CN220395827U

CN220395827U - Intermediate and turbocharger

Info

Publication number: CN220395827U
Application number: CN202321932060.8U
Authority: CN
Inventors: 周康; 程帅宁
Original assignee: Fengcheng Dongning Power Co ltd
Current assignee: Fengcheng Dongning Power Co ltd
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2024-01-26
Anticipated expiration: 2033-07-21

Abstract

The utility model discloses an intermediate and a turbocharger, and belongs to the technical field of turbochargers. The utility model comprises an intermediate body, a turbine shaft and a pin, wherein the turbine shaft and the pin are arranged in the intermediate body. The intermediate body is provided with a first oil inlet and a first oil outlet. The outside cover of turbine axle is equipped with sleeve subassembly, be equipped with entry and export on the sleeve subassembly, can make lubricating oil business turn over, lubricate the turbine axle. The inside hollow passageway that is equipped with of pin, the one end of pin inserts in the entry, the other end of pin with first oil inlet intercommunication, the pin can restrict the sleeve subassembly is in the axial direction motion of turbine axle. According to the utility model, the pin is arranged, one end of the pin is inserted into the inlet, so that the movement of the sleeve assembly in the axial direction of the turbine shaft can be limited, and the traditional thrust bearing is replaced.

Description

Intermediate and turbocharger

Technical Field

The utility model belongs to the technical field of turbochargers, and particularly relates to an intermediate and a turbocharger.

Background

The turbocharger is formed by sequentially connecting three parts of a compressor, an intermediate body and a turbine box body. The turbine shaft is arranged in the middle body, the outer side of the turbine shaft is generally sleeved with a floating bearing, one side of the floating bearing is provided with a supporting sleeve, a thrust bearing is arranged in the circumferential direction of the supporting sleeve, and the thrust bearing and the supporting sleeve are matched to control the axial running amount of the floating bearing on the turbine shaft. However, when the turbine shaft rotates, the supporting sleeve and the thrust bearing are driven to contact and rub, so that higher heat is generated, the supporting sleeve and the thrust bearing are easy to damage, and the normal operation of the intermediate body is influenced.

Disclosure of Invention

In order to overcome the defects, the utility model provides an intermediate and a turbocharger, wherein the intermediate is free of a thrust bearing, and the normal operation of the intermediate is ensured.

The first aspect of the utility model provides an intermediate comprising an intermediate body, a turbine shaft and a pin, both the turbine shaft and the pin being disposed within the intermediate body;

the intermediate body is provided with a first oil inlet and a first oil outlet;

the outer side of the turbine shaft is sleeved with a sleeve assembly, and the sleeve assembly is provided with an inlet and an outlet which can enable lubricating oil to enter and exit so as to lubricate the turbine shaft;

the inside hollow passageway that is equipped with of pin, the one end of pin inserts in the entry, the other end of pin with first oil inlet intercommunication, the pin can restrict the sleeve subassembly is in the axial direction motion of turbine axle.

Further, the sleeve assembly is a floating bearing.

Further, a second oil inlet and a second oil outlet are formed in the floating bearing, the second oil inlet is the inlet, and the second oil outlet is the outlet.

Further, the sleeve assembly is a ball bearing.

Further, the ball bearing comprises an inner sleeve, the inner sleeve is sleeved on the outer side of the turbine shaft, an outer sleeve is sleeved on the outer side of the inner sleeve, a third oil inlet and a third oil outlet are formed in the outer sleeve, the third oil inlet is the inlet, and the third oil outlet is the outlet.

Further, a steel ball frame is arranged between the outer sleeve and the inner sleeve, and steel balls are arranged in the steel ball frame.

A second aspect of the utility model provides a turbocharger comprising an intermediate as claimed in any one of the preceding claims.

The beneficial effects are that:

according to the utility model, the pin is arranged, one end of the pin is inserted into the inlet, so that the movement of the sleeve assembly in the axial direction of the turbine shaft can be limited, the axial movement of the sleeve assembly is correspondingly controlled, and the traditional thrust bearing is replaced, so that the thrust bearing is not required to be arranged. The thrust bearing is removed, so that the normal work of the intermediate body is prevented from being influenced by friction damage of the thrust bearing and the supporting sleeve, and the working stability of the intermediate body is high. Through setting up the passageway in the pin, make lubricating oil can flow into the entry through the passageway from first oil inlet, effectively lubricate the turbine axle.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is a schematic longitudinal cross-section of an intermediate in one embodiment of the utility model;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic longitudinal cross-section of an intermediate in another embodiment of the utility model;

FIG. 4 is an enlarged view of a portion B of FIG. 3;

in the figure, 1, an intermediate body; 11. a first oil inlet; 12. a first oil outlet; 2. a pin; 21. a channel; 3, floating bearings; 31. a second oil outlet; 32. a second oil inlet; 4. a turbine shaft; 5. a ball bearing; 51. an outer sleeve; 511. a third oil outlet; 512. a third oil inlet; 52. an inner sleeve; 53. a steel ball frame; 54. and (5) steel balls.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the first aspect of the present utility model protects an intermediate body, which includes an intermediate body 1, a turbine shaft 4 and a pin 2, wherein the turbine shaft 4 and the pin 2 are disposed in the intermediate body 1.

