CN112615456A - High-strength generator base and automatic welding process thereof - Google Patents
High-strength generator base and automatic welding process thereof Download PDFInfo
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- CN112615456A CN112615456A CN202011571500.2A CN202011571500A CN112615456A CN 112615456 A CN112615456 A CN 112615456A CN 202011571500 A CN202011571500 A CN 202011571500A CN 112615456 A CN112615456 A CN 112615456A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
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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
- H02K15/14—Casings; Enclosures; Supports
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a high-strength generator base and an automatic welding process thereof, belonging to the technical field of generator bases and comprising an excitation end, a middle end and a steam end, wherein the excitation end comprises an excitation end base, an excitation end outer cover plate arranged on the excitation end base and an excitation end frame arranged in the excitation end outer cover plate; the middle end comprises a middle end machine base, a middle end outer cover plate arranged on the middle end machine base and a middle end frame arranged in the middle end outer cover plate; the steam end comprises a steam end base, a steam end outer cover plate arranged on the steam end base and a steam end frame arranged in the steam end outer cover plate. According to the automatic welding process of the high-strength generator base, the excitation end, the middle end and the steam end are welded in a three-section mode through automatic robot welding, the base is convenient to assemble, each assembling size is convenient to control, the welding deformation can be effectively controlled, the obtained assembling size of the generator base can control smaller errors, the welding seam connection is tight, and the overall welding strength of the generator base can be improved.
Description
Technical Field
The invention belongs to the technical field of generator bases, and particularly relates to a high-strength generator base and an automatic welding process thereof.
Background
In recent years, the Chinese power generation equipment manufacturing industry enters a rapid development stage, the power generation equipment production technology is greatly improved, the capacity is gradually improved, the localization degree is continuously improved, the Chinese power generation equipment manufacturing industry realizes the leap-type development, part of the product production technology reaches the international advanced level, and the continuous and healthy development of the Chinese power industry is powerfully supported. With the increase of the service life of part of the turbo generator units, the end parts of the generator iron cores have the defects of local overheating, burning, individual melting points and the like.
The base, as the biggest and heaviest component in the generator, needs to bear the rotor mass, and the quality of the assembly and welding of the base is of great importance to the whole generator. The base has a large integral structure, more parts and large welding amount, and is easy to shrink and deform, so that the requirement on assembly welding is high, and the assembly size of the base must be well controlled so as to facilitate subsequent use.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the high-strength generator base and the automatic welding process thereof, the automatic welding process of the high-strength generator base adopts three-section type welding connection of the excitation end, the middle end and the steam end through robot automatic welding, the assembly of the base is convenient, the control of each assembly size is convenient, the welding deformation can be effectively controlled, the obtained assembly sizes of the generator base can control smaller errors, the welding seams are connected tightly, and the integral welding strength of the generator base can be improved.
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-strength generator base comprises an excitation end, a middle end and a steam end, wherein the excitation end comprises an excitation end base, an excitation end outer cover plate arranged on the excitation end base and an excitation end frame arranged in the excitation end outer cover plate; the middle end comprises a middle end machine base, a middle end outer cover plate arranged on the middle end machine base and a middle end frame arranged in the middle end outer cover plate, the middle end frame comprises a group of middle wall rings, and the adjacent middle wall rings are connected by a group of supporting tubes; the steam end includes the steam end frame, locates the steam end outer cover plate on the steam end frame and locates the steam end frame in the steam end outer cover plate, the steam end frame includes the steam end outer wall, be equipped with a set of second backup pad on the steam end outer wall, first backup pad and second backup pad all link to each other through the welding with adjacent well wall ring surface, it all is equipped with the footing board to encourage between end outer cover plate and the steam end outer cover plate and the well end outer cover plate near bottom department.
Furthermore, a first reinforcing ring is arranged between the outer wall of the excitation end and the connected middle wall ring, and the first reinforcing ring is connected with the outer wall of the excitation end and the middle wall ring through a first supporting plate respectively.
Furthermore, a second reinforcing ring is arranged between the steam end outer wall and the connected middle wall ring, and the second reinforcing ring is connected with the steam end outer wall and the middle wall ring through a second supporting plate respectively. The first and second stiffening rings further enhance the stability of the exciter end frame and the steam end frame.
