Elastic Crawler Structure for Lateral Slip and Crack Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional elastic crawlers experience reduced durability and vibration absorption performance due to large dimensions of lateral slip preventing protrusions and track roller rolling portions, leading to increased cracking and decreased mechanical strength.
Innovation Solution
The elastic crawler design incorporates horizontally long-shaped lateral slip preventing protrusions with overlapping track roller rolling portions, ensuring strength and preventing lateral slip between core metals, while maintaining a smaller thickness dimension to enhance durability and vibration absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the lateral slip preventing protrusion and track roller rolling portion are made large in dimension 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
Solution Approach 1:
The patent changes the dimensional orientation of the lateral slip preventing protrusion from a vertically long shape to a horizontally long shape. This dimensionality change allows the protrusion to provide sufficient lateral slip prevention capability while reducing the thickness dimension, thereby preventing cracking in the crawler main body and improving durability.
Solution Approach 2:
The patent modifies the geometric parameters of the lateral slip preventing protrusion by making it horizontally long rather than vertically long. This parameter change optimizes the balance between mechanical strength for lateral slip prevention and durability by reducing the thickness dimension that would otherwise cause cracking when the crawler bends.
2Strength
If the lateral slip preventing protrusion and track roller rolling portion are made large in dimension, then the mechanical strength is improved, but the vibration absorption performance decreases due to damage to the elastic material
Solution Approach 1:
By changing the lateral slip preventing protrusion to a horizontally long shape, the patent reduces the thickness dimension while maintaining lateral slip prevention capability. This preserves the elastic material's thickness, allowing it to continue absorbing vibrations effectively without being damaged by excessive bending stresses.
3Stability of the object's composition
If the track roller rolling portions are made narrow in dimension in the crawler width direction, then the lateral slip prevention is improved, but the crawler main body becomes more easily cracked
Solution Approach 1:
The patent resolves this contradiction by making the lateral slip preventing protrusion horizontally long instead of vertically long. This provides sufficient lateral slip prevention through increased horizontal dimension while maintaining adequate thickness to prevent cracking, thus improving durability.
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 design secures mechanical strength, prevents lateral slip, and improves durability and vibration absorption by allowing the crawler to bend without cracking, while reducing material thickness and pressure on the tread sides.
Implementation Method 1
a crawler main body mainly composed of an elastic material
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
To easily secure the strength required to prevent lateral slip between core metals of a crawler main body and to prevent a decrease in durability and vibration absorption performance of the crawler main body. 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.