Graphite crushing device for lithium battery production

Abstract

The utility model discloses a graphite crushing device for lithium battery production, which belongs to the technical field of graphite crushing and comprises a Raymond mill, an air inlet pipe is mounted on the lower portion of the Raymond mill, a fan pipe is mounted on the air inlet pipe, mounting plates are mounted on the air inlet pipe and the fan pipe respectively, and the two mounting plates are connected through bolts. A guide rail is installed at the upper end of the air inlet pipe and composed of a guide rod and two base plates, the two base plates are symmetrically installed at the two ends of the guide rod, by arranging the guide rail, a limiting structure and an anti-loosening structure, the probability that bolts rotate and loosen after being vibrated for a long time can be reduced, and then the probability that connection between the air inlet pipe and the fan pipe is loosened is reduced; and finally, the probability of air leakage at the joint of the air inlet pipe and the fan pipe is reduced, so that the discharging efficiency of graphite meeting the fineness requirement is not easy to reduce, the air inlet pipe and the fan pipe are conveniently connected through bolts, cooperative operation of multiple persons is not needed, and manpower waste can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite crushing, in particular to a graphite crushing device used for lithium battery production. Background Art

[0002] Graphite is one of the raw materials of lithium batteries. When producing lithium batteries, Raymond mill is needed to crush graphite. When Raymond mill crushes graphite, first feed the graphite into the Raymond mill through the feed port. The graphite entering the grinding chamber is ground between the grinding roller and the grinding ring. The ground powder is carried to the analyzer for classification by the airflow of the fan. The fine powder that meets the fineness requirements flows through the pipeline into the large cyclone collector for separation and collection, and then discharged through the discharger as the finished product. When in use, the main Raymond mill will be fixed with the fan by bolts. However, the traditional Raymond mill will produce certain vibrations during use. After working for a long time, the bolts used to connect the Raymond mill and the fan are easily loosened due to long-term vibration, which will cause the connection between the Raymond mill and the fan to loosen, and then the connection between the Raymond mill and the fan will easily leak air, which will eventually affect the unloading efficiency of the graphite that meets the fineness requirements.

[0003] The existing patent application with application number CN202321395103.3 proposes a new type of Raymond mill. Although it can reduce the probability of rotation and loosening of the bolt structure after long-term vibration by setting a limiting structure and an anti-rotation structure, and thus reduce the probability of loose connection between the air inlet duct and the fan duct, and finally reduce the probability of air leakage at the connection between the air inlet duct and the fan duct, so that the unloading efficiency of the material that meets the fineness requirement is not easily reduced, it is inconvenient to use. When using bolts to connect the air inlet duct and the fan duct, it is necessary to continuously push the anti-rotation structure toward the limiting structure until the bolts are installed. The anti-rotation structure can be loosened, which will bring inconvenience to the installation of the bolts, and it requires the cooperation of multiple people to use bolts to connect the air inlet duct and the fan duct, thus causing waste of manpower, so it needs to be improved. Utility Model Content

[0004] The main purpose of the utility model is to provide a graphite crushing device for lithium battery production, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A graphite pulverizing device for lithium battery production comprises a Raymond mill, an air inlet pipe is installed at the lower part of the Raymond mill, a fan pipe is installed on the air inlet pipe, a mounting plate is installed on each of the air inlet pipe and the fan pipe, the two mounting plates are connected by bolts, a guide rail is installed at the upper end of the air inlet pipe, the guide rail is composed of a guide rod and a base plate, the base plate has two and is symmetrically installed at both ends of the guide rod, a limiting structure is slidably installed on the guide rod, the limiting structure is composed of a slider, a mounting rod, a spring and an anti-slip plate, the mounting rod has two and is symmetrically installed at both ends of the slider, the spring has two and is respectively It is sleeved on two mounting rods, and there are two anti-slip plates which are respectively mounted on the outer ends of the two mounting rods. An anti-loosening structure is slidably installed on the mounting rod and on the inner side of the spring. The anti-loosening structure consists of a connecting plate, a U-shaped block, a connecting arm and a push plate. There are two U-shaped blocks which are symmetrically installed at the upper and lower ends of the connecting plate, the connecting arm is installed at one end of the connecting plate, and the push plate is installed at the upper end of the connecting arm. The U-shaped block is clamped on the two mounting plates, and two clamping grooves are symmetrically provided at the inner end of the U-shaped block. The U-shaped block is clamped on the bolts used to connect the two mounting plates through the clamping grooves.

[0007] Preferably, a feed port is installed on the outer wall of the Raymond mill, and a discharge port is installed on the upper part of the Raymond mill.

[0008] Preferably, the guide rod on the guide rail is fixedly connected to the base plate, and the base plate is also fixedly mounted on the upper end of the air inlet duct.

[0009] Preferably, the mounting rod on the limiting structure is fixedly connected to the slider and the anti-drop plate, and a mounting hole is provided on the slider, through which the slider is slidably mounted on the guide rod.

