Motor disassembling and assembling device

Abstract

The utility model discloses a motor disassembling and assembling device which comprises an operation platform, a horizontal moving platform is arranged on the operation platform, a lower positioning plate is arranged on the horizontal moving platform, an upper mounting plate and a lower mounting plate are arranged above and below the operation platform respectively, and the upper mounting plate and the lower mounting plate are connected through a plurality of guide rods. The upper mounting plate and the lower mounting plate are in transmission connection with the telescopic end of the upper hydraulic cylinder and the telescopic end of the lower hydraulic cylinder respectively, a lifting adjusting mechanism is arranged on the upper mounting plate, an upper ejector pin is arranged on the lifting adjusting mechanism, and a lower ejector pin is arranged on the lower mounting plate; according to the scheme, through cooperation of the upper ejector pin and the lower ejector pin, abutting positioning of the two ends of the rotor can be achieved, the stator of the motor can be fixed through the lower positioning plate, position adjustment of the stator in the horizontal direction can be achieved through the horizontal moving platform, and therefore the coaxiality deviation between the rotor and the stator is reduced, and the dismounting and mounting precision is improved; and damage caused by disassembly and assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motor disassembly and assembly, in particular to a motor disassembly and assembly device. Background Art

[0002] As an important power device in national production, electric motors have a wide range of applications and make great contributions to improving production efficiency. However, during the production, manufacturing and testing of electric motors, the disassembly and assembly of the stator and rotor are usually completed manually. The stator and rotor have high requirements for assembly precision, especially for motors with high power and small stator-rotor electrical air gap. Therefore, manual assembly is difficult, time-consuming and inefficient. In addition, the quality of manually assembled motors has many uncertain factors, resulting in low assembly quality reliability. At the same time, it is also difficult to avoid bumps and damage.

[0003] At present, the existing stator-rotor assembly device is generally composed of a stator clamping device, an upper ejector, a lower ejector and upper and lower cylinders. The stator is fixed by the stator clamping device, and the upper and lower cylinders respectively drive the upper ejector and the lower ejector, and make the upper ejector and the lower ejector respectively press against the two ends of the rotor, and then the rotor is pushed into the stator by the upper and lower cylinders. However, this type of stator-rotor assembly device has a simple structure and only has the stator and rotor assembly function, but does not have the stator and rotor disassembly function; and the upper and lower cylinders are controlled separately, which may easily lead to inaccurate rotor position positioning due to the stroke deviation of the upper and lower cylinders; at the same time, the stator clamping device is generally clamped on the outer circle of the stator casing, which is a non-finished surface, resulting in a large coaxiality deviation between the stator and the rotor that are limited and fixed, so that the assembly process may damage the bearings, thereby affecting the assembly quality of the motor. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a motor disassembly and assembly device, which solves the problem that the stator and rotor are difficult to disassemble and assemble and are easily damaged.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is:

[0006] A motor disassembly and assembly device is provided, which includes an operating platform, a horizontal movable platform is provided on the operating platform, a lower positioning plate for fixing the stator is provided on the horizontal movable platform, an upper mounting plate and a lower mounting plate are respectively provided above and below the operating platform, the upper mounting plate and the lower mounting plate are connected by a plurality of guide rods, and the plurality of guide rods vertically penetrate the operating platform, the upper mounting plate and the lower mounting plate are respectively transmission-connected to the telescopic ends of the upper hydraulic cylinder and the lower hydraulic cylinder, and the telescopic ends of the upper hydraulic cylinder and the lower hydraulic cylinder are arranged facing each other in the vertical direction, a lifting adjustment mechanism is provided on the upper mounting plate, a vertical upper ejector is provided on the lifting adjustment mechanism, a vertical lower ejector is provided on the lower mounting plate, and the upper end of the lower ejector sequentially penetrates the operating platform and the lower positioning plate, and a plurality of distance sensors are evenly arranged on the circumference of the side wall of the lower ejector.

