Planetary ball mill

Abstract

The invention discloses a planetary ball mill, and relates to the technical field of ball mills, the planetary ball mill comprises a ball mill body, a rotating device is arranged in the ball mill body, the rotating device comprises a U-shaped frame, a rotating seat is fixedly arranged on the bottom surface of the U-shaped frame, and a positioning rod is fixedly arranged in the ball mill body; the rotating seat is rotatably arranged on the outer surface of the positioning rod in a sleeving manner, connecting plates are fixedly arranged on the top surface of the U-shaped frame, a rotating plate is rotatably arranged between the connecting plates, a ball milling device is rotatably arranged on the top surface of the rotating plate, a limiting ring is fixedly arranged on one side of the connecting plate, and a limiting groove is formed in the rotating plate; under the mutual cooperation of the two groups of shaking devices, the U-shaped frame drives the rotating seat to swing on the outer surface of the positioning rod, so that the ball milling tank body can be shaken left and right while rotating, the situation that materials are adhered to the bottom of the ball milling tank body to be accumulated and agglomerated after being ground and mixed to a certain fineness is avoided, and the grinding and mixing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ball mills, in particular to a planetary ball mill. Background Art

[0002] Planetary ball mill is an essential device for mixing, fine grinding, small sample preparation, nano material dispersion, new product development and small batch production of high-tech materials. This product is small in size, full in function and high in efficiency. It is an ideal device for obtaining micro-particle research samples in scientific research institutions, colleges and universities, and corporate laboratories. It can be equipped with a vacuum ball mill to grind samples under vacuum.

[0003] However, after using a planetary ball mill to grind and mix to a certain fineness, the materials will stick to the bottom of the ball mill and accumulate, and will clump, which will result in the inability to efficiently grind the objects to a specified size during operation. In addition, the collision and friction of the grinding balls in the ball mill will generate heat in the ball mill, which is often cooled naturally by stopping the mill and protecting the cover, thereby reducing the working efficiency during grinding. In view of the above problems, the inventors proposed a planetary ball mill to solve the above problems. Summary of the invention

[0004] In order to solve the problem that the bottom of the ball mill jar accumulates and agglomerates during grinding, thereby causing the object to be unable to be efficiently ground to a specified size during operation; the purpose of the present invention is to provide a planetary ball mill.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a planetary ball mill, comprising a ball mill body, a rotating device is arranged in the ball mill body, the rotating device comprises a U-shaped frame, a rotating seat is fixedly arranged on the bottom surface of the U-shaped frame, a positioning rod is fixedly arranged in the ball mill body, the rotating seat is rotatably sleeved on the outer surface of the positioning rod, a connecting plate is fixedly arranged on the top surface of the U-shaped frame, a rotating plate is rotatably arranged between the connecting plates, a ball milling device is rotatably arranged on the top surface of the rotating plate, a limiting ring is fixedly arranged on one side of the connecting plate, a limiting groove is arranged in the rotating plate, and the limiting ring is slidably arranged in the limiting groove; The ball mill body is equipped with a shaking device, and the shaking device includes a fixed frame, a fixed rod is fixedly provided in the fixed frame, a rotating rod is rotatably inserted in the fixed frame, a swing rod is fixedly sleeved on the outer surface of the rotating rod, a connecting rod is hingedly provided at the top end of the swing rod, a connecting block is hingedly provided at the top end of the connecting rod, and the other end of the connecting block is fixedly provided on the bottom surface of the U-shaped frame, a guide device is installed on one side of the fixed frame, and the guide device includes a shell, a third motor is installed in the shell, a rotating shaft is fixedly provided at the output end of the third motor, a first half-face gear is fixedly sleeved on the outer surface of the rotating shaft, a second gear is fixedly sleeved on the outer surface of the rotating rod, the first half-face gear is meshed with the second gear, and the shell A guide rod is rotatably connected to the body, a second half-gear is provided on the outer surface fixed sleeve of the guide rod, a driving wheel is provided on the outer surface fixed sleeve of the rotating shaft, a driven wheel is provided on the outer surface fixed sleeve of the guide rod, and a belt is connected between the driving wheel and the driven wheel. First, the material is put into the ball mill body, the ball mill body is placed in the mill seat, and then the cover plate is installed on the top surface of the ball mill body to seal it, and then the threaded rod is rotated so that the pressure plate fits and presses on the top surface of the cover plate, and the nut is rotated so that the nut fits on the top surface of the top plate. The control box and the protective cover are connected by hinges. When working, the ball mill body is covered to play a protective role, and then the first motor is turned on, so that the heat dissipation fan blows air to cool the working ball mill body; By turning on the second motor, the rotating plate drives the ball mill body to rotate forward, and the first gear is meshed with the third gear, so that the auxiliary rod drives the mill seat to rotate reversely, so that the ball mill body can rotate with the rotating plate and also reverse in the opposite direction, so that it can rotate in a planetary manner, and the grinding and mixing are more complete; By turning on the third motor, the rotating shaft rotates, and a belt is connected between the set driving wheel and the driven wheel to make the guide rod and the rotating shaft rotate synchronously, so that when the first half gear is meshed with the second gear, the rotating rod is driven to rotate forward, and when the first half gear is disengaged from the second gear, the second half gear can be meshed with the second gear, thereby driving the rotating rod to reverse again, thereby making the swing rod swing left and right, and making the connecting rod hinged and rotated in the swing rod, and at the same time, the other end of the connecting rod is hinged and rotated on the outer surface of the connecting block, so that under the mutual cooperation of the two sets of shaking devices, the U-shaped frame drives the rotating seat to swing on the outer surface of the positioning rod, and then can rotate the ball mill body while shaking left and right, so as to avoid the material from sticking to the bottom of the ball mill body and accumulating after being ground and mixed to a certain fineness, and agglomerating, thereby improving the grinding and mixing efficiency. The number of third motors is two, and they are synchronous motors, which can be turned on at the same time when starting.