Furthermore, a group of supporting rib plates are arranged on the base plate. Further strengthen the welding steadiness between footing board and each outer shroud.
Furthermore, supports are arranged on the steam end outer cover plate close to the two sides of the top. The subsequent installation with other parts is convenient.
Furthermore, the excitation end outer cover plate and the steam end outer cover plate are respectively provided with a lifting bar seat near the bottom. The lifting of the machine base is convenient to move the machine base.
Furthermore, the top of the excitation end outer cover plate and the top of the steam end outer cover plate are both provided with a water main pipe flange, the excitation end outer cover plate is provided with a vibration measuring flange near the bottom, the steam end outer cover plate is provided with a temperature measuring lead flange near the bottom, and the excitation end outer cover plate and the steam end outer cover plate are both provided with maintenance flanges near the top.
Furthermore, a group of manhole flanges which are uniformly distributed are arranged at the positions, close to the center, of two sides of the machine base outer cover.
The invention also provides an automatic welding process of the high-strength generator base, and the welding of the high-strength generator base comprises the following welding steps:
(1) welding the frame: assembling an excitation end outer wall and a first reinforcing ring on an excitation end rack with a first supporting plate, welding by using an automatic robot welding device, assembling a steam end outer wall and a second reinforcing ring on the steam end rack with a second supporting plate, welding by using an automatic robot welding device, fixing the positions of all middle wall rings of the middle end rack, assembling the middle wall rings with the supporting plates, welding by using an automatic robot welding device, assembling the first supporting plate on the welded excitation end rack with the adjacent middle wall ring surface, welding by using an automatic robot welding device, assembling the second supporting plate on the steam end rack with the adjacent middle wall ring surface, welding by using an automatic robot welding device, and ensuring that the coaxiality among the excitation end outer wall, the steam end outer wall and the middle wall ring of the welded rack is less than or equal to 6 mm;
(2) welding the base and the outer cover plate: assembling an excitation end outer cover plate and an excitation end machine seat, assembling a middle end outer cover plate and a middle end machine seat, assembling a steam end outer cover plate and a steam end machine seat, welding by adopting an automatic robot welding device respectively, butting the excitation end outer cover plate and the middle end outer cover plate and the steam end outer cover plate and the middle end outer cover plate with a baseboard, welding a group of support rib plates on the baseboard and the connected outer cover plate, wherein the total height of the welded shell is 3871 +/-6 mm, and the width of the shell is 3813.8 +/-6 mm;
(3) assembling the rack obtained in the step (1) and the components obtained in the step (2), welding the joint of the outer wall of the excitation end and the outer cover plate of the excitation end by using an automatic robot welding device, welding the joint of the outer wall of the steam end and the outer cover plate of the steam end by using an automatic robot welding device, and setting the total length of the welded casing to 10999 +/-3 mm;
(4) and (4) further assembling a lifting bar seat, a main water pipe flange, a temperature measurement lead flange, a manhole flange, a vibration measurement flange and an overhaul flange which correspond to the assembling positions on the base obtained in the step (3), and welding by adopting an automatic robot welding device.
Has the advantages that: compared with the prior art, the invention has the following advantages: according to the high-strength generator base and the automatic welding process thereof, the excitation end, the middle end and the steam end are connected in a three-section type welding mode through robot automatic welding, so that the assembly of the base is facilitated, the assembly sizes are conveniently controlled, the welding deformation can be effectively controlled, the obtained assembly sizes of the generator base can control small errors, the welding seams are connected tightly, and the overall welding strength of the generator base can be improved.
Drawings
FIG. 1 is a perspective view of a high strength generator housing construction according to the present invention;
FIG. 2 is a front view of a high strength generator frame construction according to the present invention;
FIG. 3 is a left side view of a high strength generator frame construction according to the present invention;
fig. 4 is an internal structure view of a high-strength generator base according to the present invention.
