Dustproof device for high-voltage motor

Abstract

The utility model discloses a dustproof device for a high-voltage motor, which relates to the technical field of high-voltage motors and comprises a high-voltage motor end cover fixed with a high-voltage motor casing, a filter screen plate for air intake is fixed on one side of the high-voltage motor end cover, and a fan is rotatably mounted on the inner side, close to the filter screen plate, of the high-voltage motor end cover. According to the cleaning device, the linkage piece drives the cleaning spray head and the dirt collecting disc to circumferentially rotate along the axis of the dustproof cloth, the first connector conveys cleaning liquid into the cleaning spray head at the same time, and the cleaning liquid is sprayed out of the cleaning spray head to clean the dustproof cloth; cleaning liquid after cleaning penetrates through the dustproof cloth and is collected by the dirt collecting disc in a centralized mode, the dirt collecting disc collects the dirt and then is discharged through the second connector, and therefore continuous cleaning operation under the non-stop state is completed, the requirement for long-time continuous dust prevention of the high-voltage motor is met, meanwhile, dirt after flushing can be collected and discharged in real time, and the cleaning efficiency is improved. And the problem of secondary pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage motors, and in particular to a dust-proof device for high-voltage motors. Background Art

[0002] A high-voltage motor refers to an electric motor with a rated voltage of 1000V or above, and commonly used voltages are 6000V and 10000V. After a high-voltage motor has been working for a long time, a large amount of dust will accumulate on its surface. The dust can easily shorten the life of the motor and reduce its working efficiency. Traditional motor covers cannot effectively isolate dust, and also make the heat dissipation of the motor worse.

[0003] To solve the above problems, a patent document with the announcement number "CN213027639U" discloses a dust prevention device for a high-voltage motor, including a movable roller motor and a fixed roller motor, and an air intake device is provided at the motor end cover of the movable roller motor and the fixed roller motor. The air intake device includes a main air duct, a first air branch pipe and a second air branch pipe, one end of the first air branch pipe is fixedly connected to one end of the main air duct, and the other end of the first air branch pipe is fixedly connected to the motor end cover of the movable roller motor, the first air branch pipe connects the main air duct and the motor end cover of the movable roller motor, and the other end of the main air duct is provided with a protective net.

[0004] In the above-mentioned prior art, an external air intake structure is set up for filtering to achieve a dust-proof effect. However, in order to ensure the dust filtering effect, the motor must be shut down for maintenance after a period of use, that is, the air intake must be stopped, and then the dust net must be flushed through a cleaning nozzle. This cannot meet the long-term continuous dust-proof requirements of the motor. In addition, the dirt after flushing is difficult to collect and discharge, which will cause secondary pollution problems. Therefore, a high-voltage motor dust-proof device is needed. Utility Model Content

[0005] The purpose of this application is to provide a high-voltage motor dust prevention device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a high-voltage motor dust prevention device, comprising a high-voltage motor end cover fixed to a high-voltage motor housing, an air intake filter plate fixed to one side of the high-voltage motor end cover, and a fan rotatably mounted on the inner side of the high-voltage motor end cover near the filter plate;

[0007] A dustproof cloth is detachably fixed to the side of the fan away from the filter plate through a mounting ring. A cleaning nozzle and a dirt collecting tray are installed on both sides of the dustproof cloth. The cleaning nozzle is located on the side of the dustproof cloth away from the fan, and the dirt collecting tray is located on the side of the dustproof cloth close to the fan.

[0008] The fan drives the cleaning nozzle and the dirt collecting tray to rotate along the axis of the dustproof cloth through the linkage. The diameter of the cleaning nozzle and the dirt collecting tray is equal to the radius of the middle part of the dustproof cloth exposed from the mounting ring, and the positions of the cleaning nozzle and the dirt collecting tray coincide with each other in the horizontal direction.

[0009] The end of the cleaning nozzle is rotatably connected to a first joint, which transports cleaning liquid into the cleaning nozzle. The end of the dirt collecting tray is rotatably connected to a second joint, which discharges the dirt collected in the dirt collecting tray through a pipeline.

[0010] As a further supplement to this solution, a first annular connecting pipe is formed on one side of the cleaning nozzle and is coaxially arranged with the dustproof cloth. The first annular connecting pipe is connected to the cavity inside the cleaning nozzle, and a plurality of water spray holes are opened on the side of the cleaning nozzle that is in contact with the dustproof cloth;

[0011] The first joint is rotatably connected to the end of the first annular connecting pipe, and the output end of the first joint is communicated with the first annular connecting pipe. The input end of the first joint is communicated with the output end of the pump for externally conveying cleaning liquid through the conveying pipe.

