A vacuum casting device for turbocharger impellers

Abstract

This utility model relates to the field of turbocharger impeller casting technology, and discloses a vacuum casting device for turbocharger impellers. It includes a support base, a vacuum chamber mounted on the top of the support base, a maintenance door at the front end of the vacuum chamber, a maintenance door on one side of the top of a vacuum cover, a guide pipe mounted on the bottom of an intermediate ladle extending into the vacuum chamber, a material cylinder mounted on the top of the intermediate ladle, and a feed inlet on one side of the top of the material cylinder. This utility model incorporates components such as a filter cylinder, cover, connecting base, and mesh cylinder on one side of a vacuum pump. After the vacuum pump evacuates the vacuum chamber and restores it to normal, external gas entering the vacuum chamber is filtered through the mesh cylinder inside the filter cylinder to remove impurities, resulting in pure gas entering the vacuum chamber and improving performance.

Description

Technical Field

[0001] This utility model relates to the field of turbocharger impeller casting production technology, specifically a vacuum casting device for turbocharger impellers. Background Technology

[0002] A turbocharger is an air compressor driven by engine exhaust gas. The turbocharger impeller is a key component of the turbocharger and plays an important role in rapidly increasing the engine's intake air volume. During the production of turbocharger impellers, a vacuum casting device is used to cast the impellers in a vacuum environment to ensure the quality and precision of the impeller production.

[0003] Traditional vacuum casting devices for turbocharger impellers require careful handling. After the vacuum pump evacuates the vacuum chamber, external gases must be introduced back into the chamber to prevent impurities from affecting the internal environment. Therefore, we propose an improved vacuum casting device for turbocharger impellers to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum casting device for turbocharger impellers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum casting device for turbocharger impellers, comprising a support base, a vacuum chamber mounted on the top of the support base, a maintenance door provided at the front end of the vacuum chamber, a steel ingot mold mounted inside the vacuum chamber, a vacuum cover mounted on the top of the vacuum chamber, a maintenance door mounted on one side of the top of the vacuum cover, a vacuum pump mounted on one end of the maintenance door, a filter cartridge mounted on one end of the vacuum pump, a cover mounted on one side of the filter cartridge, flanges mounted on one side of both the cover and the filter cartridge, a connecting seat mounted on one side of the cover, a mesh cylinder mounted inside the connecting seat, an intermediate ladle mounted on the top of the vacuum cover, a guide pipe mounted on the bottom end of the intermediate ladle extending into the interior of the vacuum chamber, a material cylinder mounted on the top of the intermediate ladle, and a feed inlet mounted on one side of the top of the material cylinder.

[0006] Preferably, the outer side wall of the cover is uniformly provided with external threads, and the cover and the filter cylinder form a threaded connection.

[0007] Preferably, the outer side wall of the mesh cylinder is uniformly provided with external threads, and the inner side wall of the connecting seat is uniformly provided with internal threads, thus forming a threaded connection between the mesh cylinder and the connecting seat.

[0008] Preferably, a servo motor is installed at the middle position of the top of the material cylinder, a stirring blade is installed at the bottom of the servo motor, and a scraper is fixed on one side of each stirring blade.

[0009] Preferably, there are several stirring blades, and the several stirring blades are symmetrically distributed about the central axis of the material cylinder.

[0010] Preferably, the scraper rods are provided in two sets, and the shape of the scraper rods is adapted to the material cylinder.

[0011] Preferably, an insulation sleeve is installed on the outer wall of the guide tube, and an electric heating tube is installed inside the insulation sleeve.

[0012] Preferably, the length of the insulation sleeve is equal to the length of the guide tube, and the electric heating tube is evenly wound around the outer wall of the guide tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the vacuum casting device for turbocharger impellers not only ensures that external gas entering the vacuum chamber will not carry impurities and pollute the internal environment of the vacuum chamber, and that the materials used to produce turbocharger impellers can be mixed evenly, but also achieves heating of the guide tube to prevent material from sticking to the inner wall of the guide tube.

[0014] (1) By setting up components such as filter cylinder, cover, connecting seat and mesh cylinder on one side of the vacuum pump, when the vacuum pump evacuates the vacuum chamber and restores the vacuum chamber to normal, the external gas will be filtered by the mesh cylinder inside the filter cylinder when it enters the vacuum chamber through the vacuum pump, so that pure gas enters the vacuum chamber and the effect is better.

