Grinding equipment

Abstract

The utility model provides grinding equipment. The grinding equipment comprises a rotating shaft and a plurality of grinding paddles. The grinding paddle comprises blades and a sleeve, the sleeve is arranged on the rotating shaft in a sleeving mode and fixed relative to the rotating shaft, the blades are arranged on the outer side wall of the sleeve, the blades and the sleeve are integrally formed, and the blades are obliquely arranged relative to the central axis of the sleeve. According to the grinding equipment, the blades are arranged on the outer side wall of the sleeve, the sleeve and the blades are integrally formed, the sleeve is arranged on the rotating shaft in a sleeving mode, the blades are fixed through the sleeve, connection between the grinding paddle and the rotating shaft is simplified, through holes are prevented from being formed in the blades, and the structural strength of the blades is improved; the connection stability of the blades and the rotating shaft is improved, so that the problem that the blades are broken during stirring is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to a grinding equipment. Background Art

[0002] In the existing grinding equipment, through holes are formed in the grinding paddles, and the grinding paddles are fixed to the rotating shaft through connecting pieces. The installation process of the grinding paddles is cumbersome, and the structural strength of the grinding paddles is low. Summary of the Utility Model

[0003] The utility model provides a grinding equipment to solve the problems of cumbersome installation process and low structural strength of the existing grinding paddles.

[0004] The utility model provides a grinding equipment. The grinding equipment includes a rotating shaft and a plurality of grinding paddles. The grinding paddle includes a blade and a sleeve. The sleeve is sleeved on the rotating shaft and is fixed relative to the rotating shaft. The blade is arranged on the outer side wall of the sleeve and is integrally formed with the sleeve. The blade is inclined relative to the central axis of the sleeve.

[0005] In some embodiments, the grinding paddle is configured as a ceramic paddle.

[0006] In some embodiments, the connection between the blade and the sleeve is in a circular arc transition.

[0007] In some embodiments, the peripheral side of the blade is configured as an arc structure.

[0008] In some embodiments, the end faces between two adjacent sleeves are hermetically connected.

[0009] In some embodiments, the grinding equipment further includes a stop member. A stop groove is formed on the outer side wall of the rotating shaft, and a limiting groove is formed on the inner side wall of the sleeve. The stop member is arranged in the stop groove and the limiting groove, or a limiting protrusion is arranged on one of the outer side wall of the rotating shaft and the inner side wall of the sleeve, and a limiting groove is arranged on the other. The limiting protrusion is arranged in the limiting groove.

[0010] In some embodiments, the limiting groove is configured as an arc-shaped groove.

[0011] In some embodiments, the rotating shaft includes a feeding shaft section and a grinding shaft section arranged along the axial direction. The grinding paddle includes a feeding paddle and a stirring paddle. The feeding paddle is arranged on the feeding shaft section, and the stirring paddle is arranged on the grinding shaft section.

[0012] In some embodiments, along the radial direction of the rotating shaft, the extending length of the blade of the pusher paddle is greater than that of the blade of the stirring paddle, and / or, in a plane perpendicular to the central axis of the rotating shaft, the orthographic projection area of the blade of the pusher paddle is greater than that of the blade of the stirring paddle.

[0013] In some embodiments, the blades of multiple grinding paddles are arranged in a spiral pattern.

[0014] In some embodiments, the blades of two adjacent pusher paddles are staggered at 90°.

[0015] In some embodiments, the stirring paddle includes a first stirring paddle and a second stirring paddle. The blades of the first stirring paddle and the second stirring paddle are offset in the axial direction of the rotating shaft, and the inclination directions relative to the central axis of the sleeve are opposite.

[0016] In some embodiments, the grinding paddle includes multiple stirring components. The stirring component includes the first stirring paddle and the second stirring paddle. The grinding device further includes a spacer sleeve, and the spacer sleeve is disposed between two adjacent stirring components.

[0017] In some embodiments, the grinding device further includes a baffle member. The baffle member is sleeved on the grinding shaft section, and the baffle member is used to divide the grinding shaft section into multiple grinding sub-shaft sections, and each grinding sub-shaft section is provided with multiple stirring components.

[0018] In some embodiments, the baffle member is provided with a through hole penetrating along the axial direction of the rotating shaft.

