Oil-immersed transformer

Abstract

The utility model relates to a transformer, in particular to an oil-immersed transformer. Comprising a transformer, a supporting column, a rotating device, a bearing seat, a connecting plate, a lifting device, a supporting plate, a base and the like. A supporting column is arranged on the lower side of the transformer, the lower side of the supporting column is rotationally connected with a connecting plate, a bearing seat is arranged on the upper side of the connecting plate, a rotating device is arranged on the supporting column and the bearing seat, a lifting device is arranged on the lower side of the connecting plate, a supporting plate is arranged on the lower portion of the lifting device, and two bases are arranged on the lower side of the supporting plate. Through the design of the rotating device, the angle of the transformer can be conveniently adjusted, different installation and use requirements are met, the accuracy and stability of angle adjustment are ensured through the worm gear and the worm, and accidental angle change caused by external force is prevented through the self-locking performance of the worm gear and the worm.

Description

TECHNICAL FIELD

[0001] The utility model relates to a transformer especially relates to an oil immersed transformer. BACKGROUND

[0002] The oil immersed transformer is a kind of power equipment using electromagnetic induction principle to transform voltage, current and impedance, and its core components include iron core, winding, insulation, lead wire etc., and are immersed in transformer oil to cool and insulate.This kind of transformer usually adopts the sealed type corrugated oil tank shell filled with oil, can adapt to the expansion of oil, realizes permanent sealing.Oil immersed transformer has the advantages of good thermal stability, high mechanical strength, strong short-circuit resistance etc., and has been widely applied in power system, especially in power distribution equipment and new energy field.

[0003] Traditional oil immersed transformer usually adopts fixed installation mode, once installation is completed, its angle and height cannot be adjusted, in actual application, due to site restriction, installation demand or the need of operation and maintenance, sometimes the angle and height of transformer need to be adjusted, traditional fixed installation mode obviously cannot meet this demand, and brings inconvenience to the installation, use and maintenance of transformer. SUMMARY

[0004] In order to overcome the inconvenience of angle and height adjustment of oil immersed transformer after installation, the technical problem of the utility model is to provide an oil immersed transformer.

[0005] The technical implementation scheme of the utility model is as follows: an oil immersed transformer, comprising transformer, support column, rotating device, bearing seat, connecting plate, lifting device, support plate and base, the lower side of transformer is provided with support column, the lower side of support column is rotatably connected with connecting plate, the upper side of connecting plate is provided with bearing seat, rotating device is arranged on support column and bearing seat, lifting device is arranged on the lower side of connecting plate, support plate is arranged on the lower part of lifting device, two bases are arranged on the lower side of support plate.

[0006] More preferably, the rotating device comprises worm gear, worm and rocker, the worm gear is arranged on the support column, the worm is rotatably connected with the bearing seat, the worm gear and the worm are engaged, and the rocker is fixedly installed on the front side of the worm.

[0007] More preferably, the lifting device comprises telescopic frame and hydraulic cylinder, the sliding groove is formed on the connecting plate and the support plate, the upper and lower parts of one end of the telescopic frame are rotatably connected with the connecting plate and the support plate respectively, the upper and lower parts of the other end of the telescopic frame are slidably connected with the connecting plate and the support plate respectively, the hydraulic cylinder is rotatably arranged on the lower part of the telescopic frame, and the output shaft of the hydraulic cylinder is rotatably connected with the upper part of the telescopic frame.

[0008] More preferably, the utility model further comprises cover plate, and the cover plate is arranged on the connecting plate.

[0009] More preferably, the box door is further included, and the back side of the cover plate is slidably connected with two box doors.

[0010] More preferably, the lock catch is further included, and the lock catch is arranged on the two box doors and is provided with a through hole.

[0011] Beneficial effects are: 1. The utility model discloses a rotating device, which can conveniently adjust the angle of the transformer, meet different installation and use requirements, ensure the accuracy and stability of angle adjustment, prevent accidental change of the angle caused by external force through self-locking, and make the height of the transformer flexible to adapt to different working environments and space requirements, so that maintenance personnel can conveniently maintain and overhaul the transformer.

[0012] 2. The utility model discloses a cover plate, which can effectively block external dust, sundries and the like from entering the equipment, protect the key components such as the rotating device and the lifting device from damage, reduce the risk that the operator directly contacts the components, and make the operator conveniently check or maintain the components in the cover plate through the box door. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0014] Figure 2 It is a three-dimensional structure schematic view of the utility model without the cover plate and the box door.

[0015] Figure 3 It is a three-dimensional structure schematic view of the first bevel gear, the second bevel gear and the rocker arm.

