A large motor rotor-stator separation device that is easy to adjust

Abstract

This invention discloses a large motor rotor-stator separation device that is easy to adjust, belonging to the field of tooling accessories. It includes a base, a mobile trolley, a support body, and a feeding device. The base has a track, and the mobile trolley has a worktable on its body. An adjustment structure and a locking device are provided between the worktable and the trolley body. The adjustment mechanism includes a lateral movement mechanism and a rotation mechanism to achieve lateral and rotational adjustment between the worktable and the trolley body. The locking device includes a lateral movement locking device and a rotation locking device. Two support bodies are arranged facing each other at both ends of the base. Each support body includes a connecting seat, a column, a cross plate, a lifting screw, a shaft seat, and a support shaft. The feeding device includes an adjusting screw and a handwheel. The adjusting screw is rotatably connected to two screw seats on the base, and the rear end of the adjusting screw is connected to the handwheel. The connecting seat of the adjusting support body is bolted to the nut of the adjusting screw. Compared with existing technologies, this device is convenient, fast, and stable.

Description

Technical Field

[0001] This invention relates to a large-scale electromechanical maintenance equipment, and more particularly to a large-scale motor rotor-stator separation device. Background Technology

[0002] Separating the stator and rotor of a large motor is a difficult point in the maintenance of large motors. The applicant previously applied for "A device for separating the stator and rotor of a large motor" (2022210314240), which includes a base, a movable base and left and right supports. The left and right supports have vertical adjustment functions to ensure that the stator winding and rotor winding are coaxial, and the movable base has a horizontal movement function to ensure that the stator winding and rotor winding are smoothly separated, fundamentally solving the problem of separating the rotor winding and stator winding of a motor.

[0003] However, in actual operation, due to different motor specifications, the center distance between the left and right support shafts needs to be frequently adjusted during the motor rotation and stator separation process. However, since the left support body and the base are bolted together, the above-mentioned motor rotation and stator separation device has the following problems when used: (1) The left support body and the base are bolted together, making separation difficult. The separation operation generally requires 3 people for 2 hours, resulting in low work efficiency and automation. (2) Since the left support body and the base need to be reassembled after separation, the coaxiality of the left and right support shafts needs to be readjusted after assembly, increasing the workload. (3) The above adjustment operation requires the use of a crane or gantry crane, increasing the cost of equipment. Summary of the Invention

[0004] The technical objective of this invention is to address the shortcomings of the prior art by providing a large motor rotor-stator separation device that is easy to adjust. By improving the connection structure between the left support body and the base, and changing the bolt connection structure to a lead screw and nut sliding structure, quick adjustment by a single person can be achieved.

[0005] The technical solution of this invention to solve its technical problem is: a large motor rotor-stator separation device that is easy to adjust, comprising a base, a moving trolley, and a support body, characterized in that: it further comprises a feeding device; the base has a track, the moving trolley can slide along the track, the trolley body is provided with a worktable, an adjustment structure and a locking device are provided between the worktable and the trolley body, the adjustment mechanism includes a lateral movement mechanism and a rotation mechanism, used to realize the lateral movement and rotation adjustment between the worktable and the trolley body; the locking device includes a lateral movement locking device and a rotation locking device; there are two support bodies, which are arranged facing each other at both ends of the base; each support body includes a connecting seat, a column, a cross plate, a lifting screw, a shaft seat and a support shaft; The front end of the support shaft is movably mounted with a pin. There are two columns, with a horizontal plate and a connecting seat connected to the upper and lower ends respectively. The two columns are provided with sliding tracks opposite each other. The lifting screw passes downward through the threaded hole of the screw nut and the through hole of the horizontal plate, and its lower end is connected to the shaft seat through the connecting plate. The shaft seat is connected to the slider, and the slider slides inside the column. The two support bodies are a fixed support body and an adjustable support body. The connecting seat of the fixed support body is connected to the base by bolts. The feeding device includes an adjusting screw and a handwheel. The adjusting screw is rotatably connected to the two screw seats of the base, and the rear end of the adjusting screw is connected to the handwheel. The connecting seat of the adjustable support body is connected to the nut of the adjusting screw by bolts.

