Microwave dielectric ceramic powder raw material crushing device and method

Abstract

The invention discloses a microwave dielectric ceramic powder raw material crushing device and method. The microwave dielectric ceramic powder raw material crushing device comprises a driving seat, a static grinding assembly and a movable grinding assembly. Adjusting rods and a grinding cabin are fixedly installed on the surface of the driving seat, the adjusting rods are of a hydraulic rod structure and are evenly arranged on the periphery of the grinding cabin in the circumferential direction, and height lifting adjustment of the static grinding assembly is achieved through a hydraulic system. The movable grinding assembly comprises a swing shaft set, an annular grinding disc and a grinding cone fixed to the surface of the swing shaft set. The input shaft rod is in meshing transmission with the eccentric gear ring to drive the movable grinding assembly to rotate. The static grinding assembly comprises a movable ring base, a material guide ring and a grinding conical cap fixed to the bottom face of the material guide ring, the material guide ring and the movable ring base are connected through threads, and the grinding gap can be adjusted by rotating the material guide ring. The device is compact in structure, high in crushing efficiency, good in grinding particle uniformity and capable of meeting the machining requirements of ceramic powder of different specifications and characteristics.

Description

Technical Field

[0001] The present invention relates to the technical field of powder crushing, and in particular to a device and method for crushing microwave dielectric ceramic powder raw materials. Background Art

[0002] In the production and processing of ceramic materials, the crushing and grinding of ceramic powders is one of the most important processes. The particle size of ceramic powders directly affects the subsequent sintering, densification and quality of the finished product, thus placing higher demands on ceramic powder crushing equipment.

[0003] At present, common ceramic powder crushing equipment mainly includes ball mills, vibration mills, air flow mills and other equipment, but there are the following problems during use: Existing crushing equipment typically uses a single crushing method (such as shearing or impact), which causes uneven force on the material during the crushing process, resulting in poor crushing results. This single-stage crushing mode is difficult to adapt to ceramic powders of varying hardness and particle size, resulting in uneven particle size distribution after crushing.

[0004] Existing equipment typically uses a fixed or manually adjustable crushing gap, resulting in low precision and inability to precisely control the crushing effect. Due to the varying physical properties of different ceramic powders, existing equipment struggles to achieve flexible crushing gap adjustment, leading to unstable crushing results.

[0005] Traditional equipment relies primarily on single-directional shearing or impact, which can easily lead to material accumulation and clogging during the crushing process, resulting in incomplete crushing. Existing equipment lacks multi-stage shearing and extrusion mechanisms, resulting in uneven particle size distribution during crushing, affecting the processing quality of ceramic powders.

[0006] Existing equipment is mostly manually operated, requiring manual collection and cleaning of crushed ceramic powder, which is complex and inefficient. Frequent downtime for debugging increases the complexity of manual operation and maintenance difficulty.

[0007] In view of this, research and improvement are carried out on the existing problems, and a microwave dielectric ceramic powder raw material crushing device and method are provided to solve the current problems. The purpose is to achieve the purpose of solving the problems and improving the practical value through this technology. Summary of the Invention

[0008] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0009] To this end, the technical solution adopted by the present invention is: a microwave dielectric ceramic powder raw material crushing device and method, the crushing device of the present invention comprises: Drive seat: used to provide support and installation platform to ensure the stability of equipment operation.

[0010] Static grinding assembly: used to fix and support the grinding cone cap to achieve diversion and stable grinding of crushed materials.

[0011] Dynamic grinding component: crushes ceramic powder through rotation and shearing action.

[0012] The bottom of the drive seat is provided with mounting holes for fixing and supporting, which can provide a stable mounting base for the entire device.

[0013] Adjustment rods and a grinding chamber are fixedly mounted on the surface of the drive base. The adjustment rods are hydraulically mounted and evenly distributed around the periphery of the grinding chamber. The hydraulic system controls the raising and lowering of the adjustment rods to precisely adjust the height of the static grinding assembly. An input shaft is rotatably mounted on the surface of the drive base to drive the dynamic grinding assembly.

[0014] The static grinding assembly includes: Dynamic ring seat: fixedly installed inside the grinding chamber to support the guide ring and grinding cone cap.

[0015] The guide ring features threaded ridges on its surface, connecting to the threaded structure inside the rotating ring seat. The grinding gap can be precisely adjusted by rotating the guide ring. The grinding cone cap, a conical structure, faces the grinding cone in the rotating grinding assembly, creating the shearing and extrusion crushing zones.

