Silicon carbide block crushing device for silicon carbide production

Abstract

The utility model relates to the field of silicon carbide production discloses a kind of silicon carbide block crushing device for silicon carbide production, including crusher body, and the inside of the crusher body is provided with crushing device;The crushing device includes body, and the front of the body is provided with control panel.In the utility model, blocky silicon carbide along the guide structure of feed inlet enters the crushing cavity inside the body stably, motor starts high-speed operation as power core, the rotation of main rotating lever synchronously drives plum blossom frame rotation fixedly connected to side surface, in the rotating process can synchronously drive the multiple groups of sub-rotating lever evenly distributed on its frame, so that sub-rotating lever is in the collaborative rotation in the limited track inside the body.The outside of each group of sub-rotating lever is fixedly installed with grinding roller made of wear-resistant material, finally reaches the permeation plate at bottom, along discharge channel orderly flows out from discharge port, since unable to pass through permeation plate, again accept the composite crushing effect of grinding roller and body inner wall.

Description

Technical Field

[0001] This utility model relates to the field of silicon carbide production, and in particular to a silicon carbide block crushing device for silicon carbide production. Background Technology

[0002] Silicon carbide (SiC) is a third-generation wide-bandgap semiconductor material formed by covalent bonding of silicon and carbon. It possesses superior performance far exceeding that of traditional silicon-based materials, along with core characteristics such as high electron mobility, high temperature resistance, and radiation resistance. In the industrial field, SiC devices, with their low conduction losses, high switching frequencies, and strong environmental adaptability, are widely used in power modules for new energy vehicles, photovoltaic inverters, rail transit traction converters, and aerospace electronic equipment, significantly improving equipment energy efficiency, reducing size, and extending service life.

[0003] The silicon carbide block crushing device used in silicon carbide production is a core piece of equipment in the silicon carbide raw material processing stage. It is mainly used to crush large blocks of silicon carbide raw materials after mining or synthesis into fine particles that meet the requirements of subsequent grinding and purification processes. Based on the principles of impact, extrusion, or shear crushing, the device uses a motor to drive the rotor, jaw plates, hammers, or impact plates, among other core working components, to apply force to the high-hardness silicon carbide blocks, causing them to overcome their internal binding forces and break apart.

[0004] In existing silicon carbide production processes, when too much silicon carbide raw material is fed into the equipment at once, a large amount of lumpy material accumulates and clogs the crushing chamber. Due to the feed rate exceeding the equipment's designed processing capacity, the material stays in the chamber for a very short time, and the crushing components can only perform preliminary impact or compression on the material. This directly leads to excessively fast crushing speed and insufficient crushing force, ultimately resulting in a significant reduction in crushing efficiency. The produced silicon carbide particles often contain a large amount of coarse material that exceeds the size limit, making it difficult to meet the strict requirements for raw material particle size in subsequent grinding and purification processes, thus affecting overall production efficiency and product quality. Therefore, a silicon carbide block crushing device for silicon carbide production is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a silicon carbide block crushing device for silicon carbide production. It aims to improve the existing silicon carbide block crushing device for silicon carbide production. When too much silicon carbide raw material is fed into the device at one time, a large amount of blocky material will accumulate and block the crushing chamber. Due to the influence of the feed rate exceeding the equipment's designed processing load, the material stays in the chamber for a very short time. The crushing components can only perform preliminary impact or compression on the material, which directly leads to the problem of excessively fast crushing speed and insufficient crushing force.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a silicon carbide block crushing device for silicon carbide production, comprising a crusher body, wherein a crushing device is provided inside the crusher body; the crushing device includes a machine body, a control panel is provided on the front of the machine body, a feed inlet is fixedly connected to one side of the machine body, a discharge outlet is fixedly connected to the other side of the machine body, a support leg is fixedly connected to the bottom of the machine body, a motor is provided on the side of the machine body, a main rotating rod is fixedly connected to the front of the output shaft of the motor, a spider frame is fixedly connected to the side of the main rotating rod away from the output shaft of the motor, a secondary rotating rod is rotatably connected inside the spider frame, a fixing bolt is threaded inside the spider frame, a grinding roller is fixedly connected to the outer side of the secondary rotating rod, a permeation plate is fixedly connected inside the machine body, and a limiting device is provided inside the feed inlet.

