Airflow adjusting assembly, nozzle ring, turbocharger and vehicle

Abstract

The invention discloses an airflow adjusting assembly, a nozzle ring, a turbocharger and a vehicle. Belongs to the technical field of vehicles and comprises a shifting fork and a blade, the blade is mounted in a mounting through hole of the shifting fork through a connector, a limiting column of the shifting fork comprises a limiting section and a riveting section which are connected, the limiting section can limit the connector in the circumferential direction of the mounting through hole, and after the riveting section is riveted into a riveting piece, the riveting piece is fixed to the connector. The riveting pressing piece can limit the connector in the circumferential direction and the axial direction of the mounting through hole, so that the connecting strength of the shifting fork and the blade is improved, the risk that the blade shakes relative to the shifting fork and fails in connection is reduced, the shifting fork and the blade are easy and convenient to assemble, the reliability is high, and the service life is long.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an airflow adjustment component, a nozzle ring, a turbocharger and a vehicle. Background Art

[0002] The fork and blades of the nozzle ring are usually connected by welding processes (such as TIG welding and laser welding). Welding has high requirements on the size of the parts fitting. If there is a large gap, it will lead to poor welding, making the connection between the fork and the blade easy to loosen, causing displacement deflection between the fork and the blade, affecting the reliability and service life of the fork and the blade.

[0003] In the related art, the axial holes of the fork and the blade at the mating point must be machined, which increases the cost. In addition, there will be a certain amount of spark splashing during welding, and the welding slag attached to the nozzle ring will cause the fork or blade to get stuck, resulting in failure of the nozzle ring. Summary of the invention

[0004] The present invention aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, the present invention provides an airflow adjustment assembly, the assembly of the fork and the blades is simple and convenient, and has high reliability and service life.

[0005] The present invention also provides a nozzle ring having the airflow adjustment component.

[0006] The present invention also provides a turbocharger having the nozzle ring.

[0007] The present invention also provides a vehicle having the turbocharger.

[0008] According to an embodiment of the first aspect of the present invention, the airflow regulating assembly comprises: a shift fork, the shift fork comprises: a shift fork body and a limiting column, the shift fork body has a mounting through hole, the limiting column comprises a connected limiting section and a riveting section, the limiting section is arranged inside the mounting through hole and connected to the inner wall of the mounting through hole, and the riveting section is arranged outside the mounting through hole; a blade, the blade comprises: a blade body and a connecting column, one end of the connecting column is connected to the blade body, and the other end of the connecting column has a connecting head; wherein, the connecting head is passed through the mounting through hole, the limiting section abuts against the connecting head, and the riveting section is riveted in a direction close to the mounting through hole to form a riveting sheet, and at least a portion of the riveting sheet is on the axial outside of the mounting through hole and is respectively fitted with the shift fork body and the connecting head.

[0009] According to the airflow regulating assembly of the embodiment of the present invention, the blade is installed in the mounting through hole of the fork through a connecting head. The limiting column of the fork includes a connected limiting section and a riveted section. The limiting section can limit the connecting head in the circumferential direction of the mounting through hole. After the riveted section is riveted into a riveted sheet, the riveted sheet can limit the connecting head in the circumferential and axial directions of the mounting through hole to improve the connection strength between the fork and the blade, and reduce the risk of the blade shaking relative to the fork and the connection failure. The fork and the blade are simple and convenient to assemble, and have high reliability and service life.

[0010] According to some embodiments of the present invention, the riveting section is located on a side of the mounting through hole away from the blade body.

[0011] According to some embodiments of the present invention, the connector has a mating plane, the mating plane is opposite to the hole wall of the mounting through hole, and the limiting section abuts against the mating plane.

[0012] According to some embodiments of the present invention, there are multiple limit columns, and the multiple limit columns are arranged at intervals along the circumferential direction of the mounting through hole.

[0013] According to some embodiments of the present invention, in the axial direction of the mounting through hole, one end of the fork body abuts against the connecting column, and the other end of the fork body is flush with the connecting head.

