Conveying control device

Abstract

The utility model is suitable for the technical field of ash material conveying, and provides a conveying control device which comprises a transfer tank arranged on one side of an ash material receiving terminal and used for transferring ash materials, a hopper is arranged above the transfer tank, a first discharging pipe used for feeding materials into the transfer tank is arranged at the discharging end of the hopper, and a second discharging pipe used for discharging the materials into the transfer tank is arranged at the discharging end of the hopper. A manual gate valve is arranged on the first discharge pipe; and the feeding valve is fixedly installed at the feeding end of the top of the transfer tank, and the feeding end of the feeding valve is fixedly connected with the discharging end of the first discharging pipe. According to the conveying control device provided by the scheme, the problems that in the material conveying process of existing traditional conveying machinery, the control effect is poor, feeding is uneven, and material discharging control is unstable due to reverse flow of compressed air are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ash material conveying, and in particular relates to a conveying control device. Background Art

[0002] In the field of powder application, there is a kind of powder with very good fluidity, very small angle of repose, very good fluidity, and very good fluidization performance of the powder, so it is difficult to control the quantitative feeding amount of this kind of material.

[0003] At present, traditional conveying machinery has gaps, and materials will flow through the gaps, resulting in poor control effect. At the same time, compressed air is used for quantitative feeding to achieve uniform feeding during the conveying process. However, in towers, boilers, dust collectors and other places, quantitative feeding requires compressed air transportation and mechanical feeding. During the feeding process, compressed air will flow in the opposite direction, and the material discharge control is unstable. For expensive materials, it is difficult to achieve fine control. Utility Model Content

[0004] The utility model provides a conveying control device, which aims to solve the problems of poor control effect, uneven feeding and unstable material discharging control caused by reverse flow of compressed air in the material conveying process of the current traditional conveying machinery.

[0005] The utility model is implemented in this way. A conveying control device comprises: a transfer tank for transferring ash materials arranged at one side of an ash material receiving terminal, a hopper is arranged above the transfer tank, a first discharge pipe for feeding materials into the transfer tank is arranged at the discharge end of the hopper, and a manual plug valve is arranged on the first discharge pipe; a feed valve, the feed valve is fixedly installed on the top feed end of the transfer tank, the feed end of the feed valve is fixedly connected to the discharge end of the first discharge pipe; an exhaust pipe, the exhaust pipe is fixedly connected to the transfer tank, and a An exhaust valve; a screw feeder for conveying ash material, the screw feeder being arranged below the transfer tank; a discharge valve, the discharge valve being fixedly mounted on the bottom discharge end of the transfer tank; a second discharge pipe for feeding material into the screw feeder, the second discharge pipe being fixedly mounted on the discharge valve, the discharge end of the second discharge pipe being fixedly connected to the feed end of the screw feeder; an air supply and discharge mechanism for air supply and discharge, the air supply and discharge mechanism being arranged on the screw feeder; a material discharge anti-blocking mechanism, the material discharge anti-blocking mechanism being arranged on the hopper.

[0006] Preferably, the air supply and discharge mechanism includes: an air supply pipe arranged on one side of the screw feeder; a first air outlet pipe and a second air outlet pipe fixedly connected to the air supply pipe, the air outlet end of the first air outlet pipe being fixedly connected to the air inlet end of the screw feeder; a pressure reducing valve and an air outlet valve respectively arranged on the first air outlet pipe and the second air outlet pipe; and an ash discharge pipe fixedly connected to the discharge end of the screw feeder, the discharge end of the ash discharge pipe being fixedly connected to the feed end of the terminal.

[0007] Preferably, the material discharge anti-blocking mechanism includes: a mounting bracket fixed on the hopper; a spiral stirring rod rotatably mounted on the mounting bracket, the bottom end of the spiral stirring rod extending into the discharge port of the hopper; a motor fixed on the mounting bracket for driving the spiral stirring rod to rotate; a coupling fixed on the output shaft of the motor, the other end of the coupling being fixedly connected to the spiral stirring rod.

