Circular head center transmission ball mill

Abstract

The utility model discloses a round end socket center transmission ball mill which comprises a support, two ends of the top of the support are rotatably connected with a roller through a rotating shaft, the joint of the support and the rotating shaft is provided with a bearing seat, the center in the roller is connected with a straight rod, the surface of the straight rod is annularly connected with a plurality of turning plates, and the surface of the inner wall of the roller is connected with a sound absorption pad. A plurality of conical lining plates are evenly distributed on the surface of the sound absorption pad, energy generated by impact can be absorbed and dispersed through the sound absorption pad, the conical lining plates can make steel balls and materials directly make contact with the inner wall of the roller, and therefore noise and damage to equipment are reduced, and a plurality of arc-shaped protruding blocks are arranged on the surfaces of the conical lining plates. The arc-shaped convex blocks on the surface of the conical lining plate can improve the wear resistance of the conical lining plate, and the contact area with the conical lining plate can be increased through the arc-shaped convex blocks when the steel balls and the materials freely fall under the gravity action, so that collision and friction between the steel balls and the materials are more violent, and the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball mills, and particularly relates to a ball mill with central drive of round head. Background Technique

[0002] A ball mill is a key equipment for crushing materials and then pulverizing them. It is widely used in industries such as cement, silicate products, new building materials, refractories, fertilizers, black and non-ferrous metal beneficiation, and glass ceramics to grind various ores and other grindable materials.

[0003] In the existing ball mill, different specifications of steel balls are installed in the cylinder body. When the cylinder body of the ball mill is driven by a motor to rotate, the centrifugal force generated in the cylinder body takes the steel balls to a certain height and then they fall, hitting and grinding the materials, so that the materials in the cylinder body are crushed and ground into powder. However, when the steel balls fall from a high place under the action of centrifugal force during the operation of the cylinder body of the ball mill, they will contact the inner wall of the cylinder body, resulting in an impact force. Since the cylinder body is made of iron or steel, when the steel balls and the materials contact the inside of the cylinder body, the generated impact force will collide with the cylinder body, generating a large amount of noise, resulting in a poor working environment, and the wear caused by the impact on the cylinder body will be greatly increased, thus reducing the service life of the ball mill. Content of the Utility Model

[0004] The purpose of the utility model is to provide a ball mill with central drive of round head to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a ball mill with central drive of round head, including:

[0006] A bracket, both ends of the top of the bracket are rotatably connected with a drum through a rotating shaft, a bearing seat is arranged at the connection between the bracket and the rotating shaft, a straight rod is connected to the center inside the drum, a plurality of turning plates are annularly connected to the surface of the straight rod, a sound-absorbing pad is connected to the inner wall surface of the drum, a plurality of conical liners for protecting the inner wall of the drum from impact are evenly distributed on the surface of the sound-absorbing pad, and a plurality of arc-shaped convex blocks are arranged on the surface of the conical liner, so that the conical liner increases the contact area between the grinding body and the materials through the arc-shaped convex blocks, improving the grinding efficiency and effect.

[0007] Preferably, a speed reducer is arranged on one side of the bracket, and one of the rotating shafts passes through the bearing seat and is connected to the output shaft of the speed reducer through a coupling.

[0008] Preferably, a motor is arranged at the bottom of the speed reducer and on the surface of the bracket, the output shaft of the motor is connected with a first sprocket, and one end of the speed reducer is connected with a second sprocket.

[0009] Preferably, the first sprocket and the second sprocket are connected by a chain drive.

[0010] Preferably, both ends of the roller are arc-shaped and the surface of the roller is provided with a feed inlet.

