CN219875424U - Stator drawing-through equipment - Google Patents

Abstract

The utility model relates to a stator drawing-through device, comprising: the first mount pad, second mount pad, third mount pad and stator installation department, first mount pad can make stator installation department be close to or keep away from the rotor, and the second mount pad then can adjust the radial deviation of stator installation department relative rotor level to align with the rotor in the horizontal radial direction, and the third mount pad can follow the inclined plane motion of second mount pad, thereby control the height of stator, conveniently align with the rotor in the direction of height. The stator drawing-through equipment provided by the utility model can adjust the position of the stator relative to the rotor in space, and the whole device can be installed on the ground, so that the risk that the center of gravity of the stator is unstable and collides with the rotor in the drawing-through process by using a crane and the like is reduced.

Description

Stator drawing-through equipment

Technical Field

The utility model relates to the technical field of maintenance of exciter stators, in particular to stator drawing-through equipment.

Background

The exciter matched with the large-sized generator and coaxially installed needs maintenance and overhaul after a working period, the stator of the exciter needs to be extracted during disassembly, and then the inner part and the outer part of the exciter are correspondingly arranged, such as maintenance, inspection, repair, test and the like. Finally, the stator is threaded back to continue the next working cycle.

Most of the prior movable brackets welded by steel square tubes are matched with lifting to complete the drawing-through of the inner stator, the risk that the inner stator collides with the outer rotor of the exciter is easy to occur during use, the operation is complex, time and labor are wasted, and the safety risk is high.

Disclosure of Invention

Based on this, it is necessary to provide a stator drawing-through device for solving the problem of difficulty in moving the stator.

Comprising the following steps:

the first mounting seat comprises a first base, a first guide rail arranged on the first base and extending along a first direction, and a power assembly;

the second mounting seat comprises a second base and a second guide rail which is arranged on the second base and extends along a second direction, the second base is arranged on the first guide rail in a sliding manner, and the power assembly can drive the second mounting seat to reciprocate along the first guide rail;

the third mounting seat comprises a third base, a third guide rail and a cushion block, wherein the third guide rail and the cushion block are arranged on the third base;

the stator mounting part is arranged on the third guide rail and can reciprocate along the third direction on the upper surface, and the stator mounting part is used for connecting a stator;

the first direction is the axis direction of the rotor, the second direction is the horizontal direction perpendicular to the first direction, and the third direction is perpendicular to the second direction and inclined to the first direction.

In one embodiment, the power assembly comprises a power piece and a first ball screw pair, the power piece is fixedly connected with the first base, the first ball screw pair comprises a first screw and a first nut, the output end of the power piece is fixedly connected with one end of the first screw, and the first nut is fixedly connected with the second base of the second mounting seat.

In one embodiment, the number of the first guide rails is two, and the first guide rails are respectively arranged on two sides of the first screw rod.

In one embodiment, the second mount further comprises a lateral adjustment device disposed on the second base; the transverse adjusting device comprises a first hand wheel, a first speed reducer and a second ball screw pair, the first speed reducer is fixedly connected with a second base of the second mounting seat, the second ball screw pair comprises a second screw and a second nut, the first hand wheel is connected with the second screw through the first speed reducer, and the second nut is fixedly connected with the third mounting seat.

In one embodiment, the number of the first guide rails is two, the number of the second guide rails is two, the two guide rails are respectively arranged on two sides of the second lead screw, and the sliding cushion block is arranged on the second guide rails close to one side of the stator.

In one embodiment, the third mounting seat further comprises a height adjusting device arranged on the third base, the height adjusting device comprises a second hand wheel, a second speed reducer and a third ball screw pair, the second speed reducer is fixedly connected with the third base, the third ball screw pair comprises a third screw and a third nut, the second hand wheel is connected with the third screw through the second speed reducer, and the third nut is fixedly connected with the stator mounting part.

In one embodiment, the stator pulling apparatus further comprises a control system, the first mount includes at least one limit switch disposed on the first base, the limit switch is communicatively connected to the control system, and the control system is connected to the power assembly.

In one embodiment, the pad is detachably connected with the slider on the second guide rail; alternatively, the pad is slidably disposed on the slider on the second rail along the first direction.

