Movable dry-type transformer

Abstract

The invention relates to the technical field of transformers, and discloses a movable dry-type transformer which comprises a transformer body, a plurality of sets of heat dissipation protruding plates are arranged on the outer surfaces of the two sides of the transformer body, a heat dissipation groove is formed between every two adjacent sets of heat dissipation protruding plates, and a cleaning cylinder is slidably arranged in each heat dissipation groove. The outer surface of the cleaning cylinder is provided with a first brush used for removing dust on the surface of the heat dissipation protruding plate. A servo motor is fixed to the outer surface of the transformer body, a worm is fixed to the output end of the servo motor, a reciprocating lead screw is rotationally arranged in the heat dissipation groove, a worm gear is fixed to the top of the reciprocating lead screw, and the worm gear is meshed with the worm. According to the technical scheme, the cleaning cylinders are arranged on the two sides of the heat dissipation protruding plate, the first brushes are arranged on the cleaning cylinders, and the first brushes move up and down, so that the first brushes can clean the surfaces of the two sides of the heat dissipation protruding plate, and dust removal treatment can be conveniently conducted on the heat dissipation protruding plate.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, in particular to a mobile dry-type transformer. Background Art

[0002] Mobile dry-type transformer is a kind of explosion-proof mobile substation for mines, which is used for mine power transformation. Mobile dry-type transformer includes explosion-proof dry-type transformer for mines, explosion-proof high-voltage load switch box, and explosion-proof low-voltage feeder switch box. The explosion-proof dry-type transformer for mines is a transformer that does not require the use of liquid insulating medium, but uses dry insulating materials to isolate the windings and the casing. Therefore, mobile dry-type transformers are easier to install and maintain, and are also more environmentally friendly.

[0003] In order to facilitate heat dissipation, heat dissipation convex plates are generally provided on both sides of the shell of the mobile dry-type transformer. The heat dissipation convex plates are arranged at equal intervals on both sides of the shell. However, since the working environment of the mobile dry-type transformer is in a mine, and dust is easily generated in the mine, dust is easily accumulated on the heat dissipation convex plates of the mobile dry-type transformer during use. When dust accumulates on the surface of the heat dissipation convex plates, if it cannot be cleaned in time, the heat dissipation effect of the heat dissipation convex plates will be affected, which is not conducive to the heat dissipation of the mobile dry-type transformer. Summary of the invention

[0004] The present invention provides a mobile dry-type transformer. A cleaning cylinder is arranged on both sides of a heat dissipation convex plate, and a first brush is arranged on the cleaning cylinder. The first brush can be used to remove dust from both sides of the heat dissipation convex plate, thereby solving the problem mentioned in the above background technology that when dust falls on the surface of the heat dissipation convex plate, if it cannot be cleaned in time, the heat dissipation effect of the heat dissipation convex plate will be affected, thereby being detrimental to the heat dissipation of the mobile dry-type transformer.

[0005] The present invention provides the following technical solution: a mobile dry-type transformer, comprising a transformer body, wherein the outer surfaces of both sides of the transformer body are provided with a plurality of groups of heat dissipation convex plates, a heat dissipation groove is provided between two adjacent groups of the heat dissipation convex plates, a cleaning cylinder is slidably provided in the heat dissipation groove, and the outer surface of the cleaning cylinder is provided with a first brush for removing dust from the surface of the heat dissipation convex plate; A reciprocating screw is rotatably arranged inside the heat dissipation groove, a movable seat is threadedly connected to the circumference of the reciprocating screw, the movable seat is slidably arranged in the heat dissipation groove, a rotating shaft is rotatably arranged on the movable seat, a toothed plate is fixed on the inner wall of the heat dissipation groove, a gear is fixed on the circumference of the rotating shaft, and one end of the cleaning cylinder is fixedly connected to the rotating shaft.

[0006] As an optional solution of the mobile dry-type transformer of the present invention, the top and the bottom of the heat dissipation convex plate are both provided with a receiving groove for accommodating the cleaning cylinder.