[0007] The beneficial effects of adopting the above technical solution are as follows: the upper ejector of this solution can be independently raised and lowered, and cooperated with the lower ejector to realize the abutment positioning of the two ends of the rotor, and the stator of the motor can be fixed by the lower positioning plate. At the same time, the horizontal moving platform can cooperate with the distance sensor to realize the horizontal position adjustment of the stator, thereby reducing the coaxiality deviation between the rotor and the stator as much as possible, thereby improving the disassembly and assembly accuracy, and reducing the damage to the rotor and stator during the disassembly and assembly process; finally, the upper and lower ejector pins are driven to move synchronously by the upper hydraulic cylinder and the lower hydraulic cylinder to realize the disassembly and assembly of the rotor and the stator.

[0008] Furthermore, the horizontal movable platform includes two first linear modules and two second linear modules located around the lower positioning plate. The two first linear modules are parallel and run synchronously, and the two second linear modules are parallel and run synchronously, and the first linear module and the second linear module are perpendicular to each other. First connecting rods are provided on the left and right sides of the lower positioning plate, and the two first connecting rods are respectively slid through the sliders of the two first linear modules. Second connecting rods are provided on the front and rear sides of the lower positioning plate, and the two second connecting rods are respectively slid through the sliders of the two second linear modules. The lower positioning plate is provided with threaded holes for fixing the stator.

[0009] The beneficial effects of adopting the above technical solution are: this solution can realize the position adjustment of the lower positioning plate on the horizontal plane through two first linear modules and two second linear modules, and adopts the cooperation mode of sliding and penetrating the first connecting rod and the second connecting rod with the slider to realize the limiting and fixing of the lower positioning plate while making the first linear module and the second linear module not interfere with each other when adjusting the position of the lower positioning plate.

[0010] Furthermore, the upper hydraulic cylinder and the lower hydraulic cylinder both include a first oil chamber and a second oil chamber separated by a piston. The two first oil chambers are respectively connected to the three-position four-way reversing valve through oil circuits. The three-position four-way reversing valve is connected to the oil supply end and the oil return end of the external oil supply equipment. The two second oil chambers are connected through oil circuits.

[0011] The beneficial effects of adopting the above technical solution are: this solution realizes the reverse synchronous extension and contraction of the upper hydraulic cylinder and the lower hydraulic cylinder through the linkage cooperation of the oil circuits of the upper hydraulic cylinder and the lower hydraulic cylinder, thereby realizing the synchronous up and down movement of the upper ejector and the lower ejector, thereby making the stroke deviation of the upper and lower hydraulic cylinders extremely small, the rotor load is stable, and the position positioning is precise.

[0012] Furthermore, the number of the distance sensors is four, and the extension directions of the detection ends of the four distance sensors are all located in the radial direction of the lower ejector pin.

[0013] The beneficial effects of adopting the above technical solution are as follows: this solution can detect the distance between the lower ejector and the inner wall of the assembly hole through the distance sensor, and by adjusting the horizontal moving platform to make the monitoring distances of the four distance sensors equal, the coaxial adjustment of the lower ejector and the stator can be achieved, and the coaxiality deviation is extremely small.

[0014] Furthermore, the lifting and lowering adjustment mechanism includes a centering seat fixed on the upper mounting plate, a vertical screw rod is provided on the centering seat, a nut is matched with the screw rod, the nut is fixedly connected to the upper end of the upper ejector pin, and a flat groove for avoiding the screw rod is opened on the upper ejector pin, the upper ejector pin passes through the upper mounting plate, and a stop block is provided on the upper mounting plate that slides and engages with the flat groove; this scheme can realize the lifting and lowering adjustment of the upper ejector pin by rotating the screw rod.

[0015] Furthermore, a plurality of thrust ball bearings for limiting the screw rod are fixedly provided in the centering seat so that the screw rod can bear the axial load; a rotating wheel is fixedly provided at the upper end of the screw rod so as to rotate the screw rod.

[0016] Furthermore, the ends of the upper ejector pin and the lower ejector pin that are close to each other are both provided with positioning cone heads so as to facilitate stable contact with the two ends of the rotor.

[0017] Furthermore, the operating platform is provided with a guide sleeve for slidingly sleeve the lower ejector and a plurality of linear bearings for slidingly sleeve the guide rods, so as to realize the limiting guidance of the lower ejector and the guide rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the motor disassembly and assembly device.

[0019] Figure 2 Schematic diagram of the structure of the horizontal moving platform.

[0020] Figure 3 It is a structural diagram of the oil circuit connection between the upper hydraulic cylinder and the lower hydraulic cylinder.