In one embodiment, the stator mounting part comprises a base, a longitudinal beam, an oblique pull beam and an adjusting rod, wherein the base is in sliding connection with the upper surface through a third guide rail, the longitudinal beam comprises a lower end and an upper end, the oblique pull beam comprises a first end and a second end, the second end is positioned above the first end, the lower end and the first end are both in rotational connection with the base, and one side of the upper end, which is away from the oblique pull beam, is used for being fixedly connected with the stator; the cable-stayed beam is inclined to a direction away from the longitudinal beam from the second end to the first end;

one end of the adjusting rod is rotationally connected with the second end, the other end of the adjusting rod is rotationally connected with the upper end, and the length of the adjusting rod is adjustable.

In one embodiment, the adjusting rod comprises a cross rod, a threaded sleeve and a bolt, the cross rod is rotationally connected with the upper end, the bolt is rotationally connected with the second end, the threaded sleeve is fixedly connected with the cross rod, the part of the bolt, which is away from the second end, is in threaded connection with the threaded sleeve, and the extending directions of the bolt and the threaded sleeve are the same as the length direction of the oblique pull beam.

The stator drawing-through device comprises: the first mount pad, second mount pad, third mount pad and stator installation department, first mount pad can make stator installation department be close to or keep away from the rotor, and the second mount pad then can adjust the radial deviation of stator installation department relative rotor level to align with the rotor in the horizontal radial direction, and the third mount pad can follow the inclined plane motion of second mount pad, thereby control the height of stator, conveniently align with the rotor in the direction of height. The stator drawing-through equipment provided by the utility model can adjust the position of the stator relative to the rotor in space, and the whole device can be installed on the ground, so that the risk that the center of gravity of the stator is unstable and collides with the rotor in the drawing-through process by using a crane and the like is avoided, the device only needs to control the movement of the stator in three directions, and the device is simple to operate, time-saving and labor-saving and low in safety risk.

Drawings

Fig. 1 is a schematic structural view of an apparatus according to one embodiment of the present utility model.

Fig. 2 is a schematic structural diagram of the first mounting seat in the embodiment of fig. 1.

Fig. 3 is a schematic structural diagram of the second mount and the third mount in the embodiment of fig. 1.

Fig. 4 is a schematic structural view of the stator mounting portion in the embodiment of fig. 1.

Reference numerals: a stator 10; a rotor 20; a gap 30; a first mount 100; a first rail 110; a power member 120; a first lead screw 130; a first nut 140; a stopper 150; a positioning block 160; a second mount 200; a second rail 210; a pad 220; a first hand wheel 230; a first decelerator 240; a second lead screw 250; a second nut 260; a third mount 300; a second hand wheel 310; a second decelerator 320; a third lead screw 330; a third nut 340; a stator mounting portion 400; a base 410; a stringer 420; a diagonal draw bar 430; an adjusting lever 440; a cross bar 441; a threaded sleeve 442; and a bolt 443.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1 to 4, the present utility model provides a stator pulling apparatus for pulling out or pulling back a stator 10 from a rotor 20 into the stator 10, which mainly comprises: the first mount 100, the second mount 200, the third mount 300, and the stator mount 400. Wherein the first mount 100 includes a first base, a first rail 110, and a power assembly, wherein the first base has the first rail 110 and the power assembly mounted thereon, which extend in a first direction; the second mounting seat 200 includes a second base and second guide rails 210, wherein two second guide rails 210 installed on the second base extend along a second direction, the two second guide rails 210 are arranged at intervals along a first direction, and the power assembly can drive the second mounting seat 200 to reciprocate along the first guide rail 110. The two ends of the third mount 300 are respectively connected with the two second guide rails 210, and the third mount 300 can reciprocate along the second guide rails 210, referring to fig. 3, wherein a cushion block 220 is arranged between the second guide rail 210 close to the stator 10 and the third mount 300, so that the upper surface of the third mount 300 is inclined, and the second guide rail 210 close to the stator 10 and the third mount 300 are both connected with the cushion block 220, so that the third mount 300 is inclined relative to the first direction; the stator mounting part 400 can reciprocate on the upper surface of the third mounting seat 300 along the third direction, and the stator mounting part 400 is used for connecting the stator 10; the first direction is an axial direction of the rotor 20, and is a horizontal direction, the second direction is a horizontal direction perpendicular to the first direction, and the third direction is perpendicular to the second direction and is inclined to the first direction. With reference to the second mount 200 and the third mount 300 shown in fig. 3, the first direction is the width direction of the second mount 200, the second direction is the length direction of the second mount 200, the third direction can be regarded as a vector sum of the first direction and the vertical direction, and the steeper the upper surface of the third mount 300, the smaller the included angle between the third direction and the vertical direction, and vice versa.

