Rotary tool for overhauling thrust pad of generator

Abstract

The utility model provides a rotating tool for generator thrust pad maintenance, which comprises a lower frame, a plurality of connecting components and a plurality of rotating devices, a lifting component of each rotating device is connected with an upper support table in the lower frame through the connecting component, and a clamping block of the lifting component is connected with a limit head of the connecting component and then is connected with the upper support table. Under the condition that the clamping blocks of the multiple lifting assemblies jack the limiting head, the upper supporting table and the lower supporting table are separated, the upper supporting table can be driven by the moving assembly to rotate, in this way, the thrust bearing rotates, the thrust pad which is not overhauled in the thrust bearing moves into the overhauling opening, and a worker can take out the thrust pad through the overhauling opening to be overhauled or replaced. Therefore, high-pressure oil does not need to be pumped into the bottom of the rotary bearing platform, so that no foreign matter enters a gap between the upper supporting platform and the lower supporting platform of the thrust bearing supporting platform, the thrust bearing supporting platform is not easy to damage, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to generator maintenance technical field especially relates to a kind of rotary tools for generator thrust pad overhauling. BACKGROUND

[0002] When the pumped storage unit is overhauled, the thrust pad is overhauled or replaced through the overhaul opening of the lower rack without hoisting the rotor of the unit; Because the thrust bearing support table in the lower rack is divided into upper and lower parts, the rotor is lifted and the thrust mirror plate is lifted when the thrust pad is overhauled, and high-pressure oil is injected into the bottom of the rotating bearing table to drive the rotating table to rotate, so that the thrust bearing support table can be rotated to overhaul the multiple thrust pads through the overhaul opening. However, due to the small gap between the upper and lower parts of the thrust bearing support table, the purity of the high-pressure oil needs to be high, and any foreign matter cannot enter the gap of the support table. If impurities appear between the upper and lower support tables of the thrust bearing, it will be difficult to rotate under the original small gap condition, and even the upper and lower support tables will be damaged. The protection requirement is high during operation. SUMMARY

[0003] Therefore, the utility model provides a kind of rotary tools for generator thrust pad overhauling to solve the technical problems in the background art.

[0004] To achieve the above purpose, the utility model provides a kind of rotary tools for generator thrust pad overhauling, which comprises:

[0005] A lower rack is provided with a thrust bearing support table and a thrust bearing arranged on the thrust bearing support table, and an overhaul opening is arranged on the side wall of the lower rack. The thrust bearing support table comprises a lower support table and an upper support table, and the upper support table is arranged on the lower support table. The upper support table is provided with a mounting hole.

[0006] A plurality of connecting assemblies are provided, each of which comprises a connecting rod and a limiting head connected to each other. The connecting rod is inserted into the mounting hole on the upper support table.

[0007] A plurality of rotating devices are provided, each of which comprises a lifting assembly and a moving assembly arranged below the lifting assembly. The top of the lifting assembly is provided with a clamping block, and the clamping block is connected to the limiting head. When the clamping block lifts the limiting head, the upper support table is separated from the lower support table. The moving assembly drives the upper support table to rotate, so that the un-overhauled thrust pad in the thrust bearing corresponds to the overhaul opening.

[0008] Optionally, the overhaul opening is provided with two, and the two overhaul openings are symmetrically arranged on the side wall of the lower rack. The overhaul opening is directed to the thrust pad of the thrust bearing.

[0009] Optionally, the lower support platform is fixed in the lower frame, the upper support platform is overlapped on the lower support platform, and the thrust bearing is fixed on the upper support platform.

[0010] Optionally, a plurality of the mounting holes are arranged around the sidewall of the upper support platform, and a plurality of the connecting assemblies and a plurality of the rotating devices are in one-to-one correspondence, each rotating device is connected with the mounting hole of the upper support platform through the connecting assembly corresponding thereto.

[0011] Optionally, the plurality of connecting assemblies and the plurality of rotating devices are arranged uniformly on the periphery of the upper support platform.

[0012] Optionally, the limiting head comprises a limiting block and a connecting seat arranged on the top of the limiting block, the connecting seat is sleeved on the connecting rod, and the connecting seat rotates relative to the connecting rod.

[0013] Optionally, two locking bolts are arranged on the connecting rod, and the connecting seat is located between the two locking bolts.

[0014] Optionally, a limiting groove is arranged at the bottom of the limiting block, and the clamping block is clamped in the limiting groove.

