Self-balancing high-flux planetary ball mill

Abstract

The invention relates to the technical field of ball mills, in particular to a self-balancing high-flux planetary ball mill which comprises a shell, a central shaft, a turntable and two balancing mechanisms. The center shaft is arranged in the shell in the vertical direction and can rotate automatically. The rotating disc and the center shaft are coaxially arranged, and the rotating disc can rotate along with the center shaft. And two ball milling tanks are eccentrically arranged on the turntable. The balance mechanism can drive the ball milling tank to move along the radial direction of the turntable. According to the self-balancing high-flux planetary ball mill, by arranging the center shaft, the rotating disc and the two balancing mechanisms, when the center shaft drives the rotating disc to rotate, the two ball milling tanks rotate along with the rotating disc in a revolution mode and rotate synchronously, and materials in the ball milling tanks are ground. And when the centrifugal forces of the two ball milling tanks are unbalanced, the balance mechanism can be dynamically adjusted in the revolution and rotation processes of the two ball milling tanks, the centrifugal forces are automatically balanced, and the vibration of the planetary ball mill is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of ball mills, and particularly relates to a self-balancing high-throughput planetary ball mill. Background Art

[0002] By arranging two or more ball milling jars, a high-throughput planetary ball mill can make the grinding medium (such as grinding balls) generate strong movements and collisions in the grinding cavity, thereby achieving efficient grinding and crushing of materials. Its main working principle is that the ball milling jar rotates both around its own axis and around a central axis. In this way, the rotational speed of the ball milling jar around the central axis can break through the limit of the critical speed of an ordinary ball mill, driving the grinding balls to perform complex movements, impacting and grinding the materials, so that the materials are squeezed and broken.

[0003] During the operation of the ball mill, the overall ball milling jar is in an eccentric state. Even when the number of ball milling jars can reach a balanced arrangement, two ball milling jars need to be symmetrically placed and the weights on both sides need to be consistent. Otherwise, the centrifugal force generated by the rotation of the ball milling jars during the grinding process will cause the centrifugal forces of the two ball milling jars on the planetary ball mill to be unbalanced, resulting in vibration of the ball mill and shortening the service life of the equipment. However, due to the large number of variables that need to be adjusted as a whole (the mass of the ball milling jar, the mass of the grinding medium, and the mass of the material to be ground), manual adjustment is required before use, which is not only time-consuming and laborious, but also difficult to control, and has an adverse impact on both the grinding efficiency and grinding quality of the ball mill. Summary of the Invention

[0004] The present invention provides a self-balancing high-throughput planetary ball mill to solve the problem that the existing ball mill cannot automatically balance the centrifugal forces on both sides of the planetary ball mill, which has an adverse impact on both the grinding efficiency and grinding quality of the ball mill.

[0005] A self-balancing high-throughput planetary ball mill of the present invention adopts the following technical solutions: A self-balancing high-throughput planetary ball mill includes a housing, a central shaft, a turntable, and two balancing mechanisms; the central shaft is arranged vertically in the housing and can rotate around its own axis; the turntable is coaxially arranged with the central shaft and can rotate with the central shaft; two ball milling jars are eccentrically arranged on the turntable, and the ball milling jars can rotate with the turntable and can rotate around their own axes, and the ball milling jars can move along the radial direction of the turntable; the two balancing mechanisms are arranged in one-to-one correspondence with the two ball milling jars, and the balancing mechanism can drive the corresponding ball milling jar to move along the radial direction of the turntable; in the initial state, the two ball milling jars and the two balancing mechanisms are symmetrically arranged with respect to the vertical axis of the central shaft. When the centrifugal forces of the two ball milling jars are unbalanced, one of the ball milling jars can move along the radial direction of the turntable away from the central shaft, and drive the other ball milling jar to move along the radial direction of the turntable towards the central shaft. At this time, the balancing mechanism corresponding to the ball milling jar moving along the radial direction of the turntable towards the central shaft can act, and make this ball milling jar move along the radial direction of the turntable away from the central shaft.

