Flywheel housing gear chamber sealing performance detection device

Abstract

The utility model relates to the technical field of air tightness detection, and discloses a flywheel housing gear chamber air tightness detection device comprising a detection box, the top of the detection box is fixedly connected with a vacuum pump, the output end of the vacuum pump is fixedly connected with a connecting pipe, and the outside of the connecting pipe is fixedly connected with a vacuum valve. The outer portion of the connecting pipe is fixedly connected with a vacuum meter, the bottom end of the connecting pipe is fixedly connected with a connecting hose, the bottom end of the connecting hose is arranged outside a quick-change connector, the quick-change connector is fixedly connected to the top of a gear chamber sealing cover plate, and a gear chamber sealing gasket is arranged at the bottom of the gear chamber sealing cover plate. And the gear chamber sealing gasket is arranged at the top of the gear chamber. According to the utility model, through the arrangement of the vacuum pump, a measurement test of the vacuum sealing performance of the gear chamber can be carried out conveniently, and through the arrangement of the water tank, the sealing performance of the gear chamber can be judged more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to a flywheel housing gear chamber airtightness detection device. Background Art

[0002] The flywheel housing is an important connecting component between the engine block and the gearbox, and is also one of the core components of the engine. Whether there is leakage in the product directly determines whether the engine can operate normally.

[0003] The existing flywheel housing gear chamber air tightness detection device completely seals the cavity of the gear chamber and then performs a one-time air tightness detection on the entire cavity.

[0004] However, this detection method cannot clearly detect the leakage location of the gear chamber. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a flywheel housing gear chamber sealing detection device, aiming to improve the problem that the leakage position of the gear chamber cannot be clearly detected in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flywheel housing gear chamber sealing detection device, comprising a detection box, a vacuum pump is fixedly connected to the top of the detection box, a connecting pipe is fixedly connected to the output end of the vacuum pump, a vacuum valve is fixedly connected to the outside of the connecting pipe, a vacuum gauge is fixedly connected to the outside of the connecting pipe, a connecting hose is fixedly connected to the bottom end of the connecting pipe, the bottom end of the connecting hose is arranged on the outside of the quick-change connector, the quick-change connector is fixedly connected to the top of the gear chamber sealing cover plate, a gear chamber sealing gasket is arranged at the bottom of the gear chamber sealing cover plate, the gear chamber sealing gasket is arranged on the top of the gear chamber, the gear chamber is opened inside the flywheel housing, a flywheel chamber is opened inside the flywheel housing, and an installation component is opened inside the flywheel housing.

[0007] Furthermore, the mounting assembly comprises a crankshaft hole, the crankshaft hole is opened inside the flywheel housing, a crankshaft hole sealing gasket is arranged at the bottom of the crankshaft hole, and a crankshaft hole sealing cover plate is arranged at the bottom of the crankshaft hole sealing gasket.

[0008] Furthermore, an auxiliary power output hole is opened inside the flywheel housing, an auxiliary power output hole sealing gasket is arranged at the bottom of the auxiliary power output hole, and an auxiliary power output hole sealing cover plate is arranged at the bottom of the auxiliary power output hole sealing gasket.

[0009] Furthermore, a sliding block is fixedly connected to the rear side of the detection box, the internal thread of the sliding block is connected to a threaded rod, and the threaded rod is rotatably connected to the inside of the vertical plate.

[0010] Furthermore, a motor is fixedly connected to the top of the vertical plate, a threaded rod is fixedly connected to the output end of the motor, a sliding groove is provided inside the vertical plate, and a threaded rod is rotatably connected inside the sliding groove.

[0011] Furthermore, the bottom of the vertical plate is fixedly connected to a base, and the top of the base is fixedly connected to a water tank.

[0012] Furthermore, a cylinder is fixedly connected to the inner top of the detection box, a pressure plate is fixedly connected to the output end of the cylinder, and a gear chamber sealing cover plate is provided at the bottom of the pressure plate.

[0013] Furthermore, pull rings are fixedly connected to both sides of the top of the gear chamber sealing cover plate.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the vacuum pump, the detection box, the vacuum valve, the connecting pipe, the vacuum gauge, the connecting hose, the flywheel housing, the gear chamber sealing cover plate, the quick-change joint and other structures are coordinated to conveniently perform the vacuum sealing measurement test on the gear chamber.

