WO2021128900A1 - 电机的组装方法及固定装置 - Google Patents

电机的组装方法及固定装置 Download PDF

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Publication number
WO2021128900A1
WO2021128900A1 PCT/CN2020/111113 CN2020111113W WO2021128900A1 WO 2021128900 A1 WO2021128900 A1 WO 2021128900A1 CN 2020111113 W CN2020111113 W CN 2020111113W WO 2021128900 A1 WO2021128900 A1 WO 2021128900A1
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WO
WIPO (PCT)
Prior art keywords
rotor
stator
segment
fixing
fixing device
Prior art date
Application number
PCT/CN2020/111113
Other languages
English (en)
French (fr)
Inventor
罗九阳
侯楠
Original Assignee
新疆金风科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 新疆金风科技股份有限公司 filed Critical 新疆金风科技股份有限公司
Priority to EP20908436.7A priority Critical patent/EP4068594A4/en
Priority to AU2020414806A priority patent/AU2020414806B2/en
Priority to CA3162868A priority patent/CA3162868A1/en
Priority to US17/757,854 priority patent/US11916449B2/en
Priority to BR112022012334A priority patent/BR112022012334A2/pt
Publication of WO2021128900A1 publication Critical patent/WO2021128900A1/zh
Priority to ZA2022/06893A priority patent/ZA202206893B/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/0006—Disassembling, repairing or modifying dynamo-electric machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/16—Centering rotors within the stator; Balancing rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
    • H02K7/1838—Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/12—Machines characterised by the modularity of some components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • This application relates to the field of motor technology, and in particular to an assembly method and fixing device of a motor.
  • the outer diameter of the motor becomes larger and larger. If the outer diameter of the motor is larger than 4.5m, there is a risk of exceeding the road transportation limit, and the transportation cost will increase sharply, limiting the development of the motor with a larger diameter.
  • the current effective solution is usually to segment the stator and rotor of a large-diameter motor before transporting. After segmentation, there is a large magnetic attraction at the predetermined air gap between the stator segment and the rotor segment in the radial direction, which increases the difficulty of transportation. And the complexity of the assembly process.
  • the purpose of the embodiments of the present application is to provide a motor assembling method and fixing device, which is especially suitable for a large-diameter motor.
  • the assembling method can quickly and easily complete the motor assembling.
  • an embodiment of the present application proposes a method for assembling a motor.
  • the method for assembling the motor includes a preliminary step: segmenting the stator of the motor into at least two stator segments in the circumferential direction, and dividing the rotor of the motor in the circumferential direction.
  • the segment is at least two rotor segments; the pre-assembly step: fix the stator segment and the rotor segment coaxially on the fixing device to form a segment module, and maintain a predetermined gap between the stator segment and the rotor segment in the radial direction; the adjustment step: Move and adjust at least two fixing devices so that the circumferential end surfaces of the stator and rotor segments of adjacent segment modules are respectively attached to and aligned with each other; assembly steps: assembling at least two segment modules in the circumferential direction into a complete Assemble the main shaft, stator and rotor coaxially as a whole; disassembly steps: disassemble the fixing device.
  • the embodiment of the present application also provides a fixing device for assisting in assembling, disassembling and transporting the motor.
  • the stator of the motor includes at least two stator segments arranged in circumferential direction, and the rotor includes At least two rotor segments are installed in the segment,
  • the fixing device includes: a base for supporting the stator segment and the rotor segment; a first fixing frame arranged on the base, and the first fixing frame is arranged in an arc structure for fixing the stator segment;
  • a plurality of second fixing frames are arranged on the base, and the plurality of second fixing frames are distributed at intervals along the outer circumferential side or the inner circumferential side of the first fixing frame, and are used for fixing the rotor section; wherein, the first fixing frame and the second fixing frame
  • the stator segment and the rotor segment are respectively fixed so that a predetermined gap is always maintained between the stator segment and the rotor segment.
  • At least two stator segments and at least two rotor segments of the motor segmented in the circumferential direction are assembled into a complete stator and rotor in the circumferential direction through the fixing device.
  • the assembly of the motor can be completed quickly and easily, which reduces the difficulty of transportation of the motor and the quality risk of re-assembly.
  • Fig. 1 is a schematic structural diagram of a motor provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of a usage scenario of a fixing device provided by an embodiment of the present application
  • Fig. 3 is a schematic structural diagram of a sliding mechanism of the fixing device shown in Fig. 2;
  • FIG. 4 is a flowchart of a method for assembling a motor provided by an embodiment of the present application
  • FIG. 5 is a schematic diagram of a scene of an adjustment step in the assembling method of the motor shown in FIG. 4;
  • Fig. 6 is a schematic diagram of a scene of an assembly step in the method of assembling the motor shown in Fig. 4.
  • 4-fixing device 40-base; 401-positioning surface; 41-first fixing frame; 42-second fixing frame; 5-leveling device; 6-sliding mechanism; 61-support frame; 610-sliding groove; 620 -Ball; 62-guide rail; 7-drive device; 81-aligning shaft; 82-aligning hole.
  • the following describes in detail an assembling method and fixing device of a motor provided by an embodiment of the present application with reference to FIGS. 1 to 6.
  • the structure of the motor as the outer rotor and the inner stator is exemplified.
  • the method and fixing device of this application are not limited to the above-mentioned motor form, and can also be applied to the structure of the outer stator and inner rotor.
  • the “radial direction” is defined as the diameter direction of the motor
  • the “axial direction” is the axial direction of the motor
  • the “circumferential direction” is the circumferential direction of the motor.
  • an embodiment of the present application provides a motor, which includes a rotor 2, a stator 1, and a main shaft 3 that are generally radially directed from the outside to the inside.
  • the main shaft 3 includes a fixed shaft 31, a rotating shaft 32 and a bearing 33 arranged between the fixed shaft 31 and the rotating shaft 32 coaxially.
  • the stator 1 is connected to the fixed shaft 31 through the stator flange 13, and the rotor 2 is connected to the rotating shaft 32 through the rotor flange 23.
