CN214221597U

CN214221597U - Shaft end sealing structure of turbine shaft of turbocharger

Info

Publication number: CN214221597U
Application number: CN202023293133.2U
Authority: CN
Inventors: 于波
Original assignee: Jiangsu Delin Auto Parts Co ltd
Current assignee: Jiangsu Delin Auto Parts Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-17
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a turbine shaft axle head seal structure of turbo charger relates to turbo charger's turbine shaft axle head seal field, including the turbine shaft main part, one side of turbine shaft main part is connected with the impeller, and the surface both sides of turbine shaft main part all are connected with the second sealing member, and the both sides of two second sealing members all are connected with the second pivot, and the inside of two second sealing members all is connected with second magnet, and the sealing washer has all been cup jointed to the inner circle of two second sealing members. The utility model discloses a first oil return chamber, the second sealing ring, the third sealing ring, second oil return chamber, the oil return opening plays the effect that increases the leakproofness and reduce the oil leak to the structure, at turbine shaft main part during operation, lubricating oil flows into the second through the oil return opening and flows back the intracavity, or advance first backward flow intracavity by the effort top of turbine shaft main part, make most wheel lubricating oil get into the backward flow intracavity, increase the leakproofness through second sealing ring and third sealing ring simultaneously, reduce the turbine shaft at the condition of during the oil leak.

Description

Shaft end sealing structure of turbine shaft of turbocharger

Technical Field

The utility model relates to a turbine shaft axle head sealing field of turbo charger specifically is turbo charger's turbine shaft axle head seal structure.

Background

At present, many automobiles adopt engines with a turbocharger structure, the turbocharger is actually air compression, and the air compression is realized by pushing a turbine in a turbine chamber by using the inertia force of exhaust gas discharged by the engine, and the turbine drives a coaxial impeller which is used for pressurizing air sent by an air filter pipeline so as to enable the air to enter a cylinder.

Current turbo charger's turbine shaft axle head seal structure, most simple structure, the leakproofness is relatively poor, leads to the turbine shaft to have the oil leak condition when rotatory, has wasted the most lubricating oil in the seal ring structure, influences the turbine shaft and uses, and current turbo charger's turbine shaft axle head seal structure, most structural fixing, it is comparatively inconvenient when installation and dismantlement, lead to the inconvenient maintenance of turbine shaft to change, influence the use of turbine shaft.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems of oil leakage and inconvenient disassembly and maintenance caused by poor sealing, a shaft end sealing structure of a turbine shaft of a turbocharger is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a turbine shaft end sealing structure of a turbocharger comprises a turbine shaft main body, wherein one side of the turbine shaft main body is connected with an impeller, two sides of the outer surface of the turbine shaft main body are connected with second sealing pieces, two sides of the two second sealing pieces are connected with second rotating shafts, second magnets penetrate through the outer surfaces of the two second sealing pieces, inner rings of the two second sealing pieces are sleeved with sealing rings, inner rings of the two sealing rings are sleeved with first sealing rings, two sides of the two first sealing rings are connected with third rotating shafts, outer surfaces of the two first sealing rings penetrate through the third magnets, first sealing pieces are sleeved on the outer portion of the turbine shaft main body, two sides of the first sealing pieces are connected with first rotating shafts, first magnets penetrate through the outer surfaces of the first sealing pieces, and sealing blocks penetrate through the tops of the first sealing pieces, an oil tank is arranged above the inside of the first sealing element, a first oil return cavity is arranged inside the first sealing element, an inner ring of the first sealing element is connected with a second sealing ring and a third sealing ring respectively, a second oil return cavity is arranged inside the turbine shaft main body, and oil return openings are formed in one ends of the first oil return cavity and one end of the second oil return cavity.

Preferably, the top and bottom of the second sealing member are rotatably connected by a second rotating shaft, and the top and bottom of the first sealing ring are rotatably connected by a third rotating shaft.

Preferably, the sealing rings are four, and the four sealing rings are all in a semi-circular arc shape.

Preferably, the top and bottom of the second sealing member are detachably coupled by a second magnet, and the top and bottom of the first sealing ring are detachably coupled by a third magnet.

Preferably, the number of the second sealing rings and the number of the third sealing rings are two, the two second sealing rings are rotatably connected with the first sealing element, and the two third sealing rings are rotatably connected with the turbine shaft main body.

Preferably, the top and the bottom of the first sealing member are rotatably connected by a first rotating shaft, and the top and the bottom of the first sealing member are detachably connected by a first magnet.

