A flywheel housing air tightness detection device

Abstract

The present application discloses a flywheel housing air tightness detection device, which belongs to the technical field of detection equipment. It includes a side plate, the top of which is connected to a top plate, and a water tank is arranged at the bottom of the side plate; a carrier is arranged at the bottom of the top plate, and the carrier includes a connecting plate and a positioning rod arranged on one side of the connecting plate, and the end face of the flywheel housing to be detected can be positioned at the positioning rod; a sealing plate is arranged on the side of the side plate facing the carrier, and the sealing plate is driven to move toward the carrier side, so that the sealing plate seals the connection surface side of the flywheel housing on the carrier; a driving component A is connected to the carrier, so that the flywheel housing sealed by the carrier and the sealing plate can move toward the water tank. The carrier and the sealing plate of the present application seal the end face and the connection surface of the flywheel housing respectively, so that a closed space is formed inside the flywheel housing, and the end face and the peripheral side of the flywheel housing can be tested for air tightness at the same time, which solves the problem that a more comprehensive air tightness test cannot be performed on the flywheel housing.

Description

Technical Field

[0001] The present application relates to the technical field of detection equipment, and more specifically, to a flywheel housing air tightness detection device. Background Art

[0002] The flywheel housing is an important component of the engine, usually used to store the flywheel. Its function is to protect the flywheel from external damage and also help to balance the engine. The design of the flywheel housing needs to ensure its structural strength and rigidity, as well as good air tightness to prevent oil and gas leakage. The air tightness test of the flywheel housing is an important quality control step to ensure that the flywheel housing can effectively prevent gas leakage in actual use. The air tightness test usually involves placing the flywheel housing in a specific testing device, and judging its air tightness by applying pressure to the inside of the flywheel housing and monitoring whether there is gas escaping.

[0003] In the related art, in order to facilitate the sealing and fixing of the flywheel housing during detection, for example, the patent with the prior art publication number CN109900434B provides a flywheel housing air tightness detection device. When the device performs air tightness detection on the flywheel housing, it is only necessary to place the flywheel housing on the base and clamp it through the first clamping device and the second clamping device, and then the air is pumped into the cavity between the flywheel housing and the base by the air pump and the entire flywheel housing is moved downward into the water in the water tank through the lifting device. It is possible to quickly judge whether the air tightness meets the requirements by whether bubbles appear in the water. In the whole operation process, the first clamping device and the second clamping device automatically control the clamping and loosening of the flywheel housing. People only need to put the flywheel housing on and take it down to realize automatic detection. There is no need to manually operate the clamping separately, which effectively improves the detection efficiency of the flywheel housing, reduces the labor intensity and the ability requirements for the operator, and the whole process is simple to operate and the sealing detection stability is high.

[0004] Although the above-mentioned prior art solution can achieve the effect of convenient sealing, fixing and disassembly of the flywheel shell by pressing and releasing the flywheel shell through the automatically controlled pressing device, when performing the sealing test, it can only be tested through the cavity between the flywheel shell and the base, that is, only the end face of the flywheel shell can be sealed, and the sealing test of the peripheral side of the flywheel shell is ignored, resulting in an incomplete airtightness test of the flywheel shell.

[0005] In view of this, we propose a flywheel housing air tightness detection device. Summary of the invention

[0006] The purpose of the present application is to provide a flywheel housing air tightness detection device, which solves the technical problem that a more comprehensive air tightness detection of the flywheel housing cannot be performed, and achieves a technical effect of a more comprehensive detection of the flywheel housing.

[0007] The present application provides a flywheel housing air tightness detection device, comprising:

[0008] The side plate has a top end connected to the top plate, and a water tank is arranged at the bottom of the side plate;

[0009] A carrier is arranged at the bottom end of the top plate, the carrier comprises a connection plate and a positioning rod arranged on one side of the connection plate, and the end face of the flywheel housing to be detected can be positioned at the positioning rod; and a plurality of sealing gaskets A are arranged on one side of the carrier corresponding to the end face hole position of the flywheel housing, and the sealing gaskets A can contact the end face hole position of the flywheel housing;

[0010] A sealing disk, arranged on a side of the side plate facing the carrier, wherein the sealing disk is driven to move toward the carrier side so that the sealing disk seals the connection surface side of the flywheel housing on the carrier;

[0011] The driving assembly A is arranged on one side of the top plate, and the driving assembly A is connected to the carrier so that the flywheel housing sealed by the carrier and the sealing disk can move toward the water tank for air tightness detection.

