Detection equipment for turbocharger shell

Abstract

The utility model discloses detection equipment for a turbocharger shell, which belongs to the technical field of turbochargers and comprises a tool box, a lower sealing mechanism is arranged on the top surface of the tool box, an L-shaped support is arranged on the rear portion of the tool box, an upper sealing mechanism is arranged at the top end of the L-shaped support, and a lifting groove is formed in the back portion of the L-shaped support. According to the lifting device, the lifting base is limited through sliding between the sliding rod and the lifting base, the lifting base is driven to move up and down through threaded fit between the one-way lead screw and the lifting base, the stability of vertical movement of the lifting base is guaranteed, and the lifting base drives the lifting box and the clamping plate to move up and down; the two clamping plates are driven to get close to each other to clamp and fix the turbocharger shell through screw-thread fit between the two-way screw rod and the moving seat, so that the detected turbocharger shell is prevented from loosening, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of turbochargers, and in particular to a detection device for a turbocharger housing. Background Art

[0002] A turbocharger is essentially an air compressor that increases intake air volume by compressing air. It utilizes the inertial force of the engine's exhaust gases to propel the turbine within the turbine chamber. The turbine, in turn, drives a coaxial impeller, which pressurizes air delivered from the air filter duct and pumps it into the cylinder. As engine speed increases, the exhaust gas velocity and turbine speed also increase, causing the impeller to compress more air into the cylinder. This increased air pressure and density allows for the combustion of more fuel. By increasing the fuel flow and adjusting the engine speed accordingly, the engine's output power can be increased. After the turbocharger housing is manufactured, its airtightness needs to be tested.

[0003] After searching, the utility model patent with announcement number CN214667512U discloses a sealing detection mechanism for the intermediate housing of an automobile turbocharger, including a tooling seat, a detection frame, a splint, a first clamping block, a second clamping block and a gas pressure sensor. The detection frame is fixedly connected to the tooling seat, and the upper surface of the tooling seat is bolted with a first clamping block, and a gas pressure sensor is provided on the upper part of the first clamping block; a motor seat is welded to the side wall of one end of the detection frame, and a motor is provided on the upper part of the motor seat, and the output shaft of the motor is fixed to a rotating shaft through a coupling, and one end of the rotating shaft is fixedly connected to a lead screw through a coupling, and the outer surface of the lead screw is equipped with a support sleeve, and one end of the support sleeve is welded with a connecting plate; the patent uses two adjustable splints to clamp and fix the intermediate housing, thereby ensuring safety and stability during airtightness detection of the intermediate housing and ensuring accurate sealing detection data.

[0004] However, the above patent has the following shortcomings: the screw and support sleeve are not limited in their movement after being mated, and the screw rotation easily drives the support sleeve, connecting plate, and clamping plate to rotate synchronously, affecting the clamping stability of the clamping plate on the turbocharger intermediate housing; and the inner diameters of the upper and lower through-holes of the turbocharger intermediate housing may vary slightly, making it difficult to ensure the quality of the seal of the external sealing ring of the first and second clamping blocks, thus affecting the accuracy of the test. To this end, we have proposed a turbocharger housing inspection device. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the present utility model is to provide a detection device for a turbocharger housing.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] The top of the L-shaped bracket is provided with a lower sealing mechanism, and the rear end of the L-shaped bracket is provided with an upper sealing mechanism. The back of the L-shaped bracket is provided with a lifting slot. The inner cavity of the lifting slot is rotatably connected to a one-way screw rod, and the inner cavity of the lifting slot is fixedly sleeved with a sliding rod, and the outer side of the one-way screw rod is threadedly sleeved with a lifting seat, and the lifting seat and the sliding rod are movably sleeved. The top surface of the first motor is fixedly installed with the top of the first motor, and the output shaft of the first motor is connected to the top of the one-way screw rod. The side of the lifting seat is fixedly connected with the lifting box, and the inner cavity of the lifting box is rotatably connected to a two-way screw rod, and the outer sides of the two ends of the two-way screw rod are respectively threadedly sleeved with a movable seat, and the ends of the two movable seats are fixedly connected with a clamping plate respectively, and the end of the lifting box is fixedly installed with a second motor, and the output shaft of the second motor is connected to the end of the two-way screw rod.

