Intelligent speed reducer based on active noise reduction

Abstract

The intelligent speed reducer based on active noise reduction comprises a machine body, a machine cavity is formed in the machine body, an input shaft with a gear, a first gear, a worm wheel, a second rotating pipe and a threaded rod are rotationally connected to the inner wall of the machine cavity, a first rotating pipe is fixedly connected to the first gear, a worm is meshed with the worm wheel, and the worm is slidably connected to the inner wall of the first rotating pipe; the inner wall of the machine cavity is fixedly connected with a guide rod, the guide rod is slidably connected with a top strip, the top strip is in rolling connection with a ball, the top strip is provided with a threaded groove, the threaded rod is in threaded connection with the inner wall of the threaded groove, the outer wall of the machine body is rotatably connected with a large gear and a small gear, the large gear is fixedly connected with the threaded rod, and the small gear is fixedly connected with a rotating handle. The outer wall of the machine body is connected with a protection assembly. The inner wall of the machine cavity is connected with a limiting assembly and a transmission assembly. Under the condition that the machine shell is not disassembled, the meshing clearance of the worm and the worm wheel can be adjusted through external rotation operation, operation is easy and convenient, and maintenance time and cost are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of reducers, and in particular to an intelligent reducer based on active noise reduction. Background Art

[0002] Reducers are widely used in various mechanical transmission systems to reduce speed and increase torque. Worm gears are widely adopted due to their smooth transmission and self-locking properties. However, to ensure the stability of the meshing transmission between the worm gear and worm gear and to effectively reduce noise during operation, the gap between them is often adjusted.

[0003] Existing designs often suffer from a significant drawback: clearance adjustment requires disassembly of the reducer housing or multiple components. This not only increases the complexity of adjustment but also increases maintenance costs and time, severely impacting the efficiency and reliability of the equipment. Therefore, how to quickly adjust the clearance between the worm wheel and worm without disassembling the reducer has become a pressing technical challenge in this field. Summary of the Invention

[0004] In response to the above technical problems, the present invention aims to provide an intelligent reducer based on active noise reduction. To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An intelligent speed reducer based on active noise reduction includes a machine body, a machine cavity is provided on the machine body, and the inner wall of the machine cavity is rotatably connected to a gear input shaft, a first gear, a worm gear, a second rotating tube and a threaded rod.

[0006] The gear input shaft is meshed with gear one, and a rotating tube one is fixed on gear one, and the worm is meshed with the worm wheel, and the worm is slidably connected to the inner wall of rotating tube one, and the worm is connected to the inner wall of rotating tube one through spring one, and the worm is slidably connected to the inner wall of rotating tube two, and a guide rod is fixed on the inner wall of the machine cavity, and a top strip is slidably connected to the guide rod, and a ball is rollingly connected to the top strip, and the ball and the worm are against each other, and a threaded groove is provided on the top strip, and the threaded rod is threadedly connected to the inner wall of the threaded groove, and the outer wall of the machine body is rotatably connected to the large gear and the small gear, and the large gear and the threaded rod are fixed and rotate coaxially, and the large gear and the small gear are meshed, and the small gear is fixed with a turning handle, and the outer wall of the machine body is connected to a protective component, and the inner wall of the machine cavity is connected to a limiting component and a transmission component, and the transmission component extends to the outside of the machine body.

[0007] Preferably, the protection assembly includes a protection box and a sliding cover, the protection box is fixed to the outer wall of the body, the sliding cover is slidably connected to the outer wall of the body, and the sliding cover is connected to the outer wall of the body through a spring four.

[0008] Preferably, the limiting assembly includes a swivel and a connecting seat, the connecting seat is fixedly connected to the inner wall of the machine cavity, the swivel is rotatably connected to the inner wall of the connecting seat, two guide bars are fixedly connected to the inner wall of the swivel, a toothed anti-deflection block is slidably connected to the guide bars, the toothed anti-deflection block is connected to the inner wall of the swivel through a second spring, a permanent magnet is fixed to the toothed anti-deflection block, a toothed ring is fixedly connected to the worm, and the teeth on the toothed ring are adapted to the teeth on the toothed anti-deflection block;

[0009] The transmission assembly includes a permanent magnet ring and two transmission cylinders. The permanent magnet ring is slidably connected to the inner wall of the machine cavity. The inner wall of the cylinder cavity of the transmission cylinder is slidably connected to a piston bar. The piston bar is connected to the inner wall of the cylinder cavity through spring three. The two transmission cylinders are connected through an air pipe. The two ends of the air pipe are respectively connected to the two cylinder cavities. One of the transmission cylinders is fixedly connected to the inner wall of the machine cavity, and the piston bar in the machine cavity is fixedly connected to the permanent magnet ring. The other transmission cylinder is fixedly connected to the outer wall of the machine body.

