A ball mill automatic ball unloading and screening device

Abstract

The utility model provides an automatic ball unloading and screening device for a ball mill, and relates to the technical field of screening devices. The utility model comprises a ball mill frame, a material barrel is rotatably arranged on the top of the ball mill frame, a screening mechanism is arranged on one side of the ball mill frame, the screening mechanism comprises a sliding rod, two round rods are fixedly connected to one side of the sliding rod, two rectangular rods are slidably connected to the outer surface of the round rod, a plurality of through holes are opened at the bottom end of the inner wall of the screening box, a collecting box is fixedly connected to the bottom end of the screening box, and two electric push rods are arranged on one side of the sliding rod. The utility model sets a screening mechanism, and operates the electric push rod to make zirconia beads roll inside the screening box, zirconia beads with a diameter smaller than the through hole will enter the inside of the collecting box, and zirconia beads with relatively intact surfaces will remain in the inside of the screening box, and zirconia beads with severe wear can be detected in this way, thereby improving the efficiency of screening out severely worn zirconia beads.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to an automatic ball unloading screening device for a ball mill. Background Art

[0002] The ball mill is mainly composed of a transmission device, a cylinder, a grinding body and other parts. It has the advantages of large production capacity, can meet the needs of large-scale industrial production, strong adaptability to various materials, stable product quality, and low maintenance and management costs. It is widely used in mining, metallurgy, chemical industry, building materials, electric power, ceramics and other fields.

[0003] As a kind of grinding material inside the ball mill, zirconia beads will be worn or damaged due to impact, friction, collision and other factors during use, thus affecting the grinding efficiency. Therefore, after a period of grinding in the ball mill, the grinding medium zirconia beads need to be inspected, and the broken or severely damaged ones should be picked out and replaced. Generally, the workshop opens the wall of the ball mill barrel and scatters the zirconia beads directly on the ground for manual selection, which is time-consuming and cumbersome, and the selection efficiency is low. Summary of the invention

[0004] The utility model aims to solve the problem that after a ball mill has been grinding for a period of time, the grinding medium zirconium oxide beads need to be inspected and the broken or severely damaged ones need to be picked out and replaced. Generally, the workshop opens the barrel wall of the ball mill and directly scatters the zirconium oxide beads on the ground for manual selection, which is time-consuming, cumbersome and has low selection efficiency. Therefore, an automatic ball unloading and screening device for a ball mill is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic ball unloading and screening device for a ball mill comprises a ball mill frame, a material barrel is rotatably arranged on the top of the ball mill frame, a screening mechanism is arranged on one side of the ball mill frame, the screening mechanism comprises a sliding rod, two round rods are fixedly connected to one side of the sliding rod, a frame rod is fixedly connected to one end of the round rod away from the sliding rod, a moving wheel is arranged on the bottom end of the frame rod, two rectangular rods are slidably connected to the outer surface of the round rod, a screening box is fixedly connected to the side where the two rectangular rods are close to each other, A plurality of through holes are provided at the bottom end of the inner wall of the screening box, a collecting box is fixedly connected to the bottom end of the screening box, two electric push rods are provided on one side of the sliding rod, the output ends of the two electric push rods are fixedly connected to one side of the rectangular rod away from one side of the sliding rod, springs are provided at both ends of the round rod, the two ends of the two springs at both ends of the round rod are respectively fixedly connected to one side of a rectangular rod and one side of the sliding rod, and to one side of a rectangular rod and one side of the frame rod, a sliding groove is provided on the outer surface of the ball mill frame, and the two ends of the sliding rod slide on the inner wall of the sliding groove.

