Turbocharger

Abstract

The utility model relates to the technical field of turbocharging, in particular to a turbocharger. According to the technical scheme, the device comprises a connecting pipe, blades and a rotating shaft, discs are welded to the positions, close to the two ends, of the outer surface of the rotating shaft, and the multiple blades are clamped to the positions, close to the outer sides of the two discs, of the outer surface of the rotating shaft at equal intervals in an annular array; a plurality of dovetail grooves are formed in the outer surface, close to the outer sides of the two discs, of the rotating shaft in an annular array at equal intervals, a dovetail block is arranged on the side, close to the rotating shaft, of the outer surface of each blade, and a clamping groove is formed in the side, close to the rotating shaft, of the outer surface of each dovetail block. According to the utility model, the assembly of the turbine blade in the turbocharger can be completed in a clamping manner, so that the damaged blade is convenient to replace, the whole turbine does not need to be replaced, the maintenance cost is reduced, the production and processing difficulty is reduced, and the processing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of turbocharging, in particular to a turbocharger. Background Art

[0002] A turbocharger is actually an air compressor that increases the intake volume by compressing air. It uses the inertial force of the exhaust gas discharged by the engine to drive the turbine in the turbine chamber. The turbine in turn drives the coaxial blades, which pressurize the air sent from the air filter pipe and pressurize it into the cylinder. When the engine speed increases, the exhaust gas discharge speed and the turbine speed also increase synchronously, and the blades compress more air into the cylinder. The increase in air pressure and density can burn more fuel. By increasing the amount of fuel and adjusting the engine speed accordingly, the engine output power can be increased.

[0003] The turbine of a current turbocharger is usually an integral part, and when the turbine blades are damaged, they need to be replaced as a whole, resulting in high maintenance and replacement costs, and also causing waste of resources. In addition, the integral turbine is difficult to manufacture and has high processing costs. For this reason, we propose a turbocharger. Utility Model Content

[0004] The utility model aims to provide a turbocharger which can complete the assembly of turbine blades in the turbocharger in a snap-on manner, thereby facilitating the replacement of damaged blades without replacing the entire turbine, thereby reducing the maintenance cost and the difficulty of production and processing, thereby reducing the advantages of processing cost. It solves the problem that in current turbochargers, the turbine is usually an integral part, and the turbine blades need to be replaced as a whole after being damaged, resulting in high maintenance and replacement costs, and also causes waste of resources. In addition, the difficulty of processing and producing the integral turbine is also relatively large, and the processing cost is high.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a turbocharger comprises a connecting pipe, a blade and a rotating shaft, wherein the outer surface of the rotating shaft is welded with discs near both ends, the outer surface of the rotating shaft is provided with a plurality of blades equidistantly connected in an annular array at positions near the outer sides of the two discs, the outer surface of the rotating shaft is provided with a plurality of dovetail grooves equidistantly in an annular array near the outer sides of the two discs, each of the outer surfaces of the blades is provided with a dovetail block on one side near the rotating shaft, each of the outer surfaces of the dovetail blocks is provided with a slot on one side near the rotating shaft, both ends of the rotating shaft are provided with insertion holes, each of the insertion holes is movably plugged with an insertion block, the outer surface of each of the insertion blocks is provided with a plurality of slide grooves equidistantly in an annular array, each of the slide grooves is slidably plugged with a sliding rod, the outer surface of each of the sliding rods is provided with an inclined surface, the outer side of each of the insertion blocks is provided with a threaded countersunk hole, each of the threaded countersunk holes is movably plugged with a screw, and the end of each of the screws is fixedly connected with a conical block.

[0006] Preferably, a groove is provided on the outer surface of each slide rod, and an elastic ring is provided inside each plug block, and the elastic ring passes through the groove. When the conical block is not in contact with the inclined surface of the slide rod, the elastic force of the elastic ring causes the slide rod to slide from the slide groove into the inside of the plug block, which facilitates the disassembly and assembly of the plug block, and also facilitates the separation of the slide rod and the slot.

[0007] Preferably, a plurality of slots are equidistantly arranged in a circular array on the outer sides of the two disks, so that the contact parts of the blades and the disks are inserted into the slots, thereby improving the stability of the blades.

