Generator stator maintenance platform

Abstract

The invention provides a generator stator maintenance platform, a generator stator is located in a foundation pit, a plurality of generator upper rack bases are evenly arranged on the side wall of the foundation pit in the circumferential direction, the generator upper rack bases are higher than the generator stator, the maintenance platform comprises an annular frame, the outer diameter of the annular frame is matched with the inner diameter of the generator stator, and the outer diameter of the annular frame is matched with the inner diameter of the generator stator. A first annular pedal and a second annular pedal are arranged on the foundation pit, the first annular pedal is higher than the second annular pedal, a first hanging ladder is arranged between the first annular pedal and the second annular pedal, and a second hanging ladder is arranged between the second annular pedal and the bottom surface of the foundation pit; and the generator ladder stand is used for connecting the first annular pedal and the top face of the foundation pit, a magnetic attraction structure is arranged on the generator ladder stand, and the magnetic attraction structure is used for being connected with the generator upper rack base in a magnetic attraction mode. According to the invention, the maintenance efficiency of maintainers can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of generator maintenance, and particularly to a maintenance platform for a generator stator. Background Art

[0002] The aisle of the existing generator stator maintenance platform (i.e., the generator ladder facilitating the staff to enter and exit the maintenance platform) is fixedly connected to the maintenance platform, making it difficult to be flexibly arranged at different upper frame base positions, restricting the operation convenience of maintenance personnel in different areas and affecting the maintenance efficiency. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a maintenance platform for a generator stator to solve all or part of the technical problems involved in the background art.

[0004] Based on the above purpose, the present invention provides a maintenance platform for a generator stator. The generator stator is located in a foundation pit, and a plurality of generator upper frame bases are evenly arranged in the circumferential direction on the side wall of the foundation pit. The generator upper frame bases are arranged higher than the generator stator. The maintenance platform includes:

[0005] An annular frame, whose outer diameter is adapted to the inner diameter of the generator stator, is provided with a first annular pedal and a second annular pedal. The first annular pedal is arranged higher than the second annular pedal, and a first hanging ladder is arranged between the first annular pedal and the second annular pedal. A second hanging ladder is arranged between the second annular pedal and the bottom surface of the foundation pit;

[0006] A generator ladder for connecting the first annular pedal and the top surface of the foundation pit. The generator ladder is provided with a magnetic attraction structure for magnetically connecting with the generator upper frame base.

[0007] Further, the generator ladder includes a first - layer ladder, a first aisle, a second - layer ladder and a second aisle connected in sequence. A first support foot is arranged at the bottom of the first - layer ladder, and the magnetic attraction structure is located at the bottom of the first aisle far from the first - layer ladder. A second support foot is arranged at the bottom of the second aisle. The first support foot is used to be located on the first annular pedal, and the second support foot is used to be located on the top surface of the foundation pit.

[0008] Further, the annular frame includes frame columns, horizontal double - link rods and inclined link rods. A plurality of the frame columns are arranged in the circumferential direction. Two ends of the inclined link rod are respectively connected to adjacent two of the frame columns through fixing buckles. Two ends of the horizontal double - link rod are respectively connected to adjacent two of the frame columns through clamping buckles to be vertically slidably connected with the frame columns and horizontally limit adjacent two of the frame columns.

[0009] Further, the frame columns include inner-diameter columns and outer-diameter columns, the horizontal double linkages include inner-diameter double linkages and outer-diameter double linkages, the inclined linkages include inner-diameter inclined linkages and outer-diameter inclined linkages. Both ends of the inner-diameter double linkages and the inner-diameter inclined linkages are respectively connected to two adjacent inner-diameter columns, and both ends of the outer-diameter double linkages and the outer-diameter inclined linkages are respectively connected to two adjacent outer-diameter columns.

[0010] Further, the frame columns further include connecting cross columns and stabilizing columns. Both ends of the connecting cross columns are respectively connected to the outer-diameter columns and the inner-diameter columns, and the stabilizing columns are connected to the middle of the connecting cross columns.

[0011] Further, an oil drain pan cover and a generator air brake are provided on the bottom surface of the foundation pit where the generator stator is located. The oil drain pan cover and the generator air brake are both located inside the inner ring of the generator stator. The oil drain pan cover is arranged closer to the inner side wall of the generator stator than the generator air brake. The bottom heights of the inner-diameter columns, the stabilizing columns, and the outer-diameter columns are different, with the bottom height of the outer-diameter columns < the bottom height of the stabilizing columns < the bottom height of the inner-diameter columns. The outer-diameter columns are located on the bottom surface of the foundation pit, the stabilizing columns are located on the oil drain pan cover, and the inner-diameter columns are located on the generator air brake.

