Split type die-casting pressure shell, turbocharger and air compression system

Abstract

The utility model provides a split type die-casting pressure shell, which comprises a flow guide mechanism, a flow guide mechanism and a flow guide mechanism, the flow guide mechanism comprises a shell and a vortex tube, the vortex tube is fixed on one side of the shell, a flow guide channel is arranged in the vortex tube, a connecting part is arranged in the shell, and the wall thickness of the shell is 2.4-3.0 mm; and the diffusion plate is inserted into the connecting part in an interference manner. The flow guide mechanism and the diffuser plate are creatively arranged in a split mode, on one hand, the wall thickness of a machining element can be reduced through the structural arrangement, materials are saved, the production cost is reduced, on the other hand, disassembly and assembly can be achieved through the plug-in type structure, a flow guide channel can be detected more conveniently, and in addition, the detection efficiency is improved. Compared with an existing sand casting machining process, the split type pressure casting pressing shell, the turbocharger and the air compression system have the remarkable advantages of being simple in machining condition, high in production efficiency and the like, and have wide application prospects.

Description

Technical Field

[0001] The utility model relates to the technical field of compression shell manufacturing, in particular to a split type die-casting compression shell, a turbocharger and an air compression system. Background Art

[0002] The compressor housing is one of the essential components in equipment such as turbochargers. It can work with the compressor wheel to change the air flow rate and thus convert the kinetic energy of the air into potential energy for supercharging.

[0003] For the compression shell, the current casting process is usually sand casting compression shell integrated molding. On the one hand, this sand casting method requires specific molds and high temperature environment during the processing. In order to adapt to such processing conditions, the wall thickness of the casting is relatively thick, usually 3.5-3.8 mm, and there is a lot of residual material after processing, which causes resource waste and increases production costs. On the other hand, the compression shell product has high requirements for the guide channel, and it is difficult to detect the quality of the guide channel for such one-piece molded products. In addition, the one-piece stamping technology itself is difficult to achieve precise processing, so the product generally has the problem of low yield rate. In addition, this one-piece sand casting process also has defects such as complex production procedures and low production and processing efficiency. Summary of the invention

[0004] To this end, the technical problem to be solved by the utility model is to overcome the problems in the prior art of thick wall thickness, low processing efficiency and difficulty in detecting the guide channel in sand casting, and to provide a split die-casting shell, turbocharger and air compression system.

[0005] In order to solve the above technical problems, the utility model provides a split die-casting shell, which includes: a flow guide mechanism, the flow guide mechanism includes a shell and a vortex tube, the vortex tube is fixed to one side of the shell, a flow guide channel is provided inside the vortex tube, a connecting portion is provided inside the shell, and the shell wall thickness is 2.4 to 3.0 mm; a diffuser plate, the diffuser plate is interference-fitted into the connecting portion.

[0006] In one embodiment of the present invention, the connecting portion includes a first mounting portion, and the first mounting portion is a hollow annular element.

[0007] In an embodiment of the present invention, the diffuser plate is provided with a first plug-in portion, and the first plug-in portion is inserted into the first mounting portion in an interference fit manner.

[0008] In one embodiment of the present invention, the connecting portion further includes a second mounting portion, the first mounting portion and the second mounting portion are concentrically arranged hollow annular elements, and the diameter of the first mounting portion is smaller than the diameter of the second mounting portion.

[0009] In an embodiment of the present invention, the second mounting portion is an inclined surface that gradually extends outwardly along a side away from the first mounting portion.

[0010] In one embodiment of the present invention, the diffuser plate is further provided with a second plug-in portion, the first plug-in portion and the second plug-in portion are concentrically arranged columnar connectors, and the second plug-in portion is inserted into the second mounting portion in an interference fit manner.

[0011] In an embodiment of the present invention, the connecting portion further includes a limiting portion, the limiting portion is perpendicular to the first mounting portion, and the limiting portion and the first mounting portion are respectively arranged on both sides of the second mounting portion.

[0012] In an embodiment of the present invention, the diffuser plate further comprises a stopper, and a side of the stopper facing the first plug-in portion abuts against a side of the limiting portion away from the first mounting portion.

[0013] The utility model also provides a turbocharger, which comprises the split type die-casting shell.

[0014] The utility model also provides an air compression system, which comprises at least one of the above-mentioned turbochargers.

[0015] The above technical solution of the utility model has the following advantages compared with the prior art:

[0016] The split-type die-casting compression shell, turbocharger and air compression system described in the utility model creatively separate the guide mechanism and the diffuser plate. On the one hand, this structural setting can reduce the wall thickness of the processing components, thereby saving materials and reducing production costs. On the other hand, the plug-in structure in the present application can be disassembled and installed, which is more convenient for detecting the guide channel. In addition, compared with the existing sand casting processing technology, the present application also has significant advantages such as simple processing conditions and high production efficiency. It is a new type of split-type die-casting compression shell, turbocharger and air compression system with broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a split-type die-casting shell in a preferred embodiment of the utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the AA slope structure;

[0020] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure of the middle flow guide mechanism;

[0021] Figure 4 yes Figure 1 Schematic diagram of the three-dimensional structure of the middle diffuser.

