Spraying motor

Abstract

The utility model discloses a spraying motor, which comprises a centrifugal projecting disc assembly and a driving piece for performing transmission output on the centrifugal projecting disc assembly, a liquid supply assembly is installed on the centrifugal throwing disc assembly, and a side wall wrapping structure for heat dissipation of the driving part is formed in the liquid supply assembly. According to the utility model, firstly, fluid flows in the annular channel, the contact area between water flow and the motor shell is increased, so that the heat of the motor shell is quickly taken away, and the high-power continuous operation of the motor assembly is benefited, secondly, one end, extending out of the motor output shaft, of the motor assembly is directly attached to the bottom end face of the liquid supply shell sleeve; a third sealing structure, a fourth sealing structure and a heightened shaft cavity are arranged in a matched mode, the protection effect on the motor assembly is achieved, finally, a hole groove is formed in the side, back on to the motor shell, of the liquid supply shell sleeve, a screw hole of the motor shell is formed in the end plane of the motor shell, machining of the motor shell can be simplified, and machining efficiency is improved. And meanwhile, the purpose of simplifying installation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying motors, in particular to a spraying motor. Background Art

[0002] Spraying motors generally refer to electric motors used to drive spraying systems, which are widely used in agriculture (such as irrigation and spraying pesticides), gardening, industrial cleaning and other occasions where liquid spraying is required.

[0003] Currently, the spraying devices of plant protection drones mostly adopt the centrifugal spraying principle. The motor speed used in the centrifugal nozzle is mostly above 10,000 rpm. The motor needs to pass through water for operation and has a high operating power, which causes severe heating of the motor and the risk of water ingress.

[0004] In the prior art, according to patent application number: CN216727759U, a centrifugal nozzle, a spraying system and a plant protection drone are disclosed. The application provides a force for the movement and resetting of the magnetic core by setting a magnet assembly, which can solve the problem of liquid dripping when the centrifugal nozzle stops working. In order to meet the heat dissipation of the motor during operation, one end of the motor extending out of the output shaft is embedded in the liquid cavity, so that the water entering the liquid cavity can take away the heat of the motor during operation through contact with the motor end cover.

[0005] However, since the motor speed used in the centrifugal nozzle is mostly above 10,000 rpm, the motor needs to cooperate with the centrifugal nozzle to perform high-power operations. The existing technology only uses a small range of flow contact between the water flow and the motor end cover, and it is difficult to quickly take away the heat of the motor when it is running at high power. In addition, since one end of the motor extending out of the output shaft is directly immersed in the liquid cavity, when the motor is operated in water for a long time, there is a risk of water penetrating into the motor through the connection gap of the output shaft.

[0006] Based on the above drawbacks, a spraying motor is provided. Utility Model Content

[0007] The purpose of the utility model is to provide a spraying motor in order to solve the above problems.

[0008] In order to achieve the above object, the utility model adopts the following technical solutions: a spraying motor, comprising a centrifugal disk assembly and a drive member for transmitting the output of the centrifugal disk assembly;

[0009] A liquid supply assembly is installed on the centrifugal disk assembly, and a side wall covering structure for heat dissipation of the driving component is formed in the liquid supply assembly.

[0010] Preferably, the driving component is composed of a motor assembly and an electric adjustment mechanism installed on the top of the motor assembly, and the electric adjustment mechanism performs speed control on the motor assembly.

[0011] Preferably, the motor assembly comprises a motor housing, and a motor output shaft assembled in the motor housing for outputting transmission to the centrifugal disk assembly.

[0012] Preferably, a first sealing structure is provided at the connection between the rear end of the motor housing and the electric adjustment mechanism, and a fourth sealing structure is provided at the connection between the motor housing and the motor output shaft.

[0013] Preferably, the liquid supply assembly includes a liquid supply shell, a liquid inlet formed on the side of the liquid supply shell and connected to an external pipeline, and a liquid outlet formed on the bottom of the liquid supply shell and connected to a centrifugal disk assembly.

