Spraying assembly, spraying mechanism and movable platform

Abstract

A spraying assembly (100) comprises: a feeding port (10) for guiding a spraying material to be introduced; a spraying member (11) in communication with the feeding port (10) for guiding the spraying material to be discharged; a driving member (12) comprising a first motor (121) and a second motor (122) for driving the spraying member (11); and a fluid chamber (13) having one end in communication with the feeding port (10) and the other end in communication with the spraying member (11); wherein the fluid chamber (13) is further used for dissipating heat of the first motor (121) and the second motor (122) by the spraying material introduced through the feeding port (10).

Description

Spraying assembly, spraying mechanism and movable platform TECHNICAL FIELD

[0001] The present application relates to the technical field of spraying equipment, and particularly relates to a spraying assembly, a spraying mechanism and a movable platform. BACKGROUND

[0002] In the existing spraying assembly, a spraying piece and a driving piece for driving the spraying piece to move are usually included. In the process of driving the spraying piece to perform spraying work by the driving piece, the reliability of the spraying assembly is poor, and the spraying efficiency needs to be improved, which affects the use experience of the spraying assembly.

[0003] CONTENT

[0004] In order to solve the problem of poor use experience of the existing spraying assembly, the present application provides a spraying assembly, a spraying mechanism and a movable platform.

[0005] In a first aspect, the present application provides a spraying assembly, comprising: a feeding port, the feeding port being used for guiding spraying material to enter; a spraying piece, the spraying piece being in communication with the feeding port, so as to guide the spraying material to exit; a driving piece, the driving piece comprising a first motor and a second motor, the first motor and the second motor being used for driving the spraying piece; and a fluid chamber, one end of the fluid chamber being in communication with the feeding port, and the other end of the fluid chamber being in communication with the spraying piece; wherein the fluid chamber is further used for dissipating heat of the first motor and the second motor by the spraying material guided to enter through the feeding port.

[0006] In the present application, the spraying assembly is provided with a fluid chamber, one end of the fluid chamber being in communication with the feeding port, and the other end of the fluid chamber being in communication with the spraying piece. On one hand, the fluid chamber can transport the spraying material guided to enter through the feeding port to the spraying piece to perform spraying work, and on the other hand, the fluid chamber can also dissipate heat of the first motor and the second motor in the driving piece synchronously by the spraying material flowing through the fluid chamber, so as to realize one thing with multiple uses. In this way, the phenomenon of overheating of the first motor and the second motor in the process of driving the spraying piece is alleviated, and the reliability and service life of the spraying assembly are improved.

[0007] In a second aspect, the present application further discloses a spraying assembly, comprising: a feeding port, the feeding port being used for guiding spraying material to enter; a spraying piece, the spraying piece being in communication with the feeding port, so as to guide the spraying material to exit; a driving piece, the driving piece comprising a motor, the motor being used for driving the spraying piece; and a fluid chamber, one end of the fluid chamber being in communication with the feeding port, and the other end of the fluid chamber being in communication with the spraying piece; wherein at least part of the fluid chamber extends along a radial direction of the motor approximately in parallel, so as to dissipate heat of the motor by the spraying material guided to enter through the feeding port.

[0008] In the embodiment of the present application, the spraying assembly is provided with a fluid chamber, one end of the fluid chamber is communicated with the feeding port, and the other end is communicated with the spraying piece. On one hand, the fluid chamber can deliver the spraying material introduced by the feeding port to the spraying piece for spraying operation, and on the other hand, the fluid chamber can also cool the motor in the driving piece through the spraying material flowing therein, thereby realizing one thing with multiple uses. In this way, the overheating phenomenon of the motor during driving of the spraying piece is alleviated, and the reliability and service life of the spraying assembly are improved. Moreover, since at least part of the fluid chamber extends along a direction substantially parallel to the radial direction of the motor, the contact area between the fluid chamber and the motor is large, and accordingly, the heat dissipation contact area is large, and the heat dissipation effect is also better.

[0009] In a third aspect, the embodiment of the present application also discloses a spraying assembly, comprising: a first rotating disc, the first rotating disc comprising a first refining part; and a second rotating disc, the second rotating disc comprising a second refining part; wherein the first rotating disc and the second rotating disc can rotate in an asynchronous manner to perform multi-stage refining on spraying material, one of the first refining part and the second refining part can be accommodated in the space formed by the other one, and the extending directions of the plurality of first refining parts and the plurality of second refining parts are substantially opposite.

[0010] In the embodiment of the present application, the first rotating disc and the second rotating disc in the spraying assembly can rotate in an asynchronous manner to perform multi-stage refining on spraying material, the refining effect is good, and the spraying efficiency is improved; and one of the first refining part and the second refining part can be accommodated in the space formed by the other one, the extending direction of the first refining part and the extending direction of the second refining part are substantially opposite, in this way, the first refining part and the second refining part are buckled together in opposite directions, the upward movement and the drifting of the spraying material are effectively inhibited, the utilization rate of the spraying material is improved, and the spraying efficiency is further improved.

[0011] In a fourth aspect, the embodiment of the present application also provides a spraying mechanism, the spraying mechanism comprising a feeding assembly and any one of the above-mentioned spraying assemblies; wherein the spraying assembly is communicated with the feeding assembly.

[0012] In a fifth aspect, the embodiment of the present application also provides a movable platform, the movable platform comprising: a platform body and the above-mentioned spraying mechanism; wherein the spraying mechanism is installed on the platform body, and is used for spraying material outwardly during movement of the movable platform.

[0013] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clearly understood and implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0015] Fig. 1 schematically shows a structural schematic diagram of a spraying assembly according to an embodiment of the present application;

[0016] Fig. 2 schematically shows an exploded structural schematic diagram of the spraying assembly shown in Fig. 1;

[0017] Fig. 3 schematically shows a cross-sectional structural schematic diagram of the spraying assembly shown in Fig. 1;

[0018] Fig. 4 schematically shows a flow path diagram of the spraying material inside the spraying assembly shown in Fig. 1;

[0019] Fig. 5 schematically shows a top view structural schematic diagram of the spraying assembly according to an embodiment of the present application;

[0020] Fig. 6 schematically shows a side view structural schematic diagram of the spraying assembly shown in Fig. 1;

[0021] Fig. 7 schematically shows a structural schematic diagram of a first rotating disc according to an embodiment of the present application;

[0022] Fig. 8 schematically shows a structural schematic diagram of a second rotating disc according to an embodiment of the present application;

[0023] Fig. 9 schematically shows a structural schematic diagram of a spraying mechanism according to an embodiment of the present application;

[0024] Fig. 10 schematically shows a structural schematic diagram of a movable platform according to an embodiment of the present application.

