Rotatable Cab Frame Sealing for Dust and Maintenance Access
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Solution Overview
Problem
Existing work vehicles lack an efficient mechanism to switch between closed and open states of the cabin, which affects dust protection and maintenance accessibility.
Innovation Solution
A work vehicle design featuring a rotatable cab frame connected to the vehicle body frame, with a seal rubber mechanism to maintain dust exclusion when the cabin is in the closed state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the cab frame is kept in a closed state to prevent dust entry, then dust protection is improved, but maintenance accessibility deteriorates
Solution Approach 1:
The cab frame is designed to be dynamically changeable between closed and open states through rotation about a rotational shaft. This allows the system to adapt its configuration based on operational needs - closed for dust protection during operation, open for maintenance accessibility, resolving the contradiction between these two requirements.
2Ease of operation
If the cab frame is made rotatable to enable state switching, then maintenance accessibility is improved, but device complexity increases
Solution Approach 1:
The cab frame is separated from the vehicle body frame, allowing independent rotation and positioning. This segmentation enables the cab frame to function as an independent module that can be rotated to different positions (closed or open state) without complicating the overall vehicle structure, thus improving state switching capability while controlling complexity.
3Reliability
If the engine room is covered to protect components, then component protection is improved, but maintenance accessibility deteriorates
Solution Approach 1:
The engine room accessibility is dynamically controlled through the cab frame position. When the cab frame rotates to the open state, the engine room becomes accessible for maintenance while remaining physically protected by the vehicle body structure. This dynamic configuration allows the system to provide both component protection and maintenance accessibility as needed.
Data Source
AI summary
A work vehicle includes a vehicle body frame having a vehicle body front part and a vehicle body rear part, and a cab frame connected to the vehicle body frame and being rotatable about a rotational shaft provided on the vehicle body rear part to be mounted on the vehicle body front part when the cab frame is in a closed state and to be separated from the vehicle body front part when the cab frame is in an open state. The vehicle body rear part has a support frame supporting the rotational shaft and includes a contact plate configured to abut against the cab frame in the closed state, and an engine room to be exposed between the vehicle body front part and the cab frame in the open state. The cab frame has a seal rubber configured to abut against the contact plate in the closed state.