Intelligent motor for hoist

Abstract

The application relates to the technical field of electric machines, and discloses an intelligent electric machine for a hoist, which comprises an electric machine body, a dustproof cover plate and a protective shell are arranged on the electric machine body, a lifting rod, a rotating assembly and a cleaning assembly are arranged in the dustproof cover plate, the cleaning assembly comprises a cleaning scraping rod and a movable cleaning box, the cleaning scraping rod is used for cleaning the outer surface of the dustproof cover plate, the rotating assembly drives the movable cleaning box to clean the inner surface of an air inlet hole in the dustproof cover plate, and the dustproof cover plate is cleaned inside the air inlet hole, the outer side surface of the air inlet hole in the dustproof cover plate can be cleaned through the cleaning scraping rod, the movable cleaning box is used for cleaning the inner side and the inside of the air inlet hole, the two are matched with each other, dust is prevented from entering the electric machine body through the air inlet hole in all directions, key components such as a stator and a rotor in the electric machine are effectively protected, problems such as abrasion and short circuit caused by dust are reduced, and the reliability and durability of the electric machine are further improved.

Description

Technical Field

[0001] This invention relates to the field of motor technology, specifically to an intelligent motor for a lifting machine. Background Technology

[0002] In modern industrial production, hydraulic lifts are widely used in many fields such as automobile repair, logistics loading and unloading, and high-altitude operations. Hydraulic lifts play a vital role in various industries. As the core power component of hydraulic lifts, permanent magnet motors have advantages such as high efficiency, power factor, and wide speed range. The performance of permanent magnet motors directly affects the working efficiency, stability, and service life of hydraulic lifts.

[0003] Permanent magnet motors generate a lot of heat during long-term operation. If the heat cannot be dissipated effectively in time, the excessive temperature will cause the permanent magnets inside the motor to demagnetize, reducing the motor's performance and even causing damage. Therefore, a fan is usually installed inside the permanent magnet motor for heat dissipation. However, when the fan is working, dust and other impurities in the air can easily enter the motor through the air intake. After the permanent magnet motor has been used for a long time, the air intake can easily become blocked by dust and other impurities, which can reduce the heat dissipation effect of the permanent magnet motor and affect the normal operation of the motor. This requires frequent cleaning of the dust in the air intake. Generally, a cleaning cloth is used to clean the outer surface of the air intake in the permanent magnet motor. However, this cleaning method cannot ensure that the dust inside the air intake and the side of the air intake close to the motor cavity is removed. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent motor for a lifting machine to solve the problems mentioned in the background art.

[0005] Technical solution

[0006] This invention provides the following technical solution: an intelligent motor for a lifting machine, comprising a motor body, a dust cover and a protective shell on the motor body, a lifting rod, a rotating assembly and a cleaning assembly disposed in the dust cover, the rotating assembly including a pushing column, and the cleaning assembly including a cleaning scraper and a movable cleaning box. When the lifting rod moves upward, it drives the rotating assembly to rotate and drives the cleaning scraper to contact the outer surface of the dust cover, cleaning the outer surface of the dust cover. The rotation of the rotating assembly drives the movable cleaning box through the pushing column to clean the inner surface of the air inlet in the dust cover, and at the same time cleans the inside of the air inlet in the dust cover.

[0007] Preferably, a threaded rod is provided on the main shaft of the motor body, and a threaded block is provided on the threaded rod. The sides of the threaded block are fixedly connected to the lifting rod. A limit post is provided in the protective shell. A matching inclined push block is provided on the same side of the threaded block and the limit post. After the threaded block moves upward, it drives the limit post to move through the inclined push block, and the limit post fixes the threaded block.

[0008] Preferably, the rotating assembly further includes a micro motor, the output shaft of which is provided with a cooling fan and a connecting block, and a rotating shaft block is movably installed between two adjacent lifting rods, the rotating shaft block being provided with a cam column and a locking block respectively.

[0009] Preferably, the connecting block has a snap-fit ​​groove that matches the snap-fit ​​block, and the cam column and the push column are in periodic contact.

