Anode material screening device

Abstract

The utility model discloses a kind of negative electrode material screening devices, it is related to negative electrode material screening technical field, including bottom plate, the upper surface of the bottom plate is fixedly installed with support frame one and support frame two, support frame one and support frame two between are placed with screening cylinder, the bottom of the screening cylinder is fixedly installed with screen. The negative electrode material screening device, by being provided with servo motor two, the reciprocating rotary swing of screening cylinder can be driven by the operation of servo motor, swing screening is carried out to internal negative electrode material, the flowability of internal negative electrode material can be increased by swinging mode, to better improve the effect of screening, by being provided with servo motor one, screening cylinder can be driven to rotate one hundred and eighty degrees, to better guide the negative electrode material screened and retained downward, so that the clearance of screening discharging better removes screened and retained material, improves the screening and the effect of discharging retained material of the device.

Description

Technical Field

[0001] This utility model relates to the field of negative electrode material screening technology, specifically a negative electrode material screening device. Background Technology

[0002] In the production process of lithium-ion batteries, the particle size distribution of the negative electrode material (such as graphite, silicon-carbon composite materials, etc.) has a crucial impact on the electrochemical performance of the battery (such as capacity, cycle life, and safety). Therefore, the negative electrode material needs to be precisely screened in the production process. Vibrating screens are usually used for screening negative electrode materials. However, it is difficult to remove the remaining material after screening, resulting in low material removal efficiency. Failure to remove the remaining material in time can easily cause screen blockage, affecting the screening effect of the negative electrode material. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a negative electrode material screening device, which has the advantages of good screening and discharge of retained materials.

[0005] (II) Technical Solution

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a negative electrode material screening device, including a base plate, on the upper surface of the base plate a first support frame and a second support frame are fixedly installed, a screening cylinder is placed between the first support frame and the second support frame, a screen is fixedly installed at the bottom of the screening cylinder, side cylinder plates are fixedly installed at both ends of the screening cylinder by bolts, a fixed cylinder is fixedly connected to the outer side of each side cylinder plate, a toothed groove is opened on the outer side of each fixed cylinder, a bearing is embedded at the top of the first support frame and the second support frame, and the ends of the two fixed cylinders that are far apart from each other extend to the inner ring of the first bearing, and the outer surface of the fixed cylinder is fixedly connected to the inner ring of the first bearing.

[0007] A fixing frame is fixedly mounted on the outer side of the support frame one by bolts. A bearing two is fixedly embedded inside the fixing frame one. A toothed ring one is fixedly connected to the inner ring of the bearing two. A transmission groove is opened on the outer surface of the toothed ring one. A fixing hole is opened on the left side of the support frame one. A servo motor one is fixedly mounted inside the fixing hole. A transmission wheel is fixedly mounted on the output end of the servo motor one, and the transmission wheel is connected to the transmission groove through a transmission belt. A mounting bracket is fixedly mounted on the outer side of the fixing frame one by bolts. An electric push rod is fixedly mounted on the bottom end of the mounting bracket. A shaft seat is fixedly mounted on the output end of the electric push rod by bolts.

[0008] The top of the support frame two is fixedly mounted with a fixing frame two by bolts. The fixing frame two has a bearing three embedded inside. The inner ring of the bearing three is fixedly mounted with a toothed ring two. The screening cylinder has a connecting column inside, and both ends of the connecting column are fixedly mounted with toothed rings. The outer surface of the left end of the connecting column is fixedly connected to the inner ring of the shaft seat. The side of the support frame two is fixedly mounted with bolts to a motor frame. The upper surface of the motor frame is fixedly mounted with a servo motor two. The output end of the servo motor two is fixedly mounted with a turntable. The inner side of the turntable is rotatably connected to a connecting rod through a rotating shaft. The lower part of the outer surface of the toothed ring two is fixedly mounted with a connecting ear, and the bottom end of the connecting ear is rotatably connected to the end of the connecting rod away from the turntable through a rotating shaft.

[0009] Furthermore, the toothed ring is adapted to the toothed groove, toothed ring one and toothed ring two, and the length between the two toothed rings on one side closer to each other is greater than the length between the toothed ring one and toothed ring two on one side farther away from each other.

