Ball milling device for metal powder production

Abstract

The invention discloses a metal powder production ball-milling device, and belongs to the technical field of ball-milling devices.The metal powder production ball-milling device comprises a bottom plate, a base mechanism is arranged at the top of the bottom plate, a ball-milling mechanism is arranged at the top of the base mechanism, and a connecting mechanism is arranged in the middle of the ball-milling mechanism; a driving mechanism for driving the ball-milling mechanism barrel to rotate is arranged at one end of the top of the base mechanism, a feeding mechanism for supplying materials to the ball-milling mechanism is arranged at the end, close to the driving mechanism, of the top of the base mechanism, and a screening mechanism is arranged at the end, away from the driving mechanism, of the top of the base mechanism. The machining barrel is divided into the two sets of half barrel bodies, the two sets of half barrel bodies are fixedly connected through the connecting mechanism, then automatic separation or combination is conducted through the base mechanism, maintenance personnel can conveniently overhaul and maintain the interior of the machining barrel, and after the machining barrel is divided into the two sets of half barrel bodies, the machining barrel is convenient to transport and store.

Description

Technical Field

[0001] The invention belongs to the technical field of ball milling devices, and in particular relates to a ball milling device for producing metal powder. Background Art

[0002] Ball mill is a key equipment for crushing materials after they are crushed. It consists of a horizontal cylinder, a hollow shaft for feeding and discharging materials, and a grinding head. The cylinder is a long cylinder with grinding bodies inside. The cylinder is made of steel plate and is fixed to the cylinder by a steel liner. The grinding bodies are generally steel balls and are loaded into the cylinder according to different diameters and a certain proportion. When the steel balls are brought to a certain height, they are thrown down due to their own gravity. The falling steel balls crush the materials in the cylinder like projectiles.

[0003] Existing ball mills usually directly use the steel balls inside to crush and grind metal materials. The metal flow may pass through the cylinder too quickly or too slowly, thereby affecting the efficiency and effect of the grinding. Moreover, when processing metal materials, it is impossible to automatically screen the metal materials at the outlet and then send them back into the cylinder of the ball mill to improve the grinding effect. It may also cause metal materials that have already met the grinding standards to be over-ground in the ball mill, increasing the occurrence of over-crushing. At the same time, the cylinder of the existing ball mill is often formed in one piece, which is not convenient for maintenance personnel to inspect and maintain the internal components of the cylinder, nor is it convenient for transportation and storage of the cylinder of the ball mill. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a ball milling device for producing metal powder.

[0005] The technical solution adopted to solve the above technical problems is: a metal powder production ball mill device, including a bottom plate, a base mechanism is provided on the top of the bottom plate, a ball mill mechanism is provided on the top of the base mechanism, and a connecting mechanism is provided at the middle position of the ball mill mechanism, one end of the top of the base mechanism is provided with a driving mechanism for driving the cylinder of the ball mill mechanism to rotate, a feeding mechanism for feeding the ball mill mechanism is provided at the end of the top of the base mechanism close to the driving mechanism, a screening mechanism is provided at the end of the top of the base mechanism away from the driving mechanism, and a return mechanism that cooperates with the feeding mechanism and the screening mechanism is provided on one side of the top of the base mechanism.

[0006] Furthermore, the base mechanism includes a fixed base and a movable base located at both ends of the top of the base plate, the bottom of the fixed base is fixedly connected to the top of the base plate through four groups of support frames, support wheels are evenly installed on the bottom of the movable base, two groups of hydraulic cylinders are installed at the middle position of one end of one group of support frames, and the output ends of the two groups of hydraulic cylinders are fixedly connected to one end of the movable base, and positioning slide rods are symmetrically installed on both sides of the movable base near one end of the fixed base, and the positioning slide rods pass through the three groups of support frames.

[0007] Through the above technical solution, when it is necessary to inspect and maintain the processing cylinder, turn to open the limit buckle, then control the two sets of hydraulic cylinders to extend, push the movable base to move, and the support wheels roll on the bottom plate to separate the two sets of semi-cylinders. The positioning slide rod can make the fixed base and the movable base precisely aligned when they move away from or close to each other, so that the two sets of semi-cylinders can be precisely aligned, and then you can enter the two sets of semi-cylinders for inspection and maintenance.