  • the method of segmenting the motor uniformly or non-uniformly in the circumferential direction can break the limitation of the motor diameter due to transportation restrictions.
  • This is an innovative way to realize large-diameter or super-large-diameter motors; but for MW Grade motors, especially generators used in wind turbines, the magnetic attraction between stator 1 and rotor 2 can reach several tons.
  • Deformation is a new challenge to the assembly and transportation of segmented motors.
  • the stator 1 of the motor is segmented into at least two stator segments 10 in the circumferential direction
  • the rotor 2 is segmented into at least two rotor segments 20 in the circumferential direction
  • the number of specific segments can be the same or different; but in order to optimize and simplify the assembly procedure, the stator 1 and the rotor 2 are segmented into the same number of stator segments 10 and rotor segments 20.
  • the stator segment 10 and the rotor segment 20 are coaxially arranged.
  • a segment module M including a stator segment 10 and a rotor segment 20 is formed in a one-to-one correspondence.
  • one stator segment 10 and several rotor segments 20 can form a segment module M, or several stator segments 10 and one rotor segment 20 can form a segment module M. Of course, the number can also be different.
  • the plurality of stator segments 10 and the plurality of rotor segments 20 form a section module M.
  • the central angle of the stator included in one section module M is the same as the central angle of the rotor.
  • an embodiment of the present application provides a fixing device 4 for assisting assembly, disassembly, and transportation of the motor.
  • the fixing device 4 includes a base 40, a first fixing frame 41 and a second fixing frame 42.
  • the base 40 In order to adapt to the semicircular shape of a segment module M including a stator segment 10 and a rotor segment 20, the base 40 has a rectangular frame structure as a whole for supporting the stator segment 10 and the rotor segment 20.
  • the base 40 is mainly used to carry the weight of the stator section 10 and the rotor section 20 and needs to have sufficient bearing capacity.
  • the base 40 can be set as a steel structure in the form of a frame, which satisfies the structural strength and rigidity and has the lightest weight.
  • the first fixing frame 41 is arranged on the base 40.
  • the first fixing frame 41 has an arc structure to adapt to the arc shape of the stator flange.
  • the long column of the first fixing frame 41 is fixed to the stator flange of the stator 1, that is, Fix the stator section 10.
  • the long column of the first fixing frame 41 is used to fix the segmented stator flange 13.
  • the long column is set in a wedge shape with a narrow upper part and a lower width, so that the stator The section 10 is stably and fixedly supported on the base 40.
  • the stator flange 13 is provided with a plurality of positioning holes along the circumferential direction.
  • these positioning holes are connected to the fixed shaft 31 by fasteners.
  • a part of the positioning holes of the stator flange 13 and the long post of the first fixing frame 41 may be selected.
  • the fixed connection avoids the stator flange of the stator segment 10 from being deformed due to excessive fixed strain.
  • the second fixing frame 42 is also disposed on the base 40, and the second fixing frame 42 includes a plurality of short uprights spaced along the outer circumference or inner circumference of the first fixing frame 41 for fixing the rotor section 20.
  • the first fixing bracket 41 and the second fixing bracket 42 fix the stator section 10 and the rotor section 20 respectively, so that a preset distance is always maintained between the stator section 10 and the rotor section 20.
  • the number of the second fixing frames 42 is greater than the number of the first fixing frames 41.
  • the second fixing frame 42 can move relative to the first fixing frame 41 in the radial direction of the motor to adapt to different preset distances between the stator 1 and the rotor 2.
  • a plurality of second fixing frames 42 are distributed at intervals along the outer peripheral side of the first fixing frame 41; when the motor has an inner rotor and an outer stator structure, a plurality of second fixing frames 42 They are distributed at intervals along the inner circumference of the first fixing frame 41.
  • a plurality of second fixing frames 42 in the form of a short column structure are used to fix the outer peripheral edge of the segmented rotor section 20. Since the rotor in the form of an outer rotor has a "thin shell" structure, short columns with relatively close intervals can be arranged in the circumferential direction to fix the rotor section 20, that is, the number of short columns is larger than the number of long columns.
  • the radial position of the second fixing bracket 42 relative to the first fixing bracket 41 is adjustable, so as to facilitate the installation of the rotor segment 20 and adapt to different predetermined air gaps between the stator and the rotor.
  • the base 40 is provided with an oblong hole
  • the second fixing frame 42 is pre-connected to the base 40 by bolts passing through the oblong hole
  • the position of the second fixing frame 42 relative to the first fixing bracket 41 can be adjusted by the oblong hole.
  • the large-diameter motor is segmented into two section modules M, and each fixing device 4 supports one section module M.
  • the two section modules M can be assembled It is a complete stator 1 and rotor 2.
  • the two assembled fixing devices 4 can also be disassembled, and operations such as transportation of the section module M together with the fixing device 4 can be performed.
  • An embodiment of the present application provides a fixing device 4 that fixes the stator section 10 of a large-diameter motor by a first fixing frame 41, and fixes the rotor section 20 by a plurality of second fixing frames 42, and is in the process of transporting and assembling the large-diameter motor
  • the first fixed bracket 41 and the second fixed bracket 42 always maintain a preset distance, which is beneficial to the motor after the test is completed. It can avoid the change of the air gap during transportation.
  • the embodiment of the present application uses a motor with an inner stator and an outer rotor structure as an example for description.
  • the fixing device 4 further includes a sliding mechanism 6.
  • the sliding mechanism 6 enables the adjacent fixing devices 4 to be driven by the driving device 7 to preset The moving path is close or far away.
  • the fixing device 4 also includes a sliding mechanism 6 arranged below the base 40.
  • the sliding mechanism 6 includes a support frame 61 with a sliding groove 610 and a guide rail 62 movably connected to the sliding groove 610, the sliding groove 610 being perpendicular to the stator section 10 or the rotor section 20 is arranged along the segmented end surface in the circumferential direction, and the base 40 is connected with the guide rail 62.
