Subway turnstile driver: the power core of the subway station

As a critical component within subway stations, the performance stability of the subway turnstile drive directly impacts passengers’ travel experience and the operational efficiency of station management. This paper analyzes the structure, functional characteristics, and pivotal role of the subway turnstile drive in subway operations. The subway turnstile drive primarily consists of a motor, a transmission mechanism, and a control system. When a passenger presents a valid ticket or uses mobile payment to pass through the turnstile, the control system receives the signal and activates the motor. The motor then drives the transmission mechanism to open and close the turnstile gate, enabling swift passage for passengers. Specifically, the operating principle of the subway turnstile drive can be summarized in the following steps: The passenger approaches the turnstile and triggers the sensing device. Upon receiving the sensing signal, the control system verifies the validity of the ticket or mobile payment. If the ticket or mobile payment is valid, the control system activates the motor. The motor, via the transmission mechanism, opens the turnstile gate, allowing the passenger to pass through. After the passenger has passed, the control system reverses the motor’s direction, closing the turnstile gate. Functional Characteristics of the Subway Turnstile Drive High Efficiency and Stability: The subway turnstile drive employs high-performance motors and transmission mechanisms to ensure rapid and stable opening and closing of the turnstile, providing passengers with a smooth passage experience. Energy-saving



2024/06/21

Shenzhen DC Servo Motors: The Core of High-Precision Industrial Automation

Shenzhen DC servo motors are engineered for precision and stability. Upon receiving pulse signals, these motors rotate by precisely prescribed angles, enabling highly accurate position control. Their control accuracy can reach 0.001 mm, fully meeting the demands of various precision machinery. In addition, Shenzhen DC servo motors exhibit excellent speed-regulation performance, with a wide speed range and rapid response, allowing them to quickly adapt to diverse and complex operating environments. They also boast strong anti-interference capabilities, ensuring stable operation even in environments with significant electromagnetic interference. Shenzhen DC servo motors are widely used as actuator drives in various digital control systems, including CNC machine tools, printing equipment, and packaging machinery. In these applications, they play a critical role in precisely controlling rotational speed and positional displacement, thereby guaranteeing stable equipment operation and high-efficiency production. Furthermore, they excel in applications requiring precise control of constant speed or precise control of speed profiles, such as textile machinery and chemical processing equipment. As industrial automation continues to advance, the demand for DC servo motors is steadily increasing. As a major manufacturing hub for DC servo motors, Shenzhen’s products enjoy a highly competitive position in the market.



2024/06/11

A high-efficiency, high-precision power source: the permanent-magnet DC servo motor

Permanent-magnet DC servo motors, as an essential component of modern industrial automation, are widely employed in various high-precision, high-demand control systems due to their efficient, precise, and reliable performance. This paper provides a detailed exposition on the basic structure, operating principle, performance characteristics, and application areas of permanent-magnet DC servo motors. A permanent-magnet DC servo motor primarily consists of three main components: the motor body, sensors, and the controller. The motor body is the core of the servo motor and comprises key parts such as the rotor, stator, and permanent magnets. The sensor section is responsible for providing real-time feedback on the motor’s rotational state, including encoders and Hall-effect devices. The controller, in turn, processes the sensor feedback to compute the necessary control signals, thereby precisely regulating the motor’s speed, direction, and position. The operating principle of a permanent-magnet DC servo motor is based on two fundamental aspects: magnetic field interaction and motor control. The magnetic field generated by the permanent magnets interacts with the magnetic field produced by the armature through current control, resulting in a torque that initiates motor rotation. The strength of the magnetic field directly influences the motor’s output power; therefore, maintaining a strong magnetic field from the permanent magnets is one of the key factors underlying the outstanding performance of permanent-magnet DC servo motors. Performance Characteristics High Precision: Permanent-magnet DC servo motors can achieve highly accurate control of position, speed, and acceleration, meeting the requirements of various



2024/06/03

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