[0008] Furthermore, the ball mill mechanism includes a processing cylinder located above the fixed base and the movable base, the processing cylinder consists of two groups of semi-cylinders, inlet and outlet pipes connected to the interior of the processing cylinder are symmetrically installed at the center positions of the two ends of the processing cylinder, three groups of small bin doors are provided on the outside of the processing cylinder, the inner wall of the processing cylinder is evenly installed with lining plates by bolts, two groups of partition plates are installed inside the processing cylinder, the surfaces of the two groups of partition plates are evenly provided with grate holes, and the aperture sizes of the grate holes on the two groups of partition plates are different, a group of inlet and outlet pipes are respectively installed with a circular sieve plate and a spiral guide bar, the fixed base and the movable base are symmetrically installed at the end away from each other at the top, and the two groups of inlet and outlet pipes are respectively fixedly connected to the inner rings of the bearings of an adjacent group of bearing seats.

[0009] Through the above technical solution, two sets of partition plates are used to divide the interior of the processing cylinder into three chambers, and the crushed metal materials are preliminarily graded. Then, steel balls of different sizes are placed into the three groups of chambers separated by the partition plates through three sets of small doors. Then, during the rotation of the processing cylinder, the steel balls inside it continue to rise and then fall freely, crushing the metal materials. The liner can also protect the inner wall of the processing cylinder, so that the metal materials are separated by the grate screen on the partition plate when being processed in the processing cylinder. After passing through the circular screen plate, the metal materials leave the processing cylinder and enter a set of inlet and outlet pipes. The spiral guide bars inside the inlet and outlet pipes can help the metal materials to be stably discharged into the screen assembly for re-screening.

[0010] Furthermore, the driving mechanism includes an annular rack located at one end of the outer side of the processing cylinder, a driving gear meshing with the annular rack is installed on one side of the top of the fixed base, a servo motor is installed on the side of the top of the fixed base close to the driving gear, and the output end of the servo motor drives the driving gear to rotate through a reducer.

[0011] Through the above technical solution, the servo motor is controlled to cooperate with the reducer to drive the driving gear to rotate, and the driving gear and the annular rack are used to drive the processing cylinder to rotate at a uniform speed, so that the steel balls in the processing cylinder can continue to rise and then fall, crushing the metal materials.

[0012] Furthermore, the feeding mechanism includes a conveying pipe located above the fixed base, one end of the conveying pipe passes through an adjacent group of inlet and outlet pipes and extends into the processing cylinder, a first spiral feed paddle is provided inside the conveying pipe, a feed hopper is provided on the top of the conveying pipe, and a first drive motor is installed at one end of the conveying pipe to drive the first spiral feed paddle to rotate.

[0013] Through the above technical solution, the metal material to be processed is fed into the feed hopper, and the first drive motor is controlled to drive the first spiral feed paddle to feed the metal material in the conveying pipe into the processing cylinder, thereby realizing the function of automatic loading, and the unqualified metal material in the return pipe can also be sent back into the processing cylinder.

[0014] Furthermore, the screening mechanism includes an annular bin, first bearings are symmetrically installed at the edge positions of both ends of the annular bin, and a circular baffle is installed on the inner ring of the first bearing, and the two groups of circular baffles are fixedly connected by a connecting frame, a second bearing is installed at the center position of one group of circular baffles, one end of a group of inlet and outlet pipes passes through the second bearing and extends into the annular bin and is installed with a screen assembly through a connecting rod, an annular partition is installed at the middle position of the outer side of the screen assembly, a circle of temporary storage bins are evenly provided at both ends of the inner wall of the annular bin, and a discharge pipe deep into the annular bin is installed on the outer side of one group of circular baffles.

[0015] Through the above technical solution, the annular bin rotates together with the inlet and outlet pipes, so that the metal materials are screened again after passing through the inlet and outlet pipes and entering the screen assembly. The qualified metal materials and unqualified metal materials are respectively ground into the two circles of temporary storage bins in the annular bin. As the annular bin rotates, the temporary storage bins containing metal materials move to the discharge pipe and the feed port position and fall into the discharge pipe and the return pipe respectively under the influence of gravity. The qualified metal materials are discharged from the discharge pipe, and the unqualified metal materials are sent back into the processing cylinder.

[0016] Furthermore, the screen assembly includes a rotating ring, the annular partition is located in the middle position of the outer side of the rotating ring, and the first sieve hole and the second sieve hole are evenly arranged at both ends of the outer side of the rotating ring, and the aperture of the first sieve hole is smaller than the aperture of the second sieve hole.