[0010] Preferably, the cleaning component further includes a first fixing box and a second fixing box, which are connected by a connecting pipe and a second one-way air inlet valve is provided in the connecting pipe. A ventilation channel is provided through the push column, and one end of the push column extends into the second fixing box, while the other end is connected to the ventilation cavity in the movable cleaning box.

[0011] Preferably, the second fixed box has a first compression chamber and a second compression chamber, and a first one-way air inlet valve and a pressure relief valve are provided between the first compression chamber and the second compression chamber. A piston rod is fixedly installed in the first compression chamber and extends into the air passage. A second compression spring and a piston plate are provided in the second compression chamber.

[0012] Preferably, a fixing rod is fixedly installed in the inner cavity of the mobile cleaning box, and a first compression spring and a push plate are respectively provided on the outer side of the fixing rod. The push plate is located below the ventilation channel, and a connecting through hole is opened through the lower side of the mobile cleaning box. Gas pushes the push plate down, thereby pushing the air below the push plate through the connecting through hole to clean the air inlet.

[0013] Preferably, the first fixed box is provided with an adjustment chamber and a piston chamber. The adjustment chamber is provided with a gear assembly, and the piston chamber is provided with a piston block. The lower part of the movable cleaning box is meshed with the gear assembly, and the movable cleaning box drives the piston block to move in the piston chamber through the gear assembly.

[0014] Preferably, an air intake channel is provided between the regulating chamber and the piston chamber, and a gap is left between the air intake channel and the piston block.

[0015] Beneficial effects

[0016] Compared with the prior art, the present invention provides an intelligent motor for a lifting machine, which has the following advantages:

[0017] 1. In this invention, the outer surface of the air inlet in the dust cover can be cleaned by the cleaning scraper, while the moving cleaning box cleans the inner side and interior of the air inlet. The two work together to prevent dust from entering the motor body through the air inlet in all directions, effectively protecting the key components such as the stator and rotor inside the motor, reducing wear and short circuits caused by dust, and further improving the reliability and durability of the motor.

[0018] 2. In this invention, when the push column moves, the gas is squeezed and released through the ventilation channel, the first extrusion chamber, the second extrusion chamber and other structures. When excess gas enters the moving cleaning box, it pushes the push plate down and blows the dust in the inner side of the dust cover and the air inlet to the outside through the connecting through hole. The gas force is used to effectively clean the dust, prevent the dust from blocking the air inlet and ensure that the heat dissipation channel of the motor is unobstructed.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0020] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a partial sectional view of the front of the motor body of the present invention;

[0024] Figure 3 This is a cross-sectional view of the protective shell of the present invention;

[0025] Figure 4 This is a first-angle cross-section view of the dust cover plate of the present invention;

[0026] Figure 5 This is a second perspective view of the cross-section of the dust cover plate of the present invention;

[0027] Figure 6 This is a schematic diagram of the operation of the cam column and push column of the present invention;

[0028] Figure 7 This is a cross-sectional view of the connection between the push column and the second fixing box in this invention;

[0029] Figure 8This is a cross-sectional view of the connection between the push column and the movable cleaning box in this invention;

[0030] Figure 9 This is a cross-sectional view of the movable cleaning box of the present invention;

[0031] Figure 10 This is a schematic diagram showing how the movable cleaning box of the present invention moves by pushing the piston block through the gear assembly in the first fixed box.

[0032] Explanation of reference numerals in the attached figures:

