QS-G type rotary joint detailed description

Q series rotary joint type, simple structure, small size, light weight, stable sealing performance, convenient maintenance, is also a kind of application in similar products. Its structure: the outer tube body is directly connected to the roller or the drying cylinder, which is the main rotating part; the finished outer tube body spherical surface, the bottom cover and the impregnated carbon graphite spherical sealing ring together form a sealed dynamic seal friction pair, spherical seal The ring slides in the annular space in the shell, and the close cooperation between the oil-free bearing and the shell allows the rotary joint to be supported freely, so the installation accuracy is not high; after the spherical seal ring is worn, it can be obtained at any time by means of the pre-pressure of the spring. Compensation, the shell slowly moves backwards during compensation, and the degree of wear of the seal can be observed through the engraved line on the outer tube; when steam, oil or other media flows through the spherical seal ring and the oil-free bearing, a formation The thin liquid film provides sealing and lubrication, thereby reducing friction and wear and extending the service life.

The Q-type rotary joint adopts a spherical friction seal structure with good performance, which can automatically adjust the center and automatically compensate. It can be suitable for equipment with low rotation accuracy and poor concentricity; there are only four parts inside, which is simple and The effective structure makes the maintenance more convenient; the material guarantee and the refined spherical surface and bottom surface can provide sufficient service life.

Use parameters

QS type rotary joint usage conditions:

Maximum speed: 100r/min

Maximum temperature: 220°C

Maximum pressure: 18MPa

Applicable medium: saturated steam, superheated steam, superheated water