  • the cross section of the guide rail 62 is arranged in an “I” shape, and the lower lateral side of the guide rail 62 is accommodated in the sliding groove 610 and moves back and forth along the sliding groove 610 of the support frame 61.
  • the upper horizontal edge of the guide rail 62 is fixedly connected to the base 40, which increases the connection area between the guide rail 62 and the base 40, and can bear the weight of the base 40 and the section module M.
  • the two sides of the sliding groove 610 are provided with balls 620 and coated with lubricating oil.
  • the sliding groove 610 may be arranged perpendicular to the circumferentially segmented end surface of the stator section 10 or the rotor section 20, or the extending direction of the sliding groove 610 may be set to the preset moving path direction when the fixing devices 4 are assembled or disassembled. In this way, it can be ensured that each fixing device 4 drives the respective section modules M to approach or move away from each other, so as to assemble each section module M into a complete stator 1 and rotor 2 or disassemble the complete stator 1 and rotor 2.
  • the fixing device 4 further includes a driving device 7.
  • One end of the driving device 7 is set on the base 40 of the fixing device 4, and the other end is set on the base 40 of the other fixing device 4.
  • the driving device 7 drives the two fixing devices 4 along their respective The chutes 610 move and approach each other.
  • the driving device 7 may be a hydraulic cylinder or an air cylinder. Since the sliding mechanism 6 is installed at the bottom of the fixing device 4, the driving device 7 drives the two adjacent fixing devices 4 through a retractable movement to drive the respective section modules M to move relative to each other and to move closer to each other, which is convenient for moving the stators of each section module M.
  • the circumferential end surfaces of the segments 10 are spliced with each other by fasteners, and the circumferential end surfaces of the rotor segments 20 of the segment modules M are spliced with each other by fasteners.
  • the base 40 has a positioning surface 401 which is located at the segmented end surface of the stator segment 10 or the rotor segment 20 of the base 40 and is arranged parallel to the segmented end surface of the stator segment 10 or the rotor segment 20 in the circumferential direction.
  • a centering device is provided on the positioning surface 401.
  • the centering device includes a centering shaft 81 and a centering hole 82.
  • the centering shaft 81 of one fixing device 4 can be inserted into the centering hole 82 at the corresponding position of the other fixing device 4. Therefore, position adjustment and positioning can be performed when the assembly is close.
  • the centering device may also include a number of centering shafts 81 or centering holes 82 spaced apart in the length direction of the positioning surface 401 to fine-tune the position of the fixing device 4 in real time during assembly to meet the precise assembly requirements of the motor.
  • the plane where the positioning surface 401 is located does not exceed the segmented end surface of the stator segment 10 or the rotor segment 20 in the circumferential direction, that is, the positioning surface 401 is "retracted" from the segmented end surface of the stator segment 10 and the rotor segment 20, so that It is avoided that the adjacent stator segments 10 or rotor segments 20 cannot be spliced together due to the large gap when the segmented end faces are spliced together.
  • the self-aligning shaft 81 of one fixing device 4 can be arranged to protrude from the segmented end faces of the stator section 10 and the rotor section 20, and to be inserted into the self-aligning hole 82 of the other fixing device 4, so as to ensure the module M of each section.
  • the stator section 10 and the rotor section 20 are aligned in the axial direction and the radial direction and then spliced together to prevent misalignment.
  • the fixing device 4 further includes a leveling device 5, which is arranged under the base 40 and is used to adjust each of the fixing devices 4 Some are located on the same level. By pre-arranging a plurality of leveling devices 5 on the assembled ground, and then placing the fixing devices 4 on the leveling devices 5, the height of each fixing device 4 is adjusted so that each section module M is on the same level. In order to assemble the section module M.
  • the main shaft 3 is connected with the stator 1 and the rotor 2 to complete the assembly of the motor.
  • the fasteners such as bolts between the first fixing frame 41 and the stator flange 13 and the fasteners such as the bolts of the second fixing frame 42 and the rotor section 20 are disassembled, and the motor is separated from the fixing device 4.
  • first fix the motor to the fixing device 4 then fix the stator 1 and the rotor 2 respectively, take out the main shaft 3, start the drive device 7, so that the two fixing devices 4 are separated, and the respective fixing devices 4
  • the section module M carrying the motor segment can be transported and other operations.
  • the embodiment of the present application also provides a method for assembling a motor.
  • the disassembly process of the segmented motor before transportation is basically the opposite of the assembling method, and the assembling method is taken as an example.
  • the assembly method of the motor includes:
  • Preliminary step S1 segment the stator 1 of the motor into at least two stator segments 10 in the circumferential direction, and segment the rotor 2 of the motor into at least two rotor segments 20 in the circumferential direction;
  • Pre-assembly step S2 fix the stator section 10 and the rotor section 20 coaxially on the fixing device 4 to form a segment module M, and a predetermined gap is maintained between the stator section 10 and the rotor section 20 in the radial direction;
  • Adjusting step S3 moving and adjusting at least two fixing devices 4, so that the circumferentially segmented end faces of the stator section 10 and the rotor section 20 of the adjacent segment modules M are respectively attached to and aligned with each other;
  • Assembly step S4 Assemble at least two segment modules M in the circumferential direction into a complete stator 1 and rotor 2, and then coaxially assemble the main shaft 3 with the stator 1 and the rotor 2 into one body;
  • Disassembling step S5 disassembling the fixing device 4.
  • stator segments 10 and at least two rotor segments 20 of the motor segmented in the circumferential direction are assembled into a complete stator 1 and rotor 2 in the circumferential direction through a fixing device 4,
  • the assembly of the motor can be completed quickly and simply, which reduces the difficulty of transportation of the motor and the quality risk of assembly.
  • the adjustment step S3 includes: adjusting the height of each fixing device 4 through the leveling device 5 disposed under the fixing device 4 so that at least two section modules M are on the same horizontal plane.
  • a plurality of leveling devices 5 can be pre-installed on the ground of the assembly site, and then the fixing device 4 can be placed on the leveling device 5 , By adjusting the height of each fixing device 4, so that the section modules M are on the same level, so as to facilitate the assembly of the section modules M.
