Axial nozzle ring paddle mounting structure

Abstract

The utility model belongs to turbocharger technical field discloses an axial nozzle ring dialing disc mounting structure, including installation scroll case and dialing disc, be provided with the mounting groove on the installation scroll case, be provided with the locating along in the mounting groove, and the side wall of mounting groove is provided with the baffle along that the circumference interval distribution of a plurality of sections is distributed, the side along of dialing disc is provided with a plurality of interval arrangement's baffle shoulder corresponding baffle along, when dialing disc and installation scroll case axial alignment and present first angle, each baffle along and each baffle shoulder axial dislocation, when dialing disc and installation scroll case axial alignment and present second angle, each baffle along and each baffle shoulder axial overlap. The utility model will dialing disc and installation scroll case between design as baffle along and baffle shoulder cooperation, cancel the baffle ring spare, through dialing disc between first angle and second angle switching, can realize dialing disc and install scroll case or from installation scroll case take out, greatly reduced the installation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of turbocharger technology, and in particular to an axial nozzle ring actuating disc mounting structure. Background Technology

[0002] The nozzle ring is installed in the turbocharger to control the amount of exhaust gas entering the turbine impeller, thereby controlling the turbocharger's speed. The nozzle ring typically includes a mounting volute, a deflector disc, a drive fork, multiple driven forks, and multiple blades. The deflector disc is rotatable, and the drive forks drive the deflector disc. Multiple driven forks are circumferentially spaced on one end face of the mounting volute, and multiple blades are circumferentially spaced on the other end face. Each driven fork corresponds to a blade; one end of each driven fork is movably connected to the deflector disc, and the other end is connected to the corresponding blade via a pin. The mounting volute has mounting holes for the pin to pass through. When the drive fork drives the deflector disc to rotate, the deflector disc drives the driven forks to rotate. The rotation of the driven forks drives the blades to rotate via the pin. The rotation of the blades changes the blade angle and adjusts the airflow cross-section, thereby regulating the intake air volume.

[0003] In the existing structure, the actuating disc 1' is mounted on the mounting volute 2' via a retaining ring 3'. Both the actuating disc 1' and the mounting volute 2' are provided with retaining ring grooves 4' for mounting the retaining ring 3'. (Refer to...) Figure 1 As shown. The installation of this structure requires tooling, and it is extremely difficult to disassemble after installation, increasing assembly difficulty and tooling costs. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide an axial nozzle ring actuating disc mounting structure that eliminates the need for retaining ring parts, requires no assembly tooling, and reduces installation difficulty.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An axial nozzle ring actuating disk mounting structure includes a mounting volute and an actuating disk. The mounting volute is provided with a mounting groove for mounting the actuating disk. The mounting groove is provided with a positioning edge for positioning the actuating disk. The side wall of the mounting groove is provided with several circumferentially spaced retaining edges. The side edge of the actuating disk is provided with several spaced shoulders corresponding to the retaining edges.

[0007] When the actuating disc is axially aligned with the mounting volute and at a first angle, the edges and shoulders are axially misaligned, allowing the actuating disc to move freely relative to the mounting volute.

[0008] When the actuating disc is axially aligned with the mounting volute and at a second angle, the edges and shoulders overlap axially, thus restricting the axial movement of the actuating disc relative to the mounting volute.

[0009] As an alternative, the flange is provided in two sections, which are distributed at 180°. There are two shoulders, which are distributed at 180°. The difference between the first angle and the second angle is 90°.

[0010] As an optional solution, the central angle corresponding to the flange is 60° to 90°, and the central angle corresponding to the shoulder is 90° to 120°.

[0011] As an alternative, the inner diameter of the flange is the same as the outer diameter of the shoulder.

[0012] As an alternative, the protrusion of the retaining edge on the side wall of the mounting groove is greater than the protrusion of the shoulder on the side edge of the actuating disc, and the distance between the retaining edge and the positioning edge is greater than the axial dimension of the shoulder.

[0013] As an alternative, the flange is formed on the inner and / or outer sidewalls of the mounting groove.

