A high-energy planetary ball mill device for ultrafine tungsten alloy powder preparation

Abstract

This invention discloses a high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder, relating to the technical field of planetary ball mills. It includes a base, a guiding assembly, a positioning unit, a protective mechanism, and a controller. A swinging mechanism is installed on the side surface of the base, and a planetary ball mill drive mechanism is installed at the drive end of the swinging mechanism. The guiding assembly is disposed between the base and the planetary ball mill drive mechanism, the positioning unit is installed at the bottom of the planetary ball mill drive mechanism, and the protective mechanism is installed at the top of the planetary ball mill drive mechanism. This invention solves the problem that planetary ball mills only rely on planetary motion coordinated by revolution and rotation for grinding, lacking the function of oscillating and shaking the tungsten alloy in the grinding jar 71. This leads to insufficient grinding of the tungsten alloy raw material, reducing powder refinement efficiency, and the tungsten alloy raw material is easily oxidized upon contact with air during grinding, reducing the purity of the ultrafine powder.

Description

Technical Field

[0001] This invention relates to the technical field of planetary ball mills, specifically a high-energy planetary ball mill device for the preparation of ultrafine tungsten alloy powder. Background Technology

[0002] Ultrafine tungsten alloy powder typically refers to an alloy powder system with a particle size D50 ≤ 1 μm, using tungsten as the matrix (content ≥ 80%) and adding metallic elements such as Ni, Fe, Co, and Cu. Based on particle size, it can be further divided into submicron (0.1-1 μm) and nano (< 0.1 μm) grades. Currently, industrial applications mainly focus on submicron grades, while nano grades are still in the transition stage from laboratory to industrialization. In the current planetary ball milling process for tungsten alloy powder preparation, existing planetary ball mills only utilize planetary motion in conjunction with revolution and rotation, lacking the function of shaking and oscillating the tungsten alloy in the grinding jar 71. This easily leads to insufficient grinding of the tungsten alloy raw material, reducing powder refinement efficiency. Simultaneously, the tungsten alloy raw material is easily oxidized upon contact with air during grinding, reducing the purity of the ultrafine powder. To address these issues, a high-energy planetary ball milling device for preparing ultrafine tungsten alloy powder is provided. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the above-mentioned high-energy planetary ball mill device for the preparation of ultrafine tungsten alloy powder, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a high-energy planetary ball milling device for the preparation of ultrafine tungsten alloy powder.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: it includes: a base, a swing mechanism is installed on the side surface of the base, and a planetary ball mill drive mechanism is installed at the drive end of the swing mechanism; A guide assembly is disposed between the base and the planetary ball mill drive mechanism, and the guide assembly is used to limit the movement of the planetary ball mill drive mechanism. A positioning unit is installed at the bottom of the planetary ball mill drive mechanism, and the positioning unit is used for positioning the planetary ball mill drive mechanism when it is not in use. A protective mechanism is installed on top of the planetary ball mill drive mechanism. The protective mechanism contains a ball milling mechanism installed on top of the drive end of the planetary ball mill drive mechanism. The ball milling mechanism is used for the preparation of ultrafine tungsten alloy powder by ball milling. A negative pressure mechanism is installed on the top surface of the ball mill mechanism, and the negative pressure mechanism is used to keep the inside of the ball mill mechanism under negative pressure. A controller is mounted on the top left end of the planetary ball mill drive mechanism.

[0007] As a preferred embodiment of the high-energy planetary ball milling device for preparing ultrafine tungsten alloy powder according to the present invention, the swing mechanism includes: a limiting frame installed on the left and right opposite side surfaces of the base, a hydraulic cylinder installed on the rear side surface of the limiting frame, a rack fixedly installed on the output end of the hydraulic cylinder, a guide portion fixedly installed on the bottom of the rack, an arc-shaped toothed plate meshing with the top of the rack, and a fixed shaft fixedly installed on the top of the arc-shaped toothed plate.

[0008] As a preferred embodiment of the high-energy planetary ball milling device for preparing ultrafine tungsten alloy powder according to the present invention, the guide part includes a guide seat and a guide column. The guide seat is slidably connected in a guide cavity opened in the inner wall of the bottom side of the limiting frame, and the guide column installed in the guide cavity penetrates the side surface of the guide seat.

