Vibration isolation structure of linear oscillatory motor and stirling engine
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Solution Overview
Problem
Current vibration isolation structures for linear oscillating motors inadequately absorb radial vibrations and external disturbances, leading to inefficiencies and potential collisions, as they rely on compression springs that hinder movement and are prone to collisions with guide shafts during large amplitude vibrations.
Innovation Solution
A dual vibration isolation structure comprising tension springs and position-limiting protrusions and blocks, which suspend the motor and limit its movement, effectively attenuating both high-frequency small-amplitude and low-frequency large-amplitude vibrations by creating a lateral gap and restricting the vibration range, preventing transmission to the fixed hood.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single vibration isolation device is used, then structure is simple, but both high-frequency and low-frequency vibrations cannot be effectively attenuated
Solution Approach 1:
The vibration isolation device is segmented into two functional subsystems: tension springs for high-frequency vibration isolation and position-limiting protrusions with blocks for low-frequency vibration limitation. This segmentation enables effective attenuation of both frequency ranges while keeping each subsystem relatively simple in structure.
Solution Approach 2:
The tension spring system and position-limiting protrusion-block system are merged into a unified vibration isolation device that handles both high-frequency and low-frequency vibrations. This merging combines the advantages of both subsystems to achieve comprehensive vibration attenuation without requiring separate independent devices.
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 solution significantly reduces vibration transmission, enhances operational stability, prevents collisions, and extends the service life of the linear oscillating motor by effectively isolating both internal and external vibrations, improving noise reduction and mechanical stability.
Implementation Method 1
The first vibration isolation device comprises a first set of tension springs and a second set of tension springs. The said first set of tension springs and the said second set of tension springs are both connected to the fixed hood and the housing to suspend the linear oscillating motor in the fixed hood
Implementation Method 2
The second vibration isolation device comprises at least two sets of position-limiting protrusions and position-limiting blocks. The said position-limiting protrusion and position-limiting block are set in a match on the linear oscillating motor and the fixed hood respectively or reversely, which can limit the moving range of the linear oscillating motor in the fixed hood
Data Source
AI summary
The disclosure provides a vibration isolation structure for linear oscillating motor and Stirling engine, wherein the said vibration isolation structure comprises a first vibration isolation device and a second vibration isolation device. The first vibration isolation device is set between the fixed hood and the housing of the linear oscillating motor to attenuate the high-frequency and small-amplitude vibrations from the linear oscillating motor. The first vibration isolation device comprises a first set of tension springs and a second set of tension springs, and a lateral gap is formed between the fixed hood and the linear oscillating motor. The second vibration isolation device is set in the said lateral gap to attenuate the low-frequency and large-amplitude vibrations from the linear oscillating motor. The second vibration isolation device comprises at least two sets of position-limiting protrusions and position-limiting blocks, and the position-limiting protrusion and position-limiting block are set in a match at the linear oscillating motor and the fixed hood respectively or reversely. Also disclosed is a Stirling engine assembled with a linear oscillating motor that comprising with an aforementioned vibration isolation structure. The vibration isolation structure improves the stability of the reciprocating linear oscillating motor and the Stirling engine, and reduces mechanical vibrations and noises.