[0006] The effect achieved by the above components is: by setting a screening box, when it is necessary to screen the zirconia beads inside the ball mill, the frame rod can be pushed to control the frame rod to move through the moving wheel at the bottom and make the sliding rod slide on the inner wall of the slide groove, so that the screening box is moved below the discharge port of the barrel, and then the barrel is opened to allow the zirconia beads to fall into the screening box, and at the same time, the two electric push rods on one side of the sliding rod are operated to extend and retract, and the two rectangular rods are pulled to slide back and forth on the outer surface of the round rod and compress and stretch the spring on the outer surface of the round rod, so that the zirconia beads roll inside the screening box, and the diameter of the zirconia beads with severe surface wear is smaller than the diameter of the through hole, and they will pass through the through hole at the bottom of the screening box and enter the interior of the collecting box. After a period of operation, the zirconia beads with severe surface wear are inside the collecting box, and the zirconia beads with relatively intact surfaces remain in the screening box. In this way, the severely worn zirconia beads are detected, and the efficiency of screening out the severely worn zirconia beads is improved. After the screening is completed, the frame rod is pulled to move away from the ball mill frame to the edge of the ball mill frame to avoid affecting the normal use of the ball mill.

[0007] Preferably, the output end of the electric push rod is fixedly connected to the inclined block, and one end of the inclined block away from the electric push rod is fixedly connected to one side of the rectangular rod.

[0008] The effect achieved by the above components is: by setting the inclined block, the connection between the output end of the electric push rod and the rectangular rod can be reinforced, so as to avoid deformation and loosening of the connection between the electric push rod and the rectangular rod when the electric push rod drives the rectangular rod to move back and forth.

[0009] Preferably, one side of the frame rod is fixedly connected to two reinforcing rods, and one end of the two reinforcing rods away from the frame rod is fixedly connected to one side of the sliding rod.

[0010] The effects achieved by the above components are: by arranging the reinforcing rod, the connection and angle between the frame rod and the sliding rod can be further reinforced and restricted, thereby increasing the structural stability of the screening mechanism.

[0011] Preferably, a blocking rod is fixedly connected to one side of the inner wall of the collection box, and the blocking rod is located at the edge of the inner wall of the collection box.

[0012] The effect achieved by the above components is that the blocking rod can be provided to block the outlet edge of the collection box, thereby preventing the zirconia beads from flying out through the outlet at one end of the collection box during the screening process as much as possible.

[0013] Preferably, a baffle is fixedly connected to the top end of one of the rectangular rods, and the baffle is located above the rectangular rod and the sliding rod.

[0014] The effect achieved by the above components is: by setting the baffle, the gap between the rectangular rod and the sliding rod can be blocked, so as to prevent the zirconia beads from falling into the gap between the rectangular rod and the sliding rod when being output through the barrel, and failing to correctly enter the interior of the screening box.

[0015] Preferably, a pull rod is fixedly connected to one side of the rack rod, and the cross-section of the pull rod is U-shaped.

[0016] The effect achieved by the above components is that by holding the outer surface of the U-shaped pull rod, the frame rod can be pulled more conveniently to control the frame rod to move and adjust the position of the screening mechanism.

[0017] Preferably, an auxiliary mechanism is provided inside the collection box, and the auxiliary mechanism includes a push plate, both ends of the push plate are fixedly connected with connecting rods, rectangular grooves are opened on both sides of the outer surface of the collection box, the outer surface of the connecting rod slides on the inner wall of the rectangular groove, and the bottom end of the push plate slides on the bottom end of the inner wall of the collection box.

[0018] The effect achieved by the above components is: after the zirconia beads are screened, the connecting rod can be pushed to slide on the inner wall of the rectangular groove to control the push plate to slide on the inner wall of the collection box to facilitate pushing out the zirconia beads inside the collection box, thereby improving the efficiency of the screening mechanism when in use.

[0019] Preferably, one end of the connecting rod is fixedly connected to a slot rod, and the outer surface of the slot rod is provided with two grooves.

