A turbocharger housing structure

Abstract

The utility model provides a kind of turbocharger shell structure, belong to turbocharger technical field;Including middle shell and turbine shaft, the turbine shaft is located middle shell inside, the side groove is set in the both sides of turbine shaft, the both sides of middle shell are fixedly connected with side seat, the inside of side seat is fixedly connected with rotating assembly, the turbine shaft slidingly connects in the inside of rotating assembly, and one side of the side seat away from middle shell is bolted with screw seat;The utility model is by being provided with rotating assembly, when using turbine shaft to drive inner swivel block rotation, outer ring will drive ball inside rotating groove to rotate, the rotation connection of turbine shaft is converted into the rolling connection of ball, reduce the wear of turbine shaft, and by oil pipe and flow-through hole, lubricating oil can be input into rotating groove, improve the fluency when ball rolls, further reduce friction, avoid turbine shaft to be subjected to excessive wear, improve the service life of structure.

Description

Technical Field

[0001] This utility model relates to the field of turbocharger technology, and in particular to a turbocharger housing structure. Background Technology

[0002] A turbocharger is a structure used to increase the intake pressure and power of an engine. It uses the energy of the exhaust gas from the engine to drive an air compressor, thereby increasing the amount of air entering the engine cylinders, thus improving the engine's combustion efficiency and output power. It includes a turbine and a compressor on both sides, as well as an intermediate housing between them. The intermediate housing connects the turbine and the compressor and limits the rotation of the turbine shaft, so that the two ends of the turbine shaft rotate and work inside the turbine and the compressor, respectively.

[0003] However, in most existing turbochargers, the turbine shaft is rotatably connected to the inside of the intermediate housing. When it rotates at high speed, the turbine shaft will have too much contact with the intermediate housing, which will easily cause wear and damage to the turbine shaft, reducing the service life of the structure. Utility Model Content

[0004] The purpose of this invention is to provide a turbocharger housing structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a turbocharger housing structure, comprising an intermediate housing and a turbine shaft, wherein the turbine shaft is located inside the intermediate housing, and side grooves are provided on both sides of the turbine shaft; side seats are fixedly connected to both sides of the intermediate housing, and a rotating assembly is fixedly connected to the inner side of the side seats; the turbine shaft is slidably connected to the inner side of the rotating assembly; a threaded seat is bolted to one side of the side seat away from the intermediate housing; and a side fastening assembly is slidably connected to the outer side of the turbine shaft near the threaded seat, which is located inside the threaded assembly.

[0006] In a preferred embodiment, the rotating assembly includes a rotating seat fixedly connected to the inner side of the side seat, an inner rotating block with an inner shape adapted to the side groove is rotatably connected to the inner side of the rotating seat, and an outer ring is fixedly connected to the outer side of the inner rotating block.

[0007] In a preferred embodiment, a plurality of limiting frames are fixedly connected to the inner side of the outer ring, and ball bearings are sleeved on the inner side of the limiting frames. The inner side of the inner rotating block has a plurality of grooves whose positions and shapes are adapted to the inner grooves of the limiting frames.

[0008] In a preferred embodiment, the inner side of the rotating seat is provided with a rotating groove adapted to the ball bearing, the outer side of the ball bearing abuts against the rotating groove, and the upper and lower ends of the rotating groove are provided with flow holes. The upper and lower ends of the two side seats are fixedly connected with oil pipes, and the end of the oil pipe located inside the side seat is fixedly connected to the corresponding flow hole.

[0009] In a preferred embodiment, the side-fixing assembly includes a side shaft wheel slidably connected to the outside of the turbine shaft. The side shaft wheel includes a sealing gasket fixedly connected to the side near the intermediate shell, which is in close contact with the side seat on the same side.

[0010] In a preferred embodiment, both ends of the inner side of the side shaft wheel are fixedly connected with a filling strip adapted to the side groove, which is located inside the corresponding side groove and extends out as a screw seat.

[0011] In a preferred embodiment, a side block is fixedly connected to the side of the turbine shaft away from the screw seat, and a fixing seat is fixedly connected to the outer side of the side seat near the side block. A sealing ring is fixedly connected to the inner side of the fixing seat and is sleeved on the outer side of the side block.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model, by setting a rotating component, utilizes the turbine shaft to drive the inner rotating block to rotate, and the outer ring will drive the balls to rotate inside the rotating groove, transforming the rotational connection of the turbine shaft into the rolling connection of the balls, reducing the wear of the turbine shaft. Furthermore, through the oil pipe and flow hole, lubricating oil can be introduced into the rotating groove to improve the smoothness of the balls rolling, further reducing friction, avoiding excessive wear on the turbine shaft, and extending the service life of the structure.

