CN221610050U - Sealing structure of output shaft - Google Patents
Sealing structure of output shaft Download PDFInfo
- Publication number
- CN221610050U CN221610050U CN202323420928.9U CN202323420928U CN221610050U CN 221610050 U CN221610050 U CN 221610050U CN 202323420928 U CN202323420928 U CN 202323420928U CN 221610050 U CN221610050 U CN 221610050U
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- China
- Prior art keywords
- output shaft
- sealing
- thrust output
- shaft
- impeller
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- 238000007789 sealing Methods 0.000 title claims abstract description 90
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to the technical field of automobile turbocharger parts, and discloses a sealing structure of an output shaft, which comprises a turbine shell, a thrust output shaft and a sealing part, wherein the thrust output shaft is rotatably arranged on the inner side of the turbine shell, and the sealing part is arranged on the outer surface of the thrust output shaft; an exhaust pipe orifice is formed in the left side of the turbine casing, an air inlet pipe orifice is formed in the right side of the turbine casing, a turbine impeller is rotatably mounted on the inner side of the exhaust pipe orifice, and a compressor impeller is rotatably mounted on the inner side of the air inlet pipe orifice; the sealing member includes two shrink shafts. The sealing structure of the output shaft is characterized in that the thrust output shaft and the sealing coating are arranged on the outer side of the thrust output shaft, and the sealing structure is made of materials with certain high corrosion resistance, high wear resistance and good sealing performance, and meanwhile can continuously keep sealing by means of the sealing sliding groove and the sealing sliding block, and an elastic annular sealing piece is formed by means of the shrinkage shaft and the thrust output shaft, so that the performance and the service life of the sealing structure are improved.
Description
Technical Field
The utility model relates to the technical field of automobile turbocharger parts, in particular to a sealing structure of an output shaft.
Background
The automobile turbocharger is an important part of an automobile engine, and has the function of improving the air inflow of the engine by compressing air so as to improve the power and torque of the engine, and a sealing structure is required to be arranged on an output shaft of the turbocharger to prevent gas leakage so as to ensure the normal operation of the engine.
However, the existing automobile turbocharger has serious gas leakage phenomenon due to unreasonable design or improper material selection of the sealing structure, and the performance and service life of the engine are affected, so that the sealing structure of the output shaft is provided.
Disclosure of utility model
(One) solving the technical problems
Aiming at the defects of the prior art, the utility model provides the sealing structure of the output shaft, which has the advantages of stable output, enhanced sealing effect and the like, and solves the problem of poor sealing effect.
(II) technical scheme
In order to achieve the purpose of stabilizing output and enhancing sealing effect, the utility model provides the following technical scheme: the sealing structure of the output shaft comprises a turbine shell, a thrust output shaft and a sealing component, wherein the thrust output shaft is rotatably arranged on the inner side of the turbine shell, and the sealing component is arranged on the outer surface of the thrust output shaft;
An exhaust pipe orifice is formed in the left side of the turbine casing, an air inlet pipe orifice is formed in the right side of the turbine casing, a turbine impeller is rotatably mounted on the inner side of the exhaust pipe orifice, a compressor impeller is rotatably mounted on the inner side of the air inlet pipe orifice, and thrust output shafts are rotatably mounted on the inner sides of the turbine impeller and the compressor impeller;
the sealing part comprises two shrinkage shafts, and the two shrinkage shafts are respectively sleeved on the outer surface of the thrust output shaft.
As a preferable technical scheme of the utility model, bearings are rotatably arranged on opposite sides of the turbine impeller and the compressor impeller, and sealing expansion rings are arranged on opposite sides of the two bearings.
The beneficial effects of the above preferable technical scheme are as follows: the sealing expander is an elastic sealing element that creates a sealing condition by contact with the bearing.
As a preferable technical scheme of the utility model, an impeller rotating shaft connected with a thrust output shaft is rotatably arranged on the inner side of the turbine impeller, impeller clamping teeth are arranged on the outer surface of the impeller rotating shaft, and a friction head is arranged at one end, far away from a bearing, of the impeller rotating shaft.
The beneficial effects of the above preferable technical scheme are as follows: the two contact surfaces of the turbine impeller and the bearing are separated by the friction head, and a layer of sealing material is filled between the contact surfaces to achieve the sealing effect and prolong the service life of the turbine impeller and the bearing.
As a preferable technical scheme of the utility model, a sealing sliding groove is formed in the outer surface of the thrust output shaft, a sealing sliding block positioned on the inner side of the contraction shaft is arranged in the inner side of the sealing sliding groove in a sliding manner, and a limiting block positioned on the inner side of the contraction shaft is fixedly arranged at one end, far away from the bearing, of the thrust output shaft.