In the figure: the excitation end comprises an excitation end 1, an excitation end machine base 11, a 111 outlet box, an excitation end outer cover plate 12, an excitation end frame 13, an excitation end outer wall 131, a first reinforcing ring 132, a first supporting plate 133, a middle end 2, a middle end machine base 21, a middle end outer cover plate 22, a middle end machine base 23, a middle wall ring 231, a supporting tube 232, a steam end 3, a steam end machine base 31, a steam end outer cover plate 32, a support 321, a steam end machine base 33, a steam end outer wall 331, a second reinforcing ring 332, a second supporting plate 333, a base plate 4, a supporting rib plate 41, a lifting seat 5, a total water pipe flange 6, a temperature measurement lead flange 7, a manhole flange 8, a vibration measurement flange 9 and a maintenance flange 10.
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 and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The invention is further illustrated with reference to the following figures and specific examples.
Example 1
As shown in fig. 1-4, a high-strength generator base includes an excitation end 1, a middle end 2 and a steam end 3, where the excitation end 1 includes an excitation end base 11, an excitation end outer cover plate 12 disposed on the excitation end base 11, and an excitation end frame 13 disposed in the excitation end outer cover plate 12, the excitation end base 11 is provided with a wire outlet box 111, the excitation end frame 13 includes an excitation end outer wall 131, the excitation end outer wall 131 is provided with a set of first support plates 133, a first reinforcement ring 132 may be disposed between the excitation end outer wall 131 and a connected middle wall ring 231, and the first reinforcement ring 132 is connected to the excitation end outer wall 131 and the middle wall ring 231 through the first support plates 133, respectively; the middle end 2 comprises a middle end base 21, a middle end outer cover plate 22 arranged on the middle end base 21 and a middle end frame 23 arranged in the middle end outer cover plate 22, the middle end frame 23 comprises a group of middle wall rings 231, and the adjacent middle wall rings 231 are connected by a group of support tubes 232; the steam end 3 comprises a steam end base 31, a steam end outer cover plate 32 arranged on the steam end base 31 and a steam end frame 33 arranged in the steam end outer cover plate 32, wherein supports 321 can be arranged on the steam end outer cover plate 32 close to two sides of the top of the steam end outer cover plate, the steam end frame 33 comprises a steam end outer wall 331, a group of second support plates 333 are arranged on the steam end outer wall 331, the first support plates 133 and the second support plates 333 are connected with the surfaces of the adjacent middle wall rings 231 through welding, a second reinforcing ring 332 can be arranged between the steam end outer wall 331 and the connected middle wall rings 231, and the second reinforcing ring 332 is connected with the steam end outer wall 331 and the middle wall rings 231 through the second support plates 333 respectively; base plates 4 are arranged between the excitation end outer cover plate 12 and the steam end outer cover plate 32 and between the middle end outer cover plate 22 and close to the bottom, and a group of support rib plates 41 can be arranged on the base plates 4.
The excitation end outer cover plate 12 and the steam end outer cover plate 32 are both provided with lifting bar seats 5 near the bottom, the tops of the excitation end outer cover plate 12 and the steam end outer cover plate 32 are both provided with a water main flange 6, the excitation end outer cover plate 12 is provided with a vibration measurement flange 9 near the bottom, the steam end outer cover plate 32 is provided with a temperature measurement lead flange 7 near the bottom, the excitation end outer cover plate 12 and the steam end outer cover plate 32 are both provided with an overhaul flange 10 near the top, and the two sides of the engine base outer cover plate are both provided with a group of uniformly distributed manhole flanges 8 near the center.
