A composite tooth roll structure of a crusher

Abstract

This utility model discloses a composite toothed roller structure for a crusher, relating to the technical field of fertilizer production equipment. The composite toothed roller structure includes: a frame; a toothed roller assembly mounted on the frame, comprising a roller shaft, a first tooth group, and a second tooth group, the roller shaft being rotatably connected to the frame; the first tooth group being fixedly mounted on the roller shaft; and the second tooth group being fixedly mounted on both sides of the roller shaft corresponding to the first tooth group, with a discharge trough on the surface of the second tooth group extending along its extension direction; and a negative pressure assembly fixedly mounted on the frame, comprising a negative pressure pipe mounting part and a quick-release head, the negative pressure pipe mounting part being fixedly mounted on the frame, and the quick-release head being detachably connected to the negative pressure pipe mounting part. This utility model, through the coordinated action of the first and second tooth groups, agitates the dispersed material to prevent adhesion to the equipment. It also includes a discharge trough and a negative pressure assembly to remove wet, sticky fertilizer, improving production efficiency and extending equipment life.

Description

Technical Field

[0001] This utility model relates to the technical field of fertilizer production equipment, and in particular to a composite toothed roller structure for a crusher. Background Technology

[0002] Chemical fertilizers, also known as chemical fertilizers, are fertilizers containing nutrients needed for crop growth, produced using chemical and physical methods. Currently, in the process of processing and using chemical fertilizers, the fertilizer blocks need to be crushed by the toothed rollers of a crusher.

[0003] Existing fertilizer raw materials are characterized by easy agglomeration, easy moisture absorption, and high corrosivity. The easy moisture absorption and high corrosivity can easily affect the service life of production equipment. Especially in southern my country, fertilizer raw materials are prone to material accumulation and adhesion to the inside of production equipment during the crushing process, which can cause the crusher to overload and shut down or even be corroded and damaged, affecting production efficiency, reducing equipment life and increasing production costs.

[0004] Therefore, there is a need for a composite toothed roller structure that can handle easily hygroscopic and corrosive fertilizers. Utility Model Content

[0005] The main purpose of this invention is to provide a composite toothed roller structure for a crusher, which aims to solve the problem of short equipment life caused by the hygroscopicity and corrosiveness of fertilizer raw materials in the production process of existing crushers.

[0006] To achieve the above objectives, the present invention proposes a composite toothed roller structure for a crusher, comprising:

[0007] frame;

[0008] A toothed roller assembly is disposed at one end of the frame. The toothed roller assembly includes a roller shaft, a first tooth group, and a second tooth group. The roller shaft is rotatably connected to the frame. There are multiple first tooth groups and multiple second tooth groups. The first tooth groups are fixedly disposed on the roller shaft and are evenly spaced apart from each other. The second tooth groups are fixedly disposed on the roller shaft on both sides corresponding to the first tooth groups. The surface of the second tooth group is also provided with a discharge groove, which is disposed along the extending direction of the second tooth group.

[0009] A negative pressure assembly is fixedly mounted on the frame. The negative pressure assembly includes a negative pressure pipe mounting part and a quick-release head. The negative pressure pipe mounting part is fixedly mounted on the frame. The quick-release head is detachably connected to the negative pressure pipe mounting part and faces the toothed roller assembly. The quick-release head has a through hole corresponding to the axis of the negative pressure pipe mounting part.

[0010] Preferably, the tooth tip of the first tooth group is an axe-shaped tooth tip, the tooth height of the first tooth group is 80~120mm, and the first tooth group is arranged in a spiral along the axial direction of the roller shaft.

[0011] Preferably, the tooth tip of the second tooth group is a prism structure, the discharge groove is provided along the side wall of the second tooth group, and the tooth height of the second tooth group is 40~60mm.

[0012] Preferably, the cross-section of the discharge trough is an inverted trapezoid, with an upper width of 15-18 mm and a lower width of 22-25 mm. The trough wall forms an angle of 45°-60° with the radial direction of the roller shaft.

[0013] Preferably, the negative pressure pipe mounting part further includes a dust cover and a quick-release flange, the dust cover and the quick-release flange are respectively disposed at both ends of the negative pressure pipe mounting part along the axial direction, the frame is provided with mounting holes corresponding to the negative pressure pipe mounting part, the negative pressure pipe mounting part passes through the mounting holes and abuts against the hole wall of the mounting holes, the dust cover is rotatably connected to one end of the negative pressure pipe mounting part away from the roller shaft, the quick-release flange is fixedly disposed on one end of the negative pressure pipe mounting part near the roller shaft, and the quick-release head is detachably connected to the quick-release flange.

[0014] Preferably, the opening direction of the through hole of the quick-release head is towards the bottom of the discharge trough, and the quick-release flange is set at 45°~60° with the axis of the negative pressure pipe mounting part.

