Upper Road Wheel Scraper Layout for Mud Removal in Crawler Vehicles
Solution Overview
Problem
Existing crawler-type vehicles face inefficiencies in scraping off mud adhering to the upper road wheel, particularly between the claws of the scraper member, leading to hindered rotation and potential damage.
Innovation Solution
A crawler-type vehicle design featuring a pair of scraper members with claws positioned asymmetrically and attachably/detachably fixed to the crawler frame, allowing efficient mud removal by ensuring each claw targets different parts of the upper road wheel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a scraper member with claws in a triangular shape is used to scrape off mud, then the structure is simple, but the mud located between the claws cannot be scraped off effectively
Solution Approach 1:
The patent applies asymmetry by positioning the claws of the left and right scraper members at different right-left directional positions. Specifically, the right-left directional position of the tip of a claw on one scraper member is made different from the right-left directional position of the tip of a claw on the other scraper member. This asymmetric arrangement ensures that claws from both scraper members can scrape mud from different areas of the upper road wheel, including areas between the claws, thereby improving mud scraping efficiency while maintaining structural simplicity
2Reliability
If mud accumulates around the upper road wheel, then the vehicle can operate normally, but the rotation of the upper road wheel is hindered and damage may occur
Solution Approach 1:
The patent applies preliminary action by proactively removing mud from the upper road wheel before it can accumulate to harmful levels. The scraper members with asymmetrically positioned claws continuously scrape the surface of the upper road wheel during vehicle operation, preventing mud buildup that would otherwise hinder rotation or cause damage. This preventive approach maintains reliable vehicle operation by eliminating the harmful effect of mud accumulation before it occurs
Data Source
AI summary
To provide a crawler-type vehicle capable of efficiently scraping off mud from an upper road wheel. A pair of scraper members are disposed on one side in the front-rear direction and on other side in the front-rear direction of an upper road wheel. Each scraper member is formed with a claw that protrudes toward the upper road wheel. A right-left directional position of the tip of the claw of one scraper member and a right-left directional position of the tip of the claw of the other scraper member are different from each other.