CT Slip Ring Cover Layout for Abrasion Powder Collection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing X-ray CT apparatuses face challenges in effectively collecting abrasion powder generated during the rotation of the slip ring, leading to scattering and reduced cooling efficiency due to accumulation in the cooling fan filter, necessitating separate collection of abrasion powders of different sizes from power and signal transmission brushes.
Innovation Solution
The X-ray CT apparatus incorporates a collection container with an opening positioned below the power supply brush in the direction of gravitational force and extending in the forward direction of the air flow generated by the slip ring rotation, along with a porous member to capture abrasion powders, ensuring collection during rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cover is attached to prevent abrasion powder scattering, then scattering is reduced, but abrasion powder still escapes through gaps and accumulates in the cooling fan filter, reducing cooling efficiency
Solution Approach 1:
The cover is divided into an upper cover and a lower cover that can rotate relative to each other. The lower cover rotates in the opposite direction to the slip ring, creating a rotating seal that prevents abrasion powder from escaping through gaps while maintaining thermal airflow for cooling efficiency.
Solution Approach 2:
The lower cover is designed to rotate dynamically in opposition to the slip ring rotation. This dynamic movement creates a rotating barrier that continuously blocks abrasion powder escape paths while preserving the thermal convection currents needed for effective cooling of the cooling fan.
2Reliability
If separate collection containers are used for different sized abrasion powders, then collection effectiveness is improved, but device complexity increases
Solution Approach 1:
A single collection container is designed with multiple functional zones: an upper collection space for larger abrasion powder particles and a lower collection space for smaller particles. The container serves multiple collection functions simultaneously, eliminating the need for separate containers while maintaining effective collection of different abrasion powder sizes.
3Reliability
If the collection container opening is positioned below the power supply brush, then gravitational collection is improved, but air flow generated by slip ring rotation may interfere with collection
Solution Approach 1:
The lower cover rotates in the opposite direction to the slip ring rotation, creating a dynamic sealing effect that directs air flow away from the collection container opening. This rotational dynamics prevents turbulent air flow from the slip ring from interfering with the gravitational collection process, while the opening remains positioned optimally for capturing abrasion powder.
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 collects abrasion powders of varying sizes by leveraging gravitational force and air flow directionality, preventing scattering and maintaining cooling efficiency by reducing accumulation in the cooling fan filter.
Implementation Method 1
the opening portion is positioned below the power supply brush in a direction of gravitational force
Implementation Method 2
extends to a side of a forward direction of an air flow occurring due to a rotation of the slip ring
Implementation Method 3
a porous member that is disposed inside the collection container is provided
Data Source
AI summary
Provided is an X-ray CT apparatus that can collect an abrasion powder during a rotation of a rotation frame. The X-ray CT apparatus includes a fixed frame, a rotation frame that is rotatable with respect to the fixed frame and includes an X-ray source and an X-ray detector, a slip ring that rotates in synchronization with the rotation frame, a power supply brush and a signal transmission brush that are in contact with the slip ring, a cover that covers the slip ring, the power supply brush, and the signal transmission brush, and a collection container that collects an abrasion powder. The collection container is provided in the cover, and has an opening portion positioned below the power supply brush in a direction of gravitational force and extends to a side of a forward direction of an air flow occurring due to a rotation of the slip ring.