Aluminum oxide ceramic ball milling device

Abstract

The utility model relates to the technical field of aluminum oxide ceramic production, in particular to an aluminum oxide ceramic ball milling device, a control box is arranged outside a supporting frame on the left side, a feeding pipe seat is arranged outside a ball milling box, and materials are fed into the ball milling box through the feeding pipe seat; a transmission shaft and a shaft sleeve extending out of the control box enter the ball grinding box, the transmission shaft is sleeved with the shaft sleeve, the transmission shaft and the shaft sleeve do not rotate along with the shaft sleeve, the far end of the transmission shaft is installed on the inner wall of the right side of the ball grinding box and coaxially rotates with the ball grinding box, and the far end of the shaft sleeve is provided with an inner roller coaxially rotating with the shaft sleeve. A plurality of extending arms distributed in the circumferential direction are arranged on the outer surface of the inner roller, fixed grinding balls are arranged at the tail ends of the extending arms, a plurality of movable grinding balls are placed in the grinding ball box, and when materials are ground through the movable grinding balls, the fixed grinding balls used in cooperation with the movable grinding balls can improve the collision probability between the materials and the grinding balls; therefore, grinding can be accelerated, and the grinding particle size can be further refined.

Description

Technical Field

[0001] The utility model relates to the technical field of alumina ceramic production, in particular to an alumina ceramic ball milling device. Background Art

[0002] An electronic ceramic ball mill is a device specifically designed for grinding electronic ceramic materials. It utilizes grinding media, such as iron balls, inside a cylindrical drum to grind the material. The constant collision between the material and the grinding media reduces the electronic ceramic material to smaller pieces. Once ground, the material is automatically discharged through a sieve. During the grinding process, the particle size of the material cannot be controlled, and some larger particles may be screened out. Therefore, the screened material requires secondary screening, with the larger particles being re-ground in the drum. This reduces grinding efficiency. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an alumina ceramic ball milling device.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] An alumina ceramic ball mill device includes a grinding ball box and support frames on both sides. The grinding ball box is rotatably installed between the support frames through bearing seats at both ends of the grinding ball box. A feed pipe seat is provided on the outside of the grinding ball box, and materials are fed into the grinding ball box through the feed pipe seat. A control box is provided on the outside of the left support frame. The transmission shaft and sleeve extending from the control box both enter the grinding ball box. The sleeve is sleeved on the outside of the transmission shaft and the two do not rotate with it. The distal end of the transmission shaft is installed on the right inner wall of the grinding ball box and rotates coaxially with it. The distal end of the sleeve is provided with an inner roller that rotates coaxially with it. The outer surface of the inner roller is provided with a number of circumferentially distributed extension arms. The ends of the extension arms are provided with fixed grinding balls. A number of movable grinding balls are placed inside the grinding ball box.

[0006] In a preferred technical solution, a bevel gear transmission assembly is provided in the control box, and the bevel gear transmission assembly includes a bevel gear arranged on the top wall and bevel gears arranged on both sides, and the bevel gears on both sides are meshed with the bevel gear on the top wall.

[0007] In a preferred technical solution, a transmission shaft is provided at the center of the bevel gear on the left inner wall, and a shaft sleeve is provided at the center of the bevel gear on the right inner wall.

[0008] In a preferred technical solution, an external mounting frame is provided at the left end of the control box, on which a large gear plate and a small gear plate for maintaining meshing transmission are provided, and the large gear plate and the external mounting frame are provided with a motor for driving the small gear plate to rotate.

[0009] In a preferred technical solution, the right end of the transmission shaft is fixed in the grinding ball box, and the left end of the transmission shaft is inserted into the center of the large gear disk.

[0010] In a preferred technical solution, a fixed bracket is provided inside the grinding ball box near the right end, a turntable bearing is provided at the center of the fixed bracket, and the end of the inner roller away from the sleeve is installed on the turntable bearing.

[0011] The beneficial effects of the utility model are:

[0012] The ball milling device proposed in this solution solves the problem of reduced ball milling efficiency of electronic ceramic materials. When the material is ground using movable grinding balls, the fixed grinding balls used in conjunction can increase the probability of collision between the material and the grinding balls, thereby accelerating the grinding and further refining the grinding particle size. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the internal structure of the grinding ball box proposed by the utility model;

[0014] Figure 2 This is a structural diagram of the control box and inner drum in the assembled state proposed by the present invention;

[0015] Figure 3 This is a structural schematic diagram of the fixing bracket proposed in the utility model.

[0016] In the figure: 1. Grinding ball box; 2. Support frame; 3. Bearing seat; 4. Feed pipe seat; 5. Control box; 6. External mounting frame; 7. Large gear plate; 8. Small gear plate; 9. Motor; 10. Drive shaft; 11. Fixed bracket; 12. Bushing; 13. Inner roller; 14. Extension arm; 15. Fixed grinding ball; 16. Movable grinding ball; 17. Turntable bearing. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In this embodiment, refer to Figure 1-3 An alumina ceramic ball milling device includes a ball box 1 and two support frames 2. The ball box 1 is rotatably mounted between the support frames 2 via bearing blocks 3 at its ends, allowing the ball box 1 to be suspended in the air. A feed pipe holder 4 is provided on the outside of the ball box 1, through which material is fed into the ball box 1. The surface of the ball box 1 is evenly distributed with sieve holes, and a conveyor belt is provided at the bottom of the ball box 1 to transport dropped particles.

