Combining the Problem Need to Solve in Braking Course of Descending Belt Conveyor, the paper narrates the self-cooled plate brake about its structure, working principle and function.

结合下运带式输送机制动时要解决的问题，阐述了自冷盘式制动装置的结构、工作原理及其功能。

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Adopted pedal brake system, operation ease, extending the life of belt and spindle.

脚踏式制动系统，操作更简单，同时延长龙带和锭子寿命。

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Then, in view of the actual operation for pumping problems such as the belt, broken rod, rod case of cards brake and so on in a depth discussion and analysis, and proposed solution to the problem.

再针对抽油机在实际运行中出现的问题，对断带、断杆、抽油杆遇卡和刹车等进行深入的讨论与分析，提出问题的解决方案。

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