CN221772412U - An adjustable ball mill - Google Patents

Abstract

The utility model is applicable to the technical field of ball mills, and provides an adjustable ball mill, comprising an outer cylinder, an inner cylinder, a first stepper motor, a plate body, a turntable and a driving mechanism, wherein the plate body comprises an outer sleeve and an inner plate, the driving mechanism comprises a driven gear, a double-sided gear ring, a double-shaft motor, a rotating shaft and a driving gear, a material port is provided at one end of the inner cylinder away from the first stepper motor, a valve assembly for matching the material port is installed on the end wall of the outer cylinder, and the valve assembly comprises a first door plate, a second stepper motor, a screen and a second door plate. The utility model arranges an outer cylinder, an inner cylinder, a first stepper motor, a plate body, a turntable and a driving mechanism, and the first stepper motor drives the inner cylinder to rotate. When the inner cylinder rotates, steel balls and materials are repeatedly lifted upward by a plurality of plate bodies, and the steel balls and materials fall after reaching a certain height, so that the materials are fully ground, and the height to which the steel balls and materials are lifted upward can be adjusted, and the steel balls and materials can be repeatedly stirred, so as to improve the grinding efficiency.

Description

Adjustable ball mill

Technical Field

The utility model belongs to the technical field of ball mills, and particularly relates to an adjustable ball mill.

Background

The ball mill is a key device for crushing materials after the materials are crushed. This type of mill is one in which a number of steel balls are inserted into its cylinder as grinding media.

For example, lithium iron phosphate is mainly used in various lithium ion batteries, in the process of preparing lithium iron phosphate, a ball mill is often needed, when a ball mill cylinder rotates, a grinding body is attached to a cylinder lining plate and taken away by the cylinder under the action of inertia and centrifugal force and friction force, and when the grinding body is taken to a certain height, the grinding body is thrown down under the action of gravity.

The existing ball mill utilizes inertia, centrifugal force and friction force to lift grinding bodies, most of grinding bodies are piled up at the bottom of the inner cavity of the cylinder, and only a small part of grinding bodies contacted with the inner wall of the cylinder can be driven, so that the quantity of the grinding bodies is small, and the height of the grinding bodies can be limited.

Disclosure of utility model

The utility model provides an adjustable ball mill, which aims to solve the problems.

The utility model is realized in that an adjustable ball mill comprises: an outer cylinder; an inner cylinder coaxially and rotatably arranged in an outer cylinder, wherein one end of the outer cylinder is fixedly provided with a first stepping motor for driving the inner cylinder to rotate; the plate bodies comprise an outer sleeve and an inner plate, wherein the inner plate is movably inserted into the outer sleeve, and the outer sleeve is hinged with the inner side wall of the inner cylinder; the diameter of the turntables is smaller than the width of the outer sleeve, the turntables are in rotary connection with the inner sleeve, a horizontal driving shaft is eccentrically and fixedly connected between the two opposite turntables, and the driving shaft penetrates through one end of the inner plate, which is positioned in the outer sleeve; and the driving mechanism is used for driving the turntable to rotate.

Preferably, the driving mechanism includes: driven gears are coaxially fixed on each turntable, and all driven gears are positioned outside the inner cylinder and distributed at intervals in the circumferential direction; the double-sided gear rings are rotatably arranged on the two end walls of the inner cylinder, and the inner gear ring is meshed with all driven gears on the same side; the double-shaft motor is fixed on the outer side wall of the inner cylinder, two output shafts of the double-shaft motor are respectively fixedly connected with a rotating shaft, the rotating shafts are rotatably arranged on the outer side wall of the inner cylinder, a driving gear is fixed on the rotating shafts, and the driving gear is meshed with the double-sided gear ring on the same side.

Preferably, a sound absorbing layer is fixed on the inner wall of the outer cylinder.

Preferably, a feed port is arranged at one end of the inner cylinder far away from the first stepping motor, and a valve component of the feed port is arranged on the end wall of the outer cylinder.

Preferably, the valve assembly comprises: a first door panel; the second stepping motor is arranged at one side of the first door plate and is fixed on the end wall of the outer cylinder, and an output shaft of the second stepping motor is fixedly connected with the first door plate; the through hole is arranged on the first door plate and corresponds to the material inlet, and a screen is arranged in the through hole; and the two second door plates are rotatably arranged on the side wall of the first door plate far away from the outer cylinder and are connected through a hasp.

Preferably, a step for supporting the edge of the screen is formed in the through hole, and a plurality of compression springs are fixedly connected between the edge of the screen and the step at intervals.

