Integrated Coupling Plate for Engine-Driven Generator Vibration Control
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Solution Overview
Problem
The existing coupling plates for engine-driven generators require additional components like balance disks to achieve rotor balance, which increases size, weight, and complexity, and do not effectively absorb natural axial vibrations.
Innovation Solution
A coupling plate composed of multiple elastic disks overlapped with specific hole patterns, allowing for the mounting of balance weights directly, which simplifies the structure and enhances vibration absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate balance-weight mounting plate is used to achieve rotor balance, then the rotating balance is improved, but the device complexity and number of parts increase
Solution Approach 1:
The patent combines the balance-weight mounting plate with the coupling plate into a single integrated component. The coupling plate includes a balance weight mounting portion with through-holes that allow balance weights to be mounted directly on the coupling plate itself, eliminating the need for a separate balance-weight mounting plate and reducing the total number of parts while maintaining the rotor balance function
2Reliability
If multiple separate components are used for coupling and balancing, then the functional requirements are met, but the size and weight of the assembly increase
Solution Approach 1:
The coupling plate integrates multiple functions into a single component: it serves as both the coupling element connecting the engine to the generator and the balance-weight mounting platform. This integration eliminates the need for separate balance-weight mounting plates and reduces the overall assembly weight while maintaining all required functions
3Power
If a traditional coupling plate structure is used, then the torque transmission is achieved, but the axial vibration absorption is insufficient
Solution Approach 1:
The patent introduces elastic elements (such as elastic rings or elastic portions) into the coupling plate structure to create a dynamic vibration absorption mechanism. These elastic elements allow the coupling plate to flex and absorb axial vibrations generated by the engine while still effectively transmitting torque to the generator, thus addressing both power transmission and vibration reduction requirements
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 allows for the omission of separate balance-weight mounting plates and effectively absorbs axial vibrations, improving the balance and reducing the number of components, thereby simplifying the structure and enhancing the operational stability of the rotating electric machine.
Implementation Method 1
a plurality of elastic disks integrally overlapped
Data Source
AI summary
A coupling plate for an engine-driven generator on which a balance weight can be mounted and which is simple in structure and is constituted by a same hole making pattern. In a coupling plate for an engine-driven generator driving a generator by an engine, a plurality of elastic disks overlapped integrally are provided, and the elastic disks have one of the inner circumference side and the outer circumference side in the radial direction connected to the engine and the generator as the input side and the other as the output side, and in each of the elastic disks, a plurality of holes including small-diameter weight mounting holes and large-diameter weight escape holes distributed/arranged with a predetermined interval in the circumferential direction are drilled so that the holes of the respective disks are positionally overlapped with each other.