CN109625558B - Generator auxiliary tool, generator transportation method and assembly method - Google Patents
Generator auxiliary tool, generator transportation method and assembly method Download PDFInfo
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- CN109625558B CN109625558B CN201811550886.1A CN201811550886A CN109625558B CN 109625558 B CN109625558 B CN 109625558B CN 201811550886 A CN201811550886 A CN 201811550886A CN 109625558 B CN109625558 B CN 109625558B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/10—Devices to locate articles in containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/68—Containers, packaging elements or packages, specially adapted for particular articles or materials for machines, engines or vehicles in assembled or dismantled form
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2585/00—Containers, packaging elements or packages specially adapted for particular articles or materials
- B65D2585/68—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form
- B65D2585/6802—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles
- B65D2585/6875—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles engines, motors, machines and vehicle parts
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- Mechanical Engineering (AREA)
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- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a generator auxiliary tool, a generator transportation method and an assembly method, wherein the generator auxiliary tool comprises a tool support, and the tool support is provided with a cladding surface for cladding the arc-shaped outer side surface of a split rotor, a first positioning piece for fixing the first end surface of the split rotor and a second positioning piece for fixing the second end surface of the split rotor; a containing cavity for containing the split rotor is formed among the covering surface, the first positioning piece and the second positioning piece; the accommodating cavity is open at the two circumferential ends of the cladding surface; still be equipped with the concatenation counterpoint piece that is used for the concatenation split rotor on the frock support, the counterpoint face of concatenation counterpoint piece with the axis that holds the cavity is parallel or the coincidence. The auxiliary tool for the generator can meet the protection requirements of the split rotor in multiple working procedures such as transportation, assembly and the like, and in different production stages, the tool for the split rotor does not need to be disassembled and reassembled, so that the production flow of the split rotor in the circulation process is simplified.
Description
Technical Field
The invention relates to the field of machinery, in particular to a generator auxiliary tool, a generator transportation method and an assembly method.
Background
The permanent magnet direct-drive wind driven generator has the advantage that the outer diameter size of the permanent magnet direct-drive wind driven generator is much larger than that of a double-fed wind driven generator under the condition of the same generator power because of a gearless transmission system. With the continuous increase of the power of the wind driven generator, the diameter of the permanent magnet direct drive type wind driven generator is increased, and when the diameter of the generator exceeds a certain limit value, road transportation is no longer possible. In order to solve the problem that the permanent magnet direct-driven wind driven generator is difficult to transport on roads due to overlarge overall dimension, the concept of the modularized generator is developed, the integral generator is divided into a plurality of generator units by carrying out split design on the generator, and the problem that the permanent magnet direct-driven wind driven generator is limited to transport on roads is solved by independently transporting one or more generator units.
The permanent magnet direct-drive wind driven generator has two structural forms of an outer rotor and an inner rotor, the rotor of the outer rotor permanent magnet direct-drive wind driven generator is positioned on the outer side of a stator, the diameter of an air gap of the generator is fixed, and the outer diameter of the rotor of the outer rotor permanent magnet direct-drive wind driven generator is larger than that of the rotor of the inner rotor permanent magnet direct-drive wind driven generator. Meanwhile, the outer rotor is exposed outside the generator, so that the structural layout is more limited, an excessively complex structure cannot be adopted, and otherwise, the rotor is easily over-heavy in mass and not concise and attractive in appearance. Therefore, when the outer rotor is designed in a split mode, a great difficulty is how to ensure that the rotor has enough rigidity in the split state so as to reduce the deformation in the rotor production process and ensure whether the split rotor can be finally assembled into a complete rotor.
Mechanical products often adopt the mode of auxiliary fixtures to strengthen self rigidity in the production process, reduce the deflection. Specifically, for a conventional permanent magnet direct-drive wind driven generator, different tools are adopted to meet specific requirements in different processes of transportation, assembly and the like, such as a transportation tool with a protection function and an anti-deformation function and an assembly tool with a lifting function, a positioning function and an anti-deformation function. However, when different processes of the wind driven generator are circulated, the original tool needs to be disassembled and then a new tool needs to be installed, and the wind driven generator is not protected by any tool in the tool replacing stage. The integral generator has a limited influence on the integral generator due to the good structural rigidity of the integral generator. However, when the rotor is designed to be split, the structural rigidity of the split rotor is reduced, and the split rotor is more easily deformed.
At present, different tools are respectively used in different processes of transportation, assembly and the like of a conventional permanent magnet direct-driven wind driven generator, when the permanent magnet direct-driven wind driven generator circulates among different processes in the production process, the tools need to be replaced for many times, the operation time is prolonged, and the generator does not have tool protection in the process transition stage.
Disclosure of Invention
Aiming at the defects of the existing mode, the invention provides the generator auxiliary tool suitable for the procedures of transportation, assembly and the like of the split rotor, the generator transportation method and the generator assembly method, so as to solve the problem that the tool needs to be replaced in the multiple procedures of transportation, assembly and the like of the split rotor.
The invention provides a generator auxiliary tool, which comprises a tool support, wherein the tool support is provided with a cladding surface for cladding the arc-shaped outer side surface of a split rotor, a first positioning piece for fixing a first end surface of the split rotor and a second positioning piece for fixing a second end surface of the split rotor; a containing cavity for containing the split rotor is formed among the covering surface, the first positioning piece and the second positioning piece; the accommodating cavity is open at the two circumferential ends of the cladding surface;
still be equipped with the concatenation counterpoint piece that is used for the concatenation split rotor on the frock support, the counterpoint face of concatenation counterpoint piece with the axis that holds the cavity is parallel or the coincidence.
