Serrated Plow Guard with Carbide Inserts for Wear Protection
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Solution Overview
Problem
Existing plow blade edges are prone to excessive wear and damage due to rough terrain and cold weather conditions, leading to frequent repairs and replacements, and existing protective measures are bulky, expensive, and ineffective in preventing breakage and side edge protection.
Innovation Solution
A steel serrated plow guard with carbide inserts is designed for universal mounting on plow blades, featuring a serrated cutting surface, elongated horizontal slotted punch apertures, and longitudinal carbide matrix grooves to provide enhanced protection and durability, reducing wear and breakage while allowing for easy replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If metallic plow edges are used, then the plow can cut through snow and ice, but the edges are excessively damaged and destroyed due to wear and corrosion
Solution Approach 1:
The patent applies composite materials by combining metallic plow edges with protective coatings or overlays (such as carbide, ceramic, or polymer layers) to create a composite structure. This allows the plow to maintain its cutting capability while the protective layer reduces wear and corrosion damage, thereby improving edge durability without sacrificing productivity.
Solution Approach 2:
The patent changes the physical and chemical parameters of the plow edge by applying surface treatments, heat treatment, or material composition modifications. These parameter changes enhance the edge's resistance to wear and corrosion while maintaining its cutting performance, resolving the contradiction between productivity and reliability.
2Strength
If wear shoes are attached to the plow moldboard, then part of the load is supported on the blade, but the shoes are bulky, expensive to manufacture, and difficult to install
Solution Approach 1:
The patent merges the wear protection function with the existing plow moldboard structure by integrating protective elements directly into the moldboard design. This eliminates the need for separate wear shoes, reducing device complexity and installation difficulty while maintaining load support capability through the integrated structure.
Solution Approach 2:
The patent creates a multi-functional component that simultaneously provides structural support, wear protection, and load distribution. By making the moldboard or its components multi-functional, the patent eliminates the need for separate wear shoes, thereby reducing installation complexity and manufacturing costs while maintaining strength.
3Object-affected harmful factors
If cast iron wear shoes are used, then wear protection is provided, but the shoes fracture or break-age when subjected to impacts
Solution Approach 1:
The patent uses composite materials with high impact resistance properties (such as steel, aluminum alloys, or composite constructions) to replace brittle cast iron wear shoes. This provides both wear protection and impact resistance, as the new materials combine hardness for wear resistance with toughness for impact resistance.
Solution Approach 2:
The patent changes the material parameters by selecting materials with appropriate hardness and toughness balances. The new materials are selected to have higher ductility and impact strength than cast iron, allowing them to withstand impacts without fracturing while still providing effective wear protection.
4Object-affected harmful factors
If conventional wear shoes are used, then wear protection is provided, but the shoes do not protect the side edges of the plow from contact with curbs
Solution Approach 1:
The patent segments the protective function into multiple components: front wear shoes for blade protection and side shields or guards for curbside protection. This segmentation allows each component to be optimized for its specific function, providing both blade wear protection and side edge protection simultaneously.
Solution Approach 2:
The patent extends protection from a single-plane (front wear shoes only) to multiple dimensions by adding side-mounted protective elements. This dimensional expansion allows the plow to be protected against curbside contact on the sides while maintaining front blade protection, thereby improving adaptability to various operating conditions.
Data Source
AI summary
A plow guard for a snowplow is provided. The plow guard includes a plow guard body, a plow guard wear surface, and a plurality of protruding teeth. The plow guard wear surface extends along the plow guard body. The plurality of protruding teeth protrude from the plow guard wear surface. Each protruding tooth includes a plurality of peaks and channels to form a serrated cutting surface on the plow guard wear surface.