Transformer cooling fin machining and cleaning device

Abstract

The invention belongs to the technical field of cooling fin cleaning, and particularly relates to a transformer cooling fin machining and cleaning device which comprises a rack, a rotating plate and a water outlet pipe. A mounting groove for placing the radiating fins is formed in the rack; the rotating plate is rotationally assembled on the first mounting frame around the axis parallel to the cooling fins, an elastic piece is arranged between the rotating plate and the first mounting frame, and the elastic piece has elastic potential energy enabling the end of the rotating plate to be tightly pressed and attached to the side faces of the cooling fins. The first mounting frame is slidably assembled on the rack, sliding friction force used for removing dirt on the surfaces of the cooling fins is generated between the ends of the rotating plates and the side faces of the cooling fins, and the moving track of the ends, in abutting contact with the side faces of the cooling fins, of the rotating plates covers the side faces of the cooling fins. The water outlet pipe is provided with a water outlet. The technical problem that in the prior art, bristles cannot effectively make contact with the surfaces of the groove areas and the surfaces of the non-groove areas of the cooling fins at the same time, and consequently the cooling fins with the grooves cannot be effectively cleaned can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of heat sink cleaning, and in particular relates to a transformer heat sink processing and cleaning device. Background Art

[0002] Transformer heat sinks are metal sheets used to dissipate heat generated when the transformer is running. They are usually made of aluminum or copper and have good thermal conductivity. The heat sink has a large surface area, which can accelerate the dissipation of heat to the surrounding air and prevent the transformer from overheating. The spacing between the heat sinks is the same, which facilitates standardized production and achieves uniform heat dissipation. It is a common choice for transformer heat dissipation design. In the prior art, there are usually grooves on the surface of the heat sink. The grooves can significantly increase the surface area of ​​the heat sink and increase the heat dissipation efficiency. However, the air flow speed in the grooves is slow, the surface area is large, and dust and oil are more likely to accumulate. The surface of the heat sink needs to be cleaned to remove dust and oil on the surface of the heat sink to reduce safety hazards.

[0003] The Chinese patent application document with the publication number CN113102323A discloses a special cleaning device for transformers, including a cleaning box, a cleaning frame is slidably mounted on the top of the cleaning box, and a row of cleaning rollers are rotated on the side of the cleaning frame to cooperate with the circular water distribution pipe to clean the heat sink of the transformer, and the cleaning roller contacts the surface of the heat sink, and the bristles located outside the cleaning roller are moderately bent, which can maintain elasticity and effectively clean, and the bristles rotate with the cleaning roller to remove dust and grease on the surface of the heat sink. However, when the above patent is used to clean the heat sink with grooves, the bristles cannot contact the inner surface of the groove of the heat sink. If the cleaning roller is moved to the inside of the groove, so that the bristles of the cleaning roller contact the outer surface of the heat sink groove, the distance between the cleaning roller and the non-groove area of ​​the heat sink is short, resulting in excessive compression of the bristles contacting the non-groove area of ​​the heat sink, reducing the cleaning ability of the bristles, and there is a risk of friction damage to the non-groove area of ​​the heat sink. Therefore, the above patent cannot effectively clean the heat sink with grooves. Summary of the invention

[0004] The present invention provides a transformer heat sink processing and cleaning device to solve the technical problem in the prior art that the bristles cannot effectively contact the surface of the heat sink groove area and the surface of the non-groove area at the same time, resulting in the inability to effectively clean the heat sink with grooves.

[0005] To solve the above problems, the present invention adopts the following technical solutions: A transformer heat sink processing and cleaning device comprises a frame, on which a rotating plate and a water outlet pipe are provided; the frame is provided with a mounting groove for placing the heat sink; the rotating plate is rotated around an axis parallel to the heat sink and mounted on a mounting frame one, an elastic member is provided between the rotating plate and the mounting frame one, the elastic member has elastic potential energy for pressing the end of the rotating plate against the side of the heat sink; the mounting frame one is slidably mounted on the frame, a sliding friction force for cleaning dirt on the surface of the heat sink is generated between the end of the rotating plate and the side of the heat sink, and the moving track of the end of the rotating plate that is in pressure contact with the side of the heat sink covers the side of the heat sink; the water outlet pipe is provided with a water outlet, and the water outlet is used to spray washing water onto the contact surface between the rotating plate and the heat sink.

