Steel ball adding machine

Abstract

The utility model provides a steel ball adding machine, which is arranged on one side of a ball mill, is used for adding steel balls into a grinding cavity of the ball mill, and comprises material storage boxes and a material conveyor, and the material conveyor is arranged between the material storage boxes and is used for conveying the steel balls discharged from the material storage boxes into the ball mill; a plurality of storage bins are arranged in the storage box in an annular array mode, steel balls are stored in the storage bins, and the diameters of the steel balls in the storage bins are different. Discharging openings are formed in the ends, close to the cavity, of the bottoms of the storage bins, a discharging pipe is coaxially and rotationally arranged at the lower end of the cavity, a material guiding cavity is formed in the discharging pipe in the radial direction, the material guiding cavity communicates with an inner cavity of the discharging pipe, and the discharging openings are all located in the rotating path of the material guiding cavity; a photo interrupter is arranged in the material guide cavity; a material guide groove is formed below the material discharging pipe and communicates with the material conveying device. The problems that when steel balls are added in an existing ball mill, the steel balls are slowly added, the number of the steel balls is difficult to accurately control, and the overall grinding production efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of adding steel balls to a ball mill, in particular to a steel ball adding machine. Background Art

[0002] In actual use, ball mills require a variety of steel balls with different diameters to optimize grinding efficiency and product particle size distribution. By properly configuring steel balls of varying diameters, effective material grinding can be achieved while reducing energy consumption and improving production efficiency. Typically, ball mills use balls with diameters ranging from 20mm to 125mm, with those used in ultra-large ball mills ranging from 130mm to 150mm. The larger the diameter, the coarser the grinding particle size; the smaller the diameter, the finer the grinding particle size.

[0003] At the same time, according to the operating status of the ball mill and the needs of material grinding, the amount of steel balls added needs to be manually adjusted to improve the grinding efficiency and the production capacity of the equipment. Therefore, it is necessary to quantitatively add steel balls of different ball diameters. Existing steel ball adding equipment mostly requires manual intervention, manually selecting steel balls of appropriate ball diameters and manually counting to determine the number of steel balls before adding them to the ball mill through lifting equipment. Not only is the addition of steel balls slow and the quantity difficult to accurately control, but it also leads to low overall grinding production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a steel ball adding machine, which solves the problems that when adding steel balls to the existing ball mill, it is often necessary to manually select suitable steel balls and then add them to the ball mill. Not only is the addition of steel balls slow, the number of steel balls is difficult to accurately control, and the overall grinding production efficiency is low.

[0005] The embodiment of the utility model is realized by the following technical solution: a steel ball adding machine is arranged on one side of a ball mill, and is used to add steel balls into the grinding chamber of the ball mill, comprising a storage box and a feeder, the feeder being arranged between the storage boxes, and the feeder being used to transport the steel balls discharged from the storage box into the ball mill;

[0006] A cavity is vertically provided at the central axis of the storage box, and a plurality of storage bins are provided in a ring array between the cavity and the inner wall of the storage box, wherein steel balls are stored in the storage bins, and the diameters of the steel balls in the plurality of storage bins are different;

[0007] A discharge port is provided at one end of the bottom of the plurality of storage bins close to the cavity, a discharge pipe is provided at the lower end of the cavity for coaxial rotation, a guide cavity is provided radially on the discharge pipe, the guide cavity is communicated with the inner cavity of the discharge pipe, and the plurality of discharge ports are located on the rotation path of the guide cavity;

[0008] A light interrupter is provided in the material guiding cavity;

[0009] A material guide trough is provided below the discharge pipe, the material guide trough is arranged obliquely, and the material guide trough is communicated with the feeder.

[0010] Furthermore, the discharge port communicated with the storage bin is clearance-matched with the steel balls in the storage bin.

[0011] Furthermore, a bearing platform is provided in the cavity, and a vibration motor is provided on the bearing platform.

[0012] Furthermore, the inner bottom of the storage bin is inclined toward the discharge port; and the material guiding cavity is inclined toward the axis of the discharge pipe.

[0013] Furthermore, it also includes a first reducer, a driven wheel is sleeved on the discharge pipe, and a driving wheel is provided at the output end of the first reducer, and the driving wheel is connected to the driven wheel through a synchronous belt.

[0014] Furthermore, the feeder includes a chassis, a main transmission wheel, a slave transmission wheel, a synchronous chain, a chain claw and a second reducer, the main transmission wheel and the slave transmission wheel are arranged in the chassis at intervals, the main transmission wheel is located obliquely above the side of the slave transmission wheel away from the storage box, and the synchronous chain is sleeved on the main transmission wheel and the slave transmission wheel;

[0015] A plurality of chain claws are arranged at intervals on the synchronous chain; the second reducer is arranged on the chassis, and the output end of the second reducer is connected to the main transmission wheel through a transmission belt.

