A S-type elbow tool for turbine generator rotor coil

Abstract

The present application discloses an S-shaped elbow tool for a turbine generator rotor coil, which belongs to the field of turbine generators. An S-shaped elbow tool for a turbine generator rotor coil comprises: a bottom plate; a second threaded hole, a first positioning hole, and a second positioning hole are provided on the bottom plate; a fixed plate is installed on the top wall of the bottom plate; a bent plate is movably installed on the fixed plate; a first groove is provided on the bottom wall of the fixed plate, a second groove is provided on the bottom wall of the bent plate, and when the fixed plate and the bent plate are spliced ​​with each other, the first groove is connected to the second groove; a pressing plate is movably provided on the fixed plate; the pressing plate is rotatably connected to the fixed plate by a second bolt, and a socket is provided on the end of the pressing plate away from the second bolt; a handle is fixedly connected to the top wall of the bent plate. The beneficial effect of the present application is to provide an S-shaped elbow tool for a turbine generator rotor coil, which has a simple structure and is easy to manufacture.

Description

Technical Field

[0001] The present application relates to the field of steam turbine generators, and in particular to an S-shaped elbow tool for a rotor coil of a steam turbine generator. Background Art

[0002] A generator is a motor that converts mechanical energy into electrical energy, usually driven by a steam turbine, a water turbine or an internal combustion engine. Generators are divided into two categories: DC generators and AC generators, the latter of which can be divided into synchronous generators and asynchronous generators.

[0003] A steam turbine generator refers to a generator driven by a steam turbine. The superheated steam generated by the boiler enters the steam turbine and expands to do work, causing the blades to rotate and drive the generator to generate electricity. The waste steam after work is sent back to the boiler for recycling through the condenser, circulating water pump, condensate pump, feed water heating device, etc.

[0004] During the assembly process of the turbine generator rotor, the rotor coils that have been insulated need to be placed in the corresponding rotor slots in batches, such as coil No. 1 in slot No. 1, coil No. 2 in slot No. 2, and so on. Then all the coils are welded in series in order to form a passage. During the welding process, an "S" type transition joint is required. The original "S" type transition joint requires the coil manufacturer to customize it according to different sizes, which is troublesome to make and has high cost.

[0005] A steam turbine generator rotor coil S-bend tool is now provided. Utility Model Content

[0006] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0007] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a turbine generator rotor coil S-bend tool, comprising: a base plate;

[0008] It is characterized in that: wherein, the bottom plate is provided with a second threaded hole, a first positioning hole and a second positioning hole;

[0009] A turbine generator rotor coil S-bend tool also includes:

[0010] A fixing plate, mounted on the top wall of the base plate;

[0011] Bending plate, movably mounted on the fixed plate;

[0012] Wherein, a first groove is provided on the bottom wall of the fixed plate, a second groove is provided on the bottom wall of the bent plate, and when the fixed plate and the bent plate are spliced ​​with each other, the first groove is connected with the second groove;

[0013] A pressure plate, movably arranged on the fixed plate;

[0014] The pressing plate is rotatably connected to the fixing plate by a second bolt, and a plug hole is provided on one end of the pressing plate away from the second bolt;

[0015] The handle is fixedly connected to the top wall of the bent plate.

[0016] Further, the bottom plate and the fixing plate are fixedly connected by a first bolt;

[0017] Wherein, a first through hole is provided on the fixing plate, a first threaded hole is provided on the bottom plate, and a first bolt passes through the first through hole and is threadedly connected with the first threaded hole.

[0018] Furthermore, a second through hole is provided on one end of the pressure plate away from the insertion hole, a turning hole is provided on the fixing plate, a second bolt passes through the second through hole and the turning hole and is threadedly connected with the second threaded hole, and the pressure plate rotates relative to the second bolt.

[0019] Furthermore, a third through hole is provided on the bent plate, a limiting bolt is inserted into the third through hole, and the length of the limiting bolt is greater than the hole length of the third through hole.

[0020] Furthermore, the first positioning hole and the second positioning hole are both located on an arc line with the axis of the second threaded hole as the center.

[0021] Furthermore, the included angle between the second threaded hole and the first positioning hole is 48°.

[0022] Furthermore, the angle between the second threaded hole and the second positioning hole is 65°.

[0023] Furthermore, internal threads are provided in the first positioning hole and the second positioning hole.

