公开(公告)号：US20180142540A1

公开(公告)日：2018-05-24

申请号：US15359293

申请日：2016-11-22

申请人： Maorong Li

发明人： Maorong Li

IPC分类号： E21B43/12 ,  F04B47/02

CPC分类号： F04B47/026 ,  F04B9/02 ,  F04B17/03 ,  F04B53/14

摘要： The invention discloses a new type of an intelligent pumping unit, including a counter weight box whereas a first driven sprocket is provided on a top inside of said counter weight box and a second driven sprocket is provided at a bottom inside of said counter weight box, and a pedestal whereas an electric motor and a reducer mounted thereto; the reducer, with a driving sprocket connected on its output shaft, is driven to rotate by the electric motor via a belt.

公开(公告)号：US20180142777A1

公开(公告)日：2018-05-24

申请号：US15359352

申请日：2016-11-22

申请人： Maorong Li

发明人： Maorong Li

IPC分类号： F16H57/05 ,  F16H57/04

CPC分类号： F16H57/05 ,  F04B9/02 ,  F04B19/16 ,  F16H2019/0686

摘要： The present invention discloses a non-revolving sprocket-chain structured pumping unit including a auto-lubricating sprocket and a chain, and a pedestal; an oil tank and a driving sprocket are provided on said pedestal; the driving sprocket is immersed into the oil tank at a certain depth; and the oil tank confines a tank-shaped space with a certain amount of a lubricating oil therein; the pumping unit also comprises an oil brush which is attached to the chain.

公开(公告)号：US20180142766A1

公开(公告)日：2018-05-24

申请号：US15359390

申请日：2016-11-22

申请人： Maorong Li

发明人： Maorong Li

IPC分类号： F16H19/06 ,  F04B53/14

CPC分类号： F16H19/0622 ,  F04B9/02 ,  F04B17/03 ,  F04B53/14 ,  F16H2019/0668

摘要： The invention discloses an intelligent pumping unit with a sprocket force reduction system; the intelligent pumping unit further comprises an upper fixing end, a lower fixing end and a chain; the upper fixing end and the lower fixing end act as a starting end and a terminal end for fixing the chain.