抽油杆自动旋转防脱器

Sucker Rod Automatic Spin Trip Preventer

抽油杆自动旋转防脱器是利用驴头上、下运动中的惯性，通过摆轮驱动蜗轮、蜗杆旋转机构，从而带动抽油杆作单向旋转，可以有效防止抽油杆脱扣事故的发生。该抽油杆自动旋转防脱器具有结构精巧、原理可行、工作可靠、安装保养方便等特点，此外还具有防振、定扭矩旋转等性能。

The trip preventer uses the inertia in up and down movement of the horsehead, through driving the rotating mechanism of the worm wheels and worms with balance wheel makes sucker rod revolve undirectionally,thus the trip accident can be prevented effectively. The trip preventer has the following advagtages: ingenious in construction, feasible in its principle, reliable in operation, convenient for installation and maintainance. In addition, it also has the performances of shakeproof and definite torque spin etc.