Generator stator maintenance platform

Abstract

The utility model 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 utility model relates to generator overhauling technical field especially relates to a generator stator overhauling platform. BACKGROUND

[0002] The passageway (i.e. the generator ladder for facilitating the access of the staff to the overhauling platform) of the existing generator stator overhauling platform is fixedly connected with the overhauling platform, and it is difficult to be flexibly arranged at different machine rack base positions, thereby limiting the work convenience of the overhauling personnel in different areas and affecting the overhauling efficiency. UTILITY MODEL CONTENTS

[0003] Therefore, the utility model provides a generator stator overhauling platform to solve all or part of the technical problems in the background art.

[0004] In order to achieve the above purpose, the utility model provides a generator stator overhauling platform, the generator stator is located in the foundation pit, a plurality of generator machine rack bases are evenly arranged on the side wall of the foundation pit in a ring shape, the generator machine rack base is higher than the generator stator, and the overhauling platform comprises:

[0005] A ring-shaped frame, the outer diameter of which is matched with the inner diameter of the generator stator, and a first ring-shaped footboard and a second ring-shaped footboard are arranged on the ring-shaped frame, the first ring-shaped footboard is higher than the second ring-shaped footboard, a first ladder is arranged between the first ring-shaped footboard and the second ring-shaped footboard, and a second ladder is arranged between the second ring-shaped footboard and the bottom surface of the foundation pit.

[0006] A generator ladder is arranged to connect the first ring-shaped footboard and the top surface of the foundation pit, and a magnetic attraction structure is arranged on the generator ladder, and the magnetic attraction structure is arranged to be magnetically connected with the generator machine rack base.

[0007] Further, the generator ladder comprises a first layer of ladder, a first passageway, a second layer of ladder and a second passageway which are connected in sequence, a first supporting leg is arranged at the bottom of the first layer of ladder, the magnetic attraction structure is arranged at the bottom of one end of the first passageway which is away from the first layer of ladder, a second supporting leg is arranged at the bottom of the second passageway, the first supporting leg is arranged on the first ring-shaped footboard, and the second supporting leg is arranged on the top surface of the foundation pit.

[0008] Further, the ring-shaped frame comprises a frame column, a horizontal double connecting rod and an inclined connecting rod, a plurality of frame columns are arranged in a ring shape, the two ends of the inclined connecting rod are connected with two adjacent frame columns through fixing buckles, and the two ends of the horizontal double connecting rod are connected with two adjacent frame columns through clamping buckles, so as to be vertically slidably connected with the frame columns and horizontally limit the two adjacent frame columns.

[0009] Further, the frame columns include inner diameter columns and outer diameter columns, the horizontal double connecting rods include inner diameter double connecting rods and outer diameter double connecting rods, the inclined connecting rods include inner diameter inclined connecting rods and outer diameter inclined connecting rods, both ends of the inner diameter double connecting rods and the inner diameter inclined connecting rods are connected with two adjacent inner diameter columns respectively, both ends of the outer diameter double connecting rods and the outer diameter inclined connecting rods are connected with two adjacent outer diameter columns respectively.

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

[0011] Further, the bottom surface of the foundation pit where the generator stator is located is provided with a lower oil guide basin cover and a generator air brake, the lower oil guide basin cover and the generator air brake are located in the inner ring of the generator stator, the lower oil guide basin cover is arranged close to the inner side wall of the generator stator relative to the generator air brake, the bottom heights of the inner diameter columns, the stabilizing columns and the outer diameter columns are different, 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 lower oil guide basin cover, and the inner diameter columns are located on the generator air brake.

[0012] Further, the connecting cross columns include first connecting cross columns and second connecting cross columns, the first connecting cross columns are arranged higher than the second connecting cross columns, the first ring-shaped pedal is connected with the ring-shaped frame through the first connecting cross columns, and the second ring-shaped pedal is connected with the ring-shaped frame through the second connecting cross columns.

[0013] Further, the first ring-shaped pedal and the second ring-shaped pedal each include a plurality of sector-shaped pedals, both sides of the sector-shaped pedal are provided with hooks matched with the connecting cross columns, and the sector-shaped pedal is hung with two adjacent connecting cross columns through the hooks.