[0011] Preferably, the sound-absorbing pad is made of rubber.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] (1) Add the material to be processed into the roller through the feed inlet, and then start the motor. The output shaft of the motor drives the first sprocket to rotate. The first sprocket drives the second sprocket to rotate through the chain, so as to drive the output shaft of the reducer to rotate through the second sprocket, and drive the rotating shaft connected thereto to rotate through the coupling, thereby driving both ends of the roller to rotate inside the roller. When the material inside the roller impacts the inner wall of the roller with the steel balls during rotation, it will contact the sound-absorbing pad made of rubber and the conical lining plate. Therefore, the sound-absorbing pad can absorb and disperse the energy generated by the impact, and the conical lining plate can make the steel balls and the material directly contact the inner wall of the roller, thereby reducing noise and reducing damage to the equipment.

[0014] (2) The centrifugal force generated inside the cylinder by the rotation of the roller brings the steel balls to a certain height and then they fall, exerting a heavy blow and grinding effect on the material. The arc-shaped convex blocks on the surface of the conical lining plate can improve the wear resistance of the conical lining plate, and when the steel balls and the material freely fall under the action of gravity, the contact area with the conical lining plate can be increased through the arc-shaped convex blocks, so that the collision and friction between the steel balls and the material are more intense, improving the grinding efficiency. Moreover, the arc-shaped ends of the roller can reduce the impact force of the steel balls on the roller, playing a buffering role. Since the surfaces of both ends of the roller have a curvature, the steel balls and the material will continue to move forward along the curvature direction and then fall, greatly reducing the impact wear of the steel balls and the material on both ends of the roller and increasing the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the present utility model;

[0016] Figure 2 is a top view of the present utility model;

[0017] Figure 3 is a side view of the roller of the present utility model.

[0018] In the figure: 1, support; 2, rotating shaft; 3, roller; 4, bearing seat; 5, straight rod; 6, flap; 7, sound-absorbing pad; 8, conical lining plate; 9, arc-shaped convex block; 10, reducer; 11, coupling; 12, motor; 13, first sprocket; 14, second sprocket; 15, chain; 16, feed inlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides Figures 1-3 A round head center transmission ball mill shown includes:

[0021] The bracket 1 has two ends at the top of the bracket 1 which are rotatably connected to a roller 3 through a rotating shaft 2. A bearing seat 4 is provided at the connection between the bracket 1 and the rotating shaft 2. A straight rod 5 is connected at the center of the roller 3. The surface of the straight rod 5 is annularly connected to a plurality of flaps 6. The flaps 6 are not only conducive to cross-shoveling and turning materials for crushing, but also provide sufficient distance for the steel balls and materials to be ground. The staggered flaps 6 also make a time difference between each turning and shoveling. This time difference is also very short, which is just conducive to the impact and crushing of the ball materials in the air, saving labor and energy, and playing a great role in saving energy.

[0022] The inner wall surface of the drum 3 is connected with a sound-absorbing pad 7, and the surface of the sound-absorbing pad 7 is evenly distributed with a number of conical lining plates 8 for protecting the inner wall of the drum 3 from impact. The surface of the conical lining plates 8 is provided with a number of arc-shaped protrusions 9, so that the conical lining plates 8 increase the contact area between the grinding body and the material through the arc-shaped protrusions 9, thereby improving the grinding efficiency and effect.

[0023] A reducer 10 is disposed on one side of the bracket 1 , wherein a set of rotating shafts 2 penetrates through the bearing seat 4 and is connected to the output shaft of the reducer 10 through a coupling 11 .

[0024] A motor 12 is disposed at the bottom of the reducer 10 and on the surface of the bracket 1 . The output shaft of the motor 12 is connected to a first sprocket 13 . One end of the reducer 10 is connected to a second sprocket 14 .

[0025] The first sprocket 13 and the second sprocket 14 are connected to each other through a chain 15 .

[0026] The two ends of the drum 3 are arc-shaped and a feed port 16 is provided on the surface of the drum 3. The ends of the drum 3 are arc-shaped covers, which can avoid or reduce the impact and wear of the steel balls on the two ends of the drum 3, avoid material accumulation in dead corners, and improve the use efficiency.

