Segmented Snowplow Cutting Edge with Compression Absorption
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Solution Overview
Problem
Existing snowplow blades struggle to effectively contour to uneven ground surfaces, leading to damage and inefficiency in debris removal, as current mechanisms fail to adequately adapt to varying terrain and obstacles.
Innovation Solution
A cutting edge system featuring independently movable blade segments with a compression member and retainer plate, allowing the cutting edge to adapt to ground contours by sliding and pivoting, and a trip edge mechanism that pivots rearward upon impact to protect the blade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed cutting edge is used on the snowplow blade, then the structure is simple and easy to manufacture, but the blade cannot adapt to uneven ground surfaces and strikes obstructions causing damage
Solution Approach 1:
The cutting edge is divided into multiple independently movable blade segments that can move relative to each other and to the moldboard. Each segment can independently adapt to ground contours while maintaining overall cutting edge functionality.
Solution Approach 2:
The blade segments are made dynamically movable rather than fixed, allowing them to pivot and slide on rails to follow ground contours. This dynamic capability enables adaptation to uneven surfaces while maintaining structural integrity.
2Adaptability or versatility
If individually movable blade segments are used to follow ground contours, then the adaptability to uneven surfaces is improved, but the complexity of the mechanism increases and reliability decreases due to more moving parts
Solution Approach 1:
A trip edge mechanism is positioned ahead of the blade segments to detect and respond to obstructions before they reach the cutting edge. When the trip edge strikes an obstruction, it triggers a response that lifts or repositions the blade segments, preventing direct impact and potential damage.
Solution Approach 2:
The trip edge acts as an intermediary element between the obstruction and the blade segments. It detects obstructions first and initiates a protective response, serving as a mediator that protects the more critical blade segments from direct damage.
3Object-affected harmful factors
If the cutting edge is designed to pivot backward upon impact to protect the blade, then the protection against obstructions is improved, but the complexity of the mechanism increases
Solution Approach 1:
The protection mechanism is segmented into independent blade segments that can individually respond to impacts. Each segment can pivot or lift independently when triggered by the trip edge, distributing the protection function across multiple simple components rather than one complex mechanism.
Solution Approach 2:
The blade segments are designed to automatically respond to trip edge activation through their own mechanical connection. When the trip edge strikes an obstruction, the blade segments self-actuate to pivot or lift without requiring external control systems or complex actuation mechanisms.
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 system enhances debris removal efficiency by allowing the cutting edge to follow uneven surfaces and absorb impact, reducing damage and improving operational reliability.
Implementation Method 1
a compression member configured to be retained in between the uppermost edge of the intermediate pocket portion and an engaging surface of the backing plate, the compression member being configured to absorb upward movement of the blade segment when the cutting edge engages the ground surface
Data Source
AI summary
A cutting edge system for a snowplow is described herein. The system includes a backing plate coupled to a bottom portion of a moldboard of the snowplow and a plurality of cutting edge segments mounted to a front surface of the backing plate. Each cutting edge segment includes a blade segment slidably mounted to the front surface of the backing plate. Each blade segment has a lower portion configured to engage a ground surface, an upper portion having an uppermost edge opposed to the cutting edge, and two upwardly extending lobes spaced apart from each other to define an intermediate portion therebetween. Each cutting edge segment also includes a compression member configured to be retained in between the uppermost edge of the intermediate portion and an engaging surface of the backing plate. The compression member is configured to absorb upward movement of the blade segment when the cutting edge engages the ground surface.