Overhanging socket type rotor hoisting construction platform

Abstract

The utility model provides an overhanging socket type rotor hoisting construction platform. The overhanging socket type rotor hoisting construction platform comprises a trapezoidal platform and an overhanging supporting frame. The number of the trapezoid platforms and the number of the overhanging supporting frames are consistent with the number of supporting legs of the stator base. The overhanging support frame is connected with the stator; hooks are arranged on two sides of the trapezoidal platform, and at least two hooks are arranged on any side of the trapezoidal platform; the hooks on the two sides of the trapezoid platform are inserted into the overhanging supporting frame so that the trapezoid platform can be connected with the overhanging supporting frame. The overhanging supporting frame is connected with the stator, the structural form of a stator bar and a collector ring does not need to be considered, disassembly is convenient, finished product protection is facilitated, the trapezoidal platform is connected with the overhanging supporting frame in a socket and spigot joint mode, the trapezoidal platform is located on the overhanging supporting frame, and a hook of the trapezoidal platform is inserted into the overhanging supporting frame. The trapezoidal platform has a self-locking effect when moving inwards or outwards in the radial direction, so that the trapezoidal platform is stable and reliable, and the problems that in the rotor hoisting process of a general ponding wheel generator set, procedures are tedious, and potential safety and quality hazards are large are solved.

Description

Technical Field

[0001] This application relates to the field of hydro-generator installation technology, specifically to a cantilevered socket-type rotor hoisting construction platform. Background Technology

[0002] In the power industry, the installation of large generator sets is a complex and meticulous task, with the hoisting of the rotor to its installation position being particularly critical. This step demands extremely high precision and safety to ensure the unit can operate stably and efficiently. As the rotor is lifted and slowly lowered into the stator, long, narrow inserts are inserted at specific locations as cushioning material to prevent collisions or scratches between the two. These inserts are typically made of wood or insulating material and need to be evenly distributed circumferentially.

[0003] During the generator rotor hoisting process, workers often stand directly on the stator bars and busbars to place the insert plates. However, this method not only makes it difficult for workers to move freely, increasing the operational complexity, but also poses a risk of damage to the bars and busbars due to trampling. Therefore, a temporary construction platform can be pre-built above the bars, which is fixed to the ring plate or upper gear plate on the stator base by inner support legs. However, because sensitive areas such as the bars, busbars, and their supports must be avoided, the installation and dismantling of the platform becomes very cumbersome, and magnetic materials may be accidentally left near the bars during construction, posing a potential threat to the normal operation of subsequent equipment. Utility Model Content

[0004] This application provides a cantilevered socket-type rotor hoisting construction platform to solve the problems of complicated procedures and significant safety and quality risks during the hoisting of large-volume hydro-generator rotors.

[0005] This application provides a cantilevered socket-type rotor hoisting construction platform for use in stators. The stator includes a stator base, comprising a trapezoidal platform and a cantilevered support frame.

[0006] The number of the trapezoidal platform and the cantilever support frame is the same as the number of the stator base legs;

[0007] The cantilever support frame is connected to the stator;

[0008] The trapezoidal platform is provided with hooks on both sides, and the number of hooks on any side of the trapezoidal platform is at least two;

[0009] The hooks on both sides of the trapezoidal platform are inserted into the cantilever support frame to connect the trapezoidal platform to the cantilever support frame.

[0010] Optionally, the trapezoidal platform includes a main side beam and a secondary side beam; the main side beams are arranged in parallel, the two main side beams have different lengths, one end of the main side beam on the same side is connected to the secondary side beam, and the secondary side beam is connected to the hook.

[0011] Optionally, the trapezoidal platform further includes a secondary inner beam and a support plate; the secondary inner beam is connected to the main side beam, and the secondary side beam is perpendicular to any one of the main side beams; the support plate is disposed within the trapezoidal frame formed by the connection of the main side beam and the secondary side beam.

