Rare earth crushing equipment

Abstract

The rare earth crushing equipment comprises a crushing box, a breaking assembly, a grinding mechanism and a driving assembly, the grinding mechanism comprises an inner grinding column and an outer grinding cylinder, the inner grinding column and the outer grinding cylinder are rotatably arranged in the crushing box, and the breaking assembly comprises a knocking hammer, a storage cylinder, a telescopic mechanism and a reciprocating lifting mechanism. The telescopic mechanism is fixedly arranged at the top of the inner grinding column, the storage barrel is fixedly arranged on the telescopic mechanism, a discharging groove is formed in the storage barrel, the reciprocating lifting mechanism extends into the smashing box, the knocking hammer is connected with the reciprocating lifting mechanism, the driving assembly comprises a driving rotating mechanism and a transmission mechanism, and the driving rotating mechanism is arranged on the smashing box. The rotation driving mechanism is connected with the inner grinding column, and the transmission mechanism is connected with the rotation driving mechanism and the outer grinding cylinder. Therefore, blocking caused by large rare earth materials can be effectively avoided, the rare earth materials obtained after preliminary smashing can be ground and smashed step by step, and the particle size uniformity of the smashed rare earth is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of rare earth pulverization, and in particular to a rare earth pulverization device. Background Art

[0002] Rare earth is a general term for 17 metallic chemical elements in the periodic table, including lanthanide elements, scandium and yttrium. Rare earth has unique physical and chemical properties and is indispensable in many fields such as electronics, new energy, environmental protection, aerospace, etc. It is an important basic raw material in modern industry and is widely known as "industrial vitamin".

[0003] In the processing of rare earths, crushing is a key link. Rare earths usually exist in the form of blocks or larger particles. Direct use in subsequent processing techniques (such as smelting, material preparation, etc.) will lead to incomplete reactions and low efficiency. By crushing the rare earth particles, the rare earth can be more fully contacted with other substances in subsequent chemical reactions or physical processing, thereby improving the reaction rate and processing quality.

[0004] In the related art, the roller crusher is one of the more common crushing equipment. Its working principle is to use two relatively rotating rollers to crush the rare earth materials placed between them through extrusion and shear force. However, when faced with larger rare earth blocks, since the feed port and the roller gap of the roller crusher are relatively fixed, large pieces of rare earth are difficult to smoothly enter the effective crushing area between the rollers, and are easily stuck in the feed port or the roller surface, resulting in material blockage and affecting production efficiency. In addition, the roller crusher mainly relies on the extrusion and shearing action of the roller to crush the rare earth, but for large pieces of rare earth, the internal force is uneven, and the part close to the roller surface is subjected to greater pressure and shear force, and is easily crushed into smaller particles, while the material located in the center of the rare earth block is subjected to relatively less force and insufficient crushing, resulting in a wide distribution range of rare earth particle size after crushing, which cannot meet the subsequent processing technology requirements with high requirements for rare earth particle size consistency. Summary of the invention

[0005] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0006] To this end, one purpose of the present application is to provide a rare earth crushing equipment, which can perform preliminary crushing of large rare earth materials by knocking to effectively avoid blockage caused by large rare earth materials, and can also perform step-by-step grinding and crushing of the rare earth materials after preliminary crushing to effectively improve the uniformity of the particle size after rare earth crushing.

[0007] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a rare earth pulverizing equipment, including a pulverizing box, a crushing assembly, a grinding mechanism and a driving assembly, wherein the grinding mechanism includes an inner grinding column and an outer grinding cylinder, the inner grinding column and the outer grinding cylinder are respectively rotatably arranged in the pulverizing box, and the outer grinding cylinder is sleeved on the outer circumference of the inner grinding column; the crushing assembly includes a striking hammer, a storage barrel, a telescopic mechanism and a reciprocating lifting mechanism, wherein the telescopic mechanism is fixedly arranged on the top of the inner grinding column; the storage barrel is fixedly arranged on the telescopic mechanism The retracting mechanism is arranged on the crushing box, and the material storage barrel is provided with a discharge chute; the reciprocating lifting mechanism is arranged on the crushing box, and the reciprocating lifting mechanism extends into the crushing box; the percussion hammer is connected with the reciprocating lifting mechanism, and the percussion hammer is located directly above the material storage barrel; the driving assembly includes a driving mechanism and a transmission mechanism, wherein the driving mechanism is arranged on the crushing box, and the driving mechanism is connected to the inner grinding column; the transmission mechanism is arranged on the crushing box, and the transmission mechanism is respectively connected to the driving mechanism and the outer grinding barrel.