[0015] (2) By setting up components such as stirring blades, scraper rods and servo motors on the material cylinder, the material for producing turbocharger impellers enters the interior of the material cylinder. With the above components set up, the material can be stirred to make it evenly mixed. The mixed material is then used to produce turbocharger impellers, thereby making the production quality of the turbocharger impellers better.

[0016] (3) By providing an insulation sleeve and an electric heating tube on the outer wall of the guide tube, the guide tube is used to inject the material for producing the turbocharger impeller into the steel ingot mold inside the vacuum chamber. The material flows through the guide tube because the insulation sleeve and electric heating tube on the outer wall of the guide tube can heat the guide tube, so that the guide tube is in a heated state, avoiding solidification and adhesion of the material when it flows through the guide tube, thus avoiding waste. Attached Figure Description

[0017] Figure 1 This is a frontal cross-sectional view of the present invention.

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 For the present utility model Figure 1 A magnified view of the structure at point A in the middle;

[0020] Figure 4 This is a front view cross-sectional structural diagram of the filter cartridge of this utility model.

[0021] In the diagram: 1. Vacuum chamber; 2. Support base; 3. Ingot mold; 4. Vacuum cover; 5. Guide pipe; 6. Stirring blade; 7. Scraper rod; 8. Servo motor; 9. Feed inlet; 10. Material cylinder; 11. Tundish; 12. Filter cylinder; 13. Vacuum pump; 14. Maintenance door; 15. Insulation sleeve; 16. Electric heating element; 17. Flange; 18. Cover body; 19. Connecting seat; 20. Mesh cylinder. Detailed Implementation

[0022] 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.

[0023] This utility model provides an embodiment: a vacuum casting device for a turbocharger impeller, including a support base 2, a vacuum chamber 1 installed at the top of the support base 2, and a maintenance door 14 provided at the front end of the vacuum chamber 1. A steel ingot mold 3 is installed inside the vacuum chamber 1, a vacuum cover 4 is installed at the top of the vacuum chamber 1, a maintenance door 14 is installed on one side of the top of the vacuum cover 4, a vacuum pump 13 is installed at one end of the maintenance door 14, a filter cartridge 12 is installed at one end of the vacuum pump 13, a cover 18 is installed on one side of the filter cartridge 12, a flange 17 is installed on one side of both the cover 18 and the filter cartridge 12, and a connecting seat 19 is installed on one side of the cover 18. The internal structure includes a mesh cylinder 20, an intermediate liner 11 at the top of the vacuum cover 4, a guide pipe 5 at the bottom of the intermediate liner 11 extending into the vacuum chamber 1, a material cylinder 10 at the top of the intermediate liner 11, a feed inlet 9 on one side of the top of the material cylinder 10, external threads evenly distributed on the outer side wall of the cover 18, and a threaded connection between the cover 18 and the filter cylinder 12, facilitating the opening and maintenance of the filter cylinder 12. External threads are evenly distributed on one side of the outer side wall of the mesh cylinder 20, and internal threads are evenly distributed on the inner side wall of the connecting seat 19, forming a threaded connection between the mesh cylinder 20 and the connecting seat 19, facilitating the disassembly and cleaning of the mesh cylinder 20.

[0024] Specifically, such as Figure 1 and Figure 4 As shown, when external gas enters the vacuum chamber 1 through the vacuum pump 13 to restore it to normal, the external gas first enters the filter cartridge 12 and is filtered by the cover 18 to remove impurities and become pure before entering the vacuum chamber 1.

[0025] A servo motor 8 is installed at the middle position of the top of the material cylinder 10. A stirring blade 6 is installed at the bottom of the servo motor 8. A scraper rod 7 is fixed on one side of each stirring blade 6. There are several stirring blades 6, and the several stirring blades 6 are symmetrically distributed about the central axis of the material cylinder 10. There are two sets of scraper rods 7, and the shape of the scraper rods 7 is matched with that of the material cylinder 10, so that the scraping effect of the material adhering to the inner wall of the material cylinder 10 is better.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, various materials for producing turbocharger impellers are injected into the material cylinder 10 through the feed inlet 9. The servo motor 8 is started to drive the stirring blade 6 to rotate and stir the materials poured into the material cylinder 10. After the materials are fully mixed, they are discharged for turbocharger impeller production. While the stirring blade 6 is rotating and stirring the materials inside the material cylinder 10, the scraper rod 7 on one side of the stirring blade 6 will rotate against the inner wall of the material cylinder 10 to scrape the inner wall of the material cylinder 10 and prevent the materials from sticking together.

