A comminution mill

Abstract

The application discloses a crushing and grinding device, which comprises a frame, a crushing and grinding assembly and a driving unit, wherein the crushing and grinding assembly comprises a crushing unit and a grinding unit; the crushing unit comprises a plurality of crushing rollers arranged in a circle; the driving unit can drive the crushing rollers to rotate around the central shaft and form a ring-shaped grinding surface; the grinding unit comprises a mesh plate which is rotatably sleeved on the crushing rollers and forms a feeding port above the crushing rollers; a grinding cavity is formed between the grinding surface and the mesh plate; and the thickness of the grinding cavity gradually decreases from the first side to the second side and then gradually increases. The grinding material can be put into through the feeding port. The application has reasonable structure, low production cost and good grinding effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of broken grinding equipment, in particular to a broken grinding device. BACKGROUND

[0002] The grinding equipment is widely used in production practice, and in the fine grinding demand, the particle size and uniformity of the ground particles are required to be high. For example, in the preparation of animal bone extract, the animal bones are first dried to have a loose and porous honeycomb internal structure. At this time, the bone texture is brittle, which facilitates subsequent broken grinding. The grinding uniformity and particle size of the bone directly affect the extraction rate of the effective components. The existing fine grinding equipment often has the problems of complex structure, high production cost, uneven grinding and low efficiency. SUMMARY

[0003] The present application discloses a broken grinding device, which solves the technical problems of complex structure, high production cost, uneven grinding and low efficiency of the existing fine grinding equipment, and has the technical effects of reasonable structure, low production cost and good grinding effect. The technical scheme adopted is as follows:

[0004] A broken grinding device, comprising a rack, a broken grinding assembly and a driving unit are arranged on the rack, the broken grinding assembly comprises a broken unit and a grinding unit, the broken unit comprises a plurality of broken rollers arranged in a circle, the driving unit can drive the plurality of broken rollers to rotate around the central shaft and form a ring-shaped grinding surface, the grinding unit comprises a screen plate, the screen plate is rotatably sleeved on the outside of the broken roller and forms a feeding port above, the grinding surface and the screen plate form a grinding cavity, and the grinding cavity gradually decreases in thickness from the first side to the second side and then gradually increases, and the material to be ground can be fed through the feeding port.

[0005] On the basis of the above technical scheme, a plurality of discharge holes are arranged on the screen plate, and two first baffles are fixedly connected to the two ends of the screen plate in the axial direction, the two first baffles can close the grinding cavity, and the ground powder can be discharged through the discharge holes.

[0006] On the basis of the above technical scheme, the two first baffles are connected through a plurality of supporting rods, and the plurality of supporting rods are arranged outside the screen plate and spaced apart along the extension direction of the screen plate to support the screen plate.

[0007] On the basis of the above technical scheme, the first baffle comprises a first outer plate and a second inner plate arranged axially in parallel, and the first outer plate and the first inner plate are embedded and arranged to form a groove for clamping the screen plate.

[0008] On the basis of the above technical scheme, two second baffles are further included, the two second baffles are arranged at two ends of the crushing roller and are respectively fixedly connected with the crushing roller, the driving unit comprises a shaft rod, the shaft rod penetrates through the two second baffles and is fixedly connected with the second baffles, so as to transmit the rotary motion to the crushing unit.

[0009] On the basis of the above technical scheme, the crushing roller is coated with a metal wear-resistant coating.

[0010] On the basis of the above technical scheme, the part of the shaft rod that extends out of the two second baffles is respectively sleeved with a bearing, the first baffle is provided with an elongated hole for accommodating the bearing, the elongated hole vertically extends, and the bearing is connected with the first baffle in an adjustable up-down position.

[0011] On the basis of the above technical scheme, an adjusting assembly is further included, the adjusting assembly comprises a first adjusting screw and a second adjusting screw, the first adjusting screw and the second adjusting screw are arranged in a vertical coaxial line, the first adjusting screw extends upward into a first counterbore arranged on an inner wall surface of the elongated hole, the first adjusting screw is screwed downward with an outer ring of the bearing, the second adjusting screw extends downward into a second counterbore arranged on the inner wall surface of the elongated hole, and the second adjusting screw is screwed upward with the outer ring of the bearing.

[0012] On the basis of the above technical scheme, the crushing and grinding assembly has at least two groups and is arranged side by side, and further comprises a cover plate, the cover plate can be used for capping the feeding port.

[0013] On the basis of the above technical scheme, the rack is further provided with a material receiving plate, the material receiving plate is arranged obliquely, and the finished product particle powder that falls through the discharging hole can fall onto the material receiving plate and be discharged.

