Maglev Rescue Wheel Mechanism With Eccentric Self-Locking Support
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Solution Overview
Problem
Conventional rescue methods for high-speed maglev vehicles are difficult and inefficient due to the wrap-around rail structure, complicating rescue operations.
Innovation Solution
A maglev train rescue wheel device with a mounting base, wheel carriers, hydraulic cylinder, and eccentric rotary shaft mechanism that allows wheels to be lowered and self-locked for vehicle support during rescue, and retracted after completion, utilizing a hydraulic cylinder and locking mechanism for stability and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional skid-based sliding rescue method is used, then the rescue operation can be performed, but the rescue efficiency is low and the operation is difficult due to wrap-around rail structure
Solution Approach 1:
The rescue wheel is designed to be movable between retracted and lowered states through a hydraulic cylinder and eccentric rotary shaft mechanism. This dynamic configuration allows the wheel to adapt to different rescue scenarios, enabling efficient rescue operations while maintaining ease of operation through automated positioning.
Solution Approach 2:
The rescue wheel incorporates a self-locking mechanism through the eccentric rotary shaft that automatically locks the wheel in the lowered state during rescue operations and automatically retracts it after rescue completion. This self-service feature eliminates the need for complex manual operation, significantly improving rescue efficiency while maintaining ease of operation.
2Reliability
If the wheel is lowered to support the vehicle during rescue, then the vehicle can be lifted and supported, but the hydraulic cylinder must bear the full vehicle weight
Solution Approach 1:
The eccentric rotary shaft mechanism acts as a mechanical counterweight system. When the wheel is lowered, the eccentric structure and vehicle weight create a balanced force system where the hydraulic cylinder only needs to overcome the weight difference rather than the full vehicle weight. This reduces the hydraulic cylinder load while maintaining reliable vehicle support stability throughout the rescue operation.
3Adaptability or versatility
If the wheel is designed to retract after rescue, then the device returns to initial state for next operation, but the mechanism complexity increases
Solution Approach 1:
The hydraulic cylinder and eccentric rotary shaft are integrated into a unified mechanism where the hydraulic cylinder simultaneously controls both the lowering and retracting operations. The eccentric rotary shaft serves dual functions of both supporting the wheel in the lowered state and enabling automatic retraction. This merging of functions reduces overall mechanism complexity while maintaining high device reusability for repeated rescue operations.
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 rapid and reliable rescue operations with mechanical self-locking, reducing hydraulic component load and ensuring smooth wheel passage over rail joints, enhancing rescue efficiency and reliability.
Implementation Method 1
The hydraulic cylinder is arranged obliquely, with one end hinged to the horizontal mounting base and the other end hinged to driving arms of the wheel carriers, so as to drive the wheel carriers along with the wheels to rotate around the eccentric rotary shaft
Implementation Method 2
an upper end of the locking spring is connected to the horizontal mounting base, and a lower end of the locking spring is connected to the extension arm of the crank
Data Source
Figure 1~2
Figure 3~4
AI summary
A magnetic levitation train rescue wheel device and a magnetic levitation train. The magnetic levitation train rescue wheel device comprises a mounting base (3), wheel bearing members (2) and a hydraulic cylinder (4). The mounting base (3) comprises a horizontal mounting base (31) and a vertical mounting base (32). The wheel bearing members (2) are located on two sides of the vertical mounting base (32), and, by means of an eccentric rotating shaft (5), are rotatably mounted on the vertical mounting base (32). Each wheel bearing member (2) is separately equipped, by means of a wheel axle (21), with a wheel (1) located on the outer side thereof. The hydraulic cylinder (4) is obliquely provided, one end thereof being hinged to the horizontal mounting base (31), and the other end being hinged to drive arms (22) of the wheel bearing members (2), so as to drive the wheels (1) to be in a retracted or lowered state. The two sides of the vertical mounting base (32) are provided with stop blocks (321). Each wheel bearing member (2) is provided with a supporting portion (23) for positioning. In the lowered state of the wheels (1), the supporting portions (2) of the wheel bearing members (2) abut upward against the stop blocks (321). The device can solve the problem of difficult rescue for high-speed magnetic levitation vehicles, thus improving rescue efficiency.