A detachable vane diffuser for a turbocharger

Abstract

The present invention provides a detachable vane diffuser for a turbocharger, which comprises a diffuser body. A plurality of positioning grooves are provided on the upper end surface of the diffuser body. An installation block is placed in each positioning groove. A blade is provided on each installation block. The plurality of blades are arranged at equal distances along the circumference of an installation opening provided on the diffuser body. A plurality of placement grooves are provided on the lower end surface of the diffuser body. The placement grooves are arranged corresponding to the positioning grooves. A clamping block is provided in each placement groove. A fixing member for fixing the blades, the installation blocks and the clamping blocks is provided on the diffuser body; a limiting member for limiting the blades is further provided in the positioning grooves. The detachable vane diffuser for a turbocharger according to the present invention positions the blades by using positioning pins, and the elastic force generated by the compression of the rubber washers provided at the bottom ends of the positioning pins is used to squeeze the installation blocks and the diffuser body. The blades are disassembled and assembled by applying force to rotate the fastening bolts, which is convenient for the maintenance, grinding and replacement of the blades.

Description

Technical Field

[0001] The present invention belongs to the technical field of fluid machinery, and in particular relates to a detachable vane diffuser for a turbocharger. Background Art

[0002] Some turbochargers use vane diffusers. The vane diffuser restricts the flow direction of the air flow through the shape of the vanes, thereby shortening the overall structural size of the diffuser passage. By using the difference in the flow cross-sectional area, the kinetic energy is converted into pressure energy, guiding the air flow after the compressor, reducing air flow separation, improving the efficiency of the compressor, and increasing the compression ratio of the compressor.

[0003] The vanes of traditional vane diffusers cannot be disassembled. After the turbocharger operates for a long time, impurities in the air flow wear the vanes, or the grease in the unclean air adheres to the vanes of the vane diffuser, resulting in a change in the fluid area, causing a reduction in the performance of the compressor, or the vanes are corroded, affecting the normal operation of the supercharger. Therefore, this patent application designs a detachable vane diffuser for a turbocharger. Summary of the Invention

[0004] In view of this, the present invention aims to provide a detachable vane diffuser for a turbocharger to solve the problem that due to the non-disassemblable vanes of the vane diffuser, after the turbocharger operates for a long time, impurities in the air flow wear the vanes, resulting in a change in the fluid area, causing a reduction in the performance of the compressor, and affecting the normal operation of the supercharger.

[0005] To achieve the above object, the technical solution of the present invention is realized as follows:

[0006] A detachable vane diffuser for a turbocharger includes a diffuser body. A plurality of positioning grooves are provided on the upper end surface of the diffuser body. An installation block is placed in each positioning groove. A vane is provided on each installation block. The plurality of vanes are arranged at equal intervals along the circumference of an installation opening provided on the diffuser body. A plurality of placement grooves are provided on the lower end surface of the diffuser body. The placement grooves are arranged corresponding to the positioning grooves. A clamping block is provided in the placement groove. A fixing member for fixing the vane, the installation block, and the clamping block is provided on the diffuser body;

[0007] A limiting member for limiting the vane is further provided in the positioning groove.

[0008] Further, the limiting member includes a limiting pin. The limiting pin is fixedly provided in the positioning groove, and a rubber washer is provided around the root of the limiting pin.

[0009] Further, a receiving groove corresponding to the rubber washer is provided on the bottom end surface of the installation block;

[0010] A through pin hole is provided in the receiving groove of the installation block, and the limiting pin is correspondingly arranged in the pin hole.

[0011] Further, the positioning groove and the placement groove are both triangular structures, the blade, the mounting block and the clamping block are all triangular prism structures, the mounting block is correspondingly arranged in the positioning groove, and the clamping block is correspondingly arranged in the placement groove;

[0012] A notch is provided at one end of the blade away from the mounting port, and the fixing member is correspondingly arranged at the notch;

[0013] A positioning hole corresponding to the limit pin is provided on the bottom end face of the blade.

[0014] Further, the positioning hole is arc-shaped, the limit pin is correspondingly arranged in the positioning hole, and the blade is angle-adjusted along the direction in which the positioning hole is arranged.

[0015] Further, the fixing member is a fastening bolt, an installation hole penetrating into the placement groove is provided in the positioning groove, and fixing holes corresponding to the fastening bolt are provided on both the mounting block and the clamping block.

[0016] Further, a fixing ring is fixedly provided on the outer side of the diffuser body.