[0008] As a preferred solution of the present invention, the lower sealing mechanism includes a lower clamping seat fixedly sleeved on the top of the tooling box, a lower expansion ring fixedly sleeved on the outer side of the top of the lower clamping seat, the bottom end of the lower clamping seat extends to the inner cavity of the tooling box and is fixedly connected to the lower injection gas box, one end of the lower injection gas box is fixedly connected to the lower air guide tube, the end of the lower air guide tube is fixedly sleeved to the inner cavity of the lower expansion ring, the other end of the lower injection gas box is fixedly installed with a first electric push rod, the output end of the first electric push rod extends to the inner cavity of the lower injection gas box and is fixedly connected to the lower piston plate, the side of the lower piston plate is in contact with the inner wall of the lower injection gas box, and the other end of the lower injection gas box is provided with a first air vent.

[0009] As a preferred solution of the present invention, the upper sealing mechanism includes an air pump fixedly mounted on the top surface of the L-shaped bracket, the input end of the air pump is fixedly connected to an air suction hose, the bottom end of the air suction hose extends to the bottom of the L-shaped bracket and is fixedly sleeved with an upper clamping seat, the side of the bottom end of the upper clamping seat is fixedly sleeved with an upper expansion ring, the top surface of the upper clamping seat is fixedly connected to an upper gas injection box, one end of the upper gas injection box is fixedly connected to an upper air guide pipe, the end of the upper air guide pipe is fixedly sleeved to the inner cavity of the upper expansion ring, the other end of the upper gas injection box is fixedly mounted with a second electric push rod, the output end of the second electric push rod extends to the inner cavity of the upper gas injection box and is fixedly connected to an upper piston plate, the side surface of the upper piston plate is in contact with the inner wall of the upper gas injection box, and the other end of the upper gas injection box is provided with a second air vent.

[0010] As a preferred solution of the present invention, a connecting rope is fixedly connected to the bottom surface of the upper clamping seat, and a pressure sensor is fixedly connected to the bottom end of the connecting rope.

[0011] As a preferred solution of the present invention, a control panel is fixedly installed on the front of the tooling box.

[0012] As a preferred solution of the present invention, the inner wall of the lifting box is in contact with the top surface and the bottom surface of the movable seat.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the present invention, the lifting seat is limited by the sliding between the slide rod and the lifting seat, and the lifting seat is driven to move up and down by the threaded fit between the one-way screw rod and the lifting seat, thereby ensuring the stability of the lifting seat in moving up and down. The lifting seat is used to drive the lifting box and the clamping plate to move up and down, and the two clamping plates are driven to approach each other by the threaded fit between the two-way screw rod and the moving seat to clamp and fix the turbocharger housing, thereby avoiding the loosening of the turbocharger housing under inspection, which is convenient and practical.

[0015] (2) In the present invention, when the turbocharger intermediate housing is placed on the tooling box, the top end of the lower holder is extended into the bottom hole of the turbocharger intermediate housing, and the upper holder is extended into the top hole of the turbocharger intermediate housing. The first electric push rod drives the lower piston plate to move and introduces the air in the lower gas box cavity into the cavity of the lower expansion ring, so that the lower expansion ring expands and seals the lower holder and the turbocharger intermediate housing. The second electric push rod drives the upper piston plate to move and introduces the air in the upper gas box cavity into the cavity of the upper expansion ring, so that the upper expansion ring expands and seals the upper holder and the turbocharger intermediate housing, thereby ensuring the sealing of the upper and lower holes of the turbocharger intermediate housing and the accuracy of the sealing test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the front side of the utility model;

[0017] Figure 2 It is a structural diagram of the back of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the lower injection gas box of the utility model;

