CN214273820U

CN214273820U - Multi-combination gas sealing structure multilayer metal cylinder gasket

Info

Publication number: CN214273820U
Application number: CN202022738799.8U
Authority: CN
Inventors: 苗文旱; 黄庆牡; 吴春卫; 应军; 黄效桂; 张益民; 童小敏; 魏一凡; 陈熠鑫
Original assignee: Zhejiang Hangdian Technology Co ltd
Current assignee: Zhejiang Hangdian Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-09-24
Anticipated expiration: 2030-11-24

Abstract

The utility model relates to a multi-combination gas seal structure's multilayer metal cylinder gasket, including the upper plate, the pad body that medium plate and hypoplastron superpose in proper order and constitute, be equipped with the combustion chamber hole on the pad body, the bolt hole, coolant liquid hole a, the riveting hole, coolant liquid hole b, the inlet port, coolant liquid hole c, coolant liquid hole d, grouping mark hole and coolant liquid hole e, be equipped with the stiffening plate between medium plate and the hypoplastron, be equipped with the sealing strip that upper plate arc sealing rib and hypoplastron arc sealing rib formed on the peripheral function plywood upper plate of combustion chamber hole and hypoplastron respectively, there is sealed spacing piece between stiffening plate and the hypoplastron, sealed spacing piece and arc sealing rib both form the gas sealing strip side by side, realize that cylinder mouth leakproofness is highly reliable; the independently developed fluororubber coating is adopted for coating, so that the integral sealing reliability of the cylinder gasket is effectively ensured; the independently researched and developed structure with the sealing limiting sheet is adopted, and the precise installation of the ultrathin sealing limiting sheet is realized.

Description

Multi-combination gas sealing structure multilayer metal cylinder gasket

Technical Field

The utility model belongs to the technical field of the engine is sealed, specifically be a multi-combination gas seal structure's multilayer metal cylinder gasket.

Background

The engine head gasket is a seal between the top surface of the engine block and the bottom surface of the cylinder head. The function of the sealing device is to keep the cylinder sealed and airtight, and keep the cooling liquid and the engine oil flowing from the machine body to the cylinder cover from leaking. The head gasket bears the pressure caused when the head bolts are tightened, and is subjected to the high temperature and high pressure of the combustion gas in the cylinder and the corrosion of the engine oil and the coolant. The cylinder gasket is an important part of an engine and is also a multifunctional sealing element, and the quality of the cylinder gasket directly influences the service life of the engine. At present, newly developed engines in China almost completely adopt metal cylinder gaskets, asbestos sealing materials which have poor sealing performance and are environmentally-polluted and are forbidden internationally are not adopted to manufacture the cylinder gaskets, asbestos-free materials with lower rigidity are not adopted to manufacture the cylinder gaskets, and for some high-performance and high-power engines, if the design and manufacture of the engines do not meet the requirements, the engines still have the phenomenon of leakage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multiunit closes gas seal structure's multilayer metal cylinder gasket to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-layer metal cylinder gasket with a multi-combination gas sealing structure comprises a square gasket body formed by sequentially overlapping an upper plate, a middle plate and a lower plate, wherein four combustion chamber holes are uniformly distributed in the middle of the gasket body, ten bolt holes are formed in the periphery of the combustion chamber holes and are arranged in a matrix, four bolt holes are respectively formed right above and right below the combustion chamber holes, 18 bolt holes are formed in total, four cooling liquid holes a and four cooling liquid holes b are positioned below the combustion chamber holes and are uniformly distributed, four riveting holes are formed in positions close to the four corners of the gasket body, four oil inlet holes are close to the positions above the four cooling liquid holes b, eight cooling liquid holes c are distributed around the four combustion chamber holes, three cooling liquid holes d are arranged in positions which are deviated upwards between every two combustion chamber holes, a pair of grouping mark holes is formed between two bolt holes above the two combustion chamber holes on the left side, and a cooling liquid hole e is formed below the riveting hole on the upper right corner of the gasket body, all holes in the cushion body are through holes, a reinforcing plate is arranged between the middle plate and the lower plate, an upper plate circular arc sealing rib is arranged on the upper plate at the periphery of the combustion chamber hole, a lower plate circular arc sealing rib is arranged on the lower plate, a sealing limiting piece is arranged above the lower plate circular arc sealing rib and is tightly attached to the reinforcing plate, and a sealing strip formed by the upper plate circular arc sealing rib and the lower plate circular arc sealing rib and the sealing limiting piece are arranged side by side to form a gas sealing strip.

