An orbital high-energy planetary ball mill

Abstract

The present invention discloses an orbital high-energy planetary ball mill, comprising an annular track, a trolley arranged on the annular track, and a revolution drive unit driving the trolley to move on the annular track. The trolley is provided with a ball mill and a rotation drive unit driving the ball mill to rotate. The rotation direction of the ball mill is opposite to the movement direction of the trolley on the annular track. The ball mill of the present invention is arranged on the trolley, and the trolley is driven to move on the annular track by the revolution drive unit to realize the revolution of the ball mill. At the same time, the rotation drive unit drives the ball mill to rotate to realize the self-rotation of the ball mill. To ensure the effectiveness of grinding the material in the ball mill, the revolution and rotation directions of the ball mill are opposite. According to the demand for the grinding workload of the ball mill, multiple trolleys can be arranged on the annular track or multiple ball mills can be arranged on a trolley to improve the grinding efficiency of the ball mill.

Description

Technical Field

[0001] This invention belongs to the technical field of high-energy planetary ball mills, specifically relating to a track-type high-energy planetary ball mill. Background Technology

[0002] Traditional ball mills are categorized into two types based on the energy level of the grinding effect produced by the grinding balls on the material: ordinary ball mills and high-energy ball mills. The working principle of a ball mill is to utilize the high-speed tumbling of grinding balls and materials within the grinding jar, generating strong shearing, impact, and crushing forces to achieve the purpose of crushing, grinding, dispersing, and emulsifying the materials. Ordinary ball mills are represented by the classic drum ball mill, while high-energy ball mills can deliver higher mechanical energy to the material being milled in a shorter time, enabling the material to achieve mechanical alloying (mechanical activation) in a shorter period, reducing oxidation and contamination, and even forming nanocrystalline or amorphous materials.

[0003] Commonly used high-energy ball mills include stirred, planetary, and vibratory types. Current high-energy planetary ball mills consist of several grinding jars mounted on a rotating disc, each rotating at high speed in the opposite direction to the disc's revolution. The maximum speed exceeds 1000 rpm. The grinding balls inside the jars, under the influence of inertia, create significant high-frequency impact and friction on the material, resulting in rapid fine grinding. This makes it a very popular high-energy ball mill. Currently, most high-energy planetary ball mills on the market are small to medium-sized, suitable for laboratory use. Large ball mills are mostly ordinary drum ball mills, which have low grinding efficiency and limited grinding energy, typically operating at speeds between 30 and 200 rpm. Therefore, providing a large-scale high-energy planetary ball mill has become a pressing issue in the industry. Summary of the Invention

[0004] To solve at least one of the above-mentioned technical problems, the present invention proposes an orbital high-energy planetary ball mill.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] The present invention provides a track-type high-energy planetary ball mill, including an annular track, a trolley disposed on the annular track, and a revolution drive unit for driving the trolley to move on the annular track. The trolley is provided with a grinding jar and a rotation drive unit for driving the grinding jar to rotate. The rotation direction of the grinding jar is opposite to the movement direction of the trolley on the annular track.

[0007] As a further improvement, the outer edge of the annular track extends outward to provide infeed and discharge tracks, the two ends of which are connected to the annular track via turnouts.

[0008] As a further improvement, the annular track includes an inner annular track and an outer annular track with a diameter larger than that of the inner annular track and concentric with the inner annular track. The trolley is equipped with an inner wheel and an outer wheel that respectively roll in cooperation with the inner annular track and the outer annular track.

[0009] As a further improvement, the inner wheel has an inner rim on its outer side, and the outer wheel has an outer rim on its inner side.

[0010] As a further improvement, the feed and discharge tracks include an arc-shaped inner rail and an arc-shaped outer rail with a diameter larger than the arc-shaped inner rail and concentric with the arc-shaped inner rail. The turnout includes an outer rail turnout and an inner rail turnout. The arc-shaped inner rail is connected to the annular inner rail through the inner rail turnout, and the arc-shaped outer rail is connected to the annular outer rail through the outer rail turnout.

[0011] As a further improvement, the outer rail turnout includes an outer rail tip and an outer rail wing end, and the inner rail turnout includes an inner rail tip and an inner rail wing end, with a switch section provided on the outer rail tip and the inner rail tip.

[0012] As a further improvement, the outer edge of the annular inner rail is provided with an inner guard rail, or the outer edge of the annular inner rail is provided with an inner guard rail and the inner edge of the annular outer rail is provided with an outer guard rail.

[0013] As a further improvement, the controller is included, photoelectric transmitters are installed on both the circular track and the feed / discharge track, and a photoelectric receiver is installed on the trolley to work with the photoelectric transmitters. The photoelectric receiver is connected to the controller, and the controller is connected to the switch section.

