Oil nozzle of turbocharger

Abstract

The utility model relates to the technical field of oil nozzles, in particular to an oil nozzle of a turbocharger, which adopts the technical scheme that the oil nozzle comprises a shell, a working wheel is rotatably mounted in the shell through a sealing cover, and the sealing cover comprises a front cover and a rear cover; the working wheel comprises a driving impeller and a driven impeller; a hole is formed in the circle center of the front end of the driven impeller and communicates with a liquid inlet pipe, a connecting base is fixedly installed in the liquid inlet pipe, and a centering groove is formed in the back face of the connecting base. A second transmission shaft is arranged at the circle center of the front end of the driving impeller, a spline is arranged at the front end of the second transmission shaft, and the spline is matched with the centering groove in size. The oil conveying device has the advantages that the oil conveying amount is effectively adjusted through a simple mechanical structure in the high-temperature forging environment, dependence on easily-damaged electric control equipment is avoided, and meanwhile the reliable cooling function can be provided for a die and a forge piece in the complex forging process.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil nozzle technical field, concretely is a kind of turbocharger oil nozzle. BACKGROUND

[0002] In the forging process, especially for some complex shape forgings or the forging of the parts with high requirements on surface quality and precision, oiling treatment is needed for the die and the forging. Oiling can play a certain cooling effect, help dissipate the heat generated during the forging process, and avoid affecting the performance and quality of the die and the forging due to overheating.

[0003] Currently, the oiling amount of the oil nozzle is mainly controlled by the oil pump. When the speed of the oil pump increases, the oiling amount increases accordingly; on the contrary, when the speed of the oil pump decreases, the oiling amount also decreases accordingly. The control of the speed of the oil pump mainly relies on the electric control equipment to realize adjustment. In the forging operation process, the environmental temperature is extremely high, and under such high-temperature conditions, the electric control equipment is prone to damage. Relatively speaking, some relatively simple mechanical structures can adjust the oil delivery amount while keeping the speed unchanged. Based on this, in order to solve the above problems, a turbocharger oil nozzle is provided. SUMMARY

[0004] The utility model aims at providing a kind of turbocharger oil nozzle, with the advantages of effective adjustment of oil delivery amount under high-temperature forging environment by simple mechanical structure, avoiding the dependence on easily damaged electric control equipment, and providing reliable cooling function for die and forging in complex forging process, solving the problem of easy damage of electric control equipment when controlling the oiling amount of oil nozzle by adjusting the speed of oil pump in the forging operation due to high environmental temperature, and further affecting the oiling effect and forging quality.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of turbocharger oil nozzle, including shell, the shell is rotated and is installed work wheel by sealing cover inside, and the sealing cover includes front cover and rear cover;The work wheel includes driving vane and driven vane;

[0006] The driven vane front end center is holed and is installed with inlet pipe, and the inlet pipe is fixedly installed with connecting seat, and the back of the connecting seat is provided with centering groove;

[0007] The driving vane front end center is equipped with second transmission shaft, the second transmission shaft front end is equipped with spline, and the spline is matched with the size of centering groove.

[0008] Preferably, the top of one side of the shell is a liquid outlet and is connected and installed with a nozzle, and the side of the shell above the liquid outlet is opened and connected and installed with a communication groove.

[0009] In the design, the top of one side of the shell is arranged as a liquid outlet end and a nozzle is installed in communication with the liquid outlet end, so that liquid is sprayed from the liquid outlet end through the nozzle; an opening is arranged on one side of the shell above the liquid outlet end and a communication groove is installed in communication with the opening, thereby providing a structural basis for subsequent installation of a viewing window and other components.

[0010] Preferably, a screw hole is arranged at the communication groove and a viewing window is fixedly installed by means of a mounting screw, and the viewing window is embedded with a transparent tempered glass.

[0011] In the design, the screw hole is arranged at the communication groove and the viewing window is fixedly installed by means of a mounting screw, and the transparent tempered glass is embedded in the viewing window, so that the working condition inside the shell can be observed subsequently.