Preferably, the first positioning element comprises a first connecting flange for wrapping a first end face of the split rotor, and a connecting face of the first connecting flange is perpendicular to an axis of the accommodating cavity.
Preferably, one surface of the first connecting flange is the connecting surface, and the other surface opposite to the connecting surface is fixedly connected with one end of the splicing aligning piece.
Preferably, the first connecting flange is a partially hollowed-out arched thin sheet, and the splicing alignment piece is fixed on a chord of the arched thin sheet; on a projection plane perpendicular to the axis of the accommodating cavity, the projection of the chord of the arched thin sheet and the projection of the cladding surface are parallel to each other.
Preferably, the second positioning element comprises a second connecting flange for fixing the second end face of the split rotor, and the second connecting flange is provided with a fixing hole.
Preferably, the second positioning member further comprises a plurality of connecting plates; the cross section of the second connecting flange, which is perpendicular to the axis of the accommodating cavity, is in a sector ring shape, and the connecting plates are uniformly fixed on the second connecting flange through the fixing holes.
Preferably, the tool support is further provided with one or more lifting lugs.
Preferably, the tool support is further provided with a fixing structure for fixing the tool support with a transport tool.
The invention further provides a generator transportation method, which comprises the step of transporting the split rotor of the generator by adopting any one of the generator auxiliary tools, wherein the split rotor is fixed in the accommodating cavity of the generator auxiliary tool.
Preferably, the generator auxiliary tool is fixed with the transport tool through a fixing structure.
The invention further provides a generator assembling method which comprises the step of assembling the split rotor of the generator by adopting the generator auxiliary tool, wherein the split rotor is fixed in the accommodating cavity of the generator auxiliary tool.
Preferably, the second positioning element comprises a second connecting flange for fixing the second end face of the split rotor, the second end face of the split rotor is fixed on the second connecting flange through a connecting plate, and a gasket is arranged between the split rotor and the second connecting flange.
Preferably, the second positioning element comprises a second connecting flange for fixing the second end face of the split rotor, the split rotor comprises a reinforcing rib arranged on the second end face, and the second connecting flange and the reinforcing rib are radially positioned through a spigot structure.
Preferably, the reinforcing ribs protrude from the arc-shaped outer side surface of the split rotor; the second positioning piece is provided with a plurality of steps matched with the reinforcing ribs, and the height of each step is larger than that of the outer side face of the split rotor, which is protruded by the reinforcing ribs.
Preferably, said assembling the generator split rotor comprises the steps of:
pre-positioning the two split rotors through the alignment surface of the splicing alignment piece of the generator auxiliary tool;
and adjusting the relative positions of the two split rotors to finish the assembly.
Preferably, before the counterpoint face through the concatenation counterpoint piece of generator auxiliary fixtures carries out prepositioning to two split rotors, still include:
one or more lifting lugs are further arranged on the tool support, and the generator auxiliary tool is lifted through the lifting lugs.
Preferably, the adjusting of the relative positions of the two split rotors further includes, after the assembling is completed:
disassembling each second positioning piece of the generator auxiliary tool, and taking out the assembled generator rotor from the accommodating cavity.
Preferably, the disassembling of each second positioning piece of the generator auxiliary tool is to take out the assembled generator rotor from the accommodating cavity, and the disassembling includes:
detaching the connecting plate from a second connecting flange of each generator auxiliary tool;
and penetrating the assembled generator rotor through the second connecting flange, and taking out the assembled generator rotor from the accommodating cavity.
The invention has the following beneficial effects:
1. the auxiliary tool for the generator can meet the protection requirements of the split rotor in multiple working procedures such as transportation, assembly and the like, and the tool for the split rotor does not need to be disassembled and reassembled in different production stages, so that the production flow of the split rotor in the circulation process is simplified.
2. According to the generator transportation method, the generator auxiliary tool is adopted to transport the split rotor, so that the effect of preventing external sundries from polluting or damaging the split rotor can be achieved, and the deformation of the split rotor in the transportation process can be reduced.
3. According to the generator assembling method, the split rotor is assembled by adopting the generator auxiliary tool, the pre-positioning function can be provided for assembling the split rotor through the positioning surface of the splicing counterpoint piece, and the assembling efficiency of the split rotor is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of an embodiment of a generator auxiliary tool of the present invention;
FIG. 2 is a schematic view of an embodiment of the auxiliary tool for a generator and a split rotor of the invention after being assembled;
FIG. 3 is a schematic structural view of an embodiment of a split rotor;
FIG. 4 is a schematic view of a first end face connection structure in an embodiment of a generator transportation method of the invention;
fig. 5 is a partial enlarged view of a portion a in fig. 2 for illustrating a connection structure between the split rotor 10, the second connection flange 202 and the connection plate 203;
fig. 6 is a cross-sectional view of the second end face connection structure in the embodiment of the generator transportation method of the present invention, the cross-sectional view is used to illustrate the structure between the second connection flange 202, the reinforcing ribs 104 on the split rotor 10, the connection plate 203, and the spacers 206;
FIG. 7 is a schematic flow chart diagram illustrating one embodiment of a generator assembly method of the present invention;
description of reference numerals:
the split rotor type generator auxiliary tool comprises a split rotor 10, an inner ring 101, a conical support 102, a magnetic yoke 103, a reinforcing rib 104, a first end face connecting structure 110, a second end face connecting structure 120, a gap 121, a generator auxiliary tool 20, a tool support 21, a first connecting flange 201, a second connecting flange 202, a connecting plate 203, a first positioning hole 2031, a second positioning hole 2032, a lifting lug 204, a splicing alignment piece 205, a gasket 206 and a fixing structure 207.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
It will be understood by those skilled in the art that, unless otherwise specified, the singular forms "a", "an", "the" and "the" may include the plural forms as well, and the "first" and "second" used herein are only used to distinguish one technical feature from another and are not intended to limit the order, number, etc. of the technical features. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In order to simplify the complexity of disassembling an original tool and then installing a new tool when the split rotor is circulated in different processes and avoid losing the protection of the split rotor in the tool replacing stage, the invention provides a generator auxiliary tool 20. As shown in the embodiment of fig. 1, the generator auxiliary tool 20 includes a tool support 21, and the tool support 21 is provided with a coating surface for coating the arc-shaped outer side surface of the split rotor, a first positioning member for fixing a first end surface of the split rotor, and a second positioning member for fixing a second end surface of the split rotor; a containing cavity for containing the split rotor is formed among the covering surface, the first positioning piece and the second positioning piece; at the circumferential two ends of the cladding surface, the accommodating cavity is open, and is combined with the figure 2, so that the split rotor 10 can penetrate out from the circumferential two ends of the accommodating cavity, and alignment splicing is facilitated.
