Lifting device, transformer oil tank and transformer
By setting up connection components and reinforcement plates on the upper clamp of the transformer, the stress area and structural strength are increased, and the lateral distance is increased at the position of the hanging screw, the problems of stress concentration and electrical safety hazards of transformer clamps are solved, and the problems of stress concentration and electrical safety hazards of the transformer clamps are improved. lifting safety and maintenance difficulty.
Patent Information
- Application Number
- CN202421219863.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The local stress area of the transformer clamp is small, and the stress concentration causes the clamp to easily cause cracks or deformation. The distance between the hanging screw and the high-voltage casing lifting seat is too close, which increases the risk of arc discharge and makes it difficult to clean and inspect.
A lifting device is designed, including an upper clamp and a lower clamp. By providing a connecting assembly on the first channel steel of the upper clamp, the stress area is increased, and the reinforcement plate is connected between the two support plates to improve the Overall structural strength. The hanging screw is arranged at one end of the support plate away from the first channel steel, increasing the lateral distance from the fuel tank cover, and reducing electrical safety hazards.
By increasing the stress area and structural strength, the clamps are prevented from being damaged due to uneven stress, and the safety of the transformer lifting process is improved; at the same time, electrical safety hazards are reduced and the lifting and maintenance process of the transformer is simplified.
Smart Images
Figure CN222498351U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a lifting device, a transformer oil tank and a transformer. Background Art
[0002] As the capacity of transformers increases, the size of transformers becomes larger and heavier. In order to facilitate the lifting of the transformer body, a lifting screw is usually set on the clamp of the transformer body. On the one hand, since oil-immersed transformers also need to be equipped with components such as high-voltage bushing risers on the box cover, after the high-voltage bushing risers are installed, the overall center of gravity of the transformer will change, and only the position of the lifting screw on the transformer clamp is used as a stress concentration point, which can easily cause cracks or deformation of the clamp near this point, and the transformer body is prone to shaking or tilting during the lifting process. On the other hand, the distance between the lifting screw set on the clamp and the high-voltage bushing riser is too close, which will lead to insufficient electrical insulation distance, increase the risk of arc discharge, and make it inconvenient to clean and repair the transformer. Utility Model Content
[0003] The main purpose of the utility model is to provide a lifting device, a transformer oil tank and a transformer, aiming to solve the problem that the local force-bearing area of the transformer clamp is small and the stress concentration causes the clamp to easily crack or deform.
[0004] To achieve the above-mentioned purpose, the lifting device proposed by the utility model includes an upper clamp, wherein the upper clamp includes two symmetrically arranged first channel steels; the opposite ends of the two first channel steels are connected by a first connecting rod; the ends of the two first channel steels that are away from each other are respectively provided with connecting components; and the two ends of each first channel steel along the length direction are respectively connected with the connecting components; the connecting components include two support plates extending in a direction away from the first channel steel, one of the support plates is connected to the upper wing plate of the first channel steel, and the other support plate is connected to the lower wing plate of the first channel steel; a reinforcing plate is connected between the two support plates, and a lifting screw is provided at the end of one of the support plates away from the first channel steel, and the lifting screw is used to connect the fuel tank cover;
[0005] A lower clamp, the lower clamp comprising two symmetrically arranged second channel steels; opposite ends of the two second channel steels are connected by a second connecting rod, and surfaces of the two second channel steels away from the upper clamp are connected to a bottom plate, and the bottom plate connects the two second channel steels;
[0006] In the height direction, a plurality of third connecting rods are connected between the two first channel steels and the two second channel steels on the same side thereof, and the plurality of third connecting rods are arranged at intervals along the length direction of the first channel steels.
[0007] Optionally, the two support plates are parallel to each other, and the reinforcing plate is perpendicular to the two support plates.
[0008] Optionally, the length of the support plate provided with the suspension screw is greater than the length of another support plate.