[0008] The rare earth crushing equipment of the embodiment of the present application can perform preliminary crushing of large rare earth materials by knocking to effectively avoid blockage caused by large rare earth materials, and can also perform step-by-step grinding and crushing processing on the rare earth materials after preliminary crushing to effectively improve the particle size uniformity of the rare earth materials after crushing.

[0009] In addition, the rare earth pulverizing equipment proposed in the present application may also have the following additional technical features:

[0010] In one embodiment of the present application, the telescopic mechanism includes a plurality of spring telescopic rods and a dust cover, wherein one end of the plurality of spring telescopic rods is respectively fixedly arranged on the top of the inner grinding column, and the other ends of the plurality of spring telescopic rods are respectively fixedly connected to the bottom of the material storage barrel; the dust cover is sleeved on the material storage barrel, and the inner wall of the dust cover is slidably connected to the outer circumferential surface of the inner grinding column up and down.

[0011] In one embodiment of the present application, grinding teeth are respectively arranged on the outer circumferential surface of the inner grinding column and on the inner wall of the outer grinding cylinder, and the distance between the inner wall of the outer grinding cylinder and the inner grinding column gradually decreases from top to bottom.

[0012] In one embodiment of the present application, the storage barrel is bowl-shaped, an arc-shaped protrusion is provided at the bottom of the inner wall of the storage barrel, and the discharge groove is provided at the bottom of the outer periphery of the storage barrel.

[0013] In one embodiment of the present application, the reciprocating lifting mechanism includes a hydraulic cylinder and a movable frame, wherein the hydraulic cylinder is fixedly arranged on the top of the crushing box, the movable end of the hydraulic cylinder extends into the crushing box and is fixedly connected to the movable frame; the striking hammer is fixedly arranged at the bottom of the movable frame.

[0014] In one embodiment of the present application, the driving mechanism includes a mounting frame, a motor and a driving rod, wherein the mounting frame is fixedly arranged at the bottom of the crushing box; one end of the driving rod is fixedly connected to the center of the bottom of the inner grinding column; the motor is arranged on the mounting frame, and the output shaft of the motor is coaxially connected to the other end of the driving rod through a coupling.

[0015] In an embodiment of the present application, the transmission mechanism includes a driven gear, a chain, a driven rod and a driving gear, wherein the driven rod is rotatably arranged on the crushing box, and the chain is arranged on the driving rod and the driven rod through a sprocket transmission; the driving gear and the driven gear are respectively sleeved on the driven rod and the outer grinding cylinder, and the driving gear is meshed with the driven gear.

[0016] In one embodiment of the present application, the pulverizing box is connected to a feed hopper, and one end of the feed hopper is located inside the pulverizing box and is directly above the storage barrel.

[0017] In one embodiment of the present application, a support frame is provided at the bottom of the crushing box, and the bottom of the crushing box is also connected to a discharge hopper.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 It is a schematic diagram of the front cross-sectional structure of a rare earth pulverizing device according to one embodiment of the present application;

[0021] Figure 2 It is a schematic diagram of a front cross-sectional structure of a rare earth pulverizing device according to another embodiment of the present application;

[0022] Figure 3 It is a front view structural schematic diagram of a rare earth pulverizing device according to one embodiment of the present application;

[0023] Figure 4 It is a schematic structural diagram of a discharge hopper of a rare earth crushing device according to an embodiment of the present application.

