Crusher with alternate teeth

Abstract

The utility model relates to an alternating tooth crusher which comprises a driving motor, a speed reducer, an alternating tooth crushing roller, an angle fluted disc, a convex fluted disc, a crusher rack and an auxiliary tooth bulge, the driving motor is in driving connection with the speed reducer, and the speed reducer is fixedly arranged on the side edge of the crusher rack; the speed reducer is in driving connection with the two alternate tooth crushing rollers which are mounted in the crusher rack in parallel, the angular fluted discs and the convex fluted discs are alternately arranged on the alternate tooth crushing rollers, a plurality of auxiliary tooth bulges are mounted on the inner side of the crusher rack at equal intervals, and one auxiliary tooth bulge directly faces one convex fluted disc; the auxiliary tooth protrusions attached to the convex fluted discs are arranged in front of and behind the alternate tooth crushing roller, so that the alternate tooth crushing roller can crush part of overflowing materials during reverse rotation, meanwhile, the angular fluted discs and the convex fluted discs which are alternately arranged and staggered can effectively control the size of the materials, flaky large gangues can be crushed to be below 300 mm, and the crushing efficiency is improved. The size of materials can be effectively controlled, overflowing materials can be crushed, and it can be ensured that the coal mine production efficiency is not affected.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, specifically to an alternating tooth crusher. Background Technology

[0002] The main working components of current classifying crushers are two parallel crushing rollers, each with a certain number of crushing teeth (tooth plates) arranged axially. These teeth rotate inwards or outwards depending on the properties and parameters of the material being crushed. The material is either torn under mutually perpendicular stress, slipped under shear force, or crushed under the combined action of both. Existing SSC(X) series high-capacity classifying crushers cannot crush 300mm-500mm flaky gangue due to large gear clearances. This leads to the intelligent gangue separator being unable to handle 300mm-500mm gangue, causing damage to some nozzles in the initial gangue separator. Furthermore, existing crushers can only rotate forward. When too much material is fed, it overflows beyond the crushing rollers and slides down the side wall of the frame onto the conveyor belt, affecting the operation of the gangue separator. While adding a hopper can prevent overflow, it severely limits the size of the feed opening, making it unsuitable for handling coal blocks of varying sizes encountered in coal mining.

[0003] Currently, patent publication number CN109225472A discloses a double-layer crusher, including a machine body structure and a motor. The machine body structure has an inlet at the upper end and an outlet at the lower end. A rotating shaft is installed inside the motor and is fixedly connected to the machine body structure. A rolling shaft is installed inside the machine body structure. A second bearing is installed on the right side of the rolling shaft, and the rolling shaft is fixedly connected to the machine body structure through the second bearing. A driven gear is installed on the left surface of the rolling shaft. Crushing teeth are installed on the surface of the rolling cylinder. A guide hole is opened inside the driving gear. This double-layer crusher is divided into upper and lower layers inside the machine body structure. The ore entering the machine body structure undergoes secondary crushing. The rolling cylinder surface is equipped with interlocking crushing teeth, which rub against each other, so that the ore is fully crushed.

[0004] As can be seen from the above-disclosed technical content, as prior art, the invention with announcement number CN101745442B crushes materials by means of two layers of interlaced crushing teeth, but the inner side of the machine body structure does not have any components to prevent materials from rolling down, and cannot effectively solve the problem of material spillage. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides an alternating tooth crusher, which can effectively control the size of materials, crush overflowing materials, and ensure that the production efficiency of coal mines is not affected.

[0006] To achieve the above objectives, this utility model provides an alternating tooth crusher, comprising a drive motor, a reducer, alternating tooth crushing rollers, angular tooth discs, convex tooth discs, a crusher frame, and auxiliary tooth protrusions. The drive motor drives and connects to the reducer, which is fixedly installed on the side of the crusher frame. The reducer drives and connects to two alternating tooth crushing rollers that are installed parallel to each other inside the crusher frame. Angular tooth discs and convex tooth discs are alternately arranged on the alternating tooth crushing rollers. Multiple auxiliary tooth protrusions are installed at equal intervals on the inner side of the crusher frame, with one auxiliary tooth protrusion facing one convex tooth disc.

