Transformer coil unhooking tool

Abstract

The utility model belongs to tooling technical field, concretely relates to transformer coil unhooking tooling, including lower support frame, the upper end of lower support frame is hinged with upper support frame, the inside rotation of lower support frame is connected with support shaft, the outside fixed connection of support shaft has handle, handle and lower support frame rotation is connected, the front end fixed connection of support shaft has support disc, the inside slide connection of support disc has clamping block, the inside of support disc is provided with top spring, be provided with reset mechanism on lower support frame. The utility model discloses through the spring action on guide block, and through the spring to the elastic support of top block, and further make top block slide relative upper support frame, and further make upper support frame rotate after convenient reset.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, specifically to a tooling for lifting and unloading transformer coils. Background Technology

[0002] The transformer coil is a crucial component of the transformer's internal structure. Its function is to convert high voltage input from the power grid into low voltage through electromagnetic induction. After the transformer coil is wound, it needs to be hoisted and slowly fitted onto the transformer core using hoisting equipment. Together with the core, they form the transformer body. Therefore, the quality of the coil installation directly determines the transformer's operational quality after commissioning. To ensure that the lifting hook can be easily and smoothly removed after the transformer coil is installed, a special hoisting tool is needed to lift and install the coil. When the transformer coil is on the core, it first rests on the transformer coil unloading hook fixture. Then, the hook is removed, and the fixture is gently rotated to allow the coil to slowly descend until it lands on the core. The fixture is then pulled out from the bottom of the coil. Because the support frame of the unloading hook fixture is rotatable, it is angled after rotation, making it easy to pull out from the bottom of the coil. This prevents damage to the insulation layer at the coil end from the hook, thus improving the coil assembly quality. However, in the existing technology, it is inconvenient to limit the movement during handle rotation, and the upper support frame is difficult to reset after rotation. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide a tooling for unloading and lifting transformer coils, which solves the problems in the prior art where it is inconvenient to limit the movement of the handle during rotation, and it is inconvenient to reset the upper support frame after rotation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a transformer coil unloading hook fixture, including a lower support frame, an upper support frame hinged to the upper end of the lower support frame, a support shaft rotatably connected inside the lower support frame, a handle fixedly connected to the outer side of the support shaft, the handle and the lower support frame rotatably connected, a support disc fixedly connected to the front end of the support shaft, a locking block slidably connected inside the support disc, a top spring provided inside the support disc, and a reset mechanism provided on the lower support frame.

[0005] Preferably, the lower support frame has a slot inside, and the slot and the locking block are slidably connected. By setting the slot and the locking block to cooperate, the support plate and the lower support frame are limited in position.

[0006] Preferably, one end of the top spring is fixedly connected to the support plate, and the other end of the top spring is fixedly connected to the locking block. By setting the top spring, the locking block can be easily reset.

[0007] Preferably, the reset mechanism includes a guide block, a guide block slidably connected inside the lower support frame, a guide rod fixedly connected inside the lower support frame, the guide rod and the guide block being slidably connected, a spring being provided on the outer side of the guide rod, a guide cylinder being fixedly connected to the upper end of the guide block, a top block being slidably connected inside the guide cylinder, the top block being slidably connected to the upper support frame, and a compression spring being provided inside the guide cylinder. The spring acts on the guide block, and the compression spring provides elastic support to the top block, thereby allowing the top block to slide relative to the upper support frame, thus facilitating reset after the upper support frame rotates.

[0008] Preferably, one end of the spring is fixedly connected to the guide block, and the other end of the spring is fixedly connected to the lower support frame. By setting the spring, the guide block is elastically supported.

[0009] Preferably, a sliding pin is fixedly connected to the surface of the top block, and the sliding pin is slidably connected to the guide cylinder. The top block is supported by the sliding pin.

[0010] Preferably, one end of the compression spring is fixedly connected to the guide cylinder, and the other end of the compression spring is fixedly connected to the top block. By providing the compression spring, the top block can be easily reset.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model allows the handle to be disengaged from the upper support frame by rotating the handle, thereby causing the upper and lower support frames to deflect relative to each other, making it easier for the coil to slide off the upper support frame. This makes it convenient for the device to support and unload the coil, and the top spring acts on the locking block to make it easy to limit the movement of the handle during rotation.

[0013] 2. This utility model uses a spring to act on the guide block and a compression spring to elastically support the top block, thereby allowing the top block to slide relative to the upper support frame, which in turn makes it easy for the upper support frame to reset after rotation. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A partial structural sectional view;

[0016] Figure 3 This utility model Figure 1 A sectional view of the lower support frame;

[0017] Figure 4 This utility model Figure 3 A cross-sectional view of the guide tube.