[0016] 2. In the utility model, through the coordination among the flywheel housing, the motor, the threaded rod, the slider, the crankshaft hole sealing gasket, the crankshaft hole sealing cover plate, the gear room sealing gasket, the gear room sealing cover plate and the like, the lifting device drives the detection box to be immersed in water. If there is a problem with the sealing of the gear room, there will be continuous bubbles breaking on the water surface, so that the sealing of the gear room can be judged more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of a flywheel housing gear chamber sealing detection device proposed by the utility model;

[0018] Figure 2 This is a right view of a flywheel housing gear chamber sealing detection device proposed by the utility model;

[0019] Figure 3 for Figure 1 Enlarged image of point A:

[0020] Figure 4 This is a partial structural development diagram of a flywheel housing gear chamber sealing detection device proposed by the utility model;

[0021] Figure 5 The utility model is a partial structural schematic diagram of a flywheel housing gear chamber sealing detection device.

[0022] Legend:

[0023] 1. Base; 2. Vertical plate; 3. Motor; 4. Slide; 5. Threaded rod; 6. Sliding block; 7. Inspection box; 8. Vacuum pump; 9. Water tank; 10. Vacuum valve; 11. Connecting pipe; 12. Vacuum gauge; 13. Connecting hose; 14. Flywheel housing; 15. Gear chamber sealing cover; 16. Gear chamber; 17. Flywheel chamber; 18. Crankshaft hole; 19. Crankshaft hole sealing gasket; 20. Crankshaft hole sealing cover; 21. Gear chamber sealing gasket; 22. Auxiliary power output hole; 23. Auxiliary power output hole sealing gasket; 24. Auxiliary power output hole sealing cover; 25. Quick-change connector; 26. Pull ring; 27. Cylinder; 28. Pressure plate. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figure 3 , Figure 4 and Figure 5 The utility model provides an embodiment: a flywheel housing gear chamber sealing detection device, comprising a detection box 7, a vacuum pump 8 is fixedly connected to the top of the detection box 7, a connecting pipe 11 is fixedly connected to the output end of the vacuum pump 8, a vacuum valve 10 is fixedly connected to the outside of the connecting pipe 11, a vacuum gauge 12 is fixedly connected to the outside of the connecting pipe 11, a connecting hose 13 is fixedly connected to the bottom end of the connecting pipe 11, and the bottom end of the connecting hose 13 is arranged on the outside of the quick-change joint 25, and the quick-change joint 25 is fixedly connected to the gear chamber sealing cover plate 1 5, a gear chamber sealing gasket 21 is arranged at the bottom of the gear chamber sealing cover plate 15, the gear chamber sealing gasket 21 is arranged at the top of the gear chamber 16, the gear chamber 16 is opened in the flywheel housing 14, a flywheel chamber 17 is opened in the flywheel housing 14, a mounting assembly is opened in the flywheel housing 14, the mounting assembly includes a crankshaft hole 18, the crankshaft hole 18 is opened in the flywheel housing 14, a crankshaft hole sealing gasket 19 is arranged at the bottom of the crankshaft hole 18, and a crankshaft hole sealing cover plate 20 is arranged at the bottom of the crankshaft hole sealing gasket 19.

[0026] Connect the connecting hose 13 to the quick-change connector 25 to drive the vacuum pump 8. The vacuum pump 8 evacuates the interior of the gear chamber 16 through the connecting pipe 11 and the vent connecting hose 13. The vacuum valve 10 is used to control the closing of the connecting pipe 11. The vacuum gauge 12 is used to observe whether the air pressure inside the gear chamber 16 changes. The crankshaft hole 18 and the gear chamber 16 are fixed with corresponding sealing covers and sealing gaskets respectively using screws.

[0027] Reference Figure 1 , Figure 2 and Figure 5 An auxiliary power output hole 22 is provided inside the flywheel housing 14, an auxiliary power output hole sealing gasket 23 is provided at the bottom of the auxiliary power output hole 22, an auxiliary power output hole sealing cover plate 24 is provided at the bottom of the auxiliary power output hole sealing gasket 23, a sliding block 6 is fixedly connected to the rear side of the detection box 7, a threaded rod 5 is connected to the inner thread of the sliding block 6, the threaded rod 5 is rotatably connected to the inside of the vertical plate 2, a motor 3 is fixedly connected to the top of the vertical plate 2, the output end of the motor 3 is fixedly connected to the threaded rod 5, a slide groove 4 is provided inside the vertical plate 2, and the threaded rod 5 is rotatably connected to the inside of the slide groove 4.

[0028] The auxiliary power output hole 22 is sealed by a corresponding sealing cover plate and a sealing gasket, and then fixed by screws. The motor 3 drives the threaded rod 5 to rotate, and the threaded rod 5 drives the sliding block 6 to move inside the sliding groove 4. The movement of the sliding block 6 drives the detection box 7 to move.

[0029] Reference Figure 3 and Figure 4 The bottom of the vertical plate 2 is fixedly connected to the base 1, the top of the base 1 is fixedly connected to the water tank 9, the inner top of the detection box 7 is fixedly connected to the cylinder 27, the output end of the cylinder 27 is fixedly connected to the pressure plate 28, the bottom of the pressure plate 28 is provided with a gear chamber sealing cover plate 15, and the top two sides of the gear chamber sealing cover plate 15 are fixedly connected to pull rings 26.

