Phase modulator field disassembly and reassembly rotor tool

Abstract

The application discloses a phase modifier on-site dismounting and mounting rotor tool, which comprises a connecting assembly, a pulling assembly, an iron core support assembly, an excitation end bearing and a rotor support assembly, the connecting assembly comprises a lengthened shaft coaxially fixedly connected to a non-excitation end of the rotor and a fixing frame fixedly connected to an excitation end of the rotor; the pulling assembly comprises a first ground anchor and a second ground anchor arranged at two ends of a bottom plate respectively, a first cable is arranged between the first ground anchor and the lengthened shaft, a second cable is arranged between the second ground anchor and the fixing frame, and a hand-operated hoist is arranged on the first cable and the second cable; the iron core support assembly comprises a plurality of iron core supports which are sequentially and detachably connected in an axial direction; and the rotor support assembly comprises a first rotor support for providing support for the lengthened shaft, a second rotor support for providing support for the non-excitation end of the rotor and a third rotor support for providing support for the non-excitation end of the rotor. The application can manually dismount and mount the rotor on site without large hoisting equipment.

Description

Technical Field

[0001] This invention belongs to the field of synchronous condenser technology, and particularly relates to a tool for disassembling and assembling rotors on-site in a synchronous condenser. Background Technology

[0002] Under the "dual carbon" target, my country's power structure is undergoing significant changes. The proportion of synchronous power sources, mainly thermal power units, is declining, while new energy sources, primarily wind and solar power, are gradually becoming the dominant power source in terms of both capacity and output. However, the relatively poor grid connection characteristics of new energy sources cannot fully compensate for the role of synchronous power sources in grid stability. Furthermore, the new power system dominated by new energy sources suffers from problems such as insufficient system rotational inertia, grid overvoltage, and insufficient local short-circuit capacity.

[0003] To address the limitation of DC transmission power by transient overvoltages in the sending-end system, a large number of synchronous condenser units are required for the new energy sending-end system. However, new energy power generation stations such as wind farms and photovoltaic power generation collection stations are characterized by randomness, intermittency, and instability. New energy power generation stations need to be equipped with small synchronous condensers to meet grid requirements, and currently, distributed air-cooled synchronous condensers of 10Mvar to 100Mvar are mainly configured.

[0004] However, the application sites for this type of synchronous condenser are generally in poor conditions, with small factory spaces and no overhead cranes or lifting equipment, which makes traditional methods of lifting and disassembling rotors unsuitable. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, this invention provides a tool for on-site disassembly and assembly of rotors for synchronous condensers, enabling manual disassembly and assembly of rotors on-site when there is no overhead crane.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A tool for disassembling and assembling the rotor of a synchronous condenser, comprising:

[0008] The base plate has a stator with the end cover removed fixed to its upper end, and the upper surface of the base plate is horizontal.

[0009] The connecting assembly includes an extension shaft coaxially fixedly connected to the non-excitation end of the rotor and a fixing frame fixedly connected to the excitation end of the rotor.

[0010] The pull-out assembly includes a first ground anchor and a second ground anchor respectively set at both ends of the base plate. A first cable is set between the first ground anchor and the extension shaft, and a second cable is set between the second ground anchor and the fixed frame. A hand chain hoist is set on both the first cable and the second cable.

[0011] The core support assembly has its lower part placed on the inner circular surface of the stator, and its upper end surface is horizontal. The core support assembly includes several core supports that are detachably connected in sequence along the axial direction.

[0012] The excitation end bearing is installed at the excitation end of the rotor and is connected to the upper end of the base plate by a rolling frame.

[0013] A rotor support assembly, comprising a first rotor support for providing support for an extension shaft, a second rotor support for providing support for the non-excited end of the rotor, and a third rotor support for providing support for the non-excited end of the rotor.

[0014] The third rotor support is connected to the upper end of the base plate by rolling elements, the first rotor support is connected to the upper end of the core support assembly by rolling elements, the second rotor support is connected to the upper end of the core support assembly by rolling elements, and the third rotor support is connected to the upper end of the base plate by rolling elements.