[0017] Through the above technical solution, after the metal material enters the rotating ring from the inlet and outlet pipes, the rotating ring rotates along with the inlet and outlet pipes, and the first sieve hole first screens the metal material. The metal material that meets the standards passes through the first sieve hole, and the metal material that does not meet the standards passes through the second sieve hole, thereby realizing automatic screening of the metal material.

[0018] Furthermore, two sets of auxiliary wheels are installed on the bottom of the outer side of a group of circular baffles, and the bottoms of the auxiliary wheels are against the top of the bottom plate.

[0019] Through the above technical solution, when the mobile base moves away from the fixed base, the annular warehouse will also move with it. At this time, the auxiliary wheels on the circular baffle on one side of the annular warehouse can play a supporting role, and the connecting frame can also allow the two sets of circular baffles to remain fixed during the rotation of the annular warehouse.

[0020] Furthermore, the return mechanism includes a return pipe, which is fixedly connected to the top of the fixed base through a support rod, and a second spiral feed paddle is provided inside the return pipe. One end of the return pipe passes through the circular baffle and extends into the annular bin and is provided with a feed port. A discharge port is provided at the end of the outer side of the return pipe away from the feed port, and a second drive motor that drives the second spiral feed paddle to rotate is installed at the end of the return pipe close to the discharge port.

[0021] Through the above technical solution, after the unqualified metal materials in the annular bin enter the return pipe through the feed port, the second drive motor is controlled to drive the second spiral feed paddle to rotate, so that the metal materials in the return pipe are discharged from the discharge port into the feed hopper and then transported back to the first chamber in the processing cylinder, thereby realizing the automatic reflux of unqualified metal materials and ensuring the processing effect of the metal materials.

[0022] Furthermore, the connecting mechanism includes support rings, which are provided in two groups, and the two groups of support rings are respectively installed on the outsides of the two groups of semi-cylinders, and connecting rings are symmetrically installed on the ends of the outer sides of the two groups of semi-cylinders that are close to each other, and the surfaces of the two groups of connecting rings are symmetrically and evenly provided with sockets, six groups of connecting rods that cooperate with the sockets are staggeredly provided on the ends of the two groups of support rings that are close to each other, and six groups of limit buckles are evenly hinged on one end of one group of connecting rings, and guide wheels that cooperate with the support rings are symmetrically installed on both sides of the ends of the fixed base and the top of the movable base that are close to each other.

[0023] Through the above technical solution, when the two groups of semi-cylinders are close to each other and merged into a complete processing cylinder, the connecting rods on the two groups of support rings are inserted into the sockets on the two groups of connecting rings, and then the limit buckles are rotated to clamp the two groups of connecting rings in the limit buckles, thereby realizing the fixed connection of the two groups of semi-cylinders, and allowing the two groups of semi-cylinders to rotate synchronously. The guide wheels on the fixed base and the movable base cooperate with the support rings to ensure the stability of the entire processing cylinder during rotation, and also ensure that the two groups of semi-cylinders remain stable and not tilted after being separated, without the need for slings to assist in the stability of the semi-cylinders.

