Moldboard Wear Area Stiffening via Nested Front Section
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Solution Overview
Problem
Mouldboards experience excessive wear at higher plowing speeds, leading to inadequate performance due to insufficient stress resistance, as existing designs struggle to cope with increased wear without requiring significant material or construction changes.
Innovation Solution
A mouldboard design featuring a larger wear area with a convex recess in the rear part and a correspondingly concave front part, where the dividing line follows a semi-elliptical path, allowing the rear part to grip the front part like pincers, thereby stiffening it and enhancing wear resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the mouldboard front part is made replaceable to reduce wear impact, then the replacement ease is improved, but the wear resistance deteriorates due to insufficient stress resistance at higher plowing speeds
Solution Approach 1:
The mouldboard is divided into a rear part and a front part that can be replaced independently. The front part is designed as a separate replaceable component that can be detached and replaced without replacing the entire mouldboard, facilitating easy maintenance while maintaining overall structural integrity
Solution Approach 2:
The front part is inserted into a recess in the rear part, creating a nested structure where the front part fits within the overall mouldboard assembly. This nesting arrangement allows the front part to be replaced independently while maintaining the complete mouldboard functionality
2Reliability
If the mouldboard wear area is increased to withstand higher stresses, then the wear resistance is improved, but the device complexity increases due to additional material and construction requirements
Solution Approach 1:
The front part is specifically designed with enhanced wear resistance properties and is positioned only in the area most susceptible to wear. This localized enhancement provides improved wear resistance where needed without requiring the entire mouldboard to be constructed with additional material or complex features
Solution Approach 2:
Instead of designing the entire mouldboard with excessive material for wear resistance, only the front part that experiences the most wear is designed with enhanced properties. This partial action approach provides sufficient wear resistance for the critical area without the complexity and material cost of enhancing the entire structure
Data Source
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AI summary
The invention relates to a moldboard (1) for plows in solid body or slat design, with a moldboard rear section (2) that includes a moldboard upper edge (4), a moldboard bottom edge (6) and a moldboard front edge (5), with the moldboard bottom edge (6) and moldboard front edge (5) transitioning in a recess (9) into which a substantially congruently formed moldboard front section (3) can be replaceably inserted and which, when installed, forms a continuation of the moldboard front edge (5) and the moldboard bottom edge (6) of the moldboard rear section (2). In order to have created a moldboard that can withstand increased stresses at, for example, increased plowing speeds, it is provided that the length of the maximum orthogonal distance between the apex (S) facing away from the moldboard front edge (5) of the moldboard front section (3) inserted in the recess (9) in relation to the connecting line (14) between the transition (10) of the recess (9) in the moldboard bottom edge (6) and the transition (11) of the recess (9) in the moldboard edge (5) is equal to 40% to 100% of the length of the connecting line (14).