[0006] The rotating plate can move in a direction parallel to the heat sink so that the moving trajectory of the end of the rotating plate covers all areas of the side of the heat sink. The rotating plate does not need to fit the groove part and the non-groove part of the heat sink at the same time. The rotating plate cleans the groove part and the non-groove part of the heat sink separately. When there is a groove on the heat sink, the rotating plate adaptively rotates under the action of the elastic member 1 to ensure that the end of the rotating plate is always in contact with the side of the heat sink; dust, grease and other dirt on the surface of the heat sink are removed by the sliding friction between the end of the rotating plate and the surface of the heat sink, and the removed dirt is promptly washed away by running water, so the groove part and the non-groove part of the heat sink are effectively cleaned.

[0007] Furthermore, the rotating plate includes a supporting plate and a cleaning plate located at the end of the supporting plate. The end surface of the cleaning plate is used to fit with the side surface of the heat sink. The end surface of the cleaning plate is provided with a rounded corner, and the axis of the rounded corner is parallel to the axis around which the rotating plate rotates.

[0008] The rounded corners can better disperse the stress exerted by the cleaning plate on the heat sink, prevent the cleaning plate from cracking or breaking due to stress concentration during use, and extend the service life of the cleaning plate.

[0009] Furthermore, the cleaning plate is made of elastic material.

[0010] The elastic material can fit into tiny protrusions and depressions, and the fitting area between the cleaning plate and the side of the heat sink is large, thereby improving the cleaning effect.

[0011] Furthermore, the mounting frame 1 is slidably mounted on the frame along a direction parallel to the heat sink and perpendicular to the axis around which the rotating plate rotates, and the mounting frame 1 is slidably mounted on the frame along a direction extending along the axis around which the rotating plate rotates.

[0012] The rotating plate reciprocates in a direction parallel to the axis around which the rotating plate rotates. Through repeated wiping, the surface of the heat sink is cleaned more carefully, thereby improving the cleaning effect. The rotating plate can also move in a direction perpendicular to the axis around which the rotating plate rotates, so that the cleaning plate wipes the heat sink in multiple directions, helping to overcome the adhesion between the dirt and the surface of the heat sink, making it easier for the dirt to fall off the surface of the heat sink, thereby improving the cleaning effect.

[0013] Furthermore, a second rotating shaft is fixed at both ends of the rotating plate. The rotating plate is assembled on a mounting frame and rotates around the second rotating shaft axis. An angle sensor is assembled on the second rotating shaft. The angle sensor is used to detect the angle of rotation of the rotating plate. When the angle sensor detects that the second rotating shaft rotates in a predetermined direction by a predetermined angle, the frequency of the reciprocating motion of the rotating plate along the extension direction of the second rotating shaft axis increases.

[0014] When the cleaning plate enters the groove, the angle sensor can detect that the rotating plate has rotated in a predetermined direction by a predetermined angle. At this time, the efficiency of the reciprocating motion of the cleaning plate along the second extension direction of the rotating shaft can be improved, so that the cleaning plate can contact and rub the surface in the groove more frequently, thereby more effectively removing stubborn oil stains, dust and other impurities.

[0015] Furthermore, the water outlet pipe is mounted on the mounting frame 1 and rotates around an axis parallel to the rotating shaft 2. When the rotating plate rotates, the water outlet pipe rotates synchronously to change the direction of the water outlet. Two water outlet pipes are mounted on each mounting frame 1, and the two water outlet pipes are respectively used to spray washing water onto both sides of the contact surface between the cleaning plate and the heat sink.

[0016] Due to the grooves on the surface of the heat sink, the rotating plate will rotate along with the shape of the heat sink during the process of wiping the heat sink. The rotatable water outlet pipe can rotate synchronously with the rotating plate to ensure that the water fully moistens the contact surface of the cleaning plate and the heat sink, softens the dirt, reduces the risk of damage to the heat sink, and washes away dust and dirt in time to avoid secondary pollution.

[0017] Furthermore, a rotating roller is rotatably mounted on the mounting frame, the axis around which the rotating roller rotates is parallel to the axis around which the rotating plate rotates, and bristles are arranged on the outer circumference of the rotating roller, and the bristles are used to contact the side of the heat sink.

[0018] The rotating roller and rotating plate cooperate to provide multiple cleaning and improve the cleaning efficiency of dirt.

[0019] Furthermore, there are multiple mounting frames one, and the multiple mounting frames one are arranged in a direction perpendicular to the heat sink, and the mounting frames one are slidably assembled on the rack in a direction perpendicular to the heat sink.

