Field repair tool for water turbine generator set booster cylinder

Abstract

The utility model provides a kind of for water turbine generator unit servomotor cylinder field repair tool, its technical scheme is: including bottom plate, at least two supports are provided on bottom plate, servomotor cylinder is placed on support, bottom plate is further equipped with base, linear motion mechanism is set on base, mechanical arm is set on linear motion mechanism, tool holder is equipped with on the side of linear motion mechanism of bottom plate, cladding tool, polishing tool and milling tool are placed on tool holder.The utility model has beneficial effect: the tool supports servomotor cylinder to carry out in situ repair, avoids the cumbersome process needing to be disassembled in traditional method, processing, greatly shortens downtime;Multi-process whole-process machining equipment integrating laser additive and high-precision milling, grinding, polishing subtractive machining can quickly respond to complex damage, ensure the continuity of unit operation and high cost performance, especially suitable for water power and other key fields sensitive to downtime.

Description

Technical Field

[0001] This utility model belongs to the technical field of generator set maintenance tools, and relates to a tooling for on-site repair of the cylinder body of a hydro-generator set relay. Background Technology

[0002] The servo motor, a crucial component of the hydro-generator unit, primarily receives hydraulic signals from the speed control system and converts them into piston displacement to manipulate the guide vane mechanism, thereby controlling the movable guide vane switch. During maintenance, severe scratches were discovered on the bottom of the servo motor cylinder and piston. This defect can lead to excessive oil leakage in the opening and closing chambers, causing the movable guide vanes to lose their fixed opening, or even resulting in the unit losing control of the guide vanes. Current solutions involve returning the servo motor to the factory for manual welding and boring / grinding, but this method suffers from poor stability, high labor costs, and low processing efficiency, impacting the power generation cycle and causing economic losses. Summary of the Invention

[0003] To address the problems of poor stability, high labor costs, and low processing efficiency in the repair of relay cylinders in the existing technology, which affect the power generation cycle and cause economic losses, this utility model provides a tooling for on-site repair of relay cylinders of hydro-generator sets. The technical solution is as follows: it includes a base plate, on which at least two supports are provided, on which the relay cylinder is placed. The base plate is also provided with a base, on which a linear motion mechanism is provided, and on which a robotic arm is provided. A tool rack is provided on one side of the linear motion mechanism on the base plate, on which cladding tools, polishing tools, and milling tools are placed.

[0004] In a preferred embodiment, the slider of the linear motion mechanism is fixedly connected to the robotic arm via a wall mount.

[0005] In a preferred embodiment, the robotic arm is movably connected to one of the cladding tool, polishing tool, and milling tool via a quick-change head.

[0006] In a preferred embodiment, the cladding tool includes a cladding head, the side mounting area of ​​the cladding head is connected to one side of the cladding head connecting plate, the other side of the cladding head connecting plate is connected to one side of the quick-change device, the other side of the quick-change device is connected to the robotic arm connecting flange, and the robotic arm connecting flange is connected to the quick-change head of the robotic arm.

[0007] In a preferred embodiment, the grinding and polishing tool includes a grinding wheel, the center of which is fixedly connected to the drive shaft of a drive motor. The other end of the drive motor is electrically fixedly connected to a force control device. The force control device is connected to a quick-change device via a force control connecting flange. The other end of the quick-change device is connected to a robotic arm connecting flange. The robotic arm connecting flange is connected to the quick-change head of the robotic arm.

[0008] In a preferred embodiment, the milling tool includes a milling cutter, the tail of which is connected to the drive end of the electric spindle. The electric spindle is connected to one side of the mounting plate via a clamping block. The other side of the mounting plate is fixedly connected to a quick-change device. The other end of the quick-change device is connected to a robotic arm connecting flange, and the robotic arm connecting flange is connected to the quick-change head of the robotic arm.

[0009] In a preferred embodiment, the clamping block is provided with a support rod at the end near the milling cutter, and a guide wheel is provided on the side wall of the end of the support rod away from the clamping block.

[0010] In a preferred embodiment, the height of the lowest plane of the guide wheel is flush with the lowest plane of the milling cutter.

