Adjustable Auxiliary Frame for Vehicle Crane Mounting
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Solution Overview
Problem
Existing auxiliary frames for mounting cranes on vehicles are complex, labor-intensive, and time-consuming to develop, requiring customization for specific types of lorries and cranes, with limited adaptability and high production costs.
Innovation Solution
An auxiliary frame composed of adjustable longitudinal struts and transverse elements with discrete holes and grooves, allowing for flexible positioning of cranes on various vehicles, simplifying the mounting process and enabling use across multiple types of vehicles and cranes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If custom bent longitudinal girders are used to follow chassis contours, then the auxiliary frame fits specific vehicle types, but the design becomes complex and time-consuming
Solution Approach 1:
The auxiliary frame is divided into separate longitudinal girders and transverse elements that can be independently positioned and assembled, eliminating the need for complex custom bending of integrated girders
Solution Approach 2:
The transverse elements are made adjustable along the longitudinal girders, allowing the frame configuration to adapt to different vehicle chassis contours without redesigning the entire structure
2Adaptability or versatility
If custom auxiliary frames are designed for specific lorry types, then the frame fits the vehicle, but development time and labor increase
Solution Approach 1:
The auxiliary frame design with adjustable transverse elements can accommodate multiple lorry types and crane configurations, serving universal purposes without requiring custom development for each application
Solution Approach 2:
The position of transverse elements can be changed along the longitudinal girders to adapt to different vehicle dimensions, allowing the same frame design to work across various lorry types
3Ease of operation
If the auxiliary frame is mounted on the chassis, then the crane can be fixed, but the mounting process is labor-intensive
Solution Approach 1:
The auxiliary frame is assembled from separate longitudinal girders and transverse elements that can be independently mounted and adjusted, simplifying the overall mounting process
Solution Approach 2:
The adjustable transverse elements allow for flexible positioning during mounting, enabling easy adaptation to different mounting locations without complex alignment procedures
4Ease of operation
If sufficient play is provided between crane and vehicle parts, then crane movements are not hindered, but space on the lorry is reduced
Solution Approach 1:
The adjustable transverse elements allow the auxiliary frame to be positioned optimally, providing just enough clearance for crane operations while maximizing the use of available space on the lorry
Data Source
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AI summary
Auxiliary frame for mounting a crane on the chassis of a vehicle, composed of at least two longitudinal struts and at least two transverse elements which can be displaced in the longitudinal direction of the longitudinal struts in a discontinuous manner by means of bolts which are provided through holes in the longitudinal struts, whereby the transverse elements are provided with grooves designed for fixing the crane by means of bolts and whereby the distance between the holes in the longitudinal struts and the length of the grooves is selected such that the crane can be fixed in any place whatsoever in the longitudinal direction of a longitudinal strut.