[0020] Multiple rotating plates can clean multiple heat sinks synchronously, thereby improving cleaning efficiency; the rotating plates can move in a direction perpendicular to the heat sink, and the number of rotating plates can be less than the number of heat sinks, thereby reducing costs.

[0021] Furthermore, mounting frame one is mounted on mounting frame two, and mounting frame two is slidably mounted on the frame in a direction perpendicular to the heat sink. Mounting frame two is provided with a diamond-shaped linkage mechanism whose telescopic direction is perpendicular to the heat sink. The diamond-shaped linkage mechanism is formed by multiple linkages hinged by circular shafts. The circular shaft that moves in a direction perpendicular to the heat sink during telescopic process is connected to mounting frame one. One of the mounting frames one is fixedly mounted on mounting frame two, and the remaining mounting frames one are slidably mounted on mounting frame two in a direction perpendicular to the heat sink. The diamond-shaped linkage mechanism is used to drive adjacent mounting frames one to approach or move away synchronously and equidistantly.

[0022] Furthermore, two adjacent mounting frames are fixedly connected to extension rods, one of the mounting frames equipped with the extension rod is fixedly connected to mounting frame 2, and a distance sensor is installed on the extension rod. The two extension rods are respectively located on both sides of one of the heat sinks. The distance sensor is used to detect the vertical distance between the extension rod and the heat sink. When the detection value of the distance sensor is a predetermined value, after the rotating plate and the rotating roller enter the gap, the end of the rotating plate is pressed against the side of the heat sink, and the bristles are in contact with the side of the heat sink.

[0023] Through the cooperation of the diamond-shaped connecting rod structure and the distance sensor, the positions of all mounting brackets can be determined only once, thus simplifying the operation steps.

[0024] The beneficial effects of the present invention are: ① When the rotating plate moves to contact the non-groove area of ​​the heat sink, the rotating plate rotates a preset angle, and at the same time, the rotating plate reciprocates along the extension direction of the second axis of the rotating shaft to clean the non-groove area of ​​the heat sink; when the rotating plate moves to the groove area of ​​the heat sink, the rotating plate adaptively rotates so that the cleaning plate fits the inner surface of the groove, and the movement frequency of the rotating plate along the extension direction of the second axis of the rotating shaft increases to clean the groove part of the heat sink; the present invention cleans the groove part and the non-groove part of the heat sink separately, avoids the cleaning plate from contacting the groove part and the non-groove part of the heat sink at the same time, ensures the cleaning effect, and protects the cleaning plate and the heat sink.

[0025] ② Referring to the detection value of the distance sensor, first move the second mounting frame so that the distance between the extension rod fixedly mounted on the second mounting frame and the heat sink is a predetermined distance, and then extend the diamond connecting rod mechanism so that the distance between the other extension rod and the heat sink is a predetermined distance. At this time, the rotating plate and the rotating roller enter the gap, the bristles are in effective contact with the side of the heat sink, the rotating plate is pushed by the heat sink, and the cleaning plate is pressed tightly against the side of the heat sink under the action of the elastic member. The position of all rotating plates can be controlled by adjusting the distance between the two extension rods, and the adjustment is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention; Figure 2It is a schematic diagram of the structure of the cleaning module and the positioning module; Figure 3 is a structural schematic diagram of a rotating plate; Figure 4 is a structural schematic diagram of a card slot; Figure 5 It is a schematic diagram of the installation structure of the water outlet pipe, the rotating plate and the rotating roller; Figure 6 is a schematic diagram of the installation structure of the elastic member; Figure 7 It is a structural schematic diagram of a diamond connection mechanism; Figure 8 Schematic diagram of the installation structure of linear actuator 5.

[0027] Description of reference numerals: 1. Frame; 2. Cleaning module; 21. Mounting frame 1; 22. Rotating roller; 23. Rotating plate; 231. Support plate; 232. Cleaning plate; 24. Water outlet pipe; 25. Motor 1; 26. Rotating shaft 2; 27. Elastic member; 28. Push rod; 29. ​​Linear actuator 4; 291. Motor 2; 292. Screw 1; 210. Slot; 211. Motor 3; 3. Positioning module; 31. Mounting frame 2; 32. Diamond linkage mechanism; 33. Linear actuator 1; 34. Extension rod; 4. Drive module; 41. Motor four; 42. Linear actuator three; 43. Linear actuator five; 431. Motor five; 432. Screw three; 44. Mounting frame three; 45. Mounting frame four. 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. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] A transformer heat sink processing and cleaning device comprises a frame 1, on which a cleaning module 2, a positioning module 3 and a driving module 4 are mounted, wherein the cleaning module 2 is used to clean the surface of the heat sink in contact with the cleaning module 2, the positioning module 3 is used to locate the position of the cleaning module 2 so that the cleaning module 2 is in contact with the surface of the heat sink, and the driving module 4 is used to drive the positioned cleaning module 2 to move so that the moving track of the cleaning module 2 covers the surface of the heat sink to be cleaned.

