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Floating oil seal provided with ceramic-dispersion-strengthened metal wear-resistant belts and engineering plastic ring bodies

A technology of dispersion strengthening and engineering plastics, which is applied to engine seals, engine components, mechanical equipment, etc., can solve the problems of high cost and low productivity, and achieve the effects of increasing service life, improving wear resistance, and reducing production costs

Inactive Publication Date: 2016-04-20
李纯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process saves rare metals, but it is limited by equipment, low productivity and high cost
[0009] To sum up, the current floating oil seals with various molding methods have various deficiencies and defects in terms of service life, performance, productivity, cost, etc.

Method used

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  • Floating oil seal provided with ceramic-dispersion-strengthened metal wear-resistant belts and engineering plastic ring bodies
  • Floating oil seal provided with ceramic-dispersion-strengthened metal wear-resistant belts and engineering plastic ring bodies
  • Floating oil seal provided with ceramic-dispersion-strengthened metal wear-resistant belts and engineering plastic ring bodies

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as image 3 As shown, the ceramic dispersion strengthened metal wear-resistant belt and engineering plastic ring body floating oil seal in this embodiment include a pair of sealing ring bodies 1 with symmetrical upper and lower structures, and the sealing ring body 1 is formed by injection molding of carbon fiber modified PTFE. In this way, the outer side of the sealing ring body 1 is provided with a groove 3 for arranging the sealing ring 2, and the sealing ring 2 is arranged in the groove. The working surface 4 of the sealing ring body 1 is provided with a ring of wear-resistant belt assembly groove 5, and the width of the wear-resistant belt assembly groove 5 is l 2 Accounted for the total width of the working face l 1 75%, a ring of wear-resistant belt 6 is fixedly installed in the wear-resistant belt assembly groove 5. The wear-resistant belt assembly groove 5 is opened on the inner edge of the working surface 4 . The wear-resistant band 6 is made of cerami...

Embodiment 2

[0050] Such as Figure 4 As shown, the ceramic dispersion strengthened metal wear-resistant belt and engineering plastic ring body floating oil seal of this embodiment include a pair of sealing ring bodies 1 with symmetrical upper and lower structures, and the sealing ring body 1 is made of ABS engineering modified by glass fiber. Made of plastic injection molding, the outer side of the sealing ring body 1 is provided with a groove 3 for arranging the sealing ring 2, and the sealing ring 2 is arranged in the groove. The working surface 4 of the sealing ring body 1 is provided with a ring of wear-resistant belt assembly groove 5, and the width of the wear-resistant belt assembly groove 5 is l 2 Accounted for the total width of the working face l 1 60%, a ring of wear-resistant belt 6 is fixedly installed in the wear-resistant belt assembly groove 5. The wear-resistant belt assembly groove 5 is opened on the inner side of the working surface 4 . The wear-resistant belt 6 is m...

Embodiment 3

[0053] Such as Figure 5 As shown, the ceramic dispersion strengthened metal wear-resistant belt and engineering plastic ring body floating oil seal in this embodiment include a pair of sealing ring bodies 1 with symmetrical upper and lower structures. The sealing ring body 1 is injection molded from PTFE. A groove 3 for arranging the sealing ring 2 is arranged on the outer side of the sealing ring body 1, and the sealing ring 2 is arranged in the groove. The working surface 4 of the sealing ring body 1 is provided with a ring of wear-resistant belt assembly groove 5, and the width of the wear-resistant belt assembly groove 5 is l 2 Accounted for the total width of the working face l 1 25%, a ring of wear-resistant belt 6 is fixedly installed in the wear-resistant belt assembly groove 5. The wear-resistant belt assembly groove 5 is opened on the outer side of the working surface 4 . The wear-resistant band 6 is made of ceramic dispersion-strengthened metal material, with we...

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Abstract

The invention provides a floating oil seal provided with ceramic-dispersion-strengthened metal wear-resistant belts and engineering plastic ring bodies. The floating oil seal comprises a pair of seal ring bodies adopting upper and lower symmetrical structures, wherein a groove for arranging a seal ring is formed in a working surface of each seal ring body, the seal ring body is made of engineering plastic, a wear-resistant belt assembling groove is formed in the working surface of the seal ring body, the width 12 of the wear-resistant belt assembling groove accounts for 25%-75% of the total width 11 of the working surface, one wear-resistant belt is fixedly assembled in the wear-resistant belt assembling groove and is made of a metal material, ceramic powder materials are added to the metal material and distributed in the form of a dispersed phase, the addition amount of the ceramic powder materials does not exceed 5% of the total mass of the metal material, and a friction surface of the wear-resistant belt and the working surface of the seal ring body are located on the same plane, or the friction surface bulges outwards relative to the working surface. With the adoption of the floating oil seal, the wear resistance of the working surfaces can be effectively improved, the service life can be prolonged, machining is easy, and the production cost is low.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a ceramic dispersion-strengthened metal wear-resistant belt and an engineering plastic ring body floating oil seal used for sealing floating end faces in mechanical equipment. Background technique [0002] Floating oil seals are used in floating end face seals, which are mechanical seals with large consumption and wide application (nearly 10 million pieces per year in the country), such as figure 1 As shown, this seal is composed of two metal floating end face seal rings (referred to as floating oil seals) and two "O" type rubber seal rings installed on the central shaft. It has the characteristics of wear resistance, impact resistance, certain adaptability, long life, simple structure, low price, and convenient maintenance and replacement. It is widely used in the sealing structure. Due to the special environment in which the floating oil seal is used, it is a vulnerable part. The ex...

Claims

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Application Information

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IPC IPC(8): F16J15/16
Inventor 李纯
Owner 李纯
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