Electric Motor Application in Security Conveyor System

1. Component Composition

The security conveyor system is a key equipment in the security check process, primarily responsible for transporting luggage, packages, and other items steadily and continuously to the inspection devices. The system typically consists of the following parts:

• Conveyor Belt Body: Made from wear-resistant and anti-static materials, it supports item transportation.
• Driving Unit: Composed of motors and gear reducers, providing the power for the conveyor.
• Tensioning Device: Adjusts the belt’s tension to prevent slippage or misalignment.
• Guide Rollers: Guide the conveyor belt along a fixed track to ensure smooth operation.
• Control System: Includes PLC or motion controllers, enabling speed adjustment, start/stop control, and fault monitoring.
• Safety Protection Devices: Emergency stop buttons, guardrails, photoelectric sensors, etc., ensure operational safety.

2. Working Principle

The conveyor system is driven by a motor that provides torque to a gear reducer, rotating the drive rollers to keep the conveyor belt continuously running. When luggage is placed on the conveyor belt, it moves smoothly toward the X-ray or other inspection equipment. The control system adjusts the conveyor speed according to the inspection requirements, ensuring that the transportation rhythm matches the inspection rhythm. Simultaneously, the tension is adjusted via sensor feedback to prevent slippage or misalignment of the conveyor belt. The entire system must ensure low noise, stable operation, and high responsiveness, avoiding disruptions in the security check process.

3. Role of Motors in the System

The driving motor is the core power source for the conveyor system, and its performance directly affects the smoothness and reliability of the transport. The motor must have the following characteristics:

• High Stability and Continuous Operation Ability: Security devices often work for long periods; the motor must support long-term full-load operation without overheating or performance degradation.
• Precise Speed Control: Combined with a frequency converter or servo drive, the motor ensures the conveyor belt speed is accurately adjusted during different stages of operation, synchronizing with the inspection pace.
• High Torque Output: Especially during load starting and tension adjustment, a strong torque is required to ensure smooth startup and prevent slippage.
• Low Noise and Vibration: The security environment demands strict noise control, and the motor must have anti-vibration designs to ensure quiet operation.
• Dust and Moisture Protection: The motor is often exposed to public environments and must meet IP protection standards to ensure safe and stable operation.

4. Customized Motor Solutions

To meet the diverse needs of the security conveyor system, we recommend using high-performance three-phase AC asynchronous motors or servo motors paired with high-precision gear reducers. AC motors are suitable for standard load conveyor applications due to their simple structure and easy maintenance. Servo motors, on the other hand, are ideal for high-end equipment that requires precise speed and position control, providing real-time adjustments through feedback systems for flexible and energy-efficient transportation. Gear reducers use planetary or bevel gear solutions to balance high torque output with transmission efficiency. The motor casing is designed to meet IP54 protection standards or higher, with windings using high-temperature resistant enameled wire to ensure stable long-term operation. Moreover, our motor systems include emergency stop protection and overload protection mechanisms, ensuring the safety of both equipment and personnel. Overall, our motor solution meets the high-efficiency, stable, and safe operational needs of the security conveyor system, helping to enhance automation and intelligence in the security check process.