[0015] Optionally, the lifting assembly comprises a jack, and the clamping block is fixed at the top of the top rod of the jack.

[0016] Optionally, the moving assembly comprises a rotating small tank, and the jack is fixed at the top of the rotating small tank.

[0017] As can be seen from the above, the rotating tool for generator thrust pad maintenance provided by the utility model, comprising a lower frame, a plurality of connecting assemblies and a plurality of rotating devices, wherein the lifting assembly of each rotating device is connected with the upper support platform in the lower frame through the connecting assembly, after the clamping block of the lifting assembly is connected with the limiting head of the connecting assembly, under the condition that the clamping blocks of the plurality of lifting assemblies lift the limiting head, the upper support platform is separated from the lower support platform, the upper support platform can be rotated by the moving assembly, so that the thrust bearing is rotated, the un-maintained thrust pad in the thrust bearing is moved into the maintenance opening, and the staff can take out the thrust pad through the maintenance opening for maintenance or replacement. In this way, it is not necessary to punch high-pressure oil into the bottom of the rotating bearing platform, so that the gap between the upper support platform and the lower support platform of the thrust bearing support platform is ensured to be free of any foreign matter, the thrust bearing support platform is ensured not to be easily damaged, and the service life of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to make the technical scheme of the utility model or the related technical scheme clearer, the following will briefly introduce the drawings needed to be used in the embodiment or the related technical description. Obviously, the drawings in the following description are only the embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0019] Figure 1 It is a rotating tool structure schematic view for generator thrust pad overhauling for the embodiment of the utility model;

[0020] Figure 2 It is a rotating tool structure schematic view for generator thrust pad overhauling for the embodiment of the utility model; Figure 1 It is an enlarged schematic view of A part in the embodiment of the utility model;

[0021] Figure 3 It is a thrust bearing and thrust bearing support platform connecting structure schematic view for the embodiment of the utility model;

[0022] Figure 4 It is a rotating device structure schematic view for the embodiment of the utility model.

[0023] Reference signs:

[0024] 1, lower rack; 11, overhauling port; 2, thrust bearing support platform; 3, thrust bearing; 4, rotating device; 5, connecting assembly; 21, lower support platform; 22, upper support platform; 31, thrust pad; 32, rotor; 41, moving assembly; 42, lifting assembly; 43, clamping block; 421, top rod; 51, connecting rod; 52, limiting head; 521, connecting seat; 522, limiting block; 523, limiting groove; 53, locking bolt; 221, mounting hole. Specific implementation

[0025] In order to make the technical scheme of the utility model or the related technical scheme clearer, the following will briefly introduce the drawings needed to be used in the embodiment or the related technical description. Obviously, the drawings in the following description are only the embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0026] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the embodiments of the present application should be understood as the common meanings thereof by those skilled in the art to which the embodiments of the present application belong. The terms "first", "second", and similar terms used in the embodiments of the present application do not represent any order, number, or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, without excluding other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships can also change accordingly.

[0027] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] As shown in Figure 1 and Figure 2 The present application provides a rotating tool for generator thrust pad maintenance, comprising:

[0029] A lower rack 1 is internally provided with a thrust bearing support table 2 and a thrust bearing 3 arranged on the thrust bearing support table 2, a maintenance opening 11 is arranged on the side wall of the lower rack 1, the thrust bearing support table 2 comprises a lower support table 21 and an upper support table 22, the upper support table 22 is arranged on the lower support table 21, and a mounting hole 221 is arranged on the upper support table 22;

[0030] A plurality of connecting assemblies 5, each of which comprises a connecting rod 51 and a limiting head 52 connected to each other, and the connecting rod 51 is inserted into the mounting hole 221 on the upper support table 22;

[0031] A plurality of rotating devices 4, each of which comprises a lifting assembly 42 and a moving assembly 41 arranged below the lifting assembly 42, a clamping block 43 is arranged on the top of the lifting assembly 42, the clamping block 43 is clamped with the limiting head 52, in the case that the limiting head 52 is lifted by the clamping block 43, the upper support table 22 is separated from the lower support table 21, the moving assembly 41 drives the upper support table 22 to rotate, so that the un-maintained thrust pad 31 in the thrust bearing 3 corresponds to the maintenance opening 11.