[0014] Advantageous effects

[0015] The present application has reasonable structure, the crushing and grinding assembly comprises a crushing unit and a grinding unit, wherein the crushing unit comprises a plurality of crushing rollers arranged in a circumference, when the driving unit drives the crushing rollers to rotate, the crushing rollers repeatedly collide and extrude the material to be ground to break it into large particles and fall downward; in addition, the mesh plate is rotatably connected with the grinding unit, the mesh plate and the grinding surface form a grinding cavity therebetween, the grinding cavity gradually decreases in thickness from the first side to the second side and then gradually increases, when the driving unit drives the crushing unit to rotate, the large particle material is clamped in the grinding cavity and bears the rubbing force in opposite directions from the crushing rollers and the mesh plate, so that it is broken into smaller particles; in addition, when the mesh plate moves to the highest point on one side under the drive of the grinding unit, the resistance received by the mesh plate is smaller due to the gradually increasing space of the grinding cavity, and finally swings to the other side under the action of the weight and inertial force, so as to repeatedly grind the particles in the grinding cavity, which is beneficial to improve the grinding efficiency.

[0016] The net plate is provided with a plurality of blanking holes in the present application, wherein the size of the blanking hole is consistent with the particle size of the particles to be ground, so that the particles reaching the set particle size can be discharged in time, avoiding being repeatedly ground to deviate from the set particle size, which is beneficial to improve the grinding uniformity. In addition, the net plate is inserted into the two grooves, which is convenient and timely to replace the treatment, which is beneficial to save the operation cost. In addition, a plurality of supporting rods are further provided outside the net plate for supporting the net plate, reducing the deformation degree of the net plate due to extrusion.

[0017] In the present application, the grinding unit is adjustable in up-down position relative to the net plate, so that the size of the grinding cavity can be adjusted to meet different grinding requirements. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only one embodiment of the present application, and for those skilled in the art, other drawings can be obtained on the basis of the provided drawings without creative labor.

[0019] Figure 1 : Structure schematic diagram of front view of the present application;

[0020] Figure 2 : Structure schematic diagram of the broken grinding assembly after removing the net plate in the present application;

[0021] Figure 3 : Figure 2 Structure schematic diagram of front view;

[0022] Figure 4 : Figure 2 Structure schematic diagram of front view;

[0023] Figure 5 : Structure schematic diagram of the broken grinding assembly after removing the net plate in the present application;

[0024] Figure 6 : Structure schematic diagram of the net plate in the present application;

[0025] Figure 7 : Action exploded view of the grinding unit when the broken unit rotates one circle; DETAILED DESCRIPTION

[0026] The following description and drawings are illustrative of specific embodiments thereof and are not intended to limit the scope of the embodiments. Parts and features of some embodiments can be included or substituted in other embodiments. The scope of the embodiments described herein is encompassed by the entire scope of the claims, and all available equivalents of the claims. Herein, the terms "first", "second", and the like, are used to distinguish one element from another, and do not require or imply any actual relationship or order between such elements. In fact, the first element could be named the second element and, conversely, the second element could be named the first element. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a structure, device, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such structure, device, or apparatus. Without further limitation, an element defined by an "includes a" statement does not exclude the presence of additional identical elements in the structure, device, or apparatus that includes the element. Various embodiments are described in a progressive manner, each focusing on the differences from other embodiments, and the same or similar parts between embodiments are referred to each other.

[0027] The terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate the orientation or positional relationship shown in the drawings, and are used herein and in the description only to facilitate the description and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description herein, unless otherwise specified and limited, the terms "mount", "connect", "connection" should be interpreted broadly, for example, it can be a mechanical connection or an electrical connection, it can be a communication between two elements inside, it can be a direct connection, or an indirect connection through an intermediate medium, and the specific meaning of the above terms can be understood by those skilled in the art according to the specific circumstances.

[0028] Herein, unless otherwise specified, the term "a plurality of" means two or more.

[0029] Herein, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means: A or B.

[0030] Herein, the term "and / or" is a description of the relationship between the objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0031] As Figures 1-7The shown one kind of broken grinding device, including frame 100, in this embodiment, frame 100 is frame structure, frame 100 is equipped with broken grinding assembly and drive unit, drive unit includes motor 31, transmission gear set and two shaft rods 32, in this embodiment, motor 31 adopts speed regulating motor, the rotor end of motor 31 is coaxially fixed with driving wheel in transmission gear set, can be transmitted to driving wheel with rotary motion, driving wheel is engaged with driven wheel, two shaft rods 32 are respectively coaxially fixed with driving wheel and driven wheel.

