Mixing mill

Abstract

The invention relates to the technical field of mixing mills, and discloses a mixing mill which comprises a shell, a first main shaft, a first power unit and a first rotating shaft, a first gear ring is arranged on the inner wall of the shell; the first main shaft is rotatably arranged in the shell, a first channel is formed in the first main shaft, and the first channel extends in the axial direction of the first main shaft; the first power unit is in power fit with the first spindle to drive the first spindle to rotate; the first rotating shaft is rotatably arranged in the first channel, a first gear meshed with the first gear ring is arranged at one end of the first rotating shaft in the axial direction of the first rotating shaft, and a first stirring part located outside the first channel is arranged at the other end of the first rotating shaft. According to the mixing mill, the operation stability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of mixers, and in particular to a mixer. Background Art

[0002] Existing traditional small-scale mixers use a chain drive and consist of a driving sprocket, a driven sprocket, and a chain. The driving sprocket is connected to the motor output shaft, while the driven sprocket is mounted on the mixer shaft. The motor drives the driving sprocket, which, through the meshing of the chain and sprocket, drives the driven sprocket, thereby rotating the mixer shaft. Existing small-scale mixers have high transmission efficiency, can transmit high power, operate reliably, and have a long service life. Compared with belt drives, chain drives have a precise transmission ratio and are free of slippage. However, chain drives require high installation precision, regular lubrication and maintenance, and generate a certain amount of noise during operation.

[0003] Nowadays, during the use of the mixer, the operation stability of the mixer is a technical problem that needs to be solved urgently. Summary of the Invention

[0004] The present application provides a mixing machine, which improves operating stability.

[0005] In order to achieve the above objectives, the main technical solutions adopted in this application include:

[0006] In a first aspect, an embodiment of the present application provides a mixing machine, comprising a shell, a first main shaft, a first power unit and a first rotating shaft; a first ring gear is provided on the inner wall of the shell; the first main shaft is rotatably arranged in the shell, and a first channel is provided in the first main shaft, and the first channel extends along the axial direction of the first main shaft; the first power unit cooperates with the power of the first main shaft to drive the first main shaft to rotate; the first rotating shaft is rotatably arranged in the first channel, and along the axial direction of the first rotating shaft, one end of the first rotating shaft is provided with a first gear meshing with the first ring gear, and the other end of the first rotating shaft is provided with a first stirring part located outside the first channel.

[0007] In the mixer disclosed in the embodiments of the present application, a first rotating shaft is rotatably disposed within a first channel of a first main shaft. A first gear at one end of the first rotating shaft meshes with a first gear ring on the inner wall of the housing. A first stirring portion at the other end of the first rotating shaft extends out of the channel for operation, forming a shaft-in-shaft structure. This significantly reduces the cantilever length of the first rotating shaft, thereby significantly reducing the risk of bending, deformation, and shaking of the first rotating shaft caused by external forces such as centrifugal force and material resistance during high-speed rotation, thereby improving operational stability. Furthermore, the support structure formed by the first main shaft for the first rotating shaft, combined with the meshing constraints of the gear and gear ring, further enhances the rigidity and positioning accuracy of the first rotating shaft, ensuring that the dispersion shaft maintains stable operation during mixing operations, extending the service life of the equipment, and improving mixing quality.

[0008] Optionally, there are multiple first channels and multiple first rotating shafts, each first rotating shaft is arranged in the corresponding first channel, and a first gear is provided at one end of each first rotating shaft, and the multiple first gears are respectively engaged with the first ring gear.

[0009] In the above scheme, the multi-axis symmetrical or uniformly distributed design helps to offset the centrifugal force generated during the rotation process, reduce equipment vibration, and improve the overall operating stability. Multiple first rotating shafts rotate simultaneously, and the first stirring part (such as stirring blade, stirring paddle, etc.) at the end of each rotating shaft can cover a larger mixing area, increase the contact area between the material and the stirring component, and greatly improve the mixing efficiency. The multi-axis layout can form multiple shear force fields in the shell, so that the material is subjected to more complex forces, avoiding the problem of local uneven mixing, and is especially suitable for the processing of high-viscosity or difficult-to-disperse materials.

[0010] Optionally, at least some of the plurality of first gears are arranged at intervals along the axial direction of the first main shaft.

[0011] In the above scheme, multiple first gears are at least partially spaced apart along the axial direction of the first main shaft. In this way, the spaced gears can make full use of the axial space of the main shaft, avoid the dense arrangement of multiple gears in the same radial plane, and effectively reduce the radial dimensions of the ring gear and the housing. At the same time, gears in different axial positions correspond to independent rotating shafts and stirring parts, so that the components are distributed in layers in three-dimensional space, reducing the probability of mutual interference and greatly improving space utilization.

[0012] Optionally, the first main shaft further comprises a second channel separated from the first channel, and the second channel extends along the axial direction of the first main shaft;

[0013] The mixer further comprises a second power unit and a second rotating shaft. Along the axial direction of the second rotating shaft, one end of the second rotating shaft is connected to the second power unit, and the other end of the second rotating shaft is provided with a second stirring portion located outside the second channel.

[0014] In the above scheme, the first power unit and the second power unit can adjust the speed independently. By setting different speed ratios for the first power unit and the second power unit, it is helpful to realize multiple stirring functions and improve the overall stability. The dual-axis stirring makes the material more evenly stressed, avoids the overload problem caused by single-axis stirring, reduces the bending deformation of the main shaft and bearing wear, and extends the service life of the equipment. The centrifugal force generated by the rotation of the two shafts can offset each other through reasonable design, reducing the vibration amplitude of the equipment and improving the smoothness of operation, especially when running at high speed.

[0015] Optionally, a second gear is provided at one end of the second rotating shaft along the axial direction of the second rotating shaft, the power output end of the second power unit is constructed as a third gear meshing with the second gear, and the second gear and the first gear are spaced apart along the axial direction of the first main shaft.

