Preinstalled secondary mechanical sealing device with jetting prevention function

The utility model discloses a preinstalled secondary mechanical sealing device with a jetting prevention function. The device is characterized by comprising an outer press cover, an inner press cover, a shaft sleeve, a primary sealing assembly and a secondary sealing assembly, wherein a shaft sleeve...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	GUO WENDE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a preinstalled secondary mechanical sealing device with a jetting prevention function. The device is characterized by comprising an outer press cover, an inner press cover, a shaft sleeve, a primary sealing assembly and a secondary sealing assembly, wherein a shaft sleeve is sheathed on the rotary shaft, the inner press cover is sheathed at the medium end of the shaft sleeve, a primary sealing cavity is formed between the inner wall of the inner press cover and the outer wall of the shaft sleeve, the primary sealing assembly is arranged in the primary sealing cavity, the outer press cover is sheathed at the atmosphere end of the shaft sleeve, a secondary sealing cavity is formed between the inner wall of the outer press cover and the outer wall of the shaft sleeve, a secondary sealing assembly is preinstalled in the secondary sealing cavity, the secondary sealing assembly comprises a preinstalled secondary movable ring assembly and a secondary static ring assembly which are separat