  • the adjustment step S3 further includes:
  • Step S31 A sliding mechanism 6 is arranged between the fixing device 4 and the leveling device 5, and a driving device 7 is also arranged between each two adjacent fixing devices 4, and each two adjacent fixing devices are driven by the driving device 7 4 Relatively move under the action of the respective sliding mechanisms 6, so that the segmented end faces of the stator section 10 and the rotor section 20 of the adjacent segment modules M are attached to each other in the circumferential direction.
  • the sliding mechanism 6 includes a support frame 61 with a sliding groove 610 and a guide rail 62 movably connected to the sliding groove 610.
  • the sliding groove 610 can be arranged perpendicular to the circumferential end surface of the stator section 10 or the rotor section 20. , It can also be arbitrarily arranged along the direction of the preset moving path of the fixing device 4, and the base 40 is connected with the guide rail 62.
  • the driving device 7 can drive every two adjacent fixing devices 4 to move along the respective sliding grooves 610 and approach each other.
  • the adjustment step S3 further includes:
  • Step S33 align the circumferentially segmented end faces of the stator segment 10 and the rotor segment 20 of each two adjacent segment modules M with the centering device provided on each fixing device 4, respectively.
  • the base 40 has a positioning surface 401, the positioning surface 401 is arranged parallel to the segment end surface of the stator segment 10 or the rotor segment 20 in the circumferential direction.
  • the centering device includes a segment protruding from the stator segment 10 or the rotor segment 20.
  • the aligning shaft 81 and the aligning hole 82 at the corresponding position are arranged on the end surface, and the aligning shaft 81 of one fixing device 4 and the aligning hole 82 of the adjacent other fixing device 4 are inserted into each other to ensure that each section The stator section 10 and the rotor section 20 of the module M are aligned in the axial direction and the radial direction and then spliced together.
  • assembly step S4 includes:
  • Step S41 Assemble the stator segments 10 of the at least two segment modules M in the circumferential direction into a complete stator 1, and the rotor segments 20 in the circumferential direction assemble the complete rotor 2 in the circumferential direction.
  • Step S42 The main shaft 3 is provided.
  • the main shaft 3 includes a fixed shaft 31, a rotating shaft 32 and a bearing 33 arranged between the fixed shaft 31 and the rotating shaft 32 coaxially.
  • Step S43 Fix the rotor 2 to the rotating shaft 32, and fix the stator 1 to the fixed shaft 31.
  • the main shaft 3 can be hoisted to the top of the fixing device 4 by a hoist, the stator 1 is connected to the fixed shaft 31 through the stator flange, and the rotor 2 is connected to the rotating shaft 32 through the rotor flange.
  • the preliminary step S1 also includes:
  • Step S11 segment the rotor support 21 into at least two rotor support segments in the circumferential direction, and install a plurality of magnetic pole modules 22 on the rotor support segments to form the rotor segment 20.
  • pre-installation step S2 also includes:
  • Step S21 Fix the stator section 10 of the section module M to the first fixing frame 41 of the fixing device 4, and fix the rotor support section of the section module M to the second fixing frame 42 of the fixing device 4, and the first fixing frame 41 It is coaxially arranged with the second fixing frame 42 and separated by a predetermined distance, so that a predetermined gap is maintained between the stator segment 10 and the magnetic pole module 22 in the radial direction.
  • the above method of assembling, disassembling and transporting the motor through the fixing device 4 provided in this application is to fix the end cover side of the motor on the fixing device 4 which is basically horizontally arranged.
  • the air gap between the stator and the rotor of the motor is It is not affected by the weight of the stator and the rotor itself, which is advantageous for maintaining a stable value of the air gap.
  • the plane of the fixing device 4 can also be extended in a substantially vertical direction, and the motor is fixed to the fixing device 4 in a working state, so that the assembled motor is close to the working state to the greatest extent, and the stability of the motor operation is ensured.

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  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
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Abstract

本申请涉及一种电机的组装方法及固定装置。该电机的组装方法包括：预备步骤：将电机的定子沿周向分段为至少两个定子段，将电机的转子沿周向分段为至少两个转子段；预装步骤：将定子段和转子段同轴地固定于固定装置上以形成区段模块，且定子段与转子段之间沿径向保持预定间隙；调整步骤：移动并调整至少两个固定装置，以使相邻的区段模块的定子段和转子段沿周向的端面分别相互贴合并对齐；组装步骤：将至少两个区段模块沿周向组装为完整的定子和转子，再将主轴与定子、转子同轴装配为一体；拆卸步骤：拆卸固定装置。

Description

电机的组装方法及固定装置
相关申请的交叉引用
本申请要求享有于2019年12月23日提交的名称为“电机的组装方法及固定装置”的中国专利申请201911338705.3的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及电机技术领域，特别是涉及一种电机的组装方法及固定装置。
背景技术
随着风力发电机组的单机功率越来越大，电机的外径越来越大。如果电机的外径尺寸大于4.5m，则有超过道路运输限值的风险，运输成本将急剧增加，限制了电机大直径化的发展。
目前有效的解决方案通常是将大直径电机的定子和转子分段后再运输，分段后定子段和转子段之间沿径向的预定气隙处存在较大的磁吸力，增加了运输难度和组装过程的复杂性。
发明内容
本申请实施例的目的是提供一种电机的组装方法及固定装置，尤其适用于大直径电机，该组装方法可以快速、简便地完成电机的组装。
一方面，本申请实施例提出了一种电机的组装方法，该电机的组装方法包括：预备步骤：将电机的定子沿周向分段为至少两个定子段，将电机的转子沿周向分段为至少两个转子段；预装步骤：将定子段和转子段同轴地固定于固定装置上以形成区段模块，且定子段与转子段之间沿径向保持预定间隙；调整步骤：移动并调整至少两个固定装置，以使相邻的区段模 块的定子段和转子段沿周向的端面分别相互贴合并对齐；组装步骤：将至少两个区段模块沿周向组装为完整的定子和转子，再将主轴与定子、转子同轴装配为一体；拆卸步骤：拆卸固定装置。
另一方面，本申请实施例还提供了一种固定装置，用于辅助组装、拆分以及运输电机，电机的定子包括沿周向分段设置的至少两个定子段，转子包括沿周向分段设置的至少两个转子段，固定装置包括：底座，用于支撑定子段和转子段；第一固定架，设置于底座上，第一固定架呈弧形结构设置，用于固定定子段；多个第二固定架，设置于底座上，多个第二固定架沿第一固定架的外周侧或者内周侧间隔分布，用于固定转子段；其中，第一固定支架与第二固定支架分别固定定子段与转子段，使得定子段与转子段之间始终保持预定间隙。
本申请实施例提供的一种电机的组装方法及固定装置，通过固定装置将电机沿周向分段的至少两个定子段和至少两个转子段分别沿周向组装为完整的定子和转子，可以快速、简便地完成电机的组装，降低了电机的运输难度及再次组装的质量风险。
附图说明
从下面结合附图对本申请的具体实施方式的描述中可以更好地理解本申请，其中，通过阅读以下参照附图对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更明显，相同或相似的附图标记表示相同或相似的特征。
