Turbocharger rotor

Abstract

The utility model discloses a turbocharger rotor which comprises a first rotor structure, a second rotor structure and a middle structure, and the first rotor structure and the second rotor structure are arranged on the two sides of the middle structure respectively. A transmission shaft is arranged in the middle structure; the first rotor structure comprises a first rotor body and a plurality of first special-shaped blades, one end of the transmission shaft is in transmission connection with one side of the first rotor body, and the first special-shaped blades are located on the other side of the first rotor body. The turbocharger rotor has the advantages that when the second special-shaped blades are impacted by airflow at the same time, the airflow contact area can be increased to the maximum extent, and airflow can be guided to be guided in the direction close to the second rotor body along the special-shaped faces, with the high bending angles, of the second special-shaped blades.

Description

Technical Field

[0001] The utility model belongs to the field of turbochargers, and in particular relates to a turbocharger rotor. Background Art

[0002] The publication number is CN210264827U, the subject name is a utility model patent for a turbine rotor and a turbocharger, and its IPC classification number is F01D5 / 14. Its technical solution discloses that "at least a portion of the turbine rotor 1 is located outside the intermediate casing 3, and the turbine rotor 1 includes a hub 10, a plurality of first blades 11 that receive the pressure of the exhaust gas to rotate the hub, and a plurality of second blades 12 that receive the pressure of the exhaust gas to rotate the hub. The first blades 11 and the second blades 12 are alternately arranged along the circumference of the hub."

[0003] As can be seen, the above utility model patent has disclosed one technical solution for a turbocharger rotor. However, the technical solution disclosed in the above utility model patent focuses on forming a first sealed cavity between the turbine rotor and the shaft to solve problems such as seal assembly failure, but does not further address problems such as guided airflow impact, and further improvement is needed. Utility Model Content

[0004] The utility model aims at the existing technical situation, overcomes the above defects and provides a turbocharger rotor.

[0005] The utility model adopts the following technical solution: a turbocharger rotor comprises a first rotor structure, a second rotor structure and an intermediate structure, wherein the first rotor structure and the second rotor structure are arranged on both sides of the intermediate structure, wherein:

[0006] The middle structure has a drive shaft built into it;

[0007] The first rotor structure includes a first rotor body and a plurality of first special-shaped blades, one end of the transmission shaft is transmission-connected to one side of the first rotor body, and the first special-shaped blades are located on the other side of the first rotor body;

[0008] The second rotor structure includes a second rotor body and a plurality of second special-shaped blades, the other end of the transmission shaft is transmission-connected to one side of the second rotor body, and the second special-shaped blades are located on the other side of the second rotor body;

[0009] The bending angle of the second special-shaped blade is greater than the bending angle of the first special-shaped blade.

[0010] As a preferred technical solution of the above technical solution, the first special-shaped blade is provided with a first special-shaped blade first end and a first special-shaped blade second end, the first special-shaped blade first end and the first special-shaped blade second end are integrally formed, the first end of the first special-shaped blade is partially inscribed in the first rotor body, and the first end of the first special-shaped blade is fixedly connected to the first rotor body; the second special-shaped blade is provided with a second special-shaped blade first end and a second special-shaped blade second end, the second special-shaped blade first end and the second special-shaped blade second end are integrally formed, the first end of the second special-shaped blade is partially inscribed in the second rotor body, and the first end of the second special-shaped blade is fixedly connected to the second rotor body.

[0011] As a preferred technical solution of the above technical solution, the second rotor structure further includes a plurality of third special-shaped blades, the third special-shaped blades are smaller than the second special-shaped blades, and the third special-shaped blades and the second special-shaped blades are alternately arranged.

[0012] As a preferred technical solution of the above technical solution, the third special-shaped blade is provided with a third special-shaped blade first end and a third special-shaped blade second end, the third special-shaped blade first end and the third special-shaped blade second end are integrally formed, the third special-shaped blade first end is partially inscribed in the second rotor body, and the third special-shaped blade first end is fixedly connected to the second rotor body.