[0033] In the diagram: 1. Motor body; 2. Dust cover; 3. Protective shell; 4. Air inlet; 5. Cleaning scraper; 6. Threaded rod; 7. Limiting post; 8. Lifting rod; 9. Threaded block; 10. Micro motor; 11. Cooling fan; 12. Connecting block; 13. Rotating shaft block; 14. Cam column; 15. First fixing box; 16. Second fixing box; 17. Moving cleaning box; 18. Pushing column; 19. Connecting pipe; 20. Snap-fit ​​groove; 21. Snap-fit ​​block; 22. Ventilation channel; 23. First compression chamber; 24. Piston column; 25. Piston plate; 26. First one-way air intake valve; 27. Pressure relief valve; 28. Second one-way air intake valve; 29. ​​Ventilation channel; 30. First compression spring; 31. Connecting through hole; 32. Fixing rod; 33. Pushing plate; 34. Piston chamber; 35. Gear assembly; 36. Piston block; 37. Air intake channel. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-10 This invention provides a technical solution: an intelligent motor for a lifting machine, comprising a motor body 1, a main shaft, a stator, and a rotor. A dust cover 2 is bolted to the lower part of the motor body 1, and a protective shell 3 is bolted to the upper part of the motor body 1. The dust cover 2 contains a lifting rod 8, a rotating assembly, and a cleaning assembly. The lifting rod 8 passes through the stator but does not contact the rotor. The rotating assembly includes a push column 18, and the cleaning assembly includes a cleaning scraper 5 and a movable cleaning box 17. When the lifting rod 8 moves upward, it drives the rotating assembly to rotate and causes the cleaning scraper 5 to contact the outer surface of the dust cover 2 for cleaning. The rotation of the rotating assembly drives the push column 18 to move the cleaning box 17 to clean the inner surface of the air inlet 4 in the dust cover 2, and simultaneously cleans the inside of the air inlet 4 in the dust cover 2.

[0036] A PLC LCD display panel and a face recognition and fingerprint recognition control system can be installed on the outside of the motor body 1. The PLC LCD display panel enables human-machine interface exchange, and the face recognition and fingerprint recognition control system enables remote control and intelligent control of the permanent magnet motor.

[0037] The intelligent control permanent magnet motor has low noise, about 5-10 dB(A) lower than that of conventional motors; the intelligent control permanent magnet motor has a soft start device, with low starting current and low voltage drop; the intelligent control permanent magnet motor has high starting torque, and will not have poor starting phenomenon; the intelligent control permanent magnet motor has high efficiency, high power factor, and good energy saving effect, 10% higher than that of conventional motors; the intelligent control permanent magnet motor is small in size and light in weight, about 50% lighter than the original motor of the same power.

[0038] Please see Figure 2 , Figure 3 In this embodiment, a threaded rod 6 is provided on the main shaft of the motor body 1. The threaded rod 6 is a section on the main shaft of the motor body 1, and a threaded block 9 is provided on the threaded rod 6. The sides of the threaded block 9 are fixedly connected to the lifting rod 8. When the motor body 1 is working, it will drive the threaded rod 6 to rotate, and at the same time drive the threaded block 9 to move upward. When the threaded block 9 moves upward a certain distance and begins to disengage from the threaded rod 6, the threaded block 9 will move on the smooth surface of the main shaft until the limiting post 7 moves below the threaded block 9, limiting the threaded block 9. To ensure that the position of the threaded block 9 does not move and is fixed, a limit post 7 is provided in the protective shell 3. On the same side of the threaded block 9 and the limit post 7, there are matching inclined push blocks. At the same time, the matching inclined push blocks on the same side of the threaded block 9 and the limit post 7 are located in the inner wall of the protective shell 3 and move. After the threaded block 9 moves upward, it drives the limit post 7 to move through the inclined push block and fixes the threaded block 9 through the limit post 7. The upward movement of the threaded block 9 will cause the limit post 7 to move towards the side of the threaded block 9 through the matching inclined push block.

[0039] The cooling fan 11 is linked with the micro motor 10. When the lifting rod 8 moves upward and the locking block 21 of the rotating shaft block 13 connects with the locking groove 20 of the connecting block 12, the micro motor 10 starts and drives the cooling fan 11 to exhaust air to cool the motor body 1. This can effectively reduce the internal temperature of the motor body 1, avoid damage to the permanent magnet motor due to excessive temperature, ensure that the motor maintains stable performance during long-term operation, extend the service life of the motor, reduce maintenance costs and downtime caused by overheating failures, and improve the working efficiency of the hydraulic lift.

