Volute assembly of turbocharger

Abstract

The volute assembly comprises a turbocharging volute, and an air inlet pipe end which is integrally cast is arranged at the air inlet end of the turbocharging volute; the limiting assembly comprises a connecting pipe end integrally cast with the air inlet pipe end, a fixing ring pipe installed on the inner surface of the connecting pipe end, guide columns evenly distributed and an expansion lantern ring installed in the connecting pipe end in a split mode. The mounting assembly comprises a mounting pipe arranged at the end of the pipeline A in a sleeving mode and a first locking ring connected with the mounting pipe in a spiral combination mode, and an inner limiting ring and symmetrically-distributed fixing arc plates are arranged on the surface of the mounting pipe; a sealing design is adopted in the combination position of the pressurizing volute and the exhaust pipeline, a fixing ring pipe and a sealing ring a for sealing the installation pipe are arranged at the connecting pipe end, and the expansion lantern ring distributed between the outer surface of the installation pipe and the connecting pipe end serves as a layer of sealing design and can seal the combination face between the installation pipe and the connecting pipe end. And foreign matters are prevented from entering the interior of the turbocharging volute.

Description

Technical Field

[0001] The invention belongs to the technical field of turbocharger accessories, and in particular relates to a volute assembly of a turbocharger. Background Art

[0002] A turbocharger is actually an air compressor. The Chinese utility model patent application number CN202223570317.8 discloses a turbocharger volute. Its conventional operating principle is to use the inertial impact of the exhaust gas discharged by the engine to drive the turbine in the volute chamber. The exhaust gas discharged by the engine enters from the volute air inlet, and the turbine drives the coaxial impeller. The impeller presses the air sent by the air filter pipe to pressurize it into the cylinder. The volute is an important part of the turbocharger.

[0003] When the boost volute is in use, the boost volute and the exhaust duct are generally connected by flange bolts. Although the connection method is simple, the flange joint end surface is easily damaged by foreign matter. The flange-connected boost volute and the exhaust duct are poorly sealed, which causes foreign matter to enter the boost volute and cause malfunctions. When the boost volute is in use, there is a problem that there is no sealing design at the joint between the boost volute and the exhaust duct. For this reason, the present application proposes a volute assembly of a turbocharger. Summary of the invention

[0004] The object of the present invention is to provide a volute assembly of a turbocharger to solve the problem of lack of sealing design at the joint between the turbocharger volute and the exhaust pipe mentioned in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a volute assembly of a turbocharger, comprising

[0006] A turbocharger volute, wherein an air intake end of the turbocharger volute is provided with an integrally cast air intake pipe end;

[0007] The defined assembly includes a connecting pipe end integrally cast with the air inlet pipe end, a fixing ring pipe installed on the inner surface of the connecting pipe end and evenly distributed guide pillars, and a tightening sleeve installed in a split manner inside the connecting pipe end;

[0008] The installation component includes a mounting tube sleeved on the end of the pipe A, and a first locking ring connected to the mounting tube by a spiral combination. An inner limiting ring and symmetrically distributed fixed arc plates are provided on the surface of the mounting tube, and fixed plates are provided on both sides of the fixed arc plates. A sliding arc block is provided on the outer surface of the first locking ring, and a locking screw passes through the sliding arc block.

[0009] Preferably, a sealing ring a is sleeved on the outer surface of the fixed ring tube, the inner diameters of the mounting tube and the inner limiting ring are the same, and the inner surface of the inner limiting ring matches the outer surface of the sealing ring a.

[0010] Preferably, a second circular groove cooperating with the guide column is provided on the side surface of the mounting tube, the outer diameter of the mounting tube is the same as the inner diameter of the expansion ring, and a locking bolt passes through the expansion ring.

[0011] Preferably, a split limiting arc block is provided on the outer surface of the connecting pipe end, a welded clamping column a is provided on the limiting arc block, and a first circular groove cooperating with the clamping column a is provided on the outer surface of the mounting tube.