[0012] Preferably, an air inlet hole is opened on the inner side of the sealing disk, and an air pipe connected to the inflation device is arranged at the air inlet hole;

[0013] A sealing gasket B is provided on one side of the sealing disc close to the carrier, and the sealing gasket B is adapted to one side of the flywheel housing;

[0014] A pressure-sensitive element is arranged between the sealing gasket B and the sealing disk.

[0015] Preferably, pin holes are provided on the inner side of the sealing disk corresponding to the positioning rod; when the sealing disk is driven to move toward the carrier side, the positioning rod penetrates into the corresponding pin hole.

[0016] Preferably, the air pipe is connected to one side of the sealing disk, and the air pipe is arranged in a sealing box;

[0017] The sealing box is slidably arranged on one side of the side plate through a slide plate, so that when the carrier is driven by the driving component A to move toward the water tank, it can drive the sealing disk to move synchronously.

[0018] Preferably, the carrier further comprises:

[0019] A connecting plate is arranged on one side of the driving assembly A, and a connecting disc is connected to one end of the connecting plate;

[0020] A carrying plate, arranged on the inner side of the connecting plate;

[0021] The pin body is arranged on one side of the bearing plate, and the sealing gasket A is sleeved on the outer side corresponding to the pin body.

[0022] Preferably, a connecting hole is opened on the inner side of the bearing plate, and an adjusting bolt is arranged in the connecting hole;

[0023] The pin body is arranged on one side of the adjusting bolt;

[0024] A pressure-sensitive element is provided on one side of each sealing gasket A away from the flywheel housing.

[0025] Preferably, a driving gear is rotatably arranged inside the sealing box, and a transmission tooth is provided on the outer side of the air pipe, so that the air pipe can be driven by the driving gear to move along the sealing box;

[0026] A motor B is disposed on one side of the side plate, an output end of the motor B is connected to a shaft sleeve, a flower shaft is slidably arranged in the shaft sleeve, and the flower shaft passes through the sealing box and is connected to one side of the driving gear.

[0027] Preferably, the driving assembly A comprises:

[0028] A limiting sleeve, arranged on the inner side of the top plate;

[0029] A screw rod is rotatably disposed in the limiting sleeve, and the screw rod is driven by a motor A, and the motor A is disposed at the top end of the limiting sleeve;

[0030] A slip ring is threadedly arranged on the outer side of the screw rod, and the slip ring is connected to the carrier through a connecting block.

[0031] Preferably, a rotation slot is provided on the outer side of the limiting sleeve, and the rotation slot is arranged along the circumference of the limiting sleeve;

[0032] A sliding groove is also provided on the outer side of the limiting sleeve, the sliding groove is arranged along the axial direction of the limiting sleeve, and the rotating groove is connected to the sliding groove;

[0033] The connecting block can move in the rotating slide groove and the sliding slide groove.

[0034] Preferably, a limit pin is provided on one side of the side plate corresponding to the pin hole, and when the connecting block drives the carrier to rotate to one side of the sealing disk, the limit pin is arranged opposite to the positioning rod.

[0035] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0036] (1) The present application adopts a carrier and a sealing disk to seal the end face and the connection face of the flywheel housing respectively, so that a closed space is formed inside the flywheel housing. When a certain pressure of gas is input into the flywheel housing through the air inlet hole, the end face and the peripheral side face of the flywheel housing can be tested for air tightness at the same time, thereby solving the problem of being unable to perform a more comprehensive air tightness test on the flywheel housing, and thus achieving a more comprehensive air tightness test effect on the flywheel housing.

[0037] (2) The present application sets a driving assembly A at the bottom of the top plate to drive the carrier to rotate, so that the carrier can easily transfer the flywheel housing to the outside of the sealing disk, and after the sealing disk seals the flywheel housing, the carrier can continue to drive the sealing disk and the flywheel housing to move into the water tank for inspection, making the inspection work more convenient.