[0008] Preferably, an assembly frame is fixedly mounted on the spiral stirring rod, and a scraper for cleaning the hopper is fixedly mounted on the assembly frame.

[0009] Preferably, the transfer tank is provided with a visual high material level window and a bottom material level window for observing the material level.

[0010] Preferably, an air source is provided on the air inlet end of the air supply pipe, and a pressure device for detecting pressure is provided on the ash discharge pipe.

[0011] Preferably, a protective shell is disposed outside the motor, the protective shell is fixedly connected to the assembly frame, and a heat dissipation port is disposed on the protective shell.

[0012] Compared with the related art, the conveying control device provided by the utility model has the following beneficial effects:

[0013] Through the design of the transfer tank, temporary storage and buffering of materials are achieved, which improves the continuity of material transportation. At the same time, the whole device integrates multiple functional modules, such as material unloading anti-blocking mechanism, screw feeder and air supply and discharge mechanism, etc., making the whole conveying control device more complete and more convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the main cross-sectional structure of a conveying control device provided by the utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 3 for Figure 1 An enlarged structural diagram of part A shown in FIG.

[0017] Figure 4 It is a structural schematic diagram of the assembly rack in the utility model.

[0018] Figure numerals: 1. ash material receiving terminal; 2. transfer tank; 3. hopper; 4. first discharge pipe; 5. manual gate valve; 6. feed valve; 7. exhaust valve; 8. exhaust pipe; 9. screw feeder; 10. discharge valve; 11. second discharge pipe; 12. air supply pipe; 13. first air outlet pipe; 14. second air outlet pipe; 15. pressure reducing valve; 16. air outlet valve; 17. ash outlet pipe; 18. pressure vessel; 19. air source connection; 20. mounting frame; 21. spiral stirring rod; 22. motor; 23. coupling; 24. assembly frame; 25. scraper. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The utility model embodiment provides a conveying control device, such as Figure 1-4As shown, the conveying control device comprises: a transfer tank 2 for transferring ash material arranged at one side of the ash material receiving terminal 1, a hopper 3 is arranged above the transfer tank 2, a first discharge pipe 4 for feeding material into the transfer tank 2 is arranged at the discharge end of the hopper 3, and a manual plug valve 5 is arranged on the first discharge pipe 4; a feed valve 6, the feed valve 6 is fixedly mounted on the top feed end of the transfer tank 2, and the feed end of the feed valve 6 is fixedly connected to the discharge end of the first discharge pipe 4; an exhaust pipe 8, the exhaust pipe 8 is fixedly connected to the transfer tank 2, and an exhaust valve 7 is arranged on the exhaust pipe 8; for conveying A screw feeder 9 for conveying ash material, the screw feeder 9 is arranged below the transfer tank 2; a discharge valve 10, the discharge valve 10 is fixedly mounted on the bottom discharge end of the transfer tank 2; a second discharge pipe 11 for feeding material into the screw feeder 9, the second discharge pipe 11 is fixedly mounted on the discharge valve 10, and the discharge end of the second discharge pipe 11 is fixedly connected to the feed end of the screw feeder 9; an air supply and discharge mechanism for air supply and discharge, the air supply and discharge mechanism is arranged on the screw feeder 9; a material discharge anti-blocking mechanism, the material discharge anti-blocking mechanism is arranged on the hopper 3.

