Single-shaft bidirectional rotary dust removal mechanism
By using a single-axis bidirectional rotating dust removal mechanism, which utilizes the counter-rotation of the upper and lower main rotors and cross-blowing, the limitations of existing equipment in terms of cleaning range and product displacement are solved, achieving efficient and low-cost dust removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SIRUI ELECTRONIC EQUIPMENT CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-03
Smart Images

Figure CN224443990U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of non-contact dust removal and cleaning technology, and in particular to a single-axis bidirectional rotary dust removal mechanism. Background Technology
[0002] In the current field of non-contact dust removal and cleaning technology, with the rapid development of precision manufacturing, high-speed automated integrated production lines, and the research and development of mid-to-high-end materials, factory production equipment is increasingly moving towards high integration and intelligence, which has led to a sharp increase in demand for non-contact cleaning equipment. However, existing cleaning equipment on the market has many drawbacks. For example, common dust removal core components are mostly fixed-installed air guns, nozzles, or air knives, and their cleaning range is often limited to a narrow line, a circle, or a small point.
[0003] Taking the existing technology of setting up a blowing dust removal mechanism on a rotating tray as an example:
[0004] When the rotating tray rotates at a high speed, turbulence occurs in the blowing dust removal mechanism, and the air pressure can cause the product to shift. When the rotating tray rotates at a low speed, the cleaning effect is poor. In addition, this solution also has the technical problem of a single cleaning angle. These problems can only be solved by increasing the number of rotating trays. However, increasing the number of rotating trays will increase the length of the entire dust removal equipment, increase production costs, waste energy, and occupy a large space, which cannot meet the modern demand for high-efficiency and low-cost production.
[0005] Therefore, it is necessary to set up a rotating mechanism that can rotate forward and reverse on a single spindle based on existing technology to achieve cross-blowing dust removal, prevent the product from shifting during the cleaning process, and improve the cleaning effect. In addition, the single-axis design can also reduce the space occupied by the equipment and the energy consumption of operation. Utility Model Content
[0006] To overcome the shortcomings mentioned above, this utility model provides a technical solution that can solve the above problems.
[0007] A single-axis bidirectional rotary dust removal mechanism includes a central rotary shaft;
[0008] The lower main rotor is fixedly mounted on the central rotating shaft, and the upper main rotor is rotatably mounted on the outer side of the central rotating shaft.
[0009] A reversing mechanism is installed between the upper main rotor and the lower main rotor, and the rotation directions of the upper main rotor and the lower main rotor are opposite.
[0010] One or more cleaning devices are fixedly installed on the outer periphery of both the upper and lower main rotors.
[0011] Furthermore: the cleaning device includes a sub-rotor and a jet assembly, the sub-rotor being fixedly installed on the outer periphery of the upper main rotor and the lower main rotor, and the jet assembly being fixedly installed on the sub-rotor.
[0012] Furthermore, an airflow speed-increasing cylinder is formed on the jet assembly of the upper main rotor peripheral cleaning device.
[0013] Furthermore, the lower end of the jet assembly is connected to a nozzle, the nozzle having an inclination angle of 0 to 30°.
[0014] Furthermore, the central rotating shaft is a hollow structure, and a high-speed rotary joint is connected to the upper end of the central rotating shaft. The high-speed rotary joint supplies air to the cleaning devices of the upper and lower main rotors through the central rotating shaft.
[0015] Furthermore, a power assembly is provided at the upper end of the central rotating shaft, which drives the central rotating shaft to rotate.
[0016] Compared with the prior art, this utility model uses a reversing mechanism to change the rotation mode of the upper main rotor, so that the rotation direction of the upper main rotor is opposite to that of the lower main rotor. This allows the cleaning devices on the outer periphery of the upper and lower main rotors to be at different blowing angles for dust removal, thereby improving the dust removal effect.
[0017] The main difference between this invention and the prior art is that the existing technology can only rotate in one direction, and there is no direct wind force on the opposite side, making it difficult to remove dust from these areas. Moreover, because it rotates in one direction, the workpiece will also be blown away by the rotating wind force, causing the product to shift during the dust removal process. The cleaning effect is far less than that of cleaning with bidirectional rotation. The solution of this invention sprays high-pressure air onto the surface of the product through bidirectional rotation, forming a shearing force to remove dust. At the same time, the thrust generated by the bidirectional wind force on the product will cancel each other out, preventing the product from shifting.