[0025] 100-spraying assembly, 10-inlet, 11-spraying piece, 111-first rotating disc, 1111-first refining part, 1112-guiding part, 112-second rotating disc, 1121-second refining part, 12-driving piece, 121-first motor, 1211-first stator, 1212-first rotor, 122-second motor, 1221-second stator, 1222-second rotor, 13-fluid chamber, 131-first flow channel, 132-second flow channel, 133-guiding structure, 200-feeding assembly, 1000-movable platform, 1001-spraying mechanism, 1002-platform body. Embodiments

[0026] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0027] The terms "first", "second" in the description and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0028] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0029] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mount", "connected", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The embodiment of the present application specifically discloses a spraying assembly.

[0031] In some optional embodiments of the present application, as shown in FIGS. 1 to 6, the spraying assembly can specifically include: a feeding port 10, which can be used to guide the spraying material to enter; a spraying part 11, which is in communication with the feeding port 10, and is used to guide the spraying material to exit; and a driving part 12, which is used to drive the spraying part 11 to move.

[0032] For example, the spraying material can be solid material, liquid material or solid-liquid mixed material. For example, the solid material includes at least one of solid fertilizer, solid feed, pollen, seed, solid pesticide, fire-fighting powder, etc., and the liquid material includes at least one of water, liquid fertilizer, liquid feed, liquid pesticide, fire-fighting liquid, etc.

[0033] The spraying assembly in the embodiment of the present application can be used or sold as a separate accessory, or can be mounted on a carrier for use or sale. For example, the carrier includes a movable platform, which is used for pesticide spraying, fertilizer spraying, crop sowing, fertilizer sowing, fire-fighting treatment, etc. The movable platform can include an aircraft and a ground movable platform (vehicle, etc.), and the aircraft can include a manned aircraft and an unmanned aircraft, etc. The unmanned aircraft includes a rotor type unmanned aircraft, such as a four-rotor unmanned aircraft, a six-rotor unmanned aircraft, an eight-rotor unmanned aircraft, or a fixed-wing unmanned aircraft, or a combination of a rotor type unmanned aircraft and a fixed-wing unmanned aircraft.

[0034] During use of the spraying assembly, continuous operation of the driving part will generate a large amount of heat, which will accumulate in the spraying assembly. If the heat cannot be quickly dissipated, it will seriously damage the performance of the driving part, cause poor reliability, and affect the service life of the spraying assembly.

[0035] Based on this, in some embodiments, the driving member 12 further comprises a first motor 121 and a second motor 122, which can be used to drive the spraying member 11; and a fluid chamber 13, one end of which is in communication with the feeding port 10, and the other end is in communication with the spraying member 11; wherein the fluid chamber 13 can also be used to cool the first motor 121 and the second motor 122 by the spraying material introduced through the feeding port 10.

[0036] In this way, the spraying assembly is provided with the fluid chamber 13, one end of which is in communication with the feeding port 10, and the other end is in communication with the spraying member 11. The fluid chamber 13 can on the one hand transport the spraying material introduced through the feeding port 10 to the spraying member 11 for spraying operation, and on the other hand can also cool the first motor 121 and the second motor 122 in the driving member 12 synchronously by the spraying material flowing through it, realizing one thing with multiple uses. The phenomenon of overheating of the first motor 121 and the second motor 122 in the process of driving the spraying member is effectively alleviated, and the reliability and service life of the spraying assembly are improved.

[0037] In some embodiments, as shown in FIGS. 1-6, the driving member 12 can include a motor (e.g., the first motor 121 or the second motor 122), which can be used to drive the spraying member 11; and a fluid chamber 13, one end of which is in communication with the feeding port 10, and the other end is in communication with the spraying member 11; wherein at least part of the fluid chamber 13 extends along a direction substantially parallel to the radial direction of the motor, so as to cool the motor by the spraying material introduced through the feeding port 10.

[0038] In this way, the spraying assembly is provided with the fluid chamber 13, one end of which is in communication with the feeding port 10, and the other end is in communication with the spraying member 11. The fluid chamber 13 can on the one hand transport the spraying material introduced through the feeding port 10 to the spraying member 11 for spraying operation, and on the other hand can also cool the first motor 121 and the second motor 122 in the driving member 12 synchronously by the spraying material flowing through it, realizing one thing with multiple uses. The phenomenon of overheating of the first motor 121 and the second motor 122 in the process of driving the spraying member is effectively alleviated, and the reliability and service life of the spraying assembly are improved. Moreover, since at least part of the fluid chamber 13 extends along a direction substantially parallel to the radial direction of the motor, the contact area between the fluid chamber and the motor is larger, and accordingly, the heat dissipation contact area is larger, and the heat dissipation effect is also better.

[0039] In some optional embodiments of the present application, the fluid chamber 13 can be arranged as an independent chamber, and close to the first motor 121 and / or the second motor 122. Alternatively, the fluid chamber 13 can also be formed in the housing of the first motor 121, or formed in the housing of the second motor 122, or formed in the housing of the first motor 121 and the second motor 122. The embodiments of the present application do not make specific limitations on the arrangement of the fluid chamber 13.

[0040] In some embodiments, as shown in FIG. 1 and FIG. 3, the spraying member 11 can include a first rotating disc 111 and a second rotating disc 112, to refine the spraying material introduced into the feeding port 10 through the rotation of the first rotating disc 111 and the second rotating disc 112, and to guide the refined spraying material out of the spraying assembly.

[0041] In some embodiments, the first motor 121 is in driving connection with the first rotating disc 111, to drive the first rotating disc 111 to rotate through the first motor 121; and / or, the second motor 122 is in driving connection with the second rotating disc 112, to drive the second rotating disc 112 to rotate through the second motor 122, so that the independent driving of the first rotating disc 111 and the second rotating disc 112 can be realized. Different driving sources are used for different rotating discs, so that the independent rotation speed adjustment of different rotating discs can be realized, for example, the first rotating disc 111 and the second rotating disc 112 can be driven to rotate asynchronously. The rotation speed of the first rotating disc 111 can be adjusted by the first motor 121 alone, and the rotation speed of the second rotating disc 112 can be adjusted by the second motor 122 alone, so as to realize the particle size adjustment of the spraying material, and meet different application scenarios.

