Supercharger lubricating oil channel structure with good heat dissipation effect

Abstract

The application belongs to the technical field of mechanical lubrication, and discloses a supercharger lubricating oil channel structure with good heat dissipation effect, which comprises a supercharger body, a gear box fixed on the supercharger body, and a crankcase fixed on the gear box, a gear set is arranged in the gear box, the gear set comprises a plurality of transmission gears, an oil inlet channel communicated with the gear box is arranged through the inner side wall of the crankcase, an oil return channel is arranged on the inner side wall of the gear box close to the bottom of the gear box, and a heat dissipation mechanism is arranged on the gear box. According to the application, the lubricating oil is first injected into the crankcase, the lubricating oil in the crankcase is discharged into the gear box through the oil inlet channel until the gear box is filled with the lubricating oil, and when the gear set in the gear box works, the lubricating oil in the gear box can directly lubricate the gear set, the operation of connecting the oil inlet channel with an external pipeline for conveying is not needed, the gear set can be directly lubricated and cooled, and the service life of the device as a whole is ensured.

Description

Technical Field

[0001] This utility model relates to the field of mechanical lubrication technology, and in particular to a turbocharger lubrication oil passage structure with good heat dissipation effect. Background Technology

[0002] Mechanical supercharging technology is increasingly widely used in the motorcycle industry. It can effectively improve the power output of motorcycles. The most common type is the turbocharger, which uses the rotation of a centrifugal impeller to compress air at high speed to achieve supercharging. When using a turbocharger, its transmission components need to be lubricated to ensure its stable operation.

[0003] Existing turbocharger lubrication systems mostly rely on external independent oil pumps and metal pipelines to supply or return oil, achieving circulating lubrication of the turbocharger's transmission components. On the one hand, pipeline transportation increases the lubricating oil delivery time and distance; on the other hand, the numerous pipeline interfaces and the aging of seals under vibration significantly increase the risk of lubricating oil leakage. This can lead to insufficient lubricating oil supply or poor return flow, failing to fully meet the lubrication and heat dissipation needs of the turbocharger gear set. This can easily cause the gear set to wear more rapidly due to overheating or poor lubrication, shortening its service life. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a turbocharger lubrication oil passage structure with good heat dissipation.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a turbocharger lubrication oil passage structure with good heat dissipation effect, including a turbocharger body, a gearbox fixed on the turbocharger body, and a crankcase fixed on the gearbox. The gearbox contains a gear set, which includes multiple transmission gears. The inner sidewall of the crankcase is provided with an oil inlet channel communicating with the inside of the gearbox. An oil return channel is provided on the inner sidewall of the gearbox near the bottom of the gearbox. The gearbox is provided with a heat dissipation mechanism for improving the heat dissipation speed of the lubricating oil.

[0006] By adopting the above technical solution, lubricating oil is first injected into the crankcase. The lubricating oil in the crankcase will be discharged into the gearbox through the oil inlet channel until the gearbox is full of lubricating oil. When the gear set in the gearbox is working, the lubricating oil in the gearbox can directly lubricate the gear set. There is no need to connect the oil inlet channel to the external pipeline for transportation. The gear set can be directly lubricated and cooled, ensuring the overall service life of the device.

[0007] Furthermore, the heat dissipation mechanism includes an oil return assembly, which includes a sealing shell fixed to the gearbox, an oil outlet pipe extending through the gearbox and communicating with the oil return channel, an oil delivery pipe communicating with the oil outlet pipe, and an oil return pipe fixed to and communicating with the top of the sealing shell. The other end of the oil delivery pipe is communicating with the bottom of the sealing shell, and the end of the oil return pipe away from the sealing shell is communicating with the inside of the crankcase. The heat dissipation mechanism also includes an oil delivery assembly for drawing lubricating oil from the oil delivery pipe into the sealing shell and discharging it from the sealing shell into the oil return pipe, and a heat dissipation assembly for improving the heat dissipation speed of the lubricating oil.

[0008] By adopting the above technical solution, after the oil supply component is working, the lubricating oil in the return oil channel is first drawn out through the oil outlet pipe, then discharged into the sealing housing through the oil supply pipe, and finally discharged into the crankcase through the return oil pipe. During this process, the heat dissipation component will dissipate heat from the flowing lubricating oil to reduce the temperature of the lubricating oil, thereby improving the heat dissipation effect.

