A multifunctional high-voltage motor rotor extraction and maintenance device

Abstract

The present invention belongs to the field of motor maintenance technology, and specifically relates to a multifunctional high-voltage motor rotor extraction and maintenance device, comprising a drive end bracket assembly, a free end bracket assembly, a journal bracket, a movable bracket, and a journal movable bracket. The drive end bracket assembly and the free end bracket assembly are respectively installed at both ends of the motor, and the bottoms are located in the same horizontal plane. The journal movable bracket is provided at one end of the free end bracket assembly to support the motor rotor from below, and the journal bracket is installed at the other end of the free end bracket assembly to support the motor rotor extended from below by horizontal movement of a dummy shaft. In the case of limited maintenance space on site and no use of a crane, the two sides of the motor rotor are respectively fixed to the components between the drive end bracket and the free end, and the rotor is gradually moved slowly from the drive end to the free end to be pulled out, thereby effectively solving the problem of being unable to perform motor rotor extraction and disassembly maintenance on site.

Description

Technical Field

[0001] The invention belongs to the technical field of motor maintenance, and in particular relates to a multifunctional high-voltage motor rotor extraction and maintenance device. Background Art

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Its primary function is to generate driving torque. As a power source for electrical appliances and various machines, it is widely used in various industrial fields and is one of the most widely used electrical equipment. High-voltage motors generally refer to medium-to-large electric motors with voltage levels of 6kV and above. They are generally large in size, weight, and power.

[0003] High-voltage motors require regular preventive maintenance, including rotor removal and disassembly. This involves extensive maintenance, a high workload, and high lifting safety risks. According to research, most factories or workshops in the industry are currently unable to perform rotor removal and maintenance on-site due to limited space and maintenance conditions. Consequently, the motors must be hoisted to a maintenance facility for separate inspection.

[0004] The following problems exist during the rotor removal and disassembly inspection of high-voltage motors:

[0005] 1) It is impossible to perform motor rotor extraction and repair work on site. The motor needs to be hoisted to the maintenance plant or workshop for maintenance, and the efficiency of rotor extraction and disassembly maintenance is low;

[0006] 2) Before hoisting the motor, it is generally necessary to remove the power cables and various cables, anchor bolts, junction boxes and other components. This is a large workload and poses a significant risk of equipment damage and personnel safety.

[0007] 3) There are serious safety hazards such as equipment damage and personal injury during the motor lifting and transportation process;

[0008] 4) The motor requires a lot of manpower, cranes, space and other resources when lifting, resulting in high maintenance costs and low efficiency;

[0009] 5) Currently, the removal and installation of the backrest wheel is required frequently when removing and inserting the rotor, which involves hot work and poses a high risk of equipment damage and personnel burns.

[0010] 6) After the rotor is pulled out for maintenance, it cannot be rotated for maintenance, and comprehensive maintenance of the rotor cannot be carried out. Summary of the Invention

[0011] The purpose of the present invention is to provide a multifunctional high-voltage motor rotor extraction and maintenance device to solve the problem that the current high-voltage motor cannot be disassembled and repaired on site and needs to be transported to a maintenance workshop for maintenance.

[0012] The technical solutions of the present invention are as follows:

[0013] A multifunctional high-voltage motor rotor extraction and maintenance device, comprising a drive-end support assembly, a free-end support assembly, a journal bracket, a movable bracket, and a journal movable bracket. The drive-end support assembly and the free-end support assembly are respectively mounted at both ends of a device to be repaired, i.e., a motor. The bottoms of the drive-end support assembly and the free-end support assembly are located in the same horizontal plane. The journal movable bracket is mounted at one end of the free-end support assembly to support the motor rotor from below. The journal bracket is mounted at the other end of the free-end support assembly to support the motor rotor from below after horizontal movement of the dummy shaft.

[0014] The driving end bracket assembly includes a fixed bracket, a movable bracket arranged above the fixed bracket, and a supporting roller arranged on the movable bracket; the fixed bracket is provided with a linear guide rail A, and a slide A is installed on the linear guide rail A, so that the entire movable bracket can move back and forth along the linear guide rail A; the slide A is provided with supporting rollers, and the position of the supporting rollers can be adjusted left and right; the movable bracket can be adjusted up and down;

[0015] The free end bracket assembly includes a rotor bracket fixed on a horizontal plane, an axle neck bracket lifting mechanism and a rotor disk bracket lifting mechanism installed through the rotor bracket, and a traction pulley that can move on the rotor bracket through sliding fit; a linear guide rail B is installed on the upper surface of the rotor bracket, and the linear guide rail B cooperates with the slide B to enable the traction pulley to move relative to each other.

