Rotary kiln pinion
We could provide rotary kiln pinion perfectly match the girth gear in the rotary kiln.
In the vast majority of integrated cement plants, rotary kiln drive systems is consisted of a girth gear and pinion.
The rotary kiln pinion meshes with the girth gear. Usually, the pinion has wider teeth than the girth gear to cope with the axial movement of the kiln.
The gearbox drives the pinion through a gear coupling.
Two pinion rollers are mounted on the pinion shaft, at each side of the pinion, and roll onto two girth gear external tracks (which are machined on each side of the girth gear teeth). Thanks to the ‘pushing effect’ (the sum of forces applied on the pinion is a force faced towards the girth gear), the pinion rollers are permanently in contact with the girth gear tracks. This maintains a constant position of the pinion versus the girth gear, and therefore constant centre distance and alignment.
1. constant position of the pinion to the girth gear, and therefore constant meshing conditions and excellent load repartition on the pinion and gear teeth
2. a direct consequence is the increase of pinion and girth gear life
3. reduction of shutdown risk thanks to stable working conditions
4. no more pinion alignment required, backlash and foot root clearance are constant