Ore grinding equipment with dust falling structure

Abstract

The utility model relates to the field of ore grinding equipment, in particular to ore grinding equipment with a dust falling structure, which comprises a bottom plate, supporting legs, a grinding box, a feeding pipe, a discharging pipe, a coaxial reversing assembly, a crushing and grinding assembly and a dust removing assembly, through cooperative work of the coaxial reversing assembly, the crushing and grinding assembly and the dust removal assembly, the integrated process of ore crushing, fine grinding and efficient dust removal is achieved, through combined operation of the coaxial reversing assembly, the crushing and grinding assembly and the dust removal assembly, the stability in the crushing and grinding process is guaranteed, the crushing effect is improved through reverse rotation, and the crushing efficiency is improved. The dust removal assembly removes dust generated in the whole process, cleanness of the working environment and health of operators are maintained, environmental pollution is effectively reduced, in addition, when the two rotating shafts rotate, the first crushing blade and the second crushing blade can cut ore in the opposite directions, and therefore strong shearing force is generated, and the crushing efficiency is improved. Therefore, the ore can be crushed more effectively and further refined.

Description

Technical Field

[0001] The utility model relates to the field of ore grinding equipment, in particular to an ore grinding equipment with a dust reduction structure. Background Art

[0002] Ore grinding equipment converts ore into fine particles through crushing and fine grinding, meeting the particle size requirements of ore raw materials in multiple industries such as building materials, metallurgy, and chemical engineering. At the same time, it improves production efficiency, pays attention to environmental protection and energy conservation, and ensures the high efficiency and sustainability of the processing process.

[0003] During the operation of existing ore grinding equipment, the dust in the equipment box body is often not effectively treated. If this dust is directly discharged into the atmosphere without treatment, it will not only pollute the environment, violate the principle of environmental protection, but also may have an adverse impact on production efficiency and the health of operators, thereby reducing the overall production efficiency.

[0004] Therefore, aiming at the situation that the above-mentioned ore grinding equipment cannot timely treat the dust generated during grinding during the working process, resulting in environmental pollution, an ore grinding equipment with a dust reduction structure can be designed. Through the gear transmission structure and the rotating structure, while efficiently crushing and grinding the ore raw materials, it is convenient to automatically absorb the generated dust, thus avoiding environmental pollution. Summary of the Utility Model

[0005] In order to overcome the problem that the ore grinding equipment cannot timely treat the dust generated during grinding during the working process, resulting in environmental pollution.

[0006] The technical solution of the utility model is: an ore grinding equipment with a dust reduction structure, including a bottom plate, support feet, a grinding box, a feed pipe, a discharge pipe, a coaxial reverse rotation assembly, a crushing and grinding assembly, and a dust removal assembly; four groups of support feet for support are fixedly connected to the lower end of the bottom plate, a grinding box is installed on the upper end of the bottom plate, the feed pipe is arranged at the left end of the grinding box, the discharge pipe is arranged at the right end of the grinding box, the coaxial reverse rotation assembly is installed in the grinding box and a gear transmission structure is arranged in the coaxial reverse rotation assembly, the crushing and grinding assembly is installed in the coaxial reverse rotation assembly, and the dust removal assembly is installed at the rear end of the grinding box.

[0007] Preferably, the bottom plate serves as the support foundation of the entire device. Four sets of feet are fixedly connected to the lower end of the bottom plate. These feet are made of sturdy and durable materials such as steel. The device is firmly fixed to the ground through the feet. The grinding box houses the crushing and grinding components and the coaxial reverse rotation components, which is the main working area for ore grinding. The grinding box is made of strong metal materials such as stainless steel to withstand the impact and wear during the grinding process. The feed pipe feeds the ore raw materials to be ground into the grinding box, and the discharge pipe discharges the ground ore powder out of the grinding box. The coaxial reverse rotation components drive the crushing and grinding components to rotate forward and backward, improving the grinding efficiency and crushing effect. A gear transmission structure is arranged inside the coaxial reverse rotation components. Through the meshing and transmission of the gears, the first crushing blade and the second crushing blade rotate synchronously in the opposite direction. The crushing and grinding components perform crushing and grinding treatments on the ore entering the grinding box. The dust removal components collect and process the dust generated during the grinding process to prevent dust leakage.