[0011] The beneficial effects of this utility model are: the tooling supports in-situ repair of the relay cylinder, avoiding the cumbersome process of disassembly and return to the factory for processing in traditional methods, and greatly shortening downtime; the multi-process full-process processing equipment that integrates laser additive manufacturing and high-precision milling, grinding and polishing subtractive manufacturing can quickly respond to complex damage, ensure the continuity of unit operation and high cost performance, and is especially suitable for critical fields such as hydropower that are sensitive to downtime. Attached Figure Description

[0012] Figure 1 This is a schematic diagram illustrating the application scenario of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 3 This is a schematic diagram showing the connection between the robotic arm and the milling tool in this utility model.

[0015] Figure 4 This is a schematic diagram of the milling tool in this utility model.

[0016] Figure 5 This is a schematic diagram of the grinding and polishing tool in this utility model.

[0017] Figure 6 This is a schematic diagram of the cladding tool in this utility model.

[0018] In the diagram: 1. Waterwheel chamber; 2. Relay cylinder body; 3. On-site repair fixture for relay cylinder body; 4. Bracket; 5. Base plate; 6. Base; 7. Linear motion mechanism; 8. Tool rack; 9. Cladding tool; 10. Grinding and polishing tool; 11. Milling tool; 12. Robotic arm; 13. Electric spindle; 14. Milling cutter; 15. Guide wheel; 16. Support rod; 17. Clamping block; 18. Mounting plate; 19. Quick change device; 20. Robotic arm connecting flange; 21. Force control connecting flange; 22. Force control device; 23. Drive motor; 24. Grinding wheel; 25. Cladding head connecting plate; 26. Cladding head. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Example

[0021] like Figure 1 The above-described on-site repair tooling for the servo cylinder of a hydro-generator set is shown. Both the servo cylinder repair tooling 3 and the servo cylinder 2 are located inside the waterwheel chamber 1.

[0022] like Figure 2 The tooling shown for on-site repair of the cylinder body of a hydro-generator set includes a base plate 5, on which two supports 4 are mounted. The cylinder body 2 of the relay unit is placed on the supports 4. The base plate 5 also has a base 6, on which a linear motion mechanism 7 is mounted. A robotic arm 12 is mounted on the linear motion mechanism 7. A tool rack 8 is provided on one side of the linear motion mechanism 7 on the base plate 5. The tool rack 8 holds a cladding tool 9, a polishing tool 10, and a milling tool 11. The linear motion mechanism 7 is a linear guide rail and its associated drive motor.

[0023] Furthermore, the slider of the linear motion mechanism 7 is fixedly connected to the robotic arm 12 via a wall mount.

[0024] like Figure 3 The robotic arm 12 shown is movably connected to one of the cladding tool 9, the polishing tool 10, and the milling tool 11 via a quick-change head.

[0025] like Figure 6 The cladding tool 9 shown includes a cladding head 26. The side mounting area of ​​the cladding head 26 is connected to one side of the cladding head connecting plate 25. The other side of the cladding head connecting plate 25 is connected to one side of the quick-change device 19. The other side of the quick-change device 19 is connected to the robotic arm connecting flange 20. The robotic arm connecting flange 20 is connected to the quick-change head of the robotic arm 12.

[0026] Furthermore, the quick-change device 19 is the Hashida QT-40.

[0027] like Figure 5 The polishing tool 10 shown includes a grinding wheel 24. The center of the grinding wheel 24 is fixedly connected to the drive shaft of the drive motor 23. The other end of the drive motor 23 is electrically fixedly connected to the force control device 22. The force control device 22 is connected to the quick-change device 19 through the force control connecting flange 21. The other end of the quick-change device 19 is connected to the robotic arm connecting flange 20. The robotic arm connecting flange 20 is connected to the quick-change head of the robotic arm 12.

[0028] like Figure 4The milling tool 11 shown includes a milling cutter 14. The tail of the milling cutter 14 is connected to the drive end of the electric spindle 13. The electric spindle 13 is connected to one side of the mounting plate 18 via a clamping block 17. The other side of the mounting plate 18 is fixedly connected to a quick-change device 19. The other end of the quick-change device 19 is connected to a robotic arm connecting flange 20. The robotic arm connecting flange 20 is connected to the quick-change head of the robotic arm 12.

