Rotor lifting device for motor assembly

Abstract

The invention relates to the technical field of rotor lifting devices, and discloses a rotor lifting device for motor assembly, which comprises a rotor body, a base is mounted below the rotor body, a fixing plate is connected to the surface of the base through a connecting assembly, two symmetrically arranged sliding rails are fixedly connected to the surface of the fixing plate, and a connecting plate is slidably connected to the surface of the fixing plate. Two sliding grooves corresponding to the sliding rails in position are formed in the bottom face of the connecting plate, a supporting assembly is connected to the surface of the connecting plate, and the rotor body is located on the supporting assembly. According to the rotor lifting device for motor assembly, through cooperation of the positioning plates and the arc-shaped grooves and external expansion of the positioning plates, accurate alignment between a rotor body and a motor shell is achieved, accurate assembly of the rotor body is achieved, the alignment accuracy between a rotor and a stator is effectively improved, the performance of a motor is improved, and the service life of the motor is prolonged; collision between the rotor and the stator or the motor shell is avoided, and the balance of the rotor is prevented from being affected or the rotor is prevented from being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of rotor lifting devices, in particular to a rotor lifting device for motor assembly. Background Art

[0002] With the rapid development of modern industrial technology, the motor, as a key component of driving and controlling equipment, is crucial to the stability of its performance and quality for the entire equipment system. As the core link in the motor manufacturing process, motor assembly not only involves complex process flows, but also requires high-precision assembly technology and equipment to ensure the stability and reliability of motor performance. In the motor assembly process, the installation and positioning of the rotor is a crucial step. As the rotating part of the motor, the rotor and the stator together constitute the electromagnetic system of the motor, and its installation accuracy directly affects the performance of the motor. However, since the rotor itself has a certain weight and needs to be precisely matched with other components during the assembly process, the installation and positioning of the rotor has always been one of the difficulties in the motor assembly process.

[0003] As in the prior art, the patent publication number CN114535953A discloses a rotor lifting device for motor assembly, including a lifting frame, an outer tube is installed on the inner wall of the bottom of the lifting frame by bolts, a first motor is installed on the inner wall of the bottom of the outer tube by bolts, a threaded rod is connected to the end of the first motor by a coupling, a top piece is threadedly connected to one side of the outer wall of the threaded rod, a plug rod is welded to both sides of the outer wall of the top piece, a lifting piece is welded to the outer wall of the top of the top piece, a lifting plate is arranged on the top outer wall of the lifting piece, a motor is installed on one side of the lifting plate by bolts, and a main gear is welded to the output shaft of the motor, a secondary gear is movably connected to one side of the inner wall of the lifting plate, and limited sliding grooves are provided on both sides of the inner wall of the outer tube. In the above technical solution, after the threaded rod rotates, the lifting piece is driven by the top piece, and the lifting piece can lift the lifting plate upward, which is convenient for lifting the motor rotor on the lifting side plate, and can make the motor more convenient when assembling without manual operation.

[0004] Although the rotor lifting device in the above patent solves the problem that the rotor cannot be flexibly adjusted in position, causing inconvenience in rotor assembly, the existing rotor lifting device has certain defects when used; when the existing rotor lifting device installs the rotor into the motor housing, the conventional alignment method will affect the alignment accuracy between the rotor and the stator, which has a direct impact on the performance of the motor. During the process of assembling the rotor into the stator, inaccurate alignment may also cause a collision between the rotor and the stator or the motor housing, which may affect the balance of the rotor and may even cause damage to the rotor in severe cases. In summary, the existing rotor lifting device has obvious defects in aligning the rotor and the stator, which not only affects the performance of the motor, but may also cause equipment damage and safety hazards. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a rotor lifting device for motor assembly to solve the problems raised in the background art and enable the rotor to be accurately aligned during assembly.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotor lifting device for motor assembly, comprising a rotor body, a base is installed below the rotor body, a fixed plate is connected to the surface of the base through a connecting assembly, two symmetrically arranged slide rails are fixedly connected to the surface of the fixed plate, a connecting plate is slidably connected to the surface of the fixed plate, two slide grooves corresponding to the positions of the slide rails are opened on the bottom surface of the connecting plate, a supporting assembly is connected to the surface of the connecting plate, the rotor body is located on the supporting assembly, one end of the rotating shaft of the rotor body is slidably connected to a fixed pipe, a side of the fixed pipe away from the rotor body is fixedly connected to a connecting pipe, a side of the connecting pipe away from the fixed pipe is fixedly connected to a fixed disk, an outer wall of the connecting pipe is rotatably connected to a rotating pipe, a side of the rotating pipe close to the fixed disk is fixedly connected to a connecting disk, the connecting disk is fitted with the fixed disk, a plurality of arc grooves are clamped on the surface of the connecting disk, a moving rod is slidably connected in each arc groove, a positioning rod is fixedly connected to the side of each moving rod close to the fixed disk, a plurality of moving grooves corresponding to the positions of the positioning rods are opened on the surface of the fixed disk, one end of the positioning rod located outside the fixed disk is fixedly connected to a positioning plate, and the fixed pipe and the fixed plate are connected by a fixing assembly.

