Steerable Support Wheel for Construction Vehicle Stability
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Solution Overview
Problem
Conventional agricultural and construction vehicles, such as wheel dumpers, face instability issues due to shifting center of gravity during loading, especially on steep or soft terrain, leading to accidents and inadequate traction, which existing designs fail to adequately address.
Innovation Solution
The vehicle incorporates a support unit with a steerable support wheel on a third wheel axle, which can be adjusted and actuated to maintain stability and traction, featuring an articulated steering system and adjustable support unit to manage load distribution and prevent tilting, along with an auxiliary drive motor for improved off-road capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional wheel dumper design with two axles is used, then the vehicle structure is simple, but the vehicle stability is insufficient when center of gravity shifts during tipping or on steep terrain
Solution Approach 1:
The vehicle is divided into two articulated frame units (front and rear) connected by an articulated steering joint, with the support unit integrated into the rear frame unit. This segmentation allows independent movement and positioning of each frame unit, improving stability during tipping operations and on uneven terrain while maintaining structural flexibility.
Solution Approach 2:
A third wheel axle is added perpendicular to the plane formed by the first two axles, creating a three-axle configuration. This dimensional addition provides an extra support point that prevents lateral tilting and improves stability during loading and transport operations without significantly complicating the overall vehicle structure.
2Reliability
If the support wheel is fixed in position, then the structure is simple, but the support wheel causes slippage and wear during curve movement
Solution Approach 1:
The support wheel is equipped with a steering mechanism that allows it to rotate and adjust its orientation during vehicle movement. This dynamic adjustment enables the support wheel to follow the vehicle's turning path, preventing slippage and reducing wear on both the wheel and ground surface during curve movement.
Data Source
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AI summary
A vehicle 1, in particular a transport vehicle, is proposed, comprising a vehicle frame and a drive motor, in particular an internal combustion engine and/or electric motor and/or hydraulic motor, wherein a vehicle frame 6 and at least two wheel axles are provided, and the vehicle frame 6 includes at least one load-bearing structure 2, such as a trough 13 or the like, which is pivotable about a tilting axis by means of a first adjustment unit, for receiving/storing material, in particular pourable building material, wherein the load-bearing structure 2 is arranged at least partially in an intermediate area between the two wheel axles in the transport or driving position and can be pivoted at least partially over one of the wheel axles into an edge area of the vehicle 1 in a tilting position. The vehicle 1 is intended to exhibit improved safety, in particular driving and static stability.This is achieved by the frame 6 comprising at least one support unit 21 with at least one support wheel 19 rotatable about a third wheel axle 20, in particular a third rigid axle, for supporting the vehicle 1 or the vehicle frame 6, wherein the at least one support wheel 19 is designed to be steerable.