[0014] Further, the frame columns include first sub-frame columns, second sub-frame columns and outer diameter support legs, the first sub-frame columns and the second sub-frame columns are the same in structure, and the top of the outer diameter support legs is connected with the bottom of the first sub-frame columns and the second sub-frame columns.

[0015] Further, the first ring-shaped pedal and the second ring-shaped pedal each further include a plurality of connecting pedals, the connecting pedals are located between two adjacent sector-shaped pedals and are rotationally connected with at least one sector-shaped pedal.

[0016] From the above, it can be seen that the utility model provides a generator stator overhauling platform, including annular frame and generator cat ladder, the first annular footboard and second annular footboard of different height are equipped on annular frame, and the second hanging ladder of connecting foundation pit bottom surface and second annular footboard, the first hanging ladder of connecting second annular footboard and first annular footboard, so that the generator stator of different height is overhauled by the overhaul personnel, the first annular footboard of annular frame and the foundation pit top surface where the generator stator is located are connected by generator cat ladder, and the overhaul personnel enters or leaves annular frame through generator cat ladder, in addition, the magnetic attraction structure of magnetic attraction connection with the generator upper rack base on generator cat ladder is equipped, realizes the detachable connection of generator cat ladder and the multiple generator upper racks of foundation pit, makes generator cat ladder can be set flexibly, and it is convenient for the overhaul personnel to adjust the position of generator cat ladder according to actual overhauling position, to reduce the walking length of the overhaul personnel in the overhauling process, improves the operation convenience of the overhaul personnel, compared with the generator stator overhauling platform of fixed generator cat ladder position, the overhauling efficiency of the overhaul personnel can be greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, obviously, the drawings in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0018] Figure 1 It is the section structure schematic diagram for the foundation pit where the generator stator is located;

[0019] Figure 2 It is the three-dimensional structure schematic diagram of the generator stator overhauling platform of the utility model embodiment;

[0020] Figure 3 It is the three-dimensional structure schematic diagram of the generator cat ladder of the utility model embodiment;

[0021] Figure 4 It is the three-dimensional structure schematic diagram of the frame stand column of the utility model embodiment;

[0022] Figure 5 It is the three-dimensional structure schematic diagram of the horizontal double connecting rod of the utility model embodiment;

[0023] Figure 6 It is the three-dimensional structure schematic diagram of the inclined connecting rod of the utility model embodiment;

[0024] Figure 7 It is the three-dimensional structure schematic diagram of the sector cover plate of the utility model embodiment.

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

[0026] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the following will be further described in detail in combination with specific embodiments and with reference to the drawings.

[0027] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the utility model should be understood as the usual meaning understood by those skilled in the art to which the present application belongs. The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "connection" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] As described in the background, the existing generator stator maintenance platform has a fixed passage, which affects the stability of the generator stator maintenance platform and the maintenance efficiency of the 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] The following will be described in detail through one or more specific embodiments.

[0031] In some embodiments, a generator stator 01 maintenance platform, as shown in Figure 1 ,Figure 2 and Figure 3 As shown in the drawings, the generator stator 01 is located in the foundation pit 02, and a plurality of generator upper rack bases 03 are uniformly arranged on the side wall of the foundation pit 02 in a ring shape. The generator upper rack bases 03 are arranged higher than the generator stator 01. The maintenance platform comprises:

[0032] A ring-shaped frame 100, the outer diameter of which is matched with the inner diameter of the generator stator 01, and a first ring-shaped footboard 300 and a second ring-shaped footboard 400 are arranged on the ring-shaped frame 100. The first ring-shaped footboard 300 is arranged higher than the second ring-shaped footboard 400. A first hanging ladder 500 is arranged between the first ring-shaped footboard 300 and the second ring-shaped footboard 400. A second hanging ladder 600 is arranged between the second ring-shaped footboard 400 and the bottom surface of the foundation pit 02.

[0033] A generator ladder 200 is arranged to connect the first ring-shaped footboard 300 and the top surface of the foundation pit 02. A magnetic attraction structure 210 is arranged on the generator ladder 200, and the magnetic attraction structure 210 is arranged to be magnetically attracted to the generator upper rack base 03.

[0034] Specifically, the maintenance platform is made of aluminum alloy, which can greatly reduce the weight of the maintenance platform and facilitate hoisting. The first ring-shaped footboard 300 and the second ring-shaped footboard 400 are anti-skid pattern aluminum plates with a thickness of 5 mm, and the bottom surface is provided with a reinforcing rib. The first ring-shaped footboard 300 and the second ring-shaped footboard 400 are each provided with a kick plate with an integrated height of 120 mm.

