In the device of pipeline rotary joint, the spring guide installed in a centered manner can move. The thrust washers that fix these bolts are mounted on them in a movable manner, and the cam ring is fixedly installed in the housing. During the movement of the spring guide caused by the adjustment motion of the rotary joint suspension device, the larger force from the spring guide is transmitted to the cam ring through the bolt. However, the rotary joint bearings can only absorb relatively small forces in these situations, so the counterweight sought by the device can only be limited to a relatively small weight.
The pipeline rotary joint can provide a weight compensating rotary joint with baozheng function, and the rotary joint can be economically manufactured with a simple and compact structure.
