Splined Shaft Insert Positioning for Accurate Lubricant Dam Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Axial positioning of a circular lubricant dam insert on a splined drive shaft is challenging, leading to potential improper lubrication and damage due to the difficulty in aligning the insert correctly with the splines.
Innovation Solution
A positioning tool with a circular body, splines, a depth setting member, and a position setting element is used to securely slide over the drive shaft, mate with the splines, and axially position the insert, ensuring proper alignment and secure fastening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a positioning tool is designed to axially position the lubricant dam insert, then axial positioning accuracy is improved, but the device complexity increases
Solution Approach 1:
The positioning tool is divided into distinct functional segments: a circular body for engagement, a depth setting member for axial positioning, and a position setting element for securing the insert. This segmentation allows each component to perform its specific function independently, achieving precise axial positioning without requiring an overly complex integrated structure.
Solution Approach 2:
The positioning tool performs preliminary positioning actions before final installation. The depth setting member pre-establishes the correct axial position, and the position setting element pre-secures the insert in place, ensuring accurate positioning is achieved before the insert is permanently installed on the drive shaft.
2Manufacturing precision
If the positioning tool includes depth setting member and position setting element, then axial positioning control is improved, but the ease of manufacture decreases
Solution Approach 1:
The positioning tool applies local quality by providing specific positioning features (depth setting member and position setting element) only where needed on the circular body. This allows precise axial positioning control at critical locations while keeping the overall structure relatively simple and manufacturable using standard machining operations.
Data Source
AI summary
A positioning tool for axially positioning a circular lubricant dam insert on a splined drive shaft may include a circular body having an inner surface configured to slide over an outer surface of the splined drive shaft. A first plurality of splines may be positioned on an inner surface of the circular body, the first plurality of splines mating with a second plurality of splines on the outer surface of the splined drive shaft. A depth setting member may be positioned on the circular body that defines an axial extent to which the circular body slides over the outer surface of the splined drive shaft. A position setting element may extend axially from the circular body to contact an axial end of the insert to axially position the insert on the splined drive shaft.