[0007] Furthermore, the support assembly includes a support frame, a slider, a connecting rod, a fixed column and a support tube. The support frame includes two support rods and a support plate. The bottom surface of the support plate is fixedly connected to two symmetrically arranged support rods. The support frame is set in two, one of which is fixedly connected to the side of the connecting plate surface close to the positioning plate, and the bottoms of the two support rods of the other support frame are fixedly connected to the slider. The surface of the connecting plate is provided with two sliding grooves corresponding to the positions of the two sliders. The surface of the connecting plate is slidably connected to the connecting rod, the bottom surfaces of both ends of the connecting rod are fixedly connected to the slider, the slider is slidably connected to the sliding groove, the middle part of the connecting rod is fixedly connected to the fixed column, the top of the fixed column is connected to the support tube through a lifting assembly, the rotating shaft of the rotor body is slidably connected to the support tube, and the outer wall of the rotor body fits the surface of the support plate.

[0008] Furthermore, the lifting assembly includes a clamping block, a threaded rod, a fixed ring, a movable ring, a rotating ring and a connecting block. A lifting groove is provided in the fixed column, and a clamping block is slidably connected in the lifting groove. A threaded rod is fixedly connected to the surface of the clamping block, and the top of the threaded rod is penetrated through the surface of the fixed column. A fixed ring is fixedly connected to the top surface of the fixed column, a movable ring is slidably connected to the surface of the fixed ring, a rotating ring is fixedly connected to the bottom surface of the movable ring, and a rotating groove corresponding to the position of the rotating ring is provided on the surface of the fixed ring. A connecting block is fixedly connected to the outer wall of the support tube away from the rotor body, the top of the threaded rod is fixedly connected to the bottom surface of the connecting block, the threaded rod is threadedly connected to the inner wall of the movable ring, and the outer wall of the movable ring is provided with anti-slip grooves.

[0009] Furthermore, the fixed assembly includes a limit plate, a rotating sleeve, a rotating rod, a screw, a limit block, a square tube, a connecting column and a moving block. The fixed plate is fixedly connected to one side of the fixed tube with two limit plates, a rotating sleeve is rotatably connected between the two limit plates, rotating rods are fixedly connected on both sides of the rotating sleeve, the rotating rod is rotatably connected to the limit plate, one end of the rotating rod close to the connecting plate is fixedly connected with a screw, the outer wall of the screw is threadedly connected to the limit block, one side of the limit block is fitted with one side of the limit plate, the rotating sleeve is slidably connected with a square tube, the outer wall of the fixed tube is fixedly connected with a connecting column, the connecting column is slidably connected to the inner wall of the square tube, the bottom end of the connecting column is fixedly connected with two symmetrically arranged moving blocks, and two telescopic grooves corresponding to the positions of the moving blocks are provided on the surface of the square tube.

[0010] Furthermore, the connecting component includes two scissor-type lifting units, a fixed rod, a fixed block, a limit rod, a baffle and a handle, each scissor-type lifting unit includes two positioning blocks, a support arm, a connecting arm, a sliding block and two sliding rods, the base surface and one end of the bottom surface of the fixed plate are fixedly connected to two symmetrically arranged positioning blocks, the two positioning blocks located on the base surface are rotatably connected to the support arm, the two positioning blocks located on the bottom surface of the fixed plate are rotatably connected to the connecting arm, the middle part of each support arm is rotatably connected to the middle part of the connecting arm on the same side, each support arm and the end of the connecting arm away from the positioning block are fixedly connected to the sliding block, the base The surface and the bottom surface of the fixed plate are fixedly connected to two symmetrically arranged sliding rods, the sliding blocks connected on the two support arms are respectively slidably connected to the sliding rods on the bottom surface of the fixed plate, the sliding blocks connected on the two connecting arms are respectively slidably connected to the sliding rods on the surface of the base, a fixed rod is fixedly connected between the sliding blocks connected on the two connecting arms, a fixed block is fixedly connected to the middle part of the fixed rod, a baffle is fixedly connected to the middle part of the base, one end of the limit rod is rotatably connected to the baffle, the other end of the limit rod is rotatably connected to a side of the base away from the positioning block, the middle part of the limit rod is threadedly connected to the fixed block, and the end of the limit rod away from the baffle is fixedly connected to a handle.