[0030] The frame 1 is provided with a mounting groove for mounting the heat sink of the transformer. There are a plurality of heat sinks, which are arranged horizontally, and a plurality of gaps which penetrate vertically are present between two adjacent heat sinks.

[0031] like Figure 2 and Figure 5 As shown, the cleaning module 2 includes a mounting frame 21 and a rotating roller 22, a rotating plate 23, and a water outlet pipe 24 mounted on the mounting frame 21. The rotating roller 22 is a horizontally extending cylindrical structure. The axis of the rotating roller 22 is horizontal and perpendicular to the arrangement direction of the heat sink. There are two rotating rollers 22, which are arranged up and down. Bristles extending along the radial direction of the rotating roller 22 are evenly fixed on the outer circumference of the rotating roller 22. A rotating shaft 1 coaxial with the rotating roller 22 is fixed at both ends of the rotating roller 22. The rotating shaft 1 rotates around its own axis and is mounted on the mounting frame 21; the rotating roller 22 is driven by a motor 2 5 drives rotation, the motor 25 is a servo motor or a stepper motor, the motor 25 is fixedly assembled on the mounting frame 21, the output shaft of the motor 25 is parallel to the rotating shaft 1, the output shaft of the motor 25 and the rotating shaft 1 are respectively fixedly assembled with upper and lower corresponding gears, the gears mesh with the timing belt, the motor 25 is started, and the two rotating rollers 22 are driven to rotate synchronously around their own axes through the meshing transmission of the timing belt and the gears, the rotating roller 22 enters the gap, the bristles contact the side of the heat sink, and as the rotating roller 22 rotates, the bristles brush the heat sink to clean the dirt on the heat sink.

[0032] The rotating plate 23 is a rectangular plate structure. Figure 3 As shown, the rotating plate 23 includes a supporting plate 231 and cleaning plates 232 fixed on both sides of the supporting plate 231. The cleaning plates 232 are made of silicone. The two ends of the supporting plate 231 are fixed with a second rotating shaft 26 parallel to the rotating roller 22; the rotating plate 23 is symmetrical about the axis of the second rotating shaft 26, and the cleaning plates 232 are located on both sides of the axis of the second rotating shaft 26. The ends of the cleaning plates 232 are provided with fillets, and the axis of the fillets is parallel to the second rotating shaft 26; the second rotating shaft 26 is rotatably assembled on the mounting frame 1 21 around its own axis, and the axis of the second rotating shaft 26 and the axis of the rotating roller 22 are on the same vertical plane; as shown Figure 6 As shown, an elastic member 27 is provided between the second rotating shaft 26 and the rotating plate 23. The elastic member 27 is a bidirectional torsion spring. The elastic member 27 is mounted on the second rotating shaft 26. The two ends of the elastic member 27 are respectively fixedly connected to the second rotating shaft 26 and the mounting frame 1 21. The elastic member 27 has elastic potential energy to arrange the rotating plate 23 horizontally.

[0033] The mounting frame 21 moves downward, driving the rotating roller 22 and the rotating plate 23 to move downward synchronously and enter the gap. During the downward movement, the bristles come into contact with the side of the heat sink, and the rotating plate 23 rotates under the push of the end face of the heat sink. The elastic member 27 generates elastic potential energy that presses the end of the cleaning plate 232 tightly against the heat sink. The softness and elasticity of the silicone enable it to fit well to the surfaces of objects of various shapes and sizes. The mounting frame 21 continues to move downward, and a sliding friction force is generated between the end of the cleaning plate 232 and the heat sink to clean the dust and dirt on the surface of the heat sink. When there are grooves on the surface of the heat sink, the rotating plate 23 adjusts the rotation angle in real time according to the concave and convex conditions of the heat sink surface, so that the cleaning plate 232 is always pressed tightly against the surface of the heat sink to ensure the cleaning effect.