[0015] The beneficial effects of adopting the above technical solution are as follows: the rotor can be disassembled and assembled by manually adjusting the hand-operated hoists, first rotor support, second rotor support, third rotor support, rolling elements, core support, and rolling frame on the first and second cables, which is beneficial for manual disassembly and assembly of the rotor on site without overhead cranes; pulling the hand-operated hoists on the first and second cables in different directions can restrict the movement of the rotor, so as to avoid excessive pulling of the rotor by the first or second cable, and can also limit the rotor; in addition, the core support assembly provides a rolling plane for the rolling elements at the lower end of the first and second rotor supports, so as to avoid stator wear caused by the first and second rotor supports rolling directly on the stator.

[0016] In one embodiment, the first rotor support is detachably connected to the extension shaft, and the second rotor support is detachably connected to the rotor.

[0017] The beneficial effects of adopting the above technical solution are as follows: This configuration allows the first rotor support and the second rotor support to be pre-installed at the corresponding positions on the extension shaft and the non-excitation end of the rotor, respectively. When the first rotor support or the second rotor support plays a supporting role, only the rolling elements and other necessary components need to be installed. This facilitates the rapid installation of the first rotor support and the second rotor support during the rotor insertion process.

[0018] In one embodiment, a limit block is provided on the base plate; when the third rotor support contacts the limit block, the first rotor support moves to one end of the core support assembly.

[0019] The beneficial effects of adopting the above technical solution are as follows: the limiting block can restrict the axial movement position of the third rotor support; when the third rotor support contacts the limiting block, it can be determined that the first rotor support has moved to one end of the core support assembly.

[0020] In one embodiment, as the first rotor support rolls to the other end of the core support assembly, the second rotor support moves to one end of the core support assembly.

[0021] The beneficial effects of adopting the above technical solution are as follows: This arrangement allows the first rotor support to roll to the other end of the core support assembly by relying on the rolling elements, and then the second rotor support can be replaced by rolling on the core support assembly by relying on the rolling elements, thereby facilitating the continued movement of the rotor.

[0022] In one embodiment, as the second rotor support rolls to the other end of the core support assembly, the third rotor support moves to the upper end of the base plate.

[0023] The beneficial effects of adopting the above technical solution are as follows: This arrangement allows the second rotor support to roll to the other end of the core support assembly by relying on the rolling elements, and then the third rotor support can be replaced and roll on the base plate by relying on the rolling elements, thereby facilitating the continued movement of the rotor.

[0024] In one embodiment, the rotor support assembly includes an adjusting shim for detachably connecting to the upper ends of a first rotor support, a second rotor support, and a third rotor support. The rotor support assembly also includes a square box and a shim, with the upper ends of the adjusting shim being detachably connected to the square box and the shim in sequence.

[0025] The beneficial effects of adopting the above technical solution are as follows: by installing adjusting shims of different thicknesses, the height of the shims can be adjusted, which helps the shims support the rotor or the components on the rotor, thereby helping to make the rotor level.

[0026] In one implementation, the shim is a V-shaped shim.

[0027] The beneficial effect of adopting the above technical solution is that this setting facilitates the fixing of the cylindrical shaft on the rotor.

[0028] In one embodiment, a pad assembly is included, the lower end face of which is attached to the inner circular surface of the stator, and the lower end face of the core support assembly is attached to the upper end face of the pad assembly.

[0029] In one embodiment, the pad assembly includes an insulating pad and a metal pad, the lower end face of the insulating pad being attached to the inner circular surface of the stator, the lower end face of the metal pad being attached to the upper end face of the insulating pad, and the lower end face of the core support assembly being attached to the upper end face of the metal pad.

[0030] In one embodiment, the rolling frame includes a rolling frame and a plurality of rollers rotatably connected to the rolling frame, the rollers being distributed along the rolling direction.

