Differential and moveable power tool having this differential
AssigneeTechtronic Cordless GP
InventorsRong Wei Huang, You Liang Chen, Ming Qi Li
Life of this patent
Estimating the term…
Abstract
A differential for a moveable power tool includes an input mechanism, an output gear, a first transmission component and a second transmission component. The input mechanism includes a main input end and an auxiliary input end. When meshing of the output gear and a main input mechanism fails, the first transmission component and the second transmission component engage, and the second transmission component in said engaged state drives the first transmission component to rotate in a predetermined direction, so that the auxiliary input end inputs movement to the output gear. The differential can guarantee the effectiveness and stability of movement transfer, and reduces the occurrence of slippage.
Claims15
A differential for a moveable power tool, the differential being constructed to be capable of driving axles mounted on both left and right sides thereof to rotate around an axis of the axles, wherein the differential comprises:
- an input mechanism, the input mechanism comprising a main input end and an auxiliary input end that rotate as an integral whole around the axis, a differential shell forming the auxiliary input end, and an outer ring gear for receiving outer movement input, the differential shell comprising a pair of shell halves that abut each other in an axial direction, wherein the outer ring gear is at least partially fixed between the pair of shell halves;
- an output gear, the output gear and one of the axles being fixedly engaged in a rotation direction, and the output gear being located between the main input end and the auxiliary input end, wherein the output gear is capable of meshing with the main input end;
- a first transmission component, the first transmission component and the output gear being fixedly connected to each other in the rotation direction;
- and
- a second transmission component, the second transmission component and the auxiliary input end being fixedly connected to each other in the rotation direction,
- wherein the first transmission component and the second transmission component face each other, and, when meshing of the output gear and the main input end fails, the first transmission component and the second transmission component engage, and the second transmission component in an engaged state drives the first transmission component to rotate in the rotation direction.
Dependencies are inferred from the claim text.