Ball-milling cylinder structure and ball-milling device

Abstract

The utility model relates to the technical field of ball milling, in particular to a ball milling barrel structure and a ball milling device, which comprise an obliquely arranged barrel body and a rotating shaft, the oblique upper end of the barrel body is rotatably connected with a feeding body, and the oblique upper end of the rotating shaft is fixedly connected with the oblique part of the barrel body; a material grinding shaft is arranged in the cylinder body; a discharging ring opening is formed in the inclined lower end of the cylinder body, and a discharging box is rotationally arranged at the inclined lower end of the cylinder body; the interior of the barrel body is divided into a coarse screening chamber, a medium screening chamber and a fine screening chamber through a coarse screening disc and a fine screening disc, a plurality of coarse grinding balls, medium grinding balls and fine grinding balls are arranged in the coarse screening chamber, the medium screening chamber and the fine screening chamber respectively, and grinding devices are arranged on the portions, located in the coarse screening chamber, the medium screening chamber and the fine screening chamber, of the grinding shaft; a feeding through opening is formed in the feeding body, the lower portion of the feeding through opening communicates with the coarse screening chamber, and the upper end of the feeding through opening communicates with a feeding hopper. Metal particles with different particle sizes are subjected to ball milling of different levels, it is guaranteed that the particle sizes of milled powder are uniform, the contact probability of the metal particles or the powder in the barrel body, the grinding device and the grinding balls is increased by combining with the arrangement of the grinding device, and the grinding quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball mill technical field, concretely relates to a ball mill barrel structure and ball mill device. BACKGROUND

[0002] Metal and metal-based composite new material is a kind of material with excellent characteristics, usually by metal or alloy and another phase (such as ceramic, polymer, etc.) combination, form the new material with specific performance.This kind of material has been widely used in aerospace, automobile, electronic, medical field, etc.

[0003] The method for preparing metal and metal-based composite new material includes powder metallurgy, hot pressing forming, etc., and powder metallurgy and hot pressing forming all need to use metal powder as raw material to make, so grinding metal into powder is the necessary step for preparing metal and metal-based composite new material.

[0004] The utility model provides a novel ball mill barrel structure and ball mill device to metal powder operation, guarantee the whole structure stable, and powder is efficiently fast, and powder effect is good and flexible. UTILITY MODEL CONTENTS

[0005] The utility model provides a ball mill barrel structure and ball mill device to reach guarantee the whole structure stable, and powder is efficiently fast, and powder effect is good and flexible purpose.

[0006] To reach the above-mentioned purpose, the technical scheme of the utility model is as follows: provide a ball mill barrel structure, its innovation point lies at: include the oblique setting of barrel body and pivot, the oblique upper end opening of barrel body is connected with the feeding body rotation, the oblique lower end face center of pivot is fixedly connected barrel body in the oblique upper end, be equipped with the grinding material axle along the axle center in barrel body, and the grinding material axle both ends are fixed in the feeding body and the oblique lower end face of barrel body, the oblique lower end of barrel body is rotationally equipped with the discharge box, and the oblique lower end face of barrel body is equipped with the discharge ring mouth and is connected with the discharge box and the inside of barrel body, and the lower end outside of discharge box is equipped with the discharge port, and the pivot rotation is set through the discharge box, the barrel body is by the oblique upper end to the lower end through coarse screen disc and fine screen disc and is divided into coarse screen chamber, middle screen chamber and fine screen chamber, and a plurality of coarse grinding balls, medium grinding balls and fine grinding balls are respectively equipped in coarse screen chamber, middle screen chamber and fine screen chamber, and grinding material device is equipped on the part of grinding material axle in coarse screen chamber, middle screen chamber and fine screen chamber, the upper portion of feeding body is equipped with the feeding through hole, and the lower portion of feeding through hole is inclined to barrel body and is connected with coarse screen chamber, and the upper end of feeding through hole is connected with the feeding hopper.

[0007] Further, the coarse screen disc and fine screen disc are all obliquely arranged, and the grinding material axle is arranged through the coarse screen disc and fine screen disc.

