A grinding device for sodium iron phosphate pyrophosphate preparation

Abstract

The utility model discloses a kind of for grinding device of sodium iron phosphate pyrophosphate preparation, it is related to battery production technical field, the utility model includes rack, and grinding mechanism is arranged on rack;Indicator mechanism includes fixed cover, rotating cylinder is rotationally arranged in shell top, rotating cylinder top is fixedly provided with top disc, two first connecting rods are rotationally arranged on top disc, the end of each first connecting rod away from top disc is fixedly provided with pendulum bob, indicator rod is slidably arranged in rotating cylinder, and transparent cover is fixedly arranged in fixed cover top;When rotating shaft rotates, it drives bar pin and helical vane to rotate, and then slurry is agitated to be ground, when rotating shaft rotates, rotating cylinder is rotated by first bevel gear and second bevel gear, so as to be rotated by first connecting rod drive pendulum bob, and then sliding disc is lifted by centrifugal force, so that indicator rod moves up, and the first scale and the second scale on transparent cover can be conveniently and quickly observed the working condition of grinding mechanism.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to a grinding device for preparing sodium iron pyrophosphate. Background Technology

[0002] Sodium iron pyrophosphate (SOP) is a promising cathode material for sodium-ion batteries, and its electrochemical performance largely depends on the particle size and uniformity of its primary particles. Pin-type mills, due to their efficient shearing and grinding action, are widely used in the nano-sizing process of this material slurry.

[0003] When grinding sodium iron pyrophosphate using a pin-type grinding device, the grinding is carried out by rotating the pins driven by the spindle. In actual production, operators cannot understand the actual working status inside the grinding chamber in real time and intuitively.

[0004] Specifically, existing pin-type grinding mills typically lack effective operating status indication mechanisms. Whether the equipment is idling (due to feed interruption), in normal grinding mode, or overloaded (due to excessively thick slurry, excessive feed, or blockage within the chamber), operators often have to rely on listening to the noise level of the motor, observing the temperature of the motor casing, or depending on complex electrical control systems (such as ammeters) to make indirect judgments. This approach suffers from poor reliability and delayed response. Utility Model Content

[0005] The purpose of this invention is to provide a grinding apparatus for the preparation of sodium iron pyrophosphate, in order to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for preparing sodium iron pyrophosphate, comprising a frame on which a grinding mechanism is provided; an indicating mechanism, comprising a fixed cover fixedly mounted on a housing, a rotating cylinder rotatably mounted on the top of the housing, a top plate fixedly mounted on the top of the rotating cylinder, two first connecting rods rotatably mounted on the top plate, a pendulum fixedly mounted at the end of each first connecting rod away from the top plate, an indicating rod slidably mounted inside the rotating cylinder, and a transparent cover fixedly mounted on the top of the fixed cover.

[0007] Preferably, the outer circumferential surface of the transparent cover is fixedly provided with a first scale and a second scale.

[0008] Preferably, a sliding disk is slidably disposed on the rotating cylinder, the indicator rod is fixedly connected to the sliding disk, and a second connecting rod is rotatably disposed on each of the first connecting rods, with the end of each second connecting rod away from the first connecting rod being rotatably connected to the sliding disk.

[0009] Preferably, the grinding mechanism includes a grinding jar mounted on a frame, a rotating shaft rotatably mounted on the side of the housing near the grinding jar, a drive motor fixedly mounted inside the housing, a connecting shaft fixedly mounted on the output end of the drive motor, and the end of the connecting shaft away from the drive motor fixedly connected to the rotating shaft.

[0010] Preferably, a spiral blade and a pin are fixedly provided on the outer circumferential surface of the rotating shaft.

[0011] Preferably, a first bevel gear is fixedly provided on the outer circumferential surface of the connecting shaft, and a second bevel gear that meshes with the first bevel gear is fixedly provided at the bottom of the rotating cylinder.

