Elastic Crawler Protrusion Layout for Durability and Vibration Absorption
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Solution Overview
Problem
Conventional elastic crawlers experience decreased durability and vibration absorption performance due to large dimensions in the crawler thickness direction of lateral slip preventing protrusions and track roller rolling portions, leading to increased cracking and reduced mechanical strength.
Innovation Solution
The elastic crawler design features lateral slip preventing protrusions with a horizontally long shape in the crawler width direction, incorporating an intermediate track roller rolling portion, and inclined tread sides to enhance strength and prevent lateral slip between core metals, while maintaining a smaller thickness dimension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the lateral slip preventing protrusion and track roller rolling portion are made with large dimensions in the crawler thickness direction to ensure mechanical strength and prevent lateral slip, then the strength and lateral slip prevention capability are improved, but the crawler main body becomes more prone to cracking and durability decreases due to repeated bending
Solution Approach 1:
The lateral slip preventing protrusion is redesigned to extend primarily in the crawler width direction rather than the thickness direction. This dimensional shift allows the protrusion to maintain effective lateral slip prevention capability while reducing the thickness dimension that causes repeated bending and cracking during crawler operation.
Solution Approach 2:
The invention changes the dimensional parameters of the lateral slip preventing protrusion by making the dimension in the crawler width direction larger than the dimension in the thickness direction. This parameter transformation resolves the contradiction by maintaining functional effectiveness while reducing the problematic thickness dimension that leads to cracking.
2Strength
If the lateral slip preventing protrusion and track roller rolling portion are made with large dimensions to ensure strength, then lateral slip prevention is improved, but the vibration absorption performance decreases due to damage to the elastic material
Solution Approach 1:
By redirecting the protrusion's dimensional growth from the thickness direction to the width direction, the invention preserves the elastic material's vibration absorption capabilities while maintaining sufficient lateral slip prevention functionality.
Solution Approach 2:
The invention transforms the dimensional parameters by making the width direction dimension larger than the thickness direction dimension, thereby preserving the elastic material's thickness for vibration absorption while maintaining lateral slip prevention through increased width.
3Length of moving object
If the track roller rolling portions are made narrow in the crawler width direction, then the overall crawler width is reduced, but the crawler main body becomes more easily cracked at the track roller rolling portions
Solution Approach 1:
The invention compensates for the narrow width of track roller rolling portions by increasing the lateral slip preventing protrusion's extension in the crawler width direction, thereby maintaining overall structural integrity and durability without requiring increased crawler width.
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
This design secures mechanical strength, prevents lateral slip, and improves durability and vibration absorption performance by reducing material thickness and bending stress, thereby enhancing the crawler's overall performance.
Implementation Method 1
a crawler main body mainly composed of an elastic material
Data Source
AI summary
An intermediate track roller rolling portion (28, 29) is provided on a core metal (7) between a lateral slip preventing protrusion on one side (26) and a lateral slip preventing protrusion on the other side (27). Each of the lateral slip preventing protrusions (26 and 27) has a horizontally long shape in which a dimension (B) in a crawler width direction from a lateral slip preventing surface side (26b, 27b) to an anti-lateral slip preventing surface side (26c, 27c) is longer than a dimension (A) from a tread side (26a, 27a) to a track roller rolling portion (28, 29).