CN116020618A

CN116020618A - Series feed type planetary grinder

Info

Publication number: CN116020618A
Application number: CN202210079511.1A
Authority: CN
Inventors: 白俊; 杨献楠
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2023-04-28

Abstract

The invention relates to a serial feed type planetary grinder, which consists of main components such as a grinding cylinder revolution and rotation motion input device, a compound grinding cylinder, a self-vibration device, a vibration regulator, a detachable grinding cylinder serial feed mechanism and the like, wherein the change of continuous grinding and intermittent grinding is realized by replacing a grinding cylinder cover of the compound grinding cylinder, the intermittent grinding can be used for optimizing a grinding formula and grinding operation parameters; the continuous grinding is used for test or production, and the optimal planetary grinding process conditions of various materials can be obtained, so that the ground materials have finer particles and higher efficiency.

Description

Series feed type planetary grinder

Technical Field

The invention relates to the field of nano-scale material scientific research, teaching and test equipment, in particular to a serial feed type planetary grinder.

Background

Along with the progress of scientific technology, the powder industry is continuously developing to ultra-fine, and the nano-scale field is already entered, which is one of the trends of the international powder technology development. While the world powder industry is developing to refinement, the important role of the industrial raw material deep processing technology in scientific research and industrial production is more and more fully embodied. Starting from crushing equipment, the method is gradually expanded to multiple aspects such as superfine classification, high-uniformity mixing, surface treatment, nano powder preparation and the like. The large-scale, diversified, energy-saving, continuous and automatic powder processing equipment is one of the development trends of the international powder industry, and a series of powder processing tests and production equipment are required.

After searching the prior art, the prior art finds that the horizontal planetary ball mill aggregate device publication No. CN104001593B, each grinding cylinder is parallel-connected and is provided with a spiral feeding mechanism. The technical scheme of the continuous production horizontal planetary ball mill with revolution and rotation separately driven is disclosed (bulletin) No. CN102151595A, which realizes the inverse rotation of revolution and rotation, and each grinding cylinder is used for parallel discharging. The planetary wheel (6) of the publication No. CN102172548A of the continuous horizontal planetary ball mill is meshed with the sun wheel (4) and the gear ring (20), the transmission with the gear ring is also used for realizing the reverse direction (reverse direction) of revolution and rotation, the materials are crushed under the impact force which is 10 to 20 times greater than that of the traditional ball mill in the centrifugal force field (the impact acceleration of 10 to 20 g), and all grinding cylinders are used for discharging in parallel. A planetary ball mill with sun gear, idler gear and grinding cylinder gear engaged mutually for transferring energy is disclosed in publication No. CN100371081C, and the main shaft power of said mill is transferred to idler gear by sun gear and then to grinding cylinder gear by idler gear to implement the reversal of revolution and rotation, and each grinding cylinder is parallelly connected for discharging. The autorotation device of the publication No. CN2491110Y of the wet continuous feeding and discharging planetary ball mill comprises a fixed gear, an intermediate gear and a barrel gear, wherein the intermediate gear is used for realizing revolution and autorotation reversal of grinding barrels, and each grinding barrel is used for discharging in parallel; the rotary disk of No. CN2459082Y is equipped with a rotary gear meshed with a fixed gear fixed on the main shaft via an intermediate gear, and the rotary gear is also used for realizing revolution and rotation reversal via the intermediate gear, and each grinding cylinder is used for parallel discharging. In the structure diagram, it can be seen that the gear on the main shaft of the planetary gear system is not directly meshed with the gear on the grinding cylinder, but meshed with the gear on the grinding cylinder shaft through the intermediate gear, so as to realize the reverse running of the grinding cylinder in revolution and rotation, and each grinding cylinder is discharged in parallel. The publication No. CN 211385255U of a continuous planetary ball mill is still a single pot grinding mode.

At present, various continuous feeding and discharging planetary ball milling production machines and test machines control the revolution and rotation of a grinding drum by an annular gear or a two-stage external gear, namely the revolution direction and the rotation direction of the grinding drum are opposite, so that grinding balls are thrown down in the grinding drum, and materials are crushed by ball impact, and the impact crushing mode is limited by a structure and a throwing mode, and the revolution and rotation speeds cannot be too high, otherwise, the grinding balls are adhered, the throwing grinding cannot be carried out or the power consumption is increased, the crushing efficiency cannot be improved, the planetary impact type grinding of the revolution and the rotation reversal of the grinding drum has the following mechanical relations: the revolution centrifugal force leads the grinding balls to point to the outward direction through the spindle center, the rotation centrifugal force leads the grinding balls to point to the outside of the grinding cylinder through the rotation axis, the Golgi force leads the grinding balls to point to the inside of the grinding cylinder through the rotation axis, and the three forces have the mutually offset and restrained grinding ball mechanical relationship at any point in the grinding cylinder, so that the optimal grinding pressure is difficult to achieve. The grinding ball grinding force field of the throwing type planetary grinding is generally 10-30 times of the gravity of the grinding balls. Research shows that the powder has large newly generated surface area and high energy utilization rate under the extrusion and friction actions; the new surface area is small under the impact action, and the energy utilization rate is only one half of that of extrusion and grinding. In addition, impact is suitable for crushing brittle materials of larger diameter, while extrusion and grinding are suitable for crushing plastic materials of smaller diameter. When the particle diameter is larger, the brittle material is broken into a plurality of particles after one impact, the crushing effect is obvious, the increase of the delta value of the specific surface area of the tiny particles after the impact is smaller, the crushing effect is correspondingly reduced, the extrusion and grinding modes are that the surfaces of the particles are peeled off, or the particles become flat sheets, the smaller the particles are, the larger the surface area to be ground is, and if proper pressure is applied, obvious effects can be obtained. In addition, the current planetary ball mill with continuous feeding and discharging is single impact grinding, for example, a vibration planetary ball mill publication number CN113769842A is an intermittent discontinuous vibration planetary ball mill, the transmission of the grinding cylinder is realized by the connecting gear fixed on the transmission disc and the meshing planetary gear, and the connecting gear is fixed with the transmission disc, so that the same steering as the transmission disc, the meshing planetary gear realizes the reverse rotation of the grinding cylinder and the transmission disc, and the grinding cylinder with the intermediate carrier transmission structure or the inner gear ring transmission structure is opposite in revolution and rotation and is in throwing impact grinding. In addition, the vibration of the invention is generated by the vibration motor, the vibration structure is complex, and the energy consumption is increased.

At present, the feeding or discharging of each grinding cylinder of the domestic planetary ball milling continuous feeding and discharging patent is in a parallel connection mode, so that the feeding and discharging mode is adopted, the feeding and discharging structural members of each grinding cylinder are required to be identical in size in order to ensure the feeding consistency of each grinding cylinder, the processing precision requirement is high, and in order to ensure the feeding consistency, the spiral feeding and other complex structures are added, so that the movement weight is greatly increased, and the power consumption of transmission is increased. The parallel feeding and discharging mode has the same working state of each tank, cannot realize graded grinding, cannot optimize the grinding ball distribution of each tank, and is not beneficial to improving the grinding efficiency.

The grinding cylinder of the existing continuous planetary ball mill has no lining, and the lining of the grinding cylinder with the lining cannot be replaced at any time, so that the cost of the grinding cylinder is high, or the grinding cylinder with single material brings inconvenience to grinding different materials, or the cost of the grinding cylinder is high.

Disclosure of Invention

The invention aims to provide a serial feed type planetary grinder which adopts serial continuous and uniform feed, and has the advantages of high grinding efficiency, simple structure and convenient operation.

The technical scheme of the invention is as follows:

the utility model provides a tandem feed formula planetary mill, includes fixing base, revolution system, rotation system, compound grinding vessel, feeding mechanism, revolution system and rotation system are installed on the fixing base, revolution system drive compound grinding vessel revolves, rotation system drive compound grinding vessel rotates, revolution system includes the main shaft, and main shaft both ends are opened there is the main shaft passageway, and main shaft passageway is at a middle part of main shaft both ends respectively and is not UNICOM, rotation system includes the spin shaft, the spin shaft has axial through-hole, and compound grinding vessel is installed in the spin shaft.