[0024] The beneficial effects of the present invention are as follows: (1) The present invention uses the cooperation of the ball mill mechanism and the driving mechanism to divide the interior of the processing cylinder into three chambers by using two sets of partition plates in the ball mill mechanism, and performs preliminary classification on the crushed metal materials. The coarser materials will be retained in the current chamber for further grinding, while the finer materials can enter the next chamber through the grate holes, thereby realizing the gradual refinement of the metal materials and improving the grinding efficiency and product quality; (2) After the metal materials are ground by the ball mill mechanism, the present invention uses the screening mechanism to screen the metal materials discharged by the ball mill mechanism, and discharges the metal materials that meet the grinding standards, thereby avoiding excessive grinding of the metal materials that have already met the grinding standards in the ball mill. The non-compliant metal materials are then transported back into the processing cylinder by the return mechanism in conjunction with the feeding mechanism, thereby increasing the grinding time of the metal materials. The metal material particles after the return flow enable the energy of the steel ball to be more effectively transferred to the metal materials in the processing cylinder. The metal materials are subjected to energy multiple times through the return flow, thereby improving the energy utilization rate and reducing energy waste. (3) The present invention divides the processing cylinder into two groups of half cylinders, which are fixedly connected by a connecting mechanism and then automatically separated or merged by a base mechanism, thereby facilitating maintenance personnel to inspect and maintain the interior of the processing cylinder. After the processing cylinder is split into two groups of half cylinders, it is convenient for it to be transported and stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a first perspective structural diagram of the present invention; Figure 2 This is a structural diagram from a second perspective of the present invention; Figure 3 It is a longitudinal cross-sectional schematic diagram of the present invention; Figure 4 This is a first-perspective structural diagram of the present invention after the two groups of semi-cylinders are separated; Figure 5 This is a second perspective structural diagram of the present invention after the two groups of half cylinders are separated; Figure 6 This is a third-view structural diagram of the present invention after the two groups of half cylinders are separated; Figure 7 It is a three-dimensional schematic diagram of the processing cylinder of the present invention; Figure 8This is a structural diagram of the base mechanism of the present invention from a first perspective; Figure 9 This is a structural diagram of the base mechanism of the present invention from a second perspective; Figure 10 It is a three-dimensional schematic diagram of the first group of half cylinders of the present invention; Figure 11 is a perspective schematic diagram of the second set of semi-cylinders of the present invention; Figure 12 It is a three-dimensional schematic diagram of two groups of partition boards of the present invention; Figure 13 It is a three-dimensional schematic diagram of the screening mechanism of the present invention; Figure 14 It is a first exploded schematic diagram of the screening mechanism of the present invention; Figure 15 is a second exploded schematic diagram of the screening mechanism of the present invention; Figure 16 is a three-dimensional schematic diagram of the screen assembly of the present invention; Figure 17 It is a three-dimensional schematic diagram of the return mechanism of the present invention; Figure 18 This invention Figure 3 Enlarged view of point A.

