Turbocharger volute air tightness detection equipment

Abstract

The utility model discloses turbocharger volute air tightness detection equipment which comprises a detection table and a top plate, the detection table is connected with the top plate through stand columns, the upper end face of the detection table is provided with multiple sets of limiting columns, the top end of the top plate is provided with a first air cylinder, one end of the first air cylinder is provided with a first plugging piece, and the other end of the first air cylinder is provided with a second plugging piece. A side plate is arranged on one side of the top plate, a second air cylinder is arranged on the side plate, a second plugging piece is arranged at one end of the second air cylinder, and an air hole is formed in the bottom of the detection table; according to the utility model, the plurality of groups of limiting columns are installed and fixed according to the outer contour of the volute main body, so that the limiting grooves for placing the volute main body are formed among the plurality of groups of limiting columns, thereby ensuring the consistency of the position of the volute main body when the volute main bodies of the same batch are detected; the air cylinder drives all the plugging pieces to move, rapid plugging of the volute main body is achieved, manual plugging is replaced, the air tightness detection efficiency is further improved, and the air tightness detection device is suitable for air tightness detection of large-batch volutes.

Description

Technical Field

[0001] The utility model relates to the technical field of volute detection, in particular to a turbocharger volute air tightness detection device. Background Art

[0002] Turbochargers are usually used in the automotive field. They are actually an air compressor that increases the intake volume by compressing air. The housing of the turbocharger, referred to as the volute, is an important part of the turbocharger. On the one hand, it is connected to the intake manifold to introduce the hot exhaust gas discharged by the engine, and on the other hand, it is sealed with the three-way catalytic converter and the compressor.

[0003] In the machining process, air tightness testing is required before and after the assembly of the vortex casing and accessories. When performing the air tightness testing, the holes in the vortex casing need to be sealed. The existing sealing method is manual, and the testing efficiency is low, which is not suitable for air tightness testing of large quantities of vortex casings. Utility Model Content

[0004] The utility model aims to provide a turbocharger volute air tightness detection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a turbocharger volute air tightness detection device, comprising a detection platform and a top plate, the detection platform and the top plate are connected by a column, a plurality of groups of limit columns are arranged on the upper end surface of the detection platform, a first cylinder is arranged on the top of the top plate, a first blocking piece is arranged at one end of the first cylinder, a side plate is arranged on one side of the top plate, a second cylinder is arranged on the side plate, a second blocking piece is arranged at one end of the second cylinder, and an air hole is opened at the bottom of the detection platform.

[0006] Wherein, a limiting groove is formed between the plurality of groups of limiting columns, and the volute body is placed in the limiting groove.

[0007] Wherein, the air hole is connected with a connecting hose, and the connecting hose is connected to the air pump assembly.

[0008] Wherein, sealing rings are fixedly arranged on the first sealing member and the second sealing member.

[0009] Wherein, one end of the first cylinder is connected to a first mounting seat.

[0010] Wherein, one end of the second cylinder is connected to a second mounting seat.

[0011] Wherein, the first blocking member is fixed to the first mounting seat by screws.

[0012] Wherein, the second blocking member is fixed to the second mounting seat by screws.

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

[0014] 1. The utility model installs and fixes multiple groups of limit columns according to the outer contour of the volute body, so that limit grooves for placing the volute body are formed between the multiple groups of limit columns, thereby ensuring the consistency of the position of the volute body when detecting the volute bodies of the same batch.

[0015] 2. The utility model drives the sealing parts to move through the cylinder to achieve rapid sealing of the volute body, replacing manual sealing, saving time and effort, thereby improving the efficiency of air tightness detection, being suitable for air tightness detection of large quantities of volutes and shortening the detection cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the bottom view structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the sealing ring of the utility model;

[0019] Figure 4 It is a working schematic diagram of the utility model.

