Soil Compactor Wheel Assembly With Pivoting Auxiliary Carrier Access
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Solution Overview
Problem
Existing soil compactor wheel assemblies do not facilitate easy access to wheels for assembly or repair work, particularly in the central region, making maintenance and replacement procedures cumbersome and requiring the compactor to be raised.
Innovation Solution
A wheel assembly design featuring an auxiliary wheel carrier that is pivotable and transversely offset relative to the operating wheel rotation axis, allowing it to be moved out of the way for maintenance, with a telescopic feature to adjust the distance between the pivot axis and the auxiliary wheel rotation axis, eliminating the need to lift the compactor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the auxiliary wheel carrier is rigidly fixed to the main wheel carrier, then the structure is simple and stable, but access to central wheels for maintenance is difficult
Solution Approach 1:
The auxiliary wheel carrier is designed to be movable relative to the main wheel carrier through a pivoting mechanism. The carrier can rotate about a pivot axis to move between a transport position (where it supports the auxiliary wheel) and a maintenance position (where it clears access to central wheels). This dynamic capability resolves the contradiction by enabling easy wheel maintenance access while maintaining structural integrity during operation.
2Ease of repair
If the auxiliary wheel carrier is made pivotable for maintenance access, then wheel maintenance becomes easier, but the coupling mechanism becomes more complex
Solution Approach 1:
The coupling mechanism is divided into separate functional elements: a pivot axis for rotation, coupling elements for securing the carrier to the main wheel carrier, and positioning features for defining end positions. This segmentation allows each component to perform its specific function independently, simplifying the overall design while enabling the required pivoting motion for easy wheel repair and replacement.
3Ease of operation
If the pivot axis is offset transversely to achieve carrier movement, then maintenance access is improved, but the auxiliary wheel position changes vertically
Solution Approach 1:
The auxiliary wheel carrier incorporates a telescopic mechanism that allows the distance between the pivot axis and the auxiliary wheel rotation axis to be adjusted. During the pivoting motion caused by the offset pivot axis, the telescopic mechanism compensates for vertical position changes by extending or retracting, thereby maintaining the auxiliary wheel at a substantially constant vertical position throughout the maintenance access operation.
Data Source
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AI summary
A wheel assembly for a soil compactor comprises a plurality of wheels (20) successively mounted on a main wheel carrier (24) in the direction of an operating wheel rotation axis (B), wherein at least one third wheel arranged in the direction of the operating wheel rotation axis (B) between a first wheel and a second wheel forms an assembly auxiliary wheel (205) and is mounted on the main wheel carrier (24) by means of an auxiliary wheel carrier (34), wherein the auxiliary wheel carrier (34) is rigidly coupled to the main wheel carrier (24) in an auxiliary wheel operating state and is pivotable about a pivot axis and displaceable in the direction of the pivot axis with respect to the main wheel carrier (24) in an auxiliary wheel assembly state.