[0038] (3) The present application arranges a sealing disk on the outer side of the side plate, and arranges the sealing disk on the side of the carrier away from the flywheel housing, so that the flywheel housing is located at the operating position of the staff during installation. When the flywheel housing is installed and transferred to the outer side of the sealing disk, the bolt cap in the carrier is rotated to the operating position. When the sealing disk presses and seals the flywheel housing, the pressure on each sealing gasket A is adjusted according to the structure detected by the pressure-sensitive element to ensure the sealing of each sealing gasket A to the end surface of the flywheel housing.

[0039] (4) The present application achieves an automatic sealing effect by arranging a driving component B on the outer side of the side plate to drive the sealing disk to approach the flywheel housing and perform a sealing action on its own, while not affecting the downward movement of the sealing disk. A limit pin is arranged on the outer side of the side plate to position the sealing disk to ensure the horizontality of the carrier and the sealing disk to prevent the sealing disk from falling on its own. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the overall structure of a flywheel housing air tightness detection device disclosed in a preferred embodiment of the present application;

[0041] Figure 2 A schematic diagram of the back structure of a flywheel housing air tightness detection device disclosed in a preferred embodiment of the present application;

[0042] Figure 3 It is a schematic structural diagram of a flywheel housing air tightness detection device disclosed in a preferred embodiment of the present application after the carrier rotates;

[0043] Figure 4 This is a schematic structural diagram of a side plate in a flywheel housing air tightness detection device disclosed in a preferred embodiment of the present application;

[0044] Figure 5 A schematic diagram of the explosion structure of a carrier in a flywheel housing air tightness detection device disclosed in a preferred embodiment of the present application;

[0045] Figure 6 A schematic diagram of the back structure of a carrier in a flywheel housing air tightness detection device disclosed in a preferred embodiment of the present application;

[0046] Figure 7 This is a schematic structural diagram of a sealing disk in a flywheel housing air tightness detection device disclosed in a preferred embodiment of the present application;

[0047] Figure 8 This is a schematic diagram of the structure of a drive assembly A in a flywheel housing air tightness detection device disclosed in a preferred embodiment of the present application;

[0048] Fig. 9 This is a schematic diagram of the assembly structure of the carrier and the driving component A in the flywheel housing air tightness detection device disclosed in a preferred embodiment of the present application;

[0049] Fig.10 This is a schematic diagram of the structure of a drive assembly B in a flywheel housing air tightness detection device disclosed in a preferred embodiment of the present application;

[0050] Description of the numbers in the figure:

[0051] 100. Flywheel housing;

[0052] 1. Side panel; 11. Top panel; 12. Water tank; 13. Vertical slide; 14. Limit pin; 15. Display controller; 16. Emergency stop switch;

[0053] 2. Carrier; 21. Connecting plate; 22. Connecting plate; 23. Positioning rod; 24. Carrying plate; 25. Connecting hole; 26. Adjusting bolt; 27. Pin body; 28. Sealing gasket A; 29. ​​Bolt cap;

[0054] 3. Sealing disk; 31. Air inlet hole; 32. Pin hole; 33. Sealing gasket B;

[0055] 4. Driving assembly A; 41. Motor A; 42. Limit sleeve; 421. Rotating slide; 422. Sliding slide; 43. Screw; 44. Slip ring; 45. Connecting block; 451. Lateral sensing probe; 452. Bottom sensing probe;

[0056] 5. Driving assembly B; 51. Motor B; 52. Driving gear; 53. Sealing box; 54. Air pipe; 541. Hose; 542. Inflating equipment; 55. Slide plate; 56. Slider; 57. Bushing; 58. Flower shaft. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0058] Reference below Figure 1-Figure 10 The flywheel housing air tightness detection device and its working principle recorded in the embodiment of the present application are described.

[0059] Reference Figure 1-Figure 8 The embodiment of the present application discloses a flywheel housing air tightness detection device, including a side plate 1, a top plate 11 is fixedly arranged on the top of the side plate 1, a water tank 12 is fixedly arranged on the bottom of the side plate 1, a carrier 2 for placing a flywheel housing 100 is arranged at the bottom of the top plate 11, a sealing disk 3 for sealing the flywheel housing 100 is arranged on the side of the side plate 1 close to the carrier 2, and an air inlet 31 is opened on the inner side of the sealing disk 3 for inflating air into the flywheel housing 100; a driving component A4 for driving the carrier 2 to rotate toward the sealing disk 3 is also arranged at the bottom of the top plate 11, and a driving component B5 for driving the sealing disk 3 to seal the flywheel housing 100 is arranged on the outer side of the side plate 1, and the driving component A4 drives the carrier 2 and the sealing disk 3 to move toward the inside of the water tank 12 after the flywheel housing 100 is sealed.

