Grinding device of efficient vertical planetary ball mill

Abstract

The utility model relates to the field of planetary ball mills, and discloses an efficient vertical planetary ball mill grinding device which comprises a shell, a fixing table is fixedly connected to the bottom of the inner wall of the shell, a driving mechanism is arranged at the top of the fixing table, a grinding mechanism is arranged at the top of the fixing table, and the grinding mechanism comprises a rotating disc, a rotating rod and a grinding cylinder. The bottom of the rotating disc is fixedly connected with a rotating shaft, the rotating shaft is rotationally connected to the inner wall of the fixing table, the rotating rod is rotationally connected to the inner wall of the rotating disc, the outer wall of the bottom of the rotating rod is fixedly connected with a gear, and the top of the fixing table is fixedly connected with an inner gear ring. According to the grinding device, the control rod is pulled to drive the pull rope to move the limiting rod to overcome the elastic force of the spring, so that the limiting rod is separated from the interior of the limiting groove, then the grinding cylinder is pulled out upwards, the grinding cylinder can be taken out from the interior of the top plate for material taking and cleaning, the grinding cylinder can be disassembled without screwing a bolt, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of planetary ball mills, and more particularly to a high-efficiency vertical planetary ball mill grinding device. Background Technology

[0002] Planetary ball mills are essential equipment for mixing, fine grinding, small sample preparation, nanomaterial dispersion, new product development, and small-batch production of high-tech materials. They are designed for crushing, grinding, and dispersing powders such as metals, non-metals, organics, and traditional Chinese medicines, and are particularly suitable for laboratory research. Their working principle is to utilize the high-speed tumbling of abrasive and sample within the grinding jar to generate strong shearing, impact, and crushing forces on the material to achieve the purpose of crushing, grinding, dispersing, and emulsifying the material.

[0003] A search revealed Chinese Patent Publication No. CN222384942U, which discloses a planetary ball mill for silicon carbide powder processing. The mill includes a frame, a planetary gear drive mechanism, a base, a grinding cylinder, a transfer frame, a pressing mechanism, and a receiving box. The frame is equipped with the planetary gear drive mechanism, which has multiple bases. Each base has a positioning ring, and a grinding cylinder can be detachably installed inside each positioning ring. The base is equipped with clamping bolts for pressing the grinding cylinder.

[0004] The grinding jar fixing method of the above-mentioned patent relies on bolt locking, which requires special tools and is cumbersome to replace. It is not convenient to replace or remove the grinding jar, which reduces the ease of operation of the planetary ball mill. Therefore, a high-efficiency vertical planetary ball mill grinding device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-efficiency vertical planetary ball mill grinding device, which aims to improve the problem in the prior art that "the grinding jar fixing method relies on bolt locking, and special tools are required for replacement and the operation is cumbersome".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency vertical planetary ball mill grinding device, comprising a shell, a fixed platform fixedly connected to the bottom of the inner wall of the shell, a driving mechanism provided at the top of the fixed platform, a grinding mechanism provided at the top of the fixed platform, the grinding mechanism comprising a turntable, a rotating rod and a grinding cylinder, a rotating shaft fixedly connected to the bottom of the turntable, the rotating shaft being rotatably connected to the inner wall of the fixed platform, the rotating rod being rotatably connected to the inner wall of the turntable, a gear fixedly connected to the bottom outer wall of the rotating rod, an internal gear ring fixedly connected to the top of the fixed platform, the gear meshing with the internal gear ring, a base fixedly connected to the bottom of the grinding cylinder, and an installation mechanism provided inside the base.

[0007] As a further description of the above technical solution:

[0008] The top of the outer casing is hinged with a door.

[0009] As a further description of the above technical solution:

[0010] The drive mechanism includes a stepper motor, which is fixedly connected to the top of the fixed platform, and a pulley is fixedly connected to the bottom of the output shaft of the stepper motor.

[0011] As a further description of the above technical solution:

[0012] The drive mechanism also includes a second pulley, which is fixedly connected to the bottom outer wall of the rotating shaft. The first pulley and the second pulley are connected by a belt drive.

[0013] As a further description of the above technical solution:

[0014] The installation mechanism includes a circular plate and a limiting rod. The circular plate is fixedly connected to the top of the rotating rod, and the limiting rod is slidably connected to the inner wall of the circular plate. The limiting rod is elastically connected to the inner wall of the circular plate by a spring.

[0015] As a further description of the above technical solution:

[0016] The installation mechanism also includes a pull rope, one end of which is fixedly connected to the surface of the limiting rod, and the other end of which is fixedly connected to a control rod, which is slidably connected to the inner wall of the rotating rod.

[0017] As a further description of the above technical solution:

[0018] The base has a limiting groove on its inner wall and a groove on its bottom.

