Motor Mount Bush Orientation for Shaft Deviation Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing motor mount systems experience shaft deviation due to asymmetrical arrangements of bush mounts, which complicates the use of identical parts for all mounts, leading to potential rigidity differences and instability.
Innovation Solution
The motor mount system employs four identical bush mounts with specific configurations, where one bush mount is positioned closer to the center of gravity of the driving reaction force and rotated for higher vertical rigidity, ensuring equal displacement and reducing shaft deviation, while allowing for the use of the same parts across all mounts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bush mounts are arranged asymmetrically at four points, then the motor unit can be supported properly, but shaft deviation occurs on the output shaft of the motor unit
Solution Approach 1:
The bush mounts are designed with direction-dependent rigidity characteristics, where the rigidity in the vertical direction differs from the rigidity in the horizontal direction. This local quality differentiation allows the bush mounts to provide appropriate support in different directions, maintaining shaft alignment while accommodating the asymmetric arrangement of mounts.
Solution Approach 2:
The invention changes the rigidity parameter of the bush mounts by orienting them at specific angles. By adjusting the orientation angle of the bush mounts, the effective rigidity in different directions is modified, allowing the system to compensate for asymmetric arrangement and prevent shaft deviation.
2Reliability
If rigidity difference is set according to arrangement positions of bush mounts, then shaft deviation is suppressed, but the same parts cannot be used for all bush mounts
Solution Approach 1:
The bush mounts are designed as universal components that can be used in all four positions despite the asymmetric arrangement. By incorporating direction-dependent rigidity and appropriate orientation, a single bush mount design serves multiple functions and positions, eliminating the need for different parts while maintaining shaft alignment stability.
Solution Approach 2:
The invention embraces the asymmetric arrangement of bush mounts by designing the mounts themselves with asymmetric rigidity characteristics. Rather than trying to create symmetry through different parts, the solution uses identical parts with inherent directional properties that adapt to the asymmetric configuration, suppressing shaft deviation while maintaining parts uniformity.
3Device complexity
If identical bush mounts are used at all four positions, then parts commonality is achieved, but shaft deviation occurs due to asymmetric arrangement
Solution Approach 1:
The identical bush mounts incorporate local quality in the form of direction-dependent rigidity. This allows each mount to provide differentiated support characteristics in different directions, enabling the use of identical parts in asymmetric positions while preventing shaft deviation through the inherent directional properties of each mount.
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 configuration effectively suppresses shaft deviation by equalizing displacement amounts among all bush mounts, maintaining system stability and allowing for uniform part usage, thus addressing the issue of asymmetrical bush mount arrangements.
Implementation Method 1
the bush mount is disposed in a state where the bush mount is rotated in a direction in which rigidity to a load in a vertical direction is higher than rigidity of other bush mounts
Data Source
AI summary
A motor mount system includes a motor unit and a frame that supports the motor unit via four bush mounts. The four bush mounts have configurations that are identical to each other. Among the four bush mounts, a bush mount is closest to a center of gravity of driving reaction force input to two bush mounts disposed in front of the motor unit, or a center of gravity of driving reaction force input to two bush mounts disposed behind the motor unit, and the bush mount is disposed in a state where the bush mount is rotated in a direction in which rigidity to a load in a vertical direction is higher than rigidity of other bush mounts.