[0031] The beneficial effects of this invention are as follows:

[0032] The rotor can be disassembled and assembled by manually adjusting components such as the hand-operated hoists on the first and second cables, the first rotor support, the second rotor support, the third rotor support, the rolling elements, the core support, and the rolling frame. This facilitates manual disassembly and assembly of the rotor on-site when there is no overhead crane. Pulling the hand-operated hoists on the first and second cables in different directions can restrict the movement of the rotor, preventing the first or second cable from pulling the rotor excessively and providing a limiting effect on the rotor. In addition, the core support assembly provides a rolling surface for the rolling elements at the lower end of the first and second rotor supports, preventing stator wear caused by the first and second rotor supports rolling directly on the stator. Attached Figure Description

[0033] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0034] Figure 1 A schematic diagram of the structure of the present invention is shown;

[0035] Figure 2 This shows a schematic diagram of the structure when the third rotor support contacts the limiting block in this invention;

[0036] Figure 3 This shows a schematic diagram of the structure when the first rotor support moves to the edge of the core support assembly in this invention;

[0037] Figure 4 This shows a schematic diagram of the structure when the second rotor support moves to the edge of the core support assembly in this invention;

[0038] Figure 5 This shows a schematic diagram of the structure when the rotor is axially installed in place according to the present invention;

[0039] Figure 6 This shows a schematic diagram of the structure when the non-excitation end bearing is installed in this invention;

[0040] Figure 7 This shows a schematic diagram of the structure when the rolling frame is removed in this invention;

[0041] Figure 8 A schematic diagram of the core support assembly in this invention is shown;

[0042] Figure 9 A schematic diagram of the core support structure in this invention is shown;

[0043] Figure 10 A schematic diagram of the structure of the rolling frame in this invention is shown;

[0044] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0045] Figure label:

[0046] 1-First ground anchor, 2-First cable, 3-Base plate, 4-End cover, 5-Extension shaft, 6-First rotor support, 7-Second rotor support, 8-Third rotor support, 9-Rotor, 10-Excitation end bearing, 11-Fixed frame, 12-Second cable, 13-Second ground anchor, 14-Rolling frame, 1401-Rolling frame, 1402-Roller, 15-Limiting block, 16-Stator, 17-Core support, 18-Non-excitation end bearing. Detailed Implementation

[0047] The invention will now be further described with reference to the accompanying drawings.

[0048] This invention provides a tool for on-site disassembly and assembly of rotors in a synchronous condenser, such as... Figure 1 As shown, it includes:

[0049] The base plate 3 has a stator 16 with the end cover 4 removed fixed at its upper end, and the upper surface of the base plate 3 is a horizontal plane.

[0050] The connecting assembly includes an extension shaft 5 coaxially fixedly connected to the non-excitation end of the rotor 9 and a fixing frame 11 fixedly connected to the excitation end of the rotor 9.

[0051] The pull-out assembly includes a first ground anchor 1 and a second ground anchor 13 respectively set at both ends of the base plate 3. A first pull cable 2 is set between the first ground anchor 1 and the extension shaft 5, and a second pull cable 12 is set between the second ground anchor 13 and the fixed frame 11. A hand chain hoist is set on both the first pull cable 2 and the second pull cable 12.

[0052] When the lower part of the core support assembly is placed on the inner circular surface of the stator 16, such as... Figure 8 As shown, the upper surface of the core support assembly is horizontal, and the core support assembly includes several components that are bolted together sequentially along the axial direction, such as... Figure 9 The iron core support 17 shown;

[0053] The excitation end bearing 10 is installed at the excitation end of the rotor 9 and is rolled to the upper end of the base plate 3 through the rolling frame 14.

[0054] The rotor support assembly includes a first rotor support 6 for providing support for the extension shaft 5, a second rotor support 7 for providing support for the non-excitation end of the rotor 9, and a third rotor support 8 for providing support for the non-excitation end of the rotor 9.

[0055] Among them, such as Figure 1 As shown, the third rotor support 8 is rolled to the upper end of the base plate 3 via rolling elements, as... Figure 2 As shown, the first rotor support 6 is rolledly connected to the upper end of the core support assembly via rolling elements, as... Figure 3 As shown, the second rotor support 7 is rolledly connected to the upper end of the core support assembly via rolling elements, as... Figure 4 As shown, the third rotor support 8 is rolled to the upper end of the base plate 3 via rolling elements.