[0022] Explanation of the reference numerals in the specification: 100, flow guide mechanism; 110, shell; 111, connecting portion; 1111, first mounting portion; 1112, second mounting portion; 1113, limiting portion; 120, vortex tube; 121, flow guide channel; 200, diffuser plate; 210, first plug-in portion; 220, second plug-in portion; 230, stop portion. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0024] Embodiment 1

[0025] See also Figure 1 As shown, this embodiment provides a split-type die-casting shell, which includes: a flow guide mechanism 100, the flow guide mechanism 100 includes a shell 110 and a scroll 120, the scroll 120 is fixed to one side of the shell 110, a flow guide channel 121 is provided inside the scroll 120, a connecting portion 111 is provided inside the shell 110, and the wall thickness of the shell 110 is 2.4 mm; a diffuser plate 200, the diffuser plate 200 is interference-fitted into the connecting portion 111.

[0026] The split die-cast shell described in this embodiment creatively separates the guide mechanism 100 and the diffuser plate 200. On the one hand, this structural setting can reduce the wall thickness of the processing components, thereby saving materials and reducing production costs. On the other hand, the plug-in structure in the present application can be disassembled and installed, which makes it easier to detect the guide channel 121. In addition, compared with the existing sand casting processing technology, the present application also has significant advantages such as simple processing conditions and high production efficiency. It is a new type of split die-cast shell with broad application prospects.

[0027] See also Figures 1 to 3As shown, in this embodiment, when the high-speed air after turbine processing enters the split-type die-casting shell, it can compress the air with rotational kinetic energy, that is, slow down the airflow through the diffuser section, thereby obtaining high-density air, and its surface roughness not only does not affect the flow of gas in the flow channel, but also can maintain good thermal stability under high centrifugal stress. In addition, the performance of the entire compressor in this application is not very sensitive to the size of the single part of the shell, so this split-type die-casting shell can be assembled in parts without affecting its performance. Since the shell wall thickness is reduced to 2.4mm in this application, the support and protection of the diffuser disc 200 is required. Specifically, the diffuser disc 200 can disperse the pressure on the shell 110 during use, thereby increasing the use strength and stability of this split-type die-casting shell.

[0028] See also Figures 1 to 3 As shown, the connection portion 111 includes a first mounting portion 1111, which is a hollow annular element. Accordingly, the diffuser 200 is provided with a first plug-in portion 210, which is inserted into the first mounting portion 1111 by interference. In this embodiment, the first plug-in portion 210 is preferably a columnar element with a diameter slightly larger than the first mounting portion 1111. When in use, the first plug-in portion 210 is inserted into the first mounting portion 1111 by interference, thereby forming the main plug-in installation between the flow guide mechanism 100 and the diffuser 200. Further, the connection portion 111 also includes a second mounting portion 1112, the first mounting portion 1111 and the second mounting portion 1112 are hollow annular elements arranged concentrically, and the cross-sectional diameter of the first mounting portion 1111 is smaller than the cross-sectional diameter of the second mounting portion 1112. Specifically, the second mounting portion 1112 in this embodiment is configured as: an inclined surface that gradually extends outward along a side away from the first mounting portion 1111. Correspondingly, the diffuser 200 is further provided with a second plug-in portion 220, the first plug-in portion 210 and the second plug-in portion 220 are concentrically arranged columnar connectors, and the second plug-in portion 220 is plugged into the second mounting portion 1112 by interference. In this embodiment, the second plug-in portion 220 is plugged into the second mounting portion 1112 by interference, and it is also preferably a flat columnar element with a cross-sectional diameter slightly larger than that of the second mounting portion 1112. Specifically, the interference plugging between the second mounting portion 1112 and the second plug-in portion 220 in this embodiment mainly serves to provide transition guidance for the installation process of the first plug-in portion 210. Therefore, the extension length of the second mounting portion 1112 in the plug-in direction in this embodiment is significantly smaller than that of the first mounting portion 1111, and correspondingly, the extension length of the second plug-in portion 220 in the plug-in direction is significantly smaller than that of the first plug-in portion 210. In other embodiments, the second plug-in portion 220 can also be set as a cambered surface or other structures with transition guidance, and the utility model does not make specific restrictions on this.

