Modular Actuator Fixation for Eccentric Shaft Mounting
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Solution Overview
Problem
Existing actuator systems for fluid flow regulation in HVAC systems face complexity in mounting and require multiple accessories, which can lead to errors and increased labor due to the need for precise adaptation and anti-twist devices, especially when dealing with eccentricities in rotating shafts.
Innovation Solution
A modular actuator system with a simplified mounting process using a pre-mounted fixing element and detachable attachment components with a clamping connection, allowing for easy assembly and compensation of eccentricities without additional accessories, and being compatible with existing anti-rotation devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional actuators with specific attachment systems are used for each customer requirement, then the actuator can be precisely adapted to specific installation conditions, but the device complexity and variety of connection concepts increase significantly
Solution Approach 1:
The patent introduces a universal attachment component with a standardized connecting port that can accommodate different actuator types and installation conditions. The attachment component serves multiple functions: it provides a standardized interface for various actuators, enables different mounting configurations (side mounting, end mounting), and works with various fixing elements (screws, clips, adhesives). This multi-functional design eliminates the need for customer-specific attachment systems while maintaining adaptability to diverse installation requirements.
2Reliability
If multiple accessories like anti-twist devices and additional screws are added to ensure secure connection, then the reliability of the connection improves, but the mounting complexity and number of components increase
Solution Approach 1:
The patent merges the attachment component with the actuator housing through an integrated connecting port built into the housing. This integration eliminates the need for separate anti-twist devices and additional fixing elements. The connecting port itself provides both positioning and anti-rotation functionality, while the attachment component combines multiple fixing methods (screw holes, clipping mechanisms, adhesive surfaces) into a single unified component, reducing the total number of accessories required.
Solution Approach 2:
The patent segments the attachment system into a modular attachment component that can be independently designed and optimized. This attachment component acts as an intermediary between the actuator housing and the fixing element, separating the functions of connection, positioning, and anti-rotation into a dedicated module. This segmentation allows each function to be optimized within the single attachment component without requiring multiple separate accessories.
3Force
If the actuator is firmly coupled to the fluid regulating element to transmit high torque, then the torque transmission capability improves, but the risk of twisting and the need for anti-rotation devices increases
Solution Approach 1:
The attachment component serves as an intermediary element between the actuator housing and the fixing element mounted on the pipe. This intermediary provides a standardized interface that ensures proper alignment and prevents twisting during torque transmission. The connecting port with its specific geometry guides the fixing element into the correct position, while the attachment component's structure inherently provides anti-rotation capability, eliminating the need for separate anti-twist devices.
Data Source
AI summary
An actuator system is provided for operating a flow regulating element, e. g. a flap or a valve shutter for regulating a fluid flow in a fluid transportation pipe. The actuator system may include an actuator having an actuating motor coupled to a pivotable shaft of the flow regulating element which projects from the wall of the pipe. The actuator system has an attachment component for attachment of the attachment component to the wall of the fluid transportation pipe. The actuator and the attachment component are configured as a modular system.