Material pulverizing and grinding device

Abstract

The application provides a material crushing and grinding device, and relates to the technical field of crushing equipment. The device comprises a device shell, an isolation plate fixedly arranged in the inner cavity of the device shell to separate the inner cavity of the device shell into an upper chamber and a lower chamber, a crushing chamber cylinder arranged in the upper chamber, a crushing chamber formed in the crushing chamber cylinder, a cutter assembly arranged in the crushing chamber, a planetary gear train comprising a sun gear arranged below the crushing chamber cylinder and a plurality of planetary gears engaged with the gear teeth of the sun gear, an inner tooth ring fixedly arranged on the inner wall of the crushing chamber, the gear teeth of the inner tooth ring being engaged with the gear teeth of the plurality of planetary gears, a driving device arranged in the lower chamber, and a cutter shaft of the cutter assembly, the cutter shaft passing through the rotation shaft center of the sun gear and being fixedly connected with the rotation shaft of the sun gear, the end of the cutter shaft passing through the isolation plate and being fixedly connected with the driving output end of the driving device. The application can effectively improve the crushing and grinding effect, improve the efficiency and reduce the power consumption.

Description

Technical Field

[0001] This invention relates to the field of crushing equipment technology, and specifically to a material crushing and grinding device. Background Technology

[0002] A grinding mill is a device used to pulverize dry materials. It can crush large solid raw materials to the required size for subsequent use. In the use of general-purpose grinding mills, traditional material crushers, when rotating at high speed, cause larger particles to adhere tightly to the inner wall of the grinding chamber due to the centrifugal force of the motor-driven blades. This necessitates manual opening of the equipment cover for stirring during the grinding process, which can lead to equipment jamming. The grinding and pulverizing effect is unsatisfactory, and the process is cumbersome and time-consuming. Furthermore, repeated start-ups and stops increase power consumption and raise the risk of workers being cut by the blades. Summary of the Invention

[0003] In view of this, the present application provides a material crushing and grinding device to improve crushing and grinding effects, increase efficiency, and reduce power consumption.

[0004] This application provides the following technical solution: a material crushing and grinding device, comprising:

[0005] The equipment housing has an internal cavity in which a partition plate is fixedly installed, which divides the internal cavity of the equipment housing into an upper chamber and a lower chamber.

[0006] A grinding chamber cylinder is disposed in the upper chamber. A bottom plate is provided at the bottom of the grinding chamber cylinder, and a grinding chamber for grinding is formed inside. A blade assembly is disposed in the grinding chamber.

[0007] The planetary gear train includes a sun gear disposed below the base plate and a plurality of planet gears disposed around the sun gear and meshing with the teeth of the sun gear; the planetary gear train also includes an internal gear ring fixed circumferentially to the inner wall of the crushing chamber cylinder, the teeth of the internal gear ring meshing with the teeth of the plurality of planet gears;

[0008] A drive device is disposed in the lower chamber; the tool assembly includes a tool shaft and a tool fixed on the tool shaft, the tool shaft passes through the center of the rotation axis of the sun gear and is fixedly connected to the rotation axis of the sun gear, and the end of the tool shaft passes through the partition plate and is fixedly connected to the drive output end of the drive device.

[0009] According to one embodiment of this application, the cutting tool includes a first cutting tool, a second cutting tool, and a third cutting tool that are fixedly spaced apart from top to bottom on the cutting tool shaft; the number of cutting edges of the first cutting tool is greater than the number of cutting edges of the second cutting tool and the third cutting tool, and the cutting edge thickness of the third cutting tool is greater than the cutting edge thickness of the first cutting tool and the second cutting tool.

[0010] According to one embodiment of this application, the first cutting tool is an octagonal blade, the second cutting tool is a square blade, and the third cutting tool is a fan-shaped blade.

[0011] According to one embodiment of this application, it further includes a plurality of lifting plates, the lifting plates having a spiral rising structure, and the plurality of lifting plates being fixed at intervals on the inner wall of the crushing chamber cylinder.

[0012] According to one embodiment of this application, it further includes a discharge pipe, the inlet end of which passes sequentially through the partition plate, the center of the planetary gear shaft and the bottom plate, and communicates with the crushing chamber, and the outlet end of which passes through the lower chamber and exits the equipment housing.

[0013] According to one embodiment of this application, it further includes a filter screen, which is fixedly disposed at the inlet end of the discharge pipe.

[0014] According to one embodiment of this application, a first rolling bearing is further provided between the device housing and the crushing chamber cylinder, wherein the outer ring of the first rolling bearing is fixedly connected to the device housing and the inner ring of the first rolling bearing is fixedly connected to the crushing chamber cylinder.