[0013] As a preferred technical solution of the above technical solutions, the intermediate structure includes an intermediate ring and a lateral docking piece, and the lateral docking piece is fixedly connected to the intermediate ring.

[0014] The turbocharger rotor disclosed by the present utility model has the beneficial effect that when multiple second special-shaped blades are simultaneously impacted by airflow, the airflow contact area can be maximized and the airflow can be guided along the special-shaped surfaces of the second special-shaped blades with higher bending angles in a direction close to the second rotor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of this application.

[0016] Figure 2 It is a side view of the present application.

[0017] Figure 3 It is a top view of this application.

[0018] Figure 4 It is a stereogram from one viewing angle of this application.

[0019] Figure 5 It is a stereoscopic diagram from another perspective of this application.

[0020] The figure marks include: 100-first rotor structure; 110-first rotor body; 120-first special-shaped blade; 121-first end of the first special-shaped blade; 122-second end of the first special-shaped blade; 200-second rotor structure; 210-second rotor body; 220-second special-shaped blade; 221-first end of the second special-shaped blade; 222-second end of the second special-shaped blade; 230-third special-shaped blade; 231-first end of the third special-shaped blade; 232-second end of the third special-shaped blade; 300-intermediate structure; 310-intermediate ring; 320-lateral docking piece; 321-docking piece body; 322-docking groove; 323-docking hole. DETAILED DESCRIPTION

[0021] The utility model discloses a turbocharger rotor, which is described in conjunction with a preferred embodiment (embodiment 1) and with reference to the accompanying drawings. Figures 1 to 5 , the specific implementation methods of the utility model are further described.

[0022] See attached figure Figures 1 to 5 , Figures 1 to 5 The turbocharger rotor is shown from different perspectives.

[0023] Example 1.

[0024] Preferably, the turbocharger rotor includes a first rotor structure 100, a second rotor structure 200 and an intermediate structure 300, wherein the first rotor structure 100 and the second rotor structure 200 are respectively arranged on both sides of the intermediate structure 300, wherein:

[0025] The middle structure 300 has a built-in transmission shaft (not shown in the figure);

[0026] The first rotor structure 100 includes a first rotor body 110 and a plurality of first special-shaped blades 120. One end of the transmission shaft is in transmission connection with one side of the first rotor body 110. The first special-shaped blades 120 are located on the other side of the first rotor body 110.

[0027] The second rotor structure 200 includes a second rotor body 210 and a plurality of second special-shaped blades 220. The other end of the transmission shaft is in transmission connection with one side of the second rotor body 210. The second special-shaped blades 220 are located on the other side of the second rotor body 210.

[0028] The bending angle of the second special-shaped blade 220 is greater than the bending angle of the first special-shaped blade 120, that is, the bending angle of the second end 222 of the second special-shaped blade relative to the first end 221 of the second special-shaped blade is greater than the bending angle of the second end 122 of the first special-shaped blade relative to the first end 121 of the first special-shaped blade; so that the second ends 222 of the second special-shaped blades 220 form a spatial combination form that is approximately adjacent to each other (but not actually in contact with each other), so that when the multiple second special-shaped blades 220 are simultaneously impacted by the airflow, they can not only maximize the airflow contact area, but also guide the airflow along the special-shaped surface of the second special-shaped blade 220 with a higher bending angle in the direction close to the second rotor body 210.

[0029] Among them, the first special-shaped blade 120 is provided with a first special-shaped blade first end 121 and a first special-shaped blade second end 122, the first special-shaped blade first end 121 and the first special-shaped blade second end 122 are integrally formed, the first special-shaped blade first end 121 is partially inscribed in the first rotor body 110, and the first special-shaped blade first end 121 is fixedly connected to the first rotor body 110, the second special-shaped blade 220 is provided with a second special-shaped blade first end 221 and a second special-shaped blade second end 222, the second special-shaped blade first end 221 and the second special-shaped blade second end 222 are integrally formed, the second special-shaped blade first end 221 is partially inscribed in the second rotor body 210, and the second special-shaped blade first end 221 is fixedly connected to the second rotor body 210.