[0009] Optionally, a first through hole is provided on a surface of the reinforcing plate facing the first channel steel, and the first through hole is used for allowing the first connecting rod to pass through.
[0010] Optionally, there are two reinforcing plates, which are spaced apart along the direction of the support plate away from the first channel steel. The two reinforcing plates are parallel to each other, and the length direction of the two reinforcing plates is the same as the length direction of the first channel steel. The side surface of one of the reinforcing plates abuts against the surface of the upper wing plate of the first channel steel away from the other first channel steel.
[0011] Optionally, one end of the third connecting rod passes through the upper wing plate and the lower wing plate of the first channel steel at the same time, and one end of the third connecting rod facing away from the upper wing plate is connected to a fastening nut.
[0012] The utility model also proposes a transformer oil tank, comprising any one of the above-mentioned lifting devices, and also comprising an oil tank body, wherein the oil tank body has an inner cavity, the lifting device is arranged in the inner cavity, one end of the oil tank body is provided with an opening, the opening is covered with an oil tank cover, and the oil tank cover is connected to one end of the lifting screw away from the support plate.
[0013] Optionally, a second through hole is provided on a surface of the oil tank cover facing away from the oil tank body, and the second through hole is used for installing a high-voltage bushing lifting seat.
[0014] Optionally, a hanging nut is provided on the surface of the fuel tank cap facing the inner cavity, the hanging nut is threadedly connected to the hanging screw, and a hanging ear is provided on the surface of the fuel tank cap facing away from the hanging nut.
[0015] The utility model also proposes a transformer, comprising any of the above-mentioned transformer oil tanks, and also comprising a transformer body, wherein the transformer body is arranged in the inner cavity of the transformer oil tank, and the lifting device is used to install the transformer body, wherein the combined structure of the lower clamp and the bottom plate is used to support the transformer body.
[0016] The technical solution of the utility model is to set a connecting component on the first channel steel of the upper clamp, and the connecting component includes two support plates extending in a direction away from the first channel steel. The two support plates are respectively connected to the upper and lower wing plates of the first channel steel, so that the force area between the connecting component and the upper clamp can be increased, so that the force of the upper clamp is evenly distributed, which helps to prevent local stress concentration and damage to the upper clamp caused by uneven force, and improve the safety of the transformer lifting process; by connecting a reinforcing plate between the two support plates, the overall structural strength of the connecting component can be strengthened, so that during the lifting process of the transformer, the connecting component can withstand greater pressure and tension, ensuring that the connecting component will not be deformed or damaged; by setting the lifting screw at one end of one of the support plates away from the first channel steel, in the direction horizontal to the ground, the lateral distance between the lifting screw and the high-voltage bushing lifting seat on the oil tank cover can be increased, effectively reducing electrical safety hazards, and when the transformer is hoisted, the risk of collision between the lifting screw and the high-voltage bushing lifting seat when the oil tank cover is connected to the transformer body can be reduced, reducing the mutual interference of various components during the lifting and maintenance of the transformer, and reducing the difficulty of lifting and maintenance of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0018] Figure 1 It is a structural schematic diagram of the combination of the lifting device of the utility model, the oil tank cover and the transformer body;
[0019] Figure 2 for Figure 1 A partial enlarged view of the middle A;
[0020] Figure 3 It is a left side view of the combination of the lifting device of the utility model, the oil tank cover and the transformer body;
[0021] Figure 4 It is a front view of the combination of the lifting device of the utility model, the oil tank cover and the transformer body.
