A device and method for dismounting a thrust bearing support tile of an axial flow hydroelectric generator set

Abstract

The application discloses a kind of axial flow water turbine generator set thrust bearing supporting tile dismounting device and method thereof, including jacking mechanism, support steel plate and transfer mechanism;Transfer mechanism includes two cross beams, two ends of two cross beams are respectively equipped with strut, two cross beams and two struts are enclosed to form the frame for accommodating supporting tile, two struts are installed with rotating sleeve between two cross beams, rotating sleeve is fixedly installed with hook, and the hook of two sides is oppositely arranged;Two support steel plates are respectively arranged in the lower side of two cross beams, and cross beam can slide on support steel plate;The lower side of each support steel plate is equipped with jacking mechanism.By the application, axial flow water turbine generator set can be simply and conveniently disassembled and overhauled when it is not A-level maintenance, and supporting tile is not easy to be scraped or collided with other components when supporting tile is disassembled.

Description

Technical Field

[0001] This invention relates to the field of hydro-generator maintenance technology, specifically to a device and method for disassembling the thrust bearing pad of an axial-flow hydro-generator. Background Technology

[0002] The thrust bearing pads of an axial-flow propeller-type hydro-generator are supported on an elastic oil tank in a circular arrangement. Each pad weighs approximately 300 kg, and its bottom center is in force contact with the elastic oil tank. The stop design between the pad and the thrust support restricts its radial movement, making it difficult to disassemble and remove the pads for inspection within the confined space of the thrust oil tank during Class B maintenance. Currently, inspection can only be carried out by removing the pads one by one after the generator rotor and thrust head mirror plate are completely removed during Class A maintenance. However, Class B maintenance includes several inspection items for the thrust bearing pads. Due to the limitation of not lifting the rotor during Class B maintenance, the available space for pad inspection is very limited, leading to difficulties in implementing some standard maintenance items and low maintenance efficiency. To address this, we propose a device and method for disassembling thrust bearing pads for axial-flow propeller-type hydro-generators, which solves the problem of pad disassembly and maintenance during non-Class A maintenance of axial-flow propeller-type hydro-generators.

[0003] A search revealed Chinese patent document CN115488819B, published on April 16, 2024, which discloses a spring-supported thrust bearing thrust pad assembly and disassembly device and method. The device includes an internal track, a central track, an external track, and a transfer trolley for supporting the thrust pad's movement on each track. The internal track includes a positioning track on one side and a limiting track on the other side. The positioning track and the limiting track are respectively connected to one end of the central track, and the other end of the central track is connected to the external track. The transfer trolley includes a left fixed wheel frame and a right fixed wheel frame. The left and right support wheels are independently mounted on the sides of the thrust bearing when in use, allowing for quick, convenient, and safe assembly and disassembly. However, its drawbacks are: firstly, the process of lifting the thrust bearing is complex, and the bearing is prone to rotation and tilting when being lifted by the bearing pin, leading to collisions; secondly, the independent assembly and disassembly of the various components of the transfer trolley, involving bolt installation and removal, makes the installation of the transfer trolley and the thrust bearing very inconvenient in confined spaces, resulting in low operational efficiency.

