Semi-Mounted Reversible Plough Wheel Steering for Tighter Tracking
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Solution Overview
Problem
Semi-mounted reversible plows face challenges with complex hydraulic systems, increased weight, and suboptimal maneuverability due to their larger dimensions, which affect their trailing characteristics and handling during soil cultivation.
Innovation Solution
A semi-mounted reversible plow design featuring a steerable wheel system with a first and second steering axis, allowing mechanical and electro-hydraulic control, which simplifies the hydraulic components and improves maneuverability by enabling independent steering adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hydraulic system with multiple hydraulic cylinders is used for wheel steering, then the wheel can be controlled for precise soil cultivation, but the plow's weight increases and the system becomes more complex
Solution Approach 1:
The patent extracts the wheel steering function from the complex hydraulic system by providing a mechanical stop that engages with the wheel to fix its position parallel to the direction of travel during transport. This eliminates the need for multiple hydraulic cylinders dedicated to wheel steering, thereby reducing system complexity while maintaining control capability.
Solution Approach 2:
The hydraulic actuator serves multiple functions: it rotates the plow frame for changing working directions and also controls the wheel position through mechanical engagement. This multi-functionality reduces the need for separate hydraulic components for wheel steering, simplifying the overall system.
2Ease of operation
If a hydraulic system with multiple hydraulic cylinders is used for wheel steering, then the wheel can be controlled for precise soil cultivation, but the plow's weight increases
Solution Approach 1:
The patent removes unnecessary hydraulic cylinders from the system by implementing a mechanical stop mechanism that works with a single hydraulic actuator to control wheel position. This extraction of redundant components directly reduces the plow's weight while maintaining the capability for precise wheel control during soil cultivation.
3Ease of manufacture
If the wheel alignment is fixed parallel to the plow body mounting, then the plow is simple to manufacture, but the plow cannot achieve precise soil cultivation when working direction changes
Solution Approach 1:
The patent introduces a dynamic wheel alignment system where the wheel can be rotated relative to the plow body mounting through a hydraulic actuator. This allows the wheel alignment to change dynamically based on the working direction, enabling precise soil cultivation in both forward and reverse directions while maintaining ease of manufacture through a relatively simple mechanical linkage system.
4Ease of operation
If continuous wheel control is necessary for precise soil cultivation, then soil cultivation precision is improved, but the hydraulic system becomes more complex
Solution Approach 1:
The patent implements a self-aligning mechanism where the mechanical stop automatically engages with the wheel to maintain the correct alignment parallel to the direction of travel. This self-service feature eliminates the need for continuous hydraulic control to maintain wheel alignment, reducing system complexity while ensuring precise soil cultivation through automatic positioning.
Data Source
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AI summary
The present invention relates to a semi-mounted reversible plow with a drawbar for steerable connection to a tractor, a plow frame supporting several plow bodies, a rotary device for rotating the plow frame about at least one axis of rotation, in particular on the wheel side, from one working position to another working position and to a transport position, wherein the rotary device is connected to the drawbar and the plow frame, a stabilizer connected to the drawbar and extending substantially along the plow frame, and a wheel arranged on a region of the stabilizer facing away from the drawbar, in particular at the end, wherein the wheel is connected to the stabilizer at least via a pivot bearing and is pivotable about a first steering axis, wherein pivoting of the wheel about the first steering axis occurs as a function of rotation of the plow frame about the axis of rotation.According to the invention, a second steering axis is provided, in particular in an area of the stabilizer facing away from the traction device and/or behind the first steering axis in the direction of operation, wherein the wheel is pivotable about the first steering axis and/or the second steering axis.