[0019] As a further description of the above technical solution:

[0020] A support column is fixedly connected to the top of the turntable, and a top plate is fixedly connected to the top of the support column.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by pulling the control lever, the moving limit rod will overcome the elastic force of the spring, thereby causing the limit rod to disengage from the limit groove. Then, the grinding cylinder can be pulled out from the inside of the top plate for material removal and cleaning. The grinding cylinder can be disassembled without turning the bolts, which improves work efficiency.

[0023] 2. In this utility model, the grinding cylinder rotates on its own axis while revolving around the sun, forming a planetary motion. The grinding balls inside the grinding cylinder collide with each other during high-speed motion, efficiently grinding the material. The transmission structure inside the drive mechanism is set inside the fixed table, effectively reducing the noise of mechanical transmission. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0025] Figure 2 This is a three-dimensional cross-sectional view of the fixed platform, driving mechanism, and grinding mechanism in this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the grinding mechanism in this utility model;

[0027] Figure 4 This is a three-dimensional exploded cross-sectional view of the rotating rod, gear, base, and mounting mechanism in this utility model.

[0028] Legend:

[0029] 1. Outer shell; 2. Door; 3. Fixing platform; 4. Stepper motor; 5. Belt pulley one; 6. Belt pulley two; 7. Belt; 8. Turntable; 9. Shaft; 10. Rotating rod; 11. Gear; 12. Internal gear ring; 13. Grinding cylinder; 14. Base; 15. Circular plate; 16. Limiting rod; 17. Spring; 18. Pull rope; 19. Control rod; 20. Limiting groove; 21. Groove; 22. Top plate; 23. Support column. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 2 This utility model provides an embodiment of a high-efficiency vertical planetary ball mill grinding device, including a housing 1. A touch screen control panel is set on the front of the housing 1. The operation interface is intuitive and easy to understand, making it convenient for users to set parameters and monitor the working status. A door 2 is hinged to the top of the housing 1. A fixed platform 3 is fixedly connected to the bottom of the inner wall of the housing 1. A drive mechanism is set on the top of the fixed platform 3. The transmission structure inside the drive mechanism is set inside the fixed platform 3, which effectively reduces the noise of mechanical transmission. A grinding mechanism is set on the top of the fixed platform 3.

[0032] Reference Figure 2 - Figure 4 The grinding mechanism includes a turntable 8, a rotating rod 10, and a grinding cylinder 13. The number of grinding cylinders 13 is set to four, which can process four groups of samples at the same time, making it convenient to set up multiple control groups. A rotating shaft 9 is fixedly connected to the bottom of the turntable 8, and the rotating shaft 9 is rotatably connected to the inner wall of the fixed platform 3. The rotating rod 10 is rotatably connected to the inner wall of the turntable 8. A gear 11 is fixedly connected to the bottom outer wall of the rotating rod 10. An internal gear ring 12 is fixedly connected to the top of the fixed platform 3. The gear 11 meshes with the internal gear ring 12. A base 14 is fixedly connected to the bottom of the grinding cylinder 13. The grinding cylinder 13 rotates on its own axis while revolving around the revolution, forming a planetary motion. The grinding balls inside the grinding cylinder 13 collide with each other during the motion, which efficiently grinds the material. An installation mechanism is set inside the base 14.

[0033] Reference Figure 2 , Figure 3 The drive mechanism includes a stepper motor 4, which is fixedly connected to the top of the fixed platform 3. The stepper motor 4 has high control precision, which is beneficial to improving the accuracy of grinding force control. A pulley 5 is fixedly connected to the bottom of the output shaft of the stepper motor 4. The drive mechanism also includes a pulley 6, which is fixedly connected to the bottom outer wall of the rotating shaft 9. The pulley 5 and the pulley 6 are connected by a belt 7. When the stepper motor 4 works, the pulley 5 rotates, which in turn drives the pulley 6 to rotate through the belt 7.

[0034] Reference Figure 4 The installation mechanism includes a circular plate 15 and a limiting rod 16. The circular plate 15 is fixedly connected to the top of the rotating rod 10. The surface of the circular plate 15 is provided with protrusions, and the cross-sectional shape of the protrusions is semi-circular. The limiting rod 16 is slidably connected to the inner wall of the circular plate 15. The limiting rod 16 is elastically connected to the inner wall of the circular plate 15 through a spring 17. The spring 17 applies a spring force to the limiting rod 16 away from the center of the circular plate 15. The installation mechanism also includes a pull rope 18. The pull rope 18 is not elastic. One end of the pull rope 18 is fixedly connected to the surface of the limiting rod 16, and the other end of the pull rope 18 is fixedly connected to a control rod 19. The control rod 19 is slidably connected to the inner wall of the rotating rod 10, and the displacement direction of the control rod 19 is the radial direction of the rotating rod 10.

[0035] Reference Figure 2 - Figure 4 The inner wall of the base 14 is provided with a limiting groove 20 that cooperates with the limiting rod 16. The bottom of the base 14 is provided with a groove 21 that cooperates with the protrusion on the surface of the circular plate 15. The top of the turntable 8 is fixedly connected with a vertically arranged support column 23. The top of the support column 23 is fixedly connected with a top plate 22 for improving the stability of the grinding cylinder 13 movement, which helps the grinding cylinder 13 maintain balance when rotating.