[0040] Please see Figure 4 , Figure 5In this embodiment, the rotating assembly also includes a micro motor 10, which is fixedly installed at the opening on the side of the motor body 1 facing the dust cover 2. A cooling fan 11 and a connecting block 12 are provided on the output shaft of the micro motor 10. The lifting rod 8 is L-shaped, and a rotating shaft block 13 is movably installed between the shorter sides of two adjacent lifting rods 8. The rotating shaft block 13 is located below the micro motor 10. A cam column 14 is fixedly installed below the rotating shaft block 13, and the lower part of the cam column 14 is fixedly connected to the cleaning scraper 5. A snap-fit ​​block 21 is fixedly installed above the rotating shaft block 13.

[0041] In this embodiment, the connecting block 12 is provided with a snap-fit ​​groove 20 that matches the snap-fit ​​block 21. When the lifting rod 8 moves upward, it will drive the snap-fit ​​block 21 on the rotating shaft block 13 to connect with the snap-fit ​​groove 20 in the connecting block 12. In this way, when the micro motor 10 rotates, it will drive the rotating shaft block 13 to rotate together. When the rotating shaft block 13 rotates, it can drive the cam column 14 and the cleaning scraper 5 to rotate together. The cam column 14 and the push column 18 periodically contact each other.

[0042] A contact module is provided in the slot 20. Only when the slot 21 is connected to the slot 20 will the micro motor 10 work, drive the cooling fan 11 to exhaust and cool the motor body 1, and drive the moving cleaning box 17 and the cleaning scraper 5 to clean the sides and inside of the air inlet 4, preventing external dust from entering the motor body 1 and increasing the service life of the motor.

[0043] By incorporating a contact module in the card slot 20, the micro motor 10 only starts operating after the card block 21 connects to the card slot 20, driving the cooling fan 11 to dissipate heat and the cleaning components to function. This intelligent control design achieves linkage between cleaning actions and motor operation, eliminating the need for additional manual operation. It automatically completes cleaning and heat dissipation upon motor startup, improving the automation and intelligence level of the equipment and reducing manual maintenance costs.

[0044] The cleaning scraper 5 can clean the outer surface of the air inlet 4 in the dust cover 2, while the movable cleaning box 17 can clean the inner side of the air inlet 4, preventing dust from passing through the air inlet 4 and thus preventing the cleaning scraper 5 from being unable to clean the dust.

[0045] Please see Figures 5-10In this embodiment, the cleaning assembly further includes a first fixing box 15 and a second fixing box 16. Both the first fixing box 15 and the second fixing box 16 are fixedly installed inside the dust cover 2 and do not contact the air inlet 4. The first fixing box 15 and the second fixing box 16 are connected by a connecting pipe 19, and a second one-way air inlet valve 28 is installed in the connecting pipe 19. Gas in the piston chamber 34 enters the second fixing box 16 through the second one-way air inlet valve 28, while gas compressed in the second fixing box 16 cannot pass through the second one-way air inlet valve 28. 8 leads to the piston chamber 34, and the connecting pipe 19 is connected to the piston chamber 34. A ventilation channel 22 is provided through the push column 18, and one end of the push column 18 extends into the second fixed box 16. When the push column 18 is not working, the ventilation channel 22 is connected to the first compression chamber 23. The other end of the ventilation channel 22 is connected to the ventilation cavity 29 in the movable cleaning box 17. When the ventilation channel 22 is compressed by gas, it will quickly pass through the ventilation cavity 29 into the movable cleaning box 17 and quickly push the push plate 33.