[0008] Further, the abrasive device comprises two fixed plates and a rotating sleeve, the rotating sleeve is rotatably arranged on the abrasive shaft, the two fixed plates are arranged at the two ends of the rotating sleeve and are fixedly sleeved with the abrasive shaft; a plurality of abrasive large protrusions are uniformly arranged on the outer surface of the rotating sleeve; the top corners of the fixed plates are all rounded.

[0009] Further, the rotating sleeve is connected to the abrasive shaft by a plurality of springs.

[0010] Further, the inner surface of the barrel body is also uniformly provided with abrasive small protrusions, the abrasive small protrusions are in the shape of a right triangle, one of the right angle sides is the inner side of the barrel body, and the corner of the abrasive small protrusion which does not contact the side of the barrel body is rounded.

[0011] Further, the structure that the inclined upper end of the barrel body and the discharge box are rotatably connected with the feeding body and the inclined lower end of the barrel body respectively is that: the positions where the inclined upper end of the barrel body and the discharge box are connected with the feeding body and the inclined lower end of the barrel body respectively are provided with connecting ring pieces with T-shaped cross sections, the positions corresponding to the connecting ring pieces of the feeding body and the inclined lower end of the barrel body are respectively provided with T-shaped connecting ring grooves, and the inclined upper end of the barrel body and the discharge box are rotatably connected with the feeding body and the inclined lower end of the barrel body by being slidably arranged in the connecting ring grooves through the connecting ring pieces.

[0012] Further, a material blocking plate is fixedly sleeved with the rotating shaft at the position of the rotating shaft in the discharge box, and the material blocking plate is arranged on the inner side of the position where the rotating shaft penetrates the discharge box.

[0013] To achieve the above-mentioned purpose, the utility model also provides a ball mill device, and the innovation point thereof lies in that: the ball mill device comprises the ball mill barrel body structure, four supporting columns, two connecting rods, two supporting plates, a driving plate and a driving motor, the four supporting columns are arranged on the two sides of the inclined upper end and the lower end of the barrel body respectively, the two supporting columns arranged on the inclined upper end of the barrel body are connected with the two sides of the feeding body through the two connecting rods, the lower parts of the two supporting columns arranged on the inclined lower end of the barrel body extend to the sides away from the feeding body, the driving plate is arranged correspondingly to the lower end surface of the barrel body and is fixed on the two supporting plates, and the driving motor is arranged on the driving plate and is in transmission connection with the inclined lower end of the rotating shaft.

[0014] Further, the utility model also comprises a rotating supporting piece, the rotating supporting piece is arranged correspondingly to the lower part of the barrel body and is in contact with the upper surface and the side surface of the barrel body, and the barrel body can rotate in the rotating supporting piece; the rotating supporting piece is fixed on the four supporting columns.

[0015] Further, the rotating supporting piece extends a supporting blocking piece correspondingly to the position of the lower end surface of the barrel body, the supporting blocking piece is arranged on the lower part of the lower end surface of the barrel body and supports the lower part of the discharge box, and the overall cross section of the supporting blocking piece and the rotating supporting piece is in the shape of L.

[0016] Compared with the prior art, the ball mill barrel structure has the beneficial effects that:

[0017] The ball mill barrel structure of the utility model divides the barrel body into a coarse screening chamber, a middle screening chamber and a fine screening chamber through the coarse screening disc and the fine screening disc in the barrel body, and is respectively provided with a grinding device and three different grinding balls in the coarse screening chamber, the middle screening chamber and the fine screening chamber, and the grinding is classified and screened, and the metal particles of different particle sizes are subjected to different levels of ball milling, so that the particle size of the finally milled powder is uniform, and the setting of the grinding device can increase the contact probability of the metal particles or the powder in the barrel body and the grinding device and the grinding ball, thereby ensuring the powder milling quality.