[0009] Furthermore, the oil delivery assembly includes a drive shaft that passes through and is rotatably connected to the sealing shell, a drive gear that is fixedly sleeved on the drive shaft and located inside the sealing shell, a driven shaft that is rotatably installed inside the sealing shell, and a driven gear that is fixedly sleeved on the driven shaft and meshes with the drive gear. The drive shaft and the sealing shell are kept sealed by a rotating shaft seal, and the drive shaft is fixed and coaxially arranged with one of the transmission gears in the gearbox.

[0010] By adopting the above technical solution, when the gear set inside the gearbox is working, the transmission gear connected to the drive shaft rotates and drives the drive shaft to rotate, which in turn drives the drive gear fixed to the drive shaft and the driven gear meshing with the drive gear to rotate. This allows the lubricating oil in the oil delivery pipe to be drawn into the sealing shell and then discharged from the sealing shell to the return oil pipe, thereby realizing the normal delivery operation of the lubricating oil (the working principle of this part is the same as the working principle of the gear pump, that is, the core working principle of the gear pump is to change the volume of the pump chamber by the meshing and rotation of a pair of gears to draw in and discharge liquid).

[0011] Furthermore, the driven shaft passes through the sealing shell and is rotatably connected. The driven shaft and the sealing shell are kept sealed by a rotating shaft seal. The heat dissipation assembly includes a plurality of heat dissipation fins that pass through and are fixed on the sealing shell, and a heat dissipation fan that is fixedly sleeved on the driven shaft. The end of the heat dissipation fins away from the heat dissipation fan extends into the sealing shell.

[0012] By adopting the above technical solution, the heat dissipation fins will transfer the heat of the lubricating oil that enters the sealed shell from inside the sealed shell to outside the sealed shell, thus accelerating the dissipation of heat from the lubricating oil. At the same time, when the driven shaft rotates, it drives the cooling fan to rotate, which will dissipate the heat around the sealed shell away from the sealed shell, thus accelerating the dissipation of heat and improving the heat dissipation effect of the lubricating oil.

[0013] Furthermore, the gearbox is equipped with a filter assembly, which includes a connecting cylinder fixed to the gearbox, a filter cylinder threaded to the inner wall of the connecting cylinder, a filter screen fixed inside the filter cylinder, and a connecting pipe fixed and connected to the bottom of the filter cylinder. The end of the oil outlet pipe away from the oil return channel is fixed and connected to the top of the connecting cylinder, and the end of the oil delivery pipe away from the sealing shell is rotatably installed at the lower end of the connecting pipe. The sealing shell is connected to the inside of the connecting pipe.

[0014] By adopting the above technical solution, during the lubricating oil transportation process, the lubricating oil is first discharged from the oil outlet pipe into the connecting cylinder, and then flows through the filter screen to the inner bottom wall of the filter cylinder. Next, it is discharged from the filter cylinder into the connecting pipe, and finally from the connecting pipe into the oil delivery pipe. The filter screen blocks the debris generated by the wear of gear sets and other components, reducing the probability of debris flowing back into the gearbox and crankcase with the lubricating oil, causing wear to the transmission components in the gearbox and crankcase, and extending the service life of the device.

[0015] Furthermore, a protective assembly is provided on the sealing shell. The protective assembly includes a protective shell fixed to the sealing shell and an internally threaded tube threaded to the protective shell. An air inlet hole is provided through the side wall of the protective shell. The protective assembly also includes a first dustproof mesh fixed in the air inlet hole and a second dustproof mesh fixed in the internally threaded tube. The heat dissipation fins and the heat dissipation fan are both located inside the protective shell.

[0016] By adopting the above technical solution, during the rotation of the cooling fan, air is first discharged into the protective shell through the air intake hole, and then discharged through the internal threaded tube. During this process, the first and second dustproof nets will block dust in the air, reducing the probability of dust entering the protective shell. In addition, the cooling fan is located inside the protective shell when it rotates, which improves safety.

[0017] Furthermore, a fixing strip is fixed on the internally threaded tube, and an auxiliary block coaxially arranged with the internally threaded tube is fixed on the fixing strip.

[0018] By adopting the above technical solution, the rotating auxiliary block drives the internal threaded tube to rotate, which can realize the installation or disassembly of the internal threaded tube and the protective shell, and facilitate the subsequent cleaning work.

[0019] Furthermore, both the sidewall of the auxiliary block and the sidewall of the connecting pipe are fixed with multiple anti-slip strips.

[0020] By adopting the above technical solution, the anti-slip strip reduces the probability of slippage when rotating the auxiliary block or connecting pipe.

