Dispenser Rotary Valve Wear Ring Adjustment
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Solution Overview
Problem
Existing dispensers with rotary valves face issues of uncontrolled material flow due to mechanical tolerances, leading to variability in material transfer and abrasive wear on the housing, which complicates maintaining the required spacing and increases costs.
Innovation Solution
A dispenser with adjustable positioning of the rotary valve using threaded members and a reconfigurable liner that protects the housing from abrasion, allowing for precise alignment and accommodation of wear, ensuring controlled material flow and minimizing wear on the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rotary valve is positioned in close proximity to the housing to minimize uncontrolled material passage, then material flow control is improved, but the housing suffers from abrasive wear due to material contact
Solution Approach 1:
A wear ring is introduced as an intermediary component between the rotary valve and the housing. This wear ring captures the abrasive material that would otherwise directly contact and wear the housing, thereby protecting the housing while maintaining the close spacing required for controlled material flow.
2Reliability
If the rotary valve is positioned in close proximity to the housing to minimize uncontrolled material passage, then material flow control is improved, but mechanical tolerances make it difficult to achieve and maintain the required spacing
Solution Approach 1:
The wear ring is designed to be adjustable along the axial direction, allowing the spacing between the rotary valve and housing to be fine-tuned after assembly. This dynamic adjustment capability compensates for variations in mechanical tolerances and enables precise control of the spacing required for reliable material flow control.
3Object-affected harmful factors
If an adjustable lining is provided to protect the housing from abrasion, then housing protection is improved, but device complexity increases
Solution Approach 1:
The wear ring is designed as a separate, modular component that can be independently installed, adjusted, and replaced. This segmentation allows the housing protection function to be added without redesigning the entire dispenser structure, thereby minimizing the increase in device complexity while effectively protecting the housing from abrasion.
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 effectively maintains the required spacing between the rotary valve and housing, reducing uncontrolled material flow and wear on the housing, thereby ensuring consistent material dispensing and extending the dispenser's lifespan.
Implementation Method 1
The adjustment means comprises first and second threaded members which are separately secured at one end to the dispenser housing and at the other end to the first and second axle housing, respectively.
Data Source
Figure 1
Figure 2
AI summary
A dispenser for dispensing material is disclosed. The dispenser comprises a housing having an inlet and an outlet, and dispensing means disposed within the housing which is arranged to rotate about a rotational axis with respect to the housing to convey material between the inlet and the outlet. The dispenser further comprises adjustment means for adjusting the position of the dispensing means with respect to the housing to thereby adjust the spacing of the dispensing means from the housing.