[0019] In some embodiments, the grinding device further includes a discharging paddle disposed on the rotating shaft, and the discharging paddle is located at the end of the grinding shaft section far from the pusher shaft section.

[0020] In the grinding device provided by the present utility model, the blade is disposed on the outer side wall of the sleeve. The sleeve and the blade are integrally formed. The sleeve is sleeved on the rotating shaft, and the blade is fixed through the sleeve, which simplifies the connection between the grinding paddle and the rotating shaft, and avoids opening through holes in the blade, improves the structural strength of the blade, improves the connection stability between the blade and the rotating shaft, and thus avoids the problem of blade breakage during stirring. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the grinding equipment provided by the embodiment of the present utility model.

[0023] Figure 2 It is a schematic structural diagram of the grinding paddle provided by the embodiment of the present utility model.

[0024] Figure 3 It is a schematic structural diagram of the rotating shaft and the grinding paddle provided by the embodiment of the present utility model.

[0025] Main reference numerals description: grinding equipment 1; rotating shaft 10; feeding shaft section 101; grinding shaft section 102; grinding sub-shaft section 1021; stopper 11; stopper groove 12; grinding paddle 20; sleeve 21; limiting groove 211; blade 22; feeding paddle 201; stirring paddle 202; stirring assembly 2020; first stirring paddle 2021; second stirring paddle 2022; spacer sleeve 31; partitioning member 32; through hole 321; discharging paddle 33; pressing member 34; driver 40; inclination angle α.

[0026] The following specific embodiments will further illustrate the present utility model in conjunction with the above-mentioned accompanying drawings. Specific embodiments

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present utility model fall within the scope of protection of the present utility model.

[0028] Referring to "embodiment" or "embodiment mode" herein means that the specific features, structures or characteristics described in conjunction with the embodiment or embodiment mode can be included in at least one embodiment of the present utility model. The phrase appears at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] It should be noted that the terms in the specification and claims of the present invention and the above-mentioned drawings are only for describing specific embodiments and are not intended to limit the present invention. The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order. The term "and / or" used in the specification and claims of the present invention refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0030] Please also read Figure 1 , Figure 2 as well as Figure 3 , Figure 1 It is a structural schematic diagram of a grinding device 1 provided in an embodiment of the utility model; Figure 2 It is a schematic diagram of the structure of the grinding paddle 20 provided in an embodiment of the utility model; Figure 3 1 is a schematic diagram of the structure of the rotating shaft 10 and the grinding paddle 20 provided in an embodiment of the utility model. The grinding device 1 includes a rotating shaft 10, a plurality of grinding paddles 20, a driver 40 and a grinding cylinder (not shown). The grinding cylinder is used to accommodate materials and grinding media. The rotating shaft 10 and the grinding paddle 20 are accommodated in the grinding cylinder. The grinding paddle 20 is arranged on the rotating shaft 10. The driver 40 is transmission-connected to the rotating shaft 10 and is used to drive the rotating shaft 10 to rotate relative to the grinding cylinder. The rotating shaft 10 is used to drive the grinding paddle 20 to rotate so that the grinding paddle 20 stirs the material and the grinding medium, thereby causing the grinding medium to grind the material.

[0031] The grinding paddle 20 includes a sleeve 21 and blades 22. The sleeve 21 is sleeved on the rotating shaft 10 and fixed relative to the rotating shaft 10. The blades 22 are arranged on the outer wall of the sleeve 21 away from the rotating shaft 10, and are integrally formed with the sleeve 21. The blades 22 are inclined relative to the central axis of the sleeve 21 so as to push the material to move along the axial direction of the rotating shaft 10 when the grinding paddle 20 rotates. In this embodiment, the sleeve 21 and the blades 22 are integrally formed, and the sleeve 21 is sleeved on the rotating shaft 10. The blades 22 are fixed by the sleeve 21, which simplifies the connection between the grinding paddle 20 and the rotating shaft 10, avoids the need to provide through holes on the blades 22, improves the structural strength of the blades 22, and improves the connection stability between the blades 22 and the rotating shaft 10, thereby avoiding the problem of the blades 22 breaking during stirring.

