Turbine with rod pin and sand mill thereof

Abstract

The utility model provides a turbine with a rod pin and a sand mill thereof, the turbine comprises a turbine body, the turbine body is provided with a plurality of axial runner holes and a plurality of radial runner holes, the radial runner holes are in one-to-one correspondence with the axial runner holes, one end of each radial runner hole is communicated with the peripheral surface of the turbine body, and the other end of each radial runner hole is communicated with the corresponding peripheral runner hole; and a plurality of rod pins are uniformly distributed on the peripheral surface of the turbine body at intervals. The sand mill adopts the turbine in a rotor component. On the basis of an existing turbine structure, the axial flow channel holes and the radial flow channel holes in the turbine are reasonably distributed, and the rod pins are integrated on the peripheral face of the turbine. When the turbine rotates, shearing force is provided for grinding, so that materials produced by utilizing the turbine to grind can have high roundness and high uniformity, meanwhile, the particle size of the materials is small, the grinding efficiency is high, and meanwhile, the grinding machine has the machining advantages of a turbine type sand mill and a rod pin type sand mill.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand mill technical field especially, it is a kind of vortex and sand mill thereof with bar pin. BACKGROUND

[0002] Sand mill can be divided into four angular disc piece structure, vortex type structure and bar pin structure according to sand mill rotor structure.In vortex type sand mill, main shaft drives dispersion vortex to rotate at high speed, agitates the grinding medium in cylinder, so that grinding medium produces spiral flow and radial axial movement, thereby forcibly grinding and dispersing product, so that product reaches specified fineness and color saturation.Vortex type sand mill is usually used for processing low-viscosity material, and is usually used in MLCC, silicon-carbon negative electrode, etc., and is suitable for material needing high uniform dispersion.Meanwhile, vortex type sand mill grinding mode is relatively mild, and uniform shear force can be generated, so that material particle shape is not easy to be damaged in processing process, and the roundness of material is helped to be maintained.

[0003] And the principle of bar pin type sand mill is that first stir raw material is sent into grinding cavity of main machine, grinding cavity is filled with required grinding medium zirconium beads, grinding product is impacted by dispersed particles to generate shear force, to achieve dispersion effect, and then dispersed material and grinding medium are separated by separating device and output, and bar pin type sand mill is suitable for nanometer grinding large-flow continuous type and circulation type production.Bar pin type sand mill is suitable for processing high-viscosity material, and can use frequency conversion and non-frequency conversion control mode to grind product, and grinding effect is high.Bar pin type sand mill is suitable for material with particle size developing in nanometer direction, because its grinding mode more depends on physical impact and friction, and processing uniformity is also relatively high, but still slightly lower than vortex type sand mill.In roundness, because the grinding mode of bar pin type sand mill is relatively strong, shear, impact and grinding effect on material are stronger, so that the roundness of material can be influenced to a certain extent, and finer material particle size can be produced for material.

[0004] Therefore, the existing vortex type structure and bar pin type structure sand mill have advantages and disadvantages due to different rotor structures, how to design rotor mechanism to make material particle size smaller, effectively ensure the roundness and uniformity of material, and also have high grinding efficiency. INVENTION CONTENTS

[0005] The utility model wants to solve the technical problem: in order to overcome the insufficient of prior art, the utility model provides a kind of vortex and sand mill thereof with bar pin, vortex and bar pin two kinds of dispersion grinding structures are integrated on the rotor structure of sand mill, can further reduce particle diameter under the premise of maintaining the roundness and uniformity of material, efficiently produce superfine particles.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: a turbine with pins is installed on the rotor shaft of a sand mill, including a turbine body, wherein the turbine body has a mounting hole in the center and is fixed to the rotor shaft through the mounting hole; the turbine body has a plurality of axial flow channel holes, which penetrate both end faces of the turbine body and are evenly distributed in a ring around the axis of the turbine body; the turbine body also has a plurality of radial flow channel holes, which correspond one-to-one with the axial flow channel holes, one end of the radial flow channel hole is connected to the outer peripheral surface of the turbine body and the other end is connected to its corresponding circumferential flow channel hole; a plurality of pins are evenly distributed on the outer peripheral surface of the turbine body.

