WO2019109587A1 - Outil d'assemblage et procédé d'assemblage d'un générateur - Google Patents

Outil d'assemblage et procédé d'assemblage d'un générateur Download PDF

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Publication number
WO2019109587A1
WO2019109587A1 PCT/CN2018/085317 CN2018085317W WO2019109587A1 WO 2019109587 A1 WO2019109587 A1 WO 2019109587A1 CN 2018085317 W CN2018085317 W CN 2018085317W WO 2019109587 A1 WO2019109587 A1 WO 2019109587A1
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WO
WIPO (PCT)
Prior art keywords
kit
rotor
support
stator
assembly tool
Prior art date
Application number
PCT/CN2018/085317
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English (en)
Chinese (zh)
Inventor
王旭
李延慧
杨景超
何海涛
Original Assignee
北京金风科创风电设备有限公司
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Application filed by 北京金风科创风电设备有限公司 filed Critical 北京金风科创风电设备有限公司
Publication of WO2019109587A1 publication Critical patent/WO2019109587A1/fr

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    • 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

Definitions

  • the present disclosure relates to the field of generator technology, and in particular, to an assembly tool and a method of assembling a generator.
  • the low-speed large-diameter generator is composed of a stator and a rotor, for example, a permanent magnet generator in a wind power generator, and an outer rotor type generator is taken as an example.
  • the rotor is coaxially disposed outside the stator, and the rotor can surround the central axis of the stator. Rotate.
  • the permanent magnets on the inner side of the rotor are evenly arranged along the circumference. Since these permanent magnets usually use NdFeB permanent magnet materials with better magnetic properties, and the NdFeB magnets have strong magnetic properties, the rotor and stator are assembled.
  • an existing assembly tool comprises a sliding sleeve and a hollow guiding shaft, and the guiding shaft is arranged on the fixed shaft of the stator so as to be connected with the fixed shaft of the stator, and the inner surface of the sliding sleeve passes from the top to the outer peripheral surface of the guiding shaft By moving, the rotor can be placed outside the stator to complete the assembly of the generator. After the kit is completed, the sleeve is separated from the rotor and the guide shaft is separated from the stator shaft.
  • the method can assist the stator and rotor assembly, and the method has some problems.
  • the yoke is similar to the cantilever beam during the setting process, and the yoke is momentarily attracted by the magnetic pole and the stator core, with the magnetic pole. As the degree of coincidence with the core increases, the force applied to the yoke gradually increases, so that the rotor yoke may be deformed.
  • the rotating shaft needs to be installed. At this time, the rotor lacks a fixed constraint, so the rotor and the stator are also prone to adsorption.
  • the subsequent repair work is complicated and the reliability after repair is poor, which brings economic loss and reduces the quality of the generator and reduces the service life of the generator.
  • an assembly tooling and assembly method of a generator capable of assisting a rotor and a stator of a generator to be packaged, and in the process of rotor and stator assembly, the assembly tool can provide but not limited to Benefits of the following: ensuring the uniformity of the air gap between the rotor and the stator, avoiding the side of the kit from being attracted to the kit when approaching the kit, affecting the cylindricity of the rotor, and even causing the rotor pole and stator iron The core is damaged.
  • an assembly tool for a generator for assembling a stator and a rotor of an auxiliary generator to each other wherein one of a rotor and a stator is used as a kit, and the other is used as a kit
  • the assembly tool includes: a limiting device disposed around the predetermined axis and defining an accommodating space on a side facing the predetermined axis, the limiting device having a guiding surface extending away from the accommodating space and extending along a predetermined axis; and the follow-up guiding device
  • the first abutting portion is connected to the connecting portion, and the first abutting portion protrudes at least partially in the first direction from the connecting portion.
  • the first abutting portion When the follow-up guiding device is connected to the sleeve through the connecting portion, the first abutting portion The portion can protrude toward the inside of the sleeve along the radial direction of the sleeve, wherein the first abutting portion can abut against the outer circumferential surface and the guiding surface of the sleeve and move along the outer circumferential surface and the guiding surface, so that the kit and the kit are The air gap between them remains constant.
  • the assembly tool provided by the embodiment of the present disclosure can ensure that the air gap formed between the kit and the kit is kept constant by the cooperation of the limiting device and the follower guiding device during the assembly of the auxiliary kit and the assembly, avoiding the kit Deformation in the radial direction is applied to the kit, causing the magnetic pole and the core to be damaged. Therefore, the assembly man-hour of the generator can be saved and the assembly cost can be saved.
  • the limiting device includes: a fixing bracket; and a limiting body connected to the fixing bracket and extending away from the fixing bracket, wherein the guiding surface is formed on the limiting body Deviate from the side of the accommodation space. Therefore, when the limiting device is engaged with the follower guiding device, a more stable supporting force can be provided for the following guiding device.
  • the limiting device includes a limiting body, the limiting body is an annular body centered on a predetermined axis, and the guiding surface is formed on a side of the annular body facing away from the accommodating space.
  • the limiting device comprises two or more limiting bodies, the limiting body is a strip-shaped body arranged along a circumference centered on a predetermined axis, and the guiding surface is formed on a side of the strip body facing away from the accommodating space Curved face or plane.
  • the limiting body has various implementation forms to adapt to different assembly environments and simplify the assembly process in various forms.
  • the fixed holders are circumferentially spaced blocks; or the fixed holders are annular bodies that extend continuously along the circumference.
  • the structure of the limiting device can be simplified, and the supporting body can be provided with a good supporting force by the fixing bracket.
  • the first abutting portion includes three or more first contacts, and when the follower guiding device is coupled to the kit through the connecting portion, three or more first contacts can be along the circumference of the kit
  • the kits are equally spaced and project radially inwardly to contact the outer peripheral surface or the guide surface of the kit by more than three first contacts. Therefore, while simplifying the structure of the follow-up guiding device, it is also possible to control the set path of the kit by simultaneously matching the three or more first contacts with the limit device to ensure uniform air gap between the kit and the kit. Sex.
  • the follow-up guiding device further includes a second abutting portion connected to the connecting portion, the second abutting portion being located on a side of the first abutting portion away from the connecting portion and extending in the first direction
  • the second abutting portion can protrude toward the inside of the sleeve in the radial direction of the sleeve, and the follow-up guiding device can pass the first abutting portion and the first portion
  • the abutting portion simultaneously abuts against the outer peripheral surface and the guiding surface of the kit and moves along the outer peripheral surface or the guiding surface to keep the air gap between the kit and the kit constant.
  • the first abutting portion and the second abutting portion can simultaneously abut against the outer peripheral surface or the guiding surface and move along the outer peripheral surface or the guiding surface, thereby enabling Further control of the kit's package path to prevent the kit from deforming in the radial direction.
  • the second abutting portion includes three or more second contacts, and three or more second contacts are capable of following the circumference of the kit when the follower guiding device is coupled to the kit through the connecting portion
  • the kits are equally spaced and project radially inwardly to contact the outer peripheral surface or the guide surface of the kit by more than three second contacts. While simplifying the structure of the follow-up guiding device, it is also possible to control the set path of the kit by simultaneously matching the three or more second contacts with the limit device limit, thereby further effectively controlling the package path of the kit to prevent The kit deforms in the radial direction.
  • the connecting portion includes a connecting body, the connecting body is correspondingly connected with the three or more first contacts and the three or more second contacts, and the first contact and the second contact are all along The first direction protrudes from the connecting body.
  • the connecting portion includes a connecting body that is an annular body centered on a predetermined axis, and three or more first contacts and three or more second contacts are equally spaced Connected to the annular body and protrude radially inwardly from the annular body; or, the connecting portion includes three or more connecting bodies, the connecting body is a block body, and each block body is connected to more than one first contact And one or more second contacts, and each of the first contacts and each of the second contacts protrudes from the block in a first direction.
  • the connecting body has various implementation forms to adapt to different assembly environments and simplify the assembly process in various forms.
  • the connecting body includes a plate-shaped main body and a first positioning portion provided to the main body, and the main body can be attached to one end portion of the sleeve in the axial direction such that the first positioning portion abuts the kit Inner and/or outer circumference.
  • the follow-up guiding device further includes a support portion detachably coupled to the connecting portion, and the first contact member and the second contact member are coupled to the connecting portion through the support portion.
  • the detachable connection of the first contact member and the second contact member to the connecting portion by providing the support portion can enhance the flexible usability of the follower guide.
  • the first contact member is a first rolling body rotatably coupled to the connecting portion, and the follower guiding device is in rolling contact with the outer peripheral surface and the guiding surface by the first rolling body, respectively; and/or
  • the second contact member is a second rolling body rotatably coupled to the connecting portion, and the follower guiding device is in rolling contact with the outer peripheral surface and the guiding surface by the second rolling body.
