公开(公告)号：US06672461B2

公开(公告)日：2004-01-06

申请号：US10033286

申请日：2001-12-26

申请人： Lawrence J. Miller ,  Richard K. Liggett ,  Robert Prachar

发明人： Lawrence J. Miller ,  Richard K. Liggett ,  Robert Prachar

IPC分类号： B04C306

CPC分类号： B65G53/60

摘要： An air material separator may be used to separate scrap from a conveying air flow while having a relatively low weight and short height so that the separator may be positioned within today's single-story manufacturing or processing facilities. The air material separator of the invention includes a generally cylindrical inlet chamber having a spiral wall that directs the inlet flow circumferentially and downwardly. An outlet chamber is positioned below the inlet chamber and includes a conical, perforated wall that allows the conveying air flow to escape through the perforated wall. The scrap carried by the conveying air flow cannot pass through the perforated wall and moves down and out an outlet at the bottom of the conical wall. The overall height of the device is substantially less than prior art air material separators.

摘要翻译： 空气材料分离器可以用于将废料与输送空气流分离，同时具有相对较低的重量和短的高度，使得分离器可以位于当今的单层制造或加工设施内。 本发明的空气材料分离器包括大致圆柱形的入口室，其具有螺旋壁，其引导入口流周向和向下。 出口室位于入口室下方并且包括允许输送空气流通过穿孔壁逸出的圆锥形穿孔壁。 由输送空气流携带的废料不能通过穿孔壁并向下移动并离开锥形壁底部的出口。 装置的整体高度明显小于现有技术的空气材料分离器。

公开(公告)号：US4318451A

公开(公告)日：1982-03-09

申请号：US153400

申请日：1980-05-27

申请人： Richard K. Liggett

发明人： Richard K. Liggett

IPC分类号： B62D1/22 ,  B62D5/06 ,  B62D5/08

CPC分类号： B62D1/22 ,  B62D5/06

摘要： A dual steering system for use on a material handling vehicle having a chassis with front steerable wheels and an upperstructure movably supported from the chassis for rotary movement about a connecting center pin. The vehicle has a main truck cab on the chassis, from which the vehicle may be driven over road to a selected site, and an operator cab on the upperstructure from which the excavator vehicle may be operated and also driven for short distances. When the vehicle is driven over road, the vehicle is steered from a steering wheel in the main truck cab, and hydraulic power is provided by a hydraulic power supply mounted on the chassis. When the excavator is controlled from the operator cab, the vehicle is steered with a joy stick and hydraulic power is supplied from an alternate hydraulic supply on the upperstructure. Thus, two alternate but interconnected sources of hydraulic fluid are utilized to provide power to a hydraulically powered, mechanically controlled steering gear. Operatively connected to the mechanical input of the chassis steering gear is the output of a tee gear box which has two rotary mechanical inputs for controlling the output. One rotary input to the tee gear box is from the steering wheel located in the main truck cab on the chassis. A second rotary input to the tee gear box is provided by a hydraulic torque motor which is controlled through the joy stick steering device in the operator cab on the upperstructure.

摘要翻译： 一种用于材料搬运车辆的双转向系统，其具有具有前可转向轮的底盘和从底盘可移动地支撑的上部结构，用于围绕连接中心销旋转运动。 车辆在底盘上具有主要的卡车驾驶室，车辆可以从该车辆驾驶到道路上到选定的地点，以及在上部结构上的操作者驾驶室，挖掘机车辆可从该驾驶室操作并且也被短距离地驱动。 当车辆在道路上行驶时，车辆从主车厢的方向盘转向，液压动力由安装在底盘上的液压动力源提供。 当挖掘机从驾驶室控制时，车辆用操纵杆转向，并且液压动力从上部结构上的备用液压供应器供应。 因此，利用液压流体的两个交替但相互联系的来源为液压动力的机械控制的舵机提供动力。 与底盘舵机的机械输入连接的是三通齿轮箱的输出，其具有用于控制输出的两个旋转机械输入。 来自三通齿轮箱的一个旋转输入来自位于机箱上的主卡车驾驶室中的方向盘。 三通齿轮箱的第二个旋转输入由液压扭矩马达提供，液压扭矩马达通过上部结构中的操作员驾驶室中的操纵杆转向装置控制。