[0018] The setting of the feeding body and the discharging box makes the feeding, grinding and discharging be able to be carried out in a flow line, and the feeding does not need to be interrupted, and the ball milling efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiments will be simply introduced below, and obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0020] Figure 1 It is a sectional view of the ball mill barrel structure of the utility model.

[0021] Figure 2 It is an enlarged view of A in the utility model. Figure 1

[0022] Figure 3 It is a front view of the ball mill device of the utility model.

[0023] Figure 4 It is a side view of the inclined upper end part of the barrel body in the ball mill device of the utility model.

[0024] Figure 5 It is a side view of the inclined lower end part of the barrel body in the ball mill device of the utility model.

[0025] Figure 6 It is a connection sectional view of the supporting blocking piece, the rotating supporting piece, the barrel body and the discharging box of the utility model.

[0026] ​The components are as follows: 1. Cylinder body; 2. Rotating shaft; 3. Feed body; 4. Abrasive shaft; 5. Discharge box; 6. Discharge ring; 7. Discharge port; 8. Abrasive device; 81. Fixed plate; 82. Rotating sleeve; 83. Large abrasive protrusion; 84. Spring; 9. Coarse screen plate; 10. Fine screen plate; 11. Coarse screen chamber; 12. Medium screen chamber; 13. Fine screen chamber; 14. Coarse grinding ball; 15. Medium grinding ball; 16. Fine grinding ball; 17. Feed inlet; 18. Feed hopper; 19. Small abrasive protrusion; 20. Connecting ring; 21. Connecting ring groove; 22. Support column; 23. Support plate; 24. Drive plate; 25. Drive motor; 26. Rotating support; 27. Support stop; 28. Connecting rod; 29. ​​Baffle plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] This embodiment provides a ball mill cylinder structure, including an inclined cylinder body 1 and a rotating shaft 2, as shown below. Figure 1 As shown, the upper inclined end of the cylinder 1 is open and rotatably connected to the feed body 3. The upper inclined end of the rotating shaft 2 is fixedly connected to the center of the lower inclined end face of the cylinder 1. An abrasive shaft 4 extending along the axis is provided inside the cylinder 1. The two ends of the abrasive shaft 4 are fixed to the feed body 3 and the lower inclined end face of the cylinder 1, respectively. A discharge box 5 is rotatably provided at the lower inclined end of the cylinder 1. A discharge ring 6 is provided on the lower inclined end face of the cylinder 1 to connect the discharge box 5 and the inside of the cylinder 1. A discharge port 7 is provided on the outer side of the lower end of the discharge box 5. The rotating shaft 2 rotatably passes through the discharge box 5. A coarse screen passes through the cylinder 1. The disc 9 and the fine sieve disc 10 are divided into a coarse sieve chamber 11, a medium sieve chamber 12 and a fine sieve chamber 13 from the inclined upper end to the lower end. The coarse sieve chamber 11, the medium sieve chamber 12 and the fine sieve chamber 13 are respectively provided with a number of coarse grinding balls 14, medium grinding balls 15 and fine grinding balls 16. The grinding shaft 4 is provided with grinding devices 8 at the parts located in the coarse sieve chamber 11, the medium sieve chamber 12 and the fine sieve chamber 13. The upper part of the feed body 3 is provided with a feed inlet 17. The lower part of the feed inlet 17 is inclined towards the cylinder body 1 and connected to the coarse sieve chamber 11. The upper end of the feed inlet 17 is connected to a feed hopper 18.

[0030] In this invention, the rotating shaft 2 rotatably penetrates the discharge box 5, meaning that the rotating shaft 2 passes through the discharge box 5 and can rotate within the discharge box 5. In this embodiment, the particle size of the coarse grinding balls 14, medium grinding balls 15, and fine grinding balls 16 gradually decreases.

[0031] In this specific application, the metal material enters the coarse screening chamber 11 of the cylinder 1 from the feed hopper 18 through the feed inlet 17. The rotating shaft 2 drives the cylinder 1 to rotate, which in turn drives the material and the grinding balls inside to rotate. Combined with the grinding shaft 4 and the grinding device 8 inside the cylinder 1, the material is subjected to rotating ball milling. The material in the grinding continuously passes through the coarse screening disc 9 and the fine screening disc 10, and is finally discharged through the discharge ring 6 and the discharge port 7 of the discharge box 5.