  • the follow-up guiding device and the outer peripheral surface of the kit and the guiding surface of the limiting device are in rolling contact with each other to reduce friction and prevent the generator from being worn, and at the same time, the kit can be more smoothly fitted to the kit.
  • an assembly tool further includes: a position maintaining device having a first mounting portion and a second mounting portion connected to each other, the first mounting portion being capable of cooperating with the first mating portion of the kit along the circumferential direction of the kit
  • the second mounting portion can be mated with the second mating portion of the kit in the circumferential direction of the kit to limit movement of the kit and the kit relative to each other.
  • the first mounting portion is engaged with the first fitting portion in the second direction
  • the second mounting portion is engaged with the second fitting portion in the third direction
  • the second direction and the third direction are perpendicular to each other.
  • the position maintaining device is arranged to be connectable to the kit and the kit in two directions perpendicular to each other, which can improve the connection stability of the position maintaining device, and the kit and the kit need not be provided with complicated connection structures, thereby reducing power generation. The cost of the machine and the assembly man-hours of the generator.
  • one of the first mounting portion and the second mounting portion includes a clamping block having a clamping opening; the first mounting portion and the second mounting portion of the other including the fixing block
  • the fixing block has a connecting hole.
  • the first mounting portion and the second mounting portion are respectively connected to the kit and the kit by clamping or conforming and fixing, thereby improving the assembly efficiency of the position maintaining device and ensuring the stability of the connection between the kit and the kit.
  • the assembly tool further includes a support platform having a support end surface, and the limiting device is mounted on the support end surface.
  • a support platform By providing a support platform, a flat support plane can be provided, so that the assembly tool can adapt to various assembly sites and provide conditions for smooth assembly of the generator.
  • the support platform further includes a spacer disposed on the support end surface and located in the accommodating space.
  • the end caps of the generator can be assembled more easily by providing spacers.
  • the assembly tool further includes a support base having a receiving portion and a second positioning portion disposed on the receiving portion, the support base being located in the accommodating space, the support base being capable of passing through the receiving portion
  • the support is supported by the kit, and the second positioning portion can be mated with the kit to limit movement of the kit relative to the receptacle.
  • a method of assembling a generator comprising: providing the assembly tool described above; supporting the package above the accommodating space such that the axis of the package and the predetermined axis Coincident, and aligning the outer peripheral surface of the kit with the guiding surface along the axial direction of the kit; connecting the follower guiding device to the sleeve through the connecting portion, so that the first abutting portion protrudes toward the inside of the sleeve in the radial direction of the sleeve Laying the kit on one side of the axial side of the kit and maintaining a predetermined distance along the axis from the kit, propelling the kit along the predetermined axis toward the kit; placing the first abutment of the follower guide against the periphery of the kit
  • the guide faces of the face and the stop device are successively moved along the outer peripheral face and the guide face, so that the kit is fitted outside the set in a manner that the air gap between the sets
  • the assembly method provided by the embodiment of the present disclosure can ensure that the air gap formed between the kit and the kit is kept constant by the cooperation of the limiting device and the follower guiding device during the assembly of the auxiliary kit and the assembly of the kit, and the kit is avoided. Deformation in the radial direction and the fitting of the kit causes the magnetic pole and the core to be damaged. Therefore, the assembly man-hour of the generator can be saved and the assembly cost can be saved.
  • the assembly tool further includes a position maintaining device having a first mounting portion and a second mounting portion connected to each other, the assembling method further comprising: passing the position maintaining device through the first mounting portion
  • the circumferential direction of the kit is mated with the first mating portion of the kit and is coupled to the second mating portion of the kit by the second mounting portion along the circumference of the kit to limit movement of the kit and the kit relative to each other.
  • FIG. 1 is a schematic structural view of a use state of an assembly tool of a generator according to an embodiment of the present disclosure
  • Figure 2 is a top plan view of Figure 1;
  • Figure 3 is a perspective view showing the structure of the limiting unit in the assembly tool of Figure 2;
  • Figure 4 is an enlarged schematic view showing a partial structure of a portion A in Figure 1;
  • Figure 5 is a perspective structural view of the follower guiding unit in the assembly tool of Figures 1, 2 and 4;
  • Figure 6 is a schematic left side view of the follower guiding unit of Figure 5;
  • FIG. 7 is a schematic view showing the structure of the cage in the follower guiding unit of Figures 4 to 6;
  • Figure 8 is a schematic view showing the structure of the rotating shaft in the follower guiding unit of Figures 4 to 6;
  • Figure 9 is a schematic view showing the structure of the roller in the follower guiding unit of Figures 4 to 6;
  • Figure 10 is an enlarged schematic partial view showing a portion B of Figure 1;
  • Figure 11 is a perspective view showing the position maintaining unit of the assembly tool of Figures 1 and 10;
  • FIG. 12 is a perspective structural schematic view of a partial structure of an assembly tooling according to another embodiment of the present disclosure.
  • FIG. 13 is a schematic structural view of a first step of a stator and rotor package in accordance with an embodiment of the present disclosure
  • Figure 14 is a schematic view showing the structure of the second step of the stator and rotor assembly of Figure 13;
  • Figure 15 is a schematic view showing the structure of the third step of the stator and rotor assembly of Figure 13;
  • Figure 16 is a schematic view showing the structure of the fourth step of the stator and rotor assembly of Figure 13;
  • Figure 17 is a schematic view showing the structure of the fifth step of the stator and rotor assembly of Figure 13;
  • Figure 18 is a schematic view showing the structure of the sixth step of the stator and rotor assembly of Figure 13;
  • Figure 19 is a schematic view showing the seventh step of the stator and rotor assembly of Figure 13;
  • Figure 20 is a block diagram showing the eighth step of the stator and rotor assembly of Figure 13;
  • 60-support base 61-bottom connection plate; 62-wall portion; 63-top connection plate; 64-second positioning portion; 641-curved flange;
  • 80-following guide unit 81-connecting body; 811- body; 811a-connecting hole; 812-first positioning portion; 82-cage; 821-support plate; 822-mounting port; 823-pressing portion; 824-mounting hole; 825-mounting hole; 83-first contact piece; 831-supporting shaft; 831a-shaft shoulder; 831b-locking port; 832-roller; 832a-inner ring; 832b-outer ring; 832c-tight Set screw; 84-second contact piece; 841-support shaft; 841a-shaft shoulder; 841b-locking port; 842-roller; 842a-inner ring; 842b-outer ring; 842c-setting screw; 85-locking board;
  • 90-position holding unit 91-rotor fixing member; 911-supporting block; 912-clamping block; 912a-clamping port; 92-stator fixing member; 921-supporting block; 921a-connection hole; 922-fixing block; 922a - connection hole.
  • the assembly tool of the generator provided by the embodiment of the present disclosure can assist the rotor and the stator of the generator to be set, especially for the permanent magnet generator in the field of wind power generation technology, and the diameter of the permanent magnet generator is relatively large in order to ensure the power generation amount. Moreover, the uniformity of the air gap between the rotor and the stator can be ensured by the assembly tooling, thereby improving the assembly efficiency of the generator and reducing the cost.
  • embodiments of the present disclosure are not limited thereto, and the assembly tool described above can also assist the rotor and stator of other types of generators to be packaged to avoid adsorption between the rotor and the stator.
  • FIG. 1 is a schematic structural view of a use state of an assembly tool of a generator according to an embodiment of the present disclosure. 1 shows a state of use of an assembly tool in an embodiment of the present disclosure.
  • the generator includes a stator 10, a fixed shaft 20 fixedly coupled to the stator 10, a rotor 30, and a rotating shaft 40 fixedly coupled to the rotor 30.
  • the stator 10 includes a stator holder 11 and a core 12 disposed on the outer circumference of the stator holder 11; and the rotor 30 includes a yoke 31, a magnetic pole 32, and an oblique support 33, the magnetic pole 32 is disposed on the inner circumference of the yoke 31, and the oblique support 33 is connected to the magnetic
  • the yoke 31 has one end in the axial direction and extends obliquely toward the inside of the yoke 31 in the radial direction.
  • the stator 10 is fixedly connected to the connecting flange 21 of the fixed shaft 20 via the connecting flange 111 of the stator bracket 11, and the rotor 30 is fixedly connected to the connecting flange 41 of the rotating shaft 40 via the connecting flange 331 of the inclined support 33.
  • the fixed shaft 20 is rotatably coupled to the rotating shaft 40, so that the rotor 30 is rotatably held outside the stator 10 to cut the magnetic lines of force through the relative rotation between the stator 10 and the rotor 30, thereby being in the winding of the rotor 30. Current is generated and output to the outside.
  • one of the stator 10 and the rotor 30 serves as a kit and the other as a kit.
