CN218920190U - Motor cooling structure, cooling system and spraying equipment of spraying equipment - Google Patents

Abstract

The utility model discloses a motor cooling structure and a cooling system of spraying equipment. The motor cooling structure comprises a motor, an atomizing disk and a water cooling piece. The motor comprises a main body and a driving shaft extending from the main body; the atomizing disk is arranged on the driving shaft; the water cooling piece is sleeved on the main body and is provided with a water cooling channel, a water inlet and a water outlet, and the water inlet and the water outlet are communicated with the water cooling channel. In the motor cooling structure of the spraying device, the motor provides centrifugal force for the atomizing disk through the driving shaft, so that the atomizing disk can atomize feed liquid under the driving of the centrifugal force, and in the running process of the motor, the water cooling piece provides a cooling function for the motor, so that the motor can normally run at a proper temperature, and the normal production of spraying equipment is ensured.

Description

Motor cooling structure of spraying equipment, cooling system and spraying equipment

technical field

The utility model relates to the technical field of spraying machines, in particular to a motor cooling structure of spraying equipment, a cooling system and spraying equipment.

Background technique

The spraying machine is a special coating equipment that adopts spraying technology. The principle is to control the air flow to instantly push the air distribution reversing device to change direction, so that the piston of the air motor makes a stable and continuous reciprocating motion. The spraying machine is usually driven by a motor and the spraying machine is generally operated around the clock, so it will generate a lot of heat when it is used, especially when the motor power is too high, the motor is prone to overheating failure, which will cause the spraying machine to stop. This, in turn, stalled production and required cooling of the sprayer's motor.

Utility model content

The utility model provides a motor cooling structure of spraying equipment, a cooling system and the spraying equipment.

The motor cooling structure of the spraying equipment according to the embodiment of the utility model includes:

a motor comprising a main body and a drive shaft protruding from the main body;

an atomizing disc mounted on the drive shaft; and

A water-cooling element, the water-cooling element is sleeved on the main body and formed with a water-cooling channel, a water inlet and a water outlet, and the water inlet and the water outlet are both in communication with the water-cooling channel.

In the motor cooling structure of the spraying device in the embodiment of the present invention, the motor provides centrifugal force for the atomizing disc through the drive shaft, so that the atomizing disc can atomize the material liquid under the driving of the centrifugal force. During the operation of the motor, the water cooling part is The motor provides a cooling function so that the motor can operate normally at a suitable temperature, thereby ensuring the normal production of the spraying equipment.

In some embodiments, the central axis of the water inlet coincides with the central axis of the water outlet.

In some embodiments, the water cooling channel is isolated from the main body.

In some embodiments, the water cooling element includes an inner ring wall, an outer ring wall, a top wall and a bottom wall, the outer ring wall surrounds the inner ring wall, and the top wall connects the inner ring wall and the The outer ring wall, the bottom wall connects the inner ring wall and the outer ring wall, and the inner ring wall, the outer ring wall, the top wall and the bottom wall together form the water cooling channel , the inner ring wall is sleeved on the main body.

In some embodiments, both the water inlet and the water outlet are arranged on the outer ring wall.

In some embodiments, both the water inlet and the water outlet are provided with water pipe joints.

In some embodiments, the cross section of the main body is square, and the axial dimension of the main body is larger than the axial dimension of the water cooling element.

The cooling system of the embodiment of the utility model includes the motor cooling structure of the spraying equipment described in any of the above embodiments.

In some embodiments, the cooling system further includes a water pump and a cooling device, the water pump, the cooling device and the water cooling element are connected in series, the water pump is used to send cold water to the water inlet, and the cooling The device is used for exchanging heat with the water flowing out from the water outlet.