[0008] Preferably, the coaxial reverse rotation components include a servo motor, a coupling, a connecting shaft, and a rotating support seat. A support plate is fixedly connected to the right inner wall of the grinding box. A servo motor is installed at the upper end of the support plate. A coupling is installed at the right end of the connecting shaft and is connected to the output shaft of the servo motor through the coupling. The rotating support seat is fixedly connected to the top inside the grinding box. The servo motor serves as the power source, providing stable rotational power for the coaxial reverse rotation components. It has precise speed control capabilities and can adjust the rotational speed and direction as needed. The coupling connects the output shaft of the servo motor and the connecting shaft to ensure the power transmission between the two. The connecting shaft transmits the power of the servo motor to the gear transmission part of the coaxial reverse rotation components, thereby driving the operation of the entire coaxial reverse rotation components. The rotating support seat provides a stable support and rotational platform for the forward rotating shaft. It is internally provided with components such as bearings to reduce the friction and wear during the rotation of the forward rotating shaft.

[0009] Preferably, the coaxial reverse rotation components further include a forward rotating shaft and a reverse rotating shaft. The upper end of the forward rotating shaft is rotatably connected inside the rotating support seat. The reverse rotating shaft is shorter than the forward rotating shaft and is sleeved on the forward rotating shaft. The forward rotating shaft and the reverse rotating shaft achieve the crushing and grinding of the ore through reverse rotation. The forward rotating shaft is longer, and the reverse rotating shaft is shorter. The reverse rotating shaft is sleeved on the outer wall of the forward rotating shaft but rotates in the opposite direction. Driven by the servo motor and the gear transmission structure, a relative reverse rotational movement is achieved to perform efficient crushing and grinding treatments on the ore.

[0010] Preferably, the coaxial reverse assembly further includes a first bevel gear, a second bevel gear, a third bevel gear and a limit bracket; the first bevel gear is fixedly connected to the outer wall of the connecting shaft, the second bevel gear is fixedly connected to the outer wall of the forward rotating shaft, the third bevel gear is fixedly connected to the outer wall of the reverse rotating shaft, the first bevel gear is meshed with the second bevel gear, the first bevel gear is meshed with the third bevel gear, the upper end of the limit bracket is fixedly connected to the top inside the grinding box, a limit groove adapted to the first bevel gear and the third bevel gear is provided inside the limit bracket, the first bevel gear and the third bevel gear are both rotatably connected in the corresponding limit grooves, the first bevel gear, the second bevel gear and the third bevel gear realize the distribution of power and the conversion of direction, so that the forward rotating shaft and the reverse rotating shaft can rotate in opposite directions, the first bevel gear receives the power of the servo motor through the connecting shaft and transmits it to the second bevel gear and the third bevel gear. Since the first bevel gear is meshed with both the second bevel gear and the third bevel gear and their rotation directions are opposite, the reverse rotation of the forward rotating shaft and the reverse rotating shaft is realized. The limit bracket is used to support the third bevel gear and enable it to rotate in the limit groove provided in the bracket, so as to stably drive the reverse rotating shaft to rotate.