  • the assembly tool of the embodiment of the present disclosure can assist the kit to be sleeved outside the kit to complete the assembly of the generator. Assembly tooling includes: limit device and follower guide.
  • the follow-up guiding device comprising the connecting portion and a first abutting portion of the connecting portion, the first abutting portion protrudes at least partially in the first direction from the connecting portion, and the first abutting portion can be along the diameter of the kit when the follow-up guiding device is connected to the sleeve through the connecting portion Extending toward the inside of the kit, wherein the first abutting portion can abut against the outer peripheral surface and the guiding surface of the kit and move along the outer peripheral surface and the guiding surface to keep the air gap between the kit and the kit constant.
  • the assembly tool provided by the embodiment of the present disclosure can ensure that the kit is always moved along the predetermined axis relative to the kit by the cooperation of the limiting device and the follower guiding device during the assembly of the auxiliary kit and the kit, so as to avoid the kit moving during the movement process. Radial sloshing occurs in the case where a collision occurs between the kit and the kit or they are attached to each other to cause severe friction.
  • the kit is a rotor
  • the kit is an example of a stator.
  • the embodiments of the present disclosure are not limited thereto, and in other embodiments, it is also possible to assemble by the assembly tooling auxiliary inner rotor type generator of the embodiment of the present disclosure, that is, the kit may also be a stator, but The kit is a rotor, and the method of assembling the generator for the auxiliary inner rotor type can be referred to the assembly method of the generator of the outer rotor type.
  • the assembly tool further includes a support platform 50 and a support base 60 for supporting other components of the assembly tool through the support platform 50.
  • the support base 60 has The receiving portion can support and fix the stator 10 as a kit by the receiving portion.
  • the support platform 50 is exemplarily disk-shaped and has a certain thickness, and at least one circular end surface of the support platform 50 is configured as a flat surface as a supporting end surface so as to be supported After the platform 50 is placed on the assembly site, the support end faces can be kept horizontal to serve as a support base for the entire assembly tooling. Since the support platform 50 is circular, the center line of the support platform 50 can be used as a reference axis for assembling the stator 10 and the rotor 30 (hereinafter referred to as a predetermined axis), that is, the limiting device is disposed around the center line of the support platform 50 and Define the accommodation space.
  • the support platform 50 may further include a spacer 51.
  • the specific shape of the spacer 51 is not limited in the embodiment of the present disclosure.
  • the spacer 51 may be a square, a circle, an arc, or the like. body.
  • two or more spacers 51 may be disposed on the support platform 50, and two or more spacers 51 are arranged apart from each other along a predetermined circumference (ie, a circumference corresponding to the end cover 34 of the generator); or, A spacer 51 is disposed on the support platform 50, and at this time, one spacer 51 is configured in a ring shape.
  • the end cover 34 shown in FIG.
  • the support base 60 is fixed on the support end surface of the support platform 50 and located in the accommodating space to support the stator 10.
  • the support base 60 includes a bottom connecting plate 61, a wall portion 62, and a top connecting plate 63.
  • the supporting base 60 may adopt a split structure, and the bottom connecting plate 61 and the top connecting plate 63 are both The flange, and the wall portion 62 is a hollow cylinder connected between the bottom connecting plate 61 and the top connecting plate 63.
  • the bottom connecting plate 61, the wall portion 62 and the top connecting plate 63 may be joined by welding. Since the supporting base 60 is a substantially cylindrical body, the central axis of the supporting base 60 and the predetermined space in the accommodating space The axes coincide.
  • the support platform 50 is provided with a ring-shaped connecting hole corresponding to the bottom connecting plate 61, so that the bottom connecting plate 61 can be fixed to the supporting platform 50 by a bolt assembly, and the top connecting plate 63 is kept parallel with the supporting end surface of the supporting platform 50.
  • the top connecting plate 63 serves as a receiving portion whose size needs to be set with reference to the size of the stator 10 to be assembled. In the present embodiment, the top connecting plate 63 and the connecting end portion of the fixed shaft 20 are connected to support the stator 10.
  • the axial end surface of the fixed shaft 20 is provided with a connecting hole corresponding to the connecting hole of the top connecting plate 63, whereby the fixing shaft 20 can be fixed to the supporting base 60 by using a bolt assembly, thereby being connected to the fixed shaft 20
  • the stator 10 is supported at a predetermined height position above the accommodating space. Since the support base 60 has a simple structure and is easy to install, the support process of the stator 10 can be simplified.
  • the support base 60 further includes a second positioning portion 64.
  • the second positioning portion 64 includes a plurality of arcuate flanges 641 (the case where the second positioning portion 64 includes the four-segment curved flange 641 is shown), the multi-segment curved flange The 641 are arranged at equal intervals along the outer circumference of the top connecting plate 63 to define a receiving space matching the connecting end of the fixed shaft 20 at the surface of the top connecting plate 63 by the spaced-apart plurality of curved flanges 641.
  • the curved flange 641 can be engaged with the outer peripheral surface of the connecting end portion of the fixed shaft 20 to position the fixed shaft 20. That is, when the stator 10 is supported by the top connecting plate 63, the indirect cooperation of the second positioning portion 64 with the stator 10 can restrict the movement of the stator 10 relative to the top connecting plate 63, so that the fixed shaft 20 can be more smoothly aligned. Subsequent connection operation is performed with the top connecting plate 63, and the stability of the connection can be further ensured.
  • the multi-section curved flange 641 can also be arranged to mate with the inner circumferential surface of the fixed shaft 20 for positioning the fixed shaft 20.
  • the top connecting plate 63 serves as a receiving portion for supporting the stator 10, but the embodiment of the present disclosure is not limited thereto.
  • the receiving portion may also be in the form of other plates or brackets disposed on the support base 60, and the support is achieved by other forms of plates or brackets.
  • the support base 60 can also directly support the stator 10 through the stator bracket 11.
  • the support base 60 may be other column or plate structure as long as the stator 10 can be held at a predetermined height position by the receiving portion for subsequent assembly operations.
  • a plurality of annularly arranged connecting holes for connecting the supporting base 60 may be disposed in a substantially intermediate portion of the supporting end surface of the supporting platform 50 to support the connecting hole 60.
  • the platform 50 can be connected to different sizes of support bases 60, that is to say, different types of stators 10 can be supported by different types of support bases 60, so that the assembly tool can adapt to different types of generators, thereby improving assembly tooling. Flexible applicability.
  • the limiting device may include two or more limiting bodies, and the limiting body is a strip body arranged along a circumference spaced around a predetermined axis, and the guiding surface is formed On the curved surface or plane of the strip body facing away from the accommodating space; and the fixed pedestal is a block body arranged at intervals along the circumference.
  • the strip-shaped body constituting the limiting body and the block-shaped body constituting the fixed support are connected in a one-to-one correspondence, and a structure composed of one strip-shaped body and one block-shaped body is used for convenience of explanation. It is called a limit unit 70.
  • the limiting device includes a plurality of limiting units 70 arranged around a predetermined axis (ie, around the supporting base 60), so that the accommodating space can be defined by the plurality of limiting units 70 on a side facing away from the predetermined axis, and the supporting base
  • the seat 60 is located substantially in the middle of the accommodation space.
  • the plurality of limiting units 70 are arranged on the support platform 50 in an array around a predetermined axis, that is, the plurality of limiting units 70 are arranged at equal intervals along the circumferential direction of the support platform 50.
  • the follow-up guiding device includes a connecting portion, a supporting portion, and a first abutting portion and a second abutting portion connected to the connecting portion through the supporting portion, the first abutting portion being opposite to the connecting portion
  • the first abutment extends and the second abutment extends in the second direction relative to the connecting portion.
  • the set of the rotor 30 and the stator 10 is divided into two sets of stages, and in the first set stage, the first abutting portion and the second abutting portion are limitedly engaged with the outer peripheral surface of the stator 10; In the second set phase, the first abutting portion and the second abutting portion are engaged with the guiding surface of the limiting unit 70 to keep the air gap formed between the stator 10 and the rotor 30 constant.
  • the set path of the control rotor 30 is realized.
  • the radial sway of the rotor 30 is avoided, and the radial deformation of the rotor 30 is prevented.
  • the first abutting portion and the second abutting portion are required to be circumferentially between the outer peripheral surface of the stator 10 and the guiding surface of the limiting device. At least three contact points are formed that are evenly distributed.
  • the follower guiding device includes a plurality of Each of the follower guiding units 80, for example, each of the follower guiding units 80 forms a contact point with the outer peripheral surface of the stator 10 and the guiding surface of the limiting unit 70, respectively, and the configuration of each of the following guiding units 80 the same.
  • the embodiment of the present disclosure does not limit the number of the setting units 70 in the restriction device and the number of the follow-up guiding units 80 in the follower guide.