[0032] Specifically, the example plurality of rotating devices 4 includes two, and the lifting assembly 42 of each rotating device 4 is connected with the upper support table 22 inside the lower rack 1 through the connecting assembly 5. After the clamping block 43 of the lifting assembly 42 is connected with the limiting head 52 of the connecting assembly 5, the upper support table 22 is separated from the lower support table 21 in the case that the clamping block 43 of the lifting assembly 42 of the two rotating devices 4 lifts the limiting head 52, and the upper support table 22 can be rotated under the driving of the moving assembly 41. In this way, the thrust bearing 3 is rotated, and the un-repaired thrust pad 31 in the thrust bearing 3 is moved into the repair opening 11, and the worker can take out the thrust pad 31 through the repair opening 11 for repair or replacement. In this way, it is not necessary to punch high-pressure oil into the bottom of the rotating bearing table, so as to ensure that there is no foreign matter entering the gap between the upper support table 22 and the lower support table 21 of the thrust bearing support table 2, and the thrust bearing support table 2 is not easy to be damaged, and the service life of the equipment is improved.

[0033] In some embodiments, as shown in Figure 1 The repair opening 11 is provided with two, and the two repair openings 11 are symmetrically arranged on the side wall of the lower rack 1, and the repair opening 11 faces the thrust pad 31 of the thrust bearing 3.

[0034] Specifically, the lower rack 1 is cylindrical, and the two repair openings 11 are symmetrically arranged on the oil groove wall of the lower rack 1 at 180°. In this way, the worker can repair or replace the thrust pad 31 of the thrust bearing 3 through the two repair openings 11. The height of the repair opening 11 is higher than the installation height of the thrust pad 31, and the width of the repair opening 11 is greater than the width of the thrust pad 31, so as to facilitate the taking out of the thrust pad 31 in the repair opening 11. When the thrust pad 31 is taken out, a transmission roller can be used for taking out, and the transmission structure of the transmission roller adopts a transmission belt operation structure.

[0035] In some embodiments, as shown in Figure 3 The lower support table 21 is fixed in the lower rack 1, the upper support table 22 is overlapped on the lower support table 21, and the thrust bearing 3 is fixed on the upper support table 22.

[0036] Specifically, the lower support table 21 of the thrust bearing support table 2 is fixed in the lower rack 1, and the upper support table 22 is overlapped on the lower support table 21. For example, the top of the lower support table 21 is provided with a groove, and the bottom of the upper support table 22 is provided with a boss corresponding to the groove. The boss is located in the groove. When the lifting assembly 42 of the plurality of rotating devices 4 lifts the upper support table 22, the upper support table 22 is separated from the lower support table 21. At this time, in order to avoid the gap between the upper support table 22 and the lower support table 21 from entering impurities, a dustproof cloth can be attached around the upper support table 22. The lifting height of the upper support table 22 is less than the height of the dustproof cloth. In this way, the dustproof effect can be achieved. After the upper support table 22 is separated from the lower support table 21, the moving assembly 41 of the rotating device 4 drives the upper support table 22 to rotate, and then drives the thrust bearing 3 to rotate, so that the thrust pad 31 on the thrust bearing 3 corresponds to the access hole 11. The thrust pad 31 can be maintained through the access hole 11.

[0037] In the embodiment, the lifting assembly 42 adopts a jack, and the moving assembly 41 adopts a rotating small tank. The rotating small tank can be an electrically operated small tank or a conventional small tank. When the conventional small tank is used, a worker needs to push the rotating assembly to move. In the utility model, the specific type of the rotating small tank is not limited.

[0038] In some embodiments, as shown in Figure 3 The mounting hole 221 is provided around the side wall of the upper support table 22. The plurality of connecting assemblies 5 and the plurality of rotating devices 4 are arranged in one-to-one correspondence. Each rotating device 4 is connected to the mounting hole 221 of the upper support table 22 through the corresponding connecting assembly 5.

[0039] In the embodiment, the plurality of connecting assemblies 5 and the plurality of rotating devices 4 are uniformly arranged around the periphery of the upper support table 22.

[0040] Specifically, for example, a plurality of mounting holes 221 are arranged in an array around the side wall of the upper support table 22. In this way, the plurality of connecting assemblies 5 and the plurality of rotating devices 4 can be uniformly installed around the upper support table 22, and the upper support table 22 can be stably lifted. In the embodiment, the plurality of connecting assemblies 5 includes three, and the plurality of rotating devices 4 also includes three. Each rotating device 4 is connected to the mounting hole 221 of the upper support table 22 through a connecting assembly 5. One end of the connecting rod 51 of the connecting assembly 5 is inserted into the mounting hole 221. The mounting hole 221 can be a threaded hole or a smooth hole. When the mounting hole 221 is a threaded hole, one end of the connecting rod 51 is threadedly connected to the mounting hole 221, and the other end is provided with a limiting head 52 connected to the rotating device 4. The connecting rod 51 and the mounting hole 221 are threadedly connected, which can ensure the stability of the installation of the connecting rod 51.

