CN217355551U - High-pressure-resistant sealing element - Google Patents
High-pressure-resistant sealing element Download PDFInfo
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- CN217355551U CN217355551U CN202123351453.3U CN202123351453U CN217355551U CN 217355551 U CN217355551 U CN 217355551U CN 202123351453 U CN202123351453 U CN 202123351453U CN 217355551 U CN217355551 U CN 217355551U
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Abstract
The utility model discloses a high-pressure-resistant sealing element, which relates to the technical field of sealing elements and comprises a framework and a sealing ring, wherein the inner wall of the sealing ring is provided with a first back supporting ring, and a second back supporting ring is arranged between the first back supporting ring and the framework; the sealing washer includes external seal lip, main lip and external diameter, the external seal lip is located one side of external diameter, the main lip is located and is close to one side of first back support ring, the external seal lip is used for contacting sealedly with the mounting hole, the main lip is used for sealing oil and prevents leaking, the external diameter is used for closely laminating with the hole, cooperates the external seal lip is sealed the casing internal diameter together. The utility model discloses rational in infrastructure, sealed effectual can bear the high pressure, can reach 25Mpa, long service life, simple to operate.
Description
Technical Field
The utility model relates to a sealing member technical field, in particular to high withstand voltage sealing member.
Background
The hydraulic pump is a power element of a hydraulic system, and is an element which is driven by an engine or an electric motor, sucks oil from a hydraulic oil tank, forms pressure oil, discharges the pressure oil and sends the pressure oil to an execution element. The hydraulic pump needs to be sealed by a sealing element to prevent hydraulic oil from overflowing from the joint of the rotating shaft.
The less not enough of pressure speed (PV) value exists in traditional withstand voltage oil blanket design, leads to life to be short, and the fracture often appears, and the normal use of hydraulic pump is influenced to the inefficacy condition such as wearing and tearing are big, consequently, this application provides a high withstand voltage sealing member and satisfies the demand.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a high-pressure-resistant sealing element which is good in sealing effect, capable of bearing high pressure, long in service life and convenient to install, and can reach 25 Mpa.
In order to achieve the above purpose, the present application provides the following technical solutions: a high pressure-resistant sealing element comprises a framework and a sealing ring, wherein a first back supporting ring is arranged on the inner wall of the sealing ring, and a second back supporting ring is arranged between the first back supporting ring and the framework; the sealing washer includes external seal lip, main lip and external diameter, the external seal lip is located one side of external diameter, the main lip is located and is close to one side of first back support ring, the external seal lip is used for contacting sealedly with the mounting hole, the main lip is used for sealing oil and prevents leaking, the external diameter is used for closely laminating with the hole, cooperates the external seal lip is sealed the casing internal diameter together.
Preferably, the framework and the outer diameter are integrally formed into a whole through integral vulcanization.
Preferably, a chamfer is formed at the top of the sealing ring and is close to the framework.
Preferably, the framework is made of carbon steel.
Preferably, the specific material of the sealing ring is hydrogenated nitrile rubber.
To sum up, the utility model discloses a technological effect and advantage: under high pressure environment, the pressure extrusion sealing washer of inner chamber makes external diameter and hole closely laminate, and cooperation external seal lip is sealed with the mounting hole contact, prevents that the external diameter from revealing to reach sealed effect, the chamfer has been seted up at the top of sealing washer, the installation of being convenient for, the sealing member of this application, sealed effectual can bear the high pressure, can reach 25Mpa, under inside oil pressure environment, the better laminating of main lip and axle prevents that the internal diameter from revealing, long service life, simple to operate.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the first cross-sectional structure of the present invention;
fig. 2 is a schematic view of the second cross-sectional structure of the present invention.
In the figure: 1. a framework; 2. a seal ring; 3. a first back support ring; 4. a second back support ring; 5. an outer sealing lip; 6. a main lip; 7. an outer diameter; 8. and (7) chamfering.
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.