[0032] In this embodiment, the cylinder 1 is divided into a coarse sieve chamber 11, a medium sieve chamber 12, and a fine sieve chamber 13 by a coarse sieve disc 9 and a fine sieve disc 10. Abrasive devices 8 and three different types of grinding balls are respectively provided in the coarse sieve chamber 11, the medium sieve chamber 12, and the fine sieve chamber 13. The abrasive is used for grading and screening, and different levels of ball milling are performed on metal particles of different sizes to ensure that the final powder has a uniform particle size. The abrasive device 8 increases the probability of contact between metal particles or powder and the abrasive device 8 and grinding balls in the cylinder 1, thus ensuring the quality of grinding.

[0033] The arrangement of the feed body 3 and the discharge box 5 in this embodiment enables feeding, grinding and discharging to be carried out in an assembly line without the need for intermittent feeding, thereby improving ball mill efficiency.

[0034] Example 2

[0035] Based on the above embodiments, the abrasive device 8 of this embodiment includes two fixed plates 81 and a rotating sleeve 82. The rotating sleeve 82 is rotatably mounted on the abrasive shaft 4. The two fixed plates 81 are respectively located at both ends of the rotating sleeve 82 and are fixedly sleeved with the abrasive shaft 4. Several abrasive protrusions 83 are evenly provided on the outer surface of the rotating sleeve 82. The top corners of the fixed plates 81 are all rounded.

[0036] In this embodiment, both the coarse screen disk 9 and the fine screen disk 10 are inclined, and the abrasive shaft 4 is disposed through the coarse screen disk 9 and the fine screen disk 10.

[0037] In this embodiment, the abrasive device 8 is configured so that during the rotation of the cylinder 1, the grinding balls impact the material onto the rotating sleeve 82 and the abrasive protrusion 83 on the rotating sleeve 82, thereby increasing the probability of the material being ground by impact and improving grinding efficiency and quality.

[0038] Example 3

[0039] Based on the above embodiments, in order to improve the stability of the device, the rotating sleeve 82 in this embodiment is evenly connected to the abrasive shaft 4 by several springs 84.

[0040] In this embodiment, in addition to improving grinding efficiency and quality, the spring 84 can buffer the impact of grinding balls and materials on the rotating sleeve 82, preventing the impact force from being transmitted to the grinding shaft 4 and causing damage, thus improving the stability of the device.

[0041] Example 4

[0042] Based on the above embodiments, in order to further improve the grinding force of materials, the inner surface of the cylinder body 1 in this embodiment is also uniformly provided with abrasive protrusions 19. The abrasive protrusions 19 are in the shape of right angle triangles, and one of the right angle sides is the inner side of the cylinder body 1. The corners of the abrasive protrusions 19 that do not contact the side of the cylinder body 1 are rounded.

[0043] In this embodiment, the abrasive protrusion 19, based on the abrasive protrusion 83, allows the material to rotate to a higher height with the cylinder 1, resulting in a greater impact force after being thrown, and further improving the grinding force on the material.

[0044] Example 5

[0045] Based on the above embodiments, the structure in this embodiment where the inclined upper end of the cylinder body 1, the discharge box 5, and the feed body 3 and the inclined lower end of the cylinder body 1 are rotatably connected is as follows: Figure 2 As shown, the inclined upper end of the cylinder body 1 and the discharge box 5 are respectively connected to the feed body 3 and the inclined lower end of the cylinder body 1. A T-shaped connecting ring 20 is provided at the part of the feed body 3 and the part of the inclined lower end of the cylinder body 1 corresponding to the connecting ring 20. A T-shaped connecting ring groove 21 is provided at the part of the feed body 3 and the inclined lower end of the cylinder body 1 corresponding to the connecting ring 20. The inclined upper end of the cylinder body 1 and the discharge box 5 are slidably disposed in the connecting ring groove 21 and rotatably connected to the feed body 3 and the inclined lower end of the cylinder body 1 through the connecting ring 20.

