Summarization of Research on Fire Mechanism of Cotton Picker
(1.College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Xinjiang Urumqi 830052; 2.Xinjiang Bosheran Intelligent Agricultural Machinery Co., Ltd., Xinjiang Ili Prefecture 833000)
Abstract: [Objective] In order to avoid cotton picker fire accidents caused by cotton burning during the picking operation of cotton picker, it is urgent to develop a fire early warning device for cotton picker, and the primary problem to be solved by developing this device is to clarify the fire mechanism of cotton picker. [Method] The research group described the research status of fire monitoring at home and abroad and the research status of fire early warning of cotton picker at home, analyzed the causes of cotton picker fires in detail, and studied the burning characteristics, friction heat storage characteristics, impact friction ignition characteristics, friction and heat transfer physical characteristics of cotton and cotton picker picking parts. It is proposed that the study of the fire mechanism of cotton picker should start with the detection of the chemical components and their contents released from the key temperature nodes during the heating process of cotton, and then use the heat conduction model and the dynamic model based on the friction collision vibration system to reveal the physical characteristics and fire mechanism of cotton picker cotton under the mechanical friction state, and complete the dynamic analysis of the picking parts and the thermal energy analysis of the friction process. [Result] The mechanism of cotton picker fire can provide a theoretical basis for the selection of sensors, the analysis of fire characteristics and the establishment of fire prediction model in the cotton picker fire early warning system.
Keywords: cotton picker; friction characteristics; fire mechanism