[0018] In the diagram: 1. Lower support frame; 2. Upper support frame; 3. Support shaft; 4. Handle; 5. Support plate; 6. Locking block; 7. Top spring; 8. Reset mechanism; 81. Guide block; 82. Guide rod; 83. Spring; 84. Guide cylinder; 85. Top block; 86. Sliding pin; 87. Compression spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-2 A transformer coil unloading hook fixture includes a lower support frame 1, an upper support frame 2 hinged to the upper end of the lower support frame 1, a support shaft 3 rotatably connected inside the lower support frame 1, a handle 4 fixedly connected to the outer side of the support shaft 3, the handle 4 and the lower support frame 1 rotatably connected, a support plate 5 fixedly connected to the front end of the support shaft 3, a locking block 6 slidably connected inside the support plate 5, a locking groove opened inside the lower support frame 1, the locking groove and the locking block 6 slidably connected, the locking groove and the locking block 6 cooperate to limit the position of the support plate 5 and the lower support frame 1, a top spring 7 is set inside the support plate 5, one end of the top spring 7 is fixedly connected to the support plate 5, and the other end of the top spring 7 is fixedly connected to the locking block 6, the top spring 7 makes it easy for the locking block 6 to reset, and a reset mechanism 8 is set on the lower support frame 1.

[0021] Please see Figure 1 , Figure 3 , Figure 4The reset mechanism 8 includes a guide block 81. The guide block 81 is slidably connected inside the lower support frame 1, and a guide rod 82 is fixedly connected inside the lower support frame 1. The guide rod 82 and the guide block 81 are slidably connected. A spring 83 is provided on the outside of the guide rod 82. One end of the spring 83 is fixedly connected to the guide block 81, and the other end of the spring 83 is fixedly connected to the lower support frame 1. By providing the spring 83, the guide block 81 is elastically supported. A guide cylinder 84 is fixedly connected to the upper end of the guide block 81. A top block 85 is slidably connected inside the guide cylinder 84, and the top block 85 is slidably connected to the upper support frame 2. A sliding pin 86 is fixedly connected to the surface of the top block 85. The sliding pin 86 is slidably connected to the guide cylinder 84. The top block 85 is supported by the sliding pin 86. A compression spring 87 is provided inside the guide cylinder 84. One end of the compression spring 87 is fixedly connected to the guide cylinder 84, and the other end of the compression spring 87 is fixedly connected to the top block 85. The compression spring 87 makes it easy for the top block 85 to reset. The spring 83 acts on the guide block 81, and the compression spring 87 provides elastic support for the top block 85, thereby allowing the top block 85 to slide relative to the upper support frame 2, which in turn makes it easy for the upper support frame 2 to reset after rotation.

[0022] The specific implementation process of this utility model is as follows: After the transformer coil is lifted, it first falls onto the device. The coil unloading hook tool handle 4 is rotated. During this process, the top spring 7 acts on the locking block 6, making it easy for the locking block 6 to engage and disengage with the locking groove on the lower support frame 1. This makes it easy to limit the rotation of the handle 4. The upper support frame 2 of the coil flips downward. The upper support frame 2 flips and presses the top block 85, causing the top block 85 to slide inside the guide cylinder 84. This causes the top block 85 to press the spring 83. The spring 83 acts on the guide block 81, and the compression spring 87 provides elastic support for the top block 85. This causes the top block 85 to slide relative to the upper support frame 2, making it easy for the upper support frame 2 to reset after rotation. The coil falls, and the device is gently pulled out. The coil falls onto the transformer core.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling for lifting and unloading transformer coils, including a lower support frame (1), characterized in that: The upper end of the lower support frame (1) is hinged to the upper support frame (2). The lower support frame (1) is rotatably connected to the inside of the lower support frame (1). The outside of the support shaft (3) is fixedly connected to the handle (4). The handle (4) and the lower support frame (1) are rotatably connected. The front end of the support shaft (3) is fixedly connected to the support plate (5). The inside of the support plate (5) is slidably connected to the locking block (6). The inside of the support plate (5) is provided with a top spring (7). The lower support frame (1) is provided with a reset mechanism (8).

2. The transformer coil lifting hook fixture according to claim 1, characterized in that: The lower support frame (1) has a slot inside, and the slot and the block (6) are slidably connected.

3. The transformer coil lifting hook fixture according to claim 1, characterized in that: One end of the top spring (7) is fixedly connected to the support plate (5), and the other end of the top spring (7) is fixedly connected to the locking block (6).

4. The transformer coil lifting hook fixture according to claim 1, characterized in that: The reset mechanism (8) includes a guide block (81), the guide block (81) is slidably connected inside the lower support frame (1), the guide rod (82) is fixedly connected inside the lower support frame (1), the guide rod (82) and the guide block (81) are slidably connected, a spring (83) is provided on the outside of the guide rod (82), a guide cylinder (84) is fixedly connected to the upper end of the guide block (81), a top block (85) is slidably connected inside the guide cylinder (84), the top block (85) and the upper support frame (2) are slidably connected, and a compression spring (87) is provided inside the guide cylinder (84).

5. The transformer coil unloading hook fixture according to claim 4, characterized in that: One end of the spring (83) is fixedly connected to the guide block (81), and the other end of the spring (83) is fixedly connected to the lower support frame (1).

6. The transformer coil lifting hook fixture according to claim 4, characterized in that: The surface of the top block (85) is fixedly connected to a sliding pin (86), and the sliding pin (86) and the guide tube (84) are slidably connected.

7. The transformer coil lifting hook fixture according to claim 4, characterized in that: One end of the compression spring (87) is fixedly connected to the guide cylinder (84), and the other end of the compression spring (87) is fixedly connected to the top block (85).

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