[0009] As a preferred embodiment of the high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention, the planetary ball mill drive mechanism includes a base, a drive assembly, a linkage assembly, a rotating plate, and a placement shell. The base is fixedly installed at the end of a fixed shaft. The drive assembly is installed inside the base. The drive assembly is connected to the rotating plate through the linkage assembly. The placement shell is installed on the top of the rotating plate. The drive assembly includes a servo motor, a drive wheel, a drive belt, and a driven wheel. The servo motor is mounted on the surface of the base. The drive wheel is mounted on the surface of the output shaft of the servo motor. The drive wheel is rotatably connected to the driven wheel through the drive belt. A rotating shaft is installed inside the driven wheel, and a rotating plate is fixedly mounted on the top of the rotating shaft. The linkage assembly includes a first gear and a second gear. The first gear is mounted on the surface of the rotating shaft. The second gear is meshed with the outer side of the first gear. A rotating rod is installed inside the second gear. The top end of the rotating rod passes through the rotating plate, and a placement shell is fixedly installed on the top end of the rotating rod. A limiting ring that rotates and fits against the rotating plate is installed on the surface of the rotating rod.

[0010] As a preferred embodiment of the high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention, the protective mechanism includes: a fixed shell fixedly installed on the top rear side of the base, a flip shell hinged to the top surface of the fixed shell, a cooling fan installed on the rear side of the fixed shell for heat dissipation of the grinding mechanism, a locking seat fixedly installed on the front side of the base, and a locking bolt penetrating the locking seat, the locking bolt being used to fix and lock the flip shell to the base after it is closed.

[0011] As a preferred embodiment of the high-energy planetary ball milling device for preparing ultrafine tungsten alloy powder according to the present invention, the guiding component includes an arc-shaped guide groove formed on the top side surface of the base, an arc-shaped guide rod fixedly installed on the inner wall of the arc-shaped guide groove, and a guide slide connected in the arc-shaped guide groove. The arc-shaped guide rod passes through the side surface of the guide slide, and the top side of the guide slide is fixedly connected to the bottom surface of the machine base; The number of arc-shaped guide grooves is provided in multiples, and the multiple arc-shaped guide grooves are symmetrically and equidistantly arranged on the top surface of the base.

[0012] As a preferred embodiment of the high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention, the positioning unit includes a positioning groove, a positioning block, an adjustment component and a lifting component. The positioning groove is opened on the middle surface of the top side of the base. The positioning block is engaged and connected in the positioning groove. The top side of the middle part of the positioning block is connected to the bottom of the machine base through the lifting component. The top of the opposite ends of the positioning block is connected to the machine base through the adjustment component. The control component includes an iron column fixedly installed on the top of the positioning block, sliders fixedly installed on both sides of the top of the iron column, a sliding frame fixedly installed on the bottom of the base, and an electromagnet block fixedly installed on the inner wall of the top of the sliding frame. When the electromagnet block is energized, the electromagnet block is magnetically connected to the iron column correspondingly arranged on the bottom side. The sliding frame has sliding cavities on its opposite two sides, and the slider is slidably disposed in the sliding cavity.

[0013] As a preferred embodiment of the high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention, the lifting assembly includes a connecting cylinder fixedly installed on the bottom side of the machine base, a connecting column slidably connected to the inner cavity at the bottom end of the connecting cylinder, and a connecting spring sleeved on the surface of the connecting cylinder. The top end of the connecting spring is fixedly connected to the bottom side of the base, the connecting spring is sleeved on the surface of the connecting column, and the bottom end of the connecting spring is fixedly connected to the top of the positioning block.

[0014] As a preferred embodiment of the high-energy planetary ball milling device for preparing ultrafine tungsten alloy powder according to the present invention, the ball milling mechanism includes a ball milling jar, a jar cover, and a locking assembly; the ball milling jar is disposed in the inner cavity of the placement shell, the top of the ball milling jar is snapped with the jar cover, the locking assembly is installed on the top side of the placement shell, and the locking assembly is used to lock and fix the jar cover to the ball milling jar; and the ball milling jar is provided with cemented carbide grinding balls. The locking assembly includes a fixing frame, a top plate, fixing bolts, and a pressing seat. The fixing frame is fixedly installed on the top side of the housing. The top plate is installed on the top of the fixing frame. The fixing bolts are threaded through the surface of the top plate. The pressing seat is rotatably connected to the bottom end of the fixing bolts. The pressing seat is placed on the top side of the can lid. A positioning frame is fixedly connected to the side surface of the pressing seat. A positioning bracket is fixedly connected to the top of the pressing seat. An auxiliary column with a T-shaped structure is threaded through the surface of the positioning bracket. The bottom end of the auxiliary column is fixedly connected to a clamping head through the positioning frame. The clamping head engages in a groove on the top side surface of the can lid.