  • the distribution position of the guiding surface of the limiting device is determined by the distribution position of the plurality of follower guiding units 80 on the rotor 30. That is, when the rotor 30 is set on the stator 10, it is necessary to connect at least three follower guiding units 80 at equal intervals in the circumferential direction of the rotor 30; correspondingly, in the present embodiment, the limiting unit 70 and the follower guiding unit 80
  • the limiting device includes at least three limiting units 70. Therefore, in the second set phase, the follower guiding unit 80 can be abutted in a one-to-one correspondence with the limiting unit 70, thereby ensuring that the air gap formed between the rotor 30 and the stator 10 is constant.
  • the limiting device includes six limiting units 70, and the configuration of each of the limiting units 70 is the same.
  • each of the limiting units 70 includes a support unit 71, a vertical plate 72, and a support rib 73.
  • the limiting unit 70 can be connected to the support platform 50 through the support unit 71.
  • the support unit 71 has a plate shape, and the support unit 71 is provided with a connection hole corresponding to the connection hole on the support platform 50.
  • a mounting hole corresponding to each of the limiting units 70 is provided on the supporting end surface of the supporting platform 50, and a connecting hole corresponding to the connecting hole on the bearing unit 71 is provided, so that the bearing unit 71 can be quickly connected by the bolt assembly.
  • the support platform 50 can also provide strong support for the limiting unit 70 through the support platform 50.
  • the specific shape of the support unit 71 is not limited in the embodiment of the present disclosure, and the support unit 71 may be a circular, square or the like plate body.
  • the riser 72 is connected to the stand unit 71 in a one-to-one correspondence.
  • the riser 72 is coupled to the holder unit 71 via the support ribs 73.
  • the support ribs 73 are substantially triangular and are fixed to the support unit 71 by one side edge thereof, and the vertical board is connected by the other side edge adjacent to the side edge. 72.
  • the vertical plate 72 is a rectangular plate body, and the vertical plate 72 is connected to one side surface of the support unit 71 through the support rib 73, and extends away from the support unit 71 to connect the support unit 71.
  • a guiding surface extending along a predetermined axis can be formed by a side surface of the vertical plate 72 facing away from the predetermined axis (ie, facing away from the accommodating space), so the guiding surface is formed on the backing of the vertical plate 72. Set the plane on one side of the space.
  • the corresponding plurality of vertical plates 72 can be connected to the support platform 50 by the plurality of support units 71, and the plurality of vertical plates 72 are arranged on the support platform 50 in a circumferential array around the predetermined axis, each The vertical plates 72 form a guide surface having the same distance from the predetermined axis.
  • the fixed support of the limiting device comprises a plurality of block-shaped bearing blocks 71 arranged around the predetermined axis and arranged in an array on the periphery of the supporting platform 50; and the limiting body is connected A riser 72 on the support unit 71.
  • FIG. 4 is an enlarged schematic partial view of a portion A of FIG. 1;
  • FIG. 5 is a schematic perspective view of the follower guiding unit 80 of the assembly tool of FIGS. 1 and 4;
  • FIG. 6 is a follow-up guiding unit 80 of FIG. Schematic diagram of the left view structure.
  • the follow-up guiding device may include six follower guiding units 80 , and each of the following guiding units 80 includes: a connecting body 81 and a cage. 82. First contact member 83 and second contact member 84.
  • the follower guiding unit 80 can be coupled to the rotor 30 through the connecting body 81, and the holder 82 is coupled to the connecting body 81 and connected to the first contact 83 and the second contact 84, respectively, and the first contact 83 and the first contact
  • the two contacts 84 are offset from each other. Therefore, the first abutment of the follower guide includes three or more first contacts 83, and the second abutment also includes three or more second contacts 84.
  • the connecting portion includes three or more connecting bodies 81, and the connecting body 81 has a block shape. And the support portion includes three or more holders 82.
  • the plurality of connecting bodies 81 are correspondingly connected to the plurality of first contacts 83 and the plurality of second contacts 84 by a plurality of holders 82, and the first contacts 83 and the second contacts 84 all extend in the first direction Connected to the body 81.
  • the follower guiding unit 80 includes the first contact member 83 and the second contact member 84, the first of the follower guiding unit 80 is controlled when the set path of the rotor 30 is controlled by the follower guiding device and the limiting device.
  • the contact member 83 and the second contact member 84 can simultaneously contact the outer peripheral surface of the stator 10 or the guide surface of the stopper unit 70, so that the set path of the rotor 30 can be further controlled while also improving the smoothness of the movement of the rotor 30. To avoid radial sway of the rotor 30.
  • the connecting body 81 has a body 811 having a plate shape, and the main body 811 is provided with a connecting hole 811a arranged in an arc shape along one side edge thereof, and the connecting hole 811a is arranged in an arc shape, passing through the main body 811.
  • the connection hole 811a can be adapted to the curvature of the yoke 31. Therefore, the connecting body 81 can be fixedly connected by the bolt assembly via the connecting hole 811a on the main body 811 and the axial end surface of the yoke 31 (ie, the side of the yoke 31 away from the inclined support 33).
  • the connecting hole 811a can be fixedly connected by the bolt assembly via the connecting hole 811a on the main body 811 and the axial end surface of the yoke 31 (ie, the side of the yoke 31 away from the inclined support 33).
  • the body 811 is further provided with a first positioning portion 812.
  • the first positioning portion 812 is an arcuate flange.
  • the arcuate flange is connected to the edge of the main body 811 on the side where the connection hole 811a is provided, and the arcuate flange is closer to the outer side with respect to the connection hole 811a, and the curvature of the arc of the arcuate flange also needs to correspond to the curvature of the yoke 31. Settings.
  • the main body 811 when the main body 811 is coupled to the yoke 31 of the rotor 30, the main body 811 can be attached to the axial end surface of the yoke 31 in the axial direction, and the curved flange abuts against the inner circumferential surface of the yoke 31 ( As shown in Figure 4). Therefore, when the follower guiding unit 80 is coupled to the rotor 30 through the connecting body 81, the connecting position of the connecting body 81 can be quickly determined by the abutting action of the first positioning portion 812 and the inner peripheral surface of the yoke 31. Therefore, the assembly efficiency of the assembly tool can be improved, and the assembly time of the generator can be further saved.
  • the first positioning portion 812 may also be configured to abut against the outer circumferential surface of the yoke 31.
  • the first positioning portion 812 may also be an arc-shaped flange provided on the main body 811, but differs from the manner in which the first positioning portion 812 abuts against the inner circumferential surface of the rotor 30 in the connection hole 811a.
  • the first positioning portion 812 can abut against the outer circumferential surface of the rotor 30 when the main body 811 is connected to the outer end surface of the yoke 31.
  • the follower guiding unit 80 and the limiting unit 70 are engaged with each other, the purpose of quickly positioning the connecting body 81 can be achieved by the first positioning portion 812 abutting against the outer peripheral surface of the yoke 31.
  • two first positioning portions 812 may be simultaneously disposed on the main body 811, and the two first positioning portions 812 can simultaneously be combined with the inner circumferential surface of the rotor 30 and The outer peripheral surface is abutted.
  • a groove may be formed in the main body 811, and the shape of the groove may be configured to receive the axial end portion of the yoke 31, so that the two side walls of the groove can serve as the two first positioning portions 812, respectively.
  • the purpose of abutting against the outer peripheral surface and the inner peripheral surface of the rotor 30 makes it possible to connect the connecting body 81 to the rotor 30 more stably.
  • FIG. 7 is a schematic structural view of the retainer 82 in the follower guiding unit 80 of FIGS. 4 to 6;
  • FIG. 8 is a schematic structural view of the support shaft 831 in the follower guiding unit 80 of FIGS. 4 to 6; 4 to the structural schematic diagram of the roller 832 in the follower guiding unit 80 of FIG.
  • the first contact member 83 and the second contact member 84 are detachably connected to the connecting body 81 through the retainer 82 to pass the first contact through the retainer 82.
  • the member 83 and the second contact member 84 are supported.
  • the body of the cage 82 includes two support plates 821 that are parallel and spaced apart from each other, each support plate 821 having an elongated region and an enlarged region, wherein the enlarged region is provided with a mounting opening 822, ie, at the support plate A side edge of the 821 is spaced apart from the strip-shaped pressing portion 823 to form a mounting opening 822 between the pressing portion 823 and the support plate 821, and the mounting opening 822 forms an opening on one side of the support plate 821.
  • the elongated region extends in a direction perpendicular to the mounting opening 822, a mounting hole 824 is defined in the transition portion of the enlarged region and the elongated region, and a mounting hole 825 is defined in the end of the elongated region away from the mounting opening 822.
  • connection body 81 can be simultaneously inserted into the mounting opening portion 822 of the two holders 82 by the edge of the side away from the connection hole 811a, thereby fixing the holder 82 and the connection body 81 to each other.
