Offset Abutment Baler Press Belt Carcass Design
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Solution Overview
Problem
Existing continuous annular baler press belts experience reduced durability due to bending cycles and peak stresses at the connecting region, leading to insufficient dynamic endurance strength and material inefficiencies.
Innovation Solution
The carcass is composed of at least two individual fabric web layers with abutment locations offset over the periphery, eliminating concentrated weakening at a single connection point and allowing for different fabric types to distribute tensile loads, with optional covering strips and vulcanization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the carcass is formed by winding a single fabric web multiple times to create layers, then the belt achieves continuous fabric reinforcement, but the connecting region experiences concentrated bending loads and peak stresses that reduce durability
Solution Approach 1:
The carcass is segmented into multiple individual fabric web layers (at least two layers) instead of using a single wound fabric web. Each layer has its own abutment location, distributing the connection points around the periphery. This segmentation eliminates the concentrated stress at a single connecting region while maintaining continuous fabric reinforcement throughout the belt structure.
2Ease of manufacture
If the fabric web is wound with few layers (2-3 windings), then the manufacturing is simpler, but the connecting region experiences increased notch sensitivity and insufficient dynamic endurance strength
Solution Approach 1:
Instead of winding the fabric web only 2-3 times which creates thick connecting regions, the invention uses multiple separate fabric web layers (at least two) with offset abutment locations. This approach maintains manufacturing simplicity while distributing the connection points to reduce notch sensitivity and improve dynamic endurance strength.
Solution Approach 2:
The abutment locations of individual fabric web layers are arranged offset from one another around the periphery of the belt. This creates local quality variation in the connecting regions, ensuring that no single location experiences concentrated bending loads and peak stresses, thereby improving overall dynamic endurance strength.
3Ease of manufacture
If the fabric web ends are connected with overlapping winding, then the connection is simpler, but the connecting region experiences additional stretching and bending loads that reduce service life
Solution Approach 1:
The invention uses multiple individual fabric web layers with non-overlapping abutment locations arranged offset around the periphery. Each layer's ends abut one another without overlapping, distributing the connections evenly. This maintains manufacturing simplicity while eliminating the additional stretching and bending loads that would occur with overlapping winding connections.
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 design enhances load stability and service life while reducing material requirements and heat generation, achieving a more cost-effective and durable baler press belt.
Implementation Method 1
After the lower and the upper rubber covering sheets have been subsequently applied to the continuous fabric winding, this being the fabric core, the continuous belt blank which is produced or assembled is vulcanized. In this context, the rubber covering sheets are connected to the wound fabric core
Data Source
AI summary
A rubber continuous annular baler press belt is made of at least one of rubber and rubber-like materials. The press belt includes an embedded core of a reinforcing fabric and has at least two individual superimposed fabric layers (6, 7, 8). The ends of each fabric layer mutually abut and do not overlap each other at the abutment location. The abutment locations (11, 13, 15) are arranged over the periphery of the press belt so as to be offset from each other.