The universal joint of papermaking machinery includes the preparation of raw materials, pulp making, papermaking, and the production of finished rolls or flat sheets, as well as the processing of paper and cardboard. The paper making machinery coupling is an indispensable part of the paper making machinery, which is an important component for transmitting force. The paper making machinery coupling produced by Qingdao Qingshan Transmission Shaft belongs to the cross axis universal coupling, which has a large angle compensation ability. The axis bending angle can generally be between 10 ° and 35 °. Compact and reasonable structure, with high load-bearing capacity.

This coupling has the following product features:

High quality rough flange fork head and welding fork are made of 35CrMo, and the mechanical properties are improved by quenching and tempering treatment

Advanced equipment such as precision machining centers and CNC lathes ensure the machining accuracy of components

Advanced technology and specially designed tooling molds have improved efficiency, ensuring the concentricity, intersection, and perpendicularity of components

The spline shaft forged by structural optimization adopts involute form, and the internal spline is machined by wire cutting without clearance, which improves torque and transmission efficiency

After ensuring the concentricity of each component during smooth operation, the universal joint is connected using a fully automatic welding machine to maintain an overall coaxiality of 0.5mm, resulting in more stable operation and a critical speed of up to 4000 revolutions per minute.

The detection methods include dynamic balancing instrument, hardness tester, flaw detector, and coordinate measuring instrument to ensure the quality of each universal joint in all aspects.