[0012] As a further supplement to this solution, a second ring connecting pipe is formed on one side of the dirt collecting tray and is coaxially arranged with the dustproof cloth. A dirt collecting cavity is opened on the side of the dirt collecting tray that is in contact with the dustproof cloth, and the second ring connecting pipe is connected to the dirt collecting cavity.

[0013] The second joint is rotatably connected to the end of the second ring connecting pipe, and the input end of the second joint is communicated with the second ring connecting pipe, and the output end of the second joint is communicated with the input end of the external sewage pump through the sewage pipe.

[0014] As a further supplement to this solution, the cross section of the sewage collecting chamber covers multiple water spray hole cross sections;

[0015] A side of the dirt collecting cavity close to the dustproof cloth is formed with an inwardly contracted ring edge, and one side of the contracted ring edge slides and fits with the surface of the dustproof cloth;

[0016] A water-absorbing gasket is fixed on the inner side of the gathered ring edge. The water-absorbing gasket is an elastic body made of sponge material. One side of the water-absorbing gasket is tightly fitted with the surface of the dustproof cloth.

[0017] As a further supplement to this solution, an open sewage collecting trough is provided at the lower end of the dustproof cloth, a sewage discharge hole is provided at the bottom of the sewage collecting trough, and the sewage discharge hole is connected to the sewage discharge pipe through a pipeline.

[0018] As a further supplement to this solution, the linkage includes a reduction gearbox, the fan shaft of the fan is transmission-connected to the input end of the reduction gearbox, the gearbox output shaft of the reduction gearbox is fixedly passed through the middle of the first annular connecting tube and the second annular connecting tube, and the gearbox output shaft rotates through the dustproof cloth, the second joint and is rotationally connected to the first joint.

[0019] In summary, the technical effects and advantages of the utility model are:

[0020] 1. In the utility model, the cleaning nozzle and the dirt collecting tray are driven to rotate in a circle along the axis of the dustproof cloth by a linkage part, and the first joint simultaneously delivers cleaning liquid into the cleaning nozzle, and the cleaning liquid is sprayed from the cleaning nozzle to clean the dustproof cloth. The cleaning liquid passes through the dustproof cloth and is collected by the dirt collecting tray. After being collected by the dirt collecting tray, it is further discharged through the second joint, thereby completing the continuous cleaning operation without stopping the machine, so that the dustproof cloth can continue to maintain the best filtering effect during long-term use, meeting the long-term continuous dust protection needs of the high-voltage motor, and at the same time, it can also collect and discharge the flushed dirt in real time to avoid the problem of secondary pollution.

[0021] 2. In the present invention, by setting up the retracted ring edge and the water-absorbing gasket, a retracted and relatively closed cavity can be formed between the edge of the sewage collecting chamber and the dustproof cloth, thereby ensuring that the collected sewage can be gathered, reducing the probability of secondary pollution of the dustproof cloth by sewage, and ensuring that the sewage is discharged more smoothly.

[0022] 3. In the present invention, by setting up the sewage collecting trough, the sewage flowing along the surface of the dustproof cloth can be collected and discharged through the sewage discharge hole, thereby avoiding a small amount of sewage attached to the surface of the dustproof cloth from remaining in the end cover of the high-voltage motor and causing secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 Schematic diagram of the three-dimensional structure in this embodiment;

[0025] Figure 2 Schematic diagram of the cross-sectional structure in this embodiment;

[0026] Figure 3 Schematic diagram of the cross-sectional structure of the cleaning nozzle and the dirt collecting tray in this embodiment;

[0027] Figure 4 Schematic diagram of the connection structure between the fan and the reduction gearbox in this embodiment.