Preferably, the number of the second oil return cavities is two, and the two second oil return cavities are distributed in a mirror image mode along the central line of the transverse shaft of the turbine shaft main body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a first oil return chamber, second sealing ring, third sealing ring, second oil return chamber, oil return opening play the effect that increases the leakproofness and reduce the oil leak to the structure, and when the turbine shaft main part was worked, lubricating oil flowed into the second backward flow intracavity through the oil return opening, or was pushed into the first backward flow intracavity by the effort of turbine shaft main part, made most wheel lubricating oil get into the backward flow intracavity, increased the leakproofness through second sealing ring and third sealing ring simultaneously, reduced the turbine shaft during operation oil leak the condition;

2. the utility model discloses a first pivot, first magnet, the second pivot, second magnet, the third pivot, third magnet and sealing washer play the effect of easy to assemble dismantlement to the structure, at first open first sealing member, make first sealing member can cup joint in the turbine shaft main part, later open first sealing ring, make first sealing ring can be cup jointed in the turbine shaft main part, open the second sealing member again, make the second sealing member can cup joint on first sealing ring, second sealing member and first sealing ring pass through the sealing washer and connect, facilitate the mechanism installation and dismantle the maintenance.

Drawings

Fig. 1 is a schematic sectional structure view of a first sealing member of the present invention;

fig. 2 is a schematic side view of the first sealing member of the present invention;

FIG. 3 is a schematic side sectional view of a second sealing member according to the present invention;

fig. 4 is an enlarged view of the structure at a in fig. 1 of the present invention.

In the figure: 1. a turbine shaft body; 2. an impeller; 3. a first seal member; 4. a second seal member; 5. a first seal ring; 6. a sealing block; 7. an oil tank; 8. a first oil return cavity; 9. a second seal ring; 10. a third seal ring; 11. a second oil return cavity; 12. an oil return port; 13. a first rotating shaft; 14. a first magnet; 15. a seal ring; 16. a second rotating shaft; 17. a third rotating shaft; 18. a second magnet; 19. a third magnet.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-4, a shaft end sealing structure of a turbine shaft of a turbocharger includes a turbine shaft main body 1, an impeller 2, a first sealing element 3, a second sealing element 4, a first sealing ring 5, a sealing block 6, an oil tank 7, a first oil return cavity 8, a second sealing ring 9, a third sealing ring 10, a second oil return cavity 11, an oil return port 12, a first rotating shaft 13, a first magnet 14, a sealing ring 15, a second rotating shaft 16, a third rotating shaft 17, a second magnet 18 and a third magnet 19, wherein one side of the turbine shaft main body 1 is connected with the impeller 2, two sides of the outer surface of the turbine shaft main body 1 are connected with the second sealing element 4, two sides of the two second sealing elements 4 are connected with the second rotating shaft 16, two outer surfaces of the two second sealing elements 4 are penetrated with the second magnet 18, inner rings of the two second sealing elements 4 are sleeved with the sealing ring 15, inner rings of the two sealing rings 15 are sleeved with the first sealing ring 5, the two sides of the two first sealing rings 5 are both connected with a third rotating shaft 17, the outer surfaces of the two first sealing rings 5 are both penetrated with a third magnet 19, the outer part of the turbine shaft main body 1 is sleeved with a first sealing element 3, the two sides of the first sealing element 3 are both connected with a first rotating shaft 13, the outer surface of the first sealing element 3 is penetrated with a first magnet 14, the top part of the first sealing element 3 is penetrated with a sealing block 6, the upper part of the inner part of the first sealing element 3 is provided with an oil tank 7, the inner part of the first sealing element 3 is provided with a first oil returning cavity 8, the inner ring of the first sealing element 3 is respectively connected with a second sealing ring 9 and a third sealing ring 10, the inner part of the turbine shaft main body 1 is provided with a second oil returning cavity 11, one end of the first oil returning cavity 8 and one end of the second oil returning cavity 11 are both provided with an oil returning opening 12, when the turbine shaft main body 1 and the impeller 2 work, lubricating oil flows into the second oil returning cavity 11 through the oil returning opening 12, or the lubricating oil is pushed into the first oil return cavity 8 by the acting force of the turbine shaft main body 1, so that most of the lubricating oil enters the oil return cavity, meanwhile, the sealing performance is improved through the second sealing ring 9 and the third sealing ring 10, and the oil leakage condition of the turbine shaft during working is reduced.

Please refer to fig. 3, the top and the bottom of the second sealing element 4 are rotatably connected through a second rotating shaft 16, and the top and the bottom of the first sealing ring 5 are rotatably connected through a third rotating shaft 17, so that the worker opens the first sealing ring 5, sleeves the first sealing ring 5 on the turbine shaft main body 1, and after fixing the first sealing ring 5, the worker opens the second sealing element 4, sleeves the second sealing element 4 on the first sealing ring 5.

Please refer to fig. 3, the number of the sealing rings 15 is four, and the four sealing rings 15 are in a semi-circular arc shape, and the second sealing member 4 is connected to the first sealing ring 5 through the sealing rings 15.

Please refer to fig. 3, the top and the bottom of the second sealing element 4 are detachably connected by the second magnet 18, the top and the bottom of the first sealing ring 5 are detachably connected by the third magnet 19, the worker opens the first sealing ring 5, sleeves the first sealing ring 5 on the turbine shaft main body 1, fixes the first sealing ring 5 by the third magnet 19, and after fixing the first sealing ring 5, the worker opens the second sealing element 4, sleeves the second sealing element 4 on the first sealing ring 5, and fixes the second sealing element by the second magnet 18.

