Multipartite Rotor for Tire Pressure Regulating Systems
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Solution Overview
Problem
Existing rotary transmission leadthroughs for tire pressure regulating systems face challenges in connecting to vehicle shafts without causing structural changes or damage, particularly during retrofitting, and require significant axial space.
Innovation Solution
A multipartite rotor structural group with a closed annular body and a tensioning ring design that connects torque-wise to the shaft, eliminating the need for welding and minimizing axial space, while protecting the wheel-side line connection from damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding is used to connect the rotary transmission leadthrough to the vehicle shaft, then secure connection is achieved, but structural changes and damage occur in the shaft area
Solution Approach 1:
The patent replaces the welding process (thermal/mechanical system) with a mechanical fastening system using a fastening element that has a deformation zone. This allows the rotary transmission leadthrough to be securely connected to the vehicle shaft through controlled deformation of the fastening element rather than through welding, thereby avoiding structural changes and damage to the shaft.
2Ease of operation
If a conventional angle piece design is used, then connection functionality is achieved, but installation space in axial direction increases
Solution Approach 1:
The patent applies nesting by placing the fastening element inside the rotor structural group, specifically within the movement slot. The fastening element is positioned such that its deformation zone lies within the rotor structural group, allowing the connection mechanism to be nested within the existing structure rather than extending outward, thereby minimizing axial installation space.
3Productivity
If the wheel-side supply line is connected to an angle piece that is screwed into the rotor, then air transmission is achieved, but damage can occur during improper wheel manipulation
Solution Approach 1:
The patent applies beforehand cushioning by designing the fastening element with a deformation zone that can absorb and accommodate improper manipulation forces. The deformation zone acts as a cushion that deforms under excessive force, protecting the wheel-side supply line and angle piece from damage during improper wheel mounting or manipulation, while still maintaining air transmission functionality.
Data Source
AI summary
A rotary transmission leadthrough as part of a vehicle tire pressure regulating system, comprising a rotor structural group that can be connected in a torque-connected manner to a shaft of the vehicle which supports a wheel, and a stator structural group stationarily mounted opposite the rotary movement of the rotor structural group. A sealable conduit between the rotor structural group and the stator structural group is a path for transferring gas from the stator structural group to the rotor structural group and/or the inverse to regulate tire pressure. The rotor structural group is multipartite. A first rotor part is a closed annular body that can be pushed on the vehicle shaft. A second rotor part mounted axially to the first rotor part and connected to it in a torque-connected manner is designed as a tensioning ring for connecting the rotor structural group to the vehicle shaft in a torque-connected manner.