A raw material mixing device for producing a lithium iron manganese phosphate battery positive electrode material

Abstract

The utility model discloses a raw material mixing device for positive electrode material production of lithium iron manganese phosphate battery relates to lithium battery production technical field, the utility model discloses a base is hinged and is installed with mixing jar in base, is installed with stirring subassembly in mixing jar, and the one end fixed mounting of mixing jar's rotating shaft has first gear, and the side sliding mounting of base has rack, and the side rotary mounting of base has second gear, and the outer surface fixed mounting of second gear has the lever of pushing, and the lower surface fixed mounting of rack has the guide groove, and the side fixed mounting of base has first motor, and the side mounting of base has third gear, and third gear is engaged with second gear, and the side fixed mounting of base has the protective housing, and the fixed mounting of protective housing has first motor, in the utility model, material can make mixing jar reciprocating swing in base while stirring, thereby taking material and shaking in mixing jar, thereby has improved the mixing effect of material.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, specifically to a raw material mixing device for the production of positive electrode materials for lithium iron manganese phosphate batteries. Background Technology

[0002] A lithium iron phosphate (LiFePO4) battery is a lithium-ion battery that uses lithium iron phosphate (LiFePO4) as the positive electrode material and carbon as the negative electrode material. The rated voltage of a single cell is 3.2V, and the charging cut-off voltage is 3.6V~3.65V. During charging, some lithium ions are released from the lithium iron phosphate and transferred to the negative electrode via the electrolyte, where they are embedded in the carbon material. Simultaneously, electrons are released from the positive electrode and travel from the external circuit to the negative electrode, maintaining the chemical reaction balance. During discharging, lithium ions are released from the negative electrode, travel through the electrolyte to the positive electrode, and simultaneously, electrons are released from the negative electrode and travel from the external circuit to the positive electrode, providing energy to the external environment.

[0003] In the production of lithium iron manganese phosphate battery cathode materials, a mixing device is required to mix the raw materials. However, some existing mixing devices can only achieve mixing by stirring, which is a relatively simple method. During the mixing process, the material at the bottom of the mixing tank may not be stirred, which can easily lead to uneven mixing of the raw materials. Utility Model Content

[0004] To address the problem that some existing mixing devices can only achieve mixing through stirring, which is a relatively simple method and easily leads to uneven mixing of raw materials, the purpose of this utility model is to provide a raw material mixing device for the production of lithium iron manganese phosphate battery cathode materials.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a raw material mixing device for the production of positive electrode materials for lithium iron manganese phosphate batteries, comprising a base, a mixing tank hinged inside the base, a feed inlet fixedly installed at the top of the mixing tank, a discharge valve fixedly installed at the conical bottom of the mixing tank, a stirring assembly installed inside the mixing tank, a first gear fixedly installed at one end of the rotating shaft of the mixing tank, a rack slidably installed on one side of the base and meshing with the first gear, a second gear rotatably installed on one side of the base, a lever fixedly installed on the outer surface of the second gear, a guide groove fixedly installed on the lower surface of the rack and the lever slidably locked in the guide groove, a first motor fixedly installed on one side of the base, a third gear installed on one side of the base and meshing with the second gear, a protective shell fixedly installed on one side of the base, and the first gear, rack, guide groove, second gear, and third gear installed inside the protective shell, a first motor fixedly installed on the protective shell, and the output end of the first motor fixedly connected to one end of the rotating shaft of the third gear.

[0006] Preferably, the stirring assembly includes a stirring paddle, which is rotatably installed inside the mixing tank. A second motor is fixedly installed at the top of the mixing tank, and the output end of the second motor is fixedly connected to the top of the stirring paddle. A scraper is fixedly installed on the stirring paddle, and the scraper contacts the inner wall of the mixing tank.

[0007] Preferably, support components are installed at the four corners of the bottom of the base. Each of the four support components includes a sleeve, and the sleeve is fixedly installed at the four corners of the bottom of the base. Support feet are slidably engaged in the four sleeves. Threaded rods are rotatably installed at the four corners of the bottom of the base, and the threaded rods are threaded into the corresponding support feet.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, while the material is being stirred, the first motor drives the third gear to rotate, the third gear drives the second gear to rotate, and the second gear drives the lever to make a circular motion while sliding up and down in the guide groove, thereby driving the rack to slide back and forth. The rack drives the first gear to rotate back and forth, and the first gear drives the mixing tank to swing back and forth in the base, thereby driving the material to shake in the mixing tank, thus improving the mixing effect of the material. 2. In this utility model, by setting an adjustable support component, the threaded rod can be rotated by a tool according to the flatness of the device placement position. The threaded rod drives the support foot to slide and rise and fall in the corresponding sleeve, adjusting the base to a horizontal state, making the device operation more stable. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the base of this utility model; Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic cross-sectional view of the mixing tank of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the sleeve and support foot of this utility model.