[0029] Furthermore, the clamping block 17 is provided with a support rod 16 at one end near the milling cutter 14, and a guide wheel 15 is provided on the side wall of the end of the support rod 16 away from the clamping block 17.

[0030] Furthermore, the height of the lowest plane of the guide wheel 15 is flush with the lowest plane of the milling cutter 14.

[0031] The above-mentioned tooling is used to repair the generator cylinder body. The repair process is as follows: the robotic arm 12 moves to the vicinity of the tool rack 8 via the linear motion mechanism 7. The quick-change head of the robotic arm 12 is connected to the robotic arm connecting flange 20 of the milling tool 11. Then, the robotic arm 12 moves the milling tool 11 to the part of the generator cylinder body 2 to be repaired for milling and cutting. Then, the robotic arm 12 returns to the tool rack 8 to replace the cladding tool 9. The cladding tool 9 is moved to the milling part for cladding and adding material. Finally, the robotic arm 12 returns to the tool rack 8 to replace the grinding and polishing tool 10. The grinding and polishing tool 10 grinds the cladding part. After the grinding is smooth, the repair process is completed. The generator cylinder body 2 is hoisted, moved away, and reinstalled in the generator set.

Claims

1. A tooling system for on-site repair of the cylinder body of a hydro-generator set, comprising a base plate (5), characterized in that, At least two supports (4) are provided on the base plate (5). The relay cylinder (2) is placed on the support (4). The base plate (5) is also provided with a base (6). A linear motion mechanism (7) is provided on the base (6). A robotic arm (12) is provided on the linear motion mechanism (7). A tool rack (8) is provided on one side of the linear motion mechanism (7) on the base plate (5). A cladding tool (9), a polishing tool (10) and a milling tool (11) are placed on the tool rack (8).

2. The on-site repair tooling for the cylinder body of a hydro-generator set according to claim 1, characterized in that, The slider of the linear motion mechanism (7) is fixedly connected to the robotic arm (12) via a wall mount.

3. The on-site repair fixture for the cylinder body of a hydro-generator set according to claim 1, characterized in that, The robotic arm (12) is movably connected to one of the cladding tool (9), the polishing tool (10), and the milling tool (11) via a quick-change head.

4. The on-site repair fixture for the cylinder body of a hydro-generator set according to claim 1, characterized in that, The cladding tool (9) includes a cladding head (26), the side mounting area of ​​the cladding head (26) is connected to one side of the cladding head connecting plate (25), the other side of the cladding head connecting plate (25) is connected to one side of the quick-change device (19), the other side of the quick-change device (19) is connected to the robotic arm connecting flange (20), and the robotic arm connecting flange (20) is connected to the quick-change head of the robotic arm (12).

5. The on-site repair fixture for the cylinder body of a hydro-generator set according to claim 1, characterized in that, The grinding and polishing tool (10) includes a grinding wheel (24). The center of the grinding wheel (24) is fixedly connected to the drive shaft of the drive motor (23). The other end of the drive motor (23) is electrically fixedly connected to the force control device (22). The force control device (22) is connected to the quick-change device (19) through the force control connecting flange (21). The other end of the quick-change device (19) is connected to the robotic arm connecting flange (20). The robotic arm connecting flange (20) is connected to the quick-change head of the robotic arm (12).

6. The on-site repair fixture for the cylinder body of a hydro-generator set according to claim 1, characterized in that, The milling tool (11) includes a milling cutter (14), the tail of which is connected to the drive end of the electric spindle (13). The electric spindle (13) is connected to one side of the mounting plate (18) via a clamping block (17). The other side of the mounting plate (18) is fixedly connected to a quick-change device (19). The other end of the quick-change device (19) is connected to a robotic arm connecting flange (20). The robotic arm connecting flange (20) is connected to the quick-change head of the robotic arm (12).

7. The on-site repair fixture for the cylinder body of a hydro-generator set according to claim 6, characterized in that, The clamping block (17) is provided with a support rod (16) at one end near the milling cutter (14), and a guide wheel (15) is provided on the side wall of the support rod (16) away from the clamping block (17).

8. The on-site repair fixture for the cylinder body of a hydro-generator set according to claim 7, characterized in that, The height of the lowest plane of the guide wheel (15) is flush with the lowest plane of the milling cutter (14).

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