[0006] Preferably, the ball mill device includes a grinding jar seat, a ball mill body is placed in the grinding jar seat, a cover plate is installed on the top surface of the ball mill body, a top plate is fixed through the grinding jar seat, a threaded rod is threaded through the top plate, a nut is threadedly sleeved on the outer surface of the threaded rod, a pressure plate is fixedly provided at the bottom end of the threaded rod, and the pressure plate is fitted on the top surface of the cover plate.

[0007] Preferably, an auxiliary rod is fixedly provided on the bottom surface of the grinding tank seat, and the auxiliary rod rotates and penetrates the rotating plate. The outer surface of the auxiliary rod is fixedly sleeved with a third gear, and a second motor is installed in the U-shaped frame. The outer surface of the output end of the second motor is fixedly sleeved with a first gear, and the first gear is meshed with the third gear.

[0008] Preferably, a control box is fixedly provided on the top surface of the ball mill body, a heat dissipation device is fixedly provided on the top surface of the ball mill body, the heat dissipation device includes a protective cover, the control box is hingedly connected to the protective cover, ventilation ducts are fixedly provided on both sides of the protective cover, a dustproof net is installed in the ventilation duct, a mounting plate is fixedly provided in the ventilation duct, a first motor is installed on one side of the mounting plate, and a cooling fan is fixedly provided at the output end of the first motor.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the two sets of shaking devices cooperate with each other, so that the U-shaped frame drives the rotating seat to swing on the outer surface of the positioning rod, and then the ball mill body can be rotated while shaking left and right, so as to prevent the material from sticking to the bottom of the ball mill body and accumulating after being ground and mixed to a certain fineness, and agglomerating, thereby improving the grinding and mixing efficiency; 2. In the present invention, the first motor is turned on, so that the cooling fan blows air to cool the working ball mill body, thereby preventing the grinding balls from colliding and rubbing inside the ball mill body to generate heat, eliminating the need to stop grinding, and improving the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of a partial cross-sectional structure of a ventilation pipe of the present invention; Figure 3 It is a partial cross-sectional structural schematic diagram of the ball mill body of the present invention; Figure 4 It is a schematic diagram of the structure of the rotating device of the present invention; Figure 5 It is a schematic diagram of the structure of the shaking device of the present invention; Figure 6 It is a schematic diagram of the structure of the ball milling device of the present invention; Figure 7 For the present invention Figure 5 Enlarged structural diagram at A in the middle.