The feeding mechanism comprises a main shaft rotary sealing joint, a main shaft channel, a main shaft, a grinding cylinder connecting pipe, a grinding cylinder rotary sealing joint, a grinding cylinder serial pipe and a through hole in the axial direction of a rotating shaft, wherein the main shaft rotary sealing joints are arranged at two ends of the main shaft, the feeding ports of the two main shaft rotary sealing joints are respectively connected with the feeding device and the receiving device, the grinding cylinder rotary sealing joints are arranged at two ends of the rotating shaft, one end of the main shaft, the grinding cylinder connecting pipe, the other end of the main shaft, the grinding cylinder rotary sealing joint, the other end of the grinding cylinder, the first rotating shaft, the grinding cylinder rotary sealing joint, the first rotating shaft, the second rotating shaft, the grinding cylinder serial pipe, the last rotating shaft and the main shaft channel, are fixedly connected.

The invention has the beneficial effects that:

1. the grinder has novel design, reasonable structure and convenient operation. When the grinding device works, the optimal motion mode is adopted, the grinding cylinder revolves and rotates in the same direction by rotation, and three forces of revolution centrifugal force, rotation centrifugal force and Golgi force are combined, so that the weight of the grinding ball can be 60-300 times, and the grinding force is greatly improved.

2. The grinding drums are connected in series, so that a continuous feeding structure is simplified, the feeding of the grinding drums is truly consistent, the grading grinding can be realized, and different grinding drums are matched with different balls, so that the grinding machine is more suitable for grinding superfine powder and nano-processing of powder.

3. The invention adopts self-vibration grinding, and the vibration amplitude and frequency of the vibration grinding can be adjusted by the vibration regulator, so that the vibration structure is simple, the powder is subjected to more reasonable compound grinding, the grinding efficiency is further improved, the grinding efficiency is higher, and the particle size of the powder is finer and more uniform.

4. The grinding cylinder body is internally lined with various materials such as stainless steel, alloy steel, hard alloy, tool steel, bearing steel, ceramic, agate, engineering plastic and the like, so that the grinding cylinder body can be replaced according to powder requirements during a test, the purity of the materials can be ensured, and the grinding cylinder body can be replaced after being worn in production, thereby saving the grinding cost.

5. The pore canal on the continuous grinding cylinder cover is a cross-shaped slit, so that the problem that the feeding is affected due to the fact that the pore canal is blocked by the grinding balls is avoided, and the feeding continuity is good.

6. The invention can be used for dry grinding and wet grinding, and various materials can be ground by one machine, thereby expanding the range of grinding materials.

7. The invention can be used for continuous grinding and intermittent grinding, and greatly facilitates the production and test of planetary grinding equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings may be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a tandem planetary grinder according to the present application.

Fig. 2 is a schematic diagram of a first homodromous transmission structure of the tandem planetary grinder.

Fig. 3 is a schematic view of a second homodromous transmission structure of the tandem planetary grinder.

Fig. 4 is a schematic diagram of a first ipsilateral tandem structure of the tandem planetary mill of the present application.

Fig. 5 is a schematic diagram of a second different side tandem configuration of the tandem planetary mill of the present application.

Fig. 6 is a schematic diagram of a third reverse drive side view of the tandem planetary mill of the present application.

Fig. 7 is a schematic diagram of a fourth reverse drive side view of the tandem planetary mill of the present application.

Fig. 8 is a schematic structural view of a composite grinding cylinder of the serial planetary grinder.

Fig. 9 is a schematic side view of a composite grinding cylinder structure of the tandem planetary grinder.

Fig. 10 is a schematic diagram of dynamics and kinematics of the planetary ball mill of the present application.

Fig. 11 is a diagram of ball force during revolution and automatic co-rotation.

Fig. 12 is a diagram of ball force during revolution and automatic reverse rotation.

The marks in the figure:

1. a fixing seat; 2. a revolution system; 3. a rotation system; 4. a composite grinding cylinder; 5. a feeding mechanism; 6. self-excitation device; 7. a vibration adjuster; 11. a base; 12. a left bracket; 13. a right bracket; 21. a main shaft; 22. a spindle channel; 23. a revolution plate; 24. a key; 25. a revolution driving device; 31. a perforated spin shaft; 32. a central transmission external gear; 33. self-rotating external gear; 34. a rotation driving device; 35. an intermediate gear; 36. a gear ring; 41. a metal cylinder; 42. a metal cylinder liner; 43. a metal cylinder cover; 44. a metal cylinder cover liner; 45. a screw; 46. a bolt; 47. a positioning pin; 48. a grinding ball; 49. a cross through hole; 51. a main shaft rotary sealing joint; 52. the main shaft is connected with the grinding cylinder; 53. a grinding cylinder rotary sealing joint; 54. the grinding drums are connected in series with the pipe.

Detailed Description

The invention relates to high-efficiency serial feed type planetary grinding equipment which is used for molecular chain breakage activation; nano superfine pulverizing of medicine, nutrition, health product, metal, non-metal inorganic matter and organic material; a nanocomposite; pigment and filler modification; a reactive additive; a high performance catalyst; activating a mineral fertilizer; chemical synthesis and separation; surface modification; synthesizing and preparing a biological ceramic raw material; mineral and waste treatment; a dispersion strengthened alloy structural material; a crystal form transformation; synthesizing a new phase; refining metal; separating rare metals; promoting the reduction reaction of the iron ore; synthesizing an organic-inorganic material; synthesizing an inorganic material; synthesizing a high polymer material; formation of organometallic Compounds, polymer: synthesis of organometallic compounds and the like; friction polymer generation; activating cement clinker; developing a novel building material; realizing the controllability of the microstructure of the material; the material is subjected to performance cutting to realize the functionalization. Controlling the sinterability of the ceramic material; development of electric and magnetic materials; for solid-solid; solid-liquid; solid-gas; liquid-liquid; liquid-gas interactions. Is a device for scientific research, teaching and test of nano-scale materials.

For the purpose of clearly showing the objects, technical solutions and product advantages of the present invention, the present invention will be described in further detail with reference to the accompanying drawings. It should be noted that the terms up, down, left and right in the azimuth of the present application are only for more clearly explaining the technology of the present application, and cannot be used as the protection scope of the claims.

The invention aims to provide serial feed type planetary grinding equipment which is high in efficiency, novel in design, simple in structure, convenient to operate and various in working modes. The equipment is used for continuous grinding for test or production, and can obtain the optimal planetary grinding process conditions of various materials, so that the ground materials have finer particles and higher efficiency.

The utility model provides a tandem feed formula planetary grinder, includes fixing base 1, revolution system 2, rotation system 3, compound grinding vessel 4, feeding mechanism 5, revolution system 2 and rotation system 3 are installed on fixing base 1, revolution system 2 drive compound grinding vessel 4 revolves, rotation system 3 drive compound grinding vessel 4 revolves, revolution system 2 includes main shaft 21, and main shaft 21 both ends are opened there is main shaft passageway 22, and main shaft passageway 22 is at main shaft 21 both ends each middle part UNICOM, rotation system 3 includes spin shaft 31, spin shaft 31 has axial through-hole, and compound grinding vessel 4 is installed on spin shaft 31.

