Segmented Cogwheel Layout for Perpendicular Meshing and Translation
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Solution Overview
Problem
Existing cogwheel designs face challenges in achieving effective perpendicular engagement and translation while minimizing axial forces and maintaining sufficient contact area, leading to design complexities and reduced force transfer.
Innovation Solution
A multi-cogwheel design with specific dimensions and tooth profiles, where each cogwheel part has the same number of teeth, circular pitch, and face width, with rotational offset and asymmetrical tooth profiles to enable perpendicular meshing and translation without unwanted rotational forces, mimicking a rack and pinion system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If helical cogwheels are used to transmit power perpendicular to the axis, then power transmission capability is improved, but axial forces are generated requiring thrust bearings which increases device complexity
Solution Approach 1:
The cogwheel is divided into multiple independent tooth segments arranged around the circumference. Each tooth is spaced apart from others, creating discrete engagement points rather than continuous helical contact. This segmentation eliminates axial force generation while maintaining perpendicular power transmission capability between cogwheels.
2Ease of operation
If racks are provided with cuts for both clockwise and anti-clockwise spirals to balance forces, then force balance in both directions is achieved, but contact area between cogwheel and rack is reduced thereby reducing force transfer
Solution Approach 1:
The tooth design employs asymmetric profiling where teeth have different engagement characteristics on opposite sides. This asymmetry allows the same tooth configuration to effectively engage during rotation in either clockwise or anti-clockwise direction, providing force balance without requiring separate tooth patterns or reducing contact area.
3Adaptability or versatility
If face width of cogwheel parts is reduced to half the circular pitch, then perpendicular meshing is enabled, but contact area is reduced affecting force transfer
Solution Approach 1:
The invention transitions from traditional face-width-based contact to circumferential tooth-based contact. By arranging multiple teeth around the circumference with specific spacing (half circular pitch offset), the system achieves perpendicular meshing capability while maintaining adequate force transfer through distributed tooth engagement rather than relying on face width.
Data Source
AI summary
The present disclosure provides an improved cogwheel permitting enhanced meshing of cogwheels when operating perpendicularly. Exemplary embodiments introduce a multi-cogwheel design with specific dimensions and tooth profiles to permit perpendicular engagement of cogwheels whilst permitting translation of such cogwheels.