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Self-lubricating mechanical seal

A mechanical seal, self-lubricating technology, applied in the direction of engine sealing, mechanical equipment, engine lubrication, etc., can solve problems such as spending a lot of time, easy wear of contact surfaces, damage to mechanical seals, etc., to achieve uniform lubrication effect and protect contact. surface, the effect of improving the service life

Active Publication Date: 2021-04-20
武汉宇格电力设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the related technologies mentioned above, the inventor believes that there is the following defect: when running in a dusty environment or a liquid environment with impurities, the moving ring is high-speed and long In the process of time rotation, the contact surface between the moving ring and the static ring keeps friction, and the friction generates heat, which makes the contact surface between the moving ring and the static ring easy to wear, so after a period of use (generally 6-12 Months), the thickness of the moving ring and the static ring will become smaller and smaller until the mechanical seal is damaged and scrapped. It takes a lot of time for the staff to replace the mechanical seal, and the maintenance cost is high. Therefore, the current mechanical seal generally has the problem of low service life. , so it needs to be improved

Method used

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  • Self-lubricating mechanical seal

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Embodiment Construction

[0032] The following is attached figure 1 The application is described in further detail.

[0033] The embodiment of the present application discloses a self-lubricating mechanical seal. refer to figure 1 , The self-lubricating mechanical seal includes a moving ring 1, a static ring 2, a self-lubricating ring 3, a first sealing ring 4, a second sealing ring 5 and an elastic compression member 6.

[0034] The inner and outer diameters of the moving ring 1, the static ring 2, and the self-lubricating ring 3 are the same, and when the self-lubricating mechanical seal is working, the moving ring 1, the static ring 2, the self-lubricating ring 3 and the elastic pressing member 6 are all worn On a rotating shaft, the moving ring 1 is fixed on the main body of the equipment. The materials of the moving ring 1 and the static ring 2 are one of the following materials: hard alloy, alloy steel, high chromium iron, silicon carbide, aluminum oxide, oxide Materials such as zirconium or b...

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Abstract

The invention relates to a self-lubricating mechanical seal, relates to the technical field of mechanical seals, and solves the problem of short service life of a common mechanical seal. The self-lubricating mechanical seal comprises a moving ring and a static ring, a self-lubricating ring is arranged between the moving ring and the static ring, and the surface hardness of the moving ring and the surface hardness of the static ring are both greater than the surface hardness of the self-lubricating ring. Sulfide is added into ductile iron / nodular cast iron / alloy steel to a saturated state to prepare the self-lubricating ring, and the sulfur content in the self-lubricating ring is 0.9%-2.5%. The self-lubricating mechanical seal has a self-lubricating function, and is not prone to abrasion and long in service life.

Description

technical field [0001] The present application relates to the technical field of mechanical seals, in particular to a self-lubricating mechanical seal. Background technique [0002] Mechanical seal (mechanical seal) refers to at least one pair of end faces perpendicular to the axis of rotation, under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, and the cooperation of the auxiliary seal to keep fit and relatively slide to prevent fluid leakage. device. [0003] The main components of the current mechanical seal are the dynamic ring, the static ring and the compression device. During the working process of the mechanical seal, the static ring generally remains stationary, while the dynamic ring will be driven to rotate at high speed and for a long time, and the compression device Driven by the driving force, the moving ring and the static ring are in a state of contact most of the time. [0004] In view of the above-me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/34F16N1/00F16N15/00C22C37/04C22C37/06C22C37/10C22C38/02C22C38/04C22C38/12C22C38/22C22C38/34C22C38/36C22C38/60
Inventor 刘成华蔡春芝
Owner 武汉宇格电力设备有限公司
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