CN215487623U - High-pressure sealing device of supercharger - Google Patents
High-pressure sealing device of supercharger Download PDFInfo
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- CN215487623U CN215487623U CN202120961632.XU CN202120961632U CN215487623U CN 215487623 U CN215487623 U CN 215487623U CN 202120961632 U CN202120961632 U CN 202120961632U CN 215487623 U CN215487623 U CN 215487623U
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- cylinder barrel
- sealing element
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- sealing
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Abstract
The utility model relates to a high-pressure sealing device of a supercharger, belonging to the technical field of mechanical tools; comprises a blanking cover (4), a sealing element (2) and a cylinder barrel (1); the plug cover is of a step shaft structure, one end of the plug cover is of a conical round platform structure, the other end of the plug cover is of a cylindrical structure, and a through hole is formed in the step formed by the cylindrical plug cover and the round platform and used for mounting a screw; the sealing element is of a hollow cylindrical structure, a taper hole with the same taper as the circular truncated cone of the plug cover is formed at the inner diameter, and an annular double-hump structure is formed at the outer diameter; the cylinder barrel is of a hollow cylindrical structure, the inner diameter of the two ends of the cylinder barrel is slightly larger than that of the middle part of the cylinder barrel to form a step structure, and screw holes matched with the number and the size of the through holes of the blocking cover are formed in the two ends of the cylinder barrel; the sealing element is arranged in the cylinder barrel, and the blanking cover is connected with the cylinder barrel through a screw after being inserted into the sealing element. A double-line sealing structure is formed between the double-hump structure of the sealing element and the cylinder barrel, and three seals are formed by the sealing cavity between the double humps, so that the sealing reliability is improved, and the service life of equipment is prolonged.
Description
Technical Field
The utility model relates to a sealing device, in particular to a high-pressure sealing device of a supercharger, and belongs to the technical field of mechanical tools.
Background
The conventional booster high-pressure seal is a spherical surface and conical surface matched seal, and the spherical surface is extruded by pressure applied between the conical surface and the spherical surface to realize the seal by micro-deformation. The technical scheme realizes the sealing function to a certain extent, but for a supercharger (with the liquid pressure of more than 100 MPa) of ultrahigh pressure equipment, the pressure variation range is 0 MPa-600 MPa, the pressure variation range is large, metal fatigue is easily caused when the supercharger is used for a long time, so that the metal elasticity disappears, and the sealing structure is single sealing, so that the metal fatigue directly generates leakage to influence the reliable service life of the supercharger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a novel high-pressure sealing device for a supercharger, which aims to solve the problems partially or completely.
The purpose of the utility model is realized by the following technical scheme.
A supercharger high pressure seal arrangement comprising: blanking cover, sealing element and cylinder barrel;
the plug cover is of a step shaft structure, one end of the plug cover is of a conical round platform structure, the other end of the plug cover is of a cylindrical structure, and a through hole is formed in a step formed by the cylindrical structure and the round platform structure and used for mounting a screw;
preferably, the closure cap is made of a high strength hard alloy steel material.
The sealing element is of a hollow cylindrical structure, a taper hole with the same taper as the circular truncated cone of the plugging cover is formed at the inner diameter, and an annular double-hump structure is formed at the outer diameter;
preferably, the seal is made of a high strength elastomeric material.
Preferably, the material of the sealing member is copper.
Preferably, the maximum outer diameter of the seal (at the double hump) coincides with the inner diameter at both ends of the cylinder tube.
The cylinder barrel is of a hollow cylindrical structure, the inner diameter of the two ends of the cylinder barrel is slightly larger than that of the middle part of the cylinder barrel to form a step structure, and screw holes matched with the number and size of the through holes of the blocking cover are formed in the two ends of the cylinder barrel and used for connecting the blocking cover through screws;
the sealing piece is arranged at the end part of the cylinder barrel, the double-hump structure is positioned on the table, the plug cover is inserted into a taper hole of the sealing piece, and the sealing piece is connected with the cylinder barrel through the screw.
Preferably, the outer diameter of the cylinder barrel is consistent with the maximum outer diameter of the double humps of the plugging cover.