[0007] In the above solution, in order to address the shortcomings of traditional turbine or pin-type sand mills, the rotor design combines the turbine with pins. This allows the rotor to not only have the flow channel holes of the turbine, which enable the grinding media to generate swirling flow and radial-axial movement, but also the pins, which can generate shear force on the grinding media. This can effectively reduce the particle diameter and ensure the roundness and uniformity of the material, thereby efficiently producing ultrafine particles.

[0008] Furthermore, at least one pin is provided on the outer peripheral surface of the turbine body between two adjacent radial flow channel holes.

[0009] Preferably, two pins are provided on the outer peripheral surface of the turbine body between two adjacent radial flow channel holes, one pin being located near one end face of the turbine body and the other pin being located near the other end face of the turbine body.

[0010] Furthermore, the aforementioned rod pin and turbine body are integrally formed structures.

[0011] Furthermore, the turbine body and the pin can adopt a separate assembly structure. The turbine body has a through-groove for mounting, and a strip is fitted inside the mounting groove. The strip has a first positioning hole, and a second positioning hole is formed on the outer circumferential surface of the turbine body corresponding to the first positioning hole. One end of the pin is positioned and fixed by the first positioning hole and the second positioning hole.

[0012] Preferably, the pin is fixed to the turbine body and the insert through a threaded engagement, that is, the inner wall of the second positioning hole has an internal thread, and one end of the pin has an external thread that engages with the internal thread. During installation, the insert can be installed first in accordance with the mounting groove, and then the pin can be screwed in to lock and fix the three together.

[0013] Furthermore, along the radial direction of the turbine body, the cross-sectional area of ​​the axial flow channel holes gradually increases from the inside to the outside.

[0014] Further, the cross-sectional area of the radial flow channel hole gradually increases along the radial direction of the turbine body, and the minimum cross-sectional area of the radial flow channel hole is the same as the maximum cross-sectional area of the axial flow channel hole, that is, the radial flow channel hole is sequentially arranged at the outer end of the axial flow channel hole, and the axial flow channel hole is communicated with the outer side of the turbine body in the circumferential direction, so that the grinding medium carries the material to flow.

[0015] Preferably, the rod pin is a cylindrical structure.

[0016] A sand mill has a rotor structure, and the rotor structure comprises a rotating shaft and a plurality of turbines arranged on the rotating shaft, and the turbine is the above-mentioned turbine with a rod pin.

[0017] The turbine with a rod pin and the sand mill provided by the utility model have reasonable structure design, and on the basis of the existing turbine structure, the axial flow channel hole and the radial flow channel hole on the turbine are reasonably arranged, and the rod pin is integrated on the outer peripheral surface of the turbine. When the turbine rotates, shear force is provided for grinding, so that the material produced by using the turbine for grinding can have high roundness and high uniformity, the particle size of the material is small, the grinding efficiency is high, and the processing advantages of the turbine type sand mill and the rod pin type sand mill are simultaneously achieved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further explained in connection with the drawings and examples.

[0019] Figure 1 It is the front view of the utility model.

[0020] Figure 2 It is the side view of the utility model.

[0021] Figure 3 It is the perspective view of the utility model.

[0022] Figure 4 It is the perspective view of the utility model rod pin and turbine body adopt split type structure.

[0023] Figure 5 It is the perspective view of the utility model rod pin and turbine body adopt split type structure in one place when not installing rod pin.

[0024] In the drawing, 1 is a rod pin, 2 is a turbine body, 3 is an axial flow channel hole, 4 is a mounting hole, 5 is a radial flow channel hole, 6 is a fillet, 7 is a second positioning hole, and 8 is a first positioning hole. DETAILED DESCRIPTION

[0025] The utility model will be further described in detail in connection with the drawings. These drawings are all simplified schematic diagrams, and only schematically show the basic structure of the utility model, so they only show the structure related to the utility model, and the direction and reference (such as up, down, left, right, etc.) can only be used to help describe the features in the drawings. Therefore, the following detailed description is not in a limiting sense, and the scope of the claimed subject matter is only defined by the appended claims and their equivalents.

[0026] As Figures 1 to 3 The utility model discloses a turbine with a rod pin, which is an embodiment of the utility model. The embodiment is arranged on the rotor shaft of a sand mill and comprises a turbine body 2. The turbine body 2 is provided with a mounting hole 4 in the center. The turbine body 2 is fixed to the rotor shaft through the mounting hole 4, and the inner wall of the mounting hole 4 is designed with a key or a groove. The turbine body 2 is fixed to the rotor shaft through the key-groove cooperation. When the sand mill is working, the rotor shaft drives the turbine body 2 to rotate, thereby driving the grinding medium to grind the material.