[0021] In summary, this utility model has the following beneficial effects: In this application, by improving the existing technology, the gear set can be directly lubricated and cooled without the need for the oil inlet channel to be connected to an external pipeline for transportation, thus ensuring the overall service life of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model; Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the internal structure of the sealing shell; Figure 4 This is a schematic diagram illustrating the connection structure between the driving gear and the driven gear in an embodiment of this utility model; Figure 5 yes Figure 1 Another perspective is used to highlight the connection structure between the gearbox and crankcase; Figure 6 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the connecting cylinder and the filter cylinder; Figure 7 yes Figure 1 Enlarged diagram of point A in the middle.

[0023] In the diagram: 1. Turbocharger body; 2. Gearbox; 3. Crankcase; 4. Oil inlet channel; 5. Oil return channel; 6. Cooling mechanism; 61. Oil return assembly; 611. Sealing shell; 612. Oil outlet pipe; 613. Oil delivery pipe; 614. Oil return pipe; 62. Oil delivery assembly; 621. Drive shaft; 622. Drive gear; 623. Driven shaft; 624. Driven gear; 63. Cooling assembly; 631. Cooling fins; 632. Cooling fan; 7. Filter assembly; 71. Connecting cylinder; 72. Filter cartridge; 73. Filter screen; 74. Connecting pipe; 8. Protective assembly; 81. Protective shell; 82. Internally threaded pipe; 83. First dustproof screen; 84. Second dustproof screen; 9. Air inlet hole; 10. Fixing strip; 11. Auxiliary block. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] like Figure 1-7As shown in the illustration, this application discloses a turbocharger lubrication oil passage structure with good heat dissipation, including a turbocharger body 1, a heat dissipation mechanism 6, a filter assembly 7, and a protective assembly 8. A gearbox 2 is fixed on the turbocharger body 1. A crankcase 3 is fixed on the gearbox 2, and a gear set including multiple transmission gears is installed inside the gearbox 2. An oil inlet channel 4 communicating with the inside of the gearbox 2 is provided through the inner side wall of the crankcase 3, and an oil return channel 5 is provided near the bottom of the gearbox 2 on the inner side wall of the gearbox 2. First, lubricating oil is injected into the crankcase 3, and the lubricating oil in the crankcase 3 will be discharged into the gearbox 2 through the oil inlet channel 4 until the gearbox 2 is full of lubricating oil. When the gear set in the gearbox 2 is working, the lubricating oil in the gearbox 2 can directly lubricate the gear set without the need for the oil inlet channel 4 to be connected to an external pipeline for transportation. This allows for direct lubrication and cooling of the gear set, ensuring the overall service life of the device.

[0026] A heat dissipation mechanism 6 is mounted on the gearbox 2 and is used to improve the cooling speed of the lubricating oil. The heat dissipation mechanism 6 includes an oil return assembly 61, an oil supply assembly 62, and a heat dissipation assembly 63. The oil return assembly 61 includes a sealing shell 611, an oil outlet pipe 612, an oil supply pipe 613, and an oil return pipe 614. The sealing shell 611 is fixed to the gearbox 2. The oil outlet pipe 612 passes through the gearbox 2 and communicates with the oil return channel 5. The oil supply pipe 613 communicates with the oil outlet pipe 612, and its other end communicates with the bottom of the sealing shell 611. The oil return pipe 614 is fixed to and communicates with the top of the sealing shell 611, and its end away from the sealing shell 611 communicates with the inside of the crankcase 3. After the oil supply assembly 62 is working, the lubricating oil in the return oil channel 5 is first drawn out through the oil outlet pipe 612, then discharged into the sealing housing 611 through the oil supply pipe 613, and finally discharged into the crankcase 3 through the return oil pipe 614. During this process, the heat dissipation assembly 63 will dissipate heat on the flowing lubricating oil to reduce the temperature of the lubricating oil, thereby improving the heat dissipation effect.

[0027] The oil delivery assembly 62 is used to draw lubricating oil from the oil delivery pipe 613 into the sealing housing 611 and discharge it from the sealing housing 611 into the return oil pipe 614. The oil delivery assembly 62 includes a drive shaft 621, a drive gear 622, a driven shaft 623, and a driven gear 624. The drive shaft 621 is rotatably connected to the sealing housing 611 and is sealed to it by a rotary shaft seal. The drive shaft 621 is fixed and coaxially arranged with one of the transmission gears in the gearbox 2. The drive gear 622 is fixedly sleeved on the drive shaft 621 and located inside the sealing housing 611. The driven shaft 623 is rotatably mounted inside the sealing housing 611 and is rotatably connected to it. The driven shaft 623 is sealed to it by a rotary shaft seal. The driven gear 624 is fixedly sleeved on the driven shaft 623 and meshes with the drive gear 622. When the gear set inside the gearbox 2 is working, the transmission gear connected to the drive shaft 621 rotates and drives the drive shaft 621 to rotate, which in turn drives the drive gear 622 fixed to the drive shaft 621 and the driven gear 624 meshing with the drive gear 622 to rotate. This draws the lubricating oil in the oil supply pipe 613 into the sealing shell 611, and then discharges it from the sealing shell 611 into the return oil pipe 614, thus realizing the normal delivery operation of lubricating oil (the working principle of this part is the same as the working principle of the gear pump, that is, the core working principle of the gear pump is to change the volume of the pump chamber by the meshing and rotation of a pair of gears to suck in and discharge liquid).