[0034] The second shaft 26 is equipped with an angle sensor; a guide rod 1 is fixed on the mounting frame 1 21, and a guide hole 1 is provided in the guide rod 1. The second shaft 26 is slidably mounted in the guide hole 1 along the extending direction of the axis of the second shaft 26. The mounting frame 1 21 is provided with a driving mechanism for driving the rotating plate 23 to slide along the extending direction of the axis of the second shaft 26. The driving mechanism includes a push rod 28 and a linear actuator 4 29, such as Figure 4 As shown, a slot 210 is provided on the rotating plate 23, and the push rod 28 is installed in the slot 210. A guide rod 2 parallel to the rotating shaft 26 is fixed on the mounting frame 1 21, and a guide hole 2 adapted to the guide rod 2 is provided on the push rod 28; the linear actuator 4 29 includes a motor 291 and a screw 1 292, the motor 291 is fixedly assembled on the mounting frame 1 21, the output shaft of the motor 291 is coaxially fixedly connected to the screw 1 292, the screw 1 292 is parallel to the rotating shaft 26, and the push rod 28 is threadedly connected to the screw 1 292.

[0035] The motor 1 25 is started, and driven by the screw 1 292, the rotating plate 23 reciprocates along the extending direction of the axis of the rotating shaft 2 26, wiping the heat sink in multiple directions, exerting force on the dirt from multiple angles, helping to overcome the adhesion between the dirt and the surface of the heat sink, making it easier for the dirt to separate from the surface of the heat sink, thereby improving the cleaning effect. When the angle sensor detects that the rotation angle of the rotating shaft 26 decreases, it proves that the rotating plate 23 has entered the recess of the heat sink, and the linear actuator 4 29 increases the frequency of driving the rotating plate 23 to reciprocate along the axis of the rotating shaft 2 26, thereby improving the cleaning effect of the dirt in the recess.

[0036] There are two water outlet pipes 24, one water outlet pipe 24 is located above the second rotating shaft 26, and the other water outlet pipe 24 is located below the second rotating shaft 26. The axis of the water outlet pipe 24, the axis of the second rotating shaft 26 and the axis of the rotating roller 22 are in the same vertical plane. The water outlet pipe 24 has multiple water outlets, and the water outlets are arranged along the axis direction of the water outlet pipe 24. The water outlet pipe 24 is assembled on the mounting frame 1 21 through a rotating bearing to rotate around its own axis. One end of the water outlet pipe 24 is closed, and the other end is connected to the water inlet pipe through a rotating joint. The water inlet pipe is equipped with a valve for controlling the internal water pressure and water flow of the water outlet pipe 24. The water outlet pipe 24 is driven to rotate by a motor 3 211. The motor 3 211 is a servo motor or a stepping motor. The motor 3 211 is fixedly assembled on the mounting frame 1 21, and the output shaft of the motor 3 211 is coaxially fixedly connected to the closed end of the water outlet pipe 24.

[0037] When the angle sensor detects that the second rotating shaft 26 rotates, the valve opens, and the water inlet pipe sends washing water to the water outlet pipe 24. There is water pressure inside the water outlet pipe 24, so that the washing water is sprayed out from the water outlet. The motor 3 211 is adjusted with reference to the angle value detected by the angle sensor, so that the water sprayed out of the water outlet is sprayed toward the contact point between the cleaning plate 232 and the heat sink. The water sprayed out of the upper water outlet can naturally flow to the contact surface between the cleaning plate 232 and the heat sink under the action of gravity, forming a lubricating film between the cleaning plate 232 and the heat sink surface, reducing the friction between the cleaning plate 232 and the heat sink, making the cleaning plate 232 easy to move, and reducing the risk of wear on the heat sink surface; the water sprayed out of the lower water outlet can wet the next contact surface between the cleaning plate 232 and the heat sink in advance, and quickly wash away the dirt scraped off by the cleaning plate 232, so as to prevent the dirt from re-attaching to the heat sink surface during the cleaning process.