[0012] In the figure: 1, ball mill body; 2, heat dissipation device; 3, rotating device; 4, shaking device; 5, guiding device; 6, ball mill device; 101, control box; 201, protective cover; 202, ventilation pipe; 203, dust screen; 204, mounting plate; 205, first motor; 206, cooling fan; 301, U-shaped frame; 302, connecting plate; 303, limiting ring; 304, rotating plate; 305, limiting groove; 306, second motor; 307, first gear; 308, positioning rod; 309, rotating seat; 401, fixed frame; 402, rotating Moving rod; 403, swing rod; 404, fixed rod; 405, connecting rod; 406, connecting block; 501, shell; 502, third motor; 503, rotating shaft; 504, first half gear; 505, second gear; 506, guide rod; 507, second half gear; 508, driving wheel; 509, driven wheel; 510, belt; 601, grinding jar seat; 602, ball mill body; 603, cover plate; 604, top plate; 605, threaded rod; 606, nut; 607, pressure plate; 608, auxiliary rod; 609, third gear. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] Example: Figure 1-7As shown, the present invention provides a planetary ball mill, including a ball mill body 1, a rotating device 3 is arranged in the ball mill body 1, the rotating device 3 includes a U-shaped frame 301, a rotating seat 309 is fixedly arranged on the bottom surface of the U-shaped frame 301, a positioning rod 308 is fixedly arranged in the ball mill body 1, the rotating seat 309 is rotatably sleeved on the outer surface of the positioning rod 308, a connecting plate 302 is fixedly arranged on the top surface of the U-shaped frame 301, a rotating plate 304 is rotatably arranged between the connecting plates 302, a ball milling device 6 is rotatably arranged on the top surface of the rotating plate 304, a limiting ring 303 is fixedly arranged on one side of the connecting plate 302, a limiting groove 305 is arranged in the rotating plate 304, the limiting ring 303 is slidably arranged in the limiting groove 305, and the limiting groove 305 and the limiting ring 303 cooperate with each other, so that the rotating plate 304 can stably rotate and drive the ball milling device 6 to rotate; The ball mill body 1 is provided with a shaking device 4, which includes a fixed frame 401, a fixed rod 404 is fixedly provided in the fixed frame 401, a rotating rod 402 is rotatably inserted in the fixed frame 401, a swing rod 403 is fixedly sleeved on the outer surface of the rotating rod 402, a connecting rod 405 is hingedly provided at the top end of the swing rod 403, a connecting block 406 is hingedly provided at the top end of the connecting rod 405, and the other end of the connecting block 406 is fixedly provided on the bottom surface of the U-shaped frame 301, a guide device 5 is installed on one side of the fixed frame 401, and the guide device 5 includes a shell 501, and a third motor is installed in the shell 501 502, the output end of the third motor 502 is fixed with a rotating shaft 503, the outer surface of the rotating shaft 503 is fixedly sleeved with a first half-face gear 504, the outer surface of the rotating rod 402 is fixedly sleeved with a second gear 505, the first half-face gear 504 is meshed with the second gear 505, a guide rod 506 is rotatably connected in the housing 501, the outer surface of the guide rod 506 is fixedly sleeved with a second half-face gear 507, the outer surface of the rotating shaft 503 is fixedly sleeved with a driving wheel 508, the outer surface of the guide rod 506 is fixedly sleeved with a driven wheel 509, and a transmission connection is provided between the driving wheel 508 and the driven wheel 509 The third motor 502 is connected to the guide rod 506 and the guide rod 506 is connected to the guide rod 506. The third motor 502 is turned on to rotate the shaft 503. The guide rod 506 and the shaft 503 are connected to the guide rod 506 through the transmission between the driving wheel 508 and the driven wheel 509. The guide rod 506 and the shaft 503 rotate synchronously. When the first half-face gear 504 is engaged with the second gear 505, the rotating rod 402 is driven to rotate forward. When the first half-face gear 504 is disengaged from the second gear 505, the second half-face gear 507 can be engaged with the second gear 505, and the rotating rod 402 is driven to reverse again, so that the swinging rod 403 swings left and right, and the connecting rod 40 5 is hinged and rotated in the swing rod 403, and the other end of the connecting rod 405 is hinged and rotated on the outer surface of the connecting block 406, so that under the mutual cooperation of the two sets of shaking devices 4, the U-shaped frame 301 drives the rotating seat 309 to swing on the outer surface of the positioning rod 308, so that the ball mill body 602 can be rotated and shaken left and right at the same time, so as to avoid the materials from sticking to the bottom of the ball mill body 602 and accumulating after being ground and mixed to a certain fineness, and agglomerating, thereby improving the grinding and mixing efficiency. The number of the third motors 502 is two, and they are synchronous motors, which can be turned on at the same time when starting.

[0015] The ball mill device 6 includes a grinding jar seat 601, in which a ball mill body 602 is placed, and a cover plate 603 is installed on the top surface of the ball mill body 602. A top plate 604 is fixed through the grinding jar seat 601, and a threaded rod 605 is threaded through the internal thread of the top plate 604. A nut 606 is threadedly sleeved on the outer surface of the threaded rod 605. A pressing plate 607 is fixedly provided at the bottom end of the threaded rod 605, and the pressing plate 607 is fitted on the top surface of the cover plate 603.

