A transformer hoisting fixing device

Abstract

The utility model discloses a kind of transformer hoisting fixing devices, it is related to hoisting appliance technical field, including first connecting plate, the one end of first connecting plate is fixed with the first limiting block of symmetrical arrangement, the other end of first connecting plate is fixed with clamping plate;The one end of first connecting plate close to first limiting block is slidably equipped with second connecting plate, the one end of second connecting plate away from first connecting plate is fixed with clamping plate, clamping plate is equipped with third limiting slot in opposite side, third limiting slot is slidably equipped with magnetic block;By pulling plug rod to the direction away from magnetic block, make plug rod separate from the insertion hole of magnetic block;The limiting constraint of magnetic block is removed;By handle from the top of clamping plate, extract the invalid magnetic block;New magnetic block is pushed into along third limiting slot and installed to clamping plate;Loosen the plug rod of this preceding pull, spring restores deformation and pushes plug rod reset, make plug rod reinsert into the insertion hole of new magnetic block, complete the replacement of magnetic block after magnetic property disappears.

Description

Technical Field

[0001] This utility model relates to the field of hoisting equipment technology, specifically a transformer hoisting and fixing device. Background Technology

[0002] In the field of power engineering construction and operation and maintenance, transformers are the core equipment in the power system that realizes voltage transformation, power transmission and distribution. During installation, maintenance and replacement, they often need to be moved by lifting devices. Due to the large size, heavy weight and precise internal structure of transformers, the lifting operation has extremely high requirements for the stability, safety and ease of operation of the equipment. The reliability of the fixing device is directly related to the integrity of the transformer and the personal safety of the construction personnel. Therefore, the lifting and fixing device of the transformer has become an indispensable key auxiliary equipment in the power construction process.

[0003] The existing clamp spacing adjustment of the fixing device mostly relies on the traditional method of tightening bolts or manually pushing. This type of adjustment is not only difficult to control in terms of precision and cannot achieve quick and accurate adaptation to the actual width of different transformer models, but also has the problem of low operation efficiency. When dealing with transformers with different widths, if the clamp spacing is not properly adjusted, it is very easy for the clamps to not fit tightly with the transformer shell. After the lifting operation starts, the transformer is subjected to shaking impact and inertial force, which can easily cause the position to shift. In severe cases, it may even cause the transformer to tilt or fall, which are major safety hazards, directly threatening the safety and stability of the lifting operation. At the same time, it may also damage the transformer equipment, increase construction costs and maintenance risks.

[0004] Patent CN214692838U discloses a hoisting fixing device and a lifting device. By providing multiple first bolt holes on the first connecting plate and at least one second bolt hole at the end of the second connecting plate, the multiple first bolt holes can be selectively matched with the second bolt holes to adjust the distance between the two lifting plates. This ensures that the box-type transformer will not be squeezed by the hoisting fixing device during the hoisting process, and there is no need to change the hoisting tools of different sizes.

[0005] However, this patent has the following drawbacks: the fixing device adjusts transformers of different widths by matching bolts and bolt holes. This adjustment method is very likely to cause the clamping plate and the transformer shell to not fit tightly, which may cause the transformer to tilt during the lifting process. Utility Model Content

[0006] To address the technical problems in existing technologies, such as the slow and inefficient use of bolt tightening or manual adjustment of clamp spacing to accommodate transformers of different widths, the present invention provides a transformer hoisting and fixing device. These problems include the tendency for clamps to not fit tightly against the transformer casing, and the transformer to shift due to shaking and inertia during hoisting, leading to equipment damage and increased costs.

[0007] The objective of this utility model can be achieved through the following technical solutions: A transformer hoisting and fixing device includes a first connecting plate, one end of which is fixedly provided with symmetrically arranged first limiting blocks, and the other end of which is fixedly provided with a clamping plate; a second connecting plate is slidably provided on the end of the first connecting plate near the first limiting blocks, and a clamping plate is fixedly provided on the end of the second connecting plate away from the first connecting plate; a third limiting groove is opened on the opposite side of the clamping plate, and a magnetic block is slidably provided in the third limiting groove.

[0008] Furthermore, the second connecting plate has a first limiting groove inside, and a second limiting groove is provided on both sides of the inner wall of the second connecting plate.