[0046] In this embodiment, the rotating structure ensures that the rotation of the cylinder 1 does not affect the discharge box 5 and the feed body 3, and the device structure is stable.

[0047] Example 6

[0048] Based on the above embodiments, in order to avoid material waste, a baffle plate 29 is also fixedly sleeved on the part of the rotating shaft 2 located inside the discharge box 5. The baffle plate 29 is positioned to fit against the inner side of the discharge box 5 where the rotating shaft 2 passes through.

[0049] The baffle plate 29 in this embodiment can prevent material from entering the part where the rotating shaft 2 and the discharge box 5 are connected, thus avoiding waste and preventing the rotation of the rotating shaft 2 from being affected.

[0050] Example 7

[0051] Based on the above embodiments, this embodiment further provides a ball milling device in addition to embodiment 6, such as... Figures 3-6As shown, the structure includes a ball mill cylinder and four support pillars 22. The four support pillars 22 are respectively located on the upper and lower sides of the inclined cylinder body 1. The two support pillars 22 located on the upper inclined cylinder body 1 are connected to the two sides of the feed body 3 through two connecting rods 28. The lower parts of the two support pillars 22 located on the lower inclined cylinder body 1 extend into two support plates 23 on the side away from the feed body 3. The structure also includes a drive plate 24 and a drive motor 25. The drive plate 24 is inclined to the lower end face of the cylinder body 1 and is fixed on the two support plates 23. The drive motor 25 is located on the drive plate 24 and is connected to the lower inclined end of the rotating shaft 2.

[0052] This embodiment includes a ball milling device with a ball milling body structure. It is supported by the cooperation of support column 22, support plate 23 and drive plate 24, etc. The drive motor 25 drives the rotating shaft 2 to rotate, which in turn drives the cylinder body 1 to rotate for ball milling. In actual use, the drive motor 25 can also be connected to a reduction motor and then connected to the rotating shaft 2 as needed.

[0053] Example 8

[0054] Based on the above embodiments, in order to ensure the rotational stability of the cylinder, the ball mill device of this embodiment also includes a rotating support 26. The rotating support 26 is fitted to the lower part of the cylinder 1, and the upper surface in contact with the cylinder 1 is adapted to the side of the cylinder 1. The cylinder 1 can rotate within the rotating support 26. The rotating support 26 is fixed on four pillars 22.

[0055] In this embodiment, the rotating support 26 supports the cylinder 1 during rotation, thereby improving the stability of the device.

[0056] Example 9

[0057] Based on the above embodiments, in order to support the cylinder body and the discharge box at the same time, the rotating support 26 of this embodiment extends a support stop 27 to the part corresponding to the inclined lower end face of the cylinder body 1. The support stop 27 is located at the lower part of the inclined lower end face of the cylinder body 1 and is supported below the discharge box 5. The overall cross-section of the support stop 27 and the rotating support 26 is L-shaped.

[0058] In this embodiment, the support baffle supports the cylinder 1 from the inclined lower end face based on the rotating support 26, and at the same time, the support baffle also supports the discharge box 5.

[0059] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, all modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been fully described in the technical requirements.