Specifically, in the above embodiment, the power assembly is used to drive the first mount 100 to move along the axial direction of the rotor 20, so that the stator 10 on the stator mounting portion 400 approaches or departs from the rotor 20, and the movement of the third mount 300 along the second guide rail 210 can adjust the position of the stator 10 relative to the rotor 20 in the horizontal radial direction of the rotor 20, so as to prevent the stator 10 from colliding with the rotor 20 during the drawing-through process in the horizontal direction. The movement of the stator mounting part 400 on the inclined upper surface of the third mount 300 can adjust the position of the stator 10 with respect to the rotor 20 in the vertical direction, preventing the stator 10 from colliding with the rotor 20 during the drawing-through in the vertical direction. Therefore, the stator drawing-through equipment provided by the utility model can adjust the position of the stator 10 relative to the rotor 20 in space, and the whole device can be installed on the ground, so that the risk that the center of gravity of the stator 10 is unstable and collides with the rotor 20 in the drawing-through process by using a crane and the like is avoided, the device only needs to control the movement of the stator 10 in three directions, and the device is simple to operate, saves time and labor and has low safety risk.

The stator pulling-through device provided by the embodiment of the utility model can be applied to any equipment, including but not limited to an exciter, under the condition that the stator needs to be pulled through. In the following, the description of the utility model and the figures will be described by way of example with respect to an exciter.

Alternatively, the spacer 220 may be detachable, so that the spacer 220 with different heights may be used to support one end of the third mount 300, so that the gradient of the upper surface of the third mount 300 may be changed, so that the displacement amount of the stator mounting part 400 moving along the first direction is the same, but the displacement amount of the stator mounting part moving along the vertical direction is different, thereby making the apparatus provided by the present utility model have a wider application range and adapt to different stators.

The pad 200 may specifically be detachably connected to the slider on the second rail 210 by a snap-fit, a screw-lock, or a direct insertion along a vertical direction.

Alternatively, in another embodiment, the pad 220 may be configured to slide on a slider on the second rail 210 along the first direction relative to the third mount 300, and also to adjust the angle of the third mount 300.

Referring to fig. 2, in one embodiment, the power assembly includes a power member 120 and a first ball screw pair, where the power member 120 is fixedly connected with the first mount 100, such as with an end far away from the stator 10, the first ball screw pair includes a first screw 130 and a first nut 140, an output end of the power member 120 is fixedly connected with an end of the first screw 130, and the first nut 140 is fixedly connected with the second mount 200.

Specifically, the second mounting seat 200 is not only slidably connected with the first guide rail 110, but also the second mounting seat 200 is fixedly connected with the first nut 140, such as welded or connected through a ball structure, and the driving of the power member 120 to the first mounting seat 100 is implemented through a ball screw pair, which can be understood that the power member 120 may be a motor or other output device capable of rotating the first screw 130.

Preferably, referring to fig. 2, the positioning block 160 is mounted at the front end of the first mounting seat 100, and by positioning between the positioning block 160 and the base of the rotor 20, when the positioning block 160 is inserted into a corresponding notch in the base of the rotor 20, it is explained that the axis of the first lead screw 130 is already parallel to the axis of the stator 10 when the first mounting seat 100 is mounted. When the ground has steps or is uneven, the corresponding position of the first mounting seat 100 can be provided with feet to support the first mounting seat 100 in an auxiliary manner.

When the apparatus is moved onto the ground or support in front of the rotor 20, the apparatus may be secured to the ground or support, such as by bolting or pinning, to stabilize the apparatus.

Preferably, the two first guide rails 110 are located at two sides of the first screw 130, and the three are arranged in parallel. Similarly, two second guide rails 210 are disposed on two sides of the second screw 250, and the three are disposed in parallel. This maximizes the distance between the two rails with the present apparatus unchanged in size, thereby greatly reducing the probability of the center of gravity of the components carried on the first rail 110 and the second rail 210 from deviating from the outside of the rails, and reducing the risk of rollover.

