Crawler Barriers Prevent Impurity Adhesion on Drive Wheels
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Solution Overview
Problem
Existing crawler and snow sweeping equipment face issues with impurities like rain, snow, sand, and silt adhering to the pulley's outer ring, increasing friction and leading to frequent overcurrent in the traveling motor.
Innovation Solution
The proposed solution involves a crawler design with first and second barriers arranged between the driving and driven wheels, respectively. These barriers are positioned to prevent impurities from adhering to the wheels, improving their fluency and stability during rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the crawler operates without barriers, then the structure is simpler, but impurities adhere to the pulley increasing friction and causing motor overcurrent
Solution Approach 1:
The patent introduces barriers as intermediary components between the pulley and impurities. These barriers intercept rain, snow, sand, and silt before they can adhere to the pulley surface, thereby preventing the harmful accumulation that leads to increased friction and motor overcurrent while maintaining a relatively simple overall structure.
Solution Approach 2:
The barriers are positioned to provide preliminary protection against impurity accumulation. By placing the barriers upstream in the impurity deposition path, the system prevents the problem of pulley contamination before it occurs, rather than attempting to remove impurities after they have adhered to the pulley.
2Ease of operation
If barriers are added to block impurities, then the pulley fluency improves, but the device complexity increases
Solution Approach 1:
The barriers serve as intermediary elements that improve pulley fluency by preventing impurity accumulation. The simple geometric design of the barriers minimizes the added complexity while maximizing their protective function, allowing the pulley to rotate smoothly without the drag of adhered contaminants.
3Reliability
If the distance between barrier and driving wheel is optimized, then blocking efficiency improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent makes the barrier position adjustable rather than fixed, allowing the distance between the barrier and driving wheel to be optimized for blocking efficiency. This dynamic adjustment capability enables the system to achieve optimal impurity interception while accommodating variations in operating conditions, and the adjustment mechanism is designed to be simple enough to maintain reasonable manufacturing tolerances.
Data Source
AI summary
Provided are a crawler and a snow sweeping equipment. The crawler includes a crawler body, driving wheel, driven wheel, first frame body, second frame body, first barrier and second barrier. The driving wheel and the driven wheel are respectively arranged at two ends of the inner side of the crawler body, so that the driving wheel and driven wheel are connected through the crawler body. The first frame body and second frame body are respectively arranged at two opposite sides of the axis direction of the driving wheel, so that the driving wheel and driven wheel are connected. The first barrier and second barrier are both arranged between the driving wheel and driven wheel, the distance between the first barrier and the driving wheel is L1, and 0<L1<5 mm; the distance between the second barrier and the driven wheel is L2, and 0<L2<5 mm.