[0032] In this embodiment, the end faces of two adjacent sleeves 21 are hermetically connected. The two adjacent sleeves 21 are arranged in contact with each other, and the end faces of the two sleeves 21 are fitted together. It can be understood that since the existing rotating shaft needs to bear complex forces, the rotating shaft usually adopts a metal shaft. In the existing structure, the blade is directly connected to the rotating shaft. When the rotating shaft is working, the metal debris generated by the friction between the blade and the rotating shaft easily enters the grinding cylinder through the connection gap between the blade and the sleeve, contaminating the material. In the present utility model, the sleeve 21 and the blade 22 are integrally formed, and the end faces of two adjacent sleeves 21 are hermetically connected, preventing the metal debris generated during the operation of the rotating shaft 10 from entering the grinding cylinder, thus avoiding the contamination of the material by the metal debris and also avoiding the debris generated due to the relative movement between the blade 22 and the sleeve 21. Among them, the end face of the sleeve 21 can be processed by grinding to make the end face a flat surface, so that a hermetic connection is formed after the adjacent sleeves 21 are in contact. The grinding paddle 20 is configured as a ceramic paddle to prevent the grinding paddle 20 from generating metal debris during operation.

[0033] The connection between the blade 22 and the sleeve 21 is provided with an arc transition to reduce the stress concentration at the connection between the blade 22 and the sleeve 21, improve the connection strength between the blade 22 and the sleeve 21, and prevent cracks from occurring in the grinding paddle 20 during operation. The circumferential side of the blade 22 is configured as an arc structure, reducing the probability of the edge of the blade 22 being broken, and preventing the edges of the circumferential side of the blade 22 from being broken during contact with the grinding medium due to the weak structure. The grinding paddle 20 can be manufactured by a sintering process. The circumferential side of the blade 22 being provided with an arc structure can also improve the stress distribution uniformity of the blade 22 during sintering, improve the yield rate and manufacturing quality of the sintered grinding paddle 20, and reduce the production cost of the grinding paddle 20. Among them, the arc structure can be configured as a rounded corner. For example, the edges on the side of the blade 22 away from the sleeve 21 are set as rounded corners, and the edges of the blade 22 in the radial direction of the rotating shaft 10 are set as rounded corners. The size of the rounded corner can be specifically set according to the actual needs of the blade 22, and is not specifically limited in the present utility model. Exemplarily, the size of the rounded corner can be set to half of the thickness of the blade 22.

[0034] The number of blades 22 on each sleeve 21 can be set to multiple. In this embodiment, two blades 22 are provided on each sleeve 21, so that there is enough clearance between the two blades 22 on the same sleeve 21 for the material to pass through, ensuring the material passing property of the grinding paddle 20 and enabling the blades 22 of the grinding paddle 20 to push the material to move continuously. The two blades 22 are arranged oppositely along the radial direction of the sleeve 21. Among them, the number of blades 22 on each sleeve 21 can be set according to actual needs and is not specifically limited in the present utility model. For example, the number of blades 22 on each sleeve 21 can also be three, four, five, etc. The number of blades 22 on different sleeves 21 can be the same or different.

[0035] Exemplarily, the blade 22 can be in a flat plate shape, and the inclination angle α of the blade 22 relative to the central axis of the sleeve 21 is the included angle between the extending direction of the blade 22 and the central axis of the sleeve 21. The size of the inclination angle α of the blade 22 relative to the central axis of the sleeve 21 can be specifically set according to actual needs and is not specifically limited in the present utility model. In some embodiments, the blade 22 can also be arranged in a spiral shape, and the inclination angle of the blade 22 relative to the central axis of the sleeve 21 is the included angle between the tangent direction of the blade 22 and the central axis of the sleeve 21. In some embodiments, the blades 22 of multiple grinding paddles 20 can be arranged in a spiral layout. The projections of the blades 22 of two adjacent grinding paddles 20 on the plane perpendicular to the central axis of the rotating shaft 10 are misaligned.