[0016] In the above scheme, the second gear is axially offset from the first gear to avoid competition for space in the same radial plane, allowing the two gear transmission systems to form an axial "upper and lower layered" structure, significantly reducing the radial size of the housing. Through the axial layered layout, the two gear transmission systems do not interfere with each other, and the dual-axis independently driven stirring function can be achieved without additional expansion of the housing's radial size. Compared to the traditional coplanar arrangement, this design avoids competition for space between the gears, rotating shaft, and stirring section in the same plane, allowing the first and second channels to be rationally arranged within the main shaft. It can even adopt an eccentric design to optimize the structure and reduce the impact of channel processing on the main shaft strength.

[0017] Optionally, the mixer further comprises a connecting portion and a first gear disc, wherein the connecting portion connects the first gear disc and the first main shaft along the axial direction of the first main shaft;

[0018] The power output end of the first power unit is configured as a second sprocket, and the second sprocket is connected to the first sprocket via a chain.

[0019] In the above solution, the axial connection fixes the sprocket, and cooperates with the non-coaxial transmission of the chain to achieve a three-dimensional layout of "radial compactness + axial layering", further reducing the overall volume of the equipment. At the same time, the rigid connection ensures efficient torque transmission, and the flexible transmission of the chain compensates for installation errors. The combination of the two enables the transmission system to remain stable under high load.

[0020] Optionally, the connecting portion has an accommodating space, and the second gear and the third gear are arranged in the accommodating space.

[0021] In the above solution, the second gear and the third gear are integrated into the accommodating space inside the connecting part to avoid the second gear and the third gear being exposed and occupying additional space. Compared with the traditional exposed gear transmission, the axial and radial dimensions can be greatly reduced, reducing the overall volume of the equipment. At the same time, the accommodating space can be designed in a three-dimensional layered manner according to the gear layout requirements, further improving the axial space utilization and radial space utilization of the first main shaft, greatly reducing the cantilever, and improving the operating stability.

[0022] Optionally, the first stirring part is configured as a stirring paddle or a stirring disk, and the second stirring part is configured as a stirring paddle or a stirring disk.

[0023] In the above scheme, the first stirring part and the second stirring part can both be constructed as stirring paddles or stirring plates, that is, the first stirring part and the second stirring part can be constructed as the same structure or different structures, so as to meet different usage requirements and improve the convenience of use.

[0024] Optionally, the mixer has a first plane passing through the axis of the first main shaft and the axis of the second rotating shaft, and there are two first rotating shafts, which are symmetrical about the first plane.

[0025] In the above scheme, the two first rotating shafts, which are symmetrical about the first plane, work together to form a more three-dimensional and complex stirring flow field. Inside the mixer, the material is subjected to stirring forces from different directions and intensities, undergoing multi-directional stretching, folding, and shearing. This greatly promotes the mutual penetration and mixing of different components, effectively shortens the mixing time, and improves the mixing uniformity. Efficient stirring can be achieved regardless of whether the material is of high or low viscosity or of varying particle sizes. The symmetrical layout ensures balanced forces during operation. The centrifugal force, torque, and other forces generated by the two first rotating shafts offset or balance each other, significantly reducing equipment vibration and noise, and reducing local overload and wear of components due to uneven forces. This extends the service life of the equipment, reduces maintenance costs, and ensures stable and efficient operation of the equipment.

[0026] Optionally, the first channel has a first opening, the first opening passes through the outer circumference of the first main shaft, and a portion of the first ring gear extends into the first opening to engage with the first gear.

[0027] In this solution, the first gear meshes with the second gear within the first opening, fully utilizing the internal space of the first main shaft and eliminating the need for additional transmission components external to the main shaft. This reduces the overall size of the mixer or related equipment, making the overall layout more rational and facilitating the installation and arrangement of other components. Since the transmission structure no longer occupies additional external space, the placement of other functional components can be more flexibly arranged, improving the equipment's integration and space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 This is a schematic diagram of the overall structure of the mixer in some embodiments of the present application;

[0030] Figure 2 Schematic diagram of the structure of the mixer in other embodiments of the present application;

[0031] Figure 3 This is a schematic cross-sectional view of a mixing machine in some embodiments of the present application;

[0032] Figure 4 Schematic diagram of the cross-sectional structure of the mixing machine in other embodiments of the present application;

[0033] Figure 5 Schematic diagram of the cross-sectional structure of the mixing machine in other embodiments of the present application;

[0034] Figure 6 This is a schematic structural diagram of the first main shaft in some embodiments of the present application.

[0035] [Description of Reference Numerals]

[0036] 100: housing; 110: first ring gear;

[0037] 200: first main axis; 210: first channel; 211: first opening; 220: second channel;

[0038] 300: first power unit; 310: second gear wheel;

[0039] 400: first rotating shaft; 410: first gear; 420: first stirring part;

[0040] 500: second power unit; 510: third gear;

[0041] 600: second rotating shaft; 610: second gear; 620: second stirring part;

[0042] 700: connecting part; 710: accommodating space;

[0043] 800: first gear plate;

[0044] 900: Mixing tank; 901: Clamp. DETAILED DESCRIPTION

[0045] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0046] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0047] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0049] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0050] The term "multiple" in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0051] Existing traditional small-scale mixers use a chain drive and consist of a driving sprocket, a driven sprocket, and a chain. The driving sprocket is connected to the motor output shaft, while the driven sprocket is mounted on the mixer shaft. The motor drives the driving sprocket, which, through the meshing of the chain and sprocket, drives the driven sprocket, thereby rotating the mixer shaft. Existing small-scale mixers have high transmission efficiency, can transmit high power, operate reliably, and have a long service life. Compared with belt drives, chain drives have a precise transmission ratio and are free of slippage. However, chain drives require high installation precision, regular lubrication and maintenance, and generate a certain amount of noise during operation.

