Intermediate with lubricating structure

Abstract

The utility model discloses a middle body with a lubricating structure. The middle body comprises a shell forming a middle body main body and the lubricating structure installed on the shell. A lubricating oil cavity is formed in the middle of the middle body, turbine shaft cavities are formed in the two sides of the lubricating oil cavity, floating bearing installation grooves are formed in the outer sides of the turbine shaft cavities, an oil outlet is formed in the bottom of the shell, and lubricating oil overflowing from the two sides of the turbine shaft cavities converges to the oil outlet from an inner cavity of the shell and flows out. Branch pipes communicated with the upper surface of the shell are arranged at the upper parts of the lubricating oil cavity and the two turbine shaft cavities; the lower portion of the lubricating structure is provided with holes corresponding to the branch pipes, the upper portion of the lubricating structure is provided with an oil inlet, and the oil inlet is communicated with the three holes in the bottom of the lubricating structure. The device is more convenient to disassemble, wash, dredge, replace and maintain.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, and in particular to an intermediate with a lubrication structure. Background Technology

[0002] The turbine intermediate uses gas to drive the turbine to do work. The turbine drives the air compressor to rotate at high speed, thereby increasing the density of the incoming gas and thus increasing the engine power.

[0003] In existing turbine intermediate bodies, oil is injected into the intermediate body through an oil port set on the body and an oil pipeline. However, due to the complex structure, the position of the oil pipeline 3 needs to be precisely set during the manufacturing process, which makes the manufacturing process very complicated.

[0004] Patent No. CN201220750143.0 proposes an intermediate body and a turbocharger. By converting the oil port of the intermediate body in the prior art into a method of connecting the oil inlet to the lubricating oil chamber through an oil pipeline, the oil inlet of this utility model is directly connected to the lubricating oil chamber. Compared with the prior art, the oil pipeline is reduced, which makes it easier to determine the position of the oil inlet and the lubricating oil during the manufacturing process. Therefore, the manufacturing difficulty is reduced, and the manufacturing time of the intermediate body is shortened.

[0005] However, it only has one oil supply line from the oil inlet to the inner cavity of the rotating shaft. The lubricating oil must overflow from the lubricating oil chamber to flow into the first turbine shaft cavity and the second turbine shaft cavity. If it is blocked, it is not easy to clean because it is designed as an integral part of the housing. Utility Model Content

[0006] To facilitate the direct flow of lubricating oil to the lubricating oil cavity and the turbine shaft cavities on both sides, and to enable easy disassembly and cleaning, this utility model designs an intermediate body with a lubrication structure. The structure includes: a shell constituting the main body of the intermediate body and a lubrication structure mounted on the shell; a lubricating oil cavity is formed in the center of the intermediate body, and turbine shaft cavities are located on both sides of the lubricating oil cavity. A floating bearing mounting groove is provided on the outer side of each turbine shaft cavity, and an oil outlet is provided at the bottom of the shell. Lubricating oil overflowing from both sides of the turbine shaft cavities flows through the inner cavity of the shell to the oil outlet; branch pipes connecting to the upper surface of the shell are provided at the upper part of both the lubricating oil cavity and the two turbine shaft cavities; the lower part of the lubrication structure has holes corresponding to the branch pipes, and the upper part has an oil inlet, which is connected to three holes at the bottom of the lubrication structure.

[0007] Preferably, the lubrication structure includes: a valve body; a tapered hole is provided on the upper part of the valve body, and diversion holes leading to the lower surface of the valve body are provided on the bottom and both sides of the tapered hole; an oil inlet is provided on the valve body above the tapered hole; and a mounting hole is provided on the valve body for fixing to the housing of the intermediate body.

[0008] Preferably, the mounting holes are located at the four corners of the valve body and are vertically continuous.

[0009] Preferably, the depth of the tapered orifice is 1 / 2 of the valve body height.

[0010] Preferably, the diversion holes located on both sides of the conical hole include an upper inclined tube and a lower straight tube, the diversion hole located at the bottom of the conical hole is a straight tube, and the branch pipe is also a straight tube.

[0011] Preferably, the angle between the inclined tube and the straight tube is 135°.

[0012] Preferably, the oil inlet protrudes from or is embedded in the upper surface of the valve body.

[0013] Preferably, the three diversion orifices have the same diameter.

[0014] This utility model designs the integrated turbocharger intermediate body housing as a split type. By pre-diverting the lubricating oil in the lubrication structure, and then through the straight pipe of the diversion pipe, it is respectively connected to the lubricating oil chamber and the turbine shaft chambers on both sides through three branch pipes, so that the lubricating oil temperature in contact with the shafts at the three locations is consistent. Moreover, due to the split design, it is more convenient to disassemble, clean, replace and maintain. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the lubrication structure.

[0017] Figure 3 This is a front view of the lubrication structure.

[0018] Figure 4 This is a top view of the lubrication structure.

[0019] Figure 5 This is a side view of the lubrication structure.