[0006] Furthermore, the aforementioned lifting screw and the through hole of the cross plate are connected by a thrust bearing.

[0007] Furthermore, the support shaft of the aforementioned adjustable support body is a telescopic support shaft.

[0008] Furthermore, the aforementioned retractable support shaft includes a bushing and a spindle with threaded connections. The bushing is fixed on the shaft seat, and a tube cap is provided at the rear end. The tube cap is threadedly connected to a push rod. A pin is movably installed at the front end of the spindle, and a manual crank wheel is connected to the rear end via a push rod.

[0009] Guide bolts pass through the bolt holes on both sides of the connecting seat of the adjusting support and slide within the two guide grooves of the base.

[0010] Furthermore, the two guide grooves mentioned above are connected by a telescopic dustproof plate.

[0011] Furthermore, the aforementioned adjustment structure includes an adjustment plate; the lateral movement mechanism includes a matching central shaft and a transverse strip hole, with a central shaft at the center of the vehicle body and a transverse strip hole in the middle of the adjustment plate, the hole width being the same as the central shaft diameter; the adjustment plate and the upper surface of the vehicle body are slidably connected through the central shaft and the transverse strip hole.

[0012] Furthermore, the aforementioned rotating mechanism includes a matching annular slide rail and a slider; the upper part of the adjusting plate and the bottom surface of the worktable are rotatably connected through the annular slide rail and the slider.

[0013] Furthermore, the aforementioned transverse locking device includes a transverse bolt and a bolt seat with internal threads; the bolt seat is located on the vehicle body; the transverse bolt is aligned with the transverse strip hole of the adjustment plate, its inner end is rotatably connected to the blind hole of the adjustment plate, and its outer end passes through the bolt seat and is exposed to the outside, so that the adjustment plate can be moved and locked by rotating the transverse bolt; the transverse bolt has a shoulder, and a shoulder pressure plate is connected to the adjustment plate by bolts to realize the shoulder limit.

[0014] Furthermore, the aforementioned rotary locking device is a C-shaped buckle plate, and the C-shaped buckle plate and the side wall of the adjusting plate have corresponding bolt holes.

[0015] Compared with the prior art, the present invention has the following outstanding advantages:

[0016] 1. The time taken for a single adjustment has been reduced from 2 hours to 0.25 hours, improving efficiency by 800%;

[0017] 2. The original three-person operation has been reduced to a single-person operation, saving labor costs;

[0018] 3. No crane is required for adjustment when using this invention, reducing equipment usage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the left-side structure of the fixed support body of the present invention.

[0021] Figure 3 This is a right-view diagram showing the connection relationship between the adjustable support and the base of the present invention.

[0022] Figure 4 yes Figure 3 A magnified view of a portion of the image.

[0023] Figure 5 This is a top view of the adjustable support body of the present invention.

[0024] Figure 6 This is a top view of the adjusted structure in Embodiment 1 of the present invention.

[0025] Figure 7 This is a right-side view of the adjusted structure in Embodiment 1 of the present invention.

[0026] Figure 8 This is a top view of the adjusted structure in Embodiment 2 of the present invention. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0028] In the following embodiments, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this invention application according to the specific circumstances.

[0029] To better narrate, Figure 1 The side facing the motor is called front, and the opposite side is called rear. It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," "end," and "side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present invention.

[0030] like Figures 1-8 As shown, the present invention includes a base 1, a mobile trolley 2, a support body, and a feeding device.

[0031] The base 1 has a track 7, and the trolley 2 can slide along the track 7. Its movement function is to achieve smooth separation of the stator winding and rotor winding of the motor. In the optimized solution, the track 7 is provided with a trolley stop 21.

[0032] The mobile trolley 2 has a workbench 17 on its body 5 for placing the electric motor.

[0033] The workbench 17 has a pressure plate 3 for fixing the motor. In the optimized solution, the pressure plate 3 and the workbench 17 are connected by bolts.

[0034] An adjustment mechanism and a locking device are provided between the worktable 17 and the vehicle body 5. The adjustment mechanism includes a lateral movement mechanism and a rotation mechanism, used to achieve lateral movement and rotation adjustment between the worktable 17 and the vehicle body 5. The locking device is used to lock the position between the worktable 17 and the vehicle body 5.

