Variable-section turbocharger nozzle ring

Abstract

The turbocharger nozzle ring with the variable section comprises an installation frame, a stabilizing mechanism, a connecting mechanism and a protection mechanism, the stabilizing mechanism comprises a limiting groove, a rotating disc is arranged in the limiting groove, the upper side of the rotating disc is fixedly connected with a first connecting shaft, and the upper side of the first connecting shaft is fixedly connected with blades; the lower side of the rotating disc is fixedly connected with a second connecting shaft, and the lower side of the second connecting shaft is fixedly connected with a connecting piece. Through the arrangement of the stabilizing mechanism, the sliding connection design of the limiting groove and the rotating disc and the matching of the annular sliding groove and the annular sliding strip, the stability of the blade in the working process is greatly improved, and when an engine runs, especially when an automobile engine is frequently started, stopped, accelerated and decelerated, the stability of the blade is greatly improved. And the blade can stably bear the impact of waste gas under the working conditions that a ship engine operates under complex sea conditions or the like, so that the problem of aggravated blade abrasion caused by vibration and displacement is avoided, and the service life of the blade is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to turbocharger nozzle ring technical field, concretely is variable cross section turbocharger nozzle ring. BACKGROUND

[0002] The turbocharger nozzle ring is an important component in the turbocharger, which is located at the inlet end of the turbine, that is, the exhaust gas discharged by the engine enters the inlet of the turbocharger, it is an annular structure, which surrounds the outside of the turbine blade, and is usually composed of multiple blades, the shape and angle of the blades are carefully designed, the blades generally have a specific curved shape, and a series of narrow channels are formed between the blades, the size, shape and angle of the channels are crucial to the performance of the turbocharger.

[0003] The nozzle ring is provided on the turbocharger, and the main function of the nozzle ring is to partially convert the pressure energy and thermal energy of the exhaust gas into kinetic energy, in the existing turbocharger, the nozzle ring is a key component, and its core function is to partially convert the pressure energy and thermal energy contained in the exhaust gas discharged by the engine into kinetic energy, so as to guide the exhaust gas to flow at high speed and with precise directionality to the turbine blade, thereby driving the turbine to rotate and driving the compressor to realize intake supercharging, this process is of great significance to improve the overall performance of the engine, however, the traditional turbocharger has certain limitations in design, especially the turbine blade part, although most of the current turbine blades are numerous, they lack special stable structure design, in the actual operation process, for example, under the working conditions of frequent start-stop and acceleration-deceleration of automobile engine, or under the operation of marine engine in complex sea conditions, the turbine blade will be subjected to uneven airflow impact and centrifugal force generated by its high-speed rotation due to lack of effective stable support, resulting in obvious vibration and displacement of the turbine blade, which not only accelerates the wear of the blade itself and reduces its service life, but also affects the working efficiency and stability of the turbocharger, and then the power output of the vehicle is not timely, power interruption and other situations, in ship operation, it may cause unstable speed, power shortage and other problems, and the practicability is poor, therefore, in order to solve the above problems, the variable cross section turbocharger nozzle ring is proposed. CONTENT OF THE UTILITY MODEL

[0004] The utility model mainly solves the technical problems existing in the prior art, and provides a variable cross section turbocharger nozzle ring.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: the variable cross section turbocharger nozzle ring, including mounting frame, stabilizing mechanism, connecting mechanism and protection mechanism, the stabilizing mechanism includes limit groove, the inside of limit groove is provided with the carousel, the upper side of carousel is fixedly connected with first connecting shaft, the upper side of first connecting shaft is fixedly connected with the vane, the lower side of carousel is fixedly connected with second connecting shaft, the lower side of second connecting shaft is fixedly connected with the connecting piece, the side of connecting piece is rotatably connected with the rotating ring, the vane is arranged at the side of mounting frame, is provided with several, is in the circumferential array at the side of mounting frame.

[0006] Preferably, the limit groove is opened in the inside of the mounting frame, the carousel is slidably connected with the limit groove, the limit groove limits the carousel, so that the vane can rotate more stably and is not easy to shake.

[0007] Preferably, the inside of the mounting frame is opened with an annular sliding slot, the inside of the annular sliding slot is provided with an annular sliding strip, the annular sliding strip is fixedly connected with the rotating ring, the annular sliding strip is limited in the inside position of the sliding sliding slot, and the sliding sliding strip stably handles the rotating ring.

[0008] Preferably, the annular sliding strip is slidably connected with the annular sliding slot, the annular sliding strip is arranged on the upper side of the rotating ring, the annular sliding strip is limited in the annular sliding slot and stably handles the rotating ring, so that the rotating ring can rotate more stably.

