Intelligent motor for lifting machine

Abstract

The invention relates to the technical field of motors, and discloses an intelligent motor for a lifting machine, the intelligent motor comprises a motor body, a dustproof cover plate and a protective shell are arranged on the motor body, a lifting rod, a rotating assembly and a cleaning assembly are arranged in the dustproof cover plate, and the cleaning assembly comprises a cleaning scraping rod and a movable cleaning box. The cleaning scraping rod cleans 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 meanwhile the interior of the air inlet hole in the dustproof cover plate is cleaned. The movable cleaning box cleans the inner side and the interior of the air inlet hole, the two parts cooperate with each other, dust is prevented from entering the motor body through the air inlet hole in all directions, a stator, a rotor and other key components in the motor are effectively protected, the problems of abrasion, short circuit and the like caused by dust are reduced, and the reliability and durability of the motor are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to an intelligent motor for a hoist. Background Art

[0002] In modern industrial production, hydraulic lifts are widely used in many fields such as automobile maintenance, logistics loading and unloading, and aerial operations. Hydraulic lifts play a vital role in all walks of life. Permanent magnet motors are the core power components of hydraulic lifts. Due to their advantages such as high efficiency, power factor and wide speed regulation 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 in a timely and effective manner, the excessively high temperature will cause the permanent magnets inside the motor to demagnetize, reduce the performance of the motor, and even cause damage to the motor. Therefore, a fan is generally installed inside the permanent magnet motor for heat dissipation. However, when the fan is performing heat dissipation work, dust and other impurities in the air can easily enter the motor through the air intake of the motor. After the permanent magnet motor has been used for a long time, the air intake is easily blocked by dust and other impurities, which can easily lead to a decrease in the heat dissipation effect of the permanent magnet motor and affect the normal operation of the motor. This requires frequent cleaning of the dust at the air intake. Generally, a cleaning cloth is used to clean the outer surface of the air intake in the permanent magnet motor, but this cleaning method cannot ensure that the dust inside the air intake and the dust on the side of the air intake close to the motor cavity are removed. Summary of the Invention

[0004] The object of the present invention is to provide an intelligent motor for a lift to solve the problems raised in the above background technology.

[0005] Technical Solution The present invention provides the following technical solutions: an intelligent motor for a lift, comprising a motor body, a dust cover and a protective shell provided on the motor body, a lifting rod, a rotating assembly and a cleaning assembly provided in the dust cover, the rotating assembly including a pushing column, 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 to clean the outer surface of the dust cover, the rotating assembly rotates and drives the movable cleaning box to clean the inner surface of the air inlet hole in the dust cover through the pushing column, and at the same time cleans the inside of the air inlet hole in the dust cover.

[0006] Preferably, a threaded rod is provided on the main shaft of the motor body, a threaded block is provided on the threaded rod, the sides of the threaded block are fixedly connected to the lifting rod, a limiting column is provided in the protective shell, and matching oblique push blocks are provided on the same side of the threaded block and the limiting column. After the threaded block moves upward, the limiting column is driven to move by the oblique push block, and the threaded block is fixed by the limiting column.

[0007] Preferably, the rotating assembly further comprises a micro motor, a cooling fan and a connecting block are provided on the output shaft of the micro motor, a rotating shaft block is movably installed between two adjacent lifting rods, and a cam column and a clamping block are respectively provided on the rotating shaft block.

[0008] Preferably, a clamping groove matching the clamping block is provided on the connecting block, and the cam column and the pushing column are in periodic contact.

[0009] Preferably, the cleaning assembly also includes a first fixed box and a second fixed box, the first fixed box and the second fixed box are connected through a connecting pipe, and a second one-way air inlet valve is provided in the connecting pipe, a ventilation channel is opened through the push column, and one end of the push column extends into the second fixed box, and the other end is connected to the ventilation cavity in the cleaning movable box.

[0010] Preferably, a first extrusion chamber and a second extrusion chamber are provided in the second fixed box, a first one-way air intake 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, the piston column extends into the ventilation channel, and a second extrusion spring and a piston plate are provided in the second extrusion chamber.

