CN210714853U - Sealing structure applied to pressure end and vortex end of turbocharger - Google Patents
Sealing structure applied to pressure end and vortex end of turbocharger Download PDFInfo
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- CN210714853U CN210714853U CN201921598251.9U CN201921598251U CN210714853U CN 210714853 U CN210714853 U CN 210714853U CN 201921598251 U CN201921598251 U CN 201921598251U CN 210714853 U CN210714853 U CN 210714853U
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- pressure
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Abstract
The utility model provides a sealing structure applied to a pressure end and a vortex end of a turbocharger, which comprises a pressure expanding plate, an intermediate body, a shaft seal and a sealing ring; one end of the turbine shaft is fixedly connected with the turbine, and the other end of the turbine shaft penetrates through a shaft hole of the pressure expanding plate and is connected with the impeller; a thrust bearing is arranged between the intermediate body and the diffusion plate; one end of the shaft seal is provided with a flange; one end of the flange props against the pressure expanding plate, and the other end of the flange props against the thrust bearing; two sealing ring grooves are formed in the shaft seal; a sealing ring is arranged in the sealing ring groove; the sealing ring contacts with the diffusion plate to make the edge of the contracting side of the sealing ring be a full round angle. By changing the structure and the number of the sealing rings, when the sealing rings are installed, due to the full-fillet stress characteristic, component force capable of enabling the sealing rings to contract radially can be generated, so that the sealing rings are easy to contract in the installation process, the possibility of damage and deformation of the sealing rings is reduced, the sealing effect of the turbocharger is improved, the oil leakage probability is reduced, and the sealing ring is simple in structure, easy to realize, good in economical efficiency and high in safety coefficient.
Description
Technical Field
The utility model relates to a turbo charger field especially relates to a be applied to turbo charger and press seal structure of end and whirlpool end.
Background
The turbocharger is actually an air compressor that increases the intake air amount by compressing air. The engine uses the inertia impulse force of the exhaust gas from the engine to push the turbine in the turbine chamber, the turbine drives the coaxial impeller, the impeller presses the air sent by the air filter pipeline, and the air is pressurized and enters the cylinder. When the rotating speed of the engine is increased, the exhaust gas exhaust speed and the rotating speed of the turbine are also increased synchronously, the impeller compresses more air to enter the air cylinder, the pressure and the density of the air are increased, more fuel can be combusted, the fuel quantity is correspondingly increased, the rotating speed of the engine is adjusted, and the output power of the engine can be increased.
The oil sealing parts on the turbocharger in the prior art generally adopt the sealing rings, but the cross sections of the sealing rings are all rectangular, and in the actual use process, the resistance borne by the sealing rings is axial force, so that the sealing rings are difficult to radially contract, the sealing rings are very difficult to assemble, and the sealing rings are easy to damage and deform, so that the resource waste and the product quality reduction are caused.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a be applied to turbo charger and press seal structure of end and whirlpool end to the cross-section of the sealing ring that exists among the solution prior art is the rectangle, and the resistance that the sealing ring receives makes the sealing ring hardly produce radial contraction for axial force, assembles the difficulty, and damages easily and the problem of deformation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a sealing structure applied to a pressure end and a vortex end of a turbocharger, which comprises a pressure expanding plate, an intermediate body, a shaft seal and a sealing ring; the pressure expansion plate is detachably arranged at the compressor end of the turbocharger, and is matched with the pressure shell of the compressor; the center of the pressure expansion plate is provided with a shaft hole, one end of a turbine shaft of the turbocharger is fixedly connected with the turbine, and the other end of the turbine shaft of the turbocharger penetrates through the shaft hole to be detachably connected with an impeller of the turbocharger; the intermediate body is sleeved on the turbine shaft; a thrust bearing is detachably arranged between the intermediate body and the pressure expansion plate; the shaft seal is of a cylindrical structure with openings at two ends; a flange is fixedly arranged at one end of the shaft seal; the shaft seal is sleeved on the turbine shaft and penetrates through the shaft hole; one end of the flange props against the pressure expanding plate, and the other end of the flange props against the thrust bearing; two sealing ring grooves are formed in the shaft seal; the sealing rings are detachably arranged in the two sealing ring grooves respectively; the peripheral surface of the sealing ring is attached to the hole wall of the shaft hole; the sealing ring is contacted with the diffusion plate to ensure that the edge angle of the contracted side of the sealing ring is a full fillet.
