Transformer coil hoisting clamp
By designing a transformer coil lifting fixture with staggered fixed arms and booms, the problem of instability in traditional lifting fixtures was solved, achieving stability and safety of the coil during the lifting process and ensuring precise positioning and installation.
Patent Information
- Application Number
- CN202423322367.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional lifting clamps are prone to slippage and rotation when lifting transformer coils, which can affect installation accuracy and may damage the equipment.
Design a transformer coil lifting fixture that includes staggered fixed arms and booms. The booms lift the coils and the mounting arms secure them, ensuring that the coils remain horizontal during lifting.
This improves the stability and safety of coil hoisting, ensures more precise positioning and installation, reduces instability such as sliding and rotation, and enhances operational safety.
Smart Images

Figure CN223866176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting fixture technology, specifically to a transformer coil lifting fixture. Background Technology
[0002] During the manufacturing and installation of power equipment, it is usually necessary to use lifting equipment to lift the coil and move it to the designated location for installation.
[0003] Traditionally, when hoisting transformer coils, there are usually no specially designed hoisting clamps; instead, ropes are used for securing them. While this meets the basic requirements for coil hoisting to some extent, the coil is prone to slippage, rotation, and other instability during hoisting, increasing the difficulty of installation. It is also difficult to keep the coil precisely level during hoisting, affecting subsequent installation accuracy and potentially causing collisions between the coil and other transformer components, damaging the equipment. Utility Model Content
[0004] The purpose of this invention is to provide a transformer coil hoisting clamp to solve the above-mentioned problems.
[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a transformer coil hoisting clamp, including a bracket with multiple fixed arms, a hoisting part on the upper part of the bracket, and a hoisting arm connected to the fixed arm in a ring and capable of working together to hoist the coil. The fixed arm is also connected to an installation arm corresponding to the number of hoisting arms and capable of fixing the coil when it is installed on the hoisting arm.
[0006] As a further optimization of this utility model, the fixed arm includes a first fixed arm and a second fixed arm arranged in an alternating manner; the lifting part includes an extension plate provided on the upper part of the first fixed arm, and the extension plate has a lifting hole.
[0007] As a further optimization of this utility model, a first reinforcing plate is connected to the upper part of the first fixed arm along the length direction of the first fixed arm, an avoidance groove is opened on the upper part of the second fixed arm for the first reinforcing plate to pass through, a second reinforcing plate is connected to the upper part of the second fixed arm along the length direction of the second fixed arm, and the second reinforcing plate is disposed through the lifting hole.
[0008] As a further optimization of this utility model, the lower part of the first fixing arm has a first slot, and the upper part of the second fixing arm has a second slot that can be inserted and cooperated with the first slot.
[0009] As a further optimization of this utility model, the first fixed arm and the second fixed arm are provided with a plurality of mounting holes for mounting the boom and the mounting arm. The mounting holes on the first fixed arm are arranged along the length direction of the first fixed arm, and the mounting holes on the second fixed arm are arranged along the length direction of the second fixed arm.
[0010] As a further optimization of this utility model, the bracket is welded together from a first fixed arm, a second fixed arm, a first reinforcing plate, and a second reinforcing plate.
[0011] As a further optimization of this utility model, the lower part of the mounting arm is provided with a socket, and the socket is connected to a pin.
[0012] As a further optimization of this utility model, the boom includes a connecting plate and a support plate disposed at the lower end of the connecting plate, and the lower part of the connecting plate is provided with a thickened part.
[0013] Compared with the prior art, the present invention has the following advantages: the coil is lifted by the boom and fixed by the mounting arm, thereby ensuring that the coil remains horizontal during lifting. This helps to more accurately position and install the coil, while reducing instability such as slippage and rotation of the coil, thereby improving the safety of operation. Attached Figure Description
[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:
[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0016] Figure 2 This is a three-dimensional schematic diagram of the first fixed arm in this utility model;
[0017] Figure 3 This is a three-dimensional schematic diagram of the second fixed arm in this utility model. Detailed Implementation
[0018] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0019] like Figures 1 to 3 As shown, this utility model discloses a transformer coil hoisting fixture, characterized in that it includes a bracket 1 with multiple fixed arms 11, a hoisting part 2 on the upper part of the bracket 1, and hoisting arms 3 that are arranged in a ring and can cooperate to hoist the coil on the fixed arms 11. The fixed arms 11 are also connected to mounting arms 4 that correspond to the number of hoisting arms 3 and can fix the coil when it is installed on the hoisting arms 3.
[0020] The lifting joint 2 is located on the upper part of the support 1, serving as an interface for connecting to a crane or other lifting equipment. The circular arrangement of the booms 3 helps maintain the stability of the coil during lifting, preventing tilting or rotation. After the coil is placed on the boom 3, the mounting arm 4 secures the coil, preventing it from sliding or rotating, ensuring the stability and safety of the coil throughout the lifting process. Lifting the coil via the boom 3 and securing it with the mounting arm 4 ensures that the coil remains horizontal during lifting. This facilitates more precise positioning and installation of the coil, while reducing instability such as slippage or rotation, thereby improving operational safety.
[0021] The fixed arm 11 includes a first fixed arm 111 and a second fixed arm 112 arranged in an alternating manner; the lifting part 2 includes an extension plate 21 provided on the upper part of the first fixed arm 111, and the extension plate 21 has a lifting hole 22.
[0022] The extension plate 21 extends upward from the first fixed arm 111, and is connected to lifting tools such as hooks of cranes or other lifting equipment by providing lifting holes 22 on the extension plate 21.