[0012] Preferably, a communication pipe is installed in communication with the opening at the center of the front cover, and a first sealing bearing is embedded in the communication pipe, and the front cover is fixedly installed on the front surface of the shell by means of a mounting screw.

[0013] In the design, the communication pipe is installed in communication with the opening at the center of the front cover, and the first sealing bearing is embedded in the communication pipe, and the front cover is fixedly installed on the front surface of the shell by means of a mounting screw, thereby providing a basis structure for rotationally installing the liquid inlet pipe of the driven impeller and ensuring that the liquid inlet pipe can rotate flexibly.

[0014] Preferably, a reserved hole is arranged at the center of the rear cover, and a second sealing bearing is embedded in the reserved hole, and the second sealing bearing is coaxial with the inner hole axis of the first sealing bearing.

[0015] In the design, the reserved hole is arranged at the center of the rear cover, and the second sealing bearing is embedded in the reserved hole, and the second sealing bearing is coaxial with the inner hole axis of the first sealing bearing, thereby providing a passage for the first transmission shaft of the driving impeller to pass through and ensuring the accuracy of the installation positions of the driving impeller and the driven impeller and the stability of transmission.

[0016] Preferably, the second sealing bearing adopts a contact type sealing bearing structure design.

[0017] In the design, the second sealing bearing adopts a contact type sealing bearing structure design, thereby better preventing liquid leakage, ensuring the sealing performance and stability of the equipment, and allowing the first transmission shaft to move in the axial direction.

[0018] Preferably, the outer sides of the driven impeller and the driving impeller are in contact with the inner wall of the shell but are not fixedly connected, and the opposite sides of the driven impeller and the driving impeller are each provided with curved blades, and the driven impeller and the driving impeller are not in contact and the spacing size thereof matches the spline size.

[0019] In the design, the driven impeller and the driving impeller are respectively in contact with the inner wall of the shell without fixed connection, so that the working wheel can rotate flexibly in the shell; the curved blades are arranged on the opposite side of the driven impeller and the driving impeller, so that the liquid can be accelerated and thrown to the inner wall of the shell under the action of the curved blades during the rotation of the impeller; the driven impeller and the driving impeller are not in contact and the spacing size matches the spline size, so that the spline can be accurately inserted into the centering groove when the driving impeller moves axially, and power connection is realized.

[0020] Preferably, the liquid inlet pipe is rotatably installed in the communication pipe through the first sealing bearing.

[0021] In the design, the liquid inlet pipe is rotatably installed in the communication pipe through the first sealing bearing, so that the liquid inlet pipe can rotate flexibly and ensure that the liquid can flow smoothly into the interior of the equipment.

[0022] Preferably, the first transmission shaft is welded and installed at the back center of the driving impeller, and the first transmission shaft passes through the second sealing bearing, and the driving impeller can move axially in the shell along the second sealing bearing through the first transmission shaft.

[0023] In the design, the first transmission shaft is welded and installed at the back center of the driving impeller, which ensures the stability of the connection between the first transmission shaft and the driving impeller, so that they can move synchronously. At the same time, the first transmission shaft passes through the second sealing bearing, which not only provides support for the first transmission shaft to ensure its flexibility, but also plays a sealing role to prevent liquid leakage.

[0024] A suitable transmission structure, such as a driving motor with a cylinder, is also installed at the rear end of the first transmission shaft. The motor output shaft is connected to the first transmission shaft, and when the motor starts, the rotation of the motor output shaft can be transmitted to the first transmission shaft, thereby driving the driving impeller to rotate. When it is necessary to adjust the oil injection amount, the cylinder starts to work to push and pull the driving motor connected thereto. Since the driving motor is connected to the first transmission shaft, the first transmission shaft can move axially in the shell along the second sealing bearing. The driving impeller moves with the first transmission shaft, changing the spacing between the driving impeller and the driven impeller, so that the spline is inserted into the centering groove. Since the driven impeller and the driving impeller are connected through the spline and the centering groove, the rotation of the driving impeller will drive the driven impeller to rotate synchronously, realizing power connection. Through the change of the power connection state of the driving impeller and the driven impeller, the adjustment of the oil injection amount is realized.