The utility model provides a be applied to turbo charger and press seal structure of end and whirlpool end, preferably, fixed first ladder and the second ladder of being equipped with on the outer periphery of bearing seal; the first step and the second step are annular; the first step and the second step are sleeved on the shaft seal; one end of the first step is fixedly connected with the flange, and the other end of the first step is fixedly connected with one end of the second step; the annular surface at the other end of the second step is flush with the annular surface of the shaft seal; the excircle diameter of the first step is larger than that of the second step; the shaft hole is of a step-shaped shaft hole structure matched with the outer circumferential surfaces of the first step and the second step; the first step and the second step are respectively provided with the sealing ring grooves; the sealing ring is detachably arranged in the sealing ring groove.
The utility model provides a be applied to turbo charger pressure end and vortex end's seal structure, preferably, the sealing ring includes first sealing ring and second sealing ring; the first sealing ring is of a convex structure; the second sealing ring is of a concave structure; the inner diameter of the first sealing ring is the same as that of the second sealing ring; the first sealing ring is connected with the second sealing ring in a clamping manner; the full round angle is fixedly arranged on the second sealing ring.
The utility model provides a seal structure applied to a pressure end and a vortex end of a turbocharger, preferably, a first opening is arranged on the first seal ring; a second gap is formed in the second sealing ring; the first gap and the second gap are not in the same plane.
The utility model provides a be applied to turbo charger and press seal structure of end and whirlpool end, preferably, first sealing ring with the fixed profile of tooth connecting portion that are used for improving sealing performance that are equipped with in unsmooth joint department of second sealing ring.
The utility model provides a be applied to turbo charger and press seal structure of end and whirlpool end, preferably, first opening with the second opening all is the diagonal.
The utility model provides a be applied to turbo charger and press seal structure of end and whirlpool end, preferably, first opening with the second opening all is the stairstepping.
The utility model provides a be applied to turbo charger and press seal structure of end and whirlpool end, preferably, first opening with the second opening all is the rectangle profile of tooth.
The utility model provides a be applied to turbo charger and press seal structure of end and whirlpool end, preferably, first opening with the second opening is equipped with the hasp interface of reverse symmetry and looks adaptation respectively.
The utility model provides a be applied to turbo charger and press seal structure of end and whirlpool end, preferably, the sealing ring is M2 instrument steel sealing ring.
The technical scheme has the following advantages or beneficial effects:
the utility model provides a sealing structure applied to a pressure end and a vortex end of a turbocharger, which comprises a pressure expanding plate, an intermediate body, a shaft seal and a sealing ring; the pressure expansion plate is detachably arranged at the compressor end of the turbocharger and is matched with a pressure shell of the compressor; the center of the pressure expansion plate is provided with a shaft hole, one end of a turbine shaft of the turbocharger is fixedly connected with the turbine, and the other end of the turbine shaft of the turbocharger penetrates through the shaft hole to be detachably connected with an impeller of the turbocharger; the intermediate body is sleeved on the turbine shaft; a thrust bearing is detachably arranged between the intermediate body and the diffusion plate; the shaft seal is of a cylindrical structure with openings at two ends; one end of the shaft seal is fixedly provided with a flange; the shaft seal is sleeved on the turbine shaft and penetrates through the shaft hole; one end of the flange props against the pressure expanding plate, and the other end of the flange props against the thrust bearing; two sealing ring grooves are formed in the shaft seal; sealing rings are detachably arranged in the two sealing ring grooves respectively; the peripheral surface of the sealing ring is attached to the hole wall of the shaft hole; the sealing ring contacts with the diffusion plate to make the edge of the contracting side of the sealing ring be a full round angle. By changing the structure and the quantity of the sealing rings, when the sealing rings are installed, because of the full-fillet stress characteristic, component force which enables the sealing rings to contract radially can be generated, so that the sealing rings contract more easily in the installation process, and the possibility of damage and deformation of the sealing rings is reduced, thereby further improving the sealing effect of the turbocharger, reducing the oil leakage probability, and the sealing ring has the advantages of simple structure, easiness in realization, good economy, high safety coefficient, improving the product quality to a certain extent, and reducing the production cost of enterprises.