The intermediate body 1 is provided with a first oil inlet 11 and a first oil outlet 12.

The outer side of the turbine shaft 4 is sleeved with a sleeve assembly, and an inlet and an outlet are formed in the sleeve assembly, so that lubricating oil can enter and exit, and the turbine shaft 4 is lubricated.

The pin 2 is internally provided with a hollow passage 21, one end of the pin 2 is inserted into the inlet, the other end of the pin 2 is communicated with the first oil inlet 11, and the pin 2 can limit the sleeve assembly to move in the axial direction of the turbine shaft 4.

According to the utility model, by arranging the pin 2, one end of the pin 2 is inserted into the inlet, the movement of the sleeve assembly in the axial direction of the turbine shaft 4 can be limited, the axial movement of the sleeve assembly is correspondingly controlled, and the traditional thrust bearing is replaced, so that the thrust bearing is not required to be arranged. The thrust bearing is removed, so that the normal work of the intermediate body is prevented from being influenced by friction damage of the thrust bearing and the supporting sleeve, and the working stability of the intermediate body is high. By providing a passage in the pin, lubrication oil can flow from the first oil inlet 11 through the passage 21 into the inlet, effectively lubricating the turbine shaft.

In addition, the advantages of eliminating the thrust bearing are as follows:

(1) Cost can be saved;

(2) Friction between the thrust bearing and the supporting sleeve can be reduced, and the heating speed of the intermediate body can be effectively reduced;

(3) The space of the cooling cavity is increased, so that the oil inlet amount is increased, the cooling speed of the intermediate is greatly improved, and the performance and the service life are improved;

(4) Simple structure improves the stability of midbody, maintains simply, maintains the cost low.

Referring to fig. 1-2, in one embodiment, the sleeve assembly is a floating bearing 3. The floating bearing 3 is provided with a second oil inlet 32 and a second oil outlet 31, the second oil inlet 32 is an inlet, and the second oil outlet 31 is an outlet.

Referring to fig. 3-4, in one embodiment, the sleeve assembly is a ball bearing 5. The ball bearing 5 comprises an inner sleeve 52, the inner sleeve 52 is sleeved on the outer side of the turbine shaft 4, an outer sleeve 51 is sleeved on the outer side of the inner sleeve 52, a third oil inlet 512 and a third oil outlet 511 are arranged on the outer sleeve 51, the third oil inlet 512 is an inlet, and the third oil outlet 511 is an outlet.

In one embodiment, a steel ball frame 53 is arranged between the outer sleeve 51 and the inner sleeve 52, and steel balls 54 are arranged in the steel ball frame 53.

A second aspect of the utility model provides a turbocharger comprising an intermediate of any one of the above.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. An intermediate body, characterized by comprising an intermediate body (1), a turbine shaft (4) and a pin (2), wherein the turbine shaft (4) and the pin (2) are both arranged in the intermediate body (1);

a first oil inlet (11) and a first oil outlet (12) are formed in the intermediate body (1);

the outside of the turbine shaft (4) is sleeved with a sleeve assembly, and the sleeve assembly is provided with an inlet and an outlet which can enable lubricating oil to enter and exit so as to lubricate the turbine shaft (4);

the inside hollow passageway (21) that is equipped with of pin (2), the one end of pin (2) inserts in the entry, the other end of pin (2) with first oil inlet (11) intercommunication, pin (2) can restrict the sleeve subassembly is in the axial direction motion of turbine axle (4).

2. Intermediate body according to claim 1, characterized in that the sleeve assembly is a floating bearing (3).

3. Intermediate body according to claim 2, characterized in that the floating bearing (3) is provided with a second oil inlet (32) and a second oil outlet (31), the second oil inlet (32) being the inlet and the second oil outlet (31) being the outlet.

4. Intermediate body according to claim 1, characterized in that the sleeve assembly is a ball bearing (5).

5. Intermediate body according to claim 4, characterized in that the ball bearing (5) comprises an inner sleeve (52), the inner sleeve (52) is sleeved outside the turbine shaft (4), an outer sleeve (51) is sleeved outside the inner sleeve (52), a third oil inlet (512) and a third oil outlet (511) are arranged on the outer sleeve (51), the third oil inlet (512) is the inlet, and the third oil outlet (511) is the outlet.

6. Intermediate as in claim 5, characterized in that a steel ball holder (53) is provided between the outer sleeve (51) and the inner sleeve (52), the steel balls (54) being provided in the steel ball holder (53).

7. A turbocharger comprising an intermediate according to any one of claims 1 to 6.