[0011] Furthermore, a slot is provided on the bottom surface of the connecting block, the top end of the threaded rod is slidably connected to the slot, a bolt is rotatably connected to one side of the connecting block, and the bolt is threadedly connected to one end of the threaded rod located in the slot.

[0012] Furthermore, the support plate is an arc-shaped plate, and a non-slip pad is fixedly connected to the surface of the support plate.

[0013] Furthermore, a buffer pad is fixedly connected to the surface of the positioning plate.

[0014] Furthermore, a plurality of anti-slip strips are fixedly connected to one side of the limiting block close to the limiting plate, and a plurality of anti-slip grooves are provided on the outer wall of the limiting block.

[0015] Furthermore, a handle is fixedly connected to the outer wall of the rotating tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1) This type of rotor lifting device for motor assembly realizes precise alignment between the rotor body and the motor housing by means of the cooperation between the positioning plate and the arc groove and the outward expansion of the positioning plate, and precisely assembles the rotor body. Compared with the existing assembly method, it effectively improves the alignment accuracy between the rotor and the stator, improves the performance and service life of the motor, avoids collision between the rotor and the stator or the motor housing, and avoids the balance of the rotor being affected or the rotor being damaged; 2) Through the mutual cooperation of the lifting components, connecting components, supporting components, fixing components, etc. in the device, it is possible to assemble rotor bodies of different sizes and motor housings of different heights, thereby improving the overall practicality and applicability of the rotor lifting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of another form of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the support assembly of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the support frame, the sliding block and the anti-skid pad of the present invention; Figure 5 It is a schematic diagram of the three-dimensional split structure of the lifting assembly of the present invention; Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the fixed ring, the movable ring and the rotating ring of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the support tube and the connection block of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the positioning plate, the fixing plate and the fixing assembly of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the rotating sleeve, the rotating rod, the screw rod and the limiting block of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the handle, the fixing tube, the connecting tube and the positioning plate of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the handle, the rotating tube and the connecting plate of the present invention; Fig.12 It is a three-dimensional structural schematic diagram of the moving rod, the positioning rod, the positioning plate and the buffer pad of the present invention; Fig.13 It is a three-dimensional structural schematic diagram of the base, the fixing plate and the connecting assembly of the present invention; Fig.14 It is a schematic diagram of a three-dimensional structure of another form of the connection assembly of the present invention; Fig.15 It is a three-dimensional structural schematic diagram of the scissor-type lifting unit, the fixing rod and the fixing block of the present invention; Fig.16 It is a three-dimensional structural schematic diagram of the base, limiting rod, handle, baffle and positioning block of the present invention.

[0018] In the figure: 1, rotor body; 2, base; 3, fixed plate; 4, slide rail; 5, connecting plate; 6, slide groove; 7, support frame; 71, support rod; 72, support plate; 8, slider; 9, connecting rod; 10, fixed column; 11, support tube; 12, fixed tube; 13, connecting tube; 14, fixed plate; 15, rotating tube; 16, connecting plate; 17, arc groove; 18, moving rod; 19, positioning rod; 20, positioning plate; 21, moving groove; 22, lifting groove; 23, clamping block; 24, threaded rod; 25, fixing ring; 26, rotating groove; 2 7. Moving ring; 28. Rotating ring; 29. ​​Connecting block; 30. Slot; 31. Bolt; 32. Buffer pad; 33. Limiting plate; 34. Rotating sleeve; 35. Rotating rod; 36. Screw; 37. Limiting block; 38. Square tube; 39. Connecting column; 40. Moving block; 41. Telescopic slot; 42. Positioning block; 43. Support arm; 44. Connecting arm; 45. Sliding block; 46. Fixed rod; 47. Fixed block; 48. Limiting rod; 49. Baffle; 50. Handle; 51. Anti-slip pad; 52. Sliding slot; 53. Sliding rod; 54. Handle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0020] See also Figure 1-Figure 16A rotor lifting device for motor assembly includes a rotor body 1, a base 2 is installed below the rotor body 1, a fixed plate 3 is connected to the surface of the base 2 through a connecting assembly, two symmetrically arranged slide rails 4 are fixedly connected to the surface of the fixed plate 3, a connecting plate 5 is slidably connected to the surface of the fixed plate 3, two slide grooves 6 corresponding to the positions of the slide rails 4 are opened on the bottom surface of the connecting plate 5, a supporting assembly is connected to the surface of the connecting plate 5, the rotor body 1 is located on the supporting assembly, one end of the rotating shaft of the rotor body 1 is slidably connected to a fixed pipe 12, a side of the fixed pipe 12 away from the rotor body 1 is fixedly connected to a connecting pipe 13, and a side of the connecting pipe 13 away from the fixed pipe 12 is fixedly connected There is a fixed disk 14, and the outer wall of the connecting tube 13 is rotatably connected to a rotating tube 15, and the rotating tube 15 is fixedly connected to a connecting disk 16 on the side close to the fixed disk 14, and the connecting disk 16 fits with the fixed disk 14. A plurality of arc grooves 17 are provided on the surface of the connecting disk 16, and a moving rod 18 is slidably connected in each arc groove 17. A positioning rod 19 is fixedly connected to the side of each moving rod 18 close to the fixed disk 14, and a plurality of moving grooves 21 corresponding to the positions of the positioning rods 19 are provided on the surface of the fixed disk 14, and a positioning plate 20 is fixedly connected to one end of the positioning rod 19 located outside the fixed disk 14, and the fixed tube 12 is connected to the fixed plate 3 through a fixing assembly.