[0024] As shown in the figure: 1. Crushing box; 101. Feed hopper; 102. Discharge hopper; 2. Crushing assembly; 21. Percussion hammer; 22. Storage barrel; 221. Discharge chute; 23. Telescopic mechanism; 231. Spring telescopic rod; 232. Dust cover; 24. Reciprocating lifting mechanism; 241. Hydraulic cylinder; 242. Movable frame; 3. Grinding mechanism; 301. Inner grinding column; 302. Outer grinding barrel; 4. Driving assembly; 41. Driving mechanism; 411. Mounting frame; 412. Motor; 413. Driving rod; 42. Transmission mechanism; 421. Driven gear; 422. Chain; 423. Driven rod; 424. Driving gear. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0026] The rare earth crushing equipment according to the embodiment of the present application is described below with reference to the accompanying drawings.

[0027] The rare earth crushing equipment provided in the embodiment of the present application can be used in the production and processing of rare earths to crush rare earth blocks. It can perform preliminary crushing of large rare earth materials by knocking to effectively avoid blockage caused by large rare earth materials, and can also perform step-by-step grinding and crushing of the rare earth materials after preliminary crushing to effectively improve the uniformity of the particle size of the rare earths after crushing.

[0028] like Figure 1-Figure 4 As shown, the rare earth crushing equipment of the embodiment of the present application may include a crushing box 1, a crushing component 2, a grinding mechanism 3 and a driving component 4.

[0029] The grinding mechanism 3 may include an inner grinding column 301 and an outer grinding cylinder 302 , which are rotatably disposed in the grinding box 1 , respectively, and the outer grinding cylinder 302 is sleeved on the outer circumference of the inner grinding column 301 .

[0030] The breaker assembly 2 may include a hammer 21 , a material storage barrel 22 , a telescopic mechanism 23 and a reciprocating lifting mechanism 24 .

[0031] Among them, the telescopic mechanism 23 is fixedly set on the top of the inner grinding column 301, the storage barrel 22 is fixedly set on the telescopic mechanism 23, and a discharge trough 221 is opened on the storage barrel 22, the reciprocating lifting mechanism 24 is set on the crushing box 1, and the reciprocating lifting mechanism 24 extends into the crushing box 1, the knocking hammer 21 is connected to the reciprocating lifting mechanism 24, and the knocking hammer 21 is located directly above the storage barrel 22.

[0032] The driving assembly 4 may include a driving mechanism 41 and a transmission mechanism 42 .

[0033] The driving mechanism 41 is arranged on the crushing box 1 and connected to the inner grinding column 301 . The transmission mechanism 42 is arranged on the crushing box 1 and connected to the driving mechanism 41 and the outer grinding cylinder 302 , respectively.

[0034] It should be noted that the crushing box 1 described in this embodiment is connected to a feed hopper 101, one end of the feed hopper 101 is located in the crushing box 1 and is directly above the storage barrel 22. A support frame is provided at the bottom of the crushing box 1. The bottom of the crushing box 1 is also connected to a discharge hopper 102. The discharge hopper 102 is hollow and disc-shaped, and an annular aggregate trough (not specifically marked in the figure) is provided on the top of the discharge hopper 102. The top and bottom of the annular aggregate trough are open respectively, and the top of the annular aggregate trough is located inside. The bottom of the annular collecting trough between the grinding column 301 and the outer grinding cylinder 302 is connected to the interior of the discharge hopper 102 to collect the rare earth materials dropped between the inner grinding column 301 and the outer grinding cylinder 302, and the bottom of the inner wall of the discharge hopper 102 is provided with an inclined surface to concentrate the collected rare earth materials in one place. In addition, the lowest point of the bottom of the inner wall of the discharge hopper 102 is connected to a discharge pipe (not specifically marked in the figure) to discharge the rare earth materials collected in the discharge hopper 102 out of the discharge hopper 102.

[0035] It should be further explained that grinding teeth are respectively arranged on the outer circumferential surface of the inner grinding column 301 and the inner wall of the outer grinding cylinder 302 described in this embodiment, and the distance between the inner wall of the outer grinding cylinder 302 and the inner grinding column 301 gradually decreases from top to bottom.

