CN210483875U

CN210483875U - Oil leakage prevention device of turbocharger

Info

Publication number: CN210483875U
Application number: CN201921032668.9U
Authority: CN
Inventors: 曹玉峰; 鲍晶
Original assignee: Nantong City Jiacheng Machinery Co ltd
Current assignee: Nantong City Jiacheng Machinery Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-05-08
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses a turbo charger's leak protection oil device, including casing, inner chamber, rotor shaft, inner seal circle and impeller, the inner chamber has been seted up to the inside of casing, the internally mounted of casing has the rotor shaft that runs through the casing, the impeller is all installed and used at the both ends of rotor shaft, the inboard of impeller is located inner chamber internally mounted and has the inner seal circle, the outer seal circle is installed to the outside terminal surface of impeller, the inside of impeller is located has seted up between outer seal circle and the inner chamber and has drawn the oil groove, draw the oil groove to be located one side of inner chamber and install oil removal rubber. The utility model discloses in, at first, carry out the antiseep of twice defence line to machine oil through inner seal circle and external seal circle, when the line of defence of machine oil breakthrough inner seal circle after, through the inner chamber of introducing oil groove reentrant, the leak protection oil is effectual, secondly, through the flow of rotating vane's rotation air with higher speed, plays the effect of cooling, and the cooling is effectual.

Description

Oil leakage prevention device of turbocharger

Technical Field

The utility model relates to a turbo charger technical field especially relates to a turbo charger's leak protection oil device.

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, and the output power of the engine can be increased by correspondingly increasing the fuel quantity and adjusting the rotating speed of the engine.

However, the existing oil leakage prevention device of the turbocharger still has the defects that: firstly, current turbo charger leak protection oil device sets up a set of shaft seal packing at the outer terminal surface of the rotor shaft of inner chamber mostly, and the oil leak phenomenon will appear in turbo charger behind the ageing or damage of shaft seal cover, and turbo charger leakproofness is poor, and secondly, the rotation of rotor shaft will produce a large amount of heats, and the inside heat dissipation mechanism that does not set up mostly of current turbo charger, and the radiating effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems of poor sealing effect and poor heat dissipation effect, the oil leakage prevention device of the turbocharger is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a turbo charger's leak protection oil device, includes casing, inner chamber, rotor shaft, inner seal circle and impeller, the inner chamber has been seted up to the inside of casing, the internally mounted of casing has the rotor shaft that runs through the casing, the impeller is all installed with at the both ends of rotor shaft, the inboard of impeller is located inner chamber internally mounted and has the inner seal circle, the outer seal circle is installed to the outside terminal surface of impeller, the inside of impeller is located and has seted up between outer seal circle and the inner chamber and draw the oil groove, draw the oil groove to be located one side of inner chamber and install oil removal rubber.

As a further description of the above technical solution:

the outer terminal surface of rotor shaft all installs the filter screen near one side of impeller, install the oil baffle between filter screen and the impeller.

As a further description of the above technical solution:

and a plurality of groups of rotating fan blades are arranged inside the inner cavity of the outer end surface of the rotor shaft.

As a further description of the above technical solution:

the oil removal rubber comprises inner retainer plate, outer oil removal rubber and interior oil removal rubber, the outer wall of outer retainer plate and the upper wall fixed connection who draws the oil groove, and the outer wall of outer retainer plate and the upper wall that draws the oil groove closely laminate, the inner wall of inner retainer plate and the lower wall fixed connection who draws the oil groove, and the inner wall of inner retainer plate and the lower wall that draws the oil groove closely laminate.

As a further description of the above technical solution:

the outer end face of the inner fixing ring is fixedly connected with inner oil separation rubber between the outer fixing ring and the inner fixing ring, and the inner end face of the outer fixing ring is fixedly connected with outer oil separation rubber between the outer fixing ring and the inner fixing ring.

