Motor Thrust Plate Grooves for Axial Balance
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Solution Overview
Problem
Fan motors experience reduced quality and lifespan due to shaft misalignment, vibration, and lubricant leakage, particularly when operated in unstable conditions, leading to increased wear and inefficient gas exhaust.
Innovation Solution
A motor design incorporating a shaft, rotor shell, bushing, bearing, and thrust plate with grooves, along with an oil seal and oil repellent layers, to maintain axial balance and facilitate gas exhaust, preventing lubricant leakage and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the motor operates in shaking, vibration or reversed situations, then the motor can adapt to unstable environments, but the shaft shifts causing contact and wearing of the shaft and bearing
Solution Approach 1:
The thrust plate is introduced as an intermediary component between the shaft and bearing. It absorbs axial thrust forces and prevents direct contact between the shaft and bearing, thereby reducing wear while allowing the motor to operate in unstable environments with vibration and reversal.
Solution Approach 2:
The thrust plate is positioned in advance to cushion and absorb axial thrust forces before they can cause shaft shifting or bearing wear. This preventive measure protects the shaft and bearing from contact and wearing during unstable operation.
2Productivity
If the motor operates for extended periods, then productivity increases, but waste gas from lubricant accumulates and decreases quality and lifespan
Solution Approach 1:
The exhaust hole extracts and removes waste gas generated from lubricant during motor operation. By providing a dedicated exhaust path, the system can operate for extended periods without harmful gas accumulation, maintaining quality and lifespan while increasing productivity.
3Adaptability or versatility
If the motor operates in unstable conditions, then adaptability improves, but lubricant leaks from the bearing affecting quality and lifespan
Solution Approach 1:
The oil seal acts as an intermediary barrier between the bearing and external environment. It prevents lubricant from leaking out while allowing the motor to operate in unstable conditions, thereby maintaining reliability without compromising adaptability.
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 design enhances the motor's lifespan and quality by maintaining axial balance, preventing lubricant leakage, and ensuring efficient gas exhaust, thereby reducing operational instability and wear.
Implementation Method 1
At least one surface of the thrust plate is formed with a plurality of grooves tapering off from an edge to a center
Implementation Method 2
an oil seal covering the bearing and formed with at least one through hole or a discharge trench
Implementation Method 3
an oil repellent layer formed on a surface of an oil seal covering the bearing, a surface of the bushing, or a surface of the rotor shell facing the bearing
Data Source
AI summary
A motor includes a shaft, a rotor shell, a bushing, a bearing, and a thrust plate. The rotor shell is connected with the shaft. The bushing has an accommodating space. The bearing is disposed in the accommodating space, and the shaft is disposed through the bearing. The thrust plate is connected with the shaft, and is disposed between a bottom of the accommodating space and a bottom of the bearing. At least one surface of the thrust plate is formed with a plurality of grooves tapering off from an edge to a center.