[0010] Preferably, the bottom wall of the machine cavity is provided with a slope, the side wall of the machine cavity is provided with a groove, the outer wall of the machine body is provided with a recovery groove, the groove and the recovery groove are connected, the top wall and the bottom wall of the groove are inlaid with conductive strips, the two conductive strips are electrically connected to the power supply respectively, the inner wall of the groove is rotatably connected to a round part, a connecting rod is fixed on the round part, the upper end of the connecting rod extends into the machine cavity, the upper end of the connecting rod is fixed to gear 2, the permanent magnet ring is fixed with a rack, the rack and gear 2 are engaged, the top wall and the bottom wall of the round part are inlaid with conductive blocks, the bottom wall of the round part is provided with an adsorption groove, the inner wall of the adsorption groove is fixed with an electromagnet, and the two conductive blocks are electrically connected to the electromagnet respectively.

[0011] Preferably, a recovery box is slidably connected to the inner wall of the recovery tank.

[0012] Preferably, the protective box is connected to a locking portion 1, the sliding cover is connected to a locking portion 2, and the locking portion 1 and the locking portion 2 are adapted to each other.

[0013] Preferably, a handle is fixedly connected to the recovery box.

[0014] Preferably, the turning handle is provided with anti-slip grooves.

[0015] Preferably, a slide rail is fixedly connected to the recovery trough, and the recovery box is slidably connected to the slide rail.

[0016] Preferably, a noise detection device is provided in the machine cavity, and a wireless module is provided in the noise detection device.

[0017] The present invention has the following beneficial effects:

[0018] The meshing clearance between the worm and the worm wheel can be adjusted through external rotation without disassembling the casing, which is easy to operate and saves maintenance time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative effort.

[0020] Figure 1 This is a structural diagram of an intelligent reducer based on active noise reduction according to the present invention;

[0021] Figure 2 This is a front view of an intelligent reducer based on active noise reduction according to the present invention;

[0022] Figure 3 This invention Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This invention Figure 2 Enlarged view of point B in the middle;

[0024] Figure 5 This invention Figure 2 Enlarged view of point C in the middle;

[0025] Figure 6 This invention Figure 3 Enlarged view of point D in the middle;

[0026] Figure 7 This invention Figure 5 Schematic diagram of the structure of the conductive strip.

[0027] Figure 1: Body; 2: Geared input shaft; 3: Engine chamber; 4: Gear 1; 5: Rotating tube 1; 6: Worm; 7: Spring 1; 8: Worm wheel; 9: Geared ring; 10: Toothed anti-deflection block; 11: Guide bar; 12: Spring 2; 13: Permanent magnet; 14: Rotating ring; 15: Connecting seat; 16: Permanent magnet ring; 17: Transmission cylinder; 18: Piston bar; 19: Spring 3; 20: Air pipe; 21: Rotating tube 2; 22: , guide rod; 23, top bar; 24, ball bearing; 25, threaded groove; 26, threaded rod; 27, rack; 28, gear two; 29, connecting rod; 30, large gear; 31, small gear; 32, turning handle; 33, protective box; 34, sliding cover; 35, spring four; 36, conductive strip; 37, groove; 38, round part; 39, adsorption groove; 40, electromagnet; 41, conductive block; 42, recovery box; 43, recovery groove. DETAILED DESCRIPTION

[0028] 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.

