CN220294836U - Ball mill cylinder fixed structure of planetary ball mill - Google Patents

Abstract

The utility model discloses a ball milling barrel fixing structure of a planetary ball milling instrument, which comprises an outer barrel, a bottom plate and a pressing mechanism, wherein the bottom plate is detachably connected to the lower end of the outer barrel, a rotating shaft is detachably connected to the middle part of the lower surface of the bottom plate, a plurality of baffle rings are fixed on a rotating disc, a plurality of annular grooves are formed in the lower surface of the bottom plate, the upper ends of the baffle rings movably extend into the corresponding annular grooves, the pressing mechanism comprises a movable rod, rotating screw rods and a pressing plate, side lugs are fixedly connected to the two sides of the upper end of the outer barrel, movable holes are formed in the side lugs, two ends of the movable rod are respectively inserted into the movable holes, a screw hole is formed in the middle part of the movable rod, the lower end of the rotating screw rod is screwed into the screw hole and then connected with the pressing plate, and the upper end of the rotating screw rod is connected with a handle. The ball mill barrel fixing structure of the planetary ball mill can be used for conveniently disassembling and cleaning, effectively preventing grinding materials and the like from entering the transmission structure of the planetary ball mill such as gears and the like, and improving the running stability of the planetary ball mill.

Description

Ball mill cylinder fixed structure of planetary ball mill

Technical field

The utility model belongs to the technical field of planetary ball mills, and specifically relates to the fixing structure of the ball mill barrel of the planetary ball mill.

Background technique

Ball mill is a commonly used production equipment and experimental instrument. It uses abrasives and samples to tumble at high speed in a grinding tank to produce strong shearing, impact, and rolling of materials to achieve the purpose of crushing, grinding, dispersing, and emulsifying materials. There are various types of ball mills, including horizontal ball mills, vertical ball mills, planetary ball mills, etc. Among them, the planetary ball mill can use multiple grinding cylinders for ball milling at the same time, and is widely used in scientific experiments. However, existing planetary ball mills often make operational errors during use, and the grinding jar is not tightly sealed, resulting in the abrasive overflowing from the jar. It is very troublesome to clean up the spilled abrasive. The small internal space of the ball mill makes cleaning more difficult. Failure to clean it thoroughly will affect the fixation effect of the grinding jar, and abnormal noise will easily occur during operation. At the same time, abrasives can easily enter the transmission gear, causing problems with the transmission structure inside the ball mill.

Utility model content

In order to solve the above technical problems, the technical solution adopted by this utility model is: the fixed structure of the ball mill barrel of the planetary ball mill. The planetary ball mill includes a turntable, a fixed gear and several ball mill barrels. The turntable is driven to rotate by a driving mechanism, and the turntable is equipped with Several ball mill cylinder fixing structures are arranged in an array around the middle circumference of the turntable. The ball mill cylinder fixing structure includes an outer cylinder, a bottom plate and a pressing mechanism. The bottom plate is detachably connected to the lower end of the outer cylinder. A rotating shaft is detachably connected to the middle part of the lower surface of the bottom plate. The rotating disk is provided with a through hole for the rotating shaft to pass through. A bearing is provided in the through hole. After the rotating shaft passes through the through hole, a planetary gear is fixedly connected to the planetary gear and the fixed gear. Connected by a number of connecting gears, a number of baffle rings are fixed on the turntable. The baffle rings correspond to the through holes one by one. The baffle rings are coaxially arranged with the corresponding through holes. The lower surface of the base plate is provided with a number of annular grooves. The grooves correspond to the baffle rings one by one, and the upper end of the baffle ring can move into the corresponding annular groove. The pressing mechanism includes a movable rod, a rotating screw and a pressure plate. Both sides of the upper end of the outer cylinder are fixedly connected. There are side ears, and there are movable holes on the side ears. The movable rod is set horizontally. Both ends of the movable rod can be inserted into the movable holes respectively. There is a screw hole in the middle of the movable rod. The lower end of the rotating screw is screwed into the screw hole and then connected to the pressure plate. , the upper end of the rotating screw is connected with a handle.

As a preferred embodiment of the above technical solution, the base plate is provided with several threaded holes all around, the lower end of the outer cylinder is provided with a limiting platform, the upper end of the base plate is closely attached to the limiting platform, and the lower end of the outer cylinder is provided with a number of screws. The screw holes correspond to the threaded holes one by one, and the bottom plate and the outer cylinder are fixedly connected by a number of screws.

As a preferred embodiment of the above technical solution, a connecting hole is provided in the middle of the bottom plate, and the connecting hole is provided with an expanding section and a constricting section from top to bottom, and the upper end of the rotating shaft is provided with a threaded section and a clamping plate from top to bottom. The section passes through the shrinking section from bottom to top and then extends into the expanding section, and the threaded section is threadedly connected with a clamping nut.

As a preferred embodiment of the above technical solution, a sealing plug is plugged into the expanded section.