Referring to fig. 3, in one embodiment, the second mount 200 is provided with a lateral adjustment device; the lateral adjustment device includes a first hand wheel 230, a first speed reducer 240, and a second ball screw web, wherein the first speed reducer 240 is a speed reducer of the prior art, such as a worm gear combination. The first speed reducer 240 is fixedly connected with the second mounting seat 200, the second ball screw pair comprises a second screw 250 and a second nut 260, the first hand wheel 230 is connected with the second screw 250 through the first speed reducer 240, the second nut 260 is fixedly connected with the third mounting seat 300, and it can be understood that the connection mode can be welding or ball head structure connection. Because the position deviation of the stator 10 and the rotor 20 in the horizontal direction is smaller, the precision is higher, so the movement speed of the stator 10 in the second direction can be slower by rotating the first hand wheel 230 and by the action of the first speed reducer 240, the adjustment is safer and more accurate, and the device adopts a classical linear movement-rotation conversion mechanical structure by using the ball screw pair, so that the device has low economic cost and high efficiency.

In one embodiment, the third mounting seat 300 is provided with a height adjusting device, the height adjusting device comprises a second hand wheel 310, a second speed reducer 320 and a third ball screw frame which are sequentially connected, a housing of the second speed reducer 320 is fixedly connected with the third mounting seat 300, the third ball screw pair comprises a third screw 330 and a third nut 340, the second hand wheel 310 is connected with the third screw 330 through the second speed reducer 320, and the third nut 340 is fixedly connected with the stator mounting portion 400. The second decelerator 320 and the first decelerator 240 are identical in structure or different types of decelerator are used. The same structure as the second mount 200 described above is also to provide fine adjustment of the stator 10 in height, preventing excessive misalignment from causing misalignment with the rotor 20 for a long period of time, and avoiding excessive time waste in alignment.

Preferably, the first decelerator 240 and the second decelerator 320 are worm gear combined decelerator, and have a self-locking function, so that the third mount 300 and the stator mount 400 are maintained at a desired position to prevent the stator 10 from being moved in the reverse direction by gravity, thereby causing damage to equipment and injury to workers.

The third guide rail has two same spatial relationships as the first guide rail 110, the first guide screw 130, the second guide rail 210 and the second guide screw 250, and is disposed on both sides of the third guide screw 330 in parallel.

Referring to fig. 2, in one embodiment, at least one limit switch is disposed on the first base of the first mount 100, and after the second mount 200 moves to a specific position along the first direction, the second mount 200 is stopped and maintained at the specific position directly or at intervals by the limit switch.

In an alternative embodiment, the limit switch is a mechanical limit piece 150, such as two limit pieces 150 shown in fig. 2, where the two limit pieces 150 overlap the second mount 200 along the second direction, and as can be seen in fig. 2, the limit pieces 150 are disposed in a middle area of the width of the second mount 200, and the two limit pieces 150 are disposed opposite to each other along the first direction; the limiter 150 is configured to have a first state and a second state: in the first state, the upper surface of the stopper 150 is higher than the lower surface of the second mount 200; in the second state, the upper surface of the stopper 150 is lower than the lower surface of the second mount 200.

Preferably, in one embodiment, the limiting member 150 includes a fixing portion fixedly installed with the first mounting seat 100 and a rotating portion rotatably connected with the fixing portion such that an upper surface of the rotating portion is higher or lower than a lower surface of the second mounting seat 200.

Specifically, the stopper 150 is similar to a ground lock of a real parking space, and the rotating part of the stopper 150 is rotated to be perpendicular to the ground, thereby blocking the movement of the second mount 200 on the first guide rail 110, so that the second mount 200 is prevented from being excessively displaced, thereby causing the second mount 200 to be separated from the guide rail, thereby causing damage to the apparatus and the stator 10.

In other embodiments, a limiting member 150 that can be opened or closed manually may be disposed at both ends of the first rail 110, so as to prevent the second mounting seat 200 from being separated from the rail.

Of course, the limiting member 150 may also be engaged with the first mounting seat 100, for example, the limiting member 150 is a protruding block, and the second mounting seat 200 may be blocked from moving by engaging the limiting member 150 with the first mounting seat 100, so that the limiting member 150 may be removed when the second mounting seat 200 is required to pass over the position of the limiting member 150.