[0036] Working principle: In use, first open the door 2 and put the material to be ground into the grinding cylinder 13. Then start the stepper motor 4. The output shaft of the stepper motor 4 drives the pulley 5 to rotate. Since the pulley 5 and the second pulley 6 are connected by the belt 7, the second pulley 6 will also rotate. The rotation of the second pulley 6 drives the rotating shaft 9, which is fixedly connected to it, to rotate, thereby causing the turntable 8 to start rotating.

[0037] As the turntable 8 rotates, the rotating rod 10 on its inner wall is fixedly connected to the bottom outer wall of the gear 11, and the gear 11 meshes with the internal gear ring 12 fixedly connected to the top of the fixed platform 3. Therefore, the rotating rod 10 will rotate in the opposite direction to the turntable 8 under the drive of the turntable 8's rotation. This design achieves the effect of planetary motion, that is, the grinding cylinder 13 both revolves with the turntable 8 and rotates on its own axis through the rotating rod 10, which greatly improves the grinding efficiency and uniformity.

[0038] When it is necessary to replace or remove the grinding cylinder 13, by pulling the control lever 19, the control lever 19 will drive the pull rope 18 to move. The other end of the pull rope 18 is fixedly connected to the surface of the limiting rod 16. Therefore, under the pull of the pull rope 18, the limiting rod 16 will overcome the elastic force of the spring 17 and completely enter the interior of the circular plate 15, thereby causing the limiting rod 16 to disengage from the limiting groove 20. The base 14 of the grinding cylinder 13 is no longer restricted by the limiting rod 16. Then, rotate the base 14 at the bottom of the grinding cylinder 13 so that the protrusions and grooves 21 on the surface of the circular plate 15 correspond to each other. Then, pull the grinding cylinder 13 upward and it can be taken out from the interior of the top plate 22 for material removal and cleaning.

[0039] 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 high efficiency vertical planetary ball mill grinding device comprising a housing (1), characterized in that: The inner wall bottom of the shell (1) is fixedly connected with a fixed table (3), the top of the fixed table (3) is provided with a driving mechanism, the top of the fixed table (3) is provided with a grinding mechanism, the grinding mechanism comprises a rotating disc (8), a rotating rod (10) and a grinding cylinder (13), the bottom of the rotating disc (8) is fixedly connected with a rotating shaft (9), the rotating shaft (9) is rotatably connected on the inner wall of the fixed table (3), the rotating rod (10) is rotatably connected on the inner wall of the rotating disc (8), the bottom outer wall of the rotating rod (10) is fixedly connected with a gear (11), the top of the fixed table (3) is fixedly connected with an inner gear ring (12), the gear (11) is engaged with the inner gear ring (12), the bottom of the grinding cylinder (13) is fixedly connected with a base (14), and the inside of the base (14) is provided with a mounting mechanism.

2. A high efficiency vertical planetary ball mill grinding device according to claim 1, characterized in that: The top of the shell (1) is hingedly connected with a box door (2).

3. A high efficiency vertical planetary ball mill grinding device as claimed in claim 1 wherein: The driving mechanism comprises a stepping motor (4), the stepping motor (4) is fixedly connected on the top of the fixed table (3), and the output shaft bottom of the stepping motor (4) is fixedly connected with a belt pulley one (5).

4. A high efficiency vertical planetary ball mill grinding device as claimed in claim 3, wherein: The driving mechanism further comprises a belt pulley two (6), the belt pulley two (6) is fixedly connected on the bottom outer wall of the rotating shaft (9), and the belt pulley one (5) and the belt pulley two (6) are drivingly connected through a belt (7).

5. A high efficiency vertical planetary ball mill grinding device as claimed in claim 1, wherein: The mounting mechanism comprises a circular plate (15) and a limiting rod (16), the circular plate (15) is fixedly connected on the top of the rotating rod (10), the limiting rod (16) is slidingly connected on the inner wall of the circular plate (15), and the limiting rod (16) is elastically connected with the inner wall of the circular plate (15) through a spring (17).

6. A high efficiency vertical planetary ball mill grinding device as claimed in claim 1, wherein: The mounting mechanism further comprises a pull rope (18), one end of the pull rope (18) is fixedly connected with the surface of the limiting rod (16), the other end of the pull rope (18) is fixedly connected with a control rod (19), and the control rod (19) is slidingly connected on the inner wall of the rotating rod (10).

7. A high efficiency vertical planetary ball mill grinding device as claimed in claim 6 wherein: The inner wall of the base (14) is provided with a limiting groove (20), and the bottom of the base (14) is provided with a groove (21).

8. A high efficiency vertical planetary ball mill grinding device as claimed in claim 1 wherein: The top of the rotating disc (8) is fixedly connected with a supporting column (23), and the top of the supporting column (23) is fixedly connected with a top plate (22).

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