[0013] This utility model, by setting a side fixing component and a fixed seat, allows the side shaft wheel to be sleeved on the outside of the turbine shaft, and fills the side grooves on both sides of the turbine shaft with a filler strip. With the help of a sealing gasket, the sealing between the turbine shaft and the side seat is ensured. Combined with the tight contact between the inner sealing ring of the fixed seat and the side block, the airtightness of the mechanism is further improved. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a turbocharger housing structure; Figure 2 A partially cut-away three-dimensional structural diagram of a turbocharger housing structure; Figure 3 for Figure 2 A magnified three-dimensional structural diagram at point A; Figure 4 This is a schematic diagram of the disassembled three-dimensional structure of the rotating component.

[0015] In the diagram: 1. Intermediate shell; 2. Turbine shaft; 3. Side seat; 4. Fixed seat; 5. Threaded seat; 6. Rotary seat; 7. Inner rotating block; 8. Outer ring; 9. Limiting bracket; 10. Ball bearing; 11. Inner groove; 12. Rotating groove; 13. Flow hole; 14. Side block; 15. Side shaft wheel; 16. Sealing gasket; 17. Filler strip; 18. Oil pipe. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention; the conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.

[0018] Please see Figures 1-4 This utility model provides a turbocharger housing structure, including an intermediate housing 1 and a turbine shaft 2. The turbine shaft 2 is located inside the intermediate housing 1, and side grooves are formed on both sides of the turbine shaft 2. Side seats 3 are fixedly connected to both sides of the intermediate housing 1. A rotating assembly is fixedly connected to the inner side of the side seats 3. The rotating assembly includes a rotating seat 6 fixedly connected to the inner side of the side seats 3. An inner rotating block 7 with an inner shape adapted to the side groove is rotatably connected to the inner side of the rotating seat 6. An outer ring 8 is fixedly connected to the outer side of the inner rotating block 7. The inner side of the outer ring 8 is fixedly connected to... There are several limit frames 9, with ball bearings 10 sleeved inside the limit frames 9. The inner side of the inner rotating block 7 has several inner grooves 11 whose positions and shapes are adapted to the limit frames 9. The inner side of the rotating seat 6 has a rotating groove 12 adapted to the ball bearings 10. The outer side of the ball bearings 10 abuts against the rotating groove 12. The upper and lower ends of the rotating groove 12 are provided with flow holes 13. The upper and lower ends of the two side seats 3 are fixedly connected to oil pipes 18. One end of the oil pipe 18 located inside the side seat 3 is fixedly connected to the corresponding flow hole 13.

[0019] The structure is fixed inside the turbocharger. When the turbocharger starts, it drives the turbine shaft 2 to rotate, which drives the inner rotating blocks 7 on both sides to rotate through the side groove. The outer ring 8 drives the ball bearings 10 to rotate in the rotating groove 12. Lubricating oil is introduced through the oil pipe 18 above the existing external oil supply equipment box. It enters the rotating groove 12 through the flow hole 13 to lubricate the ball bearings 10, so that the turbine shaft 2 can rotate smoothly.

[0020] When the turbine shaft 2 drives the inner rotating block 7 to rotate, the outer ring 8 will rotate accordingly, causing the balls 10 to roll inside the rotating groove 12. This design cleverly transforms the rotational connection of the turbine shaft 2 into the rolling connection of the balls 10, thereby effectively reducing the wear of the turbine shaft 2 during high-speed rotation. At the same time, the lubricating oil is introduced into the rotating groove 12 through the oil pipe 18 and the flow hole 13, which can further improve the smoothness of the rolling of the balls 10, reduce friction, and prevent the turbine shaft 2 from being subjected to excessive wear due to long-term high-load operation. This significantly improves the service life and reliability of the entire structure. Furthermore, the outer ring 8 and the limiting bracket 9 ensure that the balls 10 on the outer side of the same inner rotating block 7 are a whole, improving the stability of the structure.

[0021] Please see Figures 1-4 The turbine shaft 2 is slidably connected to the inner side of the rotating assembly. One of the side seats 3 is bolted to a threaded seat 5 on the side away from the intermediate shell 1. The outer side of the turbine shaft 2 is slidably connected to a side fastening assembly, which is located inside the threaded assembly. The side fastening assembly includes a side shaft wheel 15 slidably connected to the outer side of the turbine shaft 2. The side shaft wheel 15 includes a sealing gasket 16 fixedly connected to the side near the intermediate shell 1, which is in close contact with the side seat 3 on the same side. Both ends of the inner side of the side shaft wheel 15 are fixedly connected to a filling strip 17 adapted to the side groove, which is located inside the corresponding side groove and extends out of the threaded seat 5. The side of the turbine shaft 2 away from the threaded seat 5 is fixedly connected to a side block 14. The outer side of the side seat 3 near the side block 14 is fixedly connected to a fixing seat 4. The inner side of the fixing seat 4 is fixedly connected to a sealing ring, which is sleeved on the outer side of the side block 14.

[0022] When the turbine shaft 2 rotates, the side block 14 rotates within the sealing ring, and at the same time, it drives the side shaft wheel 15 to rotate inside the screw seat 5 through the side groove and the filler strip 17. The sealing gasket 16 ensures a seal, so that the lubricating oil inside the structure will not leak.

