A motor housing sealing test device

Abstract

The present invention discloses a motor housing sealing test device, wherein a driving component is installed on the side wall of the fixing frame, and a pull-push component 2 and a pull-push component 1 are installed on the upper connecting plate and the lower connecting plate, one end of the pull-push component 2 is connected to the driving component, and one end of the pull-push component 1 is connected to the driving component, and the upper end of the pull-push component 1 and the upper end of the pull-push component 2 are installed with a press-fit test component 2, and the lower end of the pull-push component 1 and the lower end of the pull-push component 2 are installed with a press-fit test component 1, and the press-fit test component 2 and the press-fit test component 1 are placed opposite to each other. The present invention belongs to the technical field of motor housing sealing test, and in particular, relates to a motor housing sealing test device, which can self-fix and seal the motor housing, and can also locate and process damaged leakage.

Description

Technical Field

[0001] The invention belongs to the technical field of motor housing sealing test, and in particular relates to a motor housing sealing test device. Background Art

[0002] The motor housing is mainly used to protect the outer shell of its internal electrical components. Large motors are generally made of cast iron, and small motors are generally made of aluminum alloy. In a humid environment, ordinary motor housing materials are very easy to corrode and rust. The waterproof performance of the motor depends on the protection made on the housing. After the motor is eroded by water, it will cause unstable use or the motor will be scrapped. Therefore, it is necessary to test the air tightness of the motor housing. Whether the motor housing is airtight is good or not is also the key to ensure the normal operation of the motor and avoid the electric sparks, arcs and other phenomena generated during the operation of the motor to cause harm to the surrounding environment.

[0003] When the existing detection equipment is used to detect the motor housing, the motor housing is prone to shaking when the detection equipment is subjected to external force, and the fixing effect of the motor housing is poor, which affects the detection effect of the motor housing;

[0004] Moreover, in the prior art, when conducting sealing tests, the motor housing is generally placed in water, and then the changes in the water surface are observed to detect whether the sealing of the motor housing is qualified. However, this detection method is not only inefficient and not intuitive, but also some sealing problems are difficult to find, which is not conducive to the subsequent use of the motor housing. Moreover, this method cannot detect the specific leakage location and needs to be manually found and repaired. The process is relatively cumbersome and reduces production efficiency. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a motor housing sealing test device.

[0006] The technical solution adopted by the present invention is as follows: a motor housing sealing test device comprises a fixing frame for supporting and fixing, an upper connecting plate is installed at the upper end of the fixing frame, a lower connecting plate is installed at the lower end of the fixing frame, the fixing frame supports and fixes the upper connecting plate and the lower connecting plate, a driving assembly is installed on the side wall of the fixing frame, the fixing frame supports the driving assembly, a pulling and pushing assembly 2 and a pulling and pushing assembly 1 are installed on the upper connecting plate and the lower connecting plate, one end of the pulling and pushing assembly 2 is connected to the driving assembly, and one end of the pulling and pushing assembly 1 is also connected to the driving assembly, a pressing test assembly 2 is installed on the upper end of the pulling and pushing assembly 1 and the upper end of the pulling and pushing assembly 2, a pressing test assembly 1 is installed on the lower end of the pulling and pushing assembly 1 and the lower end of the pulling and pushing assembly 2, and the pressing test assembly 2 and the pressing test assembly 1 are placed opposite to each other.

[0007] Furthermore, the pressing test assembly 1 and the pressing test assembly 2 have the same structure, and only one group is introduced here. The pressing test assembly 2 includes an upper pressing test plate and an upper extrusion fixing plate, the upper pressing test plate is connected to the upper end of the pulling and pushing assembly 1 and the upper end of the pulling and pushing assembly 2, the upper extrusion fixing plate is arranged at the lower end of the upper pressing test plate, a reset spring 1 is installed between the upper extrusion fixing plate and the upper pressing test plate, a folding capsule 1 is installed between the outer side wall of the upper extrusion fixing plate and the outer side wall of the upper pressing test plate, the bottom wall of the upper extrusion fixing plate is provided with an annular groove, and a folding capsule 2 is installed between the upper wall of the annular groove and the upper pressing test plate, a sealed space 1 is formed between the folding capsule 1, the folding capsule 2, the upper pressing test plate and the upper extrusion fixing plate, and a sealed space 2 is formed between the folding capsule 2, the upper pressing test plate, the annular groove and the upper extrusion fixing plate.

[0008] Preferably, the upper extrusion fixed plate is provided with three vent holes, and the three vent holes are all arranged in the sealed space two. The opposite side walls of the annular groove are respectively installed with fixed bag one and fixed bag two, and the opposite side walls of the annular groove are respectively installed with vent hole one and vent hole two. The upper wall of the annular groove is provided with a ventilation cavity three, and the ventilation cavity three is connected with the sealed space one. The vent hole one connects the fixed bag one and the sealed space one, and the gas in the sealed space one enters the fixed bag one through the vent hole one, and the vent hole two connects the fixed bag two and the ventilation cavity three. The gas in the sealed space one enters the ventilation cavity three and enters the fixed bag two through the vent hole two. The upper inner wall of the annular groove is provided with a rubber layer.

