公开(公告)号：US06331682B1

公开(公告)日：2001-12-18

申请号：US09483612

申请日：2000-01-14

申请人： Randall K. Hopkins ,  Thomas W. Hansson

发明人： Randall K. Hopkins ,  Thomas W. Hansson

IPC分类号： G01G2302

CPC分类号： G01G23/005 ,  G01G23/02

摘要： A tank weigh module includes a bottom plate that has two lower stop blocks protruding upwardly therefrom, and a top plate that has an upper stop block protruding downwardly therefrom into a space between the two upper stop blocks with a block free play clearance therebetween. A restraining pin is arranged to extend through aligned pin receiving holes in all of the stop blocks. In the lower stop blocks, the holes provide a tight friction fit for the pin, while the hole in the upper stop block has a larger diameter and provides a pin free play clearance. Motion of the top plate relative to the bottom plate in the back-and-forth Y-direction is limited to the extent of the block free play clearance. Travel of the top plate in the side-to-side X-direction and in the uplift Z-direction is restrained by the extent of the pin free play clearance. Tilting and twisting about the X-, Y-, and Z-axes are also limited by the pin interacting with the blocks and the blocks interacting with each other. A load cell is secured in position between the top and bottom plates by two fixed securing pins and a third removable securing pin attached to the bottom plate, whereby the securing pins are angularly offset by 120° from each other. The weigh module has a simple construction, installation, and servicing, and provides protection against excess uplift, side loading, and tilting while allow complete free floating operation in a normal operating range.

摘要翻译： 油箱称重模块包括底板，其具有从其向上突出的两个下止动块，以及顶板，其具有从其向下突出的上止动块到两个上止动块之间的空间中，其间具有无块游隙。 限制销布置成延伸穿过所有止动块中的对准销接收孔。 在下止动块中，孔为销提供紧密的摩擦配合，而上止动块中的孔具有较大的直径，并提供无引脚的游隙。 顶板相对于底板在前后Y方向上的运动限于无块游隙的程度。 顶板在侧向X方向和提升Z方向上的行程受到销自由游隙的限制。 关于X轴，Y轴和Z轴的倾斜和扭转也受到与相互作用的块和块相互作用的引脚的限制。 称重传感器通过两个固定的固定销固定在顶板和底板之间的位置，第三可移除固定销附接到底板，由此固定销彼此成角度偏移120°。 称重模块具有简单的结构，安装和维护保护，并提供防止过大隆起，侧向加载和倾斜的保护，同时允许在正常工作范围内完全自由浮动操作。

公开(公告)号：US5703334A

公开(公告)日：1997-12-30

申请号：US612677

申请日：1996-03-08

申请人： Thomas W. Hansson ,  Randall K. Hopkins

发明人： Thomas W. Hansson ,  Randall K. Hopkins

IPC分类号： G01G3/14 ,  G01L1/26 ,  G01G1/00 ,  G01G3/00

CPC分类号： G01L1/26 ,  G01G3/1408 ,  Y10S177/09

摘要： A load to be measured is transmitted to a load cell, such as a compression load cell, through a double piston, single cylinder load transmitter that has a pressure chamber between two pistons in the single cylinder. One piston bears against the load. The other piston bears against the load cell to form a floating link between the load and the load cell when a sufficient pressure is introduced into said pressure chamber to prevent unwanted, off-center load application force components from adversely affecting any measured results. Preferably, at least one axially outwardly facing end surface of the piston bearing against the load cell has a curved end surface area. A rocker pin with a pressure controllable variable length may be formed by making both axially outwardly facing end surfaces curved. Several load transmitters may be arranged in parallel to transmit larger loads into a load cell.

摘要翻译： 要测量的载荷通过双缸活塞，单缸负载变送器传递到诸如压力传感器的测力传感器，单缸负载变送器在单缸中具有两个活塞之间的压力室。 一个活塞靠在负载上。 当足够的压力被引入所述压力室中时，另一个活塞承载在测力传感器上以形成负载和称重传感器之间的浮动连接，以防止不期望的偏心负载施加力分量对任何测量结果产生不利影响。 优选地，活塞的至少一个轴向向外的端表面抵靠测力传感器具有弯曲的端表面区域。 可以通过使两个轴向向外的端面弯曲形成具有压力可变长度的摇杆。 可以并联布置多个负载发射器以将更大的负载传送到测力传感器。