[0052] The gearbox of a traditional small mixer is relatively large, the dispersion shaft cantilever extends a large proportion, and the diameter of the center shaft cannot be too large due to the size limitation of the small mixer. Therefore, the cantilever is long, the volume is large, and the operating stability is insufficient.

[0053] In view of this, the present application proposes a mixing machine, in which a first channel 210 is provided in the first main shaft 200, and the first channel 210 extends along the axial direction of the first main shaft 200; the first power unit 300 cooperates with the power of the first main shaft 200 to drive the first main shaft 200 to rotate; the first rotating shaft 400 is rotatably arranged in the first channel 210, and along the axial direction of the first rotating shaft 400, one end of the first rotating shaft 400 is provided with a first gear 410 meshing with the first ring gear 110, and the other end of the first rotating shaft 400 is provided with a first stirring part 420 located outside the first channel 210, that is, the diameter of the central shaft is increased, and the dispersion shaft is placed inside the central shaft. With this arrangement, the overall structure is more compact, the cantilever extension ratio of the dispersion shaft is small, and the operating stability is good.

[0054] The mixer proposed in the embodiment of the present application will be described below with reference to the accompanying drawings.

[0055] Please refer to Figure 1 、 Figure 2 and Figure 3 According to an embodiment of the present application, a mixing mill is provided, including a housing 100 , a first main shaft 200 , a first power unit 300 and a first rotating shaft 400 .

[0056] A first ring gear 110 is provided on the inner wall of the housing 100 ; it is understandable that by providing the first ring gear 110 on the inner wall of the housing 100 , the rigid support of the housing 100 can be utilized to reduce shaking during transmission and improve structural stability.

[0057] The first main shaft 200 is rotatably arranged in the shell 100, and a first channel 210 is provided in the first main shaft 200, and the first channel 210 extends along the axial direction of the first main shaft 200; it can be understood that the design of the first channel 210 forms an axial space inside the main shaft, so that the main shaft can provide an installation channel for the first rotating shaft 400 while transmitting power, realizing a compact structure of "shaft in shaft", saving equipment space, and at the same time, the first channel 210 extends along the axial direction, ensuring that the installation direction of the first rotating shaft 400 is consistent with the rotation direction of the first main shaft 200, avoiding transmission interference, and ensuring smooth rotation.

[0058] The first power unit 300 cooperates with the first main shaft 200 to drive the first main shaft 200 to rotate; it can be understood that the first power unit 300 drives the first main shaft 200 to rotate, that is, the power of the first main shaft 200 is provided by the first power unit 300.

[0059] As an example, the first power unit 300 can be an electric motor, a hydraulic motor, etc., and this application does not impose any restrictions on this. The power coordination method can be gear transmission, sprocket transmission, belt transmission, etc., and this application does not impose any restrictions on this.

[0060] The first rotating shaft 400 is rotatably disposed in the first channel 210, that is, the first rotating shaft 400 can rotate inside the first main shaft 200. On the one hand, the first rotating shaft 400 can rotate along with the first main shaft 200 and generate displacement. On the other hand, the first rotating shaft 400 can rotate on its own, thereby realizing a compound motion, which helps to improve the compactness of the structure.

[0061] Along the axial direction of the first rotating shaft 400, one end of the first rotating shaft 400 is provided with a first gear 410 that meshes with the first ring gear 110. That is to say, the first rotating shaft 400 establishes a transmission relationship with the shell 100 through the meshing relationship between the first gear 410 and the first ring gear 110, thereby converting the rotational motion of the first main shaft 200 into its own rotation, thereby realizing the compound motion of the first rotating shaft 400. The overall structure is more compact, the cantilever extension ratio of the dispersed shaft is small, and the operating stability is good.

[0062] The other end of the first rotating shaft 400 is provided with a first stirring portion 420 located outside the first channel 210. It can be understood that the first stirring portion 420 extends out of the channel and directly acts on the material to achieve functions such as stirring, and moves with the compound movement of the first rotating shaft 400, so that the material in the mixing process is subjected to more complex shearing and stirring effects, thereby improving the mixing effect.

[0063] As an example, the first stirring part 420 can be a stirring blade, a stirring paddle, a dispersing paddle, a dispersing disk, etc., and this application does not impose any limitation on this.

[0064] The mixing blade usually has a sharp edge and can generate strong shear force on the material when rotating at high speed. It is suitable for scenarios where high-viscosity materials need to be quickly crushed and dispersed.

[0065] There are various types of stirring blades, such as straight blades and inclined blades. They promote convection and mixing of materials through large-scale stirring and are often used in ordinary mixing operations that require high mixing uniformity.

[0066] The surface of the dispersing paddle often has a serrated structure, which can generate strong turbulence and shear force when rotating, and can effectively break up the agglomerated material particles. It is particularly suitable for the dispersion of pigments and fillers in the matrix material.

[0067] The dispersion disc is mostly disc-shaped with a toothed structure around it. During operation, it can form a strong vortex effect in the material, enabling the material to be efficiently dispersed and mixed under the multiple effects of centrifugal force, shear force, etc. It is widely used in the production and processing of fine chemical products such as coatings and inks.

[0068] In addition, the rotatable setting can ensure that the first rotating shaft 400 can rotate freely in the first channel 210, and cooperate with the gear meshing relationship to ensure that its rotation speed and direction form a stable transmission ratio with the main shaft and the ring gear, reducing the probability of jamming or overloading.

[0069] At the same time, the first stirring part 420 is located outside the first channel 210, and can penetrate into the material area inside the stirring chamber to expand the stirring coverage, while avoiding the interference of the rotation of the first main shaft 200 on the stirring action, thereby improving the effectiveness of the equipment.

