Conveyor Nose Bar Heat Dissipation via Segmented Rod Contact
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Solution Overview
Problem
Conveyor belt systems experience heat-related damage and uneven product arrangement due to high operational speeds, particularly at interfaces between conveyor belts, where sharper noses lead to increased heat generation and mechanical stress on smaller diameter shafts or drums.
Innovation Solution
A nose bar design featuring a gutter with a circle segment-shaped cross-section for improved heat transfer, using a metal frame with a bearing material lining to enhance thermal management and mechanical support, and potentially textured sections for increased grip and reduced friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the diameter of the drum or shaft at the nose of the conveyor is increased, then the gap at interfaces between conveyor belts is reduced, but the heat generation increases due to larger contact surface and slower rotation speed
Solution Approach 1:
The contact surface between the rod and frame is segmented into multiple discrete contact points along the length of the rod. This segmentation allows heat to be dissipated at multiple locations rather than concentrated at a single point, reducing overall heat generation while maintaining the necessary mechanical support and sharp nose geometry.
Solution Approach 2:
A bearing material is introduced as an intermediary layer between the rod and the frame. This bearing material has properties that reduce friction and heat generation while still providing the necessary support. The bearing material acts as a mediator that allows the rod to maintain contact with the frame without direct metal-to-metal friction that would generate excessive heat.
2Shape
If the diameter of the drum or shaft at the nose of the conveyor is decreased, then the turn of the conveyor belt becomes sharper, but the heat generation increases due to faster rotation speed
Solution Approach 1:
The contact surface is segmented into multiple discrete contact points along the length of the rod, allowing heat to be dissipated at multiple locations. This enables the use of smaller diameter rods (sharper noses) without excessive heat generation, as the segmented contact points reduce concentrated thermal loading.
Solution Approach 2:
The invention changes the parameter of contact surface geometry from a continuous or few-point contact (as in traditional shafts) to multiple discrete contact points along the rod length. This parameter change allows smaller rod diameters to be used while controlling heat generation through the distributed contact pattern.
3Temperature
If the contact surface between the rod and frame is increased, then heat transfer from the rod to the frame is improved, but the mechanical support and stability may be compromised
Solution Approach 1:
The contact interface is segmented into multiple discrete contact points distributed along the length of the rod. This segmentation provides both thermal management (heat dissipation at multiple points) and mechanical stability (multiple support points distributing loads). The segmented structure achieves both heat transfer improvement and mechanical support simultaneously.
Solution Approach 2:
The contact surface is extended from a single-plane contact to a multi-dimensional arrangement of contact points distributed along the length of the rod. This dimensional extension allows heat transfer to occur across multiple locations while maintaining mechanical stability through the distributed support structure.
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 reduces heat-related damage to conveyor components by increasing heat transfer surfaces, minimizing mechanical deformation, and preventing uneven wear, while maintaining efficient belt operation and product handling.
Implementation Method 1
at least the surface of the gutter of the frame part and/or at least the circular surface of the rod is provided with a bearing material such as a food grade bearing material
Implementation Method 2
The larger surface allows heat transfer from the rod to the frame
Implementation Method 3
the rod comprises sections with a larger diameter, wherein the frame part has grooves that are deeper than the sections with the larger diameter. These sections are provided for increasing the grip of the conveyor belt on the rod
Data Source
Figure 1a~3b
Figure 4a~5b
Figure 6~7
AI summary
A nose bar (11) for a conveyor belt-guide (16), comprising a frame part (15), having a head end comprising a gutter (17) with a circle segment shaped cross section, a rod (12) with a circular cross section, having a radius equal to the circle segment of the cross section wherein the circular surface of the rod is arranged directly against the gutter of the frame part. A conveyor with at least such a nose bar and a production line, in particular for dough products, comprising such a conveyor is considered.