  • the length of the pressing portion 823 on the main body 811 needs to avoid the connecting hole 811a, thereby avoiding interference with the connection between the connecting body 81 and the yoke 31.
  • the connection manner of the connecting body 81 and the retainer 82 is not limited thereto. In other embodiments, the connecting body 81 and the retainer 82 may also be connected by a screw connection.
  • the first contact 83 of the follower guiding unit 80 includes a first rolling body
  • the second contact 84 includes a second rolling body, that is, the following guiding unit 80 respectively passes the first rolling
  • the body and the second rolling body are in rolling engagement with the outer circumferential surface of the stator 10 and the guiding surface of the limiting unit 70.
  • the first contact 83 includes a support shaft 831 and a roller 832 , wherein the roller 832 is rotatably fitted to the support shaft 831 , and the support shaft 831 is fixedly coupled to the retainer 82 .
  • the second contact member 84 includes a support shaft 841 and a roller 842, wherein the roller 842 is rotatably fitted to the support shaft 841, and the support shaft 841 is fixedly coupled to the retainer 82. Since the configuration and the connection manner of the first contact member 83 and the second contact member 84 are the same, only the second contact member 84 will be described in detail as an example. Referring to FIG.
  • the support shaft 841 is provided with a shoulder 841a and a locking opening 841b, wherein the shoulder 841a is disposed at one end of the support shaft 841 in the axial direction, and the locking opening 841b is at the support shaft
  • the outer surface of the 841 has a slit opened in the radial direction, and the lock port 841b is adjacent to the other end portion of the support shaft 841 in the axial direction.
  • the support shaft 841 is fixed on the retainer 82 in such a manner that the support shaft 841 simultaneously passes through the mounting holes 825 provided on the two support plates 821 of the retainer 82, so that the two support plates 821 are parallel to each other and spaced apart.
  • the distance, and the shoulder 841a forms a snap fit with the outer side surface of one of the support plates 821 to limit the support shaft 841.
  • the locking opening 841b is exposed outwardly from the mounting hole 825 of the other supporting plate 821, and the follower guiding unit 80 further includes a locking plate 85 which is inserted by fitting the locking plate 85 to the outer side of the supporting plate 821.
  • the support shaft 841 can be locked in the lock port 841b to prevent the support shaft 841 from moving in the mounting hole 824 in the axial direction, that is, the support shaft 841 is fixed to the retainer 82 by the lock plate 85 cooperating with the support shaft 841.
  • the present disclosure does not limit the specific structure of the lock plate 85, as long as the lock plate 85 can be attached to the outer side surface of the support plate 821 and at least partially inserted into the lock port 841b, thereby supporting The shaft 841 is locked to the mounting hole 825 of the support plate 821. Since the support shaft 841 can be easily and quickly fixed to the holder 82 by the lock plate 85, the assembly efficiency of the follower guide unit 80 can be improved.
  • the roller 842 is annular in shape and has a shaft hole adapted to the support shaft 841 .
  • the roller 842 is rotatably sleeved on the support shaft 841 through the shaft hole and is located on the two support plates 821 . between.
  • the roller 842 includes an inner ring 842a and an outer ring 842b, the inner ring 842a and the outer ring 842b are coaxially sleeved and abut each other, and the inner ring 842a and the outer ring 842b pass each other by a set screw 842c Fixed so that relative rotation between the inner ring 842a and the outer ring 842b is not possible.
  • the inner ring 842a and the support shaft 841 can be directly slidably engaged or can be rolled and engaged by bearings.
  • the roller 832 and the roller 842 are mounted on the support shaft 831, the roller 832 protrudes from the main body 811 in the first direction, and the roller 842 also protrudes from the main body 811 in the first direction. That is, after the follower guiding unit 80 is coupled to the rotor 30, the roller 832 and the roller 842 can simultaneously project radially inwardly from the rotor 30.
  • the inner ring 842a and the outer ring 842b may be disposed to have different materials.
  • the material of the inner ring 842a may be metal, such as copper; and the material of the outer ring 842b may be plastic, such as nylon.
  • the structural strength of the roller 842 can be ensured by the inner ring 842a, and at the same time, when the outer ring 842b is in contact with the guiding surface of the limiting unit 70 and the outer peripheral surface of the stator 10, the wear can be minimized, and the stator 10 can be avoided.
  • the outer peripheral surface causes wear.
  • the second contact member 84 can also include only one ring body, and a ring body can be directly fitted on the support shaft 841.
  • the second contact member 84 may also be a one-piece structure, that is, the support shaft 841 and the roller 842 are configured as a unitary structure, but it should be noted that the fixing manner of the support shaft 841 and the retainer 82 needs to be adjusted at this time.
  • a locking port 841b may be respectively disposed at two end positions of the support shaft 841 in the axial direction, and the two support plates 821 are respectively disposed from the both ends of the support shaft 841 to the support shaft.
  • first rolling body of the first contact member 83 and the second rolling body of the second contact member 84 may be other structures such as balls or bearings that can be in contact with other members in a rolling manner.
  • each connecting body 81 is not limited to connecting one first contact 83 and one second contact 84, and more first contacts 83 may be connected to each connecting body 81. And/or second contact 84.
  • the stator 10 when the rotor 30 needs to be assembled on the stator 10, the stator 10 needs to be supported above the accommodating space by the support base 60, and the outer circumferential surface of the stator 10 and the plurality of limiting units 70 are The guide faces are aligned in the axial direction, and the plurality of follower guide units 80 are connected to the axial end faces of the rotor 30 at equal intervals in the circumferential direction.
  • the rotor 30 on one axial side of the stator 10 is advanced by gravity along a predetermined axis toward the stator 10.
  • the roller 842 first abuts against the outer peripheral surface of the core 12, and then the roller above the roller 842.
  • the rotor 30 also abuts against the outer peripheral surface of the iron core 12, and at this time, the outer peripheral surface of the iron core 12 provides a limit action for the plurality of follower guiding units 80, and the rotor 30 continues to face under the guidance of the outer peripheral surface of the iron core 12.
  • the stator 10 is moved to ensure uniform air gap between the rotor 30 and the stator 10.
  • the roller 842 and the roller 832 further abut against the guiding surface of the limiting unit 70.
  • the guiding surfaces of the plurality of limiting units 70 provide a limit for the plurality of following guiding units 80.
  • the rotor 30 continues to move toward the stator 10 under the guidance of the guiding surface of the limiting unit 70, ensuring uniform air gap between the rotor 30 and the stator 10.
  • the fitting path of the rotor 30 can be restrained by the abutment action of the follower guiding unit 80 with the stator 10 and the limiting unit 70, and the cylindricity of the rotor 30 can be ensured, so that the stator 10 can be made in the setting process.
  • the air gap formed between the rotor 30 and the rotor 30 can be kept constant, so that it is possible to avoid the collision of the stator 10 with the rotor 30 or the radial fit to cause friction. It is possible to prevent the magnetic poles 32 of the rotor 30 and the iron core 12 of the stator 10 from being damaged, thereby saving the assembly man-hour of the generator and reducing the assembly cost.
  • the limiting body is a rectangular plate body, but the embodiment of the present disclosure is not limited thereto, and the limiting body may also be other strip bodies. That is to say, in other modified embodiments, the limiting body may be replaced by an arc-shaped plate body extending in a horizontal direction by a predetermined length, or the limiting body may be replaced with a long-shaped block-shaped structure, as long as it is One or more guiding faces extending along a predetermined axis can be formed on the side facing away from the accommodating space by the limiting body.
  • the guiding surface can be a curved surface or a plane as long as the guiding surface extends along a predetermined axis and can cooperate with the follow-up guiding device to guide the follow-up guiding device to move along a predetermined axis.
  • the distances of the plurality of guiding faces of the limiting body to the predetermined axis are the same, but in other alternative embodiments, the distances of the plurality of guiding faces to the predetermined axis may also be different.
  • the air gap between the rotor 30 and the stator 10 is kept uniform in the axial direction. can.
  • the limiting device includes three upper limit bodies, that is, the limiting body is a vertical plate 72 connected to the bearing unit 71, and each of the vertical plates 72 has the same configuration, but Embodiments of the present disclosure are not limited thereto. In other modified embodiments, the limiting device may further include two limiting bodies.
  • each limiting body is configured to be along the circumferential direction of the supporting platform 50 (ie, at a predetermined axis)
  • An arc-shaped plate body of a predetermined length is extended for the circumference of the center line, and the two arc-shaped plate bodies are arranged apart from each other along the circumferential direction of the support platform 50 to ensure that the limiting device can be separated from the two limiting bodies
  • One side of the space forms a guiding surface that cooperates with the follower guide.
  • the structure of each limiting body may also be different.