[0014] As a further improvement, the ball mill jar includes a rotating part and a ball mill jar body disposed on the rotating part, the self-rotation drive part is connected to the rotating part, and the ball mill jar body is provided with a feeding part and a discharging part.

[0015] As a further improvement, the controller is also connected to the revolution drive unit and the rotation drive unit respectively.

[0016] This invention provides a track-type high-energy planetary ball mill, comprising a circular track, a trolley mounted on the circular track, and a revolution drive unit that drives the trolley to move on the circular track. The trolley carries a grinding jar and a rotation drive unit that drives the grinding jar to rotate. The rotation direction of the grinding jar is opposite to the movement direction of the trolley on the circular track. In this invention, the grinding jar is mounted on the trolley. The revolution drive unit drives the trolley to move on the circular track, achieving the revolution of the grinding jar, while the rotation drive unit drives the grinding jar to rotate, achieving its own rotation. To ensure the effectiveness of material grinding within the grinding jar, the revolution and rotation directions are opposite. Depending on the grinding workload requirements, multiple trolleys or multiple grinding jars can be mounted on the circular track, improving the grinding efficiency of the grinding jar. Attached Figure Description

[0017] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the trolley of the present invention moving on a circular track.

[0019] Figure 2 This is a schematic diagram of the movement of the trolley on the feed and discharge tracks of the present invention.

[0020] In the diagram: 1, circular track; 2, trolley; 3, mill jar; 4, feed and discharge track; 5, switch; 11, inner circular track; 12, outer circular track; 41, arc-shaped inner track; 42, arc-shaped outer track; 51, inner track switch; 52, outer track switch; 61, inner guard rail; 62, outer guard rail; 511, inner track tip; 512, inner track wing end; 521, outer track tip; 522, outer track wing end. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0022] This invention relates to directional indications (such as inside, outside, etc.), for Figure 1 In this context, the area closer to the center is considered "inner," and the area farther from the center is considered "outer." If this specific orientation changes, the orientation indicator will also change accordingly.

[0023] Combination Figure 1 As shown, this embodiment of the invention provides a track-type high-energy planetary ball mill, including an annular track 1, a trolley 2 mounted on the annular track 1, and a revolution drive unit that drives the trolley 2 to move clockwise or counterclockwise on the annular track 1. The trolley 2 is equipped with a grinding jar 3 and a rotation drive unit that drives the grinding jar 3 to rotate. To ensure the effectiveness of material grinding within the grinding jar 3, the rotation direction of the grinding jar 3 is opposite to the movement direction of the trolley 2 on the annular track 1. Each trolley 2 can have one grinding jar 3, or multiple grinding jars 3 can be installed. When multiple grinding jars 3 are installed on each trolley 2, from a resource-saving perspective, each trolley 2 can have only one rotation drive unit, and the multiple grinding jars 3 can be connected by transmission. The ball mill jar 3 includes a rotating part and a ball mill jar body disposed on the rotating part. The rotation drive part is connected to the rotating part and drives the rotating part to rotate. The rotating part drives the ball mill jar body to rotate. The ball mill jar body is provided with a feeding part and a discharging part. The ball mill jar 3 can be disposed on the trolley 2 in a vertical, horizontal or other manner, but is not limited to this.

[0024] The revolution drive and the rotation drive can be powered by the same force, depending on actual needs, and are not specifically limited. In this embodiment, the revolution drive and the rotation drive are two different forces. According to the requirements of automated operation, a controller is also provided, connected to both the revolution drive and the rotation drive. The controller uses a programmable logic controller (PLC). The controller controls the rotational speed of the output shaft of the revolution drive to accelerate, decelerate, start, or stop the trolley 2 on the circular track 1; the controller controls the rotational speed of the output shaft of the rotation drive to accelerate, decelerate, start, or stop the ball mill jar 3. During normal operation, the ratio of the output shaft speeds of the revolution drive and the rotation drive is between 1:1.2 and 1:2.5, allowing the material inside the ball mill jar 3 to be effectively ground under the interaction of the centrifugal forces generated by the revolution and rotation.

[0025] As a further preferred embodiment, a feed / discharge track 4 extends outward from the outer edge of the annular track 1, and both ends of the feed / discharge track 4 are connected to the annular track 1 via turnouts 5. When multiple trolleys 2 are provided on the annular track 1, when the grinding jar 3 on one of the trolleys 2 needs to be fed or discharged, it enters the feed / discharge track 4 through the turnout 5 without stopping the operation of other trolleys 2 on the annular track 1, thus avoiding affecting the normal grinding of the grinding jars 3 on other trolleys 2 and improving grinding efficiency.