[0028] The heat dissipation assembly 63 is used to improve the heat dissipation speed of the lubricating oil. The heat dissipation assembly 63 includes heat dissipation fins 631 and a cooling fan 632. Multiple heat dissipation fins 631 are provided, all of which are inserted through and fixed to the sealing shell 611. The end of the heat dissipation fin 631 away from the cooling fan 632 extends into the sealing shell 611. The cooling fan 632 is fixedly sleeved on the driven shaft 623. The heat dissipation fins 631 transfer the heat of the lubricating oil entering the sealing shell 611 from inside the sealing shell 611 to the outside, accelerating the dissipation of heat from the lubricating oil. Simultaneously, the rotation of the driven shaft 623 drives the cooling fan 632 to rotate, which in turn dissipates heat from around the sealing shell 611, further accelerating heat dissipation and thus improving the heat dissipation effect of the lubricating oil.

[0029] The filter assembly 7 is mounted on the gearbox 2 and includes a connecting cylinder 71, a filter cartridge 72, a filter screen 73, and a connecting pipe 74. The connecting cylinder 71 is fixed to the gearbox 2. The end of the oil outlet pipe 612 away from the oil return channel 5 is fixed to and communicates with the top of the connecting cylinder 71. The filter cartridge 72 is threadedly connected to the inner wall of the connecting cylinder 71. The filter screen 73 is fixed inside the filter cartridge 72, and the connecting pipe 74 is fixed to and communicates with the bottom of the filter cartridge 72. The end of the oil delivery pipe 613 away from the sealing shell 611 is rotatably mounted to the lower end of the connecting pipe 74. The sealing shell 611 communicates with the inside of the connecting pipe 74. During the lubricating oil delivery process, the lubricating oil is first discharged from the oil outlet pipe 612 into the connecting cylinder 71, and then flows through the filter screen 73 to the inner bottom wall of the filter cylinder 72. Next, it is discharged from the filter cylinder 72 into the connecting pipe 74, and finally from the connecting pipe 74 into the oil delivery pipe 613. The filter screen 73 blocks the debris generated by the wear of the gear set and other components, reducing the probability of debris flowing back into the gearbox 2 and crankcase 3 with the lubricating oil, causing wear to the transmission components in the gearbox 2 and crankcase 3, and extending the service life of the device.

[0030] A protective assembly 8 is mounted on a sealing shell 611. The protective assembly 8 includes a protective shell 81, an internally threaded tube 82, a first dust filter 83, and a second dust filter 84. The protective shell 81 is fixed to the sealing shell 611, and the heat dissipation fins 631 and the cooling fan 632 are both located inside the protective shell 81. An air inlet hole 9 is provided through the side wall of the protective shell 81, and the internally threaded tube 82 is threadedly connected to the protective shell 81. The first dust filter 83 is fixed inside the air inlet hole 9, and the second dust filter 84 is fixed inside the internally threaded tube 82. During the rotation of the cooling fan 632, air is first discharged into the protective shell 81 through the air inlet hole 9, and then discharged through the internally threaded tube 82. During this process, the first dust filter 83 and the second dust filter 84 block dust in the air, reducing the probability of dust entering the protective shell 81. In addition, the cooling fan 632 is located inside the protective shell 81 when rotating, improving safety.

[0031] A fixing strip 10 is fixed on the internally threaded tube 82, and an auxiliary block 11 coaxially arranged with the internally threaded tube 82 is fixed on the fixing strip 10. Rotating the auxiliary block 11 causes the internally threaded tube 82 to rotate, thereby realizing the installation or removal between the internally threaded tube 82 and the protective shell 81, which facilitates subsequent cleaning work.

