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Rotating shaft sealing structure

A technology of sealing structure and rotating shaft, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve problems such as leakage, and achieve the effect of improving use efficiency, not easy to loosen, and good sealing effect

Active Publication Date: 2015-04-08
NANTONG KNEADING MIXING MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general shaft seal structure only has the first seal, but it will leak after a short time of use

Method used

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  • Rotating shaft sealing structure
  • Rotating shaft sealing structure

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Embodiment Construction

[0017] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0018] like figure 1 As shown, the main body of the present invention is a rotating shaft 1, and a first sealing device 3 is provided at the joint between the rotating shaft 1 and the workpiece 2. The first sealing device 3 includes a metal sealing ring A3a, a fluorine rubber ring 3b and a metal locking ring 3c. The metal sealing ring A3a covers the gap between the rotating shaft 1 and the workpiece 2 in a circular shape. The inside of the metal sealing ring A3a is filled with a fluorine rubber ring 3b. The outer ring of the metal sealing ring A3a is provided with a screw hole 4, through which the corresponding screw 5 It is fixedly connected with the metal lock ring 3c, and on this basis, it also includes a second sealing device...

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Abstract

The invention provides a rotating shaft sealing structure comprising a rotating shaft. A first sealing device is arranged at the connection of the rotating shaft and workpiece and comprises a metal seal ring A, a fluorine rubber ring and a metal locking ring; the metal seal ring A is circular, coats the gap of the connection of the rotating shaft and workpiece and is filled with the fluorine rubber ring; the structure further comprises a second sealing device; the second sealing device is fixedly connected to the first sealing device on the rotating shaft axially in the same row through a threaded hole; the metal locking ring is fixedly connected to the second sealing device through the threaded hole formed in the second sealing device. The structure adopts double seals, the fluorine rubber ring with lips is arranged additionally inside, the two lips can be assembled oppositely during assembly; a grease ring is arranged in the middle and is filled with vacuum grease through a grease feed port, the fluorine rubber ring with the lips can be lubricated constantly and is prevented from dry grinding, the two end sealing effect is fine through the bidirectional lip seal, and leakage is eliminated.

Description

technical field [0001] The invention relates to a rotary shaft seal structure, which belongs to the field of shaft seal manufacture. Background technique [0002] Sealed means tightly closed. The words come from Jin Gehong's "Baopuzi Jindan": "Yin Zidan's method: use mica water and pills, seal them in the Jinhua Pond, come out in one year, take a knife, and you will be five hundred years old if you take a catty." Sealing can be done. It is divided into two categories: static seal and dynamic seal. Sealing is a component or measure that prevents fluid or solid particles from leaking from adjacent joint surfaces and prevents external impurities such as dust and moisture from intruding into the interior of the machine. Static seal refers to the seal used to seal letters and wills that tightly closes the airtight container. [0003] The sealing material should meet the requirements of sealing function. Due to the different media to be sealed and the different working conditi...

Claims

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Application Information

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IPC IPC(8): F16J15/28F16J15/32F16J15/3232F16J15/3268
CPCF16J15/28F16J15/3232F16J15/324F16J15/3268
Inventor 王均炎
Owner NANTONG KNEADING MIXING MACHINE
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