The feeding mechanism 5 comprises a main shaft rotary sealing joint 51, a main shaft channel 22, a main shaft and grinding cylinder connecting pipe 52, a grinding cylinder rotary sealing joint 53, a grinding cylinder serial pipe 54 and an axial through hole in the rotating shaft 31, the main shaft rotary sealing joints 51 are arranged at two ends of the main shaft 21, feeding ports of the two main shaft rotary sealing joints 51 are respectively connected with a feeding device and a receiving device, and the feeding device and the receiving device can adopt any structure in the prior art and are not repeated in the application document. The grinding drum rotary sealing joint 53 is installed at the free end of the rotation shaft 31, one end of the main shaft and the grinding drum connecting pipe 52 is fixedly connected with one main shaft channel 22, the other end of the main shaft and the grinding drum rotary sealing joint 53 of the first rotation shaft 31 are connected, the grinding drum rotary sealing joint 53 of the other end of the first rotation shaft 31 is sequentially connected to the grinding drum rotary sealing joint 53 of the last rotation shaft 31 through the grinding drum serial pipe 54, and the grinding drum rotary sealing joint 53 of the last rotation shaft 31 is fixedly connected with the main shaft channel 22 of the other end of the main shaft through the main shaft and the grinding drum connecting pipe 52. A pressure gauge and a temperature gauge may be provided on the pipe.

The rotation system comprises a first mechanism which can drive the rotation shaft, the composite grinding cylinder and the revolution system to accelerate and rotate in the same direction at a fixed speed ratio; or a second mechanism which can drive the rotation shaft, the composite grinding cylinder and the revolution system to accelerate and rotate in the same direction with an adjustable speed ratio; or a third mechanism capable of driving the rotation shaft, the composite grinding cylinder and the revolution system to accelerate and reversely rotate at a fixed speed ratio; or a fourth mechanism which can drive the rotation shaft, the composite grinding cylinder and the revolution system to accelerate and reversely rotate at an adjustable speed ratio.

The revolution system and the rotation system have the following specific structures:

the revolution system 2 comprises a revolution driving device 25, a main shaft 21 and a revolution disc 23, wherein the revolution driving device 25 drives the main shaft to rotate, and the revolution disc 23 is fixedly arranged on the main shaft. The rotation system 3 comprises a rotation shaft 31 and a central transmission external gear 32, the rotation shaft 31 passes through the revolution disc 23 to be in bearing connection with the revolution disc 23, the composite grinding cylinder 4 is in flange connection on the rotation shaft 31, the main shaft drives the rotation shaft 31 and the composite grinding cylinder 4 to revolve through the revolution disc 23, one end of the rotation shaft 31 is provided with a rotation external gear 33, the rotation external gear 33 is meshed with the central transmission external gear 32, the rotation external gear 33 drives the rotation shaft 31 and the composite grinding cylinder 4 to rotate, and the rotation direction and the revolution direction of the composite grinding cylinder 4 are the same.

The main shaft of the revolution system 2 passes through the central hole of the central transmission external gear 32, the two ends of the main shaft are fixed on the fixed seat 1 through bearings, the central transmission external gear 32 of the rotation system 3 is fixed on the fixed seat 1, and the rotation external gear 33 is meshed with the central transmission external gear 32.

The rotation system 3 comprises a rotation driving device 34 and a central transmission external gear 32 which are fixed together, the rotation driving device 34 is connected with a main shaft bearing, and the rotation driving device 34 drives the central transmission external gear 32 to rotate. The main shaft of the revolution system 2 passes through the central hole of the central transmission external gear 32 and the central hole of the rotation driving device 34 and is in bearing connection with the fixed seat 1.

The revolution system 2 comprises a revolution driving device 25, a main shaft 21 and a revolution disc 23, wherein the revolution driving device 25 drives the main shaft to rotate, and the revolution disc 23 is fixedly arranged on the main shaft. The rotation system 3 comprises a rotation shaft 31, an intermediate gear and a central transmission external gear 32, wherein the rotation shaft 31 penetrates through the rotation disc 23 to be in bearing connection with the rotation disc 23, the composite grinding drum 4 is in flange connection with the rotation shaft 31, the main shaft drives the rotation shaft 31 and the composite grinding drum 4 to revolve through the rotation disc 23, the intermediate gear 35 is arranged on the rotation disc 23, the rotation external gear 33 is arranged at one end of the rotation shaft 31, the rotation external gear 33 is meshed with the intermediate gear 35, the intermediate gear 35 is meshed with the central transmission external gear 32, the rotation external gear 33 drives the rotation shaft 31 and the composite grinding drum 4 to rotate, and the rotation direction and the revolution direction of the composite grinding drum 4 are opposite.

The revolution system 2 comprises a revolution driving device 25, a main shaft 21 and a revolution disc 23, wherein the revolution driving device 25 drives the main shaft to rotate, and the revolution disc 23 is fixedly arranged on the main shaft. The rotation system 3 comprises a rotation shaft 31 and a gear ring 37, the rotation shaft 31 passes through the revolution disc 23 to be in bearing connection with the revolution disc 23, the composite grinding cylinder 4 is in flange connection with the rotation shaft 31, the main shaft drives the rotation shaft 31 and the composite grinding cylinder 4 to revolve through the revolution disc 23, and the gear ring 37 is fixedly connected with the fixed seat 1.

One end of the rotation shaft 31 is provided with a rotation external gear 33, the rotation external gear 33 is meshed with the gear ring, so that the rotation external gear 33 drives the rotation shaft 31 and the composite grinding drum 4 to rotate, and the rotation direction and the revolution direction of the composite grinding drum 4 are opposite.

The composite grinding cylinder 4 comprises a metal cylinder 41, a metal cylinder liner 42, a metal cylinder cover 43, a metal cylinder cover liner 44, screws 45 and bolts 46, wherein the metal cylinder cover 43 is connected to two ends of the metal cylinder 41 through bolts, a sealing ring is arranged between the metal cylinder 41 and the metal cylinder cover 43, the metal cylinder liner is arranged in the metal cylinder, the metal cylinder 41 is in interference fit or adhesion with the metal cylinder liner, a groove is formed in the inner side of the metal cylinder cover 43, the metal cylinder cover liner 44 is arranged in the groove, the metal cylinder cover liner 44 is in tight contact with the metal cylinder liner 42, the screws 45 are connected to the metal cylinder cover 43, and the front ends of the screws 45 are propped against the metal cylinder cover liner. The corresponding positions of the metal cylinder cover and the metal cylinder cover lining are respectively provided with a cross through hole 49. A locating pin 47 is provided for locating the metal cylinder liner.

The grinding balls 48 are placed in the composite grinding cylinder 4, the diameter of the grinding balls in the composite grinding cylinder 4 close to the feeding hole of the feeding device is larger than that of the grinding balls in the composite grinding cylinder 4 of the discharging hole of the feeding device, and the number of the grinding balls in the composite grinding cylinder 4 close to the feeding hole of the feeding device is smaller than that of the grinding balls in the composite grinding cylinder 4 of the discharging hole of the feeding device.

The fixed seat 1 comprises a base 11, a left bracket 12 and a right bracket 13 which are fixedly connected, the main shaft passes through the left bracket and the right bracket and is connected with the left bracket and the right bracket through bearings, the central transmission external gear 32 is welded and fixed or fixed on the inner side of the left bracket or the right bracket through bolts, and the main shaft passes through the central transmission external gear 32; the fixing seat 1 comprises a base 11, a left bracket 12 and a right bracket 13 which are fixedly connected, the main shaft penetrates through the left bracket and the right bracket and is connected with a left bracket and a right bracket bearing, the main shaft penetrates through a central hole of a central external gear, the central external gear is fixedly connected or connected with a rotation driving device 34 through bolts, and the rotation driving device 34 is connected with the main shaft bearing. The self-excitation device 6 is arranged on the revolution disc 23 of the revolution system 2, the self-excitation device 6 is an independent weight block or a weighting bolt, and the self-excitation device is fixed on the revolution disc 23, so that the center of gravity of the revolution disc 23 is deviated. The vibration regulator is fixedly connected below the fixed seat 1, the vibration regulator 7 is an elastic piece, and the vibration regulator 7 is a metal spring or a rubber shear damper or a damping damper.

The self-excitation device 6 is arranged on the self-excitation system 3, the self-excitation device 6 is an independent weight block and a bolt, and the weight block or the bolt is arranged on one or more self-rotation shafts 31 or the composite grinding drums 4 or the weights of grinding balls in different composite grinding drums 4 are different, so that the gravity center of the self-excitation system 3 is deviated. The vibration regulator 7 is fixedly connected below the fixed seat 1, the elastic piece of the vibration regulator 7 is a metal spring or a rubber shear damper or a damping damper.