[0070] In the mixer disclosed in the embodiment of the present application, the first rotating shaft 400 is rotatably disposed within the first channel 210 of the first main shaft 200. The first gear 410 at one end of the first rotating shaft 400 meshes with the first ring gear 110 on the inner wall of the housing 100. The first stirring portion 420 at the other end of the first rotating shaft 400 extends out of the channel to operate, forming a shaft-in-shaft structure. The cantilever length of the first rotating shaft 400 is significantly reduced, thereby significantly reducing the risk of bending, deformation, and shaking of the first rotating shaft 400 caused by external forces such as centrifugal force and material resistance during high-speed rotation, thereby improving operational stability. At the same time, the support structure formed by the first main shaft 200 for the first rotating shaft 400, combined with the meshing constraints of the gear and the ring gear, further enhances the rigidity and positioning accuracy of the first rotating shaft 400, ensuring that the dispersion shaft always maintains stable operation during the mixing operation, extending the service life of the equipment and improving the mixing quality.

[0071] In other embodiments, please refer to Figure 3 and Figure 5 There are multiple first channels 210 and multiple first rotating shafts 400, and each first rotating shaft 400 is arranged in the corresponding first channel 210. It can be understood that by opening multiple first channels 210 in the first main shaft 200, the axial space is fully utilized, so that the equipment can achieve multi-axis stirring function while maintaining a small volume, which is suitable for production scenarios with high space requirements.

[0072] It's understandable that a multi-axis symmetrical or evenly distributed design helps offset centrifugal forces generated during rotation, reducing equipment vibration and improving overall operational stability. Different shaft ends can be equipped with different types of agitators (such as a combination of agitating blades and a dispersing disc), allowing for flexible adjustment of mixing methods based on material characteristics and process requirements, enhancing the versatility of the equipment.

[0073] A first gear 410 is provided at one end of each first rotating shaft 400, and multiple first gears 410 are respectively engaged with the first ring gear 110. It can be understood that multiple first gears 410 shafts share one first ring gear 110, which reduces the number of transmission components, reduces energy loss, improves energy utilization efficiency, and makes the synchronization of multiple first rotating shafts 400 higher and the operation more stable.

[0074] In the above scheme, multiple first rotating shafts 400 rotate simultaneously, and the first stirring part 420 (such as a stirring blade, stirring paddle, etc.) at the end of each rotating shaft can cover a larger mixing area, increase the contact area between the material and the stirring component, and greatly improve the mixing efficiency. The multi-axis layout can form multiple shear force fields in the shell 100, so that the material is subjected to more complex forces, avoiding the problem of local uneven mixing, and is particularly suitable for the processing of high-viscosity or difficult-to-disperse materials.

[0075] As an example, a first stirring portion 420 is provided at the other end of each first rotating shaft 400, and the first stirring portions 420 of some of the multiple first rotating shafts 400 are set to at least one of a stirring blade and a stirring paddle, and the first stirring portions 420 of another part of the multiple first rotating shafts 400 are set to at least one of a dispersing paddle and a dispersing disk.

[0076] Alternatively, the first stirring parts 420 in the plurality of first rotating shafts 400 are configured as at least one of stirring blades and stirring paddles.

[0077] Alternatively, the first stirring parts 420 in the plurality of first rotating shafts 400 are configured as at least one of a dispersing paddle and a dispersing disk.

[0078] In other embodiments, please refer to Figure 3 and Figure 4 At least some of the multiple first gears 410 are spaced apart along the axial direction of the first main shaft 200. That is, the multiple first gears 410 can be spaced apart along the axial direction. After the multiple first gears 410 are staggered along the axial direction, it is possible to avoid all the first gears 410 being concentrated in the same radial plane, effectively utilizing the axial length space of the first main shaft 200, which not only improves space utilization but also improves transmission stability.

[0079] For example, if multiple first gears 410 are arranged at the same axial position, the local size of the gear ring will be too large or the radial spacing between the gears will be too small, increasing the processing difficulty and the risk of interference; after the staggered arrangement, the gears form a "step-like" distribution in the axial direction, so that the meshing areas of each gear and the gear ring are independent of each other, ensuring that the transmission components do not interfere with each other in a limited space.

[0080] Furthermore, the spaced gears do not need to be densely arranged in the same axial plane, which can reduce the radial size of the ring gear. For example, if all gears were concentrated in the same axial position, the ring gear would need to cover a larger circumferential area to accommodate the meshing of multiple gears, resulting in an increase in the diameter of the housing 100. However, with axial spacing, the ring gear only needs to meet the meshing requirements of a single gear. Combined with the axial layered layout, the radial size of the housing 100 can be significantly reduced, making the device structure more compact.

[0081] The spaced first gears 410 form discontinuous meshing points on the gear ring, thereby avoiding load concentration on the same axial position of the first gear ring 110 , reducing the risk of local wear of the first gear ring 110 , and extending the service life of the first gear ring 110 .

[0082] By staggering the axial positions of the multiple first gears 410, the first ring gear 110 is subjected to a more even axial force, reducing deformation or vibration of the first ring gear 110 due to uneven loads and improving transmission stability. In other words, the staggered arrangement of the gears evenly distributes the radial force acting on the first main shaft 200, preventing shaft bending and deformation due to concentrated loads. For example, if the gears were concentrated at one end of the main shaft, a large eccentric torque would be generated. However, with axial spacing, the meshing reaction forces of the gears offset each other, resulting in a more balanced force on the main shaft and further improving operational stability.

[0083] Furthermore, the staggered vibration frequencies of the spaced first gears 410 during rotation reduce the likelihood of resonance in the entire equipment, making it particularly suitable for high-speed mixers. The meshing constraints of the axially distributed first gears 410 also limit the axial displacement of the first main shaft 200 during operation, improving its positioning accuracy and reducing additional wear on components such as bearings.

[0084] For example, the axial spacing of the first gears 410 can also lead to axially staggered distribution of the first stirring parts 420, preventing multiple stirring parts from competing for space in the same radial plane. For example, components such as the stirring blade and the dispersion disc can be arranged at different axial heights, which not only expands the material stirring range, but also prevents collisions between the stirring parts during rotation, and reduces the increase in fluid resistance caused by the concentration of components.

