Trolley clamping device for cold-rolled steel pipe

The utility model discloses a trolley clamping device for a cold-rolled steel pipe, which relates to the technical field of cold-rolled steel pipe production and comprises a hollow shaft for accommodating the steel pipe, the hollow shaft is slidably connected to a conical sleeve, an inclined surface is arranged on the inner side of the conical sleeve, and the inclined surface is slidably matched with a clamping jaw. The clamping jaw and the hollow shaft are axially limited and are in sliding connection in the circumferential direction, and the conical sleeve is in sliding connection to a steel pipe cold rolling rail. The device can work at a fixed position, so that automation is realized, and the efficiency is improved. 本实用新型公开了一种冷轧钢管用小车夹持装置，涉及冷轧钢管生产技术领域，包括用于容纳钢管的空心轴，所述空心轴滑动连接于锥形套，所述锥形套内侧设有斜面，所述斜面滑动配合有卡爪，所述卡爪与所述空心轴轴向限位并且周向滑动连接，所述锥形套滑动连接于钢管冷轧轨道上。本实用新型可以在固定位置工作，以此实现自动化，提高效率。