[0036] The grinding device 1 further includes a stopper 11. A stopper groove 12 is formed on the outer sidewall of the rotating shaft 10. A limiting groove 211 is formed on the inner sidewall of the sleeve 21. The stopper 11 is arranged in the stopper groove 12 and the limiting groove 211, so that the grinding paddle 20 and the rotating shaft 10 are fixed along the circumferential direction of the rotating shaft 10. Specifically, the stopper 11 is configured as a columnar structure. After the stopper 11 is placed in the stopper groove 12, the side of the stopper 11 away from the central axis of the rotating shaft 10 protrudes relative to the rotating shaft 10. When the sleeve 21 is sleeved on the rotating shaft 10, the protruding part of the stopper 11 relative to the rotating shaft 10 is received in the limiting groove 211. When the rotating shaft 10 rotates, the outer sidewall of the stopper 11 abuts against the groove walls of the stopper groove 12 and the limiting groove 211 respectively, so that the rotating shaft 10 drives the sleeve 21 to rotate through the stopper 11. Among them, the limiting groove 211 is configured as an arc-shaped groove to reduce the stress concentration at the position of the limiting groove 211 of the sleeve 21. The protruding part of the stopper 11 relative to the rotating shaft 10 is arc-shaped and cooperates with the limiting groove 211. The stopper groove 12 can be configured as an arc-shaped groove to reduce the stress concentration at the position of the stopper groove 12 of the rotating shaft 10. Exemplarily, the stopper groove 12 and the limiting groove 211 can be respectively configured as circular arc grooves, and the cross-section of the stopper 11 can be configured as a circle. In some embodiments, the stopper groove 12 can also be configured as a square groove, a V-shaped groove, etc.

[0037] In some embodiments, one of the outer sidewall of the rotating shaft 10 and the inner sidewall of the sleeve 21 is provided with a limiting protrusion, and the other is provided with a limiting groove that cooperates with the limiting protrusion. When the sleeve 21 is sleeved on the rotating shaft 10, the limiting protrusion is disposed in the limiting groove. The rotating shaft 10 drives the sleeve 21 to rotate through the cooperation of the limiting protrusion and the limiting groove. Among them, the limiting groove can be configured as an arc-shaped groove, and the limiting protrusion is configured as an arc-shaped protrusion that cooperates with the arc-shaped groove.

[0038] The rotating shaft 10 includes a material pushing shaft section 101 and a grinding shaft section 102 arranged along the axial direction. The grinding paddle 20 includes a material pushing paddle 201 and a stirring paddle 202. The material pushing paddle 201 is disposed on the material pushing shaft section 101. The stirring paddle 202 is disposed on the grinding shaft section 102. The material pushing paddle 201 is used to push the material to move along the axial direction of the rotating shaft 10. The stirring paddle 202 is used to stir the material, agitate the grinding medium in the grinding cylinder, so that the grinding medium grinds the material. Among them, along the axial direction of the rotating shaft 10, the length of the grinding shaft section 102 is greater than the length of the material pushing shaft section 101, so that the grinding medium can fully grind the material.

[0039] Along the radial direction of the rotating shaft 10, the extension length of the blade 22 of the material pushing paddle 201 is greater than the extension length of the blade 22 of the stirring paddle 202, and / or, in a plane perpendicular to the central axis of the rotating shaft 10, the orthographic projection area of the blade 22 of the material pushing paddle 201 is greater than the orthographic projection area of the blade 22 of the stirring paddle 202. In some embodiments, along the radial direction of the rotating shaft 10, the extension length of the blade 22 of the material pushing paddle 201 is greater than the extension length of the blade 22 of the stirring paddle 202, so as to increase the insertion depth of the blade 22 of the material pushing paddle 201 into the material, so that the material pushing paddle 201 can more effectively push the material to move along the axial direction of the rotating shaft 10. In some embodiments, in a plane perpendicular to the central axis of the rotating shaft 10, the orthographic projection area of the blade 22 of the material pushing paddle 201 is greater than the orthographic projection area of the blade 22 of the stirring paddle 202, so that the blade 22 of the material pushing paddle 201 has a stronger pushing effect on the material, so as to more effectively push the material towards the direction of the stirring paddle 202. The pushing effect of the stirring paddle 202 on the material is weaker, which can increase the residence time of the material at the grinding shaft section 102, so that the stirring paddle 202 can stir the material more fully and improve the grinding effect on the material.

[0040] Exemplarily, in this embodiment, along the radial direction of the rotating shaft 10, the extension length of the blade 22 of the material pushing paddle 201 is greater than that of the blade 22 of the stirring paddle 202, and in the plane perpendicular to the central axis of the rotating shaft 10, the orthographic projection area of the blade 22 of the material pushing paddle 201 is greater than that of the blade 22 of the stirring paddle 202. In this way, the blade 22 of the material pushing paddle 201 can push more materials to move, improving the material pushing effect of the material pushing paddle 201. The stirring paddle 202 can make the materials stay at the grinding shaft section 102 for a longer time, enabling the stirring paddle 202 to stir the materials more fully and improving the grinding effect on the materials.