[0011] Preferably, the crushing and grinding assembly includes a first crushing blade and a second crushing blade; the first crushing blade is fixedly connected to the outer wall of the forward rotating shaft and is distributed along the axis direction of the forward rotating shaft, the cutting edge direction of the second crushing blade is opposite to that of the first crushing blade, the second crushing blade is fixedly connected to the outer wall of the reverse rotating shaft and is distributed along the axis direction of the reverse rotating shaft. The first crushing blade is the main crushing tool for initially crushing the ore. When the forward rotating shaft rotates, the first crushing blade will rotate accordingly, and its sharp cutting edge will cut and crush the ore and decompose it into smaller particles. The second crushing blade works in cooperation with the first crushing blade to further crush the ore, which means that when the two rotating shafts rotate, the first crushing blade and the second crushing blade will cut the ore in opposite directions, thereby generating a strong shearing force, so that the ore can be crushed more effectively and further refined.

[0012] Preferably, the crushing and grinding assembly further includes a connecting rod, a sleeve and grinding teeth. The connecting rod is fixedly connected to the lower end of the forward rotating shaft. There are two sleeves rotatably connected to both ends of the connecting rod. Grinding teeth for grinding the ore are provided on the outer wall of each sleeve. The connecting rod connects the forward rotating shaft and the grinding part to transmit the rotational power. The connecting rod is a strong rod-shaped component. The sleeve provides an installation platform for the grinding teeth and allows them to rotate to a certain extent relative to the connecting rod during the grinding process. The grinding teeth further grind and refine the ore. The grinding teeth are provided on the outer wall of the sleeve and they have sharp tooth tips to effectively grind the ore during rotation.

[0013] Preferably, the dust removal assembly includes an air extraction pump, an absorption tank, a T-shaped air pipe, and a dust suction hood; the air extraction pump is installed at the upper end of the bracket built in the rear end of the grinding box, the absorption tank is installed at the upper end of the bracket built in the rear end of the grinding box and is located below the air extraction pump, the air inlet port of the air extraction pump is connected to the air outlet port of the T-shaped air pipe, the T-shaped air pipe is installed in the grinding box and a dust suction hood is provided on the outer wall of the T-shaped air pipe. The air extraction pump provides power to extract the dust and waste gas generated during the grinding process from the grinding box and transports them through a pipeline to the absorption tank for treatment. Water source is contained in the absorption tank, which simultaneously receives and treats the dust and waste gas extracted from the grinding box. The T-shaped air pipe, as the pipeline connecting the air extraction pump and the dust suction hood, guides the dust and waste gas generated in the grinding box to the air extraction pump for extraction, and the dust suction hood absorbs the dust and waste gas generated during the grinding process.

[0014] Advantages of the present utility model:

[0015] 1. Through the collaborative work among the coaxial reverse rotation assembly, the crushing and grinding assembly, and the dust removal assembly, an integrated process from ore crushing to fine grinding and then to efficient dust removal is achieved. The combined operation of the three not only ensures the stability during the crushing and grinding processes, but also improves the crushing effect through reverse rotation. The dust removal assembly removes the dust generated during the operation throughout the process, maintaining the cleanliness of the working environment and the health of the operators, and effectively reducing environmental pollution.

[0016] 2. When the two rotating shafts rotate, the first crushing blade and the second crushing blade will cut the ore in opposite directions, generating a strong shearing force, which can more effectively crush the ore and further refine it. Brief Description of the Drawings

[0017] Figure 1 Shown is a three-dimensional structural schematic diagram of the ore grinding equipment with a dust reduction structure of the present utility model;

[0018] Figure 2 Shown is a front view schematic diagram of the ore grinding equipment with a dust reduction structure of the present utility model;

[0019] Figure 3 Shown is a top view schematic diagram of the ore grinding equipment with a dust reduction structure of the present utility model;

[0020] Figure 4 Shown is a three-dimensional structural schematic diagram of the coaxial reverse rotation assembly of the ore grinding equipment with a dust reduction structure of the present utility model;

[0021] Figure 5 Shown is a three-dimensional structural schematic diagram of the crushing and grinding assembly of the ore grinding equipment with a dust reduction structure of the present utility model;

[0022] Figure 6The figure shows a three-dimensional structural schematic diagram of the dust removal component of the ore grinding equipment with a dust reduction structure of the present utility model.

