A three-phase explosion-proof motor structure and fault detection equipment thereof

Abstract

The present invention discloses a three-phase explosion-proof motor structure and a fault detection device thereof, including a motor body, a lifting ring fixed on the motor body, a junction box fixedly connected to the motor body, a wire tube fixedly connected to one side of the junction box, a symmetrically distributed motor seat fixedly provided below the motor body, a support plate fixedly provided on one side of the motor seat, one end of the support plate fixedly connected to the motor body, a through hole provided on the motor seat, and a fault detection device including a machine platform, a locking assembly fixed on the machine platform, a detection assembly fixed on the machine platform, a mounting part fixed on the machine platform, and a fixing part fixed on the machine platform. The fault detection device of the present invention moves and fixes the three-phase explosion-proof motor to the locking assembly, improves the positioning accuracy of the three-phase explosion-proof motor, the metal rod can be moved to adjust the detection position, the detection area of ​​the three-phase explosion-proof motor is wide, the detection accuracy is high, and the detection does not require the removal of the three-phase explosion-proof motor, and the detection operation is simple and fast.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle motor detection, and in particular to a three-phase explosion-proof motor structure and a fault detection device thereof. Background Art

[0002] New energy vehicles use new energy drive modes such as plug-in hybrid drive, pure electric drive and fuel cell drive. Among them, three-phase explosion-proof motors are used in new energy drives as the driving source of new energy vehicles. When producing and repairing three-phase explosion-proof motors, corresponding testing procedures need to be completed.

[0003] In the prior art, the name disclosed in the application number: CN201721887455.5 is: Automobile Motor Casing and Automobile Motor, and the IPC classification number is: H02K5 / 04, which includes a motor housing and at least one positioning boss protruding from the inner wall of the motor housing; the side end of the positioning boss protruding from the inner wall of the motor housing is suitable for abutting against the side end of the magnetic tile attached to the inner wall of the motor housing, and the shape of the end face of the positioning boss abutting against the side end of the magnetic tile is adapted to match the shape of the side end of the magnetic tile.

[0004] As disclosed in the application number: CN202020067658.5, the name is: A detection tool and detection device for an automotive motor, the IPC classification number is: G01R1 / 04, which includes a base and a frame, the frame is fixed to the base through an adjustment structure, the frame includes two load-bearing plates arranged opposite to each other, and an adapter plate and a mounting plate are arranged on the top surface of the load-bearing plates. The adapter plate is fixed to the load-bearing plate through a translation structure to adjust the distance between the two adapter plates, the mounting plate is fixed to the adapter plate through a lifting structure, and the motor is fixed between the mounting plates.

[0005] However, the mounting plate mentioned in the prior art fixes the motor, but has a poor effect on the motor detection and fixing, and the positioning effect of the motor detection is poor, which is not conducive to stably fixing the motor in the detection position, and easily reduces the accuracy of automobile motor detection. Therefore, it is necessary to design a three-phase explosion-proof motor structure and its fault detection equipment. Summary of the invention

[0006] The object of the present invention is to provide a three-phase explosion-proof motor structure and a fault detection device thereof to solve the problems in the prior art.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A three-phase explosion-proof motor structure comprises a motor body, a lifting ring is fixed on the motor body, a junction box is fixedly connected to the motor body, a wire tube is fixedly connected to one side of the junction box, a symmetrically distributed motor seat is fixedly provided below the motor body, a support plate is fixedly provided on one side of the motor seat, one end of the support plate is fixedly connected to the motor body, a through hole is provided on the motor seat, a cone block is fixed on the motor seat, a through groove is provided on one side of the cone block, and a threaded hole is fixed in the through groove.

[0009] A fault detection device for a three-phase explosion-proof motor structure comprises a machine platform, on which a locking component for fixing the three-phase explosion-proof motor is fixed, a detection component is fixed on the machine platform, a mounting piece is fixed on the machine platform, and a fixing piece is fixed on the machine platform.

[0010] A vertical plate is fixed on the machine platform, a mounting groove is provided on the vertical plate, a cylinder 1 is fixed on one side of the vertical plate, a through groove is provided on the mounting groove, a cylinder 2 is fixed on the bottom of the machine platform, a top plate 1 is fixed on the output end of the cylinder 2, a bottom plate is fixed under the machine platform, and a guide rod 1 is fixed on one side of the bottom plate.

