A new turbocharger ring

Abstract

The utility model discloses a novel turbocharger ring relates to turbocharger accessory technical field, including the protection ring and the installation ring, the outside of protection ring is equipped with the gear ring, and the inside wall of gear ring is provided with the gear, the middle part of gear is provided with the transmission shaft, and the outside of gear is connected with the rack, the through -hole of gear ring outer surface is provided with the positioning pin of through -setting, and the outside fixed of positioning pin has the compression plate. This novel turbocharger ring, eight groups of gear are annular equidistance distribution along gear ring inside, and the gear, transmission shaft, rack quantity are identical, through manual rotation gear ring, can drive eight groups of gear, eight transmission shafts rotation simultaneously, and drive eight racks axial synchronous extension along the positioning hole, ensure that the installation ring is even, compared with traditional 2 independent screws screwing one by one, and this structure does not need to rely on manual screwing force, avoids the installation ring deflection of traditional structure because of the uneven strength.

Description

Technical Field

[0001] This utility model relates to the technical field of turbocharger accessories, specifically a novel turbocharger ring. Background Technology

[0002] Variable geometry turbochargers (VGTs) change the cross-sectional area of ​​exhaust gas flow by adjusting the angle of the guide vanes, achieving full-condition adaptability of high boost at low speeds and low back pressure at high speeds. The ring, as the core mounting and linkage carrier of the guide vanes, directly determines the performance of the VGT.

[0003] For example, utility model application CN202322907515.7 discloses a sealing ring for a turbocharger structure. This utility model uses Torx screws to lock and fix the mounting ring and the protective ring together. The Torx screws are also secured by a flexible sleeve, a limiting rod, and a limiting ring groove, preventing loosening and ensuring the long-term stability of the connection between the mounting ring and the protective ring. However, locking relies on two independent screws, requiring each to be tightened individually during installation, which is cumbersome and prone to causing the mounting ring to skew due to uneven tightening force.

[0004] Therefore, in view of this, we studied and improved the existing structure and its shortcomings, and proposed a new type of turbocharger ring. Utility Model Content

[0005] The purpose of this invention is to provide a novel turbocharger ring to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel turbocharger ring, comprising a protective ring and a mounting ring. A gear ring is fitted on the outer side of the protective ring, and a gear is provided on the inner sidewall of the gear ring. A drive shaft passes through the middle of the gear, and a rack is connected to the outside of the gear. A positioning pin is provided through a through hole on the outer surface of the gear ring, and a clamping plate is fixed to the outside of the positioning pin. A compression spring is connected to the side of the clamping plate near the gear ring. A positioning groove is provided on the inner sidewall of the protective ring. The mounting ring is located inside the protective ring, and positioning holes are provided on the inner sides of both the protective ring and the mounting ring.

[0007] Furthermore, the gears are distributed in a ring at equal intervals along the inner side of the gear ring, and the number of gears, drive shafts and racks is the same.

[0008] Furthermore, both ends of the drive shaft are rotatably connected to the protective rings, and the drive shaft is provided with eight shafts.

[0009] Furthermore, the thickness ratio of the gear ring, gear, and rack is 1:2:1, and the gear ring, protective ring, and mounting ring are coaxially arranged.

[0010] Furthermore, an elastic ring is provided on the inner side of the mounting ring, and a sealing element is provided on the inner side of the elastic ring.

[0011] Furthermore, a connecting rod is fixed to the outer wall of the seal, and a support plate is provided at the other end of the connecting rod.

[0012] Furthermore, a compression spring is connected to one end of the support plate away from the connecting rod, and the other end of the compression spring is fixedly connected to the mounting ring.

[0013] Furthermore, the support plate is elastically connected to the mounting ring via a compression spring, and the seal, connecting rod, and support plate are integrated into a single structure.

[0014] This utility model provides a novel turbocharger ring, which has the following beneficial effects: 1. The present invention has eight sets of gears distributed in a ring at equal intervals along the inner side of the gear ring, and the number of gears, transmission shafts and racks is the same. By manually rotating the gear ring, the eight sets of gears and eight transmission shafts can be driven to rotate simultaneously, and the eight racks can be driven to extend synchronously along the axial direction of the positioning hole, ensuring that the mounting ring is subjected to uniform force. Compared with the traditional two independent screws that are turned one by one, this structure does not rely on manual turning force, avoiding the misalignment of the mounting ring caused by uneven force in the traditional structure.