[0026] Figure numerals: 1. bottom plate; 2. base mechanism; 201. fixed base; 202. movable base; 203. support wheel; 204. support frame; 205. hydraulic cylinder; 206. positioning slide; 3. ball mill mechanism; 31. processing cylinder; 301. half cylinder; 302. inlet and outlet pipes; 303. small compartment door; 304. lining plate; 305. partition plate; 306. grate hole; 307. circular sieve plate; 308. spiral guide bar; 309. bearing seat; 4. driving mechanism; 401. annular rack; 402. driving gear; 403. reducer; 404. servo motor; 5. feeding mechanism; 501. conveying pipe; 502. first spiral feeding paddle; 503. feeding hopper ;504, first drive motor; 6, screening mechanism; 601, annular bin; 602, first bearing; 603, circular baffle; 604, second bearing; 605, screen assembly; 6051, rotating ring; 6052, first sieve hole; 6053, second sieve hole; 606, annular partition; 607, temporary storage bin; 608, discharge pipe; 609, connecting frame; 7, return mechanism; 701, return pipe; 702, second spiral feed paddle; 703, feed port; 704, discharge port; 705, second drive motor; 8, connecting mechanism; 801, support ring; 802, connecting ring; 803, limit buckle; 804, guide wheel; 805, connecting rod; 806, socket. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] like Figures 1-12 and Figure 18 As shown, a ball milling device for producing metal powder in this embodiment includes a bottom plate 1, a base mechanism 2 is provided on the top of the bottom plate 1, a ball milling mechanism 3 is provided on the top of the base mechanism 2, a driving mechanism 4 for driving the cylinder of the ball milling mechanism 3 to rotate is provided at one end of the top of the base mechanism 2, a feeding mechanism 5 for feeding the ball milling mechanism 3 is provided at one end of the top of the base mechanism 2 close to the driving mechanism 4, the base mechanism 2 includes a fixed base 201 and a movable base 202 located at both ends of the top of the bottom plate 1, the bottom of the fixed base 201 is fixedly connected to the top of the bottom plate 1 through four groups of support frames 204, the bottom of the movable base 202 is evenly installed with support wheels 203, and two groups of hydraulic cylinders are installed in the middle position of one end of a group of support frames 204. 205, and the output ends of the two groups of hydraulic cylinders 205 are fixedly connected to one end of the mobile base 202, and positioning slide bars 206 are symmetrically installed on both sides of the mobile base 202 near one end of the fixed base 201, and the positioning slide bars 206 pass through the three groups of support frames 204. When it is necessary to inspect and maintain the inside of the processing cylinder 31, the two groups of hydraulic cylinders 205 are controlled to extend to push the mobile base 202 to move, and the support wheels 203 roll on the bottom plate 1 to separate the two groups of semi-cylinders 301. The positioning slide bars 206 can make the fixed base 201 and the mobile base 202 accurately aligned when they move away from or approach each other, and also make the two groups of semi-cylinders 301 accurately aligned. After that, the two groups of semi-cylinders 301 can be entered for inspection and maintenance; The ball milling mechanism 3 includes a processing cylinder 31 located above the fixed base 201 and the movable base 202. The processing cylinder 31 is composed of two groups of half cylinders 301. Inlet and outlet pipes 302 connected to the interior of the processing cylinder 31 are symmetrically installed at the center positions of both ends of the processing cylinder 31. Three groups of small compartment doors 303 are provided on the outside of the processing cylinder 31. The inner wall of the processing cylinder 31 is evenly installed with lining plates 304 through bolts. Two groups of partition plates 305 are installed inside the processing cylinder 31. The surfaces of the two groups of partition plates 305 are evenly provided with grate holes 306, and the aperture sizes of the grate holes 306 on the two groups of partition plates 305 are different. A circular sieve plate 307 and a spiral guide bar 308 are respectively installed inside one group of inlet and outlet pipes 302. The fixed base 201 and the movable base 2 02, bearing seats 309 are symmetrically installed at one end of the top away from each other, and the two groups of inlet and outlet pipes 302 are respectively fixedly connected to the inner rings of the bearings of the adjacent group of bearing seats 309. The driving mechanism 4 includes an annular rack 401 located at one end of the outer side of the processing cylinder 31, and a driving gear 402 that is meshed with the annular rack 401 is installed on one side of the top of the fixed base 201. A servo motor 404 is installed on the side of the top of the fixed base 201 close to the driving gear 402, and the output end of the servo motor 404 drives the driving gear 402 to rotate through the reducer 403. The feeding mechanism 5 includes a conveying pipe 501 located above the fixed base 201, and one end of the conveying pipe 501 passes through an adjacent group of inlet and outlet pipes 302 and extends into the processing cylinder 31. The inner A first spiral feeding paddle 502 is provided at the top of the conveying pipe 501, and a feeding hopper 503 is provided at the top of the conveying pipe 501. A first driving motor 504 is installed at one end of the conveying pipe 501 to drive the first spiral feeding paddle 502 to rotate, and the metal material to be processed is fed into the feeding hopper 503. The first driving motor 504 is controlled to drive the first spiral feeding paddle 502 to feed the metal material in the conveying pipe 501 into the processing cylinder 31. Then, the servo motor 404 is controlled to cooperate with the reducer 403 to drive the driving gear 402 to rotate. The driving gear 402 and the annular rack 401 are used to drive the processing cylinder 31 to rotate at a uniform speed, so that the steel balls in the processing cylinder 31 can be continuously raised and then dropped to crush the metal materials. The two sets of partition plates 305 will process the The interior of the cylinder 31 is divided into three chambers, which are used to preliminarily classify the crushed metal materials. Then, steel balls of different sizes are placed into the three groups of chambers separated by the partition plate 305 through three groups of small chamber doors 303. During the rotation of the processing cylinder 31, the steel balls inside it continue to rise and then fall freely, crushing the metal materials. The lining plate 304 can also protect the inner wall of the processing cylinder 31, so that the metal materials are screened by the grate holes 306 on the partition plate 305 when being processed in the processing cylinder 31. After passing through the circular screen plate 307, the metal materials leave the processing cylinder 31 and enter a group of inlet and outlet pipes 302. The spiral guide bars 308 inside the inlet and outlet pipes 302 can help the metal materials to be stably discharged to the screen assembly 605 for re-screening.