In the present utility model, two limiting members 150 are provided to limit the displacement of the second mount 200 on the first rail 110.

In an alternative embodiment, the limit switch is a mechanically-starting electronic structure, the limit switch is disposed on the opposite base, in a normal state, the elastic sheet of the limit switch can be in a free state and cannot trigger the internal chip, and when the second mounting seat 200 moves along the first direction and reaches a specific position, the elastic sheet of the limit switch is mechanically triggered, and the elastic sheet triggers the internal chip to send a stop signal. Of course, at this time, the stator pulling apparatus further includes a control system, the limit switch is communicatively connected to the control system, and the control system is connected to the power assembly. And after the control system receives the stop signal, controlling the power assembly to stop driving.

After the stator 10 is drawn out, one end of the stator 10 is supported by the drawing-through device, and the other end is only affected by gravity, the stator 10 is easy to incline, i.e. the axis of the stator 10 forms a certain included angle with the horizontal plane, thereby affecting the drawing-through of the stator 10. When the stator 10 is drawn through, when the height deviation between the front end of the stator 10 and the accommodating cavity of the rotor 20 is found, it is indicated that the elevation angle is generated between the stator 10 and the ground, and at this time, a great amount of manpower and material resources are consumed for adjusting the stator 10.

Therefore, referring to fig. 4, the stator 10 installation part of the present utility model includes a base 410, a longitudinal beam 420, a diagonal beam 430 and an adjusting rod 440, wherein the base 410 is slidably connected with the upper surface of the third installation seat 300 along a third direction, the longitudinal beam 420 includes a lower end and an upper end, the diagonal beam 430 includes a first end and a second end, the second end is located above the first end, the lower end and the first end are both rotationally connected with the base 410, the axis direction of rotation is horizontal, and one side of the upper end away from the diagonal beam 430 is used for fixedly connecting with the stator 10; from the second end to the first end, the diagonal draw beams 430 are inclined away from the longitudinal beams 420, i.e., the longitudinal beams 420, the diagonal draw beams 430 and the base 410 generally form a triangular stable structure; the length of the adjustment lever 440 is adjustable; the inclination direction of the adjusting lever 440 is the same as the length direction of the diagonal beam 430, one end of the adjusting lever 440 is rotatably connected with the second end, and the other end is rotatably connected with the upper end. When the stator 10 is pulled through, when the height deviation between the front end of the stator 10 and the accommodating cavity of the rotor 20 is found, it is indicated that the elevation angle is generated between the stator 10 and the ground, at this time, the length of the adjusting rod 440 on the oblique pull beam 430 is shortened, and the longitudinal beam 420 rotates in a direction away from the stator 10, so that one end of the stator 10 close to or located inside the rotor 20 is lifted up until the axial direction of the stator 10 is parallel to or even coincides with the axial direction of the rotor 20, thereby completing the subsequent pulling-through work; conversely, when the adjusting lever 440 is adjusted to extend its length, one end of the stator 10 located inside the rotor 20 can be rotated downward.

Specifically, referring to fig. 1, the adjusting rod 440 has a T-shaped structure integrally, and includes a cross bar 441, a threaded sleeve 442 and a bolt 443, wherein the threaded sleeve 442 is fixedly connected with the cross bar 441 to form a T-shaped structure, the cross bar 441 is rotationally connected with the longitudinal beam 420, the bolt 443 is in threaded fit with the threaded sleeve 442, and one end of the bolt 443, which is far away from the threaded sleeve 442, passes through the diagonal beam 430 and is limited by a blocking member such as a nut, and is rotationally connected with the diagonal beam 430. In use, the length of the bolt 443 in the nut 442 can be adjusted by simply rotating the bolt 420 or the nut, thereby adjusting the angle of the side member 420 relative to the ground.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A stator pull-through apparatus, comprising:

a first mount (100), the first mount (100) comprising a first base, a first rail (110) disposed on the first base extending along a first direction, and a power assembly;

the second mounting seat (200) comprises a second base and a second guide rail (210) which is arranged on the second base and extends along a second direction, the second base is arranged on the first guide rail in a sliding manner, and the power assembly can drive the second mounting seat (200) to reciprocate along the first guide rail (110);