[0011] Preferably, a fixing rod is fixedly installed in the inner cavity of the mobile cleaning box, and a first extrusion spring and a push plate are respectively provided on the outside of the fixing rod. The push plate is located below the ventilation cavity, and a connecting through hole is opened through the lower side of the mobile cleaning box. The gas pushes the push plate down, thereby pushing the air below the push plate through the connecting through hole to clean the air inlet hole.

[0012] Preferably, the first fixed box is provided with an adjusting chamber and a piston chamber, the adjusting chamber is provided with a gear assembly, the piston chamber is provided with a piston block, the bottom 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.

[0013] Preferably, an air intake passage is provided between the regulating chamber and the piston chamber, and a gap is left between the air intake passage and the piston block.

[0014] Beneficial effects Compared with the prior art, the present invention provides an intelligent motor for a lift, which has the following beneficial effects: 1. In the present invention, the outer surface of the air inlet hole in the dust cover can be cleaned by the cleaning scraper, and the inner side and interior of the air inlet hole can be cleaned by the mobile cleaning box. The two cooperate with each other to prevent dust from entering the motor body through the air inlet hole in all directions, effectively protecting the stator, rotor and other key components inside the motor, reducing wear and short circuit problems caused by dust, and further improving the reliability and durability of the motor.

[0015] 2. In the present 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 mobile cleaning box, the push plate is pushed down, and the dust on the inside of the dust cover and the air inlet is blown to the outside through the connecting through hole. The power of the gas is used to effectively clean the dust, prevent the dust from clogging the air inlet, and ensure that the heat dissipation channel of the motor is unobstructed.

[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0017] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial cross-sectional view of the front of the motor body of the present invention; Figure 3 This is a cross-sectional view of the protective shell of the present invention; Figure 4 This is a first perspective view of the cross-section of the dust cover of the present invention; Figure 5 This is a second perspective of the cross-section of the dust cover of the present invention; Figure 6 This is a schematic diagram of the working of the cam column and the push column of the present invention; Figure 7 This is a cross-sectional view of the connection between the push column and the second fixing box of the present invention; Figure 8 This is a cross-sectional view of the connection between the push column and the mobile cleaning box of the present invention; Figure 9 A cross-sectional view of the mobile cleaning box of the present invention; Figure 10This is a schematic diagram of the piston block being pushed by the gear assembly in the first fixed box when the mobile cleaning box moves according to the present invention.

[0020] Description of reference numerals: In the figure: 1. Motor body; 2. Dust cover; 3. Protective shell; 4. Air inlet; 5. Cleaning scraper; 6. Threaded rod; 7. Limiting column; 8. Lifting rod; 9. Threaded block; 10. Micro motor; 11. Cooling fan; 12. Connecting block; 13. Rotating shaft block; 14. Cam column; 15. First fixed box; 16. Second fixed box; 17. Mobile cleaning box; 18. Push column; 19. Connecting pipe; 20. Clamping groove; 21. Clamping block; 22. Ventilation channel; 23. First extrusion chamber; 24. Piston column; 25. Piston plate; 26. First one-way air inlet valve; 27. Pressure relief valve; 28. Second one-way air inlet valve; 29. ​​Ventilation channel; 30. First extrusion spring; 31. Connecting through hole; 32. Fixed rod; 33. Push plate; 34. Piston chamber; 35. Gear assembly; 36. Piston block; 37. Air inlet channel. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example: See also Figures 1-10 The present invention provides a technical solution: an intelligent motor for a lift, comprising a motor body 1, wherein the motor body 1 is provided with a main shaft, a stator and a rotor, a dust cover 2 is connected to the lower part of the motor body 1 by bolts, and a protective shell 3 is connected to the upper part of the motor body 1 by bolts, a lifting rod 8, a rotating assembly and a cleaning assembly are provided in the dust cover 2, the lifting rod 8 passes through the stator and does not contact the rotor, the rotating assembly includes a pushing 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 drives the cleaning scraper 5 to contact the outer surface of the dust cover 2 to clean the outer surface of the dust cover 2. The rotating assembly rotates and drives the mobile cleaning box 17 to clean the inner surface of the air inlet 4 in the dust cover 2 through the pushing column 18, and at the same time cleans the inside of the air inlet 4 in the dust cover 2.