[0007] As an optional solution for the mobile dry-type transformer described in the present invention, a servo motor is fixed to the outer surface of the transformer body, a worm is fixed to the output end of the servo motor, a worm wheel is fixed to the top of the reciprocating screw, the worm wheel is meshed with the worm, the worm and the worm wheel are both rotatably arranged inside the transformer body, and the gear is meshed with the tooth plate.

[0008] As an optional solution for the mobile dry-type transformer described in the present invention, a sliding groove is provided inside the cleaning cylinder, a slider is slidably arranged inside the sliding groove, one end of the slider is rotatably connected to a core rod, a slideway is provided on the inner wall of the heat dissipation groove, the core rod passes through the rotating shaft and the movable seat, and the end of the core rod is slidably arranged in the slideway, a second brush is slidably arranged inside the cleaning cylinder, and the second brush slides inside the sliding groove through the slider and extends from the inside of the cleaning cylinder.

[0009] As an optional solution of the mobile dry-type transformer described in the present invention, a guide groove connected to the slideway is opened inside the transformer body, a sliding boss is fixed to the end of the core rod, the sliding boss is slidably set in the guide groove, and the guide groove includes an inclined portion and a vertical portion that are connected.

[0010] As an optional solution for the mobile dry-type transformer described in the present invention, a movable groove is provided inside the cleaning cylinder, a bottom plate is slidably provided inside the movable groove, the end of the second brush is fixedly provided on the bottom plate, a connecting rod is fixed on the surface of the bottom plate, a limiting ball is fixed on the end of the connecting rod, and a limiting groove for the limiting ball to slide is provided inside the slider.

[0011] As an optional solution for the mobile dry-type transformer described in the present invention, a first hydraulic oil groove and a second hydraulic oil groove are provided inside the transformer body, a first piston plate is slidably arranged inside the first hydraulic oil groove, a push rod is fixed to the upper surface of the first piston plate, the end of the push rod is elastically arranged at the bottom end of the guide groove, an oil delivery groove is connected between the first hydraulic oil groove and the second hydraulic oil groove, a second piston plate is elastically arranged inside the second hydraulic oil groove, and an air port is connected between one side of the second hydraulic oil groove and the receiving groove at the bottom.

[0012] As an optional solution for the mobile dry-type transformer described in the present invention, a spring groove is provided on one side of the guide groove, a cross plate is fixed to the end of the push rod, one end of the cross plate is slidably arranged in the spring groove, a first spring is fixed between the top of the spring groove and the cross plate, and a second spring is fixed between the surface of the second piston plate and the inner wall of the second hydraulic oil groove.

[0013] As an optional solution for the mobile dry-type transformer described in the present invention, a sealing plate is slidably provided on the air port, a cavity for the sealing plate to slide is opened inside the transformer body, a force-bearing plate is fixed on the top of the sealing plate, the force-bearing plate is slidably provided in the cavity, a third spring is fixed between the top of the cavity and the force-bearing plate, a first trapezoidal block is fixed on the outer surface of the sealing plate, and a second trapezoidal block for contacting with the first trapezoidal block is fixed on the surface of the second piston plate.

[0014] As an optional solution for the mobile dry-type transformer described in the present invention, an air storage groove is provided below the second hydraulic oil groove, a vent is provided between the air storage groove and the second hydraulic oil groove, a third piston plate is slidably provided inside the air storage groove, and a fourth spring is fixed between one side of the third piston plate and the inner wall of the air storage groove.

[0015] The present invention has the following beneficial effects: 1. In the mobile dry-type transformer, when the heat dissipation convex plate is dusted, the servo motor drives the worm to rotate, the rotation of the worm drives the worm wheel to rotate, and the rotation of the worm wheel drives the reciprocating screw to rotate, so that the moving seat moves on the reciprocating screw, and the moving seat drives the cleaning cylinder to move, and the cleaning cylinder drives the first brush to move along the surface of the heat dissipation convex plate, so that the first brush cleans and removes dust from the surface of the heat dissipation convex plate, thereby facilitating the removal of dust on the surface of the heat dissipation convex plate and reducing the influence of dust on the heat dissipation convex plate. At the same time, when the moving seat drives the cleaning cylinder to move, the gear can drive the rotating shaft to rotate through the meshing action of the gear and the tooth plate, and the rotation of the rotating shaft drives the first brush to rotate by itself, so that when the first brush moves up and down along the surface of the heat dissipation convex plate, the cleaning effect can be increased through self-rotation, and the dust removal ability is further improved.