The circumferential direction is a linear direction formed by the intersection of a plane perpendicular to the axis of the accommodating cavity and the cladding surface; the circumferential direction may include a circumferential direction around the axis of the cylinder and also a circumferential direction around the axis of the polygonal column. Therefore, the two circumferential ends can include the two circumferential ends of which the covering surfaces are arc-shaped and also can include the two circumferential ends of which the covering surfaces are polygonal columns, and only when the split rotor 10 accommodated in the accommodating cavity is spliced with other split rotors 10, the splicing part of the split rotor is exposed out of the open accommodating cavity.
For the concatenation of split rotor 10, still be equipped with the concatenation counterpoint piece 205 that is used for the concatenation split rotor 10 on the frock support 21, the counterpoint face of concatenation counterpoint piece 205 with the axis that holds the cavity is parallel or coincide, with when holding split rotor 10 in the cavity and other split rotor 10 concatenations, through counterpoint the face, thereby improve concatenation efficiency.
When in use, as shown in fig. 2 and 3, the arc-shaped outer side surface of the split rotor 10 is covered in the cladding surface to be positioned in the radial direction of the split rotor 10; the first end face of the split rotor 10 is fixed to the first positioning member, and the second end face is fixed to the second positioning member, so that the split rotor 10 is positioned on the two end faces of the split rotor 10, the split rotor 10 is covered, and the split rotor 10 is fixed and protected. When the split rotor 10 is assembled, since the accommodating cavity is open, the split rotor 10 can penetrate out from the two circumferential ends of the accommodating cavity, and the central angle of the split rotor 10 in the accommodating cavity can be larger than that of the accommodating cavity. Therefore, when the two split rotors 10 are butted, the generator auxiliary tool 20 with a smaller central angle can be adopted, so that the split rotors 10 penetrate out from the two circumferential ends of the accommodating cavity, and splicing is facilitated. During splicing, the splicing aligning piece 205 on the tool support 21 is aligned first, so that the split rotor 10 in the accommodating cavity is pre-aligned; at this time, the cross sections at the two circumferential ends of the accommodating cavity are not in contact, so that interference caused by splicing and aligning the split rotor 10 is avoided.
The generator auxiliary tool 20 can protect the split rotor 10 in the transportation and process circulation processes of the split rotor 10, does not need to be disassembled when the split rotor 10 is assembled, and can provide a pre-positioning effect for the assembly through the positioning surface. Compared with the existing tooling of the split rotor 10, the tooling of the split rotor 10 provided by the invention not only avoids the risk that the split rotor 10 is lost due to the replacement of the tooling of the split rotor 10 when the split rotor 10 is assembled, but also provides a pre-positioning function for the assembly of the split rotor 10, and improves the assembly efficiency of the generator rotor.
In some embodiments of the present invention, the generator auxiliary tool 20 is a topological structure including the covering surface, the first positioning element and the second positioning element, the topological structure can envelop the split rotor 10, and the strength of the topological structure is higher than that of the split rotor 10, so as to protect the split rotor 10 well.
In other embodiments of the present invention, detachable protection structures may also be disposed at two circumferential ends of the covering surface to form a relatively closed accommodating cavity, so as to better protect two circumferential ends of the split rotor 10 during transportation and process circulation; when assembling the split rotor 10, the protective structure may be removed for assembly. Although the generator auxiliary tool 20 with the protection structure according to the embodiment adds a partial disassembly step when the split rotor 10 is assembled, the generator auxiliary tool can better protect the split rotor 10.
The clad surface may be an arc surface having a shape consistent with the outer side surface of the split rotor 10, so as to provide a relatively sealed protection structure for the outer side surface of the split rotor 10. In order to simplify the structure of the tool holder 21 and reduce the cost of the tool, the coating surface may be a non-arc surface close to an arc surface, for example, a non-arc coating surface close to a semi-arc surface surrounded by a plurality of rectangles. In order to reduce the weight of the generator auxiliary tool 20 and further reduce the cost of the tool, the cladding may also be a grid-shaped cladding assembled by longitudinal and/or transverse brackets. The bracket can comprise a linear bracket or an arc bracket, so that the coating surface can comprise an arc-shaped grid-shaped coating surface or a plane grid-shaped coating surface.
As shown in the embodiment of fig. 2, the covering surface may include several rectangular frames connected in sequence to form an arc surface similar to the arc outer side surface of the split rotor 10; the brackets are arranged in each rectangular frame in a staggered mode so as to increase the stability and strength of the cladding surface. When in use, the arc-shaped outer side surface of the split rotor 10 is clamped in the cladding surface; on a projection plane where the end face of the split rotor 10 is located, the arc-shaped outer side face of the split rotor 10 is in an arc shape, and the cladding face is a part of an arc-shaped circumscribed polygon. The generator auxiliary tool 20 of the embodiment not only can play a good role in protecting the segmented rotor 10, but also has low manufacturing cost; and the weight is light, which is beneficial to reducing the hoisting and transportation cost of the generator auxiliary tool 20 and the split rotor 10.
