Hub reduction gear

The invention discloses a hub reduction gear, and belongs to the technical field of reduction gears. The shell component is provided with a shell part and a stand column part which are integrally designed, and a mounting interval extending along an axis O is limited in the shell part; the connecting plate body is fixed at one axial end of the shell part; the planetary gear assembly comprises a gear structure and a support structure, structural optimization design is conducted on the shell component of the hub reduction gear and the planetary gear assembly, the transverse size of the reduction gear can be reduced, and it is guaranteed that the hub reduction gear can be installed and used in a limited space. 本发明公开了一种轮边减速器，属于减速器技术领域，该一种轮边减速器，包括。通过壳体构件，具有一体设计的壳体部和立柱部，且所述壳体部内限定有沿轴线O延伸的安装区间；连接板体，固定于所述壳体部轴向的一端；行星齿轮组件，所述行星齿轮组件包括齿轮结构和支架结构，通过对轮边减速器的壳体构件和行星齿轮组件进行结构优化设计，能够缩小减速器横向尺寸，保证了轮边减速器能够在受限空间内安装使用。