[0008] Preferably, both ends of the connecting pipe are fixedly connected to the exhaust gas pump housing and the compression pump housing, and the two discs are respectively located inside the compression pump housing and the exhaust gas pump housing.

[0009] Preferably, the exhaust gas pump housing and the outer side are fixedly connected with an exhaust gas exhaust pipe, the front surface of the exhaust gas pump housing is fixedly connected with an exhaust gas intake pipe, the outer side of the compression pump housing is fixedly connected with a compression intake pipe, and the front surface of the compression pump housing is fixedly connected with a compression exhaust pipe.

[0010] Preferably, annular grooves are provided inside the exhaust gas exhaust pipe and the compression intake pipe, and sound-absorbing cotton is fixedly installed inside the two annular grooves. The hot exhaust gas discharged by the engine enters the exhaust gas pump housing from the exhaust gas intake pipe, and is then discharged from the exhaust gas exhaust pipe. The outside air enters the compression pump housing from the compression intake pipe. Large noise will be generated at the pipe openings of the compression intake pipe and the exhaust gas exhaust pipe, and the noise will be reduced by the sound-absorbing cotton.

[0011] Preferably, the upper surface and the lower surface of the connecting pipe are respectively provided with a lubricating oil inlet hole and a lubricating oil outlet hole.

[0012] Preferably, connecting plates are symmetrically welded on both sides of the front surface of the connecting pipe, a fixing plate is welded on the front surface of the connecting plate, and mounting holes are arranged on the front surface of the fixing plate near four corners.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model achieves the effect of completing the assembly of turbine blades in a turbocharger by means of a snap-on connection by arranging a rotating shaft, a disc, a blade, a dovetail groove, a dovetail strip, a socket, an insert block, a threaded countersunk hole, a screw rod, a conical block, a slide groove, a slide rod and an inclined surface, so as to facilitate the replacement of damaged blades without replacing the entire turbine, thereby reducing the maintenance cost and the difficulty of production and processing, thereby reducing the processing cost. When assembling the blade, the dovetail block on the blade slides into the dovetail groove, the insert block is inserted into the socket, and the screw rod is turned to make the conical block contact with the inclined surface of the slide rod. As the conical block moves, the slide rod is forced to move from the inside of the insert block to the outside, and one end of the slide rod is inserted into the slot to fix the blade. Similarly, the reverse operation can be performed when removing the blade.

[0015] 2. The utility model achieves the effect of facilitating the assembly and disassembly of the plug block and the separation of the slide bar and the slot by providing the groove and the elastic ring. When the conical block is not in contact with the inclined surface of the slide bar, the elastic force of the elastic ring causes the slide bar to slide from the slide groove into the interior of the plug block, which facilitates the assembly and disassembly of the plug block and also facilitates the separation of the slide bar and the slot.

[0016] 3. The utility model provides a slot so that the contact part between the blade and the disc is inserted into the slot, thereby improving the stability of the blade.

[0017] 4. The utility model achieves the effect of reducing the noise of the turbocharger by arranging annular grooves and sound-absorbing cotton. The hot exhaust gas discharged by the engine enters the exhaust pump housing from the exhaust gas intake pipe and is then discharged from the exhaust gas exhaust pipe. The outside air enters the compression pump housing from the compression intake pipe. Large noise will be generated at the pipe openings of the compression intake pipe and the exhaust gas exhaust pipe, and the noise will be reduced by the sound-absorbing cotton. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 It is a partial three-dimensional schematic diagram of the blade and the rotating shaft of the utility model;

[0022] Figure 5 It is a partial three-dimensional schematic diagram of the plug block of the utility model.

[0023] Figure numerals: 1. exhaust pump housing; 2. connecting pipe; 3. connecting plate; 4. compression pump housing; 5. compression exhaust pipe; 6. compression intake pipe; 7. mounting hole; 8. fixing plate; 9. exhaust intake pipe; 10. exhaust pipe; 11. annular groove; 12. sound-absorbing cotton; 13. blade; 14. rotating shaft; 15. lubricating oil inlet hole; 16. lubricating oil outlet hole; 17. slot; 18. slide rod; 19. inclined surface; 20. conical block; 21. socket; 22. plug block; 23. threaded countersunk hole; 24. screw; 25. dovetail groove; 26. dovetail block; 27. disc; 28. slot; 29. ​​slide groove; 30. groove; 31. elastic ring. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Embodiment 1

