A generator magnetic pole hoisting and turning-over tool

Abstract

The utility model discloses a generator magnetic pole hoisting and turning-over tool, solves the problem of great manpower demand and easy magnetic pole falling out when magnetic pole hoisting and turning-over. The tool is rectangular frame structure, including end seat and connecting plate, and end seat and connecting plate are detachably connected, and end seat is equipped with lifting ring opening and limiting structure, and limiting structure contains hinged baffle, angle adjusting bolt and flexible cushion layer, and flexible cushion plate and connecting box are fixed respectively in the middle part inside and outside of connecting plate, and connecting band is connected between two connecting plates. When using, the tool is sleeved with the magnetic pole, and the end seat clamps the two ends of the magnetic pole, and is hoisted through the lifting ring, and the end seat can be used as turning-over support to prevent the magnetic pole from falling off. The tool is stable in connection, can safely turn over and lay down the magnetic pole, greatly improves work efficiency, and hoisting time is shortened from 2 hours to 1 hour.

Description

Technical Field

[0001] This utility model relates to the technical field of magnetic pole turning devices, and in particular to a generator magnetic pole hoisting and turning tool. Background Technology

[0002] The existing method for lifting and lowering the rotor poles of a hydro-generator unit is as follows: A set of pole-pulling fixtures provided by the manufacturer is used. First, the lifting plate of the fixture is placed on the pole, and the stabilizing hook on the lifting plate is hooked onto the back of the pole. Then, the frame of the fixture is carried into the downwind tunnel by 10 people and erected. Two nylon ropes are placed through the gap between the rotor poles and tied to the bolts on the frame. The frame is then passed through the bolt holes on the lifting plate from the side of the rotor pole from bottom to top and tightened with screws, so that the entire fixture secures the rotor pole. A wire rope shackle is connected to the lifting lugs on the lifting plate, and the rotor pole is pulled out of the rotor yoke. When one-third of the pole has been pulled out, the pole is tied to the fixture with a waist rope using nylon rope. The pole is then slowly lifted out. During the pole-lowering process, a sleeper is placed under the lifted pole so that when the pole lands on the edge of the sleeper, the pole itself tilts, thus lowering the pole.

[0003] The original plan, during implementation, required a large amount of manpower to lift and move the 250kg tooling, which was time-consuming and labor-intensive. Furthermore, when lowering the magnetic poles after lifting, the bottom of the tooling frame lacked a mechanism for tipping over, making it easy for the lower end of the magnetic poles to detach from the frame, causing them to fall and severely damage the poles. This operation method posed safety risks due to tooling defects, primarily during the tipping and lowering process. To save time and effort, ensure safety and reliability during lifting, and improve operational efficiency, a new specialized tool for magnetic pole lifting was developed. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that the magnetic poles are heavy, and the hoisting and turning process requires manual lifting. Furthermore, the magnetic poles are prone to detach from the tooling during the turning process, causing damage to the magnetic poles and posing a safety hazard.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a generator magnetic pole hoisting and turning tool, which has a rectangular frame structure, including end seats at both ends and connecting plates distributed on both sides. The connecting plates and end seats are respectively connected to the side walls and end walls of the magnetic pole. The connecting plates and end seats are detachably connected. The end seats have openings for connecting lifting rings. A strap is connected between the middle of the two connecting plates.

[0006] Preferably, the end seat includes a mounting plate, a support plate vertically fixed to the outside of the mounting plate, and a limiting structure for the magnetic pole arranged inside the mounting plate.

[0007] Preferably, the limiting structure includes a limiting hook fixed on the mounting plate, and the limiting hook contacts the bottom side of the magnetic pole.

[0008] Preferably, the mounting plate is further connected with stiffening plates, which are arranged perpendicular to the support plate and are located on both sides of the support plate.

[0009] Preferably, the stiffening rib extends through the mounting plate, and the stiffening rib segment extending through the mounting plate is fixedly connected to the limiting hook.

