A hard alloy ball mill device for producing an antenna alloy material accessory

By combining floating inner liner blocks and magnetic plates, the problem of slow initial grinding speed in cemented carbide ball mills is solved, achieving efficient crushing effect and stable grinding process.

CN119909810BActive Publication Date: 2026-07-24JIANGSU XUNSHIDA NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU XUNSHIDA NEW MATERIALS TECHNOLOGY CO LTD
Filing Date
2025-03-24
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing cemented carbide ball mills have insufficient impact force on large-diameter alloy materials in the initial grinding stage, resulting in a slow crushing speed.

Method used

The design employs a floating inner liner block, combined with a magnetic plate and adjustment mechanism. The inner liner block is moved by magnetic force and accumulates elastic potential energy. The pop-out position of the inner liner block is adjusted to increase the falling speed of the grinding media and enhance the initial grinding effect.

Benefits of technology

It improves the grinding efficiency of cemented carbide powder, ensures the stability and consistency of the processing, adapts to materials with different properties and states, and meets different needs.

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Abstract

The application relates to the technical field of ball mills, in particular to a hard alloy ball mill device for producing antenna alloy material accessories, which comprises a cylinder for loading materials and ball mill media, and a lining plate structure for protection is arranged in the cylinder, the lining plate structure comprises: a fixed lining plate which is a notched cylindrical structure; an inner lining strip which can accumulate elastic potential energy and eject the ball mill media, and the inner lining strip is arranged in the notch of the fixed lining plate; the inner lining strip is composed of a plurality of inner lining blocks which are arranged and combined, a ferromagnetic end block is connected to the inner lining block, an elastic piece is connected to the ferromagnetic end block, the elastic piece can accumulate elastic potential energy to push the inner lining block; the ball mill device further comprises: a magnetic attraction plate which is used for generating a magnetic force on the ferromagnetic end block to drive the inner lining block to move; an arc-shaped rail which is used for guiding installation of the magnetic attraction plate, and the magnetic attraction plate is connected to a sliding seat of the arc-shaped rail; and the purpose of increasing the initial grinding speed of the ball mill is achieved.
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Description

Technical Field

[0001] This invention relates to the field of ball mill technology, specifically to a cemented carbide ball milling device for the production of antenna alloy material accessories. Background Technology

[0002] As a key component for signal transmission, the performance and stability of antennas have a crucial impact on communication quality. Alloys are a common material used in antenna accessories such as radomes. The production process of antenna alloy accessories typically requires preliminary crushing using a carbide ball mill to generate metal powder that meets the required specifications. The carbide ball mill processes carbide and grinding media in the same container, producing carbide powder particles with specific formability and density.

[0003] The working principle of a cemented carbide ball mill is to control parameters such as the ratio of grinding media to cemented carbide powder, the rotation speed of the grinding container, and the running-in time, so that the cemented carbide powder is subjected to uniform impact and shearing during the ball milling process, thereby achieving powder refinement, mixing, and homogenization. The advantage of a cemented carbide ball mill lies in its ability to efficiently and precisely control the particle size distribution and formability of cemented carbide powder, thus meeting the performance requirements of cemented carbide materials in different fields. Currently, the most commonly used ball mills typically have a horizontal cylindrical structure, with the grinding media moving with the rotation of the cylinder. While this provides good uniform grinding, the impact force on large-diameter alloy materials is often insufficient in the initial grinding stage, resulting in a slow initial crushing speed. Summary of the Invention

