Double-roller crusher for natural rubber raw materials

Abstract

The utility model discloses a double-roller crusher for natural rubber raw materials, which comprises two groups of rollers which are arranged in parallel and have different rotating speeds, one group of rollers rotate clockwise, and the other group of rollers rotate clockwise; a plurality of cutters are uniformly arranged on the cylindrical surface of each group of rollers at intervals along the axial direction, and a cutter on the other group of rollers is inserted into a gap between any two adjacent groups of cutters on each group of rollers; when the double-roller crusher for the natural rubber raw materials disclosed by the utility model is used for crushing natural rubber, the cutters on the two groups of rollers can be used for kneading and extruding the materials and pulling and shredding the materials towards two sides below the tangent part, so that the crushing effect of the natural rubber materials can be better realized.

Description

Technical Field

[0001] This utility model relates to the field of roller crushers, and more specifically, to a double roller crusher for natural rubber raw materials. Background Technology

[0002] During the processing of natural rubber raw materials, the raw materials need to be washed and crushed multiple times. The purpose of crushing is to expose the impurities carried in the material so that they can be removed by subsequent washing.

[0003] Patent CN209851385U discloses a sawtooth-shaped double-roller rubber pulverizer, which has two sets of rollers rotating in opposite directions inside. The rubber raw material fed in is pulverized by the blades on the rollers. However, the blades on the surface of the rollers are concave and convex sawtooths, and the extension direction of the concave and convex sawtooths is the axis of the rollers. The arrangement of the blades is relatively dense. During the rubber pulverization process, it can pulverize the material into small powder particles. Obviously, the material particles are too fine, which is not conducive to the subsequent washing and impurity removal of the material. Therefore, it is necessary to improve the above equipment to adapt to the crushing operation in the washing and impurity removal process of natural rubber materials. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a double-roll crusher for natural rubber raw materials.

[0005] The embodiments of this utility model are achieved through the following technical solutions:

[0006] A double-roll crusher for natural rubber raw materials includes two sets of rollers arranged in parallel with different rotation speeds, wherein one set of rollers rotates clockwise and the other set of rollers rotates clockwise.

[0007] Each set of rollers has a number of cutters evenly spaced along the axial direction on its cylindrical surface, and a cutter from another set of rollers is inserted into the gap between any two adjacent sets of cutters on each set of rollers.

[0008] Furthermore, in the axial direction of the rollers, the gap width between any two adjacent sets of cutters on each set of rollers is adapted to the width of the cutters on the other set of rollers.

[0009] Furthermore, the cutting tool includes several sets of cutting teeth arranged around the axis of the roller.

[0010] Furthermore, each set of cutting teeth has a hard alloy component embedded at its free end.

[0011] Furthermore, any one set of rollers is connected to a motor, and the two sets of rollers are connected by a gear set for transmission.

[0012] Furthermore, the motor is connected to a set of rollers with a higher rotational speed; the gear set includes a first gear located at the end of the roller with a higher rotational speed and a second gear located on the roller with a lower rotational speed, the first gear meshing with the second gear and the diameter of the first gear being larger than that of the second gear.

[0013] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0014] In this invention, a double-roll crusher for natural rubber raw materials has blades on both sets of rollers that are evenly spaced along the axial direction of the rollers. During roller assembly, the blades on any roller are inserted into the gap between the two sets of blades on the other set of rollers. Furthermore, since one set of rollers rotates clockwise and the other set rotates counterclockwise, the linear velocity directions of the tangent parts of the two sets of rollers are consistent. Therefore, when crushing natural rubber, the blades on both sets of rollers can knead and squeeze the material, and pull and tear it to both sides below the tangent part, thus achieving a better crushing effect for natural rubber materials. Attached Figure Description

[0015] Figure 1 This is a top view of the double-roll crusher for natural rubber raw materials according to the present invention;

[0016] Figure 2 for Figure 1 Cross-sectional view of the AA plane after rotating 90°;

[0017] Figure 3 for Figure 1 An enlarged view of part B in the image;

[0018] Icons: 1-base, 2-motor, 3-first roller, 30-first cutter, 31-first gap, 4-second roller, 40-second cutter, 41-second gap, 5-gear set, 50-first gear, 51-second gear. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Reference Figures 1 to 3This utility model discloses a double-roll crusher for natural rubber raw materials, including a base 1, on which two sets of rollers are arranged, namely a first roller 3 and a second roller 4. The first roller 3 and the second roller 4 are both horizontally arranged and their axes are parallel to each other. The rotational speeds of the first roller 3 and the second roller 4 are different.

