CN115646588A - Self-cleaning crushing device - Google Patents

Abstract

The invention discloses a self-cleaning crushing device, which belongs to the technical field of material crushing. It includes at least one crushing unit, the crushing unit is composed of intermeshed bar wheels, and the bar wheels include at least two coaxially arranged wheel discs, and at least one set of elongated striking teeth is uniformly interspersed between the wheel discs, Each set of elongated batting teeth is arranged in parallel along the circumferential direction of equal radius of the axis of the roulette; a relief portion is provided on the outer periphery of the roulette to prevent the movement track of the roulette or the elongated batting teeth from interfering when meshing. The self-cleaning crushing device of the present invention has the advantages of simple structure, reliable operation, low cost, strong self-cleaning effect, and can effectively prevent contamination between materials during continuous processing.

Description

A self-cleaning crushing device

technical field

The invention relates to the field of material crushing and processing, in particular to a self-cleaning crushing device.

Background technique

The crushing device is an important branch of modern crushing equipment, and crushing work is an indispensable link in the modern material processing process. The crushing device generally changes the distance between the two working faces, so that the materials in between are squeezed and crushed. However, when many materials are squeezed, as the temperature and water content change, the crushed powder will stick to the working surface. Due to continuous extrusion, the density of the sticky matter will increase, and the strength and hardness will also increase. When the strength of the material is insufficient, it cannot be destroyed, and it can only be peeled off after it becomes larger, or it will be peeled off when the equipment is affected. Although there are scrapers and brushes in the prior art to clean the working surface, only on limited occasions. Some industries involve the alternate crushing of different materials in the same equipment, which will easily mix different batches of materials and affect the quality. In some fields such as medicine, fine chemicals, and food, this is absolutely not allowed, so How to solve the self-cleaning of crushing equipment has become an urgent problem to be solved.

Contents of the invention

Aiming at the problems in the related art, the present invention proposes a self-cleaning crushing device, which is used to solve the problems in the prior art that modern materials are fragmented, and different batches of production materials are easily mixed.

A self-cleaning crushing device, comprising at least one crushing unit, the crushing unit is composed of intermeshed bar wheels, and the bar wheels include at least two coaxially arranged wheel discs, and uniformly interspersed between the wheel discs At least one set of long batting teeth, each set of long batting teeth is arranged parallel to the circumference of the same radius of the roulette axis; the periphery of the bar wheel is provided with a relief part to prevent the roulette or the long batting teeth from The motion profile interferes during meshing.

Further, the surface of the bar wheel and/or the elongated batting tooth is smooth.

Furthermore, there are multiple groups of the elongated blades, and the multiple groups of elongated blades are coaxially arranged.

Further, the distance between the piercing point of the elongated tooth on its own bar and the center of the engaged bar is smaller than the distance from the piercing point of the elongated tooth on the engaged bar to the center of its own bar. distance.

Further, the crushing unit is composed of a plurality of intermeshing pulleys, and the axes of the plurality of intermeshing pulleys are located on the same axis line; when the axis lines are in a straight line, they are arranged in a straight line , forming a plane crushing space; when the middle part of the axis is close to the feeding port, it forms a concave arrangement, forming a concave crushing space; when the middle part of the axis is far away from the feeding port, it forms a convex arrangement, forming a convex crushing space .

Furthermore, the crushing unit is provided in multiple groups.

Further, a feeding device is also provided, and the feeding device makes the material fall to the meshing position of the pulley.

Beneficial effects of the present invention: the patented structure is simple, easy to clean, easy to manufacture, low production cost, airtight system, and good self-cleaning performance. For materials produced in batches, the disadvantage of mixing due to the crushing process is avoided; at the same time, secondary pollution caused by leakage of lubricating substances is also avoided. The composition of the strip wheel assembly in the crushing unit in the crushing device can be arranged in a plane, concave, convex, single-layer or double-layer arrangement according to the needs. Due to the small crushing surface and short contact time, it also prevents heat generated by friction. Problems leading to material denaturation.

Description of drawings

Fig. 1 is a front view of the crushing unit in Embodiment 1.

FIG. 2 is a top view of the crushing unit in Embodiment 1.

Fig. 3 is a schematic diagram of the structure of the bar pulley in the present invention.

Fig. 4 is a multi-group elongated batting tooth according to Embodiment 1 of the present invention.