[0020] Figure 5 It is a cross-sectional schematic diagram of the upper gas injection box of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Tool box; 2. Lower sealing mechanism; 3. L-shaped bracket; 4. Upper sealing mechanism; 5. Lifting slot; 6. One-way screw; 7. Sliding rod; 8. First motor; 9. Lifting seat; 10. Lifting box; 11. Two-way screw; 12. Moving seat; 13. Clamp; 14. Second motor; 15. Lower clamping seat; 16. Lower expansion ring; 17. Lower air injection box; 18. Lower air duct; 19. First electric push rod; 20. Lower piston plate; 21. First air vent; 22. Air pump; 23. Air pump hose; 24. Upper clamping seat; 25. Upper expansion ring; 26. Upper air injection box; 27. Upper air duct; 28. Second electric push rod; 29. ​​Upper piston plate; 30. Second air vent; 31. Connecting rope; 32. Pressure sensor; 33. Control panel. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0026] Example:

[0027] See also Figure 1-5A detection device for a turbocharger housing includes a tool box 1, a lower sealing mechanism 2 is provided on the top surface of the tool box 1, an L-shaped bracket 3 is provided at the rear of the tool box 1, an upper sealing mechanism 4 is provided on the top of the L-shaped bracket 3, a lifting slot 5 is provided on the back of the L-shaped bracket 3, a one-way screw rod 6 is rotatably connected to the inner cavity of the lifting slot 5, a slide rod 7 is fixedly sleeved on the inner cavity of the lifting slot 5, a lifting seat 9 is threadedly sleeved on the outer side of the one-way screw rod 6, and the lifting seat 9 and the slide rod 7 are movably sleeved. The top of the L-shaped bracket 3 is provided with a lower sealing mechanism 2, an L-shaped bracket 3 is provided with a lower sealing mechanism 4, and a lifting slot 5 is provided on the back of the L-shaped bracket 3. A first motor 8 is fixedly installed on the surface, and the output shaft of the first motor 8 is connected to the top of the one-way screw rod 6. A lifting box 10 is fixedly connected to the side of the lifting seat 9. The inner cavity of the lifting box 10 is rotatably connected to the bidirectional screw rod 11. The outer sides of the two ends of the bidirectional screw rod 11 are respectively threadedly sleeved with moving seats 12, and the ends of the two moving seats 12 are respectively fixedly connected with splints 13. A second motor 14 is fixedly installed on the end of the lifting box 10, and the output shaft of the second motor 14 is connected to the end of the bidirectional screw rod 11.

[0028] In this embodiment, the lifting seat 9 is limited by the movable sleeve connection between the sliding rod 7 and the lifting seat 9, so that the lifting seat 9 can only move along the axial direction of the one-way screw rod 6.

[0029] For details, please refer to Figures 1 to 4 The lower sealing mechanism 2 includes a lower card seat 15 fixedly sleeved on the top of the tooling box 1, and a lower expansion ring 16 is fixedly sleeved on the outer side of the top of the lower card seat 15. The bottom end of the lower card seat 15 extends to the inner cavity of the tooling box 1 and is fixedly connected to the lower injection gas box 17. One end of the lower injection gas box 17 is fixedly connected to a lower air guide pipe 18, and the end of the lower air guide pipe 18 is fixedly sleeved to the inner cavity of the lower expansion ring 16. The other end of the lower injection gas box 17 is fixedly installed with a first electric push rod 19. The output end of the first electric push rod 19 extends to the inner cavity of the lower injection gas box 17 and is fixedly connected to a lower piston plate 20. The side surface of the lower piston plate 20 fits into the inner wall of the lower injection gas box 17. The other end of the lower injection gas box 17 is provided with a first air vent 21.

[0030] In this embodiment, the first vent hole 21 prevents the inner cavity of the lower injection gas box 17 from generating negative pressure suction, thereby ensuring that the lower piston plate 20 can move smoothly in the inner cavity of the lower injection gas box 17 .

