Crawler Track Shoe Core Metal Indentation Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for manufacturing crawler track shoe core metals result in raised portions at through-hole edges, necessitating additional chamfering processes, increasing costs and complexity.
Innovation Solution
The crawler track shoe core metal design features a cutout portion with a through-hole and a raised portion that projects inward, eliminating the need for chamfering by ensuring the raised portion does not exceed the moving link side face, and a manufacturing method involving indentation forming and punching within the indentation range to prevent edge projections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If punching is performed to create through-holes without remaining indentations, then the through-holes are formed cleanly, but positional misalignment causes raised portions to project from edge portions requiring additional chamfering processes
Solution Approach 1:
The patent applies preliminary action by forming an indentation at the back face before punching the through-hole. This indentation serves as a guide that ensures the punch aligns correctly, preventing raised portions from projecting beyond the front face. The indentation is created in advance to establish the precise punching position, thereby eliminating the need for subsequent chamfering operations to remove problematic raised portions.
2Manufacturing precision
If chamfering is performed to remove raised portions from through-hole edges, then the raised portions are eliminated, but the number of processes and cost increase
Solution Approach 1:
The patent converts the potentially harmful raised portions into a beneficial feature by controlling their height to not exceed the front face. Instead of viewing raised portions as defects requiring removal, the invention accepts them as long as they remain within the indentation boundaries. This approach transforms what would normally require corrective chamfering into an acceptable outcome that maintains manufacturing efficiency.
3Reliability
If the raised portion projects out from the face on the moving link side, then attachment to the moving link is problematic, but controlling the raised portion height eliminates this issue
Solution Approach 1:
The patent applies parameter changes by controlling the height parameter of the raised portion. Specifically, the raised portion is designed to have a height that does not exceed the front face of the core metal. This parameter control ensures that the raised portions do not interfere with attachment to the moving link, maintaining reliability while avoiding additional manufacturing steps like chamfering.
Data Source
AI summary
A crawler track shoe core metal is plate shaped and is clamped and fixed by a fixing member to a moving link provided at a travelling body. The crawler track shoe core metal includes a cutout portion, a through-hole, and a raised portion. The cutout portion is formed indented in a face at the moving link side. The through-hole pierces through inside the cutout portion in a plate thickness direction and is inserted with the fixing member. The raised portion projects out from a through-hole peripheral edge of the cutout portion toward the moving link side, and has a projecting end with a height that does not reach the face at the moving link side.