[0056] Understandably, the rotor 9 can be disassembled and assembled by manually adjusting components such as the hand chain hoist on the first cable 2 and the second cable 12, the first rotor support 6, the second rotor support 7, the third rotor support 8, the rolling elements, the core support, and the rolling frame 14. This facilitates manual disassembly and assembly of the rotor 9 on-site when there is no overhead crane. Pulling the hand chain hoist on the first cable 2 and the second cable 12 in different directions can restrict the movement of the rotor 9, thus preventing the first cable 2 or the second cable 12 from pulling the rotor 9 excessively and providing a limiting effect on the rotor 9. In addition, the core support assembly provides a rolling plane for the rolling elements at the lower end of the first rotor support 6 and the second rotor support 7, so as to prevent the stator 16 from being worn due to the first rotor support 6 and the second rotor support 7 rolling directly on the stator 16.

[0057] It should be noted that the first rotor support 6, the second rotor support 7 and the third rotor support 8 are welded from multiple steel plates and are equipped with handles for easy handling; the rolling element is a single cylinder that is easy to move in a small space; the extension shaft 5 and the fixed frame 11 are both equipped with pull ears to connect the first cable 2 and the second cable 12 respectively.

[0058] In one embodiment, the first rotor bracket 6 is attached to the extension shaft 5, and the second rotor bracket 7 is attached to the rotor 9.

[0059] Understandably, this setup allows the first rotor support 6 and the second rotor support 7 to be pre-installed at the corresponding positions on the extension shaft 5 and the non-excitation end of the rotor 9, respectively. When the first rotor support 6 or the second rotor support 7 plays a supporting role, only the rolling elements and other necessary components need to be installed. This facilitates the rapid installation of the first rotor support 6 and the second rotor support 7 during the insertion of the rotor 9.

[0060] In one embodiment, a limiting block 15 is provided on the base plate 3; when the third rotor support 8 contacts the limiting block 15, the first rotor support 6 moves to one end of the core support assembly.

[0061] It is understandable that the limiting block 15 can restrict the axial movement position of the third rotor support 8; when the third rotor support 8 contacts the limiting block 15, it can be determined that the first rotor support 6 has moved to one end of the core support assembly.

[0062] It should be noted that when the rotor 9 is axially installed in place, the rolling frame 14 contacts the limiting block 15, so that it is easy to determine whether the rotor 9 is axially installed in place by whether the rolling frame 14 contacts the limiting block 15.

[0063] In one embodiment, when the first rotor support 6 rolls to the other end of the core support assembly, the second rotor support 7 moves to one end of the core support assembly.

[0064] Understandably, this arrangement allows the first rotor support 6 to roll to the other end of the core support assembly via rolling elements, and then the second rotor support 7 to roll on the core support assembly via rolling elements, thus facilitating the continued movement of the rotor 9.

[0065] In one embodiment, as the second rotor support 7 rolls to the other end of the core support assembly, the third rotor support 8 moves to the upper end of the base plate 3.

[0066] Understandably, this arrangement allows the second rotor support 7 to roll to the other end of the core support assembly via rolling elements, then the third rotor support 8 can be replaced and roll on the base plate 3 via rolling elements, thus facilitating the continued movement of the rotor 9.

[0067] In one embodiment, the rotor support assembly includes adjusting shims for bolting to the upper ends of the first rotor support 6, the second rotor support 7, and the third rotor support 8. The rotor support assembly also includes a square box and a shim, with the upper ends of the adjusting shims being bolted to the square box and the shim in sequence.

[0068] It is understandable that by installing adjusting shims of different thicknesses, the height of the shims can be adjusted to help the shims support the rotor 9 or the components on the rotor 9, thereby helping to make the rotor 9 level.

[0069] In one embodiment, the shim is a V-shaped shim to facilitate fixing the cylindrical shaft on the rotor 9.

[0070] In one embodiment, a pad assembly is included, the lower end face of which is attached to the inner circular surface of the stator 16, and the lower end face of the core support assembly is attached to the upper end face of the pad assembly.

[0071] In one embodiment, the pad assembly includes an insulating pad and a metal pad, the lower end face of the insulating pad is attached to the inner circular surface of the stator 16, the lower end face of the metal pad is attached to the upper end face of the insulating pad, and the lower end face of the core support assembly is attached to the upper end face of the metal pad.

[0072] In one embodiment, such as Figure 10 As shown, the rolling frame 14 includes a rolling frame 1401 and a plurality of rollers 1402 rotatably connected to the rolling frame 1401, with the rollers 1402 distributed along the rolling direction.

