CN216741723U

CN216741723U - Compact oil guide structure in core body

Info

Publication number: CN216741723U
Application number: CN202220578197.7U
Authority: CN
Inventors: 吴贺松; 吴张武
Original assignee: Chengdu Xiling New Kinetic Energy Technology Co ltd
Current assignee: Chengdu Xiling New Kinetic Energy Technology Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-06-14
Anticipated expiration: 2032-03-16

Abstract

The utility model discloses a compact oil guide structure in a core body.A middle body is provided with an oil throwing ring groove which is communicated with an oil return opening, the outer side surface of a thrust sleeve is provided with a first convex ring, the first side wall of the oil throwing ring groove on the middle body is inwards provided with a second convex ring, and the outer wall of the first convex ring is in clearance fit with the inner wall of the second convex ring; the outer wall of the integrated bearing is connected with the intermediate body, and one end face of the integrated bearing is used for plugging the second side wall of the oil throwing ring groove; the oil throwing ring groove is arranged, and lubricating oil splashed from the integrated bearing is isolated on the right side of the pressure end sealing ring through the matching of the oil throwing ring groove and the thrust sleeve; the integral structure of the core body becomes compact, the axial distance between the vortex end and the pressure end is shortened, and the stability of a rotor system is improved; in addition, the structure is simple to assemble, the manufacturing and assembling steps of the assembling tool are reduced, and the assembling cost is reduced.

Description

Compact oil guide structure in core body

Technical Field

The utility model relates to the technical field of turbochargers, in particular to a compact oil guide structure in a core body.

Background

The turbocharger is an important part of high-end automobile engines, and the main function of the turbocharger is to increase the air inlet density of the automobile engine, enable the fuel oil of the automobile engine to be more fully combusted and increase the driving force of the engine. The main components of a conventional turbocharger include: the scroll casing, the pressure casing and the core body. The core body has the function of connecting the turbine and the compressor and provides rotary support for the turbine and the compressor. Since the turbocharger has a very high operating speed, generally from one hundred thousand to twenty thousand revolutions, the core body as the rotating rotor has a high requirement on lubrication, and the lubrication system is required to have stable sealing performance under the high-speed operating condition. In order to ensure a stable sealing performance of the lubrication system, an oil guide plate is generally disposed at the compressor end of the core body to guide the high-speed lubrication oil splashed from the bearing fitting surface into a stable lubrication circuit.

As shown in fig. 1, in the conventional structure, an oil guide plate 03 is pressed on a thrust bearing 02 by a sealing plate 04, the oil guide plate 03 is in clearance fit with a thrust sleeve 05, and during operation, lubricating oil splashed from the thrust bearing 02 is blocked by the oil guide plate 03 and flows towards an oil return opening, so that the high-speed lubricating oil is prevented from leaking out through the thrust sleeve 05.

As shown in fig. 2, the oil guide plate 03 has a complex structure, generally a stamping part, and a die needs to be manufactured, and the structure is complex in assembly, so that the part cost and the assembly cost of the structure are high at present.

Therefore, it is necessary to develop a compact oil guiding structure in the core body to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and designs a compact oil guide structure in a core body.

The utility model realizes the purpose through the following technical scheme:

a compact oil guide structure in a core body comprises an intermediate body, an integrated bearing, a thrust sleeve and a shaft, wherein the integrated bearing is placed in an inner hole of the intermediate body, the thrust sleeve is sleeved on the shaft, one end face of the integrated bearing is in clearance fit with one end face of the thrust sleeve, an oil throwing ring groove is formed in the intermediate body and is communicated with an oil return opening, a first convex ring is arranged on the outer side face of the thrust sleeve, a second convex ring is inwards arranged on a first side wall of the oil throwing ring groove in the intermediate body, and the outer wall of the first convex ring is in clearance fit with the inner wall of the second convex ring; the outer wall of the integrated bearing is in clearance fit with the intermediate body, and one end face of the integrated bearing is used for plugging the second side wall of the oil throwing ring groove.

Specifically, the core body further includes an annular seal plate mounted between the intermediate body and the thrust sleeve.

Further, sealing rings are arranged between the inner end face of the sealing plate and the thrust sleeve and between the outer end face of the sealing plate and the intermediate body.

Preferably, the oil slinger groove is formed in a waist-shaped groove structure.

As another preference, the oil slinger groove is formed in an eccentric circular configuration.