[0014] Preferably, a second sealing structure is provided at a connection between the liquid supply shell and the side wall of the motor housing, and a third sealing structure is provided at a connection between the liquid supply shell and the front end of the motor housing.

[0015] Preferably, the first sealing structure, the second sealing structure and the third sealing structure are rubber rings, the fourth sealing structure is made of oil sealing material, and a shaft cavity for the motor output shaft to penetrate is formed in the liquid supply housing.

[0016] Preferably, the side wall covering structure is a cavity formed in the liquid supply shell to fit the motor housing. After water enters from the liquid inlet, it contacts the side wall of the motor housing through the cavity to remove heat and enters the centrifugal disk assembly through the liquid outlet.

[0017] Preferably, the side wall of the motor housing is formed with an annular rib.

[0018] Preferably, the side wall of the motor housing is formed with spiral ribs.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0020] 1. In the present application, the fluid entering the liquid supply shell through the liquid inlet flows in the annular channel formed by the inner wall of the liquid supply shell and the outer wall of the motor housing, thereby increasing the contact area between the water flow and the motor housing, thereby quickly taking away the heat of the motor housing, which is beneficial to the high-power continuous operation of the motor assembly.

[0021] 2. In the present application, one end of the motor output shaft extending outward from the motor assembly is directly fitted with the bottom end surface of the liquid supply shell, and through the coordinated arrangement of the third sealing structure, the fourth sealing structure and the elevated shaft cavity, it can effectively prevent the fluid from penetrating into the motor assembly through the connection of the motor output shaft, thereby achieving a protective effect on the motor assembly.

[0022] 3. In this application, by opening a hole groove on the side of the liquid supply housing sleeve facing away from the motor housing, the screw hole of the motor housing is opened on the end plane of the motor housing. Compared with the traditional method of punching holes on the arc-shaped side wall of the motor housing, it can simplify the processing of the motor housing and achieve the purpose of simplifying the installation at the same time. Description of the Drawings

[0023] Figure 1 Shows a front view of the spraying motor provided according to an embodiment of the present invention;

[0024] Figure 2 Shows a schematic cross-sectional view taken along line A-A of the spraying motor provided according to an embodiment of the present invention;

[0025] Figure 3 Shows a schematic cross-sectional view taken along line B-B of the spraying motor provided according to an embodiment of the present invention;

[0026] Figure 4 Shows a three-dimensional schematic diagram of the spraying motor provided according to an embodiment of the present invention.

[0027] Legend Explanation:

[0028] 1. Motor assembly; 101. Electronic speed control mechanism; 102. Motor housing; 103. Motor output shaft;

[0029] 2. Liquid supply assembly; 201. Liquid supply housing sleeve; 202. Liquid inlet; 203. Liquid outlet; 204. Shaft cavity; 205. First sealing structure; 206. Second sealing structure; 207. Third sealing structure; 208. Fourth sealing structure;

[0030] 3. Centrifugal disc assembly. Detailed Embodiment

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0032] Please refer to Figures 1-4 , the present invention provides a technical solution: a spraying motor, including a centrifugal disc assembly 3 and a driving member that drives and outputs the centrifugal disc assembly 3;

[0033] A liquid supply assembly 2 is installed on the centrifugal disc assembly 3, and a side wall covering structure for dissipating heat from the driving member is formed in the liquid supply assembly 2.

[0034] The liquid supply component 2 is used to introduce an external water source into the centrifugal disc assembly 3 to achieve centrifugal spraying of water.

[0035] The centrifugal disc assembly 3 is a prior art. By a rotating disc or blade at high speed to generate centrifugal force, the liquid introduced from the liquid supply component 2 is thrown out from the center to the outside, forming fine droplets. The driving member is used to provide power for the rotating disc or blade rotating at high speed in the centrifugal disc assembly 3.

[0036] By covering the side wall of the driving member, the liquid supply component 2 enables the fluid introduced into its interior to flow in contact with the side wall of the driving member, thereby quickly removing the heat of the driving member, which is beneficial to the continuous high-power operation of the driving member.