[0014] According to some embodiments of the present invention, the riveting section has a weakened hole, and the weakened hole extends along the riveting direction.

[0015] According to some embodiments of the present invention, the fork and the blade are both integrally formed parts formed by metal injection molding.

[0016] The nozzle ring according to the second aspect of the embodiment of the present invention includes the above-mentioned airflow adjustment component.

[0017] According to the nozzle ring of the embodiment of the present invention, its blades are installed in the mounting through hole of the fork through a connecting head. The limiting column of the fork includes a connecting section and a riveting section that are connected. The limiting section can limit the connecting head in the circumferential direction of the mounting through hole. After the riveting section is riveted into a riveting sheet, the riveting sheet can limit the connecting head in the circumferential and axial directions of the mounting through hole, so as to improve the connection strength between the fork and the blades, reduce the risk of the blades shaking relative to the fork and the connection failure, and thus help to improve the reliability and service life of the gas nozzle ring.

[0018] A turbocharger according to an embodiment of the third aspect of the present invention comprises the above-mentioned nozzle ring.

[0019] According to the turbocharger of the embodiment of the present invention, the blades are installed in the mounting through hole of the shift fork through a connecting head. The limiting column of the shift fork includes a connecting section and a riveting section that are connected. The limiting section can limit the connecting head in the circumferential direction of the mounting through hole. After the riveting section is riveted into a riveting sheet, the riveting sheet can limit the connecting head in the circumferential and axial directions of the mounting through hole, so as to improve the connection strength between the shift fork and the blades, reduce the risk of the blades shaking relative to the shift fork and the connection failure, and thus help to improve the reliability and service life of the gas turbocharger.

[0020] A vehicle according to an embodiment of the fourth aspect of the present invention comprises the above-mentioned turbocharger.

[0021] According to the vehicle of the embodiment of the present invention, its blade is installed in the mounting through hole of the shift fork through a connecting head. The limiting column of the shift fork includes a connected limiting section and a riveted section. The limiting section can limit the connecting head in the circumferential direction of the mounting through hole. After the riveted section is riveted into a riveted sheet, the riveted sheet can limit the connecting head in the circumferential and axial directions of the mounting through hole, so as to improve the connection strength between the shift fork and the blade, reduce the risk of the blade shaking relative to the shift fork and the connection failure, and thus help to improve the reliability and service life of the gas vehicle.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of a shift fork according to an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of a blade according to an embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the assembly of the fork and the blade according to an embodiment of the present invention Figure 1 ;

[0026] Figure 4 Schematic diagram of the assembly of the fork and the blade according to an embodiment of the present invention Figure 2 ;

[0027] Figure 5 Schematic diagram of the assembly of the fork and the blade according to an embodiment of the present invention Figure 3 ;

[0028] Figure 6 is a schematic diagram of a nozzle ring according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] fork 1; fork body 11; mounting through hole 111; limiting column 12; limiting section 121; riveting section 122; weakening hole 1221; riveting sheet 122a;

[0031] Blade 2; blade body 21; connecting column 22; connecting head 221; matching plane 2211; connecting column body 222; shaft shoulder 223;

[0032] Airflow adjustment assembly 10;

[0033] Mounting plate 20; rear cover 30; settlement sleeve 40; dial plate 50; annular air inlet 60;

[0034] Nozzle ring 100 . DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the present invention, it is necessary to understand that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The airflow adjustment assembly 10 , the nozzle ring 100 , the turbocharger and the vehicle according to the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] Reference Figure 1-Figure 5As shown, the airflow adjustment assembly 10 according to the first embodiment of the present invention comprises: a fork 1 and a blade 2, the fork 1 comprises: a fork body 11 and a limiting column 12, the fork body 11 has a mounting through hole 111, the limiting column 12 comprises a connected limiting section 121 and a riveting section 122, the limiting section 121 is arranged inside the mounting through hole 111 and connected to the inner wall of the mounting through hole 111, and the riveting section 122 is arranged outside the mounting through hole 111. The blade 2 comprises: a blade body 21 and a connecting column 22, one end of the connecting column 22 is connected to the blade body 21, and the other end of the connecting column 22 has a connector 221. Among them, the connecting head 221 is penetrated through the mounting hole 111, the limiting section 121 abuts against the connecting head 221, and the riveting section 122 is riveted in the direction close to the mounting hole 111 to form a riveting sheet 122a, at least part of the riveting sheet 122a is on the axial outside of the mounting hole 111 and fits with the fork body 11 and the connecting head 221 respectively.