[0014] The beneficial effects of this utility model are:

[0015] The axial nozzle ring actuating disc mounting structure is designed with a flange and shoulder fit between the actuating disc and the mounting volute, eliminating the need for a retaining ring. By switching the actuating disc between a first angle and a second angle, the actuating disc can be installed into or removed from the mounting volute, greatly reducing the installation difficulty. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the existing nozzle ring actuating disc mounting structure;

[0017] Figure 2 This is a schematic diagram of the axial nozzle ring actuating disc mounting structure provided in an embodiment of this utility model;

[0018] Figure 3 This is an exploded view of the axial nozzle ring actuating disc mounting structure provided in this embodiment of the utility model;

[0019] Figure 4 This is a cross-sectional view of the axial nozzle ring actuating disk mounting structure provided in this embodiment of the utility model;

[0020] Figure 5 yes Figure 4 Enlarged view of point A.

[0021] In the attached image:

[0022] 1' Actuating disc; 2' Mounting volute; 3' Retaining ring; 4' Retaining ring groove;

[0023] 1. Actuating plate; 2. Mounting volute; 3. Mounting groove; 4. Positioning edge; 5. Stop edge; 6. Shoulder. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "on the upper side," and "over" the second feature include the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature include the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 2 to 5 As shown, this utility model provides an axial nozzle ring actuating disk mounting structure, including a mounting volute 2 and an actuating disk 1. The mounting volute 2 is provided with a mounting groove 3 for mounting the actuating disk 1. The mounting groove 3 is provided with a positioning edge 4 for positioning the actuating disk 1, and the side wall of the mounting groove 3 is provided with a number of circumferentially spaced retaining edges 5. The side edge of the actuating disk 1 is provided with a number of spaced shoulders 6 corresponding to the retaining edges 5.

[0029] When the actuating disk 1 is axially aligned with the mounting volute 2 at a first angle, each stop 5 and each shoulder 6 is axially misaligned, allowing the actuating disk 1 to move freely relative to the mounting volute 2 axially.

[0030] When the actuating disc 1 is axially aligned with the mounting volute 2 at a second angle, each stop 5 and each shoulder 6 overlap axially, thus restricting the axial movement of the actuating disc 1 relative to the mounting volute 2.

[0031] Therefore, by switching the dial 1 from the first angle to the second angle, the dial 1 can be easily installed into the volute housing 2 without the need for additional tooling.

[0032] To enable the flange 5 and shoulder 6 to switch between staggered and overlapping positions, both flange 5 and shoulder 6 should be spaced apart and able to pass through each other's gaps. The specific number is not limited. In this embodiment, two flange 5 sections are provided, with the two flange 5 sections distributed at 180°. There are two corresponding shoulders 6, with the two shoulders 6 distributed at 180°. The difference between the first angle and the second angle is 90°.

[0033] Furthermore, the central angle corresponding to the edge 5 is 60° to 90°, and the central angle corresponding to the shoulder 6 is 90° to 120°. Here, we take an example where the central angle corresponding to the edge 5 is 80° and the central angle corresponding to the shoulder 6 is 98°, so that the edge 5 and the shoulder 6 have a larger overlapping area.

[0034] Therefore, after the shoulder 6 of the mounting volute 2 is axially misaligned with the flange 5 of the mounting groove 3, it is placed into the mounting groove 3. The mounting volute 2 abuts against the positioning edge 4. The actuating disk 1 is rotated (rotated about 90°). The shoulder 6 and the flange 5 cooperate to prevent the actuating disk 1 from moving axially.

[0035] Optionally, the inner diameter of the flange 5 is the same as the outer diameter of the shoulder 6.

[0036] The purpose of this design is to prevent the toggle disc 1, which is inserted into the mounting slot 3, from easily falling out. Even if the stop edge 5 and the shoulder 6 are axially misaligned, the toggle disc 1 will not fall out directly due to the small fit tolerance, thus reducing the risk of accidental disassembly.

[0037] Optionally, the protrusion of the retaining edge 5 on the side wall of the mounting groove 3 is slightly greater than the protrusion of the shoulder 6 on the side edge of the actuating disk 1, and the distance between the retaining edge 5 and the positioning edge 4 is slightly greater than the axial dimension of the shoulder 6.

