Conical Turnbuckle Linkage for Independent Vane Angle Adjustment
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Solution Overview
Problem
Existing turnbuckle systems in axial flow turbomachines face limitations in independently adjusting length and rotational orientation, leading to suboptimal vane angles and efficiency due to limited thread specifications and fixed orientations.
Innovation Solution
A turnbuckle linkage with conical threads and nuts allows for independent adjustment of length and rotational orientation of end bearings, using inside and outside rods with tabs and conical nuts to securely couple and adjust structures, enabling limitless resolution of length and orientation adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional turnbuckle systems with fixed thread specifications are used, then the structure is simple and easy to manufacture, but the adjustment resolution is limited and cannot achieve precise vane angle control
Solution Approach 1:
The turnbuckle is divided into separate inside rod and outside rod components with tabs, allowing independent adjustment of length and orientation. The tabs create discrete adjustment positions while maintaining structural integrity, resolving the contradiction between precision and complexity.
Solution Approach 2:
The turnbuckle design enables dynamic adjustment of both length and rotational orientation independently. The conical threads and tabs allow continuous length adjustment while providing discrete orientation positions, achieving precise vane angle control without excessive complexity.
2Adaptability or versatility
If traditional fixed orientation turnbuckles are used, then the device complexity is low, but the adaptability for independent length and orientation adjustment is limited
Solution Approach 1:
The turnbuckle linkage serves multiple functions: length adjustment, orientation adjustment, and secure coupling of structures. The tabs and conical nuts provide universal adaptability for both linear and rotational adjustments, achieving high versatility without proportionally increasing complexity.
Solution Approach 2:
The tabs act as intermediaries between the conical threads and the outside rods, enabling independent length and orientation adjustments. This intermediary mechanism allows the turnbuckle to achieve versatile adjustment capabilities while maintaining manageable structural complexity.
3Productivity
If conventional turnbuckles with limited thread specifications are used, then the manufacturing is simple, but the adjustment resolution is insufficient for optimizing compressor efficiency
Solution Approach 1:
The invention adds a rotational orientation dimension to the traditional linear adjustment turnbuckle. The tabs provide discrete angular positions while the conical threads enable continuous length adjustment, creating a two-dimensional adjustment space that significantly improves compressor efficiency optimization capability.
Solution Approach 2:
The conical thread design with tabs enables continuous parameter changes in length while providing discrete parameter changes in orientation. This dual-parameter adjustment capability allows fine-tuning of vane angles for optimal compressor efficiency, overcoming the limited resolution of conventional turnbuckles.
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
This solution allows for precise adjustment of vane angles in axial flow turbomachines, optimizing compressor efficiency by enabling independent adjustments of turnbuckle length and orientation, thereby improving airflow and pressure ratio.
Implementation Method 1
conical nuts to constrict the tabs around the outside rods and couple the inside rod and the outside rods
Implementation Method 2
conical nuts including threads correlating with the conical threads of the tabs of the inside rod, the conical nuts to threadably couple to the tabs
Data Source
AI summary
Turnbuckle linkages are disclosed herein. A turnbuckle linkage includes a hollow rod including an inner portion, a first outer portion, and a second outer portion between the first outer portion and the inner portion, the inner portion including a first thickness, the second outer portion including a second thickness less than the first thickness, and the first outer portion including a conical thickness that varies from the second thickness to a third thickness less than the second thickness, the first outer portion and the second outer portion including first threads, a threadless rod to be partially positioned in the hollow rod, and a conical nut including second threads to engage the first threads, the conical nut to couple the hollow rod and the threadless rod.