Mounting Device for Loading Crane Chassis Assembly
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Solution Overview
Problem
Existing assembly devices for loading cranes result in an unfavorable increase in the loading sill height, limiting the use of the full platform length and requiring separate guides and mounting components, which complicates the assembly process.
Innovation Solution
The assembly device integrates cross braces as hollow profiles with cavities to support crane components, allowing for weld-free attachment to the chassis, eliminating the need for auxiliary frames and separate guides, and featuring detachable connections for adaptability to different chassis geometries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If an auxiliary frame is used to support the loading crane, then the structure provides sufficient support, but the loading sill height increases unfavorably
Solution Approach 1:
The patent merges the auxiliary frame function into the cross braces by integrating mounting plates directly onto the cross brace structure. This eliminates the need for a separate auxiliary frame, thereby reducing the loading sill height while maintaining structural support capability through the combined cross brace and mounting plate assembly.
2Ease of operation
If separate guides are provided for the boom, then the boom can be properly guided, but the device complexity increases
Solution Approach 1:
The patent combines the guidance function into the cross braces themselves, which serve as both structural support elements and guidance rails for the boom. The mounting plates are integrated onto these same cross braces, eliminating the need for separate guides and reducing overall device complexity while maintaining proper boom guidance.
3Manufacturing precision
If the assembly device is designed for specific chassis geometries, then the attachment is precise, but the adaptability to different chassis types is reduced
Solution Approach 1:
The patent employs adjustable mounting plates that can be positioned and secured at different locations on the cross braces. This dynamic adjustability allows the assembly device to adapt to various chassis geometries while maintaining precise attachment, as the mounting plates can be repositioned to match different mounting point configurations on different vehicle chassis.
4Ease of manufacture
If weld-free assembly is implemented, then the assembly process is simplified, but the connection strength may be reduced
Solution Approach 1:
The patent replaces the welding process with a mechanical bolted connection system consisting of mounting plates and fasteners. This substitution maintains connection strength through proper mechanical fastening while significantly simplifying the assembly process, eliminating the need for welding equipment and procedures, and enabling easier disassembly and reconfiguration.
Data Source
Figure 1a
Figure 1b
Figure 2a
AI summary
Mounting device (1) for a support of a loading crane or a loading crane (2) by means of which the support or the loading crane can be mounted on a first chassis longitudinal member (10) and a second chassis longitudinal member (11) of a motor vehicle (9), wherein the mounting device (1) has at least one cross member (5, 6), wherein the mounting device (1) has a first retaining clip (3) and a second retaining clip (4) which are connected to each other by the at least one cross member (5, 6), wherein in the assembly state the first retaining clip (3) encompasses the first chassis longitudinal member (1) and the second retaining clip (4) encompasses the second chassis longitudinal member (11).