[0021] As a preferred technical solution of the present invention, the support assembly includes a support frame 7, a slider 8, a connecting rod 9, a fixed column 10 and a support tube 11. The support frame 7 includes two support rods 71 ​​and a support plate 72. The bottom surface of the support plate 72 is fixedly connected to two symmetrically arranged support rods 71. The support frame 7 is set in two, one of which is fixedly connected to the side of the surface of the connecting plate 5 close to the positioning plate 20, and the bottoms of the two support rods 71 ​​of the other support frame 7 are fixedly connected to the slider 8. The surface of the connecting plate 5 is provided with two sliding grooves 52 corresponding to the positions of the two sliders 8. The surface of the connecting plate 5 is slidably connected with a connecting rod 9, and the bottom surfaces of both ends of the connecting rod 9 are also fixedly connected with the slider 8. The slider 8 is slidably connected to the sliding groove 52. The middle part of the connecting rod 9 is fixedly connected with a fixed column 10, and the top of the fixed column 10 is connected to the support tube 11 through a lifting assembly. The rotating shaft of the rotor body 1 is slidably connected to the support tube 11, and the outer wall of the rotor body 1 fits the surface of the support plate 72.

[0022] As a preferred technical solution of the present invention, the lifting assembly includes a clamping block 23, a threaded rod 24, a fixed ring 25, a movable ring 27, a rotating ring 28 and a connecting block 29. A lifting groove 22 is provided in the fixed column 10, and a clamping block 23 is slidably connected in the lifting groove 22. A threaded rod 24 is fixedly connected to the surface of the clamping block 23, and the top of the threaded rod 24 is penetrated through the surface of the fixed column 10. A fixed ring 25 is fixedly connected to the top surface of the fixed column 10, and a movable ring 27 is slidably connected to the surface of the fixed ring 25. A rotating ring 28 is fixedly connected to the bottom surface of the movable ring 27, and a rotating groove 26 corresponding to the position of the rotating ring 28 is provided on the surface of the fixed ring 25. A connecting block 29 is fixedly connected to the outer wall of the support tube 11 away from the rotor body 1, and the top of the threaded rod 24 is fixedly connected to the bottom surface of the connecting block 29, and the threaded rod 24 is threadedly connected to the inner wall of the movable ring 27, and the outer wall of the movable ring 27 is provided with anti-slip grooves.

[0023] As a preferred technical solution of the present invention, the fixed component includes a limit plate 33, a rotating sleeve 34, a rotating rod 35, a screw 36, a limit block 37, a square tube 38, a connecting column 39 and a moving block 40. The fixed plate 3 is fixedly connected to one side of the fixed tube 12 with two limit plates 33, and a rotating sleeve 34 is rotatably connected between the two limit plates 33. The rotating sleeve 34 is fixedly connected to both sides of the rotating sleeve 34. The rotating rod 35 is rotatably connected to the limit plate 33. One end of the rotating rod 35 close to the connecting plate 5 is fixedly connected to the screw 36. The outer wall of the screw 36 is threadedly connected to the limit block 37. One side of the limit block 37 is fitted with one side of the limit plate 33. The square tube 38 is slidably connected in the rotating sleeve 34. The outer wall of the fixed tube 12 is fixedly connected to the connecting column 39. The connecting column 39 is slidably connected to the inner wall of the square tube 38. The bottom end of the connecting column 39 is fixedly connected to two symmetrically arranged moving blocks 40. The surface of the square tube 38 is provided with two telescopic grooves 41 corresponding to the positions of the moving blocks 40.