[0006] Further, the balancing mechanism includes a balance shaft and a sleeve. The balance shaft is arranged vertically and eccentrically on the central axis. The balance shaft can rotate with the central axis and can also rotate self - rotatably. The sleeve is arranged along the radial direction of the turntable and is connected to the corresponding ball mill tank. A screw is arranged inside the sleeve, and the screw is in spiral cooperation with the sleeve. The sleeve, the screw, and the balance shaft are arranged in sequence along the radial direction of the turntable, and the sleeve is located on the side of the screw away from the balance shaft along the radial direction of the turntable. A first conical wheel is arranged on the screw, and a second conical wheel is arranged on the balance shaft. In the initial state, there is a spacing between the first conical wheel and the second conical wheel. The movement of the screw along the radial direction of the turntable can make the first conical wheel engage with the second conical wheel.

[0007] Further, two collar rings are arranged at the lower end of the turntable. The two collar rings are arranged corresponding to the two screws one by one. Each collar ring is coaxial with its corresponding screw. A rotating ring is sleeved inside each collar ring, and the rotating ring is in keyway cooperation with its corresponding screw. And the resistance of the screw to rotate is greater than the resistance of its sliding.

[0008] Further, it also includes a transmission shaft. The central axis is a hollow shaft. The transmission shaft passes through the central axis vertically. The upper end of the transmission shaft is in rotational cooperation with the turntable, and the lower end of the transmission shaft is fixedly connected inside the housing. A first gear is arranged coaxially on the transmission shaft, and a second gear is arranged coaxially and fixedly on the balance shaft. The second gear meshes with the first gear.

[0009] Further, the sleeves between the two balancing mechanisms are connected by a synchronizing rod.

[0010] Further, the second conical wheel is detachably mounted on the balance shaft.

[0011] Further, the lower end of the ball mill tank is connected to a rotating shaft. A vertically - penetrating chute is opened on the turntable. The chute is arranged along the radial direction of the turntable. A vertically - penetrating through - hole is opened on the sleeve. The rotating shaft is arranged vertically and passes through the chute and the through - hole in sequence.

[0012] Further, it also includes a sun gear, two intermediate gears, and two planet gears. The sun gear is fixedly arranged inside the housing and is coaxial with the central axis. The two intermediate gears are both rotatably mounted on the turntable through intermediate shafts, and the two intermediate gears are simultaneously meshed with the sun gear. The planet gears, the intermediate gears, and the rotating shafts are arranged corresponding to each other one by one. The planet gear is coaxially arranged and fixedly connected to its corresponding rotating shaft, and the planet gear is meshed with its corresponding intermediate gear.

[0013] Further, two arc - shaped grooves are opened on the turntable. The two arc - shaped grooves are both coaxial with the central axis. The intermediate shaft passes through the arc - shaped groove and is in sliding cooperation with the arc - shaped groove. A connecting rod is connected between the intermediate shaft and its corresponding rotating shaft.

[0014] Further, it further includes a first pulley and a second pulley; both the first pulley and the second pulley are arranged vertically in the outer shell. The first pulley can rotate around its own axis, the second pulley is connected to the first pulley through a transmission belt, and the central shaft is coaxially arranged and fixedly connected with the second pulley.

[0015] The beneficial effects of the present invention are as follows: In a self-balancing high-throughput planetary ball mill of the present invention, by setting a central shaft, a turntable and two balancing mechanisms, when the central shaft drives the turntable to rotate, the two ball milling tanks will revolve and rotate synchronously with the turntable and rotate self-synchronously to grind the materials in the ball milling tanks. And when the centrifugal forces of the two ball milling tanks are unbalanced, the balancing mechanism can perform dynamic adjustment during the revolution and self-rotation of the two ball milling tanks to automatically balance the centrifugal force and reduce the vibration of the planetary ball mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a self-balancing high-throughput planetary ball mill of the present invention; Figure 2 It is a cross-sectional view of a partial structure of an embodiment of a self-balancing high-throughput planetary ball mill of the present invention; Figure 3 It is Figure 2 an enlarged view of part A in Figure 4 It is Figure 3 an enlarged view of part B in Figure 5 It is a schematic diagram of the planetary mechanism of an embodiment of a self-balancing high-throughput planetary ball mill of the present invention; Figure 6 It is a top view of the turntable of an embodiment of a self-balancing high-throughput planetary ball mill of the present invention; Figure 7 It is a schematic diagram of a partial structure of an embodiment of a self-balancing high-throughput planetary ball mill of the present invention; Figure 8 It is a front view of the turntable of an embodiment of a self-balancing high-throughput planetary ball mill of the present invention; Figure 9 It is Figure 8 an enlarged view of part C in

