A vertical hydro generator brake air brake disassembly and assembly device

Abstract

This utility model provides a vertical hydro-generator brake damper disassembly and assembly device, including a lift, a push-pull frame and a push-pull mechanism on the lifting platform at the top of the lift, the push-pull mechanism driving the push-pull frame to extend and retract on the lifting platform. The push-pull frame includes a U-shaped telescopic frame, with outwardly extending connecting plates at the ends of both side walls of the U-shaped telescopic frame. One connecting plate has a rotating shaft, and the other connecting plate has a connecting shaft. A rotating opening and closing pull plate is rotatably mounted on the rotating shaft, and a matching groove is provided at the lower end of the other end of the rotating opening and closing pull plate, which is adapted to the connecting shaft. Limit plates are provided at the front ends of both the rotating shaft and the connecting shaft. By coordinating the lift and the push-pull mechanism, precise alignment of the lifting platform with the brake damper installation position is achieved, and the smooth pulling out or reassembly of the damper is completed by the telescopic movement of the push-pull frame, greatly improving work efficiency and safety.

Description

Technical Field

[0001] This utility model relates to the field of maintenance and disassembly, and in particular to a disassembly and assembly device for a vertical hydro-generator brake damper. Background Technology

[0002] The brake damper of a vertical hydro-generator unit is typically installed on the lower frame, below the upper guide bearing, thrust bearing, and generator rotor. Because the brake damper is located in the confined space of the downwind tunnel, and is adjacent to the generator rotor with few available lifting points, the traditional manual disassembly and assembly method is not only inefficient and labor-intensive, but also poses significant safety risks. Therefore, a brake damper disassembly and assembly device for vertical hydro-generators is proposed to solve these problems. Utility Model Content

[0003] The main purpose of this utility model is to provide a vertical hydro-generator brake airlock disassembly and assembly device to solve the problem that the brake airlock is inconvenient to disassemble and assemble in the first space.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a vertical hydro-generator brake damper disassembly and assembly device, including a lift, a push-pull frame and a push-pull mechanism are provided on the lifting platform at the top of the lift, the push-pull mechanism drives the push-pull frame to extend and retract on the lifting platform, wherein the push-pull frame includes a U-shaped telescopic frame, and the ends of the two side walls of the U-shaped telescopic frame are provided with outwardly extending connecting plates, one connecting plate is provided with a rotating shaft, the other connecting plate is provided with a connecting shaft, a rotating opening and closing pull plate is rotatably provided on the rotating shaft, and a fitting groove adapted to the connecting shaft is provided below the other end of the rotating opening and closing pull plate, and a limit plate is provided at the front end of both the rotating shaft and the connecting shaft.

[0005] In the preferred embodiment, the U-shaped telescopic frame includes a bottom push plate and connecting side plates disposed on both sides of the bottom push plate, with the connecting plates disposed at the ends of the connecting side plates.

[0006] In the preferred embodiment, the push-pull mechanism includes two slide rod assemblies symmetrically arranged at the top edge of the lifting platform, a screw drive assembly is provided at the bottom central shaft of the lifting platform, and a moving groove is also provided on the lifting platform through which it passes.

[0007] The bottom push plate has sliding shafts on both sides that slide with the slide rod assembly, and an internal threaded shaft at the bottom that passes through the moving groove and is threaded with the lead screw drive assembly.

[0008] In the preferred embodiment, the slide rod assembly includes two support seats symmetrically arranged at both ends, with the slide rod body disposed between the two support seats;

[0009] The lead screw drive assembly includes two symmetrically arranged bearings at both ends, and a drive screw rotatably arranged between the two bearings. One of the bearings has a drive device on its outer side that is connected to the drive screw, and an internal threaded shaft is threaded onto the outside of the drive screw.

[0010] In the preferred embodiment, the end of the rotating opening and closing pull plate is provided with a temporary locking component that can pass through and exit the fitting groove, and the outside of the connecting shaft is provided with a slot that is compatible with the temporary locking component.