[0032] Multiple anti-slip strips are fixed to the side walls of both the auxiliary block 11 and the connecting pipe 74. The anti-slip strips reduce the probability of slippage when rotating the auxiliary block 11 or the connecting pipe 74.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A turbocharger lubrication oil passage structure with good heat dissipation, comprising a turbocharger body (1), a gearbox (2) fixed on the turbocharger body (1), and a crankcase (3) fixed on the gearbox (2), characterized in that: The inner wall of the crankcase (3) is provided with an oil inlet channel (4) that communicates with the inside of the gearbox (2). The inner wall of the gearbox (2) is provided with an oil return channel (5) near the bottom of the gearbox (2). The gearbox (2) is provided with a heat dissipation mechanism (6) for improving the heat dissipation speed of the lubricating oil.

2. The turbocharger lubrication oil passage structure with good heat dissipation according to claim 1, characterized in that: The heat dissipation mechanism (6) includes an oil return assembly (61), which includes a sealing shell (611) fixed to the gearbox (2), an oil outlet pipe (612) that runs through the gearbox (2) and communicates with the oil return channel (5), an oil delivery pipe (613) that communicates with the oil outlet pipe (612), and an oil return pipe (614) fixed to and communicates with the top of the sealing shell (611). The other end of the oil delivery pipe (613) communicates with the bottom of the sealing shell (611), and the end of the oil return pipe (614) away from the sealing shell (611) communicates with the inside of the crankcase (3). The heat dissipation mechanism (6) also includes an oil delivery assembly (62) for drawing lubricating oil from the oil delivery pipe (613) into the sealing shell (611) and discharging it from the sealing shell (611) into the oil return pipe (614), and a heat dissipation assembly (63) for improving the heat dissipation speed of the lubricating oil.

3. The turbocharger lubrication oil passage structure with good heat dissipation according to claim 2, characterized in that: The oil delivery assembly (62) includes a drive shaft (621) that passes through and is rotatably connected to the sealing shell (611), a drive gear (622) that is fixedly sleeved on the drive shaft (621) and located in the sealing shell (611), a driven shaft (623) that is rotatably installed in the sealing shell (611), and a driven gear (624) that is fixedly sleeved on the driven shaft (623) and meshes with the drive gear (622). The drive shaft (621) and the sealing shell (611) are sealed by a rotating shaft seal. The drive shaft (621) is fixed and coaxially arranged with one of the transmission gears in the gearbox (2).

4. The turbocharger lubrication oil passage structure with good heat dissipation according to claim 3, characterized in that: The driven shaft (623) passes through the sealing shell (611) and is rotatably connected. The driven shaft (623) and the sealing shell (611) are sealed by a rotating shaft seal. The heat dissipation assembly (63) includes a plurality of heat dissipation fins (631) that pass through and are fixed on the sealing shell (611) and a heat dissipation fan (632) that is fixedly sleeved on the driven shaft (623). The end of the heat dissipation fins (631) away from the heat dissipation fan (632) extends into the sealing shell (611).

5. The turbocharger lubrication oil passage structure with good heat dissipation according to claim 4, characterized in that: The gearbox (2) is provided with a filter assembly (7), which includes a connecting cylinder (71) fixed on the gearbox (2), a filter cylinder (72) threaded to the inner wall of the connecting cylinder (71), a filter screen (73) fixed inside the filter cylinder (72), and a connecting pipe (74) fixed and connected to the bottom of the filter cylinder (72). The end of the oil outlet pipe (612) away from the oil return channel (5) is fixed and connected to the top of the connecting cylinder (71). The end of the oil delivery pipe (613) away from the sealing shell (611) is rotatably installed at the lower end of the connecting pipe (74). The sealing shell (611) is connected to the inside of the connecting pipe (74).

6. The turbocharger lubrication oil passage structure with good heat dissipation according to claim 5, characterized in that: The sealing shell (611) is provided with a protective component (8), which includes a protective shell (81) fixed on the sealing shell (611) and an internally threaded tube (82) threadedly connected to the protective shell (81). An air inlet hole (9) is provided through the side wall of the protective shell (81). The protective component (8) also includes a first dustproof mesh (83) fixed in the air inlet hole (9) and a second dustproof mesh (84) fixed in the internally threaded tube (82). The heat dissipation fins (631) and the heat dissipation fan (632) are both located inside the protective shell (81).

7. The turbocharger lubrication oil passage structure with good heat dissipation according to claim 6, characterized in that: A fixing strip (10) is fixed on the internally threaded tube (82), and an auxiliary block (11) is fixed on the fixing strip (10) and is coaxially arranged with the internally threaded tube (82).

8. The turbocharger lubrication oil passage structure with good heat dissipation according to claim 7, characterized in that: The sidewalls of the auxiliary block (11) and the connecting pipe (74) are both fixed with multiple anti-slip strips.

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