[0007] As a further description of the above technical solution: the limiting device includes a bevel gear one and a rotating rod, a bevel gear two is fixedly connected to the side of the rotating rod, and a material distribution plate is fixedly connected to the outer side of the rotating rod.

[0008] As a further description of the above technical solution: the inside of the permeation plate is provided with multiple through-and-interconnected grooves.

[0009] As a further description of the above technical solution: the discharge port is generally set in a conical shape, and the discharge port is fixedly connected to the side of the permeation plate.

[0010] As a further description of the above technical solution: the bevel gear one and bevel gear two are designed to mesh perpendicularly to each other.

[0011] As a further description of the above technical solution: the material distribution plate is provided in multiple sets, and the multiple sets of material distribution plates are respectively fixedly connected to the outside of the rotating rod.

[0012] As a further description of the above technical solution: the bevel gear is penetrated and fixedly connected to the outside of the main rotating rod.

[0013] As a further description of the above technical solution: the internal part of the auxiliary rotating rod is provided with a threaded groove, and the size of the threaded groove inside the auxiliary rotating rod matches that of the fixing bolt.

[0014] This utility model has the following beneficial effects: 1. In this utility model, blocky silicon carbide smoothly enters the crushing chamber inside the machine body along the guide structure of the feed inlet. The motor, as the power core, starts to operate at high speed. The rotation of the main rotating rod synchronously drives the rotation of the plum blossom frame fixedly connected to the side. During the rotation, it can synchronously drive multiple sets of auxiliary rotating rods evenly distributed on its frame, so that the auxiliary rotating rods rotate collaboratively within the limited track inside the machine body. Each set of auxiliary rotating rods is fixedly installed with a grinding roller made of wear-resistant material on its outer side. Finally, it reaches the permeation plate at the bottom and flows out of the discharge port in an orderly manner along the discharge channel. Since it cannot pass through the permeation plate, it is subjected to the combined crushing action of the grinding roller and the inner wall of the machine body again.

[0015] 2. In this utility model, when adding silicon carbide raw material to the feed inlet of the crusher, the precise control of the feed amount is achieved through the efficient regulation of the material distribution mechanism driven by the motor. Its output shaft forms a rigid transmission with the main rotating rod through a coupling. The main rotating rod passes through and is fixedly connected to the first bevel gear. The two rotate synchronously. The power steering is transmitted through the first bevel gear and the second bevel gear meshing in the vertical direction. Multiple material distribution plates are evenly distributed on the side of the rotating rod. The material distribution plates adopt an inclined angle design. As the rotating rod rotates, the material distribution plates will form a uniform impact and diversion effect on the silicon carbide blocks that continuously enter the feed inlet. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a silicon carbide block crushing device for silicon carbide production proposed in this utility model. Figure 2 This is a three-dimensional side view of a silicon carbide block crushing device for silicon carbide production proposed in this utility model. Figure 3 This is a three-dimensional cross-sectional schematic diagram of a silicon carbide block crushing device for silicon carbide production proposed in this utility model. Figure 4 This is a three-dimensional front view of the silicon carbide block crushing device for silicon carbide production proposed in this utility model.