[0016] Guide rods A are installed on both sides of the upper part of the slide A, and a horizontal position adjustment screw rod A is provided between the two guide rods A. The supporting roller is fixed on the horizontal position adjustment screw rod A, and the left and right adjustment of the supporting roller is achieved by threaded movement of the adjustment nut A installed on the horizontal position adjustment screw rod A; the movable bracket is lifted and lowered by two vertical position adjustment lifting mechanisms A installed below it. The vertical position adjustment lifting mechanism A is arranged on the slide A, and its upper part is connected to the horizontal position adjustment screw rod A.

[0017] A synchronization shaft A is provided between the two vertical position adjustment lifting mechanisms A, and an adjustment handwheel A is provided at the end of each vertical position adjustment lifting mechanism A.

[0018] The bottom of the fixed bracket is provided with a supporting shoe A and an adjusting nut A, and the height adjustment of the driving end bracket assembly is achieved by adjusting the nut A; the lower surface of the fixed bracket is installed with a displacement caster, which can move the driving end bracket.

[0019] A pulley limit pin is provided in the middle portion of the slide A to position the movable bracket during its movement and prevent the movable bracket from slipping.

[0020] The traction pulley includes a slide B, a guide rod B installed on the slide B, a horizontal position adjustment screw installed on the upper end of the guide rod B, and a sliding support block installed on the horizontal position adjustment screw; the motor rotor to be inspected is arranged in the sliding support block, and the left and right adjustment of the sliding support block is the left and right adjustment of the motor rotor.

[0021] The motor rotor to be repaired is installed in the sliding support block by fastening bolts A, and the left and right adjustment function of the sliding support block is achieved by adjusting the adjusting nut D.

[0022] Two vertical position adjustment lifting mechanisms B are installed on the slide B, and the upper parts of the mechanisms are connected to the horizontal position adjustment screw rod B.

[0023] A synchronization shaft B is provided between the two vertical position adjustment lifting mechanisms B, and an adjustment handwheel B is provided at the end of each vertical position adjustment lifting mechanism B.

[0024] A traction reducer is provided on one side of the rotor bracket, which includes a rotatable driving gear driven by a traction drive handwheel. A rack is installed on the inner side of the linear guide rail B on one side of the rotor bracket. The gear is engaged with the rack. After the traction drive handwheel drives the gear to rotate, it drives the traction pulley to move on the rotor bracket.

[0025] The rotor disc rotating bracket lifting mechanism includes two sets of rotor roller elevators installed on the rotor bracket, rotor disc rotating rollers installed above the rotor roller elevators, and rotor disc rotating handwheels installed on the side thereof for driving the rotor roller elevators. The rotor roller elevators are driven by the rotor disc rotating handwheel to adjust the lifting position of the rotor disc rotating rollers.

[0026] A synchronization shaft is provided between the two sets of rotor roller lifters to achieve synchronous adjustment of the two sets of rotor roller lifters.

[0027] The shaft neck bracket lifting mechanism includes two sets of adjustment lifting mechanisms installed on the rotor bracket and a support plate C installed on the two sets of adjustment lifting mechanisms. The adjustment lifting mechanism is provided with an adjustment handwheel A for driving its rotation, and the shaft neck bracket is installed on the support plate C.

[0028] A synchronization shaft is provided between the two sets of adjustment and lifting mechanisms to achieve synchronous adjustment of the two sets of rotor roller lifts.

[0029] The journal bracket includes a support frame installed on the free end bracket assembly, a horizontal position adjustment screw C installed on the support frame through a sliding sleeve and a limit anti-rotation pin, a V-shaped support block A installed on the horizontal position adjustment screw C and threadedly matched, and a pressure plate connected to the V-shaped support block A; the motor rotor is arranged in the V-shaped support block A.

[0030] The movable bracket comprises a supporting plate, a roller mounted on the supporting plate through a roller bracket, and a detachable wedge-shaped supporting block mounted on the supporting plate, and the motor rotor is placed above the detachable wedge-shaped supporting block.

