CN218207313U - Sealing structure suitable for oil pressure environment - Google Patents
Sealing structure suitable for oil pressure environment Download PDFInfo
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- CN218207313U CN218207313U CN202222585249.6U CN202222585249U CN218207313U CN 218207313 U CN218207313 U CN 218207313U CN 202222585249 U CN202222585249 U CN 202222585249U CN 218207313 U CN218207313 U CN 218207313U
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Abstract
The invention relates to the technical field of oil pressure environment sealing. The utility model provides a seal structure suitable for oil pressure environment, includes the hydro-cylinder, hydro-cylinder inner wall seted up annular seal groove, be equipped with the sealing washer in the seal groove, be equipped with the piston in the sealing washer, the open oil feed chamber in bottom is seted up at the middle part of sealing washer, the partly of oil feed chamber is located the seal groove, the other part of oil feed chamber is located the seal groove outside and communicates with each other with the hydro-cylinder is inside, the oil feed intracavity interval of sealing washer is equipped with the spacing plectrum that a plurality of can prevent the sealing washer deformation, spacing plectrum is extended by the outside seal groove in the bottom of oil feed chamber, the corner at the seal groove is supported to the free end of spacing plectrum. The invention provides a sealing structure which can effectively prevent the deformation of a sealing ring, has stable sealing effect and is convenient to install and suitable for an oil pressure environment; the technical problems that a traditional sealing ring in the prior art is inconvenient to install and the sealing effect disappears due to the fact that the sealing ring is easy to deform are solved.
Description
Technical Field
The invention relates to the technical field of oil pressure environment sealing, in particular to a sealing structure suitable for an oil pressure environment.
Background
In modern society, automobiles have become one of the first-choice transportation tools for the public. The automobile industry develops rapidly, and along with the development of safer, more reliable, more stable, full-automatic + intelligent and environment-friendly energy-saving automobile performance, the electronic hydraulic actuator is widely applied to automobile gearboxes and can well meet the market demand.
The electronic hydraulic actuator is a clutch operating mechanism in an automatic gearbox, and the principle of the electronic hydraulic actuator is that two actuating motors are controlled to drive a lead screw and a piston to move, power is transmitted to the clutch actuating mechanism through oil, and the two clutches are connected with and separated from a power input shaft under different matching working conditions. Whole pneumatic cylinder system, need to accomplish steps such as moisturizing, exhaust, pressurize, and the pressurize is whole journey assurance pressure in the piston motion process, therefore, it is extremely high to the pneumatic cylinder sealing system requirement, for guaranteeing the intensity of pneumatic cylinder under the high pressure condition, pneumatic cylinder and piston all adopt the PBT material, after the completion of moulding plastics, hardness is very high, it is sealed to joining in marriage through the two simply, can't reach the requirement, and can't control moisturizing and exhaust, consequently install the oil blanket in the middle of pneumatic cylinder and piston, be used for guaranteeing to seal, traditional oil blanket, moreover, the steam generator is simple in structure, the function is single, and the defect of structure is inefficacy easily, consequently, improved necessity has.
Disclosure of Invention
The invention provides a sealing structure which can effectively prevent the deformation of a sealing ring, has stable sealing effect and is convenient to install and suitable for an oil pressure environment; the technical problems that a traditional sealing ring in the prior art is inconvenient to install and the sealing effect disappears due to the fact that the sealing ring is easy to deform are solved.
The technical problem of the invention is solved by the following technical scheme: the utility model provides a seal structure suitable for oil pressure environment, which comprises an oil cylinder, hydro-cylinder inner wall seted up annular seal groove, be equipped with the sealing washer in the seal groove, be equipped with the piston in the sealing washer, one side of sealing washer and seal groove tank bottom contact is the outside, the sealing washer is inboard with one side of piston contact, the open oil feed chamber in bottom is seted up at the middle part of sealing washer, the partly in seal groove of oil feed chamber, the other part in oil feed chamber is located the seal groove outside and communicates with each other with the hydro-cylinder is inside, the oil feed intracavity interval of sealing washer is equipped with the spacing plectrum that a plurality of can prevent the sealing washer and warp, spacing plectrum extends to the seal groove by the bottom in oil feed chamber outward, the corner at the seal groove is supported to the free end of spacing plectrum. The sealing groove is matched with the sealing ring to realize the matched sealing between the oil cylinder and the piston, when the piston moves downwards, oil in the oil cylinder can enter an oil inlet cavity formed in the sealing groove, so that the sealing ring is opened, the opened sealing ring is more tightly attached to the piston, the sealing effect of the piston is increased, when the piston moves upwards, the limit shifting piece can block the inner side sealing ring from being sucked into the oil inlet cavity, the deformation of the sealing ring is prevented, the opening of the oil inlet cavity is ensured, the disappearance of the sealing effect caused by the deformation of the sealing ring is avoided, and the dangerous condition in the using process is caused.