[0026] like Figure 1-Figure 5 As shown, a turbocharger proposed by the utility model includes a connecting pipe 2, blades 13 and a rotating shaft 14. Discs 27 are welded on the outer surface of the rotating shaft 14 near both ends. The rotating shaft 14 is rotatably installed inside the connecting pipe 2. The upper surface and the lower surface of the connecting pipe 2 are respectively provided with a lubricating oil inlet hole 15 and a lubricating oil outlet hole 16. The two ends of the connecting pipe 2 are respectively fixedly connected to an exhaust gas pump housing 1 and a compression pump housing 4, and the two discs 27 are respectively located inside the compression pump housing 4 and the exhaust gas pump housing 1. The exhaust gas pump housing 1 and the outside are fixedly connected to an exhaust gas exhaust pipe 10. The front surface of the exhaust gas pump housing 1 is fixedly connected to an exhaust gas intake pipe 9. The outside of the compression pump housing 4 is fixedly connected to The compression intake pipe 6 and the front surface of the compression pump housing 4 are fixedly connected with a compression exhaust pipe 5. The hot exhaust gas discharged by the engine enters the exhaust pump housing 1 from the exhaust intake pipe 9 and is then discharged from the exhaust exhaust pipe 10. The outside air enters the compression pump housing 4 from the compression intake pipe 6. The compressed outside air is discharged from the compression exhaust pipe 5. The outer surface of the rotating shaft 14 is close to the outer side of the two discs 27 and is equidistantly connected with a plurality of blades 13 in an annular array. The outer sides of the two discs 27 are equidistantly provided with a plurality of slots 28 in an annular array. The contact part between the blade 13 and the disc 27 is inserted into the slot 28, thereby improving the stability of the blade 13.

[0027] The outer surface of the rotating shaft 14 is close to the outer sides of the two disks 27 and is evenly spaced in a circular array with a plurality of dovetail grooves 25. The outer surface of each blade 13 is close to the rotating shaft 14 and is provided with a dovetail block 26. The outer surface of each dovetail block 26 is close to the rotating shaft 14 and is provided with a slot 17. Both ends of the rotating shaft 14 are provided with a socket 21. Each socket 21 is movably plugged with a plug 22. The outer surface of each plug 22 is evenly spaced in a circular array with a plurality of slide grooves 29. Each slide groove 29 is slidably plugged in. A slide rod 18 is connected, and the slide rod 18 is a rectangular rod. Each slide rod 18 is provided with an inclined surface 19 on the outer surface, and the inclined surface 19 is located inside the plug block 22. A threaded countersunk hole 23 is provided on the outer side of each plug block 22. A screw rod 24 is movably inserted inside each threaded countersunk hole 23. A conical block 20 is fixedly connected to the end of each screw rod 24. Connecting plates 3 are symmetrically welded on both sides of the front surface of the connecting pipe 2. A fixing plate 8 is welded on the front surface of the connecting plate 3. Mounting holes 7 are provided on the front surface of the fixing plate 8 near the four corners.

[0028] When the blade 13 is assembled, the dovetail block 26 on the blade 13 slides into the dovetail groove 25, the plug block 22 is inserted into the jack 21, and the screw 24 is turned to make the conical block 20 contact the inclined surface 19 of the slide bar 18. As the conical block 20 moves, the slide bar 18 is forced to move from the inside of the plug block 22 to the outside, and one end of the slide bar 18 is inserted into the slot 17, so that the blade 13 is fixed. Similarly, the reverse operation can be performed when the blade 13 is disassembled. The hot exhaust gas discharged by the engine enters the exhaust pump housing 1 from the exhaust gas intake pipe 9 and is then discharged from the exhaust gas exhaust pipe 10. The outside air enters the compression pump housing 4 from the compression intake pipe 6, and the compressed outside air is discharged from the compression exhaust pipe 5.