[0004] The purpose of this invention is to provide a cemented carbide ball milling device for the production of antenna alloy material accessories, so as to increase the initial grinding speed of the ball mill and solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hard alloy ball milling apparatus for producing antenna alloy material accessories, comprising a cylinder for loading materials and milling media, and a protective liner structure provided in the cylinder, the liner structure comprising: The fixing plate is a notched cylindrical structure; The inner liner strip is capable of accumulating elastic potential energy and ejecting the ball milling media, and the inner liner strip is set in the notch of the fixed liner plate; The inner lining strip is composed of multiple inner lining blocks arranged in combination, and ferromagnetic end blocks are connected to the inner lining blocks, and elastic elements are connected to the ferromagnetic end blocks. The elastic elements can accumulate elastic potential energy to push the inner lining blocks. The ball mill apparatus also includes: Magnetic chuck: The magnetic chuck is used to generate magnetic force on the ferromagnetic end block, thereby moving the inner liner block. The curved rail is used for guiding and installing the magnetic suction plate, and the magnetic suction plate is connected to the slide of the curved rail. The adjustment mechanism is used to control the position of the slide in the arc-shaped rail. The adjustment mechanism has both manual and automatic adjustment modes. When the automatic adjustment is performed, the position of the slide in the arc-shaped rail can be changed according to the rotation speed of the cylinder.

[0006] Preferably, a top plate is embedded in the cylinder, and a floating rod is slidably installed on the top plate. An inner lining block is installed at the bottom end of the floating rod, and a ferromagnetic end block is installed at the top end of the floating rod. The top plate is equipped with an adjustable blocking structure, which can selectively limit the movement of some of the inner lining blocks.

[0007] Preferably, the adjustment mechanism includes a mounting base fixedly connected to the slide, and an adjustment seat capable of adjusting position is slidably mounted on the mounting base. The adjustment seat can be fixed on the arc-shaped rail or move with the rotation of the cylinder.

[0008] Preferably, one side of the adjusting seat is fixedly connected to a locking seat that can engage with the arc-shaped rail at a fixed angle, and the other side of the adjusting seat is fixedly connected to a support rod; The cylinder is connected to an annular groove that can rotate with it, and movable push columns are installed in a circular array on the annular groove, and the support rod can contact and connect with the push columns.

[0009] Preferably, the ball mill device includes a support base, and a first bearing and a second bearing are respectively provided on both sides of the support base. Hollow inlet and outlet shafts are provided on both sides of the cylinder, and the hollow inlet and outlet shafts are respectively connected to the first bearing and the second bearing.

[0010] Preferably, a side seat is provided on the first bearing, through which the arc-shaped rail is installed, the slide can move along the direction of the arc-shaped rail, and a rotating frame is fixedly connected to the slide, through which the magnetic suction plate is installed, and a shielding plate is installed on one side of the magnetic suction plate.

[0011] Preferably, the mounting base is provided with a limiting groove for installing the adjusting base. The limiting groove has an adjusting hole in the middle, a positioning hole and a self-adjusting hole on both sides. The positioning hole is located near the slide, and the self-adjusting hole is located near the support rod. The adjusting base is provided with a pin for fixing the position of the adjusting base.

[0012] Preferably, an arc-shaped clamping plate is fixedly connected to the arc-shaped rail, and the clamping plate is set on the side of the arc-shaped rail. Limiting teeth are arranged on the clamping plate, and when the adjusting seat is fixed in the positioning hole position, the clamping seat can be connected to the adjacent limiting teeth. The end of the support rod is provided with a wear-resistant end, and when the adjusting seat is fixed in the self-adjusting hole position, the wear-resistant end can contact and connect with the push column.

[0013] Preferably, the blocking structure includes a rotating rod rotatably mounted on the top plate, and a stop block is provided at the top of the rotating rod. The rotating rods are staggered on both sides of the floating rod, and the ferromagnetic end block can be blocked by the stop block.

[0014] Preferably, a gear is fixedly connected to the bottom of the rotating rod, and a control end is slidably installed on the top plate. A moving rod is fixedly connected to the control end, and a rack is provided on the moving rod. The moving rods are respectively set on both sides of the floating rod, and the control end is fixed by the positioning structure on the top plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention has high-efficiency grinding performance. It features a floating inner liner block design. The inner liner block can be ejected outward under appropriate conditions through the structure of the floating rod, allowing the grinding media to fall faster inside the cylinder. This results in larger particles being crushed more quickly in the initial stage, thus improving the overall grinding efficiency.

