CN212563341U

CN212563341U - Turbine for turbocharger suitable for large-displacement automobile

Info

Publication number: CN212563341U
Application number: CN202021495849.8U
Authority: CN
Inventors: 洪梅
Original assignee: Hefei Leiguang Power Technology Co ltd
Current assignee: Hefei Leiguang Power Technology Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-02-19
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a turbine for turbocharger of big tolerance car of adaptation, including middle casing, be equipped with the turbine shaft in the middle casing, the left end of turbine shaft is rotated and is connected with ball bearing, and ball bearing's side has the turbine through an internal thread section of thick bamboo fixed mounting, and the fixed surface of an internal thread section of thick bamboo is connected with the seal assembly who is used for improving ball bearing and middle casing junction leakproofness. The utility model discloses an above-mentioned isotructure's cooperation, realized when wearing and tearing appear on ring seal's surface, when clearance appears in standing groove and ring seal, the swivel nut for the protruding axial extension of U-shaped of ring seal, with the clearance that the compensation appears, need not to dismantle and change the sealing ring, the life of sealing ring has been improved, make ring seal's bulge can hug closely all the time with the inner wall of standing groove, further sealed effect has been played to the both sides of middle casing, the condition from the both sides oil leak has been avoided appearing.

Description

Turbine for turbocharger suitable for large-displacement automobile

Technical Field

The utility model relates to a turbo charger technical field specifically is a turbine for turbo charger of big tolerance car of adaptation.

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 synchronously increased, the impeller compresses more air to enter the 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, the output power of the engine can be increased, and the exhaust gas quantity of the engine is increased.

In order to ensure the stable operation of the turboexpander, the turboexpander needs to be sealed frequently, the oil leakage of the supercharger can be caused by the failure of the sealing structure, the oil leakage phenomenon of the supercharger can occur, the consumption of engine oil is increased, and the power of an engine is reduced, so that the sealing ring is a core component of the sealing structure of the turboexpander.

Because the wearing and tearing can appear after long-time the use in current sealing ring, lead to the clearance increase of sealing ring and middle casing junction, reduced the leakproofness to middle casing, lead to the condition that the oil leak appears in middle casing easily, and in order to avoid leaking, the sealing ring needs regularly to change it after using a period, and the process is comparatively loaded down with trivial details complicated, and has improved use cost, consequently need improve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a turbine for turbocharger of big tolerance car of adaptation, it when wearing and tearing appear on ring packing's surface to possess, when clearance appears with ring packing, the swivel nut, make the protruding axial extension of ring packing's U-shaped, with the clearance that the compensation appears, need not to dismantle the change sealing ring, the life of sealing ring has been improved, make ring packing's bulge can hug closely the inner wall with the standing groove all the time, further sealed effect has been played to the both sides of middle casing, the condition from the both sides oil leak has been avoided appearing, the problem of proposing in the above-mentioned background art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a turbine for turbocharger of big tolerance car of adaptation, includes middle casing, be equipped with the turbine shaft in the middle casing, the left end of turbine shaft is rotated and is connected with ball bearing, and ball bearing's side has the turbine through an internal thread section of thick bamboo fixed mounting, and the fixed surface of an internal thread section of thick bamboo is connected with the seal assembly who is used for improving ball bearing and middle casing junction leakproofness, the right-hand member of turbine shaft rotates through the bearing seal and is connected with the screw rod, and the tip fixedly connected with impeller of screw rod, the surperficial also fixedly connected with of screw rod is used for improving the seal assembly of middle casing and screw rod junction leakproofness.

Preferably, seal assembly is including seting up the standing groove on the middle casing side, the solid fixed ring of the equal fixedly connected with in surface of an internal thread section of thick bamboo and screw rod, gu fixed ring's outside edge is fixed with annular seal, and the edge of one side of annular seal is fixed with the extension, annular seal's inside is equipped with the elastic component, the surface of an internal thread section of thick bamboo and screw rod is all overlapped and is equipped with the clamping ring, and the equal threaded connection in surface of an internal thread section of thick bamboo and screw rod has and is used for the fixed nut of clamping ring locking.

Preferably, the section of the annular sealing ring is U-shaped.

Preferably, the elastic member is a spring, and two ends of the spring are respectively and fixedly connected with the inner side of the annular sealing ring and the side surface of the extension part.

Preferably, the number of the springs is not less than eight, and the number of the springs is not less than eight and the springs are distributed in the annular sealing ring at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that: when wearing and tearing appear on the surface of ring type seal circle, when clearance appears in standing groove and ring type seal circle, the nut rotates, the nut removes and can drive clamping ring extrusion extension portion, make the protruding axial extension of U-shaped of ring type seal circle, with the clearance that the compensation appears, sealed once more has been realized to the standing groove, need not to dismantle the change sealing ring, the life of sealing ring has been improved, make the bulge of ring type seal circle hug closely the inner wall with the standing groove all the time, further sealed effect has been played to the both sides of middle casing, the condition from both sides oil leak has been avoided appearing.

Drawings

Fig. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of the present invention;

fig. 3 is an enlarged view of the structure of the present invention at B.