[0004] In addition, Chinese patent document CN223013054U, published on June 24, 2025, discloses a device for disassembling and assembling a thrust bearing pad of a semi-umbrella-type hydro turbine generator. The device includes a base, several support columns installed at the bottom of the base, a guide rail mounting frame installed at the top, a guide rail installed inside the guide rail mounting frame, a sliding guide rail seat installed on the guide rail, a lead screw and a hydraulic jack respectively installed at the top two ends of the sliding guide rail seat, a fixing block fitted on the outer wall of the lead screw, a U-shaped clamping groove fixedly connected to one side of the fixing block, a connecting rod clamped on the U-shaped clamping groove, a pad connecting seat fixedly connected to the end of the connecting rod near the hydraulic jack, and a pad connecting seat fixedly connected to the pad at the end away from the lead screw by a locking bolt. Its advantages are: it allows for inspection of the thrust bearing pads without suspending the mirror plate, and also avoids the problem of damage to the pad surface and mirror plate during operation; however, its disadvantages are: the pads are only suspended from one end of the pads through the pad connecting seat, and because the pads have a certain length and are relatively heavy, the stability is poor in actual use, the pads are very easy to tilt, and due to the narrow space, the pads are very easy to scratch or collide with the mirror plate. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device and method for disassembling the thrust bearing pad of an axial-flow turbine generator set, so as to solve the problem of pad disassembly and maintenance during non-A-level maintenance of axial-flow propeller turbine generator sets, and to provide good support stability and prevent the pad from scratching or colliding with other components.

[0006] The objective of this invention is achieved as follows: In a first aspect, the present invention proposes a thrust bearing bearing pad disassembly device for an axial-flow hydro-generator set, comprising a lifting mechanism, supporting steel plates, and a transfer mechanism; the transfer mechanism includes two crossbeams, each with a strut mounted at both ends, the two crossbeams and the two struts forming a frame for accommodating the bearing pad; a rotating sleeve is mounted on each strut between the two crossbeams, and a hook is fixedly mounted on the rotating sleeve, with the hook holding parts on both sides arranged opposite each other; two supporting steel plates are respectively disposed on the underside of the two crossbeams, and the crossbeams can slide on the supporting steel plates; a lifting mechanism is mounted on the underside of each supporting steel plate. The hook includes at least two longitudinal rods fixed to the outer wall of the rotating sleeve, and the holding part is fixed to the end of the longitudinal rod; a connecting rod is fixed between adjacent longitudinal rods.

[0007] A needle roller slider is installed and fixed on the lower side of the crossbeam. The needle roller slider is used to place the crossbeam onto the support steel plate.

[0008] A positioning pin is fixedly installed on the support steel plate. The upper end of the positioning pin is flush with the top surface of the support steel plate or fixed to the bottom of the support steel plate. The lower end of the positioning pin extends to the lower side of the support steel plate. The lifting mechanism consists of two jacks. The top of the jacks is provided with a guide hole. The lower end of the positioning pin is movably inserted into the guide hole of the lifting mechanism.

[0009] It also includes a leveling component, which is installed on the underside of the lifting mechanism.

[0010] The leveling component has a U-shaped groove structure. One end of the leveling component is supported on the thrust bracket between the jack and the spacer, and the other end is supported on the spacer. The top of the leveling component is flush with the top of the spacer's locking bolt.

[0011] The support rod and the rotating sleeve are provided with a number of corresponding limiting holes. When the first limiting pin is inserted into the limiting hole on the rotating sleeve and the support rod, the hook is limited so that the hanging part of the hook on both sides is located on the underside of the support plate, or the hook is in a horizontal state.

[0012] A limiting plate is installed on the rotating sleeve that is placed on one end of the inner side of the toe. The limiting plate is perpendicular to the hook. When the hook is in the horizontal position, the limiting plate is in the vertical position. When the toe moves, the limiting plate is used to insert into the groove on the top surface of the toe.

