Rubber Wheel Roller Temperature Sensor Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge in asphalt compaction using rubber-tyred rollers is the unevenness caused by asphalt material sticking to cold wheels, which requires subjective estimation for releasing agents, leading to inefficient use and potential damage to the asphalt layer.
Innovation Solution
Incorporating an optical temperature sensor with multiple measuring points to directly measure the temperature of the wheel tread and ground, allowing for precise control of the sprinkler system, either manually or automatically, to minimize release agent consumption and prevent adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sprinkler system is operated continuously to prevent asphalt adhesion, then the risk of asphalt sticking to wheels is reduced, but the consumption of release agent increases significantly
Solution Approach 1:
The system uses temperature sensors to continuously monitor wheel temperature and provides feedback to the control unit, which automatically adjusts sprinkler operation. This closed-loop control ensures the sprinkler system operates only when thermally required, preventing both adhesion and unnecessary release agent consumption.
Solution Approach 2:
The sprinkler system transitions from static continuous operation to dynamic conditional operation based on real-time temperature measurements. The system adapts its operation mode (on/off or continuous) according to the thermal state of the wheels and ambient conditions, optimizing release agent usage while maintaining adhesion prevention.
2Loss of substance
If the sprinkler system is switched off early to save release agent, then release agent consumption is reduced, but asphalt material may stick to the wheels causing unevenness
Solution Approach 1:
Temperature sensors provide continuous feedback on wheel temperature, allowing the control unit to make precise decisions about sprinkler operation. This ensures the system remains active until wheels reach the thermal threshold where adhesion becomes problematic, guaranteeing asphalt layer uniformity while minimizing release agent usage.
Solution Approach 2:
The system replaces manual operator estimation and subjective judgment with automated optical temperature sensors and electronic control. This objective measurement system eliminates human error in determining when to switch off the sprinkler, ensuring precise control over the transition point and maintaining manufacturing precision.
3Device complexity
If manual estimation is used to control the sprinkler system, then the system remains simple, but the decision to switch off is subjective leading to either waste or damage
Solution Approach 1:
The patent replaces manual visual estimation and subjective operator judgment with automated optical temperature sensors that objectively measure wheel temperature. This substitution provides precise, quantifiable temperature data, eliminating the imprecision inherent in human estimation while maintaining reasonable system simplicity through automated control logic.
Solution Approach 2:
The system enables the rubber-tyred roller to self-regulate its sprinkler operation based on its own thermal state. The temperature sensors monitor the wheels' temperature, and the control unit automatically adjusts sprinkler operation without requiring external human intervention, achieving both precision and operational autonomy.
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
This solution reduces release agent consumption and minimizes the risk of asphalt damage by objectively determining when to activate or deactivate the sprinkler system, ensuring efficient and cost-effective operation.
Implementation Method 1
an optical temperature sensor with a measuring field with at least two measuring points, which is designed and arranged in such a way that it determines the temperature of at least one wheel, in particular the tread of the wheel
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A rubber-tired roller (1) for compacting soil (8), in particular for asphalt compaction, comprising a machine frame (3), a drive motor (4), a chassis driven by the drive motor (4) with a front chassis part (5) and a rear chassis part (6), wherein at least one chassis part (5, 6) comprises at least two wheels (7) arranged side by side with treads (16), at least one sprinkler system (10) for the wheels (7) of the chassis part (5, 6), which is designed to apply a liquid release agent to the treads of the wheels (7), and a control unit (12) for controlling the sprinkler system (10), wherein a temperature sensor (11) is provided, which is designed and arranged in such a way that it determines the temperature of at least one wheel (7), in particular the tread (16) of the wheel (7). Furthermore, a method (18) for controlling a sprinkler system (10) of such a rubber-wheel roller (1) is disclosed.