用于皮带及链传动的一种恒张力张紧装置

A Tension Device Used in Belt or Chain Drive

指出了皮带及链传动现有张紧方法的缺点，设计了一种结构简单、工作可靠的用于皮带及链传动的恒张力控制装置，该装置能自动调整压在皮带或链上的力，在很大挠角范围内保持其张力基本恒定。

Disadvantages of present tension modes used in belt or chain drive are pointed out.The authors design a new tension device,which is simple in structure,reliable in work.The force to press on belt or chain can be adjusted and kept constant within a bigger angular deflection with the device.