[0012] Further, the connecting cross columns include a first connecting cross column and a second connecting cross column. The first connecting cross column is arranged higher than the second connecting cross column. The first annular pedal is connected to the annular frame through the first connecting cross column, and the second annular pedal is connected to the annular frame through the second connecting cross column.

[0013] Further, both the first annular pedal and the second annular pedal include a plurality of sector-shaped pedals. Hooks adapted to the connecting cross columns are provided on both sides of the sector-shaped pedals. The sector-shaped pedals are hung on two adjacent connecting cross columns through the hooks.

[0014] Further, the frame columns include a first sub-frame column, a second sub-frame column, and an outer-diameter support leg. The structures of the first sub-frame column and the second sub-frame column are the same. The top of the outer-diameter support leg is connected to the bottoms of the first sub-frame column and the second sub-frame column.

[0015] Further, both the first annular pedal and the second annular pedal further include a plurality of connecting pedals. The connecting pedals are located between two adjacent sector-shaped pedals and are rotatably connected to at least one of the sector-shaped pedals.

[0016] As can be seen from the above, a maintenance platform for a generator stator provided by the present invention includes an annular frame and a generator ladder. The annular frame is provided with a first annular pedal and a second annular pedal at different heights, as well as a second hanging ladder connecting the bottom surface of the foundation pit and the second annular pedal, and a first hanging ladder connecting the second annular pedal and the first annular pedal, so as to facilitate maintenance personnel to maintain the generator stator at different heights. The generator ladder is used to connect the first annular pedal of the annular frame and the top surface of the foundation pit where the generator stator is located. The maintenance personnel enter or leave the annular frame through the generator ladder. In addition, the generator ladder is provided with a magnetic attraction structure magnetically connected to the generator upper frame base, realizing the detachable connection between the generator ladder and multiple generator upper frames in the foundation pit, enabling the generator ladder to be flexibly arranged, facilitating the maintenance personnel to adjust the position of the generator ladder according to the actual maintenance position, so as to reduce the walking length of the maintenance personnel during the maintenance process and improve the operation convenience of the maintenance personnel. Compared with the generator stator maintenance platform with a fixed position of the generator ladder, the present application can greatly improve the maintenance efficiency of the maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic cross-sectional structure diagram of the foundation pit where the generator stator is located;

[0019] Figure 2 It is a schematic three-dimensional structure diagram of the generator stator maintenance platform according to an embodiment of the present invention;

[0020] Figure 3 It is a schematic three-dimensional structure diagram of the generator ladder according to an embodiment of the present invention;

[0021] Figure 4 It is a schematic three-dimensional structure diagram of the frame column according to an embodiment of the present invention;

[0022] Figure 5 It is a schematic three-dimensional structure diagram of the horizontal double link according to an embodiment of the present invention;

[0023] Figure 6 It is a schematic three-dimensional structure diagram of the inclined link according to an embodiment of the present invention;

[0024] Figure 7 It is a schematic three-dimensional structure diagram of the sector cover plate according to an embodiment of the present invention.

[0025] In the figure: 01, generator stator; 02, foundation pit; 03, generator upper frame base; 04, lower oil guide basin cover; 05, generator brake; 100, annular frame; 110, frame column; 111, inner diameter column; 112, outer diameter column; 113, connecting cross column; 114, stabilizing column; 115, strengthening cross column; 116, outer diameter support leg; 120, horizontal double link; 130, inclined link; 140, fixing buckle; 150, clamping buckle; 200, generator ladder; 210, magnetic attraction structure; 220, first layer of ladder; 230, first aisle; 240, second layer of ladder; 250, second aisle; 260, first support foot; 270, second support foot; 280, third support foot; 290, support frame; 300, first annular pedal; 400, second annular pedal; 500, first hanging ladder; 600, second hanging ladder; 700, fan-shaped pedal; 710, hook; 720, connecting pedal. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0027] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings understood by those of ordinary skill in the art to which this application belongs. The "first", "second" and similar terms used in this application do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0028] As described in the background art, in the existing generator stator maintenance platform, the aisles are fixed, which affects the stability of the generator stator maintenance platform and the maintenance efficiency of maintenance personnel.

[0029] Based on this, the present application proposes a generator stator maintenance platform to improve the maintenance efficiency of the generator stator.

