Oil pumping unit

US8746093B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• Oil Production Technology Research Institute of Shengli Oilfield Branch of China Petroleum Chemical Corporation · CN

Inventors

• Minxuan Wang · Dongying, CN
• Jianli XU · Dongying, CN
• Zhengquan CHENG · Shandong, CN
• Bin Wei · Mechanicville, US
• Zhonghui Zhang · Dongying, CN
• Bingsheng Liu · Dongying, CN
• Guangqi Gao · Dongying, CN
• Yan LUO · Nanhu, CN
• Zejun Zhu · Dongying, CN

Key dates

• Filing date: Jun 29, 2011
• Grant date: Jun 10, 2014
• Expiry date: Sep 11, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/18968
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A crank-type non-beam pumping unit, including a belt, a foundation, a crown sheave, a frame, a support rod, a belt pulley, a pin shaft, a crank, a transmission shaft, and a bracket. The bottom of the frame is disposed on the foundation, and the top of the frame is supported by the support rod. The top of the support rod is hinge connected to the frame, and the bottom of the support rod is hinge connected to the foundation. The bracket is disposed on the foundation, the transmission shaft is disposed on the bracket, and the crank is disposed on the transmission shaft. The crank rotates synchronously with the transmission shaft, and the belt pulley is disposed on one end of the crank via the pin shaft. One end of the belt bypasses the crown sheave, and is connected to a smooth sucker rod.