Segmented Side Walls for Weather Protection on Milling Machines
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Solution Overview
Problem
Existing weather protection devices for road construction machines, such as ground milling machines, are either too costly or cumbersome, failing to provide sufficient operating comfort for operators in challenging weather conditions while also complicating transport and maintenance.
Innovation Solution
The weather protection device is designed with side walls composed of upper and lower parts that are adjustable between a weather protection position and a stowed position. In the weather protection position, the side walls form a continuous barrier, while in the stowed position, they are disassembled to reduce the machine's external dimensions, allowing for more compact transport and easier maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a complete driver's cab with interlocking wall elements is used to provide full weather protection, then operator protection from wind, rain, and temperature is improved, but device complexity and cost increase significantly
Solution Approach 1:
The side walls of the weather protection device are divided into upper and lower parts that can be independently positioned. The lower side wall part remains fixed while the upper side wall part can be adjusted between a working position (providing full protection) and a stowed position (reducing complexity). This segmentation allows the system to provide complete weather protection when needed while reducing structural complexity during transport or when full protection is not required.
2Ease of operation
If a complete driver's cab is used to ensure full weather protection, then operating comfort in challenging weather is improved, but the machine's external dimensions increase making transport difficult
Solution Approach 1:
The upper side wall part is designed to be dynamically adjustable between a working position that provides full weather protection and a stowed position that reduces the machine's external dimensions. This dynamic configuration allows the weather protection device to adapt its size based on operational needs, providing complete protection during operation while minimizing transport dimensions when the machine is being moved.
3Object-affected harmful factors
If a rigid enclosed driver's cab is used to provide weather protection, then protection from wind and rain is improved, but adjustment between working and stowed positions requires increased effort
Solution Approach 1:
By dividing the side wall into upper and lower parts, the adjustment mechanism only needs to move the upper portion while the lower portion remains fixed. This segmentation reduces the complexity and effort required for adjustment compared to moving an entire rigid cab structure, while still providing complete weather protection when the upper part is in the working position.
Data Source
Figure 1A~1B
Figure 2A~2B
AI summary
Self-propelled road construction machine (1), in particular a ground milling machine, comprising a drive unit (2), a machine frame (3), front and rear driving devices (4) connected to the machine frame (3), and a driver's platform (5) with a weather protection device (6), wherein the weather protection device (6) comprises a roof wall (7), a front wall (8), a rear wall (9) and two opposing side walls (10), and the side walls (10) each comprise an upper side wall part (11) and a lower side wall part (12) which together form a side wall (10) in the weather protection position, and in that the upper side wall part (11) and the lower side wall part (12) of a side wall (10) are displaced relative to one another in the stowed position compared to their relative position in the weather protection position.