Preferably, the outer cylinder is mounted on a mounting frame, the mounting frame comprising: a bottom plate; the outer cylinder is positioned between the two side plates, mounting shafts are respectively fixed on the two side walls of the outer cylinder, and the mounting shafts are rotationally connected with the adjacent side plates; and the output shaft of the third stepping motor is in driving connection with the adjacent installation shaft through a gear pair.

Preferably, a blanking conveyer belt is arranged on the bottom plate below the outer cylinder.

Compared with the prior art, the embodiment of the utility model has the following main beneficial effects: according to the adjustable ball mill provided by the utility model, the outer cylinder, the inner cylinder, the first stepping motor, the plate body, the rotary table and the driving mechanism are arranged, the plate body comprises the outer sleeve and the inner plate, the first stepping motor drives the inner cylinder to rotate, when the inner cylinder rotates, the steel balls and the materials are repeatedly lifted up through the plurality of plate bodies, the steel balls and the materials fall down after the steel balls and the materials reach a certain height, the materials are sufficiently ground, the angle of the plate body can be adjusted through the driving mechanism, so that the height for lifting up the steel balls and the materials can be adjusted, the rotary table can be driven to continuously rotate through the driving mechanism, the rotary table drives the driving shaft to continuously revolve, the driving shaft drives the plate body to repeatedly stretch and swing, the steel balls and the materials can be repeatedly stirred, and the grinding efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of an adjustable ball mill provided by the utility model.

Fig. 2 is a schematic structural view of an outer cylinder, an inner cylinder, a plate body and a turntable in the adjustable ball mill.

Fig. 3 is a schematic structural view of a driven gear and a double-sided gear ring in an adjustable ball mill.

Fig. 4 is an enlarged view at a in fig. 1.

Fig. 5 is a schematic structural view of an outer cylinder, a mounting frame and a blanking conveyer belt in the adjustable ball mill.

Fig. 6 is a schematic view of another view angle of an adjustable ball mill according to the present utility model.

Reference numerals annotate: 1. an outer cylinder; 2. a first stepping motor; 3. an inner cylinder; 4. a driven gear; 5. double-sided gear ring; 6. a turntable; 7. a plate body; 71. a jacket; 72. an inner plate; 73. a drive shaft; 8. a sound absorbing layer; 9. a first door panel; 10. a screen; 11. a second door panel; 12. a compression spring; 13. a second stepping motor; 14. a drive gear; 15. a rotating shaft; 16. a biaxial motor; 17. a bottom plate; 18. a side plate; 19. a blanking conveying belt; 20. a third stepper motor; 21. a gear pair; 22. and (5) mounting a shaft.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The embodiment of the utility model provides an adjustable ball mill, as shown in fig. 1-4, comprising: an outer cylinder 1; the inner cylinder 3 is coaxially and rotatably arranged in the outer cylinder 1, one end of the outer cylinder 1 is fixedly provided with a first stepping motor 2 for driving the inner cylinder 3 to rotate, and an output shaft of the first stepping motor 2 can be fixedly welded with one end of the inner cylinder 3 through screw fixation; the plate bodies 7 are hinged to the inner side wall of the inner cylinder 3 at intervals in the circumferential direction, the plate bodies 7 comprise outer sleeves 71 and inner plates 72, the inner plates 72 are movably inserted into the outer sleeves 71, and the outer sleeves 71 are hinged to the inner side wall of the inner cylinder 3; the rotating discs 6 are arranged on two sides of each plate body 7, the diameter of each rotating disc 6 is smaller than the width of the outer sleeve 71, each rotating disc 6 is rotationally connected with the inner sleeve 3, a horizontal driving shaft 73 is eccentrically and fixedly connected between the two opposite rotating discs 6, and the driving shafts 73 penetrate through one end of the inner plate 72, which is positioned in the outer sleeve 71; and the driving mechanism is used for driving the turntable 6 to rotate.

During operation, steel balls and materials are placed in the inner cylinder 3, then the first stepping motor 2 is started, the inner cylinder 3 is driven to rotate, when the inner cylinder 3 rotates, the steel balls and the materials are repeatedly lifted upwards through the plurality of plate bodies 7, the steel balls and the materials fall down after reaching a certain height, the materials are fully ground, the turntable 6 is driven by the driving mechanism to rotate by a set angle, the turntable 6 drives the driving shaft 73 to revolve, the driving shaft 73 drives the inner plate 72 to move telescopically relative to the outer sleeve 71, the length of the plate body 7 is adjusted, and meanwhile, the plate body 7 is driven to rotate to adjust the angle, so that the height for lifting the steel balls and the materials upwards can be adjusted.