[0012] Optionally, the cantilever support frame includes a cantilever beam, a base plate, and bolts; two base plates are arranged in parallel, each base plate has screw holes that coincide with the openings of the stator, the base plates are connected to the stator by the bolts, and the cantilever beam is connected to the base plates.

[0013] Optionally, the opening width of the cantilever beam is three times the thickness of the hook, and the hook is inserted into the opening end of the cantilever beam to connect the trapezoidal platform to the cantilever support frame.

[0014] Optionally, the angle between the cantilever beam and the foundation slab is a first angle, and the angle between the secondary side beam and the main side beam is a second angle, wherein the first angle and the second angle are the same.

[0015] Optionally, the cantilever beam is welded to the foundation plate.

[0016] Optionally, the trapezoidal platform further includes a safety railing; the safety railing is connected to the longer main side beam and is perpendicular to the horizontal plane.

[0017] Optionally, it also includes a steel inclined ladder; one end of the steel inclined ladder is connected to the stator pit hood wall, and the other end of the steel inclined ladder is connected to the trapezoidal platform.

[0018] As can be seen from the above technical solution, this application provides a cantilevered socket-type rotor hoisting construction platform, including: a trapezoidal platform and a cantilevered support frame; the number of trapezoidal platforms and cantilevered support frames is consistent with the number of legs of the stator base; the cantilevered support frame is connected to the stator; hooks are provided on both sides of the trapezoidal platform, and the number of hooks on any side of the trapezoidal platform is at least two; the hooks on both sides of the trapezoidal platform are respectively inserted into the cantilevered support frame to connect the trapezoidal platform and the cantilevered support frame. By connecting the cantilevered support frame to the stator, there is no need to consider the structural form of the stator bars and busbars, which is convenient for disassembly and easy for finished product protection. The connection between the trapezoidal platform and the cantilevered support frame adopts a socket-type connection, with the trapezoidal platform located on the cantilevered support frame and the hooks of the trapezoidal platform inserted into the cantilevered support frame. The trapezoidal platform has a self-locking effect when moving radially inward or outward, making the trapezoidal platform stable and reliable, thus solving the problem of cumbersome procedures and significant safety and quality hazards during the hoisting of large-volume hydro-generator rotors. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the cantilevered socket-type rotor hoisting construction platform provided in the embodiments of this application;

[0021] Figure 2 This is a schematic diagram of the cantilever support frame structure provided in the embodiments of this application;

[0022] Figure 3 This is a schematic diagram of the trapezoidal platform structure provided in an embodiment of this application;

[0023] Figure 4 This is a partial schematic diagram of the connection position between the trapezoidal platform and the cantilever support frame provided in an embodiment of this application.

[0024] Figure label:

[0025] Among them, 1-trapezoidal platform; 2-cantilever support frame; 3-steel inclined ladder; 4-stator; 5-machine pit ventilation hood wall; 6-main side beam; 7-secondary side beam; 8-secondary inner beam; 9-support plate; 10-safety railing; 11-hook; 12-cantilever beam; 13-foundation plate; 14-bolt. Detailed Implementation

[0026] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application as detailed in the claims.

[0027] In the power industry, the installation of large generator sets is a complex and meticulous task, with the hoisting of the rotor to its installation position being particularly critical. This step demands extremely high precision and safety to ensure the unit can operate stably and efficiently. As the rotor is lifted and slowly lowered into the stator, long, narrow inserts are inserted at specific locations as cushioning material to prevent collisions or scratches between the two. These inserts are typically made of wood or insulating material and need to be evenly distributed circumferentially.

[0028] During the generator rotor hoisting process, workers often stand directly on the stator bars and busbars to place the insert plates. However, this method not only makes it difficult for workers to move freely, increasing the operational complexity, but also poses a risk of damage to the bars and busbars due to trampling. Therefore, a temporary construction platform can be pre-built above the bars, which is fixed to the ring plate or upper gear plate on the stator base by inner support legs. However, because sensitive areas such as the bars, busbars, and their supports must be avoided, the installation and dismantling of the platform becomes very cumbersome, and magnetic materials may be accidentally left near the bars during construction, posing a potential threat to the normal operation of subsequent equipment.