[0015] According to one embodiment of this application, a second rolling bearing is further provided between the isolation plate and the tool shaft, wherein the outer ring of the second rolling bearing is fixedly connected to the isolation plate and the inner ring of the second rolling bearing is fixedly connected to the tool shaft.

[0016] According to one embodiment of this application, the driving device is a motor, and the drive output end of the motor is fixedly connected to the end of the tool shaft via a coupling.

[0017] According to one embodiment of this application, an equipment cover is provided on the top opening of the device housing.

[0018] Compared with the prior art, the beneficial effects of the embodiments of the present invention include at least the following:

[0019] (1) The embodiments of the present invention utilize a planetary gear system, the function and purpose of which is to use a single power source to simultaneously drive the grinding cutter and the inner cylinder of the grinding chamber, and through gear engagement to reduce speed, make the inner cylinder of the grinding chamber rotate at a speed slower than the cutter shaft. This not only achieves cyclic stirring and grinding, improving the grinding effect, but also prevents the material from adhering to the inner wall of the grinding chamber during rotation. The entire grinding process does not require manual intervention. Furthermore, the entire transmission system has a compact structure, small size, and reliable performance.

[0020] (2) The three different grinding blades in this embodiment of the invention have different cutting performance. The fan-shaped blade has a large area and a small installation gap with the bottom of the crushing chamber, which can simultaneously perform cutting and grinding; the four-cornered blade is in the middle, with a sharp cutting surface, which can perform conventional cutting; the octagonal blade has more grooves, resulting in higher cutting efficiency. The novel blade of this invention can adapt to the crushing and grinding of various types of raw materials, and has stronger applicability.

[0021] (3) The inner wall of the crushing chamber is welded with a spiral lifting plate to realize continuous material circulation and crushing, which can significantly reduce manual intervention.

[0022] (4) In this embodiment of the invention, the motor is located at the bottom, which reduces the workload when adding materials during each work process, reduces the consumption of manpower and material resources, reduces costs, and improves efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a cross-sectional structural diagram of the material crushing and grinding device according to an embodiment of the present invention;

[0025] Figure 2 This is a top view schematic diagram of the planetary gear train according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the tool assembly structure according to an embodiment of the present invention;

[0027] Among them, 1-grinding chamber, 2-grinding chamber cylinder, 3-equipment shell, 4-planetary gear train, 4-1-planetary gear, 4-2-sun gear, 4-3-internal gear ring, 5-first rolling bearing, 6-isolation plate, 7-filter screen, 8-discharge pipe, 9-drive motor, 10-coupling, 11-second rolling bearing, 12-cutter shaft, 12-1-fan-shaped blade, 12-2-square blade, 12-3-octagonal blade, 13-equipment cover, 14-lifting plate. Detailed Implementation

[0028] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0029] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] like Figure 1 As shown, an embodiment of the present invention provides a material crushing and grinding device, comprising:

[0031] The equipment includes a housing 3, with a partition plate 6 fixedly installed inside the housing 3, dividing the housing 3 into an upper chamber and a lower chamber; a grinding chamber cylinder 2, located in the upper chamber, with a bottom plate at the bottom, forming a grinding chamber 1 for grinding; and a blade assembly inside the grinding chamber 1; and a planetary gear train 4, including a sun gear 4-2 located below the bottom plate, and multiple planetary gears arranged around the sun gear 4-2 and meshing with its teeth. The planetary gear train 4 also includes an internal gear ring 4-3 circumferentially fixed to the inner wall of the crushing chamber cylinder 2, the teeth of which mesh with the teeth of the multiple planetary gears 4-1; a drive device, which is disposed in the lower chamber; the cutter assembly includes a cutter shaft 12 and cutters fixed on the cutter shaft 12, the cutter shaft 12 passing through the center of the rotation axis of the sun gear 4-2 and fixedly connected to the rotation axis of the sun gear 4-2, and the end of the cutter shaft 12 passing through the partition plate and fixedly connected to the drive output end of the drive device. Additionally, an equipment cover 13 is provided on the top opening of the equipment housing 3, constituting a complete crushing and grinding device in this embodiment. Material enters the crushing chamber 1 through the opened equipment cover 13, and begins operation after the equipment cover 13 is closed and the drive device is turned on.

[0032] In this embodiment, the cutting tool includes a first cutting tool, a second cutting tool, and a third cutting tool that are fixed at intervals from top to bottom on the cutting tool shaft 12; the number of cutting edges of the first cutting tool is greater than the number of cutting edges of the second cutting tool and the third cutting tool, and the cutting edge thickness of the third cutting tool is greater than the cutting edge thickness of the first cutting tool and the second cutting tool.