[0010] By adopting the above technical solution, the position of the two retaining rings can be better adjusted by the electric push rod, and the drive units on both sides can be operated independently, avoiding interference between the two sides when one side is running.

[0011] Furthermore, a material inlet is provided at the top of the screening cylinder.

[0012] By adopting the above technical solution, the material to be screened can be introduced into the inside of the screening cylinder through the material inlet for screening, and discharged from the material inlet by adjustment when the material is stored.

[0013] Furthermore, the connection between the turntable and the connecting rod is at an eccentric position.

[0014] By adopting the above technical solution, the rotational motion of the turntable can be better transformed into the reciprocating oscillating motion of the toothed ring II.

[0015] Furthermore, the input terminals of both servo motor one and servo motor two are electrically connected to the main control board via motor controllers, and the input terminal of the electric push rod is electrically connected to the main control board via a push rod controller.

[0016] By adopting the above technical solution, the start / stop, running direction, running speed, running time, and interval time of servo motor one and servo motor two can be controlled and adjusted through the main control board and controller.

[0017] (III) Beneficial Effects

[0018] Compared with existing technologies, this negative electrode material screening device has the following advantages:

[0019] 1. This utility model, by providing an electric push rod, can adjust the position of the two retaining rings. When retracting, the left retaining ring disengages from the left retaining groove and the inside of the first retaining ring. At this time, the right retaining ring is inserted into the second retaining ring and the right retaining groove in sequence, so that the second retaining ring and the right fixing cylinder are connected. Conversely, the first retaining ring is connected to the left fixing cylinder. Thus, by adjusting the electric push rod, the left and right drive units can be driven independently, avoiding the problem of interference between the drive units on one side and the drive unit on the other side.

[0020] 2. This utility model is equipped with a second servo motor, which drives the screening cylinder to reciprocate and oscillate, oscillating and screening the negative electrode material inside. The oscillation increases the fluidity of the negative electrode material, thereby improving the screening effect. The first servo motor drives the screening cylinder to rotate 180 degrees, thus better discharging the negative electrode material left after screening downwards. Therefore, the material left after screening is better removed during the screening and feeding interval, improving the screening and material discharge efficiency of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the screening cylinder structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the side tube plate structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the toothed ring structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the external structure of the fixing frame of this utility model;

[0026] Figure 6 This is an exploded view showing the connection between the fixing frame and the toothed ring of this utility model.

[0027] Figure 7 This is a schematic diagram of the external structure of the fixing frame 2 of this utility model;

[0028] Figure 8 This is a schematic diagram of the connecting ear structure of this utility model.

[0029] In the diagram: 1-Base plate, 2-Support frame one, 3-Support frame two, 4-Motor frame, 5-Servo motor two, 6-Turntable, 7-Side cylinder plate, 8-Material inlet, 9-Fixed frame one, 10-Screening cylinder, 11-Screen, 12-Fixed cylinder, 13-Bearing one, 14-Fixed hole, 15-Clamping tooth groove, 16-Connecting ear, 17-Clamping tooth ring, 18-Connecting column, 19-Mounting frame, 20-Electric push rod, 21-Transmission belt, 22-Transmission wheel, 23-Servo motor one, 24-Bearing two, 25-Shaft seat, 26-Groogging ring one, 27-Transmission groove, 28-Connecting rod, 29-Bearing three, 30-Fixed frame two, 31-Groogging ring two. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1-8 This utility model provides a technical solution: a negative electrode material screening device, including a base plate 1, a support frame 2 and a support frame 3 fixedly installed on the upper surface of the base plate 1, a screening cylinder 10 placed between the support frame 2 and the support frame 3, a material inlet 8 opened at the top of the screening cylinder 10, which can guide the material to be screened into the interior of the screening cylinder 10 for screening, and discharge the material from the material inlet 8 by adjustment when storing the material, and a screen 11 fixedly installed at the bottom of the screening cylinder 10.