The spraying equipment in the embodiment of the present utility model includes the cooling system described in any embodiment above.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a structural schematic diagram of a motor cooling structure according to an embodiment of the present invention;

Fig. 2 is a full sectional view of the motor cooling structure of Fig. 1 in the direction of A;

Fig. 3 is a schematic structural view of a water-cooling element in an embodiment of the present invention;

Fig. 4 is a full cross-sectional view in direction B of the water cooling element in Fig. 3;

Fig. 5 is the structural representation of the spraying equipment of the utility model embodiment;

Fig. 6 is a schematic diagram of partial disassembly of the spraying equipment according to the embodiment of the present invention;

Fig. 7 is a schematic diagram of the connection relationship of the cooling system of an embodiment of the utility model;

Fig. 8 is a schematic diagram of the connection relationship of the cooling system in another example of the embodiment of the present invention.

Explanation of symbols of main components: spraying equipment 1000; motor cooling structure 100; motor 10; atomizing disc 20; water cooling member 30; main body 11; drive shaft 13; water cooling channel 31; water inlet 32; water outlet 33; Inner ring wall 34; outer ring wall 35; top wall 36; bottom wall 37; water pipe joint 50; cover structure 38; cooling system 1100; water pump 1101; cooling device 1103;

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", Orientation indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operation, and therefore cannot be construed as a limitation of the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection, electrical connection or mutual communication; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the mutual communication of two components role relationship. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The disclosure below provides many different implementations or examples for realizing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

Please refer to FIGS. 1-5 , the motor cooling structure 100 of the spraying equipment 1000 according to the embodiment of the present invention includes a motor 10 , an atomizing disc 20 and a water cooling element 30 . The motor 10 includes a main body 11 and a drive shaft 13 protruding from the main body 11; the atomizing disc 20 is installed on the drive shaft 13; the water cooling element 30 is sleeved on the main body 11 and formed with a water cooling channel 31, a water inlet 32 and a water outlet 33 , the water inlet 32 and the water outlet 33 are both in communication with the water cooling channel 31 .

In the motor cooling structure 100 of the spraying device according to the embodiment of the present utility model, the motor 10 provides centrifugal force for the atomizing disc 20 through the drive shaft 13, so that the atomizing disc 20 can atomize the material liquid under the driving of the centrifugal force. During the process, the water-cooling element 30 provides a cooling function for the motor 10 so that the motor 10 can operate normally at an appropriate temperature, thereby ensuring the normal production of the spraying equipment 1000 .

Specifically, the model of the motor 10 may be any model on the market, or a customized model. The shape of the main body 11 can be a square or a cylindrical shape. The embodiment of the present invention does not limit the specific shape of the main body 11. The drive shaft 13 can be integrally formed with the main body 11. The drive shaft 13 can also be connected by welding, bolts or keys. etc. are fixedly connected with the main body 11. Both the driving shaft 13 and the main body 11 can be made of metal, especially high-strength and high-density metal.

The atomizing disc 20 can be installed on the drive shaft 13 by means of welding, bolt connection or interference connection, and can also be matched with the drive shaft 13 through a coupling 40 . The shaft coupling 40 can play a role in buffering, damping and improving the dynamic performance of the shaft system. At the same time, the use of the coupling 40 to connect can weaken the starting force of the motor 10 when the motor 10 starts, thereby preventing the atomization disc 20 from Feed liquid is splashed. The coupling 40 can be installed on the side of the motor 10 close to the atomizing disc 20, the coupling 40 can be sleeved on the drive shaft 13 of the motor 10, and the coupling 40 can be connected to the atomizer through bolt connection, snap connection, etc. Disc 20 is fixedly connected.

The higher the degree of dispersion of the atomizing disc 20, the greater the drying efficiency; the more uniform the atomization, the smaller the change in the moisture content of the product. Therefore, the atomizing disc 20 should not only ensure the dispersion of the material liquid, but also control the particle size change to a minimum. Furthermore, the atomizing disc 20 needs to ensure that the centrifugal force received is stable within a certain range, so the stable operation of the motor 10 is required, and overheating failure is just one of the factors leading to the failure of the motor 10, so the motor 10 needs to be cooled by the water cooling element 30 .