[0027] The sound-absorbing pad 7 is made of rubber material, and the rubber sound-absorbing pad 7 contacts the conical lining plate 8, so that the sound-absorbing pad 7 can absorb and disperse the energy generated by the impact.

[0028] For this center-driven ball mill with a spherical head, materials to be processed are added into the drum 3 through the feed inlet 16. Then, the motor 12 is started. The output shaft of the motor 12 drives the first sprocket 13 to rotate. The first sprocket 13 drives the second sprocket 14 to rotate through the chain 15. Thus, the output shaft of the reducer 10 is driven to rotate through the second sprocket 14, and the rotating shaft 2 connected thereto is driven through the coupling 11, so as to drive both ends of the drum 3 to rotate inside the drum 3. When the materials inside the drum 3 collide with the inner wall of the drum 3 during the rotation of the drum 3, they will contact the sound-absorbing pad 7 made of rubber and the conical liner 8. Thus, the sound-absorbing pad 7 can absorb and disperse the energy generated by the impact, and the conical liner 8 enables the steel balls and the materials to directly contact the inner wall of the drum 3, thereby reducing noise and mitigating damage to the equipment.

[0029] The centrifugal force generated inside the drum 3 due to the rotation of the drum 3 brings the steel balls to a certain height and then they fall, exerting a heavy blow and grinding effect on the materials. The arc-shaped protrusions 9 on the surface of the conical liner 8 can improve the wear resistance of the conical liner 8, and when the steel balls and the materials freely fall under the action of gravity, the contact area with the conical liner 8 is increased through the arc-shaped protrusions 9, so that the collision and friction between the steel balls and the materials become more intense, improving the grinding efficiency. Moreover, the arc-shaped ends of the drum 3 can reduce the impact force of the steel balls on the drum 3, playing a buffering role. Since the surfaces of both ends of the drum 3 have a curvature, the steel balls and the materials will continue to move forward along the curvature direction and then fall, greatly reducing the impact wear of the steel balls and the materials on both ends of the drum 3 and increasing the service life of the equipment.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A center-driven ball mill with a spherical head, characterized in that include: A bracket (1), the top two ends of the bracket (1) are rotatably connected to a roller (3) via a rotating shaft (2), a bearing seat (4) is provided at the connection between the bracket (1) and the rotating shaft (2), a straight rod (5) is connected to the center of the roller (3), a plurality of flaps (6) are connected to the surface of the straight rod (5) in a ring shape, a sound-absorbing pad (7) is connected to the inner wall surface of the roller (3), a plurality of conical lining plates (8) are evenly distributed on the surface of the sound-absorbing pad (7) for protecting the inner wall of the roller (3) from impact, and a plurality of arc-shaped protrusions (9) are provided on the surface of the conical lining plate (8), so that the conical lining plate (8) increases the contact area between the grinding body and the material through the arc-shaped protrusions (9), thereby improving the grinding efficiency and effect.

2. The center-driven ball mill with a spherical head according to claim 1, wherein: A reducer (10) is provided on one side of the bracket (1), wherein a set of rotating shafts (2) penetrates the bearing seat (4) and is connected to the output shaft of the reducer (10) via a coupling (11).

3. A center-driven ball mill with a round head, as described in claim 2, characterized in that: A motor (12) is provided at the bottom of the reducer (10) and located on the surface of the bracket (1); an output shaft of the motor (12) is connected to a first sprocket (13); and one end of the reducer (10) is connected to a second sprocket (14).

4. A center-driven ball mill with a round head, as claimed in claim 3, wherein: The first sprocket (13) and the second sprocket (14) are connected in transmission via a chain (15).

5. A center-driven ball mill with a round head, characterized in that: The two ends of the roller (3) are arranged in an arc shape and a feed port (16) is provided on the surface of the roller (3).

6. The center-driven ball mill with a round head according to claim 1, characterized in that: The sound absorbing pad (7) is made of rubber.

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