[0018] In the figure: 100, outer shell; 101, protective cover; 110, motor; 120, first pulley; 130, second pulley; 140, transmission belt; 200, central shaft; 210, transmission shaft; 211, first gear; 300, turntable; 310, collar; 320, rotating ring; 330, chute; 340, arc chute; 350, snap ring; 400, balancing mechanism; 410, balance shaft; 411, second conical pulley; 412, second gear; 420, sleeve; 430, screw; 431, first conical pulley; 500, ball milling tank; 510, bolt; 520, rotating shaft; 600, synchronizing rod; 710, sun gear; 720, intermediate gear; 730, planet gear; 740, bearing; 750, intermediate shaft; 760, connecting rod. Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] An embodiment of a self-balancing high-throughput planetary ball mill of the present invention is as Figures 1 to 9 shown.

[0021] A self-balancing high-throughput planetary ball mill includes an outer shell 100, a central shaft 200, a turntable 300, and two balancing mechanisms 400. The central shaft 200 is arranged vertically in the outer shell 100 and can rotate self-rotationally. The turntable 300 is coaxially arranged with the central shaft 200 and can rotate with the central shaft 200. Two ball milling tanks 500 are eccentrically arranged on the turntable 300. The ball milling tanks 500 can rotate with the turntable 300 and can rotate self-rotationally, and the ball milling tanks 500 can move along the radial direction of the turntable 300. Specifically, a protective cover 101 is rotatably arranged on the outer shell 100. The protective cover 101 can cover the ball milling tanks 500, and the protective cover 101 is used to protect the ball milling tanks 500.

[0022] The two balancing mechanisms 400 are arranged in one-to-one correspondence with the two ball milling tanks 500. The balancing mechanism 400 can drive the corresponding ball milling tank 500 to move along the radial direction of the turntable 300. In the initial state, the two balancing mechanisms 400 are symmetrically arranged about the vertical axis of the central shaft 200, and in the initial state, the two ball milling tanks 500 are symmetrically arranged about the vertical axis of the central shaft 200.

[0023] When the central shaft 200 drives the turntable 300 to rotate, the two ball mills 500 will revolve with the turntable 300 and rotate synchronously to grind the materials in the ball mills 500. When the centrifugal forces of the two ball mills 500 are unbalanced, one of the ball mills 500 can move away from the central shaft 200 along the radial direction of the turntable 300 and drive the other ball mill 500 to move closer to the central shaft 200 along the radial direction of the turntable 300. At this time, the balancing mechanism 400 correspondingly arranged with the ball mill 500 moving closer to the central shaft 200 along the radial direction of the turntable 300 can act and move the ball mill 500 away from the central shaft 200 along the radial direction of the turntable 300, gradually making the centrifugal forces of the two ball mills 500 tend to be balanced. That is, referring to Figure 2 and Figure 3 As shown, when the centrifugal forces of the two ball mills 500 are unbalanced and the whole moves to the right, that is, at this time, the ball mill 500 on the right moves away from the central shaft 200 along the radial direction of the turntable 300 and drives the ball mill 500 on the left to move closer to the central shaft 200 along the radial direction of the turntable 300, driving the balancing mechanism 400 correspondingly arranged with the ball mill 500 on the left to act, and making the ball mill 500 on the left move away from the central shaft 200 along the radial direction of the turntable 300 through the balancing mechanism 400, gradually making the centrifugal forces of the two ball mills 500 tend to be balanced. During the revolution and rotation of the two ball mills 500, dynamic adjustment is carried out, and the balancing mechanism 400 is used to automatically balance the centrifugal forces of the two ball mills 500, reducing the vibration of the planetary ball mill.

[0024] In a further embodiment, the balancing mechanism 400 includes a balance shaft 410 and a sleeve 420. The balance shaft 410 is arranged vertically and eccentrically on the central shaft 200. The upper and lower ends of the balance shaft 410 are respectively inserted into the turntable 300 and the central shaft 200. The balance shaft 410 can rotate with the central shaft 200 and can rotate by itself. The sleeve 420 is arranged along the radial direction of the turntable 300 and is connected to the corresponding ball mill 500. A screw 430 is arranged in the sleeve 420. The screw 430 is in screw fit with the sleeve 420. The sleeve 420, the screw 430 and the balance shaft 410 are arranged in sequence along the radial direction of the turntable 300. The sleeve 420 is located on the side of the screw 430 away from the balance shaft 410 in the radial direction of the turntable 300. One end of the screw 430 is provided with a first conical wheel 431, and a second conical wheel 411 is arranged on the balance shaft 410. In the initial state, there is a spacing between the first conical wheel 431 and the second conical wheel 411. The movement of the screw 430 along the radial direction of the turntable 300 can make the first conical wheel 431 engage with the second conical wheel 411. Both the first conical wheel 431 and the second conical wheel 411 are friction wheels.