[0031] The shaft neck movable bracket includes a support plate B, a roller B installed on the support plate B through a roller bracket B, a detachable support installed on the support plate B, a height adjustment screw installed through the detachable support, and a V-shaped support block B installed at the upper end of the height adjustment screw, and the motor rotor is placed in the V-shaped groove of the V-shaped support block B.

[0032] The remarkable effects of the present invention are as follows:

[0033] In the case of limited maintenance space on site and no crane available, the drive end bracket and free end bracket are designed, and a dummy shaft is used at the drive end. The two sides of the motor rotor are fixed to the components between the drive end bracket and the free end respectively. The rotor can be slowly moved from the drive end to the free end and pulled out, thus effectively solving the problem of being unable to disassemble and disassemble the motor rotor for maintenance on site.

[0034] Since the height and horizontal direction of the drive end bracket and the free end bracket are adjustable, it is suitable for disassembly and maintenance of high-voltage motors of various specifications and has a wide range of applications.

[0035] Due to the design of the drive end bracket and free end bracket, when a dummy shaft is used at the drive end, the motor can be disassembled and repaired at the motor work site. Therefore, there is no need to lift the motor to the maintenance workshop, which greatly reduces the safety risks of equipment damage and personal injury caused by lifting the motor.

[0036] Due to the design of the drive end bracket and free end bracket, when a dummy shaft is used at the drive end, the motor can be disassembled and repaired at the motor work site. Therefore, there is no need to remove the power cable and various cables, anchor bolts, junction box and other components, which greatly reduces the auxiliary work required for motor disassembly and repair.

[0037] Due to the design of the drive end bracket and the free end bracket, and the use of a dummy shaft at the drive end, the motor can be disassembled and repaired at the motor work site. Therefore, there is no need to lift the motor, and there is no need to occupy various resources such as cranes and sites, which reduces labor costs, low maintenance costs and high efficiency.

[0038] The drive-end bracket is designed to be used with a dummy shaft, so the rotor can be removed without removing the backrest wheel. This solves the current problem of frequent removal and installation of the motor backrest wheel when removing the rotor. It does not involve hot work and effectively reduces the risk of equipment damage and personnel burns.

[0039] Due to the design of the drive end bracket and the free end bracket, and the use of a dummy shaft at the drive end, the motor can be disassembled and repaired at the motor work site. The rotor can be reinstalled after repair without lifting the motor or removing other motor auxiliary components. Therefore, it can effectively solve the current problems of long disassembly and repair period and low maintenance efficiency of high-voltage motors, and shorten the motor disassembly and repair period. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of a multifunctional high-voltage motor rotor extraction and maintenance device;

[0041] Figure 2a This is the front view of the drive end bracket assembly;

[0042] Figure 2b This is a side view of the drive end bracket assembly;

[0043] Figure 2c This is a top view of the drive end bracket assembly;

[0044] Figure 3a It is a side view of the free end bracket assembly;

[0045] Figure 3b It is a top view of the free end bracket assembly;

[0046] Figure 3c It is a front view of the free end bracket assembly;

[0047] Figure 4 It is a side view of the rotor disc bracket lifting mechanism;

[0048] Figure 5a It is the side view of the journal bracket;

[0049] Figure 5b This is the front view of the journal bracket;

[0050] Figure 6 It is a side view of the journal bracket lifting mechanism;

[0051] Figure 7a It is a side view of the movable bracket;

[0052] Figure 7b It is a top view of the movable bracket;

[0053] Figure 8a It is the side view of the journal movable bracket;

[0054] Figure 8b This is a top view of the journal movable bracket;

