CN218780637U - Turbocharger floating bearing - Google Patents

Abstract

The utility model discloses a turbocharger floating bearing, including the floating bearing main part, the both sides that the surface of floating bearing main part is close to the middle part all are equipped with the slope outer wall, the contained angle is the acute angle between the slope outer wall of both sides, and form narrow flat portion between two slope outer walls, the oilhole has been seted up to the circumference surface of narrow flat portion is even, the diameter of oilhole equals with the width of narrow flat portion, the outside both ends of circumference of floating bearing main part have all been seted up along the circumference direction and have been enclosed, the inside of enclosing is equipped with the rotation and installs the retainer plate, install oil blocking mechanism between the lower part of two retainer plates, the utility model discloses well lubricating oil can flow downwards along the slope outer wall of top, directly reachs the inside of oilhole, can not stop in all the positions, guarantees quick oil feed for the car is quick oil feed lubrication when just starting, has set up oil blocking mechanism in narrow flat portion below, oil blocking mechanism can block up the oilhole that is located narrow flat portion lower part, avoids lubricating oil to run off downwards because of dead weight.

Description

Turbocharger floating bearing

Technical Field

The utility model relates to a floating bearing technical field specifically is a turbocharger floating bearing.

Background

The floating bearing is mainly used for a bearing which has high rotating speed, only transmits torque and does not bear any counter force or bending moment, and lubricating oil is filled in a gap between the floating bearing and a rotor shaft in a pressurizing mode, so that the floating bearing rotates along with the rotor shaft in the same direction in an oil film, and the rotating speed of a floating rotating shaft is higher than that of the rotor shaft, so that the existing floating bearing is commonly used in a turbocharger of an automobile;

the conventional floating bearing is a straight cylindrical barrel, an oil inlet through hole is formed in the side face of the cylindrical barrel, lubricating oil in the floating bearing can be lost due to gravity after the automobile is flamed out for a long time, the automobile is started, the lubricating oil cannot be supplemented for the first time, and friction between the floating bearing and a rotor shaft is easily caused, so that the floating bearing and the rotor shaft are damaged, the service life of the floating bearing and the rotor shaft is shortened, and the use of a supercharger is influenced;

for this reason, patent application No. 202121533336.6 proposes a supercharger floating bearing structure, which includes two large inclined outer sides 100, a middle flat outer side wall 300 and an oil inlet hole 200 formed on the middle flat outer side wall 300, wherein when the lubricating oil flows down along the inclined outer sides 100, the lubricating oil needs to slowly flow through the two sides of the oil inlet hole 200 and then reach the inside of the oil inlet hole 200, when the vehicle is just started, the oil is slowly fed to affect the lubrication, and after the vehicle body stops, the lubricating oil flows down along the oil inlet hole 200 below due to its own weight, which results in the loss of the lubricating oil from the inside of the floating bearing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a turbocharger floating bearing to when solving among the prior art vehicle and just starting, the oil feed is slow, influences the lubrication, and after the vehicle body stops, lubricating oil because the dead weight can be along the 2 downstream of inlet port of below, leads to lubricating oil from the inside problem that runs off of floating bearing.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a turbo charger floating bearing, includes the floating bearing main part, the surface of floating bearing main part all is equipped with the slope outer wall near the both sides at middle part, both sides the contained angle is the acute angle between the slope outer wall, and forms narrow flat portion between two slope outer walls, the circumference surface of narrow flat portion is even has seted up the oilhole, the diameter of oilhole equals with the width of narrow flat portion.

Preferably, the groove ring has been seted up along circumferential direction at the outside both ends of circumference of floating bearing main part, and the inside of groove ring is equipped with to rotate installs the retainer plate, two install the oil blocking mechanism between the lower part of retainer plate.

Preferably, the fixed ring is rotatably connected with the groove ring through a bearing.

Preferably, oil blocking mechanism includes the crossbearer of rigid coupling between two retainer plates, sets up the arc oil blocking piece in narrow flat portion the latter half and connects the link of arc oil blocking piece and crossbearer.

Preferably, the arc-shaped oil plugging sheet is a half arc.

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

1. the two sides of the outer surface of the middle floating bearing main body, which are close to the middle part, are both arranged as inclined outer walls, a narrow flat part is formed between the two inclined outer walls, oil holes are uniformly formed in the circumferential outer surface of the narrow flat part, and the diameter of each oil hole is equal to the width of the narrow flat part, so that lubricating oil can flow downwards along the upper inclined outer wall and directly reaches the inside of each oil hole, and can not stop at other positions, and quick oil feeding is ensured, so that the vehicle can be quickly fed with oil for lubrication when just started;

2. the utility model discloses in set up stifled oily mechanism in narrow flat portion below, the oilhole that is located narrow flat portion lower part can be plugged up to stifled oily mechanism, avoids the vehicle to stop back lubricating oil because the dead weight and loss downwards, guarantees that better being intercepted of lubricating oil is inside the floating bearing main part, guarantees lubricated effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the floating bearing body of the present invention;

fig. 3 is a schematic structural view of the fixing ring of the present invention;

fig. 4 is a schematic structural view of the oil blocking mechanism of the present invention;

fig. 5 is a cross-sectional view of the oil blocking mechanism of the present invention.