[0035] Two supports are arranged opposite each other at both ends of the base 1. Each support includes a connecting seat 28, a column 11, a horizontal plate 20, a lifting screw 12, a bearing seat 26, and a support shaft. A pin 14 is movably mounted at the front end of the support shaft for positioning the rotor 15. Two columns 11 are connected to the horizontal plate 20 and the connecting seat 28 at their upper and lower ends, respectively, and the two columns 11 are provided with sliding tracks opposite each other. The lifting screw 12 passes downward through the threaded hole of the screw nut 11 and the through hole of the horizontal plate 20, and its lower end is connected to the bearing seat 26 through a connecting plate. The bearing seat 26 is connected to a slider 27, which slides within the column 11. The bearing seat 26 can move up and down under the drive of the lifting screw 12, realizing the up and down adjustment of the support shaft pin 14 to ensure that the stator 16 winding and the rotor 15 winding are coaxial. In the optimized scheme, the lifting screw 12 and the through hole of the horizontal plate 20 are connected by a thrust bearing. The connecting seat 28 and the column 11 are fixedly connected by reinforcing ribs.

[0036] The two supports are a fixed support 9 and an adjustable support 23.

[0037] The connecting seat 28 of the fixed support body 9 is connected to the base 1 by bolts, and the connecting seat 28 is positioned by bolt mounting holes at different locations. The support shaft of the fixed support body 9 is a long support shaft 13.

[0038] The support shaft of the adjustable support body 23 is a telescopic support shaft, which includes a bushing 19 with a threaded connection and a spindle 18. The bushing 19 is fixed on the bearing seat 26, and a tube cap is provided at the rear end, which is threadedly connected to a push rod. A pin 14 is movably mounted at the front end of the spindle 18, and a manual crank 22 is connected to the rear end via a push rod. By rotating the manual crank 22, the push rod pushes the spindle 18 and the pin 14 forward.

[0039] The feeding device includes an adjusting screw 8 and a handwheel 25. The adjusting screw 8 is rotatably connected to two screw seats 30 on the base 1, and the rear end of the adjusting screw 8 is connected to the handwheel 25. The connecting seat 28 of the adjusting support 23 is bolted to the nut 24 of the adjusting screw 8. To increase the stability of the adjusting support 23, in the optimized design, guide bolts 29 pass through the bolt holes on both sides of the connecting seat 28 and slide within the guide groove 31 of the base 1. In the optimized design, the lower edge wall of the bolt hole of the connecting seat 28 has a protrusion extending downwards, and the guide groove 31 has a notch at the corresponding position. The feeding device enables the adjusting support 23 to slide on the base 1 and achieves automatic centering of the left and right support shafts. In the optimized design, the two guide grooves 31 are connected by a telescopic dustproof plate 32.

[0040] Operating Instructions: The motor is hoisted onto the moving trolley. The height of the support shafts on both sides is adjusted by lifting screw 12 to bring the rotor 15 and stator to the same horizontal plane. Lateral and rotational alignment is achieved through structural adjustment. Then, handwheel 25 is rotated, and the adjusting screw 8 moves the adjusting support 23 forward and backward, achieving axial movement of the driving adjusting support 23 and automatic alignment of the two support shafts. Next, rotating the manual crank 22 applies axial thrust to the motor rotor 15 to fix it in place, driving the trolley. The stator moves laterally with the moving trolley until the motor rotor 15 smoothly separates from the stator.

[0041] The aforementioned adjustment structure and locking device can be implemented in various ways.

[0042] like Figure 6-7 As shown in Embodiment 1, the adjustment structure includes an adjustment plate 6.

[0043] The lateral movement mechanism specifically includes a matching central shaft 38 and a transverse slot 39. A central shaft 38 is located at the center of the vehicle body 5, and a transverse slot 39 is located in the middle of the adjusting plate 6. The width of the slot is the same as the diameter of the central shaft 38. The adjusting plate 6 and the upper surface of the vehicle body 5 are slidably connected through the central shaft 38 and the transverse slot 39, allowing the motor to move laterally relative to the track 7.

