CN211692936U

CN211692936U - Floating bearing of turbocharger

Info

Publication number: CN211692936U
Application number: CN202020267729.6U
Authority: CN
Inventors: 唐海建; 邓垚
Original assignee: Changzhou Pingjiang Electrical Equipment Co ltd
Current assignee: Changzhou Pingjiang Electrical Equipment Co ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-10-16
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses a floating bearing of a turbocharger, which comprises an inner shaft; the utility model discloses an interior axle, outer axle and axle sleeve joint are constituteed, split type slip cup joint structure makes this floating bearing stability when the high-speed operation of rotor shaft in turbo charger higher, through first oil storage tank, the second oil storage tank, first oil inlet, the second oil inlet, the setting of third oil inlet and louvre, make this floating bearing more abundant with the contact of lubricating oil, take away the heat on this floating bearing when the lubricating oil of being convenient for flows, make this floating bearing radiating effect better, avoid engine deflagration, through the setting of filter screen in first oil inlet and the louvre, make the impurity in the lubricating oil that gets into bearing inside filtered, thereby avoid impurity to get into the inside floating bearing that leads to the floating bearing and receive structural damage, its life has been improved to a certain extent.

Description

Floating bearing of turbocharger

Technical Field

The utility model relates to a bearing technical field especially relates to a turbocharger's floating bearing.

Background

The turbocharger is actually an air compressor, the air intake is increased by compressing air, the turbine in a turbine chamber is pushed by the inertia impulse force of exhaust gas exhausted by an engine, the turbine drives a coaxial impeller, the impeller pumps the air sent by an air filter pipeline to pressurize the air to enter the cylinder, when the rotating speed of the engine is increased, the exhaust gas exhausting 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 to combust more fuel, the output power of the engine can be increased by correspondingly increasing the fuel quantity and adjusting the rotating speed of the engine, and the floating bearing is an important component part of the turbocharger;

current turbocharger floating bearing adopts the integral type structure mostly, lead to the bearing body to be driven by inside turbine rotor shaft very easily, make the inside constantly produce the friction of floating bearing, lead to stability relatively poor, and because the inside constantly produces the friction of floating bearing, can produce a large amount of heats, the air temperature who enters into the engine inside is also higher, and current floating bearing heat dissipation is relatively poor, lead to engine detonation very easily, current floating bearing does not filter lubricating oil in addition, probably because it contains particle impurity and leads to floating bearing to receive structural damage in the inside lubricating oil of entering floating bearing, therefore, the utility model provides a turbocharger's floating bearing is used for solving the problem that exists among the prior art.

SUMMERY OF THE UTILITY MODEL

To the above problem, an object of the utility model is to provide a turbocharger's floating bearing, this turbocharger's floating bearing cup joints through interior axle, outer axle and axle sleeve and forms, and split type structure makes it more stable when rotating, and setting up through multiunit oil inlet and louvre makes this bearing heat dissipation faster, and through the setting of filter screen in first oil inlet and the louvre, the impurity in the inside lubricating oil of messenger's entering bearing can be filtered.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme realizes: the utility model provides a turbocharger's floating bearing, includes interior axle, the outside cover of interior axle is equipped with outer axle, the intermediate position cover in the outer axle outside is equipped with the axle sleeve, first oil storage tank has been seted up on the axle sleeve, first oil storage tank distributes on the axle sleeve for rectangle structure and equidistance, first oil inlet has been seted up to outer axle intermediate position, the louvre has been seted up to outer bilateral symmetry of axle, be equipped with the filter screen in first oil inlet and the louvre respectively, the second oil inlet has been seted up to interior intermediate position of axle, second oil inlet and first oil inlet position symmetry and internal diameter are the same, the second oil storage tank has been seted up to the bilateral symmetry of second oil inlet, the third oil inlet has been seted up to the below of second oil storage tank, the internal diameter of third oil inlet is greater than the internal diameter.

The further improvement lies in that: a diversion trench is arranged in the inner shaft and spirally arranged on the inner side wall of the inner shaft.

