Motor Frame Elastic Support Layout for Rotating Vibration Suppression
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Solution Overview
Problem
Existing rotating devices that use elastic members to hold motors often fail to sufficiently reduce vibration.
Innovation Solution
A rotating device design that incorporates a motor, gear, first molded member formed of elastic resin, first non-molded member formed of elastic resin, and a housing, where the motor's frame is supported by the housing via both molded and non-molded elastic members, effectively suppressing vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single elastic member is used to hold the motor, then the structure is simple, but vibration is not sufficiently reduced
Solution Approach 1:
The support structure is divided into multiple elastic members (first elastic member and second elastic member) positioned at different locations around the motor. Each elastic member independently supports the motor at its respective position, allowing the system to handle complex vibration modes more effectively than a single elastic member could achieve alone.
Solution Approach 2:
Multiple elastic members are combined to work together in supporting the motor. The first elastic member and second elastic member are positioned at different angular positions and work in conjunction to provide comprehensive vibration suppression across multiple directions and frequencies, achieving better overall vibration reduction than any single member could provide.
2Object-affected harmful factors
If multiple elastic members are used to hold the motor, then vibration is sufficiently reduced, but the structure becomes complex
Solution Approach 1:
The elastic members serve multiple functions: they support the motor's weight, suppress vibration in radial directions, and dampen abnormal sounds. By designing the elastic members to perform multiple functions simultaneously, the patent reduces the need for additional separate components, thereby limiting structural complexity while achieving comprehensive vibration suppression.
Solution Approach 2:
The elastic members are positioned and designed to provide relatively uniform vibration suppression capability around the motor. By distributing the elastic members at appropriate angular intervals and designing them with similar characteristics, the system achieves balanced vibration reduction in all radial directions, preventing any single location from being a weak point without requiring overly complex asymmetric structures.
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
The described configuration effectively suppresses vibration and abnormal sound generation in rotating devices, improving their operational stability and noise reduction across a wide frequency band.
Implementation Method 1
a first molded member (81) formed of an elastic resin, a first non-molded member (41) formed of an elastic resin... The frame (30) is supported by the housing (22) via the first molded member (81)... capable of suppressing vibration
Data Source
AI summary
A rotating device includes a motor, gears, a first molded member formed of an elastic resin, a first non-molded member formed of an elastic resin, and a housing. The motor includes a rotation shaft and a frame. The housing includes a first inner surface in a rotation shaft direction of the motor. The frame includes a tube including two opening portions in the rotation shaft direction of the motor, and a first part covering one of the two opening portions. The first part of the frame connects to the first inner surface of the housing opposing the first part of the frame via the non-molded member in the rotation shaft direction of the motor. A part of the frame is supported by a portion of the housing via the first molded member.