[0009] As a preferred embodiment of the present invention, a hydraulic rod 1 is installed at the center of the upper extrusion fixed plate, an extrusion plate 1 is installed at the movable end of the hydraulic rod 1, a reset spring 2 is installed on the bottom wall of the extrusion plate 1, an extrusion plate 2 is installed at the lower end of the reset spring 2, a folding bag 3 is installed between the extrusion plate 1 and the extrusion plate 2, a sealed space 3 is formed between the folding bag 3, the extrusion plate 1 and the extrusion plate 2, an upper test sealing plate is provided at the lower end of the extrusion plate 2, a folding bag 4 is installed between the upper test sealing plate and the extrusion plate 2, and a sealed space 4 is formed between the folding bag 4, the extrusion plate 2 and the upper test sealing plate.

[0010] Among them, the inner wall of the extrusion plate 2 is provided with a ventilation cavity 1, the upper wall of the extrusion plate 2 is provided with a ventilation hole 4, and the side wall is provided with a ventilation hole 5. The ventilation hole 4 is arranged in the folding bag 3, the ventilation hole 4 connects the sealed space 3 and the ventilation cavity 1, the ventilation cavity 1 is connected with the ventilation hole 5, the hydraulic rod 1 works to push the extrusion plate down, the extrusion plate 1 squeezes the reset spring 2, the reset spring 2 is compressed, the folding bag 3 is compressed, and the gas in the sealed space 3 enters the ventilation cavity 1 through the ventilation hole 4, and enters the ventilation hole 5 from the ventilation cavity 1, and is discharged from the ventilation hole 5.

[0011] Among them, the upper test sealing plate is provided with a ventilation cavity 2, the upper wall of the upper test sealing plate is provided with a ventilation hole 6, the ventilation hole 6 is arranged in a folding bag 4, the side wall of the upper test sealing plate is provided with a sealing bag, the ventilation hole 6 connects the sealing space 4 and the ventilation cavity 2, the ventilation cavity 2 is connected to the sealing bag, the extrusion plate 2 moves downward to extrude the folding bag 4, the gas in the sealing space 4 enters into the ventilation cavity 2 through the ventilation hole 6, the gas in the ventilation cavity 2 enters into the sealing bag, the sealing bag bulges, and the side wall of the motor is sealed.

[0012] The cam is provided with a plurality of gears, and the plurality of gears are connected to each other with a plurality of gears, and the plurality of gears are connected to each other with a plurality of gears.

[0013] Furthermore, the pulling and pushing component 1 and the pulling and pushing component 2 have the same structure, and only one of them is introduced here. The pulling and pushing component 1 includes an upper sleeve rod 1 and a lower sleeve rod 1, the upper sleeve rod 1 is arranged on an upper connecting plate, and the lower sleeve rod 1 is arranged on the lower connecting plate, the upper connecting plate supports and fixes the upper sleeve rod 1, and the lower connecting plate supports and fixes the lower sleeve rod 1. An upper spring 1 is installed between the upper sleeve rod 1 and the upper wall of the pressing test component 2, and a lower spring 1 is installed between the lower sleeve rod 1 and the bottom wall of the pressing test component 1. An upper connecting rope 1 is movably passed through the upper sleeve rod 1, and a lower connecting rope 1 is movably passed through the lower sleeve rod 1. One end of the upper connecting rope 1 is wrapped around a connecting shaft 1, and the other end passes through the upper spring 1 and is connected to the upper wall of the pressing test component 2. One end of the lower connecting rope 1 is wrapped around a connecting shaft 1, and the other end passes through the lower spring 1 and is connected to the bottom wall of the pressing test component 1.

[0014] Preferably, the upper wall of the upper test sealing plate on the second press-fit test assembly and the lower wall of the upper test sealing plate on the first press-fit test assembly are both provided with pressure sensors for detecting the air tightness of the motor housing.

[0015] After adopting the above structure, the beneficial effects of the present invention are as follows:

[0016] (1) The gas in the sealed space 1 of the press-fit test assembly 1 and the press-fit test assembly 2 enters the fixed bag 1 through the vent hole 1, and the gas in the sealed space 1 enters the vent cavity 3 and enters the fixed bag 2 through the vent hole 2. The fixed bag 1 and the fixed bag 2 swell, achieving the technical effect of sealed fixation of the upper and lower ends of the motor housing.

[0017] (2) When the hydraulic rod 1 is working, the two groups of extrusion plates 1 squeeze the corresponding reset springs 2 respectively, and the reset springs 2 squeeze the extrusion plate 2. The gas in the sealed space 4 enters the ventilation chamber 2 through the vent hole 6, and the gas in the ventilation chamber 2 enters the sealing bag. The sealing bags on the side walls of the two groups of upper test sealing plates are bulged to seal the inner wall of the motor housing.

[0018] (3) When the reset spring 2 is compressed, the gas in the sealed space 3 enters the ventilation cavity 1 through the ventilation hole 4, and enters the ventilation hole 5 from the ventilation cavity 1, and is discharged from the ventilation hole 5. The internal pressure of the sealed motor housing increases, which makes it easier for the pressure sensor to perform pressure detection on the sealed environment inside the motor housing.