[0031] For details, please refer to Figures 1 to 5The upper sealing mechanism 4 includes an air pump 22 fixedly mounted on the top surface of the L-shaped bracket 3, the input end of the air pump 22 is fixedly connected to the air suction hose 23, the bottom end of the air suction hose 23 extends to the bottom of the L-shaped bracket 3 and is fixedly sleeved with an upper clamping seat 24, the side of the bottom end of the upper clamping seat 24 is fixedly sleeved with an upper expansion ring 25, the top surface of the upper clamping seat 24 is fixedly connected to an upper gas injection box 26, one end of the upper gas injection box 26 is fixedly connected to an upper air guide pipe 27, the end of the upper air guide pipe 27 is fixedly sleeved to the inner cavity of the upper expansion ring 25, the other end of the upper gas injection box 26 is fixedly mounted with a second electric push rod 28, the output end of the second electric push rod 28 extends to the inner cavity of the upper gas injection box 26 and is fixedly connected to an upper piston plate 29, the side surface of the upper piston plate 29 is in contact with the inner wall of the upper gas injection box 26, and the other end of the upper gas injection box 26 is provided with a second air vent 30.

[0032] In this embodiment, the second vent hole 30 is used to prevent negative pressure suction from being generated in the inner cavity of the upper gas injection box 26 , thereby ensuring that the upper piston plate 29 can move smoothly in the inner cavity of the upper gas injection box 26 .

[0033] For details, please refer to Figure 2 The bottom surface of the upper clamping seat 24 is fixedly connected with a connecting rope 31 , and the bottom end of the connecting rope 31 is fixedly connected with a pressure sensor 32 .

[0034] In this embodiment, the pressure sensor 32 is used to detect the air pressure in the inner cavity of the turbocharger intermediate housing, thereby ensuring the sealing performance of the turbocharger intermediate housing.

[0035] For details, please refer to Figure 1 A control panel 33 is fixedly mounted on the front of the tooling box 1 .

[0036] In this embodiment, the control panel 33 is electrically connected to the first motor 8, the air pump 22, the pressure sensor 32, the second motor 14, the first electric push rod 19, and the second electric push rod 28, respectively. The control panel 33 is used to control the first motor 8, the air pump 22, the second motor 14, the first electric push rod 19, and the second electric push rod 28, and the data detected by the pressure sensor 32 is displayed at the same time.

[0037] For details, please refer to Figure 1 , the inner wall of the lifting box 10 is in contact with the top and bottom surfaces of the movable seat 12 .

[0038] In this embodiment, the inner wall of the lifting box 10 is used to limit the movable seat 12 so that the movable seat 12 can only move along the axis of the bidirectional screw rod 11 .