The beneficial effects of the above preferable technical scheme are as follows: the thrust output shaft has a certain pressure effect during operation, and the elastic annular sealing piece is formed due to the mutual matching of the sealing sliding groove and the sealing sliding block.
As a preferable technical scheme of the utility model, a sealing coating is arranged on the outer surface of the contraction shaft, and a piston ring attached to the outer side of the thrust output shaft is arranged on one side of the contraction shaft, which is close to the thrust output shaft.
The beneficial effects of the above preferable technical scheme are as follows: the piston ring can not only control gas leakage in the cylinder, but also scrape lubricating oil on the cylinder wall.
As a preferable technical scheme of the utility model, the inner side of the contraction shaft is provided with the air storage chambers, the inner sides of the air storage chambers are connected with exhaust holes in a two-by-two communicated mode, and the exhaust holes positioned at the outer sides of the air storage chambers extend to the outer sides of the contraction shaft.
The beneficial effects of the above preferable technical scheme are as follows: the gas extruded by the pressure is stored in the gas storage chamber, so that the piston operation of the thrust output shaft and the contraction shaft can be smoothly performed.
(III) beneficial effects
Compared with the prior art, the utility model provides a sealing structure of an output shaft, which comprises the following components
The beneficial effects are that:
the sealing structure of the output shaft is characterized in that the thrust output shaft and the sealing coating are arranged on the outer side of the thrust output shaft, and the sealing structure is made of materials with certain high corrosion resistance, high wear resistance and good sealing performance, and meanwhile can continuously keep sealing by means of the sealing sliding groove and the sealing sliding block, and an elastic annular sealing piece is formed by means of the shrinkage shaft and the thrust output shaft, so that the performance and the service life of the sealing structure are improved.
Drawings
FIG. 1 is a schematic plan view of the present utility model;
FIG. 2 is a schematic view of the internal cross-sectional plan structure of the thrust output shaft of the present utility model;
FIG. 3 is a schematic view of the thrust output shaft of the present utility model.
In the figure: 1. a turbine housing; 2. an exhaust pipe orifice; 3. a turbine wheel; 31. an impeller rotating shaft; 32. impeller latch; 33. a friction head; 4. a compressor wheel; 5. a bearing; 6. a thrust output shaft; 61. a limiting block; 62. sealing the sliding groove; 63. a seal slider; 7. a shrink shaft; 71. a sealing coating; 72. an air storage chamber; 73. an exhaust hole; 74. piston rings; 8. an air inlet pipe orifice; 9. sealing expansion ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-3, a sealing structure of an output shaft includes a turbine housing 1, a thrust output shaft 6 and a sealing member, the thrust output shaft 6 is rotatably mounted on the inner side of the turbine housing 1, and the sealing member is disposed on the outer surface of the thrust output shaft 6.
An exhaust pipe orifice 2 is arranged on the left side of the turbine casing 1, an air inlet pipe orifice 8 is arranged on the right side of the turbine casing 1, a turbine wheel 3 is rotatably arranged on the inner side of the exhaust pipe orifice 2, a compressor wheel 4 is rotatably arranged on the inner side of the air inlet pipe orifice 8, and a thrust output shaft 6 is rotatably arranged on the inner sides of the turbine wheel 3 and the compressor wheel 4.
In this embodiment, the bearings 5 are rotatably mounted on opposite sides of the turbine wheel 3 and the compressor wheel 4, and sealing expander rings 9 are provided on opposite sides of the two bearings 5, the sealing expander rings 9 being an elastic sealing member, and sealing conditions being formed by contact with the bearings 5.
In this embodiment, an impeller rotating shaft 31 connected with a thrust output shaft 6 is rotatably mounted on the inner side of a turbine impeller 3, impeller latches 32 are provided on the outer surface of the impeller rotating shaft 31, a friction head 33 is provided at one end of the impeller rotating shaft 31 far away from a bearing 5, two contact surfaces of the turbine impeller 3 and the bearing 5 are separated by the friction head 33, and a layer of sealing material is filled between the contact surfaces to achieve a sealing effect, so that the service life of the sealing device is prolonged.
The sealing part comprises two shrinkage shafts 7, and the two shrinkage shafts 7 are respectively sleeved on the outer surface of the thrust output shaft 6.