[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;
[0022] Figure 3 yes Figure 2 A magnified structural diagram at point A;
[0023] Figure 4 yes Figure 2 A magnified structural diagram at point B;
[0024] Figure 5 This is a schematic diagram of the outer peripheral jet assembly of the upper main rotor;
[0025] Figure 6 This is a schematic diagram of the outer peripheral jet assembly of the lower main rotor;
[0026] Figure 7 This is a structural schematic diagram of the present invention when applied to the upper conveyor assembly and the lower conveyor assembly;
[0027] Figure 8 yes Figure 7 Front view structural diagram;
[0028] Figure 9 This is a structural diagram of the product when it undergoes dust removal through the upper and lower sections of this utility model.
[0029] Figure 10 This is a schematic diagram of the installation position structure of this utility model within the upper conveyor assembly.
[0030] The diagram shows: 1. Central rotating shaft; 2. Lower main rotor; 3. Upper main rotor; 4. Reversing mechanism; 41. First gear; 42. Second gear; 43. Gearbox; 44. Reversing gear; 5. Split rotor; 6. Jet assembly; 7. High-speed rotary joint; 8. Upper positioning cylinder; 9. Upper air port; 10. First annular groove; 11. Upper nozzle; 12. Upper sealing groove; 13. Upper sealing ring; 14. Lower positioning cylinder; 15. Lower air port; 16. Second annular groove; 17. Lower nozzle; 18. Lower sealing groove; 19. Lower sealing ring; 20. Airflow speed-increasing cylinder; 21. First nozzle; 22. Second nozzle; 23. Right-angle quick-connect fitting; 24. Conical pressure cylinder; 25. Inclined surface; 26. Snap ring; 27. Power assembly; 28. Synchronous pulley; 29. Upper conveyor assembly; 30. Lower conveyor assembly; 31. Product. Detailed Implementation
[0031] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0032] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0033] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0036] Example 1: As Figure 1 , Figure 2 , Figure 5 , Figure 7 As shown, a single-axis bidirectional rotary dust removal mechanism includes a central rotary shaft 1;
[0037] The lower main rotor 2 is fixedly installed on the central rotating shaft 1, and the upper main rotor 3 is rotatably installed on the outer side of the central rotating shaft 1.
[0038] A reversing mechanism 4 is installed between the upper main rotor 3 and the lower main rotor 2, and the rotation directions of the upper main rotor 3 and the lower main rotor 2 are opposite.
[0039] One or more cleaning devices are fixedly installed on the outer periphery of both the upper main rotor 3 and the lower main rotor 2.
[0040] The principle is as follows: the upper main rotor 3 and the lower main rotor 2, which rotate in opposite directions, drive the cleaning device to rotate, and the rotation direction is changed through the reversing mechanism 4. Since the upper and lower cleaning devices rotate in opposite directions, and the cleaning device has a water flushing structure or a blowing structure, the two rotating cleaning devices will form a layered dust removal structure to ensure the dust removal effect on the surface of product 31.
[0041] Furthermore: the cleaning device includes a sub-rotor 5 and a jet assembly 6. The sub-rotor 5 is fixedly installed on the outer periphery of the upper main rotor 3 and the lower main rotor 2, and the jet assembly 6 is fixedly installed on the sub-rotor 5. The jet assembly 6 can be used to rotate and spray air on the product 31 to achieve the technical effect of quickly raising and removing dust.
[0042] Furthermore, the jet assembly 6 of the outer peripheral cleaning device of the upper main rotor 3 is formed with an airflow speed-increasing cylinder 20; it can pressurize the airflow and liquid flow, ensure the cleaning pressure on the surface of the product 31, and achieve a better cleaning effect.
[0043] Furthermore, the lower end of the jet assembly 6 is connected to a nozzle with an inclination angle of 0 to 30°; this allows high-pressure air to form a shearing force on the surface of the product 31, thereby quickly raising dust and ensuring a cutting effect. At the same time, the high-pressure airflow rotating in both directions will cancel each other out, preventing the product 31 from shifting during dust removal.
[0044] Furthermore: the central rotating shaft 1 is a hollow structure, and a high-speed rotary joint 7 is connected to the upper end of the central rotating shaft 1. The high-speed rotary joint 7 supplies air to the cleaning devices of the upper main rotor 3 and the lower main rotor 2 through the central rotating shaft 1; the hollow structure achieves the effect of air supply, and water can also be supplied for cleaning, so that the cleaning device can thoroughly clean the surface of the product 31.
