An electric drive axle of a wheel loader comprises an axle housing and electric wheels arranged at the two ends of the axle housing, and the axle housing comprises a shell body and first flanges arranged at the two ends of the shell body; the electric wheel comprises a speed reducer arranged in the rim, a walking motor arranged in the axle housing and a brake arranged in the axle housing; the brake is arranged on a brake mounting seat at the inner end of the walking motor; the brake comprises a cylinder body, a piston arranged in the cylinder body, a fixed friction plate, a movable friction plate and a brake disc, the brake disc is arranged between the fixed friction plate and the movable friction plate, the piston can drive the movable friction plate to be close to the fixed friction plate, and the fixed friction plate is fixed on the cylinder body; one end of an output shaft of the walking motor extends and extends into the brake, the extending shaft of the walking motor is provided with a transition spline, and the brake disc is sleeved on the transition spline. The problem of low transmission efficiency of a traditional mechanical bridge is solved; the problem that an existing caliper type brake electric wheel structure mode needs a large space is solved. The problem that an existing wet brake electric wheel structure is high in manufacturing cost is solved.
一种轮式装载机电驱动桥,包括桥壳和设在桥壳两端的电动轮,桥壳包括壳体和设在壳体两端的第一法兰;电动轮包括设在轮辋内的减速器、设在桥壳内的行走电机和设在桥壳内的制动器;制动器设在行走电机内端的制动器安装座上;制动器包括缸体、设在缸体内的活塞、固定摩擦片、活动摩擦片和制动盘,制动盘设在固定摩擦片与活动摩擦片之间,活塞能驱动活动摩擦片靠近固定摩擦片,固定摩擦片固定在缸体上;行走电机输出轴一端延长并伸入制动器内,行走电机延长轴设有过渡花键,制动盘套在过渡花键上。解决传统机械桥传动效率低问题;解决现有采用卡钳式制动器电动轮结构形式需求空间大问题;解决现有采用湿式制动器电动轮结构制造成本高问题。
Electric drive axle of wheel loader
一种轮式装载机电驱动桥
2024-10-25
Patent
Electronic Resource
Chinese
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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