Ball mill

Abstract

The utility model discloses a ball milling instrument which comprises a frame body, a control screen installed on the outer side of the frame body, a bottom plate installed at the bottom of the frame body, a rotating disc rotatably installed above the bottom plate, a main shaft vertically fixed to the lower end of the rotating disc, the main shaft rotatably installed on the bottom plate, and a plurality of placing cylinders evenly arranged at the position, close to the edge, of the upper end of the rotating disc. A grinding tank is placed in the placing cylinder, and the placing cylinder is rotatably mounted on the turntable; a section of the main shaft between the turntable and the bottom plate is fixedly sleeved with a driving chain wheel; a driven chain wheel is fixed at a position of the rotating shaft of the placing cylinder at the lower end of the turntable; the driving chain wheels are multiple rows of chain wheels, and chain wheels on the driving chain wheels are in transmission with the different driven chain wheels through chains. The driving chain wheel at the bottom of the turntable rotates to drive the grinding tank to rotate and revolve simultaneously, and in addition, the transmission system is symmetrically distributed, so that the rotation is more stable.

Description

Technical Field

[0001] This utility model relates to a ball mill, belonging to the field of ball mill technology. Background Technology

[0002] 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. With their small size, comprehensive functions, and high efficiency, ball mills are ideal for research institutions, universities, and enterprise laboratories to obtain microparticle research samples (up to four samples per experiment). When equipped with a vacuum ball mill jar, samples can be ground under vacuum conditions.

[0003] When grinding materials using a ball mill, the material and grinding balls are placed in a grinding jar, which is mounted on the edge of a turntable and revolves with the turntable. Simultaneously, the grinding jar itself can rotate. However, existing ball mills have the following problems:

[0004] First, the rotation and revolution of the grinding jar require separate power supplies, making the transmission system complex and costly.

[0005] Secondly, due to the asymmetry of the power system, the grinding jar rotates unbalancedly during high-speed rotation, causing the turntable to be subjected to eccentric force, and the installation and fixing of the grinding jar is more troublesome.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] To address the shortcomings of the prior art, this utility model provides a ball mill that can simultaneously drive the grinding jar to rotate on its own axis and revolve around the sun by rotating the drive sprocket at the bottom of the turntable. In addition, the transmission system is symmetrically distributed, making the rotation more stable.

[0008] To solve the above technical problems, the present invention adopts the following technical solution:

[0009] A ball mill includes a frame, a control panel mounted on the outside of the frame, a base plate mounted on the bottom of the frame, a turntable rotatably mounted on the top of the base plate, a main shaft vertically fixed at the lower end of the turntable, the main shaft rotatably mounted on the base plate, and a plurality of placement cylinders evenly arranged near the edge of the upper end of the turntable, each placement cylinder containing a grinding jar, the placement cylinders being rotatably mounted on the turntable.

[0010] A drive sprocket is fixedly fitted on a section of the main shaft located between the turntable and the base plate, and a driven sprocket is fixedly fitted on the shaft of the placement cylinder at the lower end of the turntable.

[0011] The driving sprocket is a multi-row sprocket, and the sprockets on the driving sprocket are driven by different passive sprockets via chains.

[0012] Furthermore, there are four placement cylinders, and the drive sprocket has two rows of sprockets. The sprocket on the upper side of the drive sprocket drives the passive sprockets corresponding to the lower ends of two adjacent placement cylinders, and the sprocket on the lower side of the drive sprocket drives the passive sprockets corresponding to the lower ends of the other two adjacent placement cylinders.

[0013] Furthermore, there are three placement cylinders (not shown in the figure), and the drive sprocket has three rows of sprockets. One sprocket of the drive sprocket is connected to the passive sprocket at the lower end of one placement cylinder through chain drive.

[0014] Furthermore, a drive motor is also installed on one side of the base plate, and a drive pulley is fixed on the drive shaft at the lower end of the drive motor. A driven pulley is fixed at the lower end of the main shaft at the base plate, and the drive pulley and the driven pulley are driven by a belt.