[0060] When testing the air tightness of the flywheel housing 100, the flywheel housing 100 is placed on the outside of the carrier 2 for support, so that the end face of the flywheel housing 100 is set close to the carrier 2, and then the driving component A4 is controlled to drive the carrier 2 to rotate, so that the carrier 2 drives the flywheel housing 100 to rotate toward the outside of the sealing disk 3, and then the sealing disk 3 is driven by the driving component B5 to approach the side of the flywheel housing 100 away from the end face, so that the sealing disk 3 cooperates with the carrier 2 to seal the flywheel housing 100, and then a certain pressure of gas is input into the flywheel housing 100 through the air inlet 31. Finally, under the drive of the driving component A4, the carrier 2 and the sealing disk 3 drive the flywheel housing 100 to move into the water tank 12, and the air tightness of the flywheel housing 100 is judged according to the bubble situation inside the carrier 2, and the leakage position can be observed according to the position of the bubble, thereby achieving the effect of air tightness detection of both the end face and the surrounding side of the flywheel housing 100.

[0061] In order to realize the bearing function of the carrier 2 on the flywheel housing 100, refer to Figure 1 , Figure 2 , Figure 3 and Figure 5The carrier 2 includes a connecting plate 21 connected to the driving assembly A4, a connecting disk 22 is fixedly provided at the bottom of the connecting plate 21, at least two positioning rods 23 are fixedly provided on the outer side of the connecting disk 22, the positioning rods 23 correspond to the holes on the outer side of the flywheel housing 100, a bearing plate 24 is provided on the inner side of the connecting disk 22, a pin body 27 is provided on the outer side of the bearing plate 24, and a sealing gasket A28 for sealing the end surface of the flywheel housing 100 is provided on the outer side of the pin body 27.

[0062] When installing the flywheel housing 100, the hole on the outside of the flywheel housing 100 is inserted into the outside of the positioning rod 23, and the flywheel housing 100 is pushed toward the outside of the supporting plate 24 along the positioning rod 23, so that the pin body 27 on the outside of the supporting plate 24 is automatically inserted into the hole on the end face of the flywheel housing 100. At this time, the sealing gasket A28 is located on the outside of the end face hole, waiting to cooperate with the sealing disk 3 to seal the end face of the flywheel housing 100. At this time, with the support of the positioning rod 23, the flywheel housing 100 can maintain a certain stability when it rotates toward the sealing disk 3 driven by the carrier 2.

[0063] In order to ensure the sealing of the end surface of the flywheel housing 100, refer to Figure 3 , Figure 5 and Figure 6 A plurality of connection holes 25 are provided on the inner side of the bearing plate 24, and adjusting bolts 26 are threadedly provided on the inner side of the connection holes 25. A pin body 27 is fixedly provided on one end of the adjusting bolt 26, and a bolt cap 29 is fixedly provided on the other end of the adjusting bolt 26. A pressure-sensitive element is provided on the side of each sealing gasket A28 away from the flywheel housing 100.

[0064] After the pin body 27 corresponding to the hole position on the end face of the flywheel housing 100 is installed, when the sealing disk 3 presses the other side of the flywheel housing 100, the flywheel housing 100 as a whole exerts pressure on each sealing gasket A28. At this time, the pressure on each sealing gasket A28 can be detected by the pressure-sensitive element. At this time, the bearing plate 24 rotates under the drive of the driving component A4, so that the bolt cap 29 at the other end of the adjusting bolt 26 faces the staff, so that the staff can rotate the adjusting bolt 26 through the bolt cap 29 to feed on the inner side of the connecting hole 25, and then push the corresponding sealing gasket A28 to press close to the end face of the flywheel housing 100 until the electrical signals generated by each pressure-sensitive element are basically the same, so as to facilitate the calibration of each sealing gasket A28, thereby ensuring the sealing performance of the end face surface position. The pressure-sensitive element is a component of the pressure sensor, and its working principle is all existing technology, which will not be repeated here.