[0025] Preferably, the spline is designed in a triangular pyramid structure, and the spline, the second transmission shaft and the driven impeller are integrally formed by casting.

[0026] In the design, the spline is designed as a triangular pyramid structure, so that the spline is more easily inserted into the centering groove; the spline, the second transmission shaft and the driven impeller are integrally formed by casting, so that the connection strength of the spline and the related parts and the stability of the overall structure are improved.

[0027] Compared with the prior art, the utility model has the advantages that:

[0028] The utility model discloses a working wheel is formed by the driven impeller and the driven impeller, and is rotatably installed in the shell through the sealing cover, and the liquid inlet pipe at the front end of the driven impeller is used for liquid inflow, and the spline at the front end of the second transmission shaft of the driving impeller is matched with the centering groove at the back of the driven impeller connecting seat.

[0029] When it is necessary to adjust the oil injection amount, the first transmission shaft is axially moved in the shell along the second sealing bearing through the simple mechanical transmission structure such as the driving motor with the cylinder installed at the rear end of the first transmission shaft, the driving impeller is moved, the distance between the driving impeller and the driven impeller is changed, the spline is inserted into the centering groove, the driving impeller drives the driven impeller to synchronously rotate, the liquid is accelerated under the action of the opposite side bending blade of the driven impeller and the driving impeller and is thrown to the inner wall of the shell, and then is sprayed from the liquid outlet at the top of one side of the shell through the nozzle, so that the effective adjustment of the oil injection amount is realized.

[0030] So that the utility model reaches the effect that the oil injection amount is adjusted through the simple mechanical structure instead of the easily-damaged electric control equipment under the high-temperature forging environment, the problem that the electric control equipment is damaged due to the excessively high environmental temperature and the forging quality and the oil injection effect are influenced is avoided, and the reliable cooling function for the die and the forging can be provided in the complex forging process. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the front view structure schematic drawing of the utility model;

[0032] Figure 2 It is the shell structure schematic drawing of the utility model;

[0033] Figure 3 It is the sealing cover structure schematic drawing of the utility model;

[0034] Figure 4 It is the driving impeller structure schematic drawing of the utility model;

[0035] Figure 5 It is the driven impeller cross section structure schematic drawing of the utility model.

[0036] In the figure: 1, shell; 11, communication groove; 111, observation window; 12, nozzle; 2, sealing cover; 21, front cover; 211, communication pipe; 212, first sealing bearing; 22, rear cover; 221, second sealing bearing; 3, working wheel; 31, driving impeller; 311, first transmission shaft; 312, second transmission shaft; 313, spline; 32, driven impeller; 321, liquid inlet pipe; 322, connecting seat; 323, centering groove. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0038] Embodiment one: as shown in the utility model provides an embodiment: a turbocharger oil nozzle, including shell 1, the inside rotation of shell 1 is installed working wheel 3 through sealing cover 2, and sealing cover 2 includes front cover 21 and rear cover 22;Working wheel 3 includes driving impeller 31 and driven impeller 32. Figures 1 to 5

[0039] Driven impeller 32 front end center hole and communication installation liquid inlet pipe 321, liquid inlet pipe 321 is fixedly installed with connecting seat 322, and the back of connecting seat 322 is provided with centering groove 323;

[0040] Driven impeller 32 front end center hole and communication installation liquid inlet pipe 321, liquid inlet pipe 321 is fixedly installed with connecting seat 322, and the back of connecting seat 322 is provided with centering groove 323;

[0041] Specifically, the utility model discloses a working wheel 3 composed of driving impeller 31 and driven impeller 32, and it is rotationally installed in the inside of shell 1 through sealing cover 2, and the liquid inlet pipe 321 in the front end of driven impeller 32 is used for liquid inflow, and the spline 313 in the front end of second transmission shaft 312 of driving impeller 31 is matched with the size of centering groove 323 in the back of connecting seat 322 of driven impeller 32. In the use process, liquid flows from liquid inlet pipe 321, and only through driving impeller 31 to pressurize initially.