[0073] It should be noted that the two ends of the roller 1402 are large cylinders, and the middle part of the roller 1402 is a small cylinder; multiple semi-circular holes are provided on one side of the roller frame 1401, and two roller frames 1401 are interlocked and form multiple circular holes for clamping the small cylinders at close proximity, thereby rotatably connecting multiple rollers 1402 to the roller frame 1401.

[0074] The process of inserting rotor 9 in this invention is as follows:

[0075] Pulling the first cable 2 onto the hand chain hoist causes pulling the second cable 12 onto the hand chain hoist in the opposite direction. The rotor 9 moves using the rolling elements and rolling frame 14 at the lower end of the third rotor support 8 until the third rotor support 8 contacts the limit block 15. The specific details are as follows: Figure 2 As shown;

[0076] Use a jack to lift the extension shaft 5 so that the rolling elements can be installed at the lower end of the first rotor support 6, and the adjusting shims, square box and shims can be installed at the upper end of the first rotor support 6. Then remove the third rotor support 8, the rolling elements at its lower end and the adjusting shims, square box and shims at its upper end, lower the extension shaft 5 and remove the jack.

[0077] Pulling the first cable 2 onto the hand chain hoist and pulling the second cable 12 onto the hand chain hoist in the opposite direction causes the rotor 9 to move using the rolling elements and rolling frame 14 at the lower end of the first rotor support 6, until the first rotor support 6 moves to the edge of the core support assembly, as detailed below. Figure 3 As shown;

[0078] Use a jack to lift the non-excitation end of rotor 9 so that rolling elements can be installed at the lower end of the second rotor support 7, and adjusting shims, square boxes and shims can be installed at the upper end of the second rotor support 7. Then remove the first rotor support 6, the rolling elements at its lower end and the adjusting shims, square boxes and shims at its upper end, lower the non-excitation end of rotor 9 and remove the jack.

[0079] Pulling the first cable 2 onto the hand chain hoist causes pulling the second cable 12 onto the hand chain hoist in the opposite direction. The rotor 9 moves using the rolling elements and rolling frame 14 at the lower end of the second rotor support 7, and gradually removes the core support 17 at the end of the second rotor support 7 away from the extension shaft 5, until the second rotor support 7 moves to the edge of the core support assembly. (Specific details are as follows...) Figure 4 As shown;

[0080] Use a jack to lift the extension shaft 5, install the third rotor bracket 8 with rolling elements at the lower end to the lower end of the extension shaft 5, and install adjusting shims, square boxes and shims at the upper end of the third rotor bracket 8. Then remove the second rotor bracket 7, its lower rolling elements and its upper adjusting shims, square boxes and shims, lower the extension shaft 5 and remove the jack.

[0081] Remove the remaining core support 17, pull the first cable 2 onto the hand chain hoist, and pull the second cable 12 onto the hand chain hoist in the opposite direction. The rotor 9 moves using the rolling elements and rolling frame 14 at the lower end of the third rotor support 8 until the rotor 9 is axially installed in place. (Specific details are as follows...) Figure 5 As shown;

[0082] like Figure 6 As shown, the jack lifts the non-magnetized end of rotor 9, and the non-magnetized end bearing 18 is installed at the journal position of the non-magnetized end of rotor 9; as Figure 7 As shown, remove the third rotor support 8, its lower rolling element and its upper adjusting shim, square box and shim, lower the non-excitation end of the rotor 9 and remove the jack.

[0083] Use a jack to lift the fixed frame 11, remove the rolling frame 14, then lower the fixed frame 11 and remove the jack.

[0084] It should be noted that when the rotor 9 is axially installed in place, the hand chain hoist on the second cable 12 is pulled in the opposite direction to the limit position in order to determine whether the rotor 9 is axially installed in place.

[0085] It should be emphasized that the process of extracting rotor 9 is the reverse of the process of inserting rotor 9.

[0086] In summary, this synchronous condenser rotor disassembly and assembly tool is suitable for on-site installation, inspection, or maintenance of synchronous condenser rotor 9 when there is no large lifting equipment. It features time-saving, labor-saving, low cost, and simple operation, and can disassemble and assemble a 100t rotor 9 with minimal manpower and material resources.