[0029] In the description of the present invention, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] like Figure 1-Figure 7 As shown, an intelligent reducer based on active noise reduction includes a body 1, a machine cavity 3 is provided on the body 1, the inner wall of the machine cavity 3 is rotatably connected with a gear input shaft 2, a gear 1 4, a worm wheel 8, a rotating tube 21 and a threaded rod 26, the gear input shaft 2 is meshed with the gear 1 4, the gear 1 4 is fixed with a rotating tube 1 5, the worm 6 is meshed with the worm wheel 8, the worm 6 is slidably connected to the inner wall of the rotating tube 1 5, the worm 6 is connected to the inner wall of the rotating tube 1 5 through a spring 1 7, the worm 6 is slidably connected to the inner wall of the rotating tube 21, the inner wall of the machine cavity 3 is fixed with a guide rod 22, and the guide rod 22 is fixed with a guide rod 22. A top bar 23 is slidably connected to the top bar 23, on which a ball 24 is rollingly connected. The ball 24 and the worm 6 abut each other. A threaded groove 25 is formed on the top bar 23, and a threaded rod 26 is threadedly connected to the inner wall of the threaded groove 25. A large gear 30 and a small gear 31 are rotatably connected to the outer wall of the body 1. The large gear 30 and the threaded rod 26 are fixedly connected and rotate coaxially. The large gear 30 and the small gear 31 mesh. The small gear 31 is fixedly connected to the handle 32. The outer wall of the body 1 is connected to a protective assembly. The inner wall of the machine cavity 3 is connected to a limit assembly and a transmission assembly. The transmission assembly extends to the outside of the body 1. The ends of the worm 6 can be square prism-shaped to facilitate rotation with the rotating tube 1 5 and the rotating tube 2 21.

[0032] The housing 1 is die-cast from ADC12 aluminum alloy, reducing weight while maintaining overall strength, facilitating a compact design. The threaded rod 26 is preferably an M6 standard rod with a 1mm pitch and a length of 50mm. The threaded rod 26 and thread groove 25 are precision-machined to match. The large gear 30 has at least twice the number of teeth as the small gear 31, facilitating fine-tuning. The worm 6 is made of 40Cr material, heat-treated to HRC 48-52, ensuring wear resistance. The worm wheel 8 is made of aluminum bronze to improve its resistance to adhesive wear.

[0033] According to an optional embodiment of the present invention, the protective assembly includes a protective box 33 and a sliding cover 34. The protective box 33 is fixed to the outer wall of the body 1, and the sliding cover 34 is slidably connected to the outer wall of the body 1. The sliding cover 34 is connected to the outer wall of the body 1 via a spring 35. The protective box 33 and sliding cover 34 are used to protect the large gear 30 and the small gear 31.

[0034] According to an optional embodiment of the present invention, the limiting assembly includes a swivel 14 and a connecting seat 15, the connecting seat 15 is fixedly connected to the inner wall of the machine cavity 3, the swivel 14 is rotatably connected to the inner wall of the connecting seat 15, the inner wall of the swivel 14 is fixedly connected to two guide bars 11, and a toothed anti-deflection block 10 is slidably connected to the guide bar 11. The toothed anti-deflection block 10 is connected to the inner wall of the swivel 14 through a spring 2 12, and a permanent magnet 13 is fixed to the toothed anti-deflection block 10. A toothed ring 9 is fixedly connected to the worm 6, and the teeth on the toothed ring 9 are adapted to the teeth on the toothed anti-deflection block 10;

[0035] The transmission assembly includes a permanent magnet ring 16 and two transmission cylinders 17. The permanent magnet ring 16 is slidably connected to the inner wall of the machine cavity 3. The inner wall of the cylinder cavity of the transmission cylinder 17 is slidably connected with a piston bar 18. The piston bar 18 is connected to the inner wall of the cylinder cavity through a spring three 19. The two transmission cylinders 17 are connected by an air pipe 20. The two ends of the air pipe 20 are respectively connected to the two cylinder cavities. One of the transmission cylinders 17 is fixed to the inner wall of the machine cavity 3, and the piston bar 18 in the machine cavity 3 is fixed to the permanent magnet ring 16. The other transmission cylinder 17 is fixed to the outer wall of the machine body 1.

[0036] When the toothed ring 9 and the toothed anti-deviation block 10 engage with each other, the toothed ring 9 can drive the toothed anti-deviation block 10 to rotate.