[0033] like Figure 3 As shown, in this preferred embodiment, the first blade is an octagonal blade 12-3, the second blade is a square blade 12-2, and the third blade is a fan-shaped blade 12-1. This design incorporates three different rotating blades. The fan-shaped blade 12-1 is located at the bottom of the grinding chamber 1, and its gap with the bottom is adjustable, allowing it to be slightly larger than the diameter of acceptable particles. The fan-shaped blade 12-1 is thicker, providing a larger contact area with the material, enabling grinding while grinding. The square blade 12-2 is in the middle; increasing the number of blades effectively reduces particle diameter, but results in a higher centrifugal speed. Therefore, the octagonal blade 12-3 is positioned at the top. This embodiment of the invention uses three different rotating blade shapes for targeted grinding based on different powder particle sizes. The three different grinding blades have different cutting performance. The fan-shaped blade 12-1 has a large area and a small installation gap with the bottom of the crushing chamber 1, which can simultaneously perform cutting and grinding. The square blade 12-2 is in the middle and has a sharp cutting surface, which can perform conventional cutting. The octagonal blade 12-3 has more grooves and higher cutting efficiency, which can control the powder particle size to below 20μm.

[0034] In one embodiment of the present invention, a plurality of lifting plates 14 are further included. The lifting plates 14 have a spiral upward structure, and the plurality of lifting plates 14 are fixed at intervals on the inner wall of the crushing chamber cylinder 2. The lifting plates 14 are rigidly connected to the inner wall of the crushing chamber cylinder 2, which can be achieved by welding. In this embodiment, the crushing chamber cylinder 2 and the tool assembly rotate separately under the drive of the driving device. The material is not easily attached to the cylinder wall during the crushing process, and there is no need for manual stirring during the crushing process. In addition, the spiral upward lifting plates 14 are welded to the inner wall of the crushing chamber cylinder 2. The lifting plates 14 continuously lift the material in the crushing chamber 1 from the bottom to the top, and then fall at the top of the lifting plate, where it is repeatedly crushed by the blades, which can greatly improve the crushing and grinding effect.

[0035] The material crushing and grinding device of this invention adopts a novel design system. The main body of the device is a cylindrical structure with an inner and outer wall. The outer wall provides protection and fixation, while the inner wall, planetary gear system, and other transmission mechanisms form a circulation system. A spirally rising lifting plate is designed on the inner side. In this embodiment, the driving device uses a drive motor 9, and the grinding mechanism is a shaft system connected to the drive motor 9 via a coupling 10. The shaft system is equipped with various rotating blades to grind particles of different sizes, achieving material circulation and fine grinding.

[0036] A planetary gear train is a planetary gear system with only one degree of freedom. It is a coaxial transmission device (i.e., the output axis coincides with the input axis), employing several identical planetary gears evenly distributed around the central gear. Planetary gear trains are an advanced gear transmission mechanism with advantages such as compact structure, small size, light weight, high load-bearing capacity, wide power transmission range and transmission range, low operating noise, high efficiency, and long service life.

[0037] In this embodiment, the blade crushes the material in the crushing chamber 1, such as... Figure 2 As shown, the planetary gear train 4 consists of planetary gears 4-1, a sun gear 4-2, and an internal gear ring 4-3. The sun gear 4-2 drives the planetary gear train, and the planetary gears 4-1 drive the internal gear ring 4-3. The internal gear ring 4-3 is rigidly connected to the crushing chamber cylinder 2, which can be achieved by welding. Gears reduce speed and increase output power by using different numbers of teeth. This embodiment combines the tool cutting system and the crushing chamber circulation system, and utilizes the planetary gear train to merge the circulation system and cutting system into the same power source, reducing equipment size and achieving economic efficiency. Furthermore, the drive motor directly drives the cutter assembly, achieving a relatively high speed. Through gear reduction, the inner cylinder of the crushing chamber rotates at a speed slower than the cutter shaft. With the assistance of the lifting plate 14, not only is circulating stirring and crushing achieved, improving the crushing effect, but the material also does not adhere to the inner wall of the crushing chamber during rotation. The entire crushing and grinding process requires no manual intervention, and the equipment operates smoothly and reliably.

[0038] In this embodiment, a discharge pipe 8 is also included. The inlet end of the discharge pipe 8 passes sequentially through the partition plate 6, the center of the rotating shaft of the planetary gear 4-1, and the bottom plate, and communicates with the crushing chamber 1. The outlet end of the discharge pipe 8 passes through the lower chamber and exits the equipment housing 3. The discharge pipe 8 is connected through the center of the rotating shaft of the planetary gear 4-1, which makes the equipment structure compact.