The water cooling element 30 can be sleeved on the main body 11 of the motor 10 and rotate together with the main body 11, so the part of the water cooling element 30 in contact with the main body 11 can be close to the main body 11, and the water cooling element 30 and the main body 11 can be connected with interference, In order to ensure the connection strength of the motor 10 during operation. The water-cooling element 30 can be made of metal, so that the heat transfer between the water-cooling element 30 and the main body 11 can be heat conduction between solids, so as to obtain a better cooling effect.

The main body 11 of the motor 10 can be in close contact with the water-cooling element 30 , so the heat generated when the motor 10 is running can be transferred to the water-cooling element 30 . During operation, the cooling liquid enters the water-cooling channel 31 through the water inlet 32, circulates in the water-cooling channel 31 to transfer the heat generated during the operation of the motor 10, and flows out of the water-cooling element 30 from the water outlet 33, so as to ensure that the water-cooling channel 31 The temperature of the cooling water flow, or in other words, the temperature of the water flow in the water cooling channel 31 is always lower than the temperature of the contact part of the water cooling element 30 and the main body 11, so as to ensure the heat transfer efficiency.

Please refer to FIG. 2 and FIG. 4 , in some embodiments, the central axis of the water inlet 32 coincides with the central axis of the water outlet 33 .

In this way, when the cooling liquid is continuously supplied, the liquid level of the cooling liquid can always be kept below the water inlet 32 and the water outlet 33 , and the motor 10 can be sufficiently cooled.

Specifically, the central axis of the water inlet 32 coincides with the central axis of the water outlet 33, or in other words, the water inlet 32 and the water outlet 33 are arranged at the same height, which can ensure the natural circulation of the cooling liquid in the water cooling channel 31, and at the same time, can ensure The water-cooling channel 31 has always accommodated cooling liquid, so that the water-cooling element 30 can continuously cool the motor 10. It can be understood that when the cooling liquid cannot be continuously supplied due to external factors, since the water inlet 32 and the water outlet 33 are arranged at the same height, the cooling The water flow in the channel will not be drained directly, so a certain safety time is reserved, or in other words, when the supply of cooling liquid is insufficient, time can be reserved for early warning personnel to deal with.

Please refer to FIG. 1 and FIG. 2 , in some embodiments, the water cooling channel 31 is isolated from the main body 11 .

In this way, the cooling liquid in the water cooling passage 31 will not directly contact the surface of the main body 11 , preventing the cooling liquid from corroding the motor 10 .

Specifically, the water-cooling element 30 can be arranged in a cavity structure, and the water-cooling channel 31 can be arranged in the cavity part of the cavity. The water-cooling element 30 contacts the main body 11 through the wall of the cavity structure, or in other words, the heat generated by the motor 10 during operation The heat conduction between solids is carried out through the wall surface of the cavity structure of the main body 11 and the water cooling element 30, and at the same time, the cooling liquid in the water cooling channel 31 cools the above wall surface, so as to achieve the motor 10 under the condition of not directly contacting the motor 10. for cooling purposes.

Please refer to FIG. 1 and FIG. 2 , in some embodiments, the water cooling element 30 includes an inner ring wall 34 , an outer ring wall 35 , a top wall 36 and a bottom wall 37 , the outer ring wall 35 surrounds the inner ring wall 34 , and the top wall 36 Connecting the inner ring wall 34 and the outer ring wall 35, the bottom wall 37 connects the inner ring wall 34 and the outer ring wall 35, the inner ring wall 34, the outer ring wall 35, the top wall 36 and the bottom wall 37 together form a water cooling channel 31, the inner The ring wall 34 is sleeved on the main body 11 .

In this way, the water flow channel of the water cooling element 30 is a cavity structure surrounded by the inner ring wall 34, the outer ring wall 35, the top wall 36 and the bottom wall 37, and the cooling liquid can flow in the water cooling channel 31 without directly contacting the motor. In the case of 10, the motor 10 is cooled.

