The work principle of belt tensioning device is explained. Power source incorporating accumulator can damp pressure variation of the system, hence to keep the stable tension of the belt.
说明了皮带自动张紧装置的工作原理，带蓄能器的动力源能缓冲系统压力变化，从而使皮带的张紧力保持稳定。
This paper introduces the action of belt tensioning device, expounds the work principles and advantages of hydraulic automatic tensioning unit. The use result is very fine.
介绍胶带输送机拉紧装置的作用，详细阐述了液压自动拉紧装置的工作原理及液压自动拉紧装置的优点，实际应用中效果良好。
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