[0011] A lead screw is rotatably arranged on one side of the base plate, and a driving motor 1 for connecting the lead screw is fixed on the other side. A shifting rod is slidably arranged on the guide rod 1, and the shifting rod is threadedly connected with the lead screw.

[0012] Furthermore, the locking assembly includes a fixed plate, a side plate is fixedly connected to the fixed plate, a cylinder three is fixedly provided on one side of the side plate, an L-shaped plate is fixed to the output end of the cylinder three, a side rod is fixed to one side of the L-shaped plate, the side rod cooperates with the through groove, guide rings are fixed on both sides of the L-shaped plate, and a pressure rod is slidably provided inside the guide ring.

[0013] One end of the pressure rod is provided with an inclined groove, and the other end is fixedly connected to a spring. One end of the spring is fixedly connected to the top of the L-shaped plate. The pressure rod abuts against the inclined surface of the cone block to limit the position. A limiting plate is fixed on the fixed plate. An array of circular holes is provided on the limiting plate, and a detection rod is slidably arranged in the circular hole.

[0014] Furthermore, a driving block is provided below the limit plate, a plurality of detection rods are fixed to the driving block, a spring 2 for connecting the fixed plate is fixed on the driving block, a rectangular groove is provided on the driving block, and a triangular block is fixed in the rectangular groove.

[0015] The two triangular blocks are respectively located at the upper and lower sides of the rectangular groove. An open groove is arranged on the triangular block. The lead screw and the guide rod are passed through the open groove. The shifting rod is slidably connected with the inclined surface of the triangular block.

[0016] Furthermore, the mounting member includes a bracket, an arc guide rail is fixed on the bracket, an arc groove is provided on the bracket, an annular ring is slidably provided on the arc guide rail, a limit groove is provided in an array outside the annular ring, a driven ring is fixed on the inside of the annular ring, and a cam groove is provided inside the driven ring.

[0017] Furthermore, a top frame is fixed on the bracket, a cylinder four is fixed on the top of the top frame, the output end of the cylinder four is fixedly connected to a limit block, the limit block cooperates with the limit groove, a cleaning brush is fixed on one side of the driven ring, and a connecting rod is fixed in an array on the other side.

[0018] Furthermore, the fixing part includes a mounting seat, a fixing groove is provided in the mounting seat, a back plate is fixed on the mounting seat, a circular hole is provided on the back plate, a shaft sleeve coaxial with the circular hole is rotatably provided on one side of the back plate, a plurality of fan blades are fixed on the shaft sleeve, the ends of the plurality of fan blades are fixedly connected with connecting rings, the ends of the connecting rod are fixedly connected to the connecting ring, and a moving rod is slidably provided in the circular hole.

[0019] Furthermore, a spring three is fixed in the shaft sleeve, one end of the spring three is fixedly connected to the back plate, and the other end is fixedly connected to the moving rod. The spring three is sleeved on the moving rod, one end of the spring three is fixed with a top plate two, and the other end is fixed with a circular plate. The top plate two abuts against one end of the three-phase explosion-proof motor, and an active rod is fixed to one side of the moving rod, and one end of the active rod is slidably connected to the cam groove.

[0020] Furthermore, the detection component includes a stand, which is fixed on a vertical plate, on which a symmetrically distributed arc plate is fixed, on one side of the arc plate an electric slide is fixed, on which a mounting block slides, and on which a cylinder five is fixed.

[0021] Furthermore, a U-shaped block is fixedly connected to the output end of the cylinder five, a mounting shaft is rotatably provided inside the U-shaped block, a driving motor 2 for connecting to drive the mounting shaft is fixed on one side of the U-shaped block, a symmetrically distributed sliding rod is slidably provided on the mounting shaft, a rocker rod is rotatably provided at one end of the sliding rod, a metal rod is fixed at the other end, and a guide rod 2 is fixed on the mounting shaft.

