Multilayer toothed stator-rotor grinding dispersing device

Abstract

The utility model belongs to the technical field of grinding dispersion equipment, and disclose a kind of multilayer tooth profile fixed rotor grinding dispersion device, including rack, driving motor, main shaft, grinding cavity, fixed rotor assembly, the driving motor is fixed in rack top, the one end of main shaft is connected with driving motor output end transmission, the grinding cavity is fixed on rack and is set on the outside of main shaft, the fixed rotor assembly includes by upper layer rotor, middle layer rotor, lower layer rotor, which are coaxially arranged from top to bottom in sequence, and the stator matched with three layers of rotor one by one, the upper layer rotor, middle layer rotor, lower layer rotor are fixed on main shaft and rotate synchronously with main shaft, the utility model is provided with self-cleaning component, annular spray main pipe can clean the residual material attached to cavity inner wall comprehensively, layered spray branch pipe aims at each layer stator tooth surface and grinding gap, accurately removes the jammed material in tooth groove and tiny gap, and solves the problem that material is easily hidden in fixed rotor tooth profile structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding and dispersing equipment, specifically a multi-layer toothed stator and rotor grinding and dispersing device. Background Technology

[0002] In modern industrial production fields such as fine chemicals, new energy materials, food and pharmaceuticals, and coatings and inks, the grinding and dispersion precision, particle uniformity, and processing stability of materials directly determine the quality, performance, and pass rate of the final products. Currently, most mainstream grinding and dispersion equipment on the market adopts a through-cavity structure design, which has obvious technical shortcomings. The multi-level cavities are interconnected without independent partitions, resulting in chaotic material processing levels. Large particles that are not fully refined are easily mixed with the fluid flow and enter the finished product discharge end, leading to large batch material quality differences and extremely poor finished product stability. At the same time, existing grinding and dispersion equipment is not convenient for cleaning the internal structure. The core grinding area of ​​the stator and rotor has dense tooth grooves and tiny grinding gaps, making it easy for fine materials to get stuck and remain. It is impossible to completely remove the material residue from the gaps and tooth surfaces. Long-term accumulation of residual materials can easily cause caking and mold growth, which can easily lead to cross-contamination of materials in continuous batch production. Furthermore, long-term adhesion of residual materials can wear down the stator and rotor teeth, shorten the service life of the equipment, and increase the probability of equipment failure.

[0003] Therefore, a multi-layer toothed stator and rotor grinding and dispersing device is proposed to address the above problems. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a multi-layer toothed stator and rotor grinding and dispersing device. It is equipped with a self-cleaning component and relies on the cooperative structure of the annular spray main pipe and the layered spray branch pipes to achieve flexible and precise cleaning of the entire area or a single cavity, thereby improving the convenience of internal cleaning and the cleanliness of production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer toothed stator and rotor grinding and dispersing device, comprising a frame, a drive motor, a main shaft, a grinding chamber, and a stator and rotor assembly. The drive motor is fixed to the top of the frame, and one end of the main shaft is connected to the output end of the drive motor. The grinding chamber is fixed on the frame and sleeved on the outside of the main shaft. The stator and rotor assembly includes an upper rotor, a middle rotor, and a lower rotor arranged coaxially from top to bottom, and stators corresponding to each of the three rotor layers. The upper rotor, middle rotor, and lower rotor are all fixed on the main shaft and rotate synchronously with the main shaft. The stators are all fixed to the inner wall of the grinding chamber. The three rotor layers and their corresponding... The stators form independent coarse grinding chambers, fine grinding chambers, and precision grinding chambers, with differentiated rotor tooth profile parameters for each level. A self-cleaning component is provided on the outside of the grinding chamber, which includes a main water pipe, an annular spray main pipe, and layered spray branch pipes. One end of the main water pipe is connected to an external cleaning fluid supply device. The inlet ends of the annular spray main pipe and the layered spray branch pipes are connected to the main water pipe, and valves are provided at the connection points. The annular spray main pipe is located at the top of the grinding chamber, and the spray nozzles correspond to the inner wall of the grinding chamber. The layered spray branch pipes are respectively set to correspond to the coarse grinding chamber, fine grinding chamber, and precision grinding chamber, and the spray nozzles of the layered spray branch pipes are directly facing the outer tooth surfaces of the three stators.

[0006] Preferably, the upper rotor has a large tooth pitch, large tooth height, and small tilt angle tooth profile; the middle rotor has a medium tooth pitch, medium tooth height, and medium tilt angle tooth profile; and the lower rotor has a small tooth pitch, small tooth height, and large tilt angle tooth profile.

[0007] Preferably, the mating clearances of the upper rotor, middle rotor, lower rotor, and corresponding stator decrease progressively, forming a gradient grinding clearance structure.