Specifically, the inner ring wall 34 and the outer ring wall 35 of the water cooling member 30 can be arranged oppositely, and the top wall 36 and the bottom wall 37 of the water cooling member 30 can be arranged oppositely, or in other words, the inner ring wall 34 and the outer ring wall of the water cooling member 30 35 is projected on the same plane along the radial direction of the water cooling element 30 , and the top wall 36 and the bottom wall 37 of the water cooling element 30 are projected on the same plane along the axial direction of the water cooling element 30 . The outer ring wall 35 can surround the inner ring wall 34 along the outer circumference of the inner ring wall 34 , or in other words, the outer ring wall 35 can at least partially serve as an offset surface of the inner ring wall 34 . The top wall 36 connects one side of the inner ring wall 34 and the outer ring wall 35, and the bottom wall 37 connects the other side of the inner ring wall 34 and the outer ring wall 35, or in other words, the width of the top wall 36 is that the outer ring wall 35 is opposite. The offset of the inner ring wall 34, similarly, the width of the bottom wall 37 is the offset of the outer ring wall 35 relative to the inner ring wall 34, and the width of the top wall 36 and the bottom wall 37 can be consistent, which is conducive to water cooling The channel 31 is manufactured in a shape, thereby reducing the manufacturing cost of the water cooling element 30 .

The inner ring wall 34, the outer ring wall 35, the top wall 36 and the bottom wall 37 together form a water cooling channel 31, the inner ring wall 34 is sleeved on the main body 11 to form heat conduction between solids, the water outlet 33 and the water inlet 32 can be respectively It is arranged on both sides of the water-cooling passage 31 , and may also be arranged on the same side of the water-cooling passage 31 . The water outlet 33 and the water inlet 32 communicate with the water-cooling channel 31, and the water outlet 33 and the water inlet 32 are arranged on both sides of the water-cooling channel 31 to obtain a larger independent space, which is conducive to the communication between the water-cooling member 30 and other water-cooling structures. The water outlet 33 The size of the water inlet 32 should adapt to the heat generated by the motor 10 during actual operation, and can be adjusted according to motors 10 of different powers.

Please refer to FIG. 1 , FIG. 4 and FIG. 6 , in some embodiments, the water inlet 32 and the water outlet 33 are both arranged on the outer ring wall 35 .

In this way, the water inlet 32 and the water outlet 33 are easy to manufacture, which can save production costs.

Specifically, the water outlet 33 and the water inlet 32 can be manufactured by punching holes on the outer ring wall 35 . When the water outlet 33 and the water inlet 32 are arranged at the same height, the water outlet 33 and the water inlet 32 can be formed by one punching to save manufacturing cost. At the same time, the water inlet 32 and the water outlet 33 are both arranged on the outer ring wall 35 without affecting the layout of other parts of the motor cooling structure 100 of the spraying equipment 1000, so parts can be easily disassembled.

Referring to FIG. 1 , FIG. 3 and FIG. 4 , in some embodiments, both the water inlet 32 and the water outlet 33 are provided with water pipe connectors 50 .

In this way, the hydraulic pressure and liquid flow of the water inlet 32 and the water outlet 33 can be adjusted.

Specifically, the connection between the water pipe joint 50 and the water inlet 32 and the water outlet 33 can be screwed or keyed. The threaded connection is convenient for disassembly, and the keyed connection can obtain better connection strength. The water pipe joint 50 can be a universal joint to fit different types of water pipes. The water pipe joint 50 can also be customized, so as to obtain the required cooling liquid flow according to the actual demand, so as to meet the cooling requirements of the motors 10 with different powers.

Please refer to FIG. 1 to FIG. 3 and FIG. 5 , in some embodiments, the cross section of the main body 11 is square, and the axial dimension of the main body 11 is larger than the axial dimension of the water cooling element 30 .

In this way, relative rotation between the motor 10 and the water-cooling element 30 is not easy to occur, and the connection strength between the motor 10 and the water-cooling element 30 is guaranteed. failure or a safety accident.

Specifically, the cross-section of the main body 11 can be square, and the cross-section of the outer ring wall 35 of the corresponding water-cooling element 30 can also be square. In the limiting structure, the square cross-section can obtain higher connection strength than the circular cross-section. . Since there is no need for frequent disassembly and assembly between the water-cooling element 30 and the motor 10, the axial dimension of the main body 11 can be set to be larger than the axial dimension of the water-cooling element 30 to form an interference fit connection. Compared with a clearance fit connection and a transition fit connection, Interference fit connections have a higher connection strength.