The further improvement lies in that: the second oil inlets are at least provided with eight groups and are equidistantly distributed on the inner shaft, and the third oil inlets are at least provided with four groups and are equidistantly and symmetrically distributed on two sides of the second oil inlets.

The further improvement lies in that: first oil inlet is equipped with eight sets at least and equidistance distributes on outer epaxial, the louvre is regular hexagon structure and equidistance symmetric distribution in the both sides of outer axle.

The further improvement lies in that: first chutes are symmetrically formed in the two sides of the joint of the inner shaft and the outer shaft, and first sliding balls are uniformly arranged in the first chutes at equal intervals.

The further improvement lies in that: the both sides position symmetry of the junction of outer axle and axle sleeve has seted up the second spout, the equidistance evenly is provided with the smooth pearl of second in the second spout.

The utility model has the advantages that: the utility model discloses an interior axle, through interior axle, outer axle and axle sleeve cup joint and constitute, split type slip cup joint structure makes this floating bearing stability when the high-speed operation of rotor shaft in turbo charger higher, through first oil storage tank, the second oil storage tank, first oil inlet, the second oil inlet, the setting of third oil inlet and louvre, it is more abundant to make this floating bearing and the contact of lubricating oil, take away the heat on this floating bearing when the lubricating oil of being convenient for flows, make this floating bearing radiating effect better, avoid engine deflagration, through the setting of filter screen in first oil inlet and the louvre, make the impurity in the lubricating oil that gets into bearing inside filtered, thereby avoid impurity to get into the inside floating bearing that leads to receive the structural damage, its life has been improved to a certain extent.

Drawings

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

fig. 2 is a sectional view of the present invention.

Wherein: 1. an inner shaft; 2. an outer shaft; 3. a shaft sleeve; 4. a first oil reservoir; 5. a first oil inlet; 6. heat dissipation holes; 7. filtering with a screen; 8. a second oil inlet; 9. a second oil reservoir; 10. a third oil inlet; 11. a diversion trench; 12. a first chute; 13. a first sliding bead; 14. a second chute; 15. a second sliding ball.

Detailed Description

In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.

According to fig. 1 and 2, the embodiment provides a floating bearing of a turbocharger, which comprises an inner shaft 1, an outer shaft 2 is sleeved on the outer side of the inner shaft 1, a shaft sleeve 3 is sleeved on the middle position of the outer side of the outer shaft 2, a first oil storage tank 4 is arranged on the shaft sleeve 3, so that lubricating oil can be conveniently stored, more lubricating oil can enter the floating bearing, the first oil storage tank 4 is of a rectangular structure and is equidistantly distributed on the shaft sleeve 3, a first oil inlet 5 is arranged at the middle position of the outer shaft 2, so that the lubricating oil can enter the space between the inner shaft 1 and the outer shaft 2, heat dissipation holes 6 are symmetrically arranged on two sides of the outer shaft 2, so that the heat dissipation of the shaft body is accelerated, a filter screen 7 is respectively arranged in the first oil inlet 5 and the heat dissipation holes 6, so as to filter impurities in the lubricating oil, a, the second oil inlet 8 and the first oil inlet 5 are symmetrical in position and have the same inner diameter, a second oil storage tank 9 is symmetrically arranged on two sides of the second oil inlet 8, so that lubricating oil can be stored conveniently, more lubricating oil can enter the bearing, a third oil inlet 10 is arranged below the second oil storage tank 9, the lubricating oil can flow into the inner shaft 1 conveniently, and the inner diameter of the third oil inlet 10 is larger than that of the second oil inlet 8.

The inner shaft 1 is internally provided with a guide groove 11, and the guide groove 11 is spirally arranged on the inner side wall of the inner shaft 1, so that the lubricating oil is more uniformly distributed on the inner wall of the inner shaft 1, and the friction coefficient of the lubricating oil is reduced.

The second oil inlets 8 are at least provided with eight groups and are equidistantly distributed on the inner shaft 1, and the third oil inlets 10 are at least provided with four groups and are equidistantly and symmetrically distributed on two sides of the second oil inlets 8.