The grinding cylinder serial pipe 54 communicates the grinding cylinder rotary seal joint 53 on the same side of the rotation shaft 31.

The grinding machine is a dry grinding machine or a wet grinding machine.

The present application is described in detail below with reference to the attached drawing figures:

as shown in fig. 1, the planetary grinder comprises a fixed seat 1, a revolution system 2, an automatic system 3, a composite grinding cylinder 4 and a feeding mechanism 5. The revolution system 2 and the rotation system 3 are arranged on the fixed seat 1, the revolution system 2 drives the composite grinding cylinder 4 to revolve, and the rotation system 3 drives the composite grinding cylinder 4 to rotate.

As shown in fig. 2-5, the revolution system 2 includes a spindle, two ends of the spindle are provided with spindle channels 22, the spindle channels 22 are not communicated with each other at a middle part of two ends of the spindle, the rotation system 3 includes a rotation shaft 31, the rotation shaft 31 is provided with an axial through hole, and the composite grinding cylinder 4 is mounted on the rotation shaft 31.

As shown in fig. 4-5, in continuous grinding, the feeding mechanism 5 includes a main shaft rotary seal joint 51, a main shaft channel 22, a main shaft and grinding tube connecting tube 52, a grinding tube rotary seal joint 53, a grinding tube serial tube 54, and an axial through hole of the rotating shaft 31, the main shaft rotary seal joints 51 are two, the main shaft rotary seal joints 51 are installed at two ends of the main shaft, the feeding ports of the two main shaft rotary seal joints 51 are respectively connected with the feeding device and the receiving device, the grinding tube rotary seal joints 53 are installed at the outer end of the rotating shaft 31, the main shaft is fixedly connected with one main shaft channel 22 at one end of the grinding tube connecting tube 52, the other end is connected with the grinding tube rotary seal joint 53 of the first rotating shaft 31, the grinding tube rotary seal joint 53 of the other end of the first rotating shaft 31 is connected with the grinding tube rotary seal joint 53 of the second rotating shaft 31 through the grinding tube serial tube 54, the grinding tube rotary seal joint 53 of the other end of the second rotating shaft 31 is connected with the third rotating shaft 31 through the grinding tube serial tube connecting tube 54, and so on, the grinding tube rotary seal joint 53 of the last rotating shaft 31 is connected with the main shaft through the main shaft rotary seal joint 22 fixedly connected with the other end of the rotating tube connecting tube 22. The main shaft rotary seal joint 51 and the grinding cylinder rotary seal joint 53 have the same structure, and a rotary joint of the prior art can be adopted.

The main shaft 21 and the grinding cylinder are respectively provided with two connecting pipes, one end of the connecting pipes is fixedly connected with the main shaft channel 22 at the inlet and outlet of the main shaft 21, and the other end of the connecting pipes is connected with the grinding cylinder rotary sealing joint 53 for conveying materials by the grinding cylinder. The grinding cylinder rotary sealing joints 53 are arranged on each rotating shaft 31 and the composite grinding cylinder 4, one rotating shaft 31 at each end and the total number of the rotating shafts are equal to twice the number of the composite grinding cylinders 4, and are used for rotary feeding of the grinding cylinders. The grinding cylinder serial pipes 54 connect the composite grinding cylinders 4 in series, the total number is the number of the composite grinding cylinders 4 minus 1, the serial connection method can be the serial connection of the same side rotating shafts 31 of two composite grinding cylinders 4 (as shown in serial connection pipelines in fig. 4), or the serial connection of different side rotating shafts 31 of two composite grinding cylinders 4 (as shown in serial connection pipelines in fig. 5), and the serial connection of the same side rotating shafts 31 is preferred, so that the grinding cylinder serial pipes 54 are shorter, the flow resistance is smaller, the grinding cylinder serial pipes 54 are fixed with the revolution system 2, and the revolution motion is carried out together with the revolution system 2. The main shaft rotary sealing joint 51 and the grinding cylinder rotary sealing joint 53 are detachably connected and can be quickly detached from the connecting piece; the main shaft, the grinding cylinder connecting pipe 52 and the grinding cylinder serial pipe 54 are all quick-screwing connectors with matched pipelines at two ends, the pipelines can be quickly disassembled, and the pipelines can be made of copper pipes, stainless steel pipes, plastic pipes, nylon pipes and the like.

The automatic serial charging mechanism can be applied to a grinder with the same revolution motion and rotation motion directions of the composite grinding drum 4, and can also be applied to a grinder with opposite revolution motion and rotation motion directions. The mill of the present application may be a dry mill or a wet mill.

The structure of the grinding machine in which the revolution motion and the rotation motion of the composite grinding cylinder 4 are the same will be described below by way of example with reference to the accompanying drawings:

as shown in fig. 2, the first transmission structure of the grinding machine comprises a fixed seat 1, a revolution system 2, a rotation system 3 and one or more compound grinding drums 4, wherein the revolution system 2 and an automatic system are installed on the fixed seat 1. The revolution system 2 comprises a revolution driving device, a main shaft and a revolution disc 23, wherein the revolution driving device drives the main shaft to rotate, the revolution disc 23 is fixedly arranged on the main shaft, and two ends of the main shaft are fixed on the fixed seat 1 through bearings.

The rotation system 3 comprises one or more rotation shafts 31 and a central transmission external gear 32, the central transmission external gear 32 of the rotation system 3 is fixedly arranged on the fixed seat 1, and a plurality of rotation external gears 33 are meshed with the central transmission external gear 32 to drive the rotation shafts 31, the compound grinding drums 4 and the revolution system 2 to accelerate and rotate in the same direction at a fixed speed ratio. The rotating shaft 31 passes through the rotating disc 23 and is in bearing connection with the rotating disc 23, the composite grinding cylinder 4 is in flange connection with the rotating shaft 31, and the main shaft drives the rotating shaft 31 and the composite grinding cylinder 4 to revolve through the rotating disc 23. One end of the rotation shaft 31 is provided with a rotation external gear 33, the rotation external gear 33 is meshed with a central transmission external gear 32 of the rotation system 3, so that the rotation external gear 33 drives the rotation shaft 31 and the composite grinding drum 4 to rotate, and the rotation direction and the revolution direction of the composite grinding drum 4 are the same. The main shaft is connected with the revolution plate 23 by a key 24, and the rotation shaft 31 is connected with the rotation external gear 33 by the key 24.

The grinding machine can adopt a vertical structure or a horizontal structure. Preferably, a horizontal structure is used.

As shown in fig. 3, the second structure of the grinder comprises a fixed base 1, a revolution system 2, a rotation system 3 and one or more compound grinding drums 4, wherein the revolution system 2 and an automatic system are installed on the fixed base 1. The revolution system 2 comprises a revolution driving device 25, a main shaft and a revolution table 23, wherein the revolution driving device 25 is fixed with the main shaft and drives the main shaft to rotate, and the revolution table 23 is fixedly arranged on the main shaft. The rotation system 3 comprises a rotation shaft 31, the rotation shaft 31 passes through the revolution disc 23 and is connected with a revolution disc bearing, the rotation shaft 31 is connected with the composite grinding cylinder 4 in a flange manner, and the main shaft drives the rotation shaft 31 and the composite grinding cylinder 4 to revolve through the revolution disc 23. The rotation system 3 comprises a rotation driving device 34 and a central transmission external gear 32, wherein the central transmission external gear 32 is connected with the rotation driving device 34 through bolts or fixedly, and the rotation driving device 34 is connected with a main shaft bearing. The center drive external gear 32 is meshed with the rotation external gear 33. One end of the rotation shaft 31 is provided with a rotation external gear 33, the rotation external gear 33 is meshed with a central transmission external gear 32 of the rotation system 3, so that the rotation external gear 33 drives the rotation shaft 31 and the composite grinding drum 4 to rotate, and the rotation direction and the revolution direction of the composite grinding drum 4 are the same. The main shaft is connected with the revolution plate 23 by a key, and the rotation shaft 31 is connected with the rotation external gear 33 by a key.