[0029] like Figure 7-11 As shown, a connecting mechanism 8 is provided at the middle position of the ball mill mechanism 3 of this embodiment, and the connecting mechanism 8 includes a support ring 801. There are two groups of support rings 801, and the two groups of support rings 801 are respectively installed on the outside of the two groups of semi-cylinders 301. Connecting rings 802 are symmetrically installed at one end close to each other on the outside of the two groups of semi-cylinders 301, and the surfaces of the two groups of connecting rings 802 are symmetrically and evenly provided with sockets 806. Six groups of connecting rods 805 that cooperate with the sockets 806 are staggeredly provided at one end close to each other of the two groups of support rings 801. Six groups of limit buckles 803 are evenly hinged at one end of a group of connecting rings 802. The fixed base 201 and the movable base 202 are on both sides of the top close to each other. It is said that a guide wheel 804 is installed to cooperate with the support ring 801. When the two groups of semi-cylinders 301 are close to each other and merged into a complete processing cylinder 31, the connecting rods 805 on the two groups of support rings 801 are inserted into the sockets 806 on the two groups of connecting rings 802. Then the limit buckle 803 is rotated to clamp the two groups of connecting rings 802 in the limit buckle 803, thereby realizing the fixed connection of the two groups of semi-cylinders 301 and allowing the two groups of semi-cylinders 301 to rotate synchronously. The guide wheels 804 on the fixed base 201 and the movable base 202 cooperate with the support ring 801 to ensure the stability of the entire processing cylinder 31 during rotation, and also ensure that the two groups of semi-cylinders 301 remain stable and not tilted after being separated.

[0030] like Figure 13-Figure 17As shown, a screening mechanism 6 is provided at one end of the top of the base mechanism 2 away from the driving mechanism 4 in this embodiment, and a return mechanism 7 cooperating with the feeding mechanism 5 and the screening mechanism 6 is provided on one side of the top of the base mechanism 2. The screening mechanism 6 includes an annular bin 601, and first bearings 602 are symmetrically installed at the edge positions of both ends of the annular bin 601, and a circular baffle 603 is installed on the inner ring of the first bearing 602. The two groups of circular baffles 603 are fixedly connected by a connecting frame 609. A second bearing 604 is installed at the center position of one group of circular baffles 603. One end of a group of inlet and outlet pipes 302 passes through the second bearing 604 and extends into the annular bin 601 and is installed with a screen assembly 605 through a connecting rod. An annular shaped partition 606, a circle of temporary storage bins 607 are evenly arranged at both ends of the inner wall of the annular bin 601, a set of circular baffles 603 are installed on the outside of a discharge pipe 608 extending into the annular bin 601, the screen assembly 605 includes a rotating ring 6051, the annular partition 606 is located in the middle position of the outside of the rotating ring 6051, and the two ends of the outside of the rotating ring 6051 are evenly provided with a first sieve hole 6052 and a second sieve hole 6053, and the aperture of the first sieve hole 6052 is smaller than the aperture of the second sieve hole 6053. Two sets of auxiliary wheels are installed at the bottom of the outside of a set of circular baffles 603, and the bottom of the auxiliary wheels is against the top of the bottom plate 1. The return mechanism 7 includes a return pipe 701, and the return pipe 701 is fixedly connected to the top of the fixed base 201 through a support rod. Then, a second spiral feeding paddle 702 is provided inside the return pipe 701, one end of the return pipe 701 passes through the circular baffle 603 and extends into the annular bin 601 and is provided with a feed port 703, a discharge port 704 is provided on the outer side of the return pipe 701 away from the feed port 703, and a second drive motor 705 that drives the second spiral feeding paddle 702 to rotate is installed on the end of the return pipe 701 close to the discharge port 704. The annular bin 601 rotates together with the inlet and outlet pipe 302, so that after the metal material passes through the inlet and outlet pipe 302 and enters the rotating ring 6051, the rotating ring 6051 rotates together with the inlet and outlet pipe 302, and the first sieve hole 6052 first screens the metal material. The metal material that meets the standard passes through the first sieve hole 6052, and the metal material that does not meet the standard passes through the first sieve hole 6052. The metal materials that meet the standards pass through the second sieve hole 6053 and the two metal materials are placed in the two temporary storage bins 607 in the annular bin 601. As the annular bin 601 rotates, the temporary storage bin 607 containing the metal materials moves to the discharge pipe 608 and the feed port 703 and falls into the discharge pipe 608 and the return pipe 701 respectively under the influence of gravity. The qualified metal materials are discharged from the discharge pipe 608. For unqualified metal materials, the second drive motor 705 is controlled to drive the second spiral feed paddle 702 to rotate, so that the metal materials in the return pipe 701 are discharged from the discharge port 704 into the feed hopper 503 and then transported back to the first chamber in the processing cylinder 31, thereby realizing the automatic reflux of unqualified metal materials and ensuring the processing effect of the metal materials.