[0020] In the figure: 1. test bench; 2. column; 3. top plate; 4. limit column; 5. volute body; 6. first cylinder; 7. first blocking member; 8. side plate; 9. second cylinder; 10. second blocking member; 11. air hole; 12. connecting hose; 13. sealing ring; 14. first mounting seat; 15. second mounting seat. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4The utility model provides a technical solution: a turbocharger volute air tightness detection device, comprising a detection platform 1 and a top plate 3, the detection platform 1 and the top plate 3 are connected by a column 2, a plurality of limit columns 4 are arranged on the upper end surface of the detection platform 1, a first cylinder 6 is arranged on the top of the top plate 3, a first blocking member 7 is arranged at one end of the first cylinder 6, the first blocking member 7 is adapted to the upper hole of the volute body 5, a side plate 8 is arranged on one side of the top plate 3, a second cylinder 9 is arranged on the side plate 8, a second blocking member 10 is arranged at one end of the second cylinder 9, the second blocking member 10 is adapted to the side hole of the volute body 5, an air hole 11 is opened at the bottom of the detection platform 1, and an air pump assembly is connected through the air hole 11.

[0023] When the first cylinder 6 is working, it drives the first blocking member 7 at one end thereof to move, and the first blocking member 7 moves downward to block the upper hole of the volute body 5 .

[0024] When the second cylinder 9 is working, it drives the second blocking member 10 at one end thereof to move, and the second blocking member 10 moves to block the side hole of the volute body 5 .

[0025] Among them, a limiting groove is formed between the multiple groups of limiting columns 4, and the volute body 5 is placed in the limiting groove. The lower hole of the volute body 5 is tightly attached to the detection platform 1 to achieve sealing.

[0026] Among them, multiple groups of limiting columns 4 are installed and fixed according to the outer contour of the volute casing main body 5, so that limiting grooves for placing the volute casing main body 5 are formed between the multiple groups of limiting columns 4. When fixing the volute casing main body 5, it is only necessary to place the volute casing main body 5 in the limiting groove to achieve positioning, thereby ensuring the consistency of the position of the volute casing main body 5 when detecting the volute casing main bodies 5 of the same batch.

[0027] Among them, according to the position of the hole in the volute body 5, the position and number of the sealing parts are selectively set, and the position of the volute body 5 is consistent each time. During the airtightness test, the sealing parts are driven to move by the cylinder to achieve rapid sealing of the volute body 5, replacing manual sealing, saving time and effort, and thus improving the efficiency of airtightness testing. It is suitable for airtightness testing of large quantities of volutes and shortens the testing cycle.

[0028] The air hole 11 is connected to a connecting hose 12, and the connecting hose 12 is connected to an air pump assembly. The air pump assembly includes a pressure gauge, a valve, a sensor, a pressure regulating valve, an air source, and the like.

[0029] Among them, when conducting air tightness detection, the valve is automatically closed after the volute body 5 is pressurized, the air path is cut off, and the pressure stabilization stage is entered. The pressure is maintained for a certain period of time so that the pressure tends to be stable. The sensor records the real-time pressure value at that time and enters the test stage. After a period of testing, the real-time pressure value is read again and compared with the previous pressure value. If the volute body 5 has a leak, the difference between the two pressures is the leakage value of the volute body 5 during the detection time. The larger the difference, the more serious the leakage of the volute body 5 and the worse the air tightness. If the difference is within the allowable leakage range, the volute body 5 is qualified.

[0030] Among them, the first sealing member 7 and the second sealing member 10 are both fixedly provided with a sealing ring 13. When the upper hole of the volute casing body 5 is sealed by the first sealing member 7, the sealing ring 13 of the first sealing member 7 is located at the connection to achieve sealing. When the side hole of the volute casing body 5 is sealed by the second sealing member 10, the sealing ring 13 of the second sealing member 10 is located at the connection to achieve sealing, thereby improving the sealing performance and thus improving the accuracy of the detection result.

[0031] One end of the first cylinder 6 is connected to a first mounting seat 14 .

[0032] One end of the second cylinder 9 is connected to a second mounting seat 15 .

[0033] The first blocking member 7 and the first mounting seat 14 are fixed by screws, so the connection method is simple and the assembly and disassembly are convenient.