[0016] 2. In the mobile dry-type transformer, when the cleaning cylinder moves downward, the cleaning cylinder first moves from the top storage groove to the inside of the heat dissipation groove. During this process, the cleaning cylinder drives the core rod to move, and the core rod drives the sliding protrusion to slide inside the guide groove, thereby driving the core rod to move. The movement of the core rod drives the slider to slide in the sliding groove, so that the second brush can extend from the inside of the cleaning cylinder, so that the second brush fits with the top surface of the heat dissipation convex plate, and at the same time, with the rotation of the cleaning cylinder, the second brush can clean and remove dust from the top surface of the heat dissipation convex plate, thereby improving the adequacy of dust removal on the heat dissipation convex plate and further improving the dust removal effect.

[0017] 3. In the mobile dry-type transformer, when the sliding boss moves downward along the guide groove, when the sliding boss moves to the cross plate, it conflicts with the cross plate, and then drives the cross plate to move downward. The downward movement of the cross plate drives the push rod and the first piston plate to move downward, so that the hydraulic oil inside the first hydraulic oil groove is filled into the second hydraulic oil groove through the oil delivery groove, thereby pushing the second piston plate to move. The movement of the second piston plate compresses the gas into the gas storage groove. When the first trapezoidal block conflicts with the second trapezoidal block, the sealing plate moves, the air port is opened, and the gas inside the gas storage groove is blown out through the air port, so as to facilitate the dust falling on the bottom storage groove to be blown away. At the same time, the fourth spring is used to push the third piston plate to reset and the kinetic energy generated by the compressed gas when it is released instantly is beneficial to increase the force of blowing the gas out of the air port, thereby further improving the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 For the present invention Figure 1 A top view of the structure of the cleaning cylinder part.

[0020] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0021] Figure 4 For the present invention Figure 3 Enlarged view of point B in the middle.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the cleaning cylinder and the bottom part of the transformer body of the present invention.

[0023] Figure 6 For the present invention Figure 5 Enlarged view of center C.

[0024] Figure 7 For the present invention Figure 5 Enlarged view of point D in the middle.

[0025] Figure 8 For the present invention Figure 7 Enlarged view of point E in the middle.

[0026] Fig. 9 It is a schematic structural diagram of the slider and the second brush part of the present invention.