[0044] The rotating mechanism specifically includes a matching annular slide rail 34 and a slider. The upper part of the adjusting plate 6 and the bottom surface of the worktable 17 are rotatably connected by the annular slide rail 34 and the slider. The specific positions and distribution of the annular slide rail 34 and the slider can be interchanged. The annular slide rail can also be an annular groove, and there can be multiple sliders, or annular sliders.

[0045] In this embodiment, the locking device includes a transverse locking device and a rotary locking device.

[0046] The lateral locking device includes a lateral bolt 37 and a bolt seat 36 with internal threads. The bolt seat 36 is mounted on the vehicle body 5. The lateral bolt 37 is aligned with the transverse slot 39 of the adjusting plate 6, with its inner end rotatably connected to a blind hole in the adjusting plate 6, and its outer end exposed through the bolt seat 36. Rotating the lateral bolt 37 allows the adjusting plate 6 to move and lock. To facilitate retraction, the lateral bolt 37 has a shoulder, and a shoulder pressure plate 35 is bolted to the adjusting plate 6 to limit the shoulder movement, transmitting the force of pushing and pulling the lateral bolt 37 to the adjusting plate 6.

[0047] The rotary locking device is a C-shaped buckle plate 33. The C-shaped buckle plate 33 and the side wall of the adjusting plate 6 have corresponding bolt holes. After the worktable 17 and the adjusting plate 6 are aligned, the bolts on the side wall of the C-shaped buckle plate 33 and the adjusting plate 6 are fixed and tightened to achieve locking.

[0048] like Figure 8 As shown in Embodiment 2, the adjustment structure includes an adjustment plate 6.

[0049] The lateral movement mechanism specifically includes a matching central shaft 38 and a transverse slot 39. A central shaft 38 is located at the center of the vehicle body 5, and a transverse slot 39 is located in the center of the adjusting plate 6, with the slot width being the same as the diameter of the central shaft 38. The adjusting plate 6 and the upper surface of the vehicle body 5 are slidably connected via the central shaft 38 and the transverse slot 39, allowing the motor to move laterally relative to the track 7. Two transverse guide rails are located on the upper surface of the vehicle body 5, and the bottom surface of the adjusting plate 6 has corresponding grooves. These two components work together to ensure the lateral guidance of the worktable 17.

[0050] The rotating mechanism specifically includes a matching worm gear 42 and worm 41. The upper part of the adjusting plate 6 and the bottom surface of the worktable 17 are rotatably connected by the worm gear 42 and worm 41. Specifically, the worm gear 42 is installed on the bottom surface of the worktable 17, and the worm 41 is installed on one side of the upper part of the adjusting plate 6. The two ends of the worm 41 are rotatably connected to the worm seat on the adjusting plate 6. By rotating the worm 41, the worm gear 42 is rotated to finely adjust the orientation angle of the worktable 17. The specific positions and distribution of the worm gear 42 and worm 41 can be interchanged vertically.

[0051] The lateral movement locking device consists of four stop bolts 40. The stop bolts 40 are fixedly connected to the vehicle body 5. The adjusting plate 6 has four slotted holes at corresponding positions. After lateral alignment, the stop bolts 40 are tightened with fastening nuts to achieve lateral movement locking.

[0052] The rotary locking device is a C-shaped buckle plate 33. The C-shaped buckle plate 33 and the side wall of the adjusting plate 6 have corresponding bolt holes. After the worktable 17 and the adjusting plate 6 are aligned, the bolts on the side wall of the C-shaped buckle plate 33 and the adjusting plate 6 are fixed and tightened to achieve locking.

[0053] In Example 3, the transverse mechanism, the rotation mechanism, and the rotation locking device are the same as in Example 2. The transverse locking device is based on the transverse bolt 37 and bolt seat 36 structure in Example 1, with the addition of the stop bolt 40 from Example 2.

[0054] This invention has the functions of vertical adjustment and horizontal smooth movement. Since the gap between the rotor 15 winding and the stator 16 winding is ≤10mm, it can ensure that the rotor 15 winding and the stator 16 winding will not be damaged by collision during the separation process.