[0041] Specifically, the blade 2 can be assembled with the fork 1 at a set angle and fixed as a whole. The fork 1 can be used to move the blade 2 to change the guide angle of the blade 2, thereby enabling the airflow adjustment component 10 to control parameters such as gas flow rate, pressure and direction.

[0042] The fork 1 includes: a fork body 11 and a limiting column 12. The fork body 11 can be a rod-shaped structure, and the limiting column 12 can be a columnar structure. The fork body 11 is connected to the limiting column 12. The fork body 11 has a mounting through hole 111. The mounting through hole 111 can be a circular hole or a polygonal hole structure. The limiting column 12 includes a connected limiting section 121 and a riveting section 122. The limiting section 121 is arranged inside the mounting through hole 111 and is connected to the inner wall of the mounting through hole 111. That is, the limiting section 121 protrudes relative to the inner wall of the mounting through hole 111 toward the axial direction of the mounting through hole 111 to form a limit in the circumferential direction of the mounting through hole 111. The riveting section 122 is arranged outside the mounting through hole 111 to facilitate riveting of the riveting section 122.

[0043] The blade 2 includes: a blade body 21 and a connecting column 22. The blade body 21 can be a plate-like structure, and the blade body 21 can be used for gas diversion. The connecting column 22 can be a columnar structure. One end of the connecting column 22 is connected to the blade body 21, and the other end of the connecting column 22 has a connecting head 221. The connecting column 22 can be connected to the mounting through hole 111 of the fork body 11 through the connecting head 221.

[0044] When the fork 1 and the blade 2 are assembled into the airflow adjustment component 10, the connector 221 is passed through the mounting hole 111, and the limiting section 121 abuts against the connector 221. In the circumferential direction of the mounting hole 111, the limiting section 121 can limit the connector 221 to prevent the connector 221 from rotating in the mounting hole 111, thereby facilitating improving the stability of the connection between the fork 1 and the blade 2.

[0045] The riveting section 122 is riveted in the direction close to the mounting through hole 111 to form a riveting sheet 122a. The riveting operation is convenient and efficient, and no splashing welding slag is generated. At least part of the riveting sheet 122a is on the axial outside of the mounting through hole 111 and fits with the shift fork body 11 and the connector 221 respectively. In the axial direction of the mounting through hole 111, the part of the riveting sheet 122a that fits with the connector 221 can limit the connector 221 to prevent the connector 221 from moving in the axial direction of the mounting through hole 111. When the connector 221 has a tendency to rotate in the circumferential direction of the mounting through hole 111, the part of the connector 221 that fits with the riveting sheet 122a is also subject to the friction of the riveting sheet 122a to further limit the rotation of the connector 221 in the mounting through hole 111. At the same time, the riveting plate 122a is also in contact with the fork body 11. When the riveting plate 122a is subjected to the force of the connecting head 221, the riveting plate 122a can transmit force to the fork body 11 through the part in contact with the fork body 11, so as to improve the load resistance of the riveting plate 122a and improve the reliability and service life of the riveting plate 122a.

[0046] According to the airflow regulating assembly 10 of the embodiment of the present invention, the blade 2 is installed in the mounting through hole 111 of the fork 1 through the connecting head 221. The limiting column 12 of the fork 1 includes a connected limiting section 121 and a riveting section 122. The limiting section 121 can limit the connecting head 221 in the circumferential direction of the mounting through hole 111. After the riveting section 122 is riveted into a riveting sheet 122a, the riveting sheet 122a can limit the connecting head 221 in the circumferential and axial directions of the mounting through hole 111, so as to improve the connection strength between the fork 1 and the blade 2, and reduce the risk of the blade 2 shaking relative to the fork 1 and the connection failure. The fork 1 and the blade 2 are simple and convenient to assemble, and have high reliability and service life.