[0016] Figure 4 It is a sectional view of the connecting plate, the lifting device and the supporting plate.

[0017] Figure 5 It is a three-dimensional structure schematic view when the lifting device is raised.

[0018] Figure 6 It is a three-dimensional structure schematic view of the lifting device.

[0019] Figure 7 It is a three-dimensional structure schematic view of the back side of the utility model.

[0020] The marks of various components in the drawings are as follows: 1, transformer, 2, support column, 3, worm wheel, 4, worm, 41, rocker arm, 5, bearing seat, 6, connecting plate, 7, lifting device, 71, telescopic frame, 72, hydraulic cylinder, 8, supporting plate, 9, base, 10, cover plate, 11, box door, 12, lock catch. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] An oil-immersed transformer, as shown in Figure 1 and Figure 2 , comprises a transformer 1, a support column 2, a rotating device, a bearing seat 5, a connecting plate 6, a lifting device 7, a support plate 8 and a base 9, the lower middle part of the transformer 1 is provided with the support column 2, the top middle part of the connecting plate 6 is provided with a thrust bearing, the top part of the support column 2 is installed in the inner ring of the thrust bearing, the support column 2 is rotationally connected with the connecting plate 6 through the thrust bearing, the front and rear parts of the left side of the connecting plate 6 are both installed with the bearing seat 5, the support column 2 and the bearing seat 5 are provided with the rotating device, the lower side of the connecting plate 6 is provided with the lifting device 7, the lower part of the lifting device 7 is provided with the support plate 8, and the bottom of the support plate 8 is provided with two bases 9 at the left and right sides.

[0023] The utility model is installed through the base 9, when it is needed to adjust the angle of the transformer 1, the rotating device drives the support column 2 to rotate, the support column 2 drives the transformer 1 to rotate, after the transformer 1 is rotated to the appropriate angle, the rotating device is stopped, when it is needed to raise the height of the transformer 1, the lifting device 7 is started, the lifting device 7 will drive the connecting plate 6 to move upwards, the movement of the connecting plate 6 will drive each part on it to move upwards to the appropriate position, the purpose of raising the height of the transformer 1 is achieved, and similarly, when it is needed to lower the height of the transformer 1, the lifting device 7 is started reversely, and the height of the transformer 1 is lowered.

[0024] As shown in Figure 2 and Figure 3As shown, the rotating device includes worm gear 3, worm 4 and rocker 41, the support column 2 is provided with worm gear 3 circumferentially, bearing seat 5 is rotatably connected with worm 4, worm gear 3 and worm 4 are engaged, rocker 41 is fixedly installed on the front side of worm 4, the operator can drive worm 4 to rotate by shaking the rocker 41, the rotation of worm 4 will drive worm gear 3 to rotate, since the worm gear 3 is fixedly connected with the support column 2, thus the rotation of the worm gear 3 will cause the support column 2 and the transformer 1 thereon to rotate together, thereby achieving the purpose of adjusting the angle of the transformer 1, the characteristic of the worm gear 3 and worm 4 mechanism is large transmission ratio, with self-locking, that is, when external force acts on the worm gear 3, the worm 4 will not automatically reverse, which ensures the stability of the transformer 1 after adjusting the angle, at the same time, due to the characteristics of the worm gear 3 and worm 4 mechanism, the operator needs a certain force when shaking the rocker 41, thereby avoiding the accidental change of the angle of the transformer 1 due to misoperation.

[0025] As shown in Figures 4 to 6 The lifting device 7 includes telescopic frame 71 and hydraulic cylinder 72, the connecting plate 6 and the support plate 8 are both provided with a sliding groove, the upper and lower parts of one end of the telescopic frame 71 are rotatably connected with the connecting plate 6 and the support plate 8 respectively, the upper and lower parts of the other end of the telescopic frame 71 are slidably connected with the sliding grooves on the connecting plate 6 and the support plate 8 respectively, the sliding grooves on the connecting plate 6 and the support plate 8 will play a guiding and limiting role, ensuring that the telescopic frame can move along the predetermined track, the lower part of the telescopic frame 71 is rotatably provided with the hydraulic cylinder 72, the output shaft of the hydraulic cylinder 72 is rotatably connected with the upper part of the telescopic frame 71, when it is needed to raise the height of the transformer 1, the hydraulic cylinder 72 is started, the output shaft of the hydraulic cylinder 72 is extended, since one end of the telescopic frame 71 is rotatably connected with the connecting plate 6 and the support plate 8, and the other end is slidably connected, the upper part of the telescopic frame 71 will move upward under the drive of the output shaft of the hydraulic cylinder 72, driving the connecting plate 6 and each component (including the transformer 1) thereon to move upward, after the transformer 1 moves to the appropriate height, the hydraulic cylinder 72 stops working, similarly, when it is needed to lower the height of the transformer 1, the hydraulic cylinder 72 is started in reverse, the output shaft of the hydraulic cylinder 72 is retracted, thereby driving the connecting plate 6 and each component (including the transformer 1) thereon to move downward to the required height position.