[0009] Furthermore, a silicone foam is fixedly provided on the top of the magnetic block, and the silicone foam is slidably installed in the third limiting groove. A handle is fixedly provided on the top of the silicone foam, and a hanging ring is provided on the top of the clamping plate.

[0010] Furthermore, an elastic buffer block is fixed on one side of the magnetic block, and insert rods are provided on both sides of the clamping plate, with the insert rods distributed perpendicularly to the magnetic block.

[0011] Furthermore, a fourth limiting groove is provided on the clamp plate at the position of the insertion rod, and a second limiting block is provided at the end of the fourth limiting groove near the magnetic block.

[0012] Furthermore, the inner wall of the second limiting block is fixedly connected to the outer wall of the insertion rod, and the outer wall of the second limiting block is slidably connected to the inner wall of the fourth limiting groove.

[0013] Furthermore, a spring is provided in the fourth limiting groove, one end of the spring is fixedly connected to the inner side wall of the fourth limiting groove, and the other end of the spring is fixedly connected to the second limiting block; the magnetic block is provided with an insertion hole at the position of the insertion rod.

[0014] Furthermore, a hydraulic rod is provided between the first connecting plates. The hydraulic rod is fixed to the side wall of one side of the clamping plate, and the output end of the hydraulic rod is fixedly connected to the side wall of the other side of the clamping plate.

[0015] The beneficial effects of this utility model are: This invention involves pulling the insertion rod away from the magnetic block, causing it to gradually detach from the magnetic block's insertion hole. The rod remains away from the insertion hole under the spring force, at which point the magnetic block's limiting constraint is released. The failed magnetic block is then pulled out from the top of the clamping plate using a handle. A new magnetic block is then aligned with the third limiting groove of the clamping plate, pushed in along the groove, and installed in the designated position within the clamping plate. Releasing the previously pulled insertion rod causes the spring to return to its original shape and push the insertion rod back into the insertion hole of the new magnetic block, thus completing the replacement of the demagnetized magnetic block.

[0016] This invention uses the extension and retraction of hydraulic rods to adjust the distance between the two sets of clamping plates according to the actual width of the transformer, until the elastic buffer block on the inner side of the clamping plate is precisely fitted with the transformer shell. During the process of the crane starting and driving the entire device to rise, the clamping plate fixes the transformer, and the magnetic blocks built into the clamping plate will form an auxiliary stable constraint on the transformer through strong magnetic adsorption, effectively counteracting the displacement caused by shaking and inertia during the lifting process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the first connecting plate and the second connecting plate of this utility model; Figure 3 This is a schematic diagram of the structure of the clamping plate of this utility model; Figure 4 for Figure 3 A frontal sectional view; Figure 5 for Figure 3 Side view sectional view; Figure 6 This is a schematic diagram of the structure of the magnetic block of this utility model.

[0018] The attached diagram lists the components represented by each number as follows: 1. First connecting plate; 101. First limiting block; 2. Second connecting plate; 201. First limiting groove; 202. Second limiting groove; 3. Clamping plate; 4. Elastic buffer block; 5. Third limiting groove; 6. Silicone foam; 7. Lifting ring; 8. Handle; 9. Insert rod; 10. Fourth limiting groove; 11. Spring; 12. Second limiting block; 13. Magnetic block; 14. Insertion hole; 15. Hydraulic rod. 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 Figure 1-2 As shown, a transformer hoisting and fixing device includes a first connecting plate 1, which is symmetrically distributed in the horizontal direction and has an elongated shape. A first limiting block 101 is fixedly provided at one end of the first connecting plate 1, and a clamping plate 3 is fixedly provided at the other end of the first connecting plate 1.

[0021] A second connecting plate 2 is slidably provided at one end of the first connecting plate 1 near the first limiting block 101. The interior of the second connecting plate 2 is provided with a first limiting groove 201, which is configured to cooperate with the first connecting plate 1. The inner walls of the second connecting plate 2 are provided with second limiting grooves 202, which are configured to cooperate with the first limiting block 101.

[0022] With the setting of the first limiting groove 201, the first limiting block 101 and the second limiting groove 202, the first connecting plate 1 can slide horizontally inside the second connecting plate 2, thereby adjusting the width between the first connecting plate 1 and the second connecting plate 2 to accommodate transformers of different widths.

