Novel radiator free tensioning device

Abstract

The utility model relates to a novel radiator free tensioning device which comprises an oil tank of a transformer and a radiator connected with the oil tank, a first fixing rod extending vertically is fixedly arranged on the side wall of the oil tank, a plurality of first connecting holes are formed in the first fixing rod in the length direction, a second fixing rod is fixedly arranged at the bottom of the radiator, and a plurality of second connecting holes are formed in the second fixing rod. A first connecting plate is fixedly connected to the second fixing rod, a second connecting hole is formed in the first connecting plate, a tensioning assembly is connected between the first connecting hole and the second connecting hole, and the tensioning assembly comprises a first screw, a second screw and an internal thread connector, and the first screw and the second screw are opposite to each other. The tensioning force and the stretching angle can be freely adjusted, stress on the radiator pipe joint can be effectively relieved, and oil leakage at the joint of the oil tank and the radiator can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a novel radiator free tensioning device. Background Art

[0002] At present, in view of the improvement of the energy efficiency level of transformers and the strict control of hot spot temperature rise, in order to meet the better heat dissipation effect of transformers, the number of plate radiators has increased significantly. Most transformer oil tanks are directly connected to the plate radiators through pipe joint structures, which play a role in supporting and connecting the plate radiators. However, in this fixing method, the force at the connection is uneven. After long-term operation, the radiator is prone to sag or oil leakage at the interface, affecting the safe operation of the transformer. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a tensioning device that can freely adjust the tensioning force and the stretching angle, improves the stability of tensioning the radiator, is more convenient to install, firmly fixed and reliable, effectively avoids the phenomenon of the radiator sagging or oil leakage, and ensures the safe operation of the transformer.

[0004] The utility model is realized by the following technical solutions. A novel radiator free tensioning device includes the oil tank of the transformer and the radiator connected to the oil tank. A vertically extending first fixing rod is fixedly arranged on the side wall of the oil tank. A plurality of first connection holes are arranged along the length direction on the first fixing rod. A second fixing rod is fixedly arranged at the bottom of the radiator. A first connecting plate is fixedly connected to the second fixing rod. A second connection hole is arranged on the first connecting plate. A tensioning component is connected between the first connection hole and the second connection hole. The tensioning component includes opposite first and second screws, and an internally threaded joint. The mutually approaching ends of the first and second screws are both threadedly connected to the internally threaded joint. The thread directions at both ends of the internally threaded joint are opposite. The mutually remote ends of the first and second screws are respectively movably connected to the first and second connection holes.

[0005] In this solution, the radiator and the transformer oil tank are connected and tensioned through the tensioning component. Since the thread directions at both ends of the internally threaded joint of the tensioning component are opposite, by rotating the internally threaded joint, the first and second screws are relatively close to or away from each other, so as to realize the free adjustment of the tensioning force, ensure the reliable tensioning of the radiator, effectively relieve the force at the pipe joint of the radiator, and effectively prevent oil leakage at the interface between the oil tank and the radiator. And because a plurality of first connection holes are arranged along the length direction of the first fixing rod, by connecting the end of the first screw to different first connection holes, the stretching angle of the tensioning component can be changed, so as to adjust the appropriate stretching angle according to radiators of different sizes or weights, and further ensure the stability of the radiator tensioning, making it more convenient to use.

[0006] As an optimization, a third fixing rod is fixedly arranged on the top of the radiator. A second connecting plate is fixedly connected to the third fixing rod. A third connecting hole is formed in the second connecting plate. The tensioning assembly is also connected between the third connecting hole and the first connecting hole. Through this optimization scheme, the top of the radiator is also connected and tensioned with the fuel tank through the tensioning assembly, further avoiding the sag of the radiator, further improving the tensioning effect of the radiator, and making the fixation of the radiator more firm and reliable.

[0007] As an optimization, hooks are arranged at the mutually remote ends of the first screw rod and the second screw rod. In this optimization scheme, the first screw rod and the second screw rod can be hooked on the corresponding connecting holes through the hooks, making the installation more convenient.

[0008] As an optimization, a first bottom plate is welded on the side wall of the fuel tank. The first fixing rod and the first bottom plate are fixedly connected through a fastening bolt. Through this optimization scheme, the connection strength between the first fixing rod and the transformer fuel tank can be improved through the first bottom plate. The first fixing rod and the first bottom plate are screwed together, facilitating disassembly and assembly.

[0009] As an optimization, a second bottom plate is welded at the bottom of the radiator. The second fixing rod and the second bottom plate are fixedly connected through a fastening bolt. Through this optimization scheme, the connection strength between the second fixing rod and the radiator can be improved through the second bottom plate. The second fixing rod and the second bottom plate are screwed together, facilitating disassembly and assembly.

[0010] As an optimization, a third bottom plate is welded on the top of the radiator. The third fixing rod and the third bottom plate are fixedly connected through a fastening bolt. Through this optimization scheme, the connection strength between the third fixing rod and the radiator can be improved through the third bottom plate. The third fixing rod and the third bottom plate are screwed together, facilitating disassembly and assembly.

[0011] The beneficial effects of the present utility model are as follows: Both the top and the bottom of the radiator are connected and tensioned with the transformer fuel tank through the tensioning assembly, effectively avoiding the sag of the radiator, improving the tensioning effect of the radiator, and making the fixation of the radiator more firm and reliable; The first screw rod and the second screw rod can be hooked on the corresponding connecting holes through the hooks, making the installation more convenient;

[0012] Since the thread directions at both ends of the internal thread joint of the tensioning assembly are opposite, by rotating the internal thread joint, the first screw rod and the second screw rod are relatively close to or far from each other, thereby realizing the free adjustment of the tensioning force, ensuring the reliable tensioning of the radiator, effectively relieving the stress at the pipe joint of the radiator, and effectively preventing oil leakage at the interface between the fuel tank and the radiator;

[0013] And since a plurality of first connecting holes are formed in the first fixing rod along the length direction, by connecting the end of the first screw rod to different first connecting holes, the stretching angle of the tensioning assembly can be changed, so that the appropriate stretching angle can be adjusted according to radiators of different sizes or weights, thereby ensuring the stability of the tensioning of the radiator and making it more convenient to use. Description of the Drawings

[0014] Figure 1 This is a schematic structural view of the utility model;

[0015] Figure 2 is Figure 1 an enlarged view of part A of

[0016] Figure 3 This is a schematic structural view of the tensioning assembly;

[0017] Figure 4 is Figure 3 a sectional view of part B of

[0018] As shown in the figure:

[0019] 1. Fuel tank, 2. Radiator, 3. First fixing rod, 31. First connection hole, 4. Second fixing rod, 5. First connecting plate, 51. Second connection hole, 6. Third fixing rod, 7. Second connecting plate, 71. Third connection hole, 8. Tensioning assembly, 81. First screw rod, 82. Second screw rod, 83. Internal thread joint, 831. Internal thread hole, 84. Hook, 9. First bottom plate, 10. Second bottom plate, 11. Third bottom plate. Specific embodiments

[0020] To clearly illustrate the technical features of this solution, the following describes this solution through specific embodiments.

[0021] As Figures 1 to 4 shown, a novel radiator free tensioning device includes a fuel tank 1 of a transformer and a radiator 2 connected to the fuel tank 1. A vertically extending first fixing rod 3 is fixedly provided on the side wall of the fuel tank 1, and a plurality of first connection holes 31 are formed in the first fixing rod 3 along the length direction.

[0022] Specifically, a first bottom plate 9 is welded on the side wall of the fuel tank 1, and the first fixing rod 3 and the first bottom plate 9 are fixedly connected by fastening bolts. In this embodiment, two first bottom plates 9 are welded on the side wall of the fuel tank 1. The two first bottom plates 9 are distributed up and down and are both provided with bolt holes. The first fixing rod 3 is an angle steel, and through holes are formed at the upper and lower ends of one side of the angle steel. The fastening bolts pass through the through holes and are threadedly connected with the bolt holes. The plurality of first connection holes 31 are located on the other side of the angle steel.

[0023] A second fixing rod 4 is fixedly provided at the bottom of the radiator 2. A first connecting plate 5 is fixedly connected to the second fixing rod 4, and a second connection hole 51 is formed in the first connecting plate 5. Specifically, a second bottom plate 10 is welded at the bottom of the radiator 2, and the second fixing rod 4 and the second bottom plate 10 are fixedly connected by fastening bolts. In this embodiment, the second fixing rod 4 is a channel steel, and the first connecting plate 5 is fixedly welded to the second fixing rod 4.

[0024] A third fixing rod 6 is fixedly arranged on the top of the radiator 2. A second connecting plate 7 is fixedly connected to the third fixing rod 6, and a third connecting hole 71 is formed in the second connecting plate 7. Specifically, a third bottom plate 11 is welded to the top of the radiator 2, and the third fixing rod 6 and the third bottom plate 11 are fixedly connected by fastening bolts. In this embodiment, the third fixing rod 6 is also a channel steel, and the second connecting plate 7 is fixedly connected to the third fixing rod 6 by welding.

[0025] A tensioning assembly 8 is connected between one of the first connecting holes 31 and the second connecting hole 51 of the first fixing rod 3, and the tensioning assembly 8 is also connected between the third connecting hole 71 and one of the first connecting holes 31 of the first fixing rod 3.

[0026] The tensioning assembly 8 includes opposite first screw rod 81 and second screw rod 82, and an internal thread joint 83. The ends of the first screw rod 81 and the second screw rod 82 close to each other are threadedly connected to the internal thread joint 83, and the thread directions at both ends of the internal thread joint 83 are opposite. Specifically, internal thread holes 831 are formed at both ends of the internal thread joint 83, and the thread directions of the two internal thread holes 831 are opposite. The ends of the first screw rod 81 and the second screw rod 82 close to each other are respectively provided with external threads that are threadedly matched with the two internal thread holes 831, so as to realize the forward and reverse rotation of the internal thread joint 83 to make the first screw rod 81 and the second screw rod 82 approach or move away from each other.

[0027] In this embodiment, the two tensioning assemblies 8 are distributed up and down. The ends of the first screw rod 81 and the second screw rod 82 of the tensioning assembly 8 located below and away from each other are respectively movably connected to the first connecting hole 31 and the second connecting hole 51. Similarly, it can be known that the ends of the first screw rod 81 and the second screw rod 82 of the tensioning assembly 8 located above and away from each other are respectively movably connected to the first connecting hole 31 and the third connecting hole 71.

[0028] Specifically, hooks 84 are provided at the ends of the first screw rod 81 and the second screw rod 82 away from each other. In this embodiment, the first screw rod 81 and the second screw rod 82 can be hooked on the corresponding connecting holes through the hooks 84, which is more convenient for installation.

[0029] Working principle: Two tensioning components 8 are distributed vertically. The first screw rod 81 of the lower tensioning component is hooked on one of the first connection holes 31 of the first fixing rod 3 through the hook 84, and the second screw rod 82 is hooked on the second connection hole 51 through the hook 84. The first screw rod 81 of the upper tensioning component 8 is hooked on one of the first connection holes 31 of the first fixing rod through the hook, and the second screw rod 82 is hooked on the third connection hole 71 through the hook. Rotate the internal thread joint 83 to make the first screw rod 81 and the second screw rod 82 approach each other, so as to realize tensioning the radiator 2, which can effectively relieve the stress at the pipe joint of the radiator and effectively prevent oil leakage at the interface between the fuel tank and the radiator.

[0030] Of course, the above description is not limited to the above examples. The technical features not described in the present utility model can be realized by or adopted from the prior art, and will not be elaborated here. The above embodiments and the accompanying drawings are only used to illustrate the technical solutions of the present utility model and are not a limitation to the present utility model. The present utility model has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present utility model do not depart from the purpose of the present utility model and should also fall within the scope of the protection of the claims of the present utility model.

Claims

1. A novel free tensioning device for a radiator, comprising an oil tank (1) of a transformer and a radiator (2) connected to the oil tank, characterized in that: A first fixing rod (3) extending vertically is fixedly provided on the side wall of the fuel tank (1). A plurality of first connection holes (31) are formed in the first fixing rod along the length direction. A second fixing rod (4) is fixedly provided at the bottom of the radiator (2). A first connecting plate (5) is fixedly connected to the second fixing rod. A second connection hole (51) is formed in the first connecting plate. A tensioning assembly (8) is connected between the first connection hole (31) and the second connection hole (51). The tensioning assembly includes a first screw rod (81) and a second screw rod (82) which are opposite to each other, and an internal thread joint (83). One ends of the first screw rod and the second screw rod close to each other are threadedly connected to the internal thread joint (83). The thread directions at both ends of the internal thread joint (83) are opposite. The other ends of the first screw rod and the second screw rod away from each other are movably connected to the first connection hole (31) and the second connection hole (51) respectively.

2. The novel radiator free tensioning device according to claim 1, characterized in that: A third fixing rod (6) is fixedly provided at the top of the radiator (2). A second connecting plate (7) is fixedly connected to the third fixing rod. A third connection hole (71) is formed in the second connecting plate. The tensioning assembly (8) is also connected between the third connection hole (71) and the first connection hole (31).

3. A novel radiator free-tensioning device according to claim 1, characterized in that: Hook (84) is provided at the other ends of the first screw rod (81) and the second screw rod (82) away from each other.

4. A novel radiator free-tightening device according to claim 1, characterized in that: A first bottom plate (9) is welded on the side wall of the fuel tank (1). The first fixing rod (3) and the first bottom plate are fixedly connected by fastening bolts.

5. A novel radiator free-tightening device according to claim 1, characterized in that: A second bottom plate (10) is welded at the bottom of the radiator (2). The second fixing rod (4) and the second bottom plate are fixedly connected by fastening bolts.

6. The novel radiator free tensioning device according to claim 2, characterized in that: A third bottom plate (11) is welded at the top of the radiator (2). The third fixing rod (6) and the third bottom plate are fixedly connected by fastening bolts.

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