Slip Ring Locking Mechanism for Vehicle-Mounted X-Ray Scanners
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Solution Overview
Problem
The slip ring in radiographic inspection apparatuses within vehicle-mounted security systems can rotate due to vibrations during vehicle travel, potentially causing damage when the apparatus is not in operation.
Innovation Solution
A locking mechanism with a driving mechanism and locking portion is used to press the slip ring in the axial direction, preventing it from rotating relative to the upright framework, featuring a moving rod with a suspension portion that engages with a joint portion on the slip ring to secure it in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the radiographic inspection apparatus is provided in the box of the vehicle without a locking mechanism, then the device complexity is reduced, but the slip ring may rotate due to vibration during vehicle travel, causing damage to the slip ring and reducing reliability
Solution Approach 1:
The locking mechanism is activated before vehicle movement to prevent slip ring rotation during transport. The driving mechanism drives the locking portion to press against the slip ring's outer ring, creating a preliminary constraint that prevents vibration-induced rotation during vehicle travel.
Solution Approach 2:
The locking portion acts as an intermediary element between the upright framework and the slip ring. It transfers the constraining force from the driving mechanism to the slip ring, preventing direct vibration damage while maintaining operational freedom when unlocked.
2Reliability
If the locking mechanism continuously presses the slip ring to prevent rotation, then the slip ring is protected from vibration damage, but the friction and wear increase, potentially affecting the slip ring's operational life
Solution Approach 1:
The locking mechanism operates periodically rather than continuously. It locks the slip ring during vehicle travel when protection is needed, and unlocks during operational phases when rotation is required. This periodic activation minimizes friction and wear while maintaining protection during critical periods.
Solution Approach 2:
The locking mechanism transitions between locked and unlocked states based on operational requirements. The driving mechanism controls the locking portion to dynamically adjust the constraint level, pressing the slip ring during transport and releasing during operation, thereby balancing protection with operational needs.
Data Source
AI summary
A radiographic inspection apparatus and a vehicle-mounted security inspection system. The radiographic inspection apparatus includes a scanning device. The scanning device includes: an upright framework; a slip ring rotatably provided on the upright framework; and at least one locking mechanism. Each locking mechanism includes: a driving mechanism provided on the upright framework; and a locking portion provided on the driving mechanism and configured to press the slip ring in an axial direction of the slip ring under a driving of the driving mechanism, so as to prevent the slip ring from rotating relative to the upright framework.