Generator rotor centering device

Abstract

The utility model relates to the technical field of generator rotor centering, in particular to a generator rotor centering device which comprises a fixing seat, a supporting seat, a connecting part and an adjusting part, and the connecting part is connected with the fixing seat and the supporting seat; the adjusting part is arranged on the connecting part; and an arc-shaped groove is formed in the supporting seat. The fixing seat is fixed on the generator connecting frame, the supporting seat is placed below the rotating shaft of the generator rotor, the rotating shaft of the generator rotor is placed in the arc-shaped groove, the distance between the fixing seat and the supporting seat is adjusted through the adjusting part, and lifting and descending of the generator rotor are achieved. And meanwhile, the rotating shaft in the arc-shaped groove can realize the smooth movement of the generator rotor in the axial direction, so that the problem that the axial movement of the rotor is inconvenient to adjust by a jack is solved. The generator rotor centering device can replace a crane for hoisting, is simple in structure and low in manufacturing cost, can be produced in batches, and solves the problems that the crane is low in precision, low in centering efficiency, high in labor hour consumption and not beneficial to batch production.

Description

Technical Field

[0001] The present application relates to the technical field of generator rotor centering, and in particular to a generator rotor centering device. Background Art

[0002] The diesel engine and generator are installed on the subframe to form a diesel generator set, which is called the power system on the mine car. It can be hoisted onto the mine car as a whole. The generator used in the mine car is generally a single-support motor, and the bearingless side needs to be installed on the engine. The installation and alignment of the engine and generator require high standards.

[0003] The rotor installation of a diesel generator set refers to the installation of the engine flywheel and the generator rotor through a disc coupling. The axial and radial clearances between the two will directly affect the stability and overall performance of the power system, and will also involve safety issues during operation, so they must be adjusted axially and radially respectively.

[0004] Axial alignment generally uses a jack, while radial alignment generally uses a crane. The jack method uses a jack to support the rotor, but since the jack is a point support, it is difficult to axially move the rotor to the front and rear extreme positions; the crane method uses a crane to lift the generator for alignment. The crane has low accuracy, so the alignment efficiency is low, the labor time consumption is high, and it is not conducive to mass production. Utility Model Content

[0005] The present application aims to solve at least one of the technical problems existing in the prior art or related art.

[0006] To this end, the present application provides a generator rotor centering device, wherein a fixing seat is fixed on a generator connecting frame, a support seat is placed under the rotating shaft of the generator rotor, and the rotating shaft of the generator rotor is placed in an arc groove. The distance between the fixing seat and the support seat is adjusted by an adjustment part to achieve the lifting and lowering of the generator rotor. At the same time, the rotating shaft in the arc groove can achieve smooth axial stringing of the generator rotor, solving the problem of the inconvenience of adjusting the axial stringing of the rotor by a jack. The generator rotor centering device can replace crane hoisting, has a simple structure, low manufacturing cost, and can be mass-produced, solving the problems of low crane precision, low centering efficiency, high labor consumption, and inconvenience for mass production.

[0007] A generator rotor centering device provided according to an embodiment of the present application includes: a fixed seat, a support seat, a connecting portion and an adjusting portion, wherein the connecting portion connects the fixed seat and the support seat respectively; the adjusting portion is arranged on the connecting portion; an arc groove is arranged on the support seat; the fixed seat is used to fix the generator rotor centering device on the generator connecting frame; the support seat is used to support the rotating shaft of the generator rotor; the connecting portion is used to connect the fixed seat and the supporting seat; the adjusting portion is used to adjust the distance between the fixed seat and the supporting seat; and the arc groove is used to place the rotating shaft of the generator rotor.

[0008] Optionally, the connecting part is a connecting rod and the adjusting part is a nut; one end of the connecting rod is connected to the fixing seat, and the other end is connected to the supporting seat; a thread is provided at the connection between the connecting rod and the supporting seat, and the nut is arranged on the thread.