[0032] Broken grinding assembly in this embodiment has two groups and is arranged in parallel, and the broken grinding assembly includes a broken unit 1 and a grinding unit 2, as shown, Figure 5 The broken unit 1 includes two second baffles 12 and three broken rollers 11 arranged uniformly in the circumference, the two second baffles 12 are respectively arranged at the two ends of the broken rollers 11 and are fixedly connected with the three broken rollers 11, in addition, the broken rollers 11 can be coated with a wear-resistant metal coating outside to improve the service life. The wear-resistant metal coating is a prior art, and a person skilled in the art can select according to the needs.

[0033] Each shaft rod 32 penetrates through the two second baffles 12 and is fixedly connected with the second baffles 12, so that the drive unit can drive the three broken rollers 11 to rotate around the central shaft, and form a ring-shaped grinding surface, in addition, the part of the shaft rod 32 extending out of the two second baffles 12 is respectively sleeved with a bearing 7.

[0034] The grinding unit 2 includes a mesh plate 21, the mesh plate 21 is provided with a plurality of material falling holes (not shown), the diameter of the material falling hole is consistent with the particle size of the particles to be ground, as shown, Figure 6 The mesh plate 21 is substantially U-shaped and symmetrically arranged, and the two free ends of the U-shaped mesh plate 21 extend outward;

[0035] The two first baffles 22 are respectively fixedly connected at the two ends of the mesh plate 21 in the axial direction. Among them, the first baffle 22 includes a first outer plate 221 and a first inner plate 222 arranged in the axial direction, the first outer plate 221 and the first inner plate 222 are embeddedly arranged and form a groove for clamping the mesh plate 21 therebetween, and the two ends of the mesh plate 21 can be inserted into the groove. In addition, the two first baffles 22 are connected through a plurality of support rods 23, and the plurality of support rods 23 are uniformly arranged along the outer wall surface of the mesh plate 21 to support the mesh plate 21, as shown. Figure 4

[0036] The mesh plate 21 is rotatably sleeved outside the broken roller 11 and forms a feeding port above, the material to be ground can be poured into through the feeding port, and the frame 100 is also hingedly connected with a cover plate (not shown), which can be used to cover the feeding port.

[0037] As shown, Figure 2 And 4 ​As shown, the first baffle 22 is provided with a long hole 24 extending vertically through the first outer plate 221 and the first inner plate 222, and the bearing outside the shaft 32 is embedded in the long hole 24 to be connected with the first baffle 22, and the bearing is adjustably connected with the first baffle 22 in the up-down position. Specifically, the adjusting assembly further includes a first adjusting screw 4 and a second adjusting screw 5, which are vertically coaxial, the first adjusting screw 4 extends upward into a first counterbore provided on the inner wall surface of the long hole 24, and the first adjusting screw 4 is screwed downward with the outer ring of the bearing 7, the second adjusting screw 5 extends downward into a second counterbore provided on the inner wall surface of the long hole 24, and the second adjusting screw 5 is screwed upward with the outer ring of the bearing 7, so that the first adjusting screw 4 and the second adjusting screw 5 are synchronously rotated to drive the bearing 7 and the crushing unit 1 to move up and down relative to the mesh plate 21.

[0038] As shown, the grinding surface and the mesh plate 212 form a grinding cavity 6, and the grinding cavity 6 gradually decreases in thickness from the first side to the opposite second side, and then gradually increases in thickness, that is, the thickness of the grinding cavity 6 gradually decreases and then gradually increases from the first side to the opposite second side, wherein the thinnest part of the grinding cavity 6 is consistent with the size of the particles to be ground, and the size of the thinnest part of the grinding cavity 6 can also be adjusted by the adjusting assembly, which has a wide range of applications. In addition, the two first baffles 22 close the grinding cavity 6 at both ends in the axial direction, so that the ground powder falls through the discharge hole.

