公开(公告)号：US5184754A

公开(公告)日：1993-02-09

申请号：US599433

申请日：1990-10-18

申请人： Thomas N. Hansen

发明人： Thomas N. Hansen

IPC分类号： G01G13/02 ,  G01G13/24

CPC分类号： G01G13/026 ,  G01G13/248

摘要： A gravimetric system for feeding flowable, solid, particulate materials includes an open-topped trough receiving the material from a hopper at one end and discharging it from the other end at a desired rate in terms of weight per unit of time. The trough is formed in two, longitudinally aligned and continuous sections with a rotatable auger extending through the hopper and trough to move the material from the hopper to the discharge end of the trough. The first trough section is fixedly supported and the second section is supported at two spaced points on each side in an essentially frictionless manner by contact of pointed terminal ends of upwardly extending pins with conical recesses in blocks affixed to the sides of the second trough section. One pair of supports, one on each side of the second trough section remote from the end adjacent the first section, is connected to a load cell, whereby the weight of material in this portion of the trough is reflected in an electrical signal which controls the auger speed to adjust the rate of material feed to the desired discharge rate.

摘要翻译： 用于输送可流动的，固体的颗粒材料的重量系统包括开顶槽，其在一端接收来自料斗的材料，并且以每单位时间重量的期望速率将其从另一端排出。 槽形成在两个纵向对齐且连续的部分中，具有延伸穿过料斗和槽的可旋转螺旋钻，以将材料从料斗移动到槽的排出端。 第一槽部被固定地支撑，并且第二部分以基本上无摩擦的方式被支撑在每一侧上的两个间隔的位置，通过向上延伸的销的尖端终端与固定到第二槽部分侧面的块中的锥形凹部接触。 一对支撑件，第二槽部分的远离第一部分的端部的每侧上的一个支撑件连接到称重传感器，由此在该槽的该部分中的材料的重量被反映在电信号中，该电信号控制 螺旋速度将材料进料速率调整到所需的排放速率。