[0036] It should also be noted that the storage barrel 22 described in this embodiment is bowl-shaped, an arc-shaped protrusion is provided at the bottom of the inner wall of the storage barrel 22, and the discharge groove 221 is provided at the bottom of the outer periphery of the storage barrel 22.

[0037] As a possible situation, the inner grinding column 301 and the outer grinding cylinder 302 described in this embodiment are rotatably connected to the grinding box 1 through annular slide rails.

[0038] Specifically, during the rare earth production and processing process, when the rare earth blocks need to be crushed, the relevant personnel first put the large pieces of rare earth materials into the crushing box 1 through the feed hopper 101. Since the feed hopper 101 is located at one end of the crushing box 1 directly above the storage barrel 22, the rare earth blocks will fall directly into the bowl-shaped storage barrel 22. The arc-shaped protrusion at the bottom of the inner wall of the storage barrel 22 helps the rare earth blocks to gather and roll therein, so that they are subjected to more uniform force during the subsequent knocking process.

[0039] At this time, the reciprocating lifting mechanism 24 installed on the crushing box 1 starts to work, driving the knocking hammer 21 connected to it and located directly above the storage barrel 22 to do up and down reciprocating motion. The knocking hammer 21 repeatedly knocks the large rare earth materials in the storage barrel 22. Through this knocking method, the large rare earth materials can be initially crushed into smaller pieces, and under the reciprocating telescopic action of the telescopic mechanism 23, the storage barrel 22 can also be vibrated, so that the rare earth materials after preliminary crushing can pass through the discharge chute into the space between the outer grinding cylinder 302 and the inner grinding column 301, avoiding the blockage problem that may be caused by large rare earth pieces directly entering the subsequent grinding link, ensuring the smoothness of the entire crushing process.

[0040] Next, the driving mechanism 41 operates to drive the inner grinding column 301 connected thereto to rotate, and at the same time the transmission mechanism 42 transmits the power of the driving mechanism 41 to the outer grinding cylinder 302, so that the outer grinding cylinder 302 also starts to rotate, and the inner grinding column 301 and the outer grinding cylinder 302 maintain rotation in opposite directions to achieve a better grinding effect. The grinding teeth respectively arranged on the outer circumferential surface of the inner grinding column 301 and the inner wall of the outer grinding cylinder 302, during the relative rotation of the two, strongly grind the rare earth materials that have entered therebetween after preliminary crushing. Moreover, since the distance between the inner wall of the outer grinding cylinder 302 and the inner grinding column 301 gradually decreases from top to bottom, the rare earth materials will be subjected to gradually increasing extrusion and grinding forces during the downward movement, thereby realizing step-by-step grinding and crushing processing, so that the rare earth materials can be crushed more finely and evenly.

[0041] After being fully ground and crushed, the rare earth material gradually moves to the bottom of the crushing box 1 under the action of gravity, and is finally discharged through the discharge hopper 102, completing the entire rare earth crushing process, effectively improving the uniformity of the particle size of the rare earth after crushing, meeting the requirements of rare earth production and processing on crushing quality, and providing a high-quality raw material basis for the subsequent preparation of rare earth products.

[0042] In one embodiment of the present application, Figure 1-Figure 4 As shown, the telescopic mechanism 23 may include a plurality of spring telescopic rods 231 and a dust cover 232 .

[0043] Among them, one end of the multiple spring telescopic rods 231 is fixedly set on the top of the inner grinding column 301, and the other ends of the multiple spring telescopic rods 231 are fixedly connected to the bottom of the storage barrel 22, the dust cover 232 is sleeved on the storage barrel 22, and the inner wall of the dust cover 232 is slidably connected to the outer peripheral surface of the inner grinding column 301 up and down.