[0034] The second blocking member 10 and the second mounting seat 15 are fixed by screws, so the connection method is simple and the assembly and disassembly are convenient.

[0035] Among them, the first blocking member 7 and the first mounting seat 14 are detachably fixed, the second blocking member 10 and the second mounting seat 15 are detachably fixed, and the limiting column 4 and the detection platform 1 are detachably fixed. The first blocking member 7 and the second blocking member 10 can be replaced according to usage requirements, and the installation positions of multiple groups of limiting columns 4 can be adjusted.

[0036] Working principle: When in use, multiple groups of limiting columns 4 are installed and fixed according to the outer contour of the volute body 5, so that limiting grooves for placing the volute body 5 are formed between the multiple groups of limiting columns 4. When fixing the volute body 5, it is only necessary to place the volute body 5 in the limiting groove to achieve positioning, thereby ensuring the consistency of the position of the volute body 5 when detecting the volute bodies 5 of the same batch. During the air tightness detection, the first cylinder 6 works to drive the first blocking piece 7 at one end thereof to move, and the first blocking piece 7 moves downward to block the upper hole of the volute body 5. The second cylinder 9 works to drive the second blocking piece 10 at one end thereof to move, and the second blocking piece 10 moves to block the side holes of the volute body 5. The connecting hose 12 is connected to the air pump assembly, and the air pump assembly includes a pressure gauge, a valve, and a transmission. Sensor, pressure regulating valve, air source, etc., the air pump assembly automatically closes the valve after pressurizing the volute body 5, cuts off the air path, enters the pressure stabilization stage, maintains a certain period of time, and makes the pressure tend to be stable. The sensor records the real-time pressure value at that time and enters the test stage. After a period of testing, the real-time pressure value is read again and compared with the previous pressure value. If the volute body 5 leaks, the difference between the two pressures is the leakage value of the volute body 5 during the detection time. The larger the difference, the more serious the leakage of the volute body 5 and the worse the air tightness. If the difference is within the allowable leakage range, the volute body 5 is qualified. After the detection is completed, the first cylinder 6 drives the first sealing member 7 to reset, and the second cylinder 9 drives the second sealing member 10 to reset, and the volute body 5 can be manually removed.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A turbocharger volute air tightness testing device, comprising a testing platform (1) and a top plate (3), characterized in that: The detection platform (1) is connected to the top plate (3) via a column (2); a plurality of groups of limit columns (4) are arranged on the upper end surface of the detection platform (1); a first cylinder (6) is arranged at the top end of the top plate (3); a first blocking member (7) is arranged at one end of the first cylinder (6); a side plate (8) is arranged on one side of the top plate (3); a second cylinder (9) is arranged on the side plate (8); a second blocking member (10) is arranged at one end of the second cylinder (9); and an air hole (11) is provided at the bottom of the detection platform (1).

2. The turbocharger volute air tightness detection device according to claim 1, characterized in that: A limiting groove is formed between the plurality of groups of limiting columns (4), and the volute body (5) is placed in the limiting groove.

3. The turbocharger volute air tightness detection device according to claim 1, characterized in that: The air hole (11) is connected to a connecting hose (12), and the connecting hose (12) is connected to an air pump assembly.

4. The turbocharger volute air tightness detection device according to claim 1, characterized in that: A sealing ring (13) is fixedly arranged on both the first sealing member (7) and the second sealing member (10).

5. The turbocharger volute air tightness detection device according to claim 1, characterized in that: One end of the first cylinder (6) is connected to a first mounting seat (14).

6. The turbocharger volute air tightness detection device according to claim 5, characterized in that: One end of the second cylinder (9) is connected to a second mounting seat (15).

7. The turbocharger volute air tightness detection device according to claim 6, characterized in that: The first blocking member (7) and the first mounting seat (14) are fixed by means of screws.

8. The turbocharger volute air tightness detection device according to claim 7, characterized in that: The second blocking member (10) and the second mounting seat (15) are fixed by means of screws.

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