[0028] In the figure: 1. High-voltage motor end cover; 11. Filter screen; 12. Connecting plate; 2. Fan; 21. Fan shaft; 3. Dustproof cloth; 31. Mounting ring; 311. Sewage collecting trough; 312. Sewage discharge hole; 4. Cleaning nozzle; 41. First annular connecting pipe; 42. Water spray hole; 5. Sewage collecting tray; 51. Second annular connecting pipe; 52. Sewage collecting chamber; 53. Gathering ring edge; 54. Water-absorbing gasket; 6. First joint; 61. Delivery pipe; 7. Reduction gearbox; 71. Gearbox output shaft; 8. Second joint; 81. Sewage discharge pipe. DETAILED DESCRIPTION

[0029] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0030] Example: Reference Figures 1-4 A high-voltage motor dust prevention device shown includes a high-voltage motor end cover 1 fixed to the high-voltage motor casing, an air inlet filter plate 11 fixed to one side of the high-voltage motor end cover 1, and a fan 2 rotatably mounted on the inner side of the high-voltage motor end cover 1 near the filter plate 11;

[0031] A dustproof cloth 3 is detachably fixed to the side of the fan 2 away from the filter plate 11 through a mounting ring 31. A cleaning nozzle 4 and a dirt collecting tray 5 are respectively mounted on both sides of the dustproof cloth 3. The cleaning nozzle 4 is located on the side of the dustproof cloth 3 away from the fan 2, and the dirt collecting tray 5 is located on the side of the dustproof cloth 3 close to the fan 2.

[0032] The fan 2 drives the cleaning nozzle 4 and the dirt collecting tray 5 to rotate along the axis of the dustproof cloth 3 through the linkage. The diameter of the cleaning nozzle 4 and the dirt collecting tray 5 is equal to the radius of the middle part of the dustproof cloth 3 exposed from the mounting ring 31, and the positions of the cleaning nozzle 4 and the dirt collecting tray 5 coincide with each other in the horizontal direction.

[0033] The end of the cleaning nozzle 4 is rotatably connected to a first joint 6, which transports cleaning liquid into the cleaning nozzle 4. The end of the dirt collecting tray 5 is rotatably connected to a second joint 8, which discharges the dirt collected in the dirt collecting tray 5 through a pipeline.

[0034] Based on the above structure, while the fan 2 rotates, the cleaning nozzle 4 and the dirt collecting tray 5 are driven by the linkage to rotate along the axis of the dust-proof cloth 3, and the first joint 6 simultaneously transports cleaning liquid into the cleaning nozzle 4. The cleaning liquid is sprayed from the cleaning nozzle 4 to clean the dust-proof cloth 3. The cleaned cleaning liquid passes through the dust-proof cloth 3 and is collected by the dirt collecting tray 5. After being collected, the dirt collecting tray 5 is further discharged through the second joint 8, thereby completing the continuous cleaning operation without stopping the machine, so that the dust-proof cloth 3 can continue to maintain the best filtering effect during long-term use, meeting the long-term dust prevention needs of the high-voltage motor, and at the same time, it can also collect and discharge the flushed dirt in real time to avoid the problem of secondary pollution.

[0035] Furthermore, a first annular connecting pipe 41 is formed on one side of the cleaning nozzle 4 and is coaxially arranged with the dustproof cloth 3. The first annular connecting pipe 41 is connected to the cavity inside the cleaning nozzle 4. A plurality of water spray holes 42 are opened on the side of the cleaning nozzle 4 that is in contact with the dustproof cloth 3.

[0036] The first connector 6 is rotatably connected to the end of the first annular connecting pipe 41 , and the output end of the first connector 6 is communicated with the first annular connecting pipe 41 , and the input end of the first connector 6 is communicated with the output end of the pump for externally delivering cleaning liquid through the delivery pipe 61 .

[0037] After the first joint 6 transports the cleaning liquid into the first annular connecting pipe 41, the cleaning liquid enters the cavity in the cleaning nozzle 4 through the first annular connecting pipe 41 and is evenly distributed, and is sprayed out through multiple water spray holes 42, thereby enabling the cleaning nozzle 4 to clean the area of ​​the dustproof cloth 3 covered by the cleaning nozzle 4 while rotating, while ensuring that other areas of the dustproof cloth 3 still have a filtering effect, thereby achieving cleaning operations without stopping the machine.

[0038] A second ring connecting pipe 51 is formed on one side of the dirt collecting tray 5 and is coaxial with the dustproof cloth 3. A dirt collecting cavity 52 is formed on the side of the dirt collecting tray 5 that is in contact with the dustproof cloth 3. The second ring connecting pipe 51 is in communication with the dirt collecting cavity 52.

[0039] The second joint 8 is rotatably connected to the end of the second ring connecting pipe 51 , and the input end of the second joint 8 is communicated with the second ring connecting pipe 51 , and the output end of the second joint 8 is communicated with the input end of the external sewage pump through the sewage pipe 81 .