[0016] Furthermore, a notch is provided at the bottom of the guide trough near the feeder, and the synchronization chain is located in the notch;

[0017] A feeding port is provided on one side of the chassis away from the material storage box, the feeding port is located below the main transmission wheel, a material guide pipe is connected to the feeding port, the material guide pipe is inclined and connected to the top of the grinding chamber of the ball mill.

[0018] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0019] 1. When it is necessary to discharge the steel balls in a certain storage bin, quickly rotate the discharge pipe to align it with the discharge port of the corresponding storage bin. Then the steel balls inside the storage bin pass through the discharge port one by one into the guide cavity and pass through the light interrupter in the guide bin, which is a penetrating photoelectric sensor. The light-emitting component and the light-receiving component are arranged face to face and set in the same package, which are the two side walls of the guide cavity. The photoelectric sensor with the detection function is realized by using the principle that the detection object, here is the steel ball, will block the light when the steel ball passes through. The data is then fed back to the controller to count the number of steel balls discharged. When the corresponding number is reached, the discharge pipe is controlled to rotate so that the guide cavity and the discharge port are misaligned to stop discharging. Similarly, steel balls of various ball diameters can be discharged in this way, and the number of steel balls discharged can also be accurately controlled. Automatic discharge and counting of the equipment greatly improves the efficiency of steel ball addition, thereby improving the efficiency of overall grinding production.

[0020] 2. When the steel balls in the storage bin need to be discharged, the vibration motor can be turned on when the guide cavity is aligned with the discharge port to prevent the steel balls from getting stuck in the discharge port and ensure better discharge. The bottom of the storage bin is tilted toward the discharge port, so that under the action of gravity, the steel balls inside are prone to move toward the discharge port, which helps the discharge of the steel balls. The guide cavity is tilted toward the axis of the discharge pipe, so that under the action of gravity, the steel balls entering can automatically move toward the center axis of the discharge pipe and then fall into the guide chute.

[0021] 3. The second reducer rotates the main drive wheel through the transmission belt, and the main drive wheel rotates synchronously with the slave drive wheel through the synchronous chain, which in turn drives several chain claws to run in one direction, from the lower left to the upper right as shown in the figure. There is a notch at the end of the guide trough, and the synchronous chain is located in the notch. When the steel ball rolls to the end of the guide trough under the action of gravity, it is limited by the synchronous chain and is held by the chain claw with the opening at the top and transported upward. After passing the high point, the opening of the chain claw is downward, and it is discharged from the discharge port under the action of gravity and transported to the grinding chamber of the ball mill through the guide pipe. A valve is provided on the guide pipe to prevent the liquid in the ball mill from flowing back into the guide pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a structural diagram of a steel ball adding machine provided by the utility model;

[0024] Figure 2 This is a horizontal cross-sectional schematic diagram of a steel ball adding machine provided by the present invention at a light interrupter;

[0025] Icons: 1. Ball mill, 2. Storage tank, 21. Cavity, 22. Storage bin, 221. Discharge port, 23. Discharge pipe, 231. Guide cavity, 24. Photointerrupter, 25. Guide trough, 251. Recess, 26. Support platform, 27. Vibration motor, 28. First reducer, 281. Driven wheel, 282. Driving wheel, 283. Synchronous belt, 3. Feeder, 31. Chassis, 32. Main drive wheel, 33. Slave drive wheel, 34. Synchronous chain, 35. Chain claw, 36. Second reducer, 37. Discharge port, 38. Guide pipe. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0028] Reference Figures 1 to 2 As shown, this embodiment provides a steel ball adding machine, which is arranged on one side of the ball mill 1 and is used to add steel balls into the grinding chamber of the ball mill 1. The machine includes a storage box 2 and a feeder 3. The feeder 3 is arranged between the storage boxes 2. The feeder 3 is used to transport the steel balls discharged from the storage box 2 into the ball mill 1, thereby replacing manual addition of steel balls and greatly improving work efficiency.

[0029] A cavity 21 is vertically provided at the central axis of the storage box 2, and a plurality of storage bins 22 are arranged in a circular array between the cavity 21 and the inner wall of the storage box 2. Steel balls are stored in the storage bins 22, and the diameters of the steel balls in the plurality of storage bins 22 are different. According to actual grinding needs, steel balls of corresponding diameter and quantity are hoisted from each storage bin 22 and transported to the ball mill 1 through the feeder 3 to perform high-quality and efficient grinding.