[0022] Description of Figure Numbers:
[0023] Label name Label name 1 Upper clamp 2 Lower clamp 10 First channel steel 20 Second channel steel 101 First connecting rod 201 Second connecting rod 102 Upper wing plate 202 Base Plate 103 Lower wing plate 3 The third connecting rod 11 Connecting components 4 Fuel tank cap 110 Support board 40 High voltage bushing riser 111 Reinforcement plate 41 Suspension nut 1110 First through hole 42 Lifting lugs 112 Hanging screw 5 Transformer body
[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0029] In order to solve the above technical problems, the utility model proposes a lifting device, comprising: an upper clamp 1, the upper clamp 1 comprising two symmetrically arranged first channel steels 10; the opposite ends of the two first channel steels 10 are connected by a first connecting rod 101; the ends of the two first channel steels 10 that are away from each other are respectively provided with a connecting assembly 11; and the two ends of each first channel steel 10 along the length direction are respectively connected with the connecting assembly 11; the connecting assembly 11 comprises two support plates 110 extending in a direction away from the first channel steel 10, one of the support plates 110 is connected to the upper wing plate 102 of the first channel steel 10, and the other support plate 110 is connected to the lower wing plate 103 of the first channel steel 10; the two support plates 11 0 is connected with a reinforcing plate 111, one end of the support plate 110 away from the first channel steel 10 is provided with a hanging screw 112, and the hanging screw 112 is used to connect the fuel tank cover 4; the lower clamp 2, the lower clamp 2 includes two symmetrically arranged second channel steels 20; the opposite ends of the two second channel steels 20 are connected by a second connecting rod 201, and the surfaces of the two second channel steels 20 away from the upper clamp 1 are connected with a bottom plate 202, and the bottom plate 202 connects the two second channel steels 20; in the height direction, a plurality of third connecting rods 3 are connected between the two first channel steels 10 and the two second channel steels 20 on the same side thereof, and the plurality of third connecting rods 3 are arranged at intervals along the length direction of the first channel steel 10. Please refer to Figure 1 to Figure 2 .
[0030] The utility model sets a connecting assembly 11 on the first channel steel 10 of the upper clamp 1, and the connecting assembly 11 includes two support plates 110 extending in a direction away from the first channel steel 10, and the two support plates 110 are respectively connected to the upper and lower wing plates 103 of the first channel steel 10, so as to increase the force-bearing area between the connecting assembly 11 and the upper clamp 1, so that the force of the upper clamp 1 is evenly distributed, which helps to prevent the local stress concentration and damage of the upper clamp 1 caused by uneven force, and improves the safety of the transformer lifting process; it should be noted that the sizes of the two support plates 110 can be the same or different, and their main function is to increase the force-bearing area between the connecting assembly 11 and the upper clamp 1, and a reinforcing plate 111 is connected between the two support plates 110, which can It is enough to strengthen the overall structural strength of the connection assembly 11, so that during the lifting process of the transformer, the connection assembly 11 can withstand greater pressure and tension, ensuring that the connection assembly 11 will not be deformed or damaged; by setting the lifting screw 112 at one end of one of the support plates 110 away from the first channel steel 10, in the direction horizontal to the ground, the lateral distance between the lifting screw 112 and the high-voltage bushing lifting seat 40 on the oil tank cover 4 can be increased, effectively reducing electrical safety hazards. At the same time, when the transformer is lifted, the risk of collision between the lifting screw 112 and the high-voltage bushing lifting seat 40 when the oil tank cover 4 is connected to the transformer body 5 can be reduced, reducing the mutual interference of various components during the lifting and maintenance of the transformer, and reducing the difficulty of lifting and maintenance of the transformer. It should be noted that the lifting screw 112 is preferably set on the support plate 110 connected to the upper wing plate 102 of the first channel steel 10.
