Dump-Hinge Trailer Coupling for Faster Crawler Machine Transfer
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Solution Overview
Problem
Mines and quarries lack optimized low trailers and transfer vehicles for efficiently transferring crawler chassis work machines, such as drill apparatuses, due to the inadequacy of existing trailers and vehicles, leading to slow transfers and wear on the crawler chassis.
Innovation Solution
A system utilizing an articulated frame steered transfer vehicle with a dump hinge as a tow point, a low trailer with a platform, and a drawbar, along with a draw arrangement supported by a torque arm, allowing for quick and efficient transfer of work machines without needing to remove the dump bed, while maintaining the vehicle's functionality for material transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a low trailer is used to transfer crawler chassis work machines, then the wear on crawler chassis is reduced, but the transfer speed becomes slow
Solution Approach 1:
The patent applies dynamics by making the dump bed articulated and tiltable relative to the transfer vehicle frame. The dump bed can be tilted to different positions: when tilted forward, it allows the low trailer to be quickly positioned and coupled to the transfer vehicle; when tilted backward or to intermediate positions, it enables rapid unloading of the work machine. This dynamic adjustment capability allows the system to achieve both fast transfer speeds and reduced crawler chassis wear by minimizing the time the work machine spends being towed on the low trailer.
2Productivity
If existing transfer vehicles with dump bed are used for transferring work machines, then the utilization rate of transfer vehicles improves, but the complexity of the transfer system increases
Solution Approach 1:
The patent applies universality by designing the dump bed to serve multiple functions: it acts as both the material transport container for earthmoving operations and as the mounting structure for the low trailer during work machine transfers. The dump bed's articulated hinge and tilting mechanism are utilized in both modes of operation, eliminating the need for separate transfer vehicles and reducing overall system complexity while maintaining high utilization rates.
Solution Approach 2:
The dynamic tilting capability of the dump bed enables it to adapt to different operational requirements. When transferring work machines, the dump bed tilts to position the low trailer correctly; when transporting material, it tilts for unloading. This single dynamic structure replaces what would otherwise require multiple specialized vehicles, simplifying the overall system while improving utilization.
3Productivity
If the dump bed is removed to install a dedicated towing mechanism, then the transfer efficiency increases, but the vehicle loses its material transport functionality
Solution Approach 1:
The patent resolves this contradiction by making the dump bed itself the towing mechanism. The dump bed's articulation hinge serves as the connection point for the low trailer, and its tilting motion provides the towing action. This eliminates the need to remove the dump bed while installing a dedicated towing mechanism, as the dump bed's existing mechanical properties are utilized for both material transport and work machine transfer functions simultaneously.
Data Source
AI summary
The aspects of the disclosed embodiments relate to a system for transferring a crawler chassis work machine, wherein the system includesan articulated frame steered transfer vehicle with a tow point, at least one dump hinge implemented with a transverse pivot shaft, a dump bed articulated with thee dump hinge, and a support point placed at a distance below the dump hinge,a low trailer with a platform for supporting the work machine on the low trailer during transfer, and a drawbar for fastening the low trailer pivotally to the tow point for towing the low trailer with the transfer vehicle,a draw arrangement supported to the pivot shaft and the support point non-rotatably with a torque arm included in the draw arrangement, wherein the draw arrangement includes a draw element for connecting the low trailer to the transfer vehicle with the draw arrangement.