[0038] There are multiple mounting frames 21, and the multiple mounting frames 21 are parallel to each other and arranged horizontally. The mounting frame 21 is provided with a guide hole 3 extending horizontally and horizontally. The mounting frame 2 is fixed with a guide rod 3 extending horizontally and horizontally. The guide rod 3 is inserted into the guide hole 3, and the outer peripheral surface of the guide rod 3 located in the guide hole 3 fits with the inner peripheral surface of the guide hole 3; the positioning module 3 includes a distance sensor, a diamond-shaped connecting rod mechanism 32 and a linear actuator 1 33. The distance sensor is assembled on an extension rod 34. There are two extension rods 34. The two extension rods 34 are respectively fixed on the bottom surfaces of two adjacent mounting frames 21, and one of the extension rods 34 is fixed below the mounting frame 21 at the end. The distance sensor is used to detect the vertical distance between the extension rod 34 and the heat sink along the horizontal and horizontal direction; Figure 7As shown, the diamond linkage mechanism 32 is formed by a plurality of linkages hinged by a circular axis 1 and a circular axis 2, and the circular axis 1 and the circular axis 2 are respectively located at the connection points of the linkages, so as to ensure that the diamond linkage mechanism 32 can be smoothly expanded or contracted; during the horizontal and lateral extension and contraction of the diamond linkage mechanism 32, the circular axis 1 always moves horizontally and lateraly, and the circular axis 2 is symmetrically distributed on both sides of the plane where the axes of all the circular axis 1 are located, and each mounting frame 1 21 is connected with a circular axis 1, so that the mounting frame 1 21 moves horizontally and lateraly synchronously with the circular axis 1, and when the diamond linkage mechanism 32 is extended, two adjacent mounting frames 1 21 are synchronously and equidistantly away from each other, and when the diamond linkage mechanism 32 is shortened, two adjacent mounting frames 1 21 are synchronously and equidistantly close to each other; linear execution The linear actuator 33 is an electric push rod or a hydraulic rod. The driving direction of the linear actuator 33 is horizontal. The fixed end of the linear actuator 33 is fixedly assembled on the mounting frame 2 31. The mounting frame 21 equipped with an extension rod 34 at the end is fixedly assembled on the mounting frame 2 31. The other mounting frames 21 are assembled on the mounting frame 2 31 by horizontal and horizontal sliding under the limitation of the guide rod 3 and the guide hole 3. The output end of the linear actuator 33 is connected to the round shaft 1 on the mounting frame 21 equipped with another extension rod 34. The linear actuator 33 extends or shortens, driving the diamond connecting rod mechanism 32 to extend or shorten horizontally, and the mounting frame 21 is equidistantly and synchronously approached or moved away.

[0039] The operation mode of the positioning module 3 is as follows: two extension rods 34 are respectively located on both sides of the heat sink at one end, the extension rod 34 fixed relatively to the mounting frame 2 31 is located outside the gap, and the other extension rod 34 is located inside the gap; the linear actuator 1 33 is extended with reference to the detection value of the distance sensor, so that the vertical distance between the extension rod 34 located outside the gap and the heat sink along the horizontal transverse direction is a predetermined distance; the vertical distance between the extension rod 34 located inside the gap and the heat sink along the horizontal transverse direction is a predetermined distance, at this time, the mounting frame 1 21 is moved down, the bristles contact the side of the heat sink, the rotating plate 23 rotates under the push of the top surface of the heat sink, and the cleaning plate 232 is pressed into contact with the side of the heat sink under the action of the elastic potential energy of the elastic member 27.

[0040] The driving module 4 includes a linear actuator 2, a linear actuator 3 42 and a linear actuator 5 43. The driving direction of the linear actuator 2 is horizontal and parallel to the heat sink. The linear actuator 2 includes a motor 41 and a screw 2. The motor 41 is fixedly mounted on a mounting frame 3 44. The mounting frame 3 44 is provided with a horizontal slideway parallel to the heat sink. The top of the mounting frame 2 31 is located in the slideway. The two side surfaces of the top of the mounting frame 2 31 located in the slideway are in contact with the inner wall of the slideway. The screw 2 is coaxially fixedly mounted on the output shaft of the motor 41. The mounting frame 2 31 located in the slideway is provided with a bite screw. The threaded hole of the rod 2 is connected to the motor 41, and the motor 41 is started to drive the mounting frame 2 31 and all the mounting frames 1 21 to move in a horizontal direction and parallel to the heat sink; the linear actuator 3 42 is an electric push rod or a hydraulic rod, and the driving direction of the linear actuator 3 42 is the up and down direction. The output end of the linear actuator 3 42 is fixedly connected to the mounting frame 3 44, and the fixed end of the linear actuator 3 42 is fixedly assembled on the mounting frame 4 45. The linear actuator 3 42 is extended or shortened to drive the mounting frame 2 31 and the mounting frame 1 21 to rise or fall synchronously; the driving direction of the linear actuator 5 43 is horizontal and transverse, such as Figure 8 As shown, the linear actuator five 43 includes a motor five 431 and a screw three 432. The motor five 431 is fixedly assembled on the frame 1, and the screw three 432 is coaxially fixedly assembled on the output shaft of the motor five 431. The mounting frame four 45 is provided with a threaded hole for engaging the screw three 432. When the motor five 431 is started, it drives the mounting frame one 21 and the mounting frame two 31 to move horizontally.