[0012] Preferably, the outer surface of the connecting pipe end is sleeved with a second locking ring, the outer surface of one end of the connecting pipe end is provided with an external thread, the inner surface of the second locking ring is provided with an internal thread, and the outer diameter of the limiting arc block is the same as the outer diameter of the connecting pipe end.

[0013] Preferably, an air guide is provided inside the air inlet pipe end, which includes a guide plate that matches the inner surface of the air inlet pipe end, an outer filter connected to one end of the guide plate, and the outer filter includes a first arc mesh plate connected to the guide plate and a first elliptical mesh plate connected to one end of the first arc mesh plate.

[0014] Preferably, a filter element is provided in the air inlet pipe end, and the filter element includes a fitting plate that matches the inner surface of the air inlet pipe end, an inner filter screen connected to the fitting plate, and a stainless steel filter screen installed between the inner filter screen and the outer filter screen. The inner filter screen has the same shape as the outer filter screen, and the inner filter screen includes a second arc mesh plate and a second elliptical mesh plate.

[0015] Preferably, a guide block with a semi-elliptical cross-section is provided on the inner surface of the bonding plate, a semi-polyhedral hollow sphere is provided on the surface of the guide block, the inner filter screen and the outer filter screen have the same pore size, and the diameter of the filter holes on the stainless steel filter screen is the same as the radius of the filter holes on the inner filter screen.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, a sealing design is provided at the joint position between the turbocharger volute and the exhaust pipe, a fixing ring tube and a sealing ring a for sealing the mounting tube are provided on the connecting pipe end, and an expansion sleeve ring distributed between the outer surface of the mounting tube and the connecting pipe end serves as a sealing design, which can seal the joint surface between the mounting tube and the connecting pipe end to prevent foreign matter from entering the interior of the turbocharger volute. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a side view structural schematic diagram of the connecting pipe end of the present invention;

[0020] Figure 3 It is a side view structural schematic diagram of the installation pipe of the present invention;

[0021] Figure 4 It is a schematic diagram of the side view structure of the limiting arc block of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the air intake pipe end in the BB direction of the present invention;

[0023] Figure 6 It is a schematic cross-sectional structure diagram of the air intake pipe end of the present invention;

[0024] In the figure: 1. turbocharger volute; 2. mounting tube; 3. first locking ring; 5. fitting plate; 6. inner filter; 7. stainless steel filter; 11. intake pipe end; 12. connecting pipe end; 13. second locking ring; 14. expansion sleeve; 21. fixed arc plate; 22. first circular groove; 23. inner limiting ring; 31. sliding arc block; 41. guide plate; 42. outer filter; 51. guide block; 121. limiting arc block; 122. fixed ring tube; 123. guide column; 211. fixing plate; 311. locking screw; 511. semi-polyhedral hollow ball; 121a. clamping column; 122a. sealing ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example 1