[0026] As shown in Figure 1 It also includes a cover plate 10, the connecting plate 6 is provided with the cover plate 10 circumferentially, the rotating device and the lifting device 7 are located in the cover plate 10, the cover plate 10 wraps the rotating device and the lifting device 7 and other components, blocking the external dust or sundries from entering, and also providing a layer of safety isolation, reducing the risk of the operator directly contacting these components when the rotating device or the lifting device 7 is working.

[0027] As shown in Figure 7As shown, the cover plate 10 is provided with two box doors 11, and the rear side of the cover plate 10 is slidably connected with the two box doors 11. The box doors 11 are provided with handles, and the box doors 11 can be opened or closed by pulling the handles. The box doors 11 are provided to facilitate the operator to check or maintain the rotating device, the lifting device 7 or other components inside the cover plate 10. When the internal components need to be checked or maintained, the operator can push or pull the box doors 11 to move on the sliding rail and open the box doors 11.

[0028] As shown, the cover plate 10 is provided with two box doors 11, and the rear side of the cover plate 10 is slidably connected with the two box doors 11. The box doors 11 are provided with handles, and the box doors 11 can be opened or closed by pulling the handles. The box doors 11 are provided to facilitate the operator to check or maintain the rotating device, the lifting device 7 or other components inside the cover plate 10. When the internal components need to be checked or maintained, the operator can push or pull the box doors 11 to move on the sliding rail and open the box doors 11. Figure 7 As shown, the cover plate 10 is provided with two box doors 11, and the rear side of the cover plate 10 is slidably connected with the two box doors 11. The box doors 11 are provided with handles, and the box doors 11 can be opened or closed by pulling the handles. The box doors 11 are provided to facilitate the operator to check or maintain the rotating device, the lifting device 7 or other components inside the cover plate 10. When the internal components need to be checked or maintained, the operator can push or pull the box doors 11 to move on the sliding rail and open the box doors 11.

[0029] Although the present disclosure has been shown and described with respect to certain exemplary embodiments thereof, it should be understood by the skilled in the art that various changes in form and details can be made without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-described embodiments, but should be defined by the appended claims and their equivalents.

Claims

1. An oil-immersed transformer, characterized by comprising: The utility model provides a transformer lifting device, including transformer (1), support column (2), rotating device, bearing seat (5), connecting plate (6), lifting device (7), support plate (8) and base (9), transformer (1) lower side is equipped with support column (2), support column (2) lower side is rotatably connected with connecting plate (6), connecting plate (6) upper side is equipped with bearing seat (5), support column (2) and bearing seat (5) are equipped with rotating device, connecting plate (6) lower side is equipped with lifting device (7), lifting device (7) lower part is equipped with support plate (8), support plate (8) lower side is equipped with two base (9).

2. An oil immersed transformer according to claim 1, characterised in that Rotating device includes worm wheel (3), worm (4) and rocker (41), support column (2) is equipped with worm wheel (3), bearing seat (5) rotatably connected with worm (4), worm wheel (3) and worm (4) are engaged, and worm (4) front side is fixedly installed with rocker (41).

3. An oil immersed transformer according to claim 2, characterised in that Lifting device (7) includes telescopic frame (71) and hydraulic cylinder (72), and connecting plate (6) and support plate (8) are all opened in sliding slot, Telescopic frame (71) one end upper and lower parts are rotatably connected with connecting plate (6) and support plate (8) respectively, and the other end upper and lower parts are slidably connected with connecting plate (6) and support plate (8) respectively, and telescopic frame (71) lower part rotatably is equipped with hydraulic cylinder (72), and the output shaft of hydraulic cylinder (72) is rotatably connected with telescopic frame (71) upper part.

4. An oil immersed transformer according to claim 3, characterised in that Still include cover plate (10), connecting plate (6) is equipped with cover plate (10).

5. An oil immersed transformer according to claim 4, characterised in that Still include box door (11), and cover plate (10) rear side slidably connected with two box doors (11).

6. An oil immersed transformer according to claim 5, characterised in that Still include lock catch (12), and two box doors (11) are all equipped with lock catch (12), and lock catch (12) is opened in through -hole.

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