[0031] The working principle of this embodiment is as follows: first, the metal material to be processed is placed in the feed hopper 503, and then the first drive motor 504 is controlled to drive the first spiral feed paddle 502 to feed the metal material in the conveying pipe 501 into the processing cylinder 31, and then the servo motor 404 is controlled to cooperate with the reducer 403 to drive the driving gear 402 to rotate, and the driving gear 402 and the annular rack 401 are used to drive the processing cylinder 31 to rotate at a uniform speed. The processing cylinder 31 drives the screen assembly 605, the annular partition 606 and the annular bin 601 to rotate through the inlet and outlet pipes 302, and the partition plate 305 divides the interior of the processing cylinder 31 into three chambers, namely the first chamber, the second chamber and the third chamber, and the steel balls in the three groups of chambers are used to crush and grind the metal materials. The grate holes 306 on the two groups of partition plates 305 screen the crushed and ground metal materials. The metal materials in the third chamber pass through the inlet and outlet pipes 302. 02 enters the screen assembly 605 and is screened again. The qualified metal materials and unqualified metal materials are respectively ground into the two temporary storage bins 607 in the annular bin 601. Then the annular bin 601 cooperates with the temporary storage bin 607 to send the qualified metal materials into the discharge pipe 608 for discharge, and the unqualified metal materials enter the return pipe 701 from the feed port 703. Then the second drive motor 705 is controlled to drive the second spiral feed paddle 702 to rotate, so that the metal materials in the return pipe 701 are discharged from the discharge port 704 into the feed hopper 503 and then transported back to the first chamber in the processing cylinder 31. When it is necessary to inspect and maintain the processing cylinder 31, the limit buckle 803 is turned to open, and then the two groups of hydraulic cylinders 205 are controlled to extend, pushing the movable base 202 to move on the bottom plate 1, so that the two groups of semi-cylinders 301 are separated, and then the two groups of semi-cylinders 301 can be entered for inspection and maintenance.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A ball milling device for producing metal powder, comprising a bottom plate (1), characterized in that: A base mechanism (2) is provided on the top of the bottom plate (1), a ball mill mechanism (3) is provided on the top of the base mechanism (2), and a connecting mechanism (8) is provided at the middle position of the ball mill mechanism (3), a driving mechanism (4) for driving the cylinder of the ball mill mechanism (3) to rotate is provided at one end of the top of the base mechanism (2), a feeding mechanism (5) for feeding the ball mill mechanism (3) is provided at one end of the top of the base mechanism (2) close to the driving mechanism (4), a screening mechanism (6) is provided at one end of the top of the base mechanism (2) away from the driving mechanism (4), and a return mechanism (7) that cooperates with the feeding mechanism (5) and the screening mechanism (6) is provided on one side of the top of the base mechanism (2).

2. The metal powder production ball milling device according to claim 1, characterized in that: The base mechanism (2) comprises a fixed base (201) and a movable base (202) located at both ends of the top of the base plate (1); the bottom of the fixed base (201) is fixedly connected to the top of the base plate (1) through four groups of support frames (204); support wheels (203) are evenly installed on the bottom of the movable base (202); two groups of hydraulic cylinders (205) are installed at the middle position of one end of one group of support frames (204); and the output ends of the two groups of hydraulic cylinders (205) are fixedly connected to one end of the movable base (202); positioning slide bars (206) are symmetrically installed on both sides of the movable base (202) near one end of the fixed base (201); and the positioning slide bars (206) pass through the three groups of support frames (204).

3. The metal powder production ball milling device according to claim 2, characterized in that: The ball mill mechanism (3) comprises a processing cylinder (31) located above a fixed base (201) and a movable base (202). The processing cylinder (31) is composed of two groups of half cylinders (301). Inlet and outlet pipes (302) communicating with the interior of the processing cylinder (31) are symmetrically installed at the center positions of both ends of the processing cylinder (31). Three groups of small compartment doors (303) are provided on the outside of the processing cylinder (31). Lining plates (304) are evenly installed on the inner wall of the processing cylinder (31) by bolts. The interior of the processing cylinder (31) is installed with Two groups of partition plates (305) are provided, and the surfaces of the two groups of partition plates (305) are uniformly provided with grate holes (306), and the apertures of the grate holes (306) on the two groups of partition plates (305) are different. A circular sieve plate (307) and a spiral guide bar (308) are respectively installed inside one group of the inlet and outlet pipes (302). Bearing seats (309) are symmetrically installed at the ends of the tops of the fixed base (201) and the movable base (202) away from each other. The two groups of inlet and outlet pipes (302) are respectively fixedly connected to the inner rings of the bearings of the adjacent group of bearing seats (309).