[0041] In some embodiments, as shown inFigure 2 As shown, the limiting head 52 comprises a limiting block 522 and a connecting seat 521 arranged on the top of the limiting block 522, the connecting seat 521 is sleeved on the connecting rod 51, and the connecting seat 521 rotates relative to the connecting rod 51.

[0042] Specifically, the limiting head 52 is used for clamping with the clamping block 43 of the lifting assembly 42, the limiting head 52 comprises a limiting block 522, and a connecting seat 521 is arranged on the top of the limiting block 522, the connecting seat 521 is sleeved on the connecting rod 51, wherein the connecting rod 51 can be a screw rod, the connecting seat 521 can be threadedly connected with the screw rod, the connecting seat 521 can rotate relative to the connecting rod 51, so that the position and the angle of the limiting block 522 can be adjusted, and when the limiting block 522 is clamped with the clamping block 43, the position of the limiting block can be adjusted, so that the clamping block 43 can be accurately clamped with the limiting block 522.

[0043] In some embodiments, as shown in the drawings, Figure 2 As shown, the connecting rod 51 is provided with two locking bolts 53, and the connecting seat 521 is located between the two locking bolts 53.

[0044] Specifically, based on the above-mentioned embodiments, the connecting rod 51 is a threaded rod, and one locking bolt 53 is arranged at each of the front and rear ends of the connecting seat 521, so that the two locking bolts 53 lock the connecting seat 521, and after the limiting block 522 is successfully clamped with the clamping block 43, the connecting seat 521 is locked by the locking bolt 53 to prevent the limiting block 522 from rotating, thereby ensuring that the rotating device 4 stably rotates the upper support table 22.

[0045] In some embodiments, as shown in the drawings, Figure 2 As shown, the bottom of the limiting block 522 is provided with a limiting groove 523, and the clamping block 43 is clamped in the limiting groove 523.

[0046] Specifically, the bottom of the limiting block 522 is provided with a rectangular groove, and the clamping block 43 is a rectangular block, the clamping block 43 is fixed on the top of the jack, when the jack jacks up, the clamping block 43 is clamped into the rectangular groove of the limiting block 522, thereby realizing the clamping of the clamping block 43 and the limiting block 522, after the clamping is completed, the limiting block 522 is fixed, and the jack continues to jack up to jack up and rotate the upper support table 22, so that the thrust bearing 3 rotates, and then the thrust pad 31 of the thrust bearing 3 passes through the inspection opening 11, and the thrust pad 31 is inspected through the inspection opening 11.

[0047] In some embodiments, as shown in the drawings, Figure 4 As shown, the lifting assembly 42 comprises a jack, and the clamping block 43 is fixed on the top of the top rod 421 of the jack.

[0048] Specifically, in the embodiment, the lifting assembly 42 adopts a jack, and can also adopt a lifting cylinder, and the jack is the most optimal choice, the jack has a one-way valve inside, the hydraulic oil circuit is locked by the one-way valve after jacking, the hydraulic oil only enters but does not exit after the one-way valve is locked, and the hydraulic oil can only be lowered after being released, so that one reciprocating motion is completed, and the upper support table 22 is more stable after jacking.

[0049] In some embodiments, as shown in Figure 4 The moving assembly 41 comprises a rotating small tank, and the jack is fixed on the top of the rotating small tank.

[0050] Specifically, in the embodiment, the rotating small tank has strong bearing capacity, and the moving assembly 41 adopts the rotating small tank due to the limited space in the lower rack 1, so that the jack can be stably moved, and the stable rotation of the upper support table 22 is realized.

[0051] The specific implementation process of the utility model is as follows:

[0052] At least two rotating devices 4 are placed into the lower rack 1 through two symmetrical maintenance openings 11 on the lower rack 1, then the connecting rod 51 of the corresponding connecting assembly 5 is inserted into the mounting hole 221 on the upper support table 22, then the limiting head 52 at the other end of the connecting rod 51 is clamped with the clamping block 43 on the rotating device 4, in the clamping process, the lifting assembly 42 drives the limiting head 52 to move upwards, when the clamping block 43 is about to be clamped, if the positions do not correspond, the rotating device 4 or the limiting head 52 can be moved, so that the limiting head 52 corresponds to the clamping block 43, then the lifting assembly 42 continues to lift, until the upper support table 22 is supported, so that the upper support table 22 is separated from the lower support table 21, then the moving assembly 41 is driven to drive the upper support table 22 to rotate relative to the lower support table 21, and then the thrust pad 31 of the thrust bearing 3 on the upper support table 22 passes through the maintenance opening 11 in turn, and the thrust pad 31 can be taken out through the maintenance opening 11, and the thrust pad 31 is maintained.