[0022] It should be noted that, at present, traditional conveying machinery has inevitable gaps in its design, which make it easy for materials to pass through and flow during the conveying process, thereby greatly reducing the control accuracy of the material flow rate. In order to achieve quantitative feeding, compressed air is often used as a power to convey materials, in order to achieve uniform material delivery during the conveying process; however, in key applications such as towers, boilers, and dust collectors, the accuracy of material feeding is extremely high; although a combination of compressed air conveying and mechanical feeding is adopted, in actual operation, due to the reverse flow of compressed air, the stability of material discharge is seriously affected, making it extremely difficult to finely control expensive materials and difficult to meet the production requirements of high precision and high stability; therefore, in response to these problems, it is urgent to optimize the existing conveying control technology to improve the stability and control accuracy of material transportation;

[0023] In this embodiment, the transfer tank 2: serves as a transfer station for materials, and is used to temporarily store the ash materials transported from the hopper 3; the hopper 3: serves as a preliminary collection point for the ash materials, and transports the ash materials to the transfer tank 2 through the first discharge pipe 4; the manual gate valve 5 and the feed valve 6: jointly control the flow of the ash materials from the hopper 3 to the transfer tank 2 to ensure the controllability of the material flow; the exhaust valve 7 and the exhaust pipe 8: are used to exhaust the gas in the transfer tank 2 to prevent the material from being affected by the air pressure during the transportation process. Screw feeder 9: through the rotation of the spiral blade, the material is lifted from the bottom to the discharge port to achieve continuous and uniform transportation of the material; discharge valve 10: controls the flow of materials from the transfer tank 2 to the screw feeder 9; second discharge pipe 11: guides the material from the discharge valve 10 to the feed port of the screw feeder 9. This mechanism uses compressed air as power to help the material to be smoothly transported in the screw feeder 9 and discharged through the discharge port; material discharge anti-blocking mechanism: set on the hopper 3 to prevent the material from being blocked during the transportation process and ensure the smooth flow of the material. The material is first collected through the hopper 3, and after being controlled by the manual gate valve 5 and the feed valve 6, it enters the transfer tank 2 for temporary storage; when the material needs to be transported, open the discharge valve 10, and the material passes through the second discharge pipe 11 enters the screw feeder 9; the screw feeder 9 starts working, lifts the material to a certain height, and discharges it through the discharge port; at the same time, the air supply and discharge mechanism works, using compressed air to help the material to be smoothly transported in the screw feeder 9; the material is finally discharged through the discharge port of the screw feeder 9, completing the entire transportation process; through the setting of the transfer tank 2, the temporary storage and buffering of the material are realized, and the continuity of the material transportation is improved; the application of the screw feeder 9 realizes the continuous and uniform transportation of the material and improves the transportation accuracy; the use of the air supply and discharge mechanism solves the problem of the reverse flow of compressed air and improves the stability of the material discharge; the setting of the material discharge anti-blocking mechanism prevents the material from being blocked during the transportation process and ensures the smoothness of the material flow.

[0024] In a further preferred embodiment of the utility model, the air supply and discharge mechanism includes: an air supply pipe 12 arranged on one side of the screw feeder 9; a first air outlet pipe 13 and a second air outlet pipe 14 fixedly connected to the air supply pipe 12, and the air outlet end of the first air outlet pipe 13 is fixedly connected to the air inlet end of the screw feeder 9; a pressure reducing valve 15 and an air outlet valve 16 respectively arranged on the first air outlet pipe 13 and the second air outlet pipe 14; and an ash discharge pipe 17 fixedly connected to the discharge end of the screw feeder 9, and the discharge end of the ash discharge pipe 17 is fixedly connected to the feed end of the terminal 1.