[0045] Furthermore, a power assembly 27 is provided at the upper end of the central rotating shaft 1, and the power assembly 27 drives the central rotating shaft 1 to rotate.
[0046] Example 2: Figure 1-10 As shown, the present invention provides a single-axis bidirectional rotary dust removal mechanism, which includes a central rotary shaft 1;
[0047] The lower main rotor 2 is fixedly installed on the central rotating shaft 1, and the upper main rotor 3 is rotatably installed on the outer side of the central rotating shaft 1. The upper main rotor 3 and the lower main rotor 2 are separated from each other vertically.
[0048] A reversing mechanism 4 is installed between the upper main rotor 3 and the lower main rotor 2, and the rotation directions of the upper main rotor 3 and the lower main rotor 2 are opposite.
[0049] One or more cleaning devices are fixedly installed on the outer periphery of both the upper main rotor 3 and the lower main rotor 2.
[0050] Furthermore: the cleaning device includes a sub-rotor 5 and a jet assembly 6. The sub-rotor 5 is fixedly installed on the outer periphery of the upper main rotor 3 and the lower main rotor 2, and the jet assembly 6 is fixedly installed on the outer end of the sub-rotor 5.
[0051] The principle is as follows: the reversing mechanism 4 is used to change the rotation mode of the upper main rotor 3 so that the rotation direction of the upper main rotor 3 is opposite to that of the lower main rotor 2, so that the jet assembly 6 on the outer periphery of the upper main rotor 3 and the lower main rotor 2 can be at different blowing angles to blow away dust and ensure the dust removal effect.
[0052] Furthermore, the reversing mechanism 4 includes a first face gear 41, a second face gear 42, a gearbox 43, and a reversing gear 44. The first face gear 41 is fixedly mounted on the central rotating shaft 1, the second face gear 42 is rotatably mounted on the central rotating shaft 1, the gearbox 43 is rotatably mounted on the outside of the first face gear 41 and the second face gear 42, and the reversing gear 44 is rotatably mounted inside the gearbox 43, meshing between the first face gear 41 and the second face gear 42. The upper main rotor 3 is fixedly mounted on the bottom side of the second face gear 42. The reversing structure can be formed by the mutual cooperation of the first face gear 41, the second face gear 42, and the reversing gear 44, so that the rotation directions of the first face gear 41 and the second face gear 42 are opposite, thereby changing the rotation direction of the upper main rotor 3, while the rotation direction of the lower main rotor 2 is the same as that of the central rotating shaft 1, realizing coaxial bidirectional rotational drive, ensuring that the upper and lower jet assemblies 6 are in different rotation directions to blow air, thereby ensuring their dust removal effect.
[0053] Furthermore, two reversing gears 44 are provided, making the reversing transmission more stable.
[0054] Optionally, the reversing mechanism 4 can be any one of a face gear transmission mechanism, a bevel gear transmission mechanism, a belt transmission mechanism, a planetary gear transmission mechanism, or a cam transmission mechanism.
[0055] Furthermore: the central rotating shaft 1 is a hollow structure, and a high-speed rotary joint 7 is connected to the upper end of the central rotating shaft 1. The high-speed rotary joint 7 supplies air to the cleaning devices on the outer periphery of the upper main rotor 3 and the lower main rotor 2 through the central rotating shaft 1; it can transport air during rotation, which is convenient for the connection and use of high-pressure gas.
[0056] Specifically: the high-speed rotary joint 7 supplies air to the jet assembly 6 in the cleaning device through the central rotating shaft 1; which can quickly raise dust.
[0057] Furthermore: an upper positioning cylinder 8 is fixedly installed between the upper main rotor 3 and the second gear 42. Several upper air holes 9 are formed on the outer side of the central rotating shaft 1. A first annular groove 10 is formed inside the upper positioning cylinder 8. The several upper air holes 9 are all set in the first annular groove 10. Several upper air nozzles 11 are fixedly installed on the outer side of the upper positioning cylinder 8. The upper air nozzles 11 are connected to the central rotating shaft 1 through the upper air holes 9. A first air pipe is connected between the jet assembly 6 on the outer periphery of the upper main rotor 3 and the upper air nozzles 11. This can realize a stable connection between the central rotating shaft 1 and the upper jet assembly 6, ensuring a stable air supply to the upper jet assembly 6, thereby ensuring the effect of air blowing and cleaning.
