Dual Scraper Assembly for Off-Road Vehicle Debris Removal
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Solution Overview
Problem
Off-road vehicle scraper assemblies are ineffective in removing debris during rearward movement due to debris accumulation, which deflects the scraper assembly and reduces its effectiveness.
Innovation Solution
A scraper assembly with dual scraping members positioned on either side of the rotating assembly's centerline, one below and one above, coupled to an arcuate support structure that extends around the rotating assembly, allowing debris removal in both forward and rearward directions, thereby reducing accumulation and deflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single scraping member is positioned below the horizontal centerline to remove debris during forward movement, then debris removal effectiveness during forward movement is improved, but debris accumulates on the scraper assembly during rearward movement causing downward deflection and reducing scraping effectiveness
Solution Approach 1:
The scraper assembly is segmented into multiple scraping members positioned at different locations: a first scraping member below the horizontal centerline for forward movement debris removal, and a second scraping member above the horizontal centerline for rearward movement debris removal. This segmentation allows each scraping member to address specific debris accumulation problems during different vehicle movement directions, preventing the downward deflection caused by accumulated debris and maintaining consistent scraping effectiveness throughout operation.
2Ease of operation
If the scraper assembly is positioned to engage the rotating assembly during forward movement, then debris removal during forward movement is effective, but the scraper assembly becomes ineffective during rearward movement
Solution Approach 1:
The scraper assembly employs asymmetric positioning of scraping members relative to the rotating assembly. The first scraping member is positioned below the horizontal centerline to effectively scrape during forward movement, while the second scraping member is positioned above the horizontal centerline to effectively scrape during rearward movement. This asymmetric configuration ensures that at least one scraping member is optimally positioned to remove debris regardless of the vehicle's movement direction, thereby maintaining operational effectiveness and versatility in both forward and rearward operations.
Data Source
AI summary
A scraper assembly includes a first scraping member configured to be positioned below a horizontal centerline of a rotating assembly and rearward of a vertical centerline of the rotating assembly. The first scraping member is configured to remove debris from the rotating assembly at least while the rotating assembly is rotating in a first direction. The scraper assembly also includes a second scraping member configured to be positioned above the horizontal centerline of the rotating assembly and forward of the vertical centerline of the rotating assembly. The second scraping member is configured to remove debris from the rotating assembly at least while the rotating assembly is rotating in a second direction, opposite the first direction. In addition, the scraper assembly includes a support structure configured to couple to a frame of an off-road vehicle, and the first and second scraping members are coupled to the support structure.