[0023] A clamping plate 3 is fixedly provided at one end of the first connecting plate 1 away from the first limiting block 101, and a clamping plate 3 is fixedly provided at one end of the second connecting plate 2 away from the first connecting plate 1. The clamping plate 3 is perpendicular to the first connecting plate 1 and the second connecting plate 2.

[0024] Hydraulic rods 15 are provided between the symmetrically arranged first connecting plates 1. The hydraulic rods 15 are fixed to the side wall of the clamping plate 3 on one side, and the output end of the hydraulic rods 15 is fixedly connected to the side wall of the clamping plate 3 on the other side.

[0025] The clamping plate 3 on one side is pushed by the hydraulic rod 15, and the first connecting plate 1 slides on the second connecting plate 2, which can clamp transformers of different widths.

[0026] Please see Figure 3-6 As shown, the symmetrically arranged clamping plates 3 have a third limiting groove 5 on the opposite side. The third limiting groove 5 is T-shaped. A magnetic block 13 is slidably arranged in the third limiting groove 5. The magnetic block 13 is also T-shaped and is arranged in conjunction with the third limiting groove 5. The magnetic block 13 is used for the initial positioning of the transformer and for fixing the transformer during the lifting process of the crane, preventing the transformer from tilting during the lifting process.

[0027] A silicone foam 6 is fixedly provided on the top of the magnetic block 13. The silicone foam 6 is slidably installed in the third limiting groove 5. A handle 8 is fixedly provided on the top of the silicone foam 6. The handle 8 makes it easy to pull the magnetic block 13 and the silicone foam 6 out of the clamp 3 for replacement.

[0028] The symmetrically arranged magnetic blocks 13 have an elastic buffer block 4 fixed on the opposite side. The elastic buffer block 4 can be made of natural rubber, silicone rubber, polyurethane foam, etc. The elastic buffer block 4 is used to avoid hard collisions when the magnetic blocks 13 attract the metal shell of the instantaneous transformer, which may damage the paint or sealing structure of the shell.

[0029] The top of the clamping plate 3 is provided with a lifting ring 7, which makes it easy for a crane to lift the transformer; both sides of the clamping plate 3 are provided with insert rods 9, which are perpendicular to the magnetic block 13.

[0030] The clamping plate 3 is provided with a fourth limiting groove 10 at the position of the insertion rod 9. A second limiting block 12 is provided at one end of the fourth limiting groove 10 near the magnetic block 13. The second limiting block 12 is circular. The inner side wall of the second limiting block 12 is fixedly connected to the outer side wall of the insertion rod 9, and the outer side wall of the second limiting block 12 is slidably connected to the inner side wall of the fourth limiting groove 10.

[0031] A spring 11 is provided in the fourth limiting groove 10. One end of the spring 11 is fixedly connected to the inner side wall of the fourth limiting groove 10, and the other end of the spring 11 is fixedly connected to the second limiting block 12. The magnetic block 13 is provided with a insertion hole 14 at the position of the insertion rod 9. The insertion rod 9 and the insertion hole 14 are matched.

[0032] Insert the insertion rod 9 into the preset insertion hole 14 of the magnetic block 13. The insertion rod 9 can form a longitudinal limit on the magnetic block 13, effectively preventing the magnetic block 13 from moving upward in the vertical direction, and ensuring the installation stability of the magnetic block 13 in the clamping plate 3.

[0033] When the magnetism of the magnetic block 13 inside the clamping plate 3 dissipates, the insertion rod 9 is first pulled away from the magnetic block 13, so that the insertion rod 9 gradually disengages from the insertion hole 14 of the magnetic block 13. The insertion rod 9 remains away from the insertion hole 14 under the elastic force of the spring 11, at which point the limiting constraint of the magnetic block 13 is released. The failed magnetic block 13 is pulled out from the top of the clamping plate 3 through the handle 8. A new magnetic block 13 is taken and aligned with the third limiting groove 5 of the clamping plate 3. The new magnetic block 13 is pushed in along the third limiting groove 5 and installed in the designated position inside the clamping plate 3. The previously pulled insertion rod 9 is released, the spring 11 returns to its deformation and pushes the insertion rod 9 to reset, so that the insertion rod 9 is reinserted into the insertion hole 14 of the new magnetic block 13, completing the replacement of the magnetic block 13.

