CN108855426B - Planetary ball mill with adjustable rotation speed - Google Patents
Planetary ball mill with adjustable rotation speed Download PDFInfo
- Publication number
- CN108855426B CN108855426B CN201710329390.0A CN201710329390A CN108855426B CN 108855426 B CN108855426 B CN 108855426B CN 201710329390 A CN201710329390 A CN 201710329390A CN 108855426 B CN108855426 B CN 108855426B
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- CN
- China
- Prior art keywords
- compressed air
- ball milling
- revolution shaft
- milling tank
- blade
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
- B02C17/08—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container with containers performing a planetary movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/1815—Cooling or heating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/24—Driving mechanisms
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Crushing And Grinding (AREA)
Abstract
A planetary ball mill with adjustable autorotation speed consists of an air compressor, a compressed air conduit, a ball milling tank, an injection pipe, blades, a motor, a planetary transmission mechanism, a revolution shaft, a revolution cylinder and a ball milling tank autorotation speedometer; the air compressor is fixed on the male rotating cylinder in a mechanical mode, the compressed air guide pipe is connected with the rotating shaft in a static state, and a lead-acid or lithium rechargeable battery and the like are adopted as a power supply; the revolution shaft is a blind pipe with one closed end, the compressed air outlet is communicated with the blind end of the revolution shaft hole, the blind end of the revolution shaft is provided with a circumferential small hole at the bottom of the blind hole, and the injection pipe hole is communicated with the circumferential small hole of the blind hole of the revolution shaft, so that the air compressor → the revolution shaft → the injection pipe forms a compressed air channel; the shape of the blade adopts an arc shape, a spinning wheel shape or an involute shape and the like, the blade is fixed on the outer wall of the ball milling tank, and the extension line of the jet pipe penetrates through a cylindrical surface formed by the rotation of the blade, so that compressed air is jetted on the blade to push the rotation of the ball milling tank.
Description
Technical Field
The invention belongs to the field of powder production equipment, and particularly relates to a planetary ball mill with adjustable rotation speed. Background
The planetary ball mill is designed for crushing, grinding and dispersing metal, nonmetal, organic, Chinese herbal medicine and other powder, is especially suitable for laboratory research and use, and has the working principle that the grinding material and a test material are rolled in a grinding tank at a high speed to generate strong shearing, impact and rolling on the material so as to achieve the purposes of crushing, grinding, dispersing and emulsifying the material. Planetary ball mills generally have four ball milling pots mounted on the same turntable, and when the turntable rotates, the ball milling pots revolve around the turntable axis and rotate around their axes, and the balls in the pots collide with each other in high-speed motion to grind and mix the sample. The planetary ball mill can grind and mix powder with different particle sizes and different materials by adopting a dry method and a wet method, the minimum particle size of the ground powder can reach 0.1 micron, various process parameter requirements can be well realized, and due to the advantages of small batch, low power consumption and low price, the planetary ball mill is the preferred equipment for carrying out research on crushing processes, new materials and coatings in schools, research units and companies.
Ball milling is a main method for realizing a mechanical alloying process, temperature is an important influence factor in the ball milling process, and the impact kinetic energy of the milling balls and the reaction heat of materials cause the temperature to rise. The lower temperature is more beneficial to the refinement of materials and microstructures and the stability of the metastable state structure of the ball-milling material.
Disclosure of Invention
Aiming at the problems, the invention provides the planetary ball mill with the adjustable rotation speed, which has the advantages of simple equipment and reliable connection, and can realize the control of the ball milling process by adjusting the rotation speed of the ball milling tank.
