Rotating shaft sealing device

A technology of sealing device and rotating shaft, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of limited use, uncompensated shaft eccentricity, polluting the environment, etc., to reduce contact wear, work stably and reliably, Effective sealing performance

Active Publication Date: 2014-04-16
马鞍山市荣亿密封材料有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The packing type seal mainly forms a sealing cavity by adding a sleeve outside the rotating shaft. The graphite packing (or asbestos, PTFE, etc.) is pressed in the sealing cavity to achieve the sealing effect. There will be gaps, no compensation for the eccentricity of the shaft, resulting in leakage, polluting the environment, and affecting the safe operation of the equipment
The installation and maintenance of the mechanical seal is troublesome, and it is not suitable for high temperature (above 350 degrees) environment, and its use has limitations

Method used

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  • Rotating shaft sealing device

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Embodiment Construction

[0011] Such as figure 1 As shown, a rotating shaft sealing device includes a rotating shaft 13, a split branch ring 1 is sleeved on the bottom end of the rotating shaft 13, and a V-shaped sealing packing 2 is installed above the split branch ring 1. The outer side of the upper rotating shaft 13 of the V-shaped sealing packing 2 is covered with a gland 3 with a pressure ring, and a split moving ring-6 is set above the gland 3. On the split surface of the split moving ring-6 Coat the contact surface with the rotating shaft 13 with sealant, and tighten the bolt 16 to make the split moving ring 6 and the rotating shaft 13 rotate fixedly, and a split sealing shell 4 is arranged on the outer side of the rotating shaft 13 above the gland 3 , the upper and lower ends of the split-type sealed casing 4 are respectively bent outwards, and the lower end of the split-type sealed casing 4 is fixedly connected with the gland 3 through bolts 2 8, and the split-type moving ring 1 6 and the spl...

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Abstract

The invention discloses a rotating shaft sealing device comprising a rotating shaft. The bottom end of the rotating shaft is sleeved with a split support ring. V-shaped sealing filler is arranged above the split support ring. A pressure cover with a pressure ring sleeves the outside of the rotating shaft above the V-shaped sealing filler. A first split moving ring sleeves the top of the pressure cover. Split faces of the first split moving ring and a contact face of the rotating shaft are coated with sealant, and the first split moving ring and the rotating shaft are rotatably fixed through first rotating bolts. A split sealing shell is arranged outside the rotating shaft above the pressure cover. Both the upper and lower ends of the split sealing shell are bent out. The lower end of the split sealing shell is fixedly connected with the pressure cover through second bolts. The original filling seal is modified into the V-shaped seal, contact wear of the rotating shaft is reduced, sealing performance is more effective, the sealing effect remains unchanged even when the rotating shaft is eccentric, and the rotating shaft sealing device is capable of operating stably and reliably and is long in service life.

Description

technical field [0001] The invention relates to the technical field of shaft sealing, in particular to a rotating shaft sealing device. Background technique [0002] Rotary shafts widely exist in various transmission processes, such as mixers in chemical reactors (in petrochemical, metallurgy, and electric power production), water pumps, fans, and electric switch doors in fluid pipelines. [0003] There are two traditional sealing forms, one is packing seal; the other is mechanical seal. [0004] The packing type seal mainly forms a sealing cavity by adding a sleeve outside the rotating shaft. The graphite packing (or asbestos, PTFE, etc.) is pressed in the sealing cavity to achieve the sealing effect. There will be a gap, and there will be no compensation for the eccentricity of the shaft, resulting in leakage, polluting the environment, and affecting the safe operation of the equipment. The installation and maintenance of the mechanical seal is troublesome, and it is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/16F16J15/14
Inventor 祁博渊仝庆
Owner 马鞍山市荣亿密封材料有限责任公司
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