[0022] A double-headed screw is rotatably provided on the installation shaft, and a driving motor 3 for connecting and driving the double-headed screw is fixed on the installation shaft. A symmetrically distributed moving block is slidably provided on the guide rod 2, and the two moving blocks are symmetrically threadedly connected to the double-headed screw, and the moving blocks are rotatably connected to the rocker arm.

[0023] Beneficial effects of the present invention:

[0024] 1. The three-phase explosion-proof motor structure of the present invention is designed with a motor seat, which is conducive to stably installing the motor on the automobile frame and is convenient for the installation operation of the three-phase explosion-proof motor. At the same time, a wire tube for fixing the cable is designed on the junction box to protect the wiring;

[0025] 2. The fault detection device of the present invention improves the accuracy of the three-phase explosion-proof motor feeding by stably feeding the three-phase explosion-proof motor, thereby ensuring the stable feeding of the three-phase explosion-proof motor. At the same time, the three-phase explosion-proof motor moves to the locking component, and the three-phase explosion-proof motor is locked by the locking component, thereby improving the positioning accuracy of the three-phase explosion-proof motor;

[0026] 3. The fault detection equipment of the present invention can remove dust and clean the surface of the motor by the fan blades and cleaning brushes on the feed drive mounting parts and the fixing parts before the actual detection, thereby reducing the interference on the surface of the motor and ensuring the accuracy of the detection process. At the same time, the metal rod can be moved to adjust the detection position, and the detection area of ​​the three-phase explosion-proof motor is wide and the detection accuracy is high. At the same time, there is no need to dismantle the three-phase explosion-proof motor for detection, and the detection operation is simple and fast.

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the structure of the three-phase explosion-proof motor of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the fault detection device of the present invention;

[0030] Figure 3 is a schematic cross-sectional structure diagram of a fault detection device of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the machine of the present invention;

[0032] Figure 5 It is a schematic diagram of the bottom structure of the machine of the present invention;

[0033] Figure 6 It is a schematic structural diagram of the locking assembly of the present invention;

[0034] Figure 7 is a schematic cross-sectional structure diagram of the locking assembly of the present invention;

[0035] Figure 8 It is a partial structural schematic diagram of the fault detection device of the present invention;

[0036] Fig. 9 It is a partial structural schematic diagram of the fault detection device of the present invention;

[0037] Fig.10 It is a schematic diagram of the structure of the detection component of the present invention;

[0038] Fig.11 The present invention Fig.10 The enlarged structural diagram at A in the middle;

[0039] Fig.12 It is a schematic diagram of the detection circuit structure of the present invention.

[0040] Description of reference numerals:

[0041] 1. Machine; 2. Locking assembly; 3. Mounting piece; 4. Fixing piece; 5. Detection assembly; 6. Motor body; 10. Push rod; 11. Vertical plate; 12. Cylinder 1; 13. Top plate 1; 14. Mounting slot; 15. Through slot; 16. Cylinder 2; 17. Bottom plate; 18. Guide rod 1; 19. Lead screw; 21. Fixing plate; 22. Side plate; 23. Cylinder 3; 24. L-shaped plate; 25. Press rod; 26. Spring Spring 1; 27, inclined groove; 28, limit plate; 29, drive block; 31, bracket; 32, arc guide rail; 33, annular ring; 34, limit groove; 35, driven ring; 36, cam groove; 37, cleaning brush; 38, connecting rod; 40, active rod; 41, mounting seat; 42, fixed groove; 43, back plate; 44, sleeve; 45, spring 3; 46, fan blade; 47, connecting ring; 48, moving rod; 4 9. Top plate 2; 51. Stand; 52. Curved plate; 53. Electric slide; 54. Mounting block; 55. Cylinder 5; 56. U-shaped block; 57. Mounting shaft; 58. Rocker; 59. Metal rod; 60. Lifting ring; 61. Motor seat; 62. Cone block; 63. Through slot; 64. Threaded hole; 65. Support plate; 66. Through hole; 67. Junction box; 68. Wire tube; 190. Drive motor 1; 241. Side rod; 281, round hole; 291, detection rod; 292, spring 2; 293, rectangular slot; 294, open slot; 295, triangular block; 311, arc slot; 312, top frame; 313, cylinder 4; 314, limit block; 381, round plate; 570, drive motor 2; 571, slide rod; 572, double-headed screw; 573, moving block; 574, guide rod 2; 575, drive motor 3. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] A three-phase explosion-proof motor structure and fault detection equipment thereof. The three-phase explosion-proof motor is one of the drive motors used in new energy and electric vehicles. In actual production or maintenance, it is necessary to perform fault detection on the three-phase explosion-proof motor. The fault detection equipment is one of the fast and accurate detection equipment and is a special fault detection equipment for the three-phase explosion-proof motor.