[0008] Preferably, the grinding chamber has a feed inlet at the top and a discharge outlet at the bottom, with the feed inlet facing the coarse grinding chamber and the discharge outlet connected to the fine grinding chamber.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model is equipped with a self-cleaning component. The annular spray main pipe can thoroughly clean the residual materials attached to the inner wall of the cavity, and the layered spray branch pipes are aligned with the stator tooth surfaces and grinding gaps of each layer to accurately remove the stuck materials that are difficult to clean in the tooth grooves and tiny gaps, thus solving the problem of easy material accumulation in the stator and rotor tooth structure.

[0010] 2. This utility model independently controls the water flow through valves, allowing for the selection of full-area cleaning or single-chamber cleaning as needed. It offers high cleaning flexibility and thorough results, effectively preventing cross-contamination of batch materials caused by mold growth and clumping of residual materials, and facilitating the cleaning of the internal components of the dispersion device. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the grinding chamber of this utility model; Figure 3 This is a schematic diagram of the stator and rotor assembly structure of this utility model; Figure 4 This is a schematic diagram of the self-cleaning component structure of this utility model.

[0012] In the diagram: 1. Frame; 2. Drive motor; 3. Main shaft; 4. Grinding chamber; 5. Stator and rotor assembly; 51. Upper rotor; 52. Middle rotor; 53. Lower rotor; 54. Stator; 6. Self-cleaning assembly; 61. Main water pipe; 62. Annular spray main pipe; 63. Layered spray branch pipe; 7. Feed inlet; 8. Discharge outlet. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] The embodiments of this utility model will be described below based on its overall structure.

[0015] like Figures 1 to 4As shown, this utility model provides a multi-layer toothed stator and rotor grinding and dispersing device, including a frame 1, a drive motor 2, a main shaft 3, a grinding chamber 4, and a stator and rotor assembly 5. The drive motor 2 is fixed to the top of the frame 1, and one end of the main shaft 3 is connected to the output end of the drive motor 2 for transmission. The drive motor 2 provides power to the entire rotating component. The grinding chamber 4 is fixed on the frame 1 and sleeved on the outside of the main shaft 3 to form a grinding working space. The stator and rotor assembly 5 includes an upper rotor 51, a middle rotor 52, and a lower rotor 53 arranged coaxially from top to bottom. 3. A stator 54, corresponding to each of the three rotor layers, is also present. The upper rotor 51, middle rotor 52, and lower rotor 53 are all fixed to the main shaft 3 and rotate synchronously with it. The stators 54 are all fixed to the inner wall of the grinding chamber 4. The three rotor layers and their corresponding stators 54 form independent coarse grinding chambers, fine grinding chambers, and precision grinding chambers, respectively. The tooth profile parameters of each rotor layer are differentiated, and the three grinding chambers are independent of each other. The grinding conditions and material states at each stage do not affect each other, ensuring the process stability of each grinding stage. The outer side of the grinding chamber 4 is equipped with… The self-cleaning component 6 includes a main water pipe 61, an annular spray main pipe 62, and layered spray branch pipes 63. After operation, it can clean the internal components of the grinding chamber 4 without manual disassembly, reducing labor intensity. One end of the main water pipe 61 is connected to an external cleaning fluid supply device. The inlet ends of the annular spray main pipe 62 and the layered spray branch pipes 63 are connected to the main water pipe 61, and valves are installed at the connection points. The valves can achieve branch control, allowing individual opening of the top spray or layered tooth surface spray, or opening all of them to clean the grinding chamber. 4. Comprehensive internal cleaning: The annular spray main pipe 62 is set at the top of the grinding chamber 4, and the spray nozzles correspond to the inner wall of the grinding chamber 4. The spray nozzles spray and rinse the inner wall of the grinding chamber 4 in all directions to remove residual materials attached to the inner wall of the chamber. The layered spray branch pipes 63 are respectively set to correspond to the coarse grinding chamber, fine grinding chamber and fine grinding chamber. The spray nozzles of the layered spray branch pipes 63 are directly facing the outer tooth surface of the three layers of stator 54. The spray nozzles are precisely aligned with the outer tooth surface of each layer of stator 54 to specifically clean the fine materials stuck and residual in the stator and rotor tooth grooves and grinding gaps.

[0016] In this embodiment, the upper rotor 51 adopts a tooth profile with large tooth pitch, large tooth height, and small tilt angle; the middle rotor 52 adopts a tooth profile with medium tooth pitch, medium tooth height, and medium tilt angle; and the lower rotor 53 adopts a tooth profile with small tooth pitch, small tooth height, and large tilt angle. The three-stage tooth profile changes gradually from coarse to fine, and the grinding force is progressive, resulting in a more uniform particle size distribution of the material and effectively improving the quality of the final product.

[0017] The mating clearances of the upper rotor 51, middle rotor 52, lower rotor 53 and corresponding stator 54 decrease step by step, forming a gradient grinding clearance structure. The grinding force gradually increases, avoiding the intense heating of the material caused by strong grinding in the initial stage and reducing the heating rate of the material.