Drawings
The invention and its features, aspects and advantages will become more apparent from a reading of the following detailed description of non-limiting embodiments with reference to the attached drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a schematic view of the installation of a sealing structure applied to a pressure end and a vortex end of a turbocharger in the turbocharger provided by embodiment 1 of the invention;
FIG. 2 is an enlarged partial schematic view of FIG. 1 at A;
FIG. 3 is a schematic cross-sectional view of the first step, the second step and the seal ring on the shaft seal;
FIG. 4 is a cross-sectional view of the seal ring with the gap in the shape of a diagonal line;
FIG. 5 is an enlarged partial schematic view of FIG. 4 at B;
FIG. 6 is a cross-sectional view of a seal ring having a stepped gap;
FIG. 7 is a cross-sectional view of the sealing ring with rectangular teeth-shaped gap;
FIG. 8 is a cross-sectional view of a sealing ring with a snap fit on the gap.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which should not be construed as limiting the invention.
Example 1:
the oil sealing parts on the turbocharger in the prior art generally adopt the sealing rings, but the cross sections of the sealing rings are all rectangular, and in the actual use process, the resistance borne by the sealing rings is axial force, so that the sealing rings are difficult to radially contract, the sealing rings are very difficult to assemble, and the sealing rings are easy to damage and deform, so that the resource waste and the product quality reduction are caused. Some products have serious oil leakage, especially small high-speed superchargers used on cars, the oil leakage is more serious and common, and the reliability of the whole car is influenced.
In order to solve the above technical problems, the present embodiment provides a sealing structure applied to a pressure end and a vortex end of a turbocharger, as shown in fig. 1-2, including a pressure-expanding plate 1, an intermediate body 2, a shaft seal 3 and a sealing ring 4; the pressure expansion plate 1 is detachably arranged at the end of a compressor of the turbocharger, and the pressure expansion plate 1 is matched with a pressure shell of the compressor; a shaft hole is formed in the center of the pressure expansion plate 1, one end of a turbine shaft 5 of the turbocharger is fixedly connected with a turbine 6, and the other end of the turbine shaft penetrates through the shaft hole to be detachably connected with an impeller 7 of the turbocharger; the intermediate 2 is sleeved on the turbine shaft 5; a thrust bearing 8 is detachably arranged between the intermediate body 2 and the diffusion plate 1; the shaft seal 3 is in a cylindrical structure with two open ends; one end of the shaft seal 3 is fixedly provided with a flange 31; the shaft seal 3 is sleeved on the turbine shaft 5, and the shaft seal 3 penetrates through the shaft hole; one end of the flange 31 is propped against the pressure expanding plate 1, and the other end thereof is propped against the thrust bearing 8; two sealing ring grooves 32 are formed in the shaft seal 3; the two sealing ring grooves 32 are respectively and detachably provided with a sealing ring 4; the peripheral surface of the sealing ring 4 is attached to the hole wall of the shaft hole; the edge of the sealing ring 4 on the contraction side is a full round angle 40 when the sealing ring 4 contacts the pressure expansion plate 1. By changing the structure and the quantity of the sealing rings 4, when the sealing rings 4 are installed, because of the stress characteristic of the full fillet 40, component force which enables the sealing rings 4 to contract radially can be generated, so that the sealing rings 4 contract more easily in the installation process, the possibility of damage and deformation of the sealing rings is reduced, the sealing effect of the turbocharger is further improved, the oil leakage probability is reduced, the structure is simple, the implementation is easy, the economy is good, the safety coefficient is high, the product quality is improved to a certain extent, and the production cost of enterprises is reduced.