As a further description of the above technical solution:

the outer oil-separating rubber and the inner oil-separating rubber are both provided with elastic folds, and the inner side end face of the outer oil-separating rubber is tightly attached to the outer side end face of the inner oil-separating rubber.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. in the utility model, firstly, the impurities in the engine oil are filtered through the filter screen, the friction of the impurities at the position of the inner sealing ring is prevented, the damage to the inner sealing ring is caused, the service life of the inner sealing ring is reduced, the device is used as a first defense line for preventing oil leakage through the inner sealing ring, when the inner sealing ring is damaged, the oil outwards permeates along the axial direction of the rotor, the engine oil permeating to the outer sealing ring is blocked by the outer sealing ring, under the rotation of the impeller, the engine oil flows to the oil separation rubber through the oil guide groove under the action of centrifugal force, the engine oil has a force extruding towards the inner box to the inner oil separation rubber and the outer oil separation rubber under the action of the centrifugal force, so that the inner oil separation rubber and the outer oil separation rubber are elastically stretched towards the inner cavity, the engine oil flows to the inner cavity again through the stretched gap, and the engine oil of the engine oil guide flows back through the, the oil leakage prevention of the turbocharger is realized, and the oil leakage prevention effect is good.

2. The utility model discloses in, through the outer end-face mounting rotation fan blade at the rotor shaft, when the rotor shaft rotates in work, drive the rotation of rotating the fan blade, the flow of inside air accelerates, and the epaxial thermal giving off of rotor accelerates, the reduction of temperature has reduced the damage of the internal sealing washer of high temperature simultaneously, has indicateed turbocharger's heat dissipation from this, and the radiating effect is good.

Drawings

Fig. 1 is a schematic structural diagram of an oil leakage preventing device of a turbocharger according to the present invention;

FIG. 2 is a partially enlarged schematic view of the position A of the present invention;

fig. 3 is a schematic structural view of the oil-separating rubber of the present invention.

Illustration of the drawings:

1. a housing; 2. an inner cavity; 3. rotating the fan blade; 4. a rotor shaft; 5. an outer sealing ring; 6. an oil drainage groove; 7. an inner seal ring; 8. a filter screen; 9. oil-separating rubber; 901. an inner fixed ring; 902. an outer retainer ring; 903. an outer oil-barrier rubber; 904. inner oil separating rubber; 10. an impeller.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a turbo charger's leak protection oil device, which comprises a housing 1, inner chamber 2, rotor shaft 4, inner seal circle 7 and impeller 10, inner chamber 2 has been seted up to the inside of casing 1, the internally mounted of casing 1 has rotor shaft 4 that runs through casing 1, impeller 10 is all installed with at the both ends of rotor shaft 4, the inboard of impeller 10 is located 2 internally mounted of inner chamber has inner seal circle 7, outer seal circle 5 is installed to the outside terminal surface of impeller 10, it sets up through inner seal circle 7 and outer seal circle 5, prevent the machine oil seepage, impeller 10's inside is located and has seted up between outer seal circle 5 and the inner chamber 2 and draw oil groove 6, through drawing oil groove 6, flow back the machine oil that permeates out to inner chamber 2, draw oil groove 6 to be located one side of inner chamber 2 and install oil removal rubber 9, through the setting of oil removal rubber 9, prevent that the machine oil in.

Specifically, as shown in fig. 1, a filter screen 8 is installed on one side of the outer end surface of the rotor shaft 4 close to the impeller 10, the filter screen 8 prevents impurities from damaging the inner seal ring 7, and an oil baffle plate 11 is installed between the filter screen 8 and the impeller 10.

Specifically, as shown in fig. 1, a plurality of groups of rotating blades 3 are installed inside the inner cavity 2 on the outer end surface of the rotor shaft 4, and the arrangement of the rotating blades 3 accelerates the flow velocity of air in the inner cavity 2 to reduce the temperature.

Specifically, as shown in fig. 2 and fig. 3, the oil-separating rubber 9 is composed of an inner fixing ring 901, an outer fixing ring 902, an outer oil-separating rubber 903, and an inner oil-separating rubber 904, an outer wall of the outer fixing ring 902 is fixedly connected to an upper wall of the oil-leading groove 6, an outer wall of the outer fixing ring 902 is tightly attached to the upper wall of the oil-leading groove 6, an inner wall of the inner fixing ring 901 is fixedly connected to a lower wall of the oil-leading groove 6, an inner wall of the inner fixing ring 901 is tightly attached to the lower wall of the oil-leading groove 6, and the oil-separating rubber (9) is fixed by the inner fixing ring 901 and the outer fixing ring 902.

Specifically, as shown in fig. 2 and 3, an inner oil-separating rubber 904 is fixedly connected between an outer end surface of the inner fixing ring 901 and the outer fixing ring 902, and an inner oil-separating rubber 903 is fixedly connected between the inner fixing ring 901 and the outer fixing ring 902, and an inner end surface of the outer fixing ring 902 is blocked by the outer oil-separating rubber 904 and the inner oil-separating rubber 903.