[0037] Specifically, as Figure 1 、 Figure 2 and Figure 3 shown, the driving member is composed of a motor assembly 1 and an electronic speed control mechanism 101 installed on the top of the motor assembly 1. The electronic speed control mechanism 101 performs speed control on the motor assembly 1.

[0038] The electronic speed control mechanism 101 is an electronic speed controller of the prior art, which is an electronic device used to control the operation of the motor, including its speed, direction and torque. The main function of the motor electronic speed control is to convert electrical energy into an electrical signal suitable for the operation of the motor, so as to achieve precise control of the motor.

[0039] The motor assembly 1 includes a motor housing 102 and a motor output shaft 103 assembled in the motor housing 102 to output transmission to the centrifugal disc assembly 3.

[0040] The motor assembly 1 is a prior art. Its interior is mainly composed of a wound stator and a rotor opposite thereto. The rotor of the motor is the rotating part of the motor, responsible for converting the electromagnetic energy of the motor into mechanical motion, and the motor output shaft 103 is a transmission component of the motor, used to transmit the rotational motion of the rotor to an external mechanical system, thereby driving other devices or mechanical components.

[0041] A first sealing structure 205 is provided at the connection between the rear end of the motor housing 102 and the electronic speed control mechanism 101, and a fourth sealing structure 208 is provided at the connection between the motor housing 102 and the motor output shaft 103.

[0042] The first sealing structure 205 provides a sealing effect at the connection and fitting between the rear end of the motor housing 102 and the electronic speed control mechanism 101, to prevent water from entering the electronic speed control mechanism 101 through its connection, causing damage to the electronic speed control mechanism 101.

[0043] The fourth sealing structure 208 is arranged inside the motor housing 102, adjacent directly to the motor output shaft 103, to provide a sealing effect.

[0044] Specifically, asFigure 2 and Figure 3 As shown in Figure 3 , the liquid supply assembly 2 includes a liquid supply housing 201, a liquid inlet 202 formed on the side of the liquid supply housing 201 for connecting with an external pipeline, and a liquid outlet 203 formed on the bottom of the liquid supply housing 201 for connecting and communicating with the centrifugal disc assembly 3.

[0045] During use, the liquid inlet 202 is connected to an external pipeline. When water flows through the pipeline, the fluid will be discharged into the centrifugal disc assembly 3 through the liquid outlet 203 of the liquid supply housing 201.

[0046] A second sealing structure 206 is provided at the connection between the side wall of the liquid supply housing 201 and the side wall of the motor housing 102, and a third sealing structure 207 is provided at the connection between the front end of the liquid supply housing 201 and the motor housing 102.

[0047] The second sealing structure 206 provides a sealing effect at the connection and fitting between the side wall of the motor housing 102 and the liquid supply housing 201, preventing the water introduced into the liquid supply housing 201 from leaking out through this connection.

[0048] The first sealing structure 205, the second sealing structure 206, and the third sealing structure 207 are rubber rings, the fourth sealing structure 208 is an oil seal material, and a shaft cavity 204 is formed in the liquid supply housing 201 for the motor output shaft 103 to pass through.

[0049] The oil seal material is existing nitrile rubber, hydrogenated nitrile rubber, or fluororubber. The shaft cavity 204 is set to be higher, providing a certain space for the section of the motor output shaft 103 extending out of the motor housing 102 and accessing the centrifugal disc assembly 3, so as to limit the direct contact between the fluid and the fourth sealing structure 208, thereby achieving the purpose of reducing the risk of water ingress into the motor assembly 1.

[0050] Specifically, as Figure 2 shown, the side wall coating structure is a cavity formed in the liquid supply housing 201 for the motor housing 102 to be embedded and placed. After the water flows in from the liquid inlet 202, it contacts the side wall of the motor housing 102 through the cavity to take away heat, and then enters the centrifugal disc assembly 3 through the liquid outlet 203.

