Conveyor Drive Sprocket Locking Assembly for Alignment and Cleaning
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Solution Overview
Problem
Conveyor systems in sanitary environments face challenges in maintaining the correct spacing between drive sprockets for efficient alignment and cleaning, as freely movable sprockets cause alignment issues during belt replacement after sanitation.
Innovation Solution
A locking assembly with a flexible main body having alternating curved sections that engage drive sprockets to maintain desired spacing, allowing for easy cleaning by transitioning between locking and release positions, and formed from the same material as the conveyor belt to accommodate thermal expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If drive sprockets are freely movable along the drive shaft to allow easy cleaning, then cleaning accessibility is improved, but alignment precision deteriorates when conveyor belt is replaced
Solution Approach 1:
The locking assembly is segmented into multiple independent locking elements (locking bars with spring-loaded locking surfaces) that can engage with corresponding features on each drive sprocket. This allows individual sprockets to be locked at precise positions while maintaining the ability to release and move them freely for cleaning operations.
Solution Approach 2:
The locking assembly pre-positions the drive sprockets at correct spacing intervals before the conveyor belt installation. The locking surfaces are pre-configured to engage at specific locations, ensuring proper alignment is established in advance, eliminating the need for tedious manual alignment during belt replacement.
2Manufacturing precision
If drive sprockets are fixed in position to maintain proper spacing, then alignment precision is improved, but cleaning accessibility deteriorates
Solution Approach 1:
The locking assembly transitions from a static fixed-position system to a dynamic system where sprockets can be locked in place during operation and freely moved during cleaning. The spring-loaded locking mechanism allows easy transition between locked and unlocked states, providing both precise spacing maintenance and cleaning accessibility.
Solution Approach 2:
The system changes the operational parameter of sprocket mobility from fixed to movable based on operational mode. During normal operation, sprockets are locked at precise positions; during cleaning, the locking force is released allowing free movement. This parameter change resolves the contradiction between fixed positioning and cleaning accessibility.
3Power
If multiple drive sprockets are used to drive the conveyor belt, then driving force is improved, but device complexity increases
Solution Approach 1:
The locking assembly serves multiple functions: it maintains precise spacing between multiple drive sprockets, allows easy release for cleaning, and works with any number of sprockets on the drive shaft. This universal design prevents complexity multiplication despite having multiple sprockets, as the same locking mechanism can be applied to each sprocket independently.
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
Facilitates quick and tool-free alignment and cleaning of drive sprockets, ensuring proper spacing and alignment with the conveyor belt, while allowing for longitudinal movement during operation and independent release for sanitation.
Implementation Method 1
a locking assembly with a flexible main body having alternating curved sections that engage drive sprockets
Implementation Method 2
formed from the same material as the conveyor belt to accommodate thermal expansion
Data Source
Figure 1
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Figure 3
AI summary
A drive assembly (26) with drive sprockets (64) positioned to drive a conveyor belt (12) supported by a conveyor frame assembly (10). A locking device includes a main body that extends through each of the drive sprockets positioned along a drive shaft (32) of the conveyor assembly. The locking device includes spaced receiving notches (92) that each receive one of the drive sprockets to maintain a desired spacing between the drive sprockets when the locking device is in its locking position. The locking device is movable to a release position to independently release each of the drive sprockets from the locking device. Once released, each of the drive sprockets (64) are movable along the length of the drive shaft to facilitate cleaning of the conveyor assembly. When the locking device is in its locking position, the combination of the locking device and drive sprockets is movable along the longitudinal length of the drive shaft.