[0030] The pressure plate 28 is driven by the cylinder 27 to press the gear chamber sealing cover plate 15 tightly, the pull ring 26 is used to pull the gear chamber sealing cover plate 15, and the water tank 9 is used to detect whether the gear chamber 16 has leakage.

[0031] Working principle: When using the device, first fix the gear chamber 16, crankshaft hole 18, and auxiliary power output hole 22 of the flywheel housing 14 with corresponding sealing cover plates and sealing gaskets through screws, place the flywheel housing 14 inside the detection box 7, drive the pressure plate 28 through the cylinder 27 to press the flywheel housing 14 as a whole, and then connect the connecting hose 13 to the quick-change connector 25, and start the vacuum pump 8. The vacuum pump 8 evacuates the interior of the gear chamber 16 through the connecting pipe 11 and the vent connecting hose 13. After the vacuum treatment, start the motor 3, the motor 3 drives the threaded rod 5 to rotate, and the rotation of the threaded rod 5 drives the sliding block 6 to move, and the sliding block 6 drives the detection box 7 to move downward until the gear chamber 16 is completely immersed in the water tank 9 above the base 1. The position of the leakage point of the gear chamber 16 is judged by observing the position of the bubble, and whether the vacuum gauge 12 changes and whether bubbles are generated in the sealing part of the gear chamber 16 is observed. It can be determined whether there will be leakage, and the leakage position can also be accurately checked.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flywheel housing gear chamber sealing detection device, comprising a detection box (7), characterized in that: The top of the detection box (7) is fixedly connected to a vacuum pump (8), the output end of the vacuum pump (8) is fixedly connected to a connecting pipe (11), the outside of the connecting pipe (11) is fixedly connected to a vacuum valve (10), the outside of the connecting pipe (11) is fixedly connected to a vacuum gauge (12), the bottom end of the connecting pipe (11) is fixedly connected to a connecting hose (13), the bottom end of the connecting hose (13) is arranged outside a quick-change joint (25), the quick-change joint (25) is fixedly connected to the top of a gear chamber sealing cover plate (15), the bottom of the gear chamber sealing cover plate (15) is arranged with a gear chamber sealing gasket (21), the gear chamber sealing gasket (21) is arranged at the top of a gear chamber (16), the gear chamber (16) is opened inside a flywheel housing (14), a flywheel chamber (17) is opened inside the flywheel housing (14), and a mounting assembly is opened inside the flywheel housing (14).

2. A flywheel housing gear chamber sealing detection device according to claim 1, characterized in that: The mounting assembly comprises a crankshaft hole (18), wherein the crankshaft hole (18) is opened inside the flywheel housing (14), a crankshaft hole sealing gasket (19) is arranged at the bottom of the crankshaft hole (18), and a crankshaft hole sealing cover plate (20) is arranged at the bottom of the crankshaft hole sealing gasket (19).

3. A flywheel housing gear chamber sealing detection device according to claim 1, characterized in that: An auxiliary power output hole (22) is provided inside the flywheel housing (14), an auxiliary power output hole sealing gasket (23) is provided at the bottom of the auxiliary power output hole (22), and an auxiliary power output hole sealing cover plate (24) is provided at the bottom of the auxiliary power output hole sealing gasket (23).

4. A flywheel housing gear chamber sealing detection device according to claim 1, characterized in that: A sliding block (6) is fixedly connected to the rear side of the detection box (7), and a threaded rod (5) is internally threadedly connected to the sliding block (6), and the threaded rod (5) is rotatably connected to the inside of the vertical plate (2).

5. A flywheel housing gear chamber sealing detection device according to claim 4, characterized in that: The top of the vertical plate (2) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to a threaded rod (5), a slide groove (4) is provided inside the vertical plate (2), and the inside of the slide groove (4) is rotatably connected to a threaded rod (5).

6. A flywheel housing gear chamber sealing detection device according to claim 4, characterized in that: The bottom of the vertical plate (2) is fixedly connected to a base (1), and the top of the base (1) is fixedly connected to a water tank (9).

7. A flywheel housing gear chamber sealing detection device according to claim 1, characterized in that: The inner top of the detection box (7) is fixedly connected to a cylinder (27), the output end of the cylinder (27) is fixedly connected to a pressure plate (28), and the bottom of the pressure plate (28) is provided with a gear chamber sealing cover plate (15).

8. A flywheel housing gear chamber sealing detection device according to claim 1, characterized in that: Pull rings (26) are fixedly connected to both sides of the top of the gear chamber sealing cover plate (15).

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