[0023] A PLC liquid crystal display panel and a face recognition and fingerprint recognition control system can be installed on the outside of the motor body 1. The PLC liquid crystal display panel can achieve human-machine interface exchange, and the face recognition and fingerprint recognition control system can achieve remote control and intelligent control of the permanent magnet motor.

[0024] Intelligent control permanent magnet motors have low noise, about 5-10dB (A) lower than conventional motors; intelligent control permanent magnet motors have soft start devices, low starting current and low voltage drop; intelligent control permanent magnet motors have large starting torque and will not have poor starting phenomena; intelligent control permanent magnet motors have high efficiency, high power factor, and good energy saving effect, which is 10% higher than conventional motors; intelligent control permanent magnet motors are small in size and light in weight, which is about 50% lower than the original motors of the same power.

[0025] See also 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 of the main shaft of the motor body 1. 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 simultaneously drive the threaded block 9 to move upward. When the threaded block 9 moves up one end 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 column 7 moves below the threaded block 9 to limit the threaded block 9. The system ensures that the position of the threaded block 9 does not move and is fixed. A limiting column 7 is provided in the protective shell 3. The threaded block 9 and the limiting column 7 are provided with mutually matching oblique push blocks on the same side of the threaded block 9 and the limiting column 7. At the same time, the mutually matching oblique push blocks on the same side of the threaded block 9 and the limiting column 7 are both located in the inner wall of the protective shell 3 and move. After the threaded block 9 moves up, the limiting column 7 is driven to move by the oblique push block, and the threaded block 9 is fixed by the limiting column 7. The upward movement of the threaded block 9 will prompt the limiting column 7 to move toward the side of the threaded block 9 through the mutually matching oblique push blocks.

[0026] The cooling fan 11 is linked to the micro motor 10. When the lifting rod 8 moves upward to connect the clamping block 21 of the rotating shaft block 13 with the clamping groove 20 of the connecting block 12, the micro motor 10 starts, driving the cooling fan 11 to extract air from the motor body 1 to dissipate heat. This can effectively reduce the temperature inside 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 the maintenance cost and downtime caused by overheating failures, and improve the working efficiency of the hydraulic lift.

[0027] See also Figure 4 、 Figure 5In this embodiment, the rotating assembly also includes a micro motor 10, which is fixedly mounted on the opening 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. At the same time, the rotating shaft block 13 is located below the micro motor 10. A cam column 14 is fixedly mounted below the rotating shaft block 13, and the bottom of the cam column 14 is fixedly connected to the cleaning scraper 5. A clamping block 21 is fixedly mounted above the rotating shaft block 13.

[0028] In this embodiment, a snap-in groove 20 matching the snap-in block 21 is provided on the connecting block 12. When the lifting rod 8 moves upward, the snap-in block 21 on the rotating shaft block 13 is driven to connect with the snap-in groove 20 in the connecting block 12. In this way, the micro motor 10 will drive the rotating shaft block 13 to rotate together when it rotates. When the rotating shaft 13 rotates, it can drive the cam column 14 and the cleaning scraper 5 to rotate together, and the cam column 14 and the push column 18 are in periodic contact.

[0029] A contact module is provided in the snap-in slot 20. Only when the snap-in block 21 is connected to the snap-in slot 20, the micro motor 10 will work, driving the cooling fan 11 to extract air and dissipate heat from the motor body 1, and driving the mobile cleaning box 17 and the cleaning scraper 5 to clean the sides and interior of the air inlet 4, preventing external dust from entering the motor body 1 and increasing the service life of the motor.

[0030] By installing a contact module in the snap-in slot 20, the micromotor 10 only starts operating when the snap-in block 21 is connected to the slot 20, driving the cooling fan 11 to dissipate heat and the cleaning component to operate. This intelligent control design links the cleaning action with the motor's operating status, eliminating the need for additional manual operation. Cleaning and heat dissipation are automatically completed when the motor starts, improving the device's automation and intelligence level while reducing maintenance costs.