Specifically, as shown in fig. 2 and 3, the outer oil-separating rubber 903 and the inner oil-separating rubber 904 are both provided with elastic wrinkles, and an inner end surface of the outer oil-separating rubber 903 is closely attached to an outer end surface of the inner oil-separating rubber 904, and the arrangement of the elastic wrinkles enables the outer oil-separating rubber 903 and the inner oil-separating rubber 904 to have extensibility, so that when oil is subjected to centrifugal force and flows in the inclined oil-leading groove 6, the outer oil-separating rubber 903 and the inner oil-separating rubber 904 are squeezed, and are extended outwards, so that a gap is reserved, and the oil can pass through the gap conveniently.

The working principle is as follows: when the engine oil leakage protection device is used, engine oil impurities are filtered through the filter screen 8, the inner sealing ring 7 protects the engine oil leakage in a first layer, when the inner sealing ring 7 is damaged, the engine oil leaks to the outer sealing ring 5, the outer sealing ring 5 protects the engine oil leakage in a second layer, the engine oil leaked to the outer sealing ring 5 flows along the oil guide groove 6 towards the inner cavity 2 under the action of centrifugal force generated by rotation of the impeller 10 and flows to the position of the oil separation rubber 9, the inner oil separation rubber 904 and the outer oil separation rubber 903 are impacted by the engine oil, so that the inner oil separation rubber 904 and the outer oil separation rubber 903 extend outwards, the engine oil flows into the inner cavity 2 from the extended gap, and meanwhile, when the rotor shaft 4 rotates, the rotation of the rotating fan blade 3 is driven, the fluid of air in the inner cavity 2 is accelerated, and the heat dissipation is accelerated.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a turbo charger's leak protection oil device, includes casing (1), inner chamber (2), rotor shaft (4), inner seal circle (7) and impeller (10), its characterized in that, inner chamber (2) have been seted up to the inside of casing (1), the internally mounted of casing (1) has rotor shaft (4) of running through casing (1), impeller (10) are all installed with at the both ends of rotor shaft (4), the inboard of impeller (10) is located inner chamber (2) internally mounted and has inner seal circle (7), outer seal circle (5) are installed to the outside terminal surface of impeller (10), the inside of impeller (10) is located and has seted up between outer seal circle (5) and inner chamber (2) and lead oil groove (6), it installs oil removal rubber (9) to lead one side that oil groove (6) are located inner chamber (2).

2. The oil leakage preventing device of the turbocharger according to claim 1, wherein a filter screen (8) is installed on one side of the outer end surface of the rotor shaft (4) close to the impeller (10), and an oil baffle plate (11) is installed between the filter screen (8) and the impeller (10).

3. The oil leakage preventing device of the turbocharger according to claim 1, wherein a plurality of groups of rotating blades (3) are mounted on the outer end surface of the rotor shaft (4) inside the inner cavity (2).

4. The oil leakage preventing device of the turbocharger according to claim 1, wherein the oil-separating rubber (9) is composed of an inner fixing ring (901), an outer fixing ring (902), an outer oil-separating rubber (903) and an inner oil-separating rubber (904), the outer wall of the outer fixing ring (902) is fixedly connected with the upper wall of the oil-leading groove (6), the outer wall of the outer fixing ring (902) is tightly attached to the upper wall of the oil-leading groove (6), the inner wall of the inner fixing ring (901) is fixedly connected with the lower wall of the oil-leading groove (6), and the inner wall of the inner fixing ring (901) is tightly attached to the lower wall of the oil-leading groove (6).

5. The oil leakage preventing device of the turbocharger according to claim 4, wherein an inner oil-separating rubber (904) is fixedly connected between the outer fixing ring (902) and the inner fixing ring (901) on the outer end face of the inner fixing ring (901), and an outer oil-separating rubber (903) is fixedly connected between the outer fixing ring (902) and the inner fixing ring (901) on the inner end face of the outer fixing ring (902).

6. The oil leakage preventing device of the turbocharger according to claim 4, wherein the outer oil-separating rubber (903) and the inner oil-separating rubber (904) are provided with elastic wrinkles, and the inner end face of the outer oil-separating rubber (903) is tightly attached to the outer end face of the inner oil-separating rubber (904).