In order to improve the oil sealing capability of the compressor end sealing structure of the turbocharger, the sealing structure applied to the compressor end and the turbine end of the turbocharger provided by the embodiment is preferably, as shown in fig. 3, a first step 33 and a second step 34 are fixedly arranged on the outer circumferential surface of the shaft seal 3; the first step 33 and the second step 34 are annular; the first step 33 and the second step 34 are sleeved on the shaft seal 3; one end of the first step 33 is fixedly connected with the flange 31, and the other end thereof is fixedly connected with one end of the second step 34; the annular surface at the other end of the second step 34 is flush with the annular surface of the shaft seal 3; the outer diameter of the first step 33 is larger than that of the second step 34; the shaft hole is of a step-shaped shaft hole structure matched with the outer circumferential surfaces of the first step 33 and the second step 34; the first step 33 and the second step 34 are respectively provided with a sealing ring groove 32; the sealing ring groove 32 is detachably provided with a sealing ring 4. The turbine shaft 5 is sleeved with the shaft seal 3 with the outer peripheral surface in a step shape, the outer diameter of the shaft seal 3 is gradually increased along the direction of the impeller 7 pointing to the turbine 6, and the shaft hole of the pressure expanding plate 1 is a step-shaped shaft hole matched with the outer peripheral surface of the shaft seal 3, so that the inner diameter of the step-shaped shaft hole is gradually increased along the direction of the impeller 7 pointing to the turbine 6, and therefore when lubricating oil in a lubricating channel overflows to a compressor shell from between the shaft seal 3 and the pressure expanding plate 1, the inner diameter of an inner step part through which the lubricating oil needs to flow is gradually reduced, the lubricating oil is difficult to overflow to the compressor shell from between the shaft seal 3 and the pressure expanding plate 1, and therefore the oil sealing capacity of.
In order to improve the sealing performance of the seal ring 4, the seal structure applied to the pressure end and the vortex end of the turbocharger provided by the present embodiment is preferably, as shown in fig. 4, that the seal ring 4 includes a first seal ring 41 and a second seal ring 42; the first sealing ring 41 is in a convex structure; the second sealing ring 42 is of a concave structure; the inner diameter of the first seal ring 41 is the same as the inner diameter of the second seal ring 42; the first seal ring 41 and the second seal ring 42 are connected in a clamping manner; the full fillet 40 is fixedly disposed on the second seal ring 42. In this embodiment, the first sealing ring 41 and the second sealing ring 42 are made of the same material, and are integrally connected by clamping to form a complete sealing ring, and the tight fit of the two sealing rings ensures that the two sealing rings can be sealed with each other in the axial direction and the radial direction, thereby improving the sealing effect of the sealing ring 4.
In order to further improve the sealing performance of the sealing ring 4, in the sealing structure applied to the pressure end and the vortex end of the turbocharger provided in this embodiment, preferably, as shown in fig. 4, the first sealing ring 41 is provided with a first gap 411; the second sealing ring 42 is provided with a second gap 421; the first gap 411 and the second gap 421 are not in the same plane. Typically, the seal ring 4 will be provided with a gap to facilitate installation, but the gap is the most susceptible to leakage. Therefore, it is necessary to ensure that the first gap 411 and the second gap 421 are not in the same plane, i.e. the two gaps cannot be in gap communication, otherwise the sealing effect is relatively poor.
