HUB DRIVING SYSTEM

• Main Author: CAI, Xiangyang
• Format: Patent
• Language: Chinese; English; French
• Published: 19.09.2024
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERATION; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

A hub driving system, comprising: an electric motor (1), wherein the electric motor (1) comprises a rotor shaft (13); a speed reducer (2), wherein an input end of the speed reducer (2) is connected to the rotor shaft (13); a housing (3); a hub bearing unit (4), wherein the hub bearing unit (4) is connected to an output end of the speed reducer (2), the rotor shaft (13) is sleeved in the hub bearing unit (4), and the hub bearing unit (4) and the rotor shaft (13) enclose an annular region (S); and an oil seal (5), wherein the oil seal (5) is located between the hub bearing unit (4) and the rotor shaft (13) in the radial direction (R) of the electric motor (1), the oil seal (5) divides the annular region (S) into an electric-motor-side chamber (R1) and a speed-reducer-side chamber (R2), the annular region (S) comprises a tapered surface in the speed-reducer-side chamber (R2), and in an axial cross section of the annular region (S) and in the direction from the electric-motor-side chamber (R1) to the speed-reduce