Elastic Traction Belt Recess Layout Without Severing Tension Members
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Solution Overview
Problem
Existing traction devices suffer from reduced tensile strength and increased manufacturing costs due to the severing of tension members during the creation of recesses for carriers, leading to compromised functionality and higher production costs.
Innovation Solution
The tension members are arranged to avoid severing by guiding them around recesses, maintaining their integrity, and recesses are formed during the geometry creation of the belt body in the extrusion process, eliminating subsequent processing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If recesses are created by subsequent mechanical processing (punching) after the traction element is completed, then carriers can be attached to the belt body, but the tension members are severed and tensile strength is reduced
Solution Approach 1:
The recesses are formed in the belt body during the extrusion process before the traction element is fully cured and before any mechanical processing occurs. This preliminary formation of recesses prevents subsequent machining operations that would sever the tension members, thereby maintaining tensile strength while enabling carrier attachment capability.
2Adaptability or versatility
If recesses are created by subsequent mechanical processing, then carriers can be attached to the belt body, but manufacturing costs increase due to additional processing steps
Solution Approach 1:
The formation of recesses is merged with the extrusion process that creates the belt body geometry. By integrating recess formation into the primary manufacturing process rather than adding a separate mechanical processing step, the invention eliminates additional manufacturing costs while maintaining the capability to attach carriers.
3Strength
If tension members are arranged to avoid severing by guiding them around recesses, then tensile strength is maintained, but the arrangement complexity increases
Solution Approach 1:
The tension members are positioned and guided around the recesses during the extrusion process while the material is still in a formable state. This preliminary arrangement ensures that when the material cures, the tension members are already optimally positioned to avoid severing, maintaining tensile strength without requiring complex post-processing adjustments.
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 maintains the functionality and integrity of tension members, enhancing tensile strength and reducing manufacturing costs by ensuring the tension members remain intact, thus improving the load-bearing capacity and extending the service life of the traction device.
Implementation Method 1
The production of such traction elements is usually carried out in a rotary vulcanization device. Accordingly, to produce an elastic traction element, a base material is first extruded. During extrusion, the tension members flow into the extruded, still warm and relatively viscous material in an outlet nozzle. The resulting, still viscous material with the tension members is formed into the finished traction element between a belt and a cylindrical forming wheel, with heat being removed, with the belt wrapping around the forming wheel under pressure
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to an elastic traction means (1) having at least one belt body (2) and at least one carcass (7a, 7b, 7c, 7d), which is embedded in the belt body (2), the at least one carcass (7a, 7b, 7c, 7d) running in the belt body (2) in the longitudinal direction (30) of the traction means (1), and the belt body (2) having at least one cut-out (3, 4). According to the invention, the at least one carcass (7a, 7b, 7c, 7d) is arranged in the belt body (2) such that none of the carcasses (7a, 7b, 7c, 7d) is severed by the at least one cut-out (3, 4). The invention also relates to a method for producing this traction means.