[0035] The ring-shaped frame 100 is located in the inner ring of the generator stator 01. The outer diameter of the ring-shaped frame 100 is slightly smaller than the inner diameter of the generator stator 01, so that the ring-shaped frame 100 can be placed in the generator stator 01. The outer diameter of the ring-shaped frame 100 cannot be much smaller than the inner diameter of the generator stator 01, so that the maintenance personnel on the first ring-shaped footboard 300 or the second ring-shaped footboard 400 cannot perform maintenance on the generator stator 01, affecting the maintenance work and efficiency of the maintenance personnel on the generator stator 01.

[0036] The generator stator 01 is located in the foundation pit 02, that is, the bottom surface of the foundation pit 02, the annular frame 100 is located in the inner ring of the generator stator 01, the first hanging ladder 500 can be connected with the first annular platform 300 and the second annular platform 400, so that the maintenance personnel can move between the first annular platform 300 and the second annular platform 400 for maintenance, and the second hanging ladder 600 can be connected with the second annular platform 400 and the bottom surface of the foundation pit 02, so that the maintenance personnel can move between the bottom surface of the foundation pit 02 and the second annular platform 400, thereby enabling the maintenance personnel to maintain the generator stator 01 at different heights, and facilitating to improve the practicability of the maintenance platform.

[0037] In addition, the first annular platform 300 and the second annular platform 400 are each provided with a turnover platform, and the first hanging ladder 500 and the second hanging ladder 600 are arranged close to the turnover platform, so that the maintenance personnel can move between the bottom surface of the foundation pit 02, the first annular platform 300 and the second annular platform 400 by turning over the turnover platform.

[0038] Furthermore, the first hanging ladder 500 and the second hanging ladder 600 can be any one of inclined and vertical.

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

[0040] Specifically, one end of the generator ladder 200 is located on the first annular platform 300, and the other end is located on the top surface of the foundation pit 02, the height and horizontal position of the generator upper rack are located between the first annular platform 300 and the top surface of the foundation pit 02, the magnetic attraction structure 210 is arranged on the generator ladder 200 and magnetically attracted to the generator upper rack, realizing detachable connection between the generator ladder 200 and the generator upper rack, which can enhance the stability of the generator ladder 200, and the position of the generator ladder 200 on the first annular platform 300 is not fixed, which is beneficial to improve the flexibility of the generator ladder 200, so that the generator ladder 200 can be moved to be magnetically attracted to different generator upper racks according to the maintenance needs of the maintenance personnel.

[0041] In the embodiment, the first annular step 300 and the second annular step 400 with different heights are arranged on the annular frame 100, the second hanging ladder 600 is arranged to connect the bottom surface of the foundation pit 02 and the second annular step 400, the first hanging ladder 500 is arranged to connect the second annular step 400 and the first annular step 300, so that the maintenance personnel can maintain the generator stator 01 at different heights, the generator ladder 200 is arranged to connect the first annular step 300 of the annular frame 100 and the top surface of the foundation pit 02 where the generator stator 01 is arranged, the maintenance personnel can enter or exit the annular frame 100 through the generator ladder 200, in addition, the magnetic attraction structure 210 is arranged on the generator ladder 200 and magnetically connected with the generator upper rack base 03, so that the generator ladder 200 can be detachably connected with the plurality of generator upper racks of the foundation pit 02, the generator ladder 200 can be flexibly arranged, and the maintenance personnel can adjust the position of the generator ladder 200 according to the actual maintenance position, so as to reduce the walking length of the maintenance personnel in the maintenance process and improve the working convenience of the maintenance personnel. Compared with the generator stator 01 maintenance platform with the fixed position of the generator ladder 200, the maintenance efficiency of the maintenance personnel can be greatly improved.

[0042] In some embodiments, as shown in Figure 3 The generator ladder 200 includes the first layer ladder 220, the first passage 230, the second layer ladder 240 and the second passage 250 connected in sequence, the bottom of the first layer ladder 220 is provided with the first supporting leg 260, the magnetic attraction structure 210 is arranged at the bottom of the end of the first passage 230 away from the first layer ladder 220, the bottom of the second passage 250 is provided with the second supporting leg 270, the first supporting leg 260 is arranged on the first annular step 300, and the second supporting leg 270 is arranged on the top surface of the foundation pit 02.