[0025] In a further embodiment, two collar rings 310 are provided at the lower end of the turntable 300. The two collar rings 310 are arranged in one-to-one correspondence with the two screw rods 430. Each collar ring 310 is coaxial with the corresponding screw rod 430. In the initial state, there is a gap between the collar ring 310 and the first conical wheel 431 corresponding to it, leaving a margin for the sliding of the screw rod 430. A rotating ring 320 is sleeved in each collar ring 310. The rotating ring 320 is in keyway fit with the corresponding screw rod 430, so that the screw rod 430 can rotate synchronously with the rotating ring 320, and the screw rod 430 can move relative to the rotating ring 320 in the radial direction of the turntable 300. And the resistance of the screw rod 430 to rotate is greater than the resistance of its sliding.

[0026] Specifically, the contact surface between the rotating ring 320 and the collar ring 310 is rough, and the contact surface between the rotating ring 320 and the corresponding screw rod 430 is smooth.

[0027] By making the contact surface between the rotating ring 320 and the collar ring 310 rough, the resistance to the rotation of the rotating ring 320 relative to the collar ring 310 is increased, so that the resistance of the screw rod 430 to rotate is greater than the resistance of its sliding, and thus the screw rod 430 is easier to move compared to rotation.

[0028] Further, both ends of the rotating ring 320 in the axial direction are connected to the collar ring 310 through snap rings 350. The rotating ring 320 is limited by setting the snap rings 350.

[0029] In a further embodiment, the sleeves 420 of the two balancing mechanisms 400 are connected by a synchronizing rod 600. Two synchronizing rods 600 are provided.

[0030] See Figure 2 and Figure 3 As shown, when the two ball mills 500 as a whole shift to the right, that is, at this time, the ball mill 500 on the right moves away from the central axis 200 in the radial direction of the turntable 300. The sleeve 420 on the right will drive the sleeve 420 on the left to move through the synchronizing rod 600, so that the ball mill 500 on the left moves closer to the central axis 200 in the radial direction of the turntable 300.

[0031] In a further embodiment, a self-balancing high-throughput planetary ball mill further includes a transmission shaft 210. The central axis 200 is a hollow shaft. The transmission shaft 210 passes through the central axis 200 in the vertical direction. The upper end of the transmission shaft 210 is rotationally matched with the turntable 300, and the lower end of the transmission shaft 210 is fixedly connected in the housing 100. A first gear 211 is provided on the transmission shaft 210. A second gear 412 is coaxially and fixedly arranged on the balancing shaft 410. The second gear 412 meshes with the first gear 211.

[0032] By providing a transmission shaft 210, a first gear 211 is provided on the transmission shaft 210, and a second gear 412 is provided on the balance shaft 410, enabling the balance shaft 410 to rotate around its own axis while revolving around the center axis.

[0033] Specifically, the lower end of the ball milling tank 500 is connected to a rotating shaft 520 by bolts 510. A vertically penetrating chute 330 is formed in the turntable 300. The chute 330 is arranged along the radial direction of the turntable 300. A vertically penetrating through-hole is formed in the sleeve 420. The rotating shaft 520 is arranged vertically and sequentially passes through the chute 330 and the through-hole. The rotating shaft 520 abuts against two inner wall surfaces of the chute 330 in the direction of rotation around the central axis 200. Thus, when the turntable 300 revolves around the vertical axis of the central axis 200, the ball milling tank 500 can be driven to revolve around the vertical axis of the central axis 200 through the rotating shaft 520.

[0034] In another possible embodiment, the first conical pulley 431 is detachably mounted on the screw 430, and the second conical pulley 411 is detachably mounted on the balance shaft 410. Alternatively, the first conical pulley 431 is fixedly connected to the screw 430.

[0035] When the first conical pulley 431 and the second conical pulley 411 are engaged and the first conical pulley 431 is worn, the first conical pulley 431 can be replaced separately. Or, when the first conical pulley 431 is fixedly connected to the screw 430, the screw 430 and the first conical pulley 431 are replaced synchronously. When the second conical pulley 411 is worn, the second conical pulley 411 can be replaced separately.

