CN112278742A

CN112278742A - Ball mill loading attachment

Info

Publication number: CN112278742A
Application number: CN202011135667.4A
Authority: CN
Inventors: 李浒; 李伯如; 李伯胜; 李长�
Original assignee: Zhuzhou Lianxin Metal Foundry Co ltd
Current assignee: Zhuzhou Lianxin Metal Foundry Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-01-29

Abstract

The invention discloses a ball mill feeding device which comprises a base and a driving shaft, wherein the upper surface of the base is fixedly connected with a first supporting plate, two fixed columns and two vertical columns, two ends of the driving shaft are connected with the first supporting plate, a driving roller is sleeved outside the driving shaft, the upper end of a material limiting device is connected with a feeding hopper, the upper end of each fixed column is provided with a first blind hole, the bottom surface of the first blind hole is connected with a return spring, the upper end of the return spring is connected with a telescopic column, the upper end of the telescopic column is connected with a second supporting plate, two ends of a tensioning roller are connected with the second supporting plate, the upper end of each vertical column is provided with a second blind hole, the upper half part of a threaded shaft is connected with an internal threaded sleeve in a matched mode, the upper end of the internal threaded sleeve is connected with a third supporting plate. Through the arrangement of the vertical column, the internal thread sleeve and the threaded shaft, the height of the ball mill can be adjusted, and the ball mill is suitable for ball mills of different specifications.

Description

Ball mill loading attachment

Technical Field

The invention relates to the technical field of ball mill feeding, in particular to a ball mill feeding device.

Background

Some materials need to be crushed by special equipment and then need to be crushed, and a ball mill is needed at the moment. The ball mill is widely applied to the production industries of cement, silicate products, novel building materials, refractory materials, fertilizers, nonferrous metal ore dressing, glass ceramics and the like, can be used for carrying out dry-type or wet-type grinding on various ores and other grindable materials, and is suitable for grinding various ores and other materials.

The ball mill is composed of a horizontal cylinder, a feeding and discharging hollow shaft, a grinding head and the like, wherein the cylinder is a long cylinder, a grinding body is arranged in the cylinder, the cylinder is made of a steel plate, a steel lining plate is fixed with the cylinder, the grinding body is generally a steel ball and is filled into the cylinder according to different diameters and a certain proportion, the material is selected according to the granularity of the grinding material, the material is filled into the cylinder from the hollow shaft at the feeding end of the ball mill, when the ball mill cylinder rotates, the grinding body is attached to the lining plate of the cylinder and is taken away by the cylinder due to the action of inertia and centrifugal force, when the ball mill cylinder is taken to a certain height, the grinding body is thrown down due to the action of gravity of the grinding body, and the falling grinding body breaks the material.

When the ball mill is used, the height of the ball mill is high, feeding needs to be carried out by means of a special ball mill feeding device, and the height of the existing ball mill feeding device is not adjustable, so that the ball mill feeding device is difficult to be suitable for ball mills of different specifications. In addition, at present, the ball mill is basically charged through a conveying device, a feeding hopper is arranged at the lower end of the conveying device, materials are stored in the feeding hopper, when the ball mill is in work, the materials fall onto the conveying device, the conveying device conveys the materials into the ball mill, but the quantity of the materials falling onto the conveying device by the feeding hopper is difficult to control, and if too many materials are conveyed into the ball mill each time, the materials are difficult to completely crush, so that the crushing effect is influenced; if the amount of materials fed into the ball mill is too small each time, the processing efficiency is seriously influenced.

Therefore, it is desirable to provide a ball mill feeding device, which aims to solve the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a ball mill feeding device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a ball mill feeding device comprises a base and a driving shaft, wherein the upper surface of the base is sequentially connected with a first supporting plate, two fixed columns and two vertical columns from left to right, two ends of the driving shaft are rotatably connected with the first supporting plate, a driving roller is sleeved outside the driving shaft, a material limiting device is arranged above the driving roller, the upper end of the material limiting device is connected with a feeding funnel, a cylindrical groove is arranged inside the material limiting device, a discharging roller is arranged in the cylindrical groove, a plurality of material storage grooves are formed in the side surface of the discharging roller, the discharging roller is sleeved outside the discharging shaft, the discharging shaft is connected with an output shaft of a third motor, a discharging port is arranged below the discharging roller, a first blind hole is formed in the upper end of the fixed column, a reset spring is connected to the bottom surface of the first blind hole, a telescopic column is connected to the upper end of the reset spring, a second supporting plate is connected to the upper end of the, the upper end of vertical post is provided with blind hole two, the latter half of screw thread axle is arranged in blind hole two, the lower extreme of screw thread axle is connected with the worm wheel, a worm is connected with two worm wheel cooperations, install bearing one in the blind hole two, the hole and the screw thread hub connection of bearing one, the first cooperation of screw thread axle is connected with the internal thread sleeve, the internal thread sleeve is the polygon prism form, the telescopic outside cover of internal thread is equipped with spacing frame, spacing frame passes through the connecting rod with vertical post and is connected, the telescopic upper end of internal thread is connected with backup pad three, the both ends and the backup pad three of driven voller rotate and are connected, the driven voller, drive roll and tensioning.

