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A low-speed diesel engine stuffing box internal sealing ring structure

A sealing ring and diesel engine technology, which is applied to the sealing device of the engine, mechanical equipment, engine components, etc., can solve the problems of increasing manufacturing difficulty, and achieve the effect of reducing the difficulty of processing technology, reducing the height, and reliable sealing

Active Publication Date: 2020-05-15
HUDONG HEAVY MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this structure reduces the height of the sealing ring structure, it needs to strictly control the tolerance size of the large mating surface between the inner and outer ring sealing rings, which puts forward higher requirements for the processing technology and increases the difficulty of manufacturing

Method used

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  • A low-speed diesel engine stuffing box internal sealing ring structure
  • A low-speed diesel engine stuffing box internal sealing ring structure
  • A low-speed diesel engine stuffing box internal sealing ring structure

Examples

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Embodiment Construction

[0030] The structure of the sealing ring inside the stuffing box of the low-speed diesel engine according to the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but this should not limit the protection scope of the present invention.

[0031] Please refer to figure 1 and figure 2 , which shows the internal seal ring structure of the low-speed diesel engine stuffing box, including four seal rings 1, four compensation blocks 2, spring 3 and housing 4.

[0032] Please refer to Figure 4 , Figure 5 and Image 6 , the four sealing rings 1 are the same and have the same size, and each sealing ring 1 is arc-shaped.

[0033] The sealing ring 1 is provided with an upper plane 105, a lower plane 106, an inner ring surface 101 and two side end surfaces 107, each side end surface 107 is provided with a protrusion, and the lower side of the protrusion is provided with a horizontal lower positioning T...

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Abstract

The invention discloses an inner sealing ring structure for a stuffing box of a low-speed diesel engine. The inner sealing ring structure comprises four sealing rings, four compensation blocks, a spring and a shell, wherein the four sealing rings, the four compensation blocks and the spring are arranged in the shell; the four compensation blocks are inserted among the four sealing rings respectively and connected into an integrated ring in a manner of being spaced one by one; and the spring is arranged at the peripheries of the four sealing rings and the four compensation blocks in an encircling manner and tensioned, thus the inner rings of the four sealing rings and the four compensation blocks are in close contact with a piston rod of the low-speed diesel engine to play a sealing role. According to the inner sealing ring structure disclosed by the invention, the height of the whole sealing ring structure is reduced, and the difficulty of a machining process is lowered; and the inner sealing ring structure has the advantages of being simple in structure, reliable in sealing and low in manufacturing cost.

Description

technical field [0001] The invention relates to a sealing structure of a diesel engine, in particular to an inner sealing ring structure of a stuffing box of a low-speed diesel engine, and belongs to the technical field of diesel engines. Background technique [0002] The internal sealing ring of the stuffing box of a low-speed marine diesel engine generally has two structures, one is the structure of the upper and lower sealing rings, and the other is the structure of the inner and outer ring sealing rings. [0003] For the structure of the upper and lower seal rings, the sealing effect is ensured by staggering the gap between the upper and lower seal rings. The structure is composed of upper and lower layers, which increases the height of the sealing ring structure, thereby increasing the length of the piston rod, so as to affect the overall height of the diesel engine. [0004] For the seal ring structure of the inner and outer rings, the sealing effect is guaranteed by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F11/00
CPCF02F11/00
Inventor 宋雅丽屠丹红刘旭
Owner HUDONG HEAVY MACHINERY
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