[0025] In this embodiment, the air supply pipe 12: serves as the main conveying pipeline of the air source, and provides the required compressed air for the screw feeder 9; the first air outlet pipe 13: guides the compressed air from the air supply pipe 12 to the air inlet end of the screw feeder 9, and provides power for the material conveying of the screw feeder 9; the second air outlet pipe 14: although the specific purpose of the second air outlet pipe 14 is not described in detail in this embodiment, it may be used for other functions related to compressed air, such as cleaning, purging, etc.; the pressure reducing valve 15: is installed on the air outlet pipeline, and is used to adjust and control the pressure of the compressed air to ensure that the screw feeder 9 can work stably and efficiently; the air outlet valve 16: is used to control the opening and closing of the air outlet pipeline, and realizes the precise control of the compressed air delivery; the ash outlet pipe 17: connects the discharge end of the screw feeder 9 with the terminal 1 to form a complete material conveying channel; when When it is necessary to start the screw feeder 9 for material transportation, first open the air source on the air supply pipe 12; the compressed air enters the first air outlet pipe 13 through the air supply pipe 12, and after being adjusted by the pressure reducing valve 15, enters the air inlet end of the screw feeder 9; the screw feeder 9 starts to work under the action of compressed air, lifts the material to a certain height, and discharges it into the ash outlet pipe 17 through the discharge port; the material is transported to the terminal 1 through the ash outlet pipe 17, completing the entire transportation process; through the setting of the air supply and discharge mechanism, precise control of the screw feeder 9 is achieved, and the stability and efficiency of material transportation are improved; the use of the pressure reducing valve 15 ensures that the screw feeder 9 works within an appropriate pressure range and extends the service life of the equipment; the connection of the ash outlet pipe 17 enables the material to be smoothly and continuously transported from the screw feeder 9 to the terminal 1, meeting the production needs.

[0026] In a further preferred embodiment of the utility model, the material discharge anti-blocking mechanism includes: a mounting frame 20 fixed on the hopper 3; a spiral stirring rod 21 rotatably mounted on the mounting frame 20, the bottom end of the spiral stirring rod 21 extending into the discharge port of the hopper 3; a motor 22 fixed on the mounting frame 20 for driving the spiral stirring rod 21 to rotate; a coupling 23 fixed on the output shaft of the motor 22, the other end of the coupling 23 being fixedly connected to the spiral stirring rod 21.

[0027] In this embodiment, the mounting frame 20: serves as the supporting structure of the entire material discharge anti-blocking mechanism, is fixed on the hopper 3, and is used to install the spiral stirring rod 21 and the motor 22; the application of the spiral stirring rod 21: the spiral stirring rod 21: is rotatably mounted on the mounting frame 20, and its bottom end extends into the discharge port of the hopper 3. The rotation of the spiral stirring rod 21 can effectively stir and push the material in the hopper 3 to prevent the material from being blocked at the discharge port; the motor 22 is fixed on the mounting frame 20 to provide power for the spiral stirring rod 21; the coupling 23 connects the output shaft of the motor 22 and the spiral stirring rod 21 to ensure that the power can be transmitted smoothly and effectively; when the material in the hopper 3 may be blocked, the motor 22 is started; the motor 22 drives the spiral stirring rod 21 to rotate through the coupling 23; the spiral stirring rod 21 stirs and pushes the material in the discharge port of the hopper 3 to prevent the material from being blocked; the setting of the material unblocking mechanism effectively solves the problem of possible blockage of the material during the transportation process, and ensures the smoothness of the material flow; the rotating stirring effect of the spiral stirring rod 21 can not only prevent blockage, but also promote the uniform distribution of the material and improve the transportation efficiency; the configuration of the motor 22 and the coupling 23 makes the drive of the spiral stirring rod 21 more stable and reliable, and prolongs the service life of the mechanism.

[0028] In a further preferred embodiment of the present invention, an assembly frame 24 is fixedly mounted on the spiral stirring rod 21 , and a scraper 25 for cleaning the hopper 3 is fixedly mounted on the assembly frame 24 .