[0043] Specifically, the first annular step 300 and the top surface of the generator stator 01 have a height difference, the top surface of the generator stator 01 and the generator upper rack base 03 have a height difference, and the generator upper rack base 03 and the top surface of the foundation pit 02 have a height difference, the first layer ladder 220 is arranged to overcome the height difference between the first annular step 300 and the generator upper rack base 03, the first passage 230 is arranged to overcome the horizontal distance between the first annular step 300 and the generator upper rack base 03, the second layer ladder 240 is arranged to overcome the height difference between the generator upper rack base 03 and the top surface of the foundation pit 02, and the second passage 250 is arranged to enhance the connection stability of the second layer 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 first annular pedal 300 and the top surface of the foundation pit 02 to stably support the generator ladder 200, thereby facilitating the stability of the generator ladder 200, and the magnetic attraction structure 210 located between the first support leg 260 and the second support leg 270 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 ladder 220, and the first support leg 260 is used to provide a fulcrum for the first layer ladder 220. The first layer ladder 220 is vertically arranged, which can avoid the instability of the fulcrum caused by the inclined arrangement of the first layer ladder 220, and facilitate the stability of the generator ladder 200. The second support leg 270 is connected to the bottom of the second passage 250 to provide a fulcrum for the second passage 250, thereby enhancing the stability of the generator ladder 200.

[0046] In addition, in order to further enhance the stability of the generator ladder 200, a support frame 290 and a third support leg 280 connected to the middle bottom of the first passage 230 are arranged, and 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, thereby facilitating 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, so the top surface of the generator stator 01 is the top surface of the generator stator 01 rack.

[0047] In some embodiments, as shown in Figure 2 、 Figure 5 and Figure 6 , the annular frame 100 includes a frame column 110, a horizontal double connecting rod 120, and an inclined connecting rod 130. A plurality of frame columns 110 are arranged in a ring shape. The two ends of the inclined connecting rod 130 are connected to two adjacent frame columns 110 through a fixed buckle 140. The two ends of the horizontal double connecting rod 120 are connected to two adjacent frame columns 110 through a clamping buckle 150 to be vertically slidably connected to the frame column 110 and horizontally limit the two adjacent frame columns 110.

[0048] Specifically, a plurality of frame columns 110 arranged in a ring shape constitute the framework of the annular frame 100. The horizontal double connecting rod 120 and the inclined connecting rod 130 are used to fix the frame column 110 and enhance the stability of the annular frame 100. A plurality of frame columns 110 are evenly arranged in a ring shape, which can further enhance the stability of the annular frame 100.

[0049] It should be noted that the second annular pedal 400 and the first annular pedal 300 are connected with the middle part of the frame column 110, the part of the frame column 110 above the first annular pedal 300 is connected with the horizontal double connecting rod 120 and the inclined connecting rod 130, the part of the frame column 110 between the first annular pedal 300 and the second annular pedal 400 is also connected with the horizontal double connecting rod 120 and the inclined connecting rod 130, and the part of the frame column 110 below the second annular pedal 400 is also connected with the horizontal double connecting rod 120 and the inclined connecting rod 130, that is, the horizontal double connecting rod 120 and the inclined connecting rod 130 are provided in the vertical direction of the frame column 110, which not only can enhance the connection stability between the plurality of frame columns 110 arranged in a ring, but also can serve as a guardrail for the first annular pedal 300 and the second annular pedal 400 to protect the maintenance personnel, thereby facilitating to ensure the work safety of the maintenance personnel.

[0050] Specifically, the inclined connecting rod 130 is connected with the frame column 110 through the fixing buckle 140 to fix the frame column 110, and the inclined connecting rod 130 can fixedly connect adjacent frame columns 110, thereby facilitating to improve the stability of the annular frame 100 and further facilitating to improve the stability of the maintenance platform.