[0041] The PLC is assembled on the frame 1, the angle sensor and the distance sensor are electrically connected to the input end of the PLC, and the motor 1 25, the motor 2 291, the motor 3 211, the motor 4 41, the motor 5 431 and the linear actuator 1 33, the linear actuator 3 42 are electrically connected to the output end of the PLC.

[0042] The use of the present invention is: ① Place the heat sink of the transformer to be cleaned on the frame 1, adjust the motor 41, the linear actuator 32 and the motor 5 431, so that the two extension rods 34 are respectively located on both sides of the heat sink at one end, the extension rod 34 fixed relatively to the mounting frame 2 31 is located outside the gap, and the other extension rod 34 is located inside the gap; the motor 41 drives the mounting frame 2 31 to move horizontally, and with reference to the detection value of the distance sensor, the vertical distance between the extension rod 34 located outside the gap and the heat sink along the horizontal transverse direction is a predetermined distance; extend the linear actuator 1 33, the distance between two adjacent mounting frames 1 21 increases synchronously and equidistantly, and with reference to the detection value of the distance sensor, the vertical distance between the extension rod 34 located inside the gap and the heat sink along the horizontal transverse direction is a predetermined distance; ② Adjust the linear actuator 3 42, move the mounting frame 2 31 downward, the bristles contact one of the side surfaces of the heat sink, the rotating plate 23 rotates under the push of the top surface of the heat sink, and the cleaning plate 232 is pressed and fitted with one of the side surfaces of the heat sink under the action of the elastic member 27; when the angle sensor detects that the rotation angle of the rotating shaft 26 increases, the valve opens, the water inlet pipe sends water to the water outlet pipe 24, and there is water pressure inside the water outlet pipe 24, so that water is sprayed out from the water outlet, and the motor 3 211 is adjusted with reference to the angle value detected by the angle sensor, so that the water sprayed from the water outlet is sprayed to the contact point between the cleaning plate 232 and the heat sink; when the rotating shaft 26 rotates , the motor 1 25 is started, driving the two rotating rollers 22 to rotate synchronously, and the bristles brush the side of the heat sink. At the same time, the motor 291 is started, driving the rotating plate 23 to reciprocate along the extension direction of the axis of the rotating shaft 26. There is a horizontal and vertical displacement between the cleaning plate 232 and the side of the heat sink, and the heat sink is wiped in multiple directions to improve the cleaning effect; when the angle sensor detects that the rotation angle of the rotating shaft 26 is reduced, it proves that the cleaning plate 232 has entered the recess of the heat sink, and the speed of the motor 2 291 is increased, which increases the frequency of the reciprocating movement of the rotating plate 23 along the axis of the rotating shaft 26, thereby improving the cleaning effect of the dirt in the recess; ③ The linear actuator three 42 drives the mounting frame one 21 to move downward until the rotating plate 23 moves to the bottom of the heat sink. The rotating plate 23 returns to the horizontal state under the action of the elastic member 27, the valve is closed, and the motor one 25 stops rotating; the motor four 41 drives all the mounting frames one 21 to move a predetermined distance in a horizontal direction parallel to the heat sink, and the linear actuator three 42 drives the mounting frame one 21 to move upward, so that the rotating plate 23 rotates under the push of the bottom surface of the heat sink, and the cleaning plate 232 contacts the side surface of the heat sink and moves upward, the motor one 25 is started, the valve is opened, and the other areas to be cleaned on one side of the heat sink are cleaned until one side of the heat sink is cleaned; ④ Adjust the motor five 431 to drive the mounting frame one 21 to move a predetermined distance in a direction horizontally and perpendicular to the heat sink, and the linear actuator three 42 drives the mounting frame one 21 to enter other gaps to clean one side of other heat sinks; ⑤ Adjust the motor five 431 to drive the mounting frame one 21 to move a predetermined distance in a direction horizontally and perpendicular to the heat sink, and clean the other side of the heat sink with reference to steps ②, ③ and ④.

