Electric Draisine With Detachable Wheel Modules for Portable Rail Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing draisines are bulky and heavy, making them difficult for a single person to transport and use, and accessing intervention zones between railway stations is challenging due to limited road access and safety risks.
Innovation Solution
A compact, lightweight electric draisine with integrated motors in the wheels, foldable arms, and a height-adjustable handlebar, allowing easy transportation and operation on railway tracks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a draisine is designed to travel on railway tracks with standard gauge, then it can operate on existing railway infrastructure, but it becomes very bulky and heavy making it difficult for a single person to transport
Solution Approach 1:
The draisine is divided into separable components: a compact platform body and four detachable wheel assemblies. Each wheel assembly can be independently removed from the platform, allowing the main body to be transported more easily. The wheel assemblies themselves are designed to be lightweight and manageable for single-person handling.
Solution Approach 2:
The wheel assemblies incorporate telescopic axles that can extend when needed for operation on railway tracks and retract when not in use. This dynamic adjustment reduces the overall footprint and weight distribution, making the draisine more manageable for single-person transport while maintaining compatibility with standard gauge tracks during operation.
2Weight of moving object
If a draisine is designed to be compact and lightweight for easy transport, then it can be easily transported by one person, but it becomes difficult to stabilize and control on railway tracks
Solution Approach 1:
The platform body is equipped with four mounting points for wheel assemblies, allowing flexible configuration. When transporting, the platform can be used as a hand truck with its built-in handles. When operating on tracks, all four wheel assemblies are attached to provide stable support and control on the railway infrastructure.
Solution Approach 2:
The telescopic axles allow the wheel assemblies to adjust their position and orientation dynamically. During transport, the axles are retracted to minimize interference. During operation on tracks, the axles extend to ensure proper wheel-rail contact and stability, allowing the lightweight platform to be effectively stabilized when needed.
3Ease of operation
If the wheel assemblies are made detachable for easy transport, then the draisine can be easily assembled and disassembled, but it increases the complexity of the assembly system
Solution Approach 1:
Each wheel assembly is designed as a self-contained module with integrated motor, wheel, and axle components. The modular design with standardized mounting interfaces simplifies the attachment and detachment process. The platform body includes pre-positioned mounting points that align with the wheel assemblies, enabling straightforward connection without complex alignment procedures.
4Weight of moving object
If the draisine is designed to carry only one standing occupant, then it minimizes weight and maximizes portability, but it limits the transport capacity and versatility
Solution Approach 1:
The platform body is designed with dual functionality: it serves as both the operational base when wheel assemblies are attached and as a portable hand truck when the assemblies are removed. The integrated handles and balanced weight distribution allow a single person to easily maneuver the platform body alone for transporting small items or equipment, while the full draisine configuration provides rail transport capability.
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
Enables quick and safe access to intervention points on railway tracks, with a compact design that can be easily transported by one person, even in power-outage scenarios.
Implementation Method 1
at least one electric motor for driving at least one of the at least three wheels
Implementation Method 2
the draisine comprises at least one electric battery for powering the at least one electric motor
Implementation Method 3
the draisine comprises at least one first friction-based mechanical braking device
Implementation Method 4
the draisine comprises at least one magnetic braking device
Data Source
AI summary
A draisine includes: a support platform adapted to receive a standing occupant, at least three wheels for rolling on the rails of a railway track, and at least one electric motor for driving at least one of the at least three wheels.