Helical Belt Assembly for Mounting Through Structural Constraints
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Solution Overview
Problem
Conventional belt drive systems face challenges when mounting a continuous, unending belt onto sprockets where one sprocket is within a structural constraint, as it requires mechanical alteration or cutting the belt, compromising the integrity and strength of either the constraint or the belt.
Innovation Solution
A helical belt assembly with through holes in the belt teeth, allowing transverse compression devices to align and compress the belt, forming a continuous loop that passes through the constraint without cutting or altering the belt or structure, using various compression devices like bolts, pins, and lacing solutions to secure the belt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a continuous, unending drive belt is used, then the belt's integrity and mechanical properties are maintained, but the belt cannot be mounted onto sprockets within structural constraints without cutting or mechanical alteration
Solution Approach 1:
The drive belt is divided into multiple modular belt segments that can be separately assembled. Each segment contains belt teeth and connection features, allowing the belt to be constructed in sections rather than requiring a single continuous piece. This segmentation enables mounting within structural constraints while maintaining the functional integrity of the drive system.
Solution Approach 2:
The belt segments are designed to nest together through interlocking connection features. Each segment contains nested components including inner and outer belts with matching teeth patterns, allowing compact assembly that fits within confined mounting spaces while forming a complete functional belt when assembled.
2Ease of operation
If the drive belt is cut to enable mounting, then the belt can be installed within structural constraints, but the belt's integrity and mechanical properties are compromised
Solution Approach 1:
The belt segments are pre-assembled with connection features and teeth patterns before installation. The modular segments are prepared in advance with all necessary alignment features, eliminating the need to cut or modify the belt during mounting. This preliminary preparation enables easy installation while preserving the complete integrity of each belt segment.
3Ease of operation
If a modular belt system with connectors is used, then the belt can be mounted within constraints, but shear forces are applied to the connectors
Solution Approach 1:
The connection features are merged directly into the belt teeth structure itself rather than being separate attachments. The interlocking teeth patterns of adjacent belt segments form an integrated connection that distributes shear forces across multiple engagement points along the belt width, reducing stress concentration on any single connector.
4Ease of operation
If traditional metal chains are used, then mounting is straightforward, but the system lacks the advantages of belt drive systems
Solution Approach 1:
The belt system incorporates localized metal components only where needed for connection and engagement, while the majority of the belt structure uses lightweight polymeric materials. The connection features have metal-reinforced teeth patterns at specific locations to provide chain-like strength, while maintaining the overall advantages of belt drive systems including reduced noise and maintenance.
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
Enables the mounting of a continuous, unending drive belt onto sprockets within structural constraints without compromising the belt's integrity or the structural constraint, reducing shear forces on connectors and maintaining the belt's mechanical properties.
Implementation Method 1
a plurality of transverse compression devices, each of which is fitted through one of the plurality of through holes of the belt teeth, and further through the at least one transversely aligned through hole, wherein each respective transverse compression device creates a compressive force on the flexible helical belt in a direction that is generally transverse to the length of the flexible helical belt
Data Source
AI summary
Disclosed herein is an assembly, method of assembling, and kit for assembling an assembled flexible helical belt that is mounted within a mounting space defined by a continuous mechanical constraint of a device. Embodiments of the flexible helical belt include a flexible helical belt that has a plurality of belt teeth, where some of the belt teeth are each pierced by a through hole which extends through the respective belt tooth and where the flexible helical belt is of sufficient length such that, when the flexible helical belt is mounted within the intended mounting space, the flexible helical belt overlaps itself by at least one rotation such that each through hole is transversely aligned with at least one other through hole, enabling a transverse compression device to be fitted through the through holes, creating a transverse compressive force on the flexible helical belt to form a single continuous drive belt.