Rotary atomizer

Abstract

The utility model provides a kind of rotary atomizer, comprising: gearbox, gearbox is equipped with oil inlet and oil outlet;Cover, cover is equipped with pedestal and distribution tray in it;Gearbox is located on the upside of pedestal, the upside of pedestal is equipped with installation channel and the first oil storage cavity being communicated with oil outlet, the lower end of installation channel is equipped with the second oil storage cavity of pedestal;Main shaft, main shaft is located in installation channel, the output end of gearbox is connected with the upper end of main shaft, the lower end of main shaft passes through the second oil storage cavity and distribution tray;Oil passage being communicated gearbox and the second oil storage cavity is formed between the inner wall surface of main shaft and installation channel;Atomization wheel, the lower end of main shaft is connected with atomization wheel, the discharge end of distribution tray is inserted into the feed inlet of atomization wheel;First pump body and second pump body, first pump body is communicated between oil inlet and first oil storage cavity, second pump body is communicated between second oil storage cavity and oil inlet;Heat exchanger, heat exchanger is communicated between first pump body and oil inlet, and / or, heat exchanger is communicated between second pump body and oil inlet.

Description

Technical Field

[0001] This utility model relates to the field of atomizer technology, and more specifically, to a rotary atomizer. Background Technology

[0002] Existing rotary atomizer lubrication systems only address the gearbox, failing to adequately consider the lubrication needs of the spindle and related components. During high-speed rotation, insufficient lubrication generates significant frictional heat in the spindle, leading to localized temperature increases, accelerated component wear, and even equipment shutdown. This not only increases maintenance costs but also reduces production efficiency. Furthermore, existing rotary atomizers suffer from low cooling efficiency; under prolonged high-load operation, the equipment is prone to overheating and malfunctions, failing to meet the cooling requirements under high-load conditions. Utility Model Content

[0003] This invention provides a new technical solution for a rotary atomizer, which can at least solve the technical problem of overheating in existing rotary atomizers.

[0004] According to a first aspect of this utility model, a rotary atomizer is provided, comprising: a gearbox having an oil inlet and an oil outlet on its lower side; an outer cover having a base and a dispensing disc connected sequentially from top to bottom inside the outer cover; the gearbox being disposed on the upper side of the base, the upper side of the base having an installation channel and a first oil storage chamber communicating with the oil outlet, the upper end of the installation channel communicating with the gearbox, and the base having a second oil storage chamber communicating with the lower end of the installation channel; a main shaft being disposed in the installation channel, the upper end of the main shaft being connected to the output end of the gearbox, and the lower end of the main shaft passing through the second oil storage chamber and... The material distribution plate; an oil passage connecting the gearbox and the second oil storage chamber is formed between the outer peripheral surface of the main shaft and the inner wall surface of the mounting channel; an atomizing wheel, located at the lower end of the outer cover, with the lower end of the main shaft connected to the atomizing wheel, and the discharge end of the material distribution plate extending into the inlet of the atomizing wheel; a first pump body and a second pump body, the first pump body connecting the oil inlet and the first oil storage chamber, and the second pump body connecting the second oil storage chamber and the oil inlet; a heat exchanger connecting the first pump body and the oil inlet, and / or, the heat exchanger connecting the second pump body and the oil inlet.

[0005] Optionally, the rotary atomizer further includes: a filter connected between the first pump body and the oil inlet, and / or, the filter connected between the second pump body and the oil inlet.

[0006] Optionally, the first pump body and the second pump body are respectively connected to the same or different heat exchangers, and the first pump body and the second pump body are respectively connected to the same or different filters.

[0007] Optionally, the liquid outlet end of the first pump body and / or the liquid outlet end of the second pump body are connected to the liquid inlet end of the filter, and the liquid outlet end of the filter is connected to the liquid inlet end of the heat exchanger.

[0008] Optionally, the filter is equipped with an oil pressure sensor and an oil temperature sensor.