As a further scheme of the invention, a first motor and a second motor are fixedly installed on the upper surface of the base, an output shaft of the first motor is coaxially and fixedly connected with a driving shaft, an output shaft of the second motor is coaxially and fixedly connected with a worm, and the driving shaft is coaxially and fixedly connected with a driving roller.

As a further scheme of the invention, one worm is simultaneously connected with two vertical columns, a second bearing is fixedly mounted on the side wall of the second blind hole, an inner hole of the second bearing is fixedly connected with the side face of the worm, and the worm is rotatably connected with the vertical columns through the second bearing.

As a further scheme of the invention, the central line of the blanking shaft and the central line of the cylindrical groove are arranged in a collinear way, the plurality of material storage grooves are distributed in a circumferential array way relative to the central line of the blanking shaft, a tiny gap is arranged between the outer side surface of the blanking roller and the inner side wall of the cylindrical groove, and the blanking roller is coaxially and fixedly connected with the blanking shaft.

As a further scheme of the invention, the interior of the feeding hopper is communicated with the cylindrical groove, the side surface of the blanking shaft is rotatably connected with the front side wall and the rear side wall of the material limiting device, a third motor is fixedly installed on the rear side wall of the material limiting device, and an output shaft of the third motor is coaxially and fixedly connected with the blanking shaft.

As a further scheme of the invention, the central line of the driving roller is parallel to the central line of the tensioning roller, the central line of the tensioning roller is parallel to the central line of the driven roller, the lengths of the driving roller, the tensioning roller and the driven roller are the same, the outer surface of the conveying belt is fixedly connected with the anti-falling plate, and the anti-falling plate is arranged to effectively prevent materials from sliding downwards.

As a further scheme of the invention, the two fixed columns are symmetrically arranged in front and back directions relative to a symmetrical plane of the tensioning roller, the two vertical columns are symmetrically arranged in front and back directions relative to a symmetrical plane of the driven roller, and the number of the telescopic columns, the number of the threaded shafts and the number of the internally threaded sleeves are two.

As a further scheme of the invention, the internal thread sleeve is quadrangular, the inner side surface of the limit frame is connected with the outer side surface of the internal thread sleeve in a sliding fit manner, the threaded shaft is vertically arranged, the central line of the worm is perpendicular to the central line of the threaded shaft, the first bearing is an angular contact ball bearing or a thrust roller bearing, and the angular contact ball bearing and the thrust roller bearing can bear larger axial force and radial force.

As a further scheme of the invention, the side surface of the telescopic column is connected with the inner side wall of the first blind hole in a sliding fit manner, the return spring is always in an extended state, so that the conveyor belt is always tensioned, the lower end of the material limiting device is connected with the surface of the base through a plurality of support columns, and a discharge hole in the material limiting device is positioned above the left end of the conveyor belt.

In conclusion, the beneficial effects of the invention are as follows:

through the arrangement of the vertical column, the internal thread sleeve, the threaded shaft, the worm wheel and the worm, the height of the ball mill can be adjusted so as to be suitable for ball mills of different specifications; according to the invention, through the arrangement of the tensioning roller, the fixed column, the reset spring and the telescopic column, the tensioning roller can tension the conveyor belt all the time, so that the stability of material conveying is ensured; through the arrangement of the discharging roller and the material storage groove, the invention can control the material conveying amount, thereby ensuring the crushing effect of the ball mill.

Drawings

Fig. 1 is a schematic front structural diagram of a ball mill feeding device.