Wherein, the actuating mechanism includes: driven gears 4 are coaxially fixed on each turntable 6, and all the driven gears 4 are positioned outside the inner cylinder 3 and distributed at intervals in the circumferential direction; the double-sided gear rings 5 are rotatably arranged on the two end walls of the inner cylinder 3 and can be rotatably arranged through bearings, and the inner gear rings are meshed with all driven gears 4 on the same side; the double-shaft motor 16 fixed on the outer side wall of the inner cylinder 3 can be fixed through screws, the double-shaft motor 16 can be powered by adopting an electric brush mode, two output shafts of the double-shaft motor 16 are respectively and fixedly connected with a rotating shaft 15, the rotating shafts 15 are rotatably arranged on the outer side wall of the inner cylinder 3 and can be rotatably arranged through bearings and bearing seats, a driving gear 14 is fixed on the rotating shaft 15, and the driving gear 14 is meshed with the double-sided gear ring 5 on the same side; the double-shaft motor 16 drives the rotating shaft 15 to rotate, the rotating shaft 15 drives the driving gear 14 to rotate, the driving gear 14 drives the double-sided gear ring 5 to rotate, the double-sided gear ring 5 drives the driven gear 4 to rotate, and the driven gear 4 drives the turntable 6 to rotate.

Preferably, the sound absorbing layer 8 is fixed on the inner wall of the outer cylinder 1, and the sound absorbing layer 8 can be adhered by glue, and the material of the sound absorbing layer 8 can be sponge, so that noise pollution during working is reduced.

In a specific implementation, a material port is arranged at one end of the inner cylinder 3 far away from the first stepping motor 2, and a valve component of the material port is arranged on the end wall of the outer cylinder 1.

Further, the valve assembly includes: a first door panel 9; the second stepping motor 13 is arranged on one side of the first door plate 9, the second stepping motor 13 is fixed on the end wall of the outer cylinder 1 and can be fixed through screws, and an output shaft of the second stepping motor 13 is fixedly connected with the first door plate 9; the through hole is arranged on the first door plate 9 and corresponds to the material inlet, and a screen 10 is arranged in the through hole; two second door plates 11 which are arranged on the side wall of the first door plate 9 far away from the outer cylinder 1 in a rotary mode and are split in opposite directions are connected with each other through a hasp; during feeding, the first door plate 9 is driven to rotate through the second stepping motor 13, the material opening is completely opened, feeding is facilitated, the second door plate 11 is opened during discharging, the outer cylinder 1 rotates to enable the material opening to face downwards, the ground material falls from meshes of the screen mesh 10, the steel balls are blocked, one steel ball is not required to be discharged every time, and the steel balls are manually picked out and put back into the inner cylinder 3, so that the working efficiency is improved.

Further, steps for supporting the edges of the screen cloth 10 are arranged in the through holes, and a plurality of compression springs 12 are fixedly connected between the edges of the screen cloth 10 and the steps at intervals.

During discharging, the inner cylinder 3 can be kept to rotate, so that the steel balls and the materials keep moving and contact with the screen 10, and the screen 10 vibrates, thereby being beneficial to accelerating the discharging speed.

In this embodiment, as shown in fig. 5 to 6, the outer cylinder 1 is mounted on a mounting frame.

Further, the mounting frame includes: a bottom plate 17; the two side plates 18 symmetrically fixed on the bottom plate 17 can be fixed by welding, the outer cylinder 1 is positioned between the two side plates 18, the two side walls of the outer cylinder 1 are respectively fixed with a mounting shaft 22, and the mounting shafts 22 are rotationally connected with the adjacent side plates 18 and can be rotationally connected with a bearing seat through bearings; the third stepping motor 20 is fixed on one side wall and can be fixed through bolts, the third stepping motor 20 is a forward and reverse rotating motor, and an output shaft of the third stepping motor 20 is in driving connection with an adjacent installation shaft 22 through a gear pair 21; when grinding, the third stepping motor 20 can be started, the third stepping motor 20 drives the installation shaft 22 to rotate positively and negatively by a set angle through the gear pair 21, the installation shaft 22 drives the outer cylinder 1 and the inner cylinder 3 to tilt and swing, so that the steel balls and materials of the inner cylinder 3 move fully, the grinding efficiency is improved, and when the material is discharged, the outer cylinder 1 can be driven to rotate to the material opening downwards, and the material is conveniently discharged.

Further, a blanking conveyer belt 19 is installed on the bottom plate 17 below the outer cylinder 1, and the material falling from the material opening falls onto the blanking conveyer belt 19 and is conveyed to a subsequent process.