[0015] As a preferred embodiment of the high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention, the negative pressure mechanism includes a negative pressure pump, a plug-in column, and a negative pressure pipe. The negative pressure pump is fixedly installed on the top side surface of the extrusion seat, the plug-in column is fixedly connected to the bottom side of the extrusion seat, the plug-in column is inserted into the plug-in hole opened on the surface of the can cover, the input end of the negative pressure pump is fixedly connected to the negative pressure pipe, and the output end of the negative pressure pump is fixedly connected to the exhaust pipe. The number of plugs is two. The end of the negative pressure pipe passes through the bottom of one plug and communicates with the inner cavity of the top of the ball mill jar. The other plug has a pressure relief pipe passing through it, and a pressure relief valve is installed at the top of the pressure relief pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention relates to a high-energy planetary ball mill device for the preparation of ultrafine tungsten alloy powder. The device utilizes a swing mechanism to facilitate the swinging of the planetary ball mill drive mechanism, which in turn grinds the raw material in the grinding jar 71. This effectively ensures more thorough grinding of the tungsten alloy raw material, resulting in the efficient production of ultrafine tungsten alloy powder with uniform particle size and stable quality. Furthermore, during the swinging operation, a guide component ensures that the planetary ball mill drive mechanism's swing is limited and its rotation is smooth, reducing equipment malfunctions.

[0017] The positioning unit enables precise positioning of the equipment when it is idle, ensuring overall stability and facilitating the installation and disassembly of the ball mill mechanism. During use, it allows the positioning block to disengage from the positioning slot, facilitating subsequent swinging operation of the ball mill mechanism. The negative pressure mechanism creates a negative pressure environment in the ball mill jar, effectively preventing oxidation of the tungsten alloy raw material during grinding and significantly improving the purity of the ultrafine tungsten alloy powder. The pressure relief valve design makes it convenient to open the jar lid after ball milling. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 is a schematic diagram of the overall front structure of a high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention.

[0019] Figure 2 is a left perspective view of a high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention.

[0020] Figure 3 is a schematic diagram of the right side of a high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention.

[0021] Figure 4 shows a high-energy planetary ball mill apparatus for preparing ultrafine tungsten alloy powder according to the present invention. Figure 3 Schematic diagram of the AA section structure.

[0022] Figure 5 shows a high-energy planetary ball mill apparatus for preparing ultrafine tungsten alloy powder according to the present invention. Figure 3 Schematic diagram of the cross-sectional structure of the middle BB.

[0023] Figure 6 shows a high-energy planetary ball mill apparatus for preparing ultrafine tungsten alloy powder according to the present invention. Figure 5 A magnified view of a portion of point A in the middle.

[0024] Figure 7 is a schematic front view of a high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention.

[0025] Figure 8 shows a high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention. Figure 7 Schematic diagram of the CC section.

[0026] Figure 9 shows a high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention. Figure 8 A magnified view of a portion of point B in the middle.

[0027] Figure 10This is a schematic diagram showing the connection between the guide assembly and the front side of the bottom of the machine base of a high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention.

[0028] Figure 11 This is a schematic diagram showing the connection between the guide assembly and the rear bottom of the base of a high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder according to the present invention.

[0029] In the picture: 1. Base; 2. Swinging mechanism; 21. Limit frame; 22. Hydraulic cylinder; 23. Guide seat; 24. Guide column; 25. Rack; 26. Arc-shaped gear plate; 27. Fixed shaft; 3. Guide assembly; 31. Arc-shaped guide groove; 32. Arc-shaped guide rod; 33. Guide slide; 4. Positioning unit; 41. Positioning groove; 42. Positioning block; 43. Adjustment component; 431. Iron column; 432. Slider; 433. Sliding frame; 434. Electromagnetic block; 44. Lifting component; 441. Connecting cylinder; 442. Connecting spring; 443. Connecting column; 5. Planetary ball mill drive mechanism; 51. Machine base; 52. Servo motor; 53. Drive wheel; 54. Drive belt; 55. Driven wheel; 56. First gear; 57. Second gear; 58. Rotating plate; 59. Housing; 6. Protective mechanism; 61. Fixed shell; 62. Flip shell; 63. Cooling fan; 64. Locking seat; 65. Locking bolt; 7. Ball milling mechanism; 71. Ball milling jar; 72. Jar lid; 73. Fixing frame; 74. Top plate; 75. Fixing bolts; 76. Extrusion seat; 77. Auxiliary column; 78. Positioning frame; 79. Chuck; 710. Positioning bracket; 8. Negative pressure mechanism; 81. Negative pressure pump; 82. Exhaust pipe; 83. Connector; 84. Negative pressure pipe; 85. Pressure relief pipe; 86. Pressure relief valve; 9. Controller. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth. Example 1:

[0034] Please see Figures 1-7 and Figures 10-11 As shown, this embodiment provides a high-energy planetary ball mill device for preparing ultrafine tungsten alloy powder, comprising: a base 1, a guide assembly 3, a positioning unit 4, a protective mechanism 6, and a controller 9. A swing mechanism 2 is mounted on the side surface of the base 1, and a planetary ball mill drive mechanism 5 is mounted on the drive end of the swing mechanism 2. The guide assembly 3 is disposed between the base 1 and the planetary ball mill drive mechanism 5, and can limit the movement of the planetary ball mill drive mechanism 5 to ensure that it moves along a predetermined trajectory. The guide assembly 3 is used to limit the movement of the planetary ball mill drive mechanism 5. The positioning unit 4 is installed at the bottom of the planetary ball mill drive mechanism 5. Unit 4 is used for positioning the planetary ball mill drive mechanism 5 when it is not in use. When the equipment is not in use, it can accurately position the planetary ball mill drive mechanism 5 to ensure its stable placement. The protective mechanism 6 is installed on the top of the planetary ball mill drive mechanism 5 to prevent external factors from interfering with the ball milling process and to ensure the safety of the operator. The protective mechanism 6 is equipped with a ball milling mechanism 7 installed on the top of the drive end of the planetary ball mill drive mechanism 5. The ball milling mechanism 7 is used for the ball milling preparation of ultrafine tungsten alloy powder. The controller 9 is installed on the top of the left end of the planetary ball mill drive mechanism 5. The controller 9 regulates the operation of each component to realize automated operation.

[0035] The swing mechanism 2 includes a limiting frame 21 installed on the left and right opposite side surfaces of the base 1, a hydraulic cylinder 22 installed on the rear side surface of the limiting frame 21, a rack 25 fixedly installed on the output end of the hydraulic cylinder 22, a guide portion fixedly installed on the bottom of the rack 25, an arc-shaped toothed plate 26 meshing with the top of the rack 25, and a fixed shaft 27 fixedly installed on the top of the arc-shaped toothed plate 26.

[0036] The guide portion includes a guide seat 23 and a guide post 24. The guide seat 23 is slidably connected to a guide cavity opened in the bottom inner wall of the limiting frame 21, and the guide post 24 installed in the guide cavity penetrates the side surface of the guide seat 23.

[0037] The planetary ball mill drive mechanism 5 includes a base 51, a drive assembly, a linkage assembly, a rotating plate 58, and a housing 59. The base 51 is fixedly installed at the end of the fixed shaft 27. The drive assembly is installed inside the base 51. The drive assembly is connected to the rotating plate 58 through the linkage assembly. The housing 59 is installed on the top of the rotating plate 58. The drive assembly includes a servo motor 52, a drive wheel 53, a drive belt 54, and a driven wheel 55. The servo motor 52 is mounted on the surface of the base 51. The drive wheel 53 is mounted on the surface of the output shaft of the servo motor 52. The drive wheel 53 is rotatably connected to the driven wheel 55 through the drive belt 54. A rotating shaft is installed inside the driven wheel 55. A rotating plate 58 is fixedly installed at the top of the rotating shaft. The linkage assembly includes a first gear 56 and a second gear 57. The first gear 56 is mounted on the surface of the rotating shaft. The second gear 57 is meshed with the outer side of the first gear 56. A rotating rod is installed in the inner cavity of the second gear 57. The top end of the rotating rod passes through the rotating plate 58, and a placement shell 59 is fixedly installed on the top end of the rotating rod. A limiting ring that rotates and fits against the rotating plate 58 is installed on the surface of the rotating rod.

[0038] In this embodiment, the servo motor 52 is started, driving the drive wheel 53 to rotate. The drive wheel 53 rotates with the driven wheel 55 via the drive belt 54. The rotation of the driven wheel 55 drives the rotating shaft to rotate, which in turn drives the rotating plate 58 to rotate. The rotating plate 58 then drives the ball milling mechanism 7 on the top side to rotate. Simultaneously, during the rotation of the rotating shaft, the rotating shaft drives the first gear 56 to rotate, which in turn drives the second gear 57 to rotate. The rotation of the second gear 57 drives the rotating rod to rotate, which in turn drives the placement shell 59 to rotate. A limiting ring is installed on the surface of the rotating rod to fit in rotation with the rotating plate 58. The limiting ring can ensure the stability of the rotating rod during rotation and prevent it from deviating. This allows the placement shell 59 to revolve around the rotating plate 58 while also rotating around its own axis, achieving planetary motion and improving the efficiency and quality of ball milling.

[0039] The protective mechanism 6 includes a fixed shell 61 fixedly installed on the top rear side of the base 51, a flip shell 62 hinged to the top surface of the fixed shell 61, a cooling fan 63 installed on the rear side of the fixed shell 61 for heat dissipation of the grinding mechanism, a locking seat 64 fixedly installed on the front side of the base 51, and a locking bolt 65 passing through the locking seat 64. The locking bolt 65 is used to fix and lock the flip shell 62 to the base 51 after it is closed.