[0024] As a preferred technical solution of the present invention, the connecting component includes two scissor-type lifting units, a fixed rod 46, a fixed block 47, a limit rod 48, a baffle 49 and a handle 50, each scissor-type lifting unit includes two positioning blocks 42, a support arm 43, a connecting arm 44, a sliding block 45 and two sliding rods 53, the surface of the base 2 and one end of the bottom surface of the fixed plate 3 are fixedly connected to two symmetrically arranged positioning blocks 42, the two positioning blocks 42 located on the surface of the base 2 are rotatably connected to the support arm 43, the two positioning blocks 42 located on the bottom surface of the fixed plate 3 are rotatably connected to the connecting arm 44, the middle part of each support arm 43 is rotatably connected to the middle part of the connecting arm 44 on the same side, and each support arm 43 and the end of the connecting arm 44 away from the positioning block 42 are fixedly connected to the sliding block 45 Two symmetrically arranged sliding rods 53 are fixedly connected to the surface of the base 2 and the bottom surface of the fixed plate 3. The sliding blocks 45 connected to the two support arms 43 are respectively slidably connected to the sliding rods 53 on the bottom surface of the fixed plate 3. The sliding blocks 45 connected to the two connecting arms 44 are respectively slidably connected to the sliding rods 53 on the surface of the base 2. A fixed rod 46 is fixedly connected between the sliding blocks 45 connected to the two connecting arms 44. A fixed block 47 is fixedly connected to the middle of the fixed rod 46. A baffle 49 is fixedly connected to the middle of the base 2. One end of the limit rod 48 is rotatably connected to the baffle 49, and the other end of the limit rod 48 is rotatably connected to a side of the base 2 away from the positioning block 42. The middle of the limit rod 48 is threadedly connected to the fixed block 47, and the end of the limit rod 48 away from the baffle 49 is fixedly connected to a handle 50.

[0025] As a preferred technical solution of the present invention, a slot 30 is provided on the bottom surface of the connecting block 29, the top of the threaded rod 24 is slidably connected to the slot 30, and a bolt 31 is rotatably connected to one side of the connecting block 29, and the bolt 31 is threadedly connected to one end of the threaded rod 24 located in the slot 30.

[0026] As a preferred technical solution of the present invention, the support plate 72 is an arc-shaped plate, and the surface of the support plate 72 is fixedly connected with an anti-slip pad 51 .

[0027] As a preferred technical solution of the present invention, a buffer pad 32 is fixedly connected to the surface of the positioning plate 20 .

[0028] As a preferred technical solution of the present invention, a plurality of anti-slip strips are fixedly connected to one side of the limiting block 37 close to the limiting plate 33 , and a plurality of anti-slip grooves are formed on the outer wall of the limiting block 37 .

[0029] As a preferred technical solution of the present invention, a handle 54 is fixedly connected to the outer wall of the rotating tube 15 .