[0085] This arrangement creates multiple "stirring units" in the axial direction, each corresponding to a different material processing area. For example, the upper stirring unit pushes the material downward, while the lower stirring unit flips upward, creating a circular flow path using the axial space to prevent localized accumulation of material. This layout forces the material to undergo multiple axial displacements during mixing, which, combined with the radial stirring action, improves mixing efficiency.

[0086] If the gears and the stirring part are concentrated in a certain axial area, a "dead corner" that is difficult for materials to reach may be easily formed at the bottom or top of the shell 100; however, after the axial spacing is arranged, the stirring part can cover the entire axial length of the shell 100. For example, gears and the stirring part are respectively arranged near the top and bottom areas of the shell 100 to ensure that the material is evenly processed in the entire space, thereby improving the mixing uniformity.

[0087] As an example, the axially spaced layout provides space for installing auxiliary components such as temperature sensors and pressure monitoring devices. For example, a sensor interface is provided on the wall of the housing 100 at the gear spacing. This does not affect the operation of the transmission components, but also enables real-time monitoring of the material status in different axial regions, improving ease of use.

[0088] In the above scheme, multiple first gears 410 are at least partially spaced apart along the axial direction of the first main shaft 200. In this way, the spaced gears can make full use of the axial space of the main shaft, avoid the dense arrangement of multiple gears in the same radial plane, and effectively reduce the radial dimensions of the ring gear and the housing 100. At the same time, gears in different axial positions correspond to independent rotating shafts and stirring parts, so that the components are distributed in layers in three-dimensional space, reducing the probability of mutual interference and greatly improving space utilization.

[0089] In terms of motion stability, the interval setting disperses the meshing points of the gears and the ring gear in the axial direction, avoiding the load concentration on the local part of the ring gear and reducing the risk of wear of the gears and the ring gear; and multiple sets of gears transmit power in layers, which can balance the centrifugal force and torque generated when the main shaft rotates, reduce the radial runout and vibration of the main shaft, and cooperate with the mutual constraints between the rotating shafts to significantly enhance the stability of the equipment operation and extend the service life of the equipment.

[0090] In other embodiments, a portion of the multiple first gears 410 can be set at axial intervals, and another portion of the multiple first gears 410 can be arranged in a radial plane. It can be understood that the axially spaced gear set disperses the transmission load to different axial positions of the ring gear, reducing local wear of the ring gear, and the radially coplanar gear set forms a stable "torque balance group" through synchronous meshing, offsetting part of the rotational reaction force and reducing the vibration of the main shaft.

[0091] In addition, the axially spaced gear sets make full use of the height of the housing 100 to expand the mixing area without increasing the radial size. The radially coplanar gear sets can share a smaller diameter gear ring, reducing the radial size of the housing 100, which is suitable for scenarios that are sensitive to floor space (such as laboratory equipment and vehicle-mounted mixing devices).

[0092] At the same time, the axially spaced gears drive the stirring section to form layered mixing areas at different heights. The top gear is equipped with a stirring paddle, which is responsible for the initial dispersion and macro-mixing of the material. The middle gear is equipped with a dispersion disk to enhance the shearing effect and refine the material particles. The bottom gear is equipped with a specially shaped stirring blade to handle settled or agglomerated materials to ensure overall uniformity. The radially coplanar gear set forms a concentrated shear area, generating high-intensity turbulence on the same horizontal plane, which is particularly suitable for additives that need to be dispersed quickly (such as pigments and short fibers) and improves local mixing efficiency.

[0093] In other embodiments, please refer to Figure 4 and Figure 6 The first main shaft 200 also has a second channel 220 separated from the first channel 210, and the second channel 220 extends axially along the first main shaft 200; it can be understood that the first channel 210 and the second channel 220 extend axially in the same main shaft, but are separated from each other, so that the equipment can achieve multi-axis stirring function while maintaining a smaller radial size.

[0094] The second channel 220 does not need to occupy additional space in the housing 100 and directly utilizes the remaining volume inside the main shaft, thereby avoiding the volume expansion of the equipment caused by the traditional multi-axis design and further reducing the overall volume.

[0095] The mixer further includes a second power unit 500 and a second rotating shaft 600 . Along the axial direction of the second rotating shaft 600 , one end of the second rotating shaft 600 is connected to the second power unit 500 , and the other end of the second rotating shaft 600 is provided with a second stirring portion 620 located outside the second channel 220 .

[0096] In the above scheme, the first power unit 300 and the second power unit 500 can independently adjust the speed. By setting different speed ratios for the first power unit 300 and the second power unit 500, it is helpful to realize multiple stirring functions and improve the overall stability. The dual-axis stirring makes the material more evenly stressed, avoids the overload problem caused by single-axis stirring, reduces the bending deformation of the main shaft and bearing wear, and extends the service life of the equipment. The centrifugal force generated by the rotation of the two shafts can offset each other through reasonable design, reducing the vibration amplitude of the equipment and improving the smoothness of operation, especially when running at high speed.

[0097] For example, the high-speed second stirring section 620 (e.g., a dispersion disc) is responsible for material refinement, while the low-speed first stirring section 420 (e.g., a stirring paddle) is responsible for macro-mixing, creating a synergistic effect of "fine dispersion + macro-convection." Alternatively, the two shafts can rotate in opposite directions, generating a shear field within the material, significantly improving mixing efficiency. This is particularly suitable for mixing high-viscosity materials (e.g., rubber and asphalt).

[0098] In other words, by adjusting the stirring parameter combination of the two shafts, the mixing process of different materials can be quickly switched, for example, the speed of the second stirring section 620 is reduced to reduce frictional heat, and the speed of the first stirring section 420 is increased to enhance particle dispersion.

