由于没有转动件，所需维修工作量可减少到最低限度。

Without moving parts, maintenance requirements are cut to a minimum.

锁舌是以其底部铰接销轴为中心的转动件。

The jaws can rotate around the bottom hinged pin shaft.

本实用新型提供了一种扭力机的转动件控制系统，属于机械技术领域。

The utility model provides a control system for controlling the rotating parts of a torsion machine, which belongs to the mechanical technical field.

右箱体（第三、第六号动力头）可转动，满足不同角度水嘴、管件的加工需要。

Right box (third, the first six dynamic head) can rotate, meet different angle water mouth, pipe processing of need;

当转动转向盘时，齿轮即转动，而齿条就移动。

When you turn the steering wheel, the gear spins moving the rack.