[0009] Preferably, the connecting mechanism includes a connecting ring, the connecting ring is fixed on one side of the rotating ring, the inside of the connecting ring is opened with a mounting slot, and the inside of the mounting slot is fixedly connected with a rubber block. The rubber block is provided with four, is arranged at the four edge positions in the inside of the connecting ring, and the transmission structure can be connected with the connecting ring, so as to drive the vane to rotate.

[0010] Preferably, the protection mechanism includes a first rubber pad, the first rubber pad is fixedly connected to the inside of the mounting frame, the outside of the mounting frame is fixedly connected with a second rubber pad, the surface of the second rubber pad is opened with an anti-skid groove, the anti-skid groove is opened with a plurality of, and is circumferentially arranged on the outer surface of the second rubber pad.

[0011] Compared with the prior art, the utility model has the beneficial effects as follows:

[0012] 1, the utility model discloses the setting of stabilizing mechanism, the sliding connection design of limit groove and carousel and the cooperation of annular sliding slot and annular sliding strip greatly improve the stability of vane in the working process, when the engine is running, especially when the automobile engine is frequently started and stopped, accelerates and decelerates, or the ship engine is running under complex sea conditions, etc. Working conditions, the vane can stably withstand the impact of exhaust gas, avoids the problem that the vane abrasion aggravates due to vibration and displacement, effectively prolongs the service life of the vane. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a frontal view of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the present invention from the rear view.

[0016] Figure 3 This is a side view of the overall structure of this utility model;

[0017] Figure 4 This is a side view sectional diagram of the present invention.

[0018] In the diagram: 1. Mounting bracket; 2. Limiting groove; 3. Turntable; 4. First connecting shaft; 5. Blade; 6. Second connecting shaft; 7. Connecting piece; 8. Rotary ring; 9. Annular slide groove; 10. Annular slide bar; 11. Connecting ring; 12. Mounting groove; 13. Rubber block; 14. First rubber pad; 15. Second rubber pad; 16. Anti-slip groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4The variable cross-section turbocharger nozzle ring comprises a mounting frame 1, a stabilizing mechanism, a connecting mechanism and a protection mechanism, the stabilizing mechanism comprises a limiting groove 2, the inside of the limiting groove 2 is provided with a rotating disc 3, the upper side of the rotating disc 3 is fixedly connected with a first connecting shaft 4, the upper side of the first connecting shaft 4 is fixedly connected with a blade 5, the lower side of the rotating disc 3 is fixedly connected with a second connecting shaft 6, the lower side of the second connecting shaft 6 is fixedly connected with a connecting piece 7, one side of the connecting piece 7 is rotatably connected with a rotating ring 8, the limiting groove 2 is arranged in the inside of the mounting frame 1, the rotating disc 3 is slidably connected with the limiting groove 2, the inside of the mounting frame 1 is provided with an annular sliding groove 9, the inside of the annular sliding groove 9 is provided with an annular sliding strip 10, the annular sliding strip 10 is fixedly connected with the rotating ring 8, the annular sliding strip 10 is slidably connected with the annular sliding groove 9, the annular sliding strip 10 is arranged on the upper side of the rotating ring 8, the exhaust gas of the engine first impacts on the variable cross-section turbocharger nozzle ring, when the exhaust gas enters, the blade 5 is impacted, the blade 5 is fixedly connected with the rotating disc 3 through the first connecting shaft 4, and the rotating disc 3 is located in the limiting groove 2 in the inside of the mounting frame 1 and is slidably connected with the limiting groove 2, this design makes the blade 5 be able to be stabilized when being impacted by the exhaust gas, the limiting groove 2 effectively limits the movement range of the rotating disc 3, ensures the stability of the rotation of the blade 5 and avoids the shaking, thereby ensuring that the exhaust gas energy can be stably transmitted to the blade 5 and making the blade 5 be able to be stabilized according to the set angle; when the blade 5 rotates, the second connecting shaft 6 below the rotating disc 3 also rotates, the second connecting shaft 6 drives the connecting piece 7 to move, the connecting piece 7 is rotatably connected with the rotating ring 8, thereby the rotating action of the blade 5 is transmitted to the rotating ring 8, so that the rotating ring 8 also has a corresponding rotating trend, the upper side of the rotating ring 8 is fixedly connected with the annular sliding strip 10, the annular sliding strip 10 is located in the annular sliding groove 9 arranged in the inside of the mounting frame 1 and is slidably connected with the annular sliding groove 9, when the rotating ring 8 rotates, a plurality of rotating discs 3 and blades 5 are driven to rotate and adjust through the connecting piece 7, the annular sliding strip 10 slides in the annular sliding groove 9, the annular sliding groove 9 provides a stable sliding track for the annular sliding strip 10, further limits the displacement of the rotating ring 8, ensures that the rotating ring 8 can rotate stably and avoids affecting the working stability of the whole nozzle ring due to the shaking of the rotating ring 8, the sliding connection design of the limiting groove 2 and the rotating disc 3 and the cooperation of the annular sliding groove 9 and the annular sliding strip 10 greatly improve the stability of the blade 5 in the working process, when the engine operates, especially under the working conditions that the automobile engine frequently starts and stops, accelerates and decelerates or the ship engine operates under complex sea conditions, the blade 5 can stably bear the impact of the exhaust gas, avoids the problem that the blade 5 is severely worn due to vibration and displacement and effectively prolongs the service life of the blade 5.

