采用摆线针轮减速器，回转扭矩大，凿岩效率高。
It adopts the cycloidal gear reducer with large torque to meet high efficiency drilling.
针齿壳销孔的加工是摆线针轮减速器制造的重要步骤之一。
Pinhole machining of pin gear housing is one of important procedures in manufacturing cycloid speed reducer.
本文分析了二齿差摆线针轮行星传动的啮合原理和强度计算方法。
The transmission theory of the two teeth difference cycloid gearing planetary drive is analysed.
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