[0036] In a further embodiment, a self-balancing high-throughput planetary ball mill further includes a planetary mechanism for driving the two ball milling tanks 500 to rotate around their own axes. The planetary mechanism includes a sun gear 710, two idler gears 720, and two planet gears 730. The sun gear 710 is fixedly arranged in the housing 100 through a mounting bracket and is coaxial with the central axis 200. A bearing 740 is arranged between the mounting bracket and the central axis 200. The two idler gears 720 are both rotatably mounted below the turntable 300 through idler shafts 750, and the two idler gears 720 are simultaneously engaged with the sun gear 710. The planet gears 730, the idler gears 720, and the rotating shafts 520 are arranged in one-to-one correspondence. The planet gears 730 are coaxially arranged and fixedly connected to their corresponding rotating shafts 520, and the planet gears 730 are engaged with their corresponding idler gears 720.

[0037] By setting up a planetary mechanism, when the turntable 300 drives the two ball mills 500 to revolve around the vertical axis of the central shaft 200, the two idler wheels 720 will also revolve around the vertical axis of the central shaft 200 along with the turntable 300 and mesh with the sun gear 710. Under the promotion of the sun gear 710, the idler wheels 720 rotate self - sufficiently. The self - rotation of the idler wheels 720 will drive the planet gears 730 meshed with them to rotate self - sufficiently, and finally realize the self - rotation of the ball mills 500. The setting of the idler wheels 720 can make the self - rotation direction of the planet gears 730 opposite to the revolution direction.

[0038] In a further embodiment, two arc grooves 340 are formed on the turntable 300. The two arc grooves 340 are both coaxially arranged with the central shaft 200. The transition shaft 750 passes through the arc groove 340 and is in sliding fit with the arc groove 340. A connecting rod 760 is connected between the transition shaft 750 and the corresponding rotating shaft 520.

[0039] Specifically, the connecting rod 760 includes a first rotating ring, a rod body and a second rotating ring. The first rotating ring, the rod body and the second rotating ring are fixedly connected and integrally formed. The first rotating ring is in rotational fit with the rotating shaft 520, and the second rotating ring is in rotational fit with the transition shaft 750.

[0040] By setting the arc groove 340, when the rotating shaft 520 moves in the sliding groove 330, the rotating shaft 520 will pull the transition shaft 750 through the connecting rod 760, making the transition shaft 750 slide in the arc groove 340 to ensure the meshing between the idler wheel 720 and the planet gear 730.

[0041] In a further embodiment, a self - balancing high - throughput planetary ball mill further includes a first pulley 120 and a second pulley 130. The first pulley 120 and the second pulley 130 are both arranged vertically in the housing 100. The diameter of the first pulley 120 is smaller than that of the second pulley 130. A motor 110 is arranged in the housing 100. The first pulley 120 is fixedly installed on the output shaft of the motor 110, enabling the first pulley 120 to rotate around its own axis. The second pulley 130 is connected to the first pulley 120 through a transmission belt 140, so that the second pulley 130 can rotate around its own axis. The central shaft 200 is coaxially arranged and fixedly connected with the second pulley 130.

[0042] In this embodiment, by setting the first pulley 120, during use, starting the motor 110 drives the first pulley 120 to rotate. The first pulley 120 will drive the second pulley 130 to rotate through the transmission belt 140 and drive the central shaft 200 to rotate.

[0043] Combined with the above - mentioned embodiments, the specific working process is as follows: During use, start the motor 110 to drive the first pulley 120 to rotate. The first pulley 120 will drive the second pulley 130 to rotate through the transmission belt 140 and drive the central shaft 200 to rotate.

[0044] When the central shaft 200 rotates, the central shaft 200 will drive the two balance shafts 410 to revolve around the vertical axis of the central shaft 200. At this time, the first gear 211 and the second gear 412 are engaged, enabling the two balance shafts 410 to rotate around their own axes while revolving. And the two balance shafts 410 will push the turntable 300 to rotate, and drive the ball mill tank 500 to revolve around the vertical axis of the central shaft 200 through the turntable 300.