[0016] 2. This invention utilizes a magnetic suction plate as an inner liner block to accumulate elastic potential energy. The position of the magnetic suction plate is flexibly adjustable; it automatically adjusts its position as the cylinder rotates to adapt to changes in material height at different speeds. By adjusting the pop-out position of the inner liner block, the processing area of ​​the grinding media is always effectively saturated, thus continuously providing the best grinding effect. The magnetic suction plate can be adjusted manually or automatically, allowing operators to adjust its position as needed, or automatically adjust it according to the cylinder's rotation speed. At higher cylinder speeds, the pushing column, combined with centrifugal force, generates greater friction, causing the slide to move upwards to accommodate the height the material is carried, ensuring stability and consistency during processing.

[0017] 3. The floating inner liner block of the present invention is selective, and the operator can select some or all of the inner liner blocks to work in a floating state according to the processing needs. This flexibility enables the equipment to handle materials with different characteristics and states, such as hard alloy particles or softer materials. By selectively controlling the floating state of the inner liner block, the grinding effect of various materials can be optimized. Attached Figure Description

[0018] Figure 1 This is a first schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a second schematic diagram of the overall structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of the cylinder of the present invention.

[0021] Figure 4This is a schematic diagram of the floating inner lining strip and top plate structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the inner liner block structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the control lever and rack structure of the present invention.

[0024] Figure 7 This is a schematic diagram of the magnetic chuck mounting structure of the present invention.

[0025] Figure 8 This is a schematic diagram of the rotating frame mounting structure of the present invention.

[0026] Figure 9 This is a schematic diagram of the arc-shaped rail and movable seat structure of the present invention.

[0027] Figure 10 This is a schematic diagram of the adjusting seat structure of the present invention.

[0028] Figure 11 This is a schematic diagram of the arc-shaped rail structure of the present invention.

[0029] In the diagram: 1. Support seat; 2. First bearing; 3. Second bearing; 4. Cylinder; 5. Hollow inlet / outlet shaft; 6. Fixed liner; 7. Top plate; 8. Floating rod; 9. Inner liner block; 10. Ferromagnetic end block; 11. Side seat; 12. Arc rail; 13. Slide seat; 14. Rotating frame; 15. Magnetic suction plate; 16. Shielding plate; 17. Mounting seat; 18. Limiting groove; 19. Adjusting hole; 20. Positioning hole; 21. Self-adjusting hole; 22. Adjusting seat; 23. Pin; 24. Card seat; 25. Support rod; 26. Wear-resistant end; 27. Card plate; 28. Limiting tooth; 29. ​​Annular groove; 30. Push column; 31. Rotating rod; 32. Stop block; 33. Gear; 34. Control end; 35. Moving rod; 36. Rack; 37. Center seat; 38. Spring block. Detailed Implementation

[0030] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1 to 11 The present invention provides a technical solution: a cemented carbide ball milling device for producing antenna alloy material accessories.

[0032] like Figures 1-3 As shown, the ball mill device includes a support base 1, which is typically fixed on a stable concrete surface. A first bearing 2 and a second bearing 3 are respectively installed on both sides of the support base 1. The ball mill body 4 is installed via the first bearing 2 and the second bearing 3. Hollow inlet and outlet shafts 5 are provided on both sides of the ball mill body 4, allowing alloy materials to enter and exit through these shafts. Simultaneously, a large gear is installed on the ball mill body 4, which can be driven to rotate via a motor, reducer, and small gear. Note that an energy-saving motor is selected to meet the need for continuous, long-term operation and cost reduction. This allows the hard alloy material and grinding media inside the ball mill body 4 to move and grind. A liner structure is installed inside the ball mill body 4 to protect it and prevent damage from the grinding media.