[0030] The working principle of the rotor lifting device for motor assembly in the present invention is as follows: Step 1, placing the rotor: move the base 2 to the motor assembly area so that the lifting device is aligned with the motor housing, then insert the rotating shaft of the rotor body 1 into the support tube 11, and place the rotor body 1 on the support plate 72. Then the staff picks up the fixed tube 12. At this time, the connecting column 39 will be pulled out of the square tube 38. Under the action of the rotating sleeve 34, the fixed tube 12 can rise and rotate, align the fixed tube 12 with the rotating shaft of the rotor body 1, and then push the connecting plate 5 so that the connecting plate 5 moves forward along the slide rail 4. Under the push of the support tube 11, the rotor body 1 will move forward accordingly, so that the rotating shaft of the rotor body 1 is inserted into the fixed tube 12, and then twist the limit block 37 so that the limit block 37 is in close contact with the limit plate 33 to fix the fixed tube 12. The anti-skid pad 51 on the support plate 72 can increase the friction between the rotor body 1 and the support plate 72, reduce the squeezing of the support plate 72 on the outer wall of the rotor body 1, and avoid damage to the rotor body 1. At this time, the pre-alignment work of the rotor body 1 is completed; Step 2: Alignment of the rotor body 1: Push the connecting plate 5 to slide along the slide rail 4 until the positioning plate 20 enters the motor housing, then rotate the handle 54 to drive the rotating tube 15 to rotate, and the rotating tube 15 will drive the connecting plate 16 to rotate. During the rotation of the arc groove 17, the moving rod 18 will be squeezed, so that the moving rod 18 has a tendency to move along the arc groove 17. Since the positioning rod 19 is restricted by the moving groove 21, the moving rod 18 can only move in the moving groove 21 together with the positioning rod 19. As the rotating tube 15 continues to rotate, The positioning rod 19 will gradually extend from the moving groove 21, thereby causing the positioning plate 20 to expand outward until the positioning plate 20 fits against the inner wall of the motor housing, and then the handle 54 is continuously rotated. Under the pressure of the positioning plate 20, the motor housing will move. When the inner wall of the motor housing is completely fitted with the inner wall of the positioning plate 20, the center lines of the rotor body 1 and the motor housing will form a collinear line, so that the rotor body 1 and the motor housing are precisely aligned. The buffer pad 32 outside the positioning plate 20 can prevent the positioning plate 20 from damaging the stator and other components in the motor housing. Step 3: Assembling the rotor body 1: After the alignment is completed, reverse the rotating tube 15 to shrink the positioning plate 20, and then pull the connecting plate 5 outward. This operation will first remove the positioning plate 20 from the motor housing, and then separate the rotating shaft of the rotor body 1 from the fixing tube 12 (forming the attached Figure 1The state shown in the figure), rotate the limit block 37, and then move the fixed tube 12 so that the connecting column 39 is received in the square tube 38, and the square tube 38 drops to the bottom of the rotating sleeve 34. At this time, the positioning plate 20 will not block the movement of the rotor body 1, and then the staff first pushes the connecting plate 5 so that one side of the connecting plate 5 is flush with the fixing plate 3, and then pushes the fixing column 10. At this time, the support tube 11 will push the rotor body 1 forward, and the distance between the two support frames 7 will gradually decrease. The rotor body 1 will accurately enter the motor housing. As the fixing column 10 is continuously pushed, the two support frames 7 and the fixing column 10 will fit together. At this time, the rotor body 1 is separated from the support frame 7, and the rotating shaft of the rotor body 1 will be accurately inserted into the mounting hole in the motor housing (forming a hole as shown in the figure). Figure 2 The staff then pushes the rotor body 1 forward to separate the rotor body 1 from the support tube 11. At this time, the rotor body 1 is completely inserted into the motor housing, and the assembly of the rotor body 1 is completed. The staff then pulls back the fixing column 10 and the connecting plate 5 to facilitate the next assembly. Step 4: Adjustment during assembly of rotor bodies 1 of different sizes: When assembling rotor bodies 1 of different sizes, for the rotating shafts of the rotor bodies 1 of different sizes, the support tube 11 can be replaced by the bolts 31, so that the diameter of the support tube 11 matches the diameter of the rotating shaft of the rotor body 1, and the connecting column 39 and the fixed tube 12 are also fixedly connected by screws or the like, so that the fixed tube 12 can be replaced with an inner diameter that matches the diameter of the rotating shaft of the rotor body 1; for rotor bodies 1 of different outer diameters, the height of the support tube 11 can be adjusted by the threaded rod 24, so that the support tube 11 can be stably sleeved with the rotating shaft of the rotor body 1, and the sliding connection between the connecting column 39 and the square tube 38 can make the fixed tube 12 and the rotating shaft of the rotor body 1 stably, accurately aligned and sleeved, so as to adapt to rotor bodies 1 of different outer diameters; Step 5: Adjustment of motor housings with different assembly heights: By rotating the handle 50, the handle 50 drives the limit rod 48 to rotate, so that the fixing block 47 moves along the limit rod 48, thereby driving the connecting arm 44 to move. Since an X structure is formed between the connecting arm 44 and the support arm 43, and the position between the bottom of the support arm 43 and the base 2 is fixed, the connecting arm 44 will push the fixing plate 3 to rise or fall (forming a Fig.13 or attached Fig.14 The height of the rotor body 1 is adjusted to facilitate more precise assembly; Step 6. Other effects: The anti-slip patterns provided on the outer wall of the movable ring 27 and the outer wall of the limit block 37 can increase the friction between the user's hand, making it easier for the user to rotate the movable ring 27 and the limit block 37, thereby providing convenience for the user; the anti-slip strips provided on the limit block 37 can increase the friction between the limit block 37 and the limit plate 33, thereby improving the fixing effect on the fixed tube 12; the clamping block 23 is non-circular in design, thereby preventing the threaded rod 24 from rotating, avoiding the support tube 11 from shifting, thereby improving the stability of the rotor body 1 when it is placed, and is beneficial to improving the alignment accuracy of the rotor body 1.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotor lifting device for motor assembly, characterized in that: The invention comprises a rotor body (1), a base (2) is installed below the rotor body (1), a surface of the base (2) is connected to a fixing plate (3) via a connecting assembly, the surface of the fixing plate (3) is fixedly connected to two symmetrically arranged slide rails (4), the surface of the fixing plate (3) is slidably connected to a connecting plate (5), the bottom surface of the connecting plate (5) is provided with two slide grooves (6) corresponding to the positions of the slide rails (4), the surface of the connecting plate (5) is connected to a supporting assembly, the rotor body (1) is located on the supporting assembly, one end of the rotating shaft of the rotor body (1) is slidably connected to a fixing pipe (12), the side of the fixing pipe (12) away from the rotor body (1) is fixedly connected to a connecting pipe (13), and the side of the connecting pipe (13) away from the fixing pipe (12) is fixedly connected to a fixing plate (14), The outer wall of the connecting tube (13) is rotatably connected to a rotating tube (15); a connecting disk (16) is fixedly connected to a side of the rotating tube (15) close to the fixed disk (14); the connecting disk (16) fits the fixed disk (14); a plurality of arc grooves (17) are provided on the surface of the connecting disk (16); a moving rod (18) is slidably connected in each of the arc grooves (17); a positioning rod (19) is fixedly connected to a side of each of the moving rods (18) close to the fixed disk (14); a plurality of moving grooves (21) corresponding to the positions of the positioning rods (19) are provided on the surface of the fixed disk (14); a positioning plate (20) is fixedly connected to one end of the positioning rod (19) located outside the fixed disk (14); and the fixed tube (12) and the fixed plate (3) are connected via a fixing assembly.