[0046] In this embodiment, the second fixed box 16 has a first compression chamber 23 and a second compression chamber. A first one-way air inlet valve 26 and a pressure relief valve 27 are provided between the first compression chamber 23 and the second compression chamber. A piston column 24 is fixedly installed in the first compression chamber 23. The cross-section of the piston column 24 is equal to the cross-section of the ventilation channel 22. That is, when the piston column 24 enters the ventilation channel 22, it can block the ventilation channel 22. When the piston column 24 extends into the ventilation channel 22, the push column 18 will compress the gas in the first compression chamber 23 and enter the second compression chamber through the first one-way air inlet valve 26. The second compression chamber is provided with a second compression spring and a piston plate 25, which will compress the gas in the first compression chamber 23 and enter the second compression chamber through the first one-way air inlet valve 26. The stopper plate 25 is pushed, and the second compression spring is compressed. When the push column 18 can no longer move in the second fixed box 16, that is, when the cam column 14 pushes the push column 18 to the maximum distance, the cam column 14 will be about to separate from the push column 18. At this time, the pressure relief valve 27 will open, and the compressed gas will be released by the elastic force of the second compression spring and quickly return to the first compression chamber 23 through the pressure relief valve 27. This will cause the push column 18 to move out of the second fixed box 16 until the piston column 24 and the venting channel 22 of the push column 18 separate from each other. In this way, the excess gas will flow to the moving cleaning box 17 through the venting channel 22 and the venting cavity 29.

[0047] Piston plate 25 is located above first one-way intake valve 26 and pressure relief valve 27. First one-way intake valve 26 facilitates the entry of gas from first extrusion chamber 23 into second extrusion chamber. Pressure relief valve 27 facilitates the rapid entry of gas from second extrusion chamber into first extrusion chamber 23. Extrusion push column 18 drives moving cleaning box 17 to clean the inner surface and interior of air inlet 4.

[0048] In this embodiment, a fixing rod 32 is fixedly installed in the inner cavity of the mobile cleaning box 17. A first compression spring 30 and a push plate 33 are respectively provided on the outer side of the fixing rod 32. The first compression spring 30 is fixedly installed below the push plate 33, and the first compression spring 30 does not contact the connecting through hole 31. The push plate 33 is located below the ventilation channel 29. The push plate 33 divides the inner cavity of the mobile cleaning box 17 into upper and lower parts, which are not connected to each other. When the push plate 33 is squeezed by the gas from the ventilation channel 29, the push plate 33 will press down quickly, thereby blowing the dust inside the dust cover 2 and the air inlet 4 to the outside of the dust cover 2 through the connecting through hole 31. The lower side of the mobile cleaning box 17 has a through hole 31. The gas pushes the push plate 33 down, thereby pushing the air below the push plate 33 through the connecting through hole 31 to clean the air inlet 4.

[0049] The connecting through hole 31 and the air inlet hole 4 are distributed in a one-to-one correspondence.

[0050] After the cam column 14 separates from the push column 18, the gas in the second extrusion chamber enters the first extrusion chamber 23 through the pressure relief valve 27. Due to the cooperation of the first one-way air intake valve 26 and the second one-way air intake valve 28, the gas in the piston chamber 34 will not return to the connecting pipe 19 when the cam column 14 contacts the push column 18. This gas will quickly impact the push plate 33 through the ventilation channel 22 and the ventilation chamber 29. After being impacted, the push plate 33 will quickly discharge the gas through the connecting through hole 31 and the air intake hole 4, thereby discharging the dust inside the air intake hole 4.

[0051] In this embodiment, the first fixed box 15 is provided with an adjustment cavity and a piston cavity 34. The adjustment cavity is provided with a gear assembly 35, and the piston cavity 34 is provided with a piston block 36. The lower part of the movable cleaning box 17 is meshed with the gear assembly. The movable cleaning box 17 drives the piston block 36 to move in the piston cavity 34 through the gear assembly 35.

[0052] The gear assembly 35 includes two rotating gears and a rack plate. The two rotating gears are distributed on the upper and lower sides of the rack plate and are meshed with the rack plate. The upper and lower sides of the rack plate are provided with racks that match the rotating gears. A rack post is fixedly installed on the lower end of the movable cleaning box 17 and the upper end of the piston block 36. The rack post is meshed with the rotating gears. When the movable cleaning box 17 moves, it will drive the piston block 36 to move together through the rack post and the gear assembly 35. The moving direction and distance of the movable cleaning box 17 and the piston block 36 are the same.