[0017] Legend: 1. Crusher body; 2. Crushing device; 21. Machine body; 22. Control panel; 23. Feed inlet; 24. Discharge outlet; 25. Support leg; 26. Motor; 27. Main rotating rod; 28. Flower frame; 29. ​​Auxiliary rotating rod; 210. Fixing bolt; 211. Grinding roller; 212. Permeation plate; 3. Limiting device; 31. Bevel gear one; 32. Rotating rod; 33. Bevel gear two; 34. Distributor plate. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-2 This utility model provides an embodiment of a silicon carbide block crushing device for silicon carbide production, comprising a crusher body 1, with a crushing device 2 disposed inside the crusher body 1; the crushing device 2 includes a machine body 21, a control panel 22 disposed on the front of the machine body 21, a feed inlet 23 fixedly connected to one side of the machine body 21, a discharge outlet 24 fixedly connected to the other side of the machine body 21, a support leg 25 fixedly connected to the bottom of the machine body 21, a motor 26 disposed on the side of the machine body 21, a main rotating rod 27 fixedly connected to the front of the output shaft of the motor 26, a pergola 28 fixedly connected to the side of the main rotating rod 27 away from the output shaft of the motor 26, a secondary rotating rod 29 rotatably connected inside the pergola 28, multiple sets of secondary rotating rods 29 rotatably connected inside the pergola 28, and a fixing screw threaded inside the pergola 28. Bolt 210 and auxiliary rotating rod 29 have threaded grooves inside, and the size of the threaded grooves inside the auxiliary rotating rod 29 matches that of the fixing bolt 210. This design allows the auxiliary rotating rod 29 to be threadedly fixed to the perforated frame 28 by the fixing bolt 210. Grinding roller 211 is fixedly connected to the outside of the auxiliary rotating rod 29. Permeation plate 212 is fixedly connected to the inside of the machine body 21. The discharge port 24 is set in a conical shape and is fixedly connected to the side of the permeation plate 212. The conical design allows the crushed silicon carbide passing through the permeation plate 212 to flow directly out of the outlet without remaining inside the machine body 21. Multiple through-through grooves are opened inside the permeation plate 212. The size of the multiple through-through grooves is designed to allow the crushed silicon carbide to pass through. A limiting device 3 is installed inside the feed port 23.

[0020] Reference Figures 3-4 The limiting device 3 includes a bevel gear 31 and a rotating rod 32. The bevel gear 31 is penetrated and fixedly connected to the outside of the main rotating rod 27. This design allows the main rotating rod 27 to rotate when the motor 26 is turned on, driving the bevel gear 31 to rotate. A bevel gear 33 is fixedly connected to the side of the rotating rod 32. The bevel gear 31 and the bevel gear 33 are designed to mesh perpendicularly with each other. This design allows the main rotating rod 27 to rotate by driving the bevel gear 33 to rotate through the bevel gear 31. A distribution plate 34 is fixedly connected to the outside of the rotating rod 32. Multiple distribution plates 34 are provided, and each distribution plate 34 is fixedly connected to the outside of the rotating rod 32. The arrangement of multiple distribution plates 34 allows for better control of the inflow of silicon carbide when the rotating rod 32 rotates.

[0021] Working principle: In silicon carbide crushing operation, after the crusher body 1 is started, the silicon carbide raw material is first fed in an orderly manner through the top feed port 23. The blocky silicon carbide smoothly enters the crushing chamber inside the machine body 21 along the guide structure of the feed port 23. During the feeding process, the reasonable diameter design of the feed port 23 can avoid raw material congestion and ensure that the material enters the crushing area evenly. After the operator inputs the preset crushing parameters through the control panel 22 on the side of the machine body 21, the motor 26 is started. The motor 26, as the power core, starts to operate at high speed. Its output shaft is precisely transmitted to the main rotating rod 27 through the coupling, driving the main rotating rod 27 to rotate stably at the preset speed. The rotation of the main rotating rod 27 synchronously drives the side-fixed plum blossom frame 28 to rotate. The plum blossom frame 28 adopts a multi-support symmetrical structure design. During the rotation, it can synchronously drive multiple sets of auxiliary rotating rods 29 evenly distributed on its frame, so that the auxiliary rotating rods 29 rotate collaboratively within the limited track inside the machine body 21. Each set of auxiliary rotating rods 29 is fixedly equipped with a wear-resistant grinding roller 211. As the auxiliary rotating rods 29 rotate, the grinding roller 211 and the crushing liner on the inner wall of the machine body 21 form a tight fit. Through the combined force of squeezing, shearing and crushing, the silicon carbide blocks entering the crushing chamber are gradually refined and crushed. The crushed silicon carbide particles move towards the bottom of the machine body 21 under the action of gravity and finally reach the bottom permeation plate 212. The permeation plate 212 has interconnected grooves that match the preset discharge particle size. Fine particles with the required particle size can pass through the interconnected grooves smoothly and flow out orderly from the discharge port 24 along the discharge channel to enter the subsequent process. However, for coarse silicon carbide particles with a particle size larger than the diameter of the interconnected grooves, they cannot pass through the permeation plate 212. They are driven by the friction and thrust generated by the rotating grinding rollers 211 and return to the effective crushing area of ​​the crushing chamber to be crushed again by the combined crushing action of the grinding rollers 211 and the inner wall of the machine body 21. This closed-loop design completely avoids the problem of excessive particle size caused by insufficient crushing in a single process, ensuring that every piece of silicon carbide discharged meets the strict requirements for particle size in subsequent processing, effectively solving the pain point of poor crushing effect in traditional crushing equipment.