  • the support unit 71 of the fixed support is not limited to a plate structure. In other modified embodiments, the support unit 71 can also be other block or frame-like structures, as long as it can pass.
  • the support unit 71 supports the limit body on the support platform 50.
  • the support unit 71 can also be directly fixed to the outer peripheral surface of the support platform 50 by welding, or the support unit 71 can be connected to other structures extending outward from the support platform 50, as long as multiple
  • the holder unit 71 may be arranged substantially annularly around the support base 60.
  • the fixed holder includes three or more blocks
  • each of the holder units 71 has the same configuration.
  • the fixed support can also be provided with two support units 71 corresponding to the two limit bodies; or the fixed support can also be continuous along the circumferential direction of the support platform 50.
  • the extended annular body, at this time, the plurality of limiting bodies can be simultaneously supported by the fixed support of the annular body.
  • the structure of each of the support units 71 may also be different.
  • the holder 82 has an enlarged area and an elongated area, but embodiments of the present disclosure are not limited thereto.
  • the cage 82 can also be triangular, circular, quadrilateral or other irregular shape.
  • the positions of the first contact member 83 and the second contact member 84 that is, the mounting positions of the mounting hole 824 and the mounting hole 825 on the holder 82, are not limited in the embodiment of the present disclosure.
  • the mounting position of the mounting hole 824 is sufficient, and when the support shaft 831 and the roller 832 are coupled to the retainer 82, the roller 832 can protrude from the connecting body 81 and the stator in the first direction.
  • the outer peripheral surface of the 10 and the guiding surface of the limiting unit 70 are matched; similarly, the mounting position of the mounting hole 825 is satisfied, and when the supporting shaft 841 and the roller 842 are coupled to the retainer 82, the protruding position can be extended in the first direction.
  • the body 81 is coupled to the outer peripheral surface of the stator 10 and the guiding surface of the limiting unit 70.
  • embodiments of the present disclosure are not limited to the form including two support plates 821.
  • the retainer 82 may also be configured to be connectable with the connection body 81 and capable of Any structure supporting the first contact 83 and the second contact 84 is supported.
  • the main body 811 of the connecting body 81 is not limited to the plate body structure described in the above embodiment, and the main body 811 may be other structures.
  • the main body 811 may also be a connecting lug extending from the retainer 82, and the bolting assembly may also be used to connect the connecting lug to the axial end face of the yoke 31.
  • the connecting body 81 is coupled to the axial end surface of the yoke 31 by bolts, but the embodiment of the present disclosure is not limited thereto, and in other alternative embodiments, it will be understood that The connecting body 81 can also be connected to the yoke 31 in other possible ways, for example, by welding, snapping or the like.
  • the follow-up guiding device can also cooperate with the guiding surface of the limiting unit 70 by means of sliding contact, and the set of the controlling rotor 30 can also be realized by the matching of the limiting unit 70 and the follow-up guiding unit 80.
  • the connecting portion of the follow-up guiding device can also be configured as a unitary structure, that is to say, the connecting portion can also be a continuous annular structure, for example, an annular connecting plate.
  • the first abutting portion also includes a plurality of first contact members 83.
  • the plurality of retainers 82 can be inserted into the annular connecting plate via the respective mounting mouth portions 822, and the first contact members 83 and The second contacts 84 protrude from the opposite sides 81 on opposite sides, respectively.
  • the retainer 82 can also be configured in an annular configuration as long as the plurality of first contacts 83 and the plurality of second contacts 84 are respectively connected to the connecting body 81.
  • first abutment and/or the second abutment of the follow-up guiding device can also be configured as a unitary structure, that is to say, the first abutment of the follow-up guiding device
  • the second abutment may also be a continuous annular structure.
  • the first abutting portion and/or the second abutting portion may further include a sleeve and two or more rolling bodies uniformly arranged in the circumferential direction on the inner circumferential surface of the sleeve, and in this case, refer to the following embodiment.
  • the guiding unit 80 is connected to the rotor 30, that is, the sleeve is connected to the rotor 30 through a plurality of connecting bodies 81.
  • the plurality of connecting bodies 81 can be connected to the sleeve by screwing or by welding. Two or more rolling bodies are projected radially outward from the rotor 30. Therefore, the rolling path of the outer circumferential surface of the sleeve and the guiding surface of the limiting unit 70 can be restrained by the rolling elements disposed on the outer circumferential surface of the sleeve to restrain the winding path of the rotor 30, thereby avoiding the rotor 30 in the setting process. Radial sloshing occurs in the middle of the collision with the stator 10.
  • the assembly tool may not include the support platform 50. If the construction site itself has a flat surface, the flat surface of the construction site may be used as a support plane, and other components of the assembly tool are placed on the flat surface.
  • the assembly tool 60 may not include the support base 60. It is understood that in other embodiments, when the stator 10 and the rotor 30 are assembled, the stator 10 may be supported by other support or lifting devices. The space is placed above and the stator 10 is held at a predetermined height position.
  • Figure 10 is an enlarged schematic view showing a partial structure of a portion B of Figure 1;
  • Figure 11 is a perspective view showing a positional holding unit 90 of the assembling tool of Figures 1 and 10.
  • the assembly tool further includes a position maintaining device including a mating connection with the first mating portion of the rotor 30 along the circumferential direction of the rotor 30 .
  • first mounting portion and a second mounting portion that is engageably coupled to the second mating portion of the stator 10, the first mounting portion and the second mounting portion being coupled to each other such that the stator is completed by the first mounting portion and the second mounting portion 10 and the rotor 30 are positioned relative to each other to prevent relative movement of the stator 10 and the rotor 30.
  • the first mounting portion is connected to the first mating portion by clamping
  • the second mounting portion is connected to the second mating portion by fastening.
  • the position maintaining device simultaneously forms a plurality of connection points with the stator 10 and the rotor 30.
  • the position holding device includes a plurality of position maintaining units 90, the position holding unit 90 and the stator 10 and the rotor 30 respectively form a connection point.
  • the position maintaining device of the present embodiment includes six position holding units 90, and the configuration of each position holding unit 90 is the same.
  • the embodiment of the present disclosure does not limit the number of positions of the position maintaining unit 90, and the position maintaining device includes at least three position holding units 90 so that at least three position holding units 90 can be connected to the stator 10 at equal intervals in the circumferential direction. Between the rotor 30 and the rotor 30, the purpose of fixing the stator 10 and the rotor 30 to each other is achieved.
  • the first fitting portion of the rotor 30 is a rotor-side fixing ring 332 that is coupled to the inner surface of the oblique support 33 of the rotor 30 and extends in the axial direction of the rotor 30 by a predetermined length.
  • the second fitting portion of the stator 10 is a stator-side flange 112 that is coupled to one end of the stator holder 11 in the axial direction and extends in the radial direction of the stator 10 by a predetermined length.
  • each position holding unit 90 includes a rotor fixture 91 and a stator fixture 92 that are connected to each other.
  • the rotor fixture 91 includes a support block 911 having a strip-shaped body, and a support body 911 having a strip-shaped body, and one side of the strip-shaped body forms a joint end face connected to the stator fixture 92, and is disposed on a side facing away from the joint end face There are two projections.
  • the rotor fixing member 91 includes two clamping blocks 912.
  • the two clamping blocks 912 are block-shaped, and the two clamping blocks 912 are respectively disposed on the two protruding portions and are parallel to the support. The direction of the connecting end face of the block 911 extends.
  • the clamping block 912 is substantially U-shaped, that is, the clamping block 912 has a clamping opening 912a (the opening direction of the clamping opening 912a is set to the second direction, that is, the axial direction of the stator 10 and the rotor 30), and
  • the clamping blocks 912 are respectively welded to the projections of the support block 911 by the end faces facing away from the side of the clamping opening 912a.
  • the support block 911 and the clamping block 912 can also adopt a one-piece structure.
  • each position holding unit 90 can be clamped to the end of the rotor side fixing ring 332 away from the inclined support 33 by the clamping opening 912a of the clamping block 912, and three or more position maintaining units 90 can pass through the respective
  • the clamp blocks 912 are connected to the rotor side stationary ring 332 at equal intervals in the circumferential direction of the rotor 30.
  • the stator fixture 92 includes a support block 921 and a fixed block 922, and the support block 921 also has a strip-shaped body, and one side of the strip body has a connection to the rotor mount 91
  • the end surface can be joined to each other through the connecting end surface of the support block 911 and the connecting end surface of the support block 921, and the support block 921 is provided with a connecting hole 921a, so that a bolt can be used to pass through the connecting hole 921a and the corresponding threaded hole on the supporting block 911.
  • the support block 911 and the support block 921 are fixedly connected.
  • the fixing block 922 is an arc-shaped plate body, and the fixing block 922 is disposed on the support block 921 and extends in a direction parallel to the connecting end face of the support block 921.