[0055] In the figure: 1. Drive end bracket assembly; 2. Free end bracket assembly; 3. Axle neck bracket; 4. Movable bracket; 5. Axle neck movable bracket; 6. Fixed bracket; 7. Movable bracket; 8. Support roller; 9. Pulley limit pin; 10. Displacement caster; 11. Horizontal position adjustment screw A; 12. Synchronous shaft A; 13. Guide rod A; 14. Vertical position adjustment lifting mechanism A; 15. Slide A; 16. Linear guide A; 17. Support shoe A; 18. Adjustment nut A; 19. Adjustment and lifting mechanism; 20. Axle neck bracket lifting mechanism; 21. Rotor disc rotating bracket lifting mechanism; 22. Traction pulley; 23. Guide rod B; 24. Support shoe B; 25. Transfer caster A; 26. Rotor bracket; 27. Vertical position adjustment and lifting mechanism B; 28. Slide B; 29. Synchronous shaft B; 30. Sliding support block; 31. Horizontal position adjustment screw B; 32. Traction drive handwheel; 33. Traction reducer; 34. Rack; 35. Gear; 36. Linear guide B; 37. Adjustment handwheel A; 38. Rotor disk rotation handwheel; 39. Rotor disk rotation roller; 40. Rotor roller lifter; 41. Motor rotor; 42. Motor stator; 43. Backrest wheel; 44. Dummy shaft; 45. Fastening bolt A; 46. Support frame; 47. Horizontal position adjustment screw C; 48. Pressure plate; 49. Fastening bolt B; 50. V-shaped support block A; 51. Limit anti-rotation pin; 52. Sliding sleeve; 53. Roller bracket A; 54. Roller A; 55. Support plate A; 5 6. Removable wedge-shaped support block; 57. Adjusting bolt; 58. Roller B; 59. Roller bracket B; 60. Removable support; 61. V-shaped support block B; 62. Height adjustment screw; 63. Height adjustment bolt; 64. Support plate B; 65. Adjusting nut A; 66. Adjusting handwheel A; 67. Adjusting handwheel B; 68. Hydraulic support leg; 69. Hydraulic cylinder; 70. Transfer caster B; 71. Adjusting nut C; 72. Adjusting nut D; 73. Synchronous shaft C; 74. Support plate C. DETAILED DESCRIPTION

[0056] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0057] like Figure 1 As shown, a multifunctional high-voltage motor rotor extraction and maintenance device includes a drive end bracket assembly 1, a free end bracket assembly 2, a journal bracket 3, a movable bracket 4, and a journal movable bracket 5.

[0058] The driving end bracket assembly 1 and the free end bracket assembly 2 are respectively installed at both ends of the device to be repaired, that is, the motor. The bottoms of the driving end bracket assembly 1 and the free end bracket assembly 2 are located at the same horizontal plane.

[0059] At this time, it is necessary to ensure that the motor to be repaired only includes the motor rotor 41, the motor stator 42 outside the motor rotor 41, the coupling 43 installed at the driving end of the motor rotor 41, and the dummy shaft 44 connected to the coupling 43 and capable of axial expansion and contraction. The motor is fixed by the motor base.

[0060] like Figure 1 As shown, the journal movable bracket 5 is mounted on the end of the free end bracket assembly 2, and the journal movable bracket 5 supports one end of the motor rotor 41 from below. The journal bracket 3 is mounted on the other end of the free end bracket assembly 2, and the movable bracket 4 is mounted on the free end bracket assembly 2, supporting the motor rotor 41 from below, which is extended horizontally by the dummy shaft 44.

[0061] The driving end bracket assembly 19 is connected and fixed to the driving end of the motor, and the free end bracket assembly 2 is connected and fixed to the free end of the motor.

[0062] like Figure 2a 、 Figure 2b and Figure 2c The driving end bracket assembly 1 shown includes a fixed bracket 6 mounted on a horizontal surface, a movable bracket 7 mounted above the fixed bracket 6, and a supporting roller 8 mounted on the movable bracket 7;

[0063] A supporting shoe A17 and an adjusting nut A18 are installed at the bottom of the fixed bracket 6. The height of the driving end bracket assembly 1 can be adjusted by adjusting the nut A18. In addition, a displacement caster 10 is installed on the lower surface of the fixed bracket 6 to move the driving end bracket 1 and adjust its position during installation and use, so that the driving end bracket 1 is adapted to the motor to be repaired.

[0064] A linear guide rail A16 is installed on the upper surface of the fixed bracket 6, and a slide A15 is installed on the linear guide rail A16, so that the entire movable bracket 7 can move back and forth along the linear guide rail A16.

[0065] Guide rods A13 are installed on both sides of the upper part of the slide A15. A horizontal position adjustment screw rod A11 is installed between the two guide rods A13. The supporting roller 8 is fixed on the horizontal position adjustment screw rod A11. The left and right adjustment of the supporting roller 8 is achieved by threading the adjustment nut A65 installed on the horizontal position adjustment screw rod A11.