In one embodiment, the water cooling element 30 may include a cover structure 38, the upper wall of the cover structure 38 is the bottom wall 37 of the water cooling element 30, the cover structure 38 may be sleeved on the bottom of the main body 11 and receive the inner ring wall 34, In order to discharge the cooling liquid below the liquid surface of the water inlet 32 and the water outlet 33 from the water cooling channel 31 .

When the spraying equipment 1000 is shut down, the cooling liquid flowing in from the water inlet 32 is cut off, thereby causing the cooling liquid circulation in the water cooling channel 31 to be interrupted, and the cooling liquid may deposit impurities. If it is not cleaned, the subsequent water cooling channel 31 will be blocked, thereby As a result, the function of the water cooling element 30 fails. Similarly, when the spraying equipment 1000 is in operation for a long time, the cooling liquid may also deposit impurities, which will lead to blockage of the subsequent water-cooling channel 31 if not cleaned, thereby causing the water-cooling element 30 to fail.

Please refer to FIG. 1 , FIG. 6 and FIG. 7 , the cooling system 1100 of the embodiment of the present utility model includes the motor cooling structure 100 of the spraying equipment 1000 of any of the above embodiments.

In this way, the motor cooling structure 100 of the spraying equipment 1000 in the cooling system 1100 provides the heat dissipation function for the motor 10 locally, and the cooling system 1100 provides the overall heat dissipation function for the spraying equipment 1000 .

Specifically, the motor cooling structure 100 of the spraying equipment 1000 is set at the position where the cooling system 1100 passes the motor 10 , or in other words, the cooling system 1100 partially provides heat dissipation for the motor 10 through the motor cooling structure 100 . The spraying equipment 1000 may include multiple motors 10, the cooling system 1100 may include multiple motor cooling structures 100, the motors 10 and the motor cooling structures 100 may correspond one to one, and the multiple motor cooling structures 100 may be arranged in parallel or in series.

Referring to Fig. 4, Fig. 7 and Fig. 8, in some embodiments, the cooling system 1100 also includes a water pump 1101 and a cooling device 1103, the water pump 1101, the cooling device 1103 and the water cooling element 30 are connected in series, and the water pump 1101 is used to supply water to the water inlet 32 Send in cold water, and the cooling device 1103 is used for exchanging heat with the water flowing out from the water outlet 33 .

In this way, the water-cooling element 30 is connected in series with the water pump 1101 and the cooling device 1103 to obtain a larger cooling liquid flow rate, thereby forming a stable cooling liquid circulation between the water-cooling element 30 , the water pump 1101 and the cooling device 1103 .

Specifically, the water pump 1101 and the cooling device 1103 can be arranged on different sides of the water-cooling element 30, or on the same side of the water-cooling element 30, depending on the positions of the water inlet 32 and the water outlet 33 of the water-cooling element 30 and the surrounding environment. Space can be arranged.

The cooling liquid sent by the water pump 1101 enters the water cooling channel 31 and contacts the inner ring wall 34 of the water cooling element 30 , thereby transferring the heat transferred from the main body 11 to the inner ring wall 34 to achieve the purpose of cooling the motor 10 . Part of the cooling liquid flows out from the water outlet 33 , and after circulating through the cooling liquid in the water-cooling channel 31 , the cooling liquid at this time may have a certain temperature. At this time, the cooling device 1103 can exchange heat for the cooling liquid flowing out of the water outlet 33 .

Please refer to FIG. 4 and FIG. 7. In one embodiment, the cooling device 1103 may include a heat exchange tube 1104 and a fan 1105. The cooling liquid passing through the water cooling channel 31 may exchange heat through the heat exchange tube 1104. The cooling liquid is extracted from the cooling system 1100 by the water pump 1101 again, and sent to the water inlet 32 of the water cooling element 30 to form a recirculation, so as to achieve the purpose of cost saving and environmental protection. In addition, the fan 1105 can quickly dissipate the heat of the heat exchange tube 1104 to improve the heat exchange efficiency of the heat exchange tube 1104 .