[0016] By adopting the above technical solution, the ball mill body 602 is placed in the mill seat 601, and then the cover plate 603 is installed on the top surface of the ball mill body 602 to seal it, and then the threaded rod 605 is rotated to make the pressure plate 607 fit and press on the top surface of the cover plate 603, and the nut 606 is rotated to make the nut 606 fit on the top surface of the top plate 604, so that the ball mill body 602 can be sealed, which plays a double protection role and avoids the material from being thrown out when the ball mill body 602 is rotating, causing material waste.

[0017] An auxiliary rod 608 is fixedly provided on the bottom surface of the grinding pot seat 601, and the auxiliary rod 608 rotates and penetrates the rotating plate 304. The outer surface of the auxiliary rod 608 is fixedly sleeved with a third gear 609. A second motor 306 is installed in the U-shaped frame 301, and the outer surface of the output end of the second motor 306 is fixedly sleeved with a first gear 307, and the first gear 307 is meshed with the third gear 609.

[0018] By adopting the above technical solution, by turning on the second motor 306, the rotating plate 304 drives the ball mill body 602 to rotate forward, and the first gear 307 is engaged with the third gear 609, so that the auxiliary rod 608 drives the grinding jar seat 601 to reverse, so that the ball mill body 602 can rotate with the rotating plate 304 while being able to reverse in the opposite direction, thereby being able to rotate in a planetary manner, and grinding and mixing are more thorough.

[0019] A control box 101 is fixedly provided on the top surface of the ball mill body 1. A heat dissipation device 2 is fixedly provided on the top surface of the ball mill body 1. The heat dissipation device 2 includes a protective cover 201. The control box 101 is hingedly connected to the protective cover 201. Ventilation pipes 202 are fixedly provided on both sides of the protective cover 201. A dustproof net 203 is installed in the ventilation pipe 202. A mounting plate 204 is fixedly provided in the ventilation pipe 202. A first motor 205 is installed on one side of the mounting plate 204. A cooling fan 206 is fixedly provided at the output end of the first motor 205.

[0020] By adopting the above technical solution, the control box 101 and the protective cover 201 are connected by hinges. When working, the ball mill body 1 is covered to play a protective role. Then the first motor 205 is turned on, so that the cooling fan 206 blows air to cool the working ball mill body 602, avoiding the grinding balls from colliding and rubbing in the ball mill body 602 to generate heat, and there is no need to stop grinding, thereby improving the grinding efficiency.

[0021] Working principle: firstly, put the material into the ball mill body 602, put the ball mill body 602 into the mill seat 601, then install the cover plate 603 on the top surface of the ball mill body 602, seal it, then rotate the threaded rod 605, so that the pressing plate 607 fits and presses on the top surface of the cover plate 603, and rotate the nut 606, so that the nut 606 fits on the top surface of the top plate 604, the control box 101 and the protective cover 201 are connected by hinges, and the ball mill body 1 is covered during operation to play a protective role, and then the first motor 205 is turned on, so that the cooling fan 206 blows air to cool down the working ball mill body 602; By turning on the second motor 306, the rotating plate 304 drives the ball mill body 602 to rotate forward, and the first gear 307 is meshed with the third gear 609, so that the auxiliary rod 608 drives the grinding jar seat 601 to rotate reversely, so that the ball mill body 602 can rotate with the rotating plate 304 and also reverse in the opposite direction, so that it can rotate in a planetary manner, and the grinding and mixing are more complete; By turning on the third motor 502, the rotating shaft 503 rotates, and the belt 510 is connected between the driving wheel 508 and the driven wheel 509, so that the guide rod 506 and the rotating shaft 503 rotate synchronously, so that when the first half-face gear 504 is meshed with the second gear 505, the rotating rod 402 is driven to rotate forward, and when the first half-face gear 504 is disengaged from the second gear 505, the second half-face gear 507 can be meshed with the second gear 505, and then the rotating rod 402 is driven to reverse again, so that the swinging rod 403 swings left and right, and the connecting rod 405 is hinged and rotated. The connecting rod 405 is hinged and rotated on the outer surface of the connecting block 406, so that the U-shaped frame 301 drives the rotating seat 309 to swing on the outer surface of the positioning rod 308 under the cooperation of the two sets of shaking devices 4, so that the ball mill body 602 can be rotated and shaken left and right at the same time, so as to avoid the material from sticking to the bottom of the ball mill body 602 and accumulating after being ground and mixed to a certain fineness, and agglomerating, thereby improving the grinding and mixing efficiency. The number of the third motor 502 is two, and they are synchronous motors, which can be turned on at the same time when starting.