[0011] In the preferred embodiment, the temporary locking component includes a through-hole located on the side of the mating groove and extending through the end of the rotating opening and closing pull plate. A telescopic sleeve is provided on the outside of the through-hole, and a telescopic cavity communicating with the through-hole is provided inside the telescopic sleeve. Limiting grooves are provided on the two inner walls opposite to each other in the telescopic cavity. A locking block is movably disposed in the telescopic cavity, passing through the mating groove and engaging with the locking groove. A limiting block that slides with the limiting groove is provided at one end of the locking block in the telescopic cavity. A telescopic spring that abuts against the locking block is also provided in the telescopic cavity. The end of the locking block and the locking groove are both hemispherical.

[0012] In the preferred embodiment, the end of the telescopic sleeve away from the through-hole is provided with a movable opening, in which a pull rod is movably installed. The pull rod passes through the telescopic spring and is connected to the end of the locking block. The other end of the pull rod is provided with a handle.

[0013] In the preferred embodiment, the rotating opening and closing pull plate includes an outer plate and a telescopic plate. The end of the outer plate is provided with a connecting hole for rotatable connection with the rotating shaft, and the inner side is provided with a telescopic groove with an open end. The telescopic plate is telescopically inserted into the telescopic groove, and the inner sides are flush. Both the upper and lower sides of the telescopic groove are provided with telescopic sliding grooves. One end of the telescopic plate located in the telescopic groove is provided with a telescopic sliding post that slides with the two telescopic sliding grooves. The upper telescopic sliding post protrudes from the telescopic sliding groove and is threaded with a locking nut.

[0014] In the preferred embodiment, a support frame is provided at the bottom of the elevator.

[0015] This utility model provides a vertical hydro-generator brake airlock disassembly and assembly device. By setting up a lifting platform and a push-pull mechanism, the lifting platform and the brake airlock installation position are precisely aligned. The airlock is smoothly pulled out or reassembled by the telescopic movement of the push-pull frame, which greatly improves the work efficiency and safety. In addition, the push-pull frame adopts a U-shaped telescopic frame structure and is equipped with a rotating shaft and a connecting shaft on the connecting plates at both ends. With the rotatable and openable pull plate and the fitting groove structure, the opening and closing state of the pull plate can be flexibly adjusted as needed during the push-pull process to avoid interference and ensure smooth push-pull action. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is an overall structural diagram of the present invention;

[0018] Figure 2 This is a structural diagram of the push-pull frame of this utility model;

[0019] Figure 3 This is a utility model Figure 2 Another perspective on the structure;

[0020] Figure 4 This is a structural diagram of the push-pull mechanism of this utility model;

[0021] Figure 5 This is a cross-sectional view of the connection structure of the temporary locking component of this utility model;

[0022] Figure 6 This is a utility model Figure 5 Enlarged view of the A-structure;

[0023] Figure 7 This is an exploded structural diagram of the rotating opening and closing pull plate of this utility model;

[0024] In the diagram: 1. Elevator; 2. Push-pull mechanism; 20. Slide rod assembly; 201. Support base; 202. Slide rod body; 21. Screw drive assembly; 211. Drive screw; 212. Moving groove; 22. Push-pull frame; 3. U-shaped telescopic frame; 31. Bottom push plate; 310. Connecting side plate; 311. Connecting plate; 32. Rotating shaft; 33. Connecting shaft; 34. Slot; 340. Rotating opening and closing pull plate; 35. Outer plate; 350. Telescopic groove; 351. Telescopic plate; 352. Connecting hole; 353. Fitting groove; 36. Temporary locking component; 37. Through opening; 370. Telescopic sleeve; 371. Telescopic cavity; 372. Limiting groove; 373. Locking block; 374. Limiting block; 375. Telescopic spring; 376. Movable opening; 377. Pull rod; 378. Handle; 4. Support frame. Detailed Implementation

[0025] like Figure 1-7 As shown, a vertical hydro-generator brake damper disassembly and assembly device includes a lift 1. In this embodiment, the lift 1 is a commercially available scissor lift, so it will not be described in detail here.