[0042] In some embodiments, the first rotating disc 111 uses centrifugal force for discharging, and / or the second rotating disc 112 uses centrifugal force for discharging. Specifically, after the spraying material is introduced into the first rotating disc 111 and the second rotating disc 112, a larger centrifugal force is generated by the high-speed rotation of the first rotating disc 111 and the second rotating disc 112, the spraying material is effectively refined and thrown out at high speed under the action of the centrifugal force, and the refining and discharging of the spraying material are realized.

[0043] In some embodiments, the spraying material can be sequentially refined by the multi-stage refining action of the first rotating disc 111 and the second rotating disc 112, and then discharged outward, so as to reduce the particle size of the spraying material and improve the refining effect of the spraying material. For example, the first rotating disc 111 can be in the form of an inner throwing disc, and the second rotating disc 112 can be in the form of an outer rotating cage. The inner throwing disc performs one-stage refining on the spraying material by centrifugation, and the outer rotating cage performs two-stage refining on the one-stage atomized spraying material by impact, so as to achieve a better refining effect.

[0044] Exemplarily, the first rotary disc 111 and the second rotary disc 112 are arranged in up and down along the rotation axis direction of the driving member 11.

[0045] In some embodiments, as shown in FIG. 7, the first rotary disc 111 is provided with a first refining part 1111, which can be used to refine the spraying material received by the first rotary disc 111. In a specific application, after the spraying material introduced by the feeding port 10 falls onto the first rotary disc 111, the first refining part 1111 can refine the spraying material and throw out the refined spraying material during the high-speed rotation of the first rotary disc 111.

[0046] As shown in FIG. 7, the first refining part 1111 is multiple and arranged at intervals along the circumference of the first rotary disc 111. During the high-speed rotation of the first rotary disc 111, the spraying material will be thrown out along the circumferential edge of the first rotary disc 111 under the action of centrifugal force. By arranging multiple first refining parts 1111 at intervals along the circumference of the first rotary disc 111, it is beneficial to the refining effect of the first refining part 1111 on the spraying material emitted in different directions. Further, the multiple first refining parts 1111 are arranged at equal intervals along the circumference of the first rotary disc 111, so that the spraying material emitted in different directions can be uniformly refined, improving the uniformity of the spraying material.

[0047] Exemplarily, as shown in FIG. 7, the first refining part 1111 is multiple and each has a sheet-shaped tooth structure. Since the sheet-shaped tooth structure has a larger contact area with the spraying material and a longer refining path during the refining of the spraying material, the refining effect on the spraying material is also better.

[0048] In some embodiments, as shown in FIG. 7, the first rotary disc 111 is further provided with multiple guide parts 1112, which are distributed radially outward along the central part of the first rotary disc 111. Further, the multiple guide parts 1112 are distributed in a spiral shape along the central part of the first rotary disc 111. After the spraying material falls from the fluid chamber 12 to the central part of the first rotary disc 111, the first guide part 1112 guides the spraying material to the first refining part 1111, avoiding the spraying material to be in disorder, which is beneficial to improve the effective utilization rate of the spraying material and further improve the refining effect of the first refining part 1111 on the spraying material.

[0049] As an example, as shown in FIG. 7, the guide part 1112 can include a rib, which is arranged on the surface of the first rotary disc 111 for receiving the spraying material. In this way, after the first rotary disc 111 receives the spraying material, the rib can guide the spraying material to move along the extension direction of the rib until it is guided to the first refining part 1111, which is convenient for the first refining part 1111 to further refine the spraying material in the form of droplets. The rib can be integrally formed with the first rotary disc 111 or separately configured on the surface of the first rotary disc 111.

[0050] Optionally, the guide portion 1112 can be arranged corresponding to the first refining portion 1111, so that the guide portion 1112 can preliminarily distribute the sprayed material received by the first rotating disc 111 and guide the sprayed material to the corresponding first refining portion 1111, so as to improve the refining effect of the first refining portion 1111 on the sprayed material. Moreover, as shown in FIG. 7, the first refining portion 1111 can be oriented along a direction away from the end of the first rotating disc 111 along the direction of extension of the corresponding guide portion 1112, so that the sprayed material guided by the guide portion 1112 to the first refining portion 1111 can smoothly enter the first refining portion 1111 for refining and be smoothly thrown out of the first rotating disc 111, so as to realize smooth transition of the sprayed material between different components while ensuring that the speed of the sprayed material is not significantly reduced.

[0051] In some embodiments, as shown in FIG. 8, the second rotating disc 112 is provided with a second refining portion 1121, which can be used to further refine the sprayed material refined by the first refining portion 1111, so as to further reduce the particle size of the sprayed material and improve the refining effect on the sprayed material. Through multi-stage refining, the fineness and uniformity of the sprayed material are further improved.

[0052] In some embodiments, after part of the sprayed material is emitted from the first refining portion 1111, the sprayed material changes the motion trajectory to move towards the lower side, the obliquely lower side or the second refining portion 1121 due to the blocking effect of the second rotating disc 112, so that the material refined through multiple stages can be sprayed out of the second rotating disc 112 towards the lower side, the obliquely lower side or the first refining portion 1111.

[0053] In this way, on the one hand, the utilization rate of the sprayed material can be improved and waste can be avoided, so that the sprayed material moves towards the lower side, the obliquely lower side or the second refining portion 1121, and can be better emitted towards the desired spraying direction. On the other hand, in the case that the sprayed material is sprayed upwards or obliquely upwards, the sprayed material may, under the action of gravity, partially flow back to the spraying member 11 and cause contamination. In the case that the sprayed material contains corrosive substances, the backflow of the sprayed material may even corrode the spraying member 11 and reduce the service life of the entire spraying assembly.

[0054] In some embodiments, the first refining portion 1111 is accommodated in the space formed by the second refining portion 1121, so that after the first refining portion 1111 preliminarily refines the sprayed material and throws it out, the sprayed material preliminarily refined by the first refining portion 1111 can impact on the second refining portion 1121 and be further refined by the second refining portion 1121. In this way, the refining efficiency of the sprayed material can be improved.

[0055] The first rotating disc 111 shown in FIG. 7 can specifically include a first refining portion 1111, and the second rotating disc 112 shown in FIG. 8 can specifically include a second refining portion 1121. The first rotating disc 111 and the second rotating disc 112 can rotate in an asynchronous manner to perform multi-stage refining on the sprayed material. The first refining portion 1111 is accommodated in a space formed by the second refining portion 1121. The extending directions of the plurality of first refining portions 1111 and the extending directions of the plurality of second refining portions 1121 are substantially opposite. For example, when the first rotating disc 111 and the second rotating disc 112 are both circular discs, the diameter of the second rotating disc 112 is greater than that of the first rotating disc 111. Considering the vibration during the operation of the rotating disc, the clearance during assembly, and the deformation caused by the moment of inertia, the diameter of the first rotating disc 111 can be between 75% and 95% of the diameter of the second rotating disc 112, for example, 85%.