[0033] like Figures 3-5 As shown, the liner structure consists of a fixed liner 6 and a floating inner liner strip. The fixed liner 6 is a cylindrical structure with a notch, installed on the inner wall of the cylinder 4. The inner liner strip is set in the notch of the fixed liner 6 and is composed of multiple inner liner blocks 9 arranged in combination. A top plate 7 is embedded in the cylinder 4, and a floating rod 8 is slidably installed on the top plate 7. The inner liner blocks 9 are installed at the bottom of the floating rod 8, and a ferromagnetic end block 10 is fixedly installed at the top of the floating rod 8. An elastic element is fixedly connected between the ferromagnetic end block 10 and the top plate 7. The elasticity limits the floating rod 8, thereby causing the inner liner block 9 to protrude from the inner wall of the fixed liner 6 under normal conditions. If the floating rod 8 is pulled, the elastic element can be extended to accumulate elastic potential energy. When released, the inner liner block 9 ejects the grinding media on it, increasing the potential energy generated by its fall, thereby enhancing the initial grinding effect and quickly crushing large particles of powder.

[0034] like Figure 7 , Figure 8As shown, this invention mainly uses magnetic force generated on the ferromagnetic end block 10 to move the floating rod 8 and the inner liner block 9. A side seat 11 is provided on the first bearing 2, and the arc-shaped rail 12 is installed through the side seat 11. A slide block 13 is movably installed in the arc-shaped rail 12 and can move along the direction of the arc-shaped rail 12. A rotating frame 14 is fixedly connected to the slide block 13, and a magnetic suction plate 15 is installed through the rotating frame 14. The magnetic suction plate 15 is located on the side of the cylinder 4. When the cylinder 4 rotates, the top plate 7 moves from... When the side of the magnetic suction plate 15 passes by, the magnetic suction plate 15 can generate a magnetic force on the ferromagnetic end block 10, thereby causing the floating rod 8 and the inner liner plate to rise. The magnetic suction plate 15 can adopt an electromagnetic structure or a permanent magnet structure. A ferromagnetic material shielding plate 16 is installed on one side of the magnetic suction plate 15 to shield the magnetic force on one side of the magnetic suction plate 15. After the floating rod 8 passes the shielding plate 16, it can quickly get rid of the magnetic force and rebound under the action of elastic potential energy, and use the inner liner block 9 to push the ball milling media.

[0035] like Figures 9-10 As shown, since the magnetic suction plate 15 is mounted on the slide 13 via the rotating frame 14, the position of the magnetic suction plate 15 can be adjusted by rotating the slide 13, thereby changing the pop-out position of the inner liner plate. This is because when the cylinder 4 rotates at different speeds, the material and grinding media inside will be driven to different heights, so the position of the magnetic suction plate 15 needs to be changed accordingly. In addition to mounting the rotating frame 14, the slide 13 is also equipped with a mounting base 17, which has a limiting groove 18 for mounting the adjusting base 22. A card seat 24 is mounted on one side of the adjusting base 22, and a support rod 25 is mounted on the other side for mounting the wear-resistant end 26. An adjusting hole 19 is provided in the middle of the limiting groove 18, while a positioning hole 20 and a self-adjusting hole 21 are provided on both sides. The positioning hole 20 is located near the slide 13, and the self-adjusting hole 21 is located near the support rod 25. A pin 23 is provided on the adjusting base 22, which can be connected to the adjusting hole 19, the positioning hole 20, or the self-adjusting hole 21 to fix the adjusting base 22 in the middle or on the left and right sides of the limiting groove 18.