[0099] In other embodiments, please refer to Figure 3 and Figure 4 Along the axial direction of the second rotating shaft 600, a second gear 610 is provided at one end of the second rotating shaft 600, and the power output end of the second power unit 500 is constructed as a third gear 510 engaged with the second gear 610. Along the axial direction of the first main shaft 200, the second gear 610 and the first gear 410 are arranged at intervals.

[0100] In the above solution, the second gear 610 is axially staggered from the first gear 410 to avoid competing for space in the same radial plane. For example, the first gear 410 is positioned above the main shaft, while the second gear 610 is positioned below. This creates a "layered" structure between the two gear transmission systems in the axial direction, significantly reducing the radial dimensions of the housing 100.

[0101] Through the axially layered layout, the two gear transmission systems do not interfere with each other, achieving dual-shaft independent drive stirring without additional radial expansion of the housing 100. Compared to the traditional coplanar arrangement, this design avoids spatial competition between the gears, rotating shaft, and stirring unit within the same plane, allowing for a rational arrangement of the first channel 210 and the second channel 220 within the main shaft. An eccentric design can even be used to optimize the structure, reducing the impact of channel processing on the main shaft strength.

[0102] It is understood that the axial offset between the second gear 610 and the first gear 410 generates different centrifugal forces and vibration frequencies, which can offset some of the vibration energy and reduce the overall vibration amplitude of the device. For example, by adjusting the phase difference between the second gear 610 and the first gear 410, the vibration peaks can be staggered, which is particularly advantageous during high-speed operation.

[0103] Furthermore, because the second gear 610 is axially spaced from the first gear 410, the first channel 210 and the second channel 220 can be more rationally arranged within the spindle. For example, the first channel 210 and the second channel 220 can be asymmetrically designed, reducing machining difficulty while ensuring a uniform spindle wall thickness and improving structural strength.

[0104] In other embodiments, please refer to Figure 2 and Figure 4 The mixer also includes a connecting portion 700 and a first gear disc 800. Along the axial direction of the first main shaft 200, the connecting portion 700 connects the first gear disc 800 and the first main shaft 200; that is, the connecting portion 700 fixes the first gear disc 800 in the axial direction, so that the first gear disc 800 and the first main shaft 200 form a rigid connection, ensuring that there is no circumferential slippage during torque transmission. At the same time, the axial layout can also reduce the probability of main shaft bending caused by the radial cantilever installation of the gear disc, further improving the operating stability.

[0105] As an example, the connecting part 700 can be designed as an independent component (such as a flange + positioning pin). During assembly, the first gear disc 800 and the center of the first main shaft 200 can be quickly aligned through axial positioning, reducing assembly time. During maintenance, only the connecting part 700 needs to be disassembled to replace the first gear disc 800 or the main shaft separately, avoiding overall disassembly and improving ease of use.

[0106] The power output end of the first power unit 300 is constructed as a second sprocket 310, and the second sprocket 310 is connected to the first sprocket 800 by a chain. It can be understood that the second sprocket 310 is connected to the first sprocket 800 by a chain, allowing the first power unit 300 and the first main shaft 200 to be arranged non-coaxially (such as the first power unit 300 can be offset to the side of the first main shaft 200 to form an "L-shaped" transmission structure), which is convenient for arrangement according to actual space and helps to improve space utilization.

[0107] At the same time, the adjustable range of the center distance of the chain drive can be increased, which facilitates flexible adaptation to the installation position of power units of different power (for example, a small power motor can be close to the main shaft, and a high power motor can be externally cooled).

[0108] As an example, the connection portion 700 adopts a flange or spline structure, which can quickly disassemble the connection between the first chainring 800 and the first main shaft 200. For example, during maintenance, only the bolts of the connection portion 700 need to be loosened to remove the first chainring 800 and the chain as a whole, thereby improving maintenance efficiency.

[0109] As an example, the chain drive can be equipped with a closed protective cover (such as a metal shell 100 with a sealing ring) to isolate the transmission system from the mixing chamber to prevent material dust from entering the transmission components. If the gear drive adopts a closed structure, the radial size of the shell 100 will be increased.

[0110] As an example, the connecting portion 700 may adopt an annular symmetrical structure (such as a cross rib design) to evenly transmit the torque of the first gear disc 800 to the main shaft, thereby avoiding local stress concentration and helping to improve operational stability.

[0111] As an example, since the chain drive does not require a gear mounting groove to be provided in the radial direction of the main shaft, the first channel 210 and the second channel 220 can be arranged in parallel in the main shaft, thereby improving the utilization rate of the inner diameter of the first main shaft 200 .

[0112] In other embodiments, please refer to Figure 3 and Figure 4 The connecting portion 700 has an accommodating space 710, that is, the accommodating space 710 and the second channel 220 can enclose a space for accommodating the second rotating shaft 600, thereby playing the role of sealing and protecting the second rotating shaft 600. This arrangement facilitates the separation of the first rotating shaft 400 and the second rotating shaft 600, thereby reducing the probability of mutual interference between the first rotating shaft 400 and the second rotating shaft 600 and improving operational stability.

[0113] The second gear 610 and the third gear 510 are arranged in the accommodating space 710. That is, the accommodating space 710 provides a dedicated accommodating area for the second gear 610 and the third gear 510, which facilitates the separate arrangement of the second gear 610 and the third gear 510, while further improving the axial and radial space utilization of the first main shaft 200, thereby further improving the compactness of the structure.

[0114] In the above solution, the second gear 610 and the third gear 510 are integrated into the accommodating space 710 inside the connecting part 700, so as to avoid the second gear 610 and the third gear 510 being exposed and occupying additional space. Compared with the traditional exposed gear transmission, the axial and radial dimensions can be greatly reduced, thereby reducing the overall volume of the equipment. At the same time, the accommodating space 710 can be designed in a three-dimensional layered manner according to the gear layout requirements, thereby further improving the axial space utilization and radial space utilization of the first main shaft 200, greatly reducing the cantilever, and improving the operating stability.

