The invention belongs to the field of crawler type tractor drive axles and relates to a planetary differential steering drive axle of a crawler vehicle. The planetary differential steering drive axleof the crawler vehicle comprises a shell, a steering input shaft and a driving input shaft. Big gear wheels, dual gears, a steering shaft, a driving rear shaft, a bevel gear, driving wheels and planetary gear mechanisms. The steering input shaft, the steering shaft and the driving input shaft are mounted on the shell. The dual gears are in key connection with the steering shaft. The planetary gearmechanisms are symmetrically arranged on the two sides of the driving input shaft. The planetary differential steering drive axle has the beneficial effects that the multi-drive steering technology is adopted, so that the small steering radius is easier to achieve, the 360-degree in-situ turning can be achieved, the disc-type stepless steering is achieved, the work of a vehicle is stable, and theoperating condition of operators is improved; and the planetary wheel speed reduction is adopted, the reduction ratio is larger, and the structure is more compact. A plurality of driving modes can beconfigured, such as a precursor and a rear drive, the matching power is rich, and the planetary differential steering drive axle can be used in vehicles such as mechanical multi-gear and hydraulic speed change.
本发明属于履带式拖拉机驱动桥领域,特别是一种履带车辆行星差速转向驱动桥,包括壳体、转向输入轴和驱动输入轴、大齿轮、双联齿、转向轴、驱动后轴、锥齿轮、驱动轮和行星轮机构,转向输入轴、转向轴和驱动输入轴都安装在壳体上,双联齿键接在转向轴上,行星轮机构对称布置在驱动输入轴两侧,本发明的有益效果:一是采用多驱动转向技术,因此更容易实现较小的转向半径,亦可360°原地转弯,盘式无极转向,车辆工作平稳,改善操作人员的工作条件;二是采用行星轮边减速,减速比更大,结构更为紧凑。可配置多种驱动方式,比如前驱、后驱,搭配动力丰富,可用于机械式多档和液压式变速等车辆中。
Planetary differential steering drive axle of crawler vehicle
一种履带车辆行星差速转向驱动桥
2020-04-17
Patent
Electronic Resource
Chinese
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