[0051] The horizontal double connecting rod 120 is connected with the frame column 110 through the clamping buckle 150 to limit the distance of the frame column 110, the horizontal double connecting rod 120 can slide up and down relative to the frame column 110, and the clamping buckle 150 can be quickly connected with the frame column 110 to quickly position the frame column 110, thereby facilitating to improve the disassembly efficiency of the annular frame 100; in addition, the up-and-down sliding arrangement of the horizontal double connecting rod 120 enables the maintenance personnel to adjust the position of the horizontal double connecting rod 120 according to the maintenance position, so as to avoid the influence of the horizontal double connecting rod 120 on the maintenance, thereby facilitating to improve the flexibility and maintenance efficiency of the maintenance platform.

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

[0053] Specifically, the plurality of frame columns 110 are arranged in a ring, the inner diameter column 111 constitutes the inner diameter of the ring-shaped frame 100, the outer diameter column 112 constitutes the outer diameter of the ring-shaped frame 100, the outer diameter columns 112 of two adjacent frame columns 110 are connected by the outer diameter double connecting rod and the outer diameter inclined connecting rod 130, so that the outer diameter columns 112 of the two adjacent frame columns 110 are stably connected, the inner diameter columns 111 of two adjacent frame columns 110 are connected by the inner diameter double connecting rod and the inner diameter inclined connecting rod 130, so that the inner diameter columns 111 of the two adjacent frame columns 110 are stably connected, thereby realizing stable connection of the plurality of frame columns 110, and the first ring-shaped pedal 300 and the second ring-shaped pedal 400 are located between the inner diameter column 111 and the outer diameter column 112, and are adapted to the width of the frame column 110.

[0054] In the embodiment, the frame column 110, the horizontal double connecting rod 120 and the inclined connecting rod 130 are all divided into inner diameter and outer diameter, so as to realize the positioning of the frame column 110 on the outer diameter and the inner diameter respectively, which is beneficial to improve the stability of the ring-shaped frame 100, and further beneficial to improve the stability of the maintenance platform.

[0055] In some embodiments, as shown in Figure 4 and Figure 7 The frame column 110 further comprises a connecting cross column 113 and a stabilizing column 114, both ends of the connecting cross column 113 are connected with the outer diameter column 112 and the inner diameter column 111 respectively, and the stabilizing column 114 is connected with the middle part 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 ring-shaped frame 100, the arrangement of the stabilizing column 114 increases the support structure of the maintenance platform, which is beneficial to reduce the stress of the inner diameter column 111 and the outer diameter column 112, and further improve the stability of the maintenance platform.

[0057] In some embodiments, as shown in Figure 1 and Figure 4As shown, the bottom surface of the foundation pit 02 where the generator stator 01 is located is provided with a lower oil guide basin cover 04 and a generator air brake 05, both of which are located in the inner ring of the generator stator 01, and the lower oil guide basin cover 04 is arranged close to the inner side wall of the generator stator 01 relative to the generator air 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 air brake 05.

[0058] Specifically, the annular frame 100 is arranged in the inner ring of the generator stator 01. The bottom surface of the foundation pit 02 where the generator stator 01 is located is provided with the lower oil guide basin cover 04 and the generator air brake 05 in the inner ring of the generator stator 01. In order to avoid the influence of the lower oil guide basin cover 04 and the generator air brake 05 on the arrangement and stability of the annular frame 100 in the inner ring of the generator stator 01, the bottom of the annular frame 100 is arranged to be supported by the bottom surface of the foundation pit 02, the lower oil guide basin cover 04 and the generator air brake 05, respectively. The load-bearing capacity of the lower oil guide basin cover 04 and the generator air brake 05 is fully utilized, and the adaptability and practicality of the annular frame 100 are improved.

[0059] It should be noted that the bottom of the inner diameter column 111, the stable column 114 and the outer diameter column 112 is provided with an adjustable height foot cup for supporting the annular frame 100. The arrangement of the foot cup enables the annular frame 100 to adapt to different generators and flexibly adjust the height of the corresponding column according to the height of the lower oil guide basin cover 04 and the generator air brake 05 in different generators, which is beneficial to improve the universality 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 arranged to connect the stable column 114 and the outer diameter column 112 in the area where the stable column 114 is lower than the second annular pedal 400.

[0061] In some embodiments, as shown in Figure 4 As 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 with the annular frame 100 through the first connecting cross column, and the second annular pedal 400 is connected with the annular frame 100 through the second connecting cross column.

[0062] Specifically, the connecting cross column 113 not only has the effect of improving the stability of the frame column 110, but also has the effect of mounting the first annular platform 300 and the second annular platform 400, thereby bearing the pressure of the maintenance personnel on the first annular platform 300 and the second annular platform 400.