[0027] See also Figures 1 to 4The present invention provides a technical solution: a turbocharger volute assembly, including a turbocharger volute 1, an intake pipe end 11 integrally cast on the intake end of the turbocharger volute 1, exhaust gas discharged from the engine enters the interior of the turbocharger volute 1 from the connecting pipe end 12 and the intake pipe end 11, the principle of the turbocharger is a conventional technical method, and this application will not be described in detail; the limited component includes a connecting pipe end 12 integrally cast with the intake pipe end 11, a fixing installed on the inner surface of the connecting pipe end 12 The ring tube 122 and the evenly distributed guide columns 123 are separately installed in the expansion sleeve 14 inside the connecting pipe end 12. When the mounting pipe 2 is installed, the end of the mounting pipe 2 is inserted into the inside of the connecting pipe end 12. The guide column 123 plays a limiting role, so that the mounting pipe 2 is accurately installed. The locking bolts installed on the expansion sleeve 14 are tightened to expand the expansion sleeve 14 to firmly hold the mounting pipe 2. The connecting pipe end 12 is provided with a fixed ring tube 122 and a sealing ring 122a for sealing the mounting pipe 2. The outer surface of the mounting pipe 2 is connected to the connecting pipe end 12. An expansion sleeve 14 is distributed between the pipe ends 12. The expansion sleeve 14 is designed as a sealing layer, which can seal the joint surface between the mounting pipe 2 and the connecting pipe end 12 to prevent foreign matter from entering the interior of the turbocharger volute 1; the mounting assembly includes a mounting pipe 2 sleeved on the end of the pipeline A, a first locking ring 3 connected to the mounting pipe 2 by a spiral combination, an inner limiting ring 23 and symmetrically distributed fixed arc plates 21 are provided on the surface of the mounting pipe 2, and fixed plates 211 are provided on both sides of the fixed arc plate 21. The fixed plate 21 1 is combined with the fixed arc plate 21 by a conventional method, a sliding arc block 31 is provided on the outer surface of the first locking ring 3, the first locking ring 3 and the fixed arc plate 21 are screwed together by threads, the position of the sliding arc block 31 is moved to be located between the opposite fixed plates 211, a locking screw 311 is passed through the sliding arc block 31, the locking screw 311 is tightened, the locking screw 311 firmly holds the fixed plate 211, so that the fixed arc plate 21 clamps the end of the pipeline A, and the installation pipe 2 is firmly connected to the end of the pipeline A.

[0028] In this embodiment, a sealing ring 122a is sleeved on the outer surface of the fixed ring tube 122, the inner diameters of the mounting tube 2 and the inner limiting ring 23 are the same, the inner surface of the inner limiting ring 23 is consistent with the outer surface of the sealing ring 122a, and a second circular groove cooperating with the guide column 123 is opened on the side of the mounting tube 2. The outer diameter of the mounting tube 2 is the same as the inner diameter of the expansion sleeve 14. A locking bolt runs through the expansion sleeve 14. The locking bolt is tightened to expand the expansion sleeve 14 to firmly hold the mounting tube 2. A fixed ring tube 122 and a sealing ring 122a for sealing the mounting tube 2 are provided on the connecting tube end 12. The expansion sleeve 14 distributed between the outer surface of the mounting tube 2 and the connecting tube end 12 is designed as a layer of sealing, which can seal the joint surface between the mounting tube 2 and the connecting tube end 12 to prevent foreign matter from entering the interior of the turbocharger volute 1.

[0029] In this embodiment, a split limiting arc block 121 is provided on the outer surface of the connecting pipe end 12, and a welded clamping column 121a is provided on the limiting arc block 121. A first circular groove 22 cooperating with the clamping column 121a is opened on the outer surface of the mounting tube 2. The limiting arc block 121 is installed on the connecting pipe end 12, and the clamping column 121a is inserted into the first circular groove 22 on the mounting tube 2 to limit the connecting pipe end 12. At this time, the spacing between the expansion ring 14 also installed in the connecting pipe end 12 and the clamping column 121a is 1 cm, and the expansion ring 14 does not affect the insertion of the clamping column 121a.

[0030] In this embodiment, a second locking ring 13 is sleeved on the outer surface of the connecting pipe end 12, an outer surface of one end of the connecting pipe end 12 is provided with an external thread, an inner surface of the second locking ring 13 is provided with an internal thread, an outer diameter of the limiting arc block 121 is the same as the outer diameter of the connecting pipe end 12, the second locking ring 13 is firmly connected to the connecting pipe end 12, and the second locking ring 13 covers the limiting arc block 121 to prevent the limiting arc block 121 from loosening.