[0115] In other embodiments, the first stirring portion 420 is configured as a stirring paddle or a stirring disk, and the second stirring portion 620 is configured as a stirring paddle or a stirring disk.

[0116] In the above scheme, the first stirring part 420 and the second stirring part 620 can both be constructed as stirring paddles or stirring plates, that is, the first stirring part 420 and the second stirring part 620 can both be constructed as stirring paddles, or the first stirring part 420 and the second stirring part 620 can both be constructed as stirring plates, or the first stirring part 420 is constructed as a stirring paddle and the second stirring part 620 is constructed as a stirring plate, or the first stirring part 420 is constructed as a stirring plate and the second stirring part 620 is constructed as a stirring paddle.

[0117] According to this arrangement, the first stirring section 420 and the second stirring section 620 can be constructed as different stirring structures. For example, when the first stirring section 420 is constructed as a stirring paddle and the second stirring section 620 is constructed as a stirring disk, the stirring paddle can help mix the materials, and the stirring disk can shear and disperse the materials, help the material circulation, and improve the mixing efficiency.

[0118] When the first stirring section 420 and the second stirring section 620 are constructed as the same stirring structure, for example, when the first stirring section 420 and the second stirring section 620 are both constructed as stirring paddles, multiple stirring paddles can stir materials at different positions together, thereby improving stirring uniformity, or when the first stirring section 420 and the second stirring section 620 are both constructed as stirring disks, multiple stirring disks can improve the material circulation efficiency and improve user experience.

[0119] In the above scheme, the first stirring part 420 and the second stirring part 620 can both be constructed as stirring paddles or stirring plates, that is, the first stirring part 420 and the second stirring part 620 can be constructed as the same structure or different structures, so as to meet different usage requirements and improve the convenience of use.

[0120] In a specific embodiment, the first stirring section 420 and the second stirring section 620 can be constructed as different stirring structures. For example, when processing heat-sensitive materials, the first stirring section 420 is constructed as a low-speed stirring paddle (such as a frame-type paddle) and serves as the main stirring section to reduce frictional heat generation; at the same time, the second stirring section 620 is constructed as a flow-guiding stirring disk to enhance material convection without increasing energy consumption. This arrangement can, on the one hand, reduce temperature fluctuations. On the other hand, when processing high-viscosity materials, the combination of the counter-rotating anchor paddle and the serrated disk can form a "compression-tearing-stretching" composite effect, thereby increasing the mixing torque and thus improving the material mixing efficiency.

[0121] As an example, when dealing with high-viscosity materials such as silicone rubber and hot melt adhesive, the first stirring section 420 and the second stirring section 620 can both be set as stirring paddles, especially high-torque screw-belt or anchor-type stirring paddles. Through low-speed, strong shear stirring, local overheating of the material caused by high-speed stirring can be reduced, ensuring that the material is fully mixed and the performance is stable.

[0122] If low-viscosity, easily dispersed liquid materials, such as water-based paints and cosmetic emulsions, are to be processed, the first stirring section 420 and the second stirring section 620 can both be constructed as stirring discs. The dual stirring disc structure can give full play to its advantages. Through the centrifugal force generated by high-speed rotation and the strong shear force of the serrated edge, the particles can be quickly broken up to achieve fine dispersion and uniform mixing of the materials.

[0123] As an example, in a process that requires step-by-step material processing, such as the preparation of lithium battery electrode slurry, the first stirring section 420 can be set as a stirring disk, and its high-speed dispersion function can be used to quickly and evenly mix the active material, binder and solvent; the second stirring section 620 uses a stirring paddle to perform low-speed, long-term stirring to ensure the stability and consistency of the slurry.

[0124] For some processes that require extremely high mixing uniformity, such as the mixing of food additives, the first stirring section 420 and the second stirring section 620 can both be constructed as stirring paddles. The dual stirring paddle structure can form a complex three-dimensional flow field in the mixing chamber through different blade angles and speed differences, ensuring that every material can be fully stirred.

[0125] As an example, the first stirring section 420 and the second stirring section 620 can achieve deep coordination and process optimization of material processing through the combination of different structures. When the first stirring section 420 adopts a large-diameter stirring disk, the centrifugal force generated by high-speed rotation and the strong shear force of the serrated edge can instantly break up the agglomerated pigment particles or fiber bundles, thereby reducing the diameter of the material particles; while the second stirring section 620 is equipped with a spiral stirring paddle, which continuously promotes the material circulation at a lower speed, so that the dispersed particles are evenly distributed in the matrix, further improving the mixing uniformity. With this arrangement, in the preparation of lithium battery electrode slurry, the dispersion efficiency of active materials and binders can be significantly improved, while reducing the slurry viscosity.

[0126] In addition, stirring sections with different structures can also form spatial complementarity. For example, the turbine-type stirring disk at the top ejects the material downward through the oblique blades, and the frame-type stirring paddle at the bottom performs bottom stirring simultaneously. The two cooperate to construct a "spiral-vortex" composite flow field in the cavity, completely eliminating the dead corners of material deposition. For processes that require segmented temperature control, an anchor-type stirring paddle with a heating function can be used as the first stirring section 420 to perform preliminary melting and plasticization of the material; the second stirring section 620 uses a dispersion disk with a cooling channel to quickly take away heat while dispersing at high speed, accurately controlling the material temperature, and meeting the mixing needs of temperature-sensitive materials such as hot melt adhesives and biomedical materials.

[0127] In other embodiments, please refer to Figure 5 and Figure 6 The mixer has a first plane passing through the axis of the first main shaft 200 and the axis of the second rotating shaft 600. There are two first rotating shafts 400, and the two first rotating shafts 400 are symmetrical about the first plane.

[0128] It is understood that the two symmetrical first rotating shafts 400 exert stirring forces on the material from different directions when rotating. Due to the symmetrical arrangement of the two first rotating shafts 400, the stirring effect on the material inside the mixer is more balanced, avoiding the uneven mixing of the material due to insufficient stirring in some parts of the material.