In one embodiment of the invention, on a projection plane perpendicular to the axis of the receiving cavity, the projection of the alignment plane of the splice aligner 205 is outside the projection of the cladding plane; namely: when the two split rotors 10 are butted on a plane parallel to the axis, or when the two split rotors 10 are butted on a plane where the axis is located, the splicing aligning piece 205 on the generator auxiliary tool 20 can be in contact alignment firstly, but the cross sections of the two circumferential ends of the accommodating cavity are not in contact, so that the influence of the accommodating cavity on the splicing alignment of the split rotors 10 is avoided.
Of course, in some embodiments of the present invention, the projection of the alignment surface of the splicing alignment piece 205 may also be located within the projection of the cladding surface, that is, the splicing alignment piece 205 of the generator auxiliary tool 20 is located at a position retracted within the cladding surface; at this time, in order to ensure the alignment function of the alignment member 205, the alignment member 205 of another generator auxiliary tool 20 aligned with the generator auxiliary tool 20 should be located at a position protruding beyond the cladding surface, so that when the two generator auxiliary tools 20 are aligned and spliced, the corresponding alignment member 205 can also play a corresponding role. The generator auxiliary tool 20 of this embodiment can protect the split rotor 10, but during the split process of the split rotor 10, the split aligning members 205 need to be designed in pairs. Therefore, when the projection of the alignment surface of the splice alignment member 205 is located outside the projection of the cladding surface, the problem of designing the splice alignment member 205 in pairs does not need to be considered, and the design cost, the manufacturing cost, and the assembly cost of the generator auxiliary tool 20 can be simplified, compared to a structure in which the projection of the alignment surface of the splice alignment member 205 is located inside the projection of the cladding surface.
In another embodiment of the present invention, the first positioning element includes a first connecting flange 201 for wrapping the first end surface of the split rotor 10, and a connecting surface of the first connecting flange 201 is perpendicular to the axis of the receiving cavity. In the present embodiment, the first positioning element not only has the function of fixing the first end surface of the split rotor 10, but also has the first connecting flange 201 covering the first end surface of the split rotor 10 to protect the first end surface of the split rotor 10. When the magnetic steel is installed in the split rotor 10, because the connection surface of the first connection flange 201 is perpendicular to the axis of the accommodation cavity, the first connection flange 201 does not occupy the space in the accommodation cavity on the side close to the split rotor 10, so that the purpose of not influencing the installation of the magnetic steel in the split rotor 10 on the premise of protecting the first end surface of the split rotor 10 is achieved. Of course, on the premise of neglecting the cost of the present invention, in other embodiments of the present invention, the connection surface of the first connection flange 201 may also be inclined toward the side away from the split rotor 10 while covering the split rotor 10, so as to reserve more installation space for installing the magnetic steel.
A similar structure can also be provided for the second positioning element for fixing the second end face of the split rotor 10, namely: the second positioning piece is perpendicular to the plane of the axis of the accommodating cavity body on one side close to the split rotor 10 or is a positioning surface inclined to one side far away from the split rotor 10, so that more installation spaces are reserved for installing the magnetic steel.
Furthermore, as described in fig. 2, one surface of the first connecting flange 201 is the connecting surface, and the other surface opposite to the connecting surface is fixedly connected to one end of the splicing aligning member 205. The first connecting flange 201 in this embodiment is not only used for fixing and protecting the split rotor 10, but also fixedly connected with the splicing aligning member 205, which is beneficial to making the connection of the generator auxiliary tool 20 firmer, reducing the deformation of the generator auxiliary tool 20 itself, improving the structural strength, and making the split rotor 10 located in the accommodating cavity obtain better protection; and during splicing and aligning, the splicing and aligning piece 205 is also adjusted to directly drive the first connecting flange 201 and the split rotor 10 to move, so that the purpose of positioning more quickly and accurately is achieved.
Further, the first connecting flange 201 may be a partially hollow arched thin sheet, and the splicing alignment piece 205 is fixed on a chord of the arched thin sheet; on a projection plane perpendicular to the axis of the accommodating cavity, the projection of the chord of the arched thin sheet and the projection of the cladding surface are parallel to each other.
In this embodiment, one end of the splice aligner 205 is fixed to the chord of the arcuate sheet, which is a simple structure compared to other positions of the first attachment flange 201. Because the outer side surface of the split rotor 10 is generally an arc-shaped surface, the cladding surface cladding the arc-shaped outer side surface of the split rotor 10 is generally a polygonal splicing surface which is also an arc surface or is close to the arc surface; therefore, on a projection plane perpendicular to the axis of the accommodating cavity, the projection of the cladding surface is an arc surface or a polygonal section close to the arc surface, the projections of the two circumferential ends of the cladding surface are two points, and the chord of the projection of the cladding surface is the connecting line between the two points. The projection of the connecting line is parallel to the chord of the arched sheet, and the plane passing through the two circumferential ends of the cladding surface is parallel to the chord of the first connecting flange 201, so that the direction of the chord of the first connecting flange 201 is consistent with the direction of the connecting line of the open type openings at the two circumferential ends of the generator auxiliary tool 20, and the splicing alignment piece 205 fixed on the chord of the first connecting flange 201 is more beneficial to adjusting the direction of the generator auxiliary tool 20. When the position and/or orientation of the generator auxiliary tool 20 and the split rotor 10 therein are/is adjusted by the splicing aligning member 205, the required rotating moment is small; and the moment rotating towards the positive direction or the reverse direction is more balanced, which is beneficial to the assembly of the rotors respectively.