[0040] The sewage formed after the cleaning liquid flushes the dust-proof cloth 3 passes through the dust-proof cloth 3 and enters the sewage collecting chamber 52. After being gathered in the sewage collecting chamber 52, it is discharged to the second joint 8 by the second ring connecting pipe 51, and finally discharged through the sewage pipe 81. Since the position of the sewage collecting plate 5 and the cleaning nozzle 4 always correspond and rotate synchronously, the sewage collecting plate 5 can collect and discharge the sewage in real time, thereby achieving a sewage collecting and sewage discharging effect adapted to the cleaning nozzle 4.

[0041] Furthermore, the cross section of the sewage collecting chamber 52 covers the cross sections of the plurality of water spray holes 42;

[0042] The dirt collecting cavity 52 is formed with an inwardly contracted ring edge 53 on one side close to the dustproof cloth 3, and one side of the ring edge 53 is in sliding contact with the surface of the dustproof cloth 3;

[0043] A water-absorbing gasket 54 is fixed to the inner side of the gathered ring edge 53 . The water-absorbing gasket 54 is an elastic body made of sponge material. One side of the water-absorbing gasket 54 is in close contact with the surface of the dustproof cloth 3 .

[0044] By setting up the retracted ring edge 53 and the water-absorbing gasket 54, a retracted, relatively closed cavity can be formed between the edge of the sewage collecting chamber 52 and the dustproof cloth 3, thereby ensuring that the collected sewage can be gathered, reducing the probability of sewage causing secondary pollution to the dustproof cloth 3, and ensuring that the sewage is discharged more smoothly.

[0045] Furthermore, an open dirt collecting groove 311 is formed at the lower end of the dustproof cloth 3 , and a drain hole 312 is formed at the bottom of the dirt collecting groove 311 . The drain hole 312 is connected to the drain pipe 81 through a pipeline.

[0046] By setting up the sewage collecting trough 311, the sewage flowing down the surface of the dustproof cloth 3 can be gathered and discharged through the sewage discharge hole 312, thereby avoiding a small amount of sewage attached to the surface of the dustproof cloth 3 from remaining in the high-voltage motor end cover 1 and causing secondary pollution.

[0047] Furthermore, the linkage includes a reduction gearbox 7, the fan shaft 21 of the fan 2 is transmission-connected to the input end of the reduction gearbox 7, the gearbox output shaft 71 of the reduction gearbox 7 is fixedly passed through the middle of the first annular connecting tube 41 and the second annular connecting tube 51, and the gearbox output shaft 71 rotates through the dustproof cloth 3, the second joint 8 and is rotationally connected to the first joint 6.

[0048] When the fan shaft 21 of the fan 2 rotates, it is converted into power with a slower speed through the reduction gear box 7 and output by the gear box output shaft 71. The gear box output shaft 71 drives the cleaning nozzle 4 and the dirt collecting tray 5 to rotate synchronously through the first annular connecting tube 41 and the second annular connecting tube 51, achieving relatively slow rotation, so that the cleaning nozzle 4 and the dirt collecting tray 5 can slowly rotate along the axis of the dustproof cloth 3 and clean the dustproof cloth 3.

[0049] Working principle of the utility model: During daily use, the fan 2 rotates to draw external air into the high-voltage motor end cover 1 through the filter plate 11 and enters the high-voltage motor after passing through the dustproof cloth 3, cooling and dissipating the internal temperature of the high-voltage motor. The dual setting of the filter plate 11 and the dustproof cloth 3 can filter external dust well, avoiding dust accumulation inside the high-voltage motor and affecting the service life of the high-voltage motor.

[0050] When the fan shaft 21 of the fan 2 rotates, it is converted into power with a slower speed through the reduction gear box 7 and output by the gear box output shaft 71. The gear box output shaft 71 drives the cleaning nozzle 4 and the dirt collecting pan 5 to rotate synchronously through the first annular connecting pipe 41 and the second annular connecting pipe 51, thereby achieving relatively slow rotation, so that the cleaning nozzle 4 and the dirt collecting pan 5 can rotate slowly along the axis of the dustproof cloth 3, and the first joint 6 simultaneously delivers cleaning liquid to the cleaning nozzle 4, and the cleaning liquid is sprayed by the cleaning nozzle 4 to clean the dustproof cloth 3. The cleaned cleaning liquid passes through the dustproof cloth 3 and is collected by the dirt collecting pan 5. After being collected, the dirt collecting pan 5 is further discharged through the second joint 8, thereby completing the continuous cleaning operation without stopping the machine. The dustproof cloth 3 can continue to maintain the best filtering effect during long-term use, meeting the long-term continuous dust prevention needs of the high-voltage motor, and at the same time, it can also collect and discharge the flushed dirt in real time to avoid the problem of secondary pollution.