[0031] Steps for connecting the turbocharger volute 1 to the exhaust pipe A of the engine:

[0032] The mounting pipe 2 and the first locking ring 3 are sleeved on the outer side of the end of the pipe A, and the first locking ring 3 is rotated to make the first locking ring 3 spirally connected with the fixed arc plate 21 on the mounting pipe 2;

[0033] Move the position of the sliding arc block 31 so that it is between the opposite fixed plates 211, tighten the locking screw 311, and the locking screw 311 firmly holds the fixed plate 211, so that the fixed arc plate 21 clamps the end of the pipeline A, so that the installation pipe 2 is firmly connected to the end of the pipeline A;

[0034] The end of the installation pipe 2 is inserted into the connecting pipe end 12, and the guide column 123 plays a limiting role, so that the installation pipe 2 is installed accurately;

[0035] The locking bolt is tightened to expand the expansion sleeve 14 to firmly hold the mounting pipe 2. The connecting pipe end 12 is provided with a fixing ring pipe 122 and a sealing ring 122a for sealing the mounting pipe 2. The expansion sleeve 14 distributed between the outer surface of the mounting pipe 2 and the connecting pipe end 12 is designed as a layer of sealing, which can seal the joint surface between the mounting pipe 2 and the connecting pipe end 12 to prevent foreign matter from entering the interior of the turbocharger volute 1.

[0036] The limiting arc block 121 is installed on the connecting pipe end 12, and the clamping column 121a is inserted into the first circular groove 22 on the mounting pipe 2 to limit the connecting pipe end 12 and prevent the connecting pipe end 12 from loosening;

[0037] The second locking ring 13 rotates, and the second locking ring 13 is screwed and connected with the connecting pipe end 12 through threads, and the second locking ring 13 covers the limiting arc block 121 to prevent the limiting arc block 121 from loosening;

[0038] To sum up: the joint position between the turbocharger volute and the exhaust pipe is designed with a seal, and a fixing ring tube 122 and a sealing ring 122a for sealing the mounting tube 2 are provided on the connecting pipe end 12. The expansion sleeve 14 distributed between the outer surface of the mounting tube 2 and the connecting pipe end 12 serves as a sealing design, which can seal the joint surface between the mounting tube 2 and the connecting pipe end 12 to prevent foreign matter from entering the interior of the turbocharger volute 1.

[0039] Example 2

[0040] See also Figures 1 to 6 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment. In order to further increase the filtering effect on the exhaust gas, an air guide is provided inside the intake pipe end 11, and the air guide includes a guide plate 41 that matches the inner surface of the intake pipe end 11, and an outer filter screen 42 connected to one end of the guide plate 41. The outer filter screen 42 includes a first arc mesh plate connected to the guide plate 41, and a first elliptical mesh plate connected to one end of the first arc mesh plate. The outer filter screen 42 made of stainless steel filters the exhaust gas. A filter is provided inside the intake pipe end 11, and the filter includes a bonding plate 5 that matches the inner surface of the intake pipe end 11, an inner filter screen 6 connected to the bonding plate 5, and a stainless steel filter screen 7 installed between the inner filter screen 6 and the outer filter screen 42. The inner filter screen 6 has the same shape as the outer filter screen 42. The inner filter screen 6 includes a second arc mesh plate and a second elliptical mesh plate. The inner filter screen 6, the stainless steel filter screen 7 and the outer filter screen 42 filter impurities in the exhaust gas, thereby further increasing the filtering effect on the exhaust gas.

[0041] In this embodiment, a guide block 51 with a semi-elliptical cross-section is provided on the inner surface of the bonding plate 5, and a semi-polyhedral hollow ball 511 is provided on the surface of the guide block 51. The apertures of the inner filter screen 6 and the outer filter screen 42 are the same, and the diameter of the filter holes on the stainless steel filter screen 7 is the same as the radius of the filter holes on the inner filter screen 6. The semi-polyhedral hollow ball 511 made of stainless steel material on the guide block 51 blocks large particles of impurities in the exhaust gas and prevents impurities from entering the interior of the turbocharger volute 1.

[0042] In summary: the inner filter 6, the stainless steel filter 7 and the outer filter 42 of the three-layer filtering design filter impurities in the exhaust gas, further increasing the filtering effect on the exhaust gas. The semi-polyhedral hollow ball 511 made of stainless steel material on the guide block 51 blocks large particles of impurities in the exhaust gas, preventing impurities from entering the interior of the turbocharger volute 1.

