The helical gear reducer includes: a casing, an input cylindrical gear, a front transmission gear, a front cylindrical gear, a rear transmission gear, a rear cylindrical gear, an output shaft gear, and an output shaft. Among them, the input cylindrical gear meshes with the front transmission gear, the front transmission gear is fixedly connected to the front cylindrical gear, the front cylindrical gear meshes with the rear transmission gear, and the rear transmission gear is fixedly connected to the rear cylindrical gear, The rear cylindrical gear meshes with the output shaft gear, and the output shaft gear is fixedly connected to the output shaft. The input cylindrical gear, front transmission gear, front cylindrical gear, rear transmission gear, rear cylindrical gear, and output shaft gear are all helical gears. This product uses helical gears instead of traditional spur gears, which have good meshing performance, stable transmission, low noise, high overlap, low load on the gears, and high bearing capacity, ensuring that the reducer remains safe and reliable after long-term operation.

The helical gear reduction mechanism solves the problem of complex structure and large space occupation of coaxial reduction boxes in existing technologies. The helical gear reduction mechanism includes a frame, as well as a driving shaft, a driven shaft coaxial with the driving shaft, and a connecting rod vertically fixed to the driven shaft between the driving shaft and the driven shaft. One end of the driving shaft is equipped with a first gear, and both ends of the connecting rod are equipped with a second gear. The middle part of the connecting rod is fixed to the driven shaft, and a third gear is fixed to the frame. The third gear is connected to the driven shaft through bearings, and the second gear is respectively connected to the first gear The third gear engages. This product has a simple structure and small volume.