Pivotable Operator Platform for Road Pavers With Flexible Steering Shaft
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Solution Overview
Problem
Existing road construction machines face challenges in providing operators with precise control and comprehensive site visibility while adapting to diverse work environments, necessitating improved operator platforms for enhanced maneuverability and visibility.
Innovation Solution
The road construction machine features a support carriage with a pivotable operator seat and steering wheel, adjustable along a transverse guide, combined with a steering drive shaft assembly that includes a direction-change mechanism and length compensation device, allowing for pivoting and sliding adjustments to enhance operator positioning and maintain uninterrupted torque transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the operator seat and steering wheel are made movable along the transverse guide to improve positioning flexibility, then the adaptability to work environments is improved, but the mechanical steering transmission reliability deteriorates due to changing relative positions
Solution Approach 1:
The patent employs a flexible coupling mechanism in the steering drive shaft assembly that can accommodate changes in distance and relative position between the steering wheel and steering output shaft. This flexible connection maintains uninterrupted torque transmission while allowing the operator seat to move along the transverse guide, thus resolving the contradiction between positioning flexibility and steering reliability.
2Ease of operation
If the support carriage is made adjustable along the transverse guide to enhance visibility and control, then the ease of operation is improved, but the device complexity increases due to additional adjustment mechanisms
Solution Approach 1:
The patent implements a dynamically adjustable support carriage system where the operator seat and steering wheel can be positioned along the transverse guide according to work requirements. The steering drive shaft assembly incorporates flexible connections that automatically adapt to position changes, providing ease of operation without requiring complex locking or fixing mechanisms for each position.
3Adaptability or versatility
If the steering wheel is decoupled from fixed position to allow seat movement, then the adaptability is improved, but the mechanical connection stability deteriorates
Solution Approach 1:
The flexible coupling in the steering drive shaft assembly maintains stable torque transmission while accommodating positional changes. This flexible but reliable connection allows the steering wheel to remain mechanically connected to the steering output shaft even when the operator seat moves along the transverse guide, preserving both adaptability and connection stability.
Data Source
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AI summary
The invention relates to a road construction machine, in particular a road paver or a tandem roller, for processing soil in a forward direction with an operating device that is movable and pivotable.