[0012] In the above technical solution, the present invention provides a grinding device for the preparation of sodium iron pyrophosphate, which has the following beneficial effects: when the rotating shaft rotates, it drives the rod pin and the spiral blade to rotate, thereby stirring the slurry for grinding. When the rotating shaft rotates, the rotating cylinder is driven to rotate through the first bevel gear and the second bevel gear, thereby driving the pendulum to rotate through the first connecting rod, and then driving the sliding plate to rise through centrifugal force, so that the indicator rod moves up. Combined with the first scale and the second scale on the transparent cover, the working status of the grinding mechanism can be easily and quickly observed. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the rotating shaft provided in an embodiment of the present utility model;

[0016] Figure 3 A schematic diagram of the structure of the first bevel gear provided in an embodiment of this utility model;

[0017] Figure 4 Provided for the embodiments of this utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0018] Figure 5 This is a schematic diagram of the structure of the rotating cylinder provided in an embodiment of the present utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Frame; 2. Grinding jar; 3. Housing; 4. Shaft; 5. Spiral blade; 6. Pin; 7. Fixing cover; 8. Drive motor; 9. Connecting shaft; 10. First bevel gear; 11. Second bevel gear; 12. Rotating cylinder; 13. Top plate; 14. First connecting rod; 15. Pendulum; 16. Second connecting rod; 17. Sliding plate; 18. Slide groove; 19. Transparent cover; 20. Indicator rod; 21. First graduation; 22. Second graduation. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] Please see Figure 1-5 A grinding apparatus for preparing sodium ferric pyrophosphate, the present invention includes a frame 1, on which a grinding mechanism is mounted; an indicating mechanism, including a fixed cover 7 fixedly mounted on a housing 3, a rotating cylinder 12 rotatably mounted on the top of the housing 3, a top plate 13 fixedly mounted on the top of the rotating cylinder 12, two first connecting rods 14 rotatably mounted on the top plate 13, a pendulum 15 fixedly mounted at the end of each first connecting rod 14 away from the top plate 13, an indicating rod 20 slidably mounted inside the rotating cylinder 12, and a transparent cover 19 fixedly mounted on the top of the fixed cover 7; the grinding mechanism is fixedly mounted on the frame 1 and is used to grind sodium ferric pyrophosphate slurry, the rotating cylinder 12 is rotatably connected to the housing 3, and the rotating cylinder 12 is linked with the grinding mechanism; in the stopped state, the indicating rod 20 is at the bottom of the transparent cover 19; when... When the grinding mechanism rotates to perform grinding, it drives the rotating cylinder 12 to rotate simultaneously. When the rotating cylinder 12 rotates, the first connecting rod 14, which is rotatably connected to the top plate 13, drives the two pendulums 15 to rotate around the axis of the rotating cylinder 12. At this time, under the action of centrifugal force, the two pendulums 15 drive the indicator rod 20 to move upward, thereby moving the indicator rod 20 inside the transparent cover 19. When the grinding mechanism is in an overload state, the rotation speed of the grinding mechanism will slow down, so that the indicator rod 20 is at the lower part of the transparent cover 19. When the grinding mechanism is at a normal speed, the indicator rod 20 is in the middle part of the transparent cover 19. When the grinding mechanism is in an idling state, the indicator rod 20 will be raised to the upper part of the transparent cover 19. Thus, by observing the height of the indicator rod 20 inside the transparent cover 19, the actual working state of the grinding mechanism can be quickly and conveniently understood.

[0023] Specifically, the outer circumferential surface of the transparent cover 19 is fixedly provided with a first scale 21 and a second scale 22; the transparent cover 19 is divided into three parts by the first scale 21 and the second scale 22. When the grinding mechanism is running, if the top of the indicator rod 20 is below the first scale 21, the grinding mechanism is in an overload state. When the top of the indicator rod 20 is between the first scale 21 and the second scale 22, the grinding mechanism is in a normal working state. When the top of the indicator rod 20 is above the second scale 22, the grinding mechanism is in an unloaded state.

[0024] Specifically, a sliding disk 17 is slidably mounted on the rotating cylinder 12, and the indicator rod 20 is fixedly connected to the sliding disk 17. A second connecting rod 16 is rotatably mounted on each of the first connecting rods 14, and the end of each second connecting rod 16 away from the first connecting rod 14 is rotatably connected to the sliding disk 17. A sliding groove 18 adapted to the sliding disk 17 is opened on the rotating cylinder 12. When the grinding mechanism performs grinding, it drives the rotating cylinder 12 to rotate, thereby causing the first connecting rod 14 to drive the pendulum 15 to rotate. Under the action of centrifugal force, it will drive the two second connecting rods 16 and the sliding disk 17 to move upward, thereby driving the indicator rod 20 to move upward.