[0051] The motor assembly 1 is embedded in the cavity of the liquid supply housing 201. One end of its motor output shaft 103 extending outwards is in contact with the bottom end face of the liquid supply housing 201, and the third sealing structure 207 ensures the sealing performance of this contact, thereby further reducing the risk of water ingress into the motor assembly 1.

[0052] An annular channel for water supply is formed between the inner wall of the liquid supply housing 201 and the outer wall of the motor housing 102, thereby increasing the contact area between the water flow and the motor housing 102. Through the flowing contact of the water flow with the side wall of the motor housing 102, the heat of the motor housing 102 can be quickly carried away, realizing the rapid heat dissipation of the motor housing 102.

[0053] Annular ribs are formed on the side wall of the motor housing 102; spiral ribs are formed on the side wall of the motor housing 102. Both the annular ribs and the spiral ribs are for increasing the contact area between the motor housing 102 and the water flow, which is beneficial to improving the heat dissipation effect of the motor housing 102.

[0054] Specifically, as Figures 1-4 shown, the liquid supply assembly 2 and the motor assembly 1 are fixed by bolts. By opening a hole groove on the side of the liquid supply housing 201 opposite to the motor housing 102 for the bolt to penetrate, the screw holes for the motor housing 102 to cooperate with the bolts are opened on the end plane of the motor housing 102. Compared with the traditional method of drilling holes on the arc-shaped side wall of the motor housing 102, it can simplify the processing of the motor housing 102 and achieve the purpose of simplifying the installation at the same time.

[0055] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spraying motor, comprising a centrifugal disk assembly (3) and a driving member for transmitting output to the centrifugal disk assembly (3), characterized in that: A liquid supply assembly (2) is mounted on the centrifugal disk assembly (3), and a side wall covering structure for dissipating heat from the driving component is formed in the liquid supply assembly (2).

2. The spraying motor according to claim 1, characterized in that: The driving component is composed of a motor assembly (1) and an electric adjustment mechanism (101) mounted on the top of the motor assembly (1), and the electric adjustment mechanism (101) performs speed control on the motor assembly (1).

3. The spraying motor according to claim 2, characterized in that: The motor assembly (1) comprises a motor housing (102) and a motor output shaft (103) assembled in the motor housing (102) for transmitting output of the centrifugal disk assembly (3).

4. The spraying motor according to claim 3, characterized in that: A first sealing structure (205) is provided at the connection between the rear end of the motor housing (102) and the electric adjustment mechanism (101), and a fourth sealing structure (208) is provided at the connection between the motor housing (102) and the motor output shaft (103).

5. The spraying motor according to claim 4, characterized in that: The liquid supply assembly (2) comprises a liquid supply housing (201), a liquid inlet (202) formed on the side of the liquid supply housing (201) and connected to an external pipeline, and a liquid outlet (203) formed on the bottom of the liquid supply housing (201) and connected to a centrifugal disk assembly (3).

6. The spraying motor according to claim 5, characterized in that: A second sealing structure (206) is provided at a connection between the liquid supply shell (201) and the side wall of the motor housing (102), and a third sealing structure (207) is provided at a connection between the liquid supply shell (201) and the front end of the motor housing (102).

7. The spraying motor according to claim 6, characterized in that: The first sealing structure (205), the second sealing structure (206) and the third sealing structure (207) are rubber rings, the fourth sealing structure (208) is made of oil sealing material, and the liquid supply housing (201) is formed with a shaft cavity (204) through which the motor output shaft (103) passes.

8. The spraying motor according to claim 1, characterized in that: The side wall covering structure is a cavity formed in the liquid supply shell (201) and matched with the motor housing (102) for embedding and housing. After water flows in from the liquid inlet (202), it contacts the side wall of the motor housing (102) through the cavity to remove heat, and then enters the centrifugal disk assembly (3) through the liquid outlet (203).

9. The spraying motor according to claim 8, characterized in that: The side wall of the motor housing (102) is formed with an annular rib.

10. The spraying motor according to claim 8, characterized in that: The side wall of the motor housing (102) is formed with spiral ribs.

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