[0019] (4) When the seal of the motor housing is damaged or leaking, it can be roughly located, making it easier to repair the damaged or leaking part.

[0020] (5) An upper sealing environment is formed between the motor housing, the press-fit test assembly 2, and the upper test sealing plate on the press-fit test assembly 2; a lower sealing environment is formed between the motor housing, the press-fit test assembly 1, and the upper test sealing plate on the press-fit test assembly 1. The two sets of upper test sealing plates that abut against each other divide the internal space of the motor housing into two parts, thereby realizing a partial sealing test of the motor housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0022] Figure 1 A schematic structural diagram of a motor housing sealing test device proposed by the present invention;

[0023] Figure 2 A three-dimensional diagram of a motor housing sealing test device proposed by the present invention;

[0024] Figure 3 This is a front cross-sectional view of a motor housing sealing test device proposed by the present invention;

[0025] Figure 4 for Figure 3 A local enlarged view of point A;

[0026] Figure 5for Figure 4 A local enlarged view of point B;

[0027] Figure 6 This is a schematic diagram of the structure of the connecting shaft 1 and the connecting shaft 2 proposed by the present invention;

[0028] Figure 7 A diagram showing the positional relationship between the press-fit test assembly 1 and the press-fit test assembly proposed by the present invention;

[0029] Figure 8 A schematic diagram of the structure of the press-fit test assembly 1 and the press-fit test assembly for performing a fixed sealing test on a motor housing;

[0030] Fig. 9 A schematic diagram of the structure of the press-fit test assembly 1 and the press-fit test assembly when they are away from each other proposed by the present invention.

[0031] In the accompanying drawings: 1, fixing frame, 2, upper connecting plate, 3, lower connecting plate, 4, driving assembly, 5, pressure sensor, 6, pull-push assembly 2, 7, pull-push assembly 1, 8, pressing test assembly 2, 9, pressing test assembly 1, 10, upper pressing test plate, 11, upper extrusion fixing plate, 12, reset spring 1, 13, folding capsule 1, 14, annular groove, 15, folding capsule 2, 16, sealing space 1, 17, sealing space 2, 18, vent 3, 19, fixing capsule 1, 20, fixing capsule 2, 21, vent 1, 22, vent 2, 23, ventilation cavity 3, 24, hydraulic rod 1, 25, extrusion plate 1, 26, reset spring 2, 27, extrusion plate 2 , 28. Folding capsule three, 29. Sealed space three, 30. Upper test sealing plate, 31. Folding capsule four, 32. Sealed space four, 33. Ventilation cavity one, 34. Ventilation hole four, 35. Ventilation hole five, 36. Ventilation cavity two, 37. Ventilation hole six, 38. Sealing capsule, 39. Support plate one, 40. Support plate two, 41. Mobile frame, 42. Hydraulic rod two, 43. Guide rail, 44. Upper tooth condition, 45. Lower tooth condition, 46. Connecting shaft one, 47. Connecting shaft two, 48. Gear one, 49. Gear two, 50. Upper sleeve rod one, 51. Lower sleeve rod one, 52. Upper spring one, 53. Lower spring one, 54. Upper connecting rope one, 55. Lower connecting rope one, 56. Motor housing. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] like Figure 1-Figure 9 As shown, a motor housing sealing test device includes a fixing frame 1 for supporting and fixing, an upper connecting plate 2 is installed on the upper end of the fixing frame 1, a lower connecting plate 3 is installed on the lower end of the fixing frame 1, the fixing frame 1 supports and fixes the upper connecting plate 2 and the lower connecting plate 3, a driving component 4 is installed on the side wall of the fixing frame 1, the fixing frame 1 supports the driving component 4, a pulling and pushing component 2 6 and a pulling and pushing component 1 7 are installed on the upper connecting plate 2 and the lower connecting plate 3, one end of the pulling and pushing component 2 6 is connected to the driving component 4, and the One end of the pull-push component 17 is also connected to the driving component 4, and a press-fit test component 28 is installed at the upper end of the pull-push component 17 and the upper end of the pull-push component 26, and a press-fit test component 19 is installed at the lower end of the pull-push component 17 and the lower end of the pull-push component 26. The press-fit test component 28 and the press-fit test component 19 are placed opposite to each other, and the upper end of the motor housing 56 to be tested is stuck in the press-fit test component 28, and the lower end of the motor housing 56 is stuck in the press-fit test component 19, so as to achieve the fixing, sealing and testing of the motor housing 56;

[0035] The pressing test assembly 1 9 and the pressing test assembly 2 8 have the same structure, and only one of them is introduced here. The pressing test assembly 2 8 includes an upper pressing test plate 10 and an upper extrusion fixing plate 11. The upper pressing test plate 10 is connected to the upper end of the pulling and pushing assembly 1 7 and the upper end of the pulling and pushing assembly 2 6. The upper extrusion fixing plate 11 is arranged at the lower end of the upper pressing test plate 10. A reset spring 12 is installed between the upper extrusion fixing plate 11 and the upper pressing test plate 10. A folding capsule 13 is installed between the outer wall of the plate 11 and the outer wall of the upper pressing test plate 10, the bottom wall of the upper extrusion fixing plate 11 is provided with an annular groove 14, and a folding capsule 2 15 is installed between the upper wall of the annular groove 14 and the upper pressing test plate 10. A sealed space 16 is formed between the folding capsule 13, the folding capsule 2 15, the upper pressing test plate 10 and the upper extrusion fixing plate 11, and a sealed space 2 17 is formed between the folding capsule 2 15, the upper pressing test plate 10, the annular groove 14 and the upper extrusion fixing plate 11.