[0015] 2. The seal, connecting rod and support plate of this utility model adopt an integrated molding process. When the VGT drive shaft generates 0.1-0.2mm radial runout due to high-speed rotation, the compression spring two adjusts the position of the support plate in real time through elastic deformation, pushing the seal to shift synchronously with the drive shaft. At the same time, the elastic ring undergoes radial deformation with the displacement of the seal, absorbing the gap between the seal and the mounting ring, and avoiding partial detachment of the seal caused by the runout of the drive shaft. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of a novel turbocharger ring according to the present invention; Figure 2 This is a cross-sectional view of a novel turbocharger ring according to the present invention. Figure 3 This is a three-dimensional structural diagram of a protective ring for a novel turbocharger annulus according to the present invention.

[0017] In the diagram: 1. Protective ring; 2. Gear ring; 3. Gear; 4. Drive shaft; 5. Rack; 6. Locating pin; 7. Pressure plate; 8. Compression spring one; 9. Locating groove; 10. Locating hole; 11. Mounting ring; 12. Elastic ring; 13. Seal; 14. Connecting rod; 15. Support plate; 16. Compression spring two. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0019] like Figures 1 to 3 As shown, a novel turbocharger ring includes a protective ring 1 and a mounting ring 11. A gear ring 2 is fitted on the outer side of the protective ring 1, and a gear 3 is provided on the inner sidewall of the gear ring 2. A drive shaft 4 passes through the middle of the gear 3, and a rack 5 is connected to the outside of the gear 3. A positioning pin 6 is provided through a through hole on the outer surface of the gear ring 2, and a clamping plate 7 is fixed to the outside of the positioning pin 6. A compression spring 8 is connected to the side of the clamping plate 7 near the gear ring 2. The inner sidewall of the protective ring 1 has an opening... There is a positioning groove 9, and the mounting ring 11 is set inside the protective ring 1. The inner sides of both the protective ring 1 and the mounting ring 11 are provided with positioning holes 10. The gears 3 are distributed in a ring at equal intervals along the inner side of the gear ring 2. The number of gears 3, transmission shafts 4 and racks 5 is the same. The two ends of the transmission shaft 4 are rotatably connected to the protective ring 1. There are eight transmission shafts 4. The thickness ratio of the gear ring 2, gears 3 and racks 5 is 1:2:1. The gear ring 2, protective ring 1 and mounting ring 11 are coaxially arranged.

[0020] The specific operation is as follows: eight sets of gears 3 are distributed in a ring at equal intervals along the inner side of the gear ring 2, and the number of gears 3, transmission shafts 4, and racks 5 is the same. By manually rotating the gear ring 2, the eight sets of gears 3 and eight transmission shafts 4 can be driven to rotate simultaneously, and the eight racks 5 can be driven to extend synchronously along the axial direction of the positioning hole 10, ensuring that the mounting ring 11 is subjected to uniform force. Compared with the traditional two independent screws that are turned one by one, this structure does not need to rely on manual turning force, avoiding the misalignment of the mounting ring 11 caused by uneven force in the traditional structure.

[0021] like Figure 1 and Figure 2 As shown, an elastic ring 12 is provided on the inner side of the mounting ring 11, and a sealing element 13 is provided on the inner side of the elastic ring 12. A connecting rod 14 is fixed on the outer wall of the sealing element 13, and a support plate 15 is provided on the other end of the connecting rod 14. A compression spring 16 is connected to the end of the support plate 15 away from the connecting rod 14, and the other end of the compression spring 16 is fixedly connected to the mounting ring 11. The support plate 15 is elastically connected to the mounting ring 11 through the compression spring 16, and the sealing element 13, the connecting rod 14 and the support plate 15 are integrated into one structure.

[0022] The specific operation is as follows: the seal 13, connecting rod 14 and support plate 15 are made in one piece. When the VGT drive shaft generates 0.1-0.2mm radial runout due to high-speed rotation, the compression spring 16 adjusts the position of the support plate 15 in real time through elastic deformation, pushing the seal 13 to shift synchronously with the drive shaft. At the same time, the elastic ring 12 undergoes radial deformation with the displacement of the seal 13, absorbing the gap between the seal 13 and the mounting ring 11, and preventing the seal 13 from partially detaching due to the runout of the drive shaft.