[0044] A three-phase explosion-proof motor structure, such as Figure 1As shown, the three-phase explosion-proof motor structure includes a motor body 6, on which a lifting ring 60 is fixedly installed. The lifting ring 60 is used for lifting when the three-phase explosion-proof motor structure is installed. A junction box 67 is fixedly connected to the motor body 6, and a wire tube 68 is fixedly connected to one side of the junction box 67. The cables connected to the motor body 6 pass through the wire tube 68 and are connected to the junction box 67. The wire tube 68 protects the cables.

[0045] A symmetrically distributed motor seat 61 is fixedly provided below the motor body 6, a support plate 65 is fixedly provided on one side of the motor seat 61, one end of the support plate 65 is fixedly connected to the motor body 6, a through hole 66 is opened on the motor seat 61, and a bolt passes through the through hole 66 to connect and fix with the automobile chassis, a cone block 62 is fixedly provided on the motor seat 61, a through groove 63 is opened on one side of the cone block 62, a threaded hole 64 is fixedly provided in the through groove 63, and is fixedly connected to the threaded hole 64 by a bolt installed on the automobile chassis to fix the motor body 6.

[0046] A fault detection device for a three-phase explosion-proof motor structure, such as Figure 2 As shown, the fault detection device includes a machine platform 1, on which a locking assembly 2 is fixedly installed for fixing the three-phase explosion-proof motor, and a detection assembly 5 is fixedly installed on the machine platform 1 and above the locking assembly 2, and a mounting member 3 is fixedly provided on the machine platform 1 and on one side of the locking assembly 2.

[0047] A fixing member 4 is provided on a side of the mounting member 3 away from the detection assembly 5 , and the fixing member 4 is fastened to the platform 1 .

[0048] like Figure 4 , Figure 5 As shown, a vertical plate 11 is fixedly provided on the machine 1, an L-shaped material conveying channel is formed in the vertical plate 11, a mounting groove 14 is provided on the vertical plate 11, and the mounting groove 14 is used to fix and install the locking component 2, a cylinder 12 is fixedly provided on one side of the vertical plate 11, and the cylinder 12 is located on one side of the L-shaped material conveying channel to transfer the three-phase explosion-proof motor of the material conveying channel, and a through groove 15 is provided on the mounting groove 14.

[0049] A top plate 13 that can be raised and lowered is installed on the machine 1. A cylinder 16 is fixedly provided at the bottom of the machine 1. The output end of the cylinder 16 is fixedly connected to the top plate 13 to control the up and down movement of the top plate 13, and can lift the three-phase explosion-proof motor located in the feeding channel. A bottom plate 17 is fixedly provided below the machine 1 and below the through groove 15. A guide rod 18 is fixedly provided on one side of the bottom plate 17. A lead screw 19 is rotatably provided on the bottom plate 17 and located on one side of the guide rod 18.

[0050] A driving motor 190 is fixedly provided on the other side of the base plate 17, and the output end of the driving motor 190 is fixedly connected to one end of the lead screw 19. A shift rod 10 is slidably provided on the guide rod 18, and the shift rod 10 is threadedly connected to the lead screw 19. Under the drive of the lead screw 19, the shift rod 10 moves horizontally.

[0051] like Figure 6 , Figure 7 As shown, the locking assembly 2 includes a fixing plate 21, which is fastened in the mounting groove 14, and symmetrically distributed side plates 22 are fastened on the fixing plate 21, and a cylinder three 23 is fixedly installed on one side of the side plate 22, and an L-shaped plate 24 is fixedly installed on the output end of the cylinder three 23, and a side rod 241 is fixedly installed on one side of the L-shaped plate 24, and the side rod 241 cooperates with the through groove 63 to fix the three-phase explosion-proof motor located on the fixing plate 21, and the top of the L-shaped plate 24 is fixed above the cone block 62 to limit the cone block 62.