Fig. 2 is a schematic diagram of a partial three-dimensional structure of a feeding device of a ball mill.

FIG. 3 is a connection diagram of a worm gear and a worm in a feeding device of a ball mill.

FIG. 4 is a connection relationship diagram of a blanking roller and a motor III in a feeding device of a ball mill.

Reference numerals: 1-feeding hopper, 2-material limiting device, 3-blanking roller, 4-material storage tank, 5-blanking shaft, 6-discharge port, 7-support column, 8-support plate I, 9-driving shaft, 10-driving roller, 11-base, 12-conveyor belt, 13-anti-falling plate, 14-fixed column, 15-reset spring, 16-telescopic column, 17-support plate II, 19-driven roller, 20-support plate III, 21-internal thread sleeve, 22-thread shaft, 23-limit frame, 24-connecting rod, 25-vertical column, 26-bearing I, 27-blind hole II, 28-worm wheel, 29-worm, 30-motor I, 31-tensioning roller, 32-motor II, 33-motor III, 34-bearing two.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1, 2, 3 and 4, a ball mill feeding device comprises a base 11 and a driving shaft 9, wherein the upper surface of the base 11 is sequentially connected with two supporting plates 8, two fixed columns 14 and two vertical columns 25 from left to right, two ends of the driving shaft 9 are rotatably connected with the supporting plates 8, the outer side of the driving shaft 9 is sleeved with a driving roller 10, a material limiting device 2 is arranged above the driving roller 10, the upper end of the material limiting device 2 is connected with a feeding hopper 1, a cylindrical groove is arranged inside the material limiting device 2, a discharging roller 3 is arranged in the cylindrical groove, a plurality of material storage grooves 4 are arranged on the side surface of the discharging roller 3, the discharging roller 3 is sleeved on the outer side of the discharging shaft 5, the discharging shaft 5 is connected with an output shaft of a motor III 33, a discharging port 6 is arranged below the discharging roller 3, a first blind hole is arranged at the upper end of the fixed column 14, and a return spring 15 is connected, the upper end of the return spring 15 is connected with a telescopic column 16, the upper end of the telescopic column 16 is connected with a second support plate 17, the two ends of the tension roller 31 are rotatably connected with the second support plate 17, the upper end of the vertical column 25 is provided with a second blind hole 27, the lower half part of the threaded shaft 22 is positioned in the second blind hole 27, the lower extreme of screw shaft 22 is connected with worm wheel 28, a worm 29 is connected with two worm wheel 28 cooperations, install bearing one 26 in the blind hole two 27, the hole and the screw shaft 22 of bearing one 26 are connected, the first half cooperation of screw shaft 22 is connected with interior screw sleeve 21, interior screw sleeve 21 is the polygon prism form, the outside cover of interior screw sleeve 21 is equipped with spacing frame 23, spacing frame 23 passes through connecting rod 24 with vertical post 25 and is connected, the upper end of interior screw sleeve 21 is connected with backup pad three 20, the both ends of driven voller 19 are rotated with backup pad three 20 and are connected, driven voller 19, drive roll 10 and tensioning roller 31 pass through conveyer belt 12 and connect.

The upper surface of the base 11 is fixedly provided with a first motor 30 and a second motor 32, an output shaft of the first motor 30 is coaxially and fixedly connected with the driving shaft 9, an output shaft of the second motor 32 is coaxially and fixedly connected with the worm 29, and the driving shaft 9 is coaxially and fixedly connected with the driving roller 10.

The worm 29 is connected with the two vertical columns 25 simultaneously, a second bearing 34 is fixedly mounted on the side wall of the second blind hole 27, an inner hole of the second bearing 34 is fixedly connected with the side face of the worm 29, and the worm 29 is rotatably connected with the vertical columns 25 through the second bearing 34.

The central line of unloading axle 5 and the central line collineation of cylindrical groove set up, the several it is distributed that storage tank 4 is the circumference array about the central line of unloading axle 5, is equipped with the micro-gap between the lateral surface of unloading roller 3 and the inboard wall in cylindrical groove, and unloading roller 3 and the coaxial fixed connection of unloading axle 5.

The inside and the cylindrical groove intercommunication of feed hopper 1, the lateral surface of unloading axle 5 rotates with the front and back lateral wall of limit material device 2 to be connected, and fixed mounting has motor three 33 on the rear wall of limit material device 2, and the output shaft of motor three 33 and the coaxial fixed connection of unloading axle 5.

