公开(公告)号：US06857861B2

公开(公告)日：2005-02-22

申请号：US10146508

申请日：2002-05-15

申请人： Gary J. Condon ,  Mark T. Klingensmith ,  James Cavanaugh

发明人： Gary J. Condon ,  Mark T. Klingensmith ,  James Cavanaugh

IPC分类号： F04B7/02 ,  F04B15/02 ,  F04B7/00

CPC分类号： F04B15/023 ,  F04B7/0241 ,  F05C2203/08 ,  F05C2203/0826 ,  Y10S417/90 ,  Y10T137/86501

摘要： A pivot pipe for a two-cylinder thick material sludge pump is designed to reduce the rate of wear of the sealing surfaces and flow bores of the pivot pipe and cooperating outlets on the two pump cylinders. As the pivot pipe oscillates from one pump cylinder to the other pump cylinder the contacting sealing surfaces are subjected to abrasion and impact wear. The present invention limits the rate of wear between the contacting sealing surfaces and a portion of the flow bore by fixing monolithic wearing rings on the upstream end of the pivot pipe and on the outlets of the two pump cylinders. The monolithic wearing rings are made of a hard materials such as cemented tungsten carbide.

摘要翻译： 用于双缸厚料泥浆泵的枢轴管设计成可以降低两个泵缸上的枢轴管和配合出口的密封表面和流动孔的磨损率。 当枢轴管从一个泵缸振动到另一个泵缸时，接触的密封表面受到磨损和冲击磨损。 本发明通过在枢轴管的上游端和两个泵缸的出口上固定整体式耐磨环来限制接触密封表面和流动孔的一部分之间的磨损速率。 整体磨损环由硬质材料制成，如硬质合金碳化物。