[0034] Working principle: First, the transformer to be hoisted is transferred between the symmetrically arranged clamps 3, ensuring that the center of the transformer is basically aligned with the axis of symmetry of the clamps 3. By extending and retracting the hydraulic rod 15, the distance between the two sets of clamps 3 is adjusted according to the actual width of the transformer until the elastic buffer block 4 on the inner side of the clamps 3 is precisely fitted with the transformer shell. During the process of the crane starting and driving the whole device to rise, the magnetic block 13 built into the clamps 3 will form a stable constraint on the transformer through strong magnetic adsorption, effectively counteracting the displacement caused by shaking and inertia during the hoisting process.

[0035] When the magnetism of the magnetic block 13 inside the clamping plate 3 dissipates, the insertion rod 9 is first pulled away from the magnetic block 13, so that the insertion rod 9 gradually disengages from the insertion hole 14 of the magnetic block 13. The insertion rod 9 remains away from the insertion hole 14 under the elastic force of the spring 11, at which point the limiting constraint of the magnetic block 13 is released. The failed magnetic block 13 is pulled out from the top of the clamping plate 3 through the handle 8. A new magnetic block 13 is taken and aligned with the third limiting groove 5 of the clamping plate 3. The new magnetic block 13 is pushed in along the third limiting groove 5 and installed in the designated position inside the clamping plate 3. The previously pulled insertion rod 9 is released, the spring 11 returns to its deformation and pushes the insertion rod 9 to reset, so that the insertion rod 9 is reinserted into the insertion hole 14 of the new magnetic block 13, completing the replacement of the magnetic block 13.

[0036] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] 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.

Claims

1. A transformer hoisting and fixing device, comprising a first connecting plate (1), characterized in that, One end of the first connecting plate (1) is fixedly provided with a symmetrically arranged first limiting block (101), and the other end of the first connecting plate (1) is fixedly provided with a clamping plate (3); the first connecting plate (1) is slidably provided with a second connecting plate (2) at the end close to the first limiting block (101), and the second connecting plate (2) is fixedly provided with a clamping plate (3) at the end away from the first connecting plate (1). The clamping plate (3) is provided with a third limiting groove (5) on the opposite side, and a magnetic block (13) is slidably provided in the third limiting groove (5).

2. The transformer hoisting and fixing device according to claim 1, characterized in that, The second connecting plate (2) has a first limiting groove (201) inside and a second limiting groove (202) on both sides of the inner wall of the second connecting plate (2).

3. The transformer hoisting and fixing device according to claim 2, characterized in that, The top of the magnetic block (13) is fixedly provided with silicone foam (6), the silicone foam (6) is slidably installed in the third limiting groove (5), the top of the silicone foam (6) is fixedly provided with a handle (8), and the top of the clamp (3) is provided with a hanging ring (7).

4. The transformer hoisting and fixing device according to claim 3, characterized in that, The magnetic block (13) has an elastic buffer block (4) fixed on one side, and the clamp (3) has a plug (9) on both sides, which are perpendicular to the magnetic block (13).

5. A transformer hoisting and fixing device according to claim 4, characterized in that, The clamp (3) has a fourth limiting groove (10) at the insertion rod (9), and a second limiting block (12) is provided at the end of the fourth limiting groove (10) near the magnetic block (13).

6. A transformer hoisting and fixing device according to claim 5, characterized in that, The inner wall of the second limiting block (12) is fixedly connected to the outer wall of the insertion rod (9), and the outer wall of the second limiting block (12) is slidably connected to the inner wall of the fourth limiting groove (10).

7. A transformer hoisting and fixing device according to claim 6, characterized in that, The fourth limiting groove (10) is provided with a spring (11), one end of the spring (11) is fixedly connected to the inner side wall of the fourth limiting groove (10), and the other end of the spring (11) is fixedly connected to the second limiting block (12); the magnetic block (13) is provided with a plug hole (14) at the position of the plug rod (9).

8. A transformer hoisting and fixing device according to claim 7, characterized in that, A hydraulic rod (15) is provided between the first connecting plates (1). The hydraulic rod (15) is fixed to the side wall of the clamping plate (3) on one side, and the output end of the hydraulic rod (15) is fixedly connected to the side wall of the clamping plate (3) on the other side.

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