[0045] See Figure 2 and Figure 3 As shown, when the two ball mill tanks 500 as a whole shift to the right, that is, at this time, the ball mill tank 500 on the right moves away from the central shaft 200 along the radial direction of the turntable 300. The sleeve 420 on the right will drive the sleeve 420 on the left through the synchronizing rod 600, so that the ball mill tank 500 on the left moves closer to the central shaft 200 along the radial direction of the turntable 300. Since the resistance of the screw 430 to rotate is greater than its sliding resistance, when the sleeve 420 moves, the screw 430 in screw-threaded fit with the sleeve 420 will not rotate, that is, the sleeve 420 will move synchronously with the screw 430.

[0046] Until the first conical wheel 431 on the left abuts against the correspondingly arranged second conical wheel 411, and the resultant centrifugal force is loaded on the conical surface of the second conical wheel 411 on the left. At this time, the balance shaft 410 on the left will drive the screw 430 to rotate around its own axis, and the screw 430 will drive the ball mill tank 500 on the left to move leftward through the sleeve 420.

[0047] When the sleeve 420 on the left pulls the ball milling tank 500 on the left to move leftward, the ball milling tank 500 on the right will be driven to move synchronously through the synchronizing rod 600. The sleeve 420 on the right will also drive the screw rod 430 thereon to move toward the side close to the right balance shaft 410. It should be particularly noted that although the contact surfaces where the rotating ring 320 and the collar 310 contact each other are rough, providing resistance for the rotation of the screw rod 430, this resistance is only to enable the screw rod 430 to move synchronously with the sleeve 420 when the screw rod 430 is driven by the sleeve 420. This resistance itself is not large. Thus, if the second conical wheel 431 on the right screw rod 430 abuts against the first conical wheel 411 on the corresponding balance shaft 410, although the rotation of this balance shaft 410 has a tendency to cause the right screw rod 430 to rotate and drive the right sleeve 420 to move rightward, since the force acting on the conical surface of the left second conical wheel 411 is greater than the force acting on the conical surface of the right second conical wheel 411, the force for the left sleeve 420 to move leftward is greater. As a whole, the two ball milling tanks 500 will still move leftward, and slippage will occur between the second conical wheel 431 on the right screw rod 430 and the first conical wheel 411 on the corresponding balance shaft 410. The left sleeve 420 and the screw rod 430 gradually become longer, causing the force acting on the conical surface of the second conical wheel 411 to gradually become smaller until the centrifugal force reaches equilibrium.

[0048] After the centrifugal force reaches equilibrium, although the first conical wheel 411 still contacts the second conical wheel 431 at this time, the force between them is relatively small at this time, and they remain relatively stationary as a whole.

[0049] The next time it is used, it will be adjusted continuously according to the offset degree of the two ball milling tanks 500 as a whole. That is, if the two ball milling tanks 500 as a whole shift to the left, then at this time the resultant centrifugal force is loaded on the conical surface of the second conical wheel 411 located on the right. The right screw rod 430 will cause the right sleeve 420 corresponding to it to move rightward, and through the synchronizing rod 600, it will pull the sleeve 420 on the left to move rightward. Since the second conical wheel 431 on the screw rod 430 on the left abuts against the first conical wheel 411 on the left balance shaft 410 and cannot move further, at this time the screw rod 430 on the left can only rotate and retract until the centrifugal force reaches equilibrium again.

[0050] If the two ball milling tanks 500 as a whole still shift to the right, then at this time the resultant centrifugal force is loaded on the conical surface of the second conical wheel 411 located on the left. The left screw rod 430 will cause the left sleeve 420 corresponding to it to continue to move leftward, and through the synchronizing rod 600, it will pull the sleeve 420 on the right to move rightward. During this process, the screw rod 430 on the right cannot move further. Therefore, at this time the screw rod 430 on the right can only rotate and retract until the centrifugal force reaches equilibrium again.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A self-balancing high-throughput planetary ball mill, characterized in that: It includes a housing, a central shaft, a turntable and two balancing mechanisms; the central shaft is arranged vertically within the housing and can rotate self - axially; the turntable is coaxially arranged with the central shaft and can rotate along with the central shaft; two ball - milling tanks are eccentrically arranged on the turntable, the ball - milling tanks can rotate along with the turntable and can rotate self - axially, and the ball - milling tanks can move in the radial direction of the turntable; the two balancing mechanisms are arranged in one - to - one correspondence with the two ball - milling tanks, and the balancing mechanism can drive the corresponding ball - milling tank to move in the radial direction of the turntable; in the initial state, the two ball - milling tanks and the two balancing mechanisms are symmetrically arranged about the vertical axis of the central shaft. When the centrifugal forces of the two ball - milling tanks are unbalanced, one of the ball - milling tanks can move away from the central axis in the radial direction of the turntable, and drive the other ball - milling tank to move closer to the central axis in the radial direction of the turntable. And at this time, the balancing mechanism corresponding to the ball - milling tank that moves closer to the central axis in the radial direction of the turntable can act, and make this ball - milling tank move away from the central axis in the radial direction of the turntable.