[0013] Sleeves are fixed at both ends of the two crossbeams, and the two ends of the struts are inserted into the sleeves on both sides. The sleeves and struts are provided with corresponding limiting holes. When the second limiting pin is inserted into the limiting holes on the sleeves and struts, the struts are limited. Secondly, this invention proposes a method for disassembling the thrust bearing support pad of an axial-flow turbine generator set, employing the aforementioned disassembly device for the thrust bearing support pad of an axial-flow turbine generator set. The disassembly method includes the following steps: S1. Install lifting mechanisms on both sides of the toe, with a certain distance between the lifting mechanisms and the toe; S2. Install supporting steel plates on the lifting mechanisms on both sides respectively; S3. Rotate the hooks on both sides of the transfer mechanism to make the hooks on both sides horizontal, and then move the transfer mechanism from the top of the toe to the top of the toe. S4. Lower the transfer mechanism to accommodate the towa inside the transfer mechanism, with the crossbeam supported on the support steel plate; S5. Then rotate the hooks on both sides so that the holding parts of the hooks on both sides are locked in the bottom of the toe; S6. Use the lifting mechanism to lift the bearing and the transfer mechanism so that the bearing is removed from the thrust support. S7. Pull the transfer mechanism outward and move it onto the docking translation trolley. Thirdly, the present invention also proposes a method for disassembling the thrust bearing support pad of an axial-flow turbine generator set, which employs the aforementioned disassembly device for the thrust bearing support pad of an axial-flow turbine generator set. The disassembly method includes the following steps: S1. Install lifting mechanisms on both sides of the toe, with a certain distance between the lifting mechanisms and the toe; S2. Install supporting steel plates on the lifting mechanisms on both sides respectively; S3. Install the two sets of rotating sleeves and hook assemblies to the front and rear ends of the toe respectively, and make the holding parts of the hooks on both sides lock into the bottom of the toe; S4. Insert the support rod into the rotating sleeve, and then install the two crossbeams onto the support rod from both sides of the support plate through the sleeve. S5. Use the lifting mechanism to lift the bearing and the transfer mechanism so that the bearing is removed from the thrust support. S6. Pull the transfer mechanism outward and move it onto the docking translation trolley.

[0014] Compared with the prior art, the above-conceptual technical solution conceived in this application has the following beneficial effects: 1. When disassembling the bearing using the device of the present invention, first install a lifting mechanism on both sides of the bearing, then install a support steel plate on the lifting mechanism, then rotate the hook to a horizontal position, and then fit the transfer mechanism onto the bearing. The transfer mechanism is supported on the support steel plate. Then rotate the hooks on the two support rods so that the holding parts of the hooks on both sides extend into the bottom of the bearing. Then, lift the support steel plate through the lifting mechanism, thereby simultaneously lifting the bearing and the transfer mechanism. Afterwards, pull the transfer mechanism outwards to remove the bearing. Through the above scheme, the bearing of the axial flow propeller turbine generator set can be easily and conveniently disassembled and repaired during non-A-level maintenance. Moreover, the bearing support has good stability during disassembly, and the bearing is not prone to scratching or colliding with other components.

[0015] 2. The present invention fixes a positioning pin on the support steel plate, and the lower end of the positioning pin is movably inserted into the guide hole of the lifting mechanism, so that the support steel plate will not move with the transfer mechanism when the transfer mechanism is pulled outward.

[0016] 3. This invention limits the position of the rotating sleeve by inserting a first limiting pin into the support rod and the rotating sleeve, preventing the rotating sleeve from rotating. The hook is in a lateral limiting state, making it easy for the operator to hold. When the inner end is inconvenient to hold, it is supported by a limiting plate. The hook is in a longitudinal limiting state, thereby limiting the hanging parts of the hooks on both sides to the underside of the support plate, preventing the support plate from falling and improving the stability and safety when removing the support plate.

[0017] 4. When the device of the present invention moves the transfer mechanism to the right, the limiting plate is inserted into the groove on the top surface of the support plate. Its function is at least the following two points: First, the limiting plate supports this end of the transfer mechanism, making it easier to push the device onto the support plate; Second, the limiting plate guides this end of the transfer mechanism, so that the transfer mechanism can be moved into place without observing its position through the gap.

[0018] 5. In this invention, sleeves are fixed at both ends of the two crossbeams, and the two ends of the support rod are inserted into the sleeves on both sides. Corresponding limiting holes are provided on the sleeves and the support rod. When the second limiting pin is inserted into the limiting holes on the sleeves and the support rod, the support rod is limited. With the above structure, the transfer mechanism can be connected to the support plate from both sides, which is suitable for working conditions where the gap is too small and the transfer mechanism cannot move from the top of the support plate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the device for disassembling the device according to the present invention, which houses the topper.

