Top-mounted digital-control tower pumping unit
US8863826B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2009 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Jan 1, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/126
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A top-mounted digital-control tower pumping unit includes a tower frame (1), a power system (2), a drive system, a control system (3), a balance weight box (4), a balance weight positioning cable (5), a driving cable (6), a plurality of cable hangers (7) and a guide wheel mechanism. The guide wheel mechanism is fixed on an operation platform by a rotating shaft, which is convenient for the operator to move the guide wheel mechanism aside during the oil well work-over. The control system, the power system, and the drive system are all mounted closely on an operating platform on the top of the tower frame. The top-mounted digital-control tower pumping unit of the present invention has the advantages of simple structure, convenient maintenance, low cost, stable operation and small noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.