[0063] In the embodiment, the connecting cross column 113 includes first and second connecting cross columns with different heights to mount the first and second annular platforms 300 and 400 with different heights. The arrangement of the first and second connecting cross columns not only improves the stability of the frame column 110, but also increases the number of annular platforms of the maintenance platform and improves 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 can also include third and fourth connecting cross columns with different heights to mount third and fourth annular platforms, thereby increasing the number of annular platforms of the maintenance platform to facilitate the maintenance personnel to use the maintenance platform to maintain the generator stator 01.

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

[0066] Specifically, a plurality of sector-shaped platforms 700 are arranged circumferentially to form the first annular platform 300 or the second annular platform 400. The plurality of sector-shaped platforms 700 are arranged circumferentially in the annular frame 100, each sector-shaped platform 700 is located between the adjacent two connecting cross columns 113 and connected with the connecting cross column 113 through the hooks 710, thereby realizing the connection of the sector-shaped platform 700 and the connecting cross column 113, and the circumferential arrangement of the sector-shaped platform 700 through the circumferentially arranged frame column 110.

[0067] It should be noted that the top surface of the sector-shaped platform 700 is provided with anti-skid lines to increase the friction of the maintenance personnel walking on the sector-shaped platform 700 and improve the practicability of the sector-shaped platform 700. The bottom surface of the sector-shaped platform 700 is provided with reinforcing ribs to enhance the strength of the sector-shaped platform 700.

[0068] In the embodiment, the fan-shaped steps 700 are connected with the connecting cross columns 113 through the hooks 710, so that the fan-shaped steps 700 can be quickly installed, and the dismounting efficiency of the fan-shaped steps 700 is improved, and the dismounting efficiency of the inspection platform is improved.

[0069] In some embodiments, as shown in Figure 4 The frame columns 110 include first sub-frame columns, second sub-frame columns and outer diameter support legs 116, the first sub-frame columns and the second sub-frame columns are the same in structure, and the top of the outer diameter support legs 116 is connected with the outer diameter bottom of the first sub-frame columns and the second sub-frame columns.

[0070] Specifically, the first sub-frame columns and the second sub-frame columns each include an outer diameter sub-column, an inner diameter sub-column and a stabilizing sub-column, the bottom of the outer diameter sub-column and the stabilizing sub-column is the same in height, the bottom of the inner diameter sub-column is higher than the bottom of the outer diameter sub-column and the stabilizing sub-column, the inner diameter sub-columns of the first sub-frame columns and the second sub-frame columns jointly form the inner diameter columns 111 of the frame columns 110, the stabilizing sub-columns of the first sub-frame columns and the second sub-frame columns jointly form the stabilizing columns 114 of the frame columns 110, the outer diameter support legs 116 are connected with the bottom of the outer diameter sub-columns of the first sub-frame columns and the second sub-frame columns to form the outer diameter columns 112 of the frame columns 110, so that the bottom of the outer diameter columns 112 is lower than the bottom of the stabilizing columns 114 and the bottom of the inner diameter columns 111. The outer diameter support legs 116 not only extend the outer diameter sub-columns, but also connect the first sub-frame columns and the second sub-frame columns together, so that the stability of the annular frame 100 is improved.

[0071] In addition, the first sub-frame columns 110 and the second sub-frame columns 110 each include a sub-connecting cross column 113, the fan-shaped steps 700 are located between adjacent two frame columns 110, and the two ends of the fan-shaped steps 700 are connected with the sub-connecting cross columns 113 of the frame columns 110 respectively, so that adjacent two fan-shaped steps 700 are not connected with the same connecting cross column 113, the mutual influence is avoided, and the dismounting efficiency and the stability of the annular frame 100 are improved.

[0072] In some embodiments, as shown in Figure 2 and Figure 7 The first annular step 300 and the second annular step 400 each further include a plurality of connecting steps 720, the connecting steps 720 are located between adjacent two fan-shaped steps 700 and are rotationally connected with at least one fan-shaped step 700.