[0009] Optionally, the dispensing disc is provided with an annular flow channel extending along its circumference, a water supply pipe is provided on the upper side of the dispensing disc and the water supply pipe is connected to the annular flow channel, and a plurality of water outlet holes are provided on the lower side of the dispensing disc at intervals along its circumference, the water outlet holes facing the gap between the inner wall of the feed inlet of the atomizing wheel and the dispensing disc.

[0010] Optionally, the outer periphery of the upper side of the base is provided with a flange, the flange is fixedly connected to the outer cover and seals the opening at its upper end, and the flange is provided with an air inlet and an air outlet communicating with the inside of the outer cover.

[0011] Optionally, the gap between the lower end of the outer cover and the atomizing wheel is connected to the air inlet.

[0012] Optionally, the atomizing wheel includes: a wheel body connected to the main shaft, the wheel body having a liquid container, and an inlet communicating with the liquid container on the upper side of the wheel body; and a nozzle made of silicon carbide, with a plurality of nozzles on the circumferential sidewall of the wheel body, the nozzles communicating with the liquid container.

[0013] Optionally, the nozzle is detachably mounted on the wheel body, and an indicator groove is provided at the end of the nozzle away from the liquid container.

[0014] According to the rotary atomizer of this utility model, the lubricating oil in the first oil storage chamber is delivered to the gearbox by the first pump body, and the lubricating oil in the second oil storage chamber is delivered to the gearbox by the second pump body. The lubricating oil is cooled during the delivery process by a heat exchanger, so that the lubricating oil can lubricate and cool the structure inside the gearbox. At the same time, the gearbox and the second oil storage chamber are connected by the oil passage formed between the inner wall surface of the mounting channel and the outer peripheral surface of the main shaft, and the gearbox and the first oil storage chamber are connected by the oil outlet of the gearbox. This enables the lubricating oil to circulate between the gearbox, the first oil storage chamber and the second oil storage chamber, so as to provide comprehensive lubrication and cooling for the gearbox, the main shaft and its structure. This effectively avoids the rotary atomizer from stopping or being damaged due to overheating or poor rotation, and significantly improves the reliability of the rotary atomizer.

[0015] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0017] Figure 1 This is a partial structural schematic diagram of a rotary atomizer according to an embodiment of the present invention; Figure 2 This is a partial structural cross-sectional view of a rotary atomizer according to an embodiment of the present invention; Figure 3 yes Figure 2 Enlarged view of the structure at point A in the middle circle.

[0018] Figure Labels 10. Gearbox; 20. Outer casing; 30. Base; 31. Oil passage; 32. First oil reservoir; 33. Second oil reservoir; 34. Flange; 341. Air inlet; 40. Distributor plate; 41. Annular flow channel; 42. Water supply pipe; 43. Water outlet; 50. Main shaft; 60. Atomizing wheel; 61. Wheel body; 611. Feed inlet; 62. Nozzle; 63. Connecting sleeve; 70. Second pump body; 80. Motor. Detailed Implementation

[0019] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0020] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0021] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0022] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0024] The rotary atomizer according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1 to 3 As shown, the rotary atomizer according to an embodiment of the present invention includes: a gearbox 10, an outer cover 20, a main shaft 50, an atomizing wheel 60, a first pump body, a second pump body 70, and a heat exchanger.

[0026] Specifically, the gearbox 10 has an oil inlet and an oil outlet on its lower side; the outer cover 20 has a base 30 and a distribution plate 40 connected sequentially from top to bottom; the gearbox 10 is located on the upper side of the base 30, which has an installation channel and a first oil storage chamber 32 communicating with the oil outlet; the upper end of the installation channel communicates with the gearbox 10, and the base 30 has a second oil storage chamber 33 communicating with the lower end of the installation channel; the main shaft 50 is located in the installation channel, with its upper end connected to the output end of the gearbox 10, and its lower end passing through the second oil storage chamber 33. The distribution plate 40; an oil passage 31 connecting the gearbox 10 and the second oil storage chamber 33 is formed between the outer peripheral surface of the main shaft 50 and the inner wall surface of the mounting channel; the atomizing wheel 60 is located at the lower end of the outer cover 20, the lower end of the main shaft 50 is connected to the atomizing wheel 60, and the discharge end of the distribution plate 40 extends into the feed port 611 of the atomizing wheel 60; the first pump body is connected between the oil inlet and the first oil storage chamber 32, and the second pump body 70 is connected between the second oil storage chamber 33 and the oil inlet; the heat exchanger is connected between the first pump body and the oil inlet, and / or, the heat exchanger is connected between the second pump body 70 and the oil inlet.