Preferably, the length of the limiting shifting piece is greater than the height of the sealing ring. The limiting shifting piece needs to be exposed outside the sealing groove, so that the length of the limiting shifting piece needs to be larger than the height of the sealing ring, the limiting shifting piece cannot enter the sealing groove when the sealing ring is installed in the sealing groove, and the limiting effect of the limiting shifting piece on the inner side of the sealing ring is guaranteed.
Preferably, the number of the limiting shifting pieces is 8, and the limiting shifting pieces and the sealing ring are integrally formed. Spacing plectrum annular sets up in the oil feed intracavity, and spacing plectrum and sealing washer be integrated into one piece, can guarantee the use intensity of spacing plectrum like this, increases holistic life, and the quantity of spacing plectrum can be according to the increase reduction such as the size of sealing washer, the utility model discloses use 8 spacing plectrums to explain as the example, 8 even distributions of spacing plectrum guarantee the holistic stability of sealing washer in the oil feed intracavity.
Preferably, a supporting installation groove is formed in the corner of the bottom of the outer side of the sealing ring, and the contact position of the bottom surface of the sealing ring and the sealing groove is a supporting point. The support mounting groove is formed to facilitate the assembly of the sealing ring, so that the support surface and the sealing surface of the sealing ring are separated, and the tolerance influence is eliminated.
Preferably, the sealing ring above the supporting mounting groove is provided with an outer sealing mounting groove which is recessed towards the inner side of the sealing ring, two ends of the outer sealing mounting groove are outer sealing points, and the outer sealing points are in point contact with the sealing groove. The sealing ring outside after having seted up the external seal mounting groove realizes sealedly for point contact cooperation with the seal groove, both can be convenient for the installation of sealing ring like this, can increase sealing performance through reducing area of contact simultaneously, and 2 external seal points realize double seal.
Preferably, the inner side of the sealing ring is provided with an inner sealing installation groove which is sunken towards the outer side of the sealing ring, two ends of the inner sealing installation groove are inner sealing points, and the inner sealing points are in point contact with the piston. The inner side of the sealing ring provided with the inner sealing installation groove is in point contact with the piston, and 2 inner sealing points realize double sealing effect and improve the sealing property.
Therefore, the sealing structure applicable to the hydraulic environment of the present invention has the following advantages: the sealing ring is convenient to install, the fiber poking sheet in the sealing ring can effectively prevent the deformation of the sealing ring, the sealing effect is enhanced, and the opening of an oil inlet cavity in the sealing ring is ensured.
Drawings
Fig. 1 is a schematic perspective view of a seal structure suitable for an oil pressure environment according to the present invention.
Fig. 2 is a perspective view of the sealing ring of fig. 1.
Fig. 3 is a schematic perspective view of the sealing ring of fig. 1 in different orientations.
Fig. 4 is a front sectional structural view of fig. 1.
Fig. 5 is an enlarged view at a in fig. 4.
