Running and parking integrated wet brake drive axle

• Main Authors: LIN XIAOQIAN, CHENG DAHAI, WANG QUANHUI
• Format: Patent
• Language: Chinese; English
• Published: 21.11.2023
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; 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; AXLES FOR WHEELS OR CASTORS; BLASTING; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; CASTORS; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INCREASING WHEEL ADHESION; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLE WHEELS; VEHICLES IN GENERAL; WEAPONS

The invention discloses a running and parking integrated wet brake drive axle which comprises an axle housing mechanism, a main reduction mechanism, a brake mechanism and a hub reduction part mechanism. The axle housing mechanism comprises an axle housing assembly; the main reduction mechanism comprises a main reduction shell assembly and a limited slip differential assembly. The brake mechanism comprises a wet brake assembly; the hub reduction mechanism comprises a hub assembly, a half shaft assembly, a first-stage planetary transmission assembly, a second-stage planetary transmission assembly and a gear ring supporting assembly. The same piston is adopted for traveling braking and parking braking, the braking safety is improved, the wet brake adopts an independent lubricating box body and a heat dissipation system, and the high temperature generated by braking sliding friction is effectively reduced; under the large-load working condition, lubricating pressure oil of the brake is effectively prevented from