[0027] In other words, such as Figures 1 to 3 As shown, the rotary atomizer according to an embodiment of the present invention mainly includes a motor 80, a gearbox 10, and an outer cover 20. The motor 80 is fixedly connected to the upper side of the gearbox 10, and the output end of the motor 80 is connected to the gearbox 10 in a transmission manner. The side wall or upper side of the gearbox 10 is provided with an oil inlet communicating with its interior, and the lower side of the gearbox 10 is provided with an oil outlet communicating with its interior. The outer cover 20 can be a conical cover, with the upper end of the conical cover being the large-diameter end and the lower end of the conical cover being the small-diameter end. The conical cover is provided with a base 30 and a distributing plate 40, the distributing plate 40 being fixedly connected to the lower side of the base 30, the base 30 being fixedly connected to the conical cover, and the lower side of the gearbox 10 being fixedly connected to the upper side of the base 30. The upper side of the base 30 is provided with an installation channel and a first oil reservoir 32. The installation channel extends along the height direction of the base 30, and the upper end of the installation channel corresponds to the position of the output end on the lower side of the gearbox 10, so that the installation channel can communicate with the gearbox 10 through the gap on the outer periphery of the output end of the gearbox 10. The upper side of the first oil reservoir 32 is an open side, which corresponds to the position of the oil outlet of the gearbox 10, so that the first oil reservoir 32 communicates with the oil outlet of the gearbox 10.

[0028] The base 30 has a second oil storage chamber 33 at the lower end of the mounting channel, which is connected to the lower end of the mounting channel. A main shaft 50 is installed inside the mounting channel. The upper end of the main shaft 50 is fixedly connected to the output end of the gearbox 10. The lower end of the main shaft 50 passes through the second oil storage chamber 33 and is located below the distribution plate 40. The main shaft 50 is rotatably connected to the lower wall of the second oil storage chamber 33 and the distribution plate 40. An atomizing wheel 60 is fixedly connected to the lower end of the main shaft 50. An inlet 611 is provided on the upper side of the atomizing wheel 60. The outlet end of the distribution plate 40 extends into the inlet 611, allowing the distribution plate 40 to supply the required liquid to the atomizing wheel 60. The outer peripheral surface of the main shaft 50 is spaced apart from the inner wall surface of the mounting channel, thereby forming an oil passage 31 between the outer peripheral surface of the main shaft 50 and the inner wall surface of the mounting channel, which connects the gearbox 10 and the second oil reservoir 33, allowing the lubricating oil in the gearbox 10 to flow into the second oil reservoir.

[0029] A first pump body is provided between the oil inlet of the transmission 10 and the first oil reservoir 32. The inlet end of the first pump body is connected to the first oil reservoir 32, and the outlet end of the first pump body is connected to the oil inlet of the transmission 10. Thus, the first pump body can deliver lubricating oil from the first oil reservoir 32 to the transmission 10. A second pump body 70 is provided between the oil inlet of the transmission 10 and the second oil reservoir 33. The inlet end of the second pump body 70 is connected to the second oil reservoir 33, and the outlet end of the second pump body 70 is connected to the oil inlet of the transmission 10. Thus, the second pump body 70 can deliver lubricating oil from the second oil reservoir 33 to the transmission 10.