[0016] The dynamic grinding assembly includes: The swing shaft assembly is connected to the input shaft via a core shaft and sleeve shaft. The annular grinding disc is fixedly connected to the bottom surface of the grinding cone, forming the crushing and shearing area. The grinding cone is conical in shape, creating a working gap between it and the grinding cone cap. Driven by the input shaft, the rotation creates a rolling and shearing action on the annular grinding disc.

[0017] Eccentric tooth ring: driven by the input shaft, it rotates eccentrically. A counterweight is installed on the surface of the eccentric tooth ring, located on the other side of the core shaft that deviates from the center of the circle, to balance the centrifugal force during rotation and ensure the stability of the crushing process.

[0018] The bottom surface of the drive seat is provided with a discharge port that is connected to the inner cavity of the grinding chamber. During the grinding process, the crushed ceramic powder is automatically discharged through the discharge port, reducing manual operation and improving production efficiency.

[0019] The adjustment lever, controlled by a hydraulic system, precisely adjusts the gap between the static and dynamic grinding components. The guide ring, connected to the inner thread of the dynamic ring seat via the threaded ridge, further fine-tunes the grinding gap to suit the processing requirements of different materials.

[0020] The beneficial effects achieved by the present invention are: 1. In the present invention, through the cooperation between the dynamic grinding assembly and the static grinding assembly, the eccentric rotating structure and the shearing and extrusion effects are utilized to crush the ceramic powder step by step during the grinding process, and the particle size after crushing is more uniform. The multi-stage shearing and extrusion effects are adopted, and the convex design of different particle densities on the grinding ring surface is combined to ensure a more efficient crushing effect.

[0021] 2. In the present invention, the height of the static grinding assembly is precisely controlled by controlling the adjustment rod through the hydraulic system, ensuring the flexibility and accuracy of the grinding gap adjustment. The grinding gap can be further precisely adjusted through the threaded structure connection between the guide ring and the dynamic ring seat to meet the processing requirements of different materials and different particle sizes.

[0022] 3. In the present invention, the multi-stage shearing and extrusion effect between the grinding cone and the grinding cone cap ensures the uniform crushing of the ceramic powder. The stepped grinding ring surface and the grinding protrusion structure with different densities make the particles subject to different degrees of shearing and extrusion during the downward process, ultimately achieving precise control of the particle size. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure 2 A schematic diagram of the surface structure of a drive seat according to an embodiment of the present invention; Figure 3 This is a structural diagram of a dynamic ring seat and a guide ring according to an embodiment of the present invention. Figure 4 A schematic diagram of the cross-sectional structure of an embodiment of the present invention is shown in FIG. Figure 5 This is a schematic diagram of the structure of the drive seat and the dynamic grinding assembly according to an embodiment of the present invention. Figure 6 This is a schematic diagram of the exploded structure of the pendulum shaft assembly according to an embodiment of the present invention. Figure 7 This is a schematic diagram of the structure of the guide ring and the grinding cone cap according to an embodiment of the present invention. Figure 8 This is a schematic structural diagram of a dynamic grinding assembly according to an embodiment of the present invention.

[0024] Reference numerals: 100, drive seat; 110, adjustment rod; 120, grinding chamber; 130, input shaft; 121, guide pin; 200, static grinding assembly; 210, dynamic ring seat; 220, guide ring; 230, grinding cone cap; 240, grinding ring; 211, guide hole; 221, screw edge; 300, dynamic grinding assembly; 310, swing shaft group; 320, grinding cone; 330, ring grinding disc; 311, core shaft; 312, sleeve shaft; 313, eccentric gear ring. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0026] It is to be understood that these descriptions are illustrative only and are not intended to limit the scope of the invention.

[0027] The following is combined with Figures 1-8 Some embodiments of the present invention provide a device and method for crushing microwave dielectric ceramic powder raw materials.

[0028] The following describes in detail the specific embodiments of a microwave dielectric ceramic powder raw material crushing device and method of the present invention in conjunction with the drawings and claims.

[0029] like Figure 1 As shown, the present invention provides a microwave dielectric ceramic powder raw material crushing device, which includes: a driving seat 100, a static grinding assembly 200, and a dynamic grinding assembly 300.

[0030] The driving seat 100 is the bottom supporting structure of the device, and has mounting holes at the bottom for fixing and supporting, which can provide a stable installation foundation for the entire device.

[0031] The surface of the driving seat 100 is fixedly mounted with an adjusting rod 110 and a grinding chamber 120. The adjusting rod 110 is a hydraulic rod structure, evenly distributed on the periphery of the grinding chamber 120, and is used to achieve height adjustment of the static grinding assembly 200 during operation.