[0037] According to an optional embodiment of the present invention, the bottom wall of the machine cavity 3 is provided with a slope, the side wall of the machine cavity 3 is provided with a groove 37, the outer wall of the machine body 1 is provided with a recovery groove 43, the groove 37 is connected to the recovery groove 43, the top and bottom walls of the groove 37 are inlaid with conductive strips 36, the two conductive strips 36 are respectively electrically connected to the power supply, the inner wall of the groove 37 is rotatably connected to a round piece 38, the round piece 38 is fixed with a connecting rod 29, the upper end of the connecting rod 29 extends into the machine cavity 3, the upper end of the connecting rod 29 is fixed with a gear 28, the permanent magnet ring 16 is fixed with a rack 27, the rack 27 and the gear 2 28 are engaged, the top and bottom walls of the circular piece 38 are inlaid with conductive blocks 41, the bottom wall of the circular piece 38 is provided with an adsorption groove 39, the inner wall of the adsorption groove 39 is fixed with an electromagnet 40, and the two conductive blocks 41 are respectively electrically connected to the electromagnet 40. The slope can make metal debris concentrate at the bottom of the slope. The suction force of the electromagnet 40 is preferably 8N, the working voltage is preferably 12V, and the working current is preferably no more than 0.5A to ensure the reliability of adsorbing metal debris.

[0038] According to an optional embodiment of the present invention, a recovery box 42 is slidably connected to the inner wall of the recovery tank 43, and the recovery box 42 can recover metal scraps.

[0039] According to an optional embodiment of the present invention, the protective box 33 is connected to a locking portion 1, and the sliding cover 34 is connected to a locking portion 2, and the locking portion 1 and the locking portion 2 are adapted to each other. The structures of the locking portion 1 and the locking portion 2 are implemented using existing technology and are not limited in detail here.

[0040] According to an optional embodiment of the present invention, a handle is fixedly connected to the recovery box 42 , and the handle facilitates the user to pull out the recovery box 42 .

[0041] According to an optional embodiment of the present invention, the throttle 32 is provided with anti-slip grooves, which can increase the friction between the user's hand and the throttle 32.

[0042] According to an optional embodiment of the present invention, a slide rail is fixedly connected to the recovery groove 43 , and the recovery box 42 is slidably connected to the slide rail, and the slide rail is used to guide and limit the sliding of the recovery box 42 .

[0043] According to an optional embodiment of the present invention, a noise detection device is provided in the machine cavity 3, and a wireless module is provided in the noise detection device. The noise detection device can detect the noise level in the machine cavity 3. When the noise is too loud, the wireless module can remotely send an alarm message to the terminal device.

[0044] Implementation process:

[0045] In the initial state, the sliding cover 34 is locked by the locking part 1 and the locking part 2 on the protective box 33 to prevent others or foreign objects from accidentally touching the handle 32 and causing damage to the small gear 31, the large gear 30, the worm 6, the worm wheel 8 and other transmission parts.

[0046] When the meshing clearance between the worm 6 and the worm wheel 8 needs to be adjusted, the locking part 1 and the locking part 2 are released, and the sliding cover 34 moves upward under the elastic force of the spring 4 35, so that the turning handle 32 is exposed to the outside world for user operation. After the sliding cover 34 moves upward, it pushes the piston bar 18 on the transmission cylinder 17 above it to overcome the elastic force and move upward. The piston bar 18 squeezes the air in the cylinder cavity and transmits it to the cylinder cavity of the other transmission cylinder 17 through the air pipe 20, thereby pushing the piston bar 18 to overcome the elastic force of the spring 3 19 and move right, pushing the permanent magnet ring 16 to move to the right wall of the connecting seat 15. At this time, the permanent magnet ring 16 is located in the same vertical plane of the two permanent magnets 13. Inside, the magnetic force of the permanent magnet ring 16 attracts the two permanent magnets 13, and the two toothed anti-deflection blocks 10 overcome the elastic force of spring 2 12 and move away from each other along the guide bar 11. The teeth on the toothed anti-deflection block 10 and the teeth on the toothed ring 9 are disengaged, thereby releasing the horizontal limit of the worm 6. The user can turn the handle 32, thereby driving the small gear 31, the large gear 30, and the threaded rod 26 to rotate. The rotation of the threaded rod 26 causes the top bar 23 to move horizontally, and the ball 24 pushes the worm 6 to slide horizontally. The spring 1 7 is deformed, thereby adjusting the meshing gap between the worm 6 and the worm wheel 8, improving the transmission stability and reducing the transmission noise.

[0047] Since the outer diameter of the small gear 31 is smaller than that of the large gear 30, the user can drive the large gear 30 to rotate more effortlessly. The small gear 31 rotates a larger angle to drive the large gear 30 to rotate a smaller angle, thereby achieving fine-tuning of the rotation angle of the large gear 30 and the threaded rod 26, and achieving micro-adjustment of the meshing gap between the worm 6 and the worm wheel 8, thereby improving the adjustment accuracy.