[0030] In this embodiment, the rotary atomizer is equipped with a heat exchanger, and the location of the heat exchanger includes, but is not limited to, the following: Scenario 1: The first pump body is connected to the oil inlet of the gearbox 10 through a heat exchanger; in this case, the lubricating oil flowing out of the first pump body can be cooled through the heat exchanger. Scenario 2: The second pump body 70 is connected to the oil inlet of the gearbox 10 through a heat exchanger; in this case, the lubricating oil flowing out of the second pump body 70 can be cooled through the heat exchanger. Case 3: Both the first pump body and the second pump body 70 are connected to the oil inlet of the gearbox 10 through a heat exchanger; in this case, the lubricating oil flowing out of the first pump body and the second pump body 70 can be cooled through the heat exchanger.

[0031] According to the embodiment of this utility model, when the rotary atomizer is in use, the first pump body can deliver the lubricating oil in the first oil storage chamber 32 to the gearbox 10, and the second pump body 70 can deliver the lubricating oil in the second oil storage chamber 33 to the gearbox 10. The heat exchanger can cool the lubricating oil flowing out of the first pump body and / or the second pump body 70, thereby lubricating and cooling the structure inside the gearbox 10. Part of the lubricating oil in the gearbox 10 flows into the first oil storage chamber 32 from its oil outlet, and another part of the lubricating oil in the gearbox 10 flows into the second oil storage chamber 33 along the oil passage 31 formed between the inner wall of the mounting channel and the outer peripheral surface of the main shaft 50, thereby lubricating and cooling the main shaft 50 and the structure thereon.

[0032] Therefore, according to the rotary atomizer provided in this embodiment, the lubricating oil in the first oil storage chamber 32 is delivered to the gearbox 10 by the first pump body, and the lubricating oil in the second oil storage chamber 33 is delivered to the gearbox 10 by the second pump body 70. The lubricating oil is cooled during the delivery process by the heat exchanger, so that the lubricating oil can lubricate and cool the structure inside the gearbox 10. At the same time, the gearbox 10 and the second oil storage chamber 33 are connected by the oil passage 31 formed between the inner wall surface of the mounting channel and the outer peripheral surface of the main shaft 50, and the gearbox 10 and the first oil storage chamber 32 are connected by the oil outlet of the gearbox 10. The lubricating oil can circulate between the gearbox 10, the first oil storage chamber 32 and the second oil storage chamber 33, so as to fully lubricate and cool the gearbox 10, the main shaft 50 and its structure. This can effectively avoid the rotary atomizer from stopping or being damaged due to overheating or poor rotation, and significantly improve the reliability of the rotary atomizer.

[0033] In some embodiments of this utility model, a bushing is provided between the outer periphery of the main shaft 50 and the lower side wall of the second oil storage cavity 33 and the material distribution plate 40, and the main shaft 50 passes through the bushing and is rotatable relative to the bushing.

[0034] According to one embodiment of the present invention, the rotary atomizer further includes: a filter, the filter being connected between the first pump body and the oil inlet, and / or, the filter being connected between the second pump body 70 and the oil inlet.

[0035] Specifically, the rotary atomizer is equipped with a filter, and the filter can be placed in the following locations, including but not limited to: Scenario 1: The first pump body is connected to the oil inlet of the gearbox 10 through a filter and a heat exchanger; in this case, the lubricating oil flowing out of the first pump body can be filtered through the filter. Scenario 2: The second pump body 70 is connected to the oil inlet of the gearbox 10 through a filter and a heat exchanger; in this case, the lubricating oil flowing out of the second pump body 70 can be filtered through the filter. Case 3: Both the first pump body and the second pump body 70 are connected to the oil inlet of the gearbox 10 through a filter and a heat exchanger; in this case, the lubricating oil flowing out of the first pump body and the second pump body 70 can be filtered through the heat exchanger.

[0036] In this embodiment, the filter effectively filters impurities and particulate matter in the lubricating oil, which can effectively reduce the risk of equipment wear and failure caused by lubricating oil contamination, and significantly improve the reliability and operational stability of the rotary atomizer.