[0021] Figure 4 This is a cross-sectional view of the lower ejector pin.

[0022] Figure 5 for Figure 1 Schematic diagram of the structure of area A in the middle.

[0023] Among them, 1. operating platform, 2. lower positioning plate, 3. upper mounting plate, 4. lower mounting plate, 5. guide rod, 6. upper hydraulic cylinder, 7. lower hydraulic cylinder, 8. upper ejector, 9. lower ejector, 10. distance sensor, 11. first linear module, 12. second linear module, 13. first connecting rod, 14. second connecting rod, 15. slider, 16. first oil chamber, 17. second oil chamber, 18. three-position four-way reversing valve, 19. oil supply end, 20. oil return end, 21. centering seat, 22. screw, 23. nut, 24. flat groove, 25. stop block, 26. thrust ball bearing, 27. wheel, 28. positioning cone head, 29. guide sleeve, 30. linear bearing. DETAILED DESCRIPTION

[0024] The specific implementation methods of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific implementation methods. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all utility model creations using the concept of the present invention are protected.

[0025] Example 1

[0026] like Figure 1 As shown, the motor disassembly and assembly device of the present scheme includes an operating platform 1, a horizontal movable platform is provided on the operating platform 1, a lower positioning plate 2 for fixing the stator is provided on the horizontal movable platform, an upper mounting plate 3 and a lower mounting plate 4 are respectively provided above and below the operating platform 1, the upper mounting plate 3 and the lower mounting plate 4 are connected by four guide rods 5, and the four guide rods 5 vertically pass through the operating platform 1, and four linear bearings 30 for slidingly sleeved guide rods 5 are provided on the operating platform 1.

[0027] The upper mounting plate 3 and the lower mounting plate 4 are respectively connected to the telescopic ends of the upper hydraulic cylinder 6 and the lower hydraulic cylinder 7, and the telescopic ends of the upper hydraulic cylinder 6 and the lower hydraulic cylinder 7 are arranged facing each other in the vertical direction. The upper mounting plate 3 is provided with a lifting adjustment mechanism, and the lifting adjustment mechanism is provided with a vertical upper ejector 8. The lower mounting plate 4 is provided with a vertical lower ejector 9, and the upper end of the lower ejector 9 passes through the operating platform 1 and the lower positioning plate 2 in sequence. A number of distance sensors 10 are evenly arranged on the circumference of the side wall of the lower ejector 9.

[0028] During the design, a guide sleeve 29 is provided on the operating platform 1, which slides with the lower ejector 9. The guide sleeve 29 serves as a limit guide for the lower ejector 9 to prevent the lower ejector 9 from deflecting. A positioning cone head 28 is provided at one end of the upper ejector 8 and the lower ejector 9 that is close to each other, so as to facilitate a firm contact with the two ends of the rotor.

[0029] The upper ejector pin 8 of this solution can be independently raised and lowered, and cooperated with the lower ejector pin 9 to realize the abutment positioning of the two ends of the rotor, and the stator of the motor can be fixed by the lower positioning plate 2. At the same time, the horizontal movable platform can cooperate with the distance sensor 10 to realize the position adjustment of the stator in the horizontal direction, thereby reducing the coaxiality deviation between the rotor and the stator as much as possible, thereby improving the disassembly and assembly accuracy and reducing the damage to the rotor and stator during the disassembly and assembly process; finally, the upper ejector pin 8 and the lower ejector pin 9 are driven to move synchronously by the upper hydraulic cylinder 6 and the lower hydraulic cylinder 7 to realize the disassembly and assembly of the rotor and the stator.

[0030] Example 2

[0031] like Figure 2 As shown, this embodiment, based on embodiment 1, provides a specific solution for a horizontal movable platform, which includes two first linear modules 11 and two second linear modules 12 located around the lower positioning plate 2. The two first linear modules 11 are parallel and run synchronously, and the two second linear modules 12 are parallel and run synchronously, and the first linear module 11 and the second linear module 12 are perpendicular to each other. First connecting rods 13 are provided on the left and right sides of the lower positioning plate 2, and the two first connecting rods 13 are respectively slidably passed through the sliders 15 of the two first linear modules 11. Second connecting rods 14 are provided on the front and rear sides of the lower positioning plate 2, and the two second connecting rods 14 are respectively slidably passed through the sliders 15 of the two second linear modules 12. The lower positioning plate 2 is provided with threaded holes for fixing the stator.