[0030] This will be described in detail below through one or more specific embodiments.

[0031] In some embodiments, a maintenance platform for a generator stator 01, as Figure 1 、Figure 2 and Figure 3 As shown in Figure 3 , the generator stator 01 is located in the foundation pit 02. A plurality of generator upper frame bases 03 are evenly arranged in the circumferential direction on the side wall of the foundation pit 02. The generator upper frame bases 03 are arranged higher than the generator stator 01. The maintenance platform includes:

[0032] An annular frame 100, the outer diameter of which is adapted to the inner diameter of the generator stator 01. A first annular pedal 300 and a second annular pedal 400 are arranged thereon. The first annular pedal 300 is arranged higher than the second annular pedal 400. A first hanging ladder 500 is arranged between the first annular pedal 300 and the second annular pedal 400. A second hanging ladder 600 is arranged between the second annular pedal 400 and the bottom surface of the foundation pit 02;

[0033] A generator ladder 200 for connecting the first annular pedal 300 and the top surface of the foundation pit 02. A magnetic attraction structure 210 is arranged on the generator ladder 200. The magnetic attraction structure 210 is used for magnetically connecting with the generator upper frame base 03.

[0034] Specifically, the maintenance platform is made of aluminum alloy, which can greatly reduce the weight of the maintenance platform and is convenient for hoisting. The first annular pedal 300 and the second annular pedal 400 are anti-slip pattern aluminum plates with a thickness of 5 mm. Reinforcing ribs are arranged on the bottom surface thereof. The first annular pedal 300 and the second annular pedal 400 are both provided with kickboards integrally connected with a height of 120 mm.

[0035] The annular frame 100 is located inside the inner ring of the generator stator 01. The outer diameter of the annular frame 100 is slightly smaller than the inner diameter of the generator stator 01, so that the annular frame 100 can be placed inside the generator stator 01. And the outer diameter of the annular frame 100 cannot be much smaller than the inner diameter of the generator stator 01, to avoid that maintenance personnel cannot maintain the generator stator 01 when located on the first annular pedal 300 or the second annular pedal 400, which affects the maintenance operation and efficiency of the maintenance personnel on the generator stator 01.

[0036] The generator stator 01 is located within the foundation pit 02, i.e., on the bottom surface of the foundation pit 02. The annular frame 100 is located within the inner ring of the generator stator 01. The first hanging ladder 500 can connect the first annular pedal 300 and the second annular pedal 400, so that maintenance personnel can move between the first annular pedal 300 and the second annular pedal 400 for maintenance. The second hanging ladder 600 can connect the second annular pedal 400 and the bottom surface of the foundation pit 02, so that maintenance personnel can move between the bottom surface of the foundation pit 02 and the second annular pedal 400, thereby enabling maintenance personnel to perform maintenance on the generator stator 01 at different heights, which is beneficial to improving the practicality of the maintenance platform.

[0037] In addition, flip pedals are provided on both the first annular pedal 300 and the second annular pedal 400. The first hanging ladder 500 and the second hanging ladder 600 are both arranged close to the flip pedals, so that maintenance personnel can move between the bottom surface of the foundation pit 02, the first annular pedal 300 and the second annular pedal 400 by flipping the flip pedals.

[0038] Moreover, the first hanging ladder 500 and the second hanging ladder 600 can be either inclined or vertical.

[0039] It should be noted that the height difference between the bottom surface of the foundation pit 02 and the second annular pedal 400, the height difference between the first annular pedal 300 and the second annular pedal 400, and the height difference between the second annular pedal 400 and the top surface of the generator stator 01 are adapted to the height of a normal adult, so that maintenance personnel can perform maintenance on different heights of the generator stator 01.

[0040] Specifically, one end of the generator climbing ladder 200 is located on the first annular pedal 300, and the other end is located on the top surface of the foundation pit 02. The height and horizontal position of the upper frame of the generator are both between the first annular pedal 300 and the top surface of the foundation pit 02. The magnetic attraction structure 210 is arranged on the generator climbing ladder 200 and magnetically connected to the upper frame of the generator, realizing the detachable connection between the generator climbing ladder 200 and the upper frame of the generator, which can enhance the stability of the generator climbing ladder 200 and make the position of the generator climbing ladder 200 on the first annular pedal 300 not fixed, which is beneficial to improving the flexibility of the generator climbing ladder 200, so that the generator climbing ladder 200 can be moved to magnetically connect with different upper frames of the generator according to the maintenance needs of maintenance personnel.