[0027] In the figure: 1, transformer body; 2, heat dissipation convex plate; 3, heat dissipation groove; 4, cleaning cylinder; 5, first brush; 6, servo motor; 7, worm; 8, reciprocating screw; 9, worm wheel; 10, moving seat; 11, rotating shaft; 12, storage groove; 13, tooth plate; 14, gear; 15, sliding groove; 16, slider; 17, core rod; 18, slideway; 19, second brush; 20, guide groove; 201, inclined part; 202, vertical part; 21, sliding convex column; 22, movable groove; 23, bottom plate; 24, connecting rod; 25, Limiting ball; 26, limiting groove; 27, first hydraulic oil groove; 28, second hydraulic oil groove; 29, first piston plate; 30, push rod; 31, oil delivery groove; 32, second piston plate; 33, blowing port; 34, spring groove; 35, cross plate; 36, first spring; 37, second spring; 38, blocking plate; 39, cavity; 40, force plate; 41, third spring; 42, first trapezoidal block; 43, second trapezoidal block; 44, air storage groove; 45, vent; 46, third piston plate; 47, fourth spring; 48, moving groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] For example, see Figure 1-Figure 9 A mobile dry-type transformer comprises a transformer body 1, a plurality of heat dissipation convex plates 2 are arranged on the outer surfaces of both sides of the transformer body 1, a heat dissipation groove 3 is arranged between two adjacent groups of heat dissipation convex plates 2, a cleaning cylinder 4 is slidably arranged in the heat dissipation groove 3, and a first brush 5 for removing dust from the surface of the heat dissipation convex plate 2 is arranged on the outer surface of the cleaning cylinder 4; A servo motor 6 is fixed to the outer surface of the transformer body 1, a worm 7 is fixed to the output end of the servo motor 6, a reciprocating screw 8 is rotatably arranged inside the heat dissipation groove 3, a worm wheel 9 is fixed to the top of the reciprocating screw 8, the worm wheel 9 is meshed with the worm 7, the worm 7 and the worm wheel 9 are both rotatably arranged inside the transformer body 1, a moving seat 10 is threadedly connected on the circumference of the reciprocating screw 8, the moving seat 10 is slidably arranged in the heat dissipation groove 3, a rotating shaft 11 is rotatably arranged on the moving seat 10, and one end of the cleaning cylinder 4 is fixedly connected to the rotating shaft 11; The top and bottom of the heat dissipation convex plate 2 are both provided with a receiving groove 12 for accommodating the cleaning cylinder 4; A toothed plate 13 is fixed on the inner wall of the heat dissipation groove 3 , and a gear 14 is fixed on the circumference of the rotating shaft 11 . The gear 14 meshes with the toothed plate 13 .

[0030] In the present technical scheme, a plurality of cleaning cylinders 4 are provided, which are respectively arranged between two adjacent groups of heat dissipation convex plates 2, and a plurality of cleaning cylinders 4 move synchronously. When it is necessary to remove dust from the heat dissipation convex plates 2 on both sides of the transformer body 1, the servo motor 6 is first used to drive the worm 7 to rotate, and the worm 7 drives the worm wheel 9 to rotate. The rotation of the worm wheel 9 drives the reciprocating screw 8 to rotate, and the rotation of the reciprocating screw 8 drives the moving seat 10 to slide inside the heat dissipation groove 3. The two sides of the moving seat 10 are engaged in the heat dissipation groove 3, and the moving seat 10 can be limited so that the reciprocating screw 8 can only drive the moving seat 10 to move up and down when rotating, and the moving seat 10 will not be deflected. When the moving seat 10 slides downward along the heat dissipation groove 3, the moving seat 10 drives the rotating shaft 11 to move downward, and the rotating shaft 11 drives the cleaning cylinder 4 to move downward, and the cleaning cylinder 4 drives the first brush 5 to move downward, so that the first brush 5 removes dust from the surfaces of both sides of the heat dissipation convex plates 2; At the same time, through the provided gear 14 and tooth plate 13, when the rotating shaft 11 moves downward, the gear 14 is driven to move downward, and the meshing action of the gear 14 and the tooth plate 13 makes the gear 14 rotate, and the rotation of the gear 14 drives the rotating shaft 11 to rotate, and the rotation of the rotating shaft 11 drives the cleaning cylinder 4 to rotate, and the rotation of the cleaning cylinder 4 drives the first brush 5 to rotate, so that the first brush 5 can rotate when moving up and down, thereby improving the dust removal effect on the surfaces of both sides of the heat dissipation convex plate 2, and the first brush 5 is closely distributed on the circumference of the cleaning cylinder 4, which can reduce the cleaning dead angles on the surfaces of both sides of the heat dissipation convex plate 2 and increase the adequacy of dust removal.

