关键词: 旋转喷杆喷嘴；自旋转；主动旋转；双喷杆喷嘴；三喷杆喷嘴

Abstract: Deep cleaning vehicles are a popular type of road cleaning and sanitation vehicle in the market in recent years, and the core component of deep cleaning vehicles is the rotating spray nozzle. This article analyzes the rotary spray nozzle of a deep cleaning vehicle, and compares it with the traditional linear spray nozzle of a cleaning vehicle. The rotary spray nozzle can effectively eliminate comb marks and has a better cleaning effect. However, the disadvantage is that the operating speed is relatively slow. The reason is that there is a corresponding relationship between the rotational spray nozzle speed and the vehicle speed. When the speed is lower than the critical value corresponding to the vehicle speed, a spiral line will appear on the ground, affecting the cleaning effect. At the same time, comparing the cleaning effects of active rotation and self rotation, as well as analyzing the motion of the rotating double spray bar nozzle and the rotating triple spray bar nozzle, provide better guidance for designing the rotating spray bar nozzle of deep cleaning vehicles.

Key words: Rotating spray bar nozzle; Self rotation; Active rotation; Double spray bar nozzle; Three spray rod nozzle