Spindle Plug and Sleeve Axle Assembly for Anti-Twist Hose Routing
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Solution Overview
Problem
Existing axle assemblies for tire inflation systems face challenges in preventing the hose from twisting and kinking, especially when the rotatable fitting becomes stuck or inhibited from rotating with the hub, which can lead to system malfunction and increased maintenance costs.
Innovation Solution
The axle assembly incorporates a sleeve that encircles the hose and extends from the spindle plug to the rotary union's stator, cooperating with the spindle plug to limit rotation and prevent twisting, thereby maintaining hose alignment and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the rotatable fitting is allowed to rotate freely with the hub, then the tire inflation system can accommodate hub rotation, but the hose may twist and kink when the fitting becomes stuck
Solution Approach 1:
The system is divided into two independent rotational segments: the hub that rotates freely, and the rotatable fitting that is decoupled from hub rotation through the sleeve mechanism. This allows the hub to rotate without transmitting rotational movement to the hose and fitting, preventing hose twisting while maintaining adaptability to hub rotation.
Solution Approach 2:
The sleeve acts as an intermediary component between the hub and the rotatable fitting. It selectively transmits or blocks rotational movement, serving as a mediator that protects the hose from twisting while still allowing the fitting to rotate independently when needed for tire inflation operations.
2Reliability
If the sleeve is designed to firmly limit rotation, then hose twisting is prevented, but installation and removal becomes difficult
Solution Approach 1:
The sleeve's interaction with the spindle plug features dynamic characteristics that allow it to be easily installed and removed during maintenance, while firmly limiting rotation during normal operation. The mechanical engagement can be temporarily disengaged for installation/removal but automatically engages to prevent rotation during use.
Data Source
AI summary
An axle assembly having a hose, a spindle plug, a sleeve, and a rotary union adapted to be fluidly connected to a tire. The spindle plug may be disposed in a spindle. The hose may be fluidly connected to the rotary union. The sleeve may encircle the hose and extend from the spindle plug to a stator of the rotary union. The sleeve cooperates with the spindle plug to limit rotation of the stator and the hose.