[0073] Specifically, two adjacent fan-shaped steps 700 are connected with a first sub-frame column and a second sub-frame column of the frame column 110 respectively, so that a gap is formed between the two adjacent fan-shaped steps 700, and the connecting step 720 is arranged between the two adjacent fan-shaped steps 700 to shield the gap, thereby facilitating the integrity and aesthetics of the first annular step 300 and the second annular step 400; on this basis, the connecting step 720 is rotationally connected with at least one of the two adjacent fan-shaped steps 700, so that the connecting step 720 can be installed after the fan-shaped steps 700 are installed, thereby facilitating the disassembly and assembly efficiency of the first annular step 300 and the second annular step 400, and further facilitating the disassembly and assembly efficiency of the maintenance platform.

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

[0075] Embodiments of the present application are intended to cover all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A generator stator overhauling platform, the 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 a ring shape, and the generator upper rack bases are higher than the generator stator, characterized in that, The maintenance platform includes: An annular frame, the outer diameter of which is adapted to the inner diameter of the generator stator, is provided with a first annular step and a second annular step. The first annular step is set higher than the second annular step. A first hanging ladder is provided between the first annular step and the second annular step, and a second hanging ladder is provided between the second annular step and the bottom surface of the pit. A generator ladder is used to connect the first annular step and the top surface of the pit. The generator ladder is equipped with a magnetic attraction structure, which is used to magnetically connect with the generator upper frame base.

2. The generator stator maintenance platform according to claim 1, characterized in that, The generator ladder includes a first ladder, a first passageway, a second ladder, and a second passageway connected in sequence. The bottom of the first ladder is provided with a first support foot. The magnetic structure is located at the bottom of the first passageway away from the first ladder. The bottom of the second passageway is provided with a second support foot. The first support foot is used to be located on the first annular step, and the second support foot is used to be located on the top surface of the pit.

3. The generator stator maintenance platform according to claim 1, characterized in that, The annular frame includes frame columns, horizontal double connecting rods, and diagonal connecting rods. Multiple frame columns are arranged circumferentially. The two ends of the diagonal connecting rods are respectively connected to two adjacent frame columns by fixing buckles. The two ends of the horizontal double connecting rods are respectively connected to two adjacent frame columns by snap-fit ​​buckles, so as to slide vertically with the frame columns and limit the horizontal movement of the two adjacent frame columns.

4. The generator stator maintenance platform according to claim 3, characterized in that, The frame columns include inner diameter columns and outer diameter columns. The horizontal double connecting rods include inner diameter double connecting rods and outer diameter double connecting rods. The diagonal connecting rods include inner diameter diagonal connecting rods and outer diameter diagonal connecting rods. Both ends of the inner diameter double connecting rods and the inner diameter diagonal connecting rods are respectively connected to two adjacent inner diameter columns. Both ends of the outer diameter double connecting rods and the outer diameter diagonal connecting rods 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 also includes a connecting horizontal column and a stabilizing column. The two ends of the connecting horizontal column are connected to the outer diameter column and the inner diameter column, respectively, and the stabilizing column is connected to the middle of the connecting horizontal column.

6. The generator stator maintenance platform according to claim 5, characterized in that, The bottom surface of the pit where the generator stator is located is provided with a lower oil guide pan cover and a generator air damper. Both the lower oil guide pan cover and the generator air damper are located on the inner ring of the generator stator. The lower oil guide pan cover is set closer to the inner side wall of the generator stator relative to the generator air damper. The 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 is less than the bottom height of the stabilizing column, which is less than the bottom height of the inner diameter column. The outer diameter column is located on the bottom surface of the pit, the stabilizing column is located on the lower oil guide pan cover, and the inner diameter column is located on the generator air damper.

7. The generator stator maintenance platform according to claim 6, characterized in that, The connecting crossbar includes a first connecting crossbar and a second connecting crossbar. The first connecting crossbar is positioned higher than the second connecting crossbar. The first annular pedal is connected to the annular frame via the first connecting crossbar, and the second annular pedal is connected to the annular frame via the second connecting crossbar.

8. The generator stator maintenance platform according to claim 6, characterized in that, Both the first annular pedal and the second annular pedal include multiple fan-shaped pedals. The fan-shaped pedals are provided with hooks on both sides that are adapted to the connecting crossbars. The fan-shaped pedals are connected to two adjacent connecting crossbars 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 first sub-frame column and the second sub-frame column have the same structure, and the top of the outer diameter support leg is connected to the bottom 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 multiple connecting pedals, which are located between two adjacent sector pedals and are rotatably connected to at least one of the sector pedals.

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