[0053] It should be noted that some embodiments of the utility model have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order and still achieve desirable results. Additionally, the process depicted in the figures does not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some implementations, multitasking and parallel processing can be advantageous or necessary.

[0054] While the present application has been described in connection with specific embodiments thereof, it will be understood that many modifications, substitutions, and changes will be apparent to those of ordinary skill in the art from the foregoing description. For example, other memory architectures can use the embodiments discussed.

[0055] Embodiments of the present application are intended to cover all such alternatives, modifications, and variations as falling within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications and variations should be included within the scope of the present application.

Claims

1. A rotary tool for generator thrust pad overhauls, characterized by, The utility model relates to a kind of lower frame (1), which is provided with thrust bearing support platform (2) and thrust bearing (3) arranged on the thrust bearing support platform (2) in it, the side wall of the lower frame (1) is provided with access hole (11), the thrust bearing support platform (2) includes lower support platform (21) and upper support platform (22), the upper support platform (22) is arranged on the lower support platform (21), and the upper support platform (22) is provided with mounting hole (221);A plurality of connecting assemblies (5), each connecting assembly (5) includes connecting rod (51) and limit head (52) connected, the connecting rod (51) is inserted with the mounting hole (221) on the upper support platform (22);A plurality of rotating devices (4), each rotating device (4) includes lifting assembly (42) and moving assembly (41) arranged below the lifting assembly (42), the top of the lifting assembly (42) is provided with clamping block (43), the clamping block (43) is connected with the limit head (52), in the case that the limit head (52) is lifted by the clamping block (43), the upper support platform (22) is separated from the lower support platform (21), the moving assembly drives the upper support platform (22) to rotate, so that the thrust pad (31) not repaired in the thrust bearing (3) corresponds with the access hole (11). The access hole (11) is provided with two, and the two access holes (11) are symmetrically arranged on the side wall of the lower frame (1), and the access hole (11) is directed to the thrust pad (31) of the thrust bearing (3). The lower support platform (21) is fixed in the lower frame (1), the upper support platform (22) is overlapped on the lower support platform (21), and the thrust bearing (3) is fixed on the upper support platform (22). The mounting hole (221) is provided with a plurality of around the side wall of the upper support platform (22), and a plurality of the connecting assemblies (5) and a plurality of the rotating devices (4) correspond one by one, each rotating device (4) is connected with the mounting hole (221) of the upper support platform (22) through the connecting assembly (5) corresponding thereto.

2. A rotary tool for generator thrust washer servicing according to claim 1, wherein, A plurality of the connecting assemblies (5) and a plurality of the rotating devices (4) are uniformly distributed in the periphery of the upper support platform (22).

3. A rotary tool for generator thrust washer service according to claim 1, wherein, The limit head (52) includes limit block (522) and connecting seat (521) arranged on the top of the limit block (522), the connecting seat (521) is sleeved on the connecting rod (51), and the connecting seat (521) rotates relative to the connecting rod (51).

4. A rotary tool for generator thrust washer service according to claim 1, wherein, The connecting rod (51) is provided with two locking bolts (53), and the connecting seat (521) is located between the two locking bolts (53).

5. A rotary tool for generator thrust washer servicing according to claim 4, wherein, The limit block (522) is provided with a limit groove (523) in the bottom, and the clamping block (43) is clamped in the limit groove (523).

6. A rotary tool for generator thrust washer service according to claim 1, wherein, The lifting assembly (42) includes a jack, and the clamping block (43) is fixed on the top of the jack.

7. A rotary tool for generator thrust washer servicing according to claim 6, wherein, The moving assembly (41) includes a rotating small tank, and the jack is fixed on the top of the rotating small tank.

8. A rotary tool for generator thrust washer service according to claim 6, wherein, ​ 9. A rotary tool for generator thrust washer service according to claim 1, wherein, ​ 10. A rotary tool for generator thrust washer service according to claim 1, wherein, ​

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