[0030] The second rotor structure 200 further includes a plurality of third special-shaped blades 230 , which are smaller than the second special-shaped blades 220 . The third special-shaped blades 230 and the second special-shaped blades 220 are alternately arranged, so that the third special-shaped blades 230 further divert the airflow close to the second rotor body 210 .

[0031] Among them, the third special-shaped blade 230 is provided with a third special-shaped blade first end 231 and a third special-shaped blade second end 232, the third special-shaped blade first end 231 and the third special-shaped blade second end 232 are integrally formed, the third special-shaped blade first end 231 is partially inscribed in the second rotor body 210, and the third special-shaped blade first end 231 is fixedly connected to the second rotor body 210.

[0032] The first special-shaped blades 120 are distributed in an axisymmetric shape relative to (the axial direction of) the transmission shaft, and the second special-shaped blades 220 are distributed in an axisymmetric shape relative to (the axial direction of) the transmission shaft, so as to evenly disperse the airflow.

[0033] The third special-shaped blades 230 are distributed in an axisymmetric manner relative to (the axial direction of) the transmission shaft so as to further evenly disperse the airflow.

[0034] The intermediate structure 300 includes an intermediate ring 310 and (two) lateral docking pieces 320 . The lateral docking pieces 320 are fixedly connected to (the circumference of) the intermediate ring 310 so as to dock with external structures such as a gas transmission channel.

[0035] The lateral docking member 320 is provided with a docking member body 321 , and an end surface of the docking member body 321 has a docking groove 322 and (two) docking holes 323 , and the docking groove 322 is located between the docking holes 323 .

[0036] It is worth mentioning that the technical features such as the specific bending angle of the second end 222 of the second special-shaped blade relative to the first end 221 of the second special-shaped blade involved in the present utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement method of these technical features can be selected according to conventional methods in the field, and should not be regarded as the inventive point of the present utility model patent. The present utility model patent will not be further elaborated.

[0037] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A turbocharger rotor, characterized in that: It includes a first rotor structure, a second rotor structure and an intermediate structure, wherein the first rotor structure and the second rotor structure are respectively arranged on both sides of the intermediate structure, wherein: The middle structure has a drive shaft built into it; The first rotor structure includes a first rotor body and a plurality of first special-shaped blades, one end of the transmission shaft is transmission-connected to one side of the first rotor body, and the first special-shaped blades are located on the other side of the first rotor body; The second rotor structure includes a second rotor body and a plurality of second special-shaped blades, the other end of the transmission shaft is transmission-connected to one side of the second rotor body, and the second special-shaped blades are located on the other side of the second rotor body; The bending angle of the second special-shaped blade is greater than the bending angle of the first special-shaped blade.

2. The turbocharger rotor according to claim 1, characterized in that: The first special-shaped blade is provided with a first special-shaped blade first end and a first special-shaped blade second end, the first special-shaped blade first end and the first special-shaped blade second end are integrally formed, the first special-shaped blade first end is partially inscribed in the first rotor body, and the first special-shaped blade first end is fixedly connected to the first rotor body; The second special-shaped blade is provided with a second special-shaped blade first end and a second special-shaped blade second end, the second special-shaped blade first end and the second special-shaped blade second end are integrally formed, the second special-shaped blade first end is partially inscribed in the second rotor body, and the second special-shaped blade first end is fixedly connected to the second rotor body.

3. The turbocharger rotor according to claim 1, characterized in that The second rotor structure further includes a plurality of third special-shaped blades, which are smaller than the second special-shaped blades, and the third special-shaped blades and the second special-shaped blades are arranged alternately.

4. The turbocharger rotor according to claim 3, characterized in that The third special-shaped blade is provided with a third special-shaped blade first end and a third special-shaped blade second end, the third special-shaped blade first end and the third special-shaped blade second end are integrally formed, the third special-shaped blade first end is partially inscribed in the second rotor body, and the third special-shaped blade first end is fixedly connected to the second rotor body.

5. The turbocharger rotor according to claim 1, characterized in that The intermediate structure comprises an intermediate ring and a lateral butt joint piece, and the lateral butt joint piece is fixedly connected to the intermediate ring.

Images