[0037] In some specific embodiments of this utility model, the first pump body and the second pump body 70 are respectively connected to the same or different heat exchangers, and the first pump body and the second pump body 70 are respectively connected to the same or different filters.

[0038] In other words, the rotary atomizer has one or two heat exchangers. When the rotary atomizer has one heat exchanger, the liquid outlet of the first pump body and / or the liquid outlet of the second pump body 70 is connected to the liquid inlet of the first medium channel of the heat exchanger, and the liquid outlet of the first medium channel of the heat exchanger is connected to the oil inlet of the gearbox 10. In this case, the lubricating oil flowing out of the first pump body and the second pump body 70 can be cooled simultaneously through one heat exchanger, resulting in a simple structure.

[0039] When the rotary atomizer has two heat exchangers, these two heat exchangers are designated as a first heat exchanger and a second heat exchanger. The liquid outlet of the first pump body is connected to the liquid inlet of the first medium channel of the first heat exchanger, and the liquid outlet of the first medium channel of the first heat exchanger is connected to the oil inlet of the gearbox 10. The liquid outlet of the second pump body 70 is connected to the liquid inlet of the first medium channel of the second heat exchanger, and the liquid outlet of the first medium channel of the second heat exchanger is connected to the oil inlet of the gearbox 10. In this configuration, the lubricating oil flowing out of the first pump body and the second pump body 70 is cooled by different heat exchangers, which effectively improves cooling efficiency and thus effectively prevents the rotary atomizer from overheating.

[0040] According to one embodiment of the present invention, the liquid outlet end of the first pump body and / or the liquid outlet end of the second pump body 70 are connected to the liquid inlet end of the filter, and the liquid outlet end of the filter is connected to the liquid inlet end of the heat exchanger.

[0041] Specifically, when the outlet end of the first pump body is connected to the oil inlet of the gearbox through the heat exchanger, the inlet end of the filter is connected to the outlet end of the first pump body, the outlet end of the filter is connected to the inlet end of the first medium channel of the heat exchanger, and the outlet end of the first medium channel of the heat exchanger is connected to the oil inlet of the gearbox 10; when the outlet end of the second pump body 70 is connected to the oil inlet of the gearbox through the heat exchanger, the inlet end of the filter is connected to the outlet end of the second pump body 70, the outlet end of the filter is connected to the inlet end of the first medium channel of the heat exchanger, and the outlet end of the first medium channel of the heat exchanger is connected to the oil inlet of the gearbox 10.

[0042] In this embodiment, the filter can filter the lubricating oil before it enters the heat exchanger, which can effectively prevent impurities or particles in the lubricating oil from accumulating in the heat exchanger, thereby ensuring the service life and cooling efficiency of the heat exchanger.

[0043] In some specific embodiments of this invention, the filter is equipped with an oil pressure sensor and an oil temperature sensor. The oil pressure sensor can detect the pressure of the lubricating oil in real time, while the oil temperature sensor is used to monitor the temperature of the lubricating oil in real time. By monitoring the oil pressure and oil temperature of the lubricating oil in real time, it can be ensured that the lubricating oil is always within the normal operating range, thereby reducing wear and damage to the rotary atomizer caused by abnormal pressure and temperature.

[0044] According to one embodiment of the present invention, the dispensing disc 40 is provided with an annular flow channel 41 extending along its circumference, and a water supply pipe 42 is provided on the upper side of the dispensing disc 40, which is connected to the annular flow channel 41. The lower side of the dispensing disc 40 is provided with a plurality of water outlet holes 43 distributed at intervals along its circumference, and the water outlet holes 43 face the gap between the inner wall of the feed inlet 611 of the atomizing wheel 60 and the dispensing disc 40.