Referring to FIG. 4 and FIG. 8 , in another embodiment, the cooling device 1103 may include a water tank 1107 and a fan 1105 , and the water tank 1107 contains a large amount of static cooling liquid. The cooling liquid after passing through the water-cooling channel 31 reaches the cooling device 1103 and then flows into the water tank 1107, and exchanges heat with the cooling liquid in the water tank 1107. At the same time, the cooling liquid in the water tank 1107 is further cooled by the fan 1105. The final cooling liquid is extracted from the cooling system 1100 by the water pump 1101 again, and sent to the water inlet 32 of the water cooling element 30 to form a recirculation, so as to achieve the purpose of cost saving and environmental protection.

Please refer to FIG. 1 and FIG. 6 , the spraying equipment 1000 of the embodiment of the present utility model includes the cooling system 1100 of any of the above embodiments.

In this way, under the support of the cooling system 1100 , the spraying equipment 1000 is less prone to overheating failures resulting in downtime, which ensures the normal operation of the spraying equipment 1000 and improves the service life of the spraying equipment 1000 .

Specifically, one spraying equipment 1000 can correspond to one cooling system 1100, and the cooling system 1100 can provide uninterrupted heat dissipation for the motor cooling structure 100 of the spraying equipment 1000 through the water pump 1101, the cooling device 1103 and the water cooling element 30, so as to ensure that the motor 10 operates at at the desired temperature. Further, during the operation of the spraying equipment 1000 , besides the heat generated by the motor 10 , there are other overheating components (such as spray guns, air compressors, etc.), and the cooling system 1100 can provide heat dissipation for the overall structure of the spraying equipment 1000 .

In the description of this specification, descriptions referring to the terms "one embodiment", "certain embodiments", "exemplary embodiments", "example", "specific examples", or "some examples" are meant to be combined with The specific features, structures, materials or features described in the above embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A motor cooling structure for spraying equipment, characterized in that it comprises: a motor comprising a main body and a drive shaft protruding from the main body; an atomizing disc mounted on the drive shaft; and A water-cooling element, the water-cooling element is sleeved on the main body and formed with a water-cooling channel, a water inlet and a water outlet, and the water inlet and the water outlet are both in communication with the water-cooling channel. 2. The motor cooling structure of spraying equipment according to claim 1, characterized in that, the central axis of the water inlet coincides with the central axis of the water outlet. 3 . The motor cooling structure of spraying equipment according to claim 1 , wherein the water-cooling channel is isolated from the main body. 4 . 4. The motor cooling structure of spraying equipment according to claim 3, wherein the water cooling member comprises an inner ring wall, an outer ring wall, a top wall and a bottom wall, and the outer ring wall surrounds the inner ring wall , the top wall connects the inner ring wall and the outer ring wall, the bottom wall connects the inner ring wall and the outer ring wall, the inner ring wall, the outer ring wall, the top ring The wall and the bottom wall jointly enclose the water cooling channel, and the inner ring wall is sleeved on the main body. 5. The motor cooling structure of spraying equipment according to claim 4, characterized in that, the water inlet and the water outlet are both arranged on the outer ring wall. 6. The motor cooling structure of spraying equipment according to claim 1, characterized in that, both the water inlet and the water outlet are provided with water pipe joints. 7 . The motor cooling structure for spraying equipment according to claim 1 , wherein the cross section of the main body is square, and the axial dimension of the main body is larger than the axial dimension of the water cooling element. 8 . 8. A cooling system, characterized by comprising the motor cooling structure of the spraying equipment according to any one of claims 1-7. 9. The cooling system according to claim 8, characterized in that, the cooling system further comprises a water pump and a cooling device, the water pump, the cooling device and the water cooling element are connected in series, and the water pump is used to supply the The water inlet is fed with cold water, and the cooling device is used for exchanging heat with the water flowing out of the water outlet. 10. A spraying equipment, characterized in that it comprises the cooling system according to claim 8 or 9.

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