[0017] Compared with the prior art, the detachable vane diffuser of the turbocharger of the present invention has the following beneficial effects:

[0018] (1) The detachable vane diffuser of the turbocharger of the present invention uses a positioning pin to position the blade, and the rubber washer provided at the bottom end of the positioning pin compresses to generate elastic force to squeeze the mounting block and the diffuser body. The blade is disassembled and assembled by applying force to rotate the fastening bolt, which is convenient for the maintenance, grinding and replacement of the blade.

[0019] (2) The detachable vane diffuser of the turbocharger of the present invention asymmetrically arranges a plurality of blades on the diffuser body. The blades are clamped on one side of the mounting block by the fastening bolt and are in close contact with the diffuser body for the installation of the blades. The mounting block and the clamping block clamp the diffuser body to increase the contact area with the diffuser body;

[0020] Through the provided limit pin and fastening bolt, the angle adjustment of the blade is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 is a schematic plan view of a detachable vane diffuser of a turbocharger according to an embodiment of the present invention;

[0023] Figure 2 is a schematic partial structure view of a detachable vane diffuser of a turbocharger according to an embodiment of the present invention;

[0024] Figure 3 This is a partial sectional view of a detachable vane diffuser for a turbocharger according to an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1. Diffuser body; 2. Vane; 3. Fixing member; 4. Installation port; 5. Fixing ring; 6. Installation block; 7. Clamping block; 8. Limiting member; 9. Rubber gasket; 10. Positioning groove; 11. Placement groove. Detailed implementation manners

[0027] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0030] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0031] Please refer to Figure 1 and 2As shown in the figure, a detachable vane diffuser for a turbocharger includes a diffuser body 1. A plurality of positioning grooves 10 are provided on the upper end surface of the diffuser body 1. An installation block 6 is placed in each positioning groove 10. The height of the installation block 6 corresponds to the depth of the positioning groove 10. A blade 2 is provided on each installation block 6. A plurality of blades 2 are arranged at equal circumferential distances along the installation opening 4 provided on the diffuser body 1. A plurality of placement grooves are provided on the lower end surface of the diffuser body 1. The placement grooves are arranged corresponding to the positioning grooves 10. A clamping block 7 is provided in the placement grooves. A fixing member 3 is provided on the diffuser body 1 for fixing the blade 2, the installation block 6, and the clamping block 7;

[0032] A limiting member 8 for limiting the blade 2 is further provided in the positioning groove 10;

[0033] By arranging a plurality of blades 2 asymmetrically on the diffuser body 1, the blade 2 is clamped on one side of the installation block 6 by a fastening bolt and is in close contact with the diffuser body 1 for the installation of the blade 2. The installation block 6 and the clamping block 7 clamp the diffuser body 1 to increase the contact area with the diffuser body 1; at the same time, through the arranged limit pin and fastening bolt, it is convenient to adjust the angle of the blade 2;

[0034] The blade 2 is positioned by a positioning pin. The rubber washer 9 provided at the bottom end of the positioning pin compresses to generate an elastic force to squeeze the installation block 6 and the diffuser body 1. The blade 2 is disassembled and assembled by applying force to rotate the fastening bolt, which is convenient for the maintenance, grinding, and replacement of the blade 2.

[0035] As Figure 3 shown, the limiting member 8 includes a limit pin. The limit pin is fixedly arranged in the positioning groove 10. A rubber washer 9 is arranged around the root of the limit pin; through the arranged rubber washer 9, the rubber washer 9 is correspondingly arranged in the accommodation groove provided at the bottom of the installation block 6. The rubber washer 9 is in close contact with the installation block 6, which can play a role in pressing the installation block 6 and supporting the blade 2.

[0036] A receiving groove corresponding to the rubber washer 9 is provided on the bottom end surface of the installation block 6;

[0037] A through pin hole is provided in the receiving groove of the installation block 6. The limit pin is correspondingly arranged in the pin hole; through the limit pin arranged in the positioning groove 10, the positioning and installation of the installation block 6 can be facilitated. At the same time, the limit pin penetrates outside the installation block 6 and corresponds to the positioning hole provided at the bottom end of the blade 2, achieving the technical effect of positioning the blade 2.

[0038] The positioning groove 10 and the placement groove are both triangular structures. The blade 2, the mounting block 6, and the clamping block 7 are all triangular prism structures. The mounting block 6 is correspondingly arranged in the positioning groove 10, and the clamping block 7 is correspondingly arranged in the placement groove. To prevent the mounting block 6 from rotating, the positioning groove 10 is set as a triangular structure, and the triangular prism-shaped mounting block 6 is correspondingly placed in the positioning groove 10. The position of the mounting block 6 is fixed firmly and reliably, which is convenient for the fixed installation of the blade 2.

