Spline Lock Shaft System for Axial Load Management
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Solution Overview
Problem
Existing coupling shaft systems experience axial load transfer issues during mechanical energy transmission, leading to wear and degradation of components, as axial loading is not effectively managed when connecting and disconnecting.
Innovation Solution
A coupling shaft assembly system with a spline lock body and a main coupling shaft body, featuring a locking bolt, phasing slot, and phasing tab, which aligns and locks the spline teeth to prevent axial movement and reduce axial load transfer by maintaining a fixed axial position with respect to the drive shaft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a coupling shaft system uses splines to transfer mechanical energy, then mechanical energy transfer is achieved, but axial loading is generated causing wear and degradation of components
Solution Approach 1:
The coupling shaft system is divided into separate components: a coupling shaft spline lock body with spline lock spline teeth, a main coupling shaft body with input spline teeth, and a locking bolt. This segmentation allows the axial load to be isolated and managed separately from the mechanical energy transfer function, reducing wear on components while maintaining power transmission capability.
Solution Approach 2:
The locking bolt acts as an intermediary element that retains the coupling shaft spline lock body in fixed communication with the main coupling shaft body. This intermediary component absorbs and manages axial loading forces, preventing them from being transferred to other system components, while allowing the spline teeth to continue transferring mechanical energy efficiently.
2Ease of operation
If the coupling shaft assembly is allowed to move axially during connection and disconnection, then ease of operation is improved, but axial load transfer to other components increases causing wear
Solution Approach 1:
The locking bolt and phasing tab mechanism are designed to preemptively counteract axial movement before it can occur during operation. The phasing slot with locked and unlocked portions provides a preliminary constraint that prevents axial inertial movement, thereby preventing axial load transfer to other components while maintaining ease of connection and disconnection through the controlled phasing mechanism.
3Object-affected harmful factors
If the coupling shaft assembly is locked in fixed axial position, then axial load transfer is reduced, but device complexity increases due to additional locking mechanisms
Solution Approach 1:
The locking function is merged with the existing spline structure by integrating the locking bolt with the coupling shaft spline lock body and main coupling shaft body. The phasing tab and phasing slot mechanism is combined with the spline teeth alignment, creating a unified structure that achieves axial load reduction without requiring entirely separate locking components, thereby minimizing the increase in device complexity.
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 system effectively limits axial inertial movement and reaction forces, ensuring consistent axial load transfer and reducing wear by locking the coupling shaft assembly in a fixed axial position, thereby minimizing the transfer of axial loads to other components.
Implementation Method 1
rotating the coupling shaft assembly system; transmitting an inertial torque to the locking bolt in response to the rotating; and rotating the locking bolt in response to the torque
Data Source
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AI summary
A coupling shaft assembly system (200) is disclosed. A coupling shaft assembly system (200) may have a coupling shaft spline lock body (204) having spline lock spline teeth (206), a main coupling shaft body (212) having input spline teeth (202), and a locking bolt (208), wherein the locking bolt (208) retains the coupling shaft spline lock body (204) in substantially fixed communication with the main coupling shaft body (212), wherein the coupling shaft spline lock body (204) retains the coupling shaft assembly system (200) in mechanical communication with a power shaft (300). In this manner, a coupling shaft assembly system (200) may reduce the axial forces transferred by the coupling shaft assembly system (200).