The alignment surface of the splice aligner 205 may coincide with, or be close to coinciding with, the chord of the arcuate sheet, regardless of the interference of the wrap surfaces at circumferential ends during splicing. When the generator auxiliary tool 20 is used for protecting the two-piece split rotor 10, the center line of the alignment surface of the splicing alignment piece 205, the axis of the arched thin sheet and the axis of the accommodating cavity can be overlapped, so that each generator auxiliary tool 20 can be designed into the same structure, the replaceability and the interchangeability of each generator auxiliary tool 20 are improved, and the design, manufacture and assembly cost of the generator auxiliary tool 20 is simplified. Otherwise, the structures of the adjacent generator auxiliary fixtures 20 need to be matched with each other, thereby increasing the matching time and the assembling difficulty in the assembling process of the split rotor 10 and reducing the assembling efficiency. Preferably, on a projection plane perpendicular to the axis of the accommodating cavity, the projection of the alignment plane of the splicing alignment piece 205 should be outside the projection of the cladding plane, so that when the two split rotors 10 are butted, the splicing alignment piece 205 can contact and align first, but the cross sections at the two circumferential ends of the accommodating cavity do not contact, thereby avoiding the influence of the accommodating cavity on the splicing alignment of the split rotors 10.
As shown in the first end face connection structure 110 of fig. 4, the inner ring 101 of the split rotor 10 is designed with a threaded through hole or a threaded hole matched with the shaft system, and the threaded through hole or the threaded hole can be aligned with the threaded through hole on the first connection flange 201 of the generator auxiliary tool 20 at the same time, so that the inner ring 101 of the split rotor 10 and the first connection flange 201 of the generator auxiliary tool 20 can be connected through bolts. The inner ring 101 and the first connecting flange 201 can be radially positioned through a spigot structure and are axially connected into a whole through bolts. The seam allowance structure is a conventional stop structure, and is not described in detail herein.
The generator auxiliary tool 20 in the illustrated embodiment of the present invention is suitable for the split rotor 10 split into two lobes, and when the generator rotor is split into three lobes or more, the splicing alignment piece 205 in the generator auxiliary tool 20 of the present invention can be adaptively changed to adapt to the splicing alignment of the split rotors 10 with different central angles. For example, the alignment surface of the splicing alignment piece 205 is parallel to the chord projected by the cladding surface, so that when the alignment surfaces of two splicing alignment pieces 205 are fitted, the chords projected by two adjacent cladding surfaces are parallel or coincident, thereby facilitating the alignment and fitting of the assembly surfaces of the split rotor 10; the chord projected by the cladding surface is as follows: and on a projection plane perpendicular to the axis of the accommodating cavity, a connecting line is formed between two projected points at the two circumferential ends of the coating surface.
In an embodiment of the present invention, the second positioning member includes a second connecting flange 202 for fixing the second end surface of the split rotor 10, and the second connecting flange 202 is provided with a fixing hole. In this embodiment, the split rotor 10 is fixedly connected to the second connecting flange 202 through the fixing hole, so that the split rotor 10 can be prevented from being separated from the accommodating cavity, and the structure is simple. In more specific embodiments, the fixing may be performed by using a fixing member such as a screw, a bolt, or the like, which is engaged with the fixing hole.
With reference to fig. 2 and the enlarged partial structural schematic view of fig. 5, the second positioning element may further include a plurality of connection plates 203; the cross section of the second connecting flange 202 perpendicular to the axis of the accommodating cavity is in a sector ring shape, and the plurality of connecting plates 203 are uniformly fixed on the second connecting flange 202 through the fixing holes. The arcuate outer side of the split rotor 10 is generally curved at the first and second end faces and may in some cases be an arc. In this embodiment, the second connecting flange 202 having the sector-ring-shaped cross section can be better matched with the arc-shaped outer side surface of the split rotor 10, and the split rotor 10 is fixed on the second connecting flange 202 through the connecting plates 203 which are uniformly distributed, so that the stress between the split rotor 10 and the second connecting flange 202 is uniform, and the split rotor 10 is not easily deformed due to uneven stress.
The connecting plate 203 can adopt the structure shown in fig. 5, that is, the connecting plate 203 is a sheet structure, and is provided with a positioning hole fixedly connected with the second end face of the split rotor 10 and a positioning hole fixedly connected with the second connecting flange 202; the connection plate 203 is fixed to the outer side (the side remote from the first end face) of the split rotor 10 and the second connection flange 202. When the split rotor 10 can be inserted into the accommodating cavity through the second connecting flange 202, the arc radius corresponding to the second connecting flange 202 may be greater than the arc radius of the split rotor 10, so the positioning holes may be two rows of positioning holes, one row of positioning holes close to the axis of the accommodating cavity is the first positioning hole 2031 fixedly connected to the second end face of the split rotor 10, and one row of positioning holes far away from the axis of the accommodating cavity is the second positioning hole 2032 fixedly connected to the second connecting flange 202. The structure of the connecting plate 203 for fixing the split rotor 10 and the second connecting flange 202 shown in this embodiment is beneficial to placing the split rotor 10 into the accommodating cavity from the side close to the second connecting flange 202, and then fixing the connecting plate 203 on the split rotor 10 and the second connecting flange 202 through connecting pieces such as screws and bolts, and the fixing structure is simple; after the split rotor 10 is spliced, the spliced split rotor 10 can be taken out from the accommodating cavity only by detaching the connecting plate 203 on the side, and the first positioning piece on the other side of the split rotor 10 and other parts of the generator auxiliary tool 20 do not need to be disassembled, so that the disassembling efficiency is high; moreover, the generator auxiliary tool 20 after the split rotor 10 is taken out can be continuously used for accommodating other split rotors 10, and the recycling rate is high.