[0032] This solution can realize the position adjustment of the lower positioning plate 2 on the horizontal plane through two first linear modules 11 and two second linear modules 12, and adopts the cooperation mode of sliding and penetrating the first connecting rod 13 and the second connecting rod 14 with the slider 15 to realize the limiting and fixing of the lower positioning plate 2 while making the first linear module 11 and the second linear module 12 not interfere with each other when adjusting the position of the lower positioning plate 2.

[0033] Example 3

[0034] like Figure 3As shown, this embodiment is a further limitation made on the basis of embodiment 1. The upper hydraulic cylinder 6 and the lower hydraulic cylinder 7 each include a first oil chamber 16 and a second oil chamber 17 separated by a piston. The two first oil chambers 16 are respectively connected to a three-position four-way reversing valve 18 through an oil circuit. The three-position four-way reversing valve 18 is connected to an oil supply end 19 and an oil return end 20 of an external oil supply device. The two second oil chambers 17 are connected through an oil circuit.

[0035] In specific implementation, when the three-position four-way reversing valve 18 is in the left position, the upper hydraulic cylinder 6 extends and the lower hydraulic cylinder 7 contracts; conversely, when the three-position four-way reversing valve 18 is in the right position, the upper hydraulic cylinder 6 contracts and the lower hydraulic cylinder 7 extends, and the movement strokes of the upper hydraulic cylinder 6 and the lower hydraulic cylinder 7 remain consistent.

[0036] This solution realizes the reverse synchronous extension and contraction of the upper hydraulic cylinder 6 and the lower hydraulic cylinder 7 through the linkage of the oil circuits of the upper hydraulic cylinder 6 and the lower hydraulic cylinder 7, thereby realizing the synchronous upward and downward movement of the upper ejector pin 8 and the lower ejector pin 9, thereby making the stroke deviation of the upper and lower hydraulic cylinders 7 extremely small, the rotor load stable, and the position positioning precise.

[0037] Example 4

[0038] like Figure 4 As shown, this embodiment is a further limitation made on the basis of the embodiment 1, in that the number of the distance sensors 10 is four, and the extension directions of the detection ends of the four distance sensors 10 are all located in the radial direction of the lower ejector pin 9 .

[0039] When the rotor and stator need to be assembled, the stator can be fixed on the lower positioning plate 2 first, and the lower ejector 9 can be driven upward so that the distance sensor 10 is located in the stator assembly hole. The distance sensor 10 detects the distance between the lower ejector 9 and the inner wall of the assembly hole. Then, by adjusting the horizontal moving platform, the monitoring distances of the four distance sensors 10 are made equal, so that the coaxial adjustment of the lower ejector 9 and the stator can be achieved, and the coaxiality deviation is extremely small.

[0040] Example 5

[0041] like Figure 5 As shown, this embodiment, based on Example 1, provides a specific scheme of the lifting and lowering adjustment mechanism, which includes a centering seat 21 fixed on the upper mounting plate 3, and a vertical screw rod 22 is provided on the centering seat 21, and a nut 23 is matched on the screw rod 22. The nut 23 is fixedly connected to the upper end of the upper ejector 8, and a flat groove 24 for avoiding the screw rod 22 is provided on the upper ejector 8. The upper ejector 8 passes through the upper mounting plate 3, and a stop block 25 is provided on the upper mounting plate 3 for slidingly engaging with the flat groove 24. In this scheme, the lifting and lowering adjustment of the upper ejector 8 can be achieved by rotating the screw rod 22.

[0042] During design, several thrust ball bearings 26 for limiting the screw rod 22 are fixedly provided in the centering seat 21 so that the screw rod 22 can bear the axial load; a rotating wheel 27 is fixedly provided at the upper end of the screw rod 22 so as to rotate the screw rod 22.

[0043] In combination with the above embodiments 1-5, the working principle of this solution is explained:

[0044] When the rotor and stator are assembled, the stator is fixed to the lower positioning plate 2 by screws, the lower ejector pin 9 is driven upward, and after the coaxial adjustment of the lower ejector pin 9 and the stator is completed, the rotor is placed on the lower ejector pin 9, and the upper ejector pin 8 is driven downward by rotating the rotating wheel 27 until the upper ejector pin 8 abuts against the upper end of the rotor, and then the upper ejector pin 8 and the lower ejector pin 9 are driven downward synchronously until the rotor is pressed into the preset position in the stator.