[0065] In order to ensure the sealing performance of the sealing disk 3 to the flywheel housing 100, refer to Figure 1 , Figure 3 and Figure 7A sealing gasket B33 is fixedly provided on the side of the sealing disk 3 close to the carrier 2. The sealing gasket B33 is adapted to the side of the flywheel housing 100 away from the end surface. A pressure-sensitive element is provided between the sealing gasket B33 and the sealing disk 3. A pin hole 32 is opened on the inner side of the sealing disk 3 corresponding to the positioning rod 23.

[0066] When the carrier 2 drives the flywheel housing 100 to rotate toward the outside of the sealing disk 3, the positioning rod 23 automatically aligns with the pin hole 32, and then the sealing disk 3 approaches the outside of the flywheel housing 100 under the drive of the driving component B5, so that the sealing disk 3 drives the sealing gasket B33 to be pressed against the outside of the flywheel housing 100. At this time, the pressure on the sealing gasket B33 can be detected according to the pressure-sensitive element between the sealing disk 3 and the sealing gasket B33, and then the sealing effect of the sealing gasket B33 on the flywheel housing 100 can be judged, and the sealing disk 3 will drive the pin hole 32 to be sleeved on the outside of the positioning rod 23, so that the positioning rod 23 can drive the sealing disk 3 to move together when moving toward the inside of the water tank 12, thereby ensuring the synchronization and sealing between the sealing disk 3 and the carrier 2.

[0067] In order to realize the driving function of the driving component B5 on the sealing disk 3, refer to Figure 1 , Figure 2 and Fig.10 The driving component B5 includes a motor B51 fixed on the outer side of the side panel 1, which is used to drive the driving gear 52 to rotate. The driving gear 52 is rotatably arranged on the inner side of the sealing box 53. The sealing box 53 is slidably arranged on the outer side of the side panel 1. An air pipe 54 is slidably arranged on the inner side of the sealing box 53. A plurality of transmission teeth are arranged on the outer side of the air pipe 54, and the transmission teeth on the outer side of the air pipe 54 are meshed and arranged on the outer side of the driving gear 52. One end of the air pipe 54 is fixedly connected with the sealing disk 3 corresponding to the air inlet hole 31; the other end of the air pipe 54 is connected with the inflation device 542 through a hose 541, and the inflation device 542 is fixedly arranged on the outer side of the side panel 1.

[0068] When the flywheel housing 100 is aligned with the sealing disk 3, the motor B51 drives the driving gear 52 inside the sealing box 53 to rotate, so that the driving gear 52 drives the air pipe 54 to slide inside the sealing box 53, and then pushes the sealing disk 3 at one end to be close to the flywheel housing 100 for sealing. After sealing, a certain pressure of gas is input into the flywheel housing 100 through the inflation device 542, and then the sealing disk 3 is driven to move downward by the carrier 2, which can drive the air pipe 54 to move together, so that the air pipe 54 passes through the sealing box 53 and slides vertically on the outside of the side panel 1.

[0069] In order to realize the function of the sealing box 53 sliding with the flywheel housing 100, refer to Figure 2 , Figure 3 , Figure 4 and Fig.10A vertical slide groove 13 is opened on the inner side of the side plate 1, a slider 56 is slidably arranged on the inner side of the vertical slide groove 13, a slide plate 55 is fixedly arranged on the outer side of the slider 56, and the slide plate 55 is fixedly arranged on the outer side of the sealing box 53; a shaft sleeve 57 is fixedly arranged on the driving end of the motor B51, a flower shaft 58 is axially slidably arranged on the inner side of the shaft sleeve 57, and the other end of the flower shaft 58 is coaxially fixedly connected with the driving gear 52.

[0070] When the carrier 2 moves downward, the sealing disk 3 is driven to move synchronously through the positioning rod 23, so that the positioning rod 23 slides downward along the outer side of the side plate 1 through the slider 56, and the sealing box 53 drives the flower shaft 58 to slide out on the inner side of the sleeve 57 to ensure that the sealing disk 3 drives the sealing box 53 to slide stably, and the driving gear 52 always keeps in linkage with the motor B51.