[0036] In this embodiment, the upper extrusion fixing plate 11 is provided with a vent hole 3 18, and the vent holes 3 18 are all arranged in the sealed space 2 17. The opposite side walls of the annular groove 14 are respectively installed with a fixed bag 19 and a fixed bag 20, and the opposite side walls of the annular groove 14 are respectively installed with a vent hole 1 21 and a vent hole 22, and the upper wall of the annular groove 14 is provided with a ventilation cavity 3 23, and the ventilation cavity 3 23 is connected to the sealed space 16, and the vent hole 1 21 is connected to the fixed bag 19 and the sealed space 16, and the sealed The gas in space 16 enters fixed bag 19 through vent hole 1 21, vent hole 22 connects fixed bag 20 and ventilation cavity 3 23, the gas in sealed space 16 enters ventilation cavity 3 23 and enters fixed bag 2 20 through vent hole 22, a rubber layer is provided on the upper wall of the annular groove 14, when the upper end of the motor housing is stuck in the annular groove 14, the upper wall of the motor housing is placed in contact with the rubber layer, fixed bag 19 and fixed bag 2 20 bulge, and the upper end of the motor housing is sealed and fixed.

[0037] A hydraulic rod 24 is installed at the center of the upper extrusion fixed plate 11, and an extrusion plate 25 is installed at the movable end of the hydraulic rod 24. A reset spring 26 is installed on the bottom wall of the extrusion plate 25, and an extrusion plate 27 is installed at the lower end of the reset spring 26. A folding capsule 3 28 is installed between the extrusion plate 1 25 and the extrusion plate 27, and a sealed space 3 29 is formed between the folding capsule 3 28, the extrusion plate 1 25 and the extrusion plate 27. An upper test sealing plate 30 is provided at the lower end of the extrusion plate 27, and a folding capsule 4 31 is installed between the upper test sealing plate 30 and the extrusion plate 27, and a sealed space 4 32 is formed between the folding capsule 4 31, the extrusion plate 27 and the upper test sealing plate 30.

[0038] In this embodiment, a ventilation cavity 33 is provided on the inner wall of the extrusion plate 27, a ventilation hole 4 34 is provided on the upper wall of the extrusion plate 27, and a ventilation hole 5 35 is provided on the side wall. The ventilation hole 4 34 is provided in the folding bag 3 28, and the ventilation hole 4 34 connects the sealed space 3 29 and the ventilation cavity 33. The ventilation cavity 33 is connected with the ventilation hole 5 35 through communication. The hydraulic rod 1 24 pushes the extrusion plate 1 25 downward, and the extrusion plate 1 25 squeezes the reset spring 26. The reset spring 26 is compressed, and the folding bag 3 28 is compressed. The gas in the sealed space 3 29 enters the ventilation cavity 33 through the ventilation hole 4 34, and enters the ventilation hole 5 35 from the ventilation cavity 33, and is discharged from the ventilation hole 5 35.

[0039] A ventilation cavity 2 36 is provided in the upper test sealing plate 30, and a ventilation hole 6 37 is provided on the upper wall of the upper test sealing plate 30. The ventilation hole 6 37 is provided in the folding bag 4 31. A sealing bag 38 is provided on the side wall of the upper test sealing plate 30. The ventilation hole 6 37 connects the sealing space 4 32 and the ventilation cavity 2 36. The ventilation cavity 2 36 is connected to the sealing bag 38. The extrusion plate 2 27 moves downward to extrude the folding bag 4 31. The gas in the sealing space 4 32 enters into the ventilation cavity 2 36 through the ventilation hole 6 37. The gas in the ventilation cavity 2 36 enters into the sealing bag 38. The sealing bag 38 bulges to seal the inner wall of the motor housing 56.