[0032] The driving seat 100 is rotatably mounted with an input shaft 130. The input shaft 130 is engaged with the dynamic grinding assembly 300 through the eccentric gear ring 313, thereby driving the dynamic grinding assembly 300 to rotate and perform grinding operations.

[0033] like Figure 2 and Figure 3 As shown, the static grinding assembly 200 includes: a dynamic ring seat 210, a guide ring 220, and a grinding cone cap 230 fixed to the bottom surface of the guide ring 220.

[0034] The guide ring 220 is provided with a screw ridge 221 on its surface for connecting with the threaded structure on the inner side of the movable ring seat 210. By rotating the guide ring 220, the size of the grinding gap can be adjusted to meet the processing requirements of different materials.

[0035] The outer periphery of the movable ring seat 210 is provided with a plurality of guide holes 211, and the outer periphery of the surface of the grinding chamber 120 is provided with a plurality of guide pins 121 corresponding to the guide holes 211. The guide pins 121 are slidably sleeved in the guide holes 211 to guide the movable ring seat 210 to maintain stability and accuracy during the lifting process.

[0036] The grinding cone cap 230 has a conical structure and is arranged opposite to the grinding cone 320 in the dynamic grinding assembly 300 to form a working surface for crushing ceramic powder.

[0037] The dynamic grinding assembly 300 includes a swing shaft assembly 310 , a ring grinding disc 330 , and a grinding cone 320 fixed to the surface of the swing shaft assembly 310 .

[0038] The oscillating shaft assembly 310 includes a core shaft 311, a sleeve shaft rod 312, and an eccentric gear ring 313 fixedly sleeved on the surface of the sleeve shaft rod 312. The core shaft 311 engages with the input shaft 130 through the sleeve shaft rod 312, driving the annular grinding disc 330 and the grinding cone 320 to rotate synchronously.

[0039] The grinding cone 320 is conical in shape, with its bottom connected to the annular grinding disc 330. When the input shaft 130 drives the eccentric ring gear 313 to rotate, the grinding cone 320 rolls and squeezes against the annular grinding disc 330, thereby crushing the microwave dielectric ceramic powder. A semicircular counterweight is provided on the surface of the eccentric ring gear 313, located on the other side of the core shaft 311, offset from the center. This counterweight balances the centrifugal force during rotation and ensures the stability of the grinding operation.

[0040] A grinding ring 240 is fixedly mounted on the bottom surface of the static grinding assembly 200. A grinding gap is formed between the bottom surface of the grinding ring 240 and the annular grinding disc 330, which is arranged obliquely along the surface of the annular grinding disc 330. During the grinding process, the ceramic powder is sheared and squeezed in the grinding gap, gradually breaking it into the desired particle size.

[0041] The surfaces of the grinding cone 320 and the grinding cone cap 230 are provided with several stepped grinding surfaces. These surfaces are provided with grinding protrusions of varying particle density, with the density increasing gradually from top to bottom. During the rotation and extrusion process, the ceramic powder is finely crushed through stepwise extrusion and shearing between the different grinding surfaces.

[0042] The bottom surface of the grinding chamber 120 is fixedly connected to the surface of the drive base 100. A discharge port is formed on the bottom surface of the drive base 100 and communicates with the inner cavity of the grinding chamber 120. During the grinding process, the crushed ceramic powder can be automatically discharged through the discharge port, reducing manual intervention and improving processing efficiency.

[0043] The adjustment rod 110 is a hydraulic structure, forming a stable support structure between the drive base 100 and the dynamic ring seat 210. Adjusting the hydraulic pressure allows the static grinding assembly 200 to be raised or lowered, thereby controlling the size of the grinding gap. During adjustment, the guide ring 220 is threadedly connected to the inner side of the dynamic ring seat 210 via the screw ridges 221, enabling precise adjustment. The guide pin 121 cooperates with the guide hole 211 to achieve vertical movement of the dynamic ring seat 210.

[0044] In the present invention, the input shaft 130 drives the eccentric gear ring 313 to rotate, thereby driving the eccentric movement of the core shaft 311 and sleeve shaft 312. The grinding cone 320 creates a rolling and shearing action on the annular grinding disc 330, gradually crushing the ceramic powder between the grinding ring 240 and the grinding cone cap 230. By adjusting the position of the guide ring 220, the grinding gap can be precisely controlled to meet the crushing requirements of different particle sizes. The crushed ceramic powder is finally discharged from the discharge port, completing the entire crushing process.