Preferably, the inner diameter of the middle part of the cylinder barrel is in clearance fit with the outer diameter of the sealing piece at the non-double hump position.
Advantageous effects
Compared with the prior art, the sealing structure utilizes the elasticity of the sealing ring, the axial movement of the sealing ring is limited by the stepped inner diameter of the cylinder when the blocking cover moves towards the cylinder, the radial deformation of the sealing element is realized by the cone angle of the blocking cover and the sealing element, the cone angle enables the sealing element to have the trend of expanding towards the outer diameter when the blocking cover moves towards the cylinder, a certain pressure is formed between the double-hump structure of the sealing element and the cylinder, a double-line sealing structure is formed, in addition, a high-pressure cavity is formed at the cavity part between the double humps to form a sealing structure, the sealing reliability is improved on the whole, and the service life of the sealing is prolonged. In addition, the trend that the cone angle of the blocking cover can be continuously expanded inwards is utilized, so that a self-compensating structure is formed between the sealing element and the cylinder barrel, and the service life of sealing is further prolonged.
Drawings
FIG. 1 is an assembly view of a high pressure seal of a supercharger;
FIG. 2 is a right side view of the cylinder;
FIG. 3 is an axial cross-sectional view of the cylinder;
FIG. 4 is an axial cross-sectional view of the seal;
FIG. 5 is a front view of the seal;
FIG. 6 is an axial cross-sectional view of the closure;
FIG. 7 is a front view of the closure;
reference numerals: 1-cylinder barrel, 2-sealing element, 3-screw and 4-blanking cover.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art in light of these embodiments are intended to be within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
For the purpose of illustrating the objects, technical solutions and advantages of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1, a high-pressure sealing device for a supercharger includes: the blanking cover 4, the sealing element 2 and the cylinder barrel 1;
the sealing element 2 is arranged in the inner diameters of the two ends of the cylinder barrel 1 and arranged on the outer surface of the circular truncated cone of the blocking cover 4, the diameter of the double hump of the sealing element 2 is consistent with the inner diameters of the two ends of the cylinder barrel 1, the non-double hump outer diameter of the sealing element 2 is smaller than the inner diameter of the middle part of the cylinder barrel 1, and the inner cone taper of the sealing element 2 is consistent with the circular truncated cone taper of the blocking cover 4 so as to guarantee the installation precision.
As shown in fig. 2 and 3, the cylinder barrel 1 is a hollow cylindrical structure, the inner diameters of the two ends are slightly larger than the inner diameter of the middle part to form a step-type inner cavity structure, and screw holes matched with the number and the size of the through holes of the blocking cover 4 are arranged at the two ends for fastening the blocking cover 4 on the cylinder barrel 1 through screws.
As shown in fig. 4 and 5, the sealing element 2 is a hollow cylindrical structure, a taper hole with the same taper as the truncated cone of the plug cover 4 is formed at the inner diameter, and an annular double-hump structure is formed at the outer diameter. Of course, those skilled in the art will appreciate that the axial cross-sectional profile of the double hump structure is not limited to that shown in the figures, as long as the double hump has a double-groove shape.
Preferably, the seal is made of a high strength elastic material in order to ensure a pressure between the seal 2 and the cylinder 1.
Preferably, the sealing element is made of copper to ensure the elasticity of the sealing element 2.
As shown in fig. 6 and 7, the blocking cover 4 is in a step shaft structure type, one end of the blocking cover is in a circular truncated cone structure, the other end of the blocking cover is in a cylindrical structure, and a through hole is formed in a step formed by the cylindrical structure and the circular truncated cone structure and used for installing a screw.
Preferably, the closure 4 is made of a high strength hard alloy steel material in order to prevent installation errors caused by compression deformation.
Preferably, in order to enhance the sealing performance, the outer diameter of the double hump crest of the sealing element 2 and the outer diameter part of the left end contacted with the cylinder barrel 1 are arranged to be in clearance fit with the inner diameter of the corresponding part of the cylinder barrel 1.