[0048] The two conductive blocks 41 are respectively against the two conductive strips 36 to form an electrical circuit, and the power supply supplies power to the electromagnet 40 to generate magnetic force. Since the worm 6 and the worm wheel 8 will wear and produce metal debris during the transmission process, the debris will slide along the inclined surface of the bottom wall of the machine cavity 3 to the bottom of the inclined surface, that is, the position below the electromagnet 40. The electromagnet 40 will attract the metal debris into the adsorption groove 39. When the permanent magnet ring 16 moves to the right, it will drive the rack 27 to move to the right. The rack 27 drives the gear 2 28, the connecting rod 29, and the round part 38 to rotate, so that the adsorption groove 39 rotates to above the recovery box 42. At this time, the two conductive blocks 41 rotate to disengage from the engagement with the two conductive strips 36 respectively, thereby breaking the circuit. The electromagnet 40 is powered off and loses its magnetic force. The metal debris falls into the recovery box 42 in the recovery groove 43 for recovery, completing the automatic cleaning of the metal debris.

[0049] After the adjustment is completed, the sliding cover 34 is moved downward to overcome the elastic force of the spring 4 35 so that the locking part 1 is locked with the locking part 2 again, and the small gear 31 and the large gear 30 are protected again. After the sliding cover 34 moves down, the piston bar 18 on the transmission cylinder 17 on the outer wall of the body 1 loses the push of the sliding cover 34, and the piston bar 18 moves downward and reset under the elastic force of spring three 19, thereby exhausting air through the air pipe 20. On the transmission cylinder 17 in the machine cavity 3, the gas in the cylinder cavity is exhausted, and the piston bar 18 moves left and reset under the elastic force of spring three 19, thereby driving the permanent magnet ring 16 and the rack 27 to move left and reset. After the permanent magnet 13 loses the magnetic force of the permanent magnet ring 16, the toothed anti-deflection block 10 moves toward the toothed ring 9 under the elastic force of spring two 12, and the teeth on the toothed anti-deflection block 10 and the teeth on the toothed ring 9 engage with each other, thereby limiting the worm 6 in the horizontal direction to prevent the elastic force of spring one 7 from being insufficient to limit the horizontal movement of the worm 6 when the body 1 vibrates, thereby aggravating the wear rate between the worm 6 and the worm wheel 8 and increasing the noise. The rack 27 drives the second gear 28 to rotate in the reverse direction, thereby causing the adsorption tank 39 to rotate back into the machine cavity 3 from above the recovery tank 43 .

[0050] The power supply for providing electric power to the electromagnet 40 may be normally on, or may be turned on when the gap between the worm 6 and the worm wheel 8 is adjusted.

[0051] When the machine body 1 is running, the gear input shaft 2 rotates, thereby driving the gear 1 4 to rotate, realizing the first stage of deceleration. The gear 1 4 drives the rotating tube 1 5, the worm 6, the rotating tube 2 21, and the gear ring 9 to rotate. The teeth and friction of the gear ring 9 drive the toothed anti-deflection block 10, the guide bar 11, and the rotating ring 14 to rotate. The worm 6 drives the worm wheel 8 to rotate to realize the second stage of deceleration. The worm wheel 8 and the output shaft rotate coaxially.

[0052] The present invention has the following beneficial effects:

[0053] By setting a linkage relationship between the turning handle 32, the small gear 31, the large gear 30 and the threaded rod 26, the user can adjust the meshing clearance between the worm 6 and the worm wheel 8 by external rotation operation without removing the housing, which is easy to operate and saves maintenance time and cost;

[0054] The outer diameter of the small gear 31 is smaller than that of the large gear 30. The structural design has a transmission ratio advantage, which makes the user more labor-saving when adjusting. At the same time, it can achieve angle fine-tuning, improve the accuracy of meshing clearance adjustment, effectively and actively reduce the meshing noise of the worm wheel 8 and the worm 8 transmission, and extend the service life of the equipment;

[0055] It is equipped with a toothed anti-deflection block 10, a toothed ring 9 and a permanent magnet 13. The limit release is achieved through magnetic control before adjustment, and the limit state is automatically restored after adjustment to ensure the stability of the worm 6 and avoid abnormal meshing or excessive wear caused by vibration;

[0056] Through the cooperation of the transmission cylinder 17, the air pipe 20, the piston bar 18, and the permanent magnet ring 16, a linkage control structure of the inner and outer cavities is realized. The opening of the sliding cover 34 can automatically complete the unlocking process of the limit assembly, thereby improving the operating efficiency and intelligent level.