2. The self-balancing high-throughput planetary ball mill according to claim 1, characterized in that: The balancing mechanism includes a balance shaft and a sleeve. The balance shaft is arranged vertically and eccentrically on the central shaft. The balance shaft can rotate along with the central shaft and can rotate self - axially; the sleeve is arranged in the radial direction of the turntable and is connected to the corresponding ball - milling tank. A screw rod is arranged in the sleeve, and the screw rod is in screw fit with the sleeve. The sleeve, the screw rod and the balance shaft are arranged in sequence in the radial direction of the turntable, and the sleeve is located on the side of the screw rod away from the balance shaft in the radial direction of the turntable; a first conical wheel is arranged on the screw rod, and a second conical wheel is arranged on the balance shaft. In the initial state, there is a spacing between the first conical wheel and the second conical wheel, and the screw rod moving in the radial direction of the turntable can make the first conical wheel engage with the second conical wheel.

3. The self-balancing high-throughput planetary ball mill according to claim 2, characterized in that: Two collar rings are arranged at the lower end of the turntable, and the two collar rings are arranged in one - to - one correspondence with the two screw rods. Each collar ring is coaxial with the corresponding screw rod, and a rotating ring is sleeved in each collar ring. The rotating ring is in key - slot fit with the corresponding screw rod, and the resistance of the screw rod to rotate is greater than its resistance to slide.

4. The self-balancing high-throughput planetary ball mill according to claim 2, characterized in that: It also includes a transmission shaft. The central shaft is a hollow shaft. The transmission shaft passes through the central shaft vertically. The upper end of the transmission shaft is in rotational fit with the turntable, and the lower end of the transmission shaft is fixedly connected within the housing; a first gear is coaxially arranged on the transmission shaft, and a second gear is coaxially and fixedly arranged on the balance shaft. The second gear meshes with the first gear.

5. The self-balancing high-throughput planetary ball mill according to claim 2, characterized in that: The sleeves of the two balancing mechanisms are connected by a synchronizing rod.

6. The self-balancing high-throughput planetary ball mill according to claim 2, characterized in that: The second conical wheel is detachably mounted on the balance shaft.

7. The self-balancing high-throughput planetary ball mill according to claim 2, wherein: The lower end of the ball - milling tank is connected to a rotating shaft. A vertically - penetrating chute is opened on the turntable, and the chute is arranged in the radial direction of the turntable. A vertically - penetrating through - hole is opened on the sleeve; the rotating shaft is arranged vertically and passes through the chute and the through - hole in sequence.

8. The self-balancing high-throughput planetary ball mill according to claim 7, characterized in that: It also includes a sun gear, two intermediate gears and two planet gears; the sun gear is fixedly arranged within the housing and is coaxial with the central shaft; the two intermediate gears are both rotatably mounted on the turntable through intermediate shafts, and the two intermediate gears are simultaneously meshed with the sun gear; the planet gears, the intermediate gears and the rotating shafts are arranged in one - to - one correspondence. The planet gear is coaxially arranged and fixedly connected with the corresponding rotating shaft, and the planet gear meshes with the corresponding intermediate gear.

9. The self-balancing high-throughput planetary ball mill according to claim 8, characterized in that: Two arc grooves are provided on the turntable, and both arc grooves are coaxially arranged with the central axis. The transition shaft passes through the arc groove and is in sliding fit with the arc groove, and a connecting rod is connected between the transition shaft and the corresponding rotating shaft.

10. The self-balancing high-throughput planetary ball mill according to claim 1, characterized in that: It further includes a first pulley and a second pulley; the first pulley and the second pulley are both arranged vertically in the housing. The first pulley can rotate around its own axis, the second pulley is connected to the first pulley through a transmission belt, and the central axis is coaxially arranged and fixedly connected with the second pulley.

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