Preferably, the periphery of the bolt hole is provided with an upper plate inclined sealing rib and a lower plate inclined sealing rib.

Preferably, the periphery of the oil inlet hole is provided with an upper plate pressure oil hole inclined sealing rib and a lower plate pressure oil hole inclined sealing rib.

Preferably, the peripheries of the cooling liquid hole a and the cooling liquid hole b are provided with an upper plate cooling liquid sealing type inclined sealing rib and a lower plate cooling liquid sealing type inclined sealing rib.

Preferably, the upper plate, the middle plate and the lower plate are riveted together by riveting holes.

Preferably, the sealing limiting sheet is welded between the reinforcing plate and the lower plate circular arc-shaped sealing rib by adopting laser fine welding.

The utility model aims at overcoming the defects of the prior art, designing a multi-layer metal cylinder gasket with a multi-combination gas sealing structure, designing a double-combination gas sealing structure according to the characteristics of the working condition of an engine, wherein a gas sealing strip is formed by a sealing strip formed by an upper plate arc sealing rib and a lower plate arc sealing rib and a sealing limiting sheet in parallel, and realizing high reliability of the sealing performance of a cylinder opening; the independently developed fluororubber coating and the parameterized configuration of the coating are adopted, and the functional layers and the surface are coated with the fluororubber coating, so that the integral sealing reliability of the cylinder gasket is effectively ensured; the independently researched and developed structure with the sealing limiting sheet is adopted, and the precise installation of the ultrathin sealing limiting sheet is realized.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a cross-sectional view of C-C of FIG. 1;

FIG. 5 is a cross-sectional view taken along line D-D of FIG. 1;

FIG. 6 is a cross-sectional view of E-E of FIG. 1;

FIG. 7 is a cross-sectional view F-F of FIG. 1;

FIG. 8 is a cross-sectional view taken along line G-G of FIG. 1;

FIG. 9 is a cross-sectional view taken at H-H in FIG. 1;

fig. 10 is a cross-sectional view taken along line I-I of fig. 1.

In the figure: 1. the sealing structure comprises a cushion body, 2, combustion chamber holes, 3, bolt holes, 4, cooling liquid holes a, 5, riveting holes a, 6, cooling liquid holes b, 7, an oil inlet hole, 8, cooling liquid holes c, 9, cooling liquid holes d, 10, grouping marking holes, 11, an upper plate, 12, a middle plate, 13, a lower plate, 14, cooling liquid holes e, 15, a sealing limiting sheet, 16, a reinforcing plate, 17, an upper plate circular arc sealing rib, 18, a lower plate circular arc sealing rib, 19, an upper plate straight inclined sealing rib, 20, a lower plate inclined sealing rib, 21, an upper plate pressure oil hole inclined sealing rib, 22, a lower plate pressure oil hole inclined sealing rib, 23, an upper plate cooling liquid sealing inclined sealing rib and 24, and a lower plate cooling liquid sealing inclined sealing rib.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides a technical solution: a multi-layer metal cylinder gasket with a multi-combination gas sealing structure comprises a square gasket body 1 formed by sequentially overlapping an upper plate 11, a middle plate 12 and a lower plate 13, wherein four combustion chamber holes 2 are uniformly distributed at the middle position of the gasket body 1, ten bolt holes 3 are arranged around the combustion chamber holes 2 and are distributed according to a matrix, four bolt holes 3 are respectively arranged right above and right below the combustion chamber holes 2, the total number of the bolt holes 3 is 18, four cooling liquid holes a4 and four cooling liquid holes b6 are positioned below the combustion chamber holes 2 and are uniformly distributed, four riveting holes 5 are arranged at positions close to four corners of the gasket body 1, four oil inlet holes 7 are abutted against positions above the four cooling liquid holes b6, eight cooling liquid holes c8 are distributed around the four combustion chamber holes 2, three cooling liquid holes d9 are arranged at positions which are deviated between every two of the four combustion chamber holes 2, a pair of grouping mark holes 10 are arranged between the two bolt holes 3 above the two combustion chamber holes 2 at the left side, a cooling liquid hole e14 is arranged below a riveting hole 5 at the upper right corner of a cushion body 1, all holes on the cushion body 1 are through holes, a reinforcing plate 16 is arranged between a middle plate 12 and a lower plate 13, an upper plate circular arc sealing rib 17 is arranged on an upper plate 11 at the periphery of a combustion chamber hole 2, a lower plate circular arc sealing rib 18 is arranged on the lower plate 13, a sealing limiting piece 15 is arranged above the lower plate circular arc sealing rib 18, the sealing limiting piece 15 is tightly attached to the reinforcing plate 16, and a sealing strip formed by the upper plate circular arc sealing rib 17 and the lower plate circular arc sealing rib 18 and the sealing limiting piece 15 are arranged side by side to form a gas sealing strip.