In the figure: 1. a middle housing; 2. a turbine shaft; 3. an internal threaded barrel; 4. a turbine; 5. a screw; 6. an impeller; 7. a fixing ring; 8. an annular seal ring; 9. an extension portion; 10. pressing a ring; 11. a nut; 12. a spring.

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.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a turbine for turbocharger of big discharge capacity car of adaptation, including middle casing 1, be equipped with turbine shaft 2 in the middle casing 1, the left end of turbine shaft 2 is rotated and is connected with ball bearing, and ball bearing's side has turbine 4 through 3 fixed mounting of internal thread section of thick bamboo, and the fixed surface of internal thread section of thick bamboo 3 is connected with the seal assembly who is used for improving ball bearing and middle casing 1 junction leakproofness, turbine shaft 2's right-hand member is connected with screw rod 5 through the sealed rotation of bearing, and screw rod 5's tip fixedly connected with impeller 6, the also fixedly connected with in surface of screw rod 5 is used for improving the seal assembly of middle casing 1 and screw rod 5 junction leakproofness, seal assembly is used for the contact department of casing 1 and turbine 4 and impeller 6 both sides in the middle of sealing, the leakproofness to middle casing 1 both sides has.

Further, the sealing assembly comprises a placing groove formed in the side face of the middle shell 1, fixing rings 7 are fixedly connected to the surfaces of the internal thread cylinder 3 and the screw rod 5, an annular sealing ring 8 is fixed to the outer edge of each fixing ring 7, an extending portion 9 is fixed to the edge of one side of each annular sealing ring 8, an elastic piece is arranged inside each annular sealing ring 8, pressing rings 10 are sleeved on the surfaces of the internal thread cylinder 3 and the screw rod 5, nuts 11 used for locking and fixing the pressing rings 10 are connected to the surfaces of the internal thread cylinder 3 and the screw rod 5 in a threaded mode, when the surfaces of the annular sealing rings 8 are worn, gaps are formed between the placing groove and the annular sealing rings 8, the nuts 11 are rotated, the pressing rings 10 are driven to extrude the extending portions 9 by the movement of the nuts 11, the U-shaped protrusions of the annular sealing rings 8 are axially expanded to compensate the gaps, resealing of the placing, the service life of the sealing ring is prolonged, the protruding part of the annular sealing ring 8 can be attached to the inner wall of the placing groove all the time, further sealing effect is achieved on the two sides of the middle shell 1, and the situation of oil leakage from the two sides is avoided.

Further, the section of the annular seal ring 8 is U-shaped.

Further, the elastic member is a spring 12, two ends of the spring 12 are respectively and fixedly connected with the inner side of the annular sealing ring 8 and the side surface of the extension part 9, and the extension part 9 can be always pressed against the side surface of the compression ring 10 through the arrangement of the spring 12.

Further, eight are no less than to the quantity of spring 12, and the equidistant distribution of eight spring 12 is no less than to the quantity in ring packing 8, through the setting of eight spring 12 is no less than to quantity for extension 9 atress is balanced even, and laminating that can be more stable is on the side of clamping ring 10.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a turbine for turbo charger of big discharge capacity car of adaptation, includes middle casing (1), be equipped with turbine shaft (2) in middle casing (1), its characterized in that: the left end of turbine shaft (2) is rotated and is connected with ball bearing, and ball bearing's side has turbine (4) through internal thread section of thick bamboo (3) fixed mounting, and the fixed surface of internal thread section of thick bamboo (3) is connected with the seal assembly who is used for improving ball bearing and middle casing (1) junction leakproofness, the right-hand member of turbine shaft (2) is connected with screw rod (5) through bearing seal rotation, and the tip fixedly connected with impeller (6) of screw rod (5), the surperficial also fixedly connected with of screw rod (5) is used for improving the seal assembly of middle casing (1) and screw rod (5) junction leakproofness.

2. The turbine for the turbocharger of the large-displacement automobile according to claim 1, wherein: the sealing assembly comprises a placing groove arranged on the side face of the middle shell (1), wherein the surface of an internal thread cylinder (3) and the surface of a screw rod (5) are fixedly connected with fixing rings (7), the outer edge of each fixing ring (7) is fixed with an annular sealing ring (8), the edge of one side of each annular sealing ring (8) is fixed with an extending part (9), the inside of each annular sealing ring (8) is provided with an elastic part, the surface of the internal thread cylinder (3) and the surface of the screw rod (5) are respectively provided with a pressing ring (10), and the surface of the internal thread cylinder (3) and the surface of the screw rod (5) are respectively provided with a nut (11) which is used for locking and fixing the pressing ring (.

3. The turbine for the turbocharger of the large-displacement automobile according to claim 2, wherein: the section of the annular sealing ring (8) is U-shaped.

4. The turbine for the turbocharger of the large-displacement automobile according to claim 2, wherein: the elastic part is a spring (12), and two ends of the spring (12) are fixedly connected with the inner side of the annular sealing ring (8) and the side face of the extension part (9) respectively.

5. The turbine for the turbocharger of the large-displacement automobile according to claim 4, wherein: eight are no less than to the quantity of spring (12), and the spring (12) that eight is no less than to the quantity distributes in annular seal (8) equidistant.