Claims

1. A transformer heat sink processing and cleaning device, comprising a frame, characterized in that: The frame is provided with a rotating plate and a water outlet pipe; The rack is provided with a mounting slot for placing the heat sink; The rotating plate is rotated around an axis parallel to the heat sink and assembled on the mounting frame 1. An elastic member is provided between the rotating plate and the mounting frame 1. The elastic member has elastic potential energy that causes the end of the rotating plate to press against the side of the heat sink. The mounting frame 1 is slidably assembled on the frame. A sliding friction force for removing dirt from the surface of the heat sink is generated between the end of the rotating plate and the side of the heat sink. The moving track of the end of the rotating plate that is in press contact with the side of the heat sink covers the side of the heat sink. The water outlet pipe is provided with a water outlet, and the water outlet is used for spraying washing water onto the contact surface between the rotating plate and the heat sink.

2. A transformer heat sink processing and cleaning device according to claim 1, characterized in that: The rotating plate includes a supporting plate and a cleaning plate at the end of the supporting plate. The end surface of the cleaning plate is used to fit with the side surface of the heat sink. The end surface of the cleaning plate is provided with a rounded corner, and the axis of the rounded corner is parallel to the axis around which the rotating plate rotates.

3. A transformer heat sink processing and cleaning device according to claim 2, characterized in that: The cleaning plate is made of elastic material.

4. A transformer heat sink processing and cleaning device according to claim 3, characterized in that: The mounting frame 1 is slidably mounted on the frame along a direction parallel to the heat sink and perpendicular to the axis around which the rotating plate rotates. The mounting frame 1 is slidably mounted on the frame along a direction extending along the axis around which the rotating plate rotates.

5. A transformer heat sink processing and cleaning device according to claim 4, characterized in that: Rotating shaft 2 is fixed at both ends of the rotating plate. The rotating plate is assembled on the mounting frame 1 and rotates around the axis of rotating shaft 2. An angle sensor is assembled on rotating shaft 2. The angle sensor is used to detect the rotation angle of the rotating plate. When the angle sensor detects that rotating shaft 2 rotates in a predetermined direction by a predetermined angle, the frequency of the reciprocating motion of the rotating plate along the extension direction of the axis of rotating shaft 2 increases.

6. A transformer heat sink processing and cleaning device according to claim 5, characterized in that: The water outlet pipe is mounted on the mounting frame 1 and rotates around an axis parallel to the rotating shaft 2. When the rotating plate rotates, the water outlet pipe rotates synchronously to change the direction of the water outlet. Two water outlet pipes are mounted on each mounting frame 1, and the two water outlet pipes are respectively used to spray washing water to both sides of the contact surface between the cleaning plate and the heat sink.

7. A transformer heat sink processing and cleaning device according to any one of claims 1 to 6, characterized in that: A rotating roller is rotatably mounted on the mounting frame. The axis around which the rotating roller rotates is parallel to the axis around which the rotating plate rotates. Bristles are arranged on the outer circumference of the rotating roller. The bristles are used to contact the side of the heat sink.

8. The transformer heat sink processing and cleaning device according to claim 7, characterized in that: There are multiple mounting frames one, and the multiple mounting frames one are arranged along a direction perpendicular to the heat sink, and the mounting frames one are slidably assembled on the rack along a direction perpendicular to the heat sink.

9. The transformer heat sink processing and cleaning device according to claim 8, characterized in that: Mounting frame one is mounted on mounting frame two, and mounting frame two is slidably mounted on the rack in a direction perpendicular to the heat sink. Mounting frame two is provided with a rhombus-shaped connecting rod mechanism whose telescopic direction is perpendicular to the heat sink. The rhombus-shaped connecting rod mechanism is formed by a plurality of connecting rods hinged by a circular shaft. The circular shaft that moves in a direction perpendicular to the heat sink during telescopic process is connected to mounting frame one. One of mounting frames one is fixedly mounted on mounting frame two, and the remaining mounting frames one are slidably mounted on mounting frame two in a direction perpendicular to the heat sink. The rhombus-shaped connecting rod mechanism is used to drive adjacent mounting frames one to approach or move away synchronously and equidistantly.

10. The transformer heat sink processing and cleaning device according to claim 9, characterized in that: Two adjacent mounting frames are fixedly connected to extension rods, one of the mounting frames equipped with the extension rod is fixedly connected to mounting frame 2, a distance sensor is installed on the extension rod, the two extension rods are respectively located on both sides of one of the heat sinks, the distance sensor is used to detect the vertical distance between the extension rod and the heat sink, when the detection value of the distance sensor is a predetermined value, after the rotating plate and the rotating roller enter the gap, the end of the rotating plate is pressed against the side of the heat sink, and the bristles are in contact with the side of the heat sink.

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