Take differential lock pressure switch's main reducer assembly

The utility model provides a take differential lock pressure switch's main reducer assembly, the utility model relates to a main reducer assembly, including the main casing that subtracts, the initiative taper gear, the mean differential, the differential lock, the differential lock is including the declutch shift shaft, install in proper order at the epaxial return spring of shift fork, the shift fork, cylinderpiston, differential lock pressure switch is installed to the main casing that subtracts on corresponding the terminal position of declutch shift shaft, this differential lock pressure switch is including the contact that fuses in proper order, a screw rod, the hexagon, standard bayonet joint and install the nut on the screw rod, the contact contacts with the terminal tip of declutch shift shaft, the standard bayonet joint is connected with car wiring harness. The utility model discloses hanging the phenomenon that does not have electric signal transmission to give the driver behind the differential lock in the time of can avoiding the vehicle to skid, preventing effectively that the vehicle tyre from gnawing child and early wearing and tearing, prolonged the life that whole car includes the tire, can avoid main by the tooth and hair eager phenomenon of takeing root, its is small, compact structure is simple, and maintenance is convenient, and low in production cost is applicable to the demand in high -speed tractor market.