[0023] In summary, when using this new turbocharger ring, firstly, the mounting ring 11 is embedded inside the protective ring 1 to ensure that the two are coaxial. At the same time, the position of the mounting ring 11 is adjusted so that the protective ring 1 is precisely aligned with the positioning hole 10 inside the mounting ring 11. The elastic ring 12 (silicone rubber material) inside the mounting ring 11 naturally fits the eight sets of seals 13 (PTFE + carbon fiber composite material). The eight sets of seals 13 are spliced ​​together circumferentially to form an annular sealing surface. At this time, the compression spring 16 is in a slightly pre-compressed state to ensure that the initial fit of the seals 13 is ≥98%, and to adapt to the sealing profile of the VGT drive shaft in advance. When it is necessary to lock the mounting ring 11 and the protective ring 1, manually pull the positioning pin 6 outward to drive the clamping plate 7 to compress the compression spring 8, so that the positioning pin 6 completely disengages from the positioning groove 9, releasing the relative rotation lock between the gear ring 2 and the protective ring 1. At this time, the gear ring 2 can rotate freely around the protective ring 1. By manually rotating the gear ring 2, the eight sets of gears 3 and eight transmission shafts 4 are driven to rotate synchronously. The gears 3 mesh to drive the rack 5 to move axially along the positioning hole 10 of the protective ring 1, so that the eight racks 5 can be inserted into the positioning hole 10 of the mounting ring 11 at the same time, thereby achieving a rigid connection between the mounting ring 11 and the protective ring 1, and ensuring that the mounting ring 11 has no local misalignment. Then stop rotating the gear ring 2, release the positioning pin 6, and push the clamping plate 7 to reset by the return of the compression spring 8, so that the positioning pin 6 is inserted into the positioning groove 9 at the corresponding position, thereby locking the relative position of the gear ring 2 and the protective ring 1, effectively resisting VGT high-frequency vibration, ensuring the connection stability of the mounting ring 11 and the protective ring 1, and eliminating the risk of later displacement. Finally, the VGT drive shaft is passed through the inner side of the mounting ring 11. The outer circumference of the drive shaft presses against the eight sets of seals 13, pushing the seals 13 to drive the connecting rod 14 and the support plate 15 to compress the compression spring 16. The elastic deformation of the compression spring 16 compensates for the radial runout of the drive shaft of 0.1-0.2mm. At the same time, the deformation of the elastic ring 12 absorbs the local stress of the seals 13, ensuring that the contact pressure between the seals 13 and the drive shaft is stable at 25-35N, thereby reducing the exhaust gas leakage rate.

[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A novel turbocharger ring, comprising a protective ring (1) and a mounting ring (11), characterized in that, The protective ring (1) is fitted with a gear ring (2) on its outer side, and a gear (3) is provided on the inner side wall of the gear ring (2). A transmission shaft (4) passes through the middle of the gear (3), and a rack (5) is connected to the outside of the gear (3). A positioning pin (6) is provided through the through hole on the outer surface of the gear ring (2), and a pressure plate (7) is fixed to the outside of the positioning pin (6). A compression spring (8) is connected to the side of the pressure plate (7) near the gear ring (2). A positioning groove (9) is provided on the inner side wall of the protective ring (1). The mounting ring (11) is located on the inner side of the protective ring (1), and positioning holes (10) are provided on the inner sides of both the protective ring (1) and the mounting ring (11).

2. The novel turbocharger ring according to claim 1, characterized in that, The gears (3) are distributed in a ring at equal intervals along the inner side of the gear ring (2), and the number of gears (3), transmission shafts (4) and racks (5) is the same.

3. The novel turbocharger ring according to claim 1, characterized in that, The two ends of the drive shaft (4) are rotatably connected to the protective ring (1), and the drive shaft (4) is provided with eight shafts.

4. A novel turbocharger ring according to claim 1, characterized in that, The thickness ratio of the gear ring (2), gear (3) and rack (5) is 1:2:1, and the gear ring (2), protective ring (1) and mounting ring (11) are coaxially arranged.

5. A novel turbocharger ring according to claim 1, characterized in that, An elastic ring (12) is provided on the inner side of the mounting ring (11), and a sealing element (13) is provided on the inner side of the elastic ring (12).

6. A novel turbocharger ring according to claim 5, characterized in that, The outer wall of the seal (13) is fixed with a connecting rod (14), and the other end of the connecting rod (14) is provided with a support plate (15).

7. A novel turbocharger ring according to claim 6, characterized in that, The support plate (15) is connected to a compression spring (16) at one end away from the connecting rod (14), and the other end of the compression spring (16) is fixedly connected to the mounting ring (11).

8. A novel turbocharger ring according to claim 7, characterized in that, The support plate (15) is elastically connected to the mounting ring (11) by a compression spring (16), and the seal (13), connecting rod (14) and support plate (15) are integrated.

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