[0036] like Figure 11As shown, a clamping plate 27 is fixedly connected to the arc-shaped rail 12 of the present invention. The clamping plate 27 is also an arc-shaped structure and is set on the side of the arc-shaped rail 12. Limiting teeth 28 are arranged on the clamping plate 27. At the same time, an annular groove 29 is fixedly connected to the infeed and discharge hollow shaft 5 near the first bearing 2. Pushing columns 30 are arranged in annular array on the outer wall of the annular groove 29. The annular groove 29 can rotate with the infeed and discharge hollow shaft 5. The pushing columns 30 adopt a movable structure and their surfaces have friction. When the adjusting seat 22 is fixed in the middle of the limiting groove 18 by the pin 23, the clamping seat 24 will not connect with the limiting teeth 28. At the same time, the wear-resistant end 26 will not contact the pushing column 30. Therefore, the slide 13 can move freely in the arc-shaped rail 12 to adjust the position of the magnetic suction plate 15. After the adjustment is completed, the pin 23 connects with the positioning hole 20 by the movement of the adjusting seat 22 in the limiting groove 18, and the clamping seat 24... The slide 13 can be fixed in the limiting tooth 28, so that the magnetic suction plate 15 is in a predetermined position. The above is the process of manual adjustment according to the rotation speed of the cylinder 4. At the same time, the magnetic suction plate 15 can also be automatically adjusted as the rotation speed of the cylinder 4 changes. The adjusting seat 22 is moved in the limiting groove 18 to the position of the self-adjusting hole 21. At this time, the wear-resistant end 26 of the support rod 25 contacts the pushing column 30. As the annular groove 29 rotates with the inlet and outlet hollow shaft 5, the pushing column 30 on it can push the wear-resistant end 26 upward through friction, so that the position of the slide 13 can be changed until its gravity and friction are balanced. As the rotation speed of the cylinder 4 increases, the centrifugal force on the pushing column 30 increases, which can generate a greater positive pressure on the wear-resistant end 26, and thus generate a greater friction, so that the slide 13 rotates to a higher height to adapt to the height to which the ball milling media is driven.

[0037] like Figure 6 As shown, the present invention can also selectively adjust the inner liner block 9, allowing some or all of the inner liner block 9 to float and pop out, pushing the ball milling media downward. A rotating rod 31 is rotatably mounted on the top plate 7, and a stop block 32 is provided at the top of the rotating rod 31. When the rotating rod 31 rotates the stop block 32 to the top of the ferromagnetic end block 10, it can block the ferromagnetic end block 10, preventing it from lifting the floating rod 8 under the action of magnetic force. The rotating rod 31 is located on the side of the floating rod 8, and half of the rotating rod 31 can be located on one side of the floating rod 8, and the other half on the other side of the floating rod 8, as shown. Figure 3As shown, a gear 33 is fixedly connected to the bottom of the rotating rod 31, while a control end 34 is slidably mounted on the top plate 7. A moving rod 35 is fixedly connected to the control end 34, and a rack 36 is arranged on the moving rod 35. Correspondingly, the moving rod 35 can be set on both sides of the floating rod 8, and the rack 36 on it is connected to half of the gear 33. When the control end 34 is moved, half of the rotating rod 31 can be rotated, blocking the stop block 32 on the ferromagnetic end, so that the inner liner block 9 at this position will not move. Therefore, half of the inner liner block 9 can be used for the medium ejection function. Correspondingly, the floating rod 8 and the inner liner block 9 can also be divided into more parts and controlled separately. Furthermore, a slot is provided on the control end 34, and a center seat 37 is fixedly mounted on the top plate 7. A spring lock block 38 is provided on the center seat 37. The control end 34 is fixed in the corresponding position by the connection between the spring lock block 38 and the slot, thereby achieving the effect of stabilizing the control block 32 and selecting the inner liner block 9 to be used.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cemented carbide ball milling apparatus for producing antenna alloy material accessories, comprising a cylinder for loading materials and milling media, wherein a protective liner structure is provided within the cylinder, characterized in that: The liner structure includes: A fixed liner, wherein the fixed liner is a cylindrical structure with a notch; The inner liner strip is capable of accumulating elastic potential energy and ejecting the ball milling media, and the inner liner strip is disposed in the notch of the fixed liner plate; The inner lining strip is composed of multiple inner lining blocks arranged in combination, and ferromagnetic end blocks are connected to the inner lining blocks, and elastic elements are connected to the ferromagnetic end blocks. The elastic elements can accumulate elastic potential energy to push the inner lining blocks. The ball milling apparatus also includes: A magnetic suction plate is used to generate a magnetic force on the ferromagnetic end block, thereby moving the inner liner block. An arc-shaped rail is used for guiding the installation of the magnetic suction plate, and the magnetic suction plate is connected to the slide of the arc-shaped rail; An adjustment mechanism is provided to control the position of the slide block in the arc-shaped rail. The adjustment mechanism has a manual adjustment mode and an automatic adjustment mode. When the automatic adjustment is performed, the position of the slide block in the arc-shaped rail can be changed according to the rotation speed of the cylinder. A top plate is embedded in the cylinder, and a floating rod is slidably installed on the top plate. The inner lining block is installed at the bottom end of the floating rod, and the ferromagnetic end block is installed at the top end of the floating rod. The top plate is provided with an adjustable blocking structure, which can selectively limit the movement of some of the inner lining blocks. The adjustment mechanism includes a mounting base fixedly connected to the slide, and an adjustment seat that can be adjusted in position is slidably mounted on the mounting base. The adjustment seat can be fixed on the arc-shaped rail or move with the rotation of the cylinder. The adjusting seat is fixedly connected to a locking seat on one side, which can engage with the arc-shaped rail at a fixed angle, and a support rod is fixedly connected to the other side of the adjusting seat; The cylinder is connected to an annular groove that can rotate with it, and movable push columns are installed in a circular array on the annular groove, and the support rod can contact and connect with the push columns.