The equipment of the invention consists of an air compressor (attached with a rechargeable power supply), a compressed air conduit, a ball milling tank, an injection pipe, blades, a motor, a planetary transmission mechanism, a revolution shaft, a revolution cylinder and a ball milling tank autorotation tachometer. The method is characterized in that: the ball milling tank rotation speed meter and the revolution cylinder are fixed in the revolution cylinder in a mechanical mode by adopting a damping mode such as rubber pads and the like, a compressed air conduit is connected with the revolution shaft and then converted into static connection, and a power supply of the air compressor adopts rechargeable lead acid or lithium batteries and the like; the revolution shaft is a blind pipe with one closed end, the compressed air outlet is communicated with the blind end of the revolution shaft hole, the blind end of the revolution shaft is provided with a circumferential hole at the bottom of the blind hole, and the injection pipe hole is communicated with the circumferential hole of the blind hole of the revolution shaft, so that the air compressor → the revolution shaft → the injection pipe forms a channel of compressed air; the shape of the blade adopts an arc shape, a spinning wheel shape or an involute shape and the like, the blade is fixed on the outer wall of the ball milling tank, and the extension line of the jet pipe penetrates through a cylindrical surface formed by the rotation of the blade, so that compressed air is jetted to the blade to push the rotation of the ball milling tank; the planetary transmission mechanism is composed of a speed reduction and transmission mechanism and can adopt the forms of gears or belt pulleys and the like.
The process principle of the invention is as follows: the motor drives the revolution shaft to rotate through the planetary transmission mechanism, the revolution shaft is rigidly connected with the revolution cylinder, so that the revolution of the revolution cylinder is driven, and the grinding balls roll at high speed in the grinding tank to push the ball milling tank to rotate. The air compressor generates high-pressure gas which acts on the blades fixed on the ball milling tank through the compressed air conduit → the revolution shaft → the injection pipe, so that the autorotation speed of the ball milling tank is increased. The control of the autorotation speed of the ball milling tank is realized by adjusting the flow and the pressure of the compressed air.
The invention has the following advantages:
1. because the blades are arranged on the outer wall of the ball milling tank and pushed by compressed air, the autorotation speed of the ball milling tank can be increased, and the ball milling efficiency is improved;
2. by adjusting the installation position and the angle of the injection pipe, the compressed air can act on the outer wall of the ball milling tank while pushing the blades, so that the heat dissipation of the outer wall of the ball milling tank is enhanced, and the temperature of materials in the ball milling tank is reduced;
3. the design of the jet pipe can be changed, and the jet compressed air can be replaced by water mist or other gases, so that the cooling effect of the ball milling tank can be enhanced;
4. the ball milling tank rotation speed meter is matched with the compressed air flow and the pressure, so that the adjustment of the ball milling tank rotation speed in a large range can be realized.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention. Wherein, 1, air compressor, 2, compressed air pipe, 3, ball-milling jar, 5, injection pipe, 6, blade, 7, motor, 8, planetary drive mechanism, 9, revolution axis, 10, revolving drum, 11 ball-milling jar rotation speedometer.
The specific implementation mode is as follows:
the technical solution of the present invention is further explained with reference to the drawings and the embodiments.
The structure of the invention is schematically shown in figure 1. The device comprises an air compressor, a rechargeable power supply 1, a compressed air conduit 2, a ball milling tank 3, an injection pipe 5, blades 6, a motor 7, a planetary transmission mechanism 8, a revolution shaft 9, a revolution cylinder 10 and a ball milling tank autorotation speedometer 11. The air compressor 1 adopts a direct-current piston type air compressor DC12v, a lead-acid power supply is adopted as the power supply, a rubber pad damping mode is adopted between the ball milling tank rotation speedometer 11 and the revolution cylinder 10, the air compressor 1 and the ball milling tank rotation speedometer (adopting a non-contact sensor) 11 are fixed on the revolution cylinder in a mechanical mode, and the compressed air conduit is connected with the revolution shaft in a static mode; the compressed air conduit is made of a rubber hose, the injection pipe is made of copper alloy, the revolution shaft is a blind pipe with one closed end and made of steel, 4 circumferential holes are formed in the bottom pipe wall of the blind pipe end, and the circumferential holes 4 are communicated with the injection pipe holes; the blade is formed by stamping a steel plate, is in an involute shape and is fixed on the outer wall of the ball milling tank in a welding manner; the extension line of the jet pipe penetrates through the cylindrical surface formed by the autorotation of the blade, so that compressed air is jetted to the blade to push the autorotation of the ball milling tank; the planetary transmission machine adopts a belt pulley type mechanism to reduce speed and transmit.