The revolution driving device 25 drives the main shaft to rotate, and then drives the revolution plate 23 to rotate, and the revolution plate 23 drives the rotation shaft 31 and the composite grinding cylinder 4 to rotate, so that the composite grinding cylinder 4 revolves. The rotation system 3 driving device drives the central transmission external gear 32 to rotate, the rotation direction of the central transmission external gear 32 is opposite to the revolution direction, the rotation external gear 33 on the rotation shaft 31 and the compound grinding drum 4 is directly meshed with the central transmission external gear 32 to change the direction, the rotation system is changed into the same-direction rotation of the rotation shaft 31 and the compound grinding drum 4 and the revolution system 2, and the revolution and rotation driving devices are driven by the variable frequency electric control device, so that the revolution system 2, the rotation shaft 31 and the compound grinding drum 4 are accelerated to rotate in the same direction at a continuously adjustable speed ratio.

The structure of the grinding machine in which the revolution motion and the rotation motion of the composite grinding cylinder 4 are opposite will be described by way of example with reference to the accompanying drawings:

as shown in fig. 6, in a third transmission structure of the grinding machine, the intermediate gear reversely transmits the side view structure, the revolution system 2 comprises a revolution driving device 25, a main shaft and a revolution disc 23, the revolution driving device 25 drives the main shaft to make a rotation motion, and the revolution disc 23 is fixedly arranged on the main shaft.

The rotation system 3 comprises a rotation shaft 31, an intermediate gear and a central transmission external gear 32, wherein the rotation shaft 31 penetrates through the revolution disc 23 to be in bearing connection with the revolution disc 23, the rotation shaft 31 is in flange connection with the composite grinding cylinder 4, the main shaft drives the rotation shaft 31 and the composite grinding cylinder 4 to revolve through the revolution disc 23, and the intermediate gear is arranged on the revolution disc 23. One end of the rotation shaft 31 is provided with a rotation external gear 33, the rotation external gear 33 is meshed with an intermediate gear, the intermediate gear is meshed with a central transmission external gear 32, the rotation external gear 33 drives the rotation shaft 31 and the composite grinding drum 4 to rotate, and the rotation direction and the revolution direction of the composite grinding drum 4 are opposite.

As shown in fig. 7, in a fourth transmission structure of the grinding machine, the gear ring reversely transmits the side view structure, the revolution system 2 comprises a revolution driving device 25, a main shaft and a revolution disc 23, the revolution driving device 25 drives the main shaft to rotate, and the revolution disc 23 is fixedly arranged on the main shaft.

The rotation system 3 comprises a rotation shaft 31 and a gear ring, the rotation shaft 31 penetrates through the revolution disc 23 to be in bearing connection with the revolution disc 23, the composite grinding cylinder 4 is connected to the rotation shaft 31 in a flange mode, the main shaft drives the rotation shaft 31 and the composite grinding cylinder 4 to revolve through the revolution disc 23, and the gear ring is fixedly connected with the fixing seat 1. One end of the rotation shaft 31 is provided with a rotation external gear 33, the rotation external gear 33 is meshed with the gear ring, so that the rotation external gear 33 drives the rotation shaft 31 and the composite grinding drum 4 to rotate, and the rotation direction and the revolution direction of the composite grinding drum 4 are opposite.

As shown in fig. 8, the composite grinding drum 4 includes a metal drum 41, a metal drum lining 42, a metal drum cover 43, a metal drum cover lining 44, screws 45 and bolts 46. The metal cylinder cover comprises one metal cylinder 41, two metal cylinder covers 43, one metal cylinder cover 43 at each end of the metal cylinder 41, one metal cylinder cover liner 44, two screws 45 and a plurality of bolts 46 in the metal cylinder cover 43. The metal cylinder 41 both ends pass through bolted connection metal cylinder cover, are equipped with the sealing washer between metal cylinder 41 and the metal cylinder cover 43, metal cylinder inside lining 42 is arranged in metal cylinder 41, metal cylinder 41 and metal cylinder inside lining 42 interference fit or bonding, metal cylinder cover 43 inboard is opened there is the groove, and metal cylinder cover inside lining 44 is arranged in the inslot, metal cylinder cover 43 inboard is opened the groove and is matched with metal cylinder cover inside lining 44 diameter size for interference fit or bonding, metal cylinder cover 43 groove bottom surface and metal cylinder inside lining 44 bottom surface in close contact, install screw 45 on the metal cylinder cover 43, screw 45 front end supports on metal cylinder cover inside lining 44. The replaceable metal cylinder liner 42 and the replaceable metal cylinder cover liner 44 are made of the same material or different materials. The screw 45 is used for ejecting and replacing the replaceable metal cylinder liner 44, and the replaceable metal cylinder liner 42 and the replaceable metal cylinder cover liner 44 can be replaced when different materials are ground, and also can be replaced after grinding and wearing. The corresponding positions of the metal cylinder cover 43 and the metal cylinder cover lining 44 are respectively provided with a cross through hole. And is provided with a locating pin 47.

The invention can eject the replaceable metal cylinder liner by the screw for replacement, the replaceable metal cylinder liner can be extruded, and the replaceable metal cylinder liner can be replaced when different materials are ground and also can be replaced after grinding and wearing. The inner lining of the metal cylinder and the inner lining of the metal cylinder cover are made of the same material or different materials of various materials such as stainless steel, alloy steel, bearing steel, tool steel, hard alloy, ceramic, agate, engineering plastic and the like, so that the purity of the materials can be ensured during the test, and the grinding cost can be saved in the production. The pore canal on the grinding cylinder cover is a cross-shaped slit, so that the grinding ball is prevented from blocking the pore canal to influence the grinding feeding.

As shown in fig. 2 and 3, the grinding balls are placed in the composite grinding cylinder 4, and during continuous grinding, the grinding balls can be graded, different ball fittings are configured in different grinding cylinders, and the grading grinding ball fitting principle is as follows: the diameter of the grinding balls in the composite grinding cylinder 4 (the composite grinding cylinder 4 arranged on the first rotating shaft 31) near the inlet side of the feeding device is larger than that of the grinding balls in the composite grinding cylinder 4 at the outlet side of the feeding device, and the number of the grinding balls in the composite grinding cylinder 4 near the inlet side of the feeding device is smaller than that of the grinding balls in the composite grinding cylinder 4 at the outlet side of the feeding device. The feeding structure is simplified in the serial feeding, the feeding consistency of each grinding cylinder is truly realized, meanwhile, different ball matching of each grinding cylinder is realized, the whole continuous grinding and grading grinding are realized, the grinding efficiency is greatly improved, and the energy consumption is reduced.

In order to simplify the vibration structure, the invention discloses a self-vibration grinding mode of the revolution system 2 and/or the rotation system 3, achieves the effects of large grinding force and vibration grinding, and improves the grinding efficiency and the fineness of grinding powder. The self-vibration device refers to the eccentric weight of the revolution system 2 and/or the eccentric weight of the rotating shaft 31 and the composite grinding cylinder 4. Eccentric weights are individual weight blocks or different weight bolts or different weight grinding balls or different weight grinding drums in different grinding drums used for connection. The vibration is generated by revolution and/or rotation movement. The vibration amplitude and frequency of the whole grinding system are adjusted through a vibration adjuster arranged at the bottom of the machine, so that the vibration amplitude and vibration frequency of the grinding balls are adjusted.

As shown in fig. 1 to 5, a self-excitation device is mounted on the revolution disc 23 of the revolution system 2, the self-excitation device is an individual weight block or a weighted bolt, and the weight block or the bolt is fixed on the revolution disc 23, so that the center of gravity of the revolution disc 23 is offset.

The self-excitation device 6 is arranged on the self-excitation system 3, the self-excitation device is an independent weight block and a bolt, and the weight block or the bolt is arranged on one or more self-rotation shafts 31 or the composite grinding drums 4 or the weights of grinding balls in different composite grinding drums 4 are different, so that the gravity center of the self-excitation system 3 is deviated.