[0129] For example, during the rubber mixing process, various additives (such as carbon black, sulfur, etc.) need to be fully mixed with the rubber matrix. The symmetrical first rotating shaft 400 can ensure that these additives are evenly dispersed in the rubber, thereby improving the performance consistency of the rubber product.

[0130] Furthermore, the rotation of the two symmetrical shafts creates a complex flow field within the mixer. The materials undergo multiple stretching, folding, and shearing processes within this flow field, promoting interpenetration and mixing between the different components. Just like in liquid mixing, the symmetrical impellers create multiple vortices, increasing the contact area between the liquids and improving mixing efficiency.

[0131] At the same time, the symmetrical arrangement of the first rotating shaft 400 can make the force on the mixer more balanced during operation. The centrifugal force, torque and other forces generated by the two rotating shafts offset or balance each other in space, reducing the vibration and noise caused by uneven force on the equipment.

[0132] For example, in a high-speed rotating mixer, if the rotating shaft is set asymmetrically, it may cause severe vibration of the equipment, affecting the normal operation and service life of the equipment. A symmetrical setting can effectively avoid this situation.

[0133] In the above solution, the two first rotating shafts 400, symmetrical about the first plane, operate in concert to form a more three-dimensional and complex mixing flow field. Within the mixer, the material is subjected to stirring forces of varying directions and intensities, undergoing multi-directional stretching, folding, and shearing. This significantly promotes interpenetration and mixing between the different components, effectively shortening mixing time and improving mixing uniformity. This allows for efficient mixing of both high-viscosity and low-viscosity materials, and materials of varying particle sizes.

[0134] The symmetrical layout ensures balanced forces on the equipment during operation. The centrifugal forces, torques and other forces generated by the two first rotating shafts 400 offset or balance each other, significantly reducing equipment vibration and noise, and reducing local overload and wear of various components due to uneven forces. This extends the service life of the equipment, reduces maintenance costs, and ensures stable and efficient operation of the equipment.

[0135] In other embodiments, please refer to Figure 3 、 Figure 4 and Figure 6 The first channel 210 has a first opening 211 , which passes through the outer circumference of the first main shaft 200 . A portion of the first ring gear 110 extends into the first opening 211 to engage with the first gear 410 .

[0136] In the above embodiment, the first gear 410 meshes with the first gear 410 in the first opening 211, fully utilizing the internal space of the first main shaft 200 and avoiding the need for additional transmission components external to the main shaft. This reduces the overall size of the mixer or related equipment. This improves the overall layout and facilitates the installation and arrangement of other components. Since the transmission structure no longer occupies additional external space, the placement of other functional components can be more flexibly arranged, improving the integration and space utilization of the equipment.

[0137] In the specific embodiment, please refer to Figure 1 、 Figure 2 and Figure 3 The present application also provides a stirring tank 900, which is clamped to the shell 100 through a clamp 901. The stirring tank has a stirring chamber, and the first stirring part 420 and the second stirring part 620 extend into the stirring chamber, which is easy to disassemble and use.

[0138] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0139] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0140] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

[0141] Although the embodiments of the present application have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A mixing machine, characterized in that: include: a housing, wherein an inner wall of the housing is provided with a first gear ring; a first main shaft rotatably disposed in the housing, wherein the first main shaft has a first passage therein, and the first passage extends along the axial direction of the first main shaft; a first power unit, cooperating with the first spindle power to drive the first spindle to rotate; A first rotating shaft is rotatably disposed in the first channel, and along the axial direction of the first rotating shaft, one end of the first rotating shaft is provided with a first gear meshing with the first gear ring, and the other end of the first rotating shaft is provided with a first stirring portion located outside the first channel.

2. The mixing machine according to claim 1, characterized in that There are multiple first channels and multiple first rotating shafts, each of which is disposed in the corresponding first channel. One end of each first rotating shaft is provided with the first gear, and multiple first gears are respectively engaged with the first gear ring.

3. The mixing machine according to claim 2, characterized in that At least some of the plurality of first gears are arranged at intervals along the axial direction of the first main shaft.

4. The mixing machine according to claim 1, characterized in that The first main shaft further comprises a second channel separated from the first channel, and the second channel extends along the axial direction of the first main shaft; The mixer further includes a second power unit and a second rotating shaft. Along the axial direction of the second rotating shaft, one end of the second rotating shaft is connected to the second power unit, and the other end of the second rotating shaft is provided with a second stirring portion located outside the second channel.

5. The mixing machine according to claim 4, characterized in that A second gear is provided at one end of the second rotating shaft in the axial direction of the second rotating shaft, and the power output end of the second power unit is constructed as a third gear meshing with the second gear. Along the axial direction of the first main shaft, the second gear and the first gear are arranged at intervals.

6. The mixing machine according to claim 5, characterized in that The mixer further includes a connecting portion and a first gear disc, wherein the connecting portion connects the first gear disc and the first main shaft along the axial direction of the first main shaft; The power output end of the first power unit is configured as a second sprocket, and the second sprocket is connected to the first sprocket via a chain.

7. The mixing machine according to claim 6, characterized in that The connecting portion has an accommodating space, and the second gear and the third gear are disposed in the accommodating space.

8. The mixing machine according to claim 4, characterized in that The first stirring part is configured as a stirring paddle or a stirring disk, and the second stirring part is configured as a stirring paddle or a stirring disk.

9. The mixing machine according to claim 4, characterized in that The mixer has a first plane passing through the axis of the first main shaft and the axis of the second rotating shaft. There are two first rotating shafts, and the two first rotating shafts are symmetrical about the first plane.

10. The mixing machine according to claim 1, characterized in that The first passage has a first opening that passes through the outer circumference of the first main shaft. A portion of the first gear ring extends into the first opening to mesh with the first gear.

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