Rod cutting device of kiln sand mill

Abstract

The utility model relates to the technical field of grinding, in particular to a rod cutting device of a kiln sand mill, which comprises a rod cutting structure, the rod cutting structure comprises a rod cutting framework and a connecting rod; cutting the head of the rod; a plurality of connecting rods are arranged; the connecting rods are arranged in the circumferential direction of the rod cutting framework. The bar cutting head is arranged on the side, away from the bar cutting framework, of the connecting rod. The two sides of the bar cutting head are of plough-shaped structures. According to a traditional rod pin type sand mill, the problem that a rod chipper is used as an easy-to-damage and easy-to-consume part is not effectively solved, and after the rod chipper is abraded in a large area, the diameter and the length of the rod chipper are subjected to loss of different degrees, so that the grinding efficiency is reduced. Compared with the prior art, the bar cutting head is designed to be provided with the plough-shaped structures on the two sides, so that when the bar cutting head rotates, the streamline structure enables the bar cutting head to bear small friction resistance, and when one end of the bar cutting head is seriously abraded, the plough-shaped structure at the other end of the bar cutting head can be used by changing the direction, so that the efficiency of the bar cutting head is high, and the service life of the bar cutting head is long. And the abrasion and replacement of the rod cutting piece are slowed down.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, and in particular to a rod grinding device for a kiln sand mill. Background Technology

[0002] Sand mills, as highly efficient grinding devices, are widely used in the field of powder materials, especially in the preparation of lithium-ion battery cathode materials, where they play a crucial role. Through efficient grinding, sand mills can significantly improve the fineness and uniformity of products, thereby enhancing the quality and performance of the final product.

[0003] During grinding in a sand mill, grinding rods are often used. These rods are typically made of metal, such as stainless steel or alloy steel, to ensure sufficient strength and durability. In addition, there are other methods to enhance the grinding effect, such as coating the rod surface with a wear-resistant material to extend its service life, or regularly replacing severely worn rods to maintain the sand mill's operating efficiency.

[0004] Although the above methods have a certain effect on enhancing the grinding effect, the wear and consumption of the grinding rods are relatively fast. When the grinding rods are worn over a large area, the diameter and length of the grinding rods will be reduced to varying degrees. In particular, the length will be reduced rapidly with the extension of the usage time. The effect of the grinding media and materials carried by the grinding rods that do not meet the length standard is weakened, resulting in a decrease in grinding efficiency. Utility Model Content

[0005] In view of the technical problems of the prior art, this utility model provides a rod cutting device for a kiln sand mill.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A rod-cutting device for a kiln sand mill includes: a rod-cutting structure; the rod-cutting structure includes: a rod-cutting skeleton, connecting rods; a rod-cutting head; the number of connecting rods is several; the connecting rods are arranged circumferentially along the rod-cutting skeleton; the rod-cutting head is located on the side of the connecting rod away from the rod-cutting skeleton; the two sides of the rod-cutting head are plow-shaped structures.

[0008] Furthermore, it also includes: a machine base and a grinding cylinder; the grinding cylinder includes: a fixed shaft; the fixed shaft is connected to the machine base.

[0009] Furthermore, the bar-cutting structure is housed within the grinding cylinder; the bar-cutting structure is rotatable relative to the grinding cylinder.

[0010] Furthermore, it also includes: a filter screen; the filter screen is set inside the rod-cutting frame; the filter screen is fixed to the grinding cylinder.

[0011] Furthermore, it also includes: a grinding media inlet; the grinding media inlet is located on the grinding cylinder.

[0012] Furthermore, it also includes: a bar cutting drive shaft; the bar cutting drive shaft extends into the grinding cylinder; the bar cutting drive shaft can rotate relative to the grinding cylinder; the bar cutting drive shaft is connected to the bar cutting frame.

[0013] Furthermore, it also includes: a transmission belt, a motor drive shaft, and a drive motor; the drive motor is mounted on the machine base; the motor drive shaft is connected to the drive motor; one end of the transmission belt is looped on the motor drive shaft, and the other end is looped on the bar cutting drive shaft.