In other embodiments of the present invention, the connection plate 203 may also be connected to the split rotor 10 or the second connection flange 202 by a stopper, a buckle, or the like. For example, the connection plate 203 is provided with a fixing slot, and the connection plate 203 is fixed on the second connection flange 202 through the second positioning hole 2032 and the split rotor 10 is clamped by the fixing slot.
The split rotor 10 can be structured as shown in fig. 3, and includes an inner ring 101, a conical support 102, a magnetic yoke 103 and a reinforcing rib 104, which are matched with a generator shafting, and the connecting plate 203 can be connected with the reinforcing rib 104, or the connecting plate 203 clamps the reinforcing rib 104 in the fixing clamping groove. Of course, the structure of the split rotor 10 can be designed into other structures according to specific requirements, and the number of the split can be determined according to requirements, and is not limited to the structure shown in fig. 3.
As shown in fig. 1 and fig. 2, the tool support 21 of the generator auxiliary tool 20 of the present invention may further include one or more lifting lugs 204, which are used as lifting points for the split rotor 10 during various lifting operations, so as to prevent the split rotor 10 from directly bearing lifting force. For example, when the split rotor 10 is assembled (i.e. two or more split rotors 10 are assembled into an integral rotor), the lifting lugs 204 of the generator auxiliary tool 20 of the present invention may be lifted to assemble two or more generator auxiliary tools 20 into a circle, so that the split rotors 10 are assembled into a complete rotor.
In another embodiment of the present invention, the tool support 21 may further include a fixing structure 207 for fixing with a transportation tool. For example, when the split rotor 10 accommodated in the generator auxiliary tool 20 is transported by a transport vehicle, the generator auxiliary tool 20 may be fixed to the transport vehicle by the fixing structure 207, thereby preventing an accident from occurring during the transportation.
Based on the structure of the generator auxiliary tool 20, the invention further provides a generator transportation method, which comprises the step of transporting the split rotor 10 of the generator by using the generator auxiliary tool 20, wherein the split rotor 10 is fixed in the accommodating cavity of the generator auxiliary tool 20. The transportation method of the invention can play a role in preventing the segmented rotor 10 from being polluted or damaged by external sundries, and reduce the deformation of the segmented rotor 10 in the transportation, assembly and other processes.
In another embodiment of the generator transportation method of the present invention, the generator auxiliary tool 20 may be further fixed to a transportation tool through a fixing structure 207, so as to prevent the generator auxiliary tool 20 from shifting during transportation.
The invention also provides a generator assembling method, which comprises the step of assembling the split rotor 10 of the generator by adopting the generator auxiliary tool 20, wherein the split rotor 10 is fixed in the accommodating cavity of the generator auxiliary tool 20. According to the assembling method, the positioning surface of the splicing counterpoint piece 205 is used for providing a pre-positioning effect for splicing, and the splicing efficiency of the split rotor 10 is improved.
In an embodiment of the generator assembling method of the present invention, the second positioning member includes a second connecting flange 202 for fixing the second end face of the split rotor 10, the second end face of the split rotor 10 is fixed to the second connecting flange 202 through a connecting plate 203, and a gasket 206 is further disposed between the split rotor 10 and the second connecting flange 202. The gap between the split rotor 10 and the connection plate 203 is filled with the spacer 206, so that abrasion of the split rotor 10 during transportation, assembly, and the like can be reduced, and the fixing effect between the split rotor 10 and the connection member 203 can be improved. The split rotor 10, the second connecting flange 202 and the connecting plate 203 may be respectively fixedly connected by a fixing member such as a bolt.
In another embodiment of the generator assembling method according to the present invention, as shown in fig. 5 and 6, the second positioning member includes a second connecting flange 202 for fixing the second end face of the split rotor 10, the split rotor 10 includes a rib 104 provided on the second end face, and the second connecting flange 202 and the rib 104 are radially positioned by a spigot structure, so as to prevent the split rotor 10 from moving in the radial direction in the receiving cavity.
In a further embodiment, the ribs 104 are raised from the arcuate outer side of the split rotor 10; the second positioning piece is provided with a plurality of steps matched with the reinforcing ribs 104, and the height of the steps is larger than the height of the reinforcing ribs 104 protruding from the arc-shaped outer side surface of the split rotor 10. If will the step is close to the step face of second setting element axis is called first step face, will the step is kept away from the step face of second setting element axis is called second step face, then when split rotor 10 arranges in hold the cavity in, the arc lateral surface of split rotor 10 with the laminating of first step face forms the tang structure prevents that split rotor 10 from removing along radial direction, strengthening rib 104 with certain clearance has between the second step face. Further, when the reinforcing rib 104 is fixed to the connecting plate 203 in the axial direction by the fixing member, a certain gap 121 may also be formed between the reinforcing rib 104 and the second positioning member in the direction of the axis of the second positioning member, so as to avoid an over-defined condition between the split rotor 10 and the second end face connecting structure 120. The second end face connection structure 120 is a connection structure of the second end face of the split rotor 10 and the generator auxiliary tool 20.
As shown in fig. 1, when a certain gap is formed between the reinforcing rib 104 and the second positioning member in the direction of the axis of the second positioning member, that is, when the split rotor 10 is in the accommodating cavity, a certain moving space is formed in the direction of the axis of the accommodating cavity; therefore, when a certain axial gap exists between the reinforcing rib 104 and the second positioning member, it is also ensured that the first end face connection structure 110 is not over-defined. The first end face connection structure 110 is a connection structure of the split rotor 10 and a first end face of the generator auxiliary tool 20.