Fig. 5 is a crushing unit arranged in a single layer in a straight line.

Fig. 6 is a crushing unit arranged in a double-layer line.

Fig. 7 is a crushing unit in a concave arrangement.

Fig. 8 is a crushing unit arranged in a convex shape.

Figure 9 is a schematic diagram of the roulette.

In the figure: 1, bar wheel; 11, roulette; 12, strip striking tooth; 13, give way part; 2, bracket.

Detailed ways

It is obvious that the accompanying drawings in the above description are only some implementation examples of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings without any creative work, and it is not intended to use In order to limit the limited conditions for the implementation of the present invention, any structural modification, change in proportional relationship or size adjustment shall fall within the technical content disclosed in the present invention without affecting the functions produced by this patent and the goals that can be achieved. within the range that can be covered.

Example 1

As shown in Figures 1 to 3, a self-cleaning crushing device includes a crushing unit. In this embodiment, the crushing unit is composed of four horizontally arranged strip wheels 1 that mesh with each other. The strip wheels 1 are rotatably erected on the bracket 2 on. The bar wheel 1 includes at least two coaxially arranged wheel discs 11, and a set of (8) long batting teeth 12 is uniformly pierced between the said wheel discs 11, and each group of said strip batting teeth 12 is arranged along the The axes of the wheels 11 are arranged parallel to the circumference of the same radius; the periphery of the wheels 11 is provided with a relief part 13 to prevent the movement track of the wheels 11 or the elongated hammer 12 from interfering when meshing.

It should be noted that, in FIG. 3 , for the convenience of understanding, only the left roulette 11 is reserved, while the right roulette is omitted, but it is not difficult to imagine that the right roulette is arranged symmetrically with the left side.

In this embodiment, the abdication portion 13 is set with reference to the principle of gear meshing. When the two intermeshing roulettes 11 are in operation, the protrusion of one roulette 11 makes way for the other roulette 11. Fitting and sliding in the part 13, but the motion trajectories of the two do not interfere.

In some embodiments, as shown in FIG. 9 , when the two reels 11 are meshed, and the elongated tooth 12 on one of the reels 11 is rotated to the engaged position, from the side projection, it is on its own reel. The distance from the piercing point to the center of the meshed bar is less than the distance R from the threading point of the elongated tooth 12 on the meshed bar to the center of the own wheel 11, but greater than the relief part 13 on the own wheel 11 The distance r from the bottom to the center of the roulette 11.

When the two roulettes 11 can mesh and rotate, a pair of elongated batting teeth 12 matched on different roulettes 11 will produce a process of approaching, intersecting, and moving away. In this process, the two elongated batting teeth The distance between 12 will change, and the materials within this range will be squeezed and broken. It should be pointed out here that the said cross only refers to the elongated tooth 12 on one wheel disc 11, which is closer to the latter than a certain elongated tooth 12 on the other coordinating wheel disc 11. The center of the circle forms an intersection on the circumference of the side projection, not an intersection in other senses.

Further, in some embodiments, the diameter of the elongated tooth 12 can be adjusted. When the diameter is large enough, there will be a situation where the surfaces of the corresponding two elongated teeth collide directly, which will cause grinding. The effect of pressing the material, thereby improving its crushing effect. The adjustment of the diameter of the long batting tooth 12 can be calculated so that it just collides, and the equipment will not be damaged due to excessive conflicting force. Regarding the control of the magnitude of the conflicting force, another method is to set the elastic floating of the bar wheel On the bracket 2, a simple method is to set a track or groove on the bracket 2 that matches the shaft of the pulley, and then use an elastic device with a suitable force to press the pulleys 1 that need to cooperate with two or more groups together. , That is to say, the track or groove is used to limit the trajectory of the pulley, and the spring is used to limit the force of friction between the pulleys.

In order to improve the crushing efficiency, two or more sets of long batting teeth 12 can also be set on one pulley 1. One set is arranged at the high point of the relief 13 and the other set is arranged at the low point of the relief 13 . Of course, when this arrangement is adopted, the elongated tooth 12 at the high point of the abdication portion 13 of one wheel 1 can only be close to the elongated tooth 12 at the high point of the abdication portion 13 of the other wheel 1 without crossing. , but this still provides sufficient crushing force.

