Pivotable Axle Lifting Device for Heavy Vehicle Loads
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Solution Overview
Problem
Existing axle lifting devices for vehicles, particularly air-sprung vehicle axles, are limited in their ability to lift heavier loads due to their design constraints, which restricts their dimensioning and effectiveness.
Innovation Solution
An axle lifting device comprising a support element, a lifting element, and a lever element, where the support element and lever element are coupled via the lifting element, allowing the support element to pivot on the lever element, which exerts a vertical force on the axle link, utilizing a modular design that can be retrofitted to existing systems, enabling effective lifting of heavier axles with a compact and efficient servo effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the axle lifting device is dimensioned to lift heavier loads, then the lifting capacity increases, but the device complexity and size increase
Solution Approach 1:
The support element is designed to pivot relative to the lever element, creating a dynamic configuration that changes during operation. This dynamic arrangement allows the device to amplify lifting force through geometric changes rather than requiring a larger, more complex static structure, resolving the contradiction between lifting capacity and device complexity
Solution Approach 2:
The invention changes the geometric parameters of the lifting mechanism by allowing the support element to pivot, which alters the lever arm lengths and force multiplication ratio during operation. This parameter change enables heavier loads to be lifted without proportionally increasing the overall device size or complexity
2Volume of moving object
If the lifting element is made smaller to reduce device size, then the device compactness improves, but the lifting force decreases
Solution Approach 1:
The pivotable support element creates a dynamic mechanical advantage system where a compact lifting element can generate amplified lifting force through the pivoting motion. The changing geometry during operation allows a smaller lifting element to produce the necessary lifting force that would otherwise require a larger component
Solution Approach 2:
The lever element acts as an intermediary between the compact lifting element and the axle link, translating the small movement and force from the lifting element into a amplified vertical force on the axle link through its pivotable connection and geometric configuration
3Stability of the object's composition
If the support element is rigidly fixed to the lever element, then the structural stability improves, but the friction and wear increase
Solution Approach 1:
Instead of a rigid fixed connection, the support element is allowed to pivot on the lever element, creating a dynamic connection that maintains structural stability during operation while minimizing friction and wear through the use of pivot joints rather than sliding contacts
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for the effective lifting of heavier vehicle axles by amplifying the force applied, enabling the axle lifting device to be adapted to different spatial conditions and lift heavier loads with a smaller dimensioned lifting element, while maintaining efficiency and minimizing friction.
Implementation Method 1
the lever element exerts a preferably vertical force on an axle link of the vehicle in order to lift it
Implementation Method 2
the support element is rotatably or pivotably mounted on the lever element
Data Source
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AI summary
The invention relates to an axle raising device for a vehicle, in particular for pneumatic-suspension vehicle axes, comprising a support element, a lifting element and a lever element, wherein the support element and the lever element can be coupled to one another by means of the lifting element in such a way that, when the lifting element is actuated, the support element is supported on a frame element of the vehicle and the lever element exerts a preferably vertical force on an axle link of the vehicle in order to raise the latter, wherein the lever element is rotatably or pivotably arranged so as to be substantially positionally fixed in relation to a distal end of the axle link and/or the frame element, and wherein the support element is rotatably or pivotably mounted on the lever element.