[0021] Figure 2 This is a schematic diagram of the disassembly device of the present invention.

[0022] Figure 3 This is a schematic diagram of the bottom structure of the disassembly device of the present invention.

[0023] Figure 4 This diagram illustrates the installation of jacks on the spacer block clamping bolts and leveling components when disassembling the bearing using this invention.

[0024] Figure 5 This is a schematic diagram showing the installation of a support steel plate on the jack when disassembling the jack using the present invention.

[0025] Figure 6 This is a schematic diagram illustrating the process of fitting the frame onto the toe when disassembling the toe using this invention.

[0026] Figure 7 This is a schematic diagram illustrating how the toe is removed using a transfer mechanism when disassembling the toe using the present invention.

[0027] In the picture: 1. Towa 1, spacer block and bolt 2; Lifting mechanism 10, guide hole 11; Support steel plate 20, locating pin 21; The transfer mechanism 30, crossbeam 31, sleeve 311, support rod 32, second limit pin 321, rotating sleeve 33, first limit pin 331, limit plate 332, hook 34, longitudinal rod 341, hanging part 342, connecting rod 343, and needle roller slider 35. Leveling component 40. Detailed Implementation

[0028] To more clearly illustrate the purpose, technical solution, and beneficial effects of this application, a further detailed description of this application is provided below in conjunction with illustrations and specific embodiments. It should be specifically noted that the specific embodiments described below are only for illustrating the technical content of this application and do not constitute a limitation on the scope of protection of this application.

[0029] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection via an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Example 1: Combination Figures 1-4A thrust bearing bearing pad removal device for an axial-flow hydro turbine generator set includes a lifting mechanism 10, supporting steel plates 20, and a transfer mechanism 30. The transfer mechanism 30 includes two crossbeams 31, with support rods 32 installed at both ends of the two crossbeams 31. The two crossbeams 31 and the two support rods 32 together form a frame for accommodating the bearing pad 1. Rotating sleeves 33 are installed on the two support rods 32 between the two crossbeams 31. Hooks 34 are fixedly installed on the rotating sleeves 33, and the holding parts 342 of the hooks 34 on both sides are arranged opposite to each other. Two supporting steel plates 20 are respectively arranged on the lower side of the two crossbeams 31, and the crossbeams 31 can slide on the supporting steel plates 20. The lifting mechanism 10 is installed on the lower side of each supporting steel plate 20. The lifting mechanism 10 is used to lift the supporting steel plate 20. Since the transfer mechanism 30 is movably supported on the supporting steel plate 20, the transfer mechanism 30 is lifted to a certain height, thereby lifting the support plate 1. The lifting mechanism 10 uses two jacks, and the supporting steel plate 20 is used to connect the two jacks on each side and to provide a track for the translation of the transfer mechanism 30. The transfer mechanism 30 is used to fit onto the support plate 1 and hooks the bottom of the support plate 1 through the hook 34, thereby realizing the lifting and transfer of the support plate 1.

[0032] When disassembling the bearing 1, first install the lifting mechanism 10 on both sides of the bearing 1, then install the support steel plate 20 on the lifting mechanism 10. Next, rotate the hook 34 to a horizontal position, and then fit the transfer mechanism 30 onto the bearing 1. The transfer mechanism 30 is supported on the support steel plate 20. Then, rotate the hooks 34 on the two support rods 32 so that the holding parts 342 of the hooks 34 on both sides extend into the bottom of the bearing 1. Then, lift the support steel plate 20 using the lifting mechanism 10, thereby simultaneously lifting the bearing 1 and the transfer mechanism 30. Finally, pull the transfer mechanism 30 outward to remove the bearing 1. This method allows for simple and convenient disassembly and maintenance of the bearing in axial-flow propeller turbine generator units during non-Class A maintenance. Furthermore, the bearing support has good stability during disassembly, and the bearing is less likely to scratch or collide with other components.