[0042] ​When the fuel injection amount needs to be adjusted, a simple mechanical transmission structure such as a driving motor with a cylinder is installed at the rear end of the first transmission shaft 311, so that the first transmission shaft 311 moves a short distance in the axial direction within the housing 1 along the second sealing bearing 221, the driving impeller 31 moves accordingly, the distance between the driving impeller 31 and the driven impeller 32 changes, the spline 313 is inserted into the centering groove 323, the driving impeller 31 drives the driven impeller 32 to rotate synchronously, the liquid is accelerated under the action of the curved blades on the side opposite to the driving impeller 31 of the driven impeller 32 and is thrown to the inner wall of the housing 1, and then is sprayed out from the liquid outlet at the top of one side of the housing 1 through the nozzle 12, thereby achieving effective adjustment of the fuel injection amount.

[0043] In order to realize the output of the liquid and facilitate the observation of the inside of the device, as shown in Figure 1 、 Figure 2 and Figure 3 , in this embodiment, the top of one side of the housing 1 is provided with a liquid outlet and is communicated with the nozzle 12, and the side of the housing 1 above the liquid outlet is provided with an opening and is communicated with the communication groove 11.

[0044] In the design, the top of one side of the housing 1 is provided with a liquid outlet and is communicated with the nozzle 12, so that the liquid is sprayed out from the liquid outlet through the nozzle 12; the side of the housing 1 above the liquid outlet is provided with an opening and is communicated with the communication groove 11, thereby providing a structural basis for the subsequent installation of the observation window 111 and other components.

[0045] Further, the observation window 111 is fixedly installed at the screw hole of the communication groove 11 by means of the installation screw, and the transparent tempered glass is embeddedly installed in the observation window 111.

[0046] In the design, the observation window 111 is fixedly installed at the screw hole of the communication groove 11 by means of the installation screw, and the transparent tempered glass is embeddedly installed in the observation window 111, so that the working condition inside the housing 1 can be observed subsequently.

[0047] Further, the front cover 21 is provided with a communication pipe 211 at the center of the front surface, the first sealing bearing 212 is embeddedly installed in the communication pipe 211, and the front cover 21 is fixedly installed on the front surface of the housing 1 by means of the installation screw.

[0048] In the design, the front cover 21 is provided with the communication pipe 211 at the center of the front surface, the first sealing bearing 212 is embeddedly installed in the communication pipe 211, and the front cover 21 is fixedly installed on the front surface of the housing 1 by means of the installation screw, thereby providing a basis structure for the rotational installation of the liquid inlet pipe 321 of the driven impeller 32 and ensuring that the liquid inlet pipe 321 can rotate flexibly.

[0049] In order to realize the installation, stable transmission and good sealing of the driving impeller, as shown in Figure 1 、 Figure 3 ,Figure 4 and Figure 5 As shown in FIG. 2, in the embodiment, a reserved hole is formed at the center of the rear cover 22, and a second sealing bearing 221 is embedded and installed in the reserved hole, and the second sealing bearing 221 coincides with the inner hole axis of the first sealing bearing 212.

[0050] In the design, by forming a reserved hole at the center of the rear cover 22 and embedding and installing a second sealing bearing 221 in the reserved hole, and making the second sealing bearing 221 coincide with the inner hole axis of the first sealing bearing 212, a channel is provided for the first transmission shaft 311 of the driving impeller 31 to pass through, while ensuring the accuracy of the installation position of the driving impeller 31 and the driven impeller 32 and the stability of the transmission.

[0051] Further, the second sealing bearing 221 adopts a contact type sealing bearing structure design.

[0052] In the design, by adopting a contact type sealing bearing structure design for the second sealing bearing 221, better prevention of liquid leakage is achieved, ensuring the sealing and stability of the equipment, and allowing the first transmission shaft 311 to move in the axial direction.

[0053] Further, the driven impeller 32 and the driving impeller 31 are respectively in contact with the inner wall of the shell 1 on the outer side but are not fixedly connected, the driven impeller 32 and the driving impeller 31 are provided with curved blades on the opposite sides, and the driven impeller 32 and the driving impeller 31 are not in contact and the spacing size matches the size of the spline 313.