[0040] The driving assembly 4 includes a support plate 1 39, a support plate 2 40, a mobile frame 41 and a hydraulic rod 2 42. The support plate 1 39 and the support plate 2 40 are respectively arranged on opposite sides of the fixed frame 1. The fixed frame 1 supports and fixes the support plate 1 39 and the support plate 2 40. A guide rail 43 is installed on the fixed frame 1. The mobile frame 41 is movably connected to the guide rail 43. The fixed end of the hydraulic rod 2 42 is arranged on the fixed frame 1. The movable end of the hydraulic rod 2 42 is connected to the side wall of the mobile frame 41. The mobile frame 41 An upper gear condition 44 is installed on the upper end of the movable frame 41, and a lower gear condition 45 is installed on the lower end of the movable frame 41. The upper gear condition 44 and the lower gear condition 45 are placed alternately. A connecting shaft 1 46 is movably installed on the support plate 1 39, and a connecting shaft 2 47 is movably installed on the support plate 2 40. A gear 1 48 is installed on the connecting shaft 1 46, and a gear 2 49 is installed on the connecting shaft 2 47. The lower end of the gear 1 48 is meshed and connected with the lower gear condition 45, and the upper end of the gear 2 49 is meshed and connected with the upper gear condition 44.

[0041] The pulling and pushing assembly 17 and the pulling and pushing assembly 26 have the same structure, and only one of them is introduced here. The pulling and pushing assembly 17 includes an upper sleeve rod 150 and a lower sleeve rod 151. The upper sleeve rod 150 is arranged on the upper connecting plate 2, and the lower sleeve rod 151 is arranged on the lower connecting plate 3. The upper connecting plate 2 supports and fixes the upper sleeve rod 150, and the lower connecting plate 3 supports and fixes the lower sleeve rod 151. An upper spring 152 is installed between the upper sleeve rod 150 and the upper wall of the pressing test assembly 28. The lower sleeve rod 151 is provided on the upper connecting plate 2. A lower spring 53 is installed between the rod 51 and the bottom wall of the press-fit test assembly 9, an upper connecting rope 54 is movably passed through the upper sleeve rod 50, and a lower connecting rope 55 is movably passed through the lower sleeve rod 51. One end of the upper connecting rope 54 is wound around the connecting shaft 46, and the other end passes through the upper spring 52 and is connected to the upper wall of the press-fit test assembly 8. One end of the lower connecting rope 55 is wound around the connecting shaft 46, and the other end passes through the lower spring 53 and is connected to the bottom wall of the press-fit test assembly 9.

[0042] It should be noted that the hydraulic rod 2 42 works to push the moving frame 41 to make reciprocating motion along the guide rail 43, and the moving frame 41 drives the upper gear condition 44 and the lower gear condition 45 to move. When the moving frame 41 moves in the direction close to the pressing test component 9, the gear 1 48 rotates clockwise, and the gear 2 49 rotates counterclockwise. When the gear 1 48 drives the connecting shaft 1 46 to rotate clockwise, the upper connecting rope 1 54 and the lower connecting rope 1 55 can be tightened at the same time. When the gear 2 49 drives the connecting shaft 2 47 to rotate counterclockwise, the connecting rope on the pulling and pushing component 2 6 can be tightened at the same time. When the upper connecting rope 1 54 is tightened, the pressing test component 2 8 is driven to rise, and the upper spring 1 52 is compressed. When the lower connecting rope 1 55 is tightened, the pressing test component 9 is driven to move downward, and the lower spring 1 53 is compressed.

[0043] When the moving frame 41 moves in the direction away from the pressing test component 9, the gear 1 48 rotates counterclockwise and the gear 2 49 rotates clockwise. When the gear 1 48 drives the connecting shaft 1 46 to rotate counterclockwise, the upper connecting rope 1 54 and the lower connecting rope 1 55 can be loosened at the same time. When the gear 2 49 drives the connecting shaft 2 47 to rotate clockwise, the connecting rope on the pulling and pushing component 2 6 can be loosened at the same time. After the upper connecting rope 1 54 is loosened, the upper spring 1 52 pushes the pressing test component 2 8, and the pressing test component 2 8 moves downward. After the lower connecting rope 1 55 is loosened, the lower spring 1 53 pushes the pressing test component 9, and the pressing test component 9 rises.

[0044] The upper wall of the upper test sealing plate 30 on the press-fit test assembly 2 8 and the lower wall of the upper test sealing plate 30 on the press-fit test assembly 1 9 are both provided with pressure sensors 5 for detecting the air tightness of the motor housing.

[0045] The specific usage is as follows:

[0046] Initially, the upper connecting rope 54 and the lower connecting rope 55 on the pulling and pushing component 7 and the connecting rope on the pulling and pushing component 2 6 respectively fix the pressing test component 2 8 and the pressing test component 1 9. At this time, the upper spring 52 and the lower spring 53 and the spring on the pulling and pushing component 2 6 are all in a compressed state, and the distance between the pressing test component 1 9 and the pressing test component 2 8 is large.