[0039] To strictly control the particle size of the material, in one embodiment, a filter screen 7 is also included, which is fixedly installed at the inlet end of the discharge pipe 8. The material, after repeated crushing, gradually reaches the qualified particle size and will continuously pass through the filter screen 7 at the bottom of the crushing chamber 1 for filtration. The qualified particles will be discharged from the crushing equipment through the powder outlet.

[0040] To ensure the stability of the equipment during operation, in one embodiment, a first rolling bearing 5 is further included, disposed between the equipment housing 3 and the grinding chamber cylinder 2. The outer ring of the first rolling bearing 5 is fixedly connected to the equipment housing 3, and the inner ring of the first rolling bearing 5 is fixedly connected to the grinding chamber cylinder 2. Preferably, in this embodiment, two sets of the first rolling bearings 5 ​​are provided, respectively positioned above and below the upper chamber, to ensure the stability of the grinding chamber cylinder 2 during high-speed rotation and the grinding quality.

[0041] In one embodiment, a second rolling bearing 11 is further included, disposed between the isolation plate 6 and the tool shaft 12. The outer ring of the second rolling bearing 11 is fixedly connected to the isolation plate 6, and the inner ring of the second rolling bearing 11 is fixedly connected to the tool shaft 12. The second rolling bearing 11 serves as a rotational connection, while ensuring the stability of the motor rotation process.

[0042] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A material crushing and grinding device, characterized in that, include: The equipment housing has an internal cavity in which a partition plate is fixedly installed, which divides the internal cavity of the equipment housing into an upper chamber and a lower chamber. A grinding chamber cylinder is disposed in the upper chamber. A bottom plate is provided at the bottom of the grinding chamber cylinder, and a grinding chamber for grinding is formed inside. A blade assembly is disposed in the grinding chamber. The planetary gear train includes a sun gear disposed below the base plate and a plurality of planet gears disposed around the sun gear and meshing with the teeth of the sun gear; the planetary gear train also includes an internal gear ring fixed circumferentially to the inner wall of the crushing chamber cylinder, the teeth of the internal gear ring meshing with the teeth of the plurality of planet gears; A drive device is disposed in the lower chamber; the tool assembly includes a tool shaft and a tool fixed on the tool shaft, the tool shaft passes through the center of the rotation axis of the sun gear and is fixedly connected to the rotation axis of the sun gear, and the end of the tool shaft passes through the partition plate and is fixedly connected to the drive output end of the drive device; The cutting tool includes a first cutting tool, a second cutting tool, and a third cutting tool, which are fixed at intervals from top to bottom on the cutting tool shaft; the number of cutting edges of the first cutting tool is greater than the number of cutting edges of the second cutting tool and the third cutting tool, and the cutting edge thickness of the third cutting tool is greater than the cutting edge thickness of the first cutting tool and the second cutting tool.

2. The material crushing and grinding device according to claim 1, characterized in that, The first cutting tool has an octagonal blade, the second cutting tool has a square blade, and the third cutting tool has a fan-shaped blade.

3. The material crushing and grinding device according to claim 1, characterized in that, It also includes multiple lifting plates, which are spirally rising structures, and the multiple lifting plates are fixed at intervals on the inner wall of the crushing chamber cylinder.

4. The material crushing and grinding device according to claim 1, characterized in that, It also includes a discharge pipe, the inlet end of which passes through the partition plate, the center of the planetary gear shaft and the bottom plate in sequence, and communicates with the crushing chamber. The outlet end of the discharge pipe passes through the lower chamber and exits the outer shell of the equipment.

5. The material crushing and grinding device according to claim 4, characterized in that, It also includes a filter screen, which is fixedly installed at the inlet end of the discharge pipe.

6. The material crushing and grinding device according to claim 1, characterized in that, It also includes a first rolling bearing disposed between the equipment housing and the crushing chamber cylinder, wherein the outer ring of the first rolling bearing is fixedly connected to the equipment housing and the inner ring of the first rolling bearing is fixedly connected to the crushing chamber cylinder.

7. The material crushing and grinding device according to claim 1, characterized in that, It also includes a second rolling bearing disposed between the isolation plate and the tool shaft, wherein the outer ring of the second rolling bearing is fixedly connected to the isolation plate and the inner ring of the second rolling bearing is fixedly connected to the tool shaft.

8. The material crushing and grinding device according to claim 1, characterized in that, The driving device is a motor, and the drive output end of the motor is fixedly connected to the end of the tool shaft through a coupling.

9. The material crushing and grinding device according to claim 1, characterized in that, An equipment cover is provided on the top opening of the equipment housing.

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