Shaft seal device

Abstract

The invention relates to a shaft seal device comprising a fixing seat, a shaft sleeve, a first friction ring group, a guide assembly and a second friction ring group. The shaft sleeve extends into the fixing seat in a penetrating way; the first friction ring group comprises a first rotating friction ring and a first fixed friction ring which are abutted with each other; the guide assembly comprises an abutting ring, a first positioning ring and a second positioning ring which are embedded into each other, wherein the abutting ring is provided with a plurality of through holes penetrated by a plurality of elastic assemblies; and the second friction ring group comprises a second rotating friction ring and a second fixed friction ring. Each elastic assembly props up the first positioning ring and the second positioning ring so that the first fixed friction ring and the second first fixed friction ring can be respectively attached to and connected with the first rotating friction ring and the second rotating friction ring in a friction compensation way, and better sealing and leakage stopping effect is further provided.

Description

technical field [0001] The invention relates to a shaft sealing device, in particular to a shaft sealing device applicable to a double shaft sealing structure. Background technique [0002] Please refer to the existing technology figure 1 and 2 As shown in the prior art shaft sealing device, the shaft sealing device 7 roughly includes a shaft sleeve 71 , a body 72 , a fixed friction ring 73 , a fixed ring 74 and a guide 75 . The shaft sleeve 71 is used to be sleeved on the rotating shaft 76 of a mechanical device, and the shaft sleeve 71 includes a rotating friction ring 711 and a restricting ring 712; the body 72 is fixed at an appropriate position of the mechanical device, and The body 72 has a chamber 721 and several liquid passages 722, the chamber 721 can accommodate the shaft sleeve 71, and each of the liquid passages 722 passes through the outer surface of the body 72 to the chamber 721; The friction ring 73 is also arranged in the chamber 721 of the body 72, and a...

AI Technical Summary

Problems solved by technology

However, the shaft seal device 8 of the prior art "double shaft seal structure" does not have the shaft seal device 7 of the prior art "single shaft seal structure" as mentioned above, which utilizes the guide groove 742 of the fixed ring 74 and the guide piece 75's guide block 751 is designed to be fitted with each other, therefore, the friction compensation bonding effect between the two friction parts 814 and the front and rear supporting parts 824, 825 is relatively insufficient, and still needs to be improved

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