[0047] In some embodiments of the present invention, reference Figure 1-Figure 4 As shown, the riveting section 122 is located on the side of the mounting through hole 111 away from the blade body 21, that is, the riveting section 122 extends out of the mounting through hole 111 toward the side away from the blade body 21, so that the riveting section 122 can be riveted on the side of the mounting through hole 111 away from the blade body 21, so as to facilitate the riveting operation and reduce the risk of interference between the riveting equipment and the blade body 21.

[0048] In some embodiments of the present invention, reference Figure 1-Figure 4 As shown, the connector 221 has a mating plane 2211, which is opposite to the hole wall of the mounting through hole 111, and the limiting section 121 abuts against the mating plane 2211, that is, the limiting section 121 and the mating plane 2211 can be an interference fit, and the limiting section 121 is pressed against the mating plane 2211, so that the limiting section 121 can stably and reliably limit the mating plane 2211 in the circumferential direction of the mounting through hole 111, thereby reducing the risk of the connector 221 rotating in the mounting through hole 111.

[0049] In some embodiments, the limit section 121 has an arc-shaped limit surface, which abuts against the mating plane 2211. When the connector 221 is assembled into the mounting hole 111, the arc-shaped limit surface and the mating plane 2211 are squeezed and deformed against each other to form a meshing structure at the contact point between the two, thereby reducing the risk of the connector 221 rotating in the mounting hole 111.

[0050] In other embodiments, the limiting section 121 has a planar limiting surface, which abuts against the mating plane 2211. When the connecting head 221 is assembled into the mounting hole 111, the planar limiting surface and the mating plane 2211 form an area contact and have a larger contact area, thereby reducing the risk of the connecting head 221 rotating in the mounting hole 111.

[0051] It should be noted that the connector 221 can be constructed as a non-cylindrical structure, and the connector 221 can adopt a non-center symmetric design to reduce the risk of the connector 221 rotating in the mounting through hole 111.

[0052] In some embodiments of the present invention, there are multiple limit columns 12, and the multiple limit columns 12 are arranged at intervals along the circumferential direction of the mounting through hole 111. The provision of multiple limit columns 12 can enhance the connection strength between the fork 1 and the blade 2, and reduce the risk of the blade 2 rotating, shaking, and connection failure relative to the fork 1.

[0053] Reference Figure 1 and Figure 3 As shown, there are two limit posts 12, and the two limit posts 12 are arranged 180° apart in the circumferential direction of the mounting through hole 111, that is, the two limit posts 12 are opposite to each other in the radial direction of the mounting through hole 111, and the two limit posts 12 can evenly disperse the load transmitted from the blade 2 to the fork 1, thereby improving the reliability of the connection between the blade 2 and the fork 1.

[0054] In some unshown embodiments of the present invention, the number of the limiting columns 12 can also be three, four, five, etc., and the plurality of limiting columns 12 can be arranged at equal or unequal angles along the circumferential direction of the mounting through hole 111, and the position of the limiting column 12 can be arranged corresponding to the position of the mounting through hole 111 that is subject to a greater load.

[0055] In some embodiments of the present invention, reference Figure 2 and Figure 5 As shown, in the axial direction of the mounting through hole 111 , one end of the fork body 11 abuts against the connecting column 22 , and the other end of the fork body 11 is flush with the connecting head 221 .