First oil inlet 5 is equipped with eight sets at least and equidistance distributes on outer axle 2, louvre 6 is regular hexagon structure and equidistance symmetric distribution in the both sides of outer axle 2.

First chutes 12 are symmetrically formed in two side positions of the joint of the inner shaft 1 and the outer shaft 2, and first sliding balls 13 are uniformly arranged in the first chutes 12 at equal intervals, so that the inner shaft 1 and the outer shaft 2 are more stable in rotation.

Second spout 14 has been seted up to the bilateral position symmetry of the junction of outer axle 2 and axle sleeve 3, the equidistance evenly is provided with second sliding ball 15 in the second spout 14, makes outer axle 2 and axle sleeve 3 more stable when rotating.

The floating bearing of the turbocharger comprises an inner shaft 1, which is formed by sleeving an inner shaft 1, an outer shaft 2 and a shaft sleeve 3, and a split sliding sleeving structure ensures that the floating bearing has higher stability when a rotor shaft in the turbocharger runs at high speed, through the arrangement of the first oil storage tank 4, the second oil storage tank 9, the first oil inlet 5, the second oil inlet 8, the third oil inlet 10 and the heat dissipation holes 6, the floating bearing is more fully contacted with lubricating oil, the heat on the floating bearing is taken away when the lubricating oil flows, the heat dissipation effect of the floating bearing is better, the detonation of an engine is avoided, through the arrangement of the first oil inlet 5 and the filter screen 7 in the heat dissipation hole 6, impurities in the lubricating oil entering the bearing can be filtered, therefore, the floating bearing is prevented from being structurally damaged due to the fact that impurities enter the inside of the floating bearing, and the service life of the floating bearing is prolonged to a certain extent.

Claims

1. A turbocharger floating bearing comprising an inner shaft (1), characterized in that: the outer side sleeve of the inner shaft (1) is provided with an outer shaft (2), the middle position sleeve of the outer side of the outer shaft (2) is provided with a shaft sleeve (3), a first oil storage tank (4) is arranged on the shaft sleeve (3) in a rectangular structure and is equidistantly distributed on the shaft sleeve (3), a first oil inlet (5) is arranged at the middle position of the outer shaft (2), heat dissipation holes (6) are symmetrically arranged at two sides of the outer shaft (2), filter screens (7) are respectively arranged in the first oil inlet (5) and the heat dissipation holes (6), a second oil inlet (8) is arranged at the middle position of the inner shaft (1), the second oil inlet (8) and the first oil inlet (5) are symmetrically arranged and have the same inner diameter, a second oil storage tank (9) is symmetrically arranged at two sides of the second oil inlet (8), a third oil inlet (10) is arranged below the second oil storage tank (9), the inner diameter of the third oil inlet (10) is larger than that of the second oil inlet (8).

2. The turbocharger floating bearing according to claim 1, wherein: a flow guide groove (11) is arranged in the inner shaft (1), and the flow guide groove (11) is spirally arranged on the inner side wall of the inner shaft (1).

3. The turbocharger floating bearing according to claim 1, wherein: the second oil inlets (8) are at least provided with eight groups and are equidistantly distributed on the inner shaft (1), and the third oil inlets (10) are at least provided with four groups and are equidistantly and symmetrically distributed on two sides of the second oil inlets (8).

4. The turbocharger floating bearing according to claim 1, wherein: first oil inlet (5) are equipped with eight sets at least and equidistance distributes on outer axle (2), louvre (6) are regular hexagon structure and equidistance symmetric distribution in the both sides of outer axle (2).

5. The turbocharger floating bearing according to claim 1, wherein: first chutes (12) are symmetrically formed in the two sides of the joint of the inner shaft (1) and the outer shaft (2), and first sliding balls (13) are uniformly arranged in the first chutes (12) at equal intervals.

6. The turbocharger floating bearing according to claim 1, wherein: second spout (14) have been seted up to the bilateral position symmetry of the junction of outer axle (2) and axle sleeve (3), equidistance evenly is provided with second sliding ball (15) in second spout (14).