[0033] In this embodiment, see Figure 2 The hook 34 includes two longitudinal rods 341 welded to the outer wall of the rotating sleeve 33, and a holding part 342 fixed to the end of the longitudinal rods 341, forming an "L" shape. To further increase structural strength, a connecting rod 343 is welded between adjacent longitudinal rods 341. When the hook 34 is rotated to the lateral position, the hook 34 is used for the operator to hold, thereby facilitating the movement of the transfer mechanism 30. Further, see Figure 3 A needle roller slider 35 is fixedly mounted on the lower side of the crossbeam 31. The needle roller slider 35 is used to place the crossbeam 31 on the support steel plate 20. By installing the needle roller slider 35, the flexibility of the crossbeam 31 sliding on the support steel plate 20 is improved.

[0034] See Figure 5 A positioning pin 21 is fixedly installed on the supporting steel plate 20. The upper end of the positioning pin 21 is flush with the top surface of the supporting steel plate 20 or fixed to the bottom of the supporting steel plate 20, and the lower end of the positioning pin 21 extends downward toward the supporting steel plate 20. See Figure 4 The lifting mechanism 10 consists of two jacks, each with a guide hole 11 at its top. The lower end of the positioning pin 21 is movably inserted into the guide hole 11 of the lifting mechanism 10. By fixing the positioning pin 21 to the support steel plate 20, and with the lower end of the positioning pin 21 movably inserted into the guide hole 11 of the lifting mechanism 10, the support steel plate 20 will not move with the transfer mechanism 30 when the transfer mechanism 30 is pulled outward.

[0035] In one embodiment, the locating pin 21 may be welded to the bottom of the supporting steel plate 20.

[0036] In another embodiment, the top of the positioning pin 21 is provided with a cone, and the support steel plate 20 is provided with a conical countersunk hole. After the positioning pin 21 passes through the conical countersunk hole on the support steel plate 20, it is inserted into the guide hole 11. The cone at the top of the positioning pin 21 is located in the conical countersunk hole at the top of the support steel plate 20. This not only facilitates installation, but also limits the position of the support steel plate 20.

[0037] Further, see Figure 4 , 5 It also includes a leveling component 40, which is installed on the lower side of the lifting mechanism 10. The leveling component 40 ensures the stability of the lifting mechanism 10. The lifting mechanism 10 and the leveling component 40 are fixedly installed, thereby ensuring the position of the lifting mechanism 10 and preventing the lifting mechanism 10 from falling.

[0038] For details, see Figure 4 The leveling component 40 has a U-shaped groove structure. One end of the leveling component 40 is supported on the thrust bracket between the tile 1 and the spacer block, and the other end is supported on the spacer block. The top of the leveling component 40 is flush with the top of the spacer block engaging bolt 2.

[0039] See Figure 2 The support rod 32 and the rotating sleeve 33 are provided with corresponding limiting holes. When the first limiting pin 331 is inserted into the limiting holes on the rotating sleeve 33 and the support rod 32, the hook 34 is limited, so that the hanging parts 342 of the hooks 34 on both sides are located on the lower side of the support plate 1, or the hook 34 is in a horizontal state. By inserting the first limiting pin 331 into the support rod 32 and the rotating sleeve 33, the position of the rotating sleeve 33 is limited, so that the rotating sleeve 33 cannot rotate. Figure 6 As shown, the hook 34 is in a lateral limiting state at this time, making it easy for the operator to hold. When the inner end is inconvenient to hold, it is supported by the limiting plate 332. Figure 7As shown, at this time, the hook 34 is in a longitudinal limiting state, thereby limiting the hanging parts 342 of the hooks 34 on both sides to the lower side of the toe 1, preventing the toe 1 from falling off, and improving the stability and safety of the toe 1 during removal.