[0023] Explanation of reference numerals: 1, bottom plate; 2, support feet; 3, grinding box; 4, feed pipe; 5, discharge pipe; 601, servo motor; 602, coupling; 603, connecting shaft; 604, rotating support seat; 605, forward rotating shaft; 606, reverse rotating shaft; 607, first bevel gear; 608, second bevel gear; 609, third bevel gear; 610, limit bracket; 701, first crushing blade; 702, second crushing blade; 703, connecting rod; 704, sleeve; 705, grinding teeth; 801, air extraction pump; 802, absorption box; 803, T-shaped air pipe; 804, dust suction hood. Detailed implementation manners

[0024] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] Please refer to Figures 1 - 3 , the present utility model provides an embodiment: an ore grinding equipment with a dust reduction structure, including a bottom plate 1, support feet 2, a grinding box 3, a feed pipe 4, a discharge pipe 5, a coaxial reverse rotation assembly, a crushing and grinding assembly, and a dust removal assembly; four groups of support feet 2 for support are fixedly connected to the lower end of the bottom plate 1, a grinding box 3 is installed on the upper end of the bottom plate 1, the feed pipe 4 is arranged at the left end of the grinding box 3, the discharge pipe 5 is arranged at the right end of the grinding box 3, the coaxial reverse rotation assembly is installed in the grinding box 3 and a gear transmission structure is arranged in the coaxial reverse rotation assembly, the crushing and grinding assembly is installed in the coaxial reverse rotation assembly, the dust removal assembly is installed at the rear end of the grinding box 3, the bottom plate 1 serves as the support foundation of the entire equipment, four groups of support feet 2 are fixedly connected to the lower end of the bottom plate 1, these support feet 2 are made of durable materials such as steel, and the equipment is firmly fixed on the ground through the support feet 2, the grinding box 3 accommodates the crushing and grinding assembly and the coaxial reverse rotation assembly and is the main working area for ore grinding, the grinding box 3 is made of a strong metal material such as stainless steel to withstand the impact and wear during the grinding process, the feed pipe 4 feeds the ore raw materials to be ground into the grinding box 3, the discharge pipe 5 discharges the ground ore powder out of the grinding box 3, the coaxial reverse rotation assembly drives the crushing and grinding assembly to rotate forward and backward to improve the grinding efficiency and crushing effect, a gear transmission structure is arranged inside the coaxial reverse rotation assembly, and through the meshing and transmission of the gears, the first crushing blade 701 and the second crushing blade 702 rotate synchronously and reversely, the crushing and grinding assembly performs crushing and grinding treatment on the ore entering the grinding box 3, and the dust removal assembly collects and treats the dust generated during the grinding process to prevent dust leakage.