[0015] The composite toothed roller structure of this invention disperses agglomerated fertilizer particles by creating disturbance through the combination of a first and second tooth group. Simultaneously, a discharge chute on the second tooth group facilitates material discharge, preventing fertilizer particles from accumulating on the roller shaft. Furthermore, this invention includes a negative pressure component to assist in clearing accumulated fertilizer particles, further resolving blockage issues in the fertilizer crushing process, ensuring continuous production, improving production efficiency, reducing production costs, and extending equipment lifespan. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the composite toothed roller structure according to an embodiment of the present invention;

[0018] Figure 2This is a schematic diagram of the toothed roller assembly according to an embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of a toothed roller assembly according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of a negative pressure component according to an embodiment of the present invention.

[0021] Explanation of icon numbers:

[0022] 1000 Composite toothed roller structure 100 frame 200 Toothed roller assembly 210 rollers 220 First tooth group 230 Second tooth group 231 Discharge trough 300 negative pressure components 310 Negative pressure pipe installation section 311 Dust cover 312 quick-release flange 320 quick-release head

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that all directional indicators in this embodiment are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0027] like Figures 1-4As shown, this utility model proposes a composite toothed roller structure 1000 for a crusher, including: a frame 100; a toothed roller assembly 200, which is disposed at one end of the frame 100. The toothed roller assembly 200 includes a roller shaft 210, a first tooth group 220, and a second tooth group 230. The roller shaft 210 is rotatably connected to the frame 100. There are multiple first tooth groups 220 and multiple second tooth groups 230. The first tooth groups 220 are fixedly disposed on the roller shaft 210 and are evenly spaced apart. The second tooth groups 230 are fixedly disposed on both sides corresponding to the first tooth groups 220. The second tooth group 230 is placed on the roller 210 and is also provided with a discharge groove 231. The discharge groove 231 is arranged along the extension direction of the second tooth group 230. The negative pressure component 300 is fixedly installed on the frame 100. The negative pressure component 300 includes a negative pressure pipe mounting part 310 and a quick release head 320. The negative pressure pipe mounting part 310 is fixedly installed on the frame 100. The quick release head 320 is detachably connected to the negative pressure pipe mounting part 310 and faces the tooth roller assembly 200. The quick release head 320 is provided with a through hole corresponding to the axis of the negative pressure pipe mounting part 310.

[0028] It is understood that the crusher involved in this utility model is a double roll crusher. A double roll crusher is a mechanical device that uses two sets of independently driven rotating rollers to rotate relative to each other, thereby generating squeezing force and grinding shear force to crush materials. The composite toothed roller structure 1000 disclosed in this utility model is one of the rotating rollers in the double roll crusher. There are two composite toothed roller structures 1000 disclosed in this utility model in the double roll crusher, and the two composite toothed roller structures 1000 are arranged symmetrically.

[0029] In this embodiment, the surface of the toothed roller assembly 200 is a composite toothed roller composed of a first tooth group 220 and a second tooth group 230. The material of the first tooth group 220 can be selected from hard wear-resistant alloys such as high-chromium cast iron, etc. The first tooth group 220 is a coarse crushing tooth, mainly responsible for crushing agglomerated and large pieces of fertilizer material. The material of the second tooth group 230 is high-toughness wear-resistant steel. The second tooth group 230 is a fine crushing tooth, mainly responsible for further shearing, grinding and refining the particle size of the fertilizer material crushed by the first tooth group 220. At the same time, by forming a disturbance, it can clean the material between the teeth to prevent clogging of the gaps between the teeth of the toothed roller, improve the working life of the toothed roller assembly 200, and effectively prevent the clogging of wet and sticky fertilizer material.

[0030] In detail, the surface of the second tooth group 230 is also provided with a discharge groove 231. The discharge groove 231 is disposed on the side wall of the second tooth group 230 away from the first tooth group 220, and the discharge groove 231 is disposed along the extension direction of the second tooth group 230, that is, the discharge groove 231 is disposed radially along the second tooth group 230 and extends from the tooth peak of the second tooth group 230 to the central axis of the second tooth group 230. The discharge groove 231 is used to further discharge the wet and sticky fertilizer material radially out of the tooth gap of the second tooth group 230 during the crushing process, and protect the working life of the tooth roller assembly 200. The quick-release head 320 in the negative pressure component 300 is set at the bottom of the discharge trough 231. The quick-release head 320 in the negative pressure component 300 is used to suck up fertilizer granules under negative pressure, so that the wet and sticky fertilizer material is removed from the surface of the toothed roller component 200. It can be understood that the operator inserts the negative pressure pipe into the negative pressure pipe mounting part 310 with a central through hole and connects it to the quick-release head 320. The quick-release head 320 is equipped with a filter screen or a one-way valve assembly at one end near the toothed roller component 200, so that the wet and sticky fertilizer granules are removed from the surface of the toothed roller component 200 by negative pressure suction, while avoiding discharge along the quick-release head 320.