[0029] See also Figure 1 and Figure 3 As shown, the connecting portion 111 also includes a limiting portion 1113, the limiting portion 1113 is perpendicular to the first mounting portion 1111, and the limiting portion 1113 and the first mounting portion 1111 are respectively arranged on both sides of the second mounting portion 1112. Correspondingly, the diffuser plate 200 also includes a stop portion 230, and the stop portion 230 abuts against a side of the limiting portion 1113 away from the first mounting portion 1111 on a side facing the first plug-in portion 210. In the present embodiment, the limiting portion 1113 and the stop portion 230 can cooperate with each other to avoid transitional insertion of the diffuser disc 200. Specifically, the limiting portion 1113 in the present embodiment extends outward to form an abutment surface perpendicular to the insertion direction. The cross-sectional diameter of the stop portion 230 is larger than that of the second plug-in portion 220, and the stop portion 230 is preferably a columnar element concentrically arranged with the second plug-in portion 220. When the two are connected, the stop portion 230 can abut against the limiting portion 1113. If force is continued to be applied to the diffuser disc 200 along the plug-in direction at this time, an extrusion limit will be formed between the stop portion 230 and the limiting portion 1113, thereby ensuring that the diffuser disc 200 can be stably plugged into the guide mechanism 100 and that the normal use of the guide channel 121 will not be affected by transitional insertion.

[0030] In summary, the split die-casting shell described in this embodiment creatively separates the guide mechanism 100 and the diffuser plate 200. On the one hand, this structural setting can reduce the wall thickness of the processing components, thereby saving materials and reducing production costs. On the other hand, the plug-in structure in the present application can realize disassembly and installation, which is more convenient for detecting the guide channel 121. In addition, compared with the existing sand casting processing technology, the present application also has significant advantages such as simple processing conditions and high production efficiency. It is a new type of split die-casting shell with broad application prospects.

[0031] Embodiment 2

[0032] This embodiment provides another split-type die-casting shell, whose main structure and connection relationship are the same as those in the first embodiment. In this embodiment, only the wall thickness of the shell 110 is set to 3.0 mm, thereby further increasing the strength and stability of the shell during use. In other embodiments, the wall thickness of the shell 110 can be set to any value between 2.4 and 3.0 mm according to actual processing conditions and product requirements. The utility model does not make specific restrictions. Based on this, the shell wall thickness in this application is compared with the wall thickness of the existing sand casting product.

[0033] Compared with the conventional 3.5-3.8mm, it is obviously thinner, which can achieve the purpose of reducing costs. At the same time, the split manufacturing process can also increase the processing efficiency exponentially.

[0034] Embodiment 3

[0035] This embodiment provides a turbocharger, which includes the split die-casting casing described in the first embodiment.

[0036] Embodiment 4

[0037] This embodiment provides an air compression system, which includes at least one turbocharger described in Example 3. Specifically, the air compression system in this embodiment includes a turbocharger, an air compressor, an air storage tank, a cold dryer, an oil-water separator, an air distribution pipeline and an air pressure regulating valve.

[0038] In summary, the split-type die-casting compression shell, turbocharger and air compression system described in the utility model creatively separate the guide mechanism and the diffuser plate. On the one hand, this structural setting can reduce the wall thickness of the processed components, thereby saving materials and reducing production costs. On the other hand, the plug-in structure in the present application can be disassembled and installed, which is more convenient for detecting the guide channel. In addition, compared with the existing sand casting processing technology, the present application also has significant advantages such as simple processing conditions and high production efficiency. It is a new type of split-type die-casting compression shell, turbocharger and air compression system with broad application prospects.

[0039] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A split type die-casting shell, characterized in that: include: A flow guiding mechanism, the flow guiding mechanism comprises a shell and a scroll tube, the scroll tube is fixed to one side of the shell, a flow guiding channel is arranged inside the scroll tube, a connecting portion is arranged inside the shell, and the shell wall thickness is 2.4-3.0 mm; A diffuser plate is inserted into the connecting portion through interference fit.

2. The split type die-casting shell according to claim 1, characterized in that: The connecting portion includes a first mounting portion, which is a hollow annular element.

3. The split type die-casting shell according to claim 2, characterized in that: The diffuser plate is provided with a first plug-in portion, and the first plug-in portion is inserted into the first mounting portion through interference fit.

4. The split type die-casting shell according to claim 3 is characterized in that: The connecting portion further includes a second mounting portion, the first mounting portion and the second mounting portion are concentrically arranged hollow annular elements, and the diameter of the first mounting portion is smaller than the diameter of the second mounting portion.

5. The split type die-casting shell according to claim 4, characterized in that: The second mounting portion is an inclined surface that gradually extends outwardly along a side away from the first mounting portion.

6. The split type die-casting shell according to claim 4, characterized in that: The diffuser plate is further provided with a second plug-in portion, the first plug-in portion and the second plug-in portion are coaxially arranged columnar connectors, and the second plug-in portion is inserted into the second mounting portion with interference fit.

7. The split type die-casting shell according to claim 4, characterized in that: The connecting portion further includes a limiting portion, the limiting portion is perpendicular to the first mounting portion, and the limiting portion and the first mounting portion are respectively arranged on two sides of the second mounting portion.

8. The split type die-casting shell according to claim 7, characterized in that: The diffuser plate further includes a stopper, wherein a side of the stopper facing the first plug-in portion abuts against a side of the limiting portion away from the first mounting portion.

9. A turbocharger, characterized in that: It comprises the split type die-casting shell as described in any one of claims 1 to 8.

10. An air compression system, characterized in that: Comprising at least one turbocharger as claimed in claim 9.

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