[0027] An insulation sleeve 15 is installed on the outer wall of the guide tube 5, and an electric heating tube 16 is installed inside the insulation sleeve 15. The length of the insulation sleeve 15 is equal to the length of the guide tube 5. The electric heating tube 16 is evenly wrapped around the outer wall of the guide tube 5, which improves the heating effect of the guide tube 5.

[0028] Specifically, such as Figure 1 and Figure 3 As shown, the electric heating tube 16 inside the insulation sleeve 15 on the outer wall of the guide tube 5 is activated to heat the guide tube 5, so that the guide tube 5 is in a hot state. When the material flows inside, the material is less likely to stick to the inner wall of the guide tube 5, resulting in better performance.

[0029] Working principle: In use, the material for producing the turbocharger impeller is poured into the material cylinder 10. The electric heating tube 16 inside the insulation sleeve 15 on the outer wall of the guide pipe 5 is turned on to heat the guide pipe 5. Then, the servo motor 8 is started to drive the stirring blade 6 to rotate and stir the material poured into the material cylinder 10 to make it fully mixed. At the same time, the vacuum pump 13 is started to remove the air inside the vacuum chamber 1, making the vacuum chamber 1 a vacuum state. Then, the control valve at the bottom of the material cylinder 10 is opened, and the mixed material inside the material cylinder 10 enters the intermediate ladle 11 and then enters the steel ingot mold 3 inside the vacuum chamber 1 through the guide pipe 5. After solidification, the maintenance door 14 at the front end of the vacuum chamber 1 is opened to take out the cast turbocharger impeller. When the vacuum chamber 1 returns to normal, the external gas will first enter the filter cylinder 12 and be filtered by the cover 18 to remove impurities in the gas and become pure before entering the vacuum chamber 1.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vacuum casting device for turbocharger impellers comprising a support seat (2), characterized in that: A vacuum chamber (1) is installed at the top of the support base (2), and a maintenance door (14) is provided at the front end of the vacuum chamber (1). A steel ingot mold (3) is installed inside the vacuum chamber (1). A vacuum cover (4) is installed at the top of the vacuum chamber (1). A maintenance door (14) is installed on one side of the top of the vacuum cover (4), and a vacuum pump (13) is installed at one end of the maintenance door (14). A filter cartridge (12) is installed at one end of the vacuum pump (13), and a cover (18) is installed on one side of the filter cartridge (12). A flange (17) is installed on one side of both the cover (18) and the filter cylinder (12). A connecting seat (19) is installed on one side of the cover (18), and a mesh cylinder (20) is installed inside the connecting seat (19). An intermediate package (11) is installed at the top of the vacuum cover (4). A guide pipe (5) is installed at the bottom of the intermediate package (11), and the guide pipe (5) extends into the interior of the vacuum chamber (1). A material cylinder (10) is installed at the top of the intermediate package (11), and a feed port (9) is installed on one side of the top of the material cylinder (10).

2. A vacuum casting apparatus for turbocharger impellers as defined in claim 1, wherein: The outer wall of the cover (18) is uniformly provided with external threads, and the cover (18) and the filter cylinder (12) are connected by threads.

3. A vacuum casting apparatus for turbocharger impellers as defined in claim 1, wherein: The outer side wall of the mesh cylinder (20) is uniformly provided with external threads, and the inner side wall of the connecting seat (19) is uniformly provided with internal threads, thus forming a threaded connection between the mesh cylinder (20) and the connecting seat (19).

4. A vacuum casting apparatus for turbocharger impellers as defined in claim 1, wherein: A servo motor (8) is installed at the middle position of the top of the material cylinder (10), and a stirring blade (6) is installed at the bottom of the servo motor (8). A scraper rod (7) is fixed on one side of the stirring blade (6).

5. A vacuum casting apparatus for turbocharger wheels as defined in claim 4 wherein: The stirring blades (6) are provided in a plurality of manner, and the plurality of stirring blades (6) are symmetrically distributed about the central axis of the material cylinder (10).

6. A vacuum casting apparatus for turbocharger wheels as defined in claim 4 wherein: The scraper (7) is provided in two sets, and the shape of the scraper (7) is matched with that of the material cylinder (10).

7. A vacuum casting apparatus for turbocharger wheels as defined in claim 1 wherein: The outer wall of the guide tube (5) is fitted with a heat insulation sleeve (15), and an electric heating tube (16) is installed inside the heat insulation sleeve (15).

8. A vacuum casting apparatus for turbocharger wheels as defined in claim 7, wherein: The length of the insulation sleeve (15) is equal to the length of the guide tube (5), and the electric heating tube (16) is evenly wrapped around the outer wall of the guide tube (5).

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