[0026] The top of the elevator 1 is equipped with a push-pull frame 3 and a push-pull mechanism 2. The push-pull mechanism 2 drives the push-pull frame 3 to extend and retract on the elevator platform. Thus, the extension and retraction of the push-pull mechanism 2 can be used to pull the brake air brake from the lower frame to the elevator platform, or push it from the elevator platform to the lower frame. At the same time, the elevator 1 can be used to raise its elevator platform to be level with the lower frame or lower it to a lower position, which facilitates disassembly and maintenance.

[0027] To facilitate the retraction of the brake damper frame into the push-pull frame 3, the push-pull frame 3 includes a U-shaped telescopic frame 31. Each of the two side walls of the U-shaped telescopic frame 31 has an outwardly extending connecting plate 32. One connecting plate 32 has a rotating shaft 33, and the other connecting plate 32 has a connecting shaft 34. A rotating opening and closing pull plate 35 is rotatably mounted on the rotating shaft 33. The rotating opening and closing pull plate 35 can open and close the opening of the U-shaped telescopic frame 31 by rotation, thus facilitating the extension and retraction of the push-pull frame 3. To avoid contact with the brake air brake, thus preventing the push-pull effect from being impossible, the outward-extending connecting plate 32 can avoid affecting the internal space of the U-shaped telescopic frame 31. The other end of the rotating opening and closing pull plate 35 is provided with a matching groove 36 that is compatible with the connecting shaft 34, so that the rotating opening and closing pull plate 35 can be fastened to the connecting shaft 34. In addition, the front end of both the rotating shaft 33 and the connecting shaft 34 is provided with a limit plate, so that the rotating opening and closing pull plate 35 can be limited in front of it, providing a reaction force for pulling the brake air brake.

[0028] It should be noted that the diameter of the limiting plate should meet its limiting requirements.

[0029] In the preferred embodiment, the U-shaped telescopic frame 31 includes a bottom push plate 310 and connecting side plates 311 disposed on both sides of the bottom push plate 310. The connecting plate 32 is disposed at the end of the connecting side plate 311. During the extension of the push-pull frame 3, the bottom push plate 310 plays the role of pushing the brake airlock.

[0030] In the preferred embodiment, the push-pull mechanism 2 includes two slide rod assemblies 20 symmetrically arranged at the top edge of the lifting platform, a screw drive assembly 21 is provided at the bottom central shaft of the lifting platform, and a moving groove 22 is also provided on the lifting platform to pass through it. The length of the moving groove 22 meets the requirement of the push-pull frame 3 extending out.

[0031] The bottom push plate 310 has sliding shafts 313 on both sides that slide in cooperation with the slide rod assembly 20, and an internal threaded shaft 314 at the bottom that passes through the moving groove 22 and is threaded in cooperation with the lead screw transmission assembly 21.

[0032] With this design, the push-pull frame 3 can be extended or retracted by rotating the screw drive assembly 21. It should be noted that the width of the bottom push plate 310 is greater than that of the internal thread shaft 314 and the sliding shaft 313. When the bottom push plate 310 moves to the front end, its front side extends beyond the front end of the lifting platform, thus meeting the need to completely push the push-pull frame 3 away from the top of the lifting platform.

[0033] Furthermore, the slide rod assembly 20 includes two support seats 201 symmetrically arranged at both ends, with a slide rod body 202 disposed between the two support seats 201, and a sliding shaft 313 slidably fitted onto the outside of the slide rod body 202.

[0034] The lead screw drive assembly 21 includes two symmetrically arranged bearing seats 210 at both ends, and a drive screw 211 rotatably arranged between the two bearing seats 210. The drive screw 211 is rotatably arranged between the two bearing seats 210 via bearings. A drive device 212 that is connected to the drive screw 211 is provided on the outer side of one of the bearing seats 210. The drive device 212 can be used to rotate the drive screw 211 between the two bearing seats 210. The internal threaded shaft 314 is threadedly fitted on the outside of the drive screw 211, thereby cooperating with the sliding limit of the slide bar body 202 to move it outside the drive screw 211.

[0035] In the preferred embodiment, the end of the rotating opening and closing pull plate 35 is provided with a temporary locking component 37 that can pass through the fitting groove 36, and the outside of the connecting shaft 34 is provided with a slot 340 that is adapted to the temporary locking component 37, thereby temporarily restricting the rotation of the rotating opening and closing pull plate 35 and improving its stability during use.