[0056] In this way, the first rotating disc 111 and the second rotating disc 112 in the spraying assembly can rotate in an asynchronous manner to perform multi-stage refining on the sprayed material, which has a good refining effect and improves the spraying efficiency. One of the first refining portion 1111 and the second refining portion 1121 can be accommodated in a space formed by the other one. The extending directions of the first refining portion 1111 and the second refining portion 1121 are substantially opposite. In this way, the first refining portion 1111 and the second refining portion 1121 are buckled together in opposite directions, which effectively suppresses the upward movement and drifting of the sprayed material, improves the utilization rate of the sprayed material, and further improves the spraying efficiency.

[0057] Optionally, the number of the first refining portion 1111 can be less than the number of the second refining portion 1121. The ratio of the number of the first refining portion 1111 to the number of the second refining portion 1121 is greater than or equal to 0.5 and less than or equal to 0.75. For example, the number of the first refining portion 1111 is 60 teeth, and the number of the second refining portion 1121 is 40 columns. In this way, the sprayed material refined by the first refining portion 1111 can be refined again by a larger number of second refining portions 1121, which is beneficial to obtain smaller droplets.

[0058] Optionally, the first refining portion 1111 extends substantially upward, and the second refining portion 1121 extends substantially downward. Since the surface of the first rotary disc 111 that receives the sprayed material is the upper surface, the first refining portion 1111 is arranged on the upper surface of the first rotary disc 111 and extends substantially upward, so that the first refining portion 1111 can immediately refine the sprayed material after the first rotary disc 111 receives the sprayed material, and the refining efficiency is relatively high. The second refining portion 1121 extends substantially downward, so that the sprayed material refined by the second refining portion 1121 can be sprayed downward, obliquely downward, or the like, to the outside of the first rotary disc 111, thereby avoiding backflow of the sprayed material.

[0059] Optionally, as shown in FIG. 8, the second refining portion 1121 is multiple and arranged at intervals along the circumference of the second rotary disc 112. During high-speed rotation of the second rotary disc 112, the sprayed material will be thrown out along the circumferential edge of the second rotary disc 112 under the action of centrifugal force. By arranging multiple second refining portions 1121 at intervals along the circumference of the first rotary disc 111, the refining effect of the second refining portion 1121 on the sprayed material can be improved.

[0060] For example, the second refining portion 1121 is multiple and each is a columnar tooth structure. The surface volume of the columnar tooth structure is relatively small, which on the one hand has little influence on the ejection of the sprayed material, and on the other hand can effectively prevent the sprayed material from re-agglomerating into large droplets on the surface of the columnar tooth.

[0061] For the arrangement of the fluid chamber 13, in some embodiments of the present application, the fluid chamber 13 is in contact with the first motor 121 and the second motor 122 respectively, so that the sprayed material introduced through the feeding port 10 can be used to cool the first motor 121 and the second motor 122. In a specific application, since the fluid chamber 13 is in contact with the first motor 121 and the second motor 122 respectively, the sprayed material flowing through the fluid chamber 13 can be in sufficient contact with the first motor 121 and the second motor 122, so as to improve the cooling effect of the sprayed material on the first motor 121 and the second motor 122.

[0062] In some embodiments, the fluid chamber 13 is at least partially arranged in the interval region between the first motor 121 and the second motor 122. In this way, the sprayed material entering the fluid chamber 13 can flow to the interval region between the first motor 121 and the second motor 122, and be in sufficient contact with the first motor 121 and the second motor 122, so as to improve the cooling effect on the first motor 121 and the second motor 122.

[0063] In some embodiments, the fluid chamber 13 is in contact with two surfaces of the first motor 121 and the second motor 122 respectively, so that the spraying material in the fluid chamber 13 can be in full contact with the first motor 121 and the second motor 122 at the same time through a relatively short path, and the cooling efficiency of the spraying material for the first motor 121 and the second motor 122 is improved.

[0064] In some embodiments, the first motor 121 and the second motor 122 respectively and independently drive the spraying member 11, which facilitates the independent adjustment of the rotation speed of the spraying member 11 by the first motor 121 and the second motor 122, and has stronger scalability, i.e. the particle size of the spraying material can be adjusted to adapt to different spraying scene requirements.

[0065] For example, the rotation direction of the first motor 121 is opposite to the rotation direction of the second motor 122, and correspondingly, the first motor 121 and the second motor 122 can respectively drive the first rotating disc 111 and the second rotating disc 112 to rotate in opposite directions. In this way, the second rotating disc 112 and the first rotating disc 111 have a relatively large speed difference, and the larger speed difference gives a larger refining energy. Therefore, after the spraying material is thrown off from the first rotating disc 111 and hits the second refining part 1121 of the second rotating disc 112, the larger impact ability due to the larger relative speed difference between the first rotating disc 111 and the second rotating disc 112 is beneficial to obtain smaller droplets, and further improves the refining effect of the spraying material.

[0066] For example, the absolute value of the rotation speed of the second motor 122 is greater than or equal to the absolute value of the rotation speed of the first motor 121, so as to increase the impact energy; optionally, the second motor 122 has a larger contact area with the fluid chamber 13 than the first motor 121.

[0067] Optionally, as shown in FIG. 3, the fluid chamber 13 can include a first flow channel 131, which extends along a direction substantially parallel to the first motor 121 and / or the second motor 122, so that the spraying material in the first flow channel 131 can have a larger contact area with the first motor 121 and / or the second motor 122, so that the spraying material in the first flow channel 131 can fully cool the first motor 121 and / or the second motor 122, and obtain a better heat dissipation effect.

[0068] Optionally, as shown in FIG. 3, the fluid chamber 13 can further include a second flow channel 132, which is in communication with the first flow channel 131. The second flow channel 132 can be used to guide the spraying material in the first flow channel 131 to the spraying member 11, so that the spraying member 11 can refine and spray the spraying material.

[0069] Optionally, as shown in FIG. 3, the second flow channel 132 can be substantially perpendicular to the first flow channel 131, and the second flow channel 132 can extend substantially along the axial direction of the first motor 121 and / or the second motor 122, so that the second flow channel 132 can reach the spraying member 11 with the shortest extension length, and the space occupied by the second flow channel 132 on the first motor 121 and / or the second motor 122 can be reduced, which is conducive to the layout of other components on the first motor 121 and / or the second motor 122. At the same time, the spraying material can also reach the spraying member 11 quickly with the shortest distance for refinement and spraying, which improves the refinement and spraying efficiency of the spraying material.