[0029] To address the issues of complex procedures and significant safety and quality risks during the hoisting of large-volume hydro-generator rotors, see [reference needed]. Figure 1 This application provides a cantilevered socket-type rotor hoisting construction platform applied to a stator 4. The stator 4 includes a stator base. The cantilevered socket-type rotor hoisting construction platform includes a trapezoidal platform 1 and a cantilevered support frame 2. The number of trapezoidal platforms 1 and cantilevered support frames 2 is the same as the number of legs of the stator base. The cantilevered support frame 2 is connected to the stator 4. Hooks 11 are provided on both sides of the trapezoidal platform 1, and the number of hooks 11 on any side of the trapezoidal platform 1 is at least two. The hooks 11 on both sides of the trapezoidal platform 1 are respectively inserted into the cantilevered support frame 2 to connect the trapezoidal platform 1 and the cantilevered support frame 2.

[0030] The cantilevered socket type rotor hoisting construction platform consists of multiple trapezoidal platforms 1 and the same number of cantilevered support frames 2. The number of trapezoidal platforms 1 and cantilevered support frames 2 is the same as the number of legs of the stator frame.

[0031] For example, such as Figure 1 As shown, Figure 1This embodiment of a cantilevered socket hoisting construction platform includes eight trapezoidal platforms 1 and eight cantilevered support frames 2. By connecting the cantilevered support frames 2 to the stator 4, there is no need to consider the structural form of the stator conductor bars and busbars. Disassembly is convenient and finished product protection is easy. The trapezoidal platforms 1 and the cantilevered support frames 2 are connected by a socket. The trapezoidal platforms 1 are located on the cantilevered support frames 2 and the hooks 11 of the trapezoidal platforms 1 are inserted into the cantilevered support frames 2. The trapezoidal platforms 1 have a self-locking effect when moving radially inward or outward, making the trapezoidal platforms 1 stable and reliable. This solves the problem of complicated procedures and major safety and quality hazards during the hoisting of large-volume hydro-generator rotors.

[0032] In some embodiments, such as Figure 2 As shown, the trapezoidal platform 1 includes a main side beam 6 and a secondary side beam 7. The main side beams 6 are arranged in parallel, with different lengths. One end of each main side beam 6 on the same side is connected to the secondary side beam 7, and the secondary side beam 7 is connected to a hook 11. The trapezoidal platform 1 also includes a secondary inner beam 8 and a support plate 9. The secondary inner beam 8 is connected to the main side beams 6, and the secondary side beam 7 is perpendicular to either main side beam 6. The support plate 9 is disposed within the trapezoidal frame formed by the connection of the main side beams 6 and the secondary side beams 7.

[0033] Specifically, such as Figure 4 As shown, each trapezoidal platform 1 consists of two main side beams 6, two secondary side beams 7, three secondary inner beams 8, a support plate 9, and four hooks 11. The two main side beams 6 are arranged parallel to each other, one long and one short. The two ends of the main side beams 6 are connected by the secondary side beams 7 to form a trapezoidal frame. The three secondary inner beams 8 are perpendicular to the main side beams 6 and connect the two main side beams 6. The support plate 9 is placed in the trapezoidal area formed by the connection of the main side beams 6 and the secondary side beams 7 and is welded together. Finally, the secondary side beams 7 on both sides are connected to two hooks 11, where the hooks 11 are rectangular pieces. During installation, the hooks 11 are inserted into the cantilever support frame 2 to connect the trapezoidal platform 1 to the cantilever support frame 2.

[0034] In some embodiments, such as Figure 3 As shown, the cantilever support frame 2 includes a cantilever beam 12, a base plate 13, and bolts 14; the two base plates 13 are arranged in parallel, and the base plates 13 are provided with screw holes, which coincide with the opening positions of the stator 4. The base plates 13 are connected to the stator 4 by bolts 14, and the cantilever beam 12 is connected to the base plates 13.

