Face Gear Engaging Piece Tooth Profile for Lightweight Torque Transfer
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Solution Overview
Problem
The weight of engaging pieces for torque transmission in existing technologies is too large, failing to meet the lightweight requirements of new energy vehicles.
Innovation Solution
The design of an engaging piece with a first end face tooth portion featuring a plurality of first teeth, where the top, bottom, and sides of each tooth have specific line configurations that intersect at specific points, optimizing the thickness and weight distribution to reduce the overall weight while maintaining torque transmission capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the engaging piece uses conventional tooth design with uniform thickness, then the torque transmission capability is sufficient, but the weight is too large
Solution Approach 1:
The patent applies local quality by varying the tooth thickness along its length. The tooth is designed with different thicknesses at different positions: thicker at the root for strength, and thinner at the tip for weight reduction. This non-uniform thickness distribution allows the engaging piece to maintain sufficient torque transmission capability while reducing overall weight, directly resolving the contradiction between weight and strength.
Solution Approach 2:
The patent changes the geometric parameters of the tooth profile, specifically the thickness parameter varying along the tooth height. By optimizing the thickness distribution and the positions of intersection points of extended lines, the design achieves a balance between weight reduction and maintaining adequate strength for torque transmission, addressing the contradiction between these two requirements.
2Weight of moving object
If the engaging piece is lightweighted, then the endurance of new energy vehicles is improved, but the torque transmission reliability may be compromised
Solution Approach 1:
The patent ensures reliability by concentrating material where it is most needed - at the tooth root and critical stress areas - while removing material from less critical regions. The specific geometric configuration with controlled intersection points of extended lines ensures that the remaining material provides sufficient strength and stiffness for reliable torque transmission, even with overall weight reduction.
Solution Approach 2:
While the patent primarily focuses on geometric optimization, the design principles could be extended to composite material applications where different materials or material distributions are used to achieve high strength-to-weight ratio, thereby improving vehicle endurance while maintaining torque transmission reliability.
Data Source
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AI summary
The invention provides an engaging piece for torque transmission, an engaging device, a torque transmission assembly, and a vehicle, and relates to the technical field of face gears The engaging piece includes a first disk body, is provided with a first end face tooth portion, the first end face tooth portion includes a plurality of first teeth, the top of each first tooth has a first line (131), the bottom has a second line (132), two sides each have a third line (133), an extension line of the first line (131) and an extension line of the second line (132) of at least one first tooth intersect at a first point (14), extension lines of the two third lines (133) intersect at a second point (15), and the first point (14) is closer to the corresponding first tooth than the second point (15).