[0040] During use, the cooling fan 63 effectively dissipates the heat generated by the ball mill mechanism 7 during operation, preventing excessive temperature from affecting the preparation of tungsten alloy powder. By rotating the locking bolt 65, the flip shell 62 can be tightened and loosened, ensuring that the flip shell 62 can be tightly closed during ball milling, preventing external impurities from entering, and ensuring the safety of operators and the cleanliness of the ball milling process.

[0041] The guide assembly 3 includes an arc-shaped guide groove 31 formed on the top side surface of the base 1, an arc-shaped guide rod 32 fixedly installed on the inner wall of the arc-shaped guide groove 31, and a guide slide 33 connected in the arc-shaped guide groove 31. The arc-shaped guide rod 32 passes through the side surface of the guide slide 33, and the top side of the guide slide 33 is fixedly connected to the bottom side surface of the base 51. The number of arc-shaped guide grooves 31 is provided in multiples, and the multiple arc-shaped guide grooves 31 are symmetrically and equidistantly arranged on the top surface of the base 1.

[0042] The positioning unit 4 includes a positioning groove 41, a positioning block 42, an adjustment component 43, and a lifting component 44. The positioning groove 41 is formed on the middle surface of the top side of the base 1. The positioning block 42 is engaged and connected in the positioning groove 41. The top side of the middle part of the positioning block 42 is connected to the bottom of the base 51 through the lifting component 44. The tops of the opposite ends of the positioning block 42 are connected to the base 51 through the adjustment component 43. The control component 43 includes an iron column 431 fixedly installed on the top of the positioning block 42, sliders 432 fixedly installed on both sides of the top of the iron column 431, a sliding frame 433 fixedly installed on the bottom of the base 51, and an electromagnet block 434 fixedly installed on the inner wall of the top of the sliding frame 433. When the electromagnet block 434 is energized, the electromagnet block 434 is magnetically connected to the iron column 431 correspondingly arranged on the bottom side. The sliding frame 433 has sliding cavities on its opposite two side surfaces, and the slider 432 is slidably disposed in the sliding cavity.

[0043] The lifting assembly 44 includes a connecting cylinder 441 fixedly installed on the bottom side of the base 51, a connecting column 443 slidably connected to the inner cavity at the bottom end of the connecting cylinder 441, and a connecting spring 442 sleeved on the surface of the connecting cylinder 441. The top end of the connecting spring 442 is fixedly connected to the bottom side of the base 51, the connecting spring 442 is sleeved on the surface of the connecting column 443, and the bottom end of the connecting spring 442 is fixedly connected to the top of the positioning block 42.

[0044] The ball milling mechanism 7 includes a ball milling jar 71, a jar cover 72, and a locking assembly; the ball milling jar 71 is disposed in the inner cavity of the placement shell 59, the top of the ball milling jar 71 is engaged with the jar cover 72, the locking assembly is installed on the top side of the placement shell 59, and the locking assembly is used to lock and fix the jar cover 72 and the ball milling jar 71; the ball milling jar 71 is provided with hard alloy grinding balls. In this embodiment, during the ball milling process, the grinding jar 71 contains tungsten alloy raw materials and cemented carbide grinding balls. When the planetary ball mill drive mechanism 5 is working, the placement shell 59 will carry the grinding jar 71 in a planetary motion. That is, while the grinding jar 71 revolves around the rotating plate 58, it will also rotate around its own axis. During the motion, the cemented carbide grinding balls in the grinding jar 71 will be subjected to various forces. The cemented carbide grinding balls will move at high speed in the grinding jar 71, constantly impacting, rubbing, and shearing the tungsten alloy raw materials, causing the tungsten alloy raw materials to gradually become smaller. After a period of ball milling, they are finally prepared into ultrafine tungsten alloy powder, which improves the efficiency and quality of ball milling.

[0045] The locking assembly includes a fixing frame 73, a top plate 74, a fixing bolt 75, and a pressing seat 76. The fixing frame 73 is fixedly installed on the top side of the housing 59. The top plate 74 is installed on the top of the fixing frame 73. The fixing bolt 75 is threaded through the surface of the top plate 74. The pressing seat 76 is rotatably connected to the bottom end of the fixing bolt 75. The pressing seat 76 is placed on the top side of the can lid 72. A positioning frame 78 is fixedly connected to the side surface of the pressing seat 76. A positioning frame 710 is fixedly connected to the top of the pressing seat 76. An auxiliary column 77 with a T-shaped structure is penetrating the surface of the positioning frame 710. The bottom end of the auxiliary column 77 is fixedly connected to a clamping head 79 through the positioning frame 78. The clamping head 79 is engaged in a groove on the top side surface of the can lid 72. When the can lid 72 needs to be installed on the ball mill jar 71, the moving auxiliary column 77 drives the fixed connection clamp 79 to engage in the groove. Then, the can lid 72 is placed on the top of the ball mill jar 71, the extrusion seat 76 is placed on the top side of the can lid 72, and the fixing bolt 75 is rotated. The fixing bolt 75 pushes the extrusion seat 76 downward to press the can lid 72. The extrusion seat 76 moves downward to firmly fix the can lid 72 on the ball mill jar 71, thereby ensuring that the can lid 72 is always tightly connected to the ball mill jar 71 during the ball milling process, preventing material leakage and the entry of external impurities, and ensuring the smooth progress of the ball milling process.

