Truss walking shaft

The utility model discloses a truss walking shaft, which comprises a truss, a walking shaft, a driving device and a driving device, wherein a guide rail and a rack are arranged on the truss; the walking mechanism comprises an installation base, at least one sliding block, a driving assembly and a gear, the sliding block, the driving assembly and the gear are arranged on the installation base, the sliding block is in sliding fit with the guide rail, the driving assembly is in transmission connection with the gear, and the gear is meshed with the rack. The integral structure is stable, installation is convenient, and the problems that the installation space requirement is large, the structure is not compact, and cost is high are solved. 本实用新型公开一种桁架行走轴，包括：桁架，所述桁架上设有导轨和齿条；行走机构，所述行走机构包括：安装基座以及设于所述安装基座上的至少一滑块、驱动组件和齿轮，所述滑块与所述导轨滑动配合，所述驱动组件与所述齿轮传动连接，所述齿轮与所述齿条啮合。本实用新型整体结构稳定，安装方便，解决安装空间需求大、结构不紧凑、成本偏高的问题。