[0010] Preferably, the connecting plate on the anti-loosening structure is fixedly connected to the U-shaped block and the connecting arm, and the push plate is fixedly connected to the connecting arm.

[0011] Preferably, a through hole is formed on the connecting arm, and the connecting arm is mounted on the mounting rod through the through hole.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By providing guide rails, limit structures and anti-loosening structures, the probability of the bolts rotating and loosening after being vibrated for a long time can be reduced, thereby reducing the probability of loosening of the connection between the air inlet pipe and the fan pipe, and ultimately reducing the probability of air leakage at the connection between the air inlet pipe and the fan pipe, so that the unloading efficiency of the graphite that meets the fineness requirements is not easily reduced, and it is more convenient to connect the air inlet pipe and the fan pipe with bolts, which does not require the coordinated operation of multiple people and can reduce the waste of manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A magnified view of point A;

[0016] Figure 3 It is a structural schematic diagram of the guide rail and the limiting structure of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the anti-loosening structure of the utility model.

[0018] In the figure: 1. Raymond grinder; 2. Air inlet pipe; 3. Fan pipe; 4. Mounting plate; 5. Guide rail; 6. Limiting structure; 7. Anti-loosening structure; 8. Feed inlet; 9. Discharge outlet; 10. Guide rod; 11. Base plate; 12. Slider; 13. Mounting rod; 14. Spring; 15. Anti-slip plate; 16. Mounting hole; 17. Connecting plate; 18. U-shaped block; 19. Slot; 20. Connecting arm; 21. Through hole; 22. Push plate. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a graphite pulverizing device for lithium battery production includes a Raymond mill 1, an air inlet pipe 2 is installed at the lower part of the Raymond mill 1, a fan pipe 3 is installed on the air inlet pipe 2, a mounting plate 4 is installed on the air inlet pipe 2 and the fan pipe 3, and the two mounting plates 4 are connected by bolts. A feed port 8 is installed on the outer wall of the Raymond mill 1, and a discharge port 9 is installed on the upper part of the Raymond mill 1. When the graphite is pulverized, the graphite can be fed into the Raymond mill 1 through the feed port 8 for pulverization, and then the airflow generated by the fan will enter the Raymond mill 1 through the fan pipe 3 and the air inlet pipe 2. At this time, the pulverized graphite will be blown out from the discharge port 9 by the airflow, and then enter the cyclone collector connected to the discharge port 9.

[0021] See also Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a guide rail 5 is installed at the upper end of the air inlet pipe 2, and the guide rail 5 is composed of a guide rod 10 and a base plate 11. There are two base plates 11 and they are symmetrically installed at both ends of the guide rod 10. The guide rod 10 and the base plate 11 on the guide rail 5 are fixedly connected. The base plate 11 is also fixedly installed at the upper end of the air inlet pipe 2. A limiting structure 6 is slidably installed on the guide rod 10. The limiting structure 6 is composed of a slider 12, a mounting rod 13, a spring 14 and an anti-slip plate 15. There are two mounting rods 13 and they are symmetrically installed at both ends of the slider 12. There are two springs 14 and they are respectively sleeved on the two ends. There are two anti-drop plates 15 on the two mounting rods 13, which are respectively mounted on the outer ends of the two mounting rods 13. The mounting rod 13 on the limiting structure 6 is fixedly connected to the slider 12 and the anti-drop plate 15. The slider 12 is provided with a mounting hole 16, and the slider 12 is slidably mounted on the guide rod 10 through the mounting hole 16. An anti-loosening structure 7 is slidably mounted on the mounting rod 13 and on the inner side of the spring 14. The anti-loosening structure 7 is composed of a connecting plate 17, a U-shaped block 18, a connecting arm 20 and a push plate 22. There are two U-shaped blocks 18 and they are symmetrically mounted on the connecting arm 20. The upper and lower ends of the plate 17, the connecting arm 20 is installed at one end of the connecting plate 17, the push plate 22 is installed at the upper end of the connecting arm 20, the U-shaped block 18 is clamped on the two mounting plates 4, the inner end of the U-shaped block 18 is symmetrically provided with two card slots 19, the U-shaped block 18 is clamped on the bolt used to connect the two mounting plates 4 through the card slot 19, the connecting plate 17 on the anti-loosening structure 7 is fixedly connected with the U-shaped block 18 and the connecting arm 20, the push plate 22 is fixedly connected with the connecting arm 20, the connecting arm 20 is provided with a through hole 21, and the connecting arm 2 0 is installed on the mounting rod 13 through the through hole 21. By arranging the guide rail 5, the limiting structure 6 and the anti-loosening structure 7, the probability of the bolt rotating and loosening after being vibrated for a long time can be reduced, thereby reducing the probability of the connection between the air inlet pipe 2 and the fan pipe 3 being loose, and finally reducing the probability of air leakage at the connection between the air inlet pipe 2 and the fan pipe 3, so that the unloading efficiency of the graphite that meets the fineness requirement is not easily reduced, and it is more convenient to connect the air inlet pipe 2 and the fan pipe 3 with bolts, and it does not require the coordinated operation of multiple people, which can reduce the waste of manpower.