[0010] Preferably, a sleeve is coaxially fixedly connected to the end of the connecting plate, and a screw is fixedly connected inside the sleeve. The movable end of the screw passes through the end of the end seat, and the end seat is locked onto the screw by a nut.

[0011] Preferably, a pad that fits against the magnetic pole is fixedly connected to the inner side of the middle part of the connecting plate.

[0012] Preferably, the pad is a flexible plate.

[0013] This utility model provides a generator magnetic pole hoisting and turning tool, which has the following beneficial effects.

[0014] The turning tool is attached to the magnetic pole and connected to both sides of the magnetic pole via a connecting plate. The end seats are locked to the connecting plate, and then the two end seats clamp the two ends of the magnetic pole to ensure the stability of the connection between the turning tool and the magnetic pole. The end of the magnetic pole is limited by a limit hook. Then, the end seats are hoisted by a large hook to lift the magnetic pole. At the same time, the end seats can be used to support the magnetic pole when turning it over, which can ensure that the magnetic pole will not fall off when it is turned over and laid down. This also greatly improves work efficiency, reducing the lifting time from 2 hours to 1 hour. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the end seat in an embodiment of the present utility model.

[0018] In the diagram: 1. Connecting plate; 2. Screw; 3. End seat; 4. Magnetic pole; 5. Mounting plate; 6. Nut; 7. Support plate; 10. Pad; 11. Binding strap; 12. Rib plate. Detailed Implementation

[0019] like Figure 1 and Figure 2As shown, this utility model provides a generator magnetic pole hoisting and turning tool, which has a rectangular frame structure, including end seats 3 at both ends and connecting plates 1 distributed on both sides. The connecting plates 1 and the end seats 3 are respectively connected to the side wall and end wall of the magnetic pole 4. The connecting plates 1 and the end seats 3 are detachably connected. The end seats 3 have openings for connecting lifting rings. The two connecting plates 1 are connected by a strap 11 between the middle parts.

[0020] When hoisting the magnetic pole 4, first connect the turning tool to the hook, remove the end seat 3 at the bottom of the turning tool, hoist the turning tool through the hook, pass the turning tool through the magnetic pole from top to bottom, then connect the bottom end seat 3 to the turning tool, and lock the end seat 3 with the nut. After the turning tool clamps the magnetic pole 4, the magnetic pole can be lifted by the turning tool. When turning the magnetic pole 4, use the bottom end seat 3 as a support to lay the magnetic pole 4 down. During the laying process, the turning tool is in contact with the ground.

[0021] like Figure 1 and Figure 2 As shown. The end seat 3 includes a mounting plate 5, a support plate 7 vertically fixed to the outside of the mounting plate 5, and a limiting structure for the magnetic pole 4 arranged inside the mounting plate 5. The end seat 3 is based on the mounting plate 5, and the support plate 7 is provided on the mounting plate 5. When the magnetic pole 4 is turned over, the support plate 7 is used to contact the ground. At the same time, the support plate 7 is used to enhance the shear resistance of the mounting plate 5 and prevent the mounting plate 5 from bending when hoisting the magnetic pole 4.

[0022] like Figure 1 and Figure 2 As shown. The limiting structure includes a limiting hook fixed to the mounting plate 5, which contacts the bottom side of the magnetic pole 4. The limiting hook limits the front and back sides of the magnetic pole 4, improving the stability of clamping the magnetic pole 4.

[0023] like Figure 1 and Figure 2 As shown. The mounting plate 5 is also connected to stiffening plates 12, which are perpendicular to the support plate 7 and arranged on both sides of the support plate 7. Support plates 7 are provided on both sides of the mounting plate 5, and the two support plates 7 are connected by two stiffening plates 12. The stiffening plates 12 are used to improve the stability of the support plates 7; the bottom end of the stiffening plate 12 is chamfered, which makes the process of lowering the magnetic pole 4 smoother.