[0071] In order to ensure the stability of the sealing disk 3 on the outside of the side plate 1, refer to Figure 3 and Figure 4 A limit pin 14 is fixedly provided on the outer side of the side plate 1 corresponding to the pin hole 32 , the limit pin 14 is located on the inner side of the pin hole 32 , and the distance between the limit pin 14 and the positioning rod 23 is less than the thickness of the sealing disk 3 .

[0072] When the flywheel housing 100 is away from the sealing disk 3, the sealing disk 3 is positioned on the outside of the side plate 1 by the limit pin 14. When the positioning rod 23 drives the flywheel housing 100 to be located on the outside of the sealing disk 3, the positioning rod 23 and the limit pin 14 are automatically aligned. Since the distance between the two is smaller than the thickness of the flywheel housing 100, the flywheel housing 100 will not deviate from the horizontal restriction when sliding from the outside of the limit pin 14 to the outside of the positioning rod 23, so as to ensure that the sealing disk 3 slides stably on the outside of the limit pin 14 and the positioning rod 23.

[0073] In order to realize the driving function of the driving component A4 on the vehicle 2, refer to Figure 1 , Figure 4 , Figure 8 and Fig. 9 The driving component A4 includes a motor A41, which is fixedly arranged on the top of the limiting sleeve 42, and the limiting sleeve 42 is fixedly arranged on the inner side of the top plate 11. A screw 43 is fixedly arranged on the driving end of the motor A41, and the screw 43 is rotatably arranged inside the limiting sleeve 42. A slip ring 44 is threadedly connected to the outer side of the screw 43, and a connecting block 45 connected to the connecting plate 21 is fixedly arranged on the outer side of the slip ring 44. A rotating groove 421 is opened along the circumferential side of the outer side of the limiting sleeve 42, and a sliding groove 422 is opened perpendicular to the rotating groove 421 on the outer side of the limiting sleeve 42. The sliding groove 422 is located on the side of the limiting sleeve 42 close to the sealing disk 3, and the connecting block 45 is slidably arranged on the inner side of the rotating groove 421 and the sliding groove 422.

[0074] After the flywheel housing 100 is installed on the outside of the carrier 2, the screw 43 is driven to rotate by the motor A41, so that the screw 43 drives the connecting block 45 to slide along the rotating groove 421 to the top of the sliding groove 422. At this time, the connecting block 45 drives the flywheel housing 100 on the outside of the carrier 2 to be located on the outside of the sealing disk 3. After the sealing disk 3 seals the flywheel housing 100, the motor A41 is started again to drive the screw 43 to rotate, so that the screw 43 continues to rotate to drive the connecting block 45 to move downward, and then drives the carrier 2 and the flywheel housing 100 to move toward the inside of the water tank 12. After detection, the carrier 2 can drive the flywheel housing 100 to reset upward by controlling the motor A41 to run in reverse.

[0075] In order to ensure the accuracy of the movement of the connecting block 45, refer to Figure 8 Both sides of the connecting block 45 are provided with lateral sensing probes 451 for detecting the positions of the two ends of the rotating slide groove 421, and the bottom of the connecting block 45 is provided with a bottom sensing probe 452 for detecting the descending depth of the vehicle 2. The display controller 15 and the emergency stop switch 16 are fixedly provided on the outside of the top plate 11 for controlling the automatic operation of the drive component A4 and the drive component B5.

[0076] The operating procedures of the drive components A4 and B5 are set in advance according to the inspection process of the flywheel housing 100, so that after the flywheel housing 100 is installed on the outside of the carrier 2, under the control of the display controller 15, the drive component A4 can drive the carrier 2 to rotate by itself, and then control the drive component B5 to drive the sealing disk 3 to seal the flywheel housing 100, and finally control the drive component A4 to drive the carrier 2, the sealing disk 3 and the flywheel housing 100 to move into the water tank 12. After the inspection is completed, the sealing disk 3 and the carrier 2 are automatically reset through the display controller 15, so that the inspection work is more convenient.

[0077] In order to facilitate observation of the bubbles inside the water tank 12, refer to Figure 1 The water tank 12 is made of a transparent material, and a lighting lamp is fixedly arranged inside the water tank 12.