[0031] In one embodiment, the tooth tip of the first tooth group 220 is an axe-shaped tooth tip, the tooth height of the first tooth group 220 is 80~120mm, and the first tooth group 220 is arranged in a spiral along the axial direction of the roller shaft 210.

[0032] In this embodiment, the tooth height of the first tooth group 220 is 100mm, the cutting angle of the axe-shaped tooth tip is 60°, and the axial pitch is 150mm. There are multiple first tooth groups 220. Each first tooth group 220 has 10 teeth evenly distributed along the circumference of the roller shaft 210. Multiple first tooth groups 220 are arranged in a spiral along the axial direction of the roller shaft 210. The first tooth group 220 is used to impact and crush the wet and sticky fertilizer material. The dispersed wet and sticky fertilizer material falls radially along the first tooth group 220 to the tooth tip of the second tooth roller.

[0033] In one embodiment, the tooth tip of the second tooth group 230 is a prism structure, the discharge groove 231 is provided along the side wall of the second tooth group 230, and the tooth height of the second tooth group 230 is 40~60mm.

[0034] In this embodiment, the second tooth group 230 is a prismatic tooth with a discharge groove 231 on the side wall. The second tooth group 230 is provided with scraping ridges along the radial direction of the roller shaft 210. The scraping ridges are used to stir the fertilizer material to prevent it from sticking. The ratio of the number of the second tooth group 230 to the number of the first tooth group 220 is 2:1. The two second tooth groups 230 are symmetrically arranged on the left and right sides of one first tooth group 220 along the axial direction of the roller shaft 210, so that the two second tooth groups 230 and one first tooth group 220 form a mountain-shaped composite structure. The composite tooth roller structure can disturb the wet and sticky material and prevent the wet and sticky material from adhering to the tooth roller assembly 200.

[0035] In one embodiment, the discharge trough 231 has an inverted trapezoidal cross section, with an upper width of 15-18 mm and a lower width of 22-25 mm. The trough wall of the discharge trough 231 forms an angle of 45°-60° with the radial direction of the roller shaft 210.

[0036] In this embodiment, the upper width of the discharge trough 231 is 15mm and the lower width is 25mm. The trough wall of the discharge trough 231 forms a 45° angle with the radial direction of the roller shaft 210. After the fertilizer material is finely crushed at the second tooth group 230, some of the lighter fertilizer material adhering to the tooth peaks is separated from the second tooth group 230 by centrifugal force. Another part of the heavier fertilizer material is difficult to throw out and gradually accumulates on the surface of the second tooth group 230. With the rotation of the roller shaft 210, the heavier fertilizer material will gradually move and adhere to the discharge trough 231. Then, due to the inverted trapezoidal structure of the discharge trough 231 and the angle with the roller shaft 210, the part of the excessively heavy fertilizer material is forced to be thrown out along the axial direction of the roller shaft 210 and separated from the second tooth group 230 during subsequent dispersion. The quick-release head 320 of the negative pressure component 300 corresponds to the discharge grooves 231 at both ends of the roller 210 along the axial direction. The through hole on the quick-release head 320 corresponds to the bottom of the discharge groove 231. The fertilizer material is discharged from the second tooth group 230 by the negative pressure.

[0037] In one embodiment, the negative pressure pipe mounting part 310 further includes a dust cover 311 and a quick-release flange 312. The dust cover 311 and the quick-release flange 312 are respectively disposed at both ends of the negative pressure pipe mounting part 310 along the axial direction. The frame 100 is provided with a mounting hole corresponding to the negative pressure pipe mounting part 310. The negative pressure pipe mounting part 310 passes through the mounting hole and abuts against the hole wall. The dust cover 311 is rotatably connected to the end of the negative pressure pipe mounting part 310 away from the roller shaft 210. The quick-release flange 312 is fixedly disposed on the end of the negative pressure pipe mounting part 310 near the roller shaft 210. The quick-release head 320 is detachably connected to the quick-release flange 312.

[0038] In this embodiment, the dust cover 311 is disposed on the negative pressure pipe mounting part 310 at one end away from the roller shaft 210 assembly. This separates the inside of the crusher from the external environment when the operator is not connected to the negative pressure pipe, preventing impurities from the external environment from entering the crusher and thus improving equipment lifespan, or allowing material inside the crusher to be discharged from the negative pressure pipe mounting part 310 to save material. The quick-release flange 312 is disposed on the negative pressure pipe mounting part 310 at one end near the roller shaft 210. The quick-release flange 312 is used to connect to the quick-release head 320. It is understood that the quick-release flange 312 can also be provided with an elastic sealing ring in its circumferential direction to ensure the airtightness of the negative pressure assembly 300. One end of the quick-release head 320 has a snap-fit ​​fixing part and a threaded fixing part fitted onto the snap-fit ​​fixing part, which are used to snap-fit ​​the quick-release flange 312 and thread-connect the negative pressure pipe, respectively, to ensure the airtightness of the negative pressure assembly 300.

