A generator wire bar removal assist device

Abstract

A kind of generator wire rod dismantling auxiliary device. At present, large generator set stator wire rod is dismantled by finding support point on site, and is pulled out by prying with crowbar. It is not easy to find suitable crowbar support point by using this method, and other normal wire rod and stator core are easily damaged in the process of using crowbar. The utility model comprises: operation box, the operation box is connected with two rotating shafts through bearing, each rotating shaft is fixed with one end of rotating lever frame, the other end of rotating lever frame is slidably connected with pad frame, the shell of operation box is fixed with two tail jacks, tail cross pad is fixed on each tail jack, worm wheel is fixed on rotating shaft, transversely arranged worm is connected on operation box through bearing, worm wheel is engaged with worm. The utility model is used for generator wire rod dismantling.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for removing generator lead bars. Background Technology

[0002] Currently, the removal of stator bars in large generator sets is mostly done by finding support points on site and using a crowbar to pry them open from the top and bottom, pulling them out. This method makes it difficult to find suitable support points for the crowbar, and it is easy to damage other normal bars and the stator core during the crowbar operation. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems and provide an auxiliary device for removing generator lead bars.

[0004] The above objectives are achieved through the following technical solutions: A generator rod removal auxiliary device comprises an operation box, which is connected to two rotating shafts via bearings. Each rotating shaft is fixed to one end of a rotating rod frame, and the other end of the rotating rod frame is slidably connected to a pad frame. Two tail top frames are fixed on the outer shell of the operation box, and a tail cross pad is fixed on each tail top frame. A worm gear is fixed on the rotating shaft, and a worm is connected to the operating box via a bearing. The worm gear meshes with the worm.

[0005] The generator rod removal auxiliary device includes a support frame comprising two first horizontal pads, which are connected and fixed together by a connecting plate.

[0006] The generator rod removal auxiliary device has a hanging ring fixed on the outer shell of the control box, and a hand chain hoist is hung on the hanging ring. Beneficial effects

[0007] 1. This utility model is placed inside the generator chamber, and is supported by the pad and the tail cross pad respectively against the generator stator core. The bar can be pulled out by a hand chain hoist, which improves the efficiency of bar removal and prevents damage to the generator stator core.

[0008] 2. Rubber pads are fixed on the pad frame and the tail pad of this utility model, so that the device comes into contact with the stator core and plays a protective role, preventing damage to the stator core.

[0009] 3. The distance between the tail plate and the support frame of this utility model can be adjusted to accommodate generators of different sizes. Attached Figure Description

[0010] Appendix Figure 1 This is the front view of this utility model; Appendix Figure 2 This is a side view of the present invention; Appendix Figure 3 This is a top view of the present invention; Appendix Figure 4 It is attached Figure 1 Sectional view of section AA; Appendix Figure 5 It is attached Figure 1 A cross-sectional view of the CC section; Appendix Figure 6 It is attached Figure 3 BB section sectional view; Appendix Figure 7 It is attached Figure 5 Enlarged view of part D; Appendix Figure 8 This is a schematic diagram of the structure of this utility model in use; In the diagram: 1. Connecting plate; 2. First horizontal pad; 3. Rotating rod frame; 4. Control box; 5. Hand chain hoist; 6. Tail top frame; 7. Tail horizontal pad; 8. Sliding hole; 9. Pulley; 10. Limiting rod; 11. Worm gear; 12. Worm body; 13. Hanging ring; 14. Rotating shaft; 15. Generator chamber; 16. Stator core; 17. Wire rod; 18. Rubber pad; 19. Wheel axle; 20. Worm sleeve; 21. Operating shaft. Detailed Implementation

[0011] Reference Figures 1-7 A generator lead bar removal auxiliary device comprises an operation box 4, which is connected to two rotating shafts 14 via bearings. The two rotating shafts are arranged vertically, and their ends are connected to the operation box via bearings. Each rotating shaft is fixed to one end of a rotating rod frame 3, and the other end of the rotating rod frame is slidably connected to a pad frame. A wheel axle 19 is fixed to the end of the rotating rod frame, and pulleys 9 are fixed to both ends of the wheel axle. The pulleys are embedded in the sliding holes 8 of the pad frame. Two tail top frames 6 are fixed to the outer shell of the operation box, and a tail cross pad 7 is fixed to each tail top frame. Each head transverse pad and each tail transverse pad of the pad frame is fixed with a rubber pad 18, which makes the device contact the stator core and play a protective role, preventing damage to the stator core. A worm gear 11 is fixed on the rotating shaft, and a worm body 12 arranged laterally is connected to the operating box via a bearing. The worm gear meshes with the worm body.

[0012] The worm wheel is fixed to the shaft. The worm body 12 includes two worm sleeves 20 and an operating shaft 21. Two worm sleeves are fixed on the operating shaft. The threads of the two worm sleeves are opposite. Each worm sleeve meshes with the worm wheel at the corresponding location. The generator rod removal auxiliary device includes a pad frame comprising two first horizontal pads 2, which are connected and fixed by a connecting plate 1. A limit rod 10 is fixed on the connecting plate and passes through a round hole in the control box. By setting the limit rod, the pad frame can be prevented from moving on its own when adjusting its position. The generator rod removal auxiliary device has a hanging ring 13 fixed on the outer shell of the control box, and a hand chain hoist 5 is hung on the hanging ring.

[0013] Working principle: Refer to Figure 8 When in use, lift the device and place it inside the generator chamber 15. Then, one person holds the operating shaft and rotates it. The worm gear sleeve on the operating shaft meshes with the worm wheel, causing the worm wheel to rotate and the rotating rod frame to rotate. The two rotating rod frames rotate synchronously in opposite directions, which can adjust the position of the pad frame. Adjust it so that the pad frame is pressed against the stator core 16, and the tail transverse pad plate is pressed against the stator core at the corresponding position in the generator chamber. This allows the device to be installed. After installation, tie the rod 17 with the strap, and then pull the strap with the hook of the hand chain hoist 5 to pull out the rod, improving the efficiency of rod removal and preventing damage to the generator stator core.

Claims

1. An auxiliary device for removing generator lead bars, characterized in that: Its components include an operating box, which is connected to two rotating shafts via bearings. Each rotating shaft is fixed to one end of a rotating rod frame, and the other end of the rotating rod frame is slidably connected to a pad frame. Two tail top frames are fixed on the outer shell of the operating box, and a tail cross pad is fixed on each tail top frame. A worm gear is fixed on the rotating shaft, and a worm is connected to the operating box via a bearing. The worm gear meshes with the worm.

2. The generator lead bar removal auxiliary device according to claim 1, characterized in that: The pad frame includes two first horizontal pads, which are connected and fixed together by a connecting plate.

3. The generator lead bar removal auxiliary device according to claim 2, characterized in that: A hanging ring is fixed on the outer shell of the control box, and a hand-operated hoist is hung on the hanging ring.

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