The assembling process comprises the following steps: the seal 2 is first installed, and the seal 2 is placed at the inner diameter of both ends of the cylinder tube 1. The closure cap 4 is then inserted into the conical bore of the seal 2 and the closure cap 4 is connected to the cylinder barrel 1 by means of the screw 3.
The mechanism of the present invention is explained below:
when the screw 3 is screwed down, utilize the axial displacement of the step internal diameter restriction sealing ring 2 of cylinder 1, the round platform of blanking cover 4 continues to move to cylinder 1 inside this moment, because the restriction of taper hole, make sealing ring 2 outwards expand the deformation, make to form certain pressure between the two hump structures of sealing member 2 and the cylinder 1, double-line seal structure has been formed, cavity part between the two humps is because both ends are sealed in addition, form seal chamber, after first hump structure destroys, utilize seal chamber between the two humps to seal, utilize second hump structure to seal after seal chamber destroys, form three seal structure, structurally increased sealed reliability, the life of equipment has been prolonged.
In order to illustrate the contents and embodiments of the present invention, specific examples are given herein. The details introduced in the examples are not intended to limit the scope of the claims but to assist in understanding the present invention. Those skilled in the art will understand that: although the description is given in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art will recognize that the embodiments described herein may be combined as a whole to form other embodiments as would be understood by those skilled in the art. And that various modifications, changes, or alterations to the steps of the preferred embodiments are possible without departing from the spirit and scope of the utility model and appended claims. Therefore, the present invention should not be limited to the disclosure of the preferred embodiments and the accompanying drawings.
Claims (7)
1. A high pressure seal arrangement for a supercharger, comprising: comprises a blanking cover (4), a sealing element (2) and a cylinder barrel (1);
the plug cover (4) is of a step shaft structure, one end of the plug cover is of a conical round platform structure, the other end of the plug cover is of a cylindrical structure, and a through hole is formed in a step formed by the cylindrical structure and the round platform structure and used for mounting a screw (3);
the sealing element (2) is of a hollow cylindrical structure, a taper hole with the same taper as the circular table of the plug cover (4) is formed in the inner diameter, and an annular double-hump structure is formed in the outer diameter;
the cylinder barrel (1) is of a hollow cylindrical structure, the inner diameters of the two ends of the cylinder barrel are slightly larger than the inner diameter of the middle part of the cylinder barrel to form a step structure, and screw holes matched with the number and the size of the through holes of the blocking cover (4) are formed in the two ends of the cylinder barrel and used for being connected with the blocking cover (4) through the screws (3);
the sealing piece (2) is arranged at the end part of the cylinder barrel (1), the double-hump structure is positioned on the table, the plugging cover (4) is inserted into a taper hole of the sealing piece (2), and the sealing piece (2) is connected with the cylinder barrel (1) through the screw (3).
2. The apparatus of claim 1, wherein: the plug cover (4) is made of high-strength hard alloy steel materials.
3. The apparatus of claim 1, wherein: the sealing element (2) is made of a high-strength elastic material.
4. The apparatus of claim 3, wherein: the sealing element (2) is made of copper.
5. The apparatus of claim 4, wherein: the maximum outer diameter of the sealing element (2) is consistent with the inner diameters of the two ends of the cylinder barrel (1).
6. The apparatus of claim 5, wherein: the outer diameter of the cylinder barrel (1) is consistent with the maximum outer diameter of the double hump of the plug cover (4).
7. The apparatus of any one of claims 1-6, wherein: the inner diameter of the middle part of the cylinder barrel (1) is in clearance fit with the outer diameter of the non-double hump part of the sealing element (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120961632.XU CN215487623U (en) | 2021-05-07 | 2021-05-07 | High-pressure sealing device of supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120961632.XU CN215487623U (en) | 2021-05-07 | 2021-05-07 | High-pressure sealing device of supercharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215487623U true CN215487623U (en) | 2022-01-11 |
Family
ID=79777171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120961632.XU Active CN215487623U (en) | 2021-05-07 | 2021-05-07 | High-pressure sealing device of supercharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215487623U (en) |
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2021
- 2021-05-07 CN CN202120961632.XU patent/CN215487623U/en active Active
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