[0009] Optionally, the connecting part is a connecting rod and the adjusting part is a nut; one end of the connecting rod is connected to the fixing seat, and the other end is connected to the supporting seat; a thread is provided at the connection between the connecting rod and the fixing seat, and the nut is arranged on the thread.

[0010] Optionally, the connecting part is a connecting rod and the adjusting part is a nut; one end of the connecting rod is connected to the fixing seat and the other end is connected to the supporting seat; the connection between the connecting rod and the fixing seat and the supporting seat is respectively provided with threads, and the nut is set on the threads.

[0011] Optionally, the fixing seat includes: a first fixing plate and a second fixing plate, and the first fixing plate and the second fixing plate form a sandwich structure.

[0012] Optionally, the support seat includes: a first support plate and a second support plate, the first support plate and the second support plate form a sandwich structure; the first support plate and the second support plate are respectively provided with an arc groove, and the two arc grooves form a circle.

[0013] Optionally, an adjustment slot is provided on the fixing seat.

[0014] Optionally, the support seat and the connecting part are ropes, both ends of the rope are arranged on the fixed seat, and the middle part of the rope forms an arc groove.

[0015] Optionally, the connecting part is two connecting rods and the adjusting part is a sleeve; one end of the two connecting rods is respectively connected to the fixing seat and the supporting seat, and the other ends of the two connecting rods are respectively connected to the two ends of the sleeve, and a thread is provided at the connection between the sleeve and the two connecting rods.

[0016] Optionally, the connecting portion and the adjusting portion are telescopic rod structures.

[0017] One of the above technical solutions has at least the following advantages or beneficial effects:

[0018] A generator rotor centering device provided in an embodiment of the present application includes: a fixing seat, a support seat, a connecting portion and an adjusting portion, wherein the connecting portion connects the fixing seat and the support seat respectively; the adjusting portion is arranged on the connecting portion; and an arc groove is arranged on the support seat. The fixing seat is fixed on the generator connecting frame, the support seat is placed under the rotating shaft of the generator rotor, the rotating shaft of the generator rotor is placed in the arc groove, and the distance between the fixing seat and the supporting seat is adjusted by the adjusting portion to realize the lifting and lowering of the generator rotor. At the same time, the rotating shaft in the arc groove can realize the smooth axial movement of the generator rotor, which solves the problem of the inconvenience of adjusting the axial movement of the rotor by the jack. The generator rotor centering device can replace the crane hoisting, has a simple structure, low manufacturing cost, and can be mass-produced, which solves the problems of low crane precision, low centering efficiency, high labor consumption, and inconvenience for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 A schematic structural diagram of a generator rotor centering device provided in an embodiment of the present application is shown;

[0021] Figure 2 A front view of a generator rotor centering device provided in an embodiment of the present application is shown;

[0022] Figure 3 A top view of a generator rotor centering device provided in an embodiment of the present application is shown;

[0023] Figure 4 A side view of a generator rotor centering device provided in an embodiment of the present application is shown;

[0024] Figure 5 A second structural schematic diagram of a generator rotor centering device provided in an embodiment of the present application is shown;

[0025] Figure 6 A third structural schematic diagram of a generator rotor centering device provided in an embodiment of the present application is shown;

[0026] Figure 7 A fourth structural schematic diagram of a generator rotor centering device provided in an embodiment of the present application is shown;

[0027] Figure 8 A fifth structural schematic diagram of a generator rotor centering device provided in an embodiment of the present application is shown;

[0028] Fig. 9 A sixth structural schematic diagram of a generator rotor centering device provided in an embodiment of the present application is shown;

[0029] Fig.10 A seventh structural schematic diagram of a generator rotor centering device provided in an embodiment of the present application is shown;

[0030] Fig.11 A schematic diagram of the structure of a generator rotor provided by an embodiment of the present application when there is string momentum is shown;

[0031] Fig.12 A schematic diagram of the structure of the generator rotor provided in an embodiment of the present application when axial alignment is completed is shown;

[0032] Fig.13 A schematic diagram showing a jack method to complete axial alignment;

[0033] Fig.14 A schematic diagram showing radial alignment by crane is shown;

[0034] Fig.15 A schematic diagram of a generator rotor centering device provided by an embodiment of the present application during operation is shown.

