旋转门是建筑物出入口常用的一种门，它最大的优点是同时兼顾建筑物进口通过

Revolving door is a commonly used door for building entrances and exits. Its biggest advantage is that it takes into account the two opposite safety requirements of building entrance passability and environmental isolation. It effectively plays the role of wind, dust, and sound insulation. Supported by the development of the above technology, it has superior performance in safety, anti-pinch, anti-collision, and speed regulation. In recent years, the three-wing revolving door has been widely used in buildings, hotels, shopping malls, airports and other places for its simple, beautiful, economical and practical shape. It has been loved by the public and has gradually become a symbol of fashion and trend. This design mainly discusses the design process of the three-wing automatic revolving door. It mainly analyzes and designs the door mechanical structure, motor drive system, PLC control system, and safety system in detail. The door structure adopts aluminum alloy and glass to form the door frame; the driving part is composed of a reduction motor and a gearbox reduction mechanism; the control system uses PLC to complete the control task, and the inverter realizes the adjustment function of the door body with multiple speeds; safety; The system uses infrared sensors to detect the flow of people entering and exiting the revolving door, and uses multiple sensors and photoelectric proximity switches to ensure safe passage. A safe, reliable and practical three-wing revolving door was designed. <br>Keywords: revolving door body; geared motor; frequency converter; PLC control

Revolving door is a commonly used door in the entrance and exit of buildings, its biggest advantage is to take into account the import of buildings through and environmental isolation of these two safety requirements, effectively played a role in wind, dust, sound insulation, coupled with the development of technology support, in the safety of anti-clamp, anti-touch, speed control and other performance have superior performance. In recent years, the three-wing revolving door, it is simple, beautiful and economical and practical widely used in office buildings, hotels, shopping malls, airports and other places, well received by the public, but also gradually become a symbol of fashion and fashion. This design mainly discusses the design process of the three-wing automatic revolving door, and mainly makes a detailed analysis and design of the door body mechanical structure, motor drive system, PLC control system and safety system. The door structure consists of aluminum alloy and glass, the drive part is composed of the gear motor and the gearbox deceleration mechanism, the control system is responsible for the control task with PLC, the inverter is used to realize the adjustment function of the door body multiple speeds, the safety system uses infrared sensors to detect the movement of people in and out of the revolving door, and uses multiple sensors and photoelectric proximity switches to ensure the safety of passage. A safe, reliable and practical three-wing revolving door has been designed.<br>Keywords: revolving door body;

Revolving door is a kind of door commonly used in building entrance and exit. Its biggest advantage is that it takes into account the two opposite safety requirements of building entrance trafficability and environmental isolation at the same time. It effectively plays the role of wind prevention, dust prevention and sound insulation. With the development of technology, it has superior performance in safety, anti pinch, anti-collision, speed regulation and other performance. In recent years, the three wing revolving door, with its simple shape, beautiful and economical and practical, is widely used in buildings, hotels, shopping malls, airports and other places, deeply loved by the public, and has gradually become a symbol of fashion and trend. This design mainly discusses the design process of the three wing automatic revolving door, mainly analyzes and designs the mechanical structure of the door body, motor drive system, PLC control system and safety system in detail. The door structure is composed of aluminum alloy and glass; the driving part is composed of reduction motor and gear box reduction mechanism; the control system uses PLC to complete the control task, and the frequency converter to realize the adjustment function of various rotation speeds of the door; the safety system uses infrared sensors to detect the flow of people in and out of the revolving door, and uses multiple sensors and photoelectric proximity switches to ensure the safety Traffic safety. A safe, reliable and practical three wing revolving door is designed.<br>Key words: revolving door body; reduction motor; inverter; PLC control<br>