ZQ203/125 型钻杆动力钳

特点:

1、采用液气联合控制系统，增强了工作的可靠性。

This tong adopts hydraulic and pneumatic control system so it enhances working reliability.

2、采用上下钳合体结构，避免了钻柱在大扭矩作用下弯曲的可能性，并防止钻柱在卡瓦中打滑。

Upper tong integrates with lower tong to avoid twisting drill pipe bent in big torque operation and to prevent slipping in caliper.

3、本钳采用轻便灵活的钳头浮动方案，使吊装大为简化；自动对中夹紧机构可保证新旧接头卡紧可靠。

This tong has adopted flexible and lighter floating tong head so that the handling is easy and simple, the automatic centralizing mechanism could ensure clamping new or old joint reliable.

4、增强型的钳身和安全门，有效地限制了大扭矩作业时钳头的变形。

The enhanced tong body and safety door could prevent tong head from deformation during large torqueoperation.

5、钳头中独特的坡板与楔形块联接结构，拆装维护极为方便。

The special ramp in the tong head and wedge piece connection structure make the maintenance simpleand easy.

6、气胎离合器不停车换档机构，操作简便，扭矩与转速均能控制，正反方向都可产生最大扭矩和转速。

Operation is easy and simple with pneumatic tyre clutch non-stop shifting mechanism, Torque and speed can be controlled. It can get the biggest torque and the highest speed in clockwise or counter-clockwise.

7、配备了大通径的手动换向调压阀，实现了大扭矩自动卸荷，有效地保护了钻柱接头丝扣。

This tong has equipped hand control and adjusting valve with big diameter hose, so it could unloadautomatically during large torque and protect the drill pipe joint screw efficiently.

8、采用液压吊杆升降钳身高度，推进气缸移送钳身位置，不需人力位移钳体。

This tong has adopted hydraulic lift to raise or decrease the height of tong itself, the moving cylinder could move the tong position so it could save labor.