[0029] In this embodiment, the assembly frame 24 is fixedly mounted on the spiral stirring rod 21 as an additional support structure for mounting the scraper 25; the scraper 25 is fixedly mounted on the assembly frame 24 and moves with the rotation of the spiral stirring rod 21. The design of the scraper 25 enables it to be close to the inner wall of the hopper 3, thereby effectively cleaning the material attached to the inner wall; when the spiral stirring rod 21 rotates, the assembly frame 24 and the scraper 25 thereon also rotate together; during the rotation process, the scraper 25 is close to the inner wall of the hopper 3, scraping off the material attached to the inner wall, and pushing it to the discharge port with the rotation of the spiral stirring rod 21; by adding the assembly frame 24 and the scraper 25 to the spiral stirring rod 21, not only the stirring and pushing ability of the spiral stirring rod 21 is enhanced, but also the material residue on the inner wall of the hopper 3 can be effectively cleaned; the design of the scraper 25 makes the distribution of the material in the hopper 3 more uniform, further preventing the blockage and accumulation of the material; the function of cleaning the inner wall of the hopper 3 prolongs the service life of the hopper 3, reduces the maintenance cost, and improves the stability and efficiency of the entire conveying system.

[0030] In a further preferred embodiment of the present invention, the transfer tank 2 is provided with a visual high material level window and a bottom material level window for observing the material level.

[0031] In this embodiment, the high material level window is set at the upper part of the transfer tank 2, and is used to observe the high level of the material in the tank. Through this window, the operator can intuitively understand the accumulation height of the material in the tank, so as to judge whether it is necessary to stop feeding or adjust the conveying speed; the bottom material level window is set at the bottom of the transfer tank 2 or near the bottom, and is used to observe the low level of the material in the tank. Through the bottom material level window, the operator can judge whether the material is about to be emptied, so as to start or adjust the next stage of conveying operation in time; the operator can observe the material situation in the transfer tank 2 through the high material level window and the bottom material level window regularly or as needed; according to the observed material level information, the operator can make corresponding operation decisions, such as adjusting the conveying speed, starting or stopping related equipment, etc.; by setting up a visual high material level window and a bottom material level window, the operator can intuitively understand the material situation in the transfer tank 2 without frequently opening the tank body for inspection, thereby improving work efficiency; real-time grasp of the material level information helps the operator to control the material conveying process more accurately, avoids various problems caused by too much or too little material, and improves the stability and reliability of the entire conveying system; the setting of the material level window also helps to reduce operating errors and safety hazards, and improves the safety of the working environment.

[0032] In a further preferred embodiment of the present invention, an air source 19 is provided on the air inlet end of the air supply pipe 12, and a pressure device 18 for detecting pressure is provided on the ash discharge pipe 17.

[0033] In this embodiment, the air source 19 is installed on the air inlet end of the air supply pipe 12, and is used to connect to an external air source to provide a stable air pressure and flow rate for the air supply and discharge mechanism; the air source 19 can be an air pipe joint, a valve or other connecting device to ensure the smooth connection between the air supply pipe 12 and the external air source; the pressure gauge 18 is installed on the ash discharge pipe 17, and is used to monitor the pressure changes in the pipeline in real time; the pressure gauge 18 can be a pressure gauge, a sensor or other measuring device, which can accurately reflect the pressure situation in the pipeline; before use, the air source 19 is connected to the external air source to ensure that The air supply and discharge mechanism is ensured to obtain stable air pressure and flow; when the material is transported through the ash discharge pipe 17, the pressure device 18 will monitor the pressure changes in the pipeline in real time, and feed back the relevant information to the operator or the control system; by setting up the air source 19, it is ensured that the air supply and discharge mechanism can work stably and efficiently, avoiding transportation problems caused by insufficient or unstable air pressure; the real-time monitoring function of the pressure device 18 enables the operator to understand the pressure situation in the ash discharge pipe 17 in time, so as to make corresponding adjustments or processing, ensuring the smoothness and safety of material transportation.

[0034] In a further preferred embodiment of the present invention, a protective shell is disposed outside the motor 22 , the protective shell is fixedly connected to the assembly frame 24 , and a heat dissipation port is disposed on the protective shell.

[0035] In this embodiment, the protective shell can effectively prevent the motor 22 from being invaded by dust, moisture, foreign matter, etc. in the external environment, thereby protecting the normal operation of the motor 22; the setting of the heat dissipation port can effectively discharge the heat generated by the motor 22 to ensure the stable operation of the motor 22.