[0054] In the design, by making the driven impeller 32 and the driving impeller 31 respectively in contact with the inner wall of the shell 1 on the outer side but not fixedly connected, the working wheel 3 can flexibly rotate in the shell 1; by providing curved blades on the opposite sides of the driven impeller 32 and the driving impeller 31, liquid can be accelerated and thrown to the inner wall of the shell 1 under the action of the curved blades during the rotation of the impeller; by making the driven impeller 32 and the driving impeller 31 not in contact and the spacing size matching the size of the spline 313, the spline 313 can be accurately inserted into the centering groove 323 when the driving impeller 31 moves axially, realizing power connection.

[0055] Further, the liquid inlet pipe 321 is rotatably installed in the communication pipe 211 through the first sealing bearing 212.

[0056] In the design, by rotatably installing the liquid inlet pipe 321 in the communication pipe 211 through the first sealing bearing 212, the liquid inlet pipe 321 can flexibly rotate, ensuring that the liquid can smoothly flow into the interior of the equipment.

[0057] Further, the first transmission shaft 311 is welded at the back of the main impeller 31, and the first transmission shaft 311 passes through the second sealing bearing 221, and the main impeller 31 can move axially in the shell 1 through the first transmission shaft 311.

[0058] In the design, the first transmission shaft 311 is welded at the back of the main impeller 31, and the welding method ensures the stability of the connection between the first transmission shaft 311 and the main impeller 31, so that they can move synchronously. At the same time, the first transmission shaft 311 passes through the second sealing bearing 221, and the second sealing bearing 221 not only provides support for the first transmission shaft 311 to ensure its flexibility, but also plays a sealing role to prevent liquid leakage.

[0059] A suitable transmission structure needs to be installed at the rear end of the first transmission shaft 311, such as a driving motor with a cylinder. The motor output shaft is connected to the first transmission shaft 311, and when the motor starts, the rotation of the motor output shaft can be transmitted to the first transmission shaft 311, thereby driving the main impeller 31 to rotate. When the oil injection amount needs to be adjusted, the cylinder starts to work to push and pull the driving motor connected thereto. Since the driving motor is connected to the first transmission shaft 311, the first transmission shaft 311 can move axially in the shell 1 through the second sealing bearing 221. The main impeller 31 moves with the first transmission shaft 311, changing the distance between the main impeller 31 and the driven impeller 32, so that the spline 313 is inserted into the centering groove 323. Since the driven impeller 32 and the main impeller 31 are connected through the spline 313 and the centering groove 323, the rotation of the main impeller 31 will drive the driven impeller 32 to rotate synchronously, achieving power connection. By changing the power connection state of the main impeller 31 and the driven impeller 32, the oil injection amount is adjusted.

[0060] Further, the spline 313 adopts a triangular pyramid structure design, and the spline 313, the second transmission shaft 312, and the driven impeller 32 are integrally formed by casting.

[0061] In the design, the spline 313 adopts a triangular pyramid structure design to make it easier to insert into the centering groove 323; and the spline 313, the second transmission shaft 312, and the driven impeller 32 are integrally formed by casting to improve the connection strength of the spline 313 and related components and the stability of the overall structure.

[0062] The utility model discloses a use, the liquid inlet pipe 321 of driven impeller 32 is rotated and is installed in the communicating pipe 211 through the first sealing bearing 212, guarantees that the liquid inlet pipe 321 can rotate flexibly. Again, the front cover 21 is fixedly installed on the front of the shell 1 through the mounting screw. At this moment, the rear cover 22 centrum reserved hole inserts and installs the second sealing bearing 221, and makes the second sealing bearing 221 with the first sealing bearing 212 inner hole axis coincidences, and makes the first transmission shaft 311 on the driving impeller 31 from the second sealing bearing 221 passes, and the spline 313 on the second transmission shaft 312 with the centering groove 323 of the back of connecting seat 322 accurate butt joint, makes the driving impeller 31 and driven impeller 32 can realize power connection under the axial movement. At the communicating groove 11, the observation window 111 with transparent toughened glass is fixedly installed well through the mounting screw, so that subsequent observation internal working condition.