[0070] As shown in FIG. 4, the spraying material can pass through the feeding port 10, the first flow channel 131, the second flow channel 132 and the spraying member 11 in sequence, and finally be sprayed to the outside of the spraying assembly after being refined by the spraying member 11. The first flow channel 131 can extend substantially along the radial direction of the first motor 121 and / or the second motor 122, so as to increase the contact area with the first motor 121 and / or the second motor 122, and achieve sufficient heat dissipation for the first motor 121 and the second motor 122. The second flow channel 132 can extend substantially along the axial direction of the first motor 121 and / or the second motor 122.

[0071] Optionally, as shown in FIG. 3, the second flow channel 132 is provided with a flow guide structure 133 at the end close to the spraying member 11, and the opening size of the flow guide structure 133 becomes larger as it is closer to the spraying member 11, that is, the flow guide structure 133 can be in a horn shape. In a specific application, the flow guide structure 133 can guide and diffuse the spraying material in the second flow channel 132 to the spraying member 11, so that the spraying material in the second flow channel 132 can fall more uniformly on the spraying member 11, which is conducive to improving the refinement effect of the spraying member 11 on the spraying material.

[0072] Optionally, as shown in FIG. 3, the first motor 121 and the second motor 122 are arranged in an up-down manner, for example, the first motor 121 is located above, and the second motor 122 is located below, so as to realize the compact layout of the first motor 121 and the second motor 122.

[0073] In some embodiments, one of the first motor 121 and the second motor 122 is an outer rotor motor, and the other is an inner rotor motor. Specifically, the outer rotor motor is a motor with a stator inside and a rotor outside, and the inner rotor motor is a motor with a rotor inside and a rotor outside. Both the inner rotor motor and the outer rotor motor are connected to the first turntable 111 or the second turntable 112 through the rotor. In the embodiments of the present application, by setting one of the first motor 121 and the second motor 122 as an outer rotor motor and the other as an inner rotor motor, the first turntable 111 and the second turntable 112 can be arranged in a staggered manner, and a compact layout of the first turntable 111 and the second turntable 112 can be achieved.

[0074] For example, the first motor 121 arranged above is an inner rotor motor, and the second motor 122 arranged below is an outer rotor motor. The rotor inside the inner rotor motor arranged above can pass through the outer rotor motor arranged below and be connected to the first turntable 111, and the rotor outside the outer rotor motor arranged below can be directly connected to the second turntable 112. Generally, the outer rotor motor arranged below can be used to drive the second turntable 112 with a larger diameter, and the inner rotor motor arranged above can be used to drive the first turntable 111 with a smaller diameter. Because the outer rotor of the outer rotor motor has a relatively large volume, if arranged above, the driving connection path with the turntable below is too long, which is not conducive to compact design, and the driving reliability is not easy to guarantee; and the inner rotor of the inner rotor motor has a relatively small volume, so even if arranged above, the relatively small inner rotor can extend to the spray element below, which can ensure the relative compactness and miniaturization of the overall structure. In addition, the second motor 122 arranged below has contact with the second flow channel 132 in addition to the contact with the first flow channel 131, especially the contact area between the stator part of the second motor 122 and the fluid chamber 13 is increased, and because the stator part is more prone to heat accumulation, the heat dissipation of the second motor 122 is more conducive.

[0075] Optionally, the rotation speed value of the outer rotor motor is greater than or equal to the rotation speed value of the inner rotor motor, so that the rotation speed of the second turntable 112 is greater than or equal to the rotation speed of the first turntable 111, so as to achieve a smaller particle size and a larger penetration by the further refinement of the second turntable 112.

[0076] Optionally, the first motor 121 can include a first rotor part 1212 and a first stator part 1211, and the first rotor part 1212 is drivingly connected to the first turntable 111 to drive the first turntable 111 to rotate through the rotation of the first rotor part 1212.

[0077] Optionally, the first stator part 1211 is arranged at the periphery of the first rotor part 1212, and the first rotor part 1212 can rotate relative to the first stator part 1211.

[0078] Optionally, as shown in FIG. 3, the first rotor part 1212 can penetrate the fluid chamber 13 and extend to be in transmission connection with the first turntable 111 to drive the first turntable 111 to rotate. In this way, on the one hand, through the rotation of the first rotor part 1212 in the fluid chamber 13, the sprayed material in the fluid chamber 13 can be further diffused and homogenized, avoiding the local accumulation of the sprayed material introduced by the feeding port 10 in the fluid chamber 13. In this way, not only is it beneficial to improve the heat dissipation effect of the sprayed material on the first motor 121 and the second motor 122, but also it is beneficial to the subsequent refinement and spraying effect of the sprayed material. On the other hand, it is also more conducive to the outward dissipation of heat through liquid agitation.

[0079] Optionally, the surface of the first rotor part 1212 in contact with the fluid chamber 13 is provided with a corrosion-resistant layer to prevent the sprayed material flowing in the fluid chamber 13 from corroding and damaging the first rotor part 1212, so as to improve the service life of the first rotor part 1212.

[0080] For example, the corrosion-resistant layer can be made of rubber, plastic or other corrosion-resistant materials, or can be a corrosion-resistant coating or a corrosion-resistant ceramic layer directly coated or deposited on the surface of the first rotor 1212. The embodiments of the present application do not make specific limitations on the implementation mode of the corrosion-resistant layer.

[0081] Optionally, at least part of the first stator part 1211 is in contact with the fluid chamber 13 to dissipate heat from the first stator part 1211 through the sprayed material flowing in the fluid chamber 13, so as to avoid the phenomenon of overheating of the first stator part 1211, thereby improving the overall life of the first motor 121.

[0082] Optionally, as shown in FIG. 3, the second motor 122 can include a second rotor part 1222 and a second stator part 1221, and the second rotor part 1222 is in transmission connection with the second turntable 112 to drive the second turntable 112 to rotate through the rotation of the second rotor part 1222.

[0083] Optionally, as shown in FIG. 3, the second rotor part 1222 is arranged at the periphery of the second stator part 1221, and since the second turntable 112 is arranged at the periphery of the first turntable 111. By arranging the second rotor part 1222 at the periphery of the second stator part 1221, it is beneficial to directly connect the second rotor part 1222 with the second turntable 112.