[0031] In the second embodiment, when the heat dissipation convex plate 2 is dusted, the first brush 5 can only perform dust removal on the two side surfaces of the heat dissipation convex plate 2, so that the top surface of the heat dissipation convex plate 2 cannot be cleaned, thereby reducing the dust removal effect of the heat dissipation convex plate 2 and affecting the heat dissipation of the heat dissipation convex plate 2. To address this problem, this embodiment is an improvement made on the basis of the first embodiment. For details, please refer to Figure 1-Figure 9 A sliding groove 15 is provided inside the cleaning cylinder 4, a slider 16 is slidably provided inside the sliding groove 15, one end of the slider 16 is rotatably connected to a core rod 17, a slideway 18 is provided on the inner wall of the heat dissipation groove 3, the core rod 17 penetrates the rotating shaft 11 and the movable seat 10, and the end of the core rod 17 is slidably provided in the slideway 18, a second brush 19 is slidably provided inside the cleaning cylinder 4, and the second brush 19 slides inside the sliding groove 15 through the slider 16 and extends from the inside of the cleaning cylinder 4; A guide groove 20 connected to the slideway 18 is provided inside the transformer body 1. A sliding boss 21 is fixed to the end of the core rod 17. The sliding boss 21 is slidably disposed in the guide groove 20. The guide groove 20 includes an inclined portion 201 and a vertical portion 202 connected to each other. A movable groove 22 is provided inside the cleaning cylinder 4, and a bottom plate 23 is slidably provided inside the movable groove 22. The end of the second brush 19 is fixedly provided on the bottom plate 23. A connecting rod 24 is fixed on the surface of the bottom plate 23. A limiting ball 25 is fixed at the end of the connecting rod 24. A limiting groove 26 for the limiting ball 25 to slide is provided inside the slider 16.

[0032] In the present technical solution, when the cleaning cylinder 4 moves from the top receiving groove 12 to the bottom receiving groove 12, the cleaning cylinder 4 first drives the core rod 17 to move downward, the core rod 17 slides inside the slideway 18, and at the same time drives the sliding protrusion 21 to slide inside the guide groove 20. Figure 6 As shown in FIG. 1 , when the sliding boss 21 slides downward along the inclined portion 201, the sliding boss 21 drives the core rod 17 to move rightward, and the core rod 17 moves rightward and drives the slider 16 to move rightward in the sliding groove 15, as shown in FIG. Figure 4 As shown, taking the second brush 19 at the top as an example, when the slider 16 moves to the right, due to the interference between the limiting ball 25 and the limiting groove 26, the limiting ball 25 is prompted to move upward along the limiting groove 26, and the slider 16 is provided with a moving groove 48 for the connecting rod 24 to slide, and the limiting groove 26 is provided on the inner wall of the moving groove 48. The limiting ball 25 moves upward to drive the connecting rod 24 to move upward, and at the same time, the connecting rod 24 slides inside the moving groove 48, and the connecting rod 24 drives the bottom plate 23 to move upward, and the bottom plate 23 drives the second brush 19 to move upward, and push the second brush 19 out of the cleaning cylinder 4. At this time, the pushed out second brush 19 contacts the top surface of the heat dissipation convex plate 2, and then the sliding convex column 21 slides along the vertical portion 202, so that the cleaning cylinder 4 moves downward. At this time, the cleaning cylinder 4 moves downward and rotates, thereby driving the second brush 19 to rotate, so that the second brush 19 removes dust from the top surface of the heat dissipation convex plate 2, further increasing the adequacy of dust removal; In the present technical solution, when the cleaning cylinder 4 slides from the top storage groove 12 to the inside of the heat dissipation groove 3, the sliding protrusion 21 slides from the inclined portion 201 to the vertical portion 202, so that when the cleaning cylinder 4 slides to the inside of the heat dissipation groove 3, the second brush 19 is fully extended from the inside of the cleaning cylinder 4, so that when the first brush 5 cleans the two side surfaces of the heat dissipation convex plate 2, the second brush 19 cleans the top surface of the heat dissipation convex plate 2; like Fig. 9As shown, in the present application, eight groups of second brushes 19 are provided, and the eight groups of second brushes 19 are evenly distributed on the circumference of the cleaning cylinder 4, and each group of second brushes 19 is provided in a cluster. First, when the cleaning cylinder 4 is located in the storage groove 12 at the top, the second brush 19 is stored in the interior of the cleaning cylinder 4. First, it can reduce the second brush 19 from being exposed and occupying a large space, and second, it can protect the second brush 19 and avoid the problem of being easily damaged due to long-term exposure to the outside. In addition, the length of the second brush 19 extending out of the cleaning cylinder 4 is half of the top surface of the heat dissipation convex plate 2, and the two groups of second brushes 19 cooperate to complete the overall cleaning of the top surface of the heat dissipation convex plate 2.

