Threaded Rotor Securing Mechanism for Easy Service Attachment
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Solution Overview
Problem
Traditional methods of securing a rotor to a drive connector using a pin are cumbersome, requiring drilling and can be difficult to service due to lubrication issues and the need for additional tools, necessitating a more efficient and serviceable connection.
Innovation Solution
A threaded connection is implemented between the rotor and drive object, where the rotor's end portion and the drive object's surface are threaded to complement each other, allowing for removably affixed attachment, with the threading direction aligning with the rotation to self-tighten the connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pin connection is used to secure the rotor to the drive connector, then the rotor is securely attached, but the servicing becomes cumbersome and requires additional tools
Solution Approach 1:
The patent removes the pin component entirely from the connection system. Instead of using a pin that requires insertion through drilled holes, the invention uses a direct threaded engagement between the rotor shaft and drive connector, eliminating the need for separate fastening elements and simplifying both assembly and servicing operations
Solution Approach 2:
The threaded connection structure serves multiple functions: it provides secure attachment, enables easy removal and reattachment for servicing, and eliminates the need for additional tools. The threads themselves perform both the fastening and the release functions that would otherwise require separate tools and procedures
2Reliability
If a pin connection is used to secure the rotor, then the rotor is firmly held, but lubrication creates slippery conditions making pin retention difficult
Solution Approach 1:
The patent eliminates the pin component that is susceptible to lubrication-induced slippage. By using direct threaded engagement between the rotor shaft and drive connector, the connection interface is removed from the system, eliminating the problem of lubrication causing pin retention issues
Solution Approach 2:
The threaded structure acts as an intermediary mechanical interface that translates rotational motion into secure axial retention. The threads create a self-retaining connection through friction and geometric interlocking that is not dependent on separate fastening elements that could slip under lubrication
3Reliability
If drilling is performed to insert a pin, then the rotor can be secured, but the manufacturing process becomes more complex
Solution Approach 1:
The patent removes the drilling operation and pin insertion steps from the manufacturing process. The threaded connection is integrated directly into the rotor shaft and drive connector components, eliminating the need for post-manufacturing hole creation and pin installation procedures
Solution Approach 2:
The threading features are integrated as part of the basic component geometry rather than being added through separate drilling and fastening operations. The rotor shaft and drive connector are designed with complementary threads that engage directly, merging the connection function into the component design itself
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 threaded connection provides a secure, easy-to-service attachment that eliminates the need for drilling and simplifies maintenance by allowing for tool-free detachment and reattachment.
Implementation Method 1
The first surface of the end portion of the rotor may be threaded. The second surface may be threaded to complement the first surface of the rotor. The drive object and the rotor may be removably affixed by threading the two surfaces together.
Data Source
AI summary
An improved mechanism for securing a rotor is provided. The rotor may have an end portion with a first surface. The first surface may be threaded. The first surface of the end portion of the rotor may be different than the portion of the rotor not consisting of the end portion. A drive object may have a second surface formed on a face of the drive object to receive the first surface of the rotor. The second surface may be threaded to complement the first surface of the rotor. The drive object and the rotor may be removably affixed by threading the two surfaces together. In some embodiments, the threading on the two surfaces may follow the direction of rotation of the rotor. In some embodiments, the second surface may be made of a material that is softer than the first surface.