[0084] Optionally, at least part of the second stator portion 1221 is in contact with the fluid chamber 13, so that the second stator portion 1221 is cooled by the spraying material flowing in the fluid chamber 13, to avoid overheating of the second stator portion 1221, and to improve the overall service life of the second motor 122.

[0085] In some optional embodiments of the present application, the fluid chamber 13 is detachably connected with the first motor 121, and / or the fluid chamber 13 is detachably connected with the second motor 122, so as to facilitate independent assembly, maintenance or replacement of the first motor 121, the fluid chamber 13 and the second motor 122.

[0086] For example, the detachable connection between the fluid chamber 13 and the first motor 121, and the detachable connection between the fluid chamber 13 and the second motor 122 can be achieved by clamping or fastener connection, and the like. The embodiments of the present application do not make specific limitations on the detachable connection mode.

[0087] In some optional embodiments of the present application, the feeding port 10 can introduce the spraying material along the radial direction of the fluid chamber 13, so as to superimpose radial vortex flow to correspondingly strengthen the diffusion and uniformity of the spraying material in the fluid chamber 13, and to facilitate the spraying material to be quickly and uniformly filled in the fluid chamber 13 to cool the first motor 121 and the second motor 122.

[0088] In some embodiments, the feeding port 10 can introduce the spraying material along the radial direction of the fluid chamber 13, so as to superimpose radial vortex flow to correspondingly strengthen the diffusion and uniformity of the spraying material in the fluid chamber 13, and to facilitate the spraying material to be quickly and uniformly filled in the fluid chamber 13 to cool the first motor 121 and the second motor 122.

[0089] The present application also discloses a spraying assembly, which specifically can include: a first rotating disc 111 as shown in FIG. 7, the first rotating disc 111 specifically can include a first refining portion 1111; and a second rotating disc 112 as shown in FIG. 8, the second rotating disc 112 specifically can include a second refining portion 1121; wherein the first rotating disc 111 and the second rotating disc 112 can rotate in different steps to perform multi-stage refining on the spraying material, one of the first refining portion 1111 and the second refining portion 1121 can be accommodated in the space formed by the other one, and the extension directions of the plurality of first refining portions 1111 and the plurality of second refining portions 1121 are substantially opposite.

[0090] In the embodiment of the present application, the first rotating disc 111 and the second rotating disc 112 in the spraying assembly can rotate in an asynchronous manner to perform multi-stage refinement on the spraying material, the refinement effect is good, and the spraying efficiency is improved; one of the first refinement part 1111 and the second refinement part 1121 can be accommodated in the space formed by the other one, the extension direction of the first refinement part 1111 and the extension direction of the second refinement part 1121 are substantially opposite, in this way, the first refinement part 1111 and the second refinement part 1121 are buckled together in a manner of facing opposite directions, the upward rising and drifting of the spraying material are effectively inhibited, the utilization rate of the spraying material is improved, and the spraying efficiency is further improved.

[0091] It should be noted that the spraying assembly and its constituent parts in the embodiment described in the present embodiment and the structures and principles of the spraying assembly and its constituent parts in all the foregoing embodiments are the same or similar, and one or more embodiments of the foregoing embodiments can be applied to the spraying assembly in the present embodiment, which will not be described herein.

[0092] As a specific application scenario example, taking the spraying material as a liquid for example:

[0093] The spraying assembly in the embodiment of the present application realizes two-stage refinement by using two motors rotating in opposite directions, including one-stage centrifugal refinement and two-stage impact refinement. The guide part on the inner throwing disc is beneficial to the decomposition of the liquid into droplets under the action of centrifugal force when the liquid rotates on the throwing disc, and the high tangential speed of the inner throwing disc is retained. Since the turning direction of the outer rotating cage is opposite to that of the inner throwing disc, the two have a large speed difference, and the impact column at the edge of the outer rotating cage can scatter the mist droplets and immediately escape into the air to form water mist with extremely fine particle size, achieving excellent refinement effect. And by adjusting the rotating speed of the inner and outer discs, various particle sizes from coarse to fine can be realized.

[0094] The two motors can be simultaneously liquid-cooled and heat-dissipated. The liquid enters the fluid chamber 13 between the two motors from the inlet, and first fills the cavity of the fluid chamber 13. The surface of the fluid chamber 13 is in contact with the lower surface of the upper rotor motor and the upper surface of the stator of the lower rotor motor, which can simultaneously meet the heat-dissipation requirements of the two motors, is beneficial to the overall service life, and the lower motor with higher rotating speed has a larger heat-dissipation area, and the overall layout is more reasonable.

[0095] The columnar tooth structure on the outer rotating cage for hitting liquid droplets is arranged downward, and the mist droplets released by the outer rotating cage have more downward speed, avoiding the risk of dirt and corrosion caused by the mist droplets diffusing in the spraying assembly.

[0096] The application further discloses a spraying mechanism 1001, which comprises the feeding assembly 200 and the spraying assembly 100 in any of the above-mentioned embodiments.

[0097] For example, the feeding assembly 200 can specifically comprise a storage device capable of storing spraying material, a pipeline in communication with the storage device, a pumping device for conveying the spraying material from the storage device into the spraying assembly, and the like, and the spraying assembly 100 can be connected with the storage device through the pipeline.

[0098] It should be noted that the spraying assembly 100 in the embodiment of the application has the same technical effects as the spraying assembly 100 in the above-mentioned embodiments, and details are not repeated here. The parts not mentioned in the embodiment of the application can refer to the related introduction of the foregoing embodiments, and details are not repeated here.

[0099] The embodiment of the application further discloses a movable platform 1000, which comprises a platform body 1002 and the spraying mechanism 1001 in the above-mentioned embodiments; wherein the spraying mechanism 1001 is installed on the platform body 1002, and is used for spraying material outwardly during movement of the movable platform 1000.

[0100] For example, the movable platform 1000 can specifically comprise an aircraft, a vehicle and the like, and the like, and the movable platform 1000 can move in the air and / or on the road. The embodiment of the application does not limit the specific content of the movable platform 1000.

[0101] It should be noted that the spraying mechanism 1001 in the embodiment of the application has the same technical effects as the spraying mechanism 1001 in the above-mentioned embodiments, and details are not repeated here. The parts not mentioned in the embodiment of the application can refer to the related introduction of the foregoing embodiments, and details are not repeated here.

[0102] The device embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. According to actual needs, some or all of the modules can be selected to achieve the purpose of the embodiment of the application. Those skilled in the art can understand and implement without creative labor.

[0103] As used in this description, the terms "one embodiment", "an embodiment” or "one or more embodiments” mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. The appearances of the phrase "in one embodiment” in various places in this description are not necessarily all referring to the same embodiment.