[0021] Specifically, in this embodiment, the rotational speed of the first roller 3 is 40 r / min, and the rotational speed of the second roller 4 is 8 r / min.

[0022] Reference Figure 3 The first roller 3 rotates counterclockwise, and the second roller 4 rotates clockwise. The first roller 3 and the second roller 4 are driven in the following way:

[0023] Reference Figure 1 One end of the first roller 3 is connected to a motor 2 that provides driving force via a coupling. The first roller 3 and the second roller 4 are connected by a gear set 5 located at the other end of the first roller 3. The motor is connected to the first roller 3 with a higher rotational speed. The gear set 5 includes a first gear 50 located at the end of the first roller 3 and a second gear 51 located on the second roller 4. The first gear 50 and the second gear 51 mesh and drive each other. The diameter of the first gear 50 is larger than the diameter of the second gear 51. Through the gear set 5, there is a speed difference between the first roller 3 and the second roller 4 and their rotation directions are not the same.

[0024] Reference Figure 1 In this configuration, several cutters are evenly spaced along the axial direction on the cylindrical surfaces of both sets of rollers, and a cutter from the other set of rollers is inserted into the gap between any two adjacent sets of cutters on each set of rollers; (Refer to...) Figure 2 The cutting tool includes several sets of cutting teeth arranged around the axis of the roller.

[0025] Specifically, a plurality of first cutters 30 are evenly spaced along the axial direction on the first roller 3, and the first gap 31 between any two adjacent groups of first cutters 30 is equal. A plurality of second cutters 30 are evenly spaced along the axial direction on the second roller 4, and the second gap 41 between any two adjacent groups of second cutters 40 is equal. (Referring to...) Figure 3 Both the first cutting tool 30 and the second cutting tool 40 are equipped with three sets of cutting teeth.

[0026] Reference Figure 3 Along the axial direction of the two sets of rollers, the first cutter 30 and the second cutter 40 have the same thickness, and the width of the first gap 31 and the second gap 41 are the same. The gap width between any two adjacent sets of cutters on the two sets of rollers is adapted to the width of the cutter on the other set of rollers, that is, the width of the first gap 31 is adapted to the thickness of the second cutter 40, and the width of the second gap 41 is adapted to the thickness of the first cutter 30.

[0027] In addition, in each set of tools, the free ends of the three sets of cutting teeth are inlaid with hard alloy parts, and the service life of the tools can be increased by replacing the alloy parts.

[0028] The working principle of this utility model is as follows: When the motor 2 is started, the first roller 3 and the second roller 4 begin to rotate. When crushing natural rubber, the cutters on the two sets of rollers rub the material and squeeze it from below the two sets of rollers 3. Due to the speed difference between the first roller 3 and the second roller 4, the material can be pulled and torn along the lower sides of the tangent part of the two sets of rollers, thereby realizing the crushing and processing of natural rubber raw materials.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A double-roll crusher for natural rubber raw materials, comprising two sets of parallel rollers with unequal rotation speeds, wherein one set of rollers rotates clockwise and the other set of rollers rotates clockwise, characterized in that: Each set of rollers has a number of cutters evenly spaced along the axial direction on its cylindrical surface, and a cutter from another set of rollers is inserted into the gap between any two adjacent sets of cutters on each set of rollers.

2. The double-roll crusher for natural rubber raw materials according to claim 1, characterized in that, Along the axial direction of the rollers, the gap width between any two adjacent sets of cutters on each set of rollers is adapted to the width of the cutters on the other set of rollers.

3. The double-roll crusher for natural rubber raw materials according to claim 1, characterized in that, The cutting tool includes several sets of cutting teeth arranged around the axis of the roller.

4. The double-roll crusher for natural rubber raw materials according to claim 3, characterized in that, Each set of cutting teeth has a hard alloy component embedded at its free end.

5. The double-roll crusher for natural rubber raw materials according to claim 1, characterized in that, Each set of rollers is connected to a motor, and the two sets of rollers are connected by a gear set for transmission.

6. The double-roll crusher for natural rubber raw materials according to claim 5, characterized in that, The motor is connected to a set of rollers with a higher rotational speed; the gear set includes a first gear located at the end of the roller with a higher rotational speed and a second gear located on the roller with a lower rotational speed, the first gear meshing with the second gear and the first gear having a larger diameter than the second gear.

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