[0020] The effect achieved by the above components is that by holding the two grooves on the outer surface of the groove rod, the connecting rod can be pushed more conveniently to control the push plate to move inside the collection box.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are as follows: in the utility model, a screening mechanism is provided and the electric push rod is operated to make the zirconia beads roll inside the screening box, and the zirconia beads with a diameter smaller than the through hole will enter the interior of the collecting box, while the zirconia beads with relatively intact surfaces will remain inside the screening box. In this way, the severely worn zirconia beads can be detected, thereby improving the efficiency of screening out the severely worn zirconia beads. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the ball mill frame of the utility model;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the utility model at the pole;

[0025] Figure 4It is a three-dimensional structural schematic diagram of the screening box of the utility model;

[0026] In the figure: 1. ball mill frame; 2. screening mechanism; 3. auxiliary mechanism; 4. barrel; 21. slide; 22. sliding rod; 23. frame rod; 24. round rod; 25. rectangular rod; 26. screening box; 27. through hole; 28. spring; 29. ​​electric push rod; 210. collecting box; 211. inclined block; 212. reinforcing rod; 213. blocking rod; 214. baffle; 215. pull rod; 31. rectangular groove; 32. connecting rod; 33. push plate; 34. groove rod. DETAILED DESCRIPTION

[0027] Embodiment 1, as Figure 1-4As shown, an automatic ball unloading and screening device for a ball mill comprises a ball mill frame 1, a material barrel 4 is rotatably provided at the top of the ball mill frame 1, a screening mechanism 2 is provided on one side of the ball mill frame 1, the screening mechanism 2 comprises a sliding rod 22, two round rods 24 are fixedly connected to one side of the sliding rod 22, a frame rod 23 is fixedly connected to one end of the round rod 24 away from the sliding rod 22, a moving wheel is provided at the bottom end of the frame rod 23, two rectangular rods 25 are slidably connected to the outer surface of the round rod 24, a screening box 26 is fixedly connected to one side of the two rectangular rods 25 close to each other, and a plurality of through holes 2 are provided at the bottom end of the inner wall of the screening box 26. 7. The bottom end of the screening box 26 is fixedly connected with a collecting box 210. Two electric push rods 29 are arranged on one side of the sliding rod 22. The output ends of the two electric push rods 29 are fixedly connected with one side of the rectangular rod 25 away from the sliding rod 22. The two ends of the round rod 24 are provided with springs 28. The two ends of the two springs 28 at the two ends of the round rod 24 are respectively fixedly connected with one side of a rectangular rod 25 and one side of the sliding rod 22, and with one side of a rectangular rod 25 and one side of the frame rod 23. The outer surface of the ball mill frame 1 is provided with a slide groove 21. The two ends of the sliding rod 22 slide on the inner wall of the slide groove 21. By setting the screening box 26, when it is necessary to screen the zirconium oxide beads inside the ball mill, the frame rod 23 can be pushed to control the frame rod 23 to move through the moving wheel at the bottom and make the sliding rod 22 slide on the inner wall of the slide groove 21, so that the screening box 26 is moved below the discharge port of the barrel 4, and then the barrel 4 is opened to make the zirconium oxide beads fall into the screening box 26, and at the same time, the two electric push rods 29 on one side of the sliding rod 22 are operated to extend and retract, pull the two rectangular rods 25 to slide back and forth on the outer surface of the round rod 24, and compress and stretch the spring 28 on the outer surface of the round rod 24, so that the zirconium oxide beads are inside the screening box 26. When rolling occurs, the zirconia beads with severely worn surfaces whose diameter is smaller than the diameter of the through hole 27 will pass through the through hole 27 at the bottom of the screening box 26 and enter the interior of the collecting box 210. After a period of operation, the zirconia beads with severely worn surfaces are inside the collecting box 210, and the zirconia beads with relatively intact surfaces remain inside the screening box 26. In this way, the severely worn zirconia beads can be detected, and the efficiency of screening out the severely worn zirconia beads is improved. After the screening is completed, the frame rod 23 is pulled away from the ball mill frame 1 and moved to the edge of the ball mill frame 1 to avoid affecting the normal use of the ball mill.