The generator assembling method of the present invention, as shown in fig. 7, may include the following assembling steps:
step S10: pre-positioning the two split rotors 10 by the alignment surface of the splicing alignment piece 205 of the generator auxiliary tool 20;
step S20: and adjusting the relative positions of the two split rotors 10 to complete the assembly.
In this embodiment, the alignment surface of the alignment member 205 can be aligned to pre-position two split rotors 10 to be spliced in the generator auxiliary tool 20, so as to improve the efficiency of splicing the split rotors 10.
When a rotor is divided into two split rotors 10, the split rotors 10 can be assembled into a circle by hoisting the generator auxiliary tool 20 of the invention during the assembling operation of the split rotors 10 (i.e. during the operation of assembling the split rotors 10 into an integral rotor), and then the two generator auxiliary tools 20 are connected into a whole by the splicing aligning member 205, thereby realizing the primary positioning of the split rotors 10. And subsequently, the relative position between the two split rotors 10 is directly adjusted, so that the generator rotor assembly is completed. When adjusting the relative position of the split rotor 10, the two generator auxiliary tools may no longer remain fastened at the splice aligner 205, so as to reserve a margin for adjusting the split rotor 10.
When one or more lifting lugs 204 are arranged on the tool support 21, before the pre-positioning of the two split rotors 10 by the alignment surface of the splicing alignment piece 205 of the generator auxiliary tool 20, the method may further include:
step S01: the generator auxiliary tool 20 is lifted by the lifting lugs 204, so that the purposes of moving the generator auxiliary tool 20 and the split rotor 10 and adjusting the alignment are achieved.
In another embodiment of the generator assembling method of the present invention, the adjusting the relative positions of the two split rotors 10, after the assembling, further includes:
disassembling the second positioning piece of each generator auxiliary tool 20, and taking out the assembled generator rotor from the accommodating cavity.
In this embodiment, the generator rotor can be taken out from the axial direction only by detaching the positioning members on one side of the split rotor 10 without detaching the positioning members on both sides at the same time, which simplifies the step of detaching the generator rotor from the generator auxiliary tool 20. Of course, before the generator rotor is removed, if the split rotor 10 and the second positioning element are connected by a fixed connection element, the fixed connection element needs to be removed.
Because the generator auxiliary tool 20 is positioned at the outer side of the split rotor 10, the installation of the magnetic steel in the split rotor 10 is not influenced, and therefore, the magnetic steel can be assembled in the generator auxiliary tool 20. Therefore, the assembled generator rotor completed by the generator assembling method can comprise magnetic steel or not.
In another embodiment of the generator assembling method according to the present invention, if the split rotor 10 is fixed on the second connecting flange 202 through the connecting plate 203 and the second end face connecting structure 120 is as shown in fig. 5, the disassembling the second positioning element of each generator auxiliary tool 20 and taking out the assembled generator rotor from the accommodating cavity includes:
step S31: detaching the connecting plate 203 from the second connecting flange 202 of each generator auxiliary tool 20;
step S32: and the assembled generator rotor passes through the second connecting flange 202 and is taken out of the accommodating cavity.
After the generator rotor is assembled, the generator rotor can be taken out from one side of the second connecting flange 202 only by detaching the connecting plate 203, so that the generator assembly method is simple and efficient; and the generator auxiliary tool 20 after the generator rotor is taken out can also be directly used for protecting the next split rotor 10, so that the recycling step of the generator auxiliary tool 20 is simplified.
The generator auxiliary tool 20 provided by the invention can simultaneously meet the protection requirements of the split rotor 10 in a plurality of working procedures such as transportation, assembly and the like, and in different production stages, the tool of the split rotor 10 is not required to be disassembled and reassembled, so that the production flow is simplified. According to the generator transportation method and the assembly method, continuous protection can be provided for the split rotor 10 through the generator auxiliary tool 20, and deformation of the split rotor 10 in different working procedures due to various factors is reduced.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (18)
1. The auxiliary tool for the generator is characterized by comprising a tool support (21), wherein a cladding surface used for cladding the arc-shaped outer side surface of the split rotor (10), a first positioning piece used for fixing the first end surface of the split rotor (10) and a second positioning piece used for fixing the second end surface of the split rotor (10) are arranged on the tool support (21); an accommodating cavity for accommodating the split rotor (10) is formed among the covering surface, the first positioning piece and the second positioning piece; the accommodating cavity is open at the two circumferential ends of the cladding surface;
still be equipped with concatenation counterpoint piece (205) that are used for concatenation split rotor (10) on frock support (21), the counterpoint face of concatenation counterpoint piece (205) with the axis that holds the cavity is parallel or coincide, realizes assembling prepositioning of split rotor (10).
2. The generator auxiliary tool according to claim 1, characterized in that the first positioning member comprises a first connecting flange (201) for covering a first end face of the split rotor (10), and a connecting face of the first connecting flange (201) is perpendicular to an axis of the accommodating cavity.
3. The auxiliary tool for the generator as claimed in claim 2, wherein one surface of the first connecting flange (201) is the connecting surface, and the other surface opposite to the connecting surface is fixedly connected with one end of the splicing alignment piece (205).
4. The auxiliary tool for the generator according to claim 3, wherein the first connecting flange (201) is a partially hollowed-out arched thin sheet, and the splicing alignment piece (205) is fixed on a chord of the arched thin sheet; on a projection plane perpendicular to the axis of the accommodating cavity, the projection of the chord of the arched thin sheet and the projection of the cladding surface are parallel to each other.
