China Petroleum Chemical Corporation

Oil Production Technology Research Institute of Shengli Oilfield Branch of China Petroleum Chemical Corporation

Zejun Zhu

Bin Wei

Guangqi Gao

Zhengquan Cheng

Minxuan Wang

Yan Luo

Jianli Xu

Zhonghui Zhang

Bingsheng Liu

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.

Oil pumping unit

Growing community of inventors

Dongying, China

Zejun Zhu