[0031] In this embodiment, the cross-sectional shape of the two first channel steels 10 in the height direction is C-shaped, and the openings of the two first channel steels 10 are separated from each other. The opposite ends of the two first channel steels 10 are connected by a first connecting rod 101, and the number of the first connecting rods 101 can be set to multiple, so as to enhance the stability of the upper clamp 1, further fix and clamp the transformer, prevent the iron core on the transformer from shifting and deforming, and improve the stability and safety of the transformer during the hoisting process. The cross-sectional shape of the two second channel steels 20 in the height direction is C-shaped, and the openings of the two second channel steels 20 are separated from each other. The opposite ends of the two second channel steels 20 are connected by a second connecting rod 201, and the number of the second connecting rods 201 can be set to multiple, so as to enhance the stability of the lower clamp 2, further fix and clamp the transformer, prevent the iron core on the transformer from shifting and deforming, and improve the stability and safety of the transformer during the hoisting process. The surfaces of the two second channel steels 20 away from the upper clamp 1 are connected with a bottom plate 202, and the bottom plate 202 connects the two second channel steels 20. Furthermore, a plurality of bottom plates 202 are provided, which are spaced apart along the length direction of the second channel steels 20. Specifically, the bottom plate 202 is used to carry the transformer.
[0032] In this embodiment, the connection method between one of the support plates 110 and the upper wing plate 102 of the first channel steel 10 can be: the lower surface of the support plate 110 is connected to the upper surface of the upper wing plate 102, or the upper surface of the support plate 110 is connected to the lower surface of the upper wing plate 102, which helps to increase the force-bearing area of the support plate 110 and the upper clamp 1, so that the force of the upper clamp 1 is evenly distributed, which helps to prevent local stress concentration and damage to the upper clamp 1 due to uneven force, and prevent the transformer from shaking or tilting during lifting; further, the support plate 110 is welded to the upper wing plate 102, or the support plate 110 is fixedly connected to the upper wing plate 102 by fastening bolts. In this embodiment, the connection method between another support plate 110 and the lower wing plate 103 of the first channel steel 10 can be: the lower surface of the support plate 110 is connected to the upper surface of the lower wing plate 103, or the upper surface of the support plate 110 is connected to the lower surface of the lower wing plate 103, which helps to increase the force-bearing area of the support plate 110 and the upper clamp 1, so that the force of the upper clamp 1 is evenly distributed, which helps to prevent local stress concentration and damage to the upper clamp 1 due to uneven force, and prevent the transformer from shaking or tilting during lifting; further, the support plate 110 is welded to the lower wing plate 103, or the support plate 110 is fixedly connected to the lower wing plate 103 by tightening bolts.
[0033] In this embodiment, the third connecting rod 3 is connected to the first channel steel 10 and the second channel steel 20 by threads and fixed by fastening nuts, wherein the connection between one end of the third connecting rod 3 and the first channel steel 10 can be through only the lower wing plate 103 of the first channel steel 10, or through both the upper wing plate 102 and the lower wing plate 103 of the first channel steel 10; the connection between the other end of the third connecting rod 3 away from the first channel steel 10 and the second channel steel 20 can be through only the upper wing plate 102 of the second channel steel 20, or through both the upper wing plate 102 and the lower wing plate 103 of the second channel steel 20.
[0034] It should be noted that the lifting device in this embodiment is used to install the transformer body 5, wherein the structural design of the connecting assembly 11 can be adjusted according to the working environment of the transformer. For example, in an environment with large vibration, the number and thickness of the reinforcing plates 111 can be increased to improve the vibration resistance of the clamp. Of course, the lifting device in this embodiment can meet the working conditions of various styles of lifting ears 42 on the fuel tank cover 4, wherein the lengths of the two support plates 110 and the specific positions of the lifting screws 112 can also be adjusted according to the working conditions of the lifting ears 42 on the fuel tank cover 4, for example When other components (such as a high-voltage bushing lifting seat 40) are to be set on the fuel tank cover 4, the positions of the lifting ears 42 and the lifting nuts 41 on the fuel tank cover 4 will deviate from the top of the upper clamp 1. At this time, the length of the support plate 110 can be lengthened according to the offset distance of the lifting ears 42 and the lifting nuts 41, and the lifting screw 112 can be set at one end of one of the support plates 110 away from the first channel steel 10, which helps to connect the fuel tank cover 4 and the transformer body 5 into a whole, reduces the difficulty of lifting, and enables the lifting device to meet the working conditions of various styles of fuel tank covers 4 and their lifting ears 42.