[0039] Working process

[0040] In this embodiment, the shaft 3 is taken as an example of counterclockwise rotation

[0041] As shown, Figure 7 First, the shaft 32 drives the crushing unit 1 to rotate counterclockwise, and the worker opens the cover plate to put the bone into it; the bone is broken into large particles under the high-speed impact of the crushing roller and falls onto the mesh plate 21;

[0042] Then, the large particles fall into the grinding cavity 6 formed between the grinding surface and the mesh plate 21, and part of the large particles are clamped between the mesh plate 21 and the crushing roller 11, so that when the crushing roller 11 rotates counterclockwise, the mesh plate 21 is driven to rotate counterclockwise due to the clamping effect, and then, on the one hand, the large particles are further broken into small particles under the rubbing force of the crushing roller 11 and the mesh plate 21 in opposite directions, and the frictional force received by the mesh plate 21 is reduced, and on the other hand, the grinding cavity 6 between the mesh plate 21 and the annular surface formed by the plurality of crushing rollers 11 gradually increases, further releasing the mesh plate 21, when the mesh plate 21 moves to the highest point on the right side under the drive of the crushing unit 1, the smaller the resistance received by the mesh plate 21, and finally under the action of gravity and inertia force, the mesh plate 21 swings to the other side, so that the particles in the grinding cavity 6 are repeatedly ground back and forth, which is beneficial to improve the grinding efficiency.

[0043] When the size of the particles to be ground needs to be adjusted, the worker can rotate the first adjusting screw 4 and the second adjusting screw 5 simultaneously to adjust the distance between the annular surface formed by the crushing rollers 11 and the screen plate 21.

[0044] The application has been described above by way of example, but is not limited to the specific embodiments described above, any modification or variation made on the basis of the application falling within the scope of the application as claimed.

Claims

1. A comminution mill characterized by, The application relates to a crushing and grinding assembly, which comprises a rack (100) provided with a crushing and grinding assembly and a driving unit, the crushing and grinding assembly comprises a crushing unit (1) and a grinding unit (2), the crushing unit (1) comprises a plurality of crushing rollers (11) arranged in a circle, the driving unit can drive the plurality of crushing rollers (11) to rotate around the central shaft and form a ring-shaped grinding surface, the grinding unit (2) comprises a mesh plate (21), the mesh plate (21) is rotatably sleeved outside and above the crushing roller (11) to form a feeding port, a grinding cavity (6) is formed between the grinding surface and the mesh plate (21), and the thickness of the grinding cavity (6) gradually decreases from the first side to the second side, and then gradually increases; and the material to be ground can be fed into the grinding cavity (6) through the feeding port. The mesh plate (21) is provided with a plurality of discharging holes, and two first baffles (22) are fixedly connected to the two ends of the mesh plate (21) in the axial direction, the two first baffles (22) can close the grinding cavity (6), and the powder after grinding can be discharged through the discharging holes. The two first baffles (22) are connected through a plurality of supporting rods (23), the supporting rods (23) are arranged outside the mesh plate (21) and are arranged in the extending direction of the mesh plate (21) at intervals, and the mesh plate (21) is supported. The first baffle (22) comprises a first outer plate (221) and a first inner plate (222) arranged in parallel in the axial direction, the first outer plate (221) and the first inner plate (222) are embedded and arranged to form a groove for clamping the mesh plate (21). The application further comprises two second baffles (12), the two second baffles (12) are separately arranged at the two ends of the crushing roller (11) and are fixedly connected with the plurality of crushing rollers (11), and the driving unit comprises a shaft (32), the shaft (32) penetrates through the two second baffles (12) and is fixedly connected with the second baffles (12) to transmit the rotary motion to the crushing unit (1).

2. The crushing mill device of claim 1, wherein, The crushing roller (11) is coated with a metal wear-resistant coating.

3. The crushing mill device of claim 1, wherein, The part of the shaft (32) extending out of the two second baffles (12) is sleeved with a bearing (7), the first baffle (22) is provided with a long hole (24) for accommodating the bearing, the long hole (24) extends vertically, and the bearing (7) is connected with the first baffle (22) in an adjustable up-down position.

4. The crushing mill device of claim 3, wherein, The application further comprises an adjusting assembly, the adjusting assembly comprises a first adjusting screw (4) and a second adjusting screw (5), the first adjusting screw (4) and the second adjusting screw (5) are arranged in parallel in the vertical direction, the first adjusting screw (4) extends into a first counterbore in the inner wall surface of the long hole (24) upwards, the first adjusting screw (4) is screwed with the outer ring of the bearing (7) downwards, the second adjusting screw (5) extends into a second counterbore in the inner wall surface of the long hole (24) downwards, and the second adjusting screw (5) is screwed with the outer ring of the bearing (7) upwards.

5. A crushing grinding device according to any one of claims 2 to 4, characterized in that The crushing and grinding assembly has at least two groups and is arranged in parallel, and further comprises a cover plate which can be used for covering the feeding port.

6. The crushing mill device of claim 5, wherein, The rack (100) is further provided with a receiving plate (8), which is arranged obliquely. The finished granular powder falling through the falling hole can fall onto the receiving plate (8) and be discharged.

Images