[0052] Guide rings are fixedly provided on both sides of the L-shaped plate 24, and a pressure rod 25 is slidably provided in the guide ring. An inclined groove 27 is provided at one end of the pressure rod 25, and a spring 26 is fixedly connected to the other end. The spring 26 is sleeved on the pressure rod 25, and one end of the spring 26 is fixedly connected to the top of the L-shaped plate 24. The pressure rod 25 is located at the inclined surfaces on both sides of the cone block 62 to horizontally limit the cone block 62, and the motor seat 61 of the three-phase explosion-proof motor is locked through the two L-shaped plates 24.

[0053] A limit plate 28 is fastened to the fixing plate 21. When the three-phase explosion-proof motor is located on the fixing plate 21, the limit plate 28 is located between the two motor seats 61 to fix the inner side of the motor seat 61 and position the three-phase explosion-proof motor. An array of circular holes 281 are provided on the limit plate 28, and a detection rod 291 is slidably provided in the circular hole 281.

[0054] A vertically movable driving block 29 is arranged below the limiting plate 28, and a plurality of detection rods 291 are fixedly connected to the top of the driving block 29. A second spring 292 is fixedly installed on the driving block 29. The second spring 292 is fixedly connected to the bottom of the fixed plate 21 and is used to connect the driving block 29 to the bottom of the fixed plate 21. A rectangular groove 293 is provided on the driving block 29, and a triangular block 295 is fixedly provided in the rectangular groove 293. The two triangular blocks 295 are respectively located on the upper and lower sides of the rectangular groove 293, and an opening groove 294 is provided on the triangular block 295.

[0055] The lead screw 19 and the guide rod 18 are penetrated in the open groove 294, and the lever 10 is slidably located in the rectangular groove 293. The lever 10 abuts against the inclined surface of the triangular block 295, which will lift the triangular block 295 to control the upward movement of the driving block 29, which will compress the spring 292, and the detection rod 291 will impact the bottom of the three-phase explosion-proof motor to detect the anti-vibration effect of the three-phase explosion-proof motor and the shell safety of the three-phase explosion-proof motor.

[0056] Then, after the lever 10 is between the two triangular blocks 295, the spring 292 releases its elastic force, the drive block 29 moves downward, and then the lever 10 moves in the opposite direction and enters the rectangular groove 293 from the other side of the drive block 29 again, driving the drive block 29 again, thereby achieving repeated detection.

[0057] like Figure 3 , Figure 8 , Fig. 9 As shown, the mounting member 3 includes a bracket 31, a curved guide rail 32 is fixedly provided on the top of the bracket 31, a curved groove 311 is opened on the top of the bracket 31, the curved groove 311 is located on the curved guide rail 32, an annular ring 33 is slidably provided on the curved guide rail 32, an array-distributed limiting grooves 34 are opened on the outer side of the annular ring 33, a driven ring 35 is fixedly provided on the inner side of the annular ring 33, and a cam groove 36 is opened in the driven ring 35.

[0058] A top frame 312 is fixedly provided on the bracket 31, and a cylinder four 313 is fixedly installed on the top of the top frame 312. The output end of the cylinder four 313 is fixedly connected to a limit block 314. The limit block 314 cooperates with the limit groove 34 to limit and fix the rotation of the driven ring 35. When no detection is required, the driven ring 35 can be locked. A cleaning brush 37 is fixedly provided on one side of the driven ring 35, and an array-distributed connecting rod 38 is fixedly provided on the other side.

[0059] The fixing member 4 includes a mounting seat 41, a fixing groove 42 is provided in the mounting seat 41, a back plate 43 is fastened on the mounting seat 41 and on one side of the fixing groove 42, a circular hole is provided on the back plate 43, a shaft sleeve 44 is rotatably provided on one side of the back plate 43, a plurality of fan blades 46 are fixedly provided on the shaft sleeve 44, and the ends of the plurality of fan blades 46 are fixedly connected with connecting rings 47 for connecting and fixing the outer sides of the fan blades 46.