[0026] Please refer to Figure 4, in this embodiment, the coaxial reverse assembly includes a servo motor 601, a coupling 602, a connecting shaft 603 and a rotating support base 604; a support plate is fixedly connected to the right inner wall of the grinding box 3, and a servo motor 601 is installed at the upper end of the support plate. A coupling 602 is installed at the right end of the connecting shaft 603 and is connected to the output shaft of the servo motor 601 through the coupling 602. The rotating support base 604 is fixedly connected to the top inside the grinding box 3. The coaxial reverse assembly further includes a forward rotating shaft 605 and a reverse rotating shaft 606; the upper end of the forward rotating shaft 605 is rotatably connected inside the rotating support base 604. The reverse rotating shaft 606 is shorter than the forward rotating shaft 605 and is sleeved on the forward rotating shaft 605. The coaxial reverse assembly further includes a first bevel gear 607, a second bevel gear 608, a third bevel gear 609 and a limit bracket 610;The first bevel gear 607 is fixedly connected to the outer wall of the connecting shaft 603, the second bevel gear 608 is fixedly connected to the outer wall of the forward rotating shaft 605, and the third bevel gear 609 is fixedly connected to the outer wall of the reverse rotating shaft 606. The first bevel gear 607 is meshed with the second bevel gear 608, and the first bevel gear 607 is meshed with the third bevel gear 609. The upper end of the limit bracket 610 is fixedly connected to the top inside the grinding box 3. A limit groove adapted to the first bevel gear 607 and the third bevel gear 609 is provided inside the limit bracket 610. Both the first bevel gear 607 and the third bevel gear 609 are rotatably connected in the corresponding limit grooves. The servo motor 601 serves as a power source to provide stable rotational power for the coaxial reverse rotation assembly. It has precise speed control capabilities and can adjust the rotational speed and direction according to needs. The coupling 602 connects the output shaft of the servo motor 601 and the connecting shaft 603 to ensure power transmission between the two. The connecting shaft 603 transmits the power of the servo motor 601 to the gear transmission part of the coaxial reverse rotation assembly, thereby driving the operation of the entire coaxial reverse rotation assembly. The rotating support base 604 provides stable support and a rotating platform for the forward rotating shaft 605. It is internally provided with components such as bearings to reduce friction and wear during the rotation of the forward rotating shaft 605. The forward rotating shaft 605 and the reverse rotating shaft 606 achieve the crushing and grinding of ores through reverse rotation. The forward rotating shaft 605 is longer, and the reverse rotating shaft 606 is shorter. The reverse rotating shaft 606 is sleeved on the outer wall of the forward rotating shaft 605 but rotates in the opposite direction. Driven by the servo motor 601 and the gear transmission structure, a relative reverse rotational movement is achieved to perform efficient crushing and grinding treatment on the ores. The first bevel gear 607, the second bevel gear 608, and the third bevel gear 609 achieve power distribution and direction conversion, enabling the forward rotating shaft 605 and the reverse rotating shaft 606 to rotate in opposite directions. The first bevel gear 607 receives the power of the servo motor 601 through the connecting shaft 603 and transmits it to the second bevel gear 608 and the third bevel gear 609. Since the first bevel gear 607 is simultaneously meshed with the second bevel gear 608 and the third bevel gear 609, and their rotation directions are opposite, the reverse rotation of the forward rotating shaft 605 and the reverse rotating shaft 606 is achieved. The limit bracket 610 is used to support the third bevel gear 609 and enable it to rotate in the limit groove provided in the bracket, thereby stably driving the reverse rotating shaft 606 to rotate.;