[0035] [Description of Reference Numerals]

[0036] 1. Fixed seat, 11. First fixed plate, 12. Second fixed plate, 13. Adjustment groove, 2. Support seat, 21. Arc groove, 22. First support plate, 23. Second support plate, 3. Connecting part, 4. Adjustment part, 5. Generator center, 6. Rotor center. DETAILED DESCRIPTION

[0037] In order to better explain the present application and facilitate understanding, the present application is described in detail below in conjunction with the accompanying drawings through specific implementation methods. Figure 1 and Figure 3 The orientation of is used as a reference. The position of the fixing base 1 relative to the supporting base 2 is defined as "upper"; the position of the adjusting slot 13 relative to the edge of the fixing base 1 is defined as "inner".

[0038] As mentioned above, the axial alignment of the diesel generator rotor means that the rotor of the generator has a certain amount of axial momentum, such as Fig.11 As shown, there is a deviation between the generator center 5 and the rotor center 6. Before installing the generator, the rotor must be axially aligned to the middle of the generator, as shown in Figure 1. Fig.12As shown in the figure, there is no deviation between the generator center 5 and the rotor center 6, that is, the axial alignment is completed. For the rotor of a single-support generator, since the input flange end, that is, the unsupported end, will sag due to gravity, the generator flange end must be lifted first to make the generator rotor shaft horizontal, and then the rotor is axially moved to the front and rear limit positions, and the axial depth dimension values ​​of the rotor flange and the housing are measured, and the average is taken as the axial alignment value. In the prior art, Fig.13 As shown in the figure, the method used to lift the flange end of the generator to make the rotating shaft of the generator rotor horizontal is to support it with a jack. However, since the rotating shaft of the generator rotor is supported by a jack, it is difficult to axially move the rotor to the front and rear limit positions because it is a point support.

[0039] The radial centering of the diesel generator rotor refers to the installation of the disc coupling of the generator rotor into the radial stop of the engine flywheel. Fig.14 As shown, the engine is first installed and fixed, and the generator is hoisted with a crane using an adjustable rope. The generator and the engine are slowly adjusted to match. The generator is moved to a certain position so that the mounting hole on the generator disc coupling is aligned with the guide pin on the flywheel and inserted. If there is interference, the adjustable rope is used to adjust the horizontality to ensure that the generator is smoothly placed in the flywheel guide pin. Finally, the stop of the disc coupling is connected to the stop of the flywheel. However, the crane is used to hoist the generator for alignment throughout the process. The crane has low accuracy, so the alignment efficiency is low, the labor time consumption is high, and it is not conducive to mass production.

[0040] In order to solve at least one of the technical problems existing in the prior art or related technology, the embodiment of the present application provides a generator rotor centering device, including: a fixed seat, a support seat, a connecting part and an adjusting part, wherein the connecting part connects the fixed seat and the support seat respectively; the adjusting part is arranged on the connecting part; and an arc groove is arranged on the support seat. The fixed seat is fixed on the generator connecting frame, the support seat is placed under the rotating shaft of the generator rotor, and the rotating shaft of the generator rotor is placed in the arc groove. The distance between the fixed seat and the support seat is adjusted by the adjusting part to realize the lifting and lowering of the generator rotor. At the same time, the rotating shaft in the arc groove can realize the smooth axial stringing of the generator rotor, which solves the problem of the inconvenience of adjusting the axial stringing of the rotor by the jack. The generator rotor centering device can replace the crane hoisting, has a simple structure, low manufacturing cost, and can be mass-produced, which solves the problems of low crane precision, low centering efficiency, high labor consumption, and inconvenience for mass production.

[0041] The following describes an engine hood support device according to some embodiments provided by the present application with reference to the accompanying drawings.