[0063] The suitable transmission structure is installed at the rear end of the first transmission shaft 311, for example, can be the driving motor with the cylinder, and the motor output shaft connects the first transmission shaft 311 to realize power transmission.

[0064] When using, liquid flows from the liquid inlet pipe 321, at this moment, only through the driving impeller 31 to carry out pressurization, when needing to adjust the oil injection amount, the driving motor of the cylinder pushes to make the first transmission shaft 311 along the second sealing bearing 221 short distance axial movement in the shell 1. The driving impeller 31 moves along with the first transmission shaft 311, changes the interval between the driving impeller 31 and driven impeller 32, thereby making the spline 313 insert into the centering groove 323, since driven impeller 32 and driving impeller 31 are connected through the spline 313 and centering groove 323, the rotation of driving impeller 31 can drive driven impeller 32 to rotate synchronously. In the rotating process, liquid is accelerated and thrown to the inner wall of the shell 1 under the action of the bending blade on the opposite side of driven impeller 32 and driving impeller 31, and then is sprayed from the liquid outlet at the top of one side of the shell 1 through the nozzle 12, realizes the oil spraying cooling operation to the forging die or forge piece.

[0065] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

Claims

1. A turbocharger fuel injector, comprising a housing (1), the housing (1) is rotatably mounted with a seal cover (2) inside the housing (1) and a working wheel (3), characterized in that: the seal cover (2) comprises a front cover (21) and a rear cover (22); the working wheel (3) comprises a driving impeller (31) and a driven impeller (32); the driven impeller (32) is provided with a liquid inlet pipe (321) at the center of the front end, the liquid inlet pipe (321) is fixedly installed with a connecting seat (322), and the rear surface of the connecting seat (322) is provided with a centering groove (323); the driving impeller (31) is provided with a second transmission shaft (312) at the center of the front end, and the front end of the second transmission shaft (312) is provided with a spline (313), and the spline (313) is matched with the size of the centering groove (323).

2. A turbocharger fuel injector as in claim 1 wherein, The housing (1) is provided with a nozzle (12) at the top of one side, and the housing (1) is provided with a communication groove (11) at the side above the liquid outlet.

3. A turbocharger fuel injector as in claim 2 wherein, The communication groove (11) is provided with a screw hole and fixedly installed with an observation window (111) through a mounting screw, and the observation window (111) is embeddedly installed with a transparent tempered glass.

4. A turbocharger fuel injector as in claim 1, wherein The front cover (21) is provided with a communication pipe (211) at the center of the front surface, the communication pipe (211) is embeddedly installed with a first sealing bearing (212), and the front cover (21) is fixedly installed on the front surface of the housing (1) through a mounting screw.

5. A turbocharger fuel injector as in claim 1, wherein, The rear cover (22) is provided with a reserved hole at the center, and the reserved hole is embeddedly installed with a second sealing bearing (221), and the second sealing bearing (221) is coaxial with the inner hole axis of the first sealing bearing (212).

6. A turbocharger fuel injector as in claim 5 wherein, The second sealing bearing (221) adopts a contact type sealing bearing structure design.

7. A turbocharger fuel injector as in claim 1, wherein The driven impeller (32) and the driving impeller (31) are respectively in contact with the inner wall of the housing (1) but not fixedly connected, and the driven impeller (32) and the driving impeller (31) are provided with curved blades on the opposite sides, and the driven impeller (32) and the driving impeller (31) are not in contact and the spacing size is matched with the size of the spline (313).

8. A turbocharger fuel injector as in claim 1, wherein The liquid inlet pipe (321) is rotatably installed in the communication pipe (211) through the first sealing bearing (212).

9. A turbocharger fuel injector as in claim 1 wherein, The driving impeller (31) is welded with a first transmission shaft (311) at the center of the back surface, the first transmission shaft (311) passes through the second sealing bearing (221), and the driving impeller (31) can move axially in the housing (1) through the first transmission shaft (311).

10. The turbocharger fuel injector of claim 1 wherein, The spline (313) adopts a triangular pyramid structure design, and the spline (313), the second transmission shaft (312) and the driven impeller (32) are integrally formed by casting.

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