[0007] In addition, the alternating tooth crusher proposed according to the above embodiments of this utility model may also have the following additional technical features:

[0008] As a further improvement of this utility model, the angular tooth disk and convex tooth disk of the two alternating tooth crushing rollers in the crusher frame are arranged in a staggered manner.

[0009] As a further improvement of this utility model, the drive motor is connected to the reducer via a hydraulic torque converter or a magnetic drive shaft.

[0010] As a further improvement of this utility model, the shaft centers of the two alternating tooth crushing rollers inside the crusher frame are on the same horizontal plane.

[0011] As a further improvement of this utility model, the crusher frame is provided with a flushing water spray pipe.

[0012] By means of the above solution, this utility model has at least the following advantages: Compared with conventional crushers, by installing convex toothed discs on alternating toothed crushing rollers and arranging auxiliary toothed discs that fit the convex toothed discs on the inner side of the crusher frame corresponding to the convex toothed discs, large flaky gangue can be crushed to below 300mm. At the same time, the alternating toothed crushing rollers can crush the overflowing material when they reverse. The alternating and intersecting convex toothed discs can effectively control the size of the material and crush the overflowing material, ensuring that the coal mine production efficiency is not affected. Attached Figure Description

[0013] Figure 1 This is a 3D schematic diagram of an alternating tooth crusher;

[0014] Figure 2 This is a top view of an alternating tooth crusher;

[0015] Figure 3 This is a schematic diagram of the crusher frame structure of an alternating tooth crusher;

[0016] Figure 4 This is a three-dimensional diagram showing the arrangement of the angular tooth discs and convex tooth discs of the alternating tooth crushing rollers in an alternating tooth crusher.

[0017] Figure 5This is a 3D view of the angular tooth disc of an alternating tooth crusher;

[0018] Figure 6 This is a 3D view of the convex tooth disc of an alternating tooth crusher;

[0019] In the diagram: 1. Drive motor, 2. Reducer, 3. Alternating tooth crushing roller, 3-1. Gear disc, 3-2. Convex tooth disc, 4. Crusher frame, 4-1. Auxiliary tooth convex. Detailed Implementation

[0020] The alternating tooth crusher of this utility model is described below with reference to the accompanying drawings.

[0021] In Embodiment 1 of this application, as Figures 1 to 6 As shown, this alternating tooth crusher (hereinafter referred to as "the present invention") includes a drive motor 1, a reducer 2, alternating tooth crushing rollers 3, angular tooth discs 3-1, convex tooth discs 3-2, a crusher frame 4, and auxiliary tooth protrusions 4-1. The drive motor 1 drives and connects to the reducer 2, which is fixedly installed on the side of the crusher frame 4. The reducer 2 drives and connects to two alternating tooth crushing rollers 3 installed parallel to each other inside the crusher frame 4. Angular tooth discs 3-1 and convex tooth discs 3-2 are alternately arranged on the alternating tooth crushing rollers 3. Multiple auxiliary tooth protrusions 4-1 are installed at equal intervals inside the crusher frame 4, with one auxiliary tooth protrusion 4-1 directly opposite one convex tooth disc 3-2. The angular tooth discs 3-1 and convex tooth discs 3-2 of the two alternating tooth crushing rollers 3 inside the crusher frame 4 are staggered.

[0022] A double-layer crusher (hereinafter referred to as "the patent") with invention announcement number CN109225472A crushes materials through two layers of staggered crushing teeth. However, the inner side of the machine body does not have any components to prevent material from rolling off, and it cannot effectively solve the problem of material overflow. The present invention, by installing convex tooth discs 3-2 on the alternating tooth crushing roller 3 and arranging auxiliary tooth protrusions 4-1 that fit the convex tooth discs 3-2 on the inner side of the crusher frame 4 corresponding to the convex tooth discs 3-2, can crush large flaky gangue to less than 300mm. At the same time, the alternating tooth crushing roller 3 can crush the overflowing material when it reverses. The alternating and staggered tooth discs 3-1 and convex tooth discs 3-2 can effectively control the size of the material and crush the overflowing material, ensuring that the coal mine production efficiency is not affected.