[0041] In this embodiment, the annular frame 100 is provided with a first annular pedal 300 and a second annular pedal 400 at different heights, as well as a second hanging ladder 600 connecting the bottom surface of the foundation pit 02 and the second annular pedal 400, and a first hanging ladder 500 connecting the second annular pedal 400 and the first annular pedal 300, so that maintenance personnel can maintain the generator stator 01 at different heights. The generator ladder 200 is used to connect the first annular pedal 300 of the annular frame 100 and the top surface of the foundation pit 02 where the generator stator 01 is located. The maintenance personnel enter or leave the annular frame 100 through the generator ladder 200. In addition, the generator ladder 200 is provided with a magnetic attraction structure 210 magnetically connected to the generator upper frame base 03, realizing the detachable connection between the generator ladder 200 and multiple generator upper frames of the foundation pit 02, enabling the generator ladder 200 to be flexibly arranged, facilitating the maintenance personnel to adjust the position of the generator ladder 200 according to the actual maintenance position, reducing the walking length of the maintenance personnel during the maintenance process, and improving the operation convenience of the maintenance personnel. Compared with the maintenance platform for the generator stator 01 with a fixed position of the generator ladder 200, this application can greatly improve the maintenance efficiency of the maintenance personnel.

[0042] In some embodiments, as Figure 3 shown, the generator ladder 200 includes a first layer of ladder 220, a first aisle 230, a second layer of ladder 240, and a second aisle 250 connected in sequence. The bottom of the first layer of ladder 220 is provided with a first support foot 260, and the magnetic attraction structure 210 is located at the bottom of the first aisle 230 away from the first layer of ladder 220. The bottom of the second aisle 250 is provided with a second support foot 270. The first support foot 260 is used to be located on the first annular pedal 300, and the second support foot 270 is used to be located on the top surface of the foundation pit 02.

[0043] Specifically, there is a height difference between the top surface of the first annular pedal 300 and the top surface of the generator stator 01, a height difference between the top surface of the generator stator 01 and the generator upper frame base 03, and a height difference between the generator upper frame base 03 and the top surface of the foundation pit 02. The first layer of ladder 220 is used to overcome the height difference between the first annular pedal 300 and the generator upper frame base 03, the first aisle 230 is used to overcome the horizontal distance between the first annular pedal 300 and the generator upper frame base 03, the second layer of ladder 240 is used to overcome the height difference between the generator upper frame base 03 and the top surface of the foundation pit 02, and the second aisle 250 is used to enhance the connection stability between the second layer of ladder 240 and the top surface of the foundation pit 02.

[0044] The first support leg 260 and the second support leg 270 can enable the top surface of the first annular pedal 300 and the foundation pit 02 to stably support the generator ladder 200, thereby facilitating the stability of the generator ladder 200. The magnetic attraction structure 210 is located between the first support leg 260 and the second support leg 270, which can further enhance the stability of the generator ladder 200.

[0045] It should be noted that the first support leg 260 is connected to the bottom of the first layer of ladder 220. The first support leg 260 provides a fulcrum for the first layer of ladder 220. The first layer of ladder 220 is vertically arranged, which can avoid the situation of unstable fulcrum caused by the inclined arrangement of the first layer of ladder 220, and is beneficial to enhancing the stability of the generator ladder 200. The second support leg 270 is connected to the bottom of the second aisle 250, provides a fulcrum for the second aisle 250, and enhances the stability of the generator ladder 200.

[0046] In addition, due to the flexible arrangement of the generator ladder 200, in order to further enhance the stability of the generator ladder 200, a support frame 290 and a third support leg 280 are connected at the middle bottom of the first aisle 230. The third support leg 280 is used to contact the top surface of the generator stator 01, so that the top surface of the generator stator 01 supports the generator ladder 200, which is beneficial to the stability of the generator ladder 200. The top surface of the generator stator 01 is arranged close to the outer side wall of the generator stator 01. Therefore, the top surface of the generator stator 01 is the top surface of the generator stator 01 frame.

[0047] In some embodiments, such as Figure 2 、 Figure 5 and Figure 6 shown, the annular frame 100 includes frame columns 110, horizontal double links 120 and inclined links 130. A plurality of the frame columns 110 are circumferentially arranged. Two ends of the inclined link 130 are respectively connected to two adjacent frame columns 110 through fixing buckles 140. Two ends of the horizontal double link 120 are respectively connected to two adjacent frame columns 110 through clamping buckles 150 to be vertically slidably connected to the frame columns 110 and horizontally limit two adjacent frame columns 110.