[0021] In one aspect of the embodiment, the side of the rotating ring 8 is fixedly connected with a connecting ring 11, and a rubber block 13 is fixed in a mounting groove 12 inside the connecting ring 11; when it is necessary to adjust the angle or cross section of the blade 5, the external transmission structure is connected with the connecting ring 11, and through the buffering and friction force of the rubber block 13, the external power can be more stably transmitted to the rotating ring 8, so as to drive the blade 5 to be accurately adjusted in angle, and the variable control of the nozzle ring cross section is realized, so as to adapt to the requirements of the exhaust flow, flow speed and flow direction of the engine under different working conditions.

[0022] In one aspect of the embodiment, the protection mechanism on the mounting frame 1 comprises a first rubber pad 14 on the inner side and a second rubber pad 15 on the outer side, and a non-slip groove 16 on the second rubber pad 15, which can buffer and prevent slipping during installation, facilitate the installation of the nozzle ring on the turbocharger, and increase stability, and the second rubber pad 15 can prevent collision.

[0023] The working principle of the variable cross section turbocharger nozzle ring is as follows: in use, the side of the rotating ring 8 is fixedly connected with a connecting ring 11, and a rubber block 13 is fixed in a mounting groove 12 inside the connecting ring 11; when it is necessary to adjust the angle or cross section of the blade 5, the external transmission structure is connected with the connecting ring 11, and through the buffering and friction force of the rubber block 13, the external power can be more stably transmitted to the rotating ring 8; when the rotating ring 8 rotates, the connecting plate 7 drives the rotating disc 3 to rotate in the limiting groove 2, and finally drives the blade 5 to rotate and adjust the angle; when the exhaust gas passes through the blade 5 channel of the nozzle ring, the flow direction and speed of the exhaust gas will change; the main function of the nozzle ring is to partially convert the pressure energy and thermal energy of the exhaust gas into kinetic energy, so that the exhaust gas is high-speed and directional to the turbine blade; in this way, the exhaust gas can more effectively drive the turbine to rotate, and then drive the coaxial compressor to work, so as to realize the supercharging of the intake air.

[0024] Finally, it should be noted that: the above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A variable cross-section turbocharger nozzle ring comprising a mounting frame (1), a stabilizing mechanism, a connecting mechanism and a protection mechanism, characterized in that: The stable mechanism includes a limiting groove (2), the inside of the limiting groove (2) is provided with a rotating disc (3), the upper side of the rotating disc (3) is fixedly connected with a first connecting shaft (4), the upper side of the first connecting shaft (4) is fixedly connected with a blade (5), the lower side of the rotating disc (3) is fixedly connected with a second connecting shaft (6), the lower side of the second connecting shaft (6) is fixedly connected with a connecting piece (7), one side of the connecting piece (7) is rotatably connected with a rotating ring (8).

2. The variable cross-section turbocharger nozzle ring of claim 1, wherein: The limiting groove (2) is arranged in the inside of the mounting frame (1), and the rotating disc (3) is slidably connected with the limiting groove (2).

3. The variable cross-section turbocharger nozzle ring of claim 1, wherein: The inside of the mounting frame (1) is provided with an annular sliding groove (9), and the inside of the annular sliding groove (9) is provided with an annular sliding strip (10), and the annular sliding strip (10) is fixedly connected with the rotating ring (8).

4. The variable cross-section turbocharger nozzle ring of claim 3, wherein: The annular sliding strip (10) is slidably connected with the annular sliding groove (9), and the annular sliding strip (10) is arranged on the upper side of the rotating ring (8).

5. The variable cross-section turbocharger nozzle ring of claim 1, wherein: The connecting mechanism includes a connecting ring (11), the connecting ring (11) is fixed on one side of the rotating ring (8), the inside of the connecting ring (11) is provided with a mounting groove (12), and the inside of the mounting groove (12) is fixedly connected with a rubber block (13).

6. The variable cross-section turbocharger nozzle ring of claim 1, wherein: The protection mechanism includes a first rubber pad (14), the first rubber pad (14) is fixedly connected to the inner side of the mounting frame (1), the outer side of the mounting frame (1) is fixedly connected with a second rubber pad (15), and the surface of the second rubber pad (15) is provided with an anti-skid groove (16).

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