Basic knowledge of rotary joints

Thread Content

1. Basic knowledge of hydraulic rotary joints. A rotary joint is a sealing connection device that transfers fluid media from a static system to a dynamically rotating system. Rotary joints are classified by type into: high-pressure rotary joints, high-temperature rotary joints, high-speed rotary joints, water-cooled rotary joints, hydraulic rotary joints, pneumatic rotary joints, etc. The applications of rotary joints cover almost all manufacturing industries, such as metallurgy, machine tools, power generation, petroleum, rubber, plastics, textiles, printing and dyeing, pharmaceuticals, cigarette manufacturing, papermaking, food processing, and feed production. Hydraulic rotary joints can have their connection methods selected based on operating conditions. It features independent pipelines, allowing selection based on different operating conditions to achieve maximum efficiency. The rotary joint contains two precision bearings, enabling smooth and reliable operation; it is robust and flexible, with a low friction coefficient, allowing it to operate at high speeds. Generally speaking, hydraulic rotary joints are devices used to convey hydraulic fluid to hydraulic actuators and similar components mounted on rotating equipment. Advantages of hydraulic rotary joints: Thanks to the advantages of hydraulic transmission over electrical and mechanical transmission, hydraulic systems are being used more and more widely in various industries. The application of hydraulic rotary joints is becoming increasingly widespread. If the hydraulic actuator is fixed relative to the fluid source, a steel pipe can be used to deliver the fluid to the actuator. If the actuator moves slightly relative to the medium source (moving, rotating, swinging), a high-pressure hose connection can be used. If there is a hydraulic cylinder on a high-speed rotating shaft, a rotary joint is required to deliver fluid to it.