[0024] The beneficial effect of the present application is that it provides an S-shaped elbow tool for a turbine generator rotor coil, which has a simple structure and is easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0026] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0027] In the attached picture:

[0028] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0029] Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing the handle structure;

[0030] Figure 3 It is a schematic structural plan view of a part of the embodiment, mainly showing the bottom plate structure;

[0031] Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the fixed plate structure;

[0032] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing a bent plate structure;

[0033] Figure 6 It is a structural schematic diagram of a part of the embodiment, mainly showing the pressing plate structure;

[0034] Figure 7 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the rotor coil joint after bending.

[0035] Reference numerals:

[0036] 11. Fixing plate; 12. First bolt; 13. Bending plate; 14. Second bolt; 15. Bottom plate; 16. Pressing plate; 17. Limiting bolt; 18. Handle; 19. Rotor coil joint; 20. First threaded hole; 21. Second threaded hole; 22. First positioning hole; 23. Second positioning hole; 24. First groove; 25. Second groove; 26. Third through hole; 27. Insertion hole; 28. First through hole; 29. ​​Turning hole; 30. Second through hole. DETAILED DESCRIPTION

[0037] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0038] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0039] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0040] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0041] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0042] Reference Figure 1-Figure 7 A steam turbine generator rotor coil S-shaped elbow tool includes: a base plate 15, a fixing plate 11, a bending plate 13, a pressing plate 16, a second bolt 14, a handle 18, a first bolt 12, and a limiting bolt 17.

[0043] The bottom plate 15 is provided with a second threaded hole 21, a first positioning hole 22, and a second positioning hole 23. The first positioning hole 22 and the second positioning hole 23 are both located on an arc with the axis of the second threaded hole 21 as the center, and internal threads are provided in the first positioning hole 22 and the second positioning hole 23. The angle between the second threaded hole 21 and the first positioning hole 22 is 48°, and the angle between the second threaded hole 21 and the second positioning hole 23 is 65°.

[0044] A first groove 24 is provided on the bottom wall of the fixed plate 11 , and a second groove 25 is provided on the bottom wall of the bent plate 13 . When the fixed plate 11 and the bent plate 13 are spliced ​​together, the first groove 24 is connected to the second groove 25 .

[0045] The bottom plate 15 is fixedly connected with the fixed plate 11 by the first bolt 12. The fixed plate 11 is provided with a first through hole 28. The bottom plate 15 is provided with a first threaded hole 20. The first bolt 12 passes through the first through hole 28 and is threadedly connected with the first threaded hole 20. The pressing plate 16 is rotatably connected with the fixed plate 11 by the second bolt 14. The end of the pressing plate 16 away from the second bolt 14 is provided with a plug hole 27. The end of the pressing plate 16 away from the plug hole 27 is provided with a second through hole 30. The fixed plate 11 is provided with a steering hole 29. The second bolt 14 passes through the second through hole 30 and the steering hole 29 and is threadedly connected with the second threaded hole 21. The pressing plate 16 rotates relative to the second bolt 14. The bent plate 13 is provided with a third through hole 26. The third through hole 26 is inserted with a limiting bolt 17. The length of the limiting bolt 17 is greater than the hole length of the third through hole 26. The handle 18 is fixedly connected to the top wall of the bent plate 13.

[0046] Working or installation process:

[0047] Place the fixing plate 11 on the top wall of the bottom plate 15 and align the first through hole 28 with the first threaded hole 20, insert the first bolt 12 into the first through hole 28 and rotate the first bolt 12 so that the first bolt 12 is threadedly connected to the first threaded hole 20, and the first bolt 12 is threadedly connected to the first threaded hole 20, so that the fixing plate 11 is fixedly connected to the top wall of the bottom plate 15, and place the bent plate 13 on the top wall of the bottom plate 15, at this time, the fixing plate 11 and the bent plate 13 are spliced ​​together to form a square plate.

[0048] After the fixing plate 11 is fixed and spliced ​​with the bottom plate 15, the rotor coil connector 19 is inserted into one end of the first groove 24 and then passed out from one end of the second groove 25 (such as Figure 1 As shown in the figure, the pressing plate 16 is placed on the top wall of the fixing plate 11, and the second through hole 30 is aligned with the steering hole 29, the second bolt 14 is inserted into the steering hole 29 and the lower end of the second bolt 14 is threadedly connected with the second through hole 30, at this time, the pressing plate 16 is in rotational contact with the second bolt 14, the limiting bolt 17 is inserted into the insertion hole 27 and the third through hole 26, and the bent plate 13 is connected to the pressing plate 16 through the limiting bolt 17, and at this time, the bent plate 13 can realize a circular rotation with the axis of the third through hole 26 as the center relative to the pressing plate 16 and the limiting bolt 17;

