Fiber-Reinforced Track Roller Cooling for Bandage Heat Control
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Solution Overview
Problem
Military tracked vehicles using fiber-reinforced plastic materials for rollers face heat dissipation issues, leading to potential damage or detachment of roller tires due to inadequate heat dissipation during flexing, which is not addressed by existing technologies.
Innovation Solution
A track roller design incorporating a fiber-reinforced plastic material body with an integrated cooling device featuring a fan wheel and cooling air nozzles to actively dissipate heat from the roller bandage, utilizing a planetary gear to enhance cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If fiber-reinforced plastic materials are used for the roller body, then weight is reduced, but heat dissipation capability deteriorates
Solution Approach 1:
The roller body uses fiber-reinforced plastic material (composite material) to achieve weight reduction while maintaining structural strength. The composite material structure allows the roller to be lightweight yet durable, resolving the contradiction between weight reduction and heat dissipation by enabling the integration of active cooling systems.
Solution Approach 2:
A cooling device with fan wheel and cooling air nozzles is introduced as an intermediary system to actively remove heat from the roller bandage. The cooling air flows through channels in the roller body and exits through nozzles to directly cool the bandage, mediating the heat dissipation problem that arises from using lightweight fiber-reinforced plastic materials.
2Strength
If roller bands are used to prevent track contact, then wear is reduced, but excessive heating occurs during flexing
Solution Approach 1:
The cooling device acts as an intermediary between the heat-generating roller bandage and the external environment. Cooling air is directed through the roller body and onto the bandage surface, actively removing heat generated during flexing operations while preserving the bandage's wear-resistant properties.
Solution Approach 2:
A pneumatic cooling system is implemented where compressed or ambient air is forced through cooling channels in the roller body and discharged through nozzles onto the roller bandage. This pneumatic flow removes heat from the bandage during operation, preventing excessive heating while maintaining the bandage's protective function.
3Temperature
If metallic materials are used for rollers, then heat dissipation is improved, but weight increases
Solution Approach 1:
The roller body is constructed from fiber-reinforced plastic composite materials instead of solid metal, achieving weight reduction while maintaining sufficient structural strength. The composite structure is designed with integrated cooling channels that enable active heat management, resolving the contradiction between using lightweight materials and maintaining heat dissipation capability.
Solution Approach 2:
Rather than relying on the roller material itself for passive heat conduction (as with metals), an active cooling system with fan wheel and air nozzles is introduced as an intermediary mechanism. This system actively removes heat from the roller bandage, compensating for the lower thermal conductivity of fiber-reinforced plastic materials.
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 solution effectively prevents excessive heating of the roller bandage, preventing damage and detachment, enabling weight savings and allowing the use of lightweight rubber tracks even in vehicles over 50 tons, resulting in significant weight reduction.
Implementation Method 1
The cooling device has a fan wheel for actively cooling the track roller bandage during operation of the track roller
Implementation Method 2
The roller body has cooling air nozzles for supplying cooling air to the roller bandage
Implementation Method 3
If metallic materials are used for the rollers, this heat can be dissipated from the roller bands via thermal conduction
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A track roller (12, 12A, 12B, 12C, 12D) for a military tracked vehicle (1), comprising a track roller body (21) which is made at least partially of a fiber-reinforced plastic material, a track roller bandage (34, 35) surrounding the track roller body (21), and a cooling device (43) for cooling the track roller bandage (34, 35) during operation of the track roller (12, 12A, 12B, 12C, 12D).