[0036] In the preferred embodiment, the temporary locking component 37 includes a through-hole 370 disposed on the side of the mating groove 36 and passing through the end of the rotating opening and closing pull plate 35. A telescopic sleeve 371 is disposed on the outside of the through-hole 370. A telescopic cavity 372 communicating with the through-hole 370 is disposed inside the telescopic sleeve 371. Limiting grooves 373 are provided on the two opposing inner walls of the telescopic cavity 372. A locking block 374 is movably disposed in the telescopic cavity 372, passing through the mating groove 36 and engaging with the slot 340. A limiting block 375 is disposed at one end of the locking block 374 located in the telescopic cavity 372, which slides with the limiting groove 373. A telescopic spring 376 is also disposed in the telescopic cavity 372, which abuts against the locking block 374. The end of the locking block 374 and the slot 340 are both hemispherical.

[0037] This design utilizes the tension of the telescopic spring 376 to keep the locking block 374 protruding from the through-hole 370 under the limiting action of the limiting block 375 and the limiting groove 373. After contacting the connecting shaft 34, it retracts until it engages with the slot 340, thus providing a certain degree of locking effect on the rotating opening and closing pull plate 35. The locking effect can be achieved by selecting a telescopic spring 376 with an appropriate elastic coefficient as needed. In addition, when unlocking, only a corresponding upward lifting force needs to be applied to the rotating opening and closing pull plate 35.

[0038] In the preferred embodiment, the telescopic sleeve 371 has a movable opening 377 at the end away from the through opening 370. The diameter of the telescopic spring 376 is larger than the diameter of the movable opening 377. A pull rod 378 is movably installed in the movable opening 377. The pull rod 378 passes through the telescopic spring 376 and is connected to the end of the locking block 374. The other end of the pull rod 378 is provided with a handle 379, which can further improve the convenience of unlocking and avoid the situation of jamming and being unable to unlock.

[0039] In the preferred embodiment, the rotating opening and closing pull plate 35 includes an outer sleeve plate 350 and a telescopic plate 352. The end of the outer sleeve plate 350 is provided with a connecting hole 353 that is rotatably connected to the rotating shaft 33, and the inner side is provided with a telescopic groove 351 with an open end. The telescopic plate 352 is telescopically inserted into the telescopic groove 351, and the inner sides are flush.

[0040] This design allows the rotating opening and closing plate 35 to be configured as a telescopic structure, thereby reducing the length of the rotating opening and closing plate 35 in a confined space, making it easier to rotate and open. The flush inner side design also avoids affecting its contact with the brake damper.

[0041] The telescopic groove 351 is provided with telescopic sliding grooves 354 on both the upper and lower sides. The telescopic plate 352 is provided with a telescopic sliding post 355 at one end of the telescopic groove 351, which slides with the two telescopic sliding grooves 354. The telescopic sliding post 355 slides with the telescopic sliding groove 354 to play a role in telescopic limit. In addition, the upper telescopic sliding post 355 passes through the telescopic sliding groove 354 and is threaded with a lock nut 356. The lock nut 356 can be used to lock the length to achieve the effect of fixing the length.

[0042] In the preferred embodiment, a support frame 4 is provided at the bottom of the elevator 1. The overall height of the device can be adjusted accordingly through the support frame 4, and its height can be adjusted as needed.

[0043] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A device for disassembling and assembling a brake damper on a vertical hydro-generator, characterized in that: The system includes a lift (1), and a push-pull frame (3) and a push-pull mechanism (2) are provided on the lifting platform at the top of the lift (1). The push-pull mechanism (2) drives the push-pull frame (3) to extend and retract on the lifting platform. The push-pull frame (3) includes a U-shaped telescopic frame (31). Both ends of the two side walls of the U-shaped telescopic frame (31) are provided with outwardly extending connecting plates (32). One of the connecting plates (32) is provided with a rotating shaft (33), and the other connecting plate (32) is provided with a connecting shaft (34). A rotating opening and closing pull plate (35) is rotatably provided on the rotating shaft (33). A matching groove (36) adapted to the connecting shaft (34) is provided below the other end of the rotating opening and closing pull plate (35). Limit plates are provided at the front ends of both the rotating shaft (33) and the connecting shaft (34).

