Slide ring seal

A technology of slip ring seals and seals, which is applied in the direction of engine seals, engine components, mechanical equipment, etc., to achieve the effect of increasing torque retention, increasing service life, and preventing wrinkles

Active Publication Date: 2013-10-23
FEDERAL MOGUL BURSCHEID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here too, the axial forces generated by the ingress of dirt cannot be avoided, leading to an opening of the slide ring seal with harmful ingress of dirt

Method used

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  • Slide ring seal
  • Slide ring seal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 Shown is a sectional view of a sliding ring seal 1 configured as a running gear seal in a pre-assembly position, which contains a sealing body 2 made of an elastomer material. The sealing body 2 has a surrounding base body with an approximately trapezoidal cross-section, on which, viewed in the circumferential direction, a bead 3 extending in the radial and axial direction is integrally formed. These flanges 3 form a later anti-twist protection for the slip ring seal 1 . Also integrally formed from the sealing body 2 is an axial arm 4 that extends in the axial direction and is designed as a collar. The flange 4 has, on its inner peripheral surface 5, formed parts 6 forming an anti-fouling lip, by means of which the flange is supported on the slip ring 1'. According to requirements, the profile 6 can be configured as a labyrinth seal or also as a corrugated profile with different geometrical contours. The axial arm 4 thus forms a secondary seal. On the outer...

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PUM

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Abstract

The invention relates to a slide ring seal, in particular a running gear seal (1), at least comprising an angular slide ring and / or counter ring, the radial limb of which forms a sliding region and the axial limb of which forms a receiving area for a trapezoidal sealing element, which is provided, radially outside the sliding region, with a shoulder engaging at least partially over the radial limb and forming a secondary seal, characterised in that at least in the region of the radial limb the shoulder is provided with a dirt lip-forming contour that in the installed state of the slide ring seal, in particular a running gear seal, is supported on the outer circumferential surface of the radial limb, viewed in the axial direction.

Description

technical field [0001] The invention relates to a sliding ring seal, in particular a running gear seal, according to the preamble of claim 1 . Background technique [0002] In the case of running gear seals with trapezoidal rubber rings, intruding dirt at high pressure (eg chain crawler cornering) exerts an axial force on the trapezoidal rubber rings. The force acting against the required closing force not only reduces but also completely counteracts the axial force generating the closing force, so that dirt can penetrate through the sealing gap of the slip ring seal, for example, into a downstream gearbox. An increase in force can lead to overheating due to the increased frictional power and thus to damage to the seal. [0003] This problem has been known for a long time, where gearbox wear or gearbox stalling due to seal failure cannot be tolerated. [0004] A first solution is described in DE19955860A1. The slip ring seal disclosed here, in particular the running gear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/34
CPCF16J15/34F16J15/344F16J15/00F16J15/38
Inventor A·登格勒
Owner FEDERAL MOGUL BURSCHEID
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