[0035] Specifically, each cantilever support frame 2 consists of two base plates 13, two cantilever beams 12, and four matching bolts 14. The two cantilever beams 12 are placed in parallel with a spacing of 30mm. The two base plates 13 are connected to the cantilever beams 12. The base plates 13 are provided with screw holes. The position and size of the screw holes on the base plates 13 match the position of the hoisting machining opening on the stator 4. During installation, the base plates 13 are first fixed to the stator 4 with bolts 14. Then, the cantilever beams 12 are placed on the base plates 13. The inclination of the cantilever beams 12 is set so that when the trapezoidal platform 1 is installed, the hooks 11 can be inserted into the cantilever beams 12.

[0036] Since two different trapezoidal platform hooks 11 are inserted into the cantilever beam 12, in some embodiments, the opening width of the cantilever beam 12 is three times the thickness of the hook 11. The hook 11 is inserted into the opening end of the cantilever beam 12 to connect the trapezoidal platform 1 to the cantilever support frame 2. By making the opening width of the cantilever beam 12 three times the thickness of the hook 11, the stability and safety of the installation and the overall structure can be maintained even when there are tolerances in the dimensions of the hook 11.

[0037] In some embodiments, the angle between the cantilever beam 12 and the foundation slab 13 is a first angle, and the angle between the secondary side beam 7 and the main side beam 6 is a second angle, with the first and second angles being the same. Setting the angle between the cantilever beam 12 and the foundation slab 13 based on the angle between the secondary side beam 7 and the main side beam 6 facilitates the accurate insertion of the hooks 11 on the secondary side beam 7 into the opening of the cantilever beam 12. Since the two secondary side beams 7 are not parallel, after the hooks 11 of the secondary side beam 7 are inserted into the cantilever beam 12, the trapezoidal platform 1 moves radially inward or radially outward along the opening length of the cantilever beam 12. The hooks 11 interact with each other, creating a self-locking effect between the trapezoidal platform 1 and the cantilever beam 12, allowing the trapezoidal platform 1 to be stably positioned on the cantilever support frame 2.

[0038] In some embodiments, the cantilever beam 12 is welded to the foundation slab 13. After determining the included angle between the cantilever beam 12 and the foundation slab 13, the cantilever beam 12 and the foundation slab 13 can be connected together by welding. Welding ensures a firm bond between the cantilever beam 12 and the foundation slab 13, improving the stability and safety of the overall structure. Through welding, the force on the cantilever beam 12 can be effectively transferred to the foundation slab 13, avoiding structural problems caused by loose or failed connections.

[0039] In some embodiments, the trapezoidal platform 1 further includes a safety railing 10; the safety railing 10 is connected to the longer main side beam 6 and is perpendicular to the horizontal plane. By installing the safety railing 10, the possibility of collisions between workers and the rotor lifting components can be minimized, protecting the personal safety of workers during construction.

[0040] In some embodiments, a steel inclined ladder 3 is also included; one end of the steel inclined ladder 3 is connected to the pit ventilation hood wall 5 of the stator 4, and the other end of the steel inclined ladder 3 is connected to the trapezoidal platform 1. Since the pit ventilation hood wall 5 is relatively high and the trapezoidal platform 1 is relatively low, by setting the steel inclined ladder 3, it is convenient for workers to enter the trapezoidal platform 1 from the pit ventilation hood wall 5.

[0041] As can be seen from the above technical solution, this application provides a cantilevered socket type rotor hoisting construction platform, including: a trapezoidal platform 1 and a cantilevered support frame 2; the number of trapezoidal platform 1 and cantilevered support frame 2 is the same as the number of legs of the stator base; the cantilevered support frame 2 is connected to the stator 4; hooks 11 are provided on both sides of the trapezoidal platform 1, and the number of hooks 11 on any side of the trapezoidal platform 1 is at least two; the hooks 11 on both sides of the trapezoidal platform 1 are respectively inserted into the cantilevered support frame 2 to connect the trapezoidal platform 1 and the cantilevered support frame 2. By connecting the cantilever support frame 2 to the stator 4, there is no need to consider the structural form of the stator bars and busbars. Disassembly is convenient and finished product protection is easy. The trapezoidal platform 1 is connected to the cantilever support frame 2 in a socket-insertion manner. The trapezoidal platform 1 is located on the cantilever support frame 2 and the hook 11 of the trapezoidal platform 1 is inserted into the cantilever support frame 2. The trapezoidal platform 1 has a self-locking effect when moving radially inward or outward, making the trapezoidal platform 1 stable and reliable. This solves the problem of complicated procedures and major safety and quality hazards during the hoisting of large-volume hydro-generator rotors.