2. The vertical hydro-generator brake damper disassembly and assembly device according to claim 1, characterized in that: The U-shaped telescopic frame (31) includes a bottom push plate (310) and connecting side plates (311) disposed on both sides of the bottom push plate (310), with connecting plates (32) disposed at the ends of the connecting side plates (311).

3. The brake shutter dismounting device for vertical hydro-generator according to claim 2, characterized in that: The push-pull mechanism (2) includes two slide rod assemblies (20) symmetrically arranged at the top edge of the lifting platform, a screw drive assembly (21) is provided at the bottom center shaft of the lifting platform, and a moving groove (22) through which it passes is also provided on the lifting platform. The bottom push plate (310) is provided with sliding shafts (313) on both sides that slide with the slide rod assembly (20), and an internal thread shaft (314) that passes through the moving groove (22) and is threaded with the lead screw transmission assembly (21) at the bottom.

4. The brake shutter dismounting device for vertical hydro-generator according to claim 3, characterized in that: The slide rod assembly (20) includes two support seats (201) symmetrically arranged at both ends, and the slide rod body (202) is arranged between the two support seats (201). The lead screw drive assembly (21) includes two symmetrically arranged bearings (210) at both ends, and a drive screw (211) rotatably arranged between the two bearings (210). One of the bearings (210) has a drive device (212) that is connected to the drive screw (211) on its outer side. An internal threaded shaft (314) is threadedly fitted on the outside of the drive screw (211).

5. The brake and wicket gate dismounting device for vertical hydrogenerator according to any of claims 1-4, characterized in that: The end of the rotating opening and closing pull plate (35) is provided with a temporary locking component (37) that can pass through the fitting groove (36), and the outside of the connecting shaft (34) is provided with a slot (340) that is compatible with the temporary locking component (37).

6. The brake shutter dismounting device for vertical hydro-generator according to claim 5, characterized in that: The temporary locking component (37) includes a through-hole (370) provided on the side of the fitting groove (36) and passing through the end of the rotating opening and closing pull plate (35). A telescopic sleeve (371) is provided on the outside of the through-hole (370). A telescopic cavity (372) communicating with the through-hole (370) is provided inside the telescopic sleeve (371). A limiting groove (373) is provided on each of the two inner walls opposite to the telescopic cavity (372). A locking block (374) is movably provided in the telescopic cavity (372) that passes through the fitting groove (36) and engages with the slot (340). A limiting block (375) that slides with the limiting groove (373) is provided at one end of the locking block (374) in the telescopic cavity (372). A telescopic spring (376) that abuts against the locking block (374) is also provided in the telescopic cavity (372). The end of the locking block (374) and the slot (340) are both hemispherical.

7. The vertical hydro-generator brake damper disassembly and assembly device according to claim 6, characterized in that: The telescopic sleeve (371) has a movable opening (377) at one end away from the through opening (370). A pull rod (378) is movably installed in the movable opening (377). The pull rod (378) passes through the telescopic spring (376) and is connected to the end of the locking block (374). A handle (379) is provided at the other end of the pull rod (378).

8. The brake shutter dismounting device for vertical hydro-generator according to claim 7, characterized in that: The rotating opening and closing pull plate (35) includes an outer plate (350) and a telescopic plate (352). The end of the outer plate (350) is provided with a connecting hole (353) that is rotatably connected to the rotating shaft (33). The inner side is provided with a telescopic groove (351) with an open end. The telescopic plate (352) is telescopically inserted into the telescopic groove (351) and the inner sides are flush. The upper and lower sides of the telescopic groove (351) are provided with telescopic sliding grooves (354). One end of the telescopic plate (352) located in the telescopic groove (351) is provided with a telescopic sliding post (355) that slides with the two telescopic sliding grooves (354). The upper telescopic sliding post (355) passes through the telescopic sliding groove (354) and is threaded with a lock nut (356).

9. The brake and wicket gate dismounting device for vertical hydrogenerator according to claim 1, characterized in that: The bottom of the elevator (1) is equipped with a support frame (4).

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