[0044] Specifically, under the action of multiple spring telescopic rods 231, when the pressure on the storage barrel 22 changes, the storage barrel 22 is lifted and lowered reciprocatingly under the action of the restoring force of the multiple spring telescopic rods 231, thereby vibrating the rare earth material in the storage barrel 22, so as to transport the rare earth material through the discharge trough 221 to between the outer grinding barrel 302 and the inner grinding column 301 through vibration, thereby preventing the rare earth material from accumulating in the storage barrel 22, wherein the dust cover 232 is used to prevent the rare earth material from entering between the storage barrel 22 and the inner grinding column 301.

[0045] In one embodiment of the present application, Figure 1-Figure 4 As shown, the reciprocating lifting mechanism 24 may include a hydraulic cylinder 241 and a movable frame 242 .

[0046] The hydraulic cylinder 241 is fixedly arranged on the top of the crushing box 1 , the movable end of the hydraulic cylinder 241 extends into the crushing box 1 and is fixedly connected to the movable frame 242 , and the striking hammer 21 is fixedly arranged on the bottom of the movable frame 242 .

[0047] Specifically, the relevant personnel start the hydraulic cylinder 241 to drive the movable frame 242 and the percussion hammer 21 to perform reciprocating lifting and lowering movements, and when the percussion hammer 21 moves downward, the large pieces of rare earth materials in the storage barrel 22 are knocked and crushed for preliminary crushing.

[0048] In one embodiment of the present application, Figure 1-Figure 4 As shown, the driving mechanism 41 may include a mounting bracket 411 , a motor 412 and a driving rod 413 .

[0049] Among them, the mounting frame 411 is fixedly set at the bottom of the crushing box 1, one end of the driving rod 413 is fixedly connected to the center of the bottom of the inner grinding column 301, the motor 412 is set on the mounting frame 411, and the output shaft of the motor 412 is coaxially connected to the other end of the driving rod 413 through a coupling.

[0050] In one embodiment of the present application, the transmission mechanism 42 may include a driven gear 421 , a chain 422 , a driven rod 423 and a driving gear 424 .

[0051] Among them, the driven rod 423 is rotatably set on the crushing box 1, the chain 422 is set on the driving rod 413 and the driven rod 423 through a sprocket transmission, the driving gear 424 and the driven gear 421 are respectively sleeved on the driven rod 423 and the outer grinding cylinder 302, and the driving gear 424 is meshed and connected with the driven gear 421.

[0052] Specifically, when the equipment starts working, the relevant personnel start the motor 412, and the output shaft of the motor 412 starts to rotate. Since the output shaft of the motor 412 is coaxially connected to one end of the driving rod 413 through a coupling, the rotational motion of the motor 412 is directly transmitted to the driving rod 413, so that the driving rod 413 rotates around its axis, and the other end of the driving rod 413 is fixedly connected to the center of the bottom of the inner grinding column 301. Therefore, the rotation of the driving rod 413 drives the inner grinding column 301 to make a circular motion together, thereby realizing the rotation of the inner grinding column 301.

[0053] At the same time, a sprocket is provided on the driving rod 413, and a sprocket transmission connection is formed with the sprocket on the driven rod 423 through the chain 422. When the driving rod 413 rotates, the chain 422 moves accordingly, thereby driving the driven rod 423 to rotate, and the driven rod 423 and the outer grinding cylinder 302 are respectively sleeved with a driving gear 424 and a driven gear 421 that mesh with each other. In this way, the rotation of the driven rod 423 transmits power to the outer grinding cylinder 302 through the meshing transmission of the driving gear 424 and the driven gear 421, driving the outer grinding cylinder 302 to rotate. After the conversion of the gear transmission, the rotation direction of the outer grinding cylinder 302 is opposite to the rotation direction of the inner grinding column 301. This rotation in opposite directions allows the rare earth material between the two to be subjected to more sufficient and efficient grinding, thereby improving the quality and efficiency of rare earth crushing, meeting the requirements for crushing technology in the rare earth processing process, and providing a high-quality raw material basis for the subsequent production of rare earth products.

[0054] In summary, the rare earth crushing equipment of the embodiment of the present application can perform preliminary crushing of large rare earth materials by knocking to effectively avoid blockage caused by large rare earth materials, and can also perform step-by-step grinding and crushing processing on the rare earth materials after preliminary crushing to effectively improve the particle size uniformity of the rare earth materials after crushing.