[0040] See Figure 2 A limiting plate 332 is installed on the rotating sleeve 33, which is placed on one side of the inner side of the toe 1. The limiting plate 332 is perpendicular to the hook 34. When the hook 34 is in the horizontal state, the limiting plate 33 is in the vertical state. When the transfer mechanism 30 moves on the toe 1, the limiting plate 332 is used to insert into the groove on the top surface of the toe 1.

[0041] See Figure 6 At this time, when the hook 34 is in a horizontal position, the limiting plate 33 is in a vertical position. During the movement of the transfer mechanism 30 to the right, the limiting plate 332 is inserted into the groove on the top surface of the jack 1. Its functions are at least the following two: First, the limiting plate 332 supports this end of the transfer mechanism 30, making it easier to push the device onto the jack 1; Second, the limiting plate 332 guides this end of the transfer mechanism 30, so that the transfer mechanism 30 can be moved into place without observing its position through the gap.

[0042] Example 2: Based on the embodiments, referring to examples 1, 2, and 3, a thrust bearing bearing pad removal device for an axial-flow hydro-generator unit includes a lifting mechanism 10, a support steel plate 20, and a transfer mechanism 30. The transfer mechanism 30 includes two crossbeams 31, with support rods 32 installed at both ends of the two crossbeams 31. The two crossbeams 31 and the two support rods 32 together form a frame for accommodating the bearing pad 1. Rotating sleeves 33 are installed on the two support rods 32 between the two crossbeams 31. Hooks 34 are fixedly installed on the rotating sleeves 33, and the holding portions 342 of the hooks 34 on both sides are arranged opposite to each other. Two support steel plates 20 are respectively arranged on the lower side of the two crossbeams 31, and the crossbeams 31 can slide on the support steel plates 20. A lifting mechanism 10 is installed on the lower side of each support steel plate 20. Sleeves 311 are fixed at both ends of the two crossbeams 31, and the two ends of the support rods 32 are inserted into the sleeves 311 on both sides. Corresponding limiting holes are provided on the sleeves 311 and the support rods 32. When the second limiting pin 321 is inserted into the limiting holes on the sleeves 311 and the support rods 32, the support rods 32 are limited. With this structure, the transfer mechanism 30 can be connected to the support plate 1 from both sides, which is suitable for situations where the gap is too small and the transfer mechanism 30 cannot move from the top of the support plate 1.

[0043] Example 3: The method for disassembling the thrust bearing support pad of an axial-flow turbine generator set provided in this embodiment adopts the axial-flow turbine generator set thrust bearing support pad disassembly device in Embodiment 1. The disassembly method includes the following steps: S1, see also Figure 4 Lifting mechanisms 10 are installed on both sides of the jack 1, with a distance between the lifting mechanisms 10 and the jack 1. In this embodiment, the lifting mechanisms 10 use two hydraulic cylinder jacks that can be raised and lowered synchronously.

[0044] S2, see also Figure 5 Support steel plates 20 are installed on the lifting mechanisms 10 on both sides respectively.

[0045] S3, see also Figure 6 Rotate the hooks 34 on both sides of the transfer mechanism 30 to make the hooks 34 on both sides in a horizontal position, and then move the transfer mechanism 30 from the upper side of the towa 1 to directly above the towa 1.

[0046] S4. Move the transfer mechanism 30 down to accommodate the Tuowa 1 inside the transfer mechanism 30, and support the crossbeam 31 on the support steel plate 20.

[0047] S5. Then rotate the hooks 34 on both sides so that the holding parts 342 of the hooks 34 on both sides are engaged at the bottom of the toe 1, as shown. Figure 7 As shown.

[0048] S6. Use the lifting mechanism 10 to lift the jack 1 and the transfer mechanism 30, so that the jack 1 is removed from the thrust support, as shown. Figure 7 As shown.