[0045] Specifically, the dispensing disc 40 is provided with a dispensing chamber and an annular flow channel 41 arranged sequentially from top to bottom. A feed pipe and a water supply pipe 42 are provided on the upper side of the dispensing disc 40. The lower end of the feed pipe is connected to the dispensing chamber, and the lower end of the water supply pipe 42 is connected to the annular flow channel 41. The lower end of the dispensing disc 40 is provided with a two-tiered boss, with the lower part being the first tier and the upper part being the second tier. The diameter of the second tier is larger than that of the first tier. The lower end of the first tier of the two-tiered boss is provided with a discharge port connected to the dispensing chamber. The first tier of the two-tiered boss extends into the feed inlet 611 of the atomizing wheel 60 and is spaced apart from the inner wall surface of the feed inlet 611. The second stage of the second-stage boss is located on the upper side of the atomizing wheel 60. The lower end of the second stage of the second-stage boss is provided with multiple water outlet holes 43. The multiple water outlet holes 43 are distributed circumferentially along the main shaft 50. The upper end of each water outlet hole 43 is connected to the annular flow channel 41. The lower end of each water outlet hole 43 faces the gap between the inner wall surface of the feed port 611 of the atomizing wheel 60 and the first stage of the second-stage boss.

[0046] In this embodiment, water is sprayed into the atomizing wheel 60 through the water outlet 43, enabling rapid cleaning of the inner wall surface of the atomizing wheel 60. This effectively prevents material residue and scale buildup on the inner wall surface of the atomizing wheel 60, and also prevents scale buildup between the inner wall surface of the atomizing wheel 60's feed inlet 611 and the distribution plate 40. Therefore, it ensures that the atomizing wheel 60 maintains good working condition when put back into use, thereby improving the operating efficiency and reliability of the rotary atomizer.

[0047] In addition, when the rotary atomizer overheats or rotates unevenly, water can be sprayed into the atomizing wheel 60 through the water outlet 43 in a timely manner, which can quickly reduce the temperature of the atomizing wheel 60 and its surrounding structure. It can also clean the inner wall of the feed inlet 611 of the atomizing wheel 60 and the distribution plate 40, thereby ensuring the smooth rotation of the atomizing wheel 60 and preventing damage to the rotary atomizer.

[0048] In some specific embodiments of this utility model, a flange 34 is provided on the outer periphery of the upper side of the base 30. The flange 34 is fixedly connected to the outer cover 20 and blocks the opening at its upper end. The flange 34 is provided with an air inlet 341 and an air outlet that communicate with the interior of the outer cover 20.

[0049] Specifically, a flange 34 is provided on the upper outer periphery of the base 30, and the upper end of the outer cover 20 is fixedly connected to the flange 34, thereby sealing the opening at the upper end of the outer cover 20 through the flange 34. The upper ends of the water supply pipe 42 and the feed pipe pass through the flange 34 and extend to the outside of the outer cover 20, thereby facilitating external connection. The flange 34 is provided with an air inlet 341 and an air outlet, both of which are connected to the inside of the outer cover 20. Cooling air can enter the outer cover 20 through the air inlet 341 to cool the internal structure, and then flow out of the outer cover 20 from the air outlet, which can effectively prevent the rotating atomizer from overheating.

[0050] According to one embodiment of the present invention, the gap between the lower end of the outer cover 20 and the atomizing wheel 60 is connected to the air inlet 341.

[0051] In this embodiment, after cooling the internal structure of the outer cover 20, the cooling air can flow out from the gap between the lower end of the outer cover 20 and the atomizing wheel 60. This allows the generated airflow to clean the gap between the atomizing wheel 60 and the outer cover 20, thereby effectively preventing the rotating atomizer from shutting down or being damaged due to increased operating resistance caused by accumulated material.

[0052] In some specific embodiments of this utility model, the atomizing wheel 60 includes: a wheel body 61, which is connected to the main shaft 50, and the wheel body 61 is provided with a liquid cavity. The upper side of the wheel body 61 is provided with an inlet 611 that communicates with the liquid cavity; and a nozzle 62, which is made of silicon carbide. Multiple nozzles 62 are provided on the circumferential sidewall of the wheel body 61, and the nozzles 62 communicate with the liquid cavity.