[0032] Both ends of the screening cylinder 10 are fixedly installed with side cylinder plates 7 by bolts. Each side cylinder plate 7 has a fixed cylinder 12 fixedly connected to its outer side. Each fixed cylinder 12 has a toothed groove 15 on its outer side. The top of the support frame 1 2 and the support frame 2 3 are both inlaid with bearings 13. The ends of the two fixed cylinders 12 that are far apart from each other extend to the inner ring of the bearings 13. The outer surface of the fixed cylinder 12 is fixedly connected to the inner ring of the bearings 13.

[0033] A fixing frame 9 is fixedly installed on the outer side of the support frame 2 by bolts. A bearing 24 is fixedly embedded inside the fixing frame 9. A toothed ring 26 is fixedly connected to the inner ring of the bearing 24. A transmission groove 27 is opened on the outer surface of the toothed ring 26. A fixing hole 14 is opened on the left side of the support frame 2. A servo motor 23 is fixedly installed inside the fixing hole 14. A transmission wheel 22 is fixedly installed at the output end of the servo motor 23. The transmission wheel 22 is connected to the transmission groove 27 through a transmission belt 21. A mounting frame 19 is fixedly installed on the outer side of the fixing frame 9 by bolts. An electric push rod 20 is fixedly installed at the bottom end of the mounting frame 19. A bearing seat 25 is fixedly installed at the output end of the electric push rod 20 by bolts.

[0034] The top of the support frame 2 3 is fixedly installed with a fixing frame 2 30 by bolts. The fixing frame 2 30 is inlaid with a bearing 3 29. The inner ring of the bearing 3 29 is fixedly installed with a toothed ring 2 31. The screening cylinder 10 is placed inside a connecting column 18, and both the left and right ends of the connecting column 18 are fixedly installed with toothed rings 17. The outer surface of the left end of the connecting column 18 is fixedly connected to the inner ring of the shaft seat 25.

[0035] A motor frame 4 is bolted to the side of the support frame 2 3. A servo motor 2 5 is fixedly mounted on the upper surface of the motor frame 4. The input ends of both the servo motor 1 23 and the servo motor 2 5 are electrically connected to the main control board through a motor controller. The input end of the electric push rod 20 is electrically connected to the main control board through a push rod controller. The main control board and the controller can control and adjust the start / stop, rotation direction, rotation speed, rotation time, and interval time of the servo motor 1 23 and the servo motor 2 5. A turntable 6 is fixedly mounted on the output end of the servo motor 2 5. A connecting rod 28 is rotatably connected to the inner side of the turntable 6 through a rotating shaft. The connection between the turntable 6 and the connecting rod 28 is at an eccentric position, which better transforms the rotational motion of the turntable 6 into the reciprocating swing motion of the toothed ring 2 31. A connecting ear 16 is fixedly mounted on the lower outer surface of the toothed ring 2 31, and the bottom end of the connecting ear 16 is rotatably connected to the end of the connecting rod 28 away from the turntable 6 through a rotating shaft.

[0036] The toothed ring 17 is adapted to the toothed groove 15, the toothed ring 26 and the toothed ring 31. The length between the two toothed rings 17 on one side is greater than the length between the toothed ring 26 and the toothed ring 31 on the other side. This allows for better adjustment of the position of the two toothed rings 17 by the electric push rod 20, enabling independent operation of the drive units on both sides and avoiding interference between the two sides when one side is in operation.

