公开(公告)号：US6145859A

公开(公告)日：2000-11-14

申请号：US179568

申请日：1998-10-27

申请人： August Altherr ,  Fritz Glaser ,  Werner Heim ,  Ewald Rudy ,  Heinz Schwegler ,  Michael Teich ,  Martin Trinler ,  Klaus Zahn

发明人： August Altherr ,  Fritz Glaser ,  Werner Heim ,  Ewald Rudy ,  Heinz Schwegler ,  Michael Teich ,  Martin Trinler ,  Klaus Zahn

IPC分类号： B60G9/00 ,  B60G17/04 ,  B60G21/073 ,  B60G9/99

CPC分类号： B60G21/073 ,  B60G17/0416 ,  B60G9/003 ,  B60G2500/02

摘要： A hydro-pneumatic axle spring suspension system for the driven axle of an agricultural utility vehicle, in particular for the front axle of an agricultural tractor, is described, which contains at least one hydraulic cylinder arranged between the vehicle chassis and axle body. The rod end chamber and the piston end chamber of the hydraulic cylinder are each connected with at least one accumulator. Furthermore a valve circuit supplied by a hydraulic pump is provided for the control of the level, which controls the pressure of the accumulators as a function of the load on the axle body.To improve the operating and spring characteristics of the utility vehicle it is proposed that the mechanical and hydraulic components be designed for a spring suspension under maximum load of the axle body. The valve circuit is configured and controlled in such a way that in the accumulators an adequate pressure is constantly maintained in order to make possible a spring suspension of the axle body under all load and operating conditions of the vehicle.

摘要翻译： 描述了一种用于农用车辆的驱动轴的特别用于农用拖拉机的前轴的液压气动轴弹簧悬架系统，其包括布置在车辆底盘和车身之间的至少一个液压缸。 液压缸的杆端室和活塞端室各自与至少一个蓄能器连接。 此外，由液压泵提供的阀门电路被提供用于控制水平，其根据车身上的负载来控制蓄能器的压力。 为了提高多用途车的运行和弹簧特性，提出机械和液压部件设计用于在轴体最大载荷下的弹簧悬架。 阀门电路的构造和控制方式使得在蓄能器中始终保持足够的压力，以便在车辆的所有负载和操作条件下使得轴体的弹簧悬架成为可能。