[0048] Specifically, a plurality of circumferentially arranged frame columns 110 constitute the framework of the annular frame 100. The horizontal double links 120 and the inclined links 130 are used to fix the frame columns 110 and enhance the stability of the annular frame 100. A plurality of the frame columns 110 are circumferentially and evenly arranged, which is beneficial to further enhancing the stability of the annular frame 100.

[0049] It should be noted that both the second annular pedal 400 and the first annular pedal 300 are connected to the middle of the frame column 110. The horizontal double link 120 and the inclined link 130 are connected to the part of the frame column 110 above the first annular pedal 300. The horizontal double link 120 and the inclined link 130 are also connected to the part of the frame column 110 between the first annular pedal 300 and the second annular pedal 400. The horizontal double link 120 and the inclined link 130 are also connected to the part of the frame column 110 below the second annular pedal 400. That is, the horizontal double link 120 and the inclined link 130 are provided in multiple numbers in the vertical direction of the frame column 110, which can not only enhance the connection stability between the multiple frame columns 110 arranged in a circumferential direction, but also serve as the guardrails for the first annular pedal 300 and the second annular pedal 400 to protect the maintenance personnel, which is beneficial to ensuring the work safety of the maintenance personnel.

[0050] Specifically, the inclined link 130 is connected to the frame column 110 through the fixing buckle 140 to fix the frame column 110. The inclined link 130 can fixedly connect adjacent frame columns 110, which is beneficial to improving the stability of the annular frame 100 and further beneficial to improving the stability of the maintenance platform.

[0051] The horizontal double link 120 is connected to the frame column 110 through the clamping buckle 150 to limit the distance of the frame column 110. The horizontal double link 120 can slide up and down relative to the frame column 110. The clamping buckle 150 can be quickly connected to the frame column 110 to achieve quick positioning of the frame column 110, which is beneficial to improving the disassembly and assembly efficiency of the annular frame 100. In addition, the up and down sliding setting of the horizontal double link 120 enables the maintenance personnel to adjust the position of the horizontal double link 120 according to the maintenance position, avoiding the horizontal double link 120 affecting the maintenance, which is beneficial to improving the flexibility and maintenance efficiency of the maintenance platform.

[0052] In some embodiments, as Figure 4 shown, the frame column 110 includes an inner diameter column 111 and an outer diameter column 112. The horizontal double link 120 includes an inner diameter double link and an outer diameter double link. The inclined link 130 includes an inner diameter inclined link 130 and an outer diameter inclined link 130. Both ends of the inner diameter double link and the inner diameter inclined link 130 are respectively connected to two adjacent inner diameter columns 111. Both ends of the outer diameter double link and the outer diameter inclined link 130 are respectively connected to two adjacent outer diameter columns 112.

[0053] Specifically, multiple said frame columns 110 are arranged circumferentially. The inner diameter columns 111 constitute the inner diameter of the annular frame 100, and the outer diameter columns 112 constitute the outer diameter of the annular frame 100. The outer diameter columns 112 of two adjacent said frame columns 110 are connected by the outer diameter double link and the outer diameter diagonal link 130, so that the outer diameter columns 112 of two adjacent said frame columns 110 are stably connected. The inner diameter columns 111 of two adjacent said frame columns 110 are connected by the inner diameter double link and the inner diameter diagonal link 130, so that the inner diameter columns 111 of two adjacent said frame columns 110 are stably connected. Furthermore, the stable connection of multiple said frame columns 110 is realized. Both the first annular pedal 300 and the second annular pedal 400 are located between the inner diameter columns 111 and the outer diameter columns 112 and are adapted to the width of the frame columns 110.

[0054] In this embodiment, the frame columns 110, the horizontal double links 120 and the diagonal links 130 are all distinguished between inner diameter and outer diameter, so as to realize the positioning of the frame columns 110 on the outer diameter and the inner diameter respectively, which is beneficial to improving the stability of the annular frame 100 and further beneficial to improving the stability of the maintenance platform.

[0055] In some embodiments, as Figure 4 and Figure 7 shown, the frame column 110 further includes a connecting cross column 113 and a stabilizing column 114. Both ends of the connecting cross column 113 are respectively connected to the outer diameter column 112 and the inner diameter column 111, and the stabilizing column 114 is connected to the middle of the connecting cross column 113.