[0057] An electromagnet 40, a conductive bar 36, a conductive block 41, an adsorption groove 39, a rack 27, a second gear 28 and a round piece 38 are provided to form a cleaning device for automatically collecting and transferring metal debris. The electromagnetic adsorption and demagnetization chip removal processes are clear, and the debris eventually falls into a recovery box 42 to prevent debris accumulation from affecting transmission.

[0058] The components, modules, mechanisms and devices not described in detail in the present invention are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An intelligent reducer based on active noise reduction, characterized in that: The gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear 2. The intelligent reducer based on active noise reduction according to claim 1 is characterized in that: The protection assembly includes a protection box and a sliding cover. The protection box is fixed to the outer wall of the body. The sliding cover is slidably connected to the outer wall of the body. The sliding cover is connected to the outer wall of the body through a spring four.

3. The intelligent reducer based on active noise reduction according to claim 2 is characterized in that: The limiting assembly includes a swivel and a connecting seat, the connecting seat is fixedly connected to the inner wall of the machine cavity, the swivel is rotatably connected to the inner wall of the connecting seat, two guide bars are fixedly connected to the inner wall of the swivel, a toothed anti-deflection block is slidably connected to the guide bars, the toothed anti-deflection block is connected to the inner wall of the swivel through a second spring, a permanent magnet is fixed to the toothed anti-deflection block, a toothed ring is fixedly connected to the worm, and the teeth on the toothed ring are adapted to the teeth on the toothed anti-deflection block; The transmission assembly includes a permanent magnet ring and two transmission cylinders. The permanent magnet ring is slidably connected to the inner wall of the machine cavity. The inner wall of the cylinder cavity of the transmission cylinder is slidably connected to a piston bar. The piston bar is connected to the inner wall of the cylinder cavity through spring three. The two transmission cylinders are connected through an air pipe. The two ends of the air pipe are respectively connected to the two cylinder cavities. One of the transmission cylinders is fixedly connected to the inner wall of the machine cavity, and the piston bar in the machine cavity is fixedly connected to the permanent magnet ring. The other transmission cylinder is fixedly connected to the outer wall of the machine body.

4. The intelligent reducer based on active noise reduction according to claim 3 is characterized in that: The bottom wall of the machine cavity is provided with an inclined surface, the side wall of the machine cavity is provided with a groove, the outer wall of the machine body is provided with a recovery groove, the groove and the recovery groove are connected, the top wall and the bottom wall of the groove are inlaid with conductive strips, the two conductive strips are electrically connected to the power supply respectively, the inner wall of the groove is rotatably connected to a round part, a connecting rod is fixed on the round part, the upper end of the connecting rod extends into the machine cavity, the upper end of the connecting rod is fixed to gear 2, the permanent magnet ring is fixed with a rack, the rack and gear 2 are engaged, the top wall and the bottom wall of the round part are inlaid with conductive blocks, the bottom wall of the round part is provided with an adsorption groove, the inner wall of the adsorption groove is fixed with an electromagnet, and the two conductive blocks are electrically connected to the electromagnet respectively.

5. The intelligent reducer based on active noise reduction according to claim 4 is characterized in that: The inner wall of the recovery tank is slidably connected with a recovery box.

6. The intelligent reducer based on active noise reduction according to claim 5 is characterized in that: The protection box is connected with a locking part 1, the sliding cover is connected with a locking part 2, and the locking part 1 and the locking part 2 are adapted to each other.

7. The intelligent reducer based on active noise reduction according to claim 6 is characterized in that: A pull handle is fixedly connected to the recovery box.

8. The intelligent reducer based on active noise reduction according to claim 7 is characterized in that: The turning handle is provided with anti-slip grooves.

9. The intelligent reducer based on active noise reduction according to claim 8 is characterized in that: A slide rail is fixedly connected to the recovery trough, and the recovery box is slidably connected to the slide rail.

10. An intelligent reducer based on active noise reduction according to any one of claims 1 to 9, characterized in that: A noise detection device is provided in the machine cavity, and a wireless module is provided in the noise detection device.

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