[0027] The turbine body 2 is provided with 12 axial flow channel holes 3 which are evenly distributed in a ring shape around the axis of the turbine body 2. The axial flow channel holes 3 penetrate through the two side end faces of the turbine body 2. The axial flow channel holes 3 have a rotational direction relative to the axis of the turbine body 2, and the 12 axial flow channel holes 3 are all of the same rotational direction. Along the radial direction of the turbine body, the cross-sectional area of the axial flow channel holes 3 gradually increases from inside to outside. In the radial cross section of the turbine body 2, the cross sections of the 12 axial flow channel holes 3 form a counterclockwise rotational direction as shown in the figure. Figure 1

[0028] The turbine body 2 is also provided with a radial flow channel hole 5 corresponding to each axial flow channel hole 3. The radial flow channel hole 5 corresponds to the axial flow channel hole 3 one by one. One end of the radial flow channel hole 5 penetrates through the outer circumferential surface of the turbine body 2, and the other end penetrates through the corresponding circumferential flow channel hole. Along the radial direction of the turbine body, the cross-sectional area of the radial flow channel hole 5 gradually increases, and the minimum cross-sectional area of the radial flow channel hole 5 is the same as the maximum cross-sectional area of the axial flow channel hole 3, that is, the radial flow channel hole 5 is sequentially arranged at the outer end of the axial flow channel hole 3, and the axial flow channel hole 3 is communicated with the circumferential outer side of the turbine body, so as to facilitate the grinding medium to carry the material to flow.

[0029] ​The above structure, when the turbine body 2 is driven to rotate by the rotor shaft, can drive the grinding medium to generate rotational flow and axial radial flow. On this basis, the outer periphery of the turbine body 2 of the embodiment is uniformly and spacedly provided with the pin 1. The pin 1 is in a cylindrical structure. The position distribution of the pin 1 corresponds to the radial flow channel hole 5. Two pins 1 are arranged on the outer periphery of the turbine body 2 between two adjacent radial flow channel holes 5, one of which is arranged close to one side end surface of the turbine body 2, and the other is arranged close to the other side end surface of the turbine body 2. The pin 1 is arranged on both sides of the radial flow channel hole 5 in the axial direction, so that the pin 1 does not interfere with the generation of rotational flow and axial radial flow, and can also exert shear force on the grinding medium and the material in the rotational flow and axial radial flow. Therefore, the sand mill provided with the turbine of the embodiment not only has the advantages of the turbine type sand mill, but also has the advantages of the pin type sand mill, so that the particle size of the material is further reduced, the product fineness is further improved on the basis of turbine grinding, and the production efficiency is improved.

[0030] The pin-equipped turbine thus designed can overcome the shortcomings of the traditional turbine type or pin 1 type sand mill. In the rotor design, the turbine and the pin 1 are combined, so that the rotor not only has the flow channel hole of the turbine, so that the grinding medium can generate rotational flow and axial radial motion, but also has the pin 1, which can generate shear force on the grinding medium, effectively reduce the particle diameter, and ensure the roundness and uniformity of the material, thereby efficiently producing ultra-fine particles.

[0031] In the production and assembly of the above turbine, different assembly structures can be used. For example, Figures 1 to 3 The pin 1 and the turbine body 2 can be designed as an integral molding structure, that is, the pin 1 structure is directly integrated and molded with the axial flow channel hole 3 and the radial flow channel hole 5 when the turbine body 2 is produced.

[0032] The turbine body 2 and the pin 1 can also adopt a split combination structure. For example, Figure 4 and Figure 5 According to the position of the pin 1, an installation groove is provided through the turbine body 2. The installation groove is provided with a batten 6. The radial cross section of the batten 6 can adopt but is not limited to a trapezoidal shape, an I-shaped structure, etc. The installation groove and the batten 6 can adopt but are not limited to interference fit, etc. The batten 6 is provided with a first positioning hole 8, and the outer periphery of the turbine body 2 is provided with a second positioning hole 7 corresponding to the first positioning hole 8.