[0078] When the flywheel housing 100 is located inside the water tank 12 for inspection, a light of light can be generated through the lighting inside the water tank 12. When the flywheel housing 100 leaks, bubbles will be produced. The bubble trajectory can be observed more clearly through the water tank 12, so that the leak location can be quickly found.

[0079] In summary, when the flywheel housing air tightness detection device disclosed in the embodiment of the present application is used, take the flywheel housing 100 to be tested, put the hole on the outside of the flywheel housing 100 on the outside of the positioning rod 23, and push the flywheel housing 100 to the outside of the bearing plate 24 along the positioning rod 23, so that the pin body 27 on the outside of the bearing plate 24 is automatically inserted into the hole on the end face of the flywheel housing 100. At this time, the sealing gasket A28 is located on the outside of the end face hole, waiting to cooperate with the sealing disk 3 to seal the end face of the flywheel housing 100.

[0080] The control program is run through the display controller 15, so that the display controller 15 first controls the motor A41 to run, and the motor A41 drives the screw 43 to rotate so that the connecting block 45 drives the carrier 2 to rotate toward the sealing disk 3. At this time, with the support of the positioning rod 23, the flywheel housing 100 can maintain a certain stability when it rotates toward the sealing disk 3 driven by the carrier 2, and when the positioning rod 23 drives the flywheel housing 100 to be located outside the sealing disk 3, the positioning rod 23 is automatically aligned with the limit pin 14, so that the sealing disk 3 outside the limit pin 14 is automatically aligned with the flywheel housing 100.

[0081] The display controller 15 controls the operation of the motor B51 to drive the gear 52 to rotate, so that the gear 52 drives the air pipe 54 to slide on the inside of the sealing box 53, and then pushes the sealing disk 3 to move to the outside of the positioning rod 23. Since the distance between the limit pin 14 and the positioning rod 23 is smaller than the thickness of the flywheel housing 100, the flywheel housing 100 will not deviate from the horizontal restriction during the sliding process from the outside of the limit pin 14 to the outside of the positioning rod 23, so as to ensure that the sealing disk 3 slides stably on the outside of the limit pin 14 and the positioning rod 23.

[0082] As the motor B51 is driven, the sealing disk 3 is gradually pressed, so that the sealing disk 3 seals the side of the flywheel housing 100 away from the end face through the sealing gasket B33; at this time, the display controller 15 can judge the sealing performance of the flywheel housing 100 according to the pressure signal detected by the pressure-sensitive element. When the pressure value reaches the preset threshold value, the inflation device 542 inputs a certain pressure of gas into the flywheel housing 100 through the hose 541, and the display controller 15 automatically controls the motor A41 to run again, so that the motor A41 drives the connecting block 45 to move vertically downward along the sliding groove 422, so that the connecting block 45 drives the carrier 2, the sealing disk 3 and the flywheel housing 100 to move into the water tank 12, and the airtightness of the flywheel housing 100 is judged by observing the position of the bubbles inside the water tank 12.

[0083] After the detection is completed, the display controller 15 controls the motor A41 to run in reverse, so that the carrier 2, the sealing disk 3 and the flywheel housing 100 are upwardly separated from the water tank 12 and reset, and then the motor B51 is controlled to run in reverse to drive the sealing disk 3 to move to the outside of the limit pin 14 for reset, and finally the motor A41 is controlled to continue to reverse and rotate the carrier 2 to reset, making the detection operation more convenient.

[0084] In this application, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0085] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0086] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A flywheel housing air tightness detection device, characterized in that: include: A side plate (1), the top end of which is connected to the top plate (11), and a water tank (12) is provided at the bottom of the side plate (1); A carrier (2) is arranged at the bottom end of the top plate (11), the carrier (2) comprising a connection plate (22) and a positioning rod (23) arranged on one side of the connection plate (22), and the end face of the flywheel housing (100) to be detected can be positioned at the positioning rod (23); and a plurality of sealing gaskets A (28) are arranged on one side of the carrier (2) corresponding to the end face holes of the flywheel housing (100), and the sealing gaskets A (28) can contact the end face holes of the flywheel housing (100); A sealing disc (3) is arranged on a side of the side plate (1) facing the carrier (2), and the sealing disc (3) is driven to move toward the carrier (2), so that the sealing disc (3) seals the connection surface side of the flywheel housing (100) on the carrier (2); A drive assembly A (4) is arranged on one side of the top plate (11), and the drive assembly A (4) is connected to the carrier (2), so that the flywheel housing (100) sealed by the carrier (2) and the sealing disk (3) can move toward the water tank (12) for air tightness testing; Wherein, the driving component A (4) comprises: A limiting sleeve (42) is arranged on the inner side of the top plate (11); A screw rod (43) is rotatably disposed in the limiting sleeve (42), wherein the screw rod (43) is driven by a motor A (41), and the motor A (41) is disposed at the top end of the limiting sleeve (42); A slip ring (44) is threadedly arranged on the outside of the screw rod (43); the slip ring (44) is connected to the carrier (2) via a connecting block (45).