[0039] Working principle: When in use, first place the turbocharger intermediate housing on the tooling box 1, and at the same time make the top of the lower card seat 15 extend into the bottom hole of the turbocharger intermediate housing, then start the first motor 8 to drive the one-way screw 6 to rotate, and the threaded fit between the one-way screw 6 and the lifting seat 9 drives the lifting seat 9, the lifting box 10 and the clamping plate 13 to move up and down, so that the two clamping plates 13 are placed on the side of the turbocharger intermediate housing, start the second motor 14 to drive the bidirectional screw 11 to rotate, and the threaded fit between the bidirectional screw 11 and the moving seat 12 drives the two clamping plates 13 to approach each other, and use the clamping plate 13 to clamp and fix the turbocharger intermediate housing, and then pull the upper card seat 24 to the top of the turbocharger intermediate housing, and make the upper card seat 24 extend into the top hole of the turbocharger intermediate housing, and at the same time place the pressure sensor 32 in the middle of the turbocharger. In the shell, finally the first electric push rod 19 is started to drive the lower piston plate 20 to move, so that the air in the inner cavity of the lower gas box 17 is introduced from the lower air guide pipe 18 into the inner cavity of the lower expansion ring 16, so that the lower expansion ring 16 expands and the lower seat 15 and the turbocharger intermediate shell are sealed. In addition, the second electric push rod 28 is started to drive the upper piston plate 29 to move, so that the air in the inner cavity of the upper gas box 26 is introduced from the upper air guide pipe 27 into the inner cavity of the upper expansion ring 25, so that the upper expansion ring 25 expands and the upper seat 24 and the turbocharger intermediate shell are sealed. At this time, the air extraction pump 22 is started to make the air extraction hose 23 generate suction, and the suction force of the air extraction hose 23 is used to extract the gas in the inner cavity of the turbocharger intermediate shell. At the same time, the pressure sensor 32 is used to detect the air pressure in the inner cavity of the turbocharger intermediate shell, so as to detect the sealing of the turbocharger intermediate shell.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A turbocharger housing inspection device, comprising a tool box (1), characterized in that: The top surface of the tool box (1) is provided with a lower sealing mechanism (2), the rear portion of the tool box (1) is provided with an L-shaped bracket (3), the top of the L-shaped bracket (3) is provided with an upper sealing mechanism (4), the back of the L-shaped bracket (3) is provided with a lifting groove (5), the inner cavity of the lifting groove (5) is rotatably connected to a one-way screw rod (6), the inner cavity of the lifting groove (5) is fixedly sleeved with a slide rod (7), the outer side of the one-way screw rod (6) is threadedly sleeved with a lifting seat (9), the lifting seat (9) and the slide rod (7) are movably sleeved, and the top surface of the L-shaped bracket (3) is fixedly installed with a A motor (8), wherein the output shaft of the first motor (8) is connected to the top of the one-way screw (6), the side of the lifting seat (9) is fixedly connected to the lifting box (10), the inner cavity of the lifting box (10) is rotatably connected to the bidirectional screw (11), the outer sides of the two ends of the bidirectional screw (11) are respectively threadedly sleeved with movable seats (12), the ends of the two movable seats (12) are respectively fixedly connected to clamping plates (13), the end of the lifting box (10) is fixedly installed with a second motor (14), and the output shaft of the second motor (14) is connected to the end of the bidirectional screw (11); The lower sealing mechanism (2) includes a lower card seat (15) fixedly sleeved on the top of the tool box (1), a lower expansion ring (16) is fixedly sleeved on the outer side of the top of the lower card seat (15), the bottom end of the lower card seat (15) extends to the inner cavity of the tool box (1) and is fixedly connected to the lower injection box (17), one end of the lower injection box (17) is fixedly connected to the lower air guide tube (18), the end of the lower air guide tube (18) is fixedly sleeved to the inner cavity of the lower expansion ring (16), the other end of the lower injection box (17) is fixedly installed with a first electric push rod (19), the output end of the first electric push rod (19) extends to the inner cavity of the lower injection box (17) and is fixedly connected to the lower piston plate (20), the side surface of the lower piston plate (20) is in contact with the inner wall of the lower injection box (17), and the other end of the lower injection box (17) is provided with a first air vent (21); The upper sealing mechanism (4) includes an air pump (22) fixedly mounted on the top surface of the L-shaped bracket (3), the input end of the air pump (22) is fixedly connected to an air hose (23), the bottom end of the air hose (23) extends to the bottom of the L-shaped bracket (3) and is fixedly sleeved with an upper clamping seat (24), the side of the bottom end of the upper clamping seat (24) is fixedly sleeved with an upper expansion ring (25), the top surface of the upper clamping seat (24) is fixedly connected to an upper gas injection box (26), and one end of the upper gas injection box (26) is fixedly connected to the upper expansion ring (25). An upper air guide tube (27) is connected, and the end of the upper air guide tube (27) is fixedly sleeved into the inner cavity of the upper expansion ring (25). The other end of the upper air injection box (26) is fixedly installed with a second electric push rod (28). The output end of the second electric push rod (28) extends to the inner cavity of the upper air injection box (26) and is fixedly connected to an upper piston plate (29). The side surface of the upper piston plate (29) is in contact with the inner wall of the upper air injection box (26). The other end of the upper air injection box (26) is provided with a second air vent (30).

2. The turbocharger housing detection device according to claim 1, characterized in that: A connecting rope (31) is fixedly connected to the bottom surface of the upper clamping seat (24), and a pressure sensor (32) is fixedly connected to the bottom end of the connecting rope (31).

3. The turbocharger housing detection device according to claim 1, characterized in that: A control panel (33) is fixedly mounted on the front of the tool box (1).

4. The turbocharger housing detection device according to claim 1, characterized in that: The inner wall of the lifting box (10) is in contact with the top surface and bottom surface of the movable seat (12).

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