The periphery of the bolt hole 3 is provided with an upper plate inclined sealing rib 19 and a lower plate inclined sealing rib 20.

The periphery of the oil inlet hole 7 is provided with an upper plate pressure oil hole inclined sealing rib 21 and a lower plate pressure oil hole inclined sealing rib 22.

The peripheries of the coolant hole a4 and the coolant hole b6 are provided with an upper plate coolant seal-type inclined sealing rib 23 and a lower plate coolant seal-type inclined sealing rib 24.

The upper plate 11, the middle plate 12, and the lower plate 13 are riveted together through the riveting holes 5.

The sealing limiting sheet 15 is welded between the reinforcing plate 16 and the lower plate circular arc sealing rib 18 by adopting laser fine welding.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multilayer metal cylinder gasket of multiunit combination gas seal structure, includes square pad body (1) that upper plate (11), medium plate (12) and hypoplastron (13) superpose in proper order and constitute, its characterized in that: four circular combustion chamber holes (2) are uniformly distributed in the middle of the cushion body (1), ten bolt holes (3) are formed in the periphery of each combustion chamber hole (2) and are arranged according to a matrix, four bolt holes (3) are respectively formed right above and right below each combustion chamber hole (2), the total number of the bolt holes (3) is 18, four cooling liquid holes a (4) and four cooling liquid holes b (6) are located below the combustion chamber holes (2) and are uniformly distributed, four riveting holes (5) are formed in positions close to four corners of the cushion body (1), four oil inlet holes (7) are closely attached to positions above the four cooling liquid holes b (6), eight cooling liquid holes c (8) are distributed around the four combustion chamber holes (2), three cooling liquid holes d (9) are formed in positions which are deviated between every two of the four combustion chamber holes (2), a pair of grouping mark holes (10) are formed between the two bolt holes (3) above the two combustion chamber holes (2) on the left side, a cooling liquid hole e (14) is formed below a riveting hole (5) in the upper right corner of a cushion body (1), all holes in the cushion body (1) are through holes, a reinforcing plate (16) is arranged between a middle plate (12) and a lower plate (13), an upper plate circular arc-shaped sealing rib (17) is arranged on an upper plate (11) on the periphery of a combustion chamber hole (2), a lower plate circular arc-shaped sealing rib (18) is arranged on the lower plate (13), a sealing limiting piece (15) is arranged above the lower plate circular arc-shaped sealing rib (18), the sealing limiting piece (15) is tightly attached to the reinforcing plate (16), and a sealing strip formed by the upper plate circular arc-shaped sealing rib (17) and the lower plate circular arc-shaped sealing rib (18) and the sealing limiting piece (15) are arranged side by side to form a gas sealing strip.

2. The multilayer metal cylinder gasket of a multi-combination gas seal structure of claim 1, wherein: and an upper plate inclined sealing rib (19) and a lower plate inclined sealing rib (20) are arranged on the periphery of the bolt hole (3).

3. The multilayer metal cylinder gasket of a multi-combination gas seal structure of claim 1, wherein: and an upper plate pressure oil hole inclined sealing rib (21) and a lower plate pressure oil hole inclined sealing rib (22) are arranged on the periphery of the oil inlet hole (7).

4. The multilayer metal cylinder gasket of a multi-combination gas seal structure of claim 1, wherein: and an upper plate cooling liquid sealed inclined sealing rib (23) and a lower plate cooling liquid sealed inclined sealing rib (24) are arranged at the peripheries of the cooling liquid hole a (4) and the cooling liquid hole b (6).

5. The multilayer metal cylinder gasket of a multi-combination gas seal structure of claim 1, wherein: the upper plate (11), the middle plate (12) and the lower plate (13) are riveted together through the riveting holes (5).

6. The multilayer metal cylinder gasket of a multi-combination gas seal structure of claim 1, wherein: the sealing limiting sheet (15) is welded between the reinforcing plate (16) and the lower plate circular arc sealing rib (18) through laser fine welding.