[0056] Specifically, the connecting cross column 113 is used to connect the inner diameter column 111, the outer diameter column 112 and the stabilizing column 114, so that the inner diameter column 111, the outer diameter column 112 and the stabilizing column 114 are stably arranged. The outer diameter column 112, the inner diameter column 111 and the stabilizing column 114 are all used to support the annular frame 100. The setting of the stabilizing column 114 increases the support structure of the maintenance platform, which is beneficial to reducing the stress on the inner diameter column 111 and the outer diameter column 112, and further improves the stability of the maintenance platform.

[0057] In some embodiments, as Figure 1 and Figure 4As shown in the figure, a lower oil guide basin cover 04 and a generator brake 05 are provided on the bottom surface of the foundation pit 02 where the generator stator 01 is located. The lower oil guide basin cover 04 and the generator brake 05 are both located inside the inner ring of the generator stator 01. The lower oil guide basin cover 04 is arranged closer to the inner side wall of the generator stator 01 than the generator brake 05. The bottom heights of the inner diameter column 111, the stable column 114, and the outer diameter column 112 are different, and the bottom height of the outer diameter column 112 < the bottom height of the stable column 114 < the bottom height of the inner diameter column 111. The outer diameter column 112 is located on the bottom surface of the foundation pit 02, the stable column 114 is located on the lower oil guide basin cover 04, and the inner diameter column 111 is located on the generator brake 05.

[0058] Specifically, the annular frame 100 is used to be located inside the inner ring of the generator stator 01. A lower oil guide basin cover 04 and a generator brake 05 located inside the inner ring of the generator stator 01 are provided on the bottom surface of the foundation pit 02 where the generator stator 01 is located. In order to avoid affecting the setting and stability of the annular frame 100 inside the inner ring of the generator stator 01, the bottom of the annular frame 100 is respectively supported by the bottom surface of the foundation pit 02, the lower oil guide basin cover 04, and the generator brake 05. While making full use of the bearing capacity of the lower oil guide basin cover 04 and the generator brake 05, it can also improve the adaptability and practicability of the annular frame 100.

[0059] It should be noted that adjustable feet are provided at the bottoms of the inner diameter column 111, the stable column 114, and the outer diameter column 112. The feet are used to support the annular frame 100. The setting of the feet enables the annular frame 100 to adapt to different generators and can flexibly adjust the corresponding column height according to the heights of the lower oil guide basin cover 04 and the generator brake 05 in different generators, which is beneficial to improving the versatility of the annular frame 100.

[0060] In addition, on the basis that the bottom of the outer diameter column 112 is lower than the bottom of the stable column 114, in order to further improve the stability of the frame column 110, a reinforcing cross column 115 is provided in the area where the stable column 114 is lower than the second annular pedal 400 to connect the stable column 114 and the outer diameter column 112.

[0061] In some embodiments, as Figure 4 shown, the connecting cross column 113 includes a first connecting cross column and a second connecting cross column. The first connecting cross column is arranged higher than the second connecting cross column. The first annular pedal 300 is connected to the annular frame 100 through the first connecting cross column, and the second annular pedal 400 is connected to the annular frame 100 through the second connecting cross column.

[0062] Specifically, the connecting cross-column 113 not only plays a role in enhancing the stability of the frame column 110, but also has the function of installing the first annular pedal 300 and the second annular pedal 400, thereby bearing the pressure of maintenance personnel on the first annular pedal 300 and the second annular pedal 400.

[0063] In this embodiment, the connecting cross-column 113 includes a first connecting cross-column and a second connecting cross-column with different heights to install the first annular pedal 300 and the second annular pedal 400 at different heights. The arrangement of the first connecting cross-column and the second connecting cross-column can not only enhance the stability of the frame column 110, but also increase the number of annular pedals of the maintenance platform, improving the practicability of the maintenance platform.

[0064] It should be noted that based on the height of the generator stator 01, the connecting cross-column 113 may also include a third connecting cross-column, a fourth connecting cross-column, etc. with different heights to install a third annular pedal, a fourth annular pedal, etc., thereby increasing the number of annular pedals of the maintenance platform, facilitating the maintenance personnel to use the maintenance platform to maintain the generator stator 01.

[0065] In some embodiments, as Figure 2 and Figure 7 shown, both the first annular pedal 300 and the second annular pedal 400 include a plurality of sector pedals 700. Hooks 710 adapted to the connecting cross-column 113 are provided on both sides of the sector pedal 700, and the sector pedal 700 is hung on two adjacent connecting cross-columns 113 through the hooks 710.