[0060] The end of the connecting rod 38 is fixedly connected to the connecting ring 47. The connecting ring 47 and the driven ring 35 rotate synchronously through the transmission of the connecting rod 38. The shaft sleeve 44 is coaxially arranged with the circular hole. A moving rod 48 is slidably arranged in the circular hole. A spring three 45 is fixedly installed in the shaft sleeve 44. One end of the spring three 45 is fixedly connected to the back plate 43, and the other end is fixedly connected to the moving rod 48. The spring three 45 is sleeved on the moving rod 48.

[0061] A top plate 2 49 is fixedly mounted on one end of the spring 3 45, and a circular plate 381 is fixedly mounted on the other end. The circular plate 381 is used to limit the moving rod 48. The top plate 2 49 abuts against one end of the three-phase explosion-proof motor. The cylinder 12 pushes the three-phase explosion-proof motor to move, and the three-phase explosion-proof motor pushes the top plate 2 49 to translate. An active rod 40 is fixedly mounted on one side of the moving rod 48, and one end of the active rod 40 is slidably connected to the cam groove 36.

[0062] When the moving rod 48 translates with the top plate 49, the active rod 40 is used to slide in the cam groove 36 to drive the driven ring 35 to rotate continuously, and then drive the cleaning brush 37 to clean the three-phase explosion-proof motor housing, and at the same time drive the fan blades 46 to rotate to blow the cleaned dust. A collection device can be added to recover the dust, which will not be elaborated here.

[0063] like Fig.10 , Fig.11 As shown, the detection component 5 includes a stand 51, which is fixed on the stand plate 11, and symmetrically distributed arc plates 52 are fixed on the stand 51, an electric slide 53 is fixed on one side of the arc plate 52, a mounting block 54 is slidably provided on the electric slide 53, and the mounting block 54 moves between the two arc plates 52 under the drive of the electric slide 53, a cylinder 55 is fixed on the mounting block 54, and a U-shaped block 56 is fixedly connected to the output end of the cylinder 55, and a mounting shaft 57 is rotatably provided inside the U-shaped block 56.

[0064] In this embodiment, the electric slide 53 adopts the PT-GD308 from Padiwei.

[0065] A driving motor 570 is fixedly provided on one side of the U-shaped block 56, and the output end of the driving motor 570 is fixedly connected to the end of the mounting shaft 57. A symmetrically distributed sliding rod 571 is slidably provided on the mounting shaft 57. A rocker rod 58 is rotatably provided on one end of the sliding rod 571, and a metal rod 59 is fixedly provided on the other end. A guide rod 574 is fixedly provided on the mounting shaft 57, and a double-headed screw 572 is provided on one side of the guide rod 574. The double-headed screw 572 is rotatably provided on the mounting shaft 57.

[0066] A driving motor 3 575 is fixedly provided on the mounting shaft 57, and the output end of the driving motor 3 575 is fixedly connected to one end of the double-headed lead screw 572. A symmetrically distributed moving block 573 is slidably provided on the guide rod 2 574. The two moving blocks 573 are symmetrically threadedly connected to the double-headed lead screw 572, and the side surfaces of the moving blocks 573 are rotatably connected to the rocker arm 58.

[0067] like Fig.12As shown, both ends of the metal rod 59 are fixedly connected with wires, the fault detection device includes a detection circuit, the detection circuit includes a resistor and an ammeter connected in series, and multiple metal rods 59 can be installed on the detection component 5. The multiple metal rods 59 are connected in parallel in the detection circuit. A single-pole multi-throw switch is set in the detection circuit to meet the detection requirements of multiple metal rods 59.

[0068] In this embodiment, cylinder one 12, cylinder two 16, cylinder three 23, cylinder four 313 and cylinder five 55 use QGA80*200-G.

[0069] Here’s how it works:

[0070] It is transported to the top of the fixed plate 21 by a three-phase explosion-proof motor, and the two L-shaped plates 24 are controlled to move toward each other by cylinder three 23 to fix the three-phase explosion-proof motor. Then the limit plate 28 is located under the two motor seats 61, and then the driving block 29 is controlled to move up and down by the translation lever 10, and multiple detection rods 291 are controlled to test the three-phase explosion-proof motor.