[0028] Reference Figure 2-4As shown, in the present embodiment: the output end of the electric push rod 29 is fixedly connected to the inclined block 211, and the end of the inclined block 211 away from the electric push rod 29 is fixedly connected to one side of the rectangular rod 25. By setting the inclined block 211, the connection between the output end of the electric push rod 29 and the rectangular rod 25 can be reinforced, and deformation and loosening of the connection between the electric push rod 29 and the rectangular rod 25 when the electric push rod 29 drives the rectangular rod 25 to move back and forth can be avoided as much as possible. One side of the frame rod 23 is fixedly connected to two reinforcing rods 212, and one end of the two reinforcing rods 212 away from the frame rod 23 is fixedly connected to one side of the sliding rod 22. By setting the reinforcing rods 212, the connection and angle between the frame rod 23 and the sliding rod 22 can be further reinforced and restricted, thereby increasing the structural stability of the screening mechanism 2.

[0029] Reference Figure 2-4 As shown, in the present embodiment: a baffle 213 is fixedly connected to one side of the inner wall of the collecting box 210, and the baffle 213 is located at the edge of the inner wall of the collecting box 210. By setting the baffle 213, the edge of the outlet of the collecting box 210 can be blocked to prevent the zirconia beads from flying out through the outlet at one end of the collecting box 210 during the screening process as much as possible. A baffle 214 is fixedly connected to the top of a rectangular rod 25, and the baffle 214 is located above the rectangular rod 25 and the sliding rod 22. By setting the baffle 214, the gap between the rectangular rod 25 and the sliding rod 22 can be blocked to prevent the zirconia beads from falling into the gap between the rectangular rod 25 and the sliding rod 22 when being output through the barrel 4, and failing to correctly enter the interior of the screening box 26. A pull rod 215 is fixedly connected to one side of the frame rod 23. The cross-sectional shape of the pull rod 215 is U-shaped. Holding the outer surface of the U-shaped pull rod 215 can more conveniently pull the frame rod 23 to control the frame rod 23 to move and adjust the position of the screening mechanism 2.

[0030] Reference Figure 1 , Figure 3 and Figure 4 As shown, in the present embodiment: an auxiliary mechanism 3 is arranged inside the collecting box 210, the auxiliary mechanism 3 comprises a push plate 33, both ends of the push plate 33 are fixedly connected with a connecting rod 32, rectangular grooves 31 are provided on both sides of the outer surface of the collecting box 210, the outer surface of the connecting rod 32 slides on the inner wall of the rectangular groove 31, and the bottom end of the push plate 33 slides on the bottom end of the inner wall of the collecting box 210. After the zirconia beads are screened, the connecting rod 32 can be pushed to slide on the inner wall of the rectangular groove 31 to control the push plate 33 to slide on the inner wall of the collecting box 210, so as to push out the zirconia beads inside the collecting box 210 and improve the efficiency of the screening mechanism 2 when in use. One end of the connecting rod 32 is fixedly connected with a slot rod 34, and two grooves are provided on the outer surface of the slot rod 34. Holding the two grooves on the outer surface of the slot rod 34 can more conveniently push the connecting rod 32 to control the push plate 33 to move inside the collecting box 210.

[0031] Working principle: When the zirconia beads of the ball mill are screened by the screening device, the frame rod 23 is pushed to control the frame rod 23 to move through the moving wheel at the bottom and the sliding rod 22 is made to slide on the inner wall of the slide groove 21, and the screening box 26 is moved to the bottom of the discharge port of the barrel 4, and then the barrel 4 is opened to allow the zirconia beads to fall into the screening box 26. At the same time, the two electric push rods 29 on one side of the sliding rod 22 are operated to extend and retract, and the two rectangular rods 25 are pulled to slide back and forth on the outer surface of the round rod 24 and compress and stretch the spring 28 on the outer surface of the round rod 24, so that the zirconia beads roll inside the screening box 26. The diameter of the zirconia beads with severe surface wear is smaller than the through hole 27. The diameter of the beads will pass through the through hole 27 at the bottom of the screening box 26 and enter the interior of the collecting box 210. After operating for a period of time, the zirconia beads with severely worn surfaces are inside the collecting box 210, and the zirconia beads with relatively intact surfaces remain inside the screening box 26. Then, the outer surface of the pull rod 215 is grasped to pull the frame rod 23 away from the ball mill frame 1, and the outer surface of the groove rod 34 is grasped to push the connecting rod 32 to slide on the inner wall of the rectangular groove 31 to control the push plate 33 to slide on the inner wall of the collecting box 210. The zirconia beads inside the collecting box 210 are pushed out by the push plate 33, and then the intact zirconia beads inside the screening box 26 are taken out to complete the screening.