[0033] The fixing of the pin 1 and the turbine body 2 and the insert 6 is realized by screwing. The inner wall of the second positioning hole 7 has an internal thread, and one end of the pin 1 has an external thread matched with the internal thread. During installation, the insert 6 can be installed in the corresponding installation groove first, and then the pin 1 is screwed in, so that the three are fixed and locked in position. The structure of the split design can be processed and modified by using the existing rotor structure of the turbine type sand mill. On the basis of the original turbine, the installation groove is opened, the insert 6 and the pin 1 are processed, and then the three are positioned and assembled to form a new turbine with the pin 1, so as to realize the modification and upgrading of the sand mill and meet the requirements of roundness, uniformity, fineness and efficiency of production.

[0034] The embodiment also provides a sand mill. The sand mill has a rotor structure, the rotor structure includes a rotating shaft and a plurality of turbines fixed on the rotating shaft, the turbines have intervals between them, and the turbine adopts the above-mentioned turbine with a pin, so as to integrate and balance the advantages and disadvantages of the turbine type and the pin type sand mill. When the turbine rotates, the pin 1 provides reasonable shearing force for grinding, so that the material produced by using the turbine for grinding can have high roundness and high uniformity, and the particle size of the material is small and the grinding efficiency is high, and the turbine type sand mill and the pin type sand mill have the processing advantages.

[0035] Based on the above ideal embodiments according to the utility model, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A turbo with a rod pin provided on a rotor shaft of a sand mill, characterized in that: It comprises a turbine body (2) with a mounting hole (4) in the center, and the turbine body (2) is fixed with the rotor shaft through the mounting hole (4); A plurality of axial flow channel holes (3) are formed on the turbine body (2), which penetrate through the two side end faces of the turbine body (2) and are evenly distributed in a ring shape around the axis of the turbine body (2); A plurality of radial flow channel holes (5) are also formed on the turbine body (2), which correspond to the axial flow channel holes (3) one by one, and one end of the radial flow channel hole (5) penetrates through the outer peripheral surface of the turbine body (2), and the other end penetrates through the corresponding circumferential flow channel hole; A plurality of pin bars (1) are evenly distributed on the outer peripheral surface of the turbine body (2).

2. A turbine with a rod pin as claimed in claim 1, characterized in that: At least one pin bar (1) is arranged on the outer peripheral surface of the turbine body (2) between two adjacent radial flow channel holes (5).

3. A turbine with a rod pin as claimed in claim 2, characterized in that: Two pin bars (1) are arranged on the outer peripheral surface of the turbine body (2) between two adjacent radial flow channel holes (5), one of which is arranged close to one side end face of the turbine body (2), and the other is arranged close to the other side end face of the turbine body (2).

4. A turbine with a rod pin as claimed in claim 1, characterized in that: The pin bar (1) and the turbine body (2) are integrally formed.

5. A turbine with a rod pin as claimed in claim 1, characterized in that: A mounting groove is formed through the turbine body (2), a batten (6) is arranged in the mounting groove, a first positioning hole (8) is formed on the batten (6), a second positioning hole (7) is formed on the outer peripheral surface of the turbine body (2) corresponding to the first positioning hole (8), and one end of the pin bar (1) is positioned and fixed through the first positioning hole (8) and the second positioning hole (7).

6. A turbine with a rod pin as claimed in claim 5, characterized in that: The inner wall of the second positioning hole (7) has an internal thread, and one end of the pin bar (1) has an external thread matched with the internal thread.

7. A turbine with a rod pin as claimed in claim 1, characterized in that: The cross-sectional area of the axial flow channel hole (3) gradually increases from inside to outside along the radial direction of the turbine body.

8. A turbine with a rod pin as claimed in claim 7, characterized in that: Along the radial direction of the turbine body, the cross-sectional area of the radial flow channel hole (5) gradually increases, and the minimum cross-sectional area of the radial flow channel hole (5) is the same as the maximum cross-sectional area of the axial flow channel hole (3).

9. A turbine with a rod pin as claimed in claim 1, characterized in that: The pin bar (1) is a cylindrical structure.

10. A sand mill characterized by: The rotor structure comprises a rotating shaft and a plurality of turbines arranged on the rotating shaft, and the turbine adopts the pin bar turbine according to any one of claims 1 to 9.

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