[0041] Along the axial direction of the rotating shaft 10, the length of the sleeve 21 of the material pushing paddle 201 is greater than that of the sleeve 21 of the stirring paddle 202. Along the axial direction of the rotating shaft 10, the length of the blade 22 of the material pushing paddle 201 is greater than that of the stirring paddle 202. When the rotating shaft 10 rotates, the material pushing paddle 201 can push the materials a farther distance, thereby improving the driving force of the material pushing paddle 201 on the materials and more effectively pushing the materials to move from one end of the grinding shaft section 102 close to the material pushing shaft section 101 to the end far from the material pushing shaft section 101.

[0042] The inclination angle of the blade 22 of the material pushing paddle 201 relative to the central axis of the sleeve 21 is smaller than the inclination angle of the blade 22 of the stirring paddle 202 relative to the central axis of the sleeve 21. In this way, the material pushing ability of the material pushing paddle 201 can be improved, the pushing effect of the stirring paddle 202 on the materials along the axial direction of the rotating shaft 10 can be reduced, and the residence time of the materials at the grinding shaft section 102 can be increased, so that the stirring paddle 202 can stir the materials more fully. In some embodiments, the inclination angle of the blade 22 of the material pushing paddle 201 relative to the central axis of the sleeve 21 and the inclination angle of the blade 22 of the stirring paddle 202 relative to the central axis of the sleeve 21 can be set to be the same.

[0043] A plurality of pusher paddles 201 are provided, and the blades 22 of the plurality of pusher paddles 201 are arranged in a spiral pattern. The projections of the blades 22 of two adjacent pusher paddles 201 are offset in a plane perpendicular to the central axis of the rotating shaft 10. The spiral arrangement of the blades 22 of the pusher paddle 201 enables the adjacent blades 22 of the pusher paddle 201 to be adjacent to each other, allowing the material to be immediately pushed by the adjacent next blade 22 of the pusher paddle 201 after being pushed by the blade 22 of the previous pusher paddle 201, improving the continuity of the pusher paddle 201 when pushing the material to move, and thus enhancing the pushing effect of the pusher paddle 201 when pushing the material to move. An included angle is provided between the blades 22 of two adjacent pusher paddles 201. In this embodiment, the blades 22 of two adjacent pusher paddles 201 are arranged in a 90° staggered manner, so that when the pusher paddle 201 pushes the material to move, there is sufficient continuity between the materials, thereby improving the pushing effect of the pusher paddle 201. Specifically, among two adjacent pusher paddles 201, the connection line between two blades 22 on one pusher paddle 201 is arranged at 90° with the connection line between two blades 22 on the other pusher paddle 201. In some embodiments, the blades 22 of two adjacent pusher paddles 201 may also be arranged at other angles, which are not specifically limited in the present utility model, such as 60°, 45°, 30°, etc.

[0044] An included angle is provided between the connection line between two blades 22 on the stirring paddle 202 and the connection line between two blades 22 on the pusher paddle 201, so as to improve the dispersing effect of the stirring paddle 202 on the material when the material moves from the pusher paddle 201 to the stirring paddle 202, increase the degree of chaos of the material at the grinding shaft section 102, and thus enhance the grinding effect on the material.

[0045] The stirring paddles 202 are provided in plurality. The stirring paddles 202 include a first stirring paddle 2021 and a second stirring paddle 2022. The blades 22 of the first stirring paddle 2021 and the blades 22 of the second stirring paddle 2022 are arranged in a dislocation along the axial direction of the rotating shaft 10, and the inclination directions of the blades 22 of the first stirring paddle 2021 and the blades 22 of the second stirring paddle 2022 relative to the central axis of the sleeve 21 are opposite. Wherein, when the rotating shaft 10 rotates, the direction in which the blades 22 of the first stirring paddle 2021 push the material to move is opposite to the direction in which the blades 22 of the second stirring paddle 2022 push the material to move, so that the materials move in an interlaced manner with each other, increasing the degree of chaos of the materials at the position of the grinding shaft section 102, thereby causing more collisions and frictions between the grinding medium and the materials, further improving the grinding effect on the materials, and ensuring the passability of the materials, enabling the materials to pass through the gaps between the blades 22 of the stirring paddle 202, and thus enabling the materials to move along the axial direction of the rotating shaft 10. In this embodiment, the connection line between the two blades 22 of the first stirring paddle 2021 and the connection line between the two blades 22 of the second stirring paddle 2022 are arranged at 90°. In some embodiments, the connection line between the two blades 22 of the first stirring paddle 2021 and the connection line between the two blades 22 of the second stirring paddle 2022 may also be arranged at other angles, which are not specifically limited in the present utility model, such as 60°, 45°, 30°, etc. In some embodiments, among the plurality of stirring paddles 202, the blades 22 of the stirring paddle 202 are arranged in a spiral arrangement. The projections of the blades 22 of two adjacent stirring paddles 202 on the plane perpendicular to the central axis of the rotating shaft 10 are in dislocation.

