Symmetrical Plough Point for Reversible Soil-Working Implements
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Solution Overview
Problem
Prior-art plough points fail to provide sufficient soil penetration, especially in hard and compact soils, due to wear that affects their thickness and orientation, leading to decreased penetration capacity and the need for separate left- and right-hand plough points.
Innovation Solution
A plough point with a pointed front portion that is mirror-symmetrical around its longitudinal axis, featuring oblique faces merging with side edges, is used, allowing for quicker and more consistent soil penetration and eliminating the need for different plough points for left- and right-facing plough bodies by being releasably attached via a quick-release coupling device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a plough point with an oblique leading end face is used, then the plough point can be attached to plough bodies, but separate left-hand and right-hand plough points are needed for reversible ploughs, increasing part variety and complexity
Solution Approach 1:
The invention applies asymmetry in reverse - by making the plough point symmetric (specifically mirror-symmetric with respect to a vertical plane through the longitudinal axis), it can be used on both left-facing and right-facing plough bodies. This symmetric design eliminates the need for separate left-hand and right-hand plough points, reducing part variety while maintaining full compatibility with reversible plough configurations.
2Reliability
If the leading portion of the plough point wears down, then the plough point must be replaced, but wear reduces soil-penetration capacity before replacement is needed
Solution Approach 1:
The invention applies preliminary action by designing a pointed front portion that pre-establishes optimal soil-penetration geometry. The symmetric pointed design ensures that even as wear occurs during service life, the geometry maintains sufficient penetration capacity longer than asymmetric designs, delaying the point at which replacement becomes necessary.
Solution Approach 2:
The invention applies parameter changes by optimizing the geometric parameters of the plough point - specifically the symmetric pointed front portion with specific angle ranges (30-60 degrees for the pointed portion, 10-30 degrees for oblique faces). These parameter optimizations ensure maintained penetration performance throughout the service life, extending usable duration before replacement is required.
3Productivity
If a pointed front portion with mirror-symmetry is used, then soil-penetration properties improve and single plough points can serve both left- and right-facing bodies, but the manufacturing and attachment system must accommodate this new geometry
Solution Approach 1:
The invention applies universality by designing a single plough point geometry that performs multiple functions: it penetrates soil effectively (pointed front portion), works on both left- and right-facing plough bodies (mirror-symmetry), and maintains performance throughout service life. This universal design simplifies the attachment system by eliminating the need for different attachment configurations for left and right sides.
Data Source
AI summary
A wearing-part arrangement for a leading edge of a soil-working implement includes a point configured to be releasably attached to the soil-working implement. The point has a pointed front portion and a transverse elevation projecting from an upper face thereof. At least the front portion is mirror-symmetrical around a longitudinal axis of the point and has first and second oblique faces diverging in a direction of a socket on the point and merging with a first side edge surface and a second side edge surface. The first oblique face is bounded by a first cutting edge, and the second oblique face is bounded by a second cutting edge. When the point is attached to the soil-working implement, at least a rear portion of the second oblique face and the second side edge surface adjacent to the second oblique face project beyond a side edge of the soil-working implement.