[0014] The beneficial effects of this utility model are: by designing the bar milling head with plow-shaped structures on both sides, the streamlined structure reduces the frictional resistance it experiences when the bar milling head rotates, and when one end is severely worn, the direction can be reversed to use the plow-shaped structure on the other end, thus making this utility model more efficient and having a longer service life.

[0015] In addition, there are interlocking transmission belts, drive motors, and motor drive shafts, which allow the positions of the relevant structures to be adjusted according to the specific space conditions, rather than directly connecting the drive motor to a single drive shaft. This avoids occupying a large amount of space on the same straight line and makes the space utilization rate higher. Attached Figure Description

[0016] Figure 1 : A schematic diagram of the structure of this utility model;

[0017] Figure 2 Schematic diagram of the bar-shaped structure;

[0018] Figure 3 A partial view of a section of a bar-cut structure.

[0019] In the diagram: 1. Base; 2. Rod cutting drive shaft; 3. Drive belt; 4. Motor drive shaft; 5. Drive motor; 6. Grinding media inlet; 7. Grinding cylinder; 71. Fixed shaft; 8. Filter screen; 9. Rod cutting structure; 91. Rod cutting skeleton; 92. Connecting rod; 93. Rod cutting head. Detailed Implementation

[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0021] according to Figure 1-3 This utility model provides a rod-cutting device for a kiln sand mill, including: a base 1, a rod-cutting drive shaft 2, a drive belt 3, a motor drive shaft 4, a drive motor 5, a grinding media inlet 6, a grinding cylinder 7, a filter screen 8, and a rod-cutting structure 9.

[0022] The bar milling structure 9 includes: a bar milling frame 91, connecting rods 92, and a bar milling head 93. There are several connecting rods 92. The connecting rods 92 are arranged circumferentially along the bar milling frame 91. The bar milling head 93 is located on the side of the connecting rods 92 away from the bar milling frame 91. The two sides of the bar milling head 93 have plow-shaped structures.

[0023] When material needs to be processed, the material and grinding media are added to the grinding rod structure 9. Then, the grinding rod frame 91 rotates, driving the connecting rod 92 to rotate, causing the grinding rod head 93 to rotate. This brings the grinding rod head 93 into contact with the material and grinding media, causing friction between the material and other structures, thus grinding the material to a certain degree. This invention has several grinding rod heads 93, allowing for grinding of materials at multiple positions. Plow-shaped structures are provided on both sides of the grinding rod head 93, with the pointed ends of the two plow-shaped structures facing away from each other. That is, the pointed end or the side of the plow-shaped structure contacts the material first. Compared with ordinary grinding rods, this structure creates a streamlined movement path for the grinding media and material during operation, greatly reducing the frictional resistance of the grinding rod. In addition, since there are plow-shaped structures on both sides, when one end of the grinding rod wears out, the rotation direction of the grinding rod frame 91 can be reversed for continued use, improving the service life of the grinding rod and reducing wear and replacement. This invention features a double-plowhead design for the bar milling head 93, which reduces resistance during grinding and allows both ends of the bar milling head 93 to be used, resulting in higher grinding efficiency.

[0024] The grinding cylinder 7 includes: a fixed shaft 71, which is connected to the machine base 1; a bar-cutting structure 9, which is rotatable relative to the grinding cylinder 7; a filter screen 8, which is fixed to the grinding cylinder 7 and housed within the bar-cutting frame 91; a grinding media inlet 6, which is located on the grinding cylinder 7; a bar-cutting drive shaft 2, which is rotatable within the grinding cylinder 7 and is connected to the bar-cutting frame 91; a drive motor 5, which is mounted on the machine base 1; and a motor drive shaft 4, which is connected to the drive motor 5. A transmission belt 3 is fitted at one end onto the motor drive shaft 4 and at the other end onto the bar-cutting drive shaft 2.