2. A rotor lifting device for motor assembly according to claim 1, characterized in that: The support assembly comprises a support frame (7), a slider (8), a connecting rod (9), a fixed column (10) and a support tube (11); the support frame (7) comprises two support rods (71) and a support plate (72); the bottom surface of the support plate (72) is fixedly connected to two symmetrically arranged support rods (71); the support frame (7) is arranged in two parts, one of the support frames (7) is fixedly connected to a side of the surface of the connecting plate (5) close to the positioning plate (20); the bottom of the two support rods (71) of the other support frame (7) are both fixedly connected to the slider (8); the connecting plate (5) is fixedly connected to the bottom of the two support rods (71) of the connecting plate (5) ) surface is provided with two sliding grooves (52) corresponding to the positions of the two sliders (8); the surface of the connecting plate (5) is slidably connected to a connecting rod (9); the bottom surfaces of both ends of the connecting rod (9) are fixedly connected to sliders (8); the sliders (8) are slidably connected to the sliding grooves (52); the middle of the connecting rod (9) is fixedly connected to a fixing column (10); the top of the fixing column (10) is connected to a support tube (11) via a lifting assembly; the rotating shaft of the rotor body (1) is slidably connected to the support tube (11); and the outer wall of the rotor body (1) is in contact with the surface of the support plate (72).

3. A rotor lifting device for motor assembly according to claim 2, characterized in that: The lifting assembly comprises a clamping block (23), a threaded rod (24), a fixed ring (25), a movable ring (27), a rotating ring (28) and a connecting block (29); a lifting groove (22) is provided in the fixed column (10); the clamping block (23) is slidably connected in the lifting groove (22); the surface of the clamping block (23) is fixedly connected to the threaded rod (24); the top of the threaded rod (24) is passed through the surface of the fixed column (10); the top surface of the fixed column (10) is fixedly connected to the fixing ring (25); the fixing ring (25) is fixedly connected to the fixing ring (25) ) is slidably connected to the surface of a moving ring (27), the bottom surface of the moving ring (27) is fixedly connected to a rotating ring (28), the surface of the fixed ring (25) is provided with a rotating groove (26) corresponding to the position of the rotating ring (28), the outer wall of the support tube (11) away from the rotor body (1) is fixedly connected to a connecting block (29), the top of the threaded rod (24) is fixedly connected to the bottom surface of the connecting block (29), the threaded rod (24) is threadedly connected to the inner wall of the moving ring (27), and the outer wall of the moving ring (27) is provided with anti-slip grooves.