[0058] Furthermore, the upper positioning cylinder 8 is rotatably mounted on the outside of the central rotating shaft 1, making the installation of the upper positioning cylinder 8 more stable.
[0059] Furthermore, the second gear 42 and the upper positioning cylinder 8 are connected by a flange, and the upper positioning cylinder 8 and the upper main rotor 3 are connected by a flange; this makes the installation of the second gear 42 and the upper main rotor 3 more stable. Alternatively, other fixing methods can be selected for installation and locking to ensure the stability of the installation.
[0060] Furthermore, the upper air holes 9 are arranged in a circular array with each other, so that the airflow can be stably input into the rotating upper positioning cylinder 8 through the upper air holes 9, and the airflow will be transported to several upper air nozzles 11 through the first annular groove 10 for stable air delivery, and it is not easy for air leakage to occur.
[0061] Furthermore, the upper positioning cylinder 8 has two upper sealing grooves 12 formed inside, and upper sealing rings 13 are installed in the upper sealing grooves 12. The first annular groove 10 is set between the two upper sealing rings 13. The upper sealing rings 13 can be added to further ensure the sealing effect of the air supply and effectively avoid the occurrence of air leakage.
[0062] Furthermore: a lower positioning cylinder 14 is fixedly installed between the lower main rotor 2 and the central rotating shaft 1. Several lower air holes 15 are formed on the outer side of the central rotating shaft 1. A second annular groove 16 is formed inside the lower positioning cylinder 14. The several lower air holes 15 are all set in the second annular groove 16. Several lower air nozzles 17 are fixedly installed on the outer side of the lower positioning cylinder 14. The lower air nozzles 17 are connected to the central rotating shaft 1 through the lower air holes 15. A second air pipe is connected between the jet assembly 6 on the outer periphery of the lower main rotor 2 and the lower air nozzles 17. This enables the central rotating shaft 1 to stably supply air to the several lower air nozzles 17, ensuring the effect of blowing and dust removal.
[0063] Furthermore, the plurality of lower air holes 15 are arranged in a circular array with each other, which can ensure the uniformity and stability of air delivery.
[0064] Furthermore, the lower positioning cylinder 14 and the lower main rotor 2 are connected by a flange, which ensures a stable connection, and other fixing methods can also be selected for assembly.
[0065] Furthermore, the lower positioning cylinder 14 has two lower sealing grooves 18 formed inside, and a lower sealing ring 19 is installed in the lower sealing groove 18. The second annular groove 16 is set between the two lower sealing rings 19; this can effectively prevent air leakage.
[0066] Furthermore: the sub-rotor 5 of the upper main rotor 3 is longer than the sub-rotor 5 of the lower main rotor 2, and the jet assemblies 6 of the upper and lower sub-rotor 5 are staggered; the staggered jet assemblies 6 achieve cross-blowing in different rotation directions to ensure cleaning effect, while the jet assemblies 6 on the upper and lower sides do not affect each other when operating at high speed.
[0067] Furthermore, the lower end of the jet assembly 6 is connected to a nozzle, which includes a first nozzle 21 and a second nozzle 22. An airflow speed-increasing cylinder 20 is formed on the jet assembly 6 of the outer peripheral rotor 5 of the upper main rotor 3. The first nozzle 21 is fixedly installed at the bottom end of the airflow speed-increasing cylinder 20, and the second nozzle 22 is fixedly installed at the bottom end of the jet assembly 6 of the outer peripheral rotor 2 of the lower main rotor 2. The first nozzle 21 and the second nozzle 22 are at the same height. The airflow speed-increasing cylinder 20 can be used to keep the blowing height consistent, thereby ensuring the effect of blowing dust removal.
[0068] Furthermore, the upper end of the jet assembly 6 is connected to a right-angle quick-connect fitting 23. The right-angle quick-connect fitting 23 of the upper jet assembly 6 is connected to the upper air nozzle 11 through the first air pipe, and the right-angle quick-connect fitting 23 of the lower jet assembly 6 is connected to the lower air nozzle 17 through the second air pipe. This enables the quick installation and use of the first and second air pipes, and also facilitates the quick replacement of the first and second air pipes.
