ABS Motor Eccentric Sleeve for Bearing Coupling
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Solution Overview
Problem
Conventional ABS motors have a straight rotation shaft, which increases manufacturing costs and limits their versatility due to the need for specialized designs, making it difficult to couple needle bearings efficiently.
Innovation Solution
An ABS motor design featuring a cylindrical rotation shaft with a press-fitted eccentric sleeve that includes upper and lower bearing seats with a 120° phase difference, allowing for easy coupling of needle bearings without additional phase adjustment, and disengagement prevention devices to maintain their position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a straight rotation shaft is used in conventional ABS motors, then the motor structure is simple, but the manufacturing cost increases and versatility is limited due to specialized designs
Solution Approach 1:
The patent applies universality by designing a straight rotation shaft that can accommodate needle bearings at multiple angular positions (90°, 120°, 180°) through a standardized coupling mechanism. This allows the same motor design to serve multiple applications and configurations, reducing the need for specialized designs and improving manufacturing economy while maintaining structural simplicity
2Device complexity
If a straight rotation shaft is used in conventional ABS motors, then the motor structure is simple, but the coupling of needle bearings becomes difficult
Solution Approach 1:
The patent introduces a coupling mechanism as an intermediary component that bridges the straight rotation shaft and the needle bearings. This coupling allows easy attachment and angular positioning of needle bearings without modifying the simple straight shaft structure, thereby improving coupling ease while maintaining structural simplicity
3Ease of operation
If an eccentric sleeve is coupled to a rotation shaft, then needle bearings can be coupled easily at predetermined angles, but the motor structure becomes more complex
Solution Approach 1:
The patent applies preliminary action by pre-configuring the coupling mechanism with predetermined angular positions (90°, 120°, 180°) for needle bearing attachment. This allows needle bearings to be coupled easily at the correct angles without requiring complex alignment procedures or additional adjustment mechanisms, thereby improving coupling ease while minimizing structural complexity
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 easy and reliable coupling of needle bearings, enhancing the motor's reliability and reducing manufacturing costs by allowing the use of a mass-produced motor with an eccentric shape, thus improving the motor's overall performance and applicability.
Implementation Method 1
a sleeve (20) that is press-fitted to the rotation shaft (11)
Data Source
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Figure 3
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AI summary
The present invention relates to an ABS motor for vehicles, characterized by: a motor body having a rotation shaft; a sleeve press-fitted to the rotation shaft, and provided at a periphery thereof with an upper bearing seat and a lower bearing seat each eccentrically provided; an upper needle bearing press-fitted into the upper bearing seat; and a lower needle bearing press-fitted into the lower bearing seat.