4. The metal powder production ball milling device according to claim 3, characterized in that: The driving mechanism (4) comprises an annular rack (401) located at one end outside the processing cylinder (31); a driving gear (402) meshing with the annular rack (401) is installed on one side of the top of the fixed base (201); a servo motor (404) is installed on one side of the top of the fixed base (201) close to the driving gear (402); and the output end of the servo motor (404) drives the driving gear (402) to rotate through a speed reducer (403).

5. The metal powder production ball milling device according to claim 3, characterized in that: The feeding mechanism (5) comprises a conveying pipe (501) located above the fixed base (201), one end of the conveying pipe (501) passes through an adjacent set of inlet and outlet pipes (302) and extends into the processing cylinder (31), a first spiral feed paddle (502) is provided inside the conveying pipe (501), a feed hopper (503) is provided at the top of the conveying pipe (501), and a first driving motor (504) for driving the first spiral feed paddle (502) to rotate is installed at one end of the conveying pipe (501).

6. The metal powder production ball milling device according to claim 3, characterized in that: The screening mechanism (6) includes an annular bin (601), first bearings (602) are symmetrically installed at the edge positions of both ends of the annular bin (601), and a circular baffle (603) is installed on the inner ring of the first bearing (602), and the two groups of circular baffles (603) are fixedly connected by a connecting frame (609), a second bearing (604) is installed at the center position of one group of the circular baffles (603), one end of one group of the inlet and outlet pipes (302) passes through the second bearing (604) and extends into the annular bin (601) and is installed with a screen assembly (605) through a connecting rod, an annular partition (606) is installed at the middle position of the outer side of the screen assembly (605), a circle of temporary storage bins (607) are evenly arranged at both ends of the inner wall of the annular bin (601), and a discharge pipe (608) deep into the annular bin (601) is installed on the outer side of one group of the circular baffles (603).

7. The metal powder production ball milling device according to claim 6, characterized in that: The screen assembly (605) comprises a rotating ring (6051), the annular partition (606) is located at a middle position outside the rotating ring (6051), and the first sieve hole (6052) and the second sieve hole (6053) are evenly arranged at both ends of the outer side of the rotating ring (6051), and the aperture of the first sieve hole (6052) is smaller than the aperture of the second sieve hole (6053).

8. The metal powder production ball mill device according to claim 6, characterized in that: Two sets of auxiliary wheels are installed on the bottom of the outer side of a set of circular baffles (603), and the bottoms of the auxiliary wheels are against the top of the bottom plate (1).

9. The metal powder production ball milling device according to claim 6, characterized in that: The return mechanism (7) comprises a return pipe (701), the return pipe (701) being fixedly connected to the top of the fixed base (201) via a support rod, a second spiral feed paddle (702) being provided inside the return pipe (701), one end of the return pipe (701) passing through a circular baffle (603) and extending into the annular bin (601) and being provided with a feed port (703), a discharge port (704) being provided at an outer end of the return pipe (701) away from the feed port (703), and a second drive motor (705) for driving the second spiral feed paddle (702) to rotate being installed at an end of the return pipe (701) close to the discharge port (704).

10. The metal powder production ball mill device according to claim 3, characterized in that: The connecting mechanism (8) comprises a supporting ring (801), wherein two groups of the supporting ring (801) are provided, and the two groups of supporting rings (801) are respectively installed on the outside of the two groups of semi-cylinders (301), and connecting rings (802) are symmetrically installed at the ends of the outer sides of the two groups of semi-cylinders (301) close to each other, and the surfaces of the two groups of connecting rings (802) are symmetrically and evenly provided with plug holes (806), and six groups of connecting rods (805) that cooperate with the plug holes (806) are staggeredly provided at the ends of the two groups of supporting rings (801) close to each other, and six groups of limiting buckles (803) are evenly hinged at one end of one group of connecting rings (802), and guide wheels (804) that cooperate with the supporting rings (801) are symmetrically installed on both sides of the ends of the tops of the fixed base (201) and the movable base (202) close to each other.

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