Toothed plate of hammer crusher

Abstract

The utility model discloses a toothed plate of a hammer crusher, which belongs to the field of hammer crusher equipment, is arranged on the periphery of a swinging hammer, and comprises a flexible bottom plate and toothed blocks distributed on the flexible bottom plate at equal intervals, each toothed block has the same structure, a groove is formed between every two adjacent toothed blocks, the swinging hammer rotating at a high speed forms a cyclone vortex field in the grooves, and the cyclone vortex field is arranged on the periphery of the swinging hammer. And the rotation direction of the cyclone vortex field is opposite to the vortex direction formed by the movement of the rotor. The throwing hammer rotating at a high speed is used for violently impacting titanium dioxide particles in production and promoting the titanium dioxide particles to violently impact a toothed plate or other rotating bodies, so that carbon black particles are finely crushed with strong energy.

Description

Technical Field

[0001] The utility model belongs to the field of hammer crusher equipment and relates to a tooth plate of a hammer crusher. Background Art

[0002] Hammer crusher is a kind of equipment that crushes materials in the form of impact. It can directly crush materials with a maximum particle size of 600-1800 mm to 25 or less mm.

[0003] The tooth plate and hammer head on the hammer crusher work together to squeeze, impact and shear the materials entering the crusher through the high-speed rotating hammer head to achieve material crushing, thereby crushing large pieces of material into the required particle size. The tooth plate gap currently used is 2.4*2.8mm. The kinetic energy obtained by the material cannot impact the tooth plate and falls back into the main machine, resulting in low fineness and small penetration of the crushed material.

[0004] Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. Utility Model Content

[0005] The utility model aims to provide a tooth plate of a hammer crusher, which can increase the service life of the tooth plate and improve material performance by adjusting the tooth plate.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] A tooth plate of a hammer crusher is arranged on the periphery of a swing hammer, comprising a flexible bottom plate and tooth blocks equidistantly distributed on the flexible bottom plate, each tooth block having the same structure, a groove formed between two adjacent tooth blocks, and the swing hammer rotating at high speed forms a cyclone eddy flow field in the groove, the rotation direction of the cyclone eddy flow field being opposite to the eddy flow direction formed by the movement of the rotor.

[0008] As a further improvement of an embodiment of the utility model, the tooth plates are bent into a circle and distributed around the periphery of the swing hammer.

[0009] As a further improvement of an embodiment of the utility model, the tooth block is narrow at the top and wide at the bottom, the two sides of the tooth block are respectively abutting surface and an inclined surface, and the upper end of the tooth block is a transition slope toward the inclined surface.

[0010] As a further improvement of an embodiment of the utility model, the inclination of the transition slope is smaller than the inclination of the inclined surface.

[0011] As a further improvement of an embodiment of the utility model, wherein the abutting surface is a vertical plane, and the upper end point of the abutting surface is the highest point of the tooth block.

[0012] As a further improvement of an embodiment of the utility model, the swing hammer rotates clockwise, a hammer edge is provided at the front end of the swing hammer, and a shear force acting on the particles is formed between the hammer edge and the groove.

[0013] As a further improvement of an embodiment of the utility model, the distance between two adjacent tooth blocks is 2.0 mm, and the height of the tooth block is 1.8 mm.

[0014] The above technical solution has the following beneficial effects: the high-speed rotating hammer is used to violently impact the titanium dioxide particles in production and cause them to violently impact with the tooth plate or other rotating body, thereby finely crushing the titanium dioxide particles with powerful energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0017] Figure 1 The utility model provides a schematic diagram of the relationship between the tooth plate and the swing hammer.

[0018] Figure 2 This is a schematic diagram of the tooth plate provided by the utility model.

[0019] Figure 3 for Figure 1 A magnified schematic diagram of area A in the middle.

[0020] In the figure: 1-tooth plate; 11-flexible bottom plate; 12-tooth block; 121-inclined surface; 122-transition slope; 123-abutting surface; 13-groove; 2-swing hammer; 21-hammer edge; 3-rotor. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0023] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention. Example

[0024] See also Figure 1-Figure 3 As shown, a tooth plate of a hammer crusher is arranged on the periphery of a swing hammer 2, including a flexible bottom plate 11 and tooth blocks 12 equidistantly distributed on the flexible bottom plate 11, wherein each tooth block 12 has the same structure, and is narrow at the top and wide at the bottom. The two sides of each tooth block 12 are respectively abutting surfaces 123 and inclined surfaces 121, and the upper end of the tooth block 12 is a transition slope 122 facing the inclined surface 121. A groove 13 is formed between two adjacent tooth blocks, and the swing hammer 2 rotating at a high speed forms a cyclone vortex field in the groove 13, and the rotation direction of the cyclone vortex field is opposite to the vortex direction formed by the movement of the rotor 3. The above-mentioned rotor is the rotor of the drive motor, and the above-mentioned drive motor drives the swing hammer 2 to rotate at a high speed.

[0025] Specifically, the swing hammer 2 rotates clockwise (in the M direction), and a hammer edge 21 is provided at the front end of the swing hammer. During the high-speed rotation, the hammer edge 21 forms a shear force on the particles between the hammer edge 21 and the groove, thereby accelerating the crushing of the particles.