[0035] It should be noted that the number of lifting screws 112 can also be set to multiple, which helps to disperse the weight and pressure borne by each lifting screw 112, avoid excessive force on a single lifting screw 112 causing deformation of the support plate 110, provide a stable lifting point for lifting the transformer, and ensure that the transformer can be lifted steadily and safely during the lifting process.
[0036] See also Figures 2 to 3 In this embodiment, the two support plates 110 are parallel to each other, and the reinforcing plate 111 is perpendicular to the two support plates 110 .
[0037] In this embodiment, the two support plates 110 are parallel to each other, and the reinforcing plates 111 are perpendicular to the two support plates 110, which helps to increase the overall structural strength of the connecting assembly 11. Specifically, the number of reinforcing plates 111 can also be set to multiple, and the multiple reinforcing plates 111 are all perpendicular to the two support plates 110. The cross-sectional shape of the multiple reinforcing plates 111 and the two support plates 110 in the height direction includes a closed rectangle, ensuring that the upper clamp 1 and the connecting assembly 11 are subjected to uniform force when lifting the transformer, preventing the upper clamp 1 from being deformed and damaged due to local stress concentration, and at the same time providing a stable support for the two support plates 110.
[0038] See also Figure 2 , the length of the support plate 110 provided with the suspension screw 112 is greater than the length of the other support plate 110 .
[0039] In this embodiment, the hanging screw 112 can be arranged on the support plate 110 connected to the upper wing plate 102 of the first channel steel 10, or on the support plate 110 connected to the lower wing plate 103 of the first channel steel 10. Of course, the length of the support plate 110 provided with the hanging screw 112 needs to be greater than the length of the other support plate 110, so as to facilitate the normal installation of the hanging screw 112. The hanging screw 112 is preferably arranged at one end of the support plate 110 away from the reinforcing plate 111, which helps to increase the lateral distance between the hanging screw 112 and the transformer, and effectively reduce electrical safety hazards.
[0040] See also Figure 4 In this embodiment, a first through hole 1110 is provided on a surface of the reinforcing plate 111 facing the first channel steel 10 , and the first through hole 1110 is used for the first connecting rod 101 to pass through.
[0041] In this embodiment, the first through holes 1110 are provided so that the first connecting rod 101 can pass therethrough, so as not to hinder the normal installation of the first connecting rod 101. Of course, the number of the first through holes 1110 and the number and positions of the first connecting rods 101 need to correspond one to one.
[0042] See also Figure 3 In this embodiment, the number of the reinforcing plates 111 is two, which are spaced apart along the direction of the support plate 110 away from the first channel steel 10, the two reinforcing plates 111 are parallel to each other, and the length direction of the two reinforcing plates 111 is the same as the length direction of the first channel steel 10, and the side surface of one of the reinforcing plates 111 is in contact with the surface of the upper wing plate 102 of the first channel steel 10 away from the other first channel steel 10.
[0043] In this embodiment, the cross-sectional shape of the two reinforcing plates 111 and the two supporting plates 110 in the height direction includes a closed rectangle, which can ensure that the upper clamp 1 and the connecting assembly 11 are subjected to uniform force when the transformer is hoisted, prevent the upper clamp 1 from being deformed and damaged due to local stress concentration, and at the same time provide a stable support for the two supporting plates 110. The structure of this embodiment helps to disperse the pressure of the two supporting plates 110 on the upper wing plate 102 and the lower wing plate 103 on the first channel steel 10 to the reinforcing plate 111. Since the reinforcing plate 111 can withstand greater pressure and tension, a side surface of the reinforcing plate 111 is brought into contact with the surface of the upper wing plate 102 facing away from the other first channel steel 10, which can prevent the upper clamp 1 from being deformed due to excessive force. Of course, the surfaces of the two reinforcing plates 111 facing the first channel steel 10 are provided with corresponding first through holes 1110 for the first connecting rod 101 to pass through.
[0044] See also Figures 2 to 4In this embodiment, one end of the third connecting rod 3 passes through the upper wing plate 102 and the lower wing plate 103 of the first channel steel 10 at the same time, and the end of the third connecting rod 3 away from the upper wing plate 102 is connected with a fastening nut.
[0045] In this embodiment, the third connecting rod 3 is connected to the first channel steel 10 and the second channel steel 20 by threads and fixed by fastening nuts, wherein one end of the third connecting rod 3 is connected to the first channel steel 10 by simultaneously passing through the upper wing plate 102 and the lower wing plate 103 of the first channel steel 10, and the other end of the third connecting rod 3 away from the first channel steel 10 is connected to the second channel steel 20 by only passing through the upper wing plate 102 of the second channel steel 20, or by simultaneously passing through the upper wing plate 102 and the lower wing plate 103 of the second channel steel 20. The structure of this embodiment helps to improve the stability of the lifting device and improve the safety of the transformer lifting process.
[0046] The utility model also proposes a transformer oil tank, which includes an oil tank body and a lifting device. The specific structure of the lifting device refers to the above-mentioned embodiment. Since the transformer oil tank adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. Among them, the oil tank body has an inner cavity, and the lifting device is arranged in the inner cavity. One end of the oil tank body is provided with an opening, and the opening is covered with an oil tank cover 4. The oil tank cover 4 is connected to one end of the lifting screw 112 away from the support plate 110. Among them, the lifting device is used to install and support the transformer body 5, and the transformer body 5 is arranged in the inner cavity of the oil tank. The oil tank body described in this embodiment adopts the structure of the transformer oil tank in the prior art, and the oil tank body structure is not shown in the figure.
[0047] See also Figure 1 In this embodiment, a second through hole is provided on a surface of the oil tank cover 4 which faces away from the oil tank body, and the second through hole is used for installing a high-voltage bushing lifting seat 40 .
[0048] See also Figure 3 to Figure 4 In this embodiment, a hanging nut 41 is provided on the surface of the fuel tank cap 4 facing the inner cavity, the hanging nut 41 is threadedly connected to the hanging screw 112, and a hanging ear 42 is provided on the surface of the fuel tank cap 4 facing away from the hanging nut 41.
[0049] It should be noted that the lifting device in this embodiment is used to install the transformer body 5, and the lifting device is installed together with the transformer body 5 in the inner cavity of the transformer oil tank, wherein the length of the two support plates 110 and the specific position of the lifting screw 112 can also be adjusted according to the working conditions of the lifting ears 42 on the oil tank cover 4, so that the lifting device in this embodiment can meet the working conditions of various styles of lifting ears 42 on the oil tank cover 4. For example, when other components (such as a high-voltage bushing lifting seat 40) are to be set on the oil tank cover 4, the positions of the lifting ears 42 and the lifting nuts 41 on the oil tank cover 4 will deviate from the top of the upper clamp 1. At this time, the length of the support plate 110 can be lengthened according to the offset distance of the lifting ears 42 and the lifting nuts 41, and the lifting screw 112 can be set at one end of one of the support plates 110 away from the first channel steel 10, which helps to connect the oil tank cover 4 and the transformer body 5 into a whole, so that the oil tank cover 4 and the transformer body 5 can be lifted as a whole.
[0050] The utility model also proposes a transformer, which includes a transformer oil tank and a transformer body 5. The specific structure of the transformer oil tank refers to the above embodiment. Since the transformer adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. The transformer body 5 is arranged in the inner cavity of the transformer oil tank, and the lifting device is used to install the transformer body 5, wherein the combined structure of the lower clamp 2 and the bottom plate 202 is used to support the transformer body 5. Specifically, the type of the transformer is an oil-immersed transformer.