[0033] Embodiment 3: When the first brush 5 removes dust from the two side surfaces of the heat dissipation convex plate 2, a small amount of dust will fall into the storage groove 12 at the bottom. It is inconvenient to clean it with a brush, which will cause dust accumulation and affect the dust removal effect. To solve this problem, this embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figure 1-Figure 9 The transformer body 1 is provided with a first hydraulic oil groove 27 and a second hydraulic oil groove 28. A first piston plate 29 is slidably arranged inside the first hydraulic oil groove 27. A push rod 30 is fixed to the upper surface of the first piston plate 29. The end of the push rod 30 is elastically arranged at the bottom end of the guide groove 20. An oil delivery groove 31 is arranged between the first hydraulic oil groove 27 and the second hydraulic oil groove 28. A second piston plate 32 is elastically arranged inside the second hydraulic oil groove 28. A blowing port 33 is arranged between one side of the second hydraulic oil groove 28 and the bottom receiving groove 12. A spring groove 34 is provided on one side of the guide groove 20, a transverse plate 35 is fixed to the end of the push rod 30, one end of the transverse plate 35 is slidably disposed in the spring groove 34, a first spring 36 is fixed between the top of the spring groove 34 and the transverse plate 35, and a second spring 37 is fixed between the surface of the second piston plate 32 and the inner wall of the second hydraulic oil groove 28; A blocking plate 38 is slidably provided on the air outlet 33, a cavity 39 is provided inside the transformer body 1 for the blocking plate 38 to slide, a force-bearing plate 40 is fixed on the top of the blocking plate 38, the force-bearing plate 40 is slidably provided in the cavity 39, a third spring 41 is fixed between the top of the cavity 39 and the force-bearing plate 40, a first trapezoidal block 42 is fixed on the outer surface of the blocking plate 38, and a second trapezoidal block 43 for contacting the first trapezoidal block 42 is fixed on the surface of the second piston plate 32; An air storage groove 44 is provided below the second hydraulic oil groove 28 , an air vent 45 is provided between the air storage groove 44 and the second hydraulic oil groove 28 , a third piston plate 46 is slidably provided inside the air storage groove 44 , and a fourth spring 47 is fixed between one side of the third piston plate 46 and the inner wall of the air storage groove 44 .