[0020] In the figure: 1. Lubrication structure; 2. Housing; 11. Valve body; 12. Oil inlet; 13. Tapered hole; 14. Diverter hole; 15. Mounting hole; 21. Lubricating oil chamber; 22. Turbine shaft chamber; 23. Branch pipe; 24. Floating bearing mounting groove; 25. Oil outlet. Detailed Implementation Example 1

[0021] like Figures 1-5As shown, the intermediate body with a lubrication structure of this utility model includes: a shell 2 constituting the main body of the intermediate body and a lubrication structure 1 mounted on the shell 2; a lubricating oil cavity 21 is formed in the middle of the intermediate body, and turbine shaft cavities 22 are provided on both sides of the lubricating oil cavity 21. A floating bearing mounting groove 24 is provided on the outer side of the turbine shaft cavity 22, and an oil outlet 25 is provided at the bottom of the shell 2. The lubricating oil overflowing from both sides of the turbine shaft cavity 22 flows from the inner cavity of the shell 2 to the oil outlet 25 and flows out; the upper part of the lubricating oil cavity 21 and the two turbine shaft cavities 22 are provided with branch pipes 23 that connect to the upper surface of the shell 2; the lower part of the lubrication structure 1 is provided with a hole corresponding to the branch pipe 23, and the upper part is provided with an oil inlet 12, and the oil inlet 12 is connected to the three holes at the bottom of the lubrication structure.

[0022] More specifically, the lubrication structure includes: a valve body 11; a tapered hole 13 is provided on the upper part of the valve body 11, and diversion holes 14 leading to the lower surface of the valve body 11 are provided on the bottom and both sides of the tapered hole 13; an oil inlet 12 is provided above the tapered hole 13 on the valve body 11; and a mounting hole 15 is provided on the valve body 11 for fixing to the housing of the intermediate body.

[0023] More specifically, the mounting holes 15 are located at the four corners of the valve body 11 and are vertically continuous.

[0024] More specifically, the depth of the tapered hole 13 is half the height of the valve body 11.

[0025] More specifically, the diversion holes 14 located on both sides of the conical hole 13 include an upper inclined tube and a lower straight tube. The diversion hole 14 located at the bottom of the conical hole 13 is a straight tube, and the branch pipe 23 is also a straight tube.

[0026] More specifically, the angle between the inclined tube and the straight tube is 135°.

[0027] More specifically, the oil inlet 12 protrudes from the upper surface of the valve body 11 and is provided with an internal thread for connection to the oil circuit. Of course, an external thread or other connection structure can also be used depending on the connection pipeline. The design principle of the oil outlet 25 is the same.

[0028] More specifically, the three diversion holes 14 described herein have the same diameter.

[0029] In this example, the valve body 11 is cubic in shape. It is formed by casting or powder metallurgy of metal materials and then machined by drilling, tapping and other processes.

[0030] This utility model designs the integrated turbocharger intermediate body housing as a split type. By pre-diverting the lubricating oil in the lubrication structure, and then through the straight pipe of the diversion pipe, it is respectively connected to the lubricating oil chamber and the turbine shaft chambers on both sides through three branch pipes, so that the lubricating oil temperature in contact with the shafts at the three locations is consistent. Moreover, due to the split design, it is more convenient to disassemble, clean, replace and maintain.

[0031] 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 and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intermediate having a lubricating structure, characterized in that: include: The intermediate body comprises a shell and a lubrication structure mounted on the shell. A lubricating oil cavity is formed in the center of the intermediate body, and turbine shaft cavities are provided on both sides of the lubricating oil cavity. A floating bearing mounting groove is provided on the outer side of each turbine shaft cavity. An oil outlet is provided at the bottom of the shell, and lubricating oil overflowing from both sides of the turbine shaft cavities flows through the inner cavity of the shell to the oil outlet. Branch pipes connecting to the upper surface of the shell are provided at the upper part of both the lubricating oil cavity and the two turbine shaft cavities. The lubrication structure has holes corresponding to the branch pipes at the lower part and an oil inlet at the upper part, and the oil inlet is connected to three holes at the bottom of the lubrication structure. The lubrication structure includes a valve body. The valve body has a tapered hole at the top, and diversion holes leading to the lower surface of the valve body are provided at the bottom and sides of the tapered hole; the valve body has an oil inlet above the tapered hole; the valve body has mounting holes for fixing to the shell of the intermediate body; the mounting holes are located at the four corners of the valve body and are vertically connected.

2. The intermediate with a lubricating structure according to claim 1, characterized in that: The depth of the tapered hole is 1 / 2 of the valve body height.

3. The intermediate with a lubricating structure according to claim 2, characterized in that: The diversion holes located on both sides of the conical hole include an upper inclined tube and a lower straight tube. The diversion hole located at the bottom of the conical hole is a straight tube, and the branch pipe is also a straight tube.

4. The intermediate with a lubricating structure according to claim 3, characterized in that: The angle between the inclined tube and the straight tube is 135°.

5. The intermediate with a lubricating structure according to claim 4, characterized in that: The oil inlet protrudes from or is embedded in the upper surface of the valve body.

6. The intermediate having a lubricating structure according to claim 5, characterized in that: The three diversion orifices described herein have the same diameter.

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