[0047] The process of conducting a leak test is as follows:

[0048] The lower end of the motor housing 56 to be tested is stuck in the annular groove 14 in the pressing test component 19, and the upper end of the motor housing 56 is arranged at the lower end of the annular groove 14 in the pressing test component 28. Then the moving frame 41 moves away from the pressing test component 19, the connecting rope is relaxed, the upper spring 152 and the lower spring 153 and the spring on the pulling and pushing component 26 respectively drive the pressing test component 28 and the pressing test component 19, the pressing test component 28 moves down, and the pressing test component 19 moves up, so that the upper end of the motor housing 56 is stuck in the annular groove 14 in the pressing test component 28. At this time, the upper and lower ends of the motor housing 56 are both against the rubber layer in the annular groove 14, and the rubber layer seals the upper and lower ends of the motor housing 56. During the movement, the lower end of the upper test sealing plate 30 on the pressing test component 28 The end of the motor housing is abutted against the upper end of the upper test sealing plate 30 on the press-fit test assembly 19. As the press-fit test assembly 28 continues to move downward and the press-fit test assembly 19 continues to move upward, the gas in the sealed space 16 in the press-fit test assembly 28 enters the fixed bag 19 through the vent hole 121, the gas in the sealed space 16 enters the ventilation cavity 3 23, and enters the fixed bag 20 through the vent hole 22. The fixed bag 19 and the fixed bag 20 swell, and the upper end of the motor housing is sealed and fixed again. The gas in the sealed space 16 in the press-fit test assembly 19 enters the fixed bag 19 through the vent hole 121, the gas in the sealed space 16 enters the ventilation cavity 3 23, and enters the fixed bag 20 through the vent hole 22. The fixed bag 19 and the fixed bag 20 swell, and the lower end of the motor housing is sealed and fixed again.

[0049] The upper pressing test plate 10 in the pressing test assembly 2 8 squeezes the gas in the sealed space 2 17, and the gas in the sealed space 2 17 enters the sealed motor housing 56 through the vent hole 3 18. The upper pressing test plate 10 in the pressing test assembly 1 9 squeezes the gas in the sealed space 2 17, and the gas in the sealed space 2 17 enters the sealed motor housing 56 through the vent hole 3 18.

[0050] At the same time, the hydraulic rod 1 24 on the pressing test assembly 2 8 works to push the extrusion plate 1 25 downward, and the hydraulic rod 1 24 on the pressing test assembly 1 9 works to push the extrusion plate 1 25 upward, and the two groups of extrusion plates 1 25 respectively squeeze the corresponding reset springs 26, and the reset springs 26 squeeze the extrusion plates 27, and the extrusion plates 27 move downward to squeeze the folding capsules 4 31, and the gas in the sealing space 4 32 enters the ventilation cavity 2 36 through the vent holes 6 37, and the gas in the ventilation cavity 2 36 enters the sealing capsule 38, and the sealing capsules 38 on the side walls of the two groups of upper test sealing plates 30 are bulged to seal the inner wall of the motor housing 56;

[0051] At this time, an upper sealing environment is formed between the motor housing 56, the press-fit test assembly 2 8, and the upper test sealing plate 30 on the press-fit test assembly 2 8, and a lower sealing environment is formed between the motor housing 56, the press-fit test assembly 1 9, and the upper test sealing plate 30 on the press-fit test assembly 1 9. The two sets of upper test sealing plates 30 that abut against each other divide the internal space of the motor housing into two parts, thereby realizing a partial sealing test of the motor housing 56.

[0052] After the gas in the extrusion plate 27 enters the sealing bag 38, as the hydraulic rod 1 24 continues to move, the reset spring 26 is compressed, the folding bag 3 28 is compressed, and the gas in the sealing space 3 29 enters the ventilation cavity 1 33 through the vent hole 4 34, and enters the vent hole 5 35 from the ventilation cavity 1 33, and is discharged from the vent hole 5 35. The vent hole 5 35 in the press-fit test assembly 2 8 discharges the gas into the upper sealing environment, and the vent hole 5 35 in the press-fit test assembly 1 9 discharges the gas into the lower sealing environment. The pressure in the upper sealing environment and the lower sealing environment increases, and the pressure sensor 5 performs pressure detection on the upper sealing environment and the lower sealing environment respectively.

[0053] During the test, if the value of the pressure sensor 5 in the press-fit test assembly 1 9 is stable and unchanged, and the value of the pressure sensor 5 in the press-fit test assembly 2 8 is stable and unchanged, and the pressure values ​​of the two are different, it means that the sealing performance of the motor housing 56 and the upper test sealing plate 30 are good, and the motor housing 56 has no damage or leakage;

[0054] If the value of the pressure sensor 5 in the press-fit test assembly 1 9 is stable and does not change, and the value of the pressure sensor 5 in the press-fit test assembly 2 8 is stable and does not change, and the pressure values ​​of the two tend to be the same in the later period, it means that the sealing performance of the motor housing 56 is good, the motor housing 56 has no damage or leakage, and the upper test sealing plate 30 has poor sealing;

[0055] If the value of the pressure sensor 5 in the press-fit test assembly 2 8 gradually decreases, and the value of the pressure sensor 5 in the press-fit test assembly 1 9 is stable and does not change, it means that there is damage and leakage in the upper part of the motor housing 56, and there is no damage and leakage in the lower part of the motor housing 56, and the sealing performance of the upper test sealing plate 30 is good;

[0056] If the value of the pressure sensor 5 in the press-fit test assembly 1 9 gradually decreases, and the value of the pressure sensor 5 in the press-fit test assembly 2 8 is stable and does not change, it means that there is damage and leakage at the lower part of the motor housing 56, and there is no damage and leakage at the upper part of the motor housing 56, and the sealing performance of the upper test sealing plate 30 is good;