5. The auxiliary tool for the generator according to claim 1, wherein the second positioning part comprises a second connecting flange (202) for fixing a second end face of the split rotor (10), and a fixing hole is formed in the second connecting flange (202).
6. The generator auxiliary tool according to claim 5, characterized in that the second positioning member further comprises a plurality of connecting plates (203); the cross section of the second connecting flange (202) perpendicular to the axis of the accommodating cavity is in a sector ring shape, and the connecting plates (203) are uniformly fixed on the second connecting flange (202) through the fixing holes.
7. The generator auxiliary tool according to claim 1, characterized in that one or more lifting lugs (204) are further arranged on the tool support (21).
8. The generator auxiliary tool according to claim 1, characterized in that the tool support (21) is further provided with a fixing structure (207) for fixing with a transport tool.
9. A generator transportation method, characterized by comprising the step of transporting a split rotor (10) of a generator by using the generator auxiliary tool (20) as claimed in any one of claims 1 to 8, wherein the split rotor (10) is fixed in a containing cavity of the generator auxiliary tool (20).
10. Generator transport method according to claim 9, characterised in that the generator auxiliary tool (20) is fixed to the transport means by a fixing structure (207).
11. A generator assembling method, characterized by comprising the step of assembling a split rotor (10) of a generator by using the generator auxiliary tool (20) as claimed in any one of claims 1 to 8, wherein the split rotor (10) is fixed in a containing cavity of the generator auxiliary tool (20).
12. Generator assembly method according to claim 11, wherein the second positioning element comprises a second connecting flange (202) for fixing the second end face of the split rotor (10), the second end face of the split rotor (10) being fixed to the second connecting flange (202) by means of a connecting plate (203), a spacer (206) being arranged between the split rotor (10) and the second connecting flange (202).
13. The generator assembling method according to claim 11, wherein the second positioning member comprises a second connecting flange (202) for fixing a second end face of the split rotor (10), the split rotor (10) comprises a reinforcing rib (104) arranged on the second end face, and the second connecting flange (202) and the reinforcing rib (104) are radially positioned through a spigot structure.
14. Generator assembly method according to claim 13, characterised in that the stiffening ribs 104 are raised from the curved outer side of the split rotor (10); the second positioning piece is provided with a plurality of steps matched with the reinforcing ribs (104), and the height of each step is larger than that of the corresponding reinforcing rib (104) protruding out of the outer side face of the split rotor (10).
15. Method for assembling a generator according to claim 11, characterized in that said assembling a generator split rotor (10) comprises the steps of:
pre-positioning the two split rotors (10) through the alignment surface of the splicing alignment piece (205) of the generator auxiliary tool (20);
and adjusting the relative positions of the two split rotors (10) to complete the assembly.
16. The generator assembling method according to claim 15, wherein before pre-positioning the two split rotors (10) by the alignment surface of the splicing alignment piece (205) of the generator auxiliary tool (20), the method further comprises:
one or more lifting lugs (204) are further arranged on the tool support (21), and the generator auxiliary tool (20) is lifted through the lifting lugs (204).
17. The generator assembly method according to claim 15, wherein said adjusting the relative position of said two split rotors (10), after completing the assembling, further comprises:
disassembling the second positioning piece of each generator auxiliary tool (20), and taking out the assembled generator rotor from the accommodating cavity.
18. The generator assembling method according to claim 17, wherein the disassembling the second positioning member of each generator auxiliary tool (20) to take out the assembled generator rotor from the accommodating cavity comprises:
detaching the connecting plate (203) from a second connecting flange (202) of each generator auxiliary tool (20);
and penetrating the assembled generator rotor through the second connecting flange (202) and taking out the assembled generator rotor from the accommodating cavity.
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| CN201811550886.1A CN109625558B (en) | 2018-12-18 | 2018-12-18 | Generator auxiliary tool, generator transportation method and assembly method |
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| CN201811550886.1A CN109625558B (en) | 2018-12-18 | 2018-12-18 | Generator auxiliary tool, generator transportation method and assembly method |
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| CN112910186A (en) * | 2019-12-04 | 2021-06-04 | 北京金风科创风电设备有限公司 | Installation method of split motor |
| CN113086383B (en) | 2019-12-23 | 2022-11-11 | 新疆金风科技股份有限公司 | Transportation tool structure, split motor module with transportation tool and transportation method |
| CN113098209B (en) | 2019-12-23 | 2022-12-27 | 新疆金风科技股份有限公司 | Motor assembling method and fixing device |
| CN113098173B (en) * | 2019-12-23 | 2023-03-31 | 新疆金风科技股份有限公司 | Supporting tool structure, split rotor with tool and assembling method of motor rotor |
| CN113131688B (en) * | 2019-12-31 | 2023-03-31 | 新疆金风科技股份有限公司 | Motor splitting or assembling device, motor splitting method and motor assembling method |
| CN113746236B (en) * | 2020-05-27 | 2023-04-07 | 北京金风科创风电设备有限公司 | Rotor support, motor rotor and motor |
| CN112018968B (en) * | 2020-07-31 | 2022-12-20 | 西安中车永电捷力风能有限公司 | Anti-magnetic structure |
| CN113037028B (en) * | 2021-04-28 | 2022-05-10 | 台山核电合营有限公司 | Device for drawing through generator rotor |
| CN113241872B (en) * | 2021-06-16 | 2022-02-15 | 常州神力电机股份有限公司 | Protection tool for fan-shaped silicon steel sheet of stator core of wind driven generator |
| CN113765326A (en) * | 2021-10-11 | 2021-12-07 | 维沃移动通信有限公司 | Linear motor, method and device for detecting oscillation starting direction of linear motor and electronic equipment |
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