[0023] A first reinforcing plate 13 is connected to the upper part of the first fixed arm 111 along the length direction of the first fixed arm 111. An avoidance groove 121 for the first reinforcing plate 13 to pass through is opened on the upper part of the first fixed arm 112. A second reinforcing plate 14 is connected to the upper part of the first fixed arm 112 along the length direction of the first fixed arm 112. The second reinforcing plate 14 is disposed through the lifting hole 22.
[0024] The rigidity and strength of each support arm are improved by the first reinforcing plate 13 and the second reinforcing plate 14, thereby increasing the maximum load-bearing capacity of the entire fixture. The clearance groove 113 allows the first fixed arm 111 and the first fixed arm 112 to be staggered, improving space utilization. The second reinforcing plate 14 passes through the lifting hole 22, enhancing the stability and reliability of the lifting part.
[0025] The lower part of the first fixing arm 111 has a first slot 114, and the upper part of the first fixing arm 112 has a second slot 115 that can be inserted and engaged with the first slot 114.
[0026] The interaction between the first slot 114 and the second slot 115 increases the rigidity of the connection point between the first fixed arm 111 and the first fixed arm 112, ensuring the integrity and stability of the structure.
[0027] The first fixed arm 111 and the first fixed arm 112 have a plurality of mounting holes 5 for mounting the boom 3 and the mounting arm 4. The mounting holes 5 on the first fixed arm 111 are arranged along the length of the first fixed arm 111, and the mounting holes 5 on the first fixed arm 112 are arranged along the length of the first fixed arm 112.
[0028] By selecting different mounting holes 5 for installation, the positions of the boom 3 and mounting arm 4 can be flexibly adjusted to accommodate transformer coils of different sizes and shapes, thus improving the versatility of the fixture.
[0029] The bracket 1 is welded together from the first fixed arm 111, the first fixed arm 112, the first reinforcing plate 13, and the second reinforcing plate 14.
[0030] In one embodiment, when assembling the bracket 1, the first fixing arm 111 and the first fixing arm 112 are first connected to the second slot 115 through the first slot 114. Then, the first reinforcing plate 13 is set through the clearance slot 121, and the second reinforcing plate 14 is set through the lifting hole 22. Finally, the four are welded together to form the bracket 1. By welding the first fixing arm 111, the first fixing arm 112, the first reinforcing plate 13, and the second reinforcing plate 14 to form the bracket 1, the overall rigidity of the structure is improved, ensuring stability during the lifting process.
[0031] The lower part of the mounting arm 4 is provided with a socket 41, and a pin 42 is connected to the socket 41.
[0032] The coil is connected to a specialized lifting lug or metal bracket. These components have sockets that match the pin 42. By inserting the pin 42 into the corresponding socket, it is secured during lifting. After the coil is installed, the pin 42 is removed to allow the clamp to be removed. Inserting the pin 42 into the corresponding socket increases the connection strength between the mounting arm 4 and the coil, preventing the coil from slipping or rotating during lifting, reducing the risk of accidental loosening, and ensuring the safety and stability of the operation.
[0033] The boom 3 includes a connecting plate 31 and a support plate 32 located at the lower end of the connecting plate 31. The lower part of the connecting plate 31 is provided with a thickened part 311.
[0034] The support plate 32 is located at the lower end of the connecting plate 31 and is used to directly contact and support the suspended object. The lower part of the connecting plate 31 is one of the parts that bears greater stress. By providing a thickened part 311 at the lower part of the connecting plate 31, the ability to resist deformation can be effectively improved.
Claims
1. A transformer coil hoisting clamp, characterized in that, The bracket (1) includes a support (1) with multiple fixed arms (11), the upper part of the support (1) is provided with a lifting part (2), the fixed arms (11) are connected to lifting arms (3) that are arranged in a ring and can cooperate to lift the coil, and the fixed arms (11) are also connected to mounting arms (4) that correspond to the number of lifting arms (3) and can fix the coil when the coil is installed on the lifting arms (3). The fixed arm (11) includes a first fixed arm (111) and a second fixed arm (112) arranged in an alternating manner; the lifting part (2) includes an extension plate (21) provided on the upper part of the first fixed arm (111), and the extension plate (21) has a lifting hole (22). A first reinforcing plate (13) is connected to the upper part of the first fixed arm (111) along the length direction of the first fixed arm (111). A clearance groove (113) is opened on the upper part of the second fixed arm (112) for the first reinforcing plate (13) to pass through. A second reinforcing plate (14) is connected to the upper part of the second fixed arm (112) along the length direction of the second fixed arm (112). The second reinforcing plate (14) is set through the lifting hole (22).
2. The transformer coil hoisting clamp according to claim 1, characterized in that, The lower part of the first fixing arm (111) has a first slot (114), and the upper part of the second fixing arm (112) has a second slot (115) that can be inserted and engaged with the first slot (114).
3. A transformer coil hoisting clamp according to claim 2, characterized in that, The first fixed arm (111) and the second fixed arm (112) have a plurality of mounting holes (5) for mounting the boom (3) and the mounting arm (4). The mounting holes (5) on the first fixed arm (111) are arranged along the length of the first fixed arm (111), and the mounting holes (5) on the second fixed arm (112) are arranged along the length of the second fixed arm (112).
4. A transformer coil hoisting clamp according to claim 3, characterized in that, The bracket (1) is welded together from the first fixed arm (111), the second fixed arm (112), the first reinforcing plate (13), and the second reinforcing plate (14).
5. A transformer coil hoisting clamp according to claim 1, characterized in that, The lower part of the mounting arm (4) is provided with a socket (41), and the socket (41) is connected to a pin (42).
6. A transformer coil hoisting clamp according to claim 1, characterized in that, The boom (3) includes a connecting plate (31) and a support plate (32) located at the lower end of the connecting plate (31). The lower part of the connecting plate (31) is provided with a thickened part (311).