[0049] The worker holds the handle 18 and rotates the handle 18 clockwise, driving the bent plate 13 to rotate around the axis of the second threaded hole 21 through the rotor coil connector 19 until the third through hole 26 is rotated to be aligned and connected with the first positioning hole 22, and the limiting bolt 17 is rotated to make the limiting bolt 17 threadedly connected with the first positioning hole 22; during the process of the bent plate 13 rotating around the axis of the second threaded hole 21, the bent plate 13 is bent and inserted into the rotor coil connector 19 in the second groove 25, and the rotor coil connector 19 is knocked flat;

[0050] After that, the limiting bolt 17 is rotated in the opposite direction to disengage the threaded connection between the limiting bolt 17 and the first positioning hole 22, and the handle 18 is rotated clockwise again to rotate the bent plate 13 and the handle 18 clockwise again with the axis of the second threaded hole 21 as the center, until the third through hole 26 and the limiting bolt 17 are aligned and connected with the second positioning hole 23, and the limiting bolt 17 is screwed in again to be threadedly connected with the second positioning hole 23. At this time, the handle 18 is rotated counterclockwise to rotate the bent plate 13 counterclockwise with the axis of the second positioning hole 23 as the center, and In the process of counterclockwise rotation, the bent plate 13 presses the rotor coil joint 19 through the side wall of the second groove 25, so that the rotor coil joint 19 is bent and deformed, and the rotor coil joint 19 is knocked flat again; after the bending work of the rotor coil joint 19 is completed, the first bolt 12, the second bolt 14, and the limit bolt 17 are rotated in the opposite direction, and the fixing plate 11, the pressing plate 16 and the bent plate 13 are removed from the top wall of the bottom plate 15, and the bent rotor coil joint 19 is removed from the top wall of the bottom plate 15. At this time, the rotor coil joint 19 is bent into an S shape (such as Figure 7 shown).

[0051] Repeat the above operation and bend several rotor coil connectors 19 in sequence.

[0052] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A turbine generator rotor coil S-bend tool, comprising: Bottom plate (15); The invention is characterized in that: wherein the bottom plate (15) is provided with a second threaded hole (21), a first positioning hole (22) and a second positioning hole (23); The steam turbine generator rotor coil S-bend tool also includes: A fixing plate (11) mounted on the top wall of the bottom plate (15); A bent plate (13) movably mounted on the fixed plate (11); The bottom wall of the fixed plate (11) is provided with a first groove (24), the bottom wall of the bent plate (13) is provided with a second groove (25), and when the fixed plate (11) and the bent plate (13) are spliced ​​together, the first groove (24) is connected to the second groove (25); A pressing plate (16) movably disposed on the fixing plate (11); The pressing plate (16) is rotatably connected to the fixing plate (11) via a second bolt (14), and a plug hole (27) is provided on one end of the pressing plate (16) away from the second bolt (14); A handle (18) is fixedly connected to the top wall of the bent plate (13).

2. The S-shaped elbow tool for a turbine generator rotor coil according to claim 1, characterized in that: The bottom plate (15) is fixedly connected to the fixing plate (11) via a first bolt (12); The fixing plate (11) is provided with a first through hole (28), the base plate (15) is provided with a first threaded hole (20), and the first bolt (12) passes through the first through hole (28) and is threadedly connected to the first threaded hole (20).

3. The S-shaped elbow tool for a turbine generator rotor coil according to claim 2, characterized in that: A second through hole (30) is provided on one end of the pressure plate (16) away from the insertion hole (27); a steering hole (29) is provided on the fixing plate (11); the second bolt (14) passes through the second through hole (30) and the steering hole (29) and is threadedly connected to the second threaded hole (21); the pressure plate (16) rotates relative to the second bolt (14).

4. The S-shaped elbow tool for a turbine generator rotor coil according to claim 3, characterized in that: The bent plate (13) is provided with a third through hole (26), a limiting bolt (17) is inserted into the third through hole (26), and the length of the limiting bolt (17) is greater than the hole length of the third through hole (26).

5. The S-shaped elbow tool for a turbine generator rotor coil according to claim 4, characterized in that: The first positioning hole (22) and the second positioning hole (23) are both located on an arc line with the axis of the second threaded hole (21) as the center.

6. The S-shaped elbow tool for a turbine generator rotor coil according to claim 5, characterized in that: The value of the included angle between the second threaded hole (21) and the first positioning hole (22) is 48°.

7. The S-shaped elbow tool for a turbine generator rotor coil according to claim 6, characterized in that: The value of the included angle between the second threaded hole (21) and the second positioning hole (23) is 65°.

8. The S-shaped elbow tool for a turbine generator rotor coil according to claim 7, characterized in that: The first positioning hole (22) and the second positioning hole (23) are provided with internal threads.

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