Guide Rail Vehicle Buffer Mechanism Shear Load Absorption
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Solution Overview
Problem
Conventional guide rail type vehicles face issues with load absorption due to high rubber rigidity, direct load transmission, increased weight, and high inertia, leading to inadequate load absorption and increased maintenance needs.
Innovation Solution
A guide rail type vehicle with a guide device featuring a main guide wheel and a branch guide wheel, a guide arm and link connected via rotational shafts, and a buffer mechanism between the arm and link to absorb loads in a shear direction, reducing weight and improving load absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a buffer rubber is used to absorb load in the compression direction, then the load absorption structure is simple, but the load cannot be sufficiently absorbed due to high rubber rigidity
Solution Approach 1:
The patent changes the parameter of load absorption direction from compression to shear direction. The buffer rubber is configured to absorb load primarily in the shear direction rather than compression, where rubber has lower rigidity and better absorption characteristics. This parameter change resolves the contradiction by utilizing the material's favorable mechanical properties in a different directional parameter.
Solution Approach 2:
The patent introduces a rotational degree of freedom to the guide arm, allowing it to rotate around a rotational shaft. This adds a dimensional aspect to the buffer mechanism, where the guide arm's rotation enables the buffer rubber to operate in shear deformation mode rather than simple compression, improving load absorption capability.
2Device complexity
If the guide wheel supporting member is formed integrally with the guide arm, then the structure is simple, but the load is directly transmitted without being absorbed
Solution Approach 1:
The patent segments the guide arm into two separate components: the guide arm itself and the guide wheel supporting member. These are connected through a rotational shaft, creating a joint that allows relative rotation. This segmentation introduces a buffer zone that absorbs load through the rotation mechanism, preventing direct load transmission while maintaining structural simplicity.
3Reliability
If conventional buffer mechanisms are used, then the guide device structure is established, but the weight and inertia increase leading to inadequate load absorption
Solution Approach 1:
The patent changes the buffer mechanism's operating parameter from compression to shear direction, utilizing the guide arm's rotation capability. This approach achieves effective load absorption without requiring heavy buffer components, as the shear deformation of the buffer rubber and the rotational mechanism provide sufficient cushioning with minimal weight increase.
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 vehicle effectively absorbs loads and vibrations, providing a more comfortable ride, reducing component wear, and minimizing maintenance requirements while reducing the weight and inertia of the guide device.
Implementation Method 1
a buffer mechanism is provided between the guide arm and the guide link, and when the guide link rotates around the first rotational shaft with the guide wheel contacting with the guide rail, the buffer mechanism suppresses rotation of the guide link
Implementation Method 2
the guide arm and the guide link are rotatably connected to each other via a first rotational shaft, the guide link includes a second rotational shaft in which the main guide wheel and the branch guide wheel are rotatably mounted
Data Source
AI summary
In a guide rail type vehicle, a guide wheel includes a main guide wheel that rolls in contact with a main guide rail and a branch guide wheel that rolls in contact with a branch guide rail, a guide frame includes a guide arm that extends in a vehicle width direction and a guide link, the guide arm and the guide link are rotatably connected to each other via a first rotational shaft, the guide link includes a second rotational shaft in which the main guide wheel and the branch guide wheel are rotatably mounted to both ends, a buffer mechanism is provided between the guide arm and the guide link, and when the guide link rotates around the first rotational shaft with the guide wheel contacting with the guide rail, the buffer mechanism suppresses rotation of the guide link.