[0057] If the value of the pressure sensor 5 in the press-fit test assembly 1 9 gradually decreases, and the value of the pressure sensor 5 in the press-fit test assembly 2 8 gradually decreases, it means that the motor housing 56 as a whole is damaged and leaking or the sealing performance of the upper test sealing plate 30 is poor;

[0058] The rough positioning process when the sealing performance of the motor housing 56 is damaged and leaking is as follows:

[0059] If there is damage and leakage on the upper part of the motor housing 56, the hydraulic rod 1 24 in the pressing test assembly 2 8 drives the extrusion plate 1 25, the extrusion plate 2 27 and the upper test sealing plate 30 to move upward as a whole, and the hydraulic rod 1 24 in the pressing test assembly 1 9 also drives the extrusion plate 1 25, the extrusion plate 2 27 and the upper test sealing plate 30 to move upward as a whole, and then the sealing performance test is performed again according to the above steps. At this time, the sealing environment of the upper part of the motor housing 56 becomes smaller, and the sealing environment of the lower part of the motor housing 56 becomes larger. If the value of the pressure sensor 5 in the pressing test assembly 2 8 gradually decreases at this time, the pressure sensor 5 in the pressing test assembly 1 9 If the value of the pressure sensor 5 is stable and unchanged, it means that the upper part of the motor housing 56 is damaged and leaking, and the lower part of the motor housing 56 is not damaged and leaking. Continue to adjust, the sealing environment of the upper part of the motor housing 56 continues to decrease, and the sealing environment of the lower part of the motor housing 56 continues to increase, until the value of the pressure sensor 5 in the press-fit test component 1 9 gradually decreases, and the value of the pressure sensor 5 in the press-fit test component 2 8 is stable and unchanged, it means that the lower part of the motor housing 56 is damaged and leaking, and the upper part of the motor housing 56 is not damaged and leaking. At this time, the location of the damage and leakage of the motor housing 56 can be roughly determined, and then it can be processed;

[0060] If the lower part of the motor housing 56 is damaged or leaking, the same operation is performed.

[0061] The steps for adjusting the positions of the press-fit test assembly 1 9 and the press-fit test assembly 2 8 are as follows:

[0062] The hydraulic rod 2 42 works to push the moving frame 41 to make reciprocating motion along the guide rail 43, and the moving frame 41 drives the upper gear condition 44 and the lower gear condition 45 to move. When the moving frame 41 moves toward the direction close to the pressing test component 1 9, the gear 1 48 rotates clockwise, and the gear 2 49 rotates counterclockwise. When the gear 1 48 drives the connecting shaft 1 46 to rotate clockwise, the upper connecting rope 1 54 and the lower connecting rope 1 55 can be tightened at the same time. When the gear 2 49 drives the connecting shaft 2 47 to rotate counterclockwise, the connecting rope on the pulling and pushing component 2 6 can be tightened at the same time. When the upper connecting rope 1 54 is tightened, the pressing test component 2 8 is driven to rise, and the upper spring 1 52 is compressed. When the lower connecting rope 1 55 is tightened, the pressing test component 1 9 is driven to move downward, and the lower spring 1 53 is compressed.

[0063] When the moving frame 41 moves in the direction away from the pressing test component 9, the gear 1 48 rotates counterclockwise and the gear 2 49 rotates clockwise. When the gear 1 48 drives the connecting shaft 1 46 to rotate counterclockwise, the upper connecting rope 1 54 and the lower connecting rope 1 55 can be loosened at the same time. When the gear 2 49 drives the connecting shaft 2 47 to rotate clockwise, the connecting rope on the pulling and pushing component 2 6 can be loosened at the same time. After the upper connecting rope 1 54 is loosened, the upper spring 1 52 pushes the pressing test component 2 8, and the pressing test component 2 8 moves downward. After the lower connecting rope 1 55 is loosened, the lower spring 1 53 pushes the pressing test component 9, and the pressing test component 9 rises.

[0064] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural modes and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they shall all fall within the scope of protection of the present invention.

