液压张紧装置可使带式输送机启动平稳，可有效地保护输送机和输送带。

Hydraulic pressure strain device makes belt conveyor start steady, and it can protect belt conveyor and belt.

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通过近水平和上运大型带式输送机制动工况和起动工况的张力分析，明确了制动装置位置对输送带张紧力的影响，进而提出大型输送机制动与张紧装置的优化布置方法。

According to the belt tension analysis of the large near-horizontal and upstroke conveyor during braking and starting, this paper gives the effects of brake location on the take-up tension.

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随着煤矿带式输送机长度的增加和阻燃整芯输送带的伸长量增大，现有的张紧装置难以适应这种输送带张紧的要求。

With the increasing of the length of belt conveyors and the using of burning-proof belts. The existing take-up cannot meet the needs of belt tension for the stretching amounts of the belt increase.

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