The utility model has the beneficial effects that:

according to the oil-throwing ring groove structure, the oil-throwing ring groove is directly machined on the intermediate body, and lubricating oil splashed from the integrated bearing is isolated on the right side of the pressure end sealing ring through the matching of the oil-throwing ring groove and the thrust sleeve; the integral structure of the core body becomes compact, the axial distance between the vortex end and the pressure end is shortened, and the stability of a rotor system is improved; in addition, the structure is simple to assemble, the manufacturing and assembling steps of the assembling tool are reduced, and the assembling cost is reduced.

Drawings

FIG. 1 is a schematic view of a prior art core body;

FIG. 2 is a schematic diagram of a prior art oil deflector;

FIG. 3 is a schematic structural view of a core body of the present application;

FIG. 4 is a cross-sectional view of an intermediate body of the present application without a component mounted thereon;

FIG. 5 is a left side view of the central body of the present application without the components installed;

FIG. 6 is a schematic view of a first construction of an oil slinger ring groove of the present application;

fig. 7 is a second schematic construction of an oil slinger groove in the present application.

In the figure: 01. an intermediate; 11. an oil throwing ring groove; 02. an integral bearing; 03. an oil guide plate; 04. a sealing plate; 05. a thrust sleeve; 06. and (4) a sealing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is also to be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The following detailed description of embodiments of the utility model refers to the accompanying drawings.

As shown in fig. 3-5, a compact oil guiding structure in a core body includes a middle body 01, an integrated bearing 02, an annular sealing plate 04, a thrust sleeve 05, and a shaft, where the integrated bearing 02 is placed in an inner hole of the middle body 01, the thrust sleeve 05 is sleeved on the shaft, the sealing plate 04 is installed between the middle body 01 and the thrust sleeve 05, one end surface of the integrated bearing 02 is in clearance fit with one end surface of the thrust sleeve 05, an oil slinger groove 11 is formed in the middle body 01, the oil slinger groove 11 is communicated with an oil return port, a first convex ring is arranged on an outer side surface of the thrust sleeve 05, a second convex ring is arranged inward on a first side wall of the oil slinger groove 11 on the middle body 01, and an outer wall of the first convex ring is in clearance fit with an inner wall of the second convex ring; the outer wall of the integrated bearing 02 is in clearance fit with the intermediate body 01, and one end face of the integrated bearing 02 is used for plugging the second side wall of the oil throwing ring groove 11.

As shown in fig. 3, seal rings 06 are provided between the inner end surface of the seal plate 04 and the thrust sleeve 05, and between the outer end surface of the seal plate 04 and the intermediate body 01.

Preferably, the oil slinger groove 11 is formed in a kidney-shaped groove structure as shown in fig. 6.

As another preference, as shown in fig. 7, the oil slinger groove 11 is formed in an eccentric circle structure. The two structures can be quickly machined by the milling cutter, and the machining is simple and quick.

The installation procedure of this application is as follows:

firstly, the integrated bearing 02 is arranged in an intermediate body 01 and fixed by a locking pin, then the thrust sleeve 05 provided with the sealing ring 06 is arranged in the intermediate body 01, then the sealing plate 04 is fixed in the intermediate body 01, then the turbine shaft sequentially penetrates through the integrated bearing 02 and the thrust sleeve 05, then the pressing impeller is arranged on the turbine shaft, and a shaft end nut is locked to finish the assembly of the core body.

Directly process out on midbody 01 and get rid of oil ring groove 11, through getting rid of oil ring groove 11, thrust sleeve 05, integral type bearing 02's cooperation, will keep apart on pressing end sealing ring 06 right side from the lubricating oil that integral type bearing 02 splashes out to carry out the oil return through the oil return opening, this structure is compared prior art and has been saved and lead the oiled-plate 03 structure.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A compact oil guide structure in a core body comprises an intermediate body, an integrated bearing, a thrust sleeve and a shaft, wherein the integrated bearing is placed in an inner hole of the intermediate body, the thrust sleeve is sleeved on the shaft, and one end face of the integrated bearing is in clearance fit with one end face of the thrust sleeve; the outer wall of the integrated bearing is in clearance fit with the intermediate body, and one end face of the integrated bearing is used for plugging the second side wall of the oil throwing ring groove.

2. The compact oil guiding structure in the core body as claimed in claim 1, wherein the core body further comprises an annular sealing plate, and the sealing plate is installed between the intermediate body and the thrust sleeve.

3. The compact oil guide structure in the core body as claimed in claim 2, wherein sealing rings are provided between the inner end surface of the sealing plate and the thrust sleeve, and between the outer end surface of the sealing plate and the intermediate body.

4. The compact oil guide structure in the core body according to any one of claims 1 to 3, wherein the oil slinger groove is formed in a waist-shaped groove structure.

5. A compact oil guiding structure in a core body according to any one of claims 1 to 3, wherein the oil slinger groove is formed in an eccentric circle structure.