[0071] Then, by moving the metal rod 59 to the outside of any position of the three-phase explosion-proof motor, adjusting the distance between the metal rod 59 and the installation shaft 57, and then rotating the installation shaft 57, the metal rod 59 cuts the magnetic field of the three-phase explosion-proof motor. At this time, current will be generated on the metal rod 59, and the current is detected by the ammeter in the detection circuit to detect the magnetic field strength at multiple positions of the three-phase explosion-proof motor, so as to determine whether the three-phase explosion-proof motor has a fault. The three-phase explosion-proof motor can be quickly and accurately detected without dismantling the three-phase explosion-proof motor.

[0072] Before the actual detection, the fault detection equipment uses the fan blades and cleaning brushes on the feed drive mounting parts and the fixing parts to remove dust from the motor surface, reduce interference on the motor surface, ensure the accuracy of the detection process, and adjust the detection position of the metal rod to conduct a comprehensive detection of the three-phase explosion-proof motor with high detection accuracy. At the same time, the detection does not require the removal of the three-phase explosion-proof motor, and the detection operation is simple and fast.

[0073] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A fault detection device for a three-phase explosion-proof motor structure, the three-phase explosion-proof motor structure comprising a motor body (6), characterized in that: A lifting ring (60) is fixed on the motor body (6), a terminal box (67) is fixedly connected to the motor body (6), a wire tube (68) is fixedly connected to one side of the terminal box (67), a symmetrically distributed motor seat (61) is fixed below the motor body (6), a support plate (65) is fixed to one side of the motor seat (61), one end of the support plate (65) is fixedly connected to the motor body (6), a through hole (66) is provided on the motor seat (61), a cone block (62) is fixed on the motor seat (61), a through groove (63) is provided on one side of the cone block (62), and a threaded hole (64) is fixed in the through groove (63); The fault detection device comprises a machine platform (1), wherein a locking component (2) for fixing a three-phase explosion-proof motor is fixed on the machine platform (1), a detection component (5) is fixed on the machine platform (1), a mounting component (3) is fixed on the machine platform (1), and a fixing component (4) is fixed on the machine platform (1); The machine platform (1) is fixed with a vertical plate (11), the vertical plate (11) is provided with a mounting groove (14), a cylinder 1 (12) is fixed on one side of the vertical plate (11), a through groove (15) is provided on the mounting groove (14), a cylinder 2 (16) is fixed at the bottom of the machine platform (1), a top plate 1 (13) is fixed at the output end of the cylinder 2 (16), a bottom plate (17) is fixed below the machine platform (1), and a guide rod 1 (18) is fixed on one side of the bottom plate (17); A lead screw (19) is rotatably provided on one side of the base plate (17), and a driving motor (190) for connecting the lead screw (19) is fixed on the other side; a lever (10) is slidably provided on the guide rod (18), and the lever (10) is threadably connected to the lead screw (19); The detection assembly (5) comprises a stand (51), the stand (51) being fixed on a stand plate (11), a symmetrically distributed arc-shaped plate (52) being fixed on the stand (51), an electric slide (53) being fixed on one side of the arc-shaped plate (52), a mounting block (54) sliding on the electric slide (53), and a cylinder (55) being fixed on the mounting block (54); The output end of the cylinder five (55) is fixedly connected with a U-shaped block (56), a mounting shaft (57) is rotatably provided in the U-shaped block (56), a second driving motor (570) for connecting and driving the mounting shaft (57) is fixed on one side of the U-shaped block (56), symmetrically distributed sliding rods (571) are slidably provided on the mounting shaft (57), a swing rod (58) is rotatably provided at one end of the sliding rod (571), and a metal rod (59) is fixed at the other end, and a second guide rod (574) is fixed on the mounting shaft (57); A double-ended lead screw (572) is rotatably provided on the installation shaft (57), a third driving motor (575) for connecting and driving the double-ended lead screw (572) is fixed on the installation shaft (57), symmetrically distributed moving blocks (573) are slidably provided on the second guide rod (574), the two moving blocks (573) are symmetrically threadedly connected to the double-ended lead screw (572), and the moving blocks (573) are rotatably connected to the swing rod (58).