[0027] Please refer to Figures 5 - 6, in this embodiment, the crushing and grinding assembly includes a first crushing blade 701 and a second crushing blade 702; the first crushing blade 701 is fixedly connected to the outer wall of the forward rotating shaft 605 and is distributed along the axial direction of the forward rotating shaft 605. The cutting edge direction of the second crushing blade 702 is opposite to that of the first crushing blade 701. The second crushing blade 702 is fixedly connected to the outer wall of the reverse rotating shaft 606 and is distributed along the axial direction of the reverse rotating shaft 606. The crushing and grinding assembly further includes a connecting rod 703, a sleeve 704 and grinding teeth 705. The connecting rod 703 is fixedly connected to the lower end of the forward rotating shaft 605. There are two sleeves 704 which are rotatably connected to both ends of the connecting rod 703. The outer wall of each sleeve 704 is provided with grinding teeth 705 for grinding the ore. The first crushing blade 701 serves as the main crushing tool for initially crushing the ore. When the forward rotating shaft 605 rotates, the first crushing blade 701 will rotate accordingly. Its sharp cutting edge will cut and crush the ore, breaking it into smaller particles. The second crushing blade 702 works in cooperation with the first crushing blade 701 to further crush the ore. This means that when the two rotating shafts rotate, the first crushing blade 701 and the second crushing blade 702 will cut the ore in opposite directions, thus generating a strong shearing force, which can more effectively crush the ore and further refine it. The connecting rod 703 connects the forward rotating shaft 605 and the grinding part, transmitting the rotational power. The connecting rod 703 is a strong rod-shaped component. The sleeve 704 provides an installation platform for the grinding teeth 705 and allows them to rotate to a certain extent relative to the connecting rod 703 during the grinding process. The grinding teeth 705 further grind and refine the ore. The grinding teeth 705 are arranged on the outer wall of the sleeve 704. They have sharp tooth tips to effectively grind the ore during rotation. The dust removal assembly includes an air extraction pump 801, an absorption box 802, a T-shaped air pipe 803 and a dust suction hood 804; the air extraction pump 801 is installed at the upper end of the bracket built in the rear end of the grinding box 3. The absorption box 802 is installed at the upper end of the bracket built in the rear end of the grinding box 3 and is located below the air extraction pump 801. The intake port of the air extraction pump 801 is connected to the outlet port of the T-shaped air pipe 803. The T-shaped air pipe 803 is installed inside the grinding box and the outer wall of the T-shaped air pipe 803 is provided with a dust suction hood 804. The air extraction pump 801 provides power to extract the dust and waste gas generated during the grinding process from the grinding box 3 and transports them through the pipeline to the absorption box 802 for treatment. The absorption box 802 contains water and simultaneously receives and treats the dust and waste gas extracted from the grinding box 3. The T-shaped air pipe 803, as the pipeline connecting the air extraction pump 801 and the dust suction hood 804, guides the dust and waste gas generated in the grinding box 3 to the air extraction pump 801 for extraction. The dust suction hood 804 absorbs the dust and waste gas generated during the grinding process.

[0028] In the operation process, the staff first injects the ore raw material into the grinding box 3 through the feed pipe 4, and then starts the servo motor 601 and the vacuum pump 801. The servo motor 601 then drives the connecting shaft 603 to rotate. This rotational power is transmitted through the No. 1 bevel gear 607, and through the meshing action of the No. 2 bevel gear 608 and the No. 3 bevel gear 609, the forward shaft 605 and the reverse shaft 606 are caused to rotate synchronously in opposite directions. This reverse rotation mechanism drives the No. 1 crushing blade 701 and the No. 2 crushing blade 702 to efficiently crush the input ore raw material;

[0029] The crushed ore particles naturally fall to the bottom of the grinding box 3. At this time, the continuous rotation of the forward shaft 605 not only maintains the crushing action, but also drives the rotation of the connecting rod 703, thereby causing the grinding teeth 705 on the outer wall of the sleeve 704 to finely grind the ore to ensure that the ore reaches the expected particle size requirement and completes the grinding process;

[0030] At the same time, the vacuum pump 801, with the assistance of the dust hood 804, continuously sucks in the dust generated during the grinding process and transports it to the absorption box 802 through the pipe system. In the absorption box 802, the dust is effectively absorbed by a special water source, thereby maintaining the cleanliness of the working environment and the health of the operators.

[0031] Through the above steps, the integrated process of ore crushing, fine grinding and efficient dust removal is realized through the coordinated work of the coaxial reversing component, the crushing and grinding component and the dust removal component. The joint operation of the three not only ensures the stability of the crushing and grinding process, but also improves the crushing effect through reverse rotation. The dust removal component removes the dust generated during the operation, maintains the cleanliness of the working environment and the health of the operators, effectively reduces environmental pollution, and solves the problem that the ore grinding equipment cannot handle the dust generated by grinding in time during operation, thereby causing environmental pollution.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An ore grinding device with a dust reduction structure, comprising a bottom plate (1), support feet (2), a grinding box (3), a feed pipe (4) and a discharge pipe (5); characterized in that: It also includes a coaxial reverse assembly, a crushing and grinding assembly, and a dust removal assembly; four supporting feet (2) for support are fixedly connected to the lower end of the bottom plate (1), a grinding box (3) is installed on the upper end of the bottom plate (1), a feed pipe (4) is arranged at the left end of the grinding box (3), a discharge pipe (5) is arranged at the right end of the grinding box (3), the coaxial reverse assembly is installed in the grinding box (3) and a gear transmission structure is arranged in the coaxial reverse assembly, the crushing and grinding assembly is installed in the coaxial reverse assembly, and the dust removal assembly is installed at the rear end of the grinding box (3).