[0018] The grinding chamber 4 has a feed inlet 7 at the top and a discharge outlet 8 at the bottom. The feed inlet 7 is directly opposite the coarse grinding chamber, and the discharge outlet 8 is connected to the fine grinding chamber, so that the material can fall naturally by its own weight.

[0019] The working principle and process of a multi-layer toothed stator and rotor grinding and dispersing device: After the material is fed into the cavity through the feed inlet 7, it first enters the coarse grinding cavity to complete the primary processing; then, under the combined action of gravity and the centrifugal force of the rotor rotation, the material naturally flows downward into the middle fine grinding cavity for secondary processing; finally, it flows into the lower fine grinding cavity to complete the ultimate fine grinding. The finished material is finally discharged through the discharge port at the bottom of the cavity connected to the fine grinding cavity. After the equipment stops or after batch operation is completed, the self-cleaning component 6 can realize fully automatic cleaning operation. The self-cleaning component 6 consists of a main water pipe 61, an annular spray main pipe 62, and layered spray branch pipes 63. The main water pipe 61 is externally connected to... The external cleaning fluid supply equipment controls the water flow through valves. After the cleaning mode is activated, the cleaning fluid is diverted from the main water pipe 61 to the annular spray main pipe 62 and the layered spray branch pipes 63. The annular spray main pipe 62, located at the top of the grinding chamber 4, sprays and rinses the inner wall of the grinding chamber 4 from all directions through the spray nozzles, removing residual materials adhering to the inner wall of the chamber. The three-part layered spray branch pipes 63 are respectively arranged for the coarse grinding chamber, fine grinding chamber, and fine grinding chamber. The spray nozzles are precisely aligned with the outer tooth surface of each layer of stator 54, specifically cleaning the stator and rotor tooth grooves and grinding gaps where fine materials are stuck or remaining, achieving precise cleaning of the entire internal area and layers of the equipment, which facilitates the cleaning of the internal part of the dispersion device.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer toothed stator and rotor grinding and dispersing device, characterized in that: The system includes a frame (1), a drive motor (2), a spindle (3), a grinding chamber (4), and a stator-rotor assembly (5). The drive motor (2) is fixed to the top of the frame (1). One end of the spindle (3) is connected to the output end of the drive motor (2). The grinding chamber (4) is fixed on the frame (1) and sleeved on the outside of the spindle (3). The stator-rotor assembly (5) includes an upper rotor (51), a middle rotor (52), and a lower rotor (53) arranged coaxially from top to bottom, and a stator (54) that corresponds to each of the three rotors. The upper rotor (51), middle rotor (52), and lower rotor (53) are all fixed on the spindle (3) and rotate synchronously with the spindle (3). The stator (54) is fixed to the inner wall of the grinding chamber (4). The three rotors and their corresponding stators (54) form a series of shapes. The grinding chamber (4) is divided into independent coarse grinding chamber, fine grinding chamber and fine grinding chamber, and the rotor tooth profile parameters of each level are set differently. A self-cleaning component (6) is provided on the outside of the grinding chamber (4). The self-cleaning component (6) includes a main water pipe (61), an annular spray main pipe (62) and a layered spray branch pipe (63) device. One end of the main water pipe (61) is connected to an external cleaning liquid supply device. The water inlet end of the annular spray main pipe (62) and the layered spray branch pipe (63) are connected to the main water pipe (61), and a valve is provided at the connection. The annular spray main pipe (62) is set at the top of the grinding chamber (4), and the spray nozzle corresponds to the inner wall of the grinding chamber (4). The layered spray branch pipe (63) is set to correspond to the coarse grinding chamber, fine grinding chamber and fine grinding chamber respectively. The spray nozzle of the layered spray branch pipe (63) is directly facing the outer tooth surface of the three-layer stator (54).

2. The multi-layer toothed stator and rotor grinding and dispersing device according to claim 1, characterized in that: The upper rotor (51) adopts a tooth profile with large tooth pitch, large tooth height, and small tilt angle; the middle rotor (52) adopts a tooth profile with medium tooth pitch, medium tooth height, and medium tilt angle; and the lower rotor (53) adopts a tooth profile with small tooth pitch, small tooth height, and large tilt angle.

3. The multi-layer toothed stator and rotor grinding and dispersing device according to claim 2, characterized in that: The mating clearances of the upper rotor (51), middle rotor (52), lower rotor (53) and the corresponding stator (54) decrease step by step, forming a gradient grinding clearance structure.

4. The multi-layer toothed stator and rotor grinding and dispersing device according to claim 3, characterized in that: The grinding chamber (4) has a feed inlet (7) at the top and a discharge outlet (8) at the bottom. The feed inlet (7) is directly opposite the coarse grinding chamber, and the discharge outlet (8) is connected to the fine grinding chamber.

Images