In summary, the utility model provides an adjustable ball mill, which has the following working principle: the steel ball and the material are put into the inner cylinder 3, then the first stepping motor 2 is started to drive the inner cylinder 3 to rotate, when the inner cylinder 3 rotates, the steel ball and the material are repeatedly lifted upwards through the plurality of plate bodies 7, the steel ball and the material fall down after reaching a certain height, the material is fully ground, the turntable 6 is driven by the driving mechanism to rotate by a set angle, the turntable 6 drives the driving shaft 73 to revolve, the driving shaft 73 drives the inner plate 72 to move telescopically relative to the outer sleeve 71, the length of the plate bodies 7 is adjusted, the plate bodies 7 are simultaneously driven to rotate to adjust the angle, thereby the height for lifting the steel ball and the material upwards can be adjusted, the turntable 6 can be driven by the driving mechanism to continuously rotate, the driving shaft 73 is driven by the turntable 6 to repeatedly stretch and swing, the steel ball and the material can be repeatedly stirred, the grinding efficiency is improved, when the material is discharged, the second door plate 11 is opened, the outer cylinder 1 rotates to enable the material to fall down from meshes of the screen 10, the steel ball is blocked, and the material falling down from the material opening onto the material conveying belt 19 to a backward procedure.

When grinding, the third stepping motor 20 can be started, the third stepping motor 20 drives the installation shaft 22 to rotate positively and negatively by a set angle through the gear pair 21, the installation shaft 22 drives the outer cylinder 1 and the inner cylinder 3 to tilt and swing, so that the steel balls and materials of the inner cylinder 3 move fully, the grinding efficiency is improved, and when the material is discharged, the outer cylinder 1 can be driven to rotate to the material opening downwards, and the material is conveniently discharged.

It should be noted that, for the sake of simplicity of description, the foregoing embodiments are all described as a series of combinations of actions, but it should be understood by those skilled in the art that the present utility model is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present utility model. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present utility model.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present utility model or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present utility model, which also falls within the scope of the present utility model.

Claims (5)

1. An adjustable ball mill, comprising:

an outer cylinder;

An inner cylinder coaxially and rotatably arranged in an outer cylinder, wherein one end of the outer cylinder is fixedly provided with a first stepping motor for driving the inner cylinder to rotate;

The plate bodies comprise an outer sleeve and an inner plate, wherein the inner plate is movably inserted into the outer sleeve, and the outer sleeve is hinged with the inner side wall of the inner cylinder;

The diameter of the turntables is smaller than the width of the outer sleeve, the turntables are in rotary connection with the inner sleeve, a horizontal driving shaft is eccentrically and fixedly connected between the two opposite turntables, and the driving shaft penetrates through one end of the inner plate, which is positioned in the outer sleeve;

the driving mechanism is used for driving the turntable to rotate;

The one end that first stepper motor was kept away from to the inner tube is equipped with the feed inlet, install the valve subassembly of batch inlet on the urceolus end wall, the valve subassembly includes:

A first door panel;

The second stepping motor is arranged at one side of the first door plate and is fixed on the end wall of the outer cylinder, and an output shaft of the second stepping motor is fixedly connected with the first door plate;

the through hole is arranged on the first door plate and corresponds to the material inlet, and a screen is arranged in the through hole;

two second door plates which are arranged on the side wall of the first door plate far away from the outer cylinder in a rotary mode and are split in opposite directions are connected through a hasp;

The through hole is internally provided with a step for supporting the edge of the screen, and a plurality of compression springs are fixedly connected between the edge of the screen and the step at intervals.

2. An adjustable ball mill according to claim 1, wherein said drive mechanism comprises:

Driven gears are coaxially fixed on each turntable, and all driven gears are positioned outside the inner cylinder and distributed at intervals in the circumferential direction;

the double-sided gear rings are rotatably arranged on the two end walls of the inner cylinder, and the inner gear ring is meshed with all driven gears on the same side;

The double-shaft motor is fixed on the outer side wall of the inner cylinder, two output shafts of the double-shaft motor are respectively fixedly connected with a rotating shaft, the rotating shafts are rotatably arranged on the outer side wall of the inner cylinder, a driving gear is fixed on the rotating shafts, and the driving gear is meshed with the double-sided gear ring on the same side.

3. An adjustable ball mill according to claim 1, wherein a sound absorbing layer is fixed to the inner wall of the outer tub.

4. An adjustable ball mill according to claim 1 wherein said outer barrel is mounted on a mounting frame, said mounting frame comprising:

A bottom plate;

The outer cylinder is positioned between the two side plates, mounting shafts are respectively fixed on the two side walls of the outer cylinder, and the mounting shafts are rotationally connected with the adjacent side plates;

And the output shaft of the third stepping motor is in driving connection with the adjacent installation shaft through a gear pair.

5. An adjustable ball mill according to claim 4 wherein a blanking conveyor is mounted on said base plate below said outer bowl.