[0026] In this embodiment, the inclination of the transition slope 122 is smaller than that of the inclined surface 121, the abutting surface 123 is a vertical plane, and the upper end point of the abutting surface 123 is the highest point of the tooth block. The above structure makes one side of the groove 13 a vertical surface and the other side an inclined surface.

[0027] When in use, the toothed plates are bent into a circle and distributed around the swinging hammers 2, and the spacing between each swinging hammer 2 and the toothed plates is the same. Figure 1 As shown, the hammer 2 rotates clockwise (M direction) at high speed under the drive of the driving motor, and the particles on the transition slope 122 fall into the groove 13 under the action of the high-speed rotating hammer 2. The inclined surface 121 causes the particles in the groove 13 to collide repeatedly, accelerating the particle crushing.

[0028] Specifically, the hammer 2 is driven by the driving motor to rotate at a speed of 110 m / s. The impact of the hammer blade on the particle is called the first collision (elastic collision), and the collision of the tooth plate on the particle is called the second collision (elastic collision), followed by the third, fourth, and so on collisions, which crush the particles into smaller and smaller pieces. In addition, the collision between particles is also an important factor in particle crushing. The shear force formed by the sharp hammer blade of the hammer and the groove of the tooth plate produces efficient crushing of the particles. The high-speed rotation of the hammer forms a cyclonic vortex field in the groove of the tooth plate. The rotation direction of the vortex is opposite to the vortex formed by the rotor movement, which intensifies the collision and crushing of the particles.

[0029] In order to verify the performance of the tooth plate, the material was divided into 4 parts and crushed by tooth plates with different gaps (2.4*2.8mm, 2.0*2.8mm, 2.4*2mm, 1.8*2.0mm). The four materials were hammer crushed. At the same time, the sampling laboratory took samples to analyze the fineness and penetration. In order to reduce the possibility of contingency, error, etc., we conducted 5 groups of experimental comparisons:

[0030] The comparison results of different tooth plate gap fineness are shown in Table 1

[0031] 2.4*2.8mm 2.0*2.8mm 2.4*2.0mm 1.8*2.0mm 1 0.045 0.031 0.020 0.009 2 0.042 0.029 0.025 0.005 3 0.046 0.027 0.019 0.007 4 0.037 0.032 0.024 0.009 5 0.049 0.029 0.023 0.009 Mean 0.0438 0.0296 0.0222 0.0078

[0032] Table 1: Effect of different tooth plate gaps on fineness

[0033] The comparison results of the transmission amount of different tooth plate gaps are shown in Table 2

[0034] 2.4*2.8mm 2.0*2.8mm 2.4*2.0mm 1.8*2.0mm 1 20 100 180 300 2 30 150 150 300 3 20 120 180 250 4 40 110 190 290 5 30 130 170 300 Mean 28 122 174 288

[0035] Table 2: Effect of different tooth plate gaps on fineness

[0036] in conclusion

[0037] 2.4*2.8mm 2.0*2.8mm 2.4*2.0mm 1.8*2.0mm Fineness 0.0438 0.0296 0.0222 0.0078 Transmission 28 122 174 288

[0038] After experiments, it was found that the fineness of the tooth plate with a gap of 1.8*2.0mm was reduced by 0.036, and the permeability was increased by 260 compared with the tooth plate with a gap of 2.4*2.8mm, and the material performance was significantly improved.

[0039] from Figure 2 It can be seen that the tooth plate with a gap of 1.8*2.0 mm means that the distance between two adjacent tooth blocks is 2.0 mm, and the height of the tooth block is 1.8 mm.

[0040] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0043] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tooth plate of a hammer crusher, arranged on the periphery of a swing hammer, characterized in that: It includes a flexible bottom plate and tooth blocks equidistantly distributed on the flexible bottom plate, each tooth block has the same structure, a groove is formed between two adjacent tooth blocks, and the high-speed rotating hammer forms a cyclone eddy flow field in the groove, and the rotation direction of the cyclone eddy flow field is opposite to the eddy flow direction formed by the rotor movement.

2. The tooth plate of the hammer crusher according to claim 1, characterized in that: The tooth plates are bent into a circle and distributed around the periphery of the swing hammer.

3. The tooth plate of the hammer crusher according to claim 2, characterized in that: The tooth block is narrow at the top and wide at the bottom, and two sides of the tooth block are respectively provided with an abutment surface and an inclined surface, and the upper end of the tooth block is a transition slope toward the inclined surface.

4. The tooth plate of the hammer crusher according to claim 3, characterized in that: The inclination of the transition slope is smaller than the inclination of the inclined surface.

5. The tooth plate of the hammer crusher according to claim 4, characterized in that: The abutting surface is a vertical plane, and the upper end point of the abutting surface is the highest point of the gear block.

6. The tooth plate of the hammer crusher according to claim 5, characterized in that: The swing hammer rotates clockwise, and a hammer cutting edge is arranged at the front end of the swing hammer, and a shearing force acting on the particles is formed between the hammer cutting edge and the groove.

7. The tooth plate of the hammer crusher according to claim 1, characterized in that: The distance between two adjacent tooth blocks is 2.0 mm, and the height of the tooth block is 1.8 mm.

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