[0042] See also Figures 1 to 15, a generator rotor centering device provided in an embodiment of the present application comprises: a fixing seat 1, a supporting seat 2, a connecting portion 3 and an adjusting portion 4, wherein the connecting portion 3 connects the fixing seat 1 and the supporting seat 2 respectively; the adjusting portion 4 is arranged on the connecting portion 3; and an arc groove 21 is arranged on the supporting seat 2. The fixing seat 1 is used to fix the generator rotor centering device on the generator connecting frame; the supporting seat 2 is used to support the rotating shaft of the generator rotor; the connecting portion 3 is used to connect the fixing seat 1 and the supporting seat 2; the adjusting portion 4 is used to adjust the distance between the fixing seat 1 and the supporting seat 2 to realize the lifting and lowering of the generator rotor; the arc groove 21 is used to place the rotating shaft of the generator rotor. Generally, the rotating shaft is a cylinder. The arc design can better adapt to the shape of the rotating shaft, so that the rotating shaft moves more smoothly in the axial direction.

[0043] At work, if Fig.15 As shown, when axial alignment is required, the fixing seat 1 is fixed on the generator connecting frame, the supporting seat 2 is placed under the rotating shaft of the generator rotor, and the rotating shaft of the generator rotor is placed in the arc groove 21. The distance between the fixing seat 1 and the supporting seat 2 is adjusted by the adjusting part 4 to realize the lifting and lowering of the generator rotor. After the generator rotor is adjusted to a horizontal level, the rotor is axially moved to the front and rear limit positions, and the axial depth dimension values ​​of the rotor flange and the shell are measured. The average is taken as the axial alignment value to complete the axial alignment.

[0044] When radial alignment is required, the engine is first installed and fixed; the generator rotor alignment device is installed on the generator connecting frame, and the rotor is adjusted to a horizontal level through the adjustment part 4; the generator connecting frame and the engine flywheel housing are directly installed and tightened. At this time, if the generator disc coupling is not installed in the engine flywheel stop, the height of the rotor shaft can be adjusted through the adjustment part 4 until the generator disc coupling is installed in the engine flywheel stop, and finally the disc coupling stop is connected to the flywheel stop to complete the radial alignment.

[0045] Therefore, the generator rotor centering device can replace the crane rope and jack, and can complete the axial centering and radial centering of the generator rotor with one device, thereby improving mass production efficiency.

[0046] In an illustrative embodiment, Figure 5 As shown, the connecting part 3 is a connecting rod, and the adjusting part 4 is a nut; one end of the connecting rod is connected to the fixing seat 1, and the other end is connected to the supporting seat 2; a thread is provided at the connection between the connecting rod and the supporting seat 2, and the nut is arranged on the thread.

[0047] The number of connecting rods can be set to 2, and the 2 connecting rods are distributed on both sides of the rotating shaft of the generator rotor; a through hole is provided on the support seat 2, one end of the connecting rod is fixedly connected to the fixed seat 1, and the other end of the connecting rod passes through the through hole of the support seat 2, and the nut connects the support seat 2 with the connecting rod at the bottom of the support seat 2; the support seat 2 can be raised or lowered by adjusting the nut.

[0048] Furthermore, washers can be added to match the use of nuts. Washers are parts used to fill physical gaps and balance pressure. Their main function is to withstand and disperse the pressure between connectors to ensure the stable operation of equipment and machines. In mechanical assembly, since the contact surface of the nut may not actually be completely flat and regular, there will be some gaps. These gaps may lead to insufficient preload and affect the strength and fixing effect of the fastener. Adding washers can compensate for the unevenness and gaps of the nut contact surface and ensure the stability of the support seat 2.

[0049] In an illustrative embodiment, Figure 6 As shown, the connecting part 3 is a connecting rod, and the adjusting part 4 is a nut; one end of the connecting rod is connected to the fixing seat 1, and the other end is connected to the supporting seat 2; a thread is provided at the connection between the connecting rod and the fixing seat 1, and the nut is arranged on the thread.