[0025] Specifically, the grinding mechanism includes a grinding jar 2 mounted on a frame 1, a rotating shaft 4 rotatably mounted on the side of a housing 3 near the grinding jar 2, a drive motor 8 fixedly mounted inside the housing 3, a connecting shaft 9 fixedly mounted on the output end of the drive motor 8, and a fixed connection between the end of the connecting shaft 9 away from the drive motor 8 and the rotating shaft 4; the connecting shaft 9 is rotatably connected to the housing 3, and a sealing disc (not shown in the figure) is fixedly mounted on the side of the housing 3 near the rotating shaft 4. In use, the grinding jar 2 is moved so that the rotating shaft 4 is inserted into the grinding jar 2. In use, the drive motor 8 drives the connecting shaft 9 to rotate, the connecting shaft 9 and the housing 3 rotate and seal, and the connecting shaft 9 drives the rotating shaft 4 to rotate, thereby enabling the grinding mechanism to perform grinding.

[0026] Specifically, a spiral blade 5 and a pin 6 are fixedly installed on the outer circumference of the rotating shaft 4; when the drive motor 8 drives the rotating shaft 4 to rotate, the spiral blade 5 can drive the slurry to move, and the high-speed rotating pin 6 grinds sodium iron pyrophosphate.

[0027] Specifically, a first bevel gear 10 is fixedly mounted on the outer circumference of the connecting shaft 9, and a second bevel gear 11 that meshes with the first bevel gear 10 is fixedly mounted on the bottom of the rotating cylinder 12; the grinding mechanism drives the spiral blade 5 and the pin 6 to rotate via the rotating shaft 4, thereby performing the grinding work. The rotating shaft 4 is driven by the drive motor 8 through the connecting shaft 9. When the connecting shaft 9 rotates, the first bevel gear 10 rotates, and when the first bevel gear 10 rotates, it drives the second bevel gear 11 to rotate, thereby driving the rotating cylinder 12 to rotate, thus enabling the indicator rod 20 to move.

[0028] 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 grinding apparatus for preparing sodium ferric pyrophosphate, comprising a frame (1), characterized in that, A grinding mechanism is provided on the frame (1); The indicating mechanism includes a fixed cover (7) fixedly mounted on a housing (3), a rotating cylinder (12) rotatably mounted on the top of the housing (3), a top plate (13) fixedly mounted on the top of the rotating cylinder (12), two first connecting rods (14) rotatably mounted on the top plate (13), a pendulum (15) fixedly mounted on the end of each first connecting rod (14) away from the top plate (13), an indicating rod (20) slidably mounted inside the rotating cylinder (12), and a transparent cover (19) fixedly mounted on the top of the fixed cover (7).

2. The grinding apparatus for preparing sodium ferric pyrophosphate according to claim 1, characterized in that, The outer circumferential surface of the transparent cover (19) is fixedly provided with a first scale (21) and a second scale (22).

3. The grinding apparatus for preparing sodium ferric pyrophosphate according to claim 2, characterized in that, A sliding disk (17) is slidably disposed on the rotating cylinder (12), and the indicator rod (20) is fixedly connected to the sliding disk (17). A second connecting rod (16) is rotatably disposed on each of the first connecting rods (14), and the end of each second connecting rod (16) away from the first connecting rod (14) is rotatably connected to the sliding disk (17).

4. The grinding apparatus for preparing sodium ferric pyrophosphate according to claim 3, characterized in that, The grinding mechanism includes a grinding jar (2) mounted on a frame (1), a rotating shaft (4) is rotatably mounted on the side of the housing (3) near the grinding jar (2), a drive motor (8) is fixedly mounted inside the housing (3), a connecting shaft (9) is fixedly mounted at the output end of the drive motor (8), and the end of the connecting shaft (9) away from the drive motor (8) is fixedly connected to the rotating shaft (4).

5. A grinding apparatus for preparing sodium ferric pyrophosphate according to claim 4, characterized in that, The outer circumferential surface of the rotating shaft (4) is fixedly provided with a spiral blade (5) and a pin (6).

6. The grinding apparatus for preparing sodium ferric pyrophosphate according to claim 5, characterized in that, A first bevel gear (10) is fixedly provided on the outer circumferential surface of the connecting shaft (9), and a second bevel gear (11) that meshes with the first bevel gear (10) is fixedly provided at the bottom of the rotating cylinder (12).

Images