[0066] Two vertical position adjustment mechanisms A14 are mounted on slide A15. Their upper portions are connected to horizontal position adjustment screws A11. These mechanisms are standard commercial components. Adjusting the movable bracket 7 is accomplished by adjusting their built-in adjustment handles A66. A synchronization shaft A12 is mounted between these two mechanisms, ensuring synchronous operation of both.

[0067] A pulley limit pin 9 is installed in the middle part of the slide A15 to position the movable bracket 7 during its movement and prevent the movable bracket 7 from slipping.

[0068] like Figure 3a 、 Figure 3b and Figure 3c As shown, the free end bracket assembly 2 includes a rotor bracket 26 fixed on a horizontal plane, a journal bracket lifting mechanism 20 and a rotor disc bracket lifting mechanism 21 installed through the rotor bracket 26, and a traction pulley 22 that can move on the rotor bracket 26 through sliding fit;

[0069] The traction pulley 22 comprises a slide B28, a guide rod B23 mounted on the slide B28, a horizontal position adjustment screw 31 mounted on the upper end of the guide rod B23, and a sliding support block 30 mounted on the horizontal position adjustment screw 31. The motor rotor 41 to be inspected is mounted within the sliding support block 30 via fastening bolts A45. The sliding support block 30, and thus the motor rotor 41, can be adjusted left and right by adjusting the adjustment nut D72.

[0070] A linear guide rail B36 is installed on the upper surface of the rotor bracket 26. The linear guide rail B36 cooperates with the slide B28 to enable the traction pulley 22 to move relative to each other.

[0071] Two vertical position adjustment mechanisms B27 are mounted on slide B28. Their upper portions are connected to horizontal position adjustment screws B31. These mechanisms are standard commercial components. Adjusting the built-in adjustment handwheels B67 allows for the raising and lowering of movable bracket 7. A synchronization shaft B29 is mounted between the two vertical position adjustment mechanisms B27, ensuring synchronized operation of both mechanisms.

[0072] The traction reducer 33 is a standard part available on the market. The gear 35 is driven to rotate by the traction drive handwheel 32. A rack 34 is installed on the inner side of the linear guide rail B36 on one side of the rotor bracket 26. The gear 35 and the rack teeth are staggered. After the traction drive handwheel 32 drives the gear 35 to rotate, the traction pulley 22 is moved on the rotor bracket 26, thereby realizing the traction, extraction and re-entry functions of the motor rotor.

[0073] like Figure 4 As shown, the rotor disk rotating bracket lifting mechanism 21 includes a rotor roller elevator 40 installed on the rotor bracket 26, a rotor disk rotating roller 39 installed above the rotor roller elevator 40, and a rotor disk rotating handwheel 38 installed on the side of the rotor roller elevator 40 for driving the rotor roller elevator 40.

[0074] After the rotor is fully pulled out, the rotor roller lifter 40 is driven by the rotor disk hand wheel 38 to adjust the lifting position of the rotor disk roller 39 to support the motor rotor 41. At this time, if the motor rotor 41 is manually rotated, its rotation maintenance function can be realized.

[0075] like Figure 6 The illustrated journal bracket lifting mechanism 20 includes two sets of adjustment and lifting mechanisms 19 mounted on the rotor support 26, a synchronization shaft C73 between the two adjustment and lifting mechanisms 19, and a support plate C74 mounted on the two adjustment and lifting mechanisms 19. The adjustment handwheel A37 is connected to the two adjustment and lifting mechanisms 19 respectively, and the two adjustment and lifting mechanisms 19 are synchronized and adjusted through the synchronization shaft C73.

[0076] The journal bracket 3 is mounted on the support plate C74 , and its height can be adjusted by adjusting the lifting mechanism 19 .

[0077] like Figure 5a and Figure 5b The journal bracket 3 shown includes a support frame 46 mounted on the free end bracket assembly 2, a horizontal position adjustment screw C47 mounted on the support frame 46 through a sliding sleeve 52 and a limit anti-rotation pin 51, a V-shaped support block A50 mounted on the horizontal position adjustment screw C47 and threadedly matched, and a pressure plate 48 connected to the V-shaped support block A50 through a fastening bolt B49; the above-mentioned motor rotor 41 is mounted in the V-shaped support block A50 through the pressure plate 48 and the fastening bolt B49.