As a preferred embodiment of the above technical solution, the two sides of the movable rod are respectively provided with clamping grooves, the middle part of the lower surface of the pressure plate is provided with a sinking groove, the middle part of the sinking groove is provided with a mounting hole, and the lower end of the rotating screw passes through the mounting hole. Finally, the limit plate is detachably connected, and the limit plate is located in the sink groove.

As a preferred embodiment of the above technical solution, the limiting plate and the lower end of the rotating screw are connected through screws.

As a preferred embodiment of the above technical solution, a limit nut is provided on the rotating screw, and the limit nut is located above the movable rod. There are multiple movable holes on the side ears, and the plurality of movable holes are arranged on the side ears from bottom to top. set up.

The beneficial effects of the utility model are: the fixed structure of the ball mill barrel of the planetary ball mill of the utility model can be easily disassembled and cleaned, effectively prevents abrasives, etc. from entering the transmission structure of the planetary ball mill such as gears, and improves the efficiency of the planetary ball mill. The stability of instrument operation.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

Detailed ways

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. The orientation structure and operation of the invention cannot be construed as limitations of the present invention. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a removable connection. Detachable connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

As shown in Figure 1, the ball mill barrel fixing structure of the planetary ball mill. The planetary ball mill includes a turntable 1, a fixed gear 2 and a number of ball mill barrels. The turntable 1 is driven to rotate by a driving mechanism. The turntable 1 is provided with a number of ball mill barrel fixing structures. , The ball mill cylinder fixing structure is arranged in an array around the middle circumference of the turntable 1. The ball mill cylinder fixing structure includes an outer cylinder 3, a bottom plate 4 and a pressing mechanism. The bottom plate 4 is detachably connected to the lower end of the outer cylinder 3. A rotating shaft 5 is detachably connected to the middle part of the lower surface of the bottom plate 4. The turntable 1 is provided with a through hole 6 for the rotating shaft 5 to pass through. A bearing is provided in the through hole 6. After the rotating shaft 5 passes through the through hole 6, it is fixedly connected to the rotating shaft 5. Planetary gear 7, planetary gear 7 and fixed gear 2 are connected through a number of connecting gears 8. A number of baffle rings 10 are fixed on the turntable 1. The baffle rings 10 correspond to the through holes 6 one by one, and the baffle rings 10 correspond to the corresponding through holes 6. Coaxially arranged, the lower surface of the bottom plate 4 is provided with a number of annular grooves 9, the annular grooves 9 correspond to the baffle rings 10 one by one, the upper end of the baffle ring 10 can move into the corresponding annular groove 9, the The pressing mechanism includes a movable rod 11, a rotating screw 12 and a pressure plate 13. The upper end of the outer cylinder 3 is fixedly connected with side ears 14 on both sides. The side ears 14 are provided with movable holes 16. The movable rod 11 is set horizontally. The two ends of the movable rod 11 can be inserted into the movable hole 16 respectively. The middle part of the movable rod 11 is provided with a screw hole 17. The lower end of the rotating screw 12 is screwed into the screw hole 17 and then connected to the pressure plate 13. The upper end of the rotating screw 12 is connected to a handle 18. The outer cylinder 3, the bottom plate 4 and the rotating shaft 5 are all detachably connected. After disassembly, the entire ball mill cylinder fixed structure can be cleaned. The retaining ring 10 and the annular groove 9 prevent abrasives, etc. from entering the driving mechanism from the through hole 6, ensuring the stability of the planetary ball mill operation.

Furthermore, a number of threaded holes are provided on the upper and surrounding sides of the bottom plate 4, and a limiting platform 19 is provided on the lower end of the outer cylinder 3. Several screw holes correspond to the threaded holes one-to-one, and the base plate 4 and the outer cylinder 3 are fixedly connected by a plurality of screws. The outer cylinder 3 can be easily disassembled from the bottom plate 4 to clean the inner wall.

Further, a connecting hole is provided in the middle of the bottom plate 4, and the connecting hole is provided with an expanding section 20 and a constricting section 21 from top to bottom, and the upper end of the rotating shaft 5 is provided with a threaded section and a clamping plate 22 from top to bottom. The threaded section passes through the constricted section 21 from bottom to top and then extends into the expanded section 20 . The threaded section is threadedly connected with a clamping nut 23 . The bottom plate 4 can be easily removed from the rotating shaft 5 for cleaning and maintenance.

Furthermore, a sealing plug 24 is plugged into the expanded section 20 . The sealing plug 24 prevents the abrasive from leaking into the connecting hole.

Furthermore, the two sides of the movable rod 11 are respectively provided with clamping grooves 25, and the middle part of the lower surface of the pressure plate 13 is provided with a sinking groove 26. The middle part of the sinking groove 26 is provided with a mounting hole 27, and the lower end of the rotating screw 12 passes through it. After passing through the mounting hole 27, a limiting plate 28 is detachably connected, and the limiting plate 28 is located in the sinking groove 26. The slot 25 can hook the side ears 14 after the movable rod 11 extends into the movable hole 16 to improve the stability of the pressing mechanism.