[0026] As a further preferred embodiment, the annular track 1 can be a single track or a double track. In this embodiment, the annular track 1 is a double track, including an inner annular track 11 and an outer annular track 12 with a diameter larger than the inner annular track 11 and concentric with it. The trolley 2 is equipped with inner wheels and outer wheels that roll in cooperation with the inner annular track 11 and the outer annular track 12, respectively. The inner and outer wheels of the trolley 2 move more smoothly on the inner annular track 11 and the outer annular track 12. To facilitate the high-speed operation of the trolley 2, the height of the outer annular track 12 is higher than that of the inner annular track 11, and the diameter of the outer wheel is larger than that of the inner wheel.

[0027] As a further preferred embodiment, the inner wheel has an inner flange on its outer side and the outer wheel has an outer flange on its inner side, which prevents the inner and outer wheels from derailing during operation. The inner and outer flanges can also prevent the inner and outer wheels from moving laterally when changing lanes or turning, making it easier for the trolley 2 to change lanes from the circular track 1 to the feed / discharge track 4 or from the feed / discharge track 4 to the circular track 1, or to turn more smoothly on the circular track 1 or the feed / discharge track 4.

[0028] In a further preferred embodiment, the feed / discharge track 4 includes an arc-shaped inner rail 41 and an arc-shaped outer rail 42 with a diameter larger than and concentric with the arc-shaped inner rail 41. The turnout 5 includes an inner rail turnout 51 and an outer rail turnout 52. The arc-shaped inner rail 41 is connected to the annular inner rail 11 via the inner rail turnout 51, and the arc-shaped outer rail 42 is connected to the annular outer rail 12 via the outer rail turnout 52. The two ends of the arc-shaped inner rail 41 are connected to the annular inner rail 11 to form the frog center. The outer rail turnout 52 includes an outer rail tip 521 and an outer rail wing end 522, and the inner rail turnout 51 includes an inner rail tip 511 and an inner rail wing end 512. The fork center of the fork is located between the inner rail wing end 512 and the outer rail wing end 522. The inner rail tip 511 and the outer rail tip 521 are provided with a switch part. The controller is connected to the switch part to control the closure between the inner rail tip 511 and the annular inner rail 11 and the closure between the outer rail tip 521 and the annular outer rail 12.

[0029] The switching section in this embodiment includes a switching mechanism connected to a controller. When the ball mill jar 3 on the trolley 2 needs to be fed or discharged, such as... Figure 2 As shown, the controller controls the switch mechanism to separate the outer rail tip 521 on the annular outer rail 12 by a distance slightly wider than the outer wheel rim, while simultaneously closing the inner rail tip 511 on the annular inner rail 11. The trolley 2 moves from the annular inner rail 11 and annular outer rail 12, passing the inner rail tip 511 and outer rail tip 521, into the arc-shaped inner rail 41 and arc-shaped outer rail 42, where it feeds or discharges the ball mill jar 3. After feeding or discharging, the trolley 2 then moves from the arc-shaped inner rail 41 and arc-shaped outer rail 42, passing the inner rail tip 511 and outer rail tip 521, into the annular inner rail 11 and annular outer rail 12. If the trolley 2 needs to continue moving on the annular inner rail 11 and annular outer rail 12, such as... Figure 1 As shown, the controller controls the switch mechanism to close the outer rail tip 521 on the annular outer rail 12, while simultaneously separating the inner rail tip 511 on the annular inner rail 11 by a distance slightly wider than the inner wheel flange. The trolley 2 can then move between the annular inner rail 11 and the annular outer rail 12. It should be noted that when the trolley 2 changes lanes from the annular track 1 to the infeed / discharge track 4 for feeding or discharging materials, generally only one trolley 2 is used. If the infeed / discharge track 4 needs to accommodate multiple trolleys simultaneously, the decision must be made considering whether it will affect the safe operation of other trolleys 2 on the annular track 1.

[0030] As a further preferred embodiment, the control of the switching unit and the stopping position of the trolley on the feed and discharge tracks can be achieved by installing photoelectric transmitters on the circular track 1 and the feed and discharge tracks 4, and installing photoelectric receivers on the trolley 2 to receive information from the photoelectric transmitters. The photoelectric receivers are connected to the controller 4, and the controller is connected to the switching unit. The controller 4 controls the operation of the switching unit according to the photoelectric transmitter information received by the photoelectric receiver, so as to realize the track change of the trolley 2 between the circular track 1 and the feed and discharge tracks 4, and controls the stopping position of the trolley 2 on the feed and discharge tracks 4 according to the photoelectric transmitter information received by the photoelectric receiver. The controller 4 is also connected to the revolution drive unit and the rotation drive unit respectively to control the revolution and rotation start and stop of the ball mill jar 3.