[0078] like Figure 7a and Figure 7b The movable bracket 4 shown includes a support plate 55, a roller 54 mounted on the support plate 55 through a roller bracket 53, and a detachable wedge-shaped support block 56 mounted on the support plate 55. The above-mentioned motor rotor 41 is placed above the detachable wedge-shaped support block 56.

[0079] Roller brackets A53 are mounted on either side of support plate A55, and rollers A54 are mounted within these brackets. Movable bracket 4 slides on linear guide rails B36 on rotor bracket 26 via rollers A54. Two removable wedge-shaped support blocks 56 are mounted on support plate A55. These are adjusted using two adjusting bolts 57 mounted on roller bracket A53 to fit the motor rotor 41, positioning it above the removable wedge-shaped support blocks 56.

[0080] like Figure 8a and Figure 8bAs shown, the journal movable bracket 5 includes a support plate B64, a roller B58 installed on the support plate B64 through a roller bracket B59, a detachable support 60 installed on the support plate B64, a height adjustment screw 62 installed through the detachable support 60, and a V-shaped support block B61 installed on the upper end of the height adjustment screw 62. The upper surface of the above-mentioned V-shaped support block B61 is processed with a V-shaped groove, and the above-mentioned motor rotor 41 is placed at the V-shaped groove.

[0081] To use, follow the steps below:

[0082] 1. Confirm that the high-voltage motor in the working position has the conditions for maintenance and isolation;

[0083] 2. The device is mainly divided into five parts: the drive end bracket assembly 1, the free end bracket assembly 2, the journal bracket 3, the movable bracket 4, and the journal movable bracket 5;

[0084] 3. The motor's end covers, bearings, couplings, etc. have been removed, and the motor rotor 41 is placed in the motor stator 42;

[0085] 4. Install the drive end bracket assembly 1 on the motor base through the drive end adapter rod 19 and adjust its height and horizontal position;

[0086] 5. Support the motor rotor drive end through the dummy shaft 19;

[0087] 6. Move the free-end bracket assembly 2 to the free-end side of the motor, adjust the overall balance of the free-end bracket assembly 2 by adjusting the hydraulic support legs 68, and then use the support shoe B24 to achieve load-bearing fixation by adjusting the nut C71 to support the entire bracket. Install the bracket on the motor base through the free-end adapter rod 37, and adjust its height and horizontal position;

[0088] 7. Move the traction pulley 22 close to the motor side, adjust the pulley height, install the motor rotor shaft neck part on the sliding support block 30, and secure it;

[0089] 8. Adjust the drive end bracket assembly 1 and the free end bracket assembly 2 so that the motor rotor 41 is placed in the center of the motor stator 42 and a gap of at least 1 mm is maintained between the motor stator 42 and the motor rotor 41;

[0090] 9. Use the traction pulley 22 to slowly move the motor rotor 41 toward the free end;

[0091] 10. When the motor rotor 41 moves to about 500 mm, install the journal movable bracket 5 on the linear guide rail 36 of the free end bracket assembly 2 and adjust its height so that it supports the motor rotor 41;

[0092] 11. Continue pulling the motor rotor 41. When the core of the motor rotor 41 is completely located on the linear guide rail 36, install movable brackets 4 at both ends of the motor rotor core and adjust their heights so that they support the motor rotor.

[0093] 12. Continue pulling the motor rotor 41. When the shaft neck portion of the motor rotor driving end is directly above the shaft neck bracket lifting mechanism 20, install the shaft neck bracket 3 to formally secure the motor rotor 41.

[0094] 13. Simultaneously adjust the axle neck bracket lifting mechanism 20 and the lifting mechanism on the traction pulley 22 to raise the motor rotor and remove the movable bracket 4;

[0095] 14. Simultaneously adjust the journal bracket lifting mechanism 20 and the lifting mechanism on the traction pulley 22 so that the motor rotor falls onto the rotor disc bracket lifting mechanism 21, and the rotor disc rollers 39 support the motor rotor;

[0096] 15. Maintenance personnel shall perform various maintenance work on the motor stator and rotor on site as needed. If the motor rotor needs to be moved away from the motor working position, the free end bracket assembly 2 can be disconnected from the motor, and the height of the supporting shoe B24 can be adjusted so that the entire bracket and the motor rotor are supported by the transfer casters A25 as a whole, and then transported to the maintenance area;

[0097] 16. After the motor maintenance work is completed, reinstall the motor rotor and remove this device in the reverse order of the above steps.