[0053] In other words, the atomizing wheel 60 mainly includes a wheel body 61 and a nozzle 62. The wheel body 61 has a liquid reservoir, and its upper side has an inlet 611 communicating with the liquid reservoir. The circumferential sidewall of the wheel body 61 has multiple through-hole stepped holes, spaced apart circumferentially. The radial dimension of the stepped hole near the liquid reservoir is larger than the radial dimension away from the liquid reservoir. Each stepped hole is fitted with a matching connecting sleeve 63, and a sealing ring is provided between the connecting sleeve 63 and the inner wall of the stepped hole.

[0054] The connecting sleeve 63 has a through-hole running along its axial direction. The inner wall of the mounting hole is conical. The radial dimension of the mounting hole near the material cavity is larger than the radial dimension away from the material cavity. A nozzle 62, which is adapted to the mounting hole, is inserted into the mounting hole and communicates with the material cavity. The nozzle 62 can be made of silicon carbide, which has good wear resistance, effectively extending the service life of the nozzle 62, reducing the replacement frequency, and thus improving the operating efficiency and economy of the equipment.

[0055] During operation, the motor 80 drives the main shaft 50 to rotate at high speed via the gearbox 10, which in turn drives the atomizing wheel 60 to rotate as well. When the atomizing wheel 60 rotates, the dispensing disc 40 supplies the required liquid to the atomizing wheel 60. After the liquid enters the liquid chamber of the atomizing wheel 60, it is sprayed out from the nozzle 62 and atomized under the action of centrifugal force.

[0056] According to one embodiment of the present invention, a nozzle 62 is detachably disposed on a wheel body 61, and an indicator groove is provided at the end of the nozzle 62 away from the liquid container.

[0057] Specifically, the wheel body 61 includes a base and a top cover, which are fixedly connected together by multiple screws. The base and the top cover cooperate to define the discharge liquid cavity. A connecting sleeve 63 is inserted into the side wall of the top cover, and a nozzle 62 is inserted into the connecting sleeve 63. When disassembling the nozzle 62, the base and the top cover are first separated, and then the nozzle 62 can be pulled out from the inside of the top cover.

[0058] In this embodiment, an indicator groove is provided at the end of the nozzle 62 away from the liquid receiving chamber. The indicator groove can be an annular groove coaxial with the nozzle 62. By observing the indicator groove, the wear level of the nozzle 62 can be visually confirmed. When the nozzle orifice of the nozzle 62 is tangent to the indicator groove, it indicates that the wear of the nozzle 62 has reached the point where it needs to be replaced, and the nozzle 62 can be replaced at this time.

[0059] In summary, according to the rotary atomizer provided in this embodiment, the lubricating oil in the first oil storage chamber 32 is delivered to the gearbox 10 by the first pump body, and the lubricating oil in the second oil storage chamber 33 is delivered to the gearbox 10 by the second pump body 70. The lubricating oil is cooled during the delivery process by a heat exchanger, so that the lubricating oil can lubricate and cool the structure inside the gearbox 10. At the same time, the gearbox 10 and the second oil storage chamber 33 are connected by the oil passage 31 formed between the inner wall surface of the mounting channel and the outer peripheral surface of the main shaft 50, and the gearbox 10 and the first oil storage chamber 32 are connected by the oil outlet of the gearbox 10. This enables the lubricating oil to circulate between the gearbox 10, the first oil storage chamber 32 and the second oil storage chamber 33, thereby providing comprehensive lubrication and cooling for the gearbox 10, the main shaft 50 and its structure. This effectively avoids the rotary atomizer from stopping or being damaged due to overheating or poor rotation, and significantly improves the reliability of the rotary atomizer.