Example 2
An automatic welding process of a high-strength generator base for welding the high-strength generator base as described in embodiment 1 comprises the following welding steps:
(1) welding the frame: the outer wall 131 of the excitation end on the excitation end frame 13, the first reinforcing ring 132 and the first supporting plate 133 are assembled and then welded by using an automatic robot welding device, the outer wall 331 of the steam end on the steam end frame 33, the second reinforcing ring 332 and the second supporting plate 333 are assembled and then welded by using the automatic robot welding device, the positions of all the middle wall rings 231 of the middle end frame 23 are fixed, the support tube 232 is well assembled, a robot automatic welding device is adopted for welding, the first support plate 133 on the excitation end frame 13 which is well welded is assembled with the surface of the adjacent middle wall ring 231, the robot automatic welding device is adopted for welding, the second support plate 333 on the steam end frame 33 is assembled with the surface of the adjacent middle wall ring 231, the robot automatic welding device is adopted for welding, and the coaxiality among the excitation end outer wall 131, the steam end outer wall 331 and the middle wall ring 231 of the frame after welding is less than or equal to 6 mm;
(2) welding the base and the outer cover plate: assembling the excitation end outer cover plate 12 and the excitation end machine base 11, assembling the middle end outer cover plate 22 and the middle end machine base 21, assembling the steam end outer cover plate 32 and the steam end machine base 31, welding by adopting an automatic robot welding device respectively, welding a space between the excitation end outer cover plate 12 and the middle end outer cover plate 22 and a space between the steam end outer cover plate 32 and the middle end outer cover plate 22 after being butted with the base plate 4, welding a group of support rib plates 41 on the base plate 4 and the connected outer cover plates, wherein the total height of the welded enclosure is 3871 +/-6 mm, and the width of the enclosure is 3813.8 +/-6 mm;
(3) assembling the rack obtained in the step (1) and the components obtained in the step (2), welding the joint of the excitation end outer wall 131 and the excitation end outer cover plate 12 by using an automatic robot welding device, welding the joint of the steam end outer wall 331 and the steam end outer cover plate 32 by using an automatic robot welding device, and setting the total length of the welded casing to be 10999 +/-3 mm;
(4) and (4) further assembling a lifting bar seat 5, a water main pipe flange 6, a temperature measurement lead flange 7, a manhole flange 8, a vibration measurement flange 9 and an overhaul flange 10 which correspond to the assembling positions on the machine base obtained in the step (3), and welding by adopting an automatic robot welding device.
The foregoing is directed to embodiments of the present invention and, more particularly, to a method and apparatus for controlling a power converter in a power converter, including a power converter, a power converter.
Claims (9)
1. The utility model provides a high strength generator frame which characterized in that: the excitation end comprises an excitation end (1), a middle end (2) and a steam end (3), wherein the excitation end (1) comprises an excitation end base (11), an excitation end outer cover plate (12) arranged on the excitation end base (11) and an excitation end frame (13) arranged in the excitation end outer cover plate (12), a wire outlet box (111) is arranged on the excitation end base (11), the excitation end frame (13) comprises an excitation end outer wall (131), and a group of first supporting plates (133) are arranged on the excitation end outer wall (131); the middle end (2) comprises a middle end machine base (21), a middle end outer cover plate (22) arranged on the middle end machine base (21) and a middle end machine frame (23) arranged in the middle end outer cover plate (22), the middle end machine frame (23) comprises a group of middle wall rings (231), and the adjacent middle wall rings (231) are connected through a group of supporting tubes (232); steam end (3) include steam end frame (31), locate steam end outer cover plate (32) on steam end frame (31) and locate steam end frame (33) in steam end outer cover plate (32), steam end frame (33) include steam end outer wall (331), be equipped with a set of second backup pad (333) on steam end outer wall (331), first backup pad (133) and second backup pad (333) all link to each other through the welding with adjacent well wall ring (231) surface, it all is equipped with footing board (4) to encourage between end outer cover plate (12) and the steam end outer cover plate (32) and the well end outer cover plate (22) near bottom department.
2. A high strength generator stand according to claim 1 wherein: a first reinforcing ring (132) is arranged between the exciting end outer wall (131) and the connected middle wall ring (231), and the first reinforcing ring (132) is connected with the exciting end outer wall (131) and the middle wall ring (231) through a first supporting plate (133) respectively.
3. A high strength generator stand according to claim 2 wherein: and a second reinforcing ring (332) is arranged between the steam end outer wall (331) and the connected middle wall ring (231), and the second reinforcing ring (332) is respectively connected with the steam end outer wall (331) and the middle wall ring (231) through a second supporting plate (333).
4. A high strength generator stand according to claim 3 wherein: and a group of supporting rib plates (41) are arranged on the base plate (4).
5. A high strength generator stand according to claim 4, wherein: and the steam end outer cover plate (32) is provided with supports (321) close to the two sides of the top.