In the figure, an oil cylinder 1, a sealing groove 2, a sealing ring 3, a piston 4, a supporting installation groove 5, a supporting point 6, an external sealing installation groove 7, an external sealing point 8, an oil inlet cavity 9, a limiting shifting piece 10, an internal sealing installation groove 11 and an internal sealing point 12.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
as shown in fig. 1 and 2 and 3 and 4 and 5, a sealing structure suitable for an oil pressure environment, including an oil cylinder 1, a sealing groove 2 is provided on an inner wall of the oil cylinder 1, a sealing ring 3 is installed in the sealing groove 2, a piston 4 is installed in the sealing ring 3, one side of the sealing ring 3 contacting the sealing groove 2 is an outer side, one side of the sealing ring 3 contacting the piston 4 is an inner side, a supporting mounting groove 5 is provided at a bottom corner of the sealing ring outer side, a contact position between the bottom surface of the sealing ring 3 and a side wall of the sealing groove 2 is a supporting point 6, an outer sealing mounting groove 7 recessed towards the inner side of the sealing ring 3 is provided on the sealing ring 3 above the supporting mounting groove 5, two ends of the outer sealing mounting groove 7 are outer sealing points 8, the outer sealing points 8 are in point contact with the sealing groove 2, an oil inlet cavity 9 opened at the middle part of the sealing ring 3 is provided at the bottom, one part of the oil inlet cavity 9 is located outside the oil cylinder 1 and communicated with the inside, 8 limit poking pieces 10 are installed at intervals in the oil inlet cavity 9 of the sealing ring 3, the limiting poking piece 10 is extended from the inner side of the sealing groove 12 to the sealing groove 2, and the inner side of the sealing ring 2, and the inner side of the sealing groove 11 extends from the inner side of the sealing groove 3 to the inner side of the sealing groove 12 of the sealing groove 2, and the sealing ring 3.
During the use, install sealing washer 3 in seal groove 2 earlier, 2 external seal points 8 of sealing washer 3 and the tank bottom contact of seal groove 2 form sealedly, the strong point 6 of sealing washer 3 bottom surface and the lateral wall contact of seal groove 2, spacing plectrum 10 is because length is greater than the height of sealing washer 3, can be natural when installing sealing washer 3 support the corner in seal groove 2 bottom, prevent that the inboard of sealing washer 3 is to the interior sunken deformation of oil feed chamber 9, guarantee the opening of oil feed chamber 9, then install piston 4 in sealing washer 3, 2 internal seal points 12 of sealing washer 3 inboard form sealedly with the contact of piston 4 outer wall.
Claims (6)
1. The utility model provides a seal structure suitable for oil pressure environment, includes the hydro-cylinder, its characterized in that: the hydro-cylinder inner wall seted up annular seal groove, be equipped with the sealing washer in the seal groove, be equipped with the piston in the sealing washer, the sealing washer is the outside with one side of seal groove tank bottom contact, the sealing washer is inboard with one side of piston contact, the open oil feed chamber in bottom is seted up at the middle part of sealing washer, the partly in seal groove of oil feed chamber, the other part in oil feed chamber is located the seal groove outside and communicates with each other with the hydro-cylinder is inside, the oil feed intracavity interval of sealing washer is equipped with the spacing plectrum that a plurality of can prevent the sealing washer deformation, spacing plectrum extends by the outside seal groove in bottom in oil feed chamber, the corner at the seal groove is supported to the free end of spacing plectrum.
2. A seal structure adapted for use in an oil pressure environment according to claim 1, wherein: the length of the limiting shifting piece is greater than the height of the sealing ring.
3. A seal structure adapted for use in an oil pressure environment according to claim 2, wherein: the number of the limiting shifting pieces is 8, and the limiting shifting pieces and the sealing ring are integrally formed.
4. A seal structure adapted for use in an oil pressure environment according to claim 1, wherein: the bottom corner in the sealing washer outside seted up the support mounting groove, the bottom surface of sealing washer is the strong point with seal groove contact department.
5. A seal structure adapted for use in an oil pressure environment according to claim 4, wherein: the sealing ring above the supporting mounting groove is provided with an outer sealing mounting groove which is sunken towards the inner side of the sealing ring, two ends of the outer sealing mounting groove are outer sealing points, and the outer sealing points are in point contact with the sealing groove.
6. A seal structure adapted to an oil pressure environment according to claim 4, wherein: the inner side of the sealing ring is provided with an inner sealing installation groove which is sunken towards the outer side of the sealing ring, two ends of the inner sealing installation groove are inner sealing points, and the inner sealing points are in point contact with the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222585249.6U CN218207313U (en) | 2022-09-29 | 2022-09-29 | Sealing structure suitable for oil pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222585249.6U CN218207313U (en) | 2022-09-29 | 2022-09-29 | Sealing structure suitable for oil pressure environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218207313U true CN218207313U (en) | 2023-01-03 |
Family
ID=84637196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222585249.6U Active CN218207313U (en) | 2022-09-29 | 2022-09-29 | Sealing structure suitable for oil pressure environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218207313U (en) |
-
2022
- 2022-09-29 CN CN202222585249.6U patent/CN218207313U/en active Active
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