[0039] One end of the blade 2 far from the mounting port 4 is provided with a notch, and the fixing member 3 is correspondingly arranged at the notch. By using the provided notch, it is convenient for the disassembly and assembly of the blade 2. In addition to the notch adopted in this patent application, other methods such as through holes can also be used, that is, as long as the installation and disassembly of the blade 2 can be realized.

[0040] Positioning holes corresponding to the limit pins are provided on the bottom end face of the blade 2.

[0041] The positioning holes are not shown in the drawings. The positioning holes are arc-shaped. The limit pins are correspondingly arranged in the positioning holes. The blade 2 is adjusted in angle along the setting direction of the positioning holes. The operator can adjust the angle of the blade 2 according to the on-site requirements, and use the fastening bolts to fix the position of the blade 2 with the adjusted angle.

[0042] The fixing member 3 is a fastening bolt. An installation hole penetrating through to the placement groove is provided in the positioning groove 10, and fixing holes corresponding to the fastening bolts are provided on both the mounting block 6 and the clamping block 7.

[0043] A fixing ring 5 is fixedly provided on the outer side of the diffuser body 1. By means of the fixing ring 5 provided on the outer side of the diffuser body 1, the strength of the diffuser body 1 can be improved.

[0044] When implementing this solution, the mounting block 6 is correspondingly inserted onto the limit pin. At this time, the mounting block 6 just falls into the positioning groove 10. The blade 2 is inserted onto the limit pin, and at the same time, the clamping block 7 is placed into the placement groove. The blade 2, the mounting block 6, and the clamping block 7 are fixed by bolts. When the fastening bolt is tightened, the elastic force generated by the compression of the rubber washer 9 provided at the bottom end of the limit pin squeezes the mounting block 6 and the diffuser body 1, pressing against the mounting block 6 tightly. The diffuser body 1 is clamped by the mounting block 6 and the clamping block 7, increasing the contact area with the diffuser body 1. By rotating the fastening bolt, the installation and disassembly of the blade 2 can be realized.

[0045] When it is necessary to adjust the angle of the blade 2, the blade 2 can be rotated. The blade 2 rotates along the setting direction of the positioning holes, and the fastening bolt is tightened to complete the fixation of the blade 2 with the adjusted angle.

[0046] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A detachable vane diffuser for a turbocharger, characterized in that: It includes a diffuser body (1). A plurality of positioning grooves (10) are provided on the upper end surface of the diffuser body (1). An installation block (6) is placed in each positioning groove (10). A blade (2) is provided on each installation block (6). The plurality of blades (2) are arranged at equal distances along the circumference of an installation opening (4) provided on the diffuser body (1). A plurality of placement grooves (11) are provided on the lower end surface of the diffuser body (1). The placement grooves (11) are arranged corresponding to the positioning grooves (10). A clamping block (7) is provided in the placement grooves (11). A fixing member (3) for fixing the blade (2), the installation block (6) and the clamping block (7) is provided on the diffuser body (1); A limiting member (8) for limiting the blade (2) is further provided in the positioning groove (10); The limiting member (8) includes a limiting pin. The limiting pin is fixedly arranged in the positioning groove (10). A rubber washer (9) is arranged around the root of the limiting pin; A receiving groove corresponding to the rubber washer (9) is provided on the bottom end surface of the installation block (6); A through pin hole is provided in the receiving groove of the installation block (6). The limiting pin is arranged corresponding to the pin hole; A positioning hole corresponding to the limiting pin is provided on the bottom end surface of the blade (2); The positioning hole is arc-shaped. The limiting pin is arranged corresponding to the positioning hole. The blade (2) is adjusted in angle along the setting direction of the positioning hole.

2. A detachable vane diffuser for a turbocharger according to claim 1, characterized in that: The positioning groove (10) and the placement groove are both triangular structures. The blade (2), the installation block (6) and the clamping block (7) are all triangular prism structures. The installation block (6) is arranged corresponding to the positioning groove (10). The clamping block (7) is arranged corresponding to the placement groove; One end of the blade (2) away from the installation opening (4) is provided with a notch. The fixing member (3) is arranged corresponding to the notch.

3. A detachable vane diffuser for a turbocharger according to claim 1, characterized in that: The fixing member (3) is a fastening bolt. An installation hole penetrating into the placement groove (11) is provided in the positioning groove (10). Fixing holes corresponding to the fastening bolt are provided on both the installation block (6) and the clamping block (7).

4. A detachable vane diffuser for a turbocharger according to claim 1, characterized in that: A fixing ring (5) is fixedly arranged on the outside of the diffuser body (1).

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