6. A high strength generator stand according to claim 5, wherein: the excitation end outer cover plate (12) and the steam end outer cover plate (32) are respectively provided with a lifting climbing seat (5) near the bottom.
7. A high strength generator stand according to claim 6 wherein: the excitation end outer cover plate (12) and the steam end outer cover plate (32) are respectively provided with a water main flange (6) at the top, the excitation end outer cover plate (12) is provided with a vibration measuring flange (9) near the bottom, the steam end outer cover plate (32) is provided with a temperature measuring lead flange (7) near the bottom, and the excitation end outer cover plate (12) and the steam end outer cover plate (32) are provided with an overhaul flange (10) near the top.
8. A high strength generator stand according to claim 7 wherein: and a group of manhole flanges (8) which are uniformly distributed are arranged at the positions, close to the center, of the two sides of the machine base outer cover.
9. An automatic welding process of a high-strength generator base, welding a high-strength generator base according to claim 8, characterized in that: the method comprises the following welding steps:
(1) welding the frame: assembling an excitation end outer wall (131) and a first reinforcing ring (132) on an excitation end frame (13) with a first supporting plate (133) and then welding by using an automatic robot welding device, assembling a steam end outer wall (331) and a second reinforcing ring (332) on a steam end frame (33) with a second supporting plate (333) and then welding by using the automatic robot welding device, fixing the positions of all middle wall rings (231) of a middle end frame (23) and assembling the middle wall rings with the supporting tubes (232), welding by using the automatic robot welding device, assembling the first supporting plate (133) on the welded excitation end frame (13) with the surfaces of the adjacent middle wall rings (231), welding by using the automatic robot welding device, assembling the second supporting plate (333) on the steam end frame (33) with the surfaces of the adjacent middle wall rings (231), and welding by using the automatic robot welding device, the coaxiality among the excitation end outer wall (131), the steam end outer wall (331) and the middle wall ring (231) of the welded frame is less than or equal to 6 mm;
(2) welding the base and the outer cover plate: the excitation end outer cover plate (12) and the excitation end base (11) are assembled, the middle end outer cover plate (22) and the middle end base (21) are assembled, the steam end outer cover plate (32) and the steam end base (31) are assembled, then welding is carried out by adopting an automatic robot welding device respectively, then butt joint is carried out between the excitation end outer cover plate (12) and the middle end outer cover plate (22) and between the steam end outer cover plate (32) and the middle end outer cover plate (22) and the base plate (4), then a group of support rib plates (41) are welded on the base plate (4) and the connected outer cover plate, the total height of the welded enclosure is 3871 +/-6 mm, and the width of the enclosure is 3813.8 +/-6 mm;
(3) assembling the rack obtained in the step (1) and the components obtained in the step (2), welding the joint of the excitation end outer wall (131) and the excitation end outer cover plate (12) by adopting an automatic robot welding device, welding the joint of the steam end outer wall (331) and the steam end outer cover plate (32) by adopting an automatic robot welding device, and setting the total length of the welded casing to be 10999 +/-3 mm;
(4) and (4) further assembling a lifting bar seat (5), a water main pipe flange (6), a temperature measurement lead wire flange (7), a manhole flange (8), a vibration measurement flange (9) and an overhaul flange (10) which correspond to the assembling positions on the base obtained in the step (3), and welding by adopting an automatic robot welding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011571500.2A CN112615456A (en) | 2020-12-27 | 2020-12-27 | High-strength generator base and automatic welding process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011571500.2A CN112615456A (en) | 2020-12-27 | 2020-12-27 | High-strength generator base and automatic welding process thereof |
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| Publication Number | Publication Date |
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| CN112615456A true CN112615456A (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011571500.2A Pending CN112615456A (en) | 2020-12-27 | 2020-12-27 | High-strength generator base and automatic welding process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113595301A (en) * | 2021-08-02 | 2021-11-02 | 苏州巨能发电配套设备有限公司 | 1300MW nuclear power generator base and assembling and welding process thereof |
-
2020
- 2020-12-27 CN CN202011571500.2A patent/CN112615456A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113595301A (en) * | 2021-08-02 | 2021-11-02 | 苏州巨能发电配套设备有限公司 | 1300MW nuclear power generator base and assembling and welding process thereof |
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