[0037] Working principle: During use, the negative electrode material to be screened is poured into the screening cylinder 10 through the feed port 8. At this time, the retraction of the telescopic end of the electric push rod 20 pulls the left toothed ring 17 out of the left toothed groove 15 and the toothed ring 26, separating the toothed ring 26 from the left fixed cylinder 12. Then, the right toothed ring 17 is inserted into the toothed ring 31 and the right toothed groove 15, connecting the toothed ring 31 to the right fixed cylinder 12. At this time, the operation of the servo motor 5 drives the turntable 6 to rotate, which in turn drives the toothed ring 31 to reciprocate through the connecting rod 28. The right fixed cylinder 12 drives the screening cylinder to rotate. The screening drum 10 reciprocates and oscillates, and the negative electrode material inside is oscillated and screened through the screen 11. The screened material is received by a material box placed below the screening drum 10. When the material remaining in the screening drum 10 is discharged, the waste box is placed below the screening drum 10. By extending the telescopic end of the electric push rod 20, the toothed ring 26 is connected to the fixed cylinder 12 on the left, and the toothed ring 31 on the right is separated from the fixed cylinder 12 on the right. At this time, the servo motor 23 drives the toothed ring 26 to rotate 180 degrees, thereby rotating the material outlet 8 to face downwards and discharging the screened material, thus improving the screening and discharge effect of the device.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A negative material screening device comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is fixedly installed with support frame one (2) and support frame two (3). A screening cylinder (10) is placed between support frame one (2) and support frame two (3). A screen (11) is fixedly installed at the bottom of the screening cylinder (10). Side cylinder plates (7) are fixedly installed at both ends of the screening cylinder (10) by bolts. A fixed cylinder (12) is fixedly connected to the outer side of each side cylinder plate (7). A toothed groove (15) is opened on the outer side of each fixed cylinder (12). A bearing one (13) is embedded at the top of support frame one (2) and support frame two (3). The ends of the two fixed cylinders (12) that are far apart from each other extend to the inner ring of bearing one (13). The outer surface of the fixed cylinder (12) is fixedly connected to the inner ring of bearing one (13). The outer side of the support frame 1 (2) is fixedly mounted with a fixing frame 1 (9) by bolts. The inside of the fixing frame 1 (9) is fixedly embedded with a bearing 2 (24). The inner ring of the bearing 2 (24) is fixedly connected with a toothed ring 1 (26). The outer surface of the toothed ring 1 (26) is provided with a transmission groove (27). The left side of the support frame 1 (2) is provided with a fixing hole (14). The inside of the fixing hole (14) is fixedly mounted with a servo motor 1 (23). The output end of the servo motor 1 (23) is fixedly mounted with a transmission wheel (22). The transmission wheel (22) is connected to the transmission groove (27) through a transmission belt (21). The outer side of the fixing frame 1 (9) is fixedly mounted with a mounting frame (19) by bolts. The bottom end of the mounting frame (19) is fixedly mounted with an electric push rod (20). The output end of the electric push rod (20) is fixedly mounted with a bearing seat (25) by bolts. The top of the support frame two (3) is fixedly mounted with a fixing frame two (30) by bolts. The fixing frame two (30) is inlaid with a bearing three (29). The inner ring of the bearing three (29) is fixedly mounted with a toothed ring two (31). The screening cylinder (10) is filled with a connecting column (18), and both ends of the connecting column (18) are fixedly mounted with toothed rings (17). The outer surface of the left end of the connecting column (18) is fixedly connected to the inner ring of the bearing seat (25). The support frame two ( 3) A motor frame (4) is fixedly installed on the side by bolts. A servo motor (5) is fixedly installed on the upper surface of the motor frame (4). A turntable (6) is fixedly installed at the output end of the servo motor (5). A connecting rod (28) is rotatably connected to the inner side of the turntable (6) through a rotating shaft. A connecting ear (16) is fixedly installed below the outer surface of the toothed ring (31). The bottom end of the connecting ear (16) is rotatably connected to the end of the connecting rod (28) away from the turntable (6) through a rotating shaft.

2. The negative material screening device of claim 1, wherein: The toothed ring (17) is adapted to the toothed groove (15), toothed ring one (26) and toothed ring two (31), and the length between the two toothed rings (17) that are close to each other is greater than the length between the toothed ring one (26) and toothed ring two (31) that are far apart from each other.

3. The negative material screening device of claim 1, wherein: The top of the screening cylinder (10) is provided with a material inlet (8).

4. The negative material screening device of claim 1, wherein: The connection between the turntable (6) and the connecting rod (28) is at an eccentric position.

5. The negative material screening device of claim 1, wherein: The input terminals of the first servo motor (23) and the second servo motor (5) are electrically connected to the main control board through the motor controller, and the input terminal of the electric push rod (20) is electrically connected to the main control board through the push rod controller.

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