2. The flywheel housing air tightness detection device according to claim 1, characterized in that: An air inlet hole (31) is provided on the inner side of the sealing disk (3), and an air pipe (54) connected to an air charging device (542) is provided at the air inlet hole (31); A sealing gasket B (33) is provided on a side of the sealing disk (3) close to the carrier (2), and the sealing gasket B (33) is adapted to fit one side of the flywheel housing (100); A pressure-sensitive element is provided between the sealing gasket B (33) and the sealing disk (3).

3. The flywheel housing air tightness detection device according to claim 2, characterized in that: The inner side of the sealing disk (3) is provided with a pin hole (32) corresponding to the positioning rod (23); when the sealing disk (3) is driven to move toward the carrier (2), the positioning rod (23) penetrates into the corresponding pin hole (32).

4. The flywheel housing air tightness detection device according to claim 3, characterized in that: The air pipe (54) is connected to one side of the sealing disk (3), and the air pipe (54) is arranged in a sealing box (53); The sealing box (53) is slidably arranged on one side of the side plate (1) via a slide plate (55), so that when the carrier (2) is moved toward the water tank (12) by the driving assembly A (4), the sealing disk (3) can be driven to move synchronously.

5. The flywheel housing air tightness detection device according to claim 1, characterized in that: The carrier (2) further comprises: A connecting plate (21) is arranged on one side of the driving assembly A (4), and a connecting plate (22) is connected to one end of the connecting plate (21); A carrying plate (24) disposed on the inner side of the connecting plate (22); The pin body (27) is arranged on one side of the bearing plate (24), and the sealing gasket A (28) is sleeved on the outer side corresponding to the pin body (27).

6. The flywheel housing air tightness detection device according to claim 5, characterized in that: A connecting hole (25) is provided on the inner side of the bearing plate (24), and an adjusting bolt (26) is arranged in the connecting hole (25); The pin body (27) is arranged on one side of the adjusting bolt (26); A pressure-sensitive element is provided on a side of each sealing gasket A (28) away from the flywheel housing (100).

7. The flywheel housing air tightness detection device according to claim 4, characterized in that: A driving gear (52) is rotatably arranged inside the sealing box (53), and a transmission tooth is provided on the outer side of the air pipe (54), so that the air pipe (54) is driven by the driving gear (52) to move along the sealing box (53); A motor B (51) is disposed on one side of the side plate (1); an output end of the motor B (51) is connected to a shaft sleeve (57); a flower shaft (58) is slidably disposed in the shaft sleeve (57); the flower shaft (58) passes through the sealing box (53) and is connected to one side of the driving gear (52).

8. The flywheel housing air tightness detection device according to claim 1, characterized in that: A rotational slide groove (421) is provided on the outer side of the limiting sleeve (42), and the rotational slide groove (421) is arranged along the circumference of the limiting sleeve (42); A sliding groove (422) is also provided on the outer side of the limiting sleeve (42), the sliding groove (422) is arranged along the axial direction of the limiting sleeve (42), and the rotating groove (421) is connected to the sliding groove (422); The connecting block (45) is capable of moving in the rotating slide groove (421) and the sliding slide groove (422).

9. The flywheel housing air tightness detection device according to claim 8, characterized in that: A limit pin (14) is provided on one side of the side plate (1) corresponding to the pin hole (32); when the connection block (45) drives the carrier (2) to rotate to one side of the sealing disk (3), the limit pin (14) is arranged opposite to the positioning rod (23).

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