[0015] Furthermore, a bearing seat is fixedly installed on the base plate by bolts, and the shaft at the lower end of the placement cylinder is rotatably mounted on the bearing seat.

[0016] Furthermore, the upper end of the placement cylinder has multiple slots on the left and right sides in pairs. A pressure plate is inserted into a pair of opposite slots. A screw is threadedly installed in the middle of the pressure plate. A clamping nut is threadedly installed on the upper part of the pressure plate.

[0017] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0018] There are four placement cylinders, and the drive sprocket has two rows of sprockets. The sprocket on the upper side of the drive sprocket drives the passive sprockets corresponding to the lower ends of two adjacent placement cylinders, and the sprocket on the lower side of the drive sprocket drives the passive sprockets corresponding to the lower ends of the other two adjacent placement cylinders. In this way, the drive sprocket can drive the four placement cylinders to rotate simultaneously. The two adjacent placement cylinders on the turntable are symmetrical about the center of the turntable with respect to the other two placement cylinders, making the rotation more stable.

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal lower end structure of this utility model;

[0023] Figure 4 This is a front view of the interior of this utility model;

[0024] Figure 5 yes Figure 4 Sectional view along AA;

[0025] Figure 6 This is a schematic diagram of the installation of the placement cylinder and the grinding jar in this utility model.

[0026] In the picture,

[0027] 1-Frame, 2-Base plate, 3-Drive motor, 4-Drive pulley, 5-Driven pulley, 6-Turntable, 7-Bearing seat, 8-Drive sprocket, 9-Driven sprocket, 10-Placement cylinder, 11-Grinding jar, 12-Pressure plate, 13-Pressure nut, 14-Screw. Detailed Implementation

[0028] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0029] like Figures 1-5 As shown, this utility model provides a ball mill, including a frame 1, a control panel installed on the outside of the frame 1, a base plate 2 installed at the bottom of the frame 1, a turntable 6 rotatably installed on the top of the base plate 2, a main shaft vertically fixed at the lower end of the turntable 6, the main shaft being rotatably installed on the base plate 2, and a plurality of placement cylinders 10 evenly arranged near the edge of the upper end of the turntable 6, each placement cylinder 10 containing a grinding jar 11, the placement cylinder 10 being rotatably installed on the turntable 6;

[0030] The main shaft is fixedly fitted with a drive sprocket 8 at a section between the turntable 6 and the base plate 2, and the shaft of the placement cylinder 10 is fixedly fitted with a driven sprocket 9 at the lower end of the turntable 6.

[0031] The driving sprocket 8 is a multi-row sprocket, and the sprockets on the driving sprocket 8 are respectively connected to different passive sprockets 9 via chain transmission.

[0032] There are four placement cylinders 10. The drive sprocket 8 has two rows of sprockets. The sprocket on the upper side of the drive sprocket 8 drives the passive sprockets 9 corresponding to the lower ends of two adjacent placement cylinders 10. The sprocket on the lower side of the drive sprocket 8 drives the passive sprockets 9 corresponding to the lower ends of the other two adjacent placement cylinders 10. In this way, the drive sprocket 8 can drive the four placement cylinders 10 to rotate simultaneously. The two adjacent placement cylinders 10 on the turntable 6 are symmetrical about the center of the turntable, making the rotation more stable.

[0033] In another embodiment, there are three placement cylinders 10 (not shown in the figure), and the drive sprocket 8 has three rows of sprockets. One sprocket of the drive sprocket 8 is connected to a passive sprocket 9 at the lower end of a placement cylinder 10 via chain drive.

[0034] A drive motor 3 is also installed on one side of the base plate 2. A drive pulley 4 is fixed on the drive shaft at the lower end of the drive motor 3. A driven pulley 5 is fixed at the lower end of the main shaft at the base plate 2. The drive pulley 4 and the driven pulley 5 are driven by a belt.

[0035] A bearing seat 7 is fixedly installed on the base plate 2 by bolts, and the rotating shaft at the lower end of the placement cylinder 10 is rotatably installed on the bearing seat 7, so that the placement cylinder 10 can be more easily installed on the turntable 6.

