公开(公告)号：US20220341418A1

公开(公告)日：2022-10-27

申请号：US17728622

申请日：2022-04-25

申请人： Deuri Petroleum Equipment (Qingdao) Co., Ltd., aka

发明人： Cong Zhang

IPC分类号： F04B53/18 ,  F04B47/02 ,  E21B43/12

摘要： An assembly for dispersing a lubricant upon a long stroke oil well rig's chain coupling roller trolley, the assembly incorporating a track frame receiving the roller trolley for leftward and rightward rolling motions; at least a first dip bucket fixedly attached to a lower end of the track frame; a front nozzle connected operatively to the at least first dip bucket for rearwardly emitting portions of the lubricant; an underlying lubricant well adapted for receiving and filling the at least first dip bucket; a rear conduit positioned for collecting the rearwardly emitted portions of the lubricant; a collection pocket underlying the rear conduit; a rear nozzle connected operatively to the collection pocket for forwardly emitting the portions of the lubricant toward the roller trolley.