2. A three-phase explosion-proof motor structure fault detection device according to claim 1, characterized in that: The locking assembly (2) comprises a fixing plate (21), a side plate (22) is fixedly connected to the fixing plate (21), a cylinder three (23) is fixedly provided on one side of the side plate (22), an L-shaped plate (24) is fixedly provided at the output end of the cylinder three (23), a side rod (241) is fixedly provided on one side of the L-shaped plate (24), the side rod (241) cooperates with the through groove (63), guide rings are fixedly provided on both sides of the L-shaped plate (24), and a pressure rod (25) is slidably provided inside the guide ring; One end of the pressure rod (25) is provided with an inclined groove (27), and the other end is fixedly connected to a spring (26). One end of the spring (26) is fixedly connected to the top of the L-shaped plate (24). The pressure rod (25) abuts against the inclined surface of the cone block (62) to limit the position. A limiting plate (28) is fixed on the fixed plate (21). An array of circular holes (281) is provided on the limiting plate (28), and a detection rod (291) is slidably provided in the circular hole (281).

3. A fault detection device for a three-phase explosion-proof motor structure according to claim 2, characterized in that: A driving block (29) is provided below the limit plate (28), a plurality of detection rods (291) are fixedly connected to the driving block (29), a second spring (292) for connecting to the fixing plate (21) is fixed on the driving block (29), a rectangular groove (293) is provided on the driving block (29), and a triangular block (295) is fixed in the rectangular groove (293); The two triangular blocks (295) are respectively located at the upper and lower sides of the rectangular groove (293); an open groove (294) is provided on the triangular block (295); a lead screw (19) and a guide rod (18) pass through the open groove (294); and the lever (10) is slidably connected to the inclined surface of the triangular block (295).

4. A fault detection device for a three-phase explosion-proof motor structure according to claim 1, characterized in that: The mounting member (3) comprises a bracket (31), an arc-shaped guide rail (32) is fixed on the bracket (31), an arc-shaped groove (311) is provided on the bracket (31), an annular ring (33) is slidably provided on the arc-shaped guide rail (32), an array of limit grooves (34) are provided on the outer side of the annular ring (33), a driven ring (35) is fixed on the inner side of the annular ring (33), and a cam groove (36) is provided in the driven ring (35).

5. A fault detection device for a three-phase explosion-proof motor structure according to claim 4, characterized in that: A top frame (312) is fixedly provided on the bracket (31), a cylinder four (313) is fixedly provided on the top of the top frame (312), a limit block (314) is fixedly connected to the output end of the cylinder four (313), the limit block (314) cooperates with the limit groove (34), a cleaning brush (37) is fixedly provided on one side of the driven ring (35), and a connecting rod (38) is fixedly provided in an array on the other side.

6. A three-phase explosion-proof motor structure fault detection device according to claim 5, characterized in that: The fixing member (4) comprises a mounting seat (41), a fixing groove (42) is provided in the mounting seat (41), a back plate (43) is fixed on the mounting seat (41), a circular hole is provided on the back plate (43), a shaft sleeve (44) coaxial with the circular hole is rotatably provided on one side of the back plate (43), a plurality of fan blades (46) are fixed on the shaft sleeve (44), a connecting ring (47) is fixed at the ends of the plurality of fan blades (46), an end of the connecting rod (38) is fixed on the connecting ring (47), and a moving rod (48) is slidably provided in the circular hole.

7. A three-phase explosion-proof motor structure fault detection device according to claim 6, characterized in that: A spring three (45) is fixed in the shaft sleeve (44), one end of the spring three (45) is fixedly connected to the back plate (43), and the other end is fixedly connected to the moving rod (48). The spring three (45) is sleeved on the moving rod (48), one end of the spring three (45) is fixed to a top plate two (49), and the other end is fixed to a circular plate (381), the top plate two (49) is in contact with one end of the three-phase explosion-proof motor, an active rod (40) is fixed to one side of the moving rod (48), and one end of the active rod (40) is slidably connected to the cam groove (36).

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