[0050] The number of connecting rods can be set to 2, and the 2 connecting rods are distributed on both sides of the rotating shaft of the generator rotor; a through hole is provided on the fixed seat 1, one end of the connecting rod is fixedly connected to the support seat 2, and the other end of the connecting rod passes through the through hole of the fixed seat 1, and the nut connects the fixed seat 1 with the connecting rod above the fixed seat 1; the connecting rod can be raised or lowered by adjusting the nut, thereby driving the support seat 2 to rise or fall.

[0051] Furthermore, in order to cooperate with the use of the nut, a washer can be added, and its function is the same as in the above embodiment, which will not be repeated here.

[0052] In an illustrative embodiment, Figure 2 and Figure 4 As shown, the connecting part 3 is a connecting rod, and the adjusting part 4 is a nut; one end of the connecting rod is connected to the fixing seat 1, and the other end is connected to the supporting seat 2; the connecting parts of the connecting rod and the fixing seat 1 and the supporting seat 2 are respectively provided with threads, and the nuts are set on the threads.

[0053] The number of connecting rods can be set to 2, and the two connecting rods are distributed on both sides of the rotating shaft of the generator rotor; through holes are respectively provided on the fixing seat 1 and the supporting seat 2, one end of the connecting rod passes through the through hole of the fixing seat 1, and the other end of the connecting rod passes through the through hole of the supporting seat 2, and nuts are respectively connected to the fixing seat 1 and the supporting seat 2 above the fixing seat 1 and below the supporting seat 2; the supporting seat 2 can be raised or lowered by adjusting the nuts. In this way, the two connecting rods are detachably connected to the fixing seat 1 and the supporting seat 2, which is convenient for assembly and storage, and the nuts above and below can be adjusted, and the adjustment range is also larger.

[0054] Furthermore, in order to cooperate with the use of the nut, a washer can be added, and its function is the same as in the above embodiment, which will not be repeated here.

[0055] In an illustrative embodiment, Figure 7 As shown, the fixing seat 1 includes: a first fixing plate 11 and a second fixing plate 12, and the first fixing plate 11 and the second fixing plate 12 form a sandwich structure. The first fixing plate 11 and the second fixing plate 12 form a sandwich structure, which can be better fixed on the generator connecting frame, and can prevent the fixing seat 1 from sliding in the axial direction when axial alignment is performed.

[0056] In an illustrative embodiment, Figure 8 As shown, the support seat 2 includes: a first support plate 22 and a second support plate 23, the first support plate 22 and the second support plate 23 form a sandwich structure; the first support plate 22 and the second support plate 23 are respectively provided with an arc groove 21, and the two arc grooves 21 form a circle. The sandwich structure formed by the first support plate 22 and the second support plate 23 can better fix the shaft of the generator rotor, and can prevent the shaft from sliding during radial alignment. It can be understood that the two arc grooves 21 form a circle in order to better adapt to the shape of the shaft, which does not need to be an absolutely standard circle, but can also have a certain deviation or an ellipse.

[0057] In an illustrative embodiment, Figure 3 As shown, the fixing seat 1 is provided with an adjustment slot 13. The adjustment slot 13 is used to adjust the position of the connecting portion 3 so as to better adapt to the rotating shaft of the generator rotor.

[0058] In an illustrative embodiment, Fig. 9 As shown, the support seat 2 and the connecting part 3 are ropes, the two ends of the rope are arranged on the fixing seat 1, and the middle of the rope forms an arc groove 21. The rope can lift the rotating shaft of the generator rotor, and the adjusting part 4 can be set as a buckle, which is used to adjust the length of the rope left under the fixing seat 1, and the rotating shaft is driven to rise or fall by adjusting the length of the rope left. It can be understood that the adjusting part 4 can also be other ways to adjust the length of the rope left, such as tying a knot.