[0045] When the rotor and stator are disassembled, the stator is fixed to the lower positioning plate 2 by screws, and the lower end of the rotor is aligned with the lower ejector pin 9 by adjusting the horizontal movable platform, and the lower ejector pin 9 is driven to abut against the lower end of the rotor. Then, the upper ejector pin 8 is driven downward by rotating the rotating wheel 27 until the upper ejector pin 8 abuts against the upper end of the rotor, and then the upper ejector pin 8 and the lower ejector pin 9 are driven upward synchronously until the rotor and the stator are separated.

Claims

1. A motor disassembly and assembly device, characterized in that: The invention comprises an operating platform, wherein a horizontal movable platform is arranged on the operating platform, a lower positioning plate for fixing a stator is arranged on the horizontal movable platform, an upper mounting plate and a lower mounting plate are respectively arranged above and below the operating platform, the upper mounting plate and the lower mounting plate are connected by a plurality of guide rods, and the plurality of guide rods vertically penetrate the operating platform, the upper mounting plate and the lower mounting plate are respectively transmission-connected with the telescopic ends of the upper hydraulic cylinder and the lower hydraulic cylinder, and the telescopic ends of the upper hydraulic cylinder and the lower hydraulic cylinder are arranged facing each other in the vertical direction, a lifting and lowering adjustment mechanism is arranged on the upper mounting plate, a vertical upper ejector is arranged on the lifting and lowering adjustment mechanism, a vertical lower ejector is arranged on the lower mounting plate, and the upper end of the lower ejector sequentially penetrates the operating platform and the lower positioning plate, and a plurality of distance sensors are evenly arranged on the circumference of the side wall of the lower ejector.

2. The motor disassembly and assembly device according to claim 1, characterized in that: The horizontal movable platform includes two first linear modules and two second linear modules located around the lower positioning plate, the two first linear modules are parallel and run synchronously, the two second linear modules are parallel and run synchronously, and the first linear module and the second linear module are perpendicular to each other, first connecting rods are provided on the left and right sides of the lower positioning plate, the two first connecting rods are respectively slidably passed through the sliders of the two first linear modules, second connecting rods are provided on the front and rear sides of the lower positioning plate, the two second connecting rods are respectively slidably passed through the sliders of the two second linear modules, and threaded holes for fixing the stator are provided on the lower positioning plate.

3. The motor disassembly and assembly device according to claim 1, characterized in that: The upper hydraulic cylinder and the lower hydraulic cylinder each include a first oil chamber and a second oil chamber separated by a piston. The two first oil chambers are respectively connected to a three-position four-way reversing valve through an oil circuit. The three-position four-way reversing valve is connected to an oil supply end and an oil return end of an external oil supply device. The two second oil chambers are connected through an oil circuit.

4. The motor disassembly and assembly device according to claim 1, characterized in that: The number of the distance sensors is four, and the extending directions of the detection ends of the four distance sensors are all located in the radial direction of the lower ejector pin.

5. The motor disassembly and assembly device according to claim 1, characterized in that: The lifting and lowering adjustment mechanism includes a centering seat fixed on the upper mounting plate, a vertical screw rod is arranged on the centering seat, a nut is matched on the screw rod, the nut is fixedly connected to the upper end of the upper ejector pin, and a flat groove for avoiding the screw rod is opened on the upper ejector pin, the upper ejector pin passes through the upper mounting plate, and a stop block which is slidably engaged with the flat groove is arranged on the upper mounting plate.

6. The motor disassembling and assembling device according to claim 5, characterized in that: A plurality of thrust ball bearings for limiting the screw rod are fixedly arranged in the centering seat, and a rotating wheel is fixedly arranged on the upper end of the screw rod.

7. The motor disassembling and assembling device according to claim 1, characterized in that: The ends of the upper ejector pin and the lower ejector pin close to each other are both provided with positioning cone heads.

8. The motor disassembling and assembling device according to claim 1, characterized in that: The operating platform is provided with a guide sleeve for slidingly sleeve the lower ejector pin and a plurality of linear bearings for slidingly sleeve the guide rod.

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