[0104] In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application can be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

[0105] In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps other than those listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of both hardware and software, and any combination thereof. In a unitary claim, several devices, apparatuses or means can be listed, comprising means for carrying out a certain task. The use of the term "first", "second", "third" etc. does not limit the number of means. These terms can be construed to either refer to a certain number of means or to refer to the first, second and third means whatsoever. The use of the terms "first", "second", "third" and the like in the description is only to distinguish one claim from another claim, and is not to be construed as limiting the scope of each claim to the features that are described in relation to that claim.

[0106] Finally, it should be noted that the above-mentioned embodiments illustrate rather than limit the application, since the application is amenable to many changes without departing from the scope of the following claims, the scope of which is defined by the national laws under the patent law of the various countries.

Claims

1. A spray assembly characterized by, The application relates to a spraying device. The spraying device comprises: a feeding port for feeding spraying material; a spraying member in communication with the feeding port for discharging the spraying material; a driving member comprising a first motor and a second motor for driving the spraying member; and a fluid chamber in communication with the feeding port at one end and in communication with the spraying member at the other end; 2. A spray assembly characterized in that, wherein the fluid chamber is further used for dissipating heat of the first motor and the second motor by the spraying material fed through the feeding port. The spraying device comprises: a feeding port for feeding spraying material; a spraying member in communication with the feeding port for discharging the spraying material; a driving member comprising a motor for driving the spraying member; and a fluid chamber in communication with the feeding port at one end and in communication with the spraying member at the other end; wherein at least part of the fluid chamber extends along a direction substantially parallel to a radial direction of the motor so as to dissipate heat of the motor by the spraying material fed through the feeding port.

3. The spray assembly of claim 1 or 2, wherein, The spraying member comprises a first rotating disc and a second rotating disc.

4. The spray assembly of claim 3, wherein, The first motor is in driving connection with the first rotating disc for driving the first rotating disc to rotate; and / or the second motor is in driving connection with the second rotating disc for driving the second rotating disc to rotate.

5. The spray assembly of claim 3, wherein, The first rotating disc discharges the spraying material by centrifugal force; and / or the second rotating disc discharges the spraying material by centrifugal force.

6. The spray assembly of claim 3, wherein, The spraying material is discharged outwardly after being subjected to multi-stage refining by the first rotating disc and the second rotating disc in sequence.

7. The spray assembly of claim 3, wherein, The first rotating disc is provided with a first refining part for refining the spraying material received by the first rotating disc.

8. The spray assembly of claim 7, wherein, The first refining part is in plurality and is arranged along a circumferential direction of the first rotating disc; and / or the first refining part is in plurality and each is in a sheet-shaped tooth structure.

9. The spray assembly of claim 7, wherein, The first rotating disc is further provided with a plurality of guide parts which are distributed radially outwardly along a central part of the first rotating disc.

10. The spray assembly of claim 9, wherein, The guide part comprises a rib which is arranged on a surface of the spraying material received by the first rotating disc.

11. The spray assembly of claim 9, wherein, The first refining part is oriented along a direction of extension of the corresponding guide part away from a terminal end of the first rotating disc.

12. The spray assembly of claim 7, wherein, The second rotating disc is provided with a second refining part for refining the spraying material refined by the first refining part again.

13. The spray assembly of claim 12, wherein, After being discharged from the first refining part, part of the spraying material changes a movement track to move towards a lower direction, an oblique lower direction or the second refining part by a blocking action of the second rotating disc.

14. The spray assembly of claim 12, wherein, The first refining part is accommodated in a space formed by the second refining part.

15. The spray assembly of claim 12, wherein, A ratio of a number of the first refining parts to a number of the second refining parts ranges from greater than or equal to 0.5 to less than or equal to 0.

75.

16. The spray assembly of claim 12, wherein, The first refining part extends substantially upwards, and the second refining part extends substantially downwards.

17. The spray assembly of claim 12, wherein, The second refining part is in plurality and is arranged along a circumferential direction of the second rotating disc; and / or the second refining part is in plurality and each is in a columnar tooth structure.

18. The spraying assembly of claim 2, wherein the motor comprises a first motor and a second motor.

19. The spray assembly of claim 1 or 18, wherein, The fluid chamber is in contact with the first motor and the second motor respectively to dissipate heat from the first motor and the second motor by the spraying material introduced through the feeding port.

20. The spray assembly of claim 1 or 18, wherein, The fluid chamber is at least partially located in a space between the first motor and the second motor.

21. The spray assembly of claim 20, wherein, The fluid chamber is in contact with two surfaces of the first motor and the second motor respectively.

22. The spray assembly of claim 1 or 18, wherein, The first motor and the second motor independently drive the spraying member respectively.

23. The spray assembly of claim 22, wherein, The first motor and the second motor rotate in opposite directions.

24. The spray assembly of claim 1 or 18, wherein, The fluid chamber comprises a first flow channel extending substantially radially relative to the first motor and / or the second motor.

25. The spray assembly of claim 24, wherein, The fluid chamber further comprises a second flow channel in communication with the first flow channel.

26. The spray assembly of claim 25, wherein, The second flow channel is substantially perpendicular to the first flow channel.

27. The spray assembly of claim 25, wherein, The spraying material sequentially passes through the feeding port, the first flow channel, the second flow channel and the spraying member.

28. The spray assembly of claim 27, wherein, The second flow channel is provided with a flow guide structure at an end close to the spraying member, and the opening size of the flow guide structure increases as it gets closer to the spraying member.

29. The spray assembly of claim 1 or 18, wherein, The first motor and the second motor are arranged in a top-bottom manner.

30. The spray assembly of claim 1 or 18, wherein, One of the first motor and the second motor is an external rotor motor, and the other is an internal rotor motor.

31. The spray assembly of claim 30, wherein, The motor arranged at the lower side of the first motor and the second motor is an external rotor motor, and the motor arranged at the upper side is an internal rotor motor.

32. The spray assembly of claim 31, wherein, The rotational speed of the external rotor motor is greater than or equal to the rotational speed of the internal rotor motor.

33. The spray assembly of claim 30, wherein, The first motor comprises a first rotor portion and a first stator portion, the first rotor portion is drivingly connected to the first rotating disc, and the first stator portion is located at the periphery of the first rotor portion.

34. The spray assembly of claim 33, wherein, The first rotor portion penetrates the fluid chamber and extends to be drivingly connected to the first rotating disc.