In order to make the snap connection between the first seal ring 41 and the second seal ring 42 more reliable, in the seal structure applied to the pressure end and the vortex end of the turbocharger provided in the present embodiment, preferably, as shown in fig. 5, a tooth-shaped connecting portion 43 for improving the sealing performance is fixedly arranged at the concave-convex clamping position of the first seal ring 41 and the second seal ring 42. By the tooth-shaped connecting part 43, the connection reliability of the joint of the two sealing parts can be improved, so that the sealing effect of the two sealing rings is further improved.
In order to improve the reliability of the performance of the turbocharger, the sealing structure applied to the pressure end and the vortex end of the turbocharger provided by the embodiment preferably has a diagonal shape of each of the first gap 411 and the second gap 421, as shown in fig. 4. Through setting up the opening of diagonal form for the tortuous extension of opening sideline, the clearance of opening department also reduces relatively, thereby can effectively block the seepage of lubricating oil, has played good leak protection effect, has solved the oil leak problem of booster basically.
In order to further improve the reliability of the performance of the turbocharger, the sealing structure applied to the pressure end and the vortex end of the turbocharger provided by the embodiment is preferably that, as shown in fig. 6, the first gap 411 and the second gap 421 are both in a step shape. Through setting up the opening of stairstepping for be mutual block form when the opening folds, not only blockked the seepage of lubricating oil more effectively, still improved the connection reliability of two sealing rings to a certain extent.
In order to further improve the reliability of the performance of the turbocharger, in the sealing structure applied to the pressure end and the vortex end of the turbocharger provided by the embodiment, preferably, as shown in fig. 7, each of the first gap 411 and the second gap 421 has a rectangular tooth shape. Through setting up the profile of tooth's opening of rectangle, prolonged the opening sideline, reduced the clearance of opening department, and the opening both ends that correspond can intermeshing to not only improved the sealed effect of two sealing rings, still improved the stability of two sealing ring combinations.
In order to further improve the reliability of the performance of the turbocharger, in the sealing structure applied to the pressure end and the vortex end of the turbocharger provided in the present embodiment, preferably, as shown in fig. 8, the first gap 411 and the second gap 421 are respectively provided with the snap interfaces 44 which are reversely symmetrical and matched. Through setting up hasp interface 44 for have self-locking sealing performance between first breach 411 and second breach 421, thereby the oil gas of turbo charger inner part can not leak through the breach of sealing ring 4 basically.
In order to prolong the service life of the sealing ring 4, the sealing structure applied to the pressure end and the vortex end of the turbocharger provided by the embodiment is preferably an M2 tool steel sealing ring. The M2 tool steel sealing ring has good thermal fatigue resistance, so that the service life of the sealing ring can be prolonged, and the product quality of the turbocharger is improved.
Those skilled in the art should understand that, in combination with the prior art and the above embodiments, those skilled in the art can implement the modifications, which are not described herein; such variations do not affect the essence of the present invention, and are not described herein.
The preferred embodiments of the present invention have been described; it is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; the skilled person in the art, without affecting the essence of the invention, may make numerous possible variations and modifications, or may modify equivalent embodiments, without departing from the technical solution of the invention; therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.
Claims (10)
1. A sealing structure applied to a pressure end and a vortex end of a turbocharger is characterized by comprising a pressure expansion plate, an intermediate body, a shaft seal and a sealing ring; the pressure expansion plate is detachably arranged at the compressor end of the turbocharger, and is matched with the pressure shell of the compressor; the center of the pressure expansion plate is provided with a shaft hole, one end of a turbine shaft of the turbocharger is fixedly connected with the turbine, and the other end of the turbine shaft of the turbocharger penetrates through the shaft hole to be detachably connected with an impeller of the turbocharger; the intermediate body is sleeved on the turbine shaft; a thrust bearing is detachably arranged between the intermediate body and the pressure expansion plate; the shaft seal is of a cylindrical structure with openings at two ends; a flange is fixedly arranged at one end of the shaft seal; the shaft seal is sleeved on the turbine shaft and penetrates through the shaft hole; one end of the flange props against the pressure expanding plate, and the other end of the flange props against the thrust bearing;
two sealing ring grooves are formed in the shaft seal; the sealing rings are detachably arranged in the two sealing ring grooves respectively; the peripheral surface of the sealing ring is attached to the hole wall of the shaft hole; the sealing ring is contacted with the diffusion plate to ensure that the edge angle of the contracted side of the sealing ring is a full fillet.