[0045] The working principle and use process of the present invention: 1. Initial Adjustment: Use the adjustment rod 110 to control the height of the static grinding assembly 200 and adjust the gap between the grinding cone 320 and the grinding cone cap 230. Adjust the threaded connection between the guide ring 220 and the dynamic ring seat 210 according to the required material particle size to further fine-tune the grinding gap. Start the hydraulic system and confirm that the adjustment rod 110 moves smoothly. By rotating the input shaft 130, check the meshing between the eccentric gear ring 313 and the sleeve shaft 312 to confirm that the grinding assembly rotates smoothly.

[0046] 2. Start the grinding operation: Add the microwave dielectric ceramic powder raw material through the feed port at the top of the guide ring 220. Connect an external drive device to drive the input shaft 130 to rotate, which in turn drives the eccentric gear ring 313 to rotate, driving the dynamic grinding assembly 300 to start working. The grinding cone 320 forms an eccentric swing and shearing effect on the annular grinding disc 330, gradually crushing the ceramic powder. The powder is subjected to multi-stage shearing and extrusion on the conical surface and is gradually crushed into fine particles. The gap between the bottom surface of the grinding ring 240 and the top surface of the annular grinding disc 330 is arranged in an oblique direction, so that the ceramic powder generates a stronger crushing force during the shearing process.

[0047] 3. Gap Fine-Tuning and Optimization: During the grinding process, monitor the powder crushing effect. If the particle size is too large or uneven, fine-tune the gap by adjusting the connection between the guide ring 220 and the dynamic ring seat 210. Alternatively, adjust the adjustment rod 110 through the hydraulic system to further adjust the gap between the grinding components to meet the crushing requirements of different powders.

[0048] 4. Automatic discharge: After grinding is completed, the crushed ceramic powder is automatically discharged through the discharge port at the bottom of the grinding chamber 120.

[0049] In summary, the present invention provides a device and method for crushing microwave dielectric ceramic powder raw materials, the core working principle of which is based on: Rotational grinding: The input shaft 130 drives the dynamic grinding assembly 300 to rotate, and the eccentric gear ring 313 is used to achieve shearing and squeezing between the annular grinding disc 330 and the grinding cone 320 to crush the microwave dielectric ceramic powder.

[0050] Gap adjustment: The gap between the static grinding assembly 200 and the dynamic grinding assembly 300 is adjusted by the lifting and lowering movement of the adjustment rod 110 to meet the processing requirements of different particle sizes.

[0051] Material guiding and positioning: The cooperation between the guide ring 220 and the dynamic ring seat 210 ensures the guidance and uniform distribution of materials in the grinding area, avoiding material accumulation or deviation.

[0052] Discharge process: The crushed ceramic powder is automatically discharged through the discharge port, reducing manual intervention and improving processing efficiency.

[0053] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0054] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A microwave dielectric ceramic powder raw material crushing device, characterized in that: include: A driving seat (100), a static grinding assembly (200) and a dynamic grinding assembly (300); an adjusting rod (110) and a grinding chamber (120) are fixedly mounted on the surface of the driving seat (100); a plurality of the adjusting rods (110) are evenly arranged on the outer periphery of the grinding chamber (120) in a circumferential direction; and an output end of the grinding chamber (120) is fixedly connected to the surface of the static grinding assembly (200) for lifting and lowering the height of the static grinding assembly (200); an input shaft (130) is rotatably mounted on the surface of the driving seat (100); the dynamic grinding assembly (300) comprises: a swing shaft group (310), an annular grinding disc (330) and a grinding cone (320) fixed to the surface of the swing shaft group (310); the grinding cone (320) is conical and the outer periphery of the bottom surface is fixedly connected to the annular grinding disc (330); the swing shaft group (310) comprises: a core shaft (311), a sleeve shaft rod (312) and an eccentric tooth ring (313) fixedly sleeved on the surface of the sleeve shaft rod (312); the inner side of the sleeve shaft rod (312) is provided with a sleeve shaft hole that deviates from the axis and is arranged in an oblique direction, the bottom end of the core shaft (311) is movably sleeved on the inner side of the sleeve shaft hole, one end of the input shaft rod (130) is meshed with the surface of the eccentric tooth ring (313) for transmission, and the static grinding assembly (200) includes: a dynamic ring seat (210), a guide ring ( 220) and a grinding cone cap (230) fixed to the bottom surface of the guide ring (220); the surface of the guide ring (220) is provided with a screw ridge (221) for being threadedly connected to the inner side of the dynamic ring seat (210); the grinding cone cap (230) is conical and arranged relative to the surface of the grinding cone (320); the bottom surface of the static grinding assembly (200) is fixedly mounted with a grinding ring (240) arranged on the surface of the counter-ring grinding disc (330).