[0049] S7. Pull the transfer mechanism 30 outward and move the transfer mechanism 30 to the docking translation trolley. Example 4: The method for disassembling the thrust bearing support pad of an axial-flow turbine generator set provided in this embodiment adopts the axial-flow turbine generator set thrust bearing support pad disassembly device described in Example 2. The disassembly method includes the following steps: S1, see also Figure 4 Lifting mechanisms 10 are installed on both sides of the jack 1, with a distance between the lifting mechanisms 10 and the jack 1. The lifting mechanisms 10 use two hydraulic cylinder jacks that can be raised and lowered synchronously.

[0050] S2, see also Figure 5 Support steel plates 20 are installed on the lifting mechanisms 10 on both sides respectively.

[0051] S3. Install the two sets of rotating sleeves 33 and hooks 34 assemblies to the front and rear ends of the jack 1 respectively, and make the holding parts 342 of the hooks 34 on both sides lock into the bottom of the jack 1.

[0052] S4. Insert the support rod 32 into the rotating sleeve 33, and then install the two crossbeams 31 onto the support rod 32 from both sides of the support plate 1 through the sleeve 311, as follows. Figure 7 As shown.

[0053] S5. Use the lifting mechanism 10 to lift the jack 1 and the transfer mechanism 30, so that the jack 1 is removed from the thrust support. Figure 7 As shown.

[0054] S6. Pull the transfer mechanism 30 outward and move the transfer mechanism 30 onto the docking translation trolley.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for disassembling the thrust bearing pad of an axial-flow hydro-generator unit, characterized in that: It includes a lifting mechanism (10), a support steel plate (20), and a transfer mechanism (30); the transfer mechanism (30) includes two crossbeams (31), and two struts (32) are installed at both ends of the two crossbeams (31). The two crossbeams (31) and the two struts (32) together form a frame for accommodating the tile (1); a rotating sleeve (33) is installed on the strut (32) between the two crossbeams (31), and a hook (34) is fixedly installed on the rotating sleeve (33). The hanging parts (342) of the hooks (34) on both sides are arranged opposite to each other; two support steel plates (20) are respectively set on the lower side of the two crossbeams (31), and the crossbeams (31) can slide on the support steel plates (20); a lifting mechanism (10) is installed on the lower side of each support steel plate (20).

2. The thrust bearing bearing removal device for an axial-flow hydro-generator unit according to claim 1, characterized in that: The hook (34) includes at least two longitudinal rods (341) fixed to the outer wall of the rotating sleeve (33), and a holding part (342) fixed to the end of the longitudinal rods (341); a connecting rod (343) is fixed between adjacent longitudinal rods (341).

3. The thrust bearing bearing removal device for an axial-flow turbine generator set according to claim 1, characterized in that: A needle roller slider (35) is installed and fixed on the lower side of the crossbeam (31), and the needle roller slider (35) is used to be placed on the support steel plate (20).

4. The thrust bearing bearing removal device for an axial-flow hydro-generator unit according to claim 1, characterized in that: A positioning pin (21) is fixedly installed on the supporting steel plate (20). The upper end of the positioning pin (21) is flush with the top surface of the supporting steel plate (20) or fixed to the bottom of the supporting steel plate (20). The lower end of the positioning pin (21) extends to the lower side of the supporting steel plate (20). The lifting mechanism (10) consists of two jacks. The top of the jacks is provided with a guide hole (11). The lower end of the positioning pin (21) is movably inserted into the guide hole (11) of the lifting mechanism (10).

5. The thrust bearing bearing removal device for an axial-flow turbine generator set according to claim 1, characterized in that: It also includes a leveling component (40), which is installed on the underside of the lifting mechanism (10).