Since the contact area between the long batting tooth 12 and the material is very small, and it will be rubbed by other long batting teeth 12 and the material during the rotation, causing the material adhered on its surface to be peeled off. In some embodiments, the strip The striking tooth 12 is very smooth through processes such as electroplating and polishing, which will further prevent the materials from adhering and sticking, thus achieving the effect of self-cleaning. In order to ensure that the materials are not mixed, if necessary, they can After the first material, you can add an intermediate material (such as starch) that will not cause performance pollution to the second material for crushing. After confirming that the content of the first material is lower than the standard, add the second material. Because the self-cleaning effect of the present invention is good , there will be no adhesion, so a very high purity rate can be obtained.

In order to enhance the crushing effect, in some embodiments, the elongated striking teeth 12 may be arranged in multiple groups, and the multiple groups of elongated striking teeth 12 are coaxially arranged, as shown in FIG. 4 . A popular description is that two sets of strip teeth 12 are divided into inner and outer circles with different radii from the center of the roulette 11. During the meshing and rotation of the two roulettes 11, the long shanks of the outer ring on one roulette 11 The tooth 12 will penetrate into the cylindrical trajectory formed by the movement of the long tooth 12 of the outer ring of the other roulette, and be close to the long tooth 12 of the inner ring, but it must not be in contact with any long tooth in the process. 12 interference occurred. It is equivalent to increasing the probability of material colliding with the long tooth 12 by increasing the density of the long tooth 12. On the basis of knowing the above principles, those skilled in the art have the ability to design the specific number of long tooth 12 according to the needs And the distance between the inner and outer rings, so the specific parameters will not be repeated.

Example 2

In this embodiment, the crushing unit is arranged in a cavity, and the upper end of the cavity is provided with a feed inlet. When the crushing unit is composed of two intermeshing pulleys 1, the feed inlet can be set to guide the material The meshing position of the two pulleys 1.

When the crushing unit is composed of a plurality of intermeshed pulleys 1, the feed inlet can be set perpendicular to the axial direction of the pulleys 1, so that each set of pulleys 1 can receive materials evenly.

The axes of the plurality of intermeshed pulleys 1 are located on the same axis;

When the axes are in a straight line, they are arranged in a straight line to form a plane crushing space, as shown in Figure 5;

Of course, it is also possible to form a concave arrangement when the middle part of the axis line is close to the feed inlet to form a concave crushing space, as shown in Figure 7;

Alternatively, when the middle part of the axis line is away from the feed inlet, a convex arrangement is formed to form a convex crushing space, as shown in FIG. 8 .

In order to improve the crushing quality, multiple groups of crushing units can also be set in the cavity, for example, the upper and lower layers can be arranged, and the crushing units on the lower layer can undertake the crushing of the materials crushed by the upper unit, as shown in Figure 6.

The above are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention in any way, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to within the scope of the technical solutions of the present invention.

Claims (6)

1. A self-cleaning crushing device, comprising at least one crushing unit, characterized in that, the crushing unit is composed of intermeshed bar wheels, and the bar wheels include at least two coaxially arranged wheel discs, and the wheel There are at least one set of long batting teeth evenly threaded between the discs, and each set of long batting teeth is arranged parallel to the circumferential direction of the same radius as the axis of the wheel; The movement trajectory of the disc or strip tooth interferes when it engages. 2. A self-cleaning crushing device according to claim 1, characterized in that the surface of the bar wheel and/or the elongated batting tooth is smooth. 3. A self-cleaning crushing device according to claim 1 or 2, wherein there are multiple groups of said elongated hammer teeth, and the multiple groups of elongated hammer teeth are coaxially arranged. 4. A self-cleaning crushing device according to claim 1, characterized in that, for the elongated batter teeth in the meshing position, the distance from the piercing point on its own slat to the center of the meshed slat is less than the set Describe the distance from the piercing point of the long bar on the meshed bar to the center of the bar itself. 5. A self-cleaning crushing device according to claim 1, characterized in that, the crushing unit is composed of a plurality of intermeshing bar wheels, and the axes of the plurality of intermeshing bar wheels are located on the same axis center line; when the axis line is a straight line, it is arranged in a straight line to form a plane crushing space; when the middle part of the axis line is close to the feed port, it forms a concave arrangement and forms a concave crushing space; when the axis When the middle part of the core line is away from the feed inlet, it forms a convex arrangement, forming a convex crushing space. 6. A self-cleaning crushing device according to claim 1 or 5, characterized in that there are multiple groups of crushing units.

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