Example 2

Referring to fig. 1, 2, 3 and 4, this embodiment further illustrates a feeding device of a ball mill according to embodiment 1, in which a central line of the driving roller 10 is parallel to a central line of the tension roller 31, a central line of the tension roller 31 is parallel to a central line of the driven roller 19, lengths of the driving roller 10, the tension roller 31 and the driven roller 19 are the same, an anti-falling plate 13 is fixedly connected to an outer surface of the conveyor belt 12, and the anti-falling plate 13 is arranged to effectively prevent a material from sliding down.

The two fixed columns 14 are symmetrically arranged in front and back of the symmetry plane of the tension roller 31, the two vertical columns 25 are symmetrically arranged in front and back of the symmetry plane of the driven roller 19, and the number of the telescopic columns 16, the number of the threaded shafts 22 and the number of the internally threaded sleeves 21 are two.

The internal thread sleeve 21 is quadrangular, the inner side face of the limiting frame 23 is connected with the outer side face of the internal thread sleeve 21 in a sliding fit mode, the threaded shaft 22 is vertically arranged, the center line of the worm 29 is perpendicular to the center line of the threaded shaft 22, the first bearing 26 is an angular contact ball bearing or a thrust roller bearing, and the angular contact ball bearing and the thrust roller bearing can bear large axial force and radial force.

The side of flexible post 16 is connected with the inside wall sliding fit of blind hole one, reset spring 15 is in the extension state always, and conveyer belt 12 will be taut always like this, the lower extreme of limit material device 2 is connected with the surface of base 11 through several support columns 7, and discharge gate 6 on the limit material device 2 is located the top of conveyer belt 12 left end department, and other structures of this embodiment and connected mode are the same with embodiment 1 completely.

The working process of the embodiment of the invention is as follows: first remove this device to the feed inlet department of ball mill, starter motor two 32, worm 29 begins to rotate and takes worm wheel 28 to rotate, threaded shaft 22 follows the rotation, the internal thread sleeve 21 of being connected with the cooperation of threaded shaft 22 is because of receiving the restriction of spacing frame 23, internal thread sleeve 21 can only be linear motion in the vertical direction, three 20 in the backup pad follow the lift, and then the height of driven roller 19 is adjusted, make the high-end of conveyer belt 12 slightly be higher than the feed inlet of ball mill can, then close motor two 32.

And then, pouring the materials to be processed into the feeding hopper 1, starting the motor III 33 and the motor I30, starting the rotation of the discharging roller 3 and the driving roller 10, enabling only a certain amount of materials to enter the material storage tank 4 and fall onto the conveying belt 12 when the discharging roller 3 rotates for one circle, and finally conveying the materials into the ball mill by the conveying belt 12. Through the arrangement of the vertical column 25, the internal thread sleeve 21, the threaded shaft 22, the worm wheel 28 and the worm 29, the height of the ball mill can be adjusted to be suitable for ball mills of different specifications; according to the invention, through the arrangement of the tensioning roller 31, the fixed column 14, the return spring 15 and the telescopic column 16, the tensioning roller 31 can always tension the conveyor belt 12, so that the stability of material conveying is ensured; through the arrangement of the blanking roller 3 and the material storage tank 4, the invention can control the material conveying amount, thereby ensuring the crushing effect of the ball mill.

The present invention has been described in detail with reference to the preferred embodiments thereof, and it should be understood that the invention is not limited thereto, but is intended to cover modifications, equivalents, and improvements within the spirit and scope of the present invention.

