带式输送机液压自动拉紧装置的设计
Design of Hydraulic Automatic Tension Device of Belt Conveyor
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摘要: 文章在分析常见的带式输送机拉紧装置优缺点的基础上,设计了ZYL型液压自动拉紧装置,详细介绍了装置的结构组成、工作原理及特点。该自动拉紧装置采用液压技术,将拉紧油压转换为活塞杆的轴向移动,带动拉紧小车纵向移动以改变拉紧行程,拉紧行程的改变又转换为带式输送机拉紧滚筒的移动,从而改变输送带的张力,保证了输送带与拉紧滚筒间所必需的摩擦力;设置了电控箱控制液压拉紧装置的运行,可实现就地控制和远程控制。实际应用表明,该液压自动拉紧装置运行稳定、性能可靠、维护调整方便,可满足带式输送机各种运行工况的需要。Abstract: On the base of analyzing advantages and disadvantages of common tension device of belt conveyor,the paper designed ZYL type of hydraulic automatic tension device and introduced its structure composition,working principle and characteristics in details.The automatic tension device adopts hydraulic technology and converts oil pressure to axial movement of piston rod,thus tension trolley is drived to longitudinal move to change tension travel.The change of tension travel is converted to movement of tension cylinder of the belt conveyor so that to change tension of the belt and insures essential friction between belt conveyor and tension cylinder.It sets electric control cabinet to control running of hydraulic tension device and realizes local control and remote control.Actual application showed the hydraulic automatic tension device has steady running,reliable performance and convenient maintenance and adjustment,which can meet requirements of all kinds of running conditions of belt conveyor.