图1是本申请实施例提供的一种电机的结构示意图；
图2是本申请实施例提供的一种固定装置的使用场景示意图；
图3是图2所示的固定装置的滑动机构的结构示意图；
图4是本申请实施例提供的一种电机的组装方法的流程框图；
图5是图4所示的电机的组装方法中的调整步骤的场景示意图；
图6是图4所示的电机的组装方法中的组装步骤的场景示意图。
附图标记说明：
1-定子；10-定子段；11-定子支架；12-铁芯绕组；13-定子法兰；2-转子；20-转子段；21-转子支架；22-磁极模块；23-转子法兰；3-主轴；31-固定轴；32-转动轴；33-轴承；M-区段模块；
4-固定装置；40-底座；401-定位面；41-第一固定架；42-第二固定架；5-调平装置；6-滑动机构；61-支撑架；610-滑槽；620-滚珠；62-导轨；7-驱动装置；81-调心轴；82-调心孔。
具体实施方式
下面将详细描述本申请的各个方面的特征和示例性实施例。下面的详细描述中公开了许多具体细节，以便全面理解本申请。但是，对于本领域技术人员来说，很明显的是，本申请可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了通过示出本申请的示例来提供对本申请的更好的理解。本申请决不限于下面所提出的任何具体配置和算法，而是在不脱离本申请的精神的前提下覆盖了元素、部件和算法的任何修改、替换和改进。在附图和下面的描述中，没有示出公知的结构和技术，以便避免对本申请造成不必要的模糊。
为了更好地理解本申请，下面结合图1至图6对本申请实施例提供的一种电机的组装方法及固定装置进行详细描述。本申请中，以电机为外转子、内定子的结构形式作出示例性说明，可以理解，本申请的方法以及固定装置不仅限于上述电机形式，还可适用外定子、内转子的结构形式。此外，本申请中，定义“径向”为电机的直径方向，“轴向”为电机的轴线方向，“周向”为电机的圆周方向。
参阅图1，本申请实施例提供了一种电机，包括大致沿径向由外而内的转子2、定子1、主轴3。主轴3包括同轴设置的固定轴31、转动轴32以及设置于固定轴31与转动轴32之间的轴承33。定子1通过定子法兰13与固定轴31连接，转子2通过转子法兰23与转动轴32连接。
对于大直径电机而言，将电机沿周向均匀或非均匀地分段的方式可以突破运输限制对电机直径的限制，这是实现大直径或超大直径电机的一种创新方式；但对于兆瓦级别的电机，尤其是用于风力发电机组的发电机， 定子1和转子2之间的磁吸力可以达到数吨级的大小，分段后如何保持电机原有性能以及运输过程的尽可能小的变形，是对分段电机的组装及运输提出的新挑战。
本申请为解决上述技术问题，提出了一种方案，具体地，电机的定子1沿周向分段为至少两个定子段10，转子2沿周向分段为的至少两个转子段20；具体分段的数量可以相同，也可以不同；但为优化和简化组装程序，定子1和转子2分段成相同的数量的定子段10和转子段20。定子段10和转子段20同轴设置，当分段数量相同时，一一对应形成包括一个定子段10和一个转子段20的一个区段模块M。当分段数量不相同时，可以一个定子段10和若干转子段20形成一个区段模块M，也可以若干定子段10和一个转子段20形成一个区段模块M，当然，也可以是数量不同的若干定子段10和若干转子段20形成一个区段模块M，此时一个区段模块M所包括的定子圆心角与转子圆心角相同。区段模块M在运输及组装的过程中，需要保证各定子段10与转子段20沿径向始终保持预定的距离，例如为设计好的气隙距离，因此需要定制牢固的固定装置以及组装/拆卸工装，并且经过反复研究和仿真计算，从多个方面确保预定气隙保持不变的需求。
参阅图2，以将定子1和转子2在周向分成两段为例，本申请实施例提供了一种固定装置4，用于辅助组装、拆卸以及运输电机。固定装置4包括：底座40、第一固定架41和第二固定架42。
为适应半圆形的包括一个定子段10和一个转子段20的一个区段模块M的形状，底座40整体呈矩形的框形结构，用于支撑定子段10和转子段20。底座40主要用于承载定子段10和转子段20的重量，需要有足够的承载力，可以将底座40设置为框架形式的钢结构，在满足结构强度和刚度的同时重量最轻。
第一固定架41设置于底座40上，第一固定架41呈弧形结构以适应定子法兰的弧形形状，第一固定架41的长立柱与定子1的定子法兰固定，即用于固定定子段10。具体来说，第一固定架41的长立柱用于与分段后的定子法兰13固定，为防止定子段10受磁吸力影响，长立柱设置为上窄下宽的楔形形状，以将定子段10稳定固定支撑于底座40。定子法兰13沿周 向设置有多个定位孔，在组装成完整电机时，这些定位孔通过紧固件与固定轴31连接。为了便于将定子段10固定至第一固定架41，以及后续将定子段10与固定轴31连接，可以在定子法兰13的多个定位孔选取一部分定位孔与第一固定架41的长立柱固定连接，以避免定子段10的定子法兰出现过多的固定应变而导致变形。后续将完整的定子1与固定轴31连接时，先将其余的定位孔与固定轴31固定连接，再将与第一固定架41连接的定位孔的紧固件取出后，通过紧固件连接至固定轴31。
第二固定架42同样设置于底座40上，第二固定架42包括多个沿第一固定架41的外周侧或者内周侧间隔分布的短立柱，用于固定转子段20。其中，第一固定支架41与第二固定支架42分别固定定子段10与转子段20，使得定子段10与转子段20之间始终保持预设距离。
可选地，第二固定架42的数量比第一固定架41的数量多。第二固定架42可相对于第一固定架41沿电机的径向方向移动，以适应定子1与转子2之间的不同预设距离。
当电机为内定子、外转子的结构时，多个第二固定架42沿第一固定架41的外周侧间隔分布；当电机为内转子、外定子的结构时，多个第二固定架42沿第一固定架41的内周侧间隔分布。
以内定子、外转子结构的电机为例，多个短立柱结构形式的第二固定架42用于固定分段后的转子段20的外周边缘。由于外转子形式的转子呈现为“薄壳”结构，在周向可设置间隔较密的短立柱来固定转子段20，即短立柱的数量比长立柱的数量多。可选地，第二固定架42相对于第一固定支架41的径向位置可调，以便于安装转子段20以及适应定子转子之间不同的预定气隙的情形。例如，底座40上设置有长圆孔，第二固定架42通过穿过长圆孔的螺栓预连接至底座40，长圆孔可以调整第二固定架42相对于第一固定支架41的位置。当安装好转子段20后，调整第一固定支架41与第二固定支架42之间的距离，使二者之间保持预设距离，再将螺栓紧固至底座40，以确保区段模块M的定子段10与转子段20之间沿径向始终保持预定气隙，满足大直径电机的使用需求。
如图2所示，大直径电机分段为两个区段模块M，每个固定装置4支 撑一个区段模块M，通过移动并调整两个固定装置4，可以将两个区段模块M组装为完整的定子1和转子2。当然，也可以将组装好的两个固定装置4拆分开，对区段模块M连同固定装置4一起进行运输等操作。
