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Sliding component

A technology of sliding parts and parts, applied in the direction of engine components, sliding contact bearings, bearing components, etc., can solve problems such as inability to exert stable sealing performance

Pending Publication Date: 2021-12-03
EAGLE INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, when the deformation of the seal ring on the rotating side is small, the opposing surfaces of the seal rings face each other in parallel, and a predetermined sealing performance can be exhibited. When the deformation of the sealing ring is large, there is a problem that stable sealing performance cannot be exerted

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0034] For the sliding parts involved in embodiment 1, refer to Figure 1 to Figure 6 , for illustration. In addition, in this embodiment, an example in which the sliding member is a mechanical seal will be described. In addition, the inside diameter side of the sliding member constituting the mechanical seal is the leakage side and the atmospheric side (low pressure side) of the gas side, and the outside diameter side is the sealed liquid side (high pressure side).

[0035] Such as figure 1 The shown mechanical seal for general industrial machinery is a built-in type, and seals the sealed liquid F that is intended to leak from the outer diameter side toward the inner diameter side of the sliding surface, and is mainly composed of a rotating seal ring 20 and a stationary seal ring 10, The rotary seal ring 20 is a ring as an annular sliding member, and is provided on the rotating shaft 1 in a state capable of rotating together with the rotating shaft 1 via the sleeve 2, and ...

Embodiment 2

[0061] Next, for the sliding member related to the second embodiment, refer to Figure 7 to explain. In addition, descriptions of configurations that overlap with those of the above-mentioned embodiments are omitted.

[0062] Such as Figure 7 As shown in (a), the facing surface 51 of the rotary seal ring 50 is formed in a convex curved shape in the facing direction, forming a curved surface. The opposing surface 41 of the stationary seal ring 40 is formed on a plane perpendicular to the axial direction. Thus, if Figure 7 As shown in (b), in the case where the rotary seal ring 50 is deformed when the rotating shaft 1 rotates, the facing surface 51 as its curved shape is inclined relative to the facing surface 41 of the stationary seal ring 40 as a plane. The region X3 centered on the closest portion P3 approaches, and a part of the facing surface 51 approaches in parallel with the facing surface 41 , thereby ensuring an effective facing region in the radial direction.

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Abstract

Provided is a sliding component capable of exhibiting stable sliding performance under various conditions. At least one of opposing surfaces 11, 21 of mutually opposing rings 10, 20, disposed in positions that rotate relative to one another when a rotating machine is driven, has formed therein a convex curved surface portion forming at least a portion of the opposing surface.

Description

technical field [0001] The present invention relates to a relatively rotating sliding part, such as a sliding part used in a shaft sealing device for sealing the rotating shaft of a rotating machine in the field of automobiles, general industrial machinery or other sealing fields, or a rotating shaft in the field of automobiles, general industrial machinery or other bearings Sliding parts used in mechanical bearings. Background technique [0002] Conventionally, in a shaft sealing device that seals the rotating shaft of a rotating machine such as a pump or a turbine and prevents leakage of the sealed fluid, there is, for example, a mechanical seal in which two planar end faces that rotate relative to each other slide against each other. composed of parts. The mechanical seal includes a stationary seal ring as a sliding member fixed to the housing and a rotary seal ring as a sliding member fixed to the rotating shaft and rotating together with the rotating shaft. A force is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/34
CPCF16J15/3412F16J15/3416F16C33/74F16J15/3464F16C17/024F16J15/164
Inventor 井村忠继
Owner EAGLE INDS
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