[0019] A control box 5 is provided on the outside of the support frame 2 on the left side, and a bevel gear transmission assembly is provided in the control box 5. The bevel gear transmission assembly includes a bevel gear arranged on the top wall and bevel gears arranged on both sides. The bevel gears on both sides are engaged with the bevel gears on the top wall. A transmission shaft 10 is provided at the center of the bevel gear on the left inner wall, and a shaft sleeve 12 is provided at the center of the bevel gear on the right inner wall. The transmission shaft 10 and the shaft sleeve 12 extending from the control box 5 both enter the grinding ball box 1.

[0020] The shaft sleeve 12 is mounted on the outside of the drive shaft 10 and does not rotate with it. The distal end of the drive shaft 10 is mounted on the right inner wall of the ball box 1 and rotates coaxially therewith. To ensure that the material fed from the feed pipe holder 4 enters the ball box 1 smoothly, a conventional rotary feeder can be used for the feed pipe holder 4. This ensures smooth feeding and also prevents material from leaking out when the ball box 1 rotates due to the closed rotor design.

[0021] An inner roller 13 is provided at the distal end of the sleeve 12 and rotates coaxially therewith.

[0022] A fixed bracket 11 is provided near the right end of the grinding ball box 1 . A turntable bearing 17 is provided at the center of the fixed bracket 11 . An end of the inner drum 13 away from the shaft sleeve 12 is mounted on the turntable bearing 17 .

[0023] The outer surface of the inner drum 13 is provided with a plurality of circumferentially distributed extension arms 14 , the ends of the extension arms 14 are provided with fixed grinding balls 15 , and a plurality of movable grinding balls 16 are placed inside the grinding ball box 1 .

[0024] The left end of the control box 5 is provided with an external mounting frame 6, on which a large toothed disc 7 and a small toothed disc 8 for meshing transmission are provided. The large toothed disc 7 and the external mounting frame 6 are provided with a motor 9 for driving the small toothed disc 8 to rotate. The right end of the transmission shaft 10 is fixed in the grinding ball box 1, and the left end of the transmission shaft 10 is inserted into the center of the large toothed disc 7.

[0025] The motor 9 starts, and through the meshing transmission of the large gear plate 7 and the small gear plate 8, it finally drives the transmission shaft 10 to rotate in the control box 5 and the grinding ball box 1:

[0026] The transmission shaft 10 rotates in the control box 5, and the transmission shaft 10 will drive the bevel gear on the left inner wall to rotate synchronously, and drive the bevel gear on the right inner wall to rotate through the bevel gear on the top wall. At this time, the bevel gears on the left and right inner walls will maintain opposite rotation directions.

[0027] The transmission shaft 10 rotates in the grinding ball box 1, which can drive the grinding ball box 1 to rotate synchronously. When the material enters the grinding ball box 1, the movable grinding balls 16 are used to grind the material.

[0028] The bevel gear on the right rotates synchronously with the sleeve 12, and the sleeve 12 rotates synchronously with the inner drum 13. Therefore, the inner drum 13 will maintain an opposite rotation direction to the grinding ball box 1. During the grinding process of the movable grinding balls 16, the material in the grinding ball box 1 frequently contacts the fixed grinding balls 15, thereby accelerating the grinding and further refining the grinding particle size.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An alumina ceramic ball milling device, comprising a grinding ball box (1) and support frames (2) on both sides, wherein the grinding ball box (1) is rotatably mounted between the support frames (2) via bearing seats (3) at both ends thereof, and a feed pipe seat (4) is provided on the outside of the grinding ball box (1), through which materials are fed into the grinding ball box (1), characterized in that: A control box (5) is provided outside the support frame (2) on the left side. A transmission shaft (10) and a sleeve (12) extending from the control box (5) are both inserted into the grinding ball box (1). The sleeve (12) is sleeved outside the transmission shaft (10) and the two do not rotate with it. The distal end of the transmission shaft (10) is mounted on the right inner wall of the grinding ball box (1) and rotates coaxially therewith. The distal end of the sleeve (12) is provided with an inner roller (13) that rotates coaxially therewith. The outer surface of the inner roller (13) is provided with a plurality of circumferentially distributed extension arms (14). The distal ends of the extension arms (14) are provided with fixed grinding balls (15). A plurality of movable grinding balls (16) are placed inside the grinding ball box (1).

2. The alumina ceramic ball milling device according to claim 1, characterized in that: A bevel gear transmission assembly is provided in the control box (5), and the bevel gear transmission assembly comprises a bevel gear provided on the top wall and bevel gears provided on both sides, and the bevel gears on both sides are kept in mesh with the bevel gear on the top wall.

3. The alumina ceramic ball milling device according to claim 2, characterized in that: A transmission shaft (10) is provided at the center of the bevel gear located on the left inner wall, and a shaft sleeve (12) is provided at the center of the bevel gear located on the right inner wall.

4. The alumina ceramic ball milling device according to claim 2, characterized in that: The left end of the control box (5) is provided with an external mounting frame (6), and a large toothed disc (7) and a small toothed disc (8) for maintaining meshing transmission are provided on the external mounting frame (6), and a motor (9) for driving the small toothed disc (8) to rotate is provided on the large toothed disc (7) and the external mounting frame (6).

5. The alumina ceramic ball milling device according to claim 4, characterized in that: The right end of the transmission shaft (10) is fixed in the grinding ball box (1), and the left end of the transmission shaft (10) is plugged into the center of the large toothed disc (7).

6. The alumina ceramic ball milling device according to claim 1, characterized in that: A fixed bracket (11) is provided inside the grinding ball box (1) near the right end, a turntable bearing (17) is provided at the center of the fixed bracket (11), and the end of the inner roller (13) away from the shaft sleeve (12) is mounted on the turntable bearing (17).

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