[0022] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A planetary ball mill, comprising a ball mill body (1), characterized in that: The ball mill body (1) is provided with a rotating device (3), the rotating device (3) comprising a U-shaped frame (301), a rotating seat (309) being fixedly provided on the bottom surface of the U-shaped frame (301), a positioning rod (308) being fixedly provided on the ball mill body (1), the rotating seat (309) being rotatably sleeved on the outer surface of the positioning rod (308), a connecting plate (302) being fixedly provided on the top surface of the U-shaped frame (301), a rotating plate (304) being rotatably provided between the connecting plates (302), and a ball milling device (6) being rotatably provided on the top surface of the rotating plate (304); A shaking device (4) is installed in the ball mill body (1), and the shaking device (4) comprises a fixed frame (401), a fixed rod (404) is fixedly provided in the fixed frame (401), a rotating rod (402) is rotatably inserted in the fixed frame (401), a swing rod (403) is fixedly sleeved on the outer surface of the rotating rod (402), a connecting rod (405) is hingedly provided at the top end of the swing rod (403), a connecting block (406) is hingedly provided at the top end of the connecting rod (405), and the other end of the connecting block (406) is fixedly provided on the bottom surface of the U-shaped frame (301).

2. A planetary ball mill as claimed in claim 1, characterized in that: A guide device (5) is installed on one side of the fixed frame (401), and the guide device (5) comprises a shell (501), a third motor (502) is installed in the shell (501), a rotating shaft (503) is fixedly provided at the output end of the third motor (502), a first half-face gear (504) is fixedly provided on the outer surface of the rotating shaft (503), a second gear (505) is fixedly provided on the outer surface of the rotating rod (402), and the first half-face gear (504) is meshed with the second gear (505).

3. A planetary ball mill as claimed in claim 2, characterized in that: A guide rod (506) is rotatably connected inside the housing (501); a second half-face gear (507) is provided on the outer surface fixed sleeve of the guide rod (506); a driving wheel (508) is provided on the outer surface fixed sleeve of the rotating shaft (503); a driven wheel (509) is provided on the outer surface fixed sleeve of the guide rod (506); and a belt (510) is connected between the driving wheel (508) and the driven wheel (509) for transmission.

4. A planetary ball mill as claimed in claim 1, characterized in that: A limiting ring (303) is fixedly provided on one side of the connecting plate (302), a limiting groove (305) is provided in the rotating plate (304), and the limiting ring (303) is slidably disposed in the limiting groove (305).

5. A planetary ball mill as claimed in claim 1, characterized in that: The ball milling device (6) comprises a grinding jar seat (601), a ball milling jar body (602) is placed in the grinding jar seat (601), and a cover plate (603) is installed on the top surface of the ball milling jar body (602).

6. A planetary ball mill as claimed in claim 5, characterized in that: The grinding pot seat (601) is fixedly penetrated by the top plate (604), the top plate (604) has an internal thread that penetrates a threaded rod (605), a nut (606) is threadedly sleeved on the outer surface of the threaded rod (605), a pressing plate (607) is fixedly disposed at the bottom end of the threaded rod (605), and the pressing plate (607) is fitted on the top surface of the cover plate (603).

7. A planetary ball mill as claimed in claim 5, characterized in that: An auxiliary rod (608) is fixedly provided on the bottom surface of the grinding pot seat (601), and the auxiliary rod (608) rotates and penetrates the rotating plate (304). A third gear (609) is fixedly sleeved on the outer surface of the auxiliary rod (608).

8. A planetary ball mill as claimed in claim 7, characterized in that: A second motor (306) is installed in the U-shaped frame (301); a first gear (307) is fixedly sleeved on the outer surface of the output end of the second motor (306); and the first gear (307) is meshed with a third gear (609).

9. A planetary ball mill as claimed in claim 1, characterized in that: A control box (101) is fixedly provided on the top surface of the ball mill body (1), a heat dissipation device (2) is fixedly provided on the top surface of the ball mill body (1), the heat dissipation device (2) comprises a protective cover (201), and the control box (101) is hingedly connected to the protective cover (201).

10. A planetary ball mill as claimed in claim 9, characterized in that: Ventilation pipes (202) are fixedly provided on both sides of the protective cover (201), a dustproof net (203) is installed in the ventilation pipe (202), a mounting plate (204) is fixedly provided in the ventilation pipe (202), a first motor (205) is installed on one side of the mounting plate (204), and a heat dissipation fan (206) is fixedly provided at the output end of the first motor (205).

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