[0030] A discharge port 221 is provided at one end of the bottom of each of the plurality of storage bins 22 near the cavity 21. The discharge port 221 connected to the storage bin 22 is matched with the clearance of the steel balls in the storage bin 22, so that the steel balls inside can only pass through the discharge port 221 one by one, which is convenient for subsequent statistics and control of the number of steel balls passing through the discharge port 221. A discharge pipe 23 is coaxially rotatably provided at the lower end of the cavity 21. A guide cavity 231 is radially provided on the discharge pipe 23. The guide cavity 231 is connected to the inner cavity of the discharge pipe 23. The plurality of discharge ports 221 are located on the rotation path of the guide cavity 231; a light interrupter 24 is provided in the guide cavity 231.

[0031] like Figure 1 and 2 As shown, in the specific implementation, when it is necessary to discharge the steel balls in a certain storage bin 22, the discharge pipe 23 is quickly rotated to align it with the discharge port 221 of the corresponding storage bin 22, and then the steel balls inside the storage bin 22 pass through the discharge port 221 one by one into the guide cavity 231, and pass through the light interrupter 24 in the guide bin, that is, the penetrating photoelectric sensor, which is a light-emitting component and a light-receiving component arranged face to face and set in the same package, here are the two side walls of the guide cavity 231, and utilizes the principle of blocking light when the object is detected, here is the steel ball, to realize the detection function of the photoelectric sensor, and then feed back to the controller to count the number of steel balls discharged. When the corresponding number is reached, the discharge pipe 23 is controlled to rotate so that the guide cavity 231 and the discharge port 221 are misaligned to stop discharging. Similarly, according to this method, steel balls of various ball diameters can be discharged, and the number of steel balls discharged can also be accurately controlled. The automatic discharge and counting of the equipment greatly improves the efficiency of steel ball addition, thereby improving the efficiency of the overall grinding production.

[0032] A guide trough 25 is provided below the discharge pipe 23. The guide trough 25 is tilted and communicates with the feeder 3. The guide trough 25 is used to transport the steel balls discharged from the discharge pipe 23 to the feeder 3, and then to be lifted and transported to the ball mill 1.

[0033] More specifically, Figure 1 As shown, a supporting platform 26 is provided in the cavity 21, and a vibration motor 27 is provided on the supporting platform 26. When the steel balls in the storage bin 22 need to be discharged, in order to discharge them better, the vibration motor 27 can be turned on when the guide cavity 231 is aligned with the discharge port 221, thereby avoiding the steel balls from being stuck in the discharge port 221, and enabling the steel balls to be discharged better.

[0034] The inner bottom of the storage bin 22 is tilted toward the discharge port 221, so that under the action of gravity, the steel balls inside are likely to move toward the discharge port 221, which helps to discharge the steel balls; the guide cavity 231 is tilted toward the axis of the discharge pipe 23, so that under the action of gravity, the steel balls entering can automatically move toward the center axis of the discharge pipe 23 and then fall into the guide trough 25.

[0035] like Figure 1 As shown, it also includes a first reducer 28, a driven wheel 281 is provided on the discharge pipe 23, and a driving wheel 282 is provided at the output end of the first reducer 28. The driving wheel 282 is connected to the driven wheel 281 through a synchronous belt 283. During specific implementation, the motor of the first reducer 28 adopts a servo stepper motor, which needs to quickly drive the discharge pipe 23 to rotate while also needing to accurately control the rotation direction of the discharge pipe 23. Rapid rotation can prevent steel balls from entering when the guide cavity 231 is aligned with a certain discharge port 221. However, in actual use, it does not matter if one or two enter, and it will not have much impact on the overall grinding. However, generally no steel balls will enter the guide cavity 231 when it rotates to adjust its direction.

[0036] like Figure 1 As shown, the feeder 3 includes a chassis 31, a main transmission wheel 32, a slave transmission wheel 33, a synchronous chain 34, a chain claw 35 and a second reducer 36. The main transmission wheel 32 and the slave transmission wheel 33 are arranged in the chassis 31 at intervals. The main transmission wheel 32 is located obliquely above the side of the slave transmission wheel 33 away from the storage box 2. The synchronous chain 34 is sleeved on the main transmission wheel 32 and the slave transmission wheel 33.

[0037] A plurality of chain claws 35 are arranged at intervals on the synchronous chain 34; the second reducer 36 is arranged on the chassis 31, and the output end of the second reducer 36 is connected to the main transmission wheel 32 through a transmission belt.