[0034] In the present technical solution, when the cleaning cylinder 4 moves downward and drives the core rod 17 to move downward, the core rod 17 drives the sliding protrusion 21 to slide downward along the vertical portion 202. When the sliding protrusion 21 is about to slide to the bottom end of the vertical portion 202, as shown in FIG. Figure 7 As shown, the sliding boss 21 continues to slide downward, at this time the sliding boss 21 contacts the cross plate 35 downward, so that the cross plate 35 drives the push rod 30 to move downward, and the cross plate 35 moves downward to stretch the first spring 36, so that the first spring 36 accumulates force, and the push rod 30 moves downward to drive the first piston plate 29 to move downward, and the first piston plate 29 fills the hydraulic oil inside the first hydraulic oil groove 27 into the second hydraulic oil groove 28 through the oil delivery groove 31. After the second hydraulic oil groove 28 is filled with hydraulic oil, it pushes the second piston plate 32 to move rightward, so that the second piston plate 32 fills the air on the right side into the air storage groove 44 through the air vent 45. At this time, the second spring 37 and the third spring 41 are compressed and accumulated force, and when the sliding boss 21 continues to slide downward to the bottom of the vertical portion 202, at this time the first brush 5 and the second brush 19 complete the overall dust removal of the heat dissipation convex plate 2, and the hydraulic oil continues to be filled into the second hydraulic oil groove 28. The second piston plate 32 continues to move rightward, and the gas is compressed to The gas storage groove 44 is kept in the air storage groove 44 until the second piston plate 32 drives the second trapezoidal block 43 to contact the first trapezoidal block 42, so that the first trapezoidal block 42 moves upward, and the first trapezoidal block 42 moves upward to drive the blocking plate 38 to move upward, and the blocking plate 38 moves upward to drive the force plate 40 to move upward inside the cavity 39, and the force plate 40 moves upward to compress the fourth spring 47, so that the fourth spring 47 accumulates force, and the blocking plate 38 moves upward, so that the blocking plate 38 opens the blowing port 33. At this time, the third spring 41 releases force and pushes the third piston plate 46 to reset, so that the third piston plate 46 instantly discharges the gas inside the gas storage groove 44 from the blowing port 33 through the vent 45, and uses the instantly blown gas to blow away the dust inside the bottom receiving groove 12. Compared with directly blowing the gas out of the blowing port 33 through the second piston plate 32, the force of the gas blowing is increased, which is conducive to increasing the effect of dust blowing, thereby facilitating the dust blowing off on the bottom receiving groove 12; In the present technical scheme, an air inlet connected to the outside is opened on one side of the air storage groove 44, and a one-way valve (not shown in the figure) is installed in the air inlet, so that the air inlet can only take in air from the outside to the inside of the air storage groove 44, and cannot exhaust air from the air inlet to the outside. Therefore, when blowing, the one-way valve is closed, and the compressed gas in the air storage groove 44 will not be blown out through the air inlet, but will be blown out through the air vent 45 and the blowing port 33; when the second piston plate 32 performs a reset movement to the left, the sliding boss 21 first moves upward along the vertical portion 202, the cross plate 35 loses the resistance of the sliding boss 21, the first spring 36 releases force, driving the push rod 30 to move upward, and the upward movement of the push rod 30 drives the first piston plate 29 to move upward, and the hydraulic oil in the second hydraulic oil groove 28 is sucked back into the first hydraulic oil groove 27 through the oil delivery groove 31, and the second spring 37 releases force. The force of the third spring 41 releases the force, so that the force plate 40 moves downward in the cavity 39, and the force plate 40 drives the blocking plate 38 to move downward, so that the blocking plate 38 blocks the blowing port 33. In this process, the second piston plate 32 moves to the left and resets. Before the blowing port 33 is not completely blocked, the gas can enter the right side space of the second piston plate 32 from the blowing port 33. When the blowing port 33 is completely blocked, the second piston plate 32 continues to move to the left and reset. At this time, the one-way valve opens, and the gas enters the gas storage groove 44 through the air inlet, and then enters the right side space of the second piston plate 32 through the air vent 45 until the second piston plate 32 is completely reset.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A mobile dry-type transformer, comprising a transformer body (1), characterized in that: The outer surfaces of both sides of the transformer body (1) are provided with a plurality of groups of heat dissipation convex plates (2), a heat dissipation groove (3) is provided between two adjacent groups of the heat dissipation convex plates (2), a cleaning cylinder (4) is slidably provided in the heat dissipation groove (3), and the outer surface of the cleaning cylinder (4) is provided with a first brush (5) for removing dust from the surface of the heat dissipation convex plates (2); A reciprocating screw (8) is rotatably arranged inside the heat dissipation groove (3), a movable seat (10) is threadedly connected on the circumference of the reciprocating screw (8), the movable seat (10) is slidably arranged in the heat dissipation groove (3), a rotating shaft (11) is rotatably arranged on the movable seat (10), a toothed plate (13) is fixed on the inner wall of the heat dissipation groove (3), a gear (14) is fixed on the circumference of the rotating shaft (11), and one end of the cleaning cylinder (4) is fixedly connected to the rotating shaft (11).

2. The mobile dry-type transformer according to claim 1, characterized in that: The top and bottom of the heat dissipation convex plate (2) are both provided with a receiving groove (12) for accommodating the cleaning cylinder (4).