[0053] In this embodiment, an air intake channel 37 is provided between the adjustment chamber and the piston chamber 34, and a gap is left between the air intake channel 37 and the piston block 36. When the moving cleaning box 17 moves to the side of the second fixed box 16, the moving cleaning box 17 will drive the piston block 36 to move in the piston chamber 34 through the gear assembly 35. At this time, the gas in the piston chamber 34 will enter the second fixed box 16 through the second one-way air intake valve 28. When the moving cleaning box 17 moves away from the side of the second fixed box 16, the moving cleaning box 17 will also drive the piston block 36 in the piston chamber 34 through the gear assembly. When the moving cleaning box 17 completes its movement, the piston chamber 34 will be refilled with air through the air intake channel 37 to prevent the piston block 36 from failing to push the gas into the first extrusion chamber 23 through the second one-way air intake valve 28 during the next movement.

[0054] During its movement, the movable cleaning box 17 drives the piston block 36 to move within the piston chamber 34 via the gear assembly 35, achieving gas circulation between the piston chamber 34 and the second fixed box 16. When the movable cleaning box 17 moves towards the second fixed box 16, the gas in the piston chamber 34 enters the second fixed box 16; when it moves away, the piston chamber 34 can be refilled with air through the air intake channel 37, providing power for the next gas push, ensuring the continuous and stable operation of the entire cleaning and gas circulation system, and guaranteeing the continuity and stability of the cleaning effect.

[0055] The working principle of this embodiment is as follows: When the hydraulic lift starts working, the permanent magnet motor will also start working. The main shaft inside the permanent magnet motor will rotate first. When the main shaft rotates, it will drive the threaded block 9 to rotate. When the threaded block 9 rotates, it will drive the lifting rod 8 to move upward. At the same time, it will drive the limiting post 7 to move through the inclined push block until the threaded block 9 can no longer move upward and the limiting post 7 is located below the threaded block 9. In this way, the upward movement of the lifting rod 8 will also stop. The upward movement of the lifting rod 8 will drive the rotating shaft block 13 to connect with the locking slot 20 through the locking block 21. In this way, the micro motor 10 will start working and rotate. When the micro motor 10 rotates, it will drive the cooling fan 11 to rotate. The rotation of the cooling fan 11 will dissipate heat and cool down the inside of the motor body 1 to prevent the internal temperature of the motor body 1 from being too high and thus damaging the permanent magnet motor.

[0056] Simultaneously, as the rotating shaft block 13 moves upward, it also drives the cleaning scraper 5 to contact the outer surface of the dust cover 2. When the micro motor 10 rotates, it drives the cleaning scraper 5 to clean the outer surface of the dust cover 2 through the rotating shaft block 13. At the same time, the rotating shaft block 13 also drives the cam column 14 to rotate together. When the cam column 14 rotates, it will periodically contact the push column 18 and drive the push column 18 to move. After the push column 18 moves a small distance into the second fixed box 16, the ventilation channel 22 in the push column 18 will be connected to the piston column 24 in the first extrusion chamber 23. In this way, the gas in the first extrusion chamber 23 will enter the second extrusion chamber 23 through the first one-way air inlet valve 26. In the second extrusion chamber, the piston plate 25 is pushed and the second extrusion spring is extruded. At the same time, when the push column 18 moves, it also drives the moving cleaning box 17 to move together. When the moving cleaning box 17 moves, it cleans the inner surface of the dust cover 2. At the same time, it also drives the piston block 36 to move in the piston chamber 34 through the gear assembly 35, so that the gas in the piston chamber 34 enters the first extrusion chamber 23 through the second one-way air inlet valve 28. Since the ventilation channel 22 is connected to the piston column 24, the gas entering the first extrusion chamber 23 from the piston chamber 34 will enter the second extrusion chamber through the first one-way air inlet valve 26, so that the air pressure in the second extrusion chamber will increase further.