[0022] It should be noted that the utility model is a graphite crushing device for lithium battery production. When the mounting plate 4 on the air inlet pipe 2 is connected with the mounting plate 4 on the fan pipe 3 by bolts, the anti-loosening structure 7 can be pulled first, so that the connecting arm 20 compresses the spring 14. When the U-shaped block 18 is out of contact with the mounting plate 4 on the air inlet pipe 2, the limiting structure 6 is pushed on the guide rod 10, so that the anti-loosening structure 7 is away from the mounting plate 4 on the air inlet pipe 2. Then, the mounting plate 4 on the fan pipe 3 can be brought into contact with the mounting plate 4 on the air inlet pipe 2, and finally, the bolts can be installed on the two mounting plates 4. At this time, the connection between the air inlet pipe 2 and the fan pipe 3 is completed; In order to reduce the probability of the bolts rotating and loosening after being vibrated for a long time, reduce the probability of the connection between the air inlet duct 2 and the fan duct 3 being loose, and reduce the probability of air leakage at the connection between the air inlet duct 2 and the fan duct 3, an anti-loosening structure 7 can be used to limit the bolts. The method is to first move the anti-loosening structure 7 on the mounting rod 13 so that the connecting arm 20 compresses the spring 14, and then push the limiting structure 6 on the guide rod 10, so that the anti-loosening structure 7 is close to the mounting plate 4, and finally the anti-loosening structure 7 is loosened. At this time, under the elastic force of the spring 14, the U-shaped block 18 is clamped on the head of the bolt and the nut through the clamping groove 19, and the bolt is limited.

[0023] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A graphite pulverizing device for lithium battery production, comprising a Raymond mill (1), an air inlet pipe (2) is installed at the lower part of the Raymond mill (1), a fan pipe (3) is installed on the air inlet pipe (2), a mounting plate (4) is installed on each of the air inlet pipe (2) and the fan pipe (3), and the two mounting plates (4) are connected by bolts, characterized in that: A guide rail (5) is installed at the upper end of the air inlet pipe (2), and the guide rail (5) is composed of a guide rod (10) and a base plate (11). There are two base plates (11) and they are symmetrically installed at the two ends of the guide rod (10). A limiting structure (6) is slidably installed on the guide rod (10), and the limiting structure (6) is composed of a slider (12), a mounting rod (13), a spring (14) and an anti-slip plate (15). There are two mounting rods (13) and they are symmetrically installed at the two ends of the slider (12). There are two springs (14) and they are respectively sleeved on the two mounting rods (13). There are two anti-slip plates (15) and they are respectively installed on the outer ends of the two mounting rods (13). The mounting rods (13) are An anti-loosening structure (7) is slidably installed on the inner side of the spring (14), and the anti-loosening structure (7) is composed of a connecting plate (17), a U-shaped clamping block (18), a connecting arm (20) and a push plate (22). There are two U-shaped clamping blocks (18) and they are symmetrically installed at the upper and lower ends of the connecting plate (17). The connecting arm (20) is installed at one end of the connecting plate (17), and the push plate (22) is installed at the upper end of the connecting arm (20). The U-shaped clamping block (18) is clamped on the two mounting plates (4). The inner end of the U-shaped clamping block (18) is symmetrically provided with two clamping grooves (19), and the U-shaped clamping block (18) is clamped on the bolt used to connect the two mounting plates (4) through the clamping grooves (19).

2. The graphite crushing device for lithium battery production according to claim 1, characterized in that: A feed port (8) is installed on the outer wall of the Raymond mill (1), and a discharge port (9) is installed on the upper part of the Raymond mill (1).

3. A graphite crushing device for lithium battery production according to claim 2, characterized in that: The guide rod (10) and the base plate (11) on the guide rail (5) are fixedly connected, and the base plate (11) is also fixedly mounted on the upper end of the air inlet pipe (2).

4. The graphite crushing device for lithium battery production according to claim 3, characterized in that: The mounting rod (13) on the limiting structure (6) is fixedly connected to the slider (12) and the anti-slip plate (15); a mounting hole (16) is provided on the slider (12); and the slider (12) is slidably mounted on the guide rod (10) through the mounting hole (16).

5. The graphite crushing device for lithium battery production according to claim 4, characterized in that: The connecting plate (17) on the anti-loosening structure (7) is fixedly connected to the U-shaped block (18) and the connecting arm (20), and the pushing plate (22) is fixedly connected to the connecting arm (20).

6. The graphite crushing device for lithium battery production according to claim 5, characterized in that: A through hole (21) is provided on the connecting arm (20), and the connecting arm (20) is installed on the mounting rod (13) through the through hole (21).

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