Claims

1. A ball mill feeding device comprises a base (11) and a driving shaft (9), and is characterized in that the upper surface of the base (11) is sequentially connected with two supporting plates I (8), two fixing columns (14) and two vertical columns (25) from left to right, two ends of the driving shaft (9) are rotatably connected with the supporting plates I (8), a driving roller (10) is sleeved outside the driving shaft (9), a material limiting device (2) is arranged above the driving roller (10), the upper end of the material limiting device (2) is connected with a feeding hopper (1), a cylindrical groove is arranged inside the material limiting device (2), a discharging roller (3) is arranged in the cylindrical groove, a plurality of material storage grooves (4) are arranged on the side surface of the discharging roller (3), the discharging roller (3) is sleeved outside the discharging shaft (5), the discharging shaft (5) is connected with an output shaft of a motor III (33), a discharge hole (6) is arranged below the blanking roller (3), a first blind hole is formed in the upper end of a fixed column (14), a reset spring (15) is connected to the bottom surface of the first blind hole, a telescopic column (16) is connected to the upper end of the reset spring (15), a second support plate (17) is connected to the upper end of the telescopic column (16), two ends of a tensioning roller (31) are rotatably connected with the second support plate (17), a second blind hole (27) is formed in the upper end of a vertical column (25), a worm wheel (28) is connected to the lower end of a threaded shaft (22), a worm (29) is connected with the two worm wheels (28) in a matching manner, a first bearing (26) is installed in the second blind hole (27), an inner hole of the first bearing (26) is connected with the threaded shaft (22), an internal threaded sleeve (21) is connected to the upper half part of the threaded shaft (22) in a matching manner, the internal threaded sleeve, the limiting frame (23) is connected with the vertical column (25) through a connecting rod (24), the upper end of the internal thread sleeve (21) is connected with a third support plate (20), two ends of the driven roller (19) are rotatably connected with the third support plate (20), and the driven roller (19), the driving roller (10) and the tensioning roller (31) are connected through the conveyor belt (12).

2. The feeding device of the ball mill according to the claim 1, characterized in that a first motor (30) and a second motor (32) are fixedly installed on the upper surface of the base (11), the output shaft of the first motor (30) is coaxially and fixedly connected with the driving shaft (9), the output shaft of the second motor (32) is coaxially and fixedly connected with the worm (29), and the driving shaft (9) is coaxially and fixedly connected with the driving roller (10).

3. The ball mill feeding device according to the claim 2, characterized in that one worm (29) is connected with two vertical columns (25) simultaneously, a second bearing (34) is fixedly installed on the side wall of the second blind hole (27), the inner hole of the second bearing (34) is fixedly connected with the side surface of the worm (29), and the worm (29) is rotatably connected with the vertical columns (25) through the second bearing (34).

4. The ball mill feeding device according to claim 1, characterized in that the central line of the blanking shaft (5) and the central line of the cylindrical groove are arranged in a collinear manner, a plurality of the storage grooves (4) are distributed in a circumferential array with respect to the central line of the blanking shaft (5), a gap is arranged between the outer side surface of the blanking roller (3) and the inner side wall of the cylindrical groove, and the blanking roller (3) is coaxially and fixedly connected with the blanking shaft (5).

5. The ball mill feeding device according to claim 4, characterized in that the feeding funnel (1) is communicated with the cylindrical groove, the side surface of the feeding shaft (5) is rotatably connected with the front and rear side walls of the material limiting device (2), the rear side wall of the material limiting device (2) is fixedly provided with a motor III (33), and the output shaft of the motor III (33) is coaxially and fixedly connected with the feeding shaft (5).

6. The ball mill feeding device according to claim 1, characterized in that the central line of the driving roller (10) is parallel to the central line of the tension roller (31), the central line of the tension roller (31) is parallel to the central line of the driven roller (19), the lengths of the driving roller (10), the tension roller (31) and the driven roller (19) are the same, and a plurality of anti-falling plates (13) are fixedly connected to the outer surface of the conveyor belt (12).

7. A ball mill feeding device according to claim 1, characterized in that two of the fixed posts (14) are symmetrically arranged back and forth about the symmetry plane of the tension roller (31), two of the vertical posts (25) are symmetrically arranged back and forth about the symmetry plane of the driven roller (19), and the number of the telescopic posts (16), the threaded shaft (22) and the internally threaded sleeve (21) is two.

8. The ball mill feeding device according to claim 7, characterized in that the internally threaded sleeve (21) is quadrangular prism-shaped, the inner side surface of the limiting frame (23) is connected with the outer side surface of the internally threaded sleeve (21) in a sliding fit manner, the threaded shaft (22) is vertically arranged, the central line of the worm (29) is perpendicular to the central line of the threaded shaft (22), and the first bearing (26) is an angular contact ball bearing or a thrust roller bearing.

9. The ball mill feeding device according to claim 1, characterized in that the side surface of the telescopic column (16) is connected with the inner side wall of the first blind hole in a sliding fit manner, the lower end of the material limiting device (2) is connected with the surface of the base (11) through a plurality of support columns (7), and the discharge hole (6) on the material limiting device (2) is positioned above the left end of the conveyor belt (12).