the third mounting seat (300) comprises a third base, a third guide rail and a cushion block (220), wherein the third guide rail and the cushion block (220) are arranged on the third base, the second guide rail (210) close to a stator (10) and the third mounting seat (300) are provided with the cushion block (220) therebetween, so that the upper surface of the third mounting seat (300) is inclined, and the third base and the cushion block (220) can reciprocate along the second guide rail (210);

a stator mounting portion (400), wherein the stator mounting portion (400) is arranged on the third guide rail and can reciprocate on the upper surface along a third direction, and the stator mounting portion (400) is used for connecting a stator (10);

wherein the first direction is an axial direction of the rotor (20), the second direction is a horizontal direction perpendicular to the first direction, and the third direction is perpendicular to the second direction and inclined to the first direction.

2. The stator pulling apparatus according to claim 1, wherein the power assembly includes a power member (120) and a first ball screw pair, the power member (120) is fixedly connected with the first base, the first ball screw pair includes a first screw (130) and a first nut (140), an output end of the power member (120) is fixedly connected with one end of the first screw (130), and the first nut (140) is fixedly connected with the second base of the second mount (200).

3. The stator drawing-through device according to claim 2, wherein the number of the first guide rails (110) is two, and the two guide rails are respectively arranged at two sides of the first screw rod (130).

4. The stator pulling apparatus of claim 1, wherein the second mount (200) further comprises a lateral adjustment device disposed on the second base; the transverse adjusting device comprises a first hand wheel (230), a first speed reducer (240) and a second ball screw pair, wherein the first speed reducer (240) is fixedly connected with a second base of the second mounting seat (200), the second ball screw pair comprises a second screw (250) and a second nut (260), the first hand wheel (230) is connected with the second screw (250) through the first speed reducer (240), and the second nut (260) is fixedly connected with the third mounting seat (300).

5. The stator pulling apparatus according to claim 4, wherein the number of the first guide rails (110) is two, the number of the second guide rails (210) is two, the two guide rails are respectively arranged at two sides of the second screw rod (250), and the cushion block (220) is arranged on the second guide rails (210) close to one side of the stator (10).

6. The stator pulling apparatus according to claim 1, wherein the third mounting base (300) further includes a height adjusting device disposed on the third base, the height adjusting device includes a second hand wheel (310), a second speed reducer (320) and a third ball screw pair, the second speed reducer (320) is fixedly connected with the third base, the third ball screw pair includes a third screw (330) and a third nut (340), the second hand wheel (310) is connected with the third screw (330) through the second speed reducer (320), and the third nut (340) is fixedly connected with the stator mounting portion (400).

7. The stator pulling apparatus of any one of claims 1 to 6, further comprising a control system, the first mount (100) including at least one limit switch disposed on the first base, the limit switch communicatively connected to the control system, the control system connected to the power assembly.

8. The stator drawing-through device according to any one of claims 1 to 6, characterized in that the pad (220) is detachably connected with a slider on the second rail (210); alternatively, the pad (220) is slidably disposed on a slider on the second rail (210) along the first direction.

9. The stator drawing-through device according to any one of claims 1 to 6, characterized in that the stator mounting portion (400) comprises a base (410), a longitudinal beam (420), a diagonal beam (430) and an adjusting rod (440), the base (410) is slidably connected with the upper surface through the third guide rail, the longitudinal beam (420) comprises a lower end and an upper end, the diagonal beam (430) comprises a first end and a second end, the second end is located above the first end, the lower end and the first end are both rotatably connected with the base (410), and a side of the upper end facing away from the diagonal beam (430) is used for being fixedly connected with the stator (10); from the second end to the first end, the cable-stayed beam (430) is inclined in a direction away from the longitudinal beam (420);

one end of the adjusting rod (440) is connected with the second end, and the other end is connected with the upper end; the length of the adjusting rod (440) is adjustable.

10. The stator pulling apparatus as defined in claim 9 wherein the adjustment rod (440) includes a cross bar (441), a sleeve (442) and a bolt (443), the cross bar (441) is rotatably connected to the upper end, the bolt (443) is rotatably connected to the second end, the sleeve (442) is fixedly connected to the cross bar (441), a portion of the bolt (443) facing away from the second end is in threaded connection with the sleeve (442), and an extending direction of the bolt (443) and the sleeve (442) is the same as a length direction of the diagonal beam (430).