[0059] In an illustrative embodiment, Fig.10 As shown, the connecting part 3 is two connecting rods, and the adjusting part 4 is a sleeve; one end of the two connecting rods is connected to the fixing seat 1 and the supporting seat 2 respectively, and the other ends of the two connecting rods are connected to the two ends of the sleeve respectively, and the connection between the sleeve and the two connecting rods is provided with threads. The distance between the two connecting rods can be adjusted by rotating the sleeve, thereby driving the supporting seat 2 to rise or fall.

[0060] In an exemplary embodiment, the connecting portion 3 and the adjusting portion 4 are a telescopic rod structure. The telescopic rod structure generally includes multiple sections of rods, and the rods are connected by specific means, such as threaded connection, hook-tenon connection, or nested connection, to achieve relative sliding or telescopic movement, thereby changing the length of the entire telescopic rod. By changing the length of the telescopic rod, the support base 2 can be driven to rise or fall.

[0061] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of the present application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0062] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] In the present application, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0064] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0065] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A generator rotor centering device, characterized in that: include: A fixing seat (1), a supporting seat (2), a connecting portion (3) and an adjusting portion (4), wherein: The connecting portion (3) is respectively connected to the fixing seat (1) and the supporting seat (2); the adjusting portion (4) is arranged on the connecting portion (3); and an arc-shaped groove (21) is arranged on the supporting seat (2); The fixing seat (1) is used to fix the generator rotor centering device on the generator connecting frame; the supporting seat (2) is used to support the rotating shaft of the generator rotor; the connecting part (3) is used to connect the fixing seat (1) and the supporting seat (2); the adjusting part (4) is used to adjust the distance between the fixing seat (1) and the supporting seat (2); and the arc groove (21) is used to place the rotating shaft of the generator rotor.

2. A generator rotor centering device according to claim 1, characterized in that: The connecting part (3) is a connecting rod, and the adjusting part (4) is a nut; one end of the connecting rod is connected to the fixing seat (1), and the other end is connected to the supporting seat (2); a thread is provided at the connection between the connecting rod and the supporting seat (2), and the nut is arranged on the thread.

3. A generator rotor centering device according to claim 1, characterized in that: The connecting part (3) is a connecting rod, and the adjusting part (4) is a nut; one end of the connecting rod is connected to the fixing seat (1), and the other end is connected to the supporting seat (2); a thread is provided at the connection between the connecting rod and the fixing seat (1), and the nut is arranged on the thread.

4. A generator rotor centering device according to claim 1, characterized in that: The connecting part (3) is a connecting rod, and the adjusting part (4) is a nut; one end of the connecting rod is connected to the fixing seat (1), and the other end is connected to the supporting seat (2); the connecting rod is respectively provided with threads at the connection points with the fixing seat (1) and the supporting seat (2), and the nut is arranged on the threads.

5. A generator rotor centering device according to claim 1, characterized in that: The fixing seat (1) comprises a first fixing plate (11) and a second fixing plate (12), wherein the first fixing plate (11) and the second fixing plate (12) form a sandwich structure.

6. A generator rotor centering device according to claim 1, characterized in that: The support seat (2) comprises: a first support plate (22) and a second support plate (23), wherein the first support plate (22) and the second support plate (23) form a sandwich structure; the first support plate (22) and the second support plate (23) are respectively provided with an arc groove (21), and the two arc grooves (21) form a circle.

7. A generator rotor centering device according to claim 1, characterized in that: The fixing seat (1) is provided with an adjustment slot (13).

8. A generator rotor centering device according to claim 1, characterized in that: The support seat (2) and the connecting part (3) are ropes, both ends of the rope are arranged on the fixing seat (1), and an arc groove (21) is formed in the middle of the rope.

9. A generator rotor centering device according to claim 1, characterized in that: The connecting part (3) is two connecting rods, and the adjusting part (4) is a sleeve; one end of the two connecting rods is respectively connected to the fixing seat (1) and the supporting seat (2), and the other ends of the two connecting rods are respectively connected to the two ends of the sleeve, and the connection between the sleeve and the two connecting rods is provided with a thread.

10. A generator rotor centering device according to claim 1, characterized in that: The connecting part (3) and the adjusting part (4) are telescopic rod structures.

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