[0046] The grinding paddle 20 includes a plurality of stirring assemblies 2020. Each stirring assembly 2020 includes at least one first stirring paddle 2021 and at least one second stirring paddle 2022. The first stirring paddle 2021 is arranged relatively closer to the pusher paddle 201 than the second stirring paddle 2022. The inclination direction of the blade 22 of the first stirring paddle 2021 relative to the central axis of the sleeve 21 is the same as the inclination direction of the blade 22 of the pusher paddle 201 relative to the central axis of the sleeve 21, that is, the first stirring paddle 2021 and the pusher paddle 201 push the material to move in the same direction. Wherein, the number of the first stirring paddle 2021 and the second stirring paddle 2022 in the stirring assembly 2020 can be set to be the same. For example, the first stirring paddle 2021 and the second stirring paddle 2022 can be respectively set to one. In some embodiments, the number of the first stirring paddle 2021 and the second stirring paddle 2022 in the stirring assembly 2020 can be set to be different. For example, the number of the first stirring paddle 2021 is more than the number of the second stirring paddle 2022, so that the stirring assembly 2020 provides a driving force in the axial direction of the rotating shaft 10 for the material when stirring the material to rotate, and pushes the material to move along the grinding cylinder.

[0047] The grinding device 1 further includes a spacer sleeve 31. The spacer sleeve 31 is sleeved on the rotating shaft 10 and is located between two adjacent stirring components 2020. The spacer sleeve 31 is used to form a spaced space between two adjacent stirring components 2020. When the rotating shaft 10 rotates, the two adjacent stirring components 2020 push the material towards the spaced space, causing the material and the grinding medium to collide within the spaced space, thereby improving the grinding effect of the material. Among them, a spacer sleeve 31 is provided between the pusher paddle 201 and the stirring paddle 202. The spacer sleeve 31 can be configured as a ceramic spacer sleeve.

[0048] The grinding device 1 further includes a baffle member 32. The baffle member 32 is sleeved on the grinding shaft section 102 of the rotating shaft 10. The baffle member 32 is used to divide the grinding shaft section 102 of the rotating shaft 10 into multiple grinding sub-shaft sections 1021 to partition the grinding medium in the grinding cylinder, so that the grinding medium is distributed in each grinding sub-shaft section 1021, avoiding the concentration of the grinding medium at the end of the grinding cylinder and resulting in a decrease in grinding efficiency. A plurality of stirring components 2020 are provided on each grinding sub-shaft section 1021. The number of stirring components 2020 provided on each grinding sub-shaft section 1021 can be specifically set according to actual needs and is not specifically limited in the present utility model. For example, the number of stirring components 2020 can be set to two, three, four, etc.

[0049] The baffle member 32 is provided with a through hole 321 penetrating along the axial direction of the rotating shaft 10. The through hole 321 can improve the passability of the material and prevent the material from accumulating at the baffle member 32. When the rotating shaft 10 drives the baffle member 32 to rotate, the through hole 321 can also improve the shearing ability of the baffle member 32 for the material, thereby improving the grinding effect on the material. The through hole 321 is provided in plurality, and the plurality of through holes 321 are arranged at intervals around the rotating shaft 10. The baffle member 32 can be configured as a ceramic member. One end of the baffle member 32 away from the rotating shaft 10 is provided with a rounded corner.