2. The cemented carbide ball milling apparatus for producing antenna alloy material accessories according to claim 1, characterized in that: The ball mill device includes a support base, and a first bearing and a second bearing are respectively provided on both sides of the support base. Hollow shafts for feeding and discharging are provided on both sides of the cylinder, and the hollow shafts for feeding and discharging are respectively connected to the first bearing and the second bearing.

3. The cemented carbide ball milling apparatus for producing antenna alloy material accessories according to claim 2, characterized in that: The first bearing is provided with a side seat, through which an arc-shaped rail is installed. The slide can move along the direction of the arc-shaped rail, and a rotating frame is fixedly connected to the slide. The magnetic suction plate is installed through the rotating frame, and a shielding plate is installed on one side of the magnetic suction plate.

4. The cemented carbide ball milling apparatus for producing antenna alloy material accessories according to claim 3, characterized in that: The mounting base is provided with a limiting groove for installing the adjustment seat. The limiting groove has an adjustment hole in the middle, a positioning hole and a self-adjusting hole on both sides. The positioning hole is located near the slide, and the self-adjusting hole is located near the support rod. The adjustment seat is provided with a pin for fixing the position of the adjustment seat.

5. The cemented carbide ball milling apparatus for producing antenna alloy material accessories according to claim 1, characterized in that: An arc-shaped clamping plate is fixedly connected to the arc-shaped rail, and the clamping plate is located on the side of the arc-shaped rail. Limiting teeth are arranged on the clamping plate. When the adjusting seat is fixed in the positioning hole position, the clamping seat can be connected to the adjacent limiting teeth. The end of the support rod is provided with a wear-resistant end. When the adjusting seat is fixed in the self-adjusting hole position, the wear-resistant end can contact and connect with the pushing column.

6. The cemented carbide ball milling apparatus for producing antenna alloy material accessories according to claim 1, characterized in that: The blocking structure includes a rotating rod rotatably mounted on the top plate, and a stop block is provided at the top of the rotating rod. The rotating rods are staggered on both sides of the floating rod, and the ferromagnetic end block can be blocked by the stop block.

7. The cemented carbide ball milling apparatus for producing antenna alloy material accessories according to claim 6, characterized in that: The bottom of the rotating rod is fixedly connected to a gear, and a control end is slidably installed on the top plate. A moving rod is fixedly connected to the control end, and a rack is provided on the moving rod. The moving rod is respectively set on both sides of the floating rod, and the control end is fixed by the positioning structure on the top plate.