The vibration regulator 7 is fixedly connected below the fixed seat 11, the vibration regulator is an elastic piece, and the vibration regulator is a metal spring or a rubber shear damper or a damping damper.

The revolution system 2 and the rotation system 3 are used for accelerating the revolution and rotation of the rotation shaft 31 and the composite grinding cylinder 4 to rotate in the same direction or in the opposite direction at a fixed or adjustable speed ratio, and a transmission mode of the revolution and rotation of the grinding cylinder in the same direction is preferably selected. The two ends of the composite grinding cylinder 4 with the replaceable lining are provided with the perforated rotating shafts 31, and the metal cylinder cover of the composite grinding cylinder 4 and the replaceable metal cylinder cover lining are provided with cross slit channels with the same opening positions and the same shapes and sizes, so that grinding balls are prevented from blocking the pore channels or entering the channels to influence grinding feeding, and positioning pins are also arranged to prevent the dislocation of the metal cylinder cover channels and the replaceable metal cylinder cover lining channels.

During continuous grinding, the grinding cylinder serial feeding mechanism 5 feeds materials from a feeding device into the main shaft channel 22 at one end of the main shaft through the feeding port of the main shaft rotary sealing joint 51, then the main shaft and the grinding cylinder connecting pipe 52 feed into the feeding port of the grinding cylinder rotary sealing joint 53, then one end enters the rotating shaft 31 and the composite grinding cylinder 4 (with cross holes), grinding balls with different ball matching are arranged in the grinding cylinder, and the ball matching principle is as follows: the closer to the composite grinding cylinder 4 on the material inlet side, the larger the ball diameter and the smaller the ball number are, the closer to the composite grinding cylinder 4 on the material outlet side, the smaller the ball diameter and the larger the ball number are, the material ground by the first-stage grinding cylinder enters the grinding cylinder rotary sealing joint 53 from the other end of the rotary sealing joint 53, then enters one end of the grinding cylinder serial pipe 54 from the discharge port of the rotary sealing joint 53, the other end of the grinding cylinder serial pipe 54 is connected with the next rotary shaft 31 and the feed port of the rotary sealing joint 53 of the grinding cylinder of the composite grinding cylinder 4 (with cross holes), the serial connection of the first grinding cylinder to the second grinding cylinder is completed, and the serial connection of all grinding cylinders is completed by analogy, the discharge port of the last grinding cylinder is connected with one end of the rotary sealing joint 53 of the other main shaft and the grinding cylinder, the other end of the rotary sealing joint 52 of the main shaft is connected with the channel of the other end of the main shaft, and then the material is sent to the material collecting device from the main shaft rotary sealing joint 51 at the other end of the main shaft. The two main shaft rotary sealing joints 51 are respectively arranged at two ends of the main shaft, the feed inlets of the two main shaft rotary sealing joints 51 are respectively connected with the feeding and receiving devices, and the main shaft channels 22 are not communicated at the middle parts of the two ends of the main shaft; two main shaft and grinding cylinder connecting pipes 52 are respectively arranged at the inlet and outlet of the main shaft, one end of each main shaft is fixedly connected with a radial hole of the main shaft, two grinding cylinder rotary sealing joints 53 are arranged on each rotary shaft 31 and the composite grinding cylinder 4, one rotary shaft 31 at each two ends is respectively arranged, and the total number of the rotary sealing joints is equal to twice the number of the composite grinding cylinders 4 for rotary feeding of the grinding cylinders; the grinding cylinder serial pipes 54 connect the composite grinding cylinders 4 in series, the total number is the number of the composite grinding cylinders 4 minus 1, the serial connection method can be the serial connection of the rotating shafts 31 at the same side of the two composite grinding cylinders 4 or the serial connection of the rotating shafts 31 at different sides of the two composite grinding cylinders 4, and the serial connection of the rotating shafts 31 at the same side is preferably selected, so that the grinding cylinder serial pipes 54 are shorter, the flow resistance is smaller, the grinding cylinder serial pipes 54 are fixed with the revolution system 2, and the revolution system 2 is together with the revolution system 54.

The grinding cylinder is preferably used for grinding in the same direction by revolution and rotation, so that revolution centrifugal force, rotation centrifugal force and Golgi force are in the same direction at the farthest point of the grinding cylinder from the main shaft center, the maximum value of three forces is reached, the gravity of the grinding ball can be 60-300 times, the pressure of the grinding ball on powder is greatly increased, the grinding ball is always positioned at the outermost side of the grinding cylinder and is tightly attached to the wall of the grinding cylinder, and the grinding ball is driven to rotate by the high-speed rotation of the grinding cylinder to grind grinding materials. Of course, the invention can also be used for planetary ball mills with grinding drums rotating in opposite directions, but the grinding efficiency is low.

The dynamics and kinematics of the planetary ball mill are shown in the following figures.

The dynamics and kinematics of the planetary ball mill are shown in fig. 10.

The planetary grinding ball m is stressed by F:

F＝mω _R ² L+mω _r ² r+2mω _R ω _r r

wherein m is the mass of the grinding ball; omega _R Is revolution speed; l is the distance from the revolution circle center O to the grinding ball m; omega _r Is the rotation speed; r is the radius of the mill barrel. In the figure, R is the revolution radius.

mω _R ² L is a centrifugal force caused by revolution;

mω _r ² r is centrifugal force caused by rotation of the grinding cylinder;

2mω _R ω _r r is a coriolis force caused by revolution and rotation.

For the planetary ball mill with the same rotation direction, the directions of the three directions are the same (the directions of the Golgi force are the same when the rotation direction is the revolution direction and the rotation direction is the rotation direction, and the materials are the rotation direction when the rotation direction is the rotation direction), the grinding balls and the materials are accumulated towards the farthest point all the time under the action of the three forces, and the grinding balls are driven to rotate along with the grinding cylinder under the action of the friction force of the grinding cylinder and the grinding balls, so that the rolling grinding of the materials by the grinding balls at the fixed position of the grinding cylinder is realized by the rotation of the grinding balls and the grinding cylinder.

Figures 11 and 12 are force bearing patterns of the grinding ball at the near and far points during revolution, autorotation, and reversal.

1. Direction of the coriolis force: the rotary shaft is directed out of the grinding cylinder when rotating in the same direction; and the rotation is directed into the grinding cylinder when the rotation is reversed.

The direction of the coriolis force is dependent upon whether the revolution and revolution directions are in the same direction or in opposite directions, regardless of whether the motor is rotating clockwise or counterclockwise. (it is understood that the rotation is counterclockwise when viewed from one side and clockwise when viewed from the opposite side, the forces in the system are unchanged, so that the direction of the coriolis force can be influenced only by the direction of revolution and rotation, and the direction of the coriolis force can be determined not by the direction of rotation).

2. The absolute rotation centrifugal force is the absolute rotation angular velocity W _T ＝W _R +W _r And (5) performing calculation.

3. When the revolution and the autorotation rotate in the same direction, the direction of the Golgi force points to the outside of the grinding cylinder: the ball is pressed to the cylinder wall at the maximum force at the telecentric point, and the combined force G of the three forces _r +G _R +G _k The method comprises the steps of carrying out a first treatment on the surface of the The ball receives minimal adherence force at the near-center point, and the ball must be separated: g _R ≥G _r +G _k The force is obtained by the relation:

m(R－r)W _R ² ≥rm(W _R －W _T ) ² +2rmW _R (W _R －W _T )

the simplification is as follows: w (W) _R /W _T ≥{－4r±[16r ² －4r(R－4r)] ^1/2 }/[2(R－4r)]

Calculating the existing planetary ball mill: if the revolution and the autorotation are in the same direction, the following negative number is not practical, so the ball is not separated from the grinding cylinder, and the ball cannot be thrown off.

