Cabin Mount Structure With Self-Cleaning Dirt-Scraping Element
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Solution Overview
Problem
Off-road vehicles, particularly those used in construction, forestry, and agriculture, face issues with dirt accumulation and noise due to flexible mountings, which impair suspension travel and create operational hazards, and there is a need to secure the cab to prevent detachment during rollovers.
Innovation Solution
A cabin mounting system with a flexible element attached between the chassis and cabin brackets that scrapes away dirt through passive up-and-down motion, combined with active damping using hydraulic actuators and sensors to maintain safety and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If flexible mountings are used to allow suspension travel, then the cab can move vertically to absorb shocks, but dirt accumulates on the mounting components impairing suspension travel
Solution Approach 1:
The flexible element is configured to automatically clean dirt from the mounting components through the relative movement between the chassis bracket and cabin bracket. The flexible element contacts the chassis bracket surface during cab suspension travel, scraping away dirt and debris without requiring external cleaning systems or maintenance intervention.
Solution Approach 2:
The flexible element is introduced as a separate removable component that can be easily replaced when worn or contaminated. This allows the cleaning function to be separated from the main mounting structure, enabling simple maintenance by removing and replacing the flexible element without disassembling the entire cab mounting system.
2Ease of operation
If flexible mountings are used to allow suspension travel, then the cab can move vertically to absorb shocks, but noise is generated by dirt particles filling gaps between moving components
Solution Approach 1:
The flexible element continuously removes dirt particles from the mounting components during normal suspension operation, preventing dirt from entering and filling the gaps between moving components. This self-cleaning action eliminates the noise source without requiring the system to stop or external intervention.
3Reliability
If the cab is securely connected to prevent detachment during rollovers, then operator safety is maintained, but the mounting system becomes more complex
Solution Approach 1:
The flexible element serves multiple functions simultaneously: it cleans the chassis bracket surface during normal operation, maintains contact to ensure secure connection during rollovers, and provides a simple structural link between the chassis and cabin brackets. This merging of cleaning, securing, and linking functions into a single component avoids the need for separate complex safety 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 effectively prevents dirt buildup, reduces noise, ensures smooth operation, and maintains cab security during rollovers by actively controlling movements and maintaining contact with the flexible element.
Implementation Method 1
The flexible element, which is attached at one end to the cab side and at the other end to the chassis side, moves along with the cab during this up-and-down motion. Through this movement and contact with the chassis surface, the flexible element scrapes away dirt from the cab mounting system
Data Source
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AI summary
The invention relates to a cabin mounting (10) with a chassis bracket (20) comprising a chassis plate (21) designed for attachment to a vehicle chassis, a lower bearing plate (22) attached to the chassis plate (21) with an opening (33) designed for connection to an upper bearing plate (32), a cabin bracket (30) comprising a cabin plate (31) designed for attachment to a vehicle cabin, and an upper bearing plate (32) attached to the cabin plate (31) with a U-shaped structure designed to be movably held in the opening (33) of the lower bearing plate (22) so that the chassis bracket (20) and the cabin bracket (30) are movable relative to each other, wherein at least one flexible element (40) is attached to the chassis plate (21) and to the upper bearing plate (32) such that the flexible element (40) is moved by the relative movement of the chassis bracket (20) and the cabin bracket (30).so that the movement enables surface contact between the flexible element (40) and the chassis mount (20).