[0031] The cleaning scraper 5 can clean the outer surface of the air inlet 4 in the dust cover 2, and the mobile cleaning box 17 can clean the inner side of the air inlet 4, so as to prevent the cleaning scraper 5 from being unable to clean the dust after the dust passes through the air inlet 4.

[0032] See also Figure 5-10In this embodiment, the cleaning assembly further includes a first fixed box 15 and a second fixed box 16. The first fixed box 15 and the second fixed box 16 are both fixedly mounted on the inner side of the dust cover 2 and do not contact the air inlet 4. The first fixed box 15 and the second fixed box 16 are connected through a connecting pipe 19, and a second one-way air inlet valve 28 is installed in the connecting pipe 19. The gas in the piston chamber 34 enters the second fixed box 16 through the second one-way air inlet valve 28, while the squeezed gas in the second fixed box 16 cannot pass through the second one-way air inlet valve 28. 8 leads to the piston chamber 34, the connecting pipe 19 and the piston chamber 34 are communicated with each other, a ventilation channel 22 is opened 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 does not start working, the ventilation channel 22 and the first extrusion chamber 23 are communicated with each other, and the other end of the ventilation channel 22 is communicated with the ventilation cavity 29 in the cleaning movable box 17. When the ventilation channel 22 is squeezed by the gas, it will quickly pass through the ventilation cavity 29 into the movable cleaning box 17 and quickly push the push plate 33.

[0033] In this embodiment, a first extrusion chamber 23 and a second extrusion chamber are provided in the second fixed box 16, and a first one-way air inlet valve 26 and a pressure relief valve 27 are provided between the first extrusion chamber 23 and the second extrusion chamber. A piston column 24 is fixedly installed in the first extrusion chamber 23, and the cross section of the piston column 24 is equal to the cross section of the ventilation channel 22, that is, the piston column 24 enters the ventilation channel 22, and the ventilation channel 22 can be blocked. When the piston column 24 extends into the ventilation channel 22, the push column 18 will squeeze the gas in the first extrusion chamber 23 and enter the second extrusion chamber through the first one-way air inlet valve 26. The second extrusion chamber is provided with a second extrusion spring and a piston plate 25, which will squeeze the active The plug plate 25 pushes and acts on the second extrusion spring. When the push column 18 cannot move in the second fixed box 16, that is, the cam column 14 pushes the push column 18 to the maximum distance, the cam column 14 will be in contact with the push column 18 and will be separated. At this time, the pressure relief valve 27 will open, and the squeezed gas will be released by the elastic force of the second extrusion spring, and quickly return to the first extrusion chamber 23 through the pressure relief valve 27, and will prompt the push column 18 to move outward from the second fixed box 16 until the piston column 24 and the push column 18 ventilation channel 22 are separated from each other, so that the excess gas will flow into the movable cleaning box 17 through the ventilation channel 22 and the ventilation cavity 29.

[0034] The piston plate 25 is located above the first one-way air inlet valve 26 and the pressure relief valve 27. The first one-way air inlet valve 26 facilitates the gas in the first extrusion chamber 23 to enter the second extrusion chamber, and the pressure relief valve 27 facilitates the gas in the second extrusion chamber to quickly enter the first extrusion chamber 23. The extrusion push column 18 drives the mobile cleaning box 17 to clean the inner surface and interior of the air inlet hole 4.

[0035] In this embodiment, a fixing rod 32 is fixedly installed in the inner cavity of the mobile cleaning box 17, and a first extrusion spring 30 and a pushing plate 33 are respectively provided on the outer side of the fixing rod 32. The first extrusion spring 30 is fixedly installed below the pushing plate 33. At the same time, the first extrusion spring 30 does not contact the connecting channel 31. The pushing plate 33 is located below the ventilation cavity 29. The pushing plate 33 divides the inner cavity of the mobile cleaning box 17 into two parts, the upper and lower parts are not connected to each other. When the pushing plate 33 is squeezed by the gas from the ventilation cavity 29, the pushing plate 33 will be pressed down quickly, thereby blowing the dust on the inner side of the dust cover 2 and the air inlet 4 to the outside of the dust cover 2 through the connecting through hole 31. A connecting through hole 31 is opened through the lower side of the mobile cleaning box 17. The gas pushes the pushing plate 33 to descend, thereby pushing the air below the pushing plate 33 to clean the air inlet 4 through the connecting through hole 31.