4. When revolution and autorotation are reversed, the condition that the grinding ball is separated must be satisfied:

G _R +G _k ≥G _r substituting the force of closureThe system is as follows: rm (W) _R －W _T ) ² ≤m(R－r)W _R ² +2rmW _R (W _R －W _T )

The simplification is as follows: w (W) _R /W _T ≥(r/R) ^1/2 That is W _T /W _R ≤(R/r) ^1/2 Can be separated only when it is at this time W _T ＝W _R －W _r

The existing planetary ball mill is used for realizing throwing and crushing based on the above formula. Example when r=164, r=37, i=1: at 3, W _T /W _R ＝2≤(R/r) ^1/2 =2.1, the inequality holds so the ball can be disengaged, i=1: and 3, calculating that the rotation centrifugal force is equal to the Golgi force, and canceling out each other, wherein the throwing force is equal to the revolution centrifugal force.

The first embodiment is as follows:

the serial feeding planetary grinder is composed of a revolution system, a rotation system, a composite grinding cylinder, a serial feeding mechanism, a grading grinding ball, a self-vibration device and a vibration regulator as shown in figure 1.

As shown in fig. 2, when the revolution system drives the perforated rotating shaft and the composite grinding cylinder to revolve, the perforated rotating shaft and the composite grinding cylinder are connected with the self-rotating external gear through keys, and the self-rotating external gear is meshed with the central fixed external gear to drive the perforated rotating shaft and the composite grinding cylinder to accelerate and rotate in the same direction with the revolution system at a fixed speed ratio.

The continuously ground composite grinding cylinder, as shown in fig. 8, consists of a 304 stainless steel outer cylinder, a zirconia replaceable cylinder grinding lining, a 304 stainless steel cylinder cover, a zirconia replaceable cover grinding lining, screws, positioning pins and fastening bolts.

When continuously grinding, as shown in fig. 1-5, the grinding cylinder serial feeding mechanism is characterized in that materials from a feeding device are fed into a main shaft channel at one end of a main shaft through a feeding hole of a main shaft rotary sealing joint, then are fed into the feeding hole of the grinding cylinder rotary sealing joint through a main shaft and a grinding cylinder connecting pipe, then enter a perforated rotating shaft and a composite grinding cylinder from one end, grinding balls with different ball matching are arranged in the grinding cylinder, and the ball matching principle is as follows: the more the composite grinding cylinder close to the material inlet is, the more the ball diameter is larger, the less the ball number is, the more the ball diameter is smaller, the more the ball number is, the material ground by the first-stage grinding cylinder enters the grinding cylinder rotary sealing joint from the other end with a hole, then enters one end of the grinding cylinder serial pipe from the discharge hole of the grinding cylinder rotary sealing joint, the other end of the grinding cylinder serial pipe is connected with the next hole rotary shaft and the grinding cylinder rotary sealing joint feed hole of the composite grinding cylinder, the serial connection from the first grinding cylinder to the second grinding cylinder is completed, and the serial connection of all grinding cylinders is completed by analogy. The two main shaft rotary sealing joints are respectively arranged at two ends of the main shaft, the feed inlets of the two main shaft rotary sealing joints are respectively connected with the feeding and receiving devices, and the main shaft channels are not communicated at the middle parts of the two ends of the main shaft; the main shaft and the grinding cylinder are connected with two connecting pipes, one end of each of the main shaft inlet and outlet is fixedly connected with a radial hole of the main shaft, and the other end of each of the main shaft inlet and outlet is connected with a rotary sealing joint of the grinding cylinder; the grinding cylinder rotary sealing joints are arranged on each perforated rotating shaft and the composite grinding cylinder, one of the perforated rotating shafts at the two ends is respectively arranged, and the total number of the rotary sealing joints is equal to twice the number of the composite grinding cylinders and is used for rotary feeding of the grinding cylinders; the grinding cylinder serial pipes are used for connecting the composite grinding cylinders in series, the total number of the grinding cylinders is 1, and the serial connection method can be that the two composite grinding cylinders are connected in series with the rotating shafts with holes on the same side, so that the grinding cylinder serial pipes are short, the flowing resistance is small, the grinding cylinder serial pipes are fixed with a revolution system, and the grinding cylinder serial pipes and the revolution system perform revolution motion together.

The self-vibration device is characterized in that an eccentric bolt is arranged on a revolution system and an eccentric bolt is arranged on a rotation system.

The vibration regulator is a rubber shear damper mounted at the bottom of the machine.

The revolution system, the perforated rotating shaft and the composite grinding cylinder are horizontally arranged on the fixed seat.

The machine is universal in dry grinding and wet grinding.

The second embodiment is as follows:

the serial feed planetary grinder is shown in fig. 3, the rotation transmission driving device drives the central transmission external gear to rotate, the rotation direction of the central transmission external gear is opposite to that of the revolution system, the rotation external gear on the rotation shaft and the compound grinding cylinder is directly meshed with the central transmission external gear, the rotation direction is changed into the same-direction rotation of the rotation shaft and the compound grinding cylinder as well as the revolution system, and the revolution system and the rotation transmission system are driven by the variable-frequency speed regulating motor and the variable-frequency electric control device, so that the revolution system, the rotation shaft and the compound grinding cylinder are accelerated to rotate in the same direction at a continuously adjustable speed ratio.

The continuously ground composite grinding cylinder, as shown in fig. 8, consists of a 304 stainless steel outer cylinder and a YG6 hard alloy replaceable cylinder grinding lining, a 304 stainless steel cylinder cover and a YG6 hard alloy replaceable cover grinding lining, screws, positioning pins and fastening bolts.

When continuously grinding, as shown in fig. 1-7, the grinding cylinder serial feeding mechanism feeds materials from the feeding device into a main shaft channel at one end of a main shaft through a feeding port of a main shaft rotary sealing joint, then the main shaft and a grinding cylinder are connected to feed the material port of the grinding cylinder rotary sealing joint, then one end of the main shaft enters a perforated rotating shaft and a composite grinding cylinder, grinding balls with different ball matching are arranged in the grinding cylinder, and the ball matching principle is as follows: the more the composite grinding cylinder close to the material inlet is, the more the ball diameter is larger, the less the ball number is, the more the ball diameter is smaller, the more the ball number is, the material ground by the first-stage grinding cylinder enters the grinding cylinder rotary sealing joint from the other end with a hole, then enters one end of the grinding cylinder serial pipe from the discharge hole of the grinding cylinder rotary sealing joint, the other end of the grinding cylinder serial pipe is connected with the next hole rotary shaft and the grinding cylinder rotary sealing joint feed hole of the composite grinding cylinder, the serial connection from the first grinding cylinder to the second grinding cylinder is completed, and the serial connection of all grinding cylinders is completed by analogy. The two main shaft rotary sealing joints are respectively arranged at two ends of the main shaft, the feed inlets of the two main shaft rotary sealing joints are respectively connected with the feeding and receiving devices, and the main shaft channels are not communicated at the middle parts of the two ends of the main shaft; the grinding cylinder rotary sealing joint is provided with two parts on each perforated rotating shaft and the composite grinding cylinder, and the total number of the perforated rotating shafts at the two ends is equal to twice the number of the composite grinding cylinders for rotary feeding of the grinding cylinders; the grinding cylinder serial pipes are used for connecting the composite grinding cylinders in series, the total number is the number of the composite grinding cylinders minus 1, in this example, the two composite grinding cylinders are connected in series with the rotating shafts with holes on different sides, and the grinding cylinder serial pipes are fixed with the revolution system and perform revolution motion together with the revolution system.

The self-vibration device is characterized in that an eccentric bolt is arranged in a revolution system, and ball fittings with different weights are arranged in each composite grinding cylinder of a rotation system.

The vibration regulator is a rubber spring installed at the bottom of the machine.

The machine is universal in dry grinding and wet grinding.