2. The sealing structure applied to the pressure end and the vortex end of the turbocharger according to claim 1, wherein a first step and a second step are fixedly arranged on the outer circumferential surface of the shaft seal;
the first step and the second step are annular; the first step and the second step are sleeved on the shaft seal; one end of the first step is fixedly connected with the flange, and the other end of the first step is fixedly connected with one end of the second step; the annular surface at the other end of the second step is flush with the annular surface of the shaft seal; the excircle diameter of the first step is larger than that of the second step; the shaft hole is of a step-shaped shaft hole structure matched with the outer circumferential surfaces of the first step and the second step; the first step and the second step are respectively provided with the sealing ring grooves; the sealing ring is detachably arranged in the sealing ring groove.
3. The seal structure applied to a pressure end and a scroll end of a turbocharger according to claim 1, wherein the seal ring comprises a first seal ring and a second seal ring; the first sealing ring is of a convex structure; the second sealing ring is of a concave structure; the inner diameter of the first sealing ring is the same as that of the second sealing ring; the first sealing ring is connected with the second sealing ring in a clamping manner; the full round angle is fixedly arranged on the second sealing ring.
4. A sealing structure applied to a pressure end and a vortex end of a turbocharger according to claim 3, wherein the first sealing ring is provided with a first notch; a second gap is formed in the second sealing ring; the first gap and the second gap are not in the same plane.
5. The sealing structure applied to the pressure end and the vortex end of the turbocharger according to claim 3, wherein a tooth-shaped connecting part for improving sealing performance is fixedly arranged at the concave-convex clamping joint of the first sealing ring and the second sealing ring.
6. The seal structure applied to the pressure end and the vortex end of the turbocharger according to claim 4, wherein the first gap and the second gap are each in a diagonal shape.
7. The seal structure applied to the pressure end and the vortex end of the turbocharger according to claim 4, wherein the first gap and the second gap are stepped.
8. The seal structure applied to the pressure end and the vortex end of the turbocharger according to claim 4, wherein the first gap and the second gap are both in the shape of a rectangular tooth.
9. The sealing structure applied to the pressure end and the vortex end of the turbocharger according to claim 4, wherein the first gap and the second gap are respectively provided with oppositely symmetrical and matched snap connectors.
10. The seal structure applied to the pressure end and the vortex end of the turbocharger according to any one of claims 1 to 9, wherein the seal ring is an M2 tool steel seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921598251.9U CN210714853U (en) | 2019-09-24 | 2019-09-24 | Sealing structure applied to pressure end and vortex end of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921598251.9U CN210714853U (en) | 2019-09-24 | 2019-09-24 | Sealing structure applied to pressure end and vortex end of turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210714853U true CN210714853U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921598251.9U Expired - Fee Related CN210714853U (en) | 2019-09-24 | 2019-09-24 | Sealing structure applied to pressure end and vortex end of turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210714853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113861681A (en) * | 2021-09-06 | 2021-12-31 | 南通汇平高分子新材料有限公司 | Composite material for sealing structure of turbocharger and preparation method thereof |
-
2019
- 2019-09-24 CN CN201921598251.9U patent/CN210714853U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113861681A (en) * | 2021-09-06 | 2021-12-31 | 南通汇平高分子新材料有限公司 | Composite material for sealing structure of turbocharger and preparation method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 Termination date: 20210924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |