Axle Assembly Adjuster Ring for Axial Positioning
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Solution Overview
Problem
Existing axle assemblies face challenges in efficiently adjusting the axial positioning of the differential unit and ring gear relative to the drive pinion without disassembling the differential unit, which increases assembly time and risks damage to components.
Innovation Solution
An axle assembly design incorporating a bearing support with a locking fastener and an adjuster ring that includes a threaded region and teeth, allowing for adjustment of the first inner race and preload force on the roller bearing assemblies without the need for shims or spacers, enabling precise axial positioning and secure locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional adjustment methods using shims or spacers are used to position the differential unit and ring gear, then axial positioning can be achieved, but assembly time increases and risk of component damage increases
Solution Approach 1:
The patent removes shims or spacers from the adjustment system entirely. Instead, an adjuster ring with a threaded portion directly engages a threaded portion on the bearing journal to provide precise axial positioning of the differential unit and ring gear, eliminating the need for separate shim components and reducing assembly steps
Solution Approach 2:
The adjuster ring is pre-threaded onto the bearing journal before final assembly. The threaded engagement is prepared in advance, allowing the differential unit and ring gear to be positioned accurately without requiring time-consuming shim insertion and adjustment operations during assembly
2Manufacturing precision
If traditional adjustment methods using shims or spacers are used to position the differential unit and ring gear, then axial positioning can be achieved, but risk of component damage increases
Solution Approach 1:
The patent eliminates shims or spacers that could be lost or misplaced during assembly. The adjuster ring with threaded engagement provides a secure, positive locking mechanism that ensures proper axial positioning without the risks associated with loose shim components
Solution Approach 2:
The threaded adjuster ring is pre-installed on the bearing journal with proper thread engagement before final assembly. This preliminary threading ensures that the differential unit and ring gear are correctly positioned from the start, preventing misalignment or improper installation that could damage components
3Productivity
If an adjuster ring with threaded region is used to adjust axial positioning, then assembly efficiency improves, but device complexity increases
Solution Approach 1:
The adjuster ring serves multiple functions: it provides axial positioning of the differential unit, positions the ring gear, and locks the bearing assembly in place. The threaded portion on the bearing journal serves both as a mounting feature for the adjuster ring and as the adjustment mechanism itself, reducing the need for separate components
Solution Approach 2:
The patent combines the adjuster ring with the bearing assembly, where the adjuster ring is integrated onto the bearing journal through threaded engagement. This merging of components simplifies the overall structure compared to using separate shims, spacers, and adjustment mechanisms
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 design facilitates efficient assembly and adjustment of the differential unit and ring gear, reducing assembly time and minimizing the risk of component damage while ensuring proper gear tooth contact and preload force, thereby enhancing the overall performance and reliability of the axle assembly.
Implementation Method 1
The adjuster ring includes a threaded region and a set of openings. The threaded region receives and mates with the threaded portion.
Data Source
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AI summary
An axle assembly having a bearing support, a roller bearing assembly, an adjuster ring, and a locking fastener. The adjuster ring and the roller bearing assembly may be disposed on and may receive a bearing journal of the bearing support. The locking fastener may inhibit rotation of the adjuster ring.