Reversible Plough Frame Mounting for Clogging Reduction

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Solution Overview

Problem

Reversible plows face issues with clogging and screw shear-off due to attachment designs that obstruct the plow frame's working area and concentrate force on screw connections.

Innovation Solution

The plow body mounts are attached only to the side walls of a conventional square plow frame, using form-fitting elements and additional fasteners to secure the plow body holder, reducing contact with the frame's upper and lower areas and distributing forces, thus preventing clogging and alleviating shear stress on screws.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If plow body holders are attached to the top and bottom of the plow frame using clamping plates and screws, then the attachment security is improved, but the risk of clogging and contamination increases due to obstructed space above and below the plow frame

Engineering Contradiction:
Improveattachment securityVSAvoidclogging and contamination risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The plow body holder is repositioned from vertical attachment (top and bottom of the frame) to lateral attachment (side walls only). This dimensional change in attachment location eliminates obstruction of the upper and lower spaces, preventing clogging and contamination while maintaining secure attachment through lateral mounting points

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If plow body brackets are attached to the cross member of the T-shaped plow frame using bolted connection, then the attachment security is improved, but the shear forces on the bolts increase significantly leading to bolt failure

Engineering Contradiction:
Improveattachment securityVSAvoidbolt shear strength
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The attachment is extracted from the cross member location to the side walls of the plow frame. This relocation removes the source of strong shear forces on the bolts by changing the force transmission path, allowing the connection to withstand impact loads without bolt shearing

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The attachment point is moved from a horizontal plane (cross member) to vertical planes (side walls). This dimensional relocation changes the force distribution and eliminates concentrated shear forces on the fastening elements

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP2892313B1Alternating plough
Publication Date: 2019.06.05 AMAZONEN WERKE H DREYER GMBH & CO KG
  • EP2892313B1 patent drawingFigure 1
  • EP2892313B1 patent drawingFigure 2~3
  • EP2892313B1 patent drawingFigure 4~5

AI summary

The invention relates to a reversible plough (1) comprising a plough frame (2) that can be rotatably and/or pivotally secured to a support attachment in order to connect the reversible plough (1) to an agricultural traction vehicle, and comprising ploughshare rows (4, 5) on opposite sides of the plough frame (2), said rows having ploughing elements. One or other of the ploughshare rows (4, 5) can be moved selectively into the operational position or the non-operational position by a turning motion of the plough frame (2) which is initiated by means of a drive device and the ploughing elements (6) are secured on the plough frame (2) by means of ploughing element mountings (7). In order to reduce the clogging risk for the plough frame, according to the invention the ploughing element mounting (7) for a ploughing element is only secured on one side wall, or only on two side walls of the plough frame (2) with respect to the working position of said element.