6. The thrust bearing bearing removal device for an axial-flow turbine generator set according to claim 5, characterized in that: The leveling component (40) has a U-shaped groove structure. One end of the leveling component (40) is supported on the thrust bracket between the jack (1) and the spacer block, and the other end is supported on the spacer block. The top of the leveling component (40) is flush with the top of the spacer block clamping bolt (2).

7. The thrust bearing bearing removal device for an axial-flow hydro-generator unit according to claim 1, characterized in that: The support rod (32) and the rotating sleeve (33) are provided with a number of corresponding limiting holes. When the first limiting pin (331) is inserted into the limiting holes on the rotating sleeve (33) and the support rod (32), the hook (34) is limited, so that the hanging part (342) of the hooks (34) on both sides is located under the toe (1), or the hook (34) is in a horizontal state.

8. The thrust bearing bearing removal device for an axial-flow hydro-generator unit according to claim 1, characterized in that: A limiting plate (332) is installed on a rotating sleeve (33) for placing on one side of the inner side of the toe (1). The limiting plate (332) is perpendicular to the hook (34). When the hook (34) is in a horizontal state, the limiting plate (332) is in a vertical state. When the transfer mechanism (30) moves on the toe (1), the limiting plate (332) is used to insert into the groove on the top surface of the toe (1).

9. A thrust bearing bearing removal device for an axial-flow hydro-generator unit according to any one of claims 1 to 8, characterized in that: Sleeves (311) are fixed at both ends of the two crossbeams (31), and the two ends of the strut (32) are inserted into the sleeves (311) on both sides respectively. The sleeves (311) and the strut (32) are provided with corresponding limiting holes. When the second limiting pin (321) is inserted into the limiting holes on the sleeves (311) and the strut (32), the strut (32) is limited.

10. A method for disassembling the thrust bearing bearing pad of an axial-flow hydro-generator unit, characterized in that: The device for dismantling the thrust bearing pad of an axial-flow turbine generator set, as described in any one of claims 1 to 8, includes the following steps: S1. Install lifting mechanisms (10) on both sides of the toe (1), with a distance between the lifting mechanisms (10) and the toe (1); S2. Install support steel plates (20) on the lifting mechanisms (10) on both sides respectively. S3. Rotate the hooks (34) on both sides of the transfer mechanism (30) so that the hooks (34) on both sides are in a horizontal state, and then move the transfer mechanism (30) from the top of the toe (1) to the top of the toe (1); S4. Move the transfer mechanism (30) down and accommodate the towa (1) inside the transfer mechanism (30). The crossbeam (31) is supported on the support steel plate (20). S5. Then rotate the hooks (34) on both sides so that the holding parts (342) of the hooks (34) on both sides are locked at the bottom of the towa (1); S6. Use the lifting mechanism (10) to lift the toe (1) and the transfer mechanism (30) so that the toe (1) leaves the thrust support; S7. Pull the transfer mechanism (30) outward and move the transfer mechanism (30) onto the docking translation trolley.

11. A method for disassembling the thrust bearing bearing pad of an axial-flow hydro-generator unit, characterized in that: The thrust bearing bearing removal device for an axial-flow turbine generator set as described in claim 9 includes the following steps: S1. Install lifting mechanisms (10) on both sides of the toe (1), with a distance between the lifting mechanisms (10) and the toe (1); S2. Install support steel plates (20) on the lifting mechanisms (10) on both sides respectively. S3. Install the two sets of rotating sleeves (33) and hooks (34) assemblies to the front and rear ends of the toe (1) respectively, and make the hanging parts (342) of the hooks (34) on both sides snap into the bottom of the toe (1); S4. Insert the support rod (32) into the rotating sleeve (33), and then install the two crossbeams (31) onto the support rod (32) from both sides of the bracket (1) through the sleeve (311); S5. Use the lifting mechanism (10) to lift the toe (1) and the transfer mechanism (30) so that the toe (1) leaves the thrust support; S6. Pull the transfer mechanism (30) outward and move the transfer mechanism (30) onto the docking translation trolley.

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