Claims

1. A multifunctional high-voltage motor rotor extraction and maintenance device, characterized by: The invention comprises a drive end support assembly (1), a free end support assembly (2), a journal bracket (3), a movable bracket (4), and a journal movable bracket (5); the drive end support assembly (1) and the free end support assembly (2) are respectively mounted on two ends of a device to be repaired, i.e., a motor; the bottoms of the drive end support assembly (1) and the free end support assembly (2) are located on the same horizontal plane; the journal movable bracket (5) is arranged at one end on the free end support assembly (2) and supports the motor rotor (41) from below; the journal bracket (3) is mounted at the other end on the free end support assembly (2) and supports the motor rotor (41) extending horizontally through a dummy shaft (44) from below; The driving end bracket assembly (1) includes a fixed bracket (6), a movable bracket (7) arranged above the fixed bracket (6), and a supporting roller (8) arranged on the movable bracket (7); a linear guide rail A (16) is provided on the fixed bracket (6), and a slide A (15) is installed on the linear guide rail A (16), so that the entire movable bracket (7) can move back and forth along the linear guide rail A (16); the slide A (15) is provided with a supporting roller (8), and the position of the supporting roller (8) can be adjusted left and right; the movable bracket (7) can be adjusted up and down; The free end bracket assembly (2) includes a rotor bracket (26) fixed on a horizontal plane, a journal bracket lifting mechanism (20) and a rotor disc bracket lifting mechanism (21) installed through the rotor bracket (26), and a traction pulley (22) capable of moving on the rotor bracket (26) through sliding cooperation; a linear guide rail B (36) is installed on the upper surface of the rotor bracket (26), and the linear guide rail B (36) cooperates with the slide B (28) to enable the traction pulley (22) to move relatively.

2. A multifunctional high-voltage motor rotor extraction and repair device according to claim 1, characterized in that: Guide rods A (13) are respectively installed on both sides of the upper part of the slide A (15), and a horizontal position adjustment screw rod A (11) is provided between the two guide rods A (13). The support roller (8) is fixed on the horizontal position adjustment screw rod A (11). The support roller (8) is adjusted left and right by threading the adjustment nut A (65) installed on the horizontal position adjustment screw rod A (11); the movable bracket (7) is lifted and lowered by two vertical position adjustment lifting mechanisms A (14) installed below it. The vertical position adjustment lifting mechanism A (14) is provided on the slide A (15), and its upper part is connected to the horizontal position adjustment screw rod A (11).

3. A multifunctional high-voltage motor rotor extraction and repair device according to claim 2, characterized in that: A synchronization shaft A (12) is provided between the two vertical position adjustment and lifting mechanisms A (14), and an adjustment hand wheel A (66) is provided at the end of each vertical position adjustment and lifting mechanism A (14).

4. A multifunctional high-voltage motor rotor extraction and repair device as claimed in claim 2, characterized in that: The bottom of the fixed bracket (6) is provided with a supporting shoe A (17) and an adjusting nut A (18), and the height of the driving end bracket assembly (1) is adjusted by adjusting the nut A (18); the lower surface of the fixed bracket (6) is installed with a displacement caster (10), which can move the driving end bracket assembly (1).

5. The multifunctional high-voltage motor rotor extraction and repair device according to claim 2, characterized in that: A pulley limiting pin (9) is provided in the middle of the slide A (15) to position the movable bracket (7) during the movement of the movable bracket (7) and prevent the movable bracket (7) from slipping off.

6. The multifunctional high-voltage motor rotor extraction and repair device according to claim 1, characterized in that: The traction pulley (22) includes a slide B (28), a guide rod B (23) mounted on the slide B (28), a horizontal position adjustment screw (31) mounted on the upper end of the guide rod B (23), and a sliding support block (30) mounted on the horizontal position adjustment screw (31); the motor rotor (41) to be repaired is arranged in the sliding support block (30), and the left and right adjustment of the sliding support block (30) is the left and right adjustment of the motor rotor (41).