[0043] Although embodiments of the present invention have been shown and described (see the above detailed description for details), it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A volute assembly of a turbocharger, characterized in that: include A turbocharger volute (1), wherein an air intake end of the turbocharger volute (1) is provided with an integrally cast air intake pipe end (11); A defined assembly comprises a connecting pipe end (12) integrally cast with an air intake pipe end (11), a fixing ring pipe (122) mounted on the inner surface of the connecting pipe end (12) and evenly distributed guide columns (123), and a tightening sleeve (14) separately mounted inside the connecting pipe end (12); The mounting assembly comprises a mounting tube (2) sleeved on the end of a pipe A, and a first locking ring (3) connected to the mounting tube (2) by a spiral assembly. An inner limiting ring (23) and symmetrically distributed fixed arc plates (21) are provided on the surface of the mounting tube (2), and fixed plates (211) are provided on both sides of the fixed arc plates (21). A sliding arc block (31) is provided on the outer surface of the first locking ring (3), and a locking screw (311) passes through the sliding arc block (31).

2. The volute assembly of a turbocharger according to claim 1, characterized in that: The outer surface of the fixed ring tube (122) is sleeved with a sealing ring (122a); the inner diameters of the mounting tube (2) and the inner limiting ring (23) are the same; the inner surface of the inner limiting ring (23) matches the outer surface of the sealing ring (122a).

3. The volute assembly of a turbocharger according to claim 1, characterized in that: A second circular groove cooperating with the guide column (123) is provided on the side of the mounting tube (2); the outer diameter of the mounting tube (2) is the same as the inner diameter of the expansion ring (14); and a locking bolt passes through the expansion ring (14).

4. The volute assembly of a turbocharger according to claim 1, characterized in that: A split limiting arc block (121) is provided on the outer surface of the connecting pipe end (12), a welded clamping column (121a) is provided on the limiting arc block (121), and a first circular groove (22) cooperating with the clamping column (121a) is provided on the outer surface of the mounting pipe (2).

5. The volute assembly of a turbocharger according to claim 4, characterized in that: The outer surface of the connecting pipe end (12) is sleeved with a second locking ring (13), the outer surface of one end of the connecting pipe end (12) is provided with an external thread, the inner surface of the second locking ring (13) is provided with an internal thread, and the outer diameter of the limiting arc block (121) is the same as the outer diameter of the connecting pipe end (12).

6. The volute assembly of a turbocharger according to claim 1, characterized in that: An air guide is provided inside the air intake pipe end (11), the air guide comprising a guide plate (41) matched with the inner surface of the air intake pipe end (11), an outer filter screen (42) connected to one end of the guide plate (41), and the outer filter screen (42) comprising a first arc mesh plate connected to the guide plate (41) and a first elliptical mesh plate connected to one end of the first arc mesh plate.

7. The volute assembly of a turbocharger according to claim 6, characterized in that: A filter element is provided inside the air intake pipe end (11), the filter element comprising a bonding plate (5) matched with the inner surface of the air intake pipe end (11), an inner filter screen (6) connected to the bonding plate (5), and a stainless steel filter screen (7) installed between the inner filter screen (6) and the outer filter screen (42), wherein the inner filter screen (6) has the same shape as the outer filter screen (42), and the inner filter screen (6) comprises a second arc screen plate and a second elliptical screen plate.

8. The volute assembly of a turbocharger according to claim 7, characterized in that: A guide block (51) having a semi-elliptical cross-section is provided on the inner surface of the bonding plate (5), and a semi-polyhedral hollow ball (511) is provided on the surface of the guide block (51). The inner filter screen (6) and the outer filter screen (42) have the same aperture diameter, and the diameter of the filter hole on the stainless steel filter screen (7) is the same as the radius of the filter hole on the inner filter screen (6).

Images