[0066] Specifically, the plurality of sector pedals 700 are arranged circumferentially to form the first annular pedal 300 or the second annular pedal 400. The plurality of sector pedals 700 are arranged circumferentially within the annular frame 100. Each sector pedal 700 is located between two adjacent connecting cross-columns 113 and is connected to the connecting cross-column 113 through the hooks 710, realizing the connection between the sector pedal 700 and the connecting cross-column 113, and realizing the circumferential arrangement of the sector pedal 700 through the circumferentially arranged frame columns 110.

[0067] It should be noted that anti-slip patterns are provided on the top surface of the sector pedal 700 to increase the friction force when maintenance personnel walk on the sector pedal 700, improving the practicability of the sector pedal 700. Reinforcing ribs are provided on the bottom surface of the sector pedal 700 to enhance the strength of the sector pedal 700.

[0068] In this embodiment, the sector pedal 700 is connected to the connecting cross-column 113 through the hook 710, which can achieve quick installation of the sector pedal 700, facilitate improving the disassembly and assembly efficiency of the sector pedal 700, and further improve the disassembly and assembly efficiency of the maintenance platform.

[0069] In some embodiments, as Figure 4 shown, the frame column 110 includes a first sub-frame column, a second sub-frame column, and an outer diameter support leg 116. The structures of the first sub-frame column and the second sub-frame column are the same, and the top of the outer diameter support leg 116 is connected to the outer diameter bottoms of the first sub-frame column and the second sub-frame column.

[0070] Specifically, each of the first sub-frame column and the second sub-frame column includes an outer diameter sub-column, an inner diameter sub-column, and a stabilizing sub-column. The bottoms of the outer diameter sub-column and the stabilizing sub-column are at the same height, the bottom of the inner diameter sub-column is higher than the outer diameter sub-column and the stabilizing sub-column. The inner diameter sub-columns of the first sub-frame column and the second sub-frame column together form the inner diameter column 111 of the frame column 110. The stabilizing sub-columns of the first sub-frame column and the second sub-frame column together form the stabilizing column 114 of the frame column 110. The outer diameter support leg 116 is connected to the bottoms of the outer diameter sub-columns of the first sub-frame column and the second sub-frame column to form the outer diameter column 112 of the frame column 110, realizing that the bottom height of the outer diameter column 112 < the bottom height of the stabilizing column 114 < the bottom height of the inner diameter column 111. The outer diameter support leg 116 not only serves to extend the outer diameter sub-column but also can connect the first sub-frame column and the second sub-frame column together, which is beneficial to improving the stability of the annular frame 100.

[0071] In addition, each of the first sub-frame column 110 and the second sub-frame column 110 includes a sub-connecting cross-column 113. The sector pedal 700 is located between two adjacent frame columns 110, and both ends of the sector pedal 700 are connected to the sub-connecting cross-columns 113 of the frame column 110, which can avoid the situation where two adjacent sector pedals 700 are connected to the same connecting cross-column 113 and affect each other, and is beneficial to improving the disassembly and assembly efficiency and stability of the annular frame 100.

[0072] In some embodiments, as Figure 2 and Figure 7 shown, both the first annular pedal 300 and the second annular pedal 400 further include a plurality of connecting pedals 720. The connecting pedals 720 are located between two adjacent sector pedals 700 and are rotationally connected to at least one sector pedal 700.

[0073] Specifically, two adjacent sector pedals 700 are respectively connected to the first sub-frame column and the second sub-frame column of a frame column 110, resulting in a gap between two adjacent sector pedals 700. The connecting pedal 720 is located between two adjacent sector pedals 700 and can block the gap, which is beneficial to the integrity and aesthetics of the first annular pedal 300 and the second annular pedal 400. On this basis, the connecting pedal 720 is rotatably connected to at least one of the two adjacent sector pedals 700, which can avoid the situation of installing the connecting pedal 720 after installing the sector pedals 700, is beneficial to improving the disassembly and assembly efficiency of the first annular pedal 300 and the second annular pedal 400, and further beneficial to improving the disassembly and assembly efficiency of the maintenance platform.

