Drawn Agricultural Machine Depth Control Wheel Mounting
Solution Overview
Problem
Towed agricultural implements with depth control wheels require excessive installation space due to their configuration, where the depth control wheels lag behind the pivot axis, necessitating a forward projection of the holder.
Innovation Solution
The depth control wheels are mounted with a pivot axis behind their axis of rotation, using a bearing with a horizontal axis of rotation that is in or ahead of the pivot axis plane, and an oblique pivot axis inclined at least 30°, preferably 37°, to achieve a compact arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the depth control wheels are arranged with the holder in front of the frame, then the wheels can pivot freely during operation, but the installation space of the device projecting forwards increases
Solution Approach 1:
The patent inverts the conventional arrangement by positioning the pivot mount behind the axis of rotation of the depth control wheels instead of in front. This inversion allows the holder to be integrated into the frame structure without projecting forwards, thereby reducing the installation space while maintaining the wheels' ability to pivot freely during operation
Solution Approach 2:
The pivot mount is merged with the frame structure by positioning it behind the wheel rotation axis. This integration allows the holder to be part of the frame itself rather than a separate forward-projecting component, reducing the overall installation space required while preserving the functional independence of the depth control wheels
Data Source
Figure 1
Figure 2
AI summary
Disclosed is a towed agricultural device comprising processing tools (8) arranged on a frame, a tow bar (2), and depth control wheels (11) displaceably arranged laterally on the frame next to the tow bar (2) and before the processing tools (8) in upright level in order to raise the frame and the processing tools (8) relative to the ground, the depth control wheels (11) being arranged in a freely pivotable manner about a vertical axis (14) by means of a pivot mounting. In order to achieve a simplified arrangement for the depth control wheels (11) that requires less installation space, the pivot axis (14) for the depth control wheels (11) runs obliquely from the back - upwards to the front - directed downwards.