Example (b): referring to fig. 1-2, a high pressure-resistant sealing member includes a framework 1 and a sealing ring 2, a first back support ring 3 is disposed on an inner wall of the sealing ring 2, a second back support ring 4 is disposed between the first back support ring 3 and the framework 1, and the first back support ring 3 and the second back support ring 4 are used for supporting the sealing ring 2 in a high pressure environment;
the sealing ring 2 comprises an outer sealing lip 5, a main lip 6 and an outer diameter 7, the outer sealing lip 5 is located on one side of the outer diameter 7, the main lip 6 is located on one side close to the first back support ring 3, the outer sealing lip 5 is used for being in contact sealing with the mounting hole, the main lip 6 is used for sealing oil and preventing leakage, the outer diameter 7 is used for being tightly attached to the hole, the outer sealing lip 5 is matched with the inner diameter of the sealing shell together, under a high-pressure environment, the sealing ring 2 is pressed by pressure of the inner cavity, the outer diameter 7 is tightly attached to the hole, the outer sealing lip 5 is matched with the mounting hole for being in contact sealing, the outer diameter 7 is prevented from being leaked, and therefore the sealing effect is achieved.
In the embodiment, the framework 1 and the outer diameter 7 are integrally formed into a whole through integral vulcanization, and the processing technology is simple.
In this embodiment, the top of sealing washer 2 has been seted up chamfer 8, and chamfer 8 is close to skeleton 1, and the benefit of setting like this is, the installation of being convenient for.
In this embodiment, the frame 1 is made of carbon steel, the second back support ring 4 is made of nylon or PTFE, and the first back support ring 3 is made of carbon steel, so that the structural strength is high.
In this embodiment, the specific material of the sealing ring 2 is hydrogenated nitrile rubber, which has good oil resistance (good resistance to fuel oil, lubricating oil, and aromatic solvents), and has a highly saturated structure, so that it has good heat resistance and good chemical corrosion resistance.
This practical theory of operation:
under high pressure environment, the pressure extrusion sealing washer 2 of inner chamber, make external diameter 7 closely laminate with the hole, cooperation external seal lip 5 is sealed with the mounting hole contact, prevent that external diameter 7 from revealing, in order to reach sealed effect, chamfer 8 has been seted up at the top of sealing washer 2, the installation of being convenient for, the sealing member of this application, sealed effectual, can bear the high pressure, can reach 25Mpa, under the effect of inner chamber oil pressure, extrusion main lip 6, make it sealed with the better laminating of axle, prevent that the internal diameter from revealing under the pressure environment, long service life, simple to operate.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. A high pressure resistant seal characterized by: the sealing device comprises a framework (1) and a sealing ring (2), wherein a first back supporting ring (3) is arranged on the inner wall of the sealing ring (2), and a second back supporting ring (4) is arranged between the first back supporting ring (3) and the framework (1);
sealing washer (2) are including external seal lip (5), main lip (6) and external diameter (7), external seal lip (5) are located one side of external diameter (7), main lip (6) are located and are close to one side of first back support ring (3), external seal lip (5) are used for contacting with the mounting hole and seal, main lip (6) are used for sealing oil and prevent leaking, external diameter (7) are used for closely laminating with the hole, cooperate external seal lip (5) are sealed the casing internal diameter together.
2. A high pressure resistant seal as claimed in claim 1, wherein: the framework (1) and the outer diameter (7) are integrally formed through integral vulcanization.
3. A high pressure resistant seal as claimed in claim 1, wherein: chamfer (8) have been seted up at the top of sealing washer (2), chamfer (8) are close to skeleton (1).
4. A high pressure resistant seal as claimed in claim 1, wherein: the framework (1) is made of carbon steel, the second back support ring (4) is made of nylon or PTFE, and the first back support ring (3) is made of carbon steel.
5. A high pressure resistant seal as claimed in claim 1, wherein: the sealing ring (2) is made of hydrogenated nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123351453.3U CN217355551U (en) | 2021-12-28 | 2021-12-28 | High-pressure-resistant sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123351453.3U CN217355551U (en) | 2021-12-28 | 2021-12-28 | High-pressure-resistant sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217355551U true CN217355551U (en) | 2022-09-02 |
Family
ID=83039926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123351453.3U Active CN217355551U (en) | 2021-12-28 | 2021-12-28 | High-pressure-resistant sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217355551U (en) |
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2021
- 2021-12-28 CN CN202123351453.3U patent/CN217355551U/en active Active
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