[0046] Operation process: When the base 51 needs to be swung, the controller 9 sends an energizing command to the electromagnet 434. After the electromagnet 434 is energized, it generates a strong magnetic field, which magnetically attracts the corresponding iron column 431 on the bottom side. Under the action of magnetic force, the iron column 431 is tightly attracted to the electromagnet 434. The iron column 431 drives the fixedly connected positioning block 42 to disengage from the positioning groove 41 cavity opened on the surface of the base 1, thus facilitating subsequent swaying operations. When the base 51 needs to be positioned, the electromagnet 434 is de-energized, and the connecting spring 4... Under the elastic force of 42 and the gravity of the positioning block 42, the positioning block 42 moves down into the positioning groove 41, thereby fixing the machine base 51 and ensuring the overall stability of the machine device. This facilitates the use of the ball mill jar 71. When the planetary ball mill drive mechanism 5 needs to swing, the controller 9 sends a command to the hydraulic cylinder 22, which then starts working. Its output end pushes the rack 25 to move. Since the rack 25 meshes with the arc-shaped toothed plate 26, the linear motion of the rack 25 is converted into the rotation of the arc-shaped toothed plate 26. The arc-shaped toothed plate 26 drives the fixed shaft 27, which is fixedly connected. The rotation of the fixed shaft 27 causes the fixedly connected base 51 to swing synchronously, thereby realizing the swing of the planetary ball mill drive mechanism 5. Simultaneously, as the rack 25 moves, the guide seat 23 moves along the guide cavity, and the guide column 24 penetrates the guide seat 23, effectively restricting the movement direction of the rack 25, ensuring it can only move along a predetermined straight trajectory. This guarantees the stability and reliability of the swing mechanism 2. It also ensures that the planetary ball mill drive mechanism 5 can swing within a certain angle range, allowing the ball mill mechanism 7 to grind the material more thoroughly during the ball milling process, improving the efficiency and quality of the ball milling. When the swing mechanism 2 drives the base 51 of the planetary ball mill drive mechanism 5 to swing, the guide slide 33 at the bottom of the base 51 moves within the arc-shaped guide groove 31. The guide slide 33 slides along the trajectory of the arc-shaped guide rod 32, thus restricting the movement direction of the base 51, ensuring it can only swing along a predetermined arc-shaped trajectory. This further guarantees the stability and reliability of the planetary ball mill drive mechanism 5 during movement, avoiding equipment failure or poor ball milling results caused by unstable movement trajectories. Example 2:

[0047] Reference Figures 5-6 and Figures 8-9 As shown, this embodiment differs from the first embodiment in that it includes a negative pressure mechanism 8, which is installed on the top surface of the ball milling mechanism 7 and is used to keep the inside of the ball milling mechanism 7 under negative pressure.

[0048] The negative pressure mechanism 8 includes a negative pressure pump 81, a plug-in post 83, and a negative pressure pipe 84. The negative pressure pump 81 is fixedly installed on the top surface of the extrusion seat 76. The plug-in post 83 is fixedly connected to the bottom side of the extrusion seat 76. The plug-in post 83 is inserted into the plug-in hole opened on the surface of the can cover 72. The input end of the negative pressure pump 81 is fixedly connected to the negative pressure pipe 84, and the output end of the negative pressure pump 81 is fixedly connected to the exhaust pipe 82. There are two plug-in pins 83. The end of the negative pressure pipe 84 passes through the bottom of one of the plug-in pins 83 and communicates with the inner cavity of the top of the ball mill jar 71. The other plug-in pin 83 has a pressure relief pipe 85 passing through it, and a pressure relief valve 86 is installed at the top of the pressure relief pipe 85.

[0049] The rest of the structure is the same as in Example 1.

[0050] During operation, the insertion post 83 engages with the top of the can lid 72 after the extrusion seat 76 presses against it. Simultaneously, the controller 9 controls the negative pressure pump 81 to operate. The negative pressure pump 81 evacuates air from the ball mill jar 71 through the negative pressure pipe 84. As the gas inside the ball mill jar 71 is continuously extracted, the air pressure inside the ball mill jar 71 gradually decreases, creating a negative pressure environment. This effectively prevents the tungsten alloy raw material from oxidizing with oxygen in the air during the ball milling process, ensuring the purity and quality of the ultrafine tungsten alloy powder. After the ball milling operation is completed, the negative pressure pump 81 is turned off first, and then the pressure relief valve 86 is opened to restore the pressure inside the ball mill jar 71 to the same as the external atmospheric pressure, making it convenient for the operator to open the can lid 72 and take out the prepared ultrafine tungsten alloy powder.