  • the fixing block 922 is provided with a connection hole 922a in a third direction perpendicular to the second direction (i.e., the radial direction of the stator 10 and the rotor 30).
  • each position maintaining unit 90 can be attached to the radially inner surface of the stator side flange 112 through the fixing block 922 of the stator fixing member 92, and the fixing block 922 can be connected to the stator side method via the connecting hole 922a by bolts.
  • the blue 112, and three or more position holding units 90 can be connected to the stator side flange 112 at equal intervals in the circumferential direction of the stator 10 through the respective fixing blocks 922.
  • the first mounting portion of the position maintaining device includes three or more holding blocks 912, and the second mounting portion includes three or more fixing blocks 922.
  • the rotor fixing member 91 may further include only one clamping block 912. At this time, one clamping block 912 is annular, and the clamping opening 912a is opened on the clamping block 912. The annular groove is also able to achieve the purpose of clamping the rotor-side retaining ring 332 through the clamping opening 912a.
  • the stator fixing member 92 may further include only one fixing block 922. At this time, one fixing block 922 is annular, and needs to be uniformly arranged in the circumferential direction on the outer ring surface of the fixing block 922. The plurality of connection holes 922a are also capable of achieving a secure connection with the stator side flange 112 by the fixing block 922.
  • first fitting portion of the rotor 30 and the second fitting portion of the stator 10 are not limited to the rotor-side fixing ring 332 and the stator-side flange 112 mentioned in the above embodiments of the present disclosure.
  • first mating portion of the rotor 30 may also be other continuous or intermittent annular structures disposed on the inclined support 33 of the rotor 30 or the inner surface of the yoke 31, and the ring shape The structure may extend in the axial or radial direction of the rotor 30.
  • the second mating portion of the stator 10 may also be other continuous or intermittent annular structures disposed at the axial ends of the stator support 11 of the stator 10, and the annular structure may also be along the axial or radial direction of the stator 10. extend.
  • the structures of the first mounting portion and the second mounting portion of the position maintaining device are also interchangeable, that is, the first mounting portion may further include a plurality of fixing blocks 922, and the threaded connection is adopted.
  • the first fitting portion of the rotor 30 is coupled to the first mating portion of the rotor 30, and the second mounting portion may further include a plurality of clamping blocks 912 for attachment to the second mating portion of the stator 10.
  • the limiting device may further include a limiting body.
  • the fixing support in this embodiment is the same as the above embodiment, and includes a plurality of supporting seats. Body 71.
  • the limiting body is an annular plate body 74 centered on a predetermined axis.
  • the plurality of support units 71 are arranged at equal intervals along the circumferential direction of the support platform 50.
  • the annular plate body 74 can be simultaneously connected to the plurality of support units 71 to be annularly formed by the plurality of support units 71.
  • the plate body 74 is coupled to the support platform 50 and causes the axis of the annular plate body 74 to coincide with a predetermined axis.
  • the annular plate body 74 is surrounded by the outer side of the plurality of support units 71, and the guide surface is formed on the annular surface of the annular plate body 74 facing away from the accommodating space, that is, outside the annular plate body 74. surface.
  • the fixed support may also be an annular connecting plate, that is, the annular plate body 74 may also be supported on the support platform 50 by an annular connecting plate.
  • the plurality of vertical plates 72 of the above embodiment can also be supported by the annular connecting plate, that is, a plurality of vertical plates are simultaneously 72 is disposed on the annular connecting plate to connect the plurality of vertical plates 72 to the supporting platform 50 at equal intervals along the circumferential direction of the supporting platform 50 through the annular connecting plate.
  • FIG. 13 is a schematic structural view of a first step of the stator 10 and the rotor 30 according to an embodiment of the present disclosure
  • FIG. 14 is a schematic structural view of the second step of the stator 10 and the rotor 30 of FIG. 13
  • FIG. FIG. 16 is a schematic structural view of a fourth step of assembling the stator 10 and the rotor 30 of FIG. 13
  • FIG. 17 is a schematic view of the stator 10 and the rotor 30 of FIG.
  • FIG. 18 is a schematic structural view of a sixth step of the stator 10 and the rotor 30 of FIG. 13
  • FIG. 19 is a schematic structural view of the seventh step of the stator 10 and the rotor 30 of FIG.
  • FIG. 20 is a schematic structural view of the eighth step of assembling the stator 10 and the rotor 30 in FIG.
  • a method of assembling a generator that is, an assembly tool auxiliary generator as described in the above embodiment is used for assembly, and a method of assembling the generator is described in the following substeps. It should be noted that the following is only for the assembly method of the assembly tool provided in the drawings. For the modified embodiment of the assembly tool, the following description can be adjusted accordingly.
  • step S100 the assembly tooling in the above embodiment is provided, as shown in FIG.
  • the support platform 50 needs to be placed on the construction site of the generator first. It should be noted that in order to facilitate the subsequent assembly operation, the supporting end face of the support platform 50 is required. The horizontal state is maintained, and the center axis of the support platform 50 is set to a predetermined axis in which the stator 10 and the rotor 30 are fitted to each other. The support base 60 is then placed in a substantially intermediate position of the support platform 50 such that the top web 63 of the support base 60 faces the side facing away from the support platform 50 and as much as possible ensures the axis of the support base 60 and the support platform 50. overlapping.
  • the plurality of limiting units 70 in the limiting device are arranged around a predetermined axis, that is, the plurality of limiting units 70 are connected to the outer circumference of the supporting platform 50 at equal intervals in the circumferential direction through the bearing unit 71, thereby being capable of passing through a plurality of
  • the limiting unit 70 defines an accommodation space.
  • the guiding faces of each of the limiting units 70 are all facing away from the accommodating space, and the plurality of guiding faces extend along a predetermined axis and surround the predetermined axis at equal intervals.
  • step S101 the stator 10 is supported above the accommodating space, and the axis of the stator 10 is coincident with the predetermined axis, while the outer circumferential surface of the stator 10 and the guiding surfaces of the plurality of limiting units 70 are aligned along the axial direction of the stator 10. , as shown in Figure 14.
  • the stator 10 can be supported above the accommodating space. Specifically, the stator 10 and the fixed shaft 20 are first connected to each other, and then the axial end surface of the fixed shaft 20 and the top connecting plate 63 are attached to each other, and the fixed shaft 20 and the top connecting plate 63 are fixedly connected via a bolt assembly, thereby 10 supports the support base 60, that is, the stator 10 is held at a predetermined height position above the accommodation space.
  • the guiding device composed of the guide shaft 1 and the sliding sleeve 2 in the prior art can be used, wherein the guiding shaft 1 is connected to the fixed shaft 20, and the sliding sleeve 2 is used. It is connected to the rotor 30 to further ensure the smoothness of the stator 10 and the rotor 30 during the assembly process.
  • the guide shaft 1 is substantially a hollow cylinder and has one end open.
  • step S102 the follower guiding device is coupled to the rotor 30 through the connecting portion such that the first abutting portion projects toward the outside of the rotor 30 in the radial direction of the rotor 30, as shown in FIG.
  • the follower guide needs to be connected to the rotor 30 to be fitted.
  • the plurality of follower guiding units 80 in the follower guiding device are connected to the axial end of the yoke 31 in the axial direction through the respective connecting bodies 81, and are fixedly connected to the yoke 31 by using a bolt assembly, so that a plurality of The follower guiding units 80 are equally spaced along the circumferential direction of the yoke 31 such that the first contacts 83 of the plurality of follower guiding units 80 (i.e., the rollers 832) respectively protrude radially toward the inside of the rotor 30, while The second contact members 84 (i.e., the rollers 842) project radially toward the interior of the rotor 30, respectively.
  • the sliding sleeve 2 is a hollow cylinder which is open at both ends, and can be connected to the connecting flange 331 provided on the inclined support 33 of the rotor 30 via the axial end of the sliding sleeve 2, thereby fixing the sliding sleeve 2 to the rotor 30. .
  • step S103 the rotor 30 is stacked on the axial side of the stator 10, and the rotor 30 is advanced toward the stator 10 along a predetermined axis as shown in FIG.
  • the step of assembling the rotor 30 and the stator 10 is performed. Specifically, after the sliding sleeve 2 is connected to the rotor 30, the hoisting device can be used to lift the rotor 30 to a certain height via the lifting lugs provided at the top of the sliding sleeve 2, so that the axes of the rotor 30 and the stator 10 are overlapped and axially spaced. Scheduled distance. The rotor 30 can then be lowered by the hoisting device to cause the rotor 30 to advance toward the stator 10 along its predetermined axis under its own gravity.
  • the sliding sleeve 2 is slidably engaged with the guide shaft 1 to assist the rotor 30 to move downward along the predetermined axis.
