B. measurement and control system has thus obtained a simple and inexpensive alternative to plow a straight, instead of expensive hydraulic or electronic measurement and control systems.

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Claims (1)

5. Adjusting the tractor; * Adjusting the cutting width of the first plow body by means of transverse adjustment. * Adjusting the cutting width of the first plow body by means of an angle adjustment. * Simultaneous adjustment of the cutting width of all plow bodies when plowing with a central cutting width adjustment. The driver must take corrective action in all of the above ways to correct a curve. 15 Conclusion 1: The new invention, the A.M.B. system. is characterized by the fact that a change in cutting width, due to a different condition of the ground, is automatically corrected. The driver no longer has to take corrective action with this system, this is done fully automatically. 20 Conclusion 2: With the A.M.B. measurement and control system is thus a simple and inexpensive alternative to plow a straight, instead of expensive hydraulic or electronic measurement and control systems. 25 Conclusion 3: The A.M.B. system is absolutely not susceptible to malfunction and requires practically no maintenance. 30 Conclusion 4: The A.M.B. system can be mounted practically on any plow, as the linkage mechanism, the trailing foot and the rear disc coulter can be adapted to the plow. 1007133