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Seal ring

A sealing ring and sealing lip technology, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve problems such as sealing lip leakage, and achieve high robustness/robustness

Inactive Publication Date: 2015-07-01
罗琦俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, leakage may occur in the area of ​​the sealing lip

Method used

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  • Seal ring
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0129] Such as figure 1 A possible implementation of the size change shown in

[0130] Parameter Favorable value range Preferred value range

[0131] PD 0.8 to 1.6mm 1.1 to 1.3mm

[0132] s 0.6 to 1.2mm 0.8 to 1.0mm

[0133] sh 0.4 to 1.1mm 0.6 to 0.9mm

[0134] e 0.4 to 1.0mm 0.6 to 0.8mm

[0135] α 30 to 45 degrees 35 to 40 degrees

[0136] β 37 to 50 degrees 42 to 45 degrees

[0137] in figure 1 In the illustrated embodiment, all combinations of the above-mentioned values ​​of the parameters are allowed and applicable.

[0138] in figure 2 Shows the basis for the installation position of shaft 7 figure 1 The sealing ring 1. Here, at the installation location

[0139] The first angle β'and the second angle α'of are different from the first angle β and the second angle α in the unassembled state. this

[0140] In addition, a contact surface 23 is formed when the shaft 7 is installed.

[0141] In the installation position, the inner diameter 24 of the contact surface 23 is equivalent t...

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PUM

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Abstract

The invention relates to a seal ring, in particular to a radial shaft seal ring. The seal ring is used for separating an inner cavity (6) from an outer cavity (7) in a sealing mode, wherein the inner cavity (6) at least partially surrounds a shaft (7) correspondingly. The seal ring comprises a sealing lip (2) which is limited by a first truncated cone shape circumferential face (3) and a second truncated cone shape circumferential face (4). In the axial direction (11), the first truncated cone shape circumferential face (3) is located towards the outer cavity (5), and the second truncated cone shape circumferential face (4) is located towards the inner cavity (6). The first truncated cone shape circumferential face (3) and the second truncated cone shape circumferential face (4) are connected at an installation position through an annular contact face (23), attached to the shaft (7), of the sealing lip (2). A first angle beta which is 23-40 degrees is formed between the first truncated cone shape circumferential face (3) and the shaft (7) at the installation position. The inner diameter (24) of the annular contact face (23) attached to the shaft (7) is 1-15 mm at the installation position. The inner diameter depends on the diameter of the corresponding shaft (7) to be sealed.

Description

Technical field [0001] The present invention relates to the sealing of the opening of the housing passed through by the shaft by means of a sealing ring, wherein the sealing ring will correspond to [0002] A small part of the inner cavity surrounding the shaft is separated from an outer cavity. Here, the inner cavity can be a housing cavity, and the housing cavity is connected by a sealing ring. [0003] If necessary, the outer cavity surrounding the housing is separated in a pressure-tight manner, so that liquid, gas and / or particulate matter cannot [0004] It flows out from the inner cavity of the housing, and the material cannot enter the inner cavity of the housing from the outer cavity. Therefore, the present invention also relates to a [0005] The housing of the sealing ring. Background technique [0006] Known from EP 1156242B1 is a sealing ring designed as a radial shaft sealing ring, which consists of an annular, metal [0007] The support body and a sealing lip connected ...

Claims

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Application Information

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IPC IPC(8): F16J15/32F16J15/3232F16J15/3248
CPCF16J15/3204F16J15/3284
Inventor 罗琦俊
Owner 罗琦俊