3. The mobile dry-type transformer according to claim 2, characterized in that: A servo motor (6) is fixed to the outer surface of the transformer body (1), a worm (7) is fixed to the output end of the servo motor (6), a worm wheel (9) is fixed to the top of the reciprocating screw (8), the worm wheel (9) is meshed with the worm (7), the worm (7) and the worm wheel (9) are both rotatably arranged inside the transformer body (1), and the gear (14) is meshed with the toothed plate (13).

4. The mobile dry-type transformer according to claim 3, characterized in that: A sliding groove (15) is provided inside the cleaning cylinder (4), a slider (16) is slidably arranged inside the sliding groove (15), one end of the slider (16) is rotatably connected to a core rod (17), a slideway (18) is provided on the inner wall of the heat dissipation groove (3), the core rod (17) passes through the rotating shaft (11) and the movable seat (10), and the end of the core rod (17) is slidably arranged in the slideway (18), a second brush (19) is slidably arranged inside the cleaning cylinder (4), and the second brush (19) slides inside the sliding groove (15) through the slider (16) and extends out from the inside of the cleaning cylinder (4).

5. The mobile dry-type transformer according to claim 4, characterized in that: A guide groove (20) connected to the slideway (18) is provided inside the transformer body (1); a sliding boss (21) is fixed to the end of the core rod (17); the sliding boss (21) is slidably arranged in the guide groove (20); and the guide groove (20) comprises an inclined portion (201) and a vertical portion (202) connected to each other.

6. The mobile dry-type transformer according to claim 5, characterized in that: The cleaning cylinder (4) is provided with a movable groove (22) inside, a bottom plate (23) is slidably arranged inside the movable groove (22), the end of the second brush (19) is fixedly arranged on the bottom plate (23), a connecting rod (24) is fixed on the surface of the bottom plate (23), a limiting ball (25) is fixed at the end of the connecting rod (24), and a limiting groove (26) for the limiting ball (25) to slide is provided inside the sliding block (16).

7. The mobile dry-type transformer according to claim 6, characterized in that: The transformer body (1) is provided with a first hydraulic oil groove (27) and a second hydraulic oil groove (28). A first piston plate (29) is slidably arranged inside the first hydraulic oil groove (27). A push rod (30) is fixed on the upper surface of the first piston plate (29). The end of the push rod (30) is elastically arranged at the bottom end of the guide groove (20). An oil delivery groove (31) is arranged in communication between the first hydraulic oil groove (27) and the second hydraulic oil groove (28). A second piston plate (32) is elastically arranged inside the second hydraulic oil groove (28). An air blowing port (33) is arranged in communication between one side of the second hydraulic oil groove (28) and the receiving groove (12) at the bottom.

8. The mobile dry-type transformer according to claim 7, characterized in that: A spring groove (34) is provided on one side of the guide groove (20), a transverse plate (35) is fixed to the end of the push rod (30), one end of the transverse plate (35) is slidably arranged in the spring groove (34), a first spring (36) is fixed between the top of the spring groove (34) and the transverse plate (35), and a second spring (37) is fixed between the surface of the second piston plate (32) and the inner wall of the second hydraulic oil groove (28).

9. The mobile dry-type transformer according to claim 8, characterized in that: A blocking plate (38) is slidably arranged on the air outlet (33); a cavity (39) for the blocking plate (38) to slide is opened inside the transformer body (1); a force-bearing plate (40) is fixed on the top of the blocking plate (38); the force-bearing plate (40) is slidably arranged in the cavity (39); a third spring (41) is fixed between the top of the cavity (39) and the force-bearing plate (40); a first trapezoidal block (42) is fixed on the outer surface of the blocking plate (38); and a second trapezoidal block (43) for contacting the first trapezoidal block (42) is fixed on the surface of the second piston plate (32).

10. The mobile dry-type transformer according to claim 9, characterized in that: An air storage groove (44) is provided below the second hydraulic oil groove (28), a vent (45) is provided between the air storage groove (44) and the second hydraulic oil groove (28), a third piston plate (46) is slidably provided inside the air storage groove (44), and a fourth spring (47) is fixed between one side of the third piston plate (46) and the inner wall of the air storage groove (44).

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