[0038] A notch 251 is provided at the bottom of the guide trough 25 near the feeder 3 , and the synchronous chain 34 is located in the notch 251 ;

[0039] A discharge port 37 is provided on the side of the chassis 31 away from the storage box 2. The discharge port 37 is located below the main transmission wheel 32. A material guide pipe 38 is connected to the discharge port 37. The material guide pipe 38 is inclined and connected to the top of the grinding chamber of the ball mill 1.

[0040] When implementing it specifically, Figure 1As shown, the second reducer 36 rotates the main transmission wheel 32 through the transmission belt synchronous belt 283, and the main transmission wheel 32 rotates the slave transmission wheel 33 through the synchronous chain 34 synchronous belt 283, thereby driving a number of chain claws 35 to operate in one direction, which is from the lower left to the upper right as shown in the figure. There is a notch 251 at the end of the guide trough 25, and the synchronous chain 34 is located in the notch 251. Then, when the steel ball rolls to the end of the guide trough 25 under the action of gravity, it is limited by the synchronous chain 34 and is held by the chain claw 35 with an opening at the top and transported upward. After passing the high point, the opening of the chain claw 35 is downward, and it is discharged from the discharge port 37 under the action of gravity and transported to the grinding chamber of the ball mill 1 through the guide pipe 38. A valve is provided on the guide pipe 38 to prevent the liquid in the ball mill 1 from flowing back into the guide pipe 38.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A steel ball adding machine, arranged on one side of a ball mill (1), for adding steel balls into the grinding chamber of the ball mill (1), characterized in that: It comprises a material storage box (2) and a feeder (3), wherein the feeder (3) is arranged between the material storage boxes (2), and the feeder (3) is used to transport the steel balls discharged from the material storage box (2) into the ball mill (1); A cavity (21) is vertically provided at the center axis of the storage box (2), and a plurality of storage bins (22) are provided in a circular array between the cavity (21) and the inner wall of the storage box (2). Steel balls are stored in the storage bins (22), and the diameters of the steel balls in the plurality of storage bins (22) are different. A discharge port (221) is provided at one end of the bottom of the plurality of storage bins (22) close to the cavity (21); a discharge pipe (23) is provided at the lower end of the cavity (21) for coaxial rotation; a guide cavity (231) is provided radially on the discharge pipe (23); the guide cavity (231) is communicated with the inner cavity of the discharge pipe (23); and the plurality of discharge ports (221) are located on the rotation path of the guide cavity (231); A light interrupter (24) is provided in the material guiding cavity (231); A material guide trough (25) is provided below the discharge pipe (23), the material guide trough (25) is arranged obliquely, and the material guide trough (25) is communicated with the feeder (3).

2. A steel ball adding machine according to claim 1, characterized in that, The discharge port (221) communicated with the storage bin (22) is clearance-matched with the steel balls in the storage bin (22).

3. A steel ball adding machine according to claim 2, characterized in that, A bearing platform (26) is provided in the cavity (21), and a vibration motor (27) is provided on the bearing platform (26).

4. A steel ball adding machine according to claim 3, characterized in that, The inner bottom of the storage bin (22) is inclined toward the discharge port (221); and the material guiding cavity (231) is inclined toward the axis of the discharge pipe (23).

5. A steel ball adding machine according to claim 4, characterized in that, The invention also includes a first reducer (28), a driven wheel (281) is sleeved on the discharge pipe (23), a driving wheel (282) is provided at the output end of the first reducer (28), and the driving wheel (282) is connected to the driven wheel (281) through a synchronous belt (283).

6. A steel ball adding machine according to any one of claims 1-5, characterized in that: The feeder (3) comprises a chassis (31), a main transmission wheel (32), a slave transmission wheel (33), a synchronous chain (34), a chain claw (35) and a second speed reducer (36); the main transmission wheel (32) and the slave transmission wheel (33) are arranged in the chassis (31) at intervals; the main transmission wheel (32) is located obliquely above the slave transmission wheel (33) on a side away from the storage box (2); and the synchronous chain (34) is sleeved on the main transmission wheel (32) and the slave transmission wheel (33); A plurality of chain claws (35) are arranged at intervals on the synchronous chain (34); the second reducer (36) is arranged on the chassis (31), and the output end of the second reducer (36) is connected to the main transmission wheel (32) through a transmission belt.

7. A steel ball adding machine according to claim 6, characterized in that: A notch (251) is provided at the bottom of the guide trough (25) near the feeder (3), and the synchronous chain (34) is located in the notch (251); A feeding port (37) is provided on a side of the machine case (31) away from the material storage box (2), and the feeding port (37) is located below the main transmission wheel (32). A material guide pipe (38) is provided in communication with the feeding port (37), and the material guide pipe (38) is arranged at an angle and is in communication with the top of the grinding chamber of the ball mill (1).

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