[0023] To further optimize the working efficiency of this application and to prevent the alternating tooth crushing roller 3 from jamming, the drive motor 1 is connected to the reducer 2 via a hydraulic torque converter or a magnetic drive shaft. To maximize the size of the feed opening, the axes of the two alternating tooth crushing rollers 3 inside the crusher frame 4 are on the same horizontal plane. To prevent dust, a flushing water spray pipe is provided inside the crusher frame 4.

[0024] Once the alternating tooth crusher is installed, the equipment can be put into use.

[0025] When this utility model is used, its specific operation is as follows:

[0026] In operation, the conveyor belt feeds material into the feed inlet of the crusher frame 4. The drive motor 1 drives two alternating toothed crushing rollers 3 to rotate forward via the reducer 2. Due to the small gap between the staggered angle tooth discs 3-1 and convex tooth discs 3-2, the size of the crushed material can be controlled to be below 300mm. When there is too much material and it overflows between the two alternating toothed crushing rollers 3, the operator can control the drive motor 1 to drive the two alternating toothed crushing rollers 3 to rotate in reverse. During the reverse rotation, the angle tooth discs 3-1 and convex tooth discs 3-2 of the alternating toothed crushing rollers 3 will cooperate with the auxiliary tooth protrusions 4-1 preset on the inner side of the crusher frame 4 to crush the overflowing material. Since the conveyor belt continuously supplies material to the crusher, the reverse rotation needs to be started intermittently to prevent material from overflowing outside the equipment.

[0027] In summary, the alternating tooth crusher of this utility model, by installing a convex tooth disc 3-2 on the alternating tooth crushing roller 3 and arranging auxiliary tooth protrusions 4-1 that fit the convex tooth disc 3-2 on the inner side of the crusher frame 4 corresponding to the convex tooth disc 3-2, can crush large flaky gangue to less than 300mm. At the same time, the alternating tooth crushing roller 3 can crush the overflowing material when it reverses. The alternating and intersecting convex tooth discs 3-1 and convex tooth discs 3-2 can effectively control the size of the material, crush the overflowing material, and ensure that the coal mine production efficiency is not affected.

[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. An alternate tooth crusher, comprising a driving motor (1), a speed reducer (2) and a crusher frame (4), the driving motor (1) is drivingly connected with the speed reducer (2), the speed reducer (2) is fixedly installed on the side of the crusher frame (4), characterized in that, The speed reducer (2) is connected with two alternate tooth crushing rollers (3) which are installed in parallel in the crusher frame (4), the alternate tooth crushing rollers (3) are alternately arranged with the angular tooth disc (3-1) and the convex tooth disc (3-2), a plurality of auxiliary tooth convexes (4-1) are installed in the crusher frame (4) at equal intervals, and one auxiliary tooth convex (4-1) is opposite to one convex tooth disc (3-2).

2. The alternative tooth crusher according to claim 1, characterized in that, The angular tooth disc (3-1) and the convex tooth disc (3-2) of the two alternate tooth crushing rollers (3) in the crusher frame (4) are arranged in a staggered manner.

3. The alternative tooth crusher according to claim 2, characterized in that, The driving motor (1) is connected with the speed reducer (2) through a hydraulic torque converter or a magnetic transmission shaft.

4. The alternative tooth crusher according to claim 1, characterized in that, The shafts of the two alternate tooth crushing rollers (3) in the crusher frame (4) are in the same horizontal plane.

5. The alternative tooth crusher according to claim 4, characterized in that, The crusher frame (4) is internally provided with a flushing water spraying pipe.

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