[0022] When silicon carbide raw material is added to the feed inlet 23 of the crusher, the precise control of the feed amount is achieved through the efficient regulation of the material distribution mechanism driven by the motor 26. After the motor 26 starts, its output shaft forms a rigid transmission with the main rotating rod 27 through a coupling, driving the main rotating rod 27 to rotate stably at a preset speed. The main rotating rod 27 is connected to the first bevel gear 31 through and fixedly connected to it. The two rotate synchronously, and the power is transmitted through the bevel gear 31 and the bevel gear 33 meshing vertically in the vertical direction, converting the horizontal rotational power into the vertical driving force, which in turn drives the rotating rod 32 fixed to the side of the bevel gear 33 to rotate at high speed inside the feed inlet 23. Multiple feed plates 34 are evenly distributed on the side of the rotating rod 32. The feed plates 34 are designed with an inclined angle. As the rotating rod 32 rotates, the feed plates 34 will form a uniform impact and diversion effect on the silicon carbide blocks that continuously enter the feed inlet 23. This not only avoids the accumulation and blockage of raw materials at the feed inlet 23, but also allows for precise control of the amount of material entering the crushing chamber per unit time through the rotation frequency of the feed plates 34. This ensures that the feeding speed matches the crushing load of the equipment, laying the foundation for subsequent efficient crushing and improved crushing uniformity.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A silicon carbide block crushing device for silicon carbide production, comprising a crusher body (1), characterized in that: The crusher body (1) is equipped with a crushing device (2) inside; The crushing device (2) includes a body (21), a control panel (22) is provided on the front of the body (21), a feed inlet (23) is fixedly connected to one side of the body (21), a discharge outlet (24) is fixedly connected to the other side of the body (21), a support leg (25) is fixedly connected to the bottom of the body (21), a motor (26) is provided on the side of the body (21), a main rotating rod (27) is fixedly connected to the front of the output shaft of the motor (26), a flower frame (28) is fixedly connected to the side of the main rotating rod (27) away from the output shaft of the motor (26), a secondary rotating rod (29) is rotatably connected inside the flower frame (28), a fixing bolt (210) is threaded inside the flower frame (28), a grinding roller (211) is fixedly connected to the outside of the secondary rotating rod (29), a permeation plate (212) is fixedly connected inside the body (21), and a limiting device (3) is provided inside the feed inlet (23).

2. The silicon carbide block crushing device for silicon carbide production according to claim 1, characterized in that: The limiting device (3) includes a bevel gear (31) and a rotating rod (32). A bevel gear (33) is fixedly connected to the side of the rotating rod (32), and a material distribution plate (34) is fixedly connected to the outside of the rotating rod (32).

3. The silicon carbide block crushing device for silicon carbide production according to claim 1, characterized in that: The interior of the permeation plate (212) has multiple through-through grooves.

4. The silicon carbide block crushing device for silicon carbide production according to claim 1, characterized in that: The discharge port (24) is generally cone-shaped, and the discharge port (24) is fixedly connected to the side of the permeation plate (212).

5. A silicon carbide block crushing device for silicon carbide production according to claim 2, characterized in that: The bevel gear one (31) and bevel gear two (33) are designed to mesh perpendicularly to each other.

6. The silicon carbide block crushing device for silicon carbide production according to claim 2, characterized in that: The material distribution plate (34) is provided in multiple sets, and the multiple sets of material distribution plates (34) are respectively fixedly connected to the outside of the rotating rod (32).

7. The silicon carbide block crushing device for silicon carbide production according to claim 2, characterized in that: The bevel gear (31) is penetrated and fixedly connected to the outside of the main rotating rod (27).

8. The silicon carbide block crushing device for silicon carbide production according to claim 1, characterized in that: The auxiliary rotating rod (29) has a threaded groove inside, and the threaded groove inside the auxiliary rotating rod (29) matches the size of the fixing bolt (210).

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