[0074] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present application (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0075] Embodiments of the present invention are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A maintenance platform for a generator stator, the generator stator is located in a foundation pit, and a plurality of generator upper frame bases are evenly arranged circumferentially on the side wall of the foundation pit. The generator upper frame bases are arranged higher than the generator stator. It is characterized in that, The maintenance platform includes: An annular frame, whose outer diameter is adapted to the inner diameter of the generator stator, on which a first annular pedal and a second annular pedal are provided. The first annular pedal is arranged higher than the second annular pedal. A first hanging ladder is arranged between the first annular pedal and the second annular pedal, and a second hanging ladder is arranged between the second annular pedal and the bottom surface of the foundation pit. A generator climbing ladder for connecting the first annular pedal and the top surface of the foundation pit. A magnetic attraction structure is arranged on the generator climbing ladder, and the magnetic attraction structure is used for magnetically connecting with the upper frame base of the generator.

2. The generator stator maintenance platform according to claim 1, wherein The generator climbing ladder includes a first-layer climbing ladder, a first aisle, a second-layer climbing ladder, and a second aisle connected in sequence. A first support foot is arranged at the bottom of the first-layer climbing ladder. The magnetic attraction structure is located at the bottom of one end of the first aisle away from the first-layer climbing ladder. A second support foot is arranged at the bottom of the second aisle. The first support foot is used for being located on the first annular pedal, and the second support foot is used for being located on the top surface of the foundation pit.

3. The generator stator overhaul platform according to claim 1, characterized in that, The annular frame includes frame columns, horizontal double connecting rods, and inclined connecting rods. A plurality of the frame columns are arranged circumferentially. Two ends of the inclined connecting rod are respectively connected to two adjacent frame columns through fixing buckles. Two ends of the horizontal double connecting rod are respectively connected to two adjacent frame columns through clamping buckles to be vertically slidably connected with the frame columns and horizontally limit two adjacent frame columns.

4. The generator stator maintenance platform according to claim 3, wherein The frame column includes an inner-diameter column and an outer-diameter column. The horizontal double connecting rod includes an inner-diameter double connecting rod and an outer-diameter double connecting rod. The inclined connecting rod includes an inner-diameter inclined connecting rod and an outer-diameter inclined connecting rod. Two ends of the inner-diameter double connecting rod and the inner-diameter inclined connecting rod are respectively connected to two adjacent inner-diameter columns. Two ends of the outer-diameter double connecting rod and the outer-diameter inclined connecting rod are respectively connected to two adjacent outer-diameter columns.

5. The generator stator maintenance platform according to claim 4, characterized in that The frame column further includes a connecting cross column and a stabilizing column. Two ends of the connecting cross column are respectively connected to the outer-diameter column and the inner-diameter column. The stabilizing column is connected to the middle of the connecting cross column.

6. The generator stator maintenance platform according to claim 5, wherein a lower oil guide basin cover and a generator air brake are provided on the bottom surface of the foundation pit where the generator stator is located. Both the lower oil guide basin cover and the generator air brake are located inside the inner ring of the generator stator. The lower oil guide basin cover is arranged closer to the inner side wall of the generator stator than the generator air brake. It is characterized in that, Bottom heights of the inner-diameter column, the stabilizing column, and the outer-diameter column are different. The bottom height of the outer-diameter column < the bottom height of the stabilizing column < the bottom height of the inner-diameter column. The outer-diameter column is located on the bottom surface of the foundation pit. The stabilizing column is located on the lower oil guiding basin cover. The inner-diameter column is located on the generator air brake.

7. The generator stator overhaul platform according to claim 6, wherein The connecting cross column includes a first connecting cross column and a second connecting cross column. The first connecting cross column is arranged higher than the second connecting cross column. The first annular pedal is connected to the annular frame through the first connecting cross column. The second annular pedal is connected to the annular frame through the second connecting cross column.

8. The generator stator maintenance platform according to claim 6, characterized in that, Both the first annular pedal and the second annular pedal include a plurality of sector-shaped pedals. Hooks adapted to the connecting cross column are arranged on both sides of the sector-shaped pedal. The sector-shaped pedal is hung on two adjacent connecting cross columns through the hooks.

9. The generator stator maintenance platform according to claim 8, characterized in that, The frame column includes a first sub-frame column, a second sub-frame column, and an outer diameter support leg. The structures of the first sub-frame column and the second sub-frame column are the same. The top of the outer diameter support leg is connected to the bottoms of the first sub-frame column and the second sub-frame column.

10. The generator stator maintenance platform according to claim 9, characterized in that, Both the first annular pedal and the second annular pedal further include a plurality of connecting pedals. The connecting pedals are located between two adjacent sector pedals and are rotatably connected to at least one of the sector pedals.

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