[0036] The connecting through holes 31 and the air inlet holes 4 are distributed in a one-to-one correspondence.

[0037] After the cam column 14 is separated from the push block 18, the gas in the second extrusion chamber enters the first extrusion chamber 23 through the pressure relief valve 27. Due to the coordinated use 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 block 18. These gases will quickly pass through the ventilation channel 22 and the ventilation cavity 29 to impact the push plate 33. After the push plate 33 is impacted, the gas in the push plate 33 will be quickly discharged through the connecting channel 37 and the air inlet hole 4, thereby discharging the dust inside the air inlet hole 4.

[0038] In this embodiment, an adjusting chamber and a piston chamber 34 are provided in the first fixed box 15, a gear assembly 35 is provided in the adjusting chamber, a piston block 36 is provided in the piston chamber 34, and the movable cleaning box 17 is meshed with the gear assembly at the bottom, and the movable cleaning box 17 drives the piston block 36 to move in the piston chamber 34 through the gear assembly 35.

[0039] 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 the rotating gears are meshed with the rack plate. Racks matching the rotating gears are provided on the upper and lower sides of the rack plate. Rack columns are fixedly installed at the lower end of the mobile cleaning box 17 and the upper end side of the piston block 36. The rack columns are meshed with the rotating gears. When the mobile cleaning box 17 moves, the piston block 36 will be driven to move together through the rack column and the gear assembly 35, and the moving direction and distance of the mobile cleaning box 17 and the piston block 36 are the same.

[0040] In this embodiment, an air intake channel 37 is provided between the regulating chamber and the piston chamber 34, and a gap is left between the air intake channel 37 and the piston block 36. When the mobile cleaning box 17 moves toward the side of the second fixed box 16, the mobile cleaning box 17 will drive the piston block 36 to move in the piston chamber 34 through the gear assembly 35. 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 mobile cleaning box 17 moves away from the side of the second fixed box 16, the mobile cleaning box 17 will also drive the piston block 36 in the piston chamber 34 through the gear assembly. When the moving action of the mobile cleaning box 17 is completed, the piston chamber 34 will be refilled with air through the air intake channel 37 to prevent the next movement of the piston block 36 from being unable to push the gas into the first extrusion chamber 23 through the second one-way air intake valve 28.

[0041] During movement, the mobile cleaning box 17 drives the piston block 36 within the piston chamber 34 via the gear assembly 35, enabling gas to circulate between the piston chamber 34 and the second fixed box 16. As the mobile cleaning box 17 moves toward the second fixed box 16, gas in the piston chamber 34 enters the second fixed box 16. As the mobile cleaning box 17 moves away, the piston chamber 34 is refilled with air through the air inlet channel 37, providing power for the next gas push. This ensures the continuous and stable operation of the entire cleaning and gas circulation system, guaranteeing a consistent and stable cleaning effect.

[0042] The working principle of this embodiment is as follows: during use, when the hydraulic lift starts working, the permanent magnet motor will also work, and the main shaft inside the permanent magnet motor will rotate first. When the main shaft rotates, it will drive the threaded rod 9 to rotate. When the threaded rod 9 rotates, it will drive the lifting rod 8 to move upward. At the same time, it will drive the limit column 7 to move through the oblique push block until the threaded block 9 can no longer move upward and the limit column 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 clamping groove 20 through the clamping block 21, so that the micro motor 10 will work 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 the inside of the motor body 1 to avoid high temperature inside the motor body 1, thereby damaging the permanent magnet motor.