[0056] Specifically, the connecting column 22 includes: a connecting column body 222 and a connecting head 221, one end of the connecting column body 222 is connected to the blade body 21, and the other end of the connecting column body 222 is connected to the connecting head 221, and a shoulder 223 is formed at the connection between the connecting column body 222 and the connecting head 221. After the connecting head 221 is inserted into the mounting through hole 111, one end of the fork body 11 abuts against the shoulder 223 in the axial direction of the mounting through hole 111 to form a positioning before riveting, and the fork body 11 is The other end is flush with the connecting head 221, so that when the riveting section 122 is riveted into the riveting sheet 122a, the position where the riveting sheet 122a contacts the fork body 11 and the position where the riveting sheet 122a contacts the connecting head 221 are located in the same plane, and the riveting sheet 122a can form a flat plate structure, which is beneficial to reduce the irregular deformation of the riveting section 122 when it is riveted into the riveting sheet 122a, and reduce the risk of cracks and damage to the riveting sheet 122a, which is beneficial to improve the yield rate of the airflow regulation component 10.

[0057] In some embodiments of the present invention, reference Figure 1 As shown, the riveting section 122 has a weakened hole 1221, which extends along the riveting direction. The weakened hole 1221 can be a blind hole structure. The weakened hole 1221 can reduce the rigidity of the riveting section 122 to facilitate the riveting of the riveting section 122. At the same time, when the riveting section 122 is riveted, the weakened hole 1221 can allow the deformed material of the riveting section 122 to have sufficient deformation space, thereby avoiding the aggregation of deformed material of the riveting section 122 during the riveting process, and reducing the risk of damage to the riveting section 122 during riveting.

[0058] In some embodiments of the present invention, the fork 1 and the blade 2 are both integrally formed parts by metal injection molding (MIM). Metal injection molding has the advantage of relatively high dimensional accuracy. At the same time, the fork 1 and the blade 2 do not need to be machined, so as to facilitate the production of the fork 1 and the blade 2.

[0059] It should be noted that the materials of the fork 1 and the blade 2 can be selected as needed. The airflow adjustment assembly 10 can be used for a turbocharger of a vehicle. The turbocharger uses the energy in the exhaust gas discharged by the engine to drive the turbine, and the turbine drives the coaxial compressor to increase the engine intake pressure, so that more fuel can be used to do work per unit time, thereby improving the engine performance and realizing engine miniaturization. Since the exhaust gas temperature of the engine is very high, the exhaust gas temperature of the gasoline engine can reach 1050°C, which puts forward very high requirements on the high temperature strength, fatigue strength and corrosion resistance of the materials of each sub-part of the turbine. Since the blade 2 is directly under the impact of the exhaust gas, the high temperature strength requirements of the blade 2 for the material are higher than those of the fork 1. Therefore, the blade 2 can use high temperature resistant materials, such as nickel-based alloys, and these materials often have poor deformation ability at room temperature, and even cannot be riveted. In the embodiment of the present invention, the parts of the fork 1 and the blade 2 that are deformed during riveting are mainly the riveting section 122 of the fork 1, and the deformation of the connecting head 221 of the blade 2 is relatively slight. Therefore, it will not affect the selection of the material of the blade 2, and the smooth riveting of the fork 1 and the blade 2 can be ensured.

[0060] In some embodiments of the present invention, the method of assembling the airflow adjustment assembly 10 includes the following steps:

[0061] Step S1, inserting the connecting column into the mounting through hole at a side of the mounting through hole away from the riveting section.

[0062] Specifically, refer to Figure 3 and Figure 4 As shown, the connecting column 22 is inserted into the mounting through hole 111 at a side of the mounting through hole 111 away from the riveting section 122 to complete the pre-assembly before riveting.

[0063] Step S2, the riveting section rivets in a direction close to the mounting through hole to form a riveting sheet.

[0064] Specifically, refer to Figure 4 and Figure 5 As shown, the riveting section 122 is riveted toward the mounting through hole 111 to form a riveting sheet 122a. At least a portion of the riveting sheet 122a is axially outside the mounting through hole 111 and fits the fork body 11 and the connector 221 respectively.

[0065] According to the assembly method of the airflow regulating assembly 10 of the embodiment of the present invention, the assembly of the airflow regulating assembly 10 is simple and convenient, and has high reliability and service life.