[0055] It should be noted that any aspects not described in detail in this embodiment are techniques known in the art.

[0056] The above description is only for the purpose of describing specific embodiments of the present invention in detail. For those skilled in the art, various obvious changes made to it without departing from the spirit and scope of the present invention are within the protection scope of the present invention.

Claims

1. A large motor rotor-stator separation device that is easy to adjust, comprising a base, a moving trolley, and a support body, characterized in that: It also includes a feeding device; the base has a track, and the moving trolley can slide along the track. The trolley body is equipped with a worktable, and an adjustment mechanism and a locking device are provided between the worktable and the trolley body. The adjustment mechanism includes a lateral movement mechanism and a rotation mechanism to achieve lateral and rotational adjustments between the worktable and the trolley body; the locking device includes a lateral locking device and a rotation locking device; there are two support bodies, arranged facing each other at both ends of the base; each support body includes a connecting seat, a column, a horizontal plate, a lifting screw, a shaft seat, and a support shaft; a pin is movably installed at the front end of the support shaft; there are two columns, with the upper and lower ends connected to the horizontal plate and the connecting seat respectively, and the two columns are provided with sliding tracks facing each other; the lifting screw passes downwards through the threaded hole of the screw nut and the through hole of the horizontal plate, and its lower end is connected to the shaft seat through a connecting plate; the shaft seat is connected to the slider. The slider slides within the column; the two supports are a fixed support and an adjustable support; the connecting seat of the fixed support is bolted to the base; the feeding device includes an adjusting screw and a handwheel; the adjusting screw is rotatably connected to two screw seats on the base, and the rear end of the adjusting screw is connected to the handwheel; the connecting seat of the adjustable support is bolted to the nut of the adjusting screw; the adjusting mechanism includes an adjusting plate; the transverse movement mechanism includes a matching central shaft and a transverse slot; there is a central shaft at the center of the vehicle body; the adjusting plate has a transverse slot in the middle, the width of which is the same as the diameter of the central shaft; the adjusting plate and the upper surface of the vehicle body are slidably connected through the central shaft and the transverse slot; the rotating mechanism includes a matching annular slide rail and a slider; the upper part of the adjusting plate and the bottom surface of the worktable are rotatably connected through the annular slide rail and the slider.

2. The easily adjustable large motor rotor-stator separation device according to claim 1, characterized in that: The lifting screw and the through hole of the horizontal plate are connected by a thrust bearing.

3. The easily adjustable large motor rotor-stator separation device according to claim 1, characterized in that: The support shaft of the adjustable support body is a telescopic support shaft.

4. The easily adjustable large motor rotor-stator separation device according to claim 3, characterized in that: The retractable support shaft includes a bushing and a spindle with threaded connection. The bushing is fixed on the shaft seat and has a tube cap at the rear end, which is threadedly connected to a push rod. The front end of the spindle is movably mounted with a pin, and the rear end is connected to a manual crank wheel via a push rod.

5. The easily adjustable large motor rotor-stator separation device according to claim 1, characterized in that: Guide bolts pass through bolt holes on both sides of the connecting seat of the adjusting support and slide within two guide grooves on the base.

6. The easily adjustable large motor rotor-stator separation device according to claim 5, characterized in that: The two guide grooves are connected by a telescopic dustproof plate.

7. The easily adjustable large motor rotor-stator separation device according to claim 1, characterized in that: The lateral locking device includes a lateral bolt and a bolt seat with internal threads; the bolt seat is located on the vehicle body; the lateral bolt is aligned with the transverse strip hole of the adjustment plate, its inner end is rotatably connected to the blind hole of the adjustment plate, and its outer end passes through the bolt seat and is exposed to the outside. The adjustment plate can be moved and locked by rotating the lateral bolt; the lateral bolt has a shoulder, and a shoulder pressure plate is connected to the adjustment plate by bolts to limit the movement of the shoulder.

8. The easily adjustable large motor rotor-stator separation device according to claim 1, characterized in that: The rotating locking device is a C-shaped buckle plate, and the C-shaped buckle plate and the side wall of the adjusting plate have corresponding bolt holes.

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