Please refer to fig. 1 and 4, two second seal rings 9 and two third seal rings 10 are disposed, the two second seal rings 9 are rotatably connected to the first seal member 3, and the two third seal rings 10 are rotatably connected to the turbine shaft body 1, so that the sealing performance is enhanced by the second seal rings 9 and the third seal rings 10.

Please refer to fig. 2, the top and the bottom of the first sealing member 3 are rotatably connected by the first rotating shaft 13, and the top and the bottom of the first sealing member 3 are detachably connected by the first magnet 14, so that the worker can open the first sealing member 3, and then the first sealing member 3 is sleeved on the turbine shaft body 1 and fixed by the first magnet 14.

Please refer to fig. 1 and 4, two second oil return cavities 11 are provided, and the two second oil return cavities 11 are distributed along the center line of the horizontal shaft of the turbine shaft body 1 in a mirror image manner, and the lubricating oil flows into the second oil return cavities 11 through the oil return openings 12 or is pushed into the first oil return cavities 8 by the acting force of the turbine shaft body 1.

The working principle is as follows: firstly, a worker opens a first sealing element 3, sleeves the first sealing element 3 on a turbine shaft main body 1, fixes the first sealing element by a first magnet 14, opens a first sealing ring 5 after the first sealing element 3 is fixed, sleeves the first sealing ring 5 on the turbine shaft main body 1, fixes the first sealing ring 5 by a third magnet 19, opens a second sealing element 4 after the first sealing ring 5 is fixed, sleeves the second sealing element 4 on the first sealing ring 5, fixes the second sealing element by a second magnet 18, connects the second sealing element 4 with the first sealing ring 5 by a sealing ring 15, then takes out a sealing block 6, pours lubricating oil into an oil tank 7, when the turbine shaft main body 1 and an impeller 2 work, the lubricating oil flows into a second oil return cavity 11 through an oil return opening 12 or is pushed into a first oil return cavity 8 by the acting force of the turbine shaft main body 1, so that most of the lubricating oil enters the oil return cavity, meanwhile, the sealing performance is improved through the second sealing ring 9 and the third sealing ring 10, and the oil leakage condition of the turbine shaft during work is reduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Turbo charger's turbine shaft axle head seal structure includes turbine shaft main part (1), its characterized in that: one side of the turbine shaft main body (1) is connected with an impeller (2), two sides of the outer surface of the turbine shaft main body (1) are connected with second sealing parts (4), two sides of the two second sealing parts (4) are connected with second rotating shafts (16), two second magnets (18) penetrate through the outer surfaces of the two second sealing parts (4), sealing rings (15) are sleeved on inner rings of the two second sealing parts (4), first sealing rings (5) are sleeved on inner rings of the two sealing rings (15), third rotating shafts (17) are connected on two sides of the two first sealing rings (5), third magnets (19) penetrate through the outer surfaces of the two first sealing rings (5), a first sealing part (3) is sleeved on the outer portion of the turbine shaft main body (1), two sides of the first sealing part (3) are connected with first rotating shafts (13), the outer surface of first sealing member (3) runs through there is first magnet (14), the top of first sealing member (3) runs through there is sealed piece (6), oil tank (7) have been seted up to the inside top of first sealing member (3), first oil return chamber (8) have been seted up to the inside of first sealing member (3), the inner circle of first sealing member (3) is connected with second sealing ring (9) and third sealing ring (10) respectively, second oil return chamber (11) have been seted up to the inside of turbine shaft main part (1), oil return opening (12) have all been seted up to the one end of first oil return chamber (8) and second oil return chamber (11).

2. The turbine shaft end seal structure of a turbocharger according to claim 1, characterized in that: the top and the bottom of the second sealing element (4) are rotationally connected through a second rotating shaft (16), and the top and the bottom of the first sealing ring (5) are rotationally connected through a third rotating shaft (17).

3. The turbine shaft end seal structure of a turbocharger according to claim 1, characterized in that: the sealing rings (15) are four, and the sealing rings (15) are all in a semi-arc shape.

4. The turbine shaft end seal structure of a turbocharger according to claim 1, characterized in that: the top and the bottom of the second sealing element (4) are detachably connected through a second magnet (18), and the top and the bottom of the first sealing ring (5) are detachably connected through a third magnet (19).

5. The turbine shaft end seal structure of a turbocharger according to claim 1, characterized in that: the two second sealing rings (9) and the two third sealing rings (10) are arranged, the two second sealing rings (9) are rotatably connected with the first sealing element (3), and the two third sealing rings (10) are rotatably connected with the turbine shaft main body (1).

6. The turbine shaft end seal structure of a turbocharger according to claim 1, characterized in that: the top and the bottom of the first sealing element (3) are rotatably connected through a first rotating shaft (13), and the top and the bottom of the first sealing element (3) are detachably connected through a first magnet (14).

7. The turbine shaft end seal structure of a turbocharger according to claim 1, characterized in that: the number of the second oil return cavities (11) is two, and the two second oil return cavities (11) are distributed in a mirror image mode along the central line of the transverse shaft of the turbine shaft main body (1).