[0043] At the same time, when the rotating shaft block 13 moves upward, it will also drive the cleaning hanging rod 5 to contact the outer surface of the dust cover 2. When the micro motor 10 rotates, the cleaning scraper 5 will be driven by the rotating shaft block 13 to clean the outer surface of the dust cover 2. At the same time, the rotating shaft block 13 will also drive 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. When the push column 18 moves a short 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, so that the gas in the first extrusion chamber 23 will enter the second extrusion chamber 23 through the first one-way air inlet valve 26. The second extrusion chamber pushes the piston plate 25 and squeezes the second extrusion spring. At the same time, the push column 18 also drives the mobile cleaning box 17 to move together when moving. The mobile cleaning box 17 cleans the inner surface of the dust cover 2 when moving. At the same time, it 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 intake valve 28. Due to the mutual connection between the ventilation channel 22 and 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 intake valve 26, thereby further increasing the air pressure in the second extrusion chamber. 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, and 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, so that the gas will be in the first extrusion chamber 23 at a close distance, and push the push column 18, so that the push column 18 is away from the second fixed box 16, until the piston column 24 is separated from the ventilation channel 22. In this way, the excess gas in the first extrusion chamber 23 will enter the movable cleaning box 17 through the ventilation channel 22 and the ventilation cavity 29, and push the push plate 33 in the movable cleaning box 17 downward. When the push plate 33 moves downward, 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 outward through the connecting through hole 31 to prevent the dust from blocking the air inlet 4, thereby facilitating the heat dissipation of the permanent magnet motor. The mobile cleaning box 17 moves repeatedly on the inner surface of the dustproof cover 2 to remove the dust attached to the inner surface of the dustproof cover 2. At the same time, when the mobile cleaning box 17 moves, the dust inside the air inlet 4 of the dustproof cover 2 is removed by gas, effectively preventing dust from blocking the air inlet 4.

[0044] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An intelligent motor for a lift, comprising a motor body, a dust cover and a protective shell provided on the motor body, characterized in that: The dust cover is provided 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 rod and a movable cleaning box. When the lifting rod moves upward, it drives the rotating assembly to rotate, and drives the cleaning scraper rod to contact the outer surface of the dust cover to clean the outer surface of the dust cover. The rotation of the rotating assembly drives the movable cleaning box to clean the inner surface of the air inlet hole in the dust cover through the pushing column, and at the same time cleans the inside of the air inlet hole in the dust cover.

2. The intelligent motor for a lift 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 limiting column is provided in the protective shell, and matching oblique push blocks are provided on the same side of the threaded block and the limiting column. After the threaded block moves upward, the limiting column is driven to move by the oblique push block, and the threaded block is fixed by the limiting column.

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

4. The intelligent motor for a lift according to claim 3, characterized in that: The connecting block is provided with a clamping groove that matches the clamping block, and the cam column and the pushing column are in periodic contact.

5. The intelligent motor for a lift according to claim 1, characterized in that: The cleaning assembly also includes a first fixed box and a second fixed box, the first fixed box and the second fixed box are connected through a connecting pipe, and a second one-way air inlet valve is provided in the connecting pipe, a ventilation channel is opened through the push column, and one end of the push column extends into the second fixed box, and the other end is connected to the ventilation cavity in the cleaning movable box.

6. The intelligent motor for a lift according to claim 5, characterized in that: A first extrusion chamber and a second extrusion chamber are provided in the second fixed box, a first one-way air intake 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 the piston column extends into the ventilation channel, and a second extrusion spring and a piston plate are provided in the second extrusion chamber.

7. The intelligent motor for a lift according to claim 5, characterized in that: A fixing rod is fixedly installed in the inner cavity of the mobile cleaning box, and a first extrusion spring and a push plate are respectively provided on the outside of the fixing rod. The push plate is located below the ventilation cavity. A connecting through hole is opened through the lower side of the mobile cleaning box. The gas pushes the push plate down, thereby pushing the air below the push plate through the connecting through hole to clean the air inlet hole.

8. The intelligent motor for a lift according to claim 5, characterized in that: The first fixed box is provided with an adjusting chamber and a piston chamber, the adjusting chamber is provided with a gear assembly, the piston chamber is provided with a piston block, the bottom of the mobile cleaning box is meshed with the gear assembly, and the mobile cleaning box drives the piston block to move in the piston chamber through the gear assembly.

9. The intelligent motor for a lift according to claim 8, characterized in that: An air intake passage is provided between the regulating chamber and the piston chamber, and a gap is left between the air intake passage and the piston block.

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