Soil Roller Rim Mounting via Segmented Plates
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Solution Overview
Problem
The complexity and difficulty in manufacturing and assembling 'star rims' with special contours for soil cultivation machines, which require precise rotational positioning and are prone to incorrect assembly leading to uneven gaps or spacing between packer wheels.
Innovation Solution
The use of separate mounting plates that can be attached to both the rims and axle flanges, allowing for easy assembly without the need for special shapes or rotational alignment, with the plates spanning any gap between the rim and axle flange to secure the rim firmly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If star rims with special contours and axle flanges with lugs are used to enable rims to be slid over outer axle flanges and attached to inner axle flanges, then rims can be mounted on middle axle blocks, but the manufacturing complexity and assembly difficulty increase significantly
Solution Approach 1:
The mounting function is segmented into two independent parts: the axle flange with mounting holes and the rim with corresponding mounting holes. The mounting plate acts as a separate connector that joins these two parts, eliminating the need for complex interlocking contours between the rim and axle flange themselves.
Solution Approach 2:
A mounting plate is introduced as an intermediary component between the axle flange and the rim. This mounting plate simplifies the connection by providing a standardized mounting interface, eliminating the need for complex star-shaped contours and lugs, and allowing simple circular axle flanges and rims to be connected through the mediator plate.
2Reliability
If star rims with specific rotational positioning are used, then rims can be securely attached to axle flanges, but incorrect assembly leading to uneven gaps or spacing between packer wheels occurs
Solution Approach 1:
The mounting plate introduces asymmetry through its specific orientation and mounting hole positions, which guide correct assembly. The mounting plate's asymmetric design ensures that it can only be installed in the correct rotational position, preventing incorrect assembly while maintaining simple circular rim and axle flange geometries.
Solution Approach 2:
The mounting plate is pre-attached to either the rim or the axle flange before final assembly. This preliminary attachment establishes the correct rotational position and orientation, ensuring that when the second component is attached, the alignment is already predetermined, thus preventing incorrect assembly.
3Reliability
If rims are tightly fitted to axle flanges, then secure attachment is achieved, but manufacturing precision requirements increase due to the need for precise rotational positioning
Solution Approach 1:
The attachment function is segmented into the mounting plate connection system, which separates the positioning function (handled by the mounting plate's asymmetric features) from the secure attachment function (handled by the mounting plate's clamping or fastening mechanism). This allows loose-tolerance circular rims and axle flanges to be securely attached through the mounting plate without requiring precise rotational positioning of the rim itself.
Data Source
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AI summary
The present invention comprises a floor roller with a support tube on which several tires mounted on rims are spaced apart from one another, wherein axle flanges are provided on the support tube to which the rims are attached, wherein the axle flanges and the rims are free of overlap even when the rims are mounted, wherein the rims are attached to the axle flanges by means of ring-segment-like mounting plates, wherein the mounting plates, when viewed in a direction parallel to the longitudinal axis of the support tube, cover both the axle flanges and the rims and are clamped against each axle flange and the associated rim from at least one side.