曲柄、曲柄轴、组合曲轴及应用该曲轴的内燃机或压缩机制造技术

本发明专利技术公开了一种曲柄，所述曲柄为扁圆柱体，所述曲柄上设置有在曲柄一端面开口的偏心孔，用于在与曲拐装配构成完整曲轴时容纳曲拐之曲柄销的自由端，称为曲柄销安装孔；所述曲柄销安装孔的中心轴线与所述曲柄的中心轴线平行；其中，所述曲柄销安装孔为闷头孔；在所述曲柄销安装孔的底壁上设置有与该安装孔底壁端面同心的环形槽，称为传力槽。通过设置该传力槽，可改善所述曲柄销安装孔的底壁与曲柄销自由端端面之间的压紧力的分布，使曲柄销安装孔与曲柄销自由端很好的贴合。本发明专利技术同时提供一种曲柄轴、应用该曲柄轴的组合曲轴以及应用该组合曲轴的内燃机或压缩机。

Crank, crank shaft, combined crankshaft and internal combustion engine or compressor using the crankshaft

The invention discloses a crank, the crank is a flat cylinder, the crank is arranged on the eccentric hole on one end surface of the crank to receive the free end curved in a complete crankshaft and crank assembly at the turn of the crank pin, called the crank pin mounting hole; the central axis of the central axis of the crank the pin mounting hole and the crank parallel; among them, the crank pin mounting hole for bulkhead hole; the crank pin bottom wall mounting holes arranged on the annular groove and the bottom end wall mounting hole concentric, called dowel slot. By setting the force transmitting groove, the pressing force between the bottom wall of the crank pin mounting hole and the free end end of the crank pin can be improved, so that the crank pin mounting hole is well jointed with the free end of the crank pin. The present invention also provides a crank shaft, a combined crankshaft applying the crank shaft, and an internal combustion engine or compressor applying the combined crankshaft.

【技术实现步骤摘要】

【技术保护点】
１．一种曲柄，其特征在于，所述曲柄为扁圆柱体，所述曲柄上设置有在曲柄一端面开口的偏心孔，用于在与曲拐装配构成完整曲轴时容纳曲拐之曲柄销的自由端，称为曲柄销安装孔；所述曲柄销安装孔的中心轴线与所述曲柄的中心轴线平行；其中，所述曲柄销安装孔为闷头孔；在所述曲柄销安装孔的底壁上设置有与该安装孔底壁端面同心的环形槽，称为传力槽。

【技术特征摘要】

【专利技术属性】
技术研发人员：王清旭，黎明，黎正中，
申请(专利权)人：北京中清能发动机技术有限公司，
类型：发明
国别省市：11