[0011] In the diagram: 1. Base; 2. Mixing tank; 3. Protective shell; 4. First motor; 5. Support assembly; 501. Sleeve; 502. Support foot; 503. Threaded rod; 6. First gear; 7. Second gear; 8. Third gear; 9. Rack; 10. Lever; 11. Guide groove; 12. Stirring assembly; 1201. Stirring paddle; 1202. Second motor; 13. Scraper; 14. Feed inlet; 15. Discharge valve. Detailed Implementation

[0012] 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.

[0013] Example: Figure 1-5As shown, this utility model provides a raw material mixing device for the production of lithium iron manganese phosphate battery cathode materials, including a base 1, a mixing tank 2 hinged inside the base 1, the mixing tank 2 consisting of a tank body and a tank cover, the tank cover being detachably bolted onto the tank body for easy maintenance of the internal mechanism, a feed inlet 14 fixedly installed at the top of the mixing tank 2, a discharge valve 15 fixedly installed at the conical bottom of the mixing tank 2, a stirring assembly 12 installed inside the mixing tank 2, a first gear 6 fixedly installed at one end of the rotating shaft of the mixing tank 2, a rack 9 slidably installed on one side of the base 1 and meshing with the first gear 6, a second gear 7 rotatably installed on one side of the base 1, a lever 10 fixedly installed on the outer surface of the second gear 7, a guide groove 11 fixedly installed on the lower surface of the rack 9 and slidably engaged in the guide groove 11, a first motor 4 fixedly installed on one side of the base 1, and a third gear 8 installed on one side of the base 1 and meshing with the second gear 7. The base 1 has a protective shell 3 fixedly installed on one side. The first gear 6, rack 9, guide groove 11, second gear 7, and third gear 8 are installed inside the protective shell 3. The protective shell 3 has a first motor 4 fixedly installed on it, and the output end of the first motor 4 is fixedly connected to one end of the shaft of the third gear 8. The raw materials for the production of lithium iron manganese phosphate battery cathode materials can be put into the mixing tank 2 through the feed port 14. The stirring assembly 12 is used to mix and stir the raw materials. At the same time, the first motor 4 can drive the third gear 8 to rotate, the third gear 8 can drive the second gear 7 to rotate, and the second gear 7 can drive the lever 10 to make a circular motion while sliding up and down in the guide groove 11, thereby driving the rack 9 to slide back and forth. The rack 9 drives the first gear 6 to rotate back and forth (the maximum rotation angle of the first gear 6 in one direction does not exceed 70 degrees). The first gear 6 drives the mixing tank 2 to swing back and forth in the base 1, thereby causing the material to shake in the mixing tank 2, thus improving the mixing effect of the material.

[0014] The mixing assembly 12 includes a mixing paddle 1201, which is rotatably installed inside the mixing tank 2. A second motor 1202 is fixedly installed at the top of the mixing tank 2, and the output end of the second motor 1202 is fixedly connected to the top of the mixing paddle 1201. A scraper 13 is fixedly installed on the mixing paddle 1201, and the scraper 13 contacts the inner wall of the mixing tank 2. The second motor 1202 can drive the mixing paddle 1201 to rotate inside the mixing tank 2 to mix the materials. While the mixing paddle 1201 rotates, it also drives the scraper 13 to rotate inside the mixing tank 2, which can scrape off the materials attached to the inner wall of the mixing tank 2.

[0015] Support components 5 are installed at the four corners of the bottom of the base 1. Each of the four support components 5 includes a sleeve 501, and the sleeve 501 is fixedly installed at the four corners of the bottom of the base 1. Support feet 502 are slidably engaged in the four sleeves 501. Threaded rods 503 are rotatably installed at the four corners of the bottom of the base 1, and the threaded rods 503 are threaded into the corresponding support feet 502. Depending on the flatness of the device placement position, the threaded rods 503 can be rotated using a tool. The threaded rods 503 drive the support feet 502 to slide and rise and fall in the corresponding sleeves 501, adjusting the base 1 to a horizontal state and making the device more stable.