35. The spray assembly of claim 34, wherein, The surface of the first rotor portion in contact with the fluid chamber is provided with a corrosion-resistant layer.

36. The spray assembly of claim 33, wherein, At least part of the first stator portion is in contact with the fluid chamber.

37. The spray assembly of claim 30, wherein, The second motor comprises a second rotor portion and a second stator portion, the second rotor portion is drivingly connected to the second rotating disc, and the second stator portion is located at the periphery of the second rotor portion.

38. The spray assembly of claim 37, wherein, At least part of the second stator portion is in contact with the fluid chamber.

39. The spray assembly of claim 1 or 18, wherein, The fluid chamber is detachably connected to the first motor and / or the second motor.

40. The spraying assembly of claim 1 or 18, wherein the second motor has a greater contact area with the fluid chamber 13 than the first motor.

41. The spray assembly of claim 1 or 2, wherein, The feeding port introduces the spraying material along the radial direction of the fluid chamber.

42. A spray assembly comprising: Comprise: The first rotating disc comprises a first refining portion. And The second rotating disc comprises a second refining portion. The first rotary disc and the second rotary disc can rotate in an asynchronous manner to perform multi-stage refinement on the spraying material, one of the first refining part and the second refining part can be accommodated in the space formed by the other one, and the extending direction of the first refining part and the extending direction of the second refining part are substantially opposite.

43. The spray assembly of claim 42, wherein, The spraying assembly further comprises a driving member for driving the first rotary disc and / or the second rotary disc to rotate.

44. The spray assembly of claim 43, wherein, The driving member comprises a first motor in transmission connection with the first rotary disc for driving the first rotary disc to rotate, and / or the driving member comprises a second motor in transmission connection with the second rotary disc for driving the second rotary disc to rotate.

45. The spray assembly of claim 44, wherein, The first motor and the second motor rotate in an asynchronous manner.

46. The spray assembly of claim 44, wherein, The rotating direction of the first motor is opposite to the rotating direction of the second motor.

47. The spray assembly of claim 44, wherein, The spraying assembly further comprises a fluid chamber in communication with the first rotary disc and the second rotary disc for guiding the spraying material into the first rotary disc and the second rotary disc.

48. The spray assembly of claim 47, wherein, The spraying assembly further comprises a feeding port for guiding the spraying material along the radial direction of the fluid chamber.

49. The spray assembly of claim 47, wherein, The fluid chamber is further used for dissipating heat of the first motor and / or the second motor by the spraying material.

50. The spray assembly of claim 49, wherein, The fluid chamber is in contact with the first motor and / or the second motor.

51. The spray assembly of claim 49, wherein, The fluid chamber is at least partially arranged in the spacing region between the first motor and the second motor.

52. The spray assembly of claim 49, wherein, The fluid chamber is in contact with the two surfaces of the first motor and the second motor which are opposite to each other.

53. The spray assembly of claim 49, wherein, The fluid chamber comprises a first flow channel extending along the radial direction substantially parallel to the first motor and / or the second motor.

54. The spray assembly of claim 53, wherein, The fluid chamber further comprises a second flow channel in communication with the first flow channel.

55. The spray assembly of claim 54, wherein, The second flow channel is substantially perpendicular to the first flow channel.

56. The spray assembly of claim 54, wherein, The spraying material sequentially passes through the feeding port, the first flow channel, the second flow channel and the spraying member.

57. The spray assembly of claim 56, wherein, The second flow channel is provided with a flow guiding structure near the end of the spraying member, and the opening size of the flow guiding structure is larger as it is closer to the spraying member.

58. The spray assembly of claim 44, wherein, The first motor and the second motor are arranged in a top-down manner.

59. The spray assembly of claim 44, wherein, One of the first motor and the second motor is an outer rotor motor, and the other one is an inner rotor motor.

60. The spray assembly of claim 44, wherein, The motor arranged at the lower side among the first motor and the second motor is an outer rotor motor, and the motor arranged at the upper side is an inner rotor motor.

61. The spray assembly of claim 60, wherein, The rotating speed value of the outer rotor motor is greater than or equal to the rotating speed value of the inner rotor motor.

62. The spray assembly of claim 47, wherein, The fluid chamber is detachably connected with the first motor and / or the second motor.

63. The spray assembly of claim 42, wherein, The first rotary disc and / or the second rotary disc uses centrifugal force for discharging.

64. The spray assembly of claim 42, wherein, The spraying material is sequentially subjected to the multi-stage refinement of the first refining part and the second refining part and then discharged outward.

65. The spray assembly of claim 64, wherein, After a part of the spraying material is discharged from the first refining part, the movement trajectory is changed by the blocking action of the second rotary disc to move towards the lower side, the oblique lower side or the second refining part.

66. The spray assembly of claim 42, wherein, The first refining part is accommodated in a space formed by the second refining part.

67. The spray assembly of claim 42, wherein, The extending direction of the first refining part is generally downward, and the extending direction of the second refining part is generally downward.

68. The spray assembly of claim 42, wherein, The first refining part is multiple and is arranged along the circumference of the first rotating disc.

69. The spray assembly of claim 68, wherein, The first refining part is arranged in equal intervals along the circumference.

70. The spray assembly of claim 68, wherein, The first refining part is a sheet-shaped tooth structure.

71. The spray assembly of claim 68, wherein, The first rotating disc is further provided with multiple guide parts, and the multiple guide parts are distributed radially outward along the center part of the first rotating disc.

72. The spray assembly of claim 71, wherein, The guide part comprises a rib, and the rib is arranged on the surface of the first rotating disc for receiving the spraying material.

73. The spray assembly of claim 71, wherein, The extending direction of the first refining part is generally oriented away from the end of the first rotating disc along the corresponding guide part.

74. The spray assembly of claim 68, wherein, The second refining part is multiple and is arranged along the circumference of the second rotating disc.

75. The spray assembly of claim 74, wherein, The second refining part is arranged in equal intervals along the circumference.

76. The spray assembly of claim 74, wherein, The second refining part is a columnar tooth structure.

77. The spray assembly of claim 42, wherein, The ratio of the number of the first refining part to the number of the second refining part ranges from greater than or equal to 0.5 to less than or equal to 0.

75.

78. A spraying mechanism characterized by, The spraying mechanism comprises a material conveying assembly and the spraying assembly according to any one of claims 1-77; wherein the spraying assembly is in communication with the material conveying assembly.

79. A movable platform, characterized by The movable platform comprises a platform body and the spraying mechanism according to claim 78; wherein the spraying mechanism is mounted on the platform body for spraying material outward during the movement of the movable platform.

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