[0029] Embodiment 2

[0030] like Figure 1-Figure 5 As shown, a turbocharger proposed by the utility model, compared with the first embodiment, this embodiment also includes a groove 30 provided on the outer surface of each slide bar 18, an elastic ring 31 is provided inside each plug block 22, and the elastic ring 31 passes through the groove 30, when the conical block 20 is not in contact with the inclined surface 19 of the slide bar 18, the elastic force of the elastic ring 31 makes the slide bar 18 slide from the slide groove 29 into the plug block 22, that is, one end of the slide bar 18 is located in the slide groove 29, and the other end is located in the plug block 22, which is convenient for the disassembly and assembly of the plug block 22, and also convenient for the separation of the slide bar 18 and the card groove 17, and an annular groove 11 is provided inside the exhaust gas exhaust pipe 10 and the compression intake pipe 6, and sound-absorbing cotton 12 is fixedly installed inside the two annular grooves 11.

[0031] In this embodiment, the hot exhaust gas discharged by the engine enters the exhaust pump housing 1 from the exhaust gas intake pipe 9, and is then discharged from the exhaust gas exhaust pipe 10. The outside air enters the compression pump housing 4 from the compression intake pipe 6. A large noise will be generated at the pipe openings of the compression intake pipe 6 and the exhaust gas exhaust pipe 10, and the noise will be reduced by the sound-absorbing cotton 12.

[0032] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A turbocharger, comprising a connecting pipe (2), blades (13) and a rotating shaft (14), characterized in that: The outer surface of the rotating shaft (14) is welded with disks (27) near both ends, and the outer surface of the rotating shaft (14) is provided with a plurality of blades (13) equidistantly clamped in an annular array at positions near the outsides of the two disks (27). The outer surface of the rotating shaft (14) is provided with a plurality of dovetail grooves (25) equidistantly in an annular array near the outsides of the two disks (27). A dovetail block (26) is provided on one side of the outer surface of each blade (13) near the rotating shaft (14), and a clamping groove (17) is provided on one side of the outer surface of each dovetail block (26) near the rotating shaft (14). 4) Both ends are provided with insertion holes (21), each of the insertion holes (21) is movably connected with an insertion block (22), the outer surface of each insertion block (22) is provided with a plurality of slide grooves (29) equidistantly arranged in a circular array, each of the slide grooves (29) is slidably connected with a slide rod (18), the outer surface of each slide rod (18) is provided with an inclined surface (19), the outer side of each insertion block (22) is provided with a threaded countersunk hole (23), each of the threaded countersunk holes (23) is movably connected with a screw rod (24), and the end of each screw rod (24) is fixedly connected with a conical block (20).

2. A turbocharger according to claim 1, characterized in that: A groove (30) is arranged on the outer surface of each sliding rod (18), and an elastic ring (31) is arranged inside each inserting block (22), and the elastic ring (31) passes through the groove (30).

3. A turbocharger according to claim 1, characterized in that: A plurality of slots (28) are equidistantly arranged on the outer sides of the two disks (27) in a circular array.

4. A turbocharger according to claim 1, characterized in that: The two ends of the connecting pipe (2) are respectively fixedly connected to the exhaust gas pump housing (1) and the compression pump housing (4), and the two discs (27) are respectively located inside the compression pump housing (4) and the exhaust gas pump housing (1).

5. A turbocharger according to claim 4, characterized in that: The exhaust gas pump housing (1) and the outer side are fixedly connected to an exhaust gas exhaust pipe (10), the front surface of the exhaust gas pump housing (1) is fixedly connected to an exhaust gas intake pipe (9), the outer side of the compression pump housing (4) is fixedly connected to a compression intake pipe (6), and the front surface of the compression pump housing (4) is fixedly connected to a compression exhaust pipe (5).

6. A turbocharger according to claim 5, characterized in that: The waste gas exhaust pipe (10) and the compressed air intake pipe (6) are both provided with an annular groove (11), and sound-absorbing cotton (12) is fixedly installed inside the two annular grooves (11).

7. A turbocharger according to claim 1, characterized in that: The upper surface and the lower surface of the connecting pipe (2) are respectively provided with a lubricating oil inlet hole (15) and a lubricating oil outlet hole (16).

8. The turbocharger according to claim 1, characterized in that: Connecting plates (3) are symmetrically welded on both sides of the front surface of the connecting pipe (2), a fixing plate (8) is welded on the front surface of the connecting plate (3), and mounting holes (7) are arranged on the front surface of the fixing plate (8) near four corners.

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