[0032] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A ball mill automatic ball unloading and screening device, comprising a ball mill frame (1), characterized in that: A material barrel (4) is rotatably provided at the top of the ball mill frame (1), a screening mechanism (2) is provided on one side of the ball mill frame (1), the screening mechanism (2) comprising a sliding rod (22), one side of the sliding rod (22) being fixedly connected to two round rods (24), one end of the round rod (24) away from the sliding rod (22) being fixedly connected to a frame rod (23), the bottom end of the frame rod (23) being provided with a moving wheel, the outer surface of the round rod (24) being slidably connected to two rectangular rods (25), a screening box (26) being fixedly connected to one side of the two rectangular rods (25) close to each other, a plurality of through holes (27) being provided at the bottom end of the inner wall of the screening box (26), A collecting box (210) is fixedly connected to the bottom end; two electric push rods (29) are arranged on one side of the sliding rod (22); the output ends of the two electric push rods (29) are fixedly connected to one side of the rectangular rod (25) away from the sliding rod (22); springs (28) are arranged at both ends of the round rod (24); the two ends of the two springs (28) at both ends of the round rod (24) are respectively fixedly connected to one side of a rectangular rod (25) and one side of the sliding rod (22) and to one side of a rectangular rod (25) and one side of the frame rod (23); a sliding groove (21) is provided on the outer surface of the ball mill frame (1); and the two ends of the sliding rod (22) slide on the inner wall of the sliding groove (21).

2. The automatic ball unloading and screening device for a ball mill according to claim 1, characterized in that: The output end of the electric push rod (29) is fixedly connected to the inclined block (211), and one end of the inclined block (211) away from the electric push rod (29) is fixedly connected to one side of the rectangular rod (25).

3. The automatic ball unloading and screening device for a ball mill according to claim 2, characterized in that: Two reinforcing rods (212) are fixedly connected to one side of the frame rod (23), and one end of the two reinforcing rods (212) away from the frame rod (23) is fixedly connected to one side of the sliding rod (22).

4. The automatic ball unloading and screening device for a ball mill according to claim 3, characterized in that: A blocking rod (213) is fixedly connected to one side of the inner wall of the collection box (210), and the blocking rod (213) is located at the edge of the inner wall of the collection box (210).

5. The automatic ball unloading and screening device for a ball mill according to claim 4, characterized in that: A baffle (214) is fixedly connected to the top end of one of the rectangular rods (25), and the baffle (214) is located above the rectangular rod (25) and the sliding rod (22).

6. The automatic ball unloading and screening device for a ball mill according to claim 5, characterized in that: A pull rod (215) is fixedly connected to one side of the frame rod (23); the pull rod (215) has a U-shaped cross section.

7. The automatic ball unloading and screening device for a ball mill according to claim 6, characterized in that: An auxiliary mechanism (3) is arranged inside the collection box (210), and the auxiliary mechanism (3) comprises a push plate (33), and connecting rods (32) are fixedly connected to both ends of the push plate (33). Rectangular grooves (31) are provided on both sides of the outer surface of the collection box (210), and the outer surface of the connecting rod (32) slides on the inner wall of the rectangular groove (31), and the bottom end of the push plate (33) slides on the bottom end of the inner wall of the collection box (210).

8. The automatic ball unloading and screening device for a ball mill according to claim 7, characterized in that: One end of the connecting rod (32) is fixedly connected to a slot rod (34), and the outer surface of the slot rod (34) is provided with two grooves.

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