[0066] The nozzle ring 100 according to the second aspect of the present invention includes the airflow adjustment component 10 of the above embodiment. The number of the airflow adjustment components 10 can be multiple, and the multiple airflow adjustment components 10 can adjust the flow rate, pressure, direction and other parameters of the air inlet of the nozzle ring 100.

[0067] Reference Figure 6 As shown, the nozzle ring 100 also includes: a mounting plate 20, a rear cover 30, a settling sleeve 40 and a toggle plate 50, wherein the mounting plate 20, the rear cover 30 and the toggle plate 50 are all annular structures, the mounting plate 20 and the rear cover 30 are coaxially connected through the settling sleeve 40, the toggle plate 50 is rotatably connected to the axial end surface of the mounting plate 20 away from the rear cover 30, an annular air inlet 60 is formed between the mounting plate 20 and the rear cover 30, and a plurality of airflow adjustment components 10 are arranged at intervals along the circumferential direction of the mounting plate 20. The number of airflow adjustment components 10 may be nine or more than nine, and for each An airflow adjustment component 10 is provided, wherein the blade body 21 of the blade 2 is arranged at the annular air inlet 60, the connecting column 22 of the blade 2 is rotatably penetrated through the corresponding axial hole of the mounting plate 20, one end of the fork 1 is fixedly connected to the blade 2, and the other end of the fork 1 can be embedded in the corresponding groove of the dial plate 50 to realize the rotatable connection between the fork 1 and the dial plate 50. When the dial plate 50 rotates an angle in the circumferential direction, all the blades 2 will be driven to rotate synchronously through the fork 1, so that all the blades 2 can be driven to work through a control mechanism (such as an electric control actuator).

[0068] When the nozzle ring 100 is used in a turbocharger of a vehicle, the turbine can be arranged in the nozzle ring 100, and the exhaust gas generated by the engine can enter the nozzle ring 100 through the annular air inlet 60 to drive the turbine to rotate and do work. The turbocharger can drive the dial 50 to rotate through the control mechanism, so that the dial 50 drives the blade 2 to rotate through the fork 1 to change the position of each blade 2 in the annular air inlet 60, thereby adjusting the flow rate, pressure, direction and other parameters of the exhaust gas when passing through the annular air inlet 60, so that the turbocharger can realize the function of a variable geometry turbocharger (VGT, Variable Geometry Turbine), so as to increase the low-speed torque of the engine, expand the available speed range of the engine, change the low-speed economy, and reduce the smoke density of the engine exhaust.

[0069] In addition, in addition to being used in turbochargers, the nozzle ring 100 can also be used in new energy fields such as fuel cell air compressors.

[0070] According to the nozzle ring 100 of the embodiment of the present invention, its blade 2 is installed in the mounting through hole 111 of the fork 1 through the connecting head 221, and the limiting column 12 of the fork 1 includes a limiting section 121 and a riveting section 122 connected to each other. The limiting section 121 can limit the connecting head 221 in the circumferential direction of the mounting through hole 111. After the riveting section 122 is riveted into a riveting sheet 122a, the riveting sheet 122a can limit the connecting head 221 in the circumferential and axial directions of the mounting through hole 111, so as to improve the connection strength between the fork 1 and the blade 2, reduce the risk of the blade 2 shaking relative to the fork 1 and the connection failure, and thus help to improve the reliability and service life of the gas nozzle ring 100.

[0071] According to the turbocharger of the third aspect of the present invention, including the nozzle ring 100 of the above embodiment, the turbocharger can be used in vehicles so that when the vehicle is working in a high-speed area, the exhaust gas utilization rate is good and the exhaust back pressure is low. When the vehicle is working in a low-speed and high-load area, the opening of the annular air inlet 60 can be reduced by adjusting the blades 2, thereby increasing the flow rate of the exhaust gas entering the nozzle ring 100 and increasing the pressure ratio, thereby obtaining better low-speed responsiveness.