[0036] To sum up, the conveying control device provided by the technical solution improves the stability and control accuracy of material conveying through reasonable structural design and functional configuration, meets the production needs of high precision and high stability, and solves the problems of poor control effect, uneven feeding and unstable material discharge control caused by reverse flow of compressed air in the current traditional conveying machinery during the material conveying process.

[0037] Compared with the relevant technology, the design of the transfer tank 2 realizes the temporary storage and buffering of materials, and improves the continuity of material transportation; at the same time, the whole device integrates multiple functional modules, such as the material unloading anti-blocking mechanism, the screw feeder 9 and the air supply and discharge mechanism, etc., making the whole conveying control device more complete and more convenient to operate.

[0038] It is worth noting that the circuits, electronic components and modules involved in the present utility model are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present utility model does not involve improvements to software and methods.

[0039] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0040] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A conveying control device, characterized in that: include: A transfer tank for transferring ash material is arranged on one side of the ash material receiving terminal, a hopper is arranged above the transfer tank, a first discharge pipe for feeding material into the transfer tank is arranged at the discharge end of the hopper, and a manual gate valve is arranged on the first discharge pipe; A feed valve, the feed valve is fixedly mounted on the top feed end of the transfer tank, and the feed end of the feed valve is fixedly connected to the discharge end of the first discharge pipe; An exhaust pipe, the exhaust pipe is fixedly connected to the transfer tank, and an exhaust valve is provided on the exhaust pipe; A screw feeder for conveying ash, wherein the screw feeder is arranged below the transfer tank; A discharge valve, the discharge valve is fixedly mounted on the bottom discharge end of the transfer tank; a second discharge pipe for feeding materials into the screw feeder, the second discharge pipe being fixedly mounted on the discharge valve, and a discharge end of the second discharge pipe being fixedly connected to a feed end of the screw feeder; An air supply and discharge mechanism for supplying air and discharging materials, wherein the air supply and discharge mechanism is arranged on the screw feeder; A material discharge anti-blocking mechanism is arranged on the hopper.

2. The conveying control device according to claim 1, characterized in that: The air supply and discharge mechanism comprises: An air supply pipe arranged on one side of the screw feeder; A first air outlet pipe and a second air outlet pipe are fixedly connected to the air supply pipe, wherein the air outlet end of the first air outlet pipe is fixedly connected to the air inlet end of the screw feeder; A pressure reducing valve and an air outlet valve are respectively arranged on the first air outlet pipe and the second air outlet pipe; A ash discharging pipe is fixedly connected to the discharging end of the spiral feeder, and the discharging end of the ash discharging pipe is fixedly connected to the feeding end of the terminal.

3. The conveying control device according to claim 1, characterized in that: The material unloading anti-blocking mechanism comprises: a mounting frame fixed to the hopper; Rotating a spiral stirring rod mounted on the mounting frame, wherein the bottom end of the spiral stirring rod extends into the discharge port of the hopper; A motor fixed on the mounting frame for driving the spiral stirring rod to rotate; A coupling is fixed on the output shaft of the motor, and the other end of the coupling is fixedly connected to the spiral stirring rod.

4. The conveying control device according to claim 3, characterized in that: An assembly frame is fixedly mounted on the spiral stirring rod, and a scraper for cleaning the hopper is fixedly mounted on the assembly frame.

5. The conveying control device according to claim 1, characterized in that: The transfer tank is provided with a visual high material level window and a bottom material level window for observing the material level.

6. The conveying control device according to claim 2, characterized in that: An air source is arranged on the air inlet end of the air supply pipe, and a pressure device for detecting pressure is arranged on the ash discharge pipe.

7. The conveying control device according to claim 4, characterized in that: A protective shell is arranged outside the motor, the protective shell is fixedly connected to the assembly frame, and a heat dissipation port is arranged on the protective shell.

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