本申请实施例提供的一种固定装置4，通过第一固定架41固定大直径电机的定子段10，通过多个第二固定架42固定转子段20，且在运输及组装大直径电机的过程中，第一固定支架41与第二固定支架42之间始终保持预设距离，这对于完成试验测试后的电机是有利的，可以避免气隙在运输过程中的改变，当再次组装后，由于运输过程稳定的气隙值的保持，可以无需再次试验测试以及验证即可保证电机的性能，这样可以提高大直径电机的组装质量，降低了大直径电机的运输难度及再次组装的质量风险。
下面结合附图进一步详细描述本申请实施例提供的固定装置4的具体结构。另外，为了便于描述，本申请实施例以内定子、外转子结构的电机为例进行说明。
请一并参阅图2和图3，为了便于移动并调整固定装置4，固定装置4还包括滑动机构6，滑动机构6可使得相邻的固定装置4在驱动装置7的驱动下，以预设的移动路径靠近或远离。
固定装置4还包括设置于底座40下方的滑动机构6，滑动机构6包括具有滑槽610的支撑架61和与滑槽610可移动连接的导轨62，滑槽610垂直于定子段10或者转子段20沿周向的分段端面设置，底座40与导轨62连接。
可选地，导轨62的横截面呈“工”字型设置，导轨62的下横边容纳于滑槽610，并沿支撑架61的滑槽610来回移动。导轨62的上横边与底座40固连，增加导轨62与底座40的连接面积，可以承载底座40及区段模块M的重量。为了提高导轨62沿滑槽610来回移动的平顺性，滑槽610的两侧设置有滚珠620，并涂覆有润滑油。
另外，滑槽610可以垂直于定子段10或者转子段20沿周向的分段端面设置，也可以设置滑槽610的延伸方向为组装或拆分各固定装置4时的预设的移动路径方向，这样可以确保各固定装置4带动各自的区段模块M相互靠近或远离，以便于将各区段模块M组装为完整的定子1和转子2、 或者拆分完整的定子1和转子2。
进一步地，固定装置4还包括驱动装置7，驱动装置7的一端设置于固定装置4的底座40，另一端设置于另一个固定装置4的底座40，驱动装置7驱动两个固定装置4沿各自的滑槽610移动并彼此靠近。
驱动装置7可以为液压缸或气缸。由于固定装置4的底部安装有滑动机构6，驱动装置7通过可伸缩运动驱动相邻的两个固定装置4带动各自的区段模块M相对移动并彼此靠近，便于将各区段模块M的各定子段10沿周向的端面通过紧固件相互拼接，并将各区段模块M的各转子段20沿周向的端面通过紧固件相互拼接。
进一步地，底座40具有定位面401，定位面401位于底座40的定子段10或转子段20的分段端面处，并且平行于定子段10或者转子段20沿周向的分段端面设置。定位面401上设置有调心装置，调心装置包括调心轴81和调心孔82，可以设置一个固定装置4的调心轴81插入另一个固定装置4相应位置处的调心孔82，从而在拼装靠近时进行位置调节和定位。调心装置还可以包括在定位面401的长度方向间隔分布的若干个调心轴81或调心孔82，以在拼装时对固定装置4的位置进行实时微调，满足电机的精确拼装要求。
可选地，定位面401所在的平面不超过定子段10或者转子段20沿周向的分段端面，即定位面401“缩进”于定子段10和转子段20的分段端面，这样可以避免相邻的定子段10或者转子段20因分段端面拼合时间隙过大无法拼接在一起。并且，可以设置一个固定装置4的调心轴81凸出于定子段10和转子段20的分段端面，与另一个固定装置4的调心孔82相互对插，可以保证各区段模块M的定子段10和转子段20沿轴向和径向分别对齐后再拼接在一起，防止错位。
由于组装现场的地面难免存在凹凸不平，为了便于将各区段模块M进行精确拼接，固定装置4还包括调平装置5，调平装置5设置于底座40的下方，用于调整固定装置4的各部分位于同一水平面。通过在组装的地面上预先设置多个调平装置5，再将固定装置4放置于调平装置5之上，调节每个固定装置4的高度，进而使各个区段模块M处于同一水平面上，以便 于拼装区段模块M。
各区段模块M通过固定装置4相互拼接为一体后，再将主轴3与定子1和转子2连接，即可完成电机的组装。然后将第一固定架41与定子法兰13之间的螺栓等紧固件及第二固定架42与转子段20的螺栓等紧固件拆卸下来，将电机与固定装置4分离。当需要拆分分段的电机时，先将电机固定至固定装置4，再分别固定定子1和转子2，取出主轴3，启动驱动装置7，使得两个固定装置4分离，各自的固定装置4承载着电机分段的区段模块M，可以进行运输等操作。
参阅图4，本申请实施例还提供了一种电机的组装方法，同时，分段电机运输前的拆分过程基本与组装方法相反，以组装方法为例说明。该电机的组装方法包括：
预备步骤S1：将电机的定子1沿周向分段为至少两个定子段10，将电机的转子2沿周向分段为至少两个转子段20；
预装步骤S2：将定子段10和转子段20同轴地固定于固定装置4上以形成区段模块M，且定子段10与转子段20之间沿径向保持预定间隙；
调整步骤S3：移动并调整至少两个固定装置4，以使相邻的区段模块M的定子段10和转子段20沿周向的分段端面分别相互贴合并对齐；
组装步骤S4：将至少两个区段模块M沿周向组装为完整的定子1和转子2，再将主轴3与定子1、转子2同轴装配为一体；
拆卸步骤S5：拆卸固定装置4。
本申请提供的一种电机的组装方法，通过固定装置4将电机沿周向分段的至少两个定子段10和至少两个转子段20分别沿周向组装为完整的定子1和转子2，可以快速、简便地完成电机的组装，降低了电机的运输难度及组装的质量风险。
下面结合附图进一步描述本申请的电机的组装方法的具体步骤。
请一并参阅图5和图6，调整步骤S3包括：通过设置于固定装置4下方的调平装置5调整每个固定装置4的高度，以使至少两个区段模块M处于同一水平面。
由于组装现场的地面难免存在凹凸不平，为了便于将各区段模块M进行精确拼接，可以在组装现场的地面上预先设置多个调平装置5，再将固定装置4放置于调平装置5之上，通过调节每个固定装置4的高度，使区段模块M处于同一水平面上，以便于拼装区段模块M。
可选地，调整步骤S3还包括：
步骤S31：固定装置4与调平装置5之间设置有滑动机构6，每相邻的两个固定装置4之间还设置有驱动装置7，通过驱动装置7驱动每相邻的两个固定装置4在各自的滑动机构6的作用下相对移动，以使相邻的区段模块M的定子段10和转子段20沿周向的分段端面分别相互贴合。
如前所述，滑动机构6包括具有滑槽610的支撑架61和与滑槽610可移动连接的导轨62，滑槽610可以垂直于定子段10或者转子段20沿周向的分段端面设置，也可以是任意的沿固定装置4的预设移动路径的方向设置，底座40与导轨62连接。驱动装置7可以驱动每相邻的两个固定装置4沿各自的滑槽610移动并彼此靠近。
可选地，调整步骤S3还包括：
步骤S33：通过设置于每个固定装置4上的调心装置将每相邻的两个区段模块M的定子段10和转子段20沿周向的分段端面分别相互对齐。
如前所述，底座40具有定位面401，定位面401平行于定子段10或者转子段20沿周向的分段端面设置，调心装置包括凸出于定子段10或转子段20的分段端面设置的调心轴81和与之相应位置的调心孔82，且一个固定装置4的调心轴81与相邻的另一个固定装置4的调心孔82相互对插，可以保证各区段模块M的定子段10和转子段20沿轴向和径向分别对齐后再拼接在一起。
进一步地，组装步骤S4包括：
