Lifting Arrangement With Disengageable Engaging Device
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Solution Overview
Problem
Traditional lifting arrangements for heavy-duty vehicle wheel axles are often large and/or heavy, posing challenges in terms of space efficiency, weight reduction, and mechanical durability.
Innovation Solution
A lifting arrangement comprising a first elongated member with a vehicle frame coupling portion and a second elongated member with a wheel axle coupling portion, where the coupling portions are offset and the arrangement is adjustable between maximum and minimum lengths via an engaging device that can be disengaged to prevent force transfer during vehicle operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the engaging device remains engaged during vehicle operation, then the lifting arrangement maintains lifting force, but mechanical elements are damaged by road irregularities
Solution Approach 1:
The engaging device is designed to be dynamically switchable between engaged and disengaged states. During normal vehicle operation, it remains disengaged to allow wheel axle movements without damaging mechanical elements. When lifting is required, it transitions to the engaged state to provide lifting force, thus adapting its state based on operational requirements.
Solution Approach 2:
The system proactively disengages the engaging device before road irregularities can cause damage to mechanical elements. By anticipating potential damage from wheel axle movements during vehicle operation, the system prevents harmful force transfers before they occur, rather than reacting after damage happens.
2Reliability
If traditional lifting arrangements are used, then lifting function is provided, but the system becomes large and heavy
Solution Approach 1:
The lifting arrangement is integrated with the vehicle's existing suspension system, allowing the same mechanical structure to serve dual purposes: normal suspension function and lifting function. This eliminates the need for completely separate lifting mechanisms, significantly reducing weight while maintaining lifting capability.
Solution Approach 2:
The lifting arrangement merges the lifting mechanism with the existing suspension components, combining two functions into one integrated system. The elongated members and engaging device work within the existing suspension framework, consolidating structures rather than adding separate systems.
3Force
If the engaging device is always engaged, then lifting force is continuously maintained, but forces from road irregularities damage mechanical elements
Solution Approach 1:
The engaging device transitions between engaged and disengaged states based on operational requirements. During vehicle operation on irregular surfaces, it disengages to prevent harmful force transfers. When lifting is needed, it engages to provide lifting force, dynamically adapting to maintain beneficial forces while blocking harmful ones.
Solution Approach 2:
The engaging device acts as an intermediary between the wheel axle and the lifting mechanism. When disengaged, it prevents force transfer from road irregularities to mechanical elements. When engaged, it mediates the transmission of lifting force while isolating the system from harmful vibrations and shocks during normal operation.
Data Source
Figure 1
Figure 2a~3b
Figure 4a~4b
AI summary
The disclosure relates to a lifting arrangement (30, 10, 10', 10", 10‴) for lifting a wheel axle (50) of a vehicle (100), the lifting arrangement comprising: - a first elongated member (32, 32', 32", 12A) extending along a first axis (X1, X), the first elongated member (32, 32', 32", 12A) comprising a vehicle frame coupling portion (322, 13A) for connecting the lifting arrangement (30, 10, 10', 10", 10‴) to a vehicle frame of the vehicle (100) during use, - a second elongated member (34, 34', 34", 12B) extending along a second axis (X2, X), the second elongated member (34, 34', 34", 12B) comprising a wheel axle coupling portion (342, 13B) for connecting the lifting arrangement (30) to the wheel axle (50) of the vehicle (100) during use, wherein the vehicle frame coupling portion (322, 13A) and the wheel axle coupling portion (342, 13B) are offset from each other by a length (L) and wherein the lifting arrangement (30) is arranged to adjust the length (L) between a maximum length (Lmax) and a minimum length (Lmin) by axially moving the second elongated member (34, 34', 34", 12B) along the second axis (X2, X) relative the first elongated member (32, 32', 32", 12A), wherein the lifting arrangement (30, 10, 10', 10", 10‴) further comprises an engaging device (36, 36', 14A1) for axially moving the second elongated member (34, 34', 34", 12B) along the second axis (X2, X) relative the first elongated member (32, 32', 32"), and wherein the engaging device (36, 36', 14A1, 114A1, 214A1) is arranged to be provided in an engaged state with the first elongated member (32‴) or the second elongated member (34, 34', 34", 12B) so that the length (L) can be reduced and in a disengaged state with respect to the first elongated member (32‴) or the second elongated member (34, 34', 34", 12B) so that forces exerted on the wheel axle coupling portion (342, 13B) from the wheel axle (50) during use are prevented from being transferred to the engaging device (36, 36', 14A1, 114A1, 214A1). The disclosure also relates to a shock absorber device, a vehicle (100) and to a vehicle suspension system.