Further, the limiting plate 28 is connected to the lower end of the rotating screw 12 through screws.

Further, a limit nut 29 is provided on the rotating screw 12, and the limit nut 29 is located above the movable rod 11. There are multiple movable holes 16 on the side ears 14, and the plurality of movable holes 16 are formed on the side ears 14 from Set from bottom to top. The limit nut 29 is used to limit the lifting stroke of the rotating screw 12, prevent the pressure plate 13 from excessively descending and crushing the ball mill barrel, and reduce the loosening of the pressure plate 13 caused by long-term vibration. A plurality of movable holes 16 are used for the selective insertion of the movable rod 11, so that the ball mill barrel can have different specifications and models.

It is worth mentioning that the technical features such as the driving mechanism and ball mill barrel involved in the utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement methods of these technical features are adopted. Routine selections in the field are sufficient and should not be regarded as the inventive point of the present utility model patent. The present utility model patent will not be further elaborated in detail.

The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative work. Therefore, those skilled in the art can The technical solutions that can be obtained through logical analysis, reasoning or limited experiments based on the concept of the present utility model and on the basis of the existing technology should all fall within the protection scope determined by the claims.

Claims (7)

1. The ball mill barrel fixing structure of the planetary ball mill. The planetary ball mill includes a turntable, a fixed gear and a plurality of ball mill barrels. The turntable is driven to rotate by a driving mechanism. The turntable is provided with a plurality of ball mill barrel fixing structures. The ball mill barrel fixed structure surrounds the turntable. Arranged in a circular array in the middle, the feature is that the ball mill barrel fixing structure includes an outer barrel, a bottom plate and a pressing mechanism. The bottom plate is detachably connected to the lower end of the outer barrel, and the middle part of the lower surface of the bottom plate is detachably connected. There is a rotating shaft, and the rotating disk is provided with a through hole for the rotating shaft to pass through. A bearing is provided in the through hole. After the rotating shaft passes through the through hole, a planetary gear is fixedly connected. The planetary gear and the fixed gear are connected through a number of connecting gears. The rotating disk A number of baffle rings are fixed on the top, and the baffle rings correspond to the through holes one by one. The baffle rings are coaxially arranged with the corresponding through holes. A number of annular grooves are provided on the lower surface of the base plate. The annular grooves correspond to the baffle rings one by one. The upper end of the ring can move into the corresponding annular groove. The pressing mechanism includes a movable rod, a rotating screw and a pressure plate. Side ears are fixedly connected to both sides of the upper end of the outer cylinder, and movable holes are provided on the side ears. , the movable rod is set horizontally, and both ends of the movable rod can be inserted into the movable holes respectively. There is a screw hole in the middle of the movable rod. The lower end of the rotating screw is screwed into the screw hole and then connected to the pressure plate. The upper end of the rotating screw is connected to a handle. 2. The fixing structure of the ball mill cylinder of the planetary ball mill as claimed in claim 1, characterized in that a number of threaded holes are provided around the base plate, a limiting platform is provided inside the lower end of the outer cylinder, and the upper end of the base plate is provided with a limiting platform on all sides. Close to the limiter, a number of screw holes are provided around the lower end of the outer cylinder. The screw holes correspond to the threaded holes one by one. The bottom plate and the outer cylinder are fixedly connected by a number of screws. 3. The ball mill barrel fixing structure of the planetary ball mill according to claim 1, characterized in that a connecting hole is provided in the middle of the bottom plate, and the connecting hole is provided with an expanding section and a shrinking section in sequence from top to bottom, and the rotating shaft The upper end is provided with threaded sections and clamping plates in sequence from top to bottom. The threaded section passes through the constriction section from bottom to top and then extends into the expanded section. The threaded section is threadedly connected with a clamping nut. 4. The ball mill barrel fixing structure of the planetary ball mill according to claim 3, characterized in that a sealing plug is plugged into the expanded section. 5. The ball mill barrel fixing structure of the planetary ball mill according to claim 1, characterized in that, both sides of the movable rod are respectively provided with clamping grooves, and the middle part of the lower surface of the pressure plate is provided with a sinking groove. There is a mounting hole in the middle. After the lower end of the rotating screw passes through the mounting hole, it can be detachably connected to the limit plate. The limit plate is located in the sink groove. 6. The ball mill barrel fixing structure of the planetary ball mill according to claim 5, characterized in that the limiting plate and the lower end of the rotating screw are connected by screws. 7. The ball mill barrel fixing structure of the planetary ball mill according to claim 6, characterized in that a limit nut is provided on the rotating screw, the limit nut is located above the movable rod, and the number of movable holes on the side ears is Multiple, multiple movable holes are arranged sequentially from bottom to top on the side ears.