[0072] According to the turbocharger of the embodiment of the present invention, its blade 2 is installed in the mounting through hole 111 of the fork 1 through the connecting head 221, and the limiting column 12 of the fork 1 includes a limiting section 121 and a riveting section 122 connected to each other. The limiting section 121 can limit the connecting head 221 in the circumferential direction of the mounting through hole 111. After the riveting section 122 is riveted into a riveting sheet 122a, the riveting sheet 122a can limit the connecting head 221 in the circumferential and axial directions of the mounting through hole 111, so as to improve the connection strength between the fork 1 and the blade 2, reduce the risk of the blade 2 shaking relative to the fork 1 and the connection failure, and thus help to improve the reliability and service life of the gas turbocharger.

[0073] A vehicle according to an embodiment of a fourth aspect of the present invention comprises the turbocharger of the above embodiment.

[0074] According to the vehicle of the embodiment of the present invention, its blade 2 is installed in the mounting through hole 111 of the fork 1 through the connecting head 221, and the limiting column 12 of the fork 1 includes a connected limiting section 121 and a riveting section 122, and the limiting section 121 can limit the connecting head 221 in the circumferential direction of the mounting through hole 111. After the riveting section 122 is riveted into a riveting sheet 122a, the riveting sheet 122a can limit the connecting head 221 in the circumferential and axial directions of the mounting through hole 111, so as to improve the connection strength between the fork 1 and the blade 2, reduce the risk of the blade 2 shaking relative to the fork 1 and the connection failure, and thus help to improve the reliability and service life of the gas vehicle.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0076] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An airflow adjustment component, characterized in that: include: A shift fork (1), the shift fork (1) comprising: a shift fork body (11) and a limiting column (12), the shift fork body (11) having a mounting through hole (111), the limiting column (12) comprising a connected limiting section (121) and a riveting section (122), the limiting section (121) being arranged inside the mounting through hole (111) and connected to the inner wall of the mounting through hole (111), and the riveting section (122) being arranged outside the mounting through hole (111); A blade (2), the blade (2) comprising: a blade body (21) and a connecting column (22), one end of the connecting column (22) being connected to the blade body (21), and the other end of the connecting column (22) having a connecting head (221); The connecting head (221) is inserted into the mounting through hole (111), the limiting section (121) is in contact with the connecting head (221), the riveting section (122) is riveted in a direction close to the mounting through hole (111) to form a riveting sheet (122a), and at least a portion of the riveting sheet (122a) is axially outside the mounting through hole (111) and is respectively in contact with the shift fork body (11) and the connecting head (221).

2. The airflow adjustment assembly according to claim 1, characterized in that: The riveting section (122) is located on a side of the mounting through hole (111) away from the blade body (21).

3. The airflow adjustment assembly according to claim 1, characterized in that: The connecting head (221) has a matching plane (2211), the matching plane (2211) is opposite to the hole wall of the mounting through hole (111), and the limiting section (121) abuts against the matching plane (2211).

4. The airflow adjustment assembly according to claim 1, characterized in that: The number of the limiting columns (12) is plural, and the plurality of limiting columns (12) are arranged at intervals along the circumferential direction of the mounting through hole (111).

5. The airflow adjustment assembly according to claim 1, characterized in that: In the axial direction of the mounting through hole (111), one end of the fork body (11) abuts against the connecting column (22), and the other end of the fork body (11) is flush with the connecting head (221).

6. The airflow adjustment assembly according to claim 1, characterized in that: The riveting section (122) has a weakened hole (1221), and the weakened hole (1221) extends along the riveting direction.

7. The airflow adjustment assembly according to any one of claims 1 to 6, characterized in that: The shift fork (1) and the blade (2) are both integrally formed parts formed by metal injection molding.

8. A nozzle ring, characterized in that: The invention comprises an airflow adjustment assembly according to any one of claims 1 to 7.

9. A turbocharger, characterized in that: Comprising a nozzle ring according to claim 8.

10. A vehicle, characterized in that: Comprising a turbocharger according to claim 9.

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