Claims

1. A motor housing sealing test device, comprising a fixing frame for supporting and fixing, an upper connecting plate is installed at the upper end of the fixing frame, and a lower connecting plate is installed at the lower end of the fixing frame. It is characterized in that The side wall of the fixing frame is installed with a driving component, and the upper connecting plate and the lower connecting plate are installed with a pulling and pushing component 2 and a pulling and pushing component 1, one end of the pulling and pushing component 2 is connected to the driving component, and one end of the pulling and pushing component 1 is connected to the driving component, and the upper end of the pulling and pushing component 1 and the upper end of the pulling and pushing component 2 are installed with a pressing test component 2, and the lower end of the pulling and pushing component 1 and the lower end of the pulling and pushing component 2 are installed with a pressing test component 1, and the pressing test component 2 and the pressing test component 1 are placed opposite to each other; The second pressing test assembly comprises an upper pressing test plate and an upper extrusion fixing plate, the upper pressing test plate is connected with the upper end of the pulling and pushing assembly one and the upper end of the pulling and pushing assembly two, the upper extrusion fixing plate is arranged at the lower end of the upper pressing test plate, a reset spring one is installed between the upper extrusion fixing plate and the upper pressing test plate, a folding capsule one is installed between the outer side wall of the upper extrusion fixing plate and the outer side wall of the upper pressing test plate, the bottom wall of the upper extrusion fixing plate is provided with an annular groove, a folding capsule two is installed between the upper wall of the annular groove and the upper pressing test plate, a sealed space one is formed between the folding capsule one, the folding capsule two, the upper pressing test plate and the upper extrusion fixing plate, and a sealed space two is formed between the folding capsule two, the upper pressing test plate, the annular groove and the upper extrusion fixing plate; The upper extrusion fixing plate is provided with three vent holes, and the three vent holes are all arranged in the sealed space two. The two opposite side walls of the annular groove are respectively installed with a fixed bag one and a fixed bag two. The two opposite side walls of the annular groove are respectively installed with vent holes one and vent holes two. The upper wall of the annular groove is provided with a ventilation cavity three, and the ventilation cavity three is connected with the sealed space one. The vent hole one connects the fixed bag one and the sealed space one, and the vent hole two connects the fixed bag two and the ventilation cavity three. The upper wall of the annular groove is provided with a rubber layer; A hydraulic rod 1 is installed at the center of the upper extrusion fixed plate, an extrusion plate 1 is installed at the movable end of the hydraulic rod 1, a reset spring 2 is installed on the bottom wall of the extrusion plate 1, an extrusion plate 2 is installed on the lower end of the reset spring 2, a folding capsule 3 is installed between the extrusion plate 1 and the extrusion plate 2, a sealed space 3 is formed between the folding capsule 3, the extrusion plate 1 and the extrusion plate 2, an upper test sealing plate is provided at the lower end of the extrusion plate 2, a folding capsule 4 is installed between the upper test sealing plate and the extrusion plate 2, a sealed space 4 is formed between the folding capsule 4, the extrusion plate 2 and the upper test sealing plate.

2. The motor housing sealing test device according to claim 1, It is characterized in that The inner wall of the extrusion plate 2 is provided with a ventilation cavity 1, the upper wall of the extrusion plate 2 is provided with a ventilation hole 4, and the side wall is provided with a ventilation hole 5. The ventilation hole 4 is arranged in the folding bag 3, the ventilation hole 4 connects the sealed space 3 and the ventilation cavity 1, and the ventilation cavity 1 is connected with the ventilation hole 5.

3. The motor housing sealing test equipment according to claim 2, It is characterized in that A ventilation cavity 2 is provided in the upper test sealing plate, a ventilation hole 6 is provided on the upper wall of the upper test sealing plate, the ventilation hole 6 is provided in a folding bag 4, a sealing bag is provided on the side wall of the upper test sealing plate, the ventilation hole 6 connects the sealing space 4 and the ventilation cavity 2, and the ventilation cavity 2 is connected to the sealing bag.

4. The motor housing sealing test device according to claim 3, It is characterized in that The driving assembly comprises a support plate 1, a support plate 2, a movable frame and a hydraulic rod 2, wherein the support plate 1 and the support plate 2 are respectively arranged on opposite sides of the fixed frame, the fixed frame is provided with a guide rail, the movable frame is movably connected to the guide rail, the fixed end of the hydraulic rod 2 is provided on the fixed frame, the movable end of the hydraulic rod 2 is connected to the side wall of the movable frame, the upper end of the movable frame is provided with an upper tooth condition, the lower end of the movable frame is provided with a lower tooth condition, the upper tooth condition and the lower tooth condition are staggered, a connecting shaft 1 is movably installed on the support plate 1, a connecting shaft 2 is movably installed on the support plate 2, a gear 1 is installed on the connecting shaft 1, a gear 2 is installed on the connecting shaft 2, the lower end of the gear 1 is meshed and connected with the lower tooth condition, and the upper end of the gear 2 is meshed and connected with the upper tooth condition.

5. The motor housing sealing test device according to claim 4, It is characterized in that The pulling and pushing component includes an upper sleeve rod and a lower sleeve rod, the upper sleeve rod is arranged on the upper connecting plate, and the lower sleeve rod is arranged on the lower connecting plate. An upper spring is installed between the upper sleeve rod and the upper wall of the pressing test component, and a lower spring is installed between the lower sleeve rod and the bottom wall of the pressing test component. An upper connecting rope is movably passed through the upper sleeve rod, and a lower connecting rope is movably passed through the lower sleeve rod. One end of the upper connecting rope is wrapped around a connecting shaft, and the other end passes through the upper spring and is connected to the upper wall of the pressing test component. One end of the lower connecting rope is wrapped around a connecting shaft, and the other end passes through the lower spring and is connected to the bottom wall of the pressing test component.

6. The motor housing sealing test device according to claim 5, It is characterized in that The upper wall of the upper test sealing plate on the second press-fit test component and the lower wall of the upper test sealing plate on the first press-fit test component are both provided with pressure sensors.

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