[0042] Similar parts between the embodiments provided in this application can be referred to mutually. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods extended from the solution of this application without creative effort shall fall within the scope of protection of this application.

Claims

1. A cantilevered socket-type rotor hoisting construction platform, applied to a stator, the stator including a stator base, characterized in that, include: Trapezoidal platform (1) and cantilevered support frame (2); The number of the trapezoidal platform (1) and the cantilever support frame (2) is the same as the number of the legs of the stator base; The cantilever support frame (2) is connected to the stator; The trapezoidal platform (1) is provided with hooks (11) on both sides, and the number of hooks (11) on any side of the trapezoidal platform (1) is at least two; The hooks (11) on both sides of the trapezoidal platform (1) are inserted into the cantilever support frame (2) to connect the trapezoidal platform (1) with the cantilever support frame (2).

2. The cantilevered socket-type rotor hoisting construction platform according to claim 1, characterized in that, The trapezoidal platform (1) includes a main side beam (6) and a secondary side beam (7); the main side beams (6) are arranged in parallel, and the two main side beams (6) have different lengths. One end of the main side beam (6) on the same side is connected to the secondary side beam (7), and the secondary side beam (7) is connected to the hook (11).

3. The cantilevered socket-type rotor hoisting construction platform according to claim 2, characterized in that, The trapezoidal platform (1) also includes a secondary inner beam (8) and a support plate (9); the secondary inner beam (8) is connected to the main side beam (6), and the secondary inner beam (8) is perpendicular to any one of the main side beams (6); the support plate (9) is disposed in the trapezoidal frame formed by the connection of the main side beam (6) and the secondary side beam (7).

4. The cantilevered socket-type rotor hoisting construction platform according to claim 2, characterized in that, The cantilever support frame (2) includes a cantilever beam (12), a base plate (13), and bolts (14); the two base plates (13) are arranged in parallel, the base plates (13) are provided with screw holes, the screw holes coincide with the opening position of the stator, the base plates (13) are connected to the stator by the bolts (14), and the cantilever beam (12) is connected to the base plates (13).

5. The cantilevered socket-type rotor hoisting construction platform according to claim 4, characterized in that, The opening width of the cantilever beam (12) is three times the thickness of the hook (11), and the hook (11) is inserted into the opening end of the cantilever beam (12) to connect the trapezoidal platform (1) with the cantilever support frame (2).

6. The cantilevered socket-type rotor hoisting construction platform according to claim 4, characterized in that, The angle between the cantilever beam (12) and the foundation slab (13) is the first angle, and the angle between the secondary side beam (7) and the main side beam (6) is the second angle. The first angle and the second angle are the same.

7. The cantilevered socket-type rotor hoisting construction platform according to claim 4, characterized in that, The cantilever beam (12) is welded to the base plate (13).

8. The cantilevered socket-type rotor hoisting construction platform according to claim 2, characterized in that, The trapezoidal platform (1) also includes a safety railing (10); the safety railing (10) is connected to the longer main side beam (6), and the safety railing (10) is perpendicular to the horizontal plane.

9. The cantilevered socket-type rotor hoisting construction platform according to claim 1, characterized in that, It also includes a steel inclined ladder (3); one end of the steel inclined ladder (3) is connected to the stator pit hood wall (5), and the other end of the steel inclined ladder (3) is connected to the trapezoidal platform (1).

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