[0051] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to the particular embodiments but extends to a variety of modifications that still fall within the scope of the appended claims.

[0052] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0053] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high energy planetary ball mill device for the preparation of ultrafine tungsten alloy powders, characterized by, It includes: A base (1) is provided with a swing mechanism (2) installed on the side surface of the base (1), and a planetary ball mill drive mechanism (5) is installed at the drive end of the swing mechanism (2). A guide component (3) is disposed between the base (1) and the planetary ball mill drive mechanism (5), and the guide component (3) is used to limit the movement of the planetary ball mill drive mechanism (5); Positioning unit (4), the positioning unit (4) is installed at the bottom of the planetary ball mill drive mechanism (5), the positioning unit (4) is used for positioning the planetary ball mill drive mechanism (5) when it is not in use; A protective mechanism (6) is installed on the top of the planetary ball mill drive mechanism (5). The protective mechanism (6) is provided with a ball milling mechanism (7) installed on the top of the drive end of the planetary ball mill drive mechanism (5). The ball milling mechanism (7) is used for ball milling preparation of ultrafine tungsten alloy powder. A negative pressure mechanism (8) is installed on the top surface of the ball milling mechanism (7) and is used to keep the inside of the ball milling mechanism (7) under negative pressure. The controller (9) is mounted on the top left end of the planetary ball mill drive mechanism (5).

2. A high energy planetary ball mill device for the production of ultrafine tungsten alloy powders as claimed in claim 1, wherein: The swing mechanism (2) includes a limiting frame (21) installed on the left and right opposite side surfaces of the base (1), a hydraulic cylinder (22) installed on the rear side surface of the limiting frame (21), a rack (25) fixedly installed on the output end of the hydraulic cylinder (22), a guide portion fixedly installed on the bottom of the rack (25), an arc-shaped toothed plate (26) meshing with the top of the rack (25), and a fixed shaft (27) fixedly installed on the top of the arc-shaped toothed plate (26).

3. A high energy planetary ball mill device for the production of ultrafine tungsten alloy powders as claimed in claim 2, wherein: The guide part includes a guide seat (23) and a guide post (24). The guide seat (23) is slidably connected to a guide cavity opened in the bottom inner wall of the limiting frame (21), and the guide post (24) installed in the guide cavity penetrates the side surface of the guide seat (23).

4. A high energy planetary ball mill device for the production of ultrafine tungsten alloy powders as claimed in claim 1, wherein: The planetary ball mill drive mechanism (5) includes a base (51), a drive assembly, a linkage assembly, a rotating plate (58), and a placement shell (59). The base (51) is fixedly installed at the end of the fixed shaft (27). The drive assembly is installed inside the base (51). The drive assembly is connected to the rotating plate (58) through the linkage assembly. The placement shell (59) is installed on the top of the rotating plate (58). The drive assembly includes a servo motor (52), a drive wheel (53), a drive belt (54), and a driven wheel (55). The servo motor (52) is mounted on the surface of the base (51). The drive wheel (53) is mounted on the surface of the output shaft of the servo motor (52). The drive wheel (53) is rotatably connected to the driven wheel (55) through the drive belt (54). A rotating shaft is installed inside the driven wheel (55). A rotating plate (58) is fixedly installed at the top of the rotating shaft. The linkage assembly includes a first gear (56) and a second gear (57). The first gear (56) is mounted on the surface of the rotating shaft. The second gear (57) is meshed with the outer side of the first gear (56). A rotating rod is installed in the inner cavity of the second gear (57). The top end of the rotating rod passes through the rotating plate (58), and a placement shell (59) is fixedly installed on the top end of the rotating rod. A limiting ring that rotates and fits against the rotating plate (58) is installed on the surface of the rotating rod.

5. A high energy planetary ball mill device for the production of ultrafine tungsten alloy powders as claimed in claim 1, wherein: The protective mechanism (6) includes a fixed shell (61) fixedly installed on the top rear side of the base (51), a flip shell (62) hinged to the top surface of the fixed shell (61), a cooling fan (63) installed on the rear side of the fixed shell (61) for heat dissipation of the grinding mechanism, a locking seat (64) fixedly installed on the front side of the base (51), and a locking bolt (65) penetrating the locking seat (64). The locking bolt (65) is used to fix and lock the flip shell (62) to the base (51) after it is closed.