2. The ore grinding equipment with a dust reduction structure according to claim 1, characterized in that: The coaxial reverse assembly includes a servo motor (601), a coupling (602), a connecting shaft (603), and a rotating support base (604); a support plate is fixedly connected to the right inner wall of the grinding box (3), a servo motor (601) is installed on the upper end of the support plate, a coupling (602) is installed at the right end of the connecting shaft (603) and is connected to the output shaft of the servo motor (601) through the coupling (602), and the rotating support base (604) is fixedly connected to the top inside the grinding box (3).

3. The ore grinding equipment with a dust reduction structure according to claim 2, characterized in that: The coaxial reverse assembly further includes a forward rotating shaft (605) and a reverse rotating shaft (606); the upper end of the forward rotating shaft (605) is rotatably connected inside the rotating support base (604), the reverse rotating shaft (606) is shorter than the forward rotating shaft (605) and is sleeved on the forward rotating shaft (605).

4. The ore grinding equipment with a dust reduction structure according to claim 3, wherein: The coaxial reverse assembly also includes a first bevel gear (607), a second bevel gear (608), a third bevel gear (609), and a limit bracket (610); the first bevel gear (607) is fixedly connected to the outer wall of the connecting shaft (603), the second bevel gear (608) is fixedly connected to the outer wall of the forward rotating shaft (605), the third bevel gear (609) is fixedly connected to the outer wall of the reverse rotating shaft (606), the first bevel gear (607) is meshed with the second bevel gear (608), the first bevel gear (607) is meshed with the third bevel gear (609), the upper end of the limit bracket (610) is fixedly connected to the top inside the grinding box (3), a limit groove adapted to the first bevel gear (607) and the third bevel gear (609) is arranged inside the limit bracket (610), and the first bevel gear (607) and the third bevel gear (609) are both rotatably connected in the corresponding limit grooves.

5. The ore grinding equipment with a dust reduction structure according to claim 4, characterized in that: The crushing and grinding assembly includes a first crushing blade (701) and a second crushing blade (702); the first crushing blade (701) is fixedly connected to the outer wall of the forward rotating shaft (605) and is distributed along the axial direction of the forward rotating shaft (605), the cutting edge direction of the second crushing blade (702) is opposite to that of the first crushing blade (701), and the second crushing blade (702) is fixedly connected to the outer wall of the reverse rotating shaft (606) and is distributed along the axial direction of the reverse rotating shaft (606).

6. The ore grinding equipment with a dust reduction structure according to claim 5, characterized in that: The crushing and grinding assembly further includes a connecting rod (703), a sleeve (704) and grinding teeth (705). The connecting rod (703) is fixedly connected to the lower end of the forward rotating shaft (605). There are two sleeves (704) which are rotatably connected to both ends of the connecting rod (703). The outer wall of each sleeve (704) is provided with grinding teeth (705) for grinding the ore.

7. The ore grinding equipment with a dust reduction structure according to claim 6, characterized in that: The dust removal assembly includes an air extraction pump (801), an absorption box (802), a T-shaped air pipe (803) and a dust suction hood (804). The air extraction pump (801) is installed at the upper end of the bracket built in the rear end of the grinding box (3). The absorption box (802) is installed at the upper end of the bracket built in the rear end of the grinding box (3) and is located below the air extraction pump (801). The intake port of the air extraction pump (801) is connected to the outlet port of the T-shaped air pipe (803). The T-shaped air pipe (803) is installed inside the grinding box and a dust suction hood (804) is provided on the outer wall of the T-shaped air pipe (803).

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