[0051] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-voltage motor dustproof device, comprising a high-voltage motor end cover (1) fixed to a high-voltage motor housing, a filter screen (11) for air intake fixed to one side of the high-voltage motor end cover (1), and a fan (2) rotatably mounted on the inner side of the high-voltage motor end cover (1) close to the filter screen (11), characterized in that: A dustproof cloth (3) is detachably fixed to the side of the fan (2) away from the filter screen (11) via a mounting ring (31), and a cleaning nozzle (4) and a dirt collecting tray (5) are respectively mounted on both sides of the dustproof cloth (3), the cleaning nozzle (4) being located on the side of the dustproof cloth (3) away from the fan (2), and the dirt collecting tray (5) being located on the side of the dustproof cloth (3) close to the fan (2); The fan (2) drives the cleaning nozzle (4) and the dirt collecting tray (5) to rotate along the axis of the dustproof cloth (3) through a linkage member, the diameter of the cleaning nozzle (4) and the dirt collecting tray (5) is equal to the radius of the middle part of the dustproof cloth (3) exposed from the mounting ring (31), and the positions of the cleaning nozzle (4) and the dirt collecting tray (5) coincide with each other in the horizontal direction; The end of the cleaning nozzle (4) is rotatably connected to a first joint (6), and the first joint (6) transports cleaning liquid into the cleaning nozzle (4). The end of the dirt collecting tray (5) is rotatably connected to a second joint (8), and the second joint (8) discharges dirt collected in the dirt collecting tray (5) through a pipeline.

2. A high-voltage motor dust prevention device according to claim 1, characterized in that: A first annular connecting pipe (41) is formed on one side of the cleaning nozzle (4) and is coaxially arranged with the dustproof cloth (3). The first annular connecting pipe (41) is connected to the cavity in the cleaning nozzle (4). A plurality of water spray holes (42) are formed on one side of the cleaning nozzle (4) that is in contact with the dustproof cloth (3). The first joint (6) is rotatably connected to the end of the first annular connecting pipe (41), and the output end of the first joint (6) is communicated with the first annular connecting pipe (41), and the input end of the first joint (6) is communicated with the output end of a pump for externally delivering cleaning liquid through a delivery pipe (61).

3. A high-voltage motor dust prevention device according to claim 2, characterized in that: A second ring connecting pipe (51) is formed on one side of the dirt collecting tray (5) and is coaxially arranged with the dustproof cloth (3); a dirt collecting cavity (52) is formed on the side of the dirt collecting tray (5) that is in contact with the dustproof cloth (3); and the second ring connecting pipe (51) is in communication with the dirt collecting cavity (52); The second joint (8) is rotatably connected to the end of the second ring connecting pipe (51), and the input end of the second joint (8) is communicated with the second ring connecting pipe (51), and the output end of the second joint (8) is communicated with the input end of an external sewage pump through a sewage pipe (81).

4. A high-voltage motor dust prevention device according to claim 3, characterized in that: The cross section of the sewage collecting chamber (52) covers the cross sections of multiple water spray holes (42); A side of the dirt collecting cavity (52) close to the dustproof cloth (3) is formed with an inwardly contracted ring edge (53), and one side of the ring edge (53) is in sliding contact with the surface of the dustproof cloth (3); A water-absorbing gasket (54) is fixed on the inner side of the retracted ring edge (53). The water-absorbing gasket (54) is an elastic body made of sponge material. One side of the water-absorbing gasket (54) is in close contact with the surface of the dustproof cloth (3).

5. The high-voltage motor dust prevention device according to claim 3, characterized in that: An open dirt collecting trough (311) is provided at the lower end of the dustproof cloth (3), a drain hole (312) is provided at the bottom of the dirt collecting trough (311), and the drain hole (312) is connected to the drain pipe (81) through a pipeline.

6. A high-voltage motor dust prevention device according to claim 3, characterized in that: The linkage member includes a reduction gearbox (7), the fan shaft (21) of the fan (2) is in transmission connection with the input end of the reduction gearbox (7), the gearbox output shaft (71) of the reduction gearbox (7) is fixedly arranged through the middle of the first annular connecting tube (41) and the second annular connecting tube (51), and the gearbox output shaft (71) rotates through the dustproof cloth (3), the second joint (8), and is rotationally connected to the first joint (6).

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