6. A high energy planetary ball mill device for the production of ultrafine tungsten alloy powders as claimed in claim 1, wherein: The guide assembly (3) includes an arc-shaped guide groove (31) formed on the top side surface of the base (1), an arc-shaped guide rod (32) fixedly installed on the inner wall of the arc-shaped guide groove (31), and a guide slide (33) connected in the arc-shaped guide groove (31). The arc-shaped guide rod (32) passes through the side surface of the guide slide (33), and the top side of the guide slide (33) is fixedly connected to the bottom side surface of the base (51); The number of the arc-shaped guide grooves (31) is multiple, and the multiple arc-shaped guide grooves (31) are symmetrically and equidistantly arranged on the top surface of the base (1).

7. The high-energy planetary ball mill apparatus for preparing ultrafine tungsten alloy powder as described in claim 1, characterized in that: The positioning unit (4) includes a positioning groove (41), a positioning block (42), an adjustment component (43), and a lifting component (44). The positioning groove (41) is opened on the middle surface of the top side of the base (1). The positioning block (42) is engaged and connected in the positioning groove (41). The top side of the middle part of the positioning block (42) is connected to the bottom of the base (51) through the lifting component (44). The tops of the opposite ends of the positioning block (42) are connected to the base (51) through the adjustment component (43). The control component (43) includes an iron column (431) fixedly installed on the top of the positioning block (42), sliders (432) fixedly installed on both sides of the top of the iron column (431), a sliding frame (433) fixedly installed on the bottom of the base (51), and an electromagnet block (434) fixedly installed on the inner wall of the top of the sliding frame (433). When the electromagnet block (434) is energized, the electromagnet block (434) is magnetically connected to the iron column (431) correspondingly arranged on the bottom side. The sliding frame (433) has sliding cavities on its opposite sides, and the slider (432) is slidably disposed in the sliding cavity.

8. A high energy planetary ball mill device for the production of ultrafine tungsten alloy powders as claimed in claim 7, wherein: The lifting assembly (44) includes a connecting cylinder (441) fixedly installed on the bottom side of the base (51), a connecting column (443) slidably connected to the inner cavity at the bottom end of the connecting cylinder (441), and a connecting spring (442) sleeved on the surface of the connecting cylinder (441). The top end of the connecting spring (442) is fixedly connected to the bottom side of the base (51), the connecting spring (442) is sleeved on the surface of the connecting column (443), and the bottom end of the connecting spring (442) is fixedly connected to the top of the positioning block (42).

9. A high-energy planetary ball mill for preparing ultrafine tungsten alloy powder as described in claim 1, characterized in that: The ball milling mechanism (7) includes a ball milling jar (71), a jar cover (72), and a locking assembly; the ball milling jar (71) is disposed in the inner cavity of the placement shell (59), the top of the ball milling jar (71) is engaged with the jar cover (72), the locking assembly is installed on the top side of the placement shell (59), the locking assembly is used to lock and fix the jar cover (72) and the ball milling jar (71), and the ball milling jar (71) is provided with a hard alloy grinding ball; The locking assembly includes a fixing frame (73), a top plate (74), a fixing bolt (75), and a pressing seat (76). The fixing frame (73) is fixedly installed on the top side of the housing (59). The top plate (74) is installed on the top of the fixing frame (73). The fixing bolt (75) is threaded through the surface of the top plate (74). The pressing seat (76) is rotatably connected to the bottom end of the fixing bolt (75). The pressing seat (76) is placed on the top side of the can lid (72). A positioning frame (78) is fixedly connected to the side surface of the pressing seat (76). A positioning frame (710) is fixedly connected to the top of the pressing seat (76). An auxiliary column (77) with a T-shaped structure is penetrated through the surface of the positioning frame (710). The bottom end of the auxiliary column (77) penetrates the positioning frame (78) and is fixedly connected to the clamp head (79). The clamp head (79) is engaged in the groove on the top side surface of the can lid (72).

10. A high energy planetary ball mill device for the production of ultrafine tungsten alloy powders as claimed in claim 1, wherein: The negative pressure mechanism (8) includes a negative pressure pump (81), a plug-in post (83), and a negative pressure pipe (84). The negative pressure pump (81) is fixedly installed on the top surface of the extrusion seat (76). The plug-in post (83) is fixedly connected to the bottom side of the extrusion seat (76). The plug-in post (83) is inserted into the plug-in hole opened on the surface of the can cover (72). The input end of the negative pressure pump (81) is fixedly connected to the negative pressure pipe (84), and the output end of the negative pressure pump (81) is fixedly connected to the exhaust pipe (82). There are two plugs (83). The end of the negative pressure pipe (84) passes through the bottom of one plug (83) and communicates with the inner cavity of the top of the ball mill jar (71). The other plug (83) has a pressure relief pipe (85) passing through it. A pressure relief valve (86) is installed at the top of the pressure relief pipe (85).

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