Road Finishing Machine Sensor Retainer with Segmented Beam
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Solution Overview
Problem
Conventional road finishing machine measuring beam retainers are difficult and time-consuming to assemble, require significant force to position sensors, are expensive, and lack flexibility for use with different machine types.
Innovation Solution
A retainer device with a height-adjustable screed, a supporting arm module, a link that can be moved along the arm, and a sensor module with a mounting plate that can be easily secured and positioned, allowing for ergonomic assembly and multiple mounting options, including inclined orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional measuring beam retainers are used, then sensors can be positioned for leveling control, but assembly is difficult and time-consuming requiring several persons and good skills
Solution Approach 1:
The measuring beam device is divided into separate segments: a central beam and multiple extension beams that can be independently attached and positioned. This segmentation allows each component to be assembled separately and then connected, significantly reducing assembly complexity and time while maintaining the overall functionality of sensor positioning.
Solution Approach 2:
The extension beams are extracted as separate, detachable components from the central beam structure. This allows the extension beams to be removed, transported, and reattached as needed, enabling single-person assembly and disassembly while preserving the complete measuring capability when all components are assembled.
2Adaptability or versatility
If telescopic measuring beams are used, then sensors can be positioned at desired points, but the device has high weight requiring high expenditure of force to orient horizontally
Solution Approach 1:
The heavy telescopic beam is segmented into a central beam and separate extension beams. This segmentation reduces the weight that must be manipulated at any one time, allowing operators to easily attach and position individual extension beams without requiring high physical force, while maintaining the full positioning flexibility when assembled.
3Measurement precision
If the complete measuring beam device is moved to position sensors, then sensors can be positioned above ground, but positioning becomes difficult and time-consuming
Solution Approach 1:
Instead of moving the entire measuring beam device to position sensors, the system uses a stationary central beam with detachable extension beams. Only the lightweight extension beams need to be attached or detached to reposition sensors, dramatically reducing positioning time while maintaining precise positioning capability through the adjustable extension beam configurations.
4Ease of manufacture
If a fixed measuring beam is used, then assembly is simple, but the device cannot be employed at different road finishing machine models lacking flexibility
Solution Approach 1:
The measuring beam device is designed as a universal system with a standardized central beam that can accept various extension beam configurations. This universal design allows the same basic device to be adapted to different road finishing machine models by simply changing or reconfiguring the extension beams, maintaining assembly simplicity while achieving broad compatibility.
Data Source
AI summary
A road finishing machine comprises a height-adjustable screed mounted to a chassis of the road finishing machine for laying a paving layer, and at least one retainer device for supporting and positioning at least one sensor unit. The retainer device comprises at least one supporting arm module, at least one sensor module including the sensor unit, and at least one link that may be movably positioned at the supporting arm module to which the sensor module may be mounted and which mounts the sensor module to the supporting arm module. Furthermore, the sensor module comprises a retainer with a mounting plate which is releasably mounted to the link.