4. A rotor lifting device for motor assembly according to claim 1, characterized in that: The fixing assembly comprises a limit plate (33), a rotating sleeve (34), a rotating rod (35), a screw rod (36), a limit block (37), a square tube (38), a connecting column (39) and a moving block (40); two limit plates (33) are fixedly connected to one side of the fixing plate (3) close to the fixing tube (12); a rotating sleeve (34) is rotatably connected between the two limit plates (33); both sides of the rotating sleeve (34) are fixedly connected to a rotating rod (35); the rotating rod (35) is rotatably connected to the limit plate (33); one side of the rotating rod (35) close to the connecting plate (5) is fixedly connected to the other side of the rotating sleeve (34); The end of the rotating sleeve (34) is fixedly connected to a screw rod (36), the outer wall of the screw rod (36) is threadedly connected to a limit block (37), one side of the limit block (37) is in contact with one side of the limit plate (33), a square tube (38) is slidably connected inside the rotating sleeve (34), a connecting column (39) is fixedly connected to the outer wall of the fixed tube (12), the connecting column (39) is slidably connected to the inner wall of the square tube (38), the bottom end of the connecting column (39) is fixedly connected to two symmetrically arranged moving blocks (40), and the surface of the square tube (38) is provided with two telescopic grooves (41) corresponding to the positions of the moving blocks (40).

5. The rotor lifting device for motor assembly according to claim 1, characterized in that: The connecting assembly comprises two scissor-type lifting units, a fixed rod (46), a fixed block (47), a limit rod (48), a baffle (49) and a handle (50). Each of the scissor-type lifting units comprises two positioning blocks (42), a support arm (43), a connecting arm (44), a sliding block (45) and two sliding rods (53). The surface of the base (2) and one end of the bottom surface of the fixed plate (3) are fixedly connected to two symmetrically arranged positioning blocks (42). The two positioning blocks (42) located on the surface of the base (2) are rotatably connected to the support arm (43). The two positioning blocks (42) located on the bottom surface of the fixed plate (3) are rotatably connected to the connecting arm (44). The middle part of each support arm (43) is rotatably connected to the middle part of the connecting arm (44) on the same side. The end of each support arm (43) and the connecting arm (44) away from the positioning block (42) is fixedly connected to the sliding block (45). The surface of the base (2) and the fixed block (47) are fixedly connected to the connecting arm (44). The bottom surface of the plate (3) is fixedly connected to two symmetrically arranged sliding rods (53); the sliding blocks (45) connected to the two supporting arms (43) are respectively slidably connected to the sliding rods (53) on the bottom surface of the fixed plate (3); the sliding blocks (45) connected to the two connecting arms (44) are respectively slidably connected to the sliding rods (53) on the surface of the base (2); a fixed rod (46) is fixedly connected between the sliding blocks (45) connected to the two connecting arms (44); a fixed block (47) is fixedly connected to the middle of the fixed rod (46); a baffle (49) is fixedly connected to the middle of the base (2); one end of the limit rod (48) is rotatably connected to the baffle (49); the other end of the limit rod (48) is rotatably connected to a side of the base (2) away from the positioning block (42); the middle of the limit rod (48) is threadedly connected to the fixed block (47); and one end of the limit rod (48) away from the baffle (49) is fixedly connected to a handle (50).

6. A rotor lifting device for motor assembly according to claim 3, characterized in that: A slot (30) is provided on the bottom surface of the connection block (29), and the top end of the threaded rod (24) is slidably connected to the slot (30). A bolt (31) is rotatably connected to one side of the connection block (29), and the bolt (31) is threadedly connected to one end of the threaded rod (24) located in the slot (30).

7. A rotor lifting device for motor assembly according to claim 2, characterized in that: The support plate (72) is an arc-shaped plate, and a non-slip pad (51) is fixedly connected to the surface of the support plate (72).

8. The rotor lifting device for motor assembly according to claim 1, characterized in that: A buffer pad (32) is fixedly connected to the surface of the positioning plate (20).

9. The rotor lifting device for motor assembly according to claim 4, characterized in that: A plurality of anti-slip strips are fixedly connected to one side of the limit block (37) close to the limit plate (33), and a plurality of anti-slip grooves are formed on the outer wall of the limit block (37).

10. The rotor lifting device for motor assembly according to claim 1, characterized in that: A handle (54) is fixedly connected to the outer wall of the rotating tube (15).

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