2. The microwave dielectric ceramic powder raw material crushing device according to claim 1, characterized in that: The outer periphery of the movable ring seat (210) is provided with a plurality of guide holes (211), and the outer periphery of the surface of the grinding chamber (120) is provided with a plurality of guide pins (121) corresponding one to one with the guide holes (211). The guide pins (121) are slidably sleeved on the inner sides of the guide holes (211) to guide the lifting movement of the movable ring seat (210).

3. The microwave dielectric ceramic powder raw material crushing device according to claim 1, characterized in that: The inner cavity of the movable ring seat (210) is in the shape of an inverted cone for guiding the material to slide downward, the inner side of the grinding cone cap (230) is in the shape of a cone, and the oblique taper of the grinding cone cap (230) is greater than the oblique taper of the surface of the grinding cone (320), so that the gap between the grinding cone cap (230) and the grinding cone (320) gradually decreases from top to bottom.

4. The microwave dielectric ceramic powder raw material crushing device according to claim 1, characterized in that: A grinding gap is provided between the bottom surface of the grinding ring (240) and the top surface of the ring grinding disc (330), and the grinding gap is arranged obliquely upward along the surface of the ring grinding disc (330).

5. The microwave dielectric ceramic powder raw material crushing device according to claim 1, characterized in that: The surface of the grinding cone (320) and the surface of the grinding cone cap (230) are provided with a plurality of stepped grinding annular surfaces, the surfaces of the grinding annular surfaces are provided with grinding protrusions with different particle densities, and the particle density of each grinding annular surface increases step by step from top to bottom.

6. The microwave dielectric ceramic powder raw material crushing device according to claim 1, characterized in that: The bottom surface of the grinding chamber (120) is connected to the surface of the driving seat (100), and the bottom surface of the driving seat (100) is provided with a discharge port for communicating with the inner cavity of the grinding chamber (120).

7. The microwave dielectric ceramic powder raw material crushing device according to claim 1, characterized in that: A counterweight is provided on the surface of the eccentric tooth ring (313), and the counterweight is in a semicircular arc shape and is located on the other side of the core shaft (311) that deviates from the center.

8. The microwave dielectric ceramic powder raw material crushing device according to claim 1, characterized in that: The adjusting rod (110) is a hydraulic rod structure and is evenly arranged in a circumferential direction on the outer periphery of the dynamic ring seat (210) and the driving seat (100). The guide ring (220) is screwed into the inner side of the dynamic ring seat (210) via a surface screw thread edge (221) to adjust the distance between the grinding ring (240) and the ring grinding disc (330).

9. A method for crushing microwave dielectric ceramic powder raw materials, characterized in that: The microwave dielectric ceramic powder raw material crushing device according to claims 1 to 8 comprises the following steps: Initialization adjustment: Control the height of the static grinding assembly (200) through the adjustment rod (110) to adjust the gap between the grinding cone (320) and the grinding cone cap (230); adjust the degree of threaded connection between the guide ring (220) and the dynamic ring seat (210) according to the material particle size requirements to further finely control the grinding gap; start the hydraulic system to confirm whether the lifting and lowering movement of the adjustment rod (110) is smooth; check the meshing effect between the eccentric gear ring (313) and the sleeve shaft (312) by rotating the input shaft (130) to confirm that the grinding assembly rotates smoothly; The grinding operation begins: microwave dielectric ceramic powder raw materials are added through the feed port at the top of the guide ring (220); an external driving device is connected to drive the input shaft (130) to rotate, thereby driving the eccentric gear ring (313) to rotate, and driving the dynamic grinding assembly (300) to start working; the grinding cone (320) forms an eccentric swing and shearing action on the annular grinding disc (330), gradually crushing the ceramic powder; the powder is subjected to multi-stage shearing and extrusion on the conical surface, and is gradually crushed into fine particles; the gap between the bottom surface of the grinding ring (240) and the top surface of the annular grinding disc (330) is arranged along an oblique direction, so that the ceramic powder generates a stronger crushing force during the shearing process; Gap fine-tuning and optimization: During the grinding process, the powder crushing effect is monitored; if the particle size is too large or uneven, the gap is fine-tuned by adjusting the connection between the guide ring (220) and the dynamic ring seat (210); the gap between the grinding components is further adjusted by adjusting the adjustment rod (110) through the hydraulic system to meet the crushing requirements of different powders; Automatic discharge: After grinding is completed, the crushed ceramic powder is automatically discharged through the discharge port at the bottom of the grinding chamber (120).

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