[0039] In one embodiment, the opening direction of the through hole of the quick-release head 320 is towards the bottom of the discharge trough 231, and the quick-release flange 312 is set at an angle of 45° to 60° with the axis of the negative pressure pipe mounting part 310.

[0040] In this embodiment, the quick-release flange 312 and the negative pressure pipe mounting part 310 are set at 45° to each other. The quick-release head 320 is snapped to the quick-release flange 312, so that the quick-release head 320 and the negative pressure pipe mounting part 310 are also at a 45° angle. This allows the wet and sticky fertilizer material adhering to the bottom wall of the discharge trough 231 to be separated by the negative pressure. The 45° angle allows the quick-release head 320 to directly correspond to the bottom wall of the discharge trough 231 while preventing the fertilizer material from being discharged from the equipment along the quick-release head 320, thus enhancing the cleaning effect of the toothed roller assembly 200 on the wet and sticky fertilizer material.

[0041] The composite toothed roller structure of this crusher disperses fertilizer particles through the coordinated action of the first and second tooth groups, enhancing the dispersion effect while generating disturbance to prevent adhesion of agglomerated fertilizer particles. Simultaneously, a discharge chute on the second tooth group facilitates the discharge of wet, sticky fertilizer materials, preventing fertilizer particles from accumulating on the roller shaft. Furthermore, this invention incorporates a negative pressure component to assist in clearing accumulated fertilizer particles, further resolving blockage issues in the fertilizer crushing process, ensuring continuous production, improving production efficiency, reducing production costs, and extending equipment lifespan.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A composite toothed roller structure for a crusher, characterized in that, include: frame; A toothed roller assembly is disposed at one end of the frame. The toothed roller assembly includes a roller shaft, a first tooth group, and a second tooth group. The roller shaft is rotatably connected to the frame. There are multiple first tooth groups and multiple second tooth groups. The first tooth groups are fixedly disposed on the roller shaft and are evenly spaced apart from each other. The second tooth groups are fixedly disposed on the roller shaft on both sides corresponding to the first tooth groups. The surface of the second tooth group is also provided with a discharge groove, which is disposed along the extending direction of the second tooth group. A negative pressure assembly is fixedly mounted on the frame. The negative pressure assembly includes a negative pressure pipe mounting part and a quick-release head. The negative pressure pipe mounting part is fixedly mounted on the frame. The quick-release head is detachably connected to the negative pressure pipe mounting part and faces the toothed roller assembly. The quick-release head has a through hole corresponding to the axis of the negative pressure pipe mounting part.

2. The composite tooth roll structure of a crusher as claimed in claim 1, wherein, The first set of teeth has an axe-shaped tooth tip, the tooth height of the first set of teeth is 80~120mm, and the first set of teeth is arranged in a spiral along the axial direction of the roller shaft.

3. The composite tooth roll construction for a crusher as claimed in claim 2 wherein, The tooth tip of the second tooth group has a prismatic structure, the discharge groove is provided along the side wall of the second tooth group, and the tooth height of the second tooth group is 40~60mm.

4. The composite tooth roll construction for a crusher as claimed in claim 3 wherein, The discharge trough has an inverted trapezoidal cross-section, with an upper width of 15-18 mm and a lower width of 22-25 mm. The trough wall forms an angle of 45°-60° with the radial direction of the roller shaft.

5. The composite tooth roll structure of a crusher as claimed in claim 1, wherein, The negative pressure pipe mounting part also includes a dust cover and a quick-release flange. The dust cover and quick-release flange are respectively disposed at both ends of the negative pressure pipe mounting part along the axial direction. The frame is provided with mounting holes corresponding to the negative pressure pipe mounting part. The negative pressure pipe mounting part passes through the mounting holes and abuts against the hole wall of the mounting holes. The dust cover is rotatably connected to the end of the negative pressure pipe mounting part away from the roller shaft. The quick-release flange is fixedly disposed on the end of the negative pressure pipe mounting part near the roller shaft. The quick-release head is detachably connected to the quick-release flange.

6. The composite toothed roller structure of the crusher as described in claim 5, characterized in that, The opening direction of the through hole of the quick-release head is towards the bottom of the discharge trough, and the quick-release flange is set at 45°~60° with the axis of the negative pressure pipe mounting part.

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