[0057] When the cam column 14 begins to separate from the push column 18, the push column 18 will also lose the thrust of the cam column 14. The gas in the second extrusion chamber will return to the first extrusion chamber 23 through the pressure relief valve. Due to the function of the second one-way air inlet valve 28, the gas in the first extrusion chamber 23 cannot enter the connecting pipe 19. Thus, the gas will be close to the first extrusion chamber 23 and push the push column 18, causing the push column 18 to move away from the second fixed box 16 until the piston column 24 separates from the ventilation channel 22. Thus, the excess gas in the first extrusion chamber 23 will enter the mobile cleaning box 17 through the ventilation channel 22 and the ventilation chamber 29, and push the push plate 33 in the mobile cleaning box 17 downward. When the push plate 33 moves down, it will squeeze the first extrusion spring 30. At the same time, the push plate 33 will also blow the dust in the air inlet 4 out through the connecting through hole 31 to prevent the dust from blocking the air inlet 4 and facilitate the heat dissipation of the permanent magnet motor.

[0058] The movable cleaning box 17 moves repeatedly on the inner surface of the dust cover 2, which can remove the dust attached to the inner surface of the dust cover 2. At the same time, when the movable cleaning box 17 moves, it will remove the dust inside the air inlet 4 of the dust cover 2 through the gas, effectively preventing the dust from blocking the air inlet 4.

[0059] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent motor for a hoist, comprising a motor body, a dustproof cover plate and a protective shell arranged on the motor body, characterized in that: The dust cover is equipped with a lifting rod, a rotating assembly, and a cleaning assembly. The rotating assembly includes a pushing column, and the cleaning assembly includes a cleaning scraper and a movable cleaning box. When the lifting rod moves upward, it drives the rotating assembly to rotate and causes the cleaning scraper to contact the outer surface of the dust cover for cleaning. The rotation of the rotating assembly drives the movable cleaning box through the pushing column to clean the inner surface of the air inlet in the dust cover, and at the same time cleans the inside of the air inlet in the dust cover. The cleaning assembly also includes a first fixed box and a second fixed box, which are connected by a connecting pipe and a second one-way air inlet valve is provided in the connecting pipe. A ventilation channel is provided through the push column, and one end of the push column extends into the second fixed box, while the other end is connected to the ventilation channel in the movable cleaning box. The second fixed box has a first extrusion chamber and a second extrusion chamber. A first one-way air inlet valve and a pressure relief valve are provided between the first extrusion chamber and the second extrusion chamber. A piston column is fixedly installed in the first extrusion chamber and extends into the air passage. A second extrusion spring and a piston plate are provided in the second extrusion chamber. A fixing rod is fixedly installed in the inner cavity of the mobile cleaning box. A first compression spring and a push plate are respectively provided on the outer side of the fixing rod. The push plate is located below the ventilation channel. A connecting through hole is opened through the lower side of the mobile cleaning box. Gas pushes the push plate down, thereby pushing the air below the push plate through the connecting through hole to clean the air inlet. The first fixed box is provided with an adjustment chamber and a piston chamber. The adjustment chamber is provided with a gear assembly, and the piston chamber is provided with a piston block. The lower part of the movable cleaning box is meshed with the gear assembly, and the movable cleaning box drives the piston block to move in the piston chamber through the gear assembly.

2. The intelligent motor for the hoist according to claim 1, characterized in that: A threaded rod is provided on the main shaft of the motor body, and a threaded block is provided on the threaded rod. The sides of the threaded block are fixedly connected to the lifting rod. A limit post is provided in the protective shell. A matching inclined push block is provided on the same side of the threaded block and the limit post. After the threaded block moves upward, it drives the limit post to move through the inclined push block, and the limit post fixes the threaded block.

3. The intelligent motor for the hoist according to claim 1, characterized in that: The rotating assembly also includes a micro motor, on the output shaft of which a cooling fan and a connecting block are provided. A rotating shaft block is movably installed between two adjacent lifting rods, and a cam column and a snap-fit ​​block are respectively provided on the rotating shaft block.

4. The intelligent motor for the hoist according to claim 3, characterized in that: The connecting block has a snap-fit ​​groove that matches the snap-fit ​​block, and the cam column and the push column make periodic contact.

5. The intelligent motor for the hoist according to claim 1, characterized in that: An air intake channel is provided between the regulating chamber and the piston chamber, and a gap is left between the air intake channel and the piston block.

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