[0055] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A rare earth pulverizing device, characterized in that: It includes a crushing box, a crushing component, a grinding mechanism and a driving component, wherein: The grinding mechanism comprises an inner grinding column and an outer grinding cylinder, wherein the inner grinding column and the outer grinding cylinder are rotatably arranged in the crushing box, and the outer grinding cylinder is sleeved on the outer circumference of the inner grinding column; The crushing assembly includes a hammer, a storage barrel, a telescopic mechanism and a reciprocating lifting mechanism, wherein: The telescopic mechanism is fixedly arranged on the top of the inner grinding column; The material storage barrel is fixedly arranged on the telescopic mechanism, and a material discharge slot is provided on the material storage barrel; The reciprocating lifting mechanism is arranged on the crushing box, and the reciprocating lifting mechanism extends into the crushing box; The percussion hammer is connected to the reciprocating lifting mechanism, and the percussion hammer is located directly above the storage barrel; The driving assembly includes a driving mechanism and a transmission mechanism, wherein: The driving mechanism is arranged on the crushing box, and the driving mechanism is connected to the inner grinding column; The transmission mechanism is arranged on the crushing box, and the transmission mechanism is connected with the driving mechanism and the outer grinding cylinder respectively.

2. The rare earth pulverizing equipment according to claim 1, characterized in that: The telescopic mechanism includes a plurality of spring telescopic rods and a dust cover, wherein: One end of each of the spring telescopic rods is fixedly disposed on the top of each of the inner grinding columns, and the other ends of each of the spring telescopic rods are fixedly connected to the bottom of each of the storage barrels; The dust cover is sleeved on the material storage barrel, and the inner wall of the dust cover is slidably connected to the outer peripheral surface of the inner grinding column.

3. The rare earth pulverizing equipment according to claim 1, characterized in that: Grinding teeth are respectively arranged on the outer circumferential surface of the inner grinding column and on the inner wall of the outer grinding cylinder, and the distance between the inner wall of the outer grinding cylinder and the inner grinding column gradually decreases from top to bottom.

4. The rare earth pulverizing equipment according to claim 1, characterized in that: The material storage barrel is in a bowl shape, an arc-shaped protrusion is arranged at the bottom of the inner wall of the material storage barrel, and the material discharge groove is arranged at the bottom of the outer periphery of the material storage barrel.

5. The rare earth pulverizing equipment according to claim 1, characterized in that: The reciprocating lifting mechanism includes a hydraulic cylinder and a movable frame, wherein: The hydraulic cylinder is fixedly arranged on the top of the crushing box, and the movable end of the hydraulic cylinder extends into the crushing box and is fixedly connected to the movable frame; The striking hammer is fixedly arranged on the bottom of the movable frame.

6. The rare earth pulverizing equipment according to claim 1, characterized in that: The driving mechanism includes a mounting frame, a motor and a driving rod, wherein: The mounting frame is fixedly arranged at the bottom of the crushing box; One end of the driving rod is fixedly connected to the center of the bottom of the inner grinding column; The motor is arranged on the mounting frame, and the output shaft of the motor is coaxially connected to the other end of the driving rod through a coupling.

7. The rare earth pulverizing equipment according to claim 6, characterized in that: The transmission mechanism includes a driven gear, a chain, a driven rod and a driving gear, wherein: The driven rod is rotatably arranged on the crushing box, and the chain is arranged on the driving rod and the driven rod through a sprocket transmission; The driving gear and the driven gear are respectively sleeved on the driven rod and the outer grinding cylinder, and the driving gear is meshed and connected with the driven gear.

8. The rare earth pulverizing equipment according to claim 4, characterized in that: The crushing box is connected with a feed hopper, and one end of the feed hopper is located in the crushing box and is directly above the storage barrel.

9. The rare earth pulverizing equipment according to claim 1, characterized in that: A support frame is arranged at the bottom of the crushing box, and a discharge hopper is also connected to the bottom of the crushing box.

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