[0050] The grinding device 1 further includes a discharging paddle 33 provided on the rotating shaft 10. The discharging paddle 33 is located at the end of the grinding shaft section 102 away from the pusher shaft section 101. The grinding cylinder is provided with a discharging port at a position near the end of the grinding shaft section 102 away from the pusher shaft section 101. Among them, a screen for blocking the outflow of the grinding medium is provided at the discharging port. When the rotating shaft 10 drives the discharging paddle 33 to rotate, the discharging paddle 33 can stir the material and the grinding medium concentrated at the discharging port, preventing the material and the grinding medium from being blocked at the discharging port and enabling the ground material to pass through the screen and be discharged from the discharging port.

[0051] The grinding device 1 further includes a pressing member 34 provided at the end of the grinding shaft section 102 away from the pusher shaft section 101. The pressing member 34 is fixedly connected to the rotating shaft 10 and is used to apply a pressing force along the axial direction of the rotating shaft 10 to the plurality of grinding paddles 20, so as to fix the grinding paddles 20 in the axial direction relative to the rotating shaft 10.

[0052] The above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A grinding device, characterized in that: include: Rotating shaft; A plurality of grinding paddles, wherein the grinding paddles include blades and a sleeve, wherein the sleeve is sleeved on the rotating shaft and fixed relative to the rotating shaft, wherein the blades are arranged on the outer side wall of the sleeve and are integrally formed with the sleeve, and wherein the blades are arranged inclined relative to the central axis of the sleeve.

2. The grinding device according to claim 1, characterized in that The grinding paddle is configured as a ceramic paddle.

3. The grinding device according to claim 1, characterized in that: The connection between the blade and the sleeve is an arc transition.

4. The grinding device according to claim 1, characterized in that The circumferential side of the blade is configured as an arc structure.

5. The grinding device according to claim 1, characterized in that: The end surfaces of two adjacent sleeves are tightly connected.

6. The grinding device according to claim 1, characterized in that The grinding equipment also includes a stopper, a stop groove is provided on the outer wall of the rotating shaft, a limiting groove is provided on the inner wall of the sleeve, and the stopper is arranged in the stop groove and the limiting groove, or, one of the outer wall of the rotating shaft and the inner wall of the sleeve is provided with a limiting protrusion, and the other is provided with a limiting groove, and the limiting protrusion is arranged in the limiting groove.

7. The grinding device according to claim 6, characterized in that The limiting groove is configured as an arc-shaped groove.

8. The grinding device according to claim 1, characterized in that The rotating shaft comprises a pushing shaft section and a grinding shaft section arranged along the axial direction, and the grinding paddle comprises a pushing paddle and a stirring paddle. The pushing paddle is arranged on the pushing shaft section, and the stirring paddle is arranged on the grinding shaft section.

9. The grinding device according to claim 8, characterized in that Along the radial direction of the rotating shaft, the extension length of the blade of the push paddle is greater than the extension length of the blade of the stirring paddle, and / or, on a plane perpendicular to the central axis of the rotating shaft, the orthographic projection area of ​​the blade of the push paddle is greater than the orthographic projection area of ​​the blade of the stirring paddle.

10. The grinding device according to claim 1, characterized in that The blades of the plurality of grinding paddles are arranged in a spiral shape.

11. The grinding device according to claim 8, characterized in that The blades of two adjacent push paddles are staggered at 90 degrees.

12. The grinding device according to claim 8, characterized in that The stirring paddle comprises a first stirring paddle and a second stirring paddle, wherein the blades of the first stirring paddle and the blades of the second stirring paddle are staggered along the axial direction of the rotating shaft, and are inclined in opposite directions relative to the central axis of the sleeve.

13. The grinding device according to claim 1, characterized in that The grinding paddle comprises a plurality of stirring components, wherein the stirring components comprise a first stirring paddle and a second stirring paddle. The grinding device further comprises a spacer sleeve, wherein the spacer sleeve is arranged between two adjacent stirring components.

14. The grinding device according to claim 13, characterized in that The grinding device also includes a barrier member, which is sleeved on the rotating shaft and is used to separate the rotating shaft into a plurality of grinding sub-shaft segments, each of which is provided with a plurality of the stirring assemblies.

15. The grinding device according to claim 8, characterized in that The grinding device also includes a discharge paddle arranged on the rotating shaft, and the discharge paddle is located at the end of the grinding shaft section away from the pushing shaft section.

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