[0038] The purpose of this design is to ensure that the dial 1 has a reliable limiting function in the mounting slot 3, while also having sufficient flexibility to facilitate rotation and avoid jamming.

[0039] Optionally, the retaining flange 5 is formed on the inner ring sidewall and / or the outer ring sidewall of the mounting groove 3.

[0040] Since the actuating disc 1 is annular, the retaining edge 5 can be formed on the inner ring sidewall of the mounting groove 3 to limit the shoulder 6 on the inner ring of the actuating disc 1, or it can be formed on the outer ring sidewall of the mounting groove 3 to limit the shoulder 6 on the outer ring of the actuating disc 1, or it can be formed on both the inner and outer ring sidewalls of the mounting groove 3 to simultaneously limit the shoulders 6 on both the inner and outer rings of the actuating disc 1. This embodiment uses the example of forming it on the outer ring sidewall of the mounting groove 3.

[0041] In summary, this axial nozzle ring actuating disc mounting structure, through the cooperative design of the flange 5 and the shoulder 6, enables the rapid installation and removal of the actuating disc 1 within the mounting volute 2. During installation, the actuating disc 1 is first rotated to the first angle (the shoulder 6 and the flange 5 are axially misaligned) and placed into the mounting groove 3. Then, it is rotated to the second angle (usually differing by 90°) so that the shoulder 6 and the flange 5 axially overlap, thus achieving axial locking. No additional tools are required, eliminating the need for additional retaining ring parts.

[0042] The axial nozzle ring actuating disc mounting structure is easy to operate and has reliable connection, which effectively improves assembly efficiency and reduces the risk of accidental disassembly. On this basis, the contour shape of the shoulder 6 and the flange 5 can be further optimized to improve their guiding and load-bearing capacity.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An axial nozzle ring actuating disc mounting structure, comprising a mounting volute (2) and an actuating disc (1), characterized in that, The mounting volute (2) is provided with a mounting groove (3) for mounting the dial (1), and the mounting groove (3) is provided with a positioning edge (4) for positioning the dial (1). The side wall of the mounting groove (3) is provided with several circumferentially spaced retaining edges (5), and the side edge of the dial (1) is provided with several spaced shoulders (6) corresponding to the retaining edges (5). When the actuating disk (1) is axially aligned with the mounting volute (2) at a first angle, each of the stops (5) and each of the shoulders (6) are axially misaligned, so that the actuating disk (1) can move freely relative to the mounting volute (2) axially. When the actuating disk (1) is axially aligned with the mounting volute (2) at a second angle, each of the stops (5) and each of the shoulders (6) overlap axially, thus restricting the axial movement of the actuating disk (1) relative to the mounting volute (2).

2. The axial nozzle ring actuating disc mounting structure according to claim 1, characterized in that, The guard edge (5) is provided in two sections, and the two sections of the guard edge (5) are distributed at 180°. There are two shoulders (6), and the two shoulders (6) are distributed at 180°. The difference between the first angle and the second angle is 90°.

3. The axial nozzle ring actuating disc mounting structure according to claim 2, characterized in that, The central angle corresponding to the flange (5) is 60° to 90°, and the central angle corresponding to the shoulder (6) is 90° to 120°.

4. The axial nozzle ring actuating disc mounting structure according to claim 1, characterized in that, The inner diameter of the flange (5) is the same as the outer diameter of the shoulder (6).

5. The axial nozzle ring actuating disc mounting structure according to claim 1, characterized in that, The protrusion of the stop edge (5) on the side wall of the mounting groove (3) is greater than the protrusion of the shoulder (6) on the side edge of the dial (1), and the distance between the stop edge (5) and the positioning edge (4) is greater than the axial dimension of the shoulder (6).

6. The axial nozzle ring actuating disc mounting structure according to claim 1, characterized in that, The retaining edge (5) is formed on the inner ring sidewall of the mounting groove (3) and / or the outer ring sidewall of the mounting groove (3).

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