[0023] The side shaft wheel 15 can be tightly fitted onto the outside of the turbine shaft 2, while the filler strip 17 can accurately fill the side grooves on both sides of the turbine shaft 2. Together with the sealing gasket 16, a tight sealing structure is formed between the turbine shaft 2 and the side seat 3. This design not only ensures the sealing between the turbine shaft 2 and the side seat 3, but also effectively prevents the leakage of lubricating oil. In addition, the tight contact between the sealing ring on the inner side of the fixed seat 4 and the side block 14 further enhances the airtightness of the entire mechanism. This double sealing mechanism not only improves the reliability of the system, but also extends the service life of the turbocharger, ensuring that it maintains efficient and stable performance during long-term high-load operation.

[0024] The working principle and usage process of this utility model are as follows: Since the housing structure is fixed inside the turbocharger (which is the prior art), when the turbocharger is started, it drives the turbine shaft 2 to rotate, which drives the inner rotating blocks 7 on both sides to rotate through the side groove, and drives the ball bearings 10 to rotate in the rotating groove 12 through the outer ring 8. Lubricating oil is introduced through the oil pipe 18 above the external oil supply equipment box, which enters the rotating groove 12 through the flow hole 13 to lubricate the ball bearings 10, so that the turbine shaft 2 rotates smoothly. When the turbine shaft 2 rotates, the side block 14 rotates in the sealing ring, and at the same time, the side shaft wheel 15 rotates inside the screw seat 5 through the side groove and the filler strip 17. The sealing gasket 16 ensures a seal, so that the lubricating oil inside the housing structure will not leak.

[0025] In the above scheme, it should be noted that: the fixing method between the housing structure and the turbocharger in this application adopts the existing disclosed technical means, and the turbocharger is also an existing disclosed product. At the same time, the turbocharger and the turbine shaft 2 are also fixedly connected by the existing disclosed technical means. The improvement and innovation of this application is the housing structure. Therefore, the connection method between the turbocharger and the housing structure and the turbine shaft 2 will not be described in detail here.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A turbocharger housing structure, comprising an intermediate housing (1) and a turbine shaft (2), characterized in that, The turbine shaft (2) is located inside the intermediate shell (1). Side grooves are provided on both sides of the turbine shaft (2). Side seats (3) are fixedly connected to both sides of the intermediate shell (1). A rotating assembly is fixedly connected to the inside of the side seat (3). The turbine shaft (2) is slidably connected to the inside of the rotating assembly. A threaded seat (5) is bolted to one side of the side seat (3) away from the intermediate shell (1). A side fastening assembly is slidably connected to the outside of the turbine shaft (2) near the threaded seat (5), which is located inside the threaded assembly.

2. The turbocharger housing structure according to claim 1, characterized in that, The rotating assembly includes a rotating seat (6) fixedly connected to the inner side of the side seat (3), an inner rotating block (7) with an inner shape adapted to the side groove is rotatably connected to the inner side of the rotating seat (6), and an outer ring (8) is fixedly connected to the outer side of the inner rotating block (7).

3. A turbocharger housing structure according to claim 2, characterized in that, The inner side of the outer ring (8) is fixedly connected to several limiting frames (9), and the inner side of the limiting frame (9) is fitted with ball bearings (10). The inner side of the inner rotating block (7) is provided with several inner grooves (11) whose positions and shapes are adapted to the limiting frame (9).

4. A turbocharger housing structure according to claim 3, characterized in that, The inner side of the rotating seat (6) is provided with a rotating groove (12) adapted to the ball (10). The outer side of the ball (10) is in contact with the rotating groove (12). The upper and lower ends of the rotating groove (12) are provided with flow holes (13). The upper and lower ends of the two side seats (3) are fixedly connected with oil pipes (18). One end of the oil pipe (18) located inside the side seat (3) is fixedly connected to the corresponding flow hole (13).

5. A turbocharger housing structure according to claim 1, characterized in that, The side fastening assembly includes a side shaft wheel (15) slidably connected to the outside of the turbine shaft (2). The side shaft wheel (15) includes a sealing gasket (16) fixedly connected to the side of the intermediate shell (1), which is in close contact with the side seat (3) on the same side.

6. A turbocharger housing structure according to claim 5, characterized in that, Both ends of the inner side of the side shaft wheel (15) are fixedly connected with a filling strip (17) adapted to the side groove, which is located inside the corresponding side groove and extends out as a screw seat (5).

7. A turbocharger housing structure according to claim 1, characterized in that, The turbine shaft (2) is fixedly connected to a side block (14) on the side away from the screw seat (5). A fixing seat (4) is fixedly connected to the outside of the side seat (3) near the side block (14). A sealing ring is fixedly connected to the inside of the fixing seat (4), which is sleeved on the outside of the side block (14).

Images