In the figure: 1. a floating bearing body; 11. an inclined outer wall; 12. a narrow flat portion; 13. an oil hole; 14. a groove ring; 2. a fixed ring; 3. an oil blocking mechanism; 31. an arc oil plugging sheet; 32. a cross frame; 33. a connecting frame; 4. a bearing; 100. a beveled outer side; 200. an oil inlet hole; 300. a middle flat outer side wall.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

Please refer to fig. 1, fig. 2 and fig. 5, in an embodiment of the present invention, a turbocharger floating bearing includes a floating bearing body 1, both sides of the outer surface of the floating bearing body 1 near the middle portion are all provided with inclined outer walls 11, an included angle between the inclined outer walls 11 at both sides is an acute angle, lubricating oil can flow downwards along the inclined outer wall 11 above, a narrow flat portion 12 is formed between the two inclined outer walls 11, the circumferential outer surface of the narrow flat portion 12 is uniformly provided with oil holes 13, the diameter of the oil hole 13 is equal to the width of the narrow flat portion 12, i.e. all the lubricating oil can flow onto the narrow flat portion 12, because the width of the narrow flat portion 12 is the same as the diameter of the oil hole 13, all the lubricating oil can directly reach the inside of the oil hole 13, and cannot stay at other positions, so as to ensure quick oil feeding, so that the vehicle can be quickly fed with oil for lubrication when just started;

as shown in fig. 1, fig. 2 and fig. 3, two ends of the circumference of the floating bearing body 1 are both provided with a groove ring 14 along the circumferential direction, a fixed ring 2 is rotatably installed inside the groove ring 14, preferably, the fixed ring 2 is rotatably connected with the groove ring 14 through a bearing 4, and an oil blocking mechanism 3 is installed between the lower parts of the two fixed rings 2, that is, when the floating bearing body 1 rotates, the fixed ring 2 is in a fixed state, in order to ensure that the fixed ring 2 is stable and stationary, the fixed ring 2 can be positioned on the housing, the oil hole 3 at the lower part can be blocked by the oil blocking mechanism 3, so that the lubricating oil which runs off downwards due to gravity is reduced, and the lubricating oil is ensured to be left inside the floating bearing body 1;

referring to fig. 1 and 4, in this embodiment, preferably, the oil blocking mechanism 3 includes a cross frame 32 fixedly connected between the two fixing rings 2, an arc-shaped oil blocking piece 31 disposed at a lower half portion of the narrow flat portion 12, and a connecting frame 33 connecting the arc-shaped oil blocking piece 31 and the cross frame 32, that is, the cross frame 32 and the connecting frame 33 support the arc-shaped oil blocking piece 31 at a lower portion of the narrow flat portion 12, the arc-shaped oil blocking piece 31 can block the oil hole 3 located at the lower portion of the narrow flat portion 12, so as to prevent the lubricating oil from flowing downward due to its own weight, further, the arc-shaped oil blocking piece 31 is a half arc, and the arc-shaped oil blocking piece 31 of the half arc can ensure that the lubricating oil is better blocked inside the floating bearing body 1.

The utility model discloses a theory of operation is: when using this device, fix a position retainer plate 2 in the inside of shell, when the vehicle starts, floating bearing main part 1 rotates, lubricating oil can flow downwards along the slope outer wall 11 of top, directly reach the inside of oilhole 13 behind the position of reacing narrow flat portion 12, can not stop in all the other positions, guarantee quick oil feed, make the car just start the quick oil feed lubrication of time, meanwhile, retainer plate 2 is in the immobilized state, the oilhole 3 that is located narrow flat portion 12 lower part just can be plugged up to arc oil shutoff piece 31, avoid lubricating oil because the dead weight and the downward loss, guarantee that better the quilt of lubricating oil is intercepted inside floating bearing main part 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A turbocharger floating bearing, includes floating bearing main part (1), its characterized in that: the both sides that the surface of floating bearing main part (1) is close to the middle part all are equipped with slope outer wall (11), both sides the contained angle is the acute angle between slope outer wall (11), and forms narrow flat portion (12) between two slope outer walls (11), oilhole (13) have been seted up to the circumference surface of narrow flat portion (12) is even, the diameter of oilhole (13) equals with the width of narrow flat portion (12).

2. The turbocharger floating bearing according to claim 1, wherein: the outer both ends of circumference of floating bearing main part (1) have all been seted up groove ring (14) along circumferential direction, and the inside of groove ring (14) is equipped with to rotate installs retainer plate (2), two install oil blocking mechanism (3) between the lower part of retainer plate (2).

3. The turbocharger floating bearing according to claim 2, wherein: the fixed ring (2) is rotatably connected with the groove ring (14) through a bearing (4).

4. A turbocharger floating bearing according to claim 3, wherein: oil blocking mechanism (3) include crossbearer (32) of rigid coupling between two retainer plates (2), set up arc oil blocking piece (31) and link (33) of connecting arc oil blocking piece (31) and crossbearer (32) in narrow flat portion (12) the latter half.

5. The turbocharger floating bearing according to claim 4, wherein: the arc-shaped oil plugging sheet (31) is a half arc.

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