[0036] like Figure 6 The upper end of the placement cylinder 10 has multiple slots on the left and right sides in pairs. A pressure plate 12 is inserted into a pair of opposite slots. A screw 14 is threadedly installed in the middle of the pressure plate 12. A clamping nut 13 is threadedly installed on the upper side of the pressure plate 12. In use, the grinding jar 11 is placed in the placement cylinder 10, the screw 14 is rotated to make it press against the grinding jar 11, and the screw 14 is locked by the clamping nut 13.

[0037] The specific working principle of this utility model:

[0038] A turntable 6 is rotatably mounted above the base plate 2. In a preferred embodiment, four placement cylinders 10 are rotatably and evenly mounted on the turntable 6. A grinding jar 11 is placed inside each placement cylinder 10. A drive sprocket 8 containing two rows of sprockets is fixedly mounted on the main shaft of the turntable 6. A driven sprocket 9 is fixed at the lower end of the turntable 6, located on the shaft of the placement cylinder 10. The sprocket on the upper side of the drive sprocket 8 drives the driven sprocket 9 corresponding to the lower end of two adjacent placement cylinders 10. The sprocket on the lower side of the drive sprocket 8 drives the driven sprocket 9 corresponding to the lower end of the other two adjacent placement cylinders 10. In this way, the drive sprocket 8 can drive the four placement cylinders 10 to rotate simultaneously. The two adjacent placement cylinders 10 on the turntable 6 are symmetrical about the center of the turntable, making the rotation more stable.

[0039] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A ball mill, characterized in that: Includes a frame (1), a control panel is installed on the outside of the frame (1), a base plate (2) is installed at the bottom of the frame (1), a turntable (6) is rotatably installed on the top of the base plate (2), a main shaft is vertically fixed at the lower end of the turntable (6), the main shaft is rotatably installed on the base plate (2), and multiple placement cylinders (10) are evenly arranged near the edge of the upper end of the turntable (6), a grinding jar (11) is placed inside the placement cylinder (10), and the placement cylinder (10) is rotatably installed on the turntable (6); The main shaft is fixedly fitted with a drive sprocket (8) between the turntable (6) and the base plate (2), and the shaft of the placement cylinder (10) is fixedly fitted with a passive sprocket (9) at the lower end of the turntable (6). The driving sprocket (8) is a multi-row sprocket, and the sprockets on the driving sprocket (8) are driven by different passive sprockets (9) through chains.

2. The ball mill as described in claim 1, characterized in that: There are four placement cylinders (10), and the drive sprocket (8) has two rows of sprockets. The sprocket on the upper side of the drive sprocket (8) drives the passive sprockets (9) corresponding to the lower ends of two adjacent placement cylinders (10), and the sprocket on the lower side of the drive sprocket (8) drives the passive sprockets (9) corresponding to the lower ends of the other two adjacent placement cylinders (10).

3. A ball mill as described in claim 1, characterized in that: There are three placement cylinders (10), and the drive sprocket (8) has three rows of sprockets. One sprocket of the drive sprocket (8) is connected to the passive sprocket (9) at the lower end of one placement cylinder (10) through chain drive.

4. A ball mill as described in claim 2 or 3, characterized in that: A drive motor (3) is also installed on one side of the base plate (2). A drive pulley (4) is fixed on the drive shaft at the lower end of the drive motor (3). A passive pulley (5) is fixed at the lower end of the main shaft on the base plate (2). The drive pulley (4) and the passive pulley (5) are driven by a belt.

5. A ball mill as described in claim 2 or 3, characterized in that: A bearing seat (7) is fixedly installed on the base plate (2) by bolts, and the shaft at the lower end of the placement cylinder (10) is rotatably installed on the bearing seat (7).

6. A ball mill as described in claim 1, characterized in that: The upper end of the placement cylinder (10) has multiple slots on the left and right sides in pairs. A pressure plate (12) is inserted into a pair of opposite slots. A screw (14) is threadedly installed in the middle of the pressure plate (12). A clamping nut (13) is threadedly installed on the upper side of the pressure plate (12) of the screw (14).

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