7. A multifunctional high-voltage motor rotor extraction and repair device according to claim 6, characterized in that: The motor rotor (41) to be repaired is installed in the sliding support block (30) by fastening bolts A (45), and the left and right adjustment function of the sliding support block (30) is achieved by adjusting the adjustment nut D (72).

8. The multifunctional high-voltage motor rotor extraction and repair device according to claim 6, characterized in that: Two vertical position adjustment lifting mechanisms B (27) are installed on the slide B (28), and the upper parts of the vertical position adjustment lifting mechanisms B (27) are connected to the horizontal position adjustment screw rod B (31).

9. The multifunctional high-voltage motor rotor extraction and repair device according to claim 8, characterized in that: A synchronization shaft B (29) is provided between the two vertical position adjustment and lifting mechanisms B (27), and an adjustment hand wheel B (67) is provided at the end of each vertical position adjustment and lifting mechanism B (27).

10. The multifunctional high-voltage motor rotor extraction and repair device according to claim 6, characterized in that: A traction reducer (33) is provided on one side of the rotor bracket (26), which includes a rotatable driving gear (35) driven by a traction driving hand wheel (32). A rack (34) is installed on the inner side of the linear guide rail B (36) on one side of the rotor bracket (26). The gear (35) is engaged with the rack (34). After the traction driving hand wheel (32) drives the gear (35) to rotate, the traction pulley (22) is driven to move on the rotor bracket (26).

11. The multifunctional high-voltage motor rotor extraction and repair device according to claim 1, characterized in that: The rotor disc rotating bracket lifting mechanism (21) comprises two sets of rotor roller elevators (40) mounted on the rotor bracket (26), rotor disc rotating rollers (39) mounted above the rotor roller elevators (40), and a rotor disc rotating hand wheel (38) mounted on the side of the rotor roller elevators (40) for driving the rotor roller elevators (40). The rotor disc rotating hand wheel (38) drives the rotor roller elevators (40) to move, thereby adjusting the lifting position of the rotor disc rotating rollers (39).

12. The multifunctional high-voltage motor rotor extraction and repair device according to claim 11, characterized in that: A synchronization shaft is provided between the two sets of rotor roller lifts (40) to achieve synchronous adjustment of the two sets of rotor roller lifts (40).

13. The multifunctional high-voltage motor rotor extraction and repair device according to claim 1, characterized in that: The shaft neck bracket lifting mechanism (20) includes two sets of adjustment lifting mechanisms (19) installed on the rotor bracket (26) and a support plate C (74) installed on the two sets of adjustment lifting mechanisms (19). The adjustment lifting mechanism (19) is provided with an adjustment hand wheel A (37) for driving the rotation thereof, and the shaft neck bracket (3) is installed on the support plate C (74).

14. The multifunctional high-voltage motor rotor extraction and repair device according to claim 13, characterized in that: A synchronization shaft is provided between the two sets of adjustment and lifting mechanisms (19), so as to achieve synchronous adjustment of the two sets of rotor roller lifters (40).

15. The multifunctional high-voltage motor rotor extraction and repair device according to claim 1, characterized in that: The journal bracket (3) includes a support frame (46) mounted on the free end bracket assembly (2), a horizontal position adjustment screw C (47) mounted on the support frame (46) through a sliding sleeve (52) and a limit anti-rotation pin (51), a V-shaped support block A (50) mounted on the horizontal position adjustment screw C (47) and threadedly engaged, and a pressure plate (48) connected to the V-shaped support block A (50); the motor rotor (41) is arranged in the V-shaped support block A (50).

16. The multifunctional high-voltage motor rotor extraction and repair device according to claim 1, characterized in that: The movable bracket (4) includes a support plate (55), a roller (54) mounted on the support plate (55) via a roller bracket (53), and a detachable wedge-shaped support block (56) mounted on the support plate (55), and the motor rotor (41) is placed above the detachable wedge-shaped support block (56).

17. The multifunctional high-voltage motor rotor extraction and repair device according to claim 1, characterized in that: The journal movable bracket (5) includes a support plate B (64), a roller B (58) mounted on the support plate B (64) through a roller bracket B (59), a detachable support (60) mounted on the support plate B (64), a height adjustment screw (62) mounted through the detachable support (60), and a V-shaped support block B (61) mounted on the upper end of the height adjustment screw (62), and the motor rotor (41) is placed in the V-shaped groove of the V-shaped support block B (61).

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