步骤S41：将至少两个区段模块M的定子段10沿周向组装为完整的定子1，转子段20沿周向组装为完整的转子2。
步骤S42：提供主轴3，主轴3包括同轴设置的固定轴31、转动轴32以及设置于固定轴31与转动轴32之间的轴承33。
步骤S43：将转子2固定至转动轴32，将定子1固定至固定轴31。
主轴3可通过吊具吊装至固定装置4的上方，将定子1通过定子法兰与固定轴31连接，将转子2通过转子法兰与转动轴32连接。
另外，当电机为永磁电机时，预备步骤S1还包括：
步骤S11：将转子支架21沿周向分段为至少两个转子支架段，并在转子支架段上安装多个磁极模块22，以形成转子段20。
进一步地，预装步骤S2还包括：
步骤S21：将区段模块M的定子段10固定至固定装置4的第一固定架41，将区段模块M的转子支架段固定至固定装置4的第二固定架42，第一固定架41与第二固定架42同轴设置且间隔预定距离，以使定子段10与磁极模块22之间沿径向保持预定间隙。
以上本申请所提供的通过固定装置4进行电机的组装、拆分及运输的方法，是将电机的端盖侧固定于基本水平设置的固定装置4上，电机的定、转子之间的气隙不受定子和转子本身重量的影响，这对保持气隙的稳定的值是有利的。当然，也可以将固定装置4的平面沿基本竖直方向延伸，电机以工作状态固定于固定装置4，以使得组装后的电机最大程度接近工作状态，保证电机运行的稳定性。
本领域技术人员应能理解，上述实施例均是示例性而非限制性的。在不同实施例中出现的不同技术特征可以进行组合，以取得有益效果。本领域技术人员在研究附图、说明书及权利要求书的基础上，应能理解并实现所揭示的实施例的其他变化的实施例。在权利要求书中，术语“包括”并不排除其他装置或步骤；物品没有使用数量词修饰时旨在包括一个/种或多个/种物品，并可以与“一个/种或多个/种物品”互换使用”；术语“第一”、“第二”用于标示名称而非用于表示任何特定的顺序。权利要求中的任何附图标记均不应被理解为对保护范围的限制。权利要求中出现的多个部分的功能可以由一个单独的硬件或软件模块来实现。某些技术特征出现在不同的从属权利要求中并不意味着不能将这些技术特征进行组合以取得有益效果。

Claims (16)

  1. 一种电机的组装方法，包括：
    预备步骤：将所述电机的定子沿周向分段为至少两个定子段，将所述电机的转子沿周向分段为至少两个转子段；
    预装步骤：将所述定子段和所述转子段同轴地固定于固定装置上以形成区段模块，且所述定子段与所述转子段之间沿径向保持预定间隙；
    调整步骤：移动并调整至少两个所述固定装置，以使相邻的所述区段模块的所述定子段和所述转子段沿周向的分段端面分别相互贴合并对齐；
    组装步骤：将至少两个所述区段模块沿周向组装为完整的所述定子和所述转子，再将主轴与所述定子、所述转子同轴装配为一体；
    拆卸步骤：拆卸所述固定装置。
  2. 根据权利要求1所述的组装方法，其中，所述调整步骤包括：通过设置于所述固定装置下方的调平装置调整每个所述固定装置的高度，以使至少两个所述区段模块处于同一水平面。
  3. 根据权利要求2所述的组装方法，其中，所述调整步骤还包括：所述固定装置与所述调平装置之间设置有滑动机构，每相邻的两个所述固定装置之间还设置有驱动装置，通过所述驱动装置驱动每相邻的两个所述固定装置在各自的所述滑动机构的作用下相对移动，以使相邻的所述区段模块的所述定子段和所述转子段沿周向的端面分别相互贴合。
  4. 根据权利要求3所述的组装方法，其中，所述调整步骤还包括：通过设置于每个所述固定装置的调心装置将每相邻的两个所述区段模块的所述定子段和所述转子段沿周向的端面分别相互对齐。
  5. 根据权利要求1所述的组装方法，其中，所述组装步骤包括：
    将至少两个所述区段模块的所述定子段沿周向组装为完整的所述定子，所述转子段沿周向组装为完整的所述转子；
    提供所述主轴，所述主轴包括同轴设置的固定轴、转动轴以及设置于 所述固定轴与所述转动轴之间的轴承；
    将所述转子固定至所述转动轴，将所述定子固定至所述固定轴。
  6. 根据权利要求1所述的组装方法，其中，所述电机为永磁电机，所述预备步骤还包括：
    将转子支架沿周向分段为至少两个转子支架段，并在所述转子支架段上安装多个磁极模块，以形成所述转子段。
  7. 根据权利要求6所述的组装方法，其中，所述预装步骤包括：
    将所述区段模块的所述定子段固定至所述固定装置的第一固定架，将所述区段模块的所述转子支架段固定至所述固定装置的第二固定架，所述第一固定架与所述第二固定架同轴设置且间隔预定距离，以使所述定子段与所述磁极模块之间沿径向保持所述预定间隙。
  8. 一种固定装置，用于辅助组装组装、拆分以及运输电机，所述电机的定子包括沿周向分段设置的至少两个定子段，转子包括沿周向分段设置的至少两个转子段，其中，所述固定装置包括：
    底座，用于支撑所述定子段和所述转子段；
    第一固定架，设置于所述底座上，所述第一固定架呈弧形结构设置，用于固定所述定子段；
    第二固定架，设置于所述底座上，第二固定架沿所述第一固定架的外周侧或者内周侧间隔分布，用于固定所述转子段；
    其中，所述第一固定支架与所述第二固定支架分别固定所述定子段与所述转子段，使得所述定子段与所述转子段之间始终保持预定间隙。
  9. 根据权利要求8所述的固定装置，其中，所述第二固定架的数量多于所述第一固定架的数量。
  10. 根据权利要求8所述的固定装置，其中，所述第二固定架可相对于所述第一固定架沿电机的径向方向移动，以适应所述定子与所述转子之间的不同的预定间隙。
  11. 根据权利要求8所述的固定装置，其中，还包括滑动机构，所述滑动机构可使得相邻的所述固定装置在驱动装置的驱动下，以预设的移动路径靠近或远离。
  12. 根据权利要求11所述的固定装置，其中，所述滑动机构设置于所述底座下方，所述滑动机构包括具有滑槽的支撑架和与所述滑槽可移动连接的导轨，所述滑槽垂直于所述定子段或者所述转子段沿周向的分段端面设置，所述底座与所述导轨连接。
  13. 根据权利要求11所述的固定装置，其中，所述驱动装置的一端设置于所述固定装置的所述底座，另一端设置于另一个所述固定装置的所述底座，所述驱动装置驱动两个所述固定装置沿各自的滑槽移动并彼此靠近或远离。
  14. 根据权利要求8所述的固定装置，其中，还包括定位面以及调心装置，所述定位面相对于所述定子段或所述转子段的沿周向的分段端面缩进设置，所述调心装置相对于所述定子段或所述转子段的沿周向的分段端面凸出设置。
  15. 根据权利要求14所述的固定装置，其中，所述底座具有定位面，所述定位面平行于所述定子段或者所述转子段沿周向的分段端面设置，所述定位面上设置有调心装置，所述调心装置包括调心轴和调心孔，且一个所述固定装置的所述调心轴能够插入另一个所述固定装置的所述调心孔。
  16. 根据权利要求8所述的固定装置，其中，还包括调平装置，所述调平装置设置于所述底座的下方，用于调整所述固定装置的各部分位于同一水平面。
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