[0031] As a further preferred implementation, combined with Figure 1 and Figure 2 As shown, an inner guard rail 61 is provided along the outer edge of the annular inner rail 11. To save on the cost of using the inner guard rail 61, it is optimal to place the inner guard rail 61 at the outer edge of the annular inner rail 11 at the inner rail wing end 512. The inner guard rail 61 is used to limit the lateral displacement of the wheels when the trolley 2 passes through the outer rail switch 52 at high speed. An outer guard rail 62 is provided along the inner edge of the annular outer rail 12. To save on the cost of using the outer guard rail 62, it is optimal to place the outer guard rail 62 at the outer edge of the annular outer rail 12 at the outer rail wing end 522. The outer guard rail 62 is used to limit the lateral displacement of the wheels when the trolley 2 passes through the inner rail switch 51 at high speed. It should be noted that the inner guard rail 61 and the outer guard rail 62 can be provided simultaneously, or only the inner guard rail 61 can be provided. The inner guard rail 61 can ensure that the trolley 2 can travel smoothly and at high speed on the annular track 1.

[0032] The foregoing description sets forth many specific details to provide a full understanding of the invention. However, the invention may be practiced in other ways different from those described herein, and therefore should not be construed as limiting the scope of protection of the invention.

[0033] In summary, although the present invention has listed the above preferred embodiments, it should be noted that various changes and modifications can be made by those skilled in the art, and such changes and modifications should be included within the scope of protection of the present invention unless they deviate from the scope of the present invention.

Claims

1. An orbital high-energy planetary ball mill, characterized in that: The invention comprises a circular track (1), a trolley (2) arranged on the circular track (1), and a revolving driving part driving the trolley (2) to move on the circular track (1); the trolley (2) is provided with a ball mill (3) and a rotating driving part driving the ball mill (3) to rotate; the rotation direction of the ball mill (3) is opposite to the movement direction of the trolley (2) on the circular track (1); a feeding and discharging track (4) is extended outward from the outer edge of the circular track (1); both ends of the feeding and discharging track (4) are connected to the circular track (1) via a switch (5); the circular track (1) comprises a circular inner rail (11) and a circular outer rail (11) having a diameter greater than that of the circular inner rail (11) and connected to the circular outer rail (11); The invention relates to a material feeding and discharging track (4) comprising an arc-shaped inner rail (41) and an arc-shaped outer rail (42) having a diameter greater than that of the arc-shaped inner rail (41) and being concentric with the arc-shaped inner rail (41); the turnout (5) comprising an outer rail turnout (52) and an inner rail turnout (51); the arc-shaped inner rail (41) is connected to the annular inner rail (11) via the inner rail turnout (51); the arc-shaped outer rail (42) is connected to the annular outer rail (12) via the outer rail turnout (52); the ball mill (3) comprises a rotating part and a ball mill body arranged on the rotating part; the self-rotating driving part is connected to the rotating part; and the ball mill body is provided with a feeding part and a discharging part.

2. An orbital high-energy planetary ball mill as claimed in claim 1, characterized in that: The trolley (2) is provided with inner wheels and outer wheels which respectively roll with the annular inner rail (11) and the annular outer rail (12).

3. An orbital high-energy planetary ball mill as claimed in claim 2, characterized in that: An inner wheel rim is disposed on the outer side of the inner wheel, and an outer wheel rim is disposed on the inner side of the outer wheel.

4. An orbital high-energy planetary ball mill as claimed in claim 3, characterized in that: The outer rail switch (52) comprises an outer rail tip (521) and an outer rail wing end (522), and the inner rail switch (51) comprises an inner rail tip (511) and an inner rail wing end (512). Switching parts are provided on the outer rail tip (521) and the inner rail tip (511).

5. An orbital high-energy planetary ball mill as claimed in claim 4, characterized in that: The outer edge of the annular inner rail (11) is provided with an inner guard rail (61), or the outer edge of the annular inner rail (11) is provided with an inner guard rail (61) and the inner edge of the annular outer rail (12) is provided with an outer guard rail (62).

6. An orbital high-energy planetary ball mill as claimed in claim 5, characterized in that: It comprises a controller, the annular track (1) and the feeding and discharging track (4) are both equipped with photoelectric transmitters, the trolley (2) is equipped with a photoelectric receiver used in conjunction with the photoelectric transmitter, the photoelectric receiver is connected to the controller, and the controller is connected to the switch part.

7. An orbital high-energy planetary ball mill as claimed in claim 6, characterized in that: The controller is also connected to the revolution drive unit and the rotation drive unit respectively.

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