In this embodiment, the outer surface of the thrust output shaft 6 is provided with a sealing sliding groove 62, a sealing sliding block 63 located at the inner side of the shrinkage shaft 7 is slidingly installed in the sealing sliding groove 62, a limiting block 61 located at the inner side of the shrinkage shaft 7 is fixedly installed at one end of the thrust output shaft 6 far away from the bearing 5, which can achieve a certain pressure effect when the thrust output shaft 6 operates, and an elastic annular sealing member is formed due to the mutual matching of the sealing sliding groove 62 and the sealing sliding block 63.
In this embodiment, the outer surface of the contraction shaft 7 is provided with the sealing coating 71, and one side of the contraction shaft 7 close to the thrust output shaft 6 is provided with the piston ring 74 attached to the outer side of the thrust output shaft 6, and the piston ring 74 can not only control gas leakage in the cylinder, but also scrape lubricating oil on the cylinder wall.
In this embodiment, the air storage chamber 72 is disposed inside the shrinkage shaft 7, the air discharge holes 73 are connected to the inside of the air storage chamber 72 in a two-by-two communication manner, the air discharge holes 73 located outside the air storage chamber 72 extend to the outside of the shrinkage shaft 7, and the air extruded by the pressure is stored in the air storage chamber 72, so that the piston operation of the thrust output shaft 6 and the shrinkage shaft 7 can be smoothly performed.
The beneficial effects in this embodiment are as follows:
By arranging the thrust output shaft 6 and the sealing coating 71 on the outer side of the thrust output shaft 6, materials with certain high corrosion resistance, high wear resistance and good sealing performance are adopted, and meanwhile, the sealing can be continuously kept by virtue of the sealing sliding groove 62 and the sealing sliding block 63, and an elastic annular sealing piece is formed by virtue of the shrinkage shaft 7 and the thrust output shaft 6, so that the performance and the service life of the sealing piece are improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The sealing structure of the output shaft comprises a turbine shell (1), a thrust output shaft (6) and a sealing part, wherein the thrust output shaft (6) is rotatably arranged on the inner side of the turbine shell (1), and the sealing part is arranged on the outer surface of the thrust output shaft (6);
The method is characterized in that: an exhaust pipe orifice (2) is formed in the left side of the turbine casing (1), an air inlet pipe orifice (8) is formed in the right side of the turbine casing (1), a turbine impeller (3) is rotatably mounted on the inner side of the exhaust pipe orifice (2), a compressor impeller (4) is rotatably mounted on the inner side of the air inlet pipe orifice (8), and thrust output shafts (6) are rotatably mounted on the inner sides of the turbine impeller (3) and the compressor impeller (4);
The sealing part comprises two shrinkage shafts (7), and the two shrinkage shafts (7) are respectively sleeved on the outer surface of the thrust output shaft (6).
2. The sealing structure of an output shaft according to claim 1, characterized in that: the turbine impeller (3) and the compressor impeller (4) are rotatably provided with bearings (5) on opposite sides, and sealing expansion rings (9) are arranged on opposite sides of the two bearings (5).
3. A sealing structure of an output shaft according to claim 2, characterized in that: the inner side of the turbine impeller (3) is rotatably provided with an impeller rotating shaft (31) connected with the thrust output shaft (6), the outer surface of the impeller rotating shaft (31) is provided with impeller latches (32), and one end, far away from the bearing (5), of the impeller rotating shaft (31) is provided with a friction head (33).
4. A sealing structure for an output shaft according to claim 3, characterized in that: the outer surface of the thrust output shaft (6) is provided with a sealing sliding groove (62), the inner side of the sealing sliding groove (62) is slidably provided with a sealing sliding block (63) positioned on the inner side of the shrinkage shaft (7), and one end, far away from the bearing (5), of the thrust output shaft (6) is fixedly provided with a limiting block (61) positioned on the inner side of the shrinkage shaft (7).
5. The sealing structure of an output shaft according to claim 1, characterized in that: the outer surface of the shrinkage shaft (7) is provided with a sealing coating (71), and one side of the shrinkage shaft (7) close to the thrust output shaft (6) is provided with a piston ring (74) attached to the outer side of the thrust output shaft (6).
6. The sealing structure of an output shaft according to claim 1, characterized in that: the inner side of the shrinkage shaft (7) is provided with an air storage chamber (72), the inner sides of the air storage chambers (72) are connected with exhaust holes (73) in a two-by-two communicated mode, and the exhaust holes (73) located on the outer side of the air storage chambers (72) extend to the outer side of the shrinkage shaft (7).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221610050U true CN221610050U (en) | 2024-08-27 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |