Oil-immersed transformer with high oil tank installation precision

Abstract

The oil-immersed transformer comprises an oil tank main body, a transformer body is arranged at the upper end of the oil tank main body, radiating fins are arranged at the left end and the right end of the oil tank main body, a fixing sleeve is fixedly connected to the lower end of the oil tank main body, and an oil tank is arranged in the fixing sleeve. A fixing seat is arranged at the lower end of the fuel tank body and located on the inner side of the fixing sleeve, and sliding blocks are slidably connected into the front end and the rear end of the fixing seat. Through the effect of designing the mounting seat, the whole structure can be supported, mounted and fixed, a rotating rod is rotated to drive a first bevel gear to rotate so that a second bevel gear can drive a screw rod to rotate, then a threaded sleeve can do threaded motion, the threaded sleeve can drive a connecting block to move horizontally, and then the mounting seat can be driven to move horizontally; the connecting blocks at the two ends drive the mounting base to move synchronously, so that the mounting gravity center of the oil tank is kept in the center, and the mounting precision is higher and more stable after the mounting base is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-immersed transformers, in particular to an oil-immersed transformer with high oil tank installation accuracy. Background Art

[0002] The oil-immersed transformer is a new type of high-performance transformer with a more reasonable structure and better performance. Its three-dimensional wound core has three core columns arranged in an equilateral triangle, with no air gap in the magnetic circuit, tighter winding, and the three magnetic circuits are of the same length and the shortest. The cross-sectional area of ​​the core column is closer to a circle, so the performance is further improved, the loss is reduced, the noise is reduced, the three items are balanced, and the third harmonic component is reduced. This product is more suitable for urban and rural, industrial and mining enterprise power grid transformation, and is more suitable for combined transformers and prefabricated substation transformers. The utility model patent with announcement number CN217847612U discloses an oil-immersed transformer that is easy to install, including a box body, a delivery pump and a top plate. An oil inlet pipe is arranged at the water inlet on the right side of the delivery pump, and the end of the oil inlet pipe away from the delivery pump is arranged on the left side of the box body. A main pipe is arranged at the upper water outlet of the delivery pump, and two secondary pipes are arranged on the rear side of the main pipe. A number of evenly distributed branch pipes are arranged on the front side of the lower part of the secondary pipe, and the branch pipes all pass through a plurality of first fins. The ends of the branch pipes away from the secondary pipes are all arranged on the rear side of the box body. The patent uses a support frame and fastening bolts to facilitate the installation and fixing of oil-immersed transformers of different sizes on a support, making the installation very convenient. Through the first fin and the delivery pump, the temperature of the transformer oil is relatively balanced, and the body of the transformer can be quickly cooled to maintain the normal operation of the body.

[0003] However, in the above patent, during the use of the transformer, the overall structure is installed and used through the mounting seat at the bottom, but the mounting seat is adjusted and fixed by bolts, which needs to be operated manually, which makes it inconvenient to control the moving distance of the mounting seats at both ends, and the center of gravity of the transformer installation is not in the center position, the installation accuracy is insufficient, and the stability of the transformer installation is insufficient. Therefore, improvements are needed. Utility Model Content

[0004] The utility model aims to provide an oil-immersed transformer with high oil tank installation accuracy, thereby solving the problem of insufficient installation accuracy.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil-immersed transformer with high oil tank installation accuracy, comprising an oil tank body, a device body is arranged at the upper end of the oil tank body, cooling fins are arranged at both left and right ends of the oil tank body, a fixing sleeve is fixedly connected to the lower end of the oil tank body, a fixing seat is arranged at the lower end of the oil tank body and located on the inner side of the fixing sleeve, sliders are slidably connected to the interior of the front and rear ends of the fixing seat, a connecting block is fixedly connected to the end of the slider away from the fixing seat, the connecting block is slidably connected to the fixing seat, the lower end of the connecting block is fixedly connected to the mounting seat, an adjusting mechanism is arranged on the fixing seat, and a limiting mechanism is arranged on the adjusting mechanism.

[0006] Preferably, the adjustment mechanism includes a rotating rod, the front end of the fixed sleeve is internally rotatably connected with the rotating rod, the front end of the rotating rod is fixedly connected with a turning handle, the rotating rod is rotatably connected with the fixed seat through a bearing, the outer side of the rotating rod is fixedly sleeved with a first bevel gear, the left side of the first bevel gear is meshed with a second bevel gear, the inner side of the second bevel gear is fixedly sleeved with a screw, the screw is connected to the fixed seat through a bearing, the outer side of the screw is threadedly connected with two symmetrically distributed screw sleeves, the screw sleeve is slidably connected with the fixed seat, and the screw sleeve is fixedly connected with the connecting block. By designing the adjustment mechanism, it is convenient to adjust the position of the mounting seat.

[0007] Preferably, the screw is provided with positive threads and negative threads, and the positive threads and negative threads are symmetrically distributed on the screw. The screw is designed so that the rotation of the screw can realize the movement of the two screw sleeves in opposite directions.

[0008] Preferably, the limiting mechanism comprises a groove, the inner side wall of the fixing seat is provided with a groove, a protrusion is slidably connected inside the groove, a fixing rod is slidably connected inside the protrusion, a spring is arranged outside the fixing rod, a rotating disk is fixedly connected to one end of the fixing rod away from the protrusion, the rotating disk is rotatably connected to the fixing seat, and the rotating disk is fixedly connected to the rotating rod. By designing the limiting mechanism, a certain resistance can be provided to the rotation of the rotating rod.

[0009] Preferably, there are multiple grooves, which are annular and evenly distributed in the fixing seat. By designing multiple grooves, the protrusion can slide into the grooves at different positions.

[0010] Preferably, one end of the spring is fixedly connected to the projection, and the other end of the spring is fixedly connected to the rotating disk. The spring is designed so that the force of the spring can act on the projection.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model can support, install and fix the overall structure by designing the function of the mounting seat. By rotating the rotating rod to drive the first bevel gear to rotate, the second bevel gear can drive the screw to rotate, and then the screw sleeve can make a threaded movement. The screw sleeve can drive the connecting block to move horizontally, and then drive the mounting seat to move horizontally. Since the connecting blocks at both ends drive the mounting seat to move synchronously, the center of gravity of the oil tank installation is kept at the center, and the installation accuracy after the mounting seat is adjusted is higher and more stable.

[0013] 2. The utility model designs a rotatable connection between the turntable and the fixed seat so that the turntable can rotate relative to the fixed seat. Through the coordinated use of the grooves, the protrusions and the springs, a certain resistance can be applied to the rotation of the rotating rod, thereby preventing the rotating rod from rotating at will, improving the rotation stability of the rotating rod, and preventing the installation seat from moving due to accidental touch. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A three-dimensional cross-sectional view of the local structure;

[0016] Figure 3 For this utility model Figure 2 A front cross-sectional view of a fixing seat structure;

[0017] Figure 4 For this utility model Figure 3 A partial top view of a fixed seat;

[0018] Figure 5 For this utility model Figure 4 A magnified image of point A;

[0019] Figure 6 For this utility model Figure 5 Bottom view of the groove structure.

[0020] In the figure: 1. oil tank body; 2. body; 3. cooling fins; 4. fixing sleeve; 5. fixing seat; 6. sliding block; 7. connecting block; 8. adjusting mechanism; 9. limiting mechanism; 10. mounting seat; 81. rotating rod; 82. turning handle; 83. first bevel gear; 84. second bevel gear; 85. screw rod; 86. screw sleeve; 91. groove; 92. protrusion; 93. fixing rod; 94. spring; 95. turntable. DETAILED DESCRIPTION

[0021] 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 in 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.

[0022] See also Figure 1 , Figure 2 A kind of oil-immersed transformer with high oil tank installation accuracy includes an oil tank body 1, a body 2 is arranged at the upper end of the oil tank body 1, heat dissipation fins 3 are arranged at the left and right ends of the oil tank body 1, a fixing sleeve 4 is fixedly connected to the lower end of the oil tank body 1, a fixing seat 5 is arranged at the lower end of the oil tank body 1 and located on the inner side of the fixing sleeve 4, sliders 6 are slidably connected inside the front and rear ends of the fixing seat 5, a connecting block 7 is fixedly connected to the end of the slider 6 away from the fixing seat 5, the connecting block 7 is slidably connected to the fixing seat 5, the lower end of the connecting block 7 is fixedly connected to the mounting seat 10, an adjusting mechanism 8 is arranged on the fixing seat 5, and a limiting mechanism 9 is arranged on the adjusting mechanism 8.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The adjusting mechanism 8 includes a rotating rod 81, a rotating rod 81 is rotatably connected inside the front end of the fixed sleeve 4, a turning handle 82 is fixedly connected to the front end of the rotating rod 81, the rotating rod 81 is rotatably connected to the fixed seat 5 through a bearing, a first bevel gear 83 is fixedly sleeved on the outer side of the rotating rod 81, a second bevel gear 84 is meshed on the left side of the first bevel gear 83, a screw 85 is fixedly sleeved inside the second bevel gear 84, the screw 85 is connected to the fixed seat 5 through a bearing, the outer side of the screw 85 is threadedly connected to two symmetrically distributed screw sleeves 86, the screw 85 is provided with positive threads and negative threads, the positive threads and negative threads are symmetrically distributed on the screw 85, by designing the screw 85, the rotation of the screw 85 can realize the movement of the two screw sleeves 86 in opposite directions, the screw sleeve 86 is slidably connected to the fixed seat 5, the screw sleeve 86 is fixedly connected to the connecting block 7, and the adjusting mechanism 8 is designed to facilitate the position adjustment of the mounting seat 10.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6The limiting mechanism 9 includes a groove 91. The inner wall of the fixed seat 5 is provided with a groove 91. A protrusion 92 is slidably connected inside the groove 91. The number of grooves 91 is multiple. The multiple grooves 91 are annular and evenly distributed in the fixed seat 5. By designing multiple grooves 91, the protrusion 92 can slide into the grooves 91 at different positions. A fixing rod 93 is slidably connected inside the protrusion 92. A spring 94 is provided on the outer side of the fixing rod 93. One end of the spring 94 is fixedly connected to the protrusion 92, and the other end of the spring 94 is fixedly connected to the rotating disk 95. By designing the spring 94, the force of the spring 94 can act on the protrusion 92. The end of the fixing rod 93 away from the protrusion 92 is fixedly connected to the rotating disk 95. The rotating disk 95 is rotatably connected to the fixed seat 5, and the rotating disk 95 is fixedly connected to the rotating rod 81. By designing the limiting mechanism 9, a certain resistance can be provided to the rotation of the rotating rod 81.

[0025] The specific implementation process of the utility model is as follows: when in use, the overall structure can be supported, installed and fixed by the function of the mounting seat 10. When the position of the mounting seat 10 needs to be adjusted, the handle 82 is directly turned, the handle 82 drives the rotating rod 81 to rotate, the rotating rod 81 drives the first bevel gear 83 to rotate, the first bevel gear 83 drives the second bevel gear 84 to rotate, the second bevel gear 84 drives the screw 85 to rotate, and the screw 85 is connected with the screw sleeve 86 by thread, so that the screw sleeve 86 performs threaded movement, and the two screw sleeves 86 move in opposite directions, and the screw sleeve 86 drives the connecting block 7 to move and then drives the mounting seat 10 to rotate. Since the connecting blocks 7 at both ends drive the mounting seat 10 to move synchronously, the center of gravity of the oil tank installation is kept at the center, and the installation accuracy of the mounting seat 10 after adjustment is higher and more stable. When the rotating rod 81 rotates, it will also drive the rotating disk 95 to rotate. The rotating disk 95 drives the protrusion 92 to rotate along the groove 91. The protrusion 92 rotates along the arc surface of the groove 91 and will be squeezed to move horizontally. The protrusion 92 will slide along the fixed rod 93 and squeeze the spring 94, so that the protrusion 92 can slide out of the groove 91. When the protrusion 92 slides to the groove 91 at another position, it can be reset and inserted under the elastic action of the spring 94. Through the coordinated use of the groove 91, the protrusion 92 and the spring 94, a certain resistance can be applied to the rotation of the rotating rod 81, which can prevent the rotating rod 81 from rotating at will, improve the rotation stability of the rotating rod 81, and prevent the mounting base 10 from moving due to accidental touch.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-immersed transformer with high oil tank installation accuracy, comprising an oil tank body (1), characterized in that: The upper end of the oil tank body (1) is provided with a body (2), the left and right ends of the oil tank body (1) are provided with heat dissipation fins (3), the lower end of the oil tank body (1) is fixedly connected with a fixing sleeve (4), the lower end of the oil tank body (1) and located inside the fixing sleeve (4) is provided with a fixing seat (5), the front and rear ends of the fixing seat (5) are slidably connected with sliders (6), the end of the slider (6) away from the fixing seat (5) is fixedly connected with a connecting block (7), the connecting block (7) is slidably connected to the fixing seat (5), the lower end of the connecting block (7) is fixedly connected with a mounting seat (10), the fixing seat (5) is provided with an adjustment mechanism (8), and the adjustment mechanism (8) is provided with a limiting mechanism (9).

2. The oil-immersed transformer with high oil tank installation accuracy according to claim 1, characterized in that: The adjusting mechanism (8) comprises a rotating rod (81), the front end of the fixed sleeve (4) is rotatably connected to the rotating rod (81), the front end of the rotating rod (81) is fixedly connected to a turning handle (82), the rotating rod (81) is rotatably connected to the fixed seat (5) through a bearing, the outer side of the rotating rod (81) is fixedly sleeved with a first bevel gear (83), the left side of the first bevel gear (83) is meshed with a second bevel gear (84), the inner side of the second bevel gear (84) is fixedly sleeved with a screw rod (85), the screw rod (85) is connected to the fixed seat (5) through a bearing, the outer side of the screw rod (85) is threadedly connected to two symmetrically distributed screw sleeves (86), the screw sleeve (86) is slidably connected to the fixed seat (5), and the screw sleeve (86) is fixedly connected to the connecting block (7).

3. The oil-immersed transformer with high oil tank installation accuracy according to claim 2, characterized in that: The screw rod (85) is provided with positive threads and negative threads, and the positive threads and negative threads are symmetrically distributed on the screw rod (85).

4. The oil-immersed transformer with high oil tank installation accuracy according to claim 2, characterized in that: The limiting mechanism (9) comprises a groove (91), the inner side wall of the fixing seat (5) is provided with a groove (91), the interior of the groove (91) is slidably connected with a protrusion (92), the interior of the protrusion (92) is slidably connected with a fixing rod (93), a spring (94) is arranged on the outer side of the fixing rod (93), one end of the fixing rod (93) away from the protrusion (92) is fixedly connected with a rotating disk (95), the rotating disk (95) is rotatably connected to the fixing seat (5), and the rotating disk (95) is fixedly connected to the rotating rod (81).

5. The oil-immersed transformer with high oil tank installation accuracy according to claim 4, characterized in that: The number of the grooves (91) is multiple, and the multiple grooves (91) are annular and evenly distributed in the fixing seat (5).

6. The oil-immersed transformer with high oil tank installation accuracy according to claim 4, characterized in that: One end of the spring (94) is fixedly connected to the protrusion (92), and the other end of the spring (94) is fixedly connected to the rotating disk (95).

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