[0087] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0088] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A field disassembly and reassembly tool for a rotor of a phase modifier, characterized by, The application relates to a novel type of motor, which comprises the following components: a bottom plate (3), the upper end of which is fixed with a stator (16) of a removed end cover (4), and the upper end surface of the bottom plate (3) is a horizontal surface; a connecting assembly, which comprises a lengthened shaft (5) coaxially fixedly connected to a non-field excitation end of a rotor (9) and a fixed frame (11) fixedly connected to a field excitation end of the rotor (9); a pulling assembly, which comprises a first ground anchor (1) and a second ground anchor (13) arranged at the two ends of the bottom plate (3) respectively, a first cable (2) arranged between the first ground anchor (1) and the lengthened shaft (5), a second cable (12) arranged between the second ground anchor (13) and the fixed frame (11), and hand-operated hoists arranged on the first cable (2) and the second cable (12); a core support assembly, the lower part of which is arranged on the inner circular surface of the stator (16), the upper end surface of the core support assembly is a horizontal surface, and the core support assembly comprises a plurality of core supports (17) which are sequentially and detachably connected along the axial direction; a field excitation end bearing (10) installed at the field excitation end of the rotor (9) and rolling connected to the upper end of the bottom plate (3) through a rolling frame (14); a rotor support assembly, which comprises a first rotor support (6) for providing support for the lengthened shaft (5), a second rotor support (7) for providing support for the non-field excitation end of the rotor (9) and a third rotor support (8) for providing support for the non-field excitation end of the rotor (9); wherein the third rotor support (8) is rolling connected to the upper end of the bottom plate (3) through rolling bodies, the first rotor support (6) is rolling connected to the upper end of the core support assembly through the rolling bodies, the second rotor support (7) is rolling connected to the upper end of the core support assembly through the rolling bodies, and the third rotor support (8) is rolling connected to the upper end of the bottom plate (3) through the rolling bodies.

2. The phase modulator field disassembly and reassembly rotor tool of claim 1, wherein, The first rotor support (6) is detachably connected to the lengthened shaft (5), and the second rotor support (7) is detachably connected to the rotor (9).

3. The phase modulator field disassembly / assembly rotor tool of claim 2, wherein, A limiting block (15) is arranged on the bottom plate (3), when the third rotor support (8) contacts the limiting block (15), the first rotor support (6) moves to one end of the core support assembly.

4. The phase modulator field disassembly / assembly rotor tool of claim 3, wherein, When the first rotor support (6) rolls to the other end of the core support assembly, the second rotor support (7) moves to one end of the core support assembly.

5. The phase modulator field disassembly / assembly rotor tool of claim 4, wherein, When the second rotor support (7) rolls to the other end of the core support assembly, the third rotor support (8) moves to the upper end of the bottom plate (3).

6. The phase modulator field-dismountable rotor tool of claim 1, wherein, The rotor support assembly comprises adjusting shims for detachably connecting to the upper ends of the first rotor support (6), the second rotor support (7) and the third rotor support (8), and the rotor support assembly further comprises a square box and a pad iron, and the upper ends of the adjusting shims are sequentially and detachably connected to the square box and the pad iron.

7. The field disassembly and reassembly tool for a phase modifier rotor as set forth in claim 6, characterized by, The pad iron is a V-shaped pad iron.

8. The phase modulator field-dismountable rotor tool of claim 1, wherein, The lower end surface of the shim assembly is attached to the inner circular surface of the stator (16), and the lower end surface of the core support assembly is attached to the upper end surface of the shim assembly.

9. The phase modulator field-dismountable rotor tool of claim 8, wherein, The shim assembly comprises an insulating shim and a metal shim, the lower end surface of the insulating shim is attached to the inner circular surface of the stator (16), the lower end surface of the metal shim is attached to the upper end surface of the insulating shim, and the lower end surface of the core support assembly is attached to the upper end surface of the metal shim.

10. The phase modulator field-dismountable rotor tool of claim 1, wherein, The rolling frame (14) comprises a rolling frame (1401) and a plurality of rollers (1402) rotatably connected to the rolling frame (1401), and the plurality of rollers (1402) are distributed along the rolling direction.

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