[0060] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0061] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A rotary atomizer, characterized in that, include: The gearbox (10) is provided with an oil inlet and an oil outlet on its lower side; The outer cover (20) has a base (30) and a material distribution plate (40) connected from top to bottom inside the outer cover (20); The gearbox (10) is located on the upper side of the base (30). The upper side of the base (30) is provided with an installation channel and a first oil storage chamber (32) connected to the oil outlet. The upper end of the installation channel is connected to the gearbox (10). The base (30) is provided with a second oil storage chamber (33) connected to the lower end of the installation channel. A main shaft (50) is provided in the mounting channel. The upper end of the main shaft (50) is connected to the output end of the gearbox (10), and the lower end of the main shaft (50) passes through the second oil storage chamber (33) and the distribution plate (40). An oil passage (31) connecting the gearbox (10) and the second oil storage chamber (33) is formed between the outer peripheral surface of the main shaft (50) and the inner wall surface of the mounting channel. Atomizing wheel (60), the atomizing wheel (60) is located at the lower end of the outer cover (20), the lower end of the main shaft (50) is connected to the atomizing wheel (60), and the discharge end of the distributing disc (40) extends into the feed inlet (611) of the atomizing wheel (60); A first pump body and a second pump body (70), wherein the first pump body is connected between the oil inlet and the first oil storage chamber (32), and the second pump body (70) is connected between the second oil storage chamber (33) and the oil inlet; A heat exchanger connected between the first pump body and the oil inlet, and / or, the heat exchanger connected between the second pump body (70) and the oil inlet.

2. The rotary atomizer according to claim 1, characterized in that, Also includes: A filter, the filter being connected between the first pump body and the oil inlet, and / or, the filter being connected between the second pump body (70) and the oil inlet.

3. The rotary atomizer according to claim 2, characterized in that, The first pump body and the second pump body (70) are respectively connected to the same or different heat exchangers, and the first pump body and the second pump body (70) are respectively connected to the same or different filters.

4. The rotary atomizer according to claim 2, characterized in that, The liquid outlet end of the first pump body and / or the liquid outlet end of the second pump body (70) are connected to the liquid inlet end of the filter, and the liquid outlet end of the filter is connected to the liquid inlet end of the heat exchanger.

5. The rotary atomizer according to claim 3, characterized in that, The filter is equipped with an oil pressure sensor and an oil temperature sensor.

6. The rotary atomizer according to claim 1, characterized in that, The distributing disc (40) is provided with an annular flow channel (41) extending along its circumference. A water supply pipe (42) is provided on the upper side of the distributing disc (40), and the water supply pipe (42) is connected to the annular flow channel (41). A plurality of water outlet holes (43) are provided on the lower side of the distributing disc (40) at intervals along its circumference. The water outlet holes (43) face the gap between the inner wall of the feed inlet (611) of the atomizing wheel (60) and the distributing disc (40).

7. The rotary atomizer according to claim 1, characterized in that, The base (30) has a flange (34) on its outer periphery. The flange (34) is fixedly connected to the outer cover (20) and seals the opening at its upper end. The flange (34) has an air inlet (341) and an air outlet that communicate with the inside of the outer cover (20).

8. The rotary atomizer according to claim 7, characterized in that, The gap between the lower end of the outer cover (20) and the atomizing wheel (60) is connected to the air inlet (341).

9. The rotary atomizer according to claim 1, characterized in that, The atomizing wheel (60) includes: Wheel body (61), the wheel body (61) is connected to the main shaft (50), the wheel body (61) is provided with a liquid cavity, and the upper side of the wheel body (61) is provided with a feed inlet (611) communicating with the liquid cavity; The nozzle (62) is made of silicon carbide. The circumferential sidewall of the wheel body (61) is provided with a plurality of the nozzles (62), and the nozzles (62) are connected to the liquid cavity.

10. The rotary atomizer according to claim 9, characterized in that, The nozzle (62) is detachably mounted on the wheel body (61), and an indicator groove is provided at the end of the nozzle (62) away from the liquid container.

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