[0016] Working Principle: In use, this invention first adjusts the base 1 to a horizontal position by rotating the threaded rod 503 according to the flatness of the device's placement location. The threaded rod 503 drives the support foot 502 to slide and rise within the corresponding sleeve 501. The raw materials for producing lithium iron manganese phosphate battery cathode materials can then be fed into the mixing tank 2 through the feed inlet 14. The second motor 1202 drives the stirring paddle 1201 to rotate within the mixing tank 2, mixing the materials. Simultaneously, the rotation of the stirring paddle 1201 drives the scraper 13 to rotate within the mixing tank 2, thus cleaning the inner wall of the mixing tank 2. The material attached to the surface is scraped off. While stirring, the first motor 4 drives the third gear 8 to rotate, the third gear 8 drives the second gear 7 to rotate, and the second gear 7 drives the lever 10 to make a circular motion while sliding up and down in the guide groove 11, thereby driving the rack 9 to slide back and forth. The rack 9 drives the first gear 6 to rotate back and forth (the maximum rotation angle of the first gear 6 in one direction does not exceed seventy degrees). The first gear 6 drives the mixing tank 2 to swing back and forth in the base 1, thereby causing the material to shake in the mixing tank 2, thus improving the mixing effect of the material. The mixed material can be discharged through the discharge valve 15.

[0017] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0018] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A raw material mixing device for the production of lithium iron manganese phosphate battery cathode material, comprising a base (1), characterized in that: A mixing tank (2) is hinged inside the base (1). A feed inlet (14) is fixedly installed at the top of the mixing tank (2). A discharge valve (15) is fixedly installed at the conical bottom of the mixing tank (2). A stirring assembly (12) is installed inside the mixing tank (2). A first gear (6) is fixedly installed at one end of the rotating shaft of the mixing tank (2). A rack (9) is slidably installed on one side of the base (1) and meshes with the first gear (6). A second gear (7) is rotatably installed on one side of the base (1). A lever (10) is fixedly installed on the outer surface of the second gear (7). A lever (10) is fixedly installed on the lower surface of the rack (9). The base (1) is equipped with a guide groove (11) and the lever (10) is slidably locked in the guide groove (11). A first motor (4) is fixedly installed on one side of the base (1). A third gear (8) is installed on one side of the base (1) and the third gear (8) meshes with the second gear (7). A protective shell (3) is fixedly installed on one side of the base (1). The first gear (6), rack (9), guide groove (11), second gear (7), and third gear (8) are installed in the protective shell (3). The first motor (4) is fixedly installed on the protective shell (3), and the output end of the first motor (4) is fixedly connected to one end of the shaft of the third gear (8).

2. The raw material mixing device for the production of lithium iron manganese phosphate battery cathode material as described in claim 1, characterized in that, The stirring assembly (12) includes a stirring paddle (1201), which is rotatably mounted inside the mixing tank (2).

3. The raw material mixing device for the production of lithium iron manganese phosphate battery cathode material as described in claim 1, characterized in that, The top of the mixing tank (2) is fixedly installed with a second motor (1202), and the output end of the second motor (1202) is fixedly connected to the top of the stirring paddle (1201).

4. The raw material mixing device for the production of lithium iron manganese phosphate battery cathode material as described in claim 2, characterized in that, A scraper (13) is fixedly installed on the stirring paddle (1201), and the scraper (13) is in contact with the inner wall of the mixing tank (2).

5. The raw material mixing device for the production of lithium iron manganese phosphate battery cathode material as described in claim 1, characterized in that, Support components (5) are installed at the four corners of the bottom of the base (1). Each of the four support components (5) includes a sleeve (501), and the sleeve (501) is fixedly installed at the four corners of the bottom of the base (1).

6. The raw material mixing device for the production of lithium iron manganese phosphate battery cathode material as described in claim 5, characterized in that, Each of the four sleeves (501) is fitted with a support foot (502).

7. The raw material mixing apparatus for the production of lithium iron manganese phosphate battery cathode material as described in claim 1, characterized in that, Threaded rods (503) are rotatably installed at the four corners of the bottom of the base (1), and the threaded rods (503) are threaded into the corresponding support feet (502).

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