Description of working process:

1. grinding: a metal cylinder cover of the composite grinding cylinder is arranged on one side of each composite grinding cylinder, then grading balls designed by each composite grinding cylinder are respectively arranged in the corresponding grading composite grinding cylinders, a metal cylinder cover on the other side is arranged, and then the metal cylinder covers are fixed on the rotating shaft flange by bolts; a self-excitation vibration weight and a vibration regulator are arranged; all rotary sealing joints, main shaft connecting pipelines and serial pipelines are installed, feeding is started, when the discharge flow of materials is the same as the feeding flow, the materials of each tank are full, at the moment, a revolution driving device (and a rotation driving device) is started, and grinding parameters are adjusted to start grinding.

2. Self-excitation and vibration adjustment process: the weight block (a big bolt is arranged or a weight block is fixed by the bolt) is arranged on the revolution disc, and revolution vibration is generated during revolution; a connecting bolt of the rotating shaft and the composite grinding cylinder is provided with a weight block or a bolt with different weights, and the rotating shaft and the composite grinding cylinder can generate rotating vibration during rotation. Each machine is tuned to the appropriate amplitude and frequency by changing a different model of vibration tuning machine.

3. Lining replacement process: when the lining is needed to be replaced, the metal cylinder and the metal cylinder cover of the composite grinding cylinder are all disassembled, the lining of the metal cylinder is ejected by a jack, and then a new lining is pressed in. The screw on the metal cylinder cover is screwed to one side of the lining of the metal cylinder cover, so that the replaceable lining of the metal cylinder cover can be ejected out, and then a new lining is installed (generally in interference fit).

It should be noted that the present invention should not be construed as being limited to the embodiments set forth herein. As will be readily appreciated by those skilled in the art to which this application pertains, the disclosed features of the embodiments may be combined. Well-known functions or constructions may not be described in detail in this application for brevity and/or clarity. Any modification, equivalent variation and variation of the above implementation examples according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention without departing from the technical solution of the present invention.

Claims

1. A tandem feed type planetary grinder, which is characterized in that: the automatic grinding machine comprises a fixed seat, a revolution system, a rotation system, a composite grinding cylinder, a feeding mechanism, a self-vibration device and a vibration regulator, wherein the revolution system and the rotation system are arranged on the fixed seat, the revolution system drives the composite grinding cylinder to revolve, the rotation system drives the composite grinding cylinder to rotate, the revolution system comprises a main shaft, two ends of the main shaft are provided with main shaft channels, the main shaft channels are not communicated with each other in the middle of two ends of the main shaft, the rotation system comprises a rotation shaft, the rotation shaft is provided with an axial through hole, and the composite grinding cylinders with cross through holes at the two ends of the grinding cylinder cover are arranged on the rotation shafts at the two ends;

The feeding mechanism comprises a main shaft rotary sealing joint, a main shaft channel, a main shaft and grinding cylinder connecting pipe, a grinding cylinder rotary sealing joint, a grinding cylinder serial pipe and a rotation shaft through hole, wherein the main shaft rotary sealing joints are arranged at two ends of the main shaft, the feeding ports of the two main shaft rotary sealing joints are respectively connected with the feeding device and the receiving device, the grinding cylinder rotary sealing joints are arranged on the rotation shafts with through holes at two ends of a compound grinding cylinder with a cross through hole in a grinding cylinder cover, one end of the main shaft and one end of the grinding cylinder connecting pipe are fixedly connected with one main shaft channel, the other end of the main shaft and one end of the grinding cylinder connecting pipe are connected with the grinding cylinder rotary sealing joint with the rotation shaft with the through hole at one side of the compound grinding cylinder with the cross through hole in the first grinding cylinder cover, the grinding cylinder rotary sealing joint with the rotation shaft with the cross through hole at the other side of the compound grinding cylinder cover is sequentially connected to the grinding cylinder rotary sealing joint with the last grinding cylinder with the cross through the grinding cylinder serial pipe, and the grinding cylinder rotary sealing joint with the rotation shaft at the other side of the compound grinding cylinder with the cross through shaft at the last grinding cylinder cover is fixedly connected with the main shaft and the main shaft channel at the other end of the main shaft;

The self-vibration device is arranged on the revolution system and/or the rotation system, and the vibration regulator is arranged under the fixed seat.

2. A tandem feed planetary mill according to claim 1, wherein:

3. A tandem feed planetary mill according to claim 1, wherein:

the revolution system comprises a revolution driving device, a main shaft and a revolution disc, wherein the revolution driving device drives the main shaft to do rotary motion, and the revolution disc is fixedly arranged on the main shaft;

the rotation system comprises a rotation shaft and a central transmission external gear, the rotation shaft penetrates through the revolution disc to be connected with the revolution disc through a bearing, the composite grinding cylinder is connected to the rotation shaft in a flange mode, the main shaft drives the rotation shaft and the composite grinding cylinder to revolve through the revolution disc, one end of the rotation shaft is provided with the rotation external gear, the rotation external gear is meshed with the central transmission external gear, the rotation external gear drives the rotation shaft and the composite grinding cylinder to rotate, and the rotation direction and the revolution direction of the composite grinding cylinder are the same.

4. A tandem feed planetary mill according to claim 1, wherein:

the rotation system comprises a rotation shaft, an intermediate gear and a central transmission external gear, wherein the rotation shaft penetrates through a revolution disc to be connected with the revolution disc through a bearing, a composite grinding cylinder is connected to the rotation shaft in a flange mode, the main shaft drives the rotation shaft and the composite grinding cylinder to revolve through the revolution disc, the intermediate gear is arranged on the revolution disc, the rotation external gear is arranged at one end of the rotation shaft and meshed with the intermediate gear, the intermediate meshing wheel is meshed with the central transmission external gear, the rotation external gear drives the rotation shaft and the composite grinding cylinder to rotate, and the rotation direction and the revolution direction of the composite grinding cylinder are opposite.

5. The tandem feed planetary mill according to claim 2, wherein: the composite grinding cylinder comprises a metal cylinder, a metal cylinder liner, a metal cylinder cover liner, screws and bolts, wherein the metal cylinder cover is connected to two ends of the metal cylinder through the bolts, a sealing ring is arranged between the metal cylinder and the metal cylinder cover, the metal cylinder liner is arranged in the metal cylinder, the metal cylinder is in interference fit with the metal cylinder liner, a groove is formed in the inner side of the metal cylinder cover, the metal cylinder cover liner is arranged in the groove, the metal cylinder cover liner is in close contact with the metal cylinder liner, the screws are connected to the metal cylinder cover liner, and the front ends of the screws are propped against the metal cylinder cover liner, and cross through holes are formed in the corresponding positions of the metal cylinder cover and the metal cylinder cover liner.

6. The tandem feed planetary mill according to claim 2, wherein:

the grinding balls are placed in the composite grinding cylinder, the diameter of the grinding balls in the composite grinding cylinder close to the feeding hole of the feeding device is larger than that of the grinding balls in the composite grinding cylinder close to the discharging hole of the feeding device, and the number of the grinding balls in the composite grinding cylinder close to the feeding hole of the feeding device is smaller than that of the grinding balls in the composite grinding cylinder close to the discharging hole of the feeding device.

7. The tandem feed planetary mill of any one of claim 1, wherein:

the self-excitation device is arranged on a revolution disc of the revolution system, is an independent weight block or a weighting bolt, and is fixed on the revolution disc to enable the center of gravity of the revolution disc to deviate;

the vibration regulator is an elastic piece, and the vibration regulator is a metal spring or a rubber shear damper or a damping damper.

8. The tandem feed planetary mill of any one of claim 1, wherein: the self-vibration device is an independent weight block and a bolt, and the weight block or the bolt is arranged on one or more rotating shafts or the composite grinding drums or the weights of grinding balls in different composite grinding drums are different, so that the gravity center of the self-vibration system is deviated;

9. The tandem feed planetary mill of any one of claim 1, wherein: the grinding cylinder serial pipes are used for communicating the grinding cylinder rotary sealing joints at the same side of the rotating shaft, or the grinding cylinder serial pipes are used for communicating the grinding cylinder rotary sealing joints at different sides of the rotating shaft.

10. The tandem feed planetary mill according to any one of claims 1-2, wherein: the grinding machine is a dry grinding machine or a wet grinding machine.