[0051] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A lifting device, characterized in that: include: The upper clamp (1) comprises two symmetrically arranged first channel steels (10); opposite ends of the two first channel steels (10) are connected by a first connecting rod (101); opposite ends of the two first channel steels (10) are respectively provided with connecting assemblies (11); and both ends of each first channel steel (10) along the length direction are respectively connected to the connecting assemblies (11); the connecting assemblies (11) comprise two connecting assemblies extending in a direction away from the first channel steel (10). Extended support plates (110), one of the support plates (110) is connected to the upper wing plate (102) of the first channel steel (10), and the other support plate (110) is connected to the lower wing plate (103) of the first channel steel (10); a reinforcing plate (111) is connected between the two support plates (110), and a hanging screw (112) is provided at one end of one of the support plates (110) away from the first channel steel (10), and the hanging screw (112) is used to connect the fuel tank cover; A lower clamp (2), the lower clamp (2) comprising two symmetrically arranged second channel steels (20); opposite ends of the two second channel steels (20) are connected by a second connecting rod (201); surfaces of the two second channel steels (20) away from the upper clamp (1) are connected to a bottom plate (202); the bottom plate (202) connects the two second channel steels (20); In the height direction, a plurality of third connecting rods (3) are connected between the two first channel steels (10) and the two second channel steels (20) on the same side thereof, and the plurality of third connecting rods (3) are arranged at intervals along the length direction of the first channel steel (10).
2. The lifting device according to claim 1, characterized in that: The two support plates (110) are parallel to each other, and the reinforcing plate (111) is perpendicular to the two support plates (110).
3. The lifting device according to claim 1, characterized in that: The length of the support plate (110) provided with the suspension screw (112) is greater than the length of the other support plate (110).
4. The lifting device according to claim 1, characterized in that: A first through hole (1110) is provided on the surface of the reinforcing plate (111) facing the first channel steel (10), and the first through hole (1110) is used for allowing the first connecting rod (101) to pass through.
5. The lifting device according to claim 1, characterized in that: The number of the reinforcing plates (111) is two, and they are spaced apart along the direction of the support plate (110) away from the first channel steel (10). The two reinforcing plates (111) are parallel to each other, and the length direction of the two reinforcing plates (111) is the same as the length direction of the first channel steel (10). The side surface of one of the reinforcing plates (111) abuts against the surface of the upper wing plate (102) of the first channel steel (10) away from the other first channel steel (10).
6. The lifting device according to claim 1, characterized in that: One end of the third connecting rod (3) passes through the upper wing plate (102) and the lower wing plate (103) of the first channel steel (10) at the same time, and one end of the third connecting rod (3) away from the upper wing plate (102) is connected with a fastening nut.
7. A transformer oil tank, comprising the lifting device according to any one of claims 1 to 6, characterized in that: Also includes: The oil tank body has an inner cavity, the lifting device is arranged in the inner cavity, one end of the oil tank body is provided with an opening, the opening is covered with an oil tank cover (4), and the oil tank cover (4) is connected to the end of the lifting screw (112) away from the support plate (110).
8. The transformer oil tank according to claim 7, characterized in that: A second through hole is provided on a surface of the oil tank cover (4) facing away from the oil tank body, and the second through hole is used for installing a high-voltage bushing lifting seat (40).
9. The transformer oil tank according to claim 7, characterized in that: A hanging nut (41) is provided on the surface of the fuel tank cover (4) facing the inner cavity, the hanging nut (41) is threadedly connected to the hanging screw (112), and a hanging ear (42) is provided on the surface of the fuel tank cover (4) facing away from the hanging nut (41).
10. A transformer, comprising the transformer oil tank according to any one of claims 7 to 9, characterized in that: It also includes a transformer body (5), which is arranged in the inner cavity of the transformer oil tank, and the lifting device is used to install the transformer body (5), wherein the combined structure of the lower clamp (2) and the bottom plate (202) is used to support the transformer body (5).