Polish rod clamping device

• Main Authors: HU TIEGANG, FENG XIANLIN, LI CAIYUN, SONG XIAOLIN, DU HAIFENG, ZHANG WEI, WENG LIJUAN
• Format: Patent
• Language: Chinese; English
• Published: 12.11.2019
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model relates to a polish rod clamping device, and belongs to the technical field of machinery. The polish rod clamping device comprises at least one clamp, any clamp comprises a first clamping piece, a second clamping piece, a support and a first hydraulic cylinder, and the first clamping piece is fixedly connected with the support; the first hydraulic cylinder is fixedly connected with the support and comprises a piston rod, the piston rod is fixedly connected with the second clamping piece, and the direction of the connecting line of the second clamping piece and the first clamping piece is parallel to the length direction of the piston rod. According to the utility model, the efficiency of replacing the polish rod is improved. The polish rod clamping device is used for clamping polish rods. 本实用新型是关于一种光杆夹持装置，属于机械技术领域。所述光杆夹持装置包括：至少一个卡具，任一卡具包括第一夹持件、第二夹持件、支架和第一液压缸，第一夹持件与支架固定连接；第一液压缸与支架固定连接，第一液压缸包括活塞杆，活塞杆与第二夹持件固定连接，且第二夹持件与第一夹持件的连线的方向与活塞杆的长度方向平行。本实用新型实现了提高更换光杆的效率。本实用新型用于夹持光杆。