[0069] Furthermore, a conical pressure cylinder 24 is fixedly installed inside the jet assembly 6, and an inclined surface 25 is formed at the lower end of the jet assembly 6. The first nozzle 21 and the second nozzle 22 are respectively fixedly installed on the inclined surface 25 of the jet assembly 6; this can achieve the effect of pressurizing the airflow, ensuring the air pressure intensity of the blowing air, and thus improving the cleaning effect.
[0070] Furthermore, the inclined angle of the inclined surface 25 is 0° to 30°, which allows the nozzle to tilt and blow air onto the product 31. The air force will form a shear force with the surface of the product, which can achieve the technical effect of quickly blowing away dust and realize efficient dust removal.
[0071] Furthermore, a retaining ring 26 is snapped onto the outer side of the jet assembly 6, and the jet assembly 6 is fixedly mounted on the outer end of the split rotor 5 by the retaining ring 26; this enables the jet assembly 6 to be quickly installed and removed from the split rotor 5, thereby facilitating the replacement and maintenance of the jet assembly 6.
[0072] Furthermore: A power assembly 27 is provided at the upper end of the central rotating shaft 1, and a synchronous wheel 28 is fixedly installed on the central rotating shaft 1. The power assembly 27 drives the central rotating shaft 1 to rotate through the synchronous wheel 28. The synchronous wheel 28 can enhance the stability of the connection between the power assembly 27 and the central rotating shaft 1. By using the power assembly 27 to drive the central rotating shaft 1 to rotate, the technical effect of stable driving is achieved.
[0073] The power component 27 can be either an electric motor or a rotary cylinder; any driving method can be selected to achieve a stable driving effect.
[0074] Furthermore, an upper conveying assembly 29 and a lower conveying assembly 30 are also provided. The single-axis bidirectional rotary dust removal mechanism is provided in two symmetrical configurations, and each single-axis bidirectional rotary dust removal mechanism is installed in the upper conveying assembly 29 and the lower conveying assembly 30 respectively. The product 31 is driven and connected between the upper conveying assembly 29 and the lower conveying assembly 30. The single-axis bidirectional rotary dust removal mechanisms on the upper and lower sides respectively remove dust and clean the upper and lower surfaces of the product 31. When the product 31 is conveyed between the upper conveying assembly 29 and the lower conveying assembly 30, it can form a bidirectional dust removal cyclone through the coaxial forward and reverse rotating upper main rotor 3 and lower main rotor 2, achieving a thorough cleaning effect.
[0075] In addition to conveying high-pressure airflow for dust removal, this utility model can also convey compressed inert gas, clean water, cleaning fluid and other cleaning media to ensure the cleaning effect on the surface of product 31.
[0076] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.
Claims
1. A single-axis bidirectional rotary dust removal mechanism, comprising a central rotating shaft; characterized in that: The lower main rotor is fixedly mounted on the central rotating shaft, and the upper main rotor is rotatably mounted on the outer side of the central rotating shaft. A reversing mechanism is installed between the upper main rotor and the lower main rotor, and the rotation directions of the upper main rotor and the lower main rotor are opposite. One or more cleaning devices are fixedly installed on the outer periphery of both the upper and lower main rotors.
2. The uniaxial bidirectional rotary dust removal mechanism according to claim 1, characterized in that: The cleaning device includes a split rotor and a jet assembly. The split rotor is fixedly installed on the outer periphery of the upper main rotor and the lower main rotor, and the jet assembly is fixedly installed on the split rotor.
3. The single-shaft bidirectional rotary dust removal mechanism according to claim 2, characterized in that: An airflow speed-increasing cylinder is formed on the jet assembly of the outer peripheral cleaning device of the upper main rotor.
4. The single-shaft bidirectional rotary dust removal mechanism according to claim 2, characterized in that: The lower end of the jet assembly is connected to a nozzle, and the nozzle has an inclination angle of 0 to 30°.
5. The single-shaft bidirectional rotary dust removal mechanism according to claim 1, characterized in that: The central rotating shaft is a hollow structure, and a high-speed rotary joint is connected to the upper end of the central rotating shaft. The high-speed rotary joint supplies air to the cleaning devices of the upper and lower main rotors through the central rotating shaft.
6. The single-shaft bidirectional rotary dust removal mechanism according to claim 1, characterized in that: A power assembly is provided at the upper end of the central rotating shaft, and the power assembly drives the central rotating shaft to rotate.