Claims

1. A ball mill cylinder structure, characterized in that: The device includes an inclined cylindrical body and a rotating shaft. The inclined upper end of the cylindrical body is open and rotatably connected to a feed body. The inclined upper end of the rotating shaft is fixedly connected to the center of the inclined lower end face of the cylindrical body. An abrasive shaft extending along the axis is provided inside the cylindrical body, with both ends fixed to the feed body and the inclined lower end face of the cylindrical body, respectively. A discharge box is rotatably mounted at the inclined lower end of the cylindrical body. A discharge ring is provided on the inclined lower end face of the cylindrical body, connecting the discharge box and the interior of the cylindrical body. A discharge port is provided on the lower outer side of the discharge box. The rotating shaft rotates... The cylinder is equipped with a through-feed box; the cylinder body is divided into a coarse screening chamber, a medium screening chamber, and a fine screening chamber from the inclined upper end to the lower end by a coarse screening disc and a fine screening disc. Each of the coarse screening chamber, medium screening chamber, and fine screening chamber is equipped with a number of coarse grinding balls, medium grinding balls, and fine grinding balls. The grinding shaft is equipped with grinding devices at the positions of the coarse screening chamber, medium screening chamber, and fine screening chamber. The upper part of the feed body is equipped with a feed inlet, the lower part of the feed inlet is inclined towards the cylinder body and connects to the coarse screening chamber, and the upper end of the feed inlet is connected to a feed hopper.

2. The ball mill cylinder structure according to claim 1, characterized in that: Both the coarse and fine screens are inclined, and the abrasive shaft passes through both the coarse and fine screens.

3. The ball mill cylinder structure according to claim 2, characterized in that: The abrasive device includes two fixed plates and a rotating sleeve. The rotating sleeve is rotatably mounted on the abrasive shaft. The two fixed plates are respectively located at both ends of the rotating sleeve and are fixedly sleeved with the abrasive shaft. Several large abrasive protrusions are evenly distributed on the outer surface of the rotating sleeve. The top corners of the fixed plates are all rounded.

4. The ball mill cylinder structure according to claim 3, characterized in that: The rotating sleeve is evenly connected to the abrasive shaft by several springs inside.

5. The ball mill cylinder structure according to claim 4, characterized in that: The inner surface of the cylinder is also uniformly provided with abrasive protrusions. The abrasive protrusions are in the shape of right-angled triangles, with one right-angled side being the inner side of the cylinder. The corners of the abrasive protrusions that do not contact the side of the cylinder are rounded.

6. The ball mill cylinder structure according to claim 5, characterized in that: The structure in which the inclined upper end of the cylinder body, the discharge box, and the feed body and the inclined lower end of the cylinder body are rotatably connected is as follows: the inclined upper end of the cylinder body and the discharge box are respectively provided with T-shaped connecting rings at the parts that connect to the feed body and the inclined lower end of the cylinder body. The feed body and the inclined lower end of the cylinder body are respectively provided with T-shaped connecting ring grooves at the parts corresponding to the connecting rings. The inclined upper end of the cylinder body and the discharge box are respectively slidably disposed in the connecting ring grooves and rotatably connected to the feed body and the inclined lower end of the cylinder body through the connecting rings.

7. The ball mill cylinder structure according to claim 6, characterized in that: A baffle plate is also fixedly sleeved on the part of the rotating shaft located inside the discharge box. The baffle plate is positioned to fit against the inner side of the discharge box where the rotating shaft passes through.

8. A ball milling apparatus, characterized in that: The ball mill cylinder structure as described in claim 7 includes four support pillars, which are respectively located on the upper and lower sides of the inclined cylinder body. The two support pillars located on the upper inclined cylinder body are respectively connected to the two sides of the feed body via two connecting rods. The lower parts of the two support pillars located on the lower inclined cylinder body extend into two support plates away from the feed body. The structure also includes a drive plate and a drive motor. The drive plate is inclined to the lower end face of the cylinder body and fixed to the two support plates. The drive motor is located on the drive plate and is connected to the lower inclined end of the rotating shaft.

9. The ball milling apparatus according to claim 8, characterized in that: It also includes a rotating support, which is fitted to the bottom of the cylinder and its upper surface in contact with the cylinder is adapted to the side of the cylinder, allowing the cylinder to rotate within the rotating support; the rotating support is fixed to four pillars.

10. The ball milling apparatus according to claim 9, characterized in that: The rotating support extends a support stop at the lower part of the inclined lower end face of the cylinder. The support stop is located at the lower part of the inclined lower end face of the cylinder and is supported below the discharge box. The overall cross-section of the support stop and the rotating support is L-shaped.

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