Cân bằng động cơ điện Rotor: Giải pháp tiết kiệm • Máy cân bằng di động, máy phân tích rung động "Balanset" để cân bằng động máy nghiền, quạt, máy nghiền, máy khoan trên máy gặt đập liên hợp, trục, máy ly tâm, tua bin và nhiều loại rotor khác Cân bằng động cơ điện Rotor: Giải pháp tiết kiệm • Máy cân bằng di động, máy phân tích rung động "Balanset" để cân bằng động máy nghiền, quạt, máy nghiền, máy khoan trên máy gặt đập liên hợp, trục, máy ly tâm, tua bin và nhiều loại rotor khác

Tackling Rotor Imbalance in Repaired Electric Motors: An Economical Approach

The Issue: Balancing Rotors After Repair

Enterprises specializing in electric motor repair often face a daunting task: achieving precise cân bằng rôto following the repair process. The implications of not balancing a rotor correctly are far-reaching, from escalated vibration levels to eventual mechanical failure. This article elaborates on a budget-friendly method that involves specialized balancing equipment and a straightforward stand design.

Why Balancing Matters

Balancing is far from a mere quality check; it's an operational imperative. A rotor out of balance can result in:

  • Heightened Vibration: Leading to accelerated degradation of motor components.
  • Inflated Energy Use: Unbalanced motors consume extra energy, raising operational costs.
  • Safety and Operational Hazards: Including potential for mechanical breakdown and employee safety risks.

The Proposed Solution: Utilizing a Simple Stand and Spring Cushions

The most budget-friendly way to secure optimal rotor balance involves using a rudimentary stand designed explicitly for balancing. This stand comprises a welded frame supported on cylindrical spring cushions.

The Role of Spring Cushions

Spring cushions fulfill two vital functions:

  1. External Interference Isolation: They minimize the impact of external vibrations and noise on the motor.
  2. Preventing Resonance: The frame's natural frequency, cushioned by the springs, should be 2-3 times lower than the rotor's rate to mitigate resonance effects.

Adhering to these parameters ensures that post-balancing residual vibration seldom exceeds 0.3 - 0.7 mm/s—a figure within the acceptable limits for electric motors.

Assessing Effectiveness: Understanding Residual Vibration

The efficacy of this approach is quantifiable through residual vibration levels. Specialized balancing equipment can successfully reduce these levels to 0.3 - 0.7 mm/s, an acceptable standard for most electric motors. This indicates not just an extension of the motor's lifespan but also its efficient functioning.

Final Remarks: Balancing as a Strategic Asset

For organizations engaged in electric motor repair, the challenge of post-repair rotor balancing is more than a quality criterion; it's a strategic asset. By employing a cost-conscious stand design along with dedicated balancing equipment, residual vibration levels can be substantially reduced. The result is a motor that operates more efficiently, reliably, and safely.

Electric motors rotors balancing
Electric motors rotors balancing
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