  • the coaxiality of the stator 10 and the rotor 30 can be further ensured during the setting process, and the gap requirement of the generator can be satisfied.
  • the distance between the rotor 30 and the stator 10 after lifting the rotor 30 should not be too high, so as to save the set man-hour and ensure that the rotor 30 can be smoothly fitted to the stator 10.
  • stator 10 and the sliding sleeve 2 may be used instead of the guide shaft 1 and the sliding sleeve 2, for example, after the stator 10 is supported by the supporting base 60, the hoisting device may be directly used to realize the rotor.
  • the hoisting and lowering operation of 30, the assembly of the stator 10 and the rotor 30 can also be completed by the assembly tooling of the embodiment of the present disclosure.
  • Step S104 the first abutting portion and the second abutting portion of the follow-up guiding device abut against the outer peripheral surface of the stator 10 and the guiding surface of the limiting device, and respectively move along the outer peripheral surface and the guiding surface to make the rotor 30 is fitted outside the stator 10 in a manner that the air gap between the stator 10 is kept constant, as shown in FIGS. 16 and 17.
  • the air gap formed between the rotor 30 and the stator 10 is kept constant during the fitting process by the follower guiding means and the limiting means being engaged with each other.
  • the assembly process of the stator 10 and the rotor 30 is divided into two stages.
  • the plurality of follower guiding units 80 connected to the axial ends of the rotor 30 first contact the stator 10 through the respective first contact members 83 and second contact members 84.
  • the sheath path of the rotor 30 is restrained and guided by the outer circumference of the stator 10, ensuring that the rotor 30 is fitted outside the stator 10 without radial sway along the predetermined axis while preventing the radial direction of the rotor 30. deformation.
  • the second follower guiding unit 80 connected to the axial end of the rotor 30 is second.
  • the contact member 84 will contact the guiding surface of the limiting unit 70, so that the following guiding member 80 can abut against the guiding surface of the limiting unit 70 located below the stator 10 through the second contact member 84. Since the follower guiding unit 80 can always follow the rotor 30 to move along the predetermined axis, the first contact 83 and the second contact 84 can simultaneously move downward along the guide. That is to say, in the second stage, the guiding path of the limiting unit 70 faces the winding path of the rotor 30 to ensure that the rotor 30 is fitted outside the stator 10 without a radial sway along the predetermined axis.
  • a support member may be provided on the support platform 50 to define a set-off position of the rotor 30 by the stop engagement of the support member with the rotor 30.
  • Step S105 the position maintaining device is coupled to the first mating portion of the rotor 30 through the first mounting portion, and is coupled to the second mating portion of the stator 10 through the second mounting portion to restrict movement of the stator 10 and the rotor 30 relative to each other. As shown in Figure 17.
  • the stator 10 and the rotor 30 can be relatively fixed by the position maintaining means.
  • the plurality of position maintaining units 90 in the position maintaining device may hold the rotor side fixing ring 332 through the clamping block 912 of the rotor fixing member 91; and the fixing block 922 and the stator side flange 112 passing through the stator fixing member 92. Fixed connection.
  • stator 10 and the rotor 30 can be fixed to each other, so that the stator 10 and the rotor 30 can be relatively stationary during the subsequent disassembly of the guiding device, the limiting unit 70, and the follower guiding unit 80, preventing the stator 10 and the rotor 30 from occurring. Radial fit.
  • step S106 the guide shaft 1 and the sliding sleeve 2 are removed, as shown in FIG.
  • the stator 10 and the rotor 30 After the stator 10 and the rotor 30 are placed in position with one another, it is first necessary to disengage the sleeve 2 from the oblique support 33 of the rotor 30 and then disengage the guide shaft 1 from the fixed shaft 20. Since the plurality of follower guiding units 80 still abut against the corresponding limiting unit 70 while the plurality of position maintaining units 90 are respectively coupled to the stator 10 and the rotor 30, the rotor 30 does not undergo any radial sway and deformation. Therefore, during this process, the air gap between the stator 10 and the rotor 30 is always constant.
  • step S107 the fixed shaft 20 is fixedly coupled to the rotating shaft 40, as shown in FIG.
  • the fixed shaft 20 and the rotating shaft 40 can be connected to each other.
  • the connecting flange 41 of the rotating shaft 40 and the connecting flange 331 provided on the inclined support 33 of the rotor 30 may be connected to fix the rotating shaft 40 and the rotor 30 to each other, and the rotating shaft 40 and the fixed shaft 20 are rotatably connected by bearings.
  • step S108 the assembly tool is removed, as shown in FIG.
  • the rotor 30 When the fixed shaft 20 and the rotating shaft 40 are fixed to each other, the rotor 30 can be stably supported on the outer side of the stator 10, and the assembly tool provided by the embodiment of the present disclosure can be removed, that is, the follow-up guiding device and the position are maintained.
  • the device is disengaged from the rotor 30 and the stator 10, respectively, and the stop device is removed from the support platform 50.
  • the end cover 34 of the generator can be connected to the axial end of the rotor 30 away from the side of the inclined support 33 to increase the rigidity of the rotor 30 through the end cover 34, thereby further ensuring the rotor.
  • the cylindricity of 30 it is also possible to place the end cover 34 on the support end surface of the support platform 50 before supporting the stator 10 to the support base 60, so that the installation of the end cover 34 can be completed simply and quickly, thereby saving the assembly man-hour of the generator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

L'invention concerne un outil d'assemblage et un procédé d'assemblage pour un générateur. Un élément entre un rotor et un stator du générateur sert d'élément sous gaine, et l'autre sert d'élément de gaine. L'outil d'assemblage comprend : un dispositif de limitation disposé autour d'un axe prédéterminé et définissant un espace de réception sur un côté faisant face à l'axe prédéterminé, le dispositif de limitation ayant une face de guidage faisant face à l'espace de réception et s'étendant le long de l'axe prédéterminé; et un dispositif de servo-guide comprenant une partie de liaison et une première partie de butée reliée à la partie de liaison, lorsque le dispositif de servo-guide est relié à l'élément de gaine au moyen de la partie de liaison, la première partie de butée peut s'étendre vers l'intérieur de l'élément de gaine dans une direction radiale de l'élément de gaine, la première partie de butée pouvant venir en butée contre une face périphérique de l'élément sous gaine et la face de guidage et se déplacer le long de la face périphérique et de la face de guidage, de telle sorte qu'un espace d'air entre l'élément de gaine et l'élément sous gaine est maintenu constant. Par conséquent, pendant la mise sous gaine de l'élément de gaine sur l'élément sous gaine, l'outil d'assemblage peut assurer l'uniformité de l'espace d'air entre l'élément de gaine et l'élément sous gaine, empêchant ainsi un endommagement d'un pôle magnétique de rotor et d'un noyau de stator du fait que l'élément de gaine est attiré vers l'élément sous gaine lorsqu'il s'approche de l'élément sous gaine.
PCT/CN2018/085317 2017-12-08 2018-05-02 Outil d'assemblage et procédé d'assemblage d'un générateur WO2019109587A1 (fr)

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EP4037165A4 (fr) * 2019-10-28 2022-11-16 Xinjiang Goldwind Science & Technology Co., Ltd. Ensemble de serrage et procédé d'assemblage pour moteur à aimant permanent

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CN107888037B (zh) * 2017-12-08 2019-08-09 北京金风科创风电设备有限公司 发电机的装配工装以及装配方法
CN109149887B (zh) * 2018-09-03 2019-08-02 北京金风科创风电设备有限公司 发电机的套装方法
CN109286288A (zh) * 2018-11-30 2019-01-29 卓弢机器人盐城有限公司 一种风力电机定子转子套装工装
CN110365170A (zh) * 2019-05-30 2019-10-22 西安中车永电捷力风能有限公司 一种永磁直驱风力发电机无垫条套装工装及其用途
CN110460207B (zh) * 2019-08-12 2024-02-27 江苏中车电机有限公司 用于直驱永磁风力发电机定子转子套装装置及套装方法
CN113086383B (zh) * 2019-12-23 2022-11-11 新疆金风科技股份有限公司 运输工装结构、带运输工装的分瓣电机模块及运输方法
CN113131688B (zh) 2019-12-31 2023-03-31 新疆金风科技股份有限公司 电机分瓣或组装装置、电机分瓣方法及电机组装方法
CN113067440B (zh) * 2021-03-11 2024-03-26 西安中车永电捷力风能有限公司 一种用于装配风力发电机的工装及其使用方法
CN112796952B (zh) * 2021-03-11 2023-11-24 西安中车永电捷力风能有限公司 一种用于装配风力发电机的免垫条工装及其使用方法

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CN112751462A (zh) * 2019-11-22 2021-05-04 襄阳中车电机技术有限公司 一种用于定子联线的立式支撑装置

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