Claims (1)
1. A planetary ball mill with adjustable autorotation speed consists of an air compressor, a compressed air conduit, a ball milling tank, an injection pipe, blades, a motor, a planetary transmission mechanism, a revolution shaft, a revolution cylinder and a ball milling tank autorotation speedometer, wherein the air compressor is provided with a rechargeable power supply; the method is characterized in that: the air compressor is fixed on the male rotating cylinder in a mechanical mode, the compressed air conduit is connected with the rotating shaft in a static state, and a lead-acid or lithium rechargeable battery is adopted as a power supply; the revolution shaft is a blind pipe with one closed end, the compressed air outlet is communicated with the blind end of the revolution shaft hole, the blind end of the revolution shaft is provided with a circumferential small hole at the bottom of the blind hole, and the injection pipe hole is communicated with the circumferential small hole of the blind hole of the revolution shaft, so that the air compressor → the revolution shaft → the injection pipe forms a compressed air channel; the shape of the blade adopts an arc shape, a spinning wheel shape or an involute shape, the blade is fixed on the outer wall of the ball milling tank, and the extension line of the jet pipe penetrates through a cylindrical surface formed by the rotation of the blade, so that compressed air is jetted on the blade to push the rotation of the ball milling tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329390.0A CN108855426B (en) | 2017-05-11 | 2017-05-11 | Planetary ball mill with adjustable rotation speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329390.0A CN108855426B (en) | 2017-05-11 | 2017-05-11 | Planetary ball mill with adjustable rotation speed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108855426A CN108855426A (en) | 2018-11-23 |
| CN108855426B true CN108855426B (en) | 2020-03-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710329390.0A Active CN108855426B (en) | 2017-05-11 | 2017-05-11 | Planetary ball mill with adjustable rotation speed |
Country Status (1)
| Country | Link |
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| CN (1) | CN108855426B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708450B (en) * | 2018-12-28 | 2024-01-30 | 武汉中精金属制品有限公司 | Involute guiding and positioning mechanism |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2070986A (en) * | 1980-02-26 | 1981-09-16 | Standard Telephones Cables Ltd | Apparatus for the shear-force processing of material placed in rotatable barrels |
| JPH06104206B2 (en) * | 1990-11-27 | 1994-12-21 | 株式会社栗本鐵工所 | Continuous air swept planetary ball mill |
| CN1660501A (en) * | 2004-02-24 | 2005-08-31 | 夏纪勇 | Water-cooled epicyclic ball mill with dual transmission |
| CN102172548A (en) * | 2011-02-25 | 2011-09-07 | 南京工业大学 | Continuous horizontal type planet ball grinder |
| CN102151595B (en) * | 2011-05-18 | 2012-05-30 | 南京工业大学 | Continuous production horizontal planetary ball mill separately driven to revolute and rotate |
| CN103386347A (en) * | 2013-07-31 | 2013-11-13 | 西安交通大学 | Low-temperature ball-milling experimental apparatus |
| CN203764339U (en) * | 2014-01-20 | 2014-08-13 | 山东科技大学 | Self-turbulent flow cooling planet-type ball grinder |
| CN104492552B (en) * | 2014-11-25 | 2017-06-16 | 广西大学 | Low temperature planetary high-energy ball mill |
| CN105413813A (en) * | 2015-12-16 | 2016-03-23 | 嵊州市西格玛科技有限公司 | Ball mill used for producing graphite powder |
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2017
- 2017-05-11 CN CN201710329390.0A patent/CN108855426B/en active Active
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| CN108855426A (en) | 2018-11-23 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200114 Address after: 410000 No.401, floor 4, building D2, Jinrong Wangcheng science and Technology Industrial Park, no.858, Purui West Road, Wangcheng economic and Technological Development Zone, Changsha City, Hunan Province Applicant after: CHANGSHA MITR INSTRUMENT EQUIPMENT CO., LTD. Address before: 410076 general times 1-1006 of Chek Ling Road, Tianxin District, Changsha, Hunan Province, 1-1006 Applicant before: Liu Zhihong |
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