Conveyor Belt Side Profile Bonding for Crack-Resistant Flexing
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Solution Overview
Problem
Conventional conveyor belts experience premature failure due to cracks in side profiles caused by radial stretching and material fatigue, leading to costly repairs and downtime, especially in filter belts used for liquid drainage.
Innovation Solution
A conveyor belt design featuring an adhesive layer with a textile fabric embedded between the side profile and the elastomeric base element, where the textile fabric's fibers are oriented obliquely to absorb loads in both longitudinal and transverse directions, reducing stress on the base element and preventing crack formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If side profiles are attached to the elastomeric base belt using a conventional adhesive layer, then the side profiles are secured to prevent material overflow, but the adhesive layer is subject to severe stress from radial stretching and material fatigue, leading to cracks and premature failure
Solution Approach 1:
The adhesive layer is designed as a composite material consisting of a plasticizer-poor rubber base (low elongation at break) combined with a textile fabric reinforcement. This composite structure provides both adhesion and tear resistance, preventing crack propagation while maintaining flexibility under radial stretching conditions.
Solution Approach 2:
The invention changes the physical and chemical parameters of the adhesive layer by controlling the elongation at break to be between 5% and 15%, and specifying the thickness between 1.5 mm and 3 mm. These parameter optimizations ensure the adhesive layer can withstand the severe stress from radial stretching without developing cracks that would compromise the side profile attachment.
2Strength
If the adhesive layer is made thicker to improve crack resistance, then durability increases, but the flexibility and ability to accommodate radial stretching during deflection over rollers decreases
Solution Approach 1:
The composite adhesive layer combines a relatively thin rubber base (1.5-3 mm) with embedded textile fabric reinforcement. This allows the layer to maintain flexibility for radial stretching while the textile provides crack resistance, resolving the contradiction between thickness and flexibility.
Solution Approach 2:
By optimizing the elongation at break parameter to 5-15% and controlling the thickness to 1.5-3 mm, the adhesive layer achieves a balance between strength and flexibility, allowing it to accommodate radial stretching during deflection while resisting crack formation under material fatigue conditions.
3Ease of manufacture
If conventional adhesive materials are used, then the application process is simple, but the adhesive layer cannot withstand the severe stress from stretching and deflection, resulting in frequent repairs and downtime
Solution Approach 1:
The adhesive layer uses a composite construction with a plasticizer-poor rubber base and textile fabric reinforcement, which can be applied using conventional adhesive application methods. The textile reinforcement is embedded in the rubber matrix, maintaining ease of manufacture while dramatically improving resistance to material fatigue and wear from conveyed material.
Solution Approach 2:
The invention specifies particular parameter ranges for the adhesive layer including elongation at break (5-15%), thickness (1.5-3 mm), and composition (plasticizer-poor rubber with textile reinforcement). These parameter changes enable the adhesive to withstand severe stress from stretching and deflection while maintaining compatibility with standard manufacturing processes.
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
Enhances durability and longevity of the conveyor belt by absorbing loads in multiple directions, minimizing material fatigue and extending the service life, thereby reducing maintenance costs and improving system availability.
Implementation Method 1
the textile fabric's fibers are oriented obliquely to absorb loads in both longitudinal and transverse directions, reducing stress on the base element
Implementation Method 2
an adhesive layer with a textile fabric embedded between the side profile and the elastomeric base element
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a flat elastomer element (1), preferably a conveyor belt (1) or a belt (1), having an elastomer base element (2) which can be or is endlessly closed in a longitudinal direction (X), and having at least one lateral profile (4) extending in the longitudinal direction, which is at least partly arranged on the upper side (21) of the elastomer base element (2), wherein an adhesive layer (3) is arranged between an underside (40) of the lateral profile (4) and the upper side (21) of the elastomer base element (2). The flat elastomer element (1) is characterized in that the adhesive layer (3) has a least one textile sheet-like structure (30) having at least one fibre (30b), which is at least partly, preferably completely, aligned in a direction both unequal to the longitudinal direction (X) of the flat elastomer element (1) and also unequal to the transverse direction (Y) of the flat elastomer element (1).