A gear shifting mechanism at least comprises a gear shifting gear, a gear shifting gear shaft, a gear shifting synchronizer, a gear bearing and a lubricating oil injection mechanism, the gear shifting gear is connected to the gear shifting gear shaft in a sleeved mode through the gear bearing, and the gear shifting gear corresponding to an expected gear is connected with the corresponding gear shifting gear through the gear shifting synchronizer to rotate. One or more through holes are formed in the area, opposite to the gear bearing, of the gear shifting gear shaft, so that the hollow cavity of the gear shifting gear shaft can be communicated with the gear bearing, and lubricating oil injection mechanisms are arranged at the two ends of the gear shifting gear shaft respectively. And therefore, the hollow cavity of the gear shifting gear shaft can be subjected to bidirectional lubricating oil injection. The invention further relates to an electric drive axle comprising the gear shifting mechanism. The invention further relates to an oil injection control method for the gear shifting mechanism. By means of the lubricating device, all the through holes can be guaranteed to be lubricated timely, evenly and fully at all the rotating speeds of the gear shifting gear shaft.
一种换挡机构,其至少包括换挡齿轮、换挡齿轮轴、换挡同步器、齿轮轴承以及润滑油喷射机构,换挡齿轮经由齿轮轴承套接在换挡齿轮轴上,与所期望挡位对应的换挡齿轮借助换挡同步器与对应的换挡齿轮接合而转动,其中,在换挡齿轮轴中与齿轮轴承相对的区域处设置有一个或多个通孔,使得换挡齿轮轴的中空腔体能够与齿轮轴承联通,并且其中,在换挡齿轮轴的两个端部处各自设置有润滑油喷射机构,使得能够对换挡齿轮轴的中空腔体进行双向润滑油喷射。本发明还涉及一种包括如上所述的换挡机构的电驱动桥。本发明还涉及一种用于对如上所述换挡机构的喷油控制方法。借助本发明,能够在换挡齿轮轴的所有转速下均确保对所有通孔的及时且均匀充分润滑。
Gear shifting mechanism, electric drive axle and oil injection control method for gear shifting mechanism
换挡机构、电驱动桥以及用于这种换挡机构的喷油控制方法
2024-10-01
Patent
Electronic Resource
Chinese
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