[0024] like Figure 1 and Figure 2 As shown. The stiffening rib 12 penetrates the mounting plate 5, and the section of the stiffening rib 12 penetrating the mounting plate 5 is fixedly connected to the limiting hook. The through-hole connection of the stiffening rib 12 to the limiting hook increases the connection area of ​​the fixed end of the limiting hook and improves the stability of the limiting hook.

[0025] like Figure 1 As shown, a sleeve is coaxially fixed to the end of the connecting plate 1, and a screw 2 is fixedly connected inside the sleeve. The movable end of the screw 2 passes through the end of the end seat 3, and the end seat 3 is locked onto the screw 2 by a nut 6. By inserting the end seat 3 onto the screw 2 and tightening it with the nut 6, the end seat 3 is tightly fitted onto the end of the magnetic pole 4, which not only provides stable clamping of the magnetic pole 4 but also facilitates the assembly and disassembly of the connecting plate 1 and the end seat 3.

[0026] like Figure 1 As shown. A pad 10, which fits against the magnetic pole 4, is fixedly connected to the inner side of the middle part of the connecting plate 1. A sleeve is provided at the end of the connecting plate 1, which increases the thickness of the end of the connecting plate 1. When the connecting plate 1 clamps the side of the magnetic pole 4, the binding strap 11 binds the connecting plate 1 and the magnetic pole 4, which will cause the middle part of the connecting plate 1 to bend to a certain extent. However, by adding the pad 10, a tight fit can be ensured, and the pad 10 can reduce the bending of the middle part of the connecting plate 1 during the binding process, avoiding metal fatigue caused by long-term bending of the connecting plate 1.

[0027] As a preferred embodiment of this utility model, the pad 10 is a flexible plate. The pad 10 is made of 15mm thick neoprene rubber sheet, and a cross-shaped anti-slip groove is formed on the surface of the pad 10 to increase the coefficient of friction with the surface of the magnetic pole 4.

Claims

1. A generator magnetic pole hoisting and turning tool, characterized in that: It has a rectangular frame structure, including end seats (3) at both ends and connecting plates (1) distributed on both sides. The connecting plates (1) and end seats (3) are respectively connected to the side wall and end wall of the magnetic pole (4). The connecting plates (1) and end seats (3) are detachably connected. The end seats (3) have openings for connecting lifting rings. The two connecting plates (1) are connected by a strap (11) in the middle.

2. The generator magnetic pole hoisting and turning tool as described in claim 1, characterized in that: The end seat (3) includes a mounting plate (5), a support plate (7) vertically fixed to the outside of the mounting plate (5), and a limiting structure for the magnetic pole (4) arranged inside the mounting plate (5).

3. The generator magnetic pole hoisting and turning tool as described in claim 2, characterized in that: The limiting structure includes a limiting hook fixed on the mounting plate (5), and the limiting hook contacts the bottom side of the magnetic pole (4).

4. The generator magnetic pole hoisting and turning tool as described in claim 3, characterized in that: The mounting plate (5) is also connected to a stiffening plate (12), which is set perpendicular to the support plate (7) and arranged on both sides of the support plate (7).

5. The generator magnetic pole hoisting and turning tool as described in claim 4, characterized in that: The stiffening plate (12) penetrates the mounting plate (5), and the stiffening plate (12) segment penetrating the mounting plate (5) is fixedly connected to the limiting hook.

6. The generator magnetic pole hoisting and turning tool as described in claim 1, characterized in that: The end of the connecting plate (1) is coaxially fixedly connected to a sleeve, and a screw (2) is fixedly connected inside the sleeve. The movable end of the screw (2) passes through the end of the end seat (3), and the end seat (3) is locked onto the screw (2) by a nut (6).

7. The generator magnetic pole hoisting and turning tool as described in claim 1, characterized in that: A pad (10) that fits against the magnetic pole (4) is fixedly connected to the inner side of the middle part of the connecting plate (1).

8. The generator magnetic pole hoisting and turning tool as described in claim 7, characterized in that: The pad (10) is a flexible plate.

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