[0025] A filter screen 8 is fixed inside the grinding cylinder 7 and is located within the rod-cutting frame 91. When the rod-cutting frame 91 rotates, it does not interfere with the filter screen 8. When the material is ground to a certain degree, it passes through the filter screen 8, allowing qualified material to be automatically collected and no longer ground, thus avoiding unnecessary grinding. Simultaneously, the filter screen moves unqualified material into the rod-cutting frame 91, keeping it within contact with the rod-cutting head 93 and the grinding media, thus limiting its movement and ensuring continuous grinding, resulting in high efficiency. The grinding cylinder 7 has a grinding media inlet 6, allowing the grinding media to be added and interact with the material through friction, shearing, and collision, accelerating the grinding process. The grinding media should generally be of equal diameter to ensure uniform grinding; materials such as glass beads, zirconium silicate beads, and steel balls can be used. When it is necessary to rotate the bar mill frame 91, the drive motor 5 can be started. The drive motor 5 causes the motor drive shaft 4 to rotate. Since one end of the transmission belt 3 is wrapped around the motor drive shaft 4 and the other end is wrapped around the bar mill drive shaft 2, the rotation of the motor drive shaft 4 will drive the bar mill drive shaft 2 to rotate. The bar mill drive shaft 2 will then drive the bar mill frame 91 to rotate, so that the material is ground. By using the transmission belt 3 to drive the other drive shaft through one drive shaft, the position of the drive motor 5 can be installed above the grinding cylinder 7 or in another position, instead of being directly connected to a single drive shaft. This avoids occupying a large space on the same straight line and makes the space utilization rate higher.

[0026] Working principle and usage process of this utility model:

[0027] When grinding materials is required, the materials and grinding media are first added into the grinding cylinder 7, so that the materials and grinding media reach the rod-shaped frame 91 and are trapped by the filter screen. Then, the grinding media inlet 6 is closed, and the drive motor 5 is started, causing the motor drive shaft 4 to rotate. The motor drive shaft 4 then drives the drive belt 3, which in turn drives the rod-shaped drive shaft 2 to rotate. The rod-shaped drive shaft 2 causes the rod-shaped frame 91 to rotate, which in turn causes the connecting rod 92 to rotate, that is, the rod-shaped head 93 to rotate. When the rod-shaped head 93 rotates, the plow-shaped structure comes into contact with the materials and grinding media, causing the materials to collide, grind, and shear, thus grinding the materials. When the materials are ground to a certain extent, they can pass through the filter screen 8 inside the rod-shaped frame 91, moving them away from the rod-shaped head 93, and can then be discharged.

[0028] In summary, by designing the bar milling head with plow-shaped structures on both sides, the streamlined structure of the bar milling head reduces frictional resistance during rotation. Furthermore, when one end is severely worn, the plow-shaped structure on the other end can be switched to use the other end. This results in higher efficiency and service life for the present invention, reducing wear and replacement of the bar milling parts.

[0029] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A kiln sand mill rod skimming device characterized by: include: Rod-shaped structure (9); The bar-cutting structure (9) includes: a bar-cutting skeleton (91) and a connecting rod (92); Stick-cut head (93); The number of the connecting rods (92) is several; The connecting rod (92) is arranged circumferentially along the rod-shaped skeleton (91); The bar milling head (93) is located on the side of the connecting rod (92) away from the bar milling frame (91); The bar milling head (93) has a plow-shaped structure on both sides.

2. The rod-cutting device for a kiln sand mill as described in claim 1, characterized in that: It also includes: a base (1) and a grinding cylinder (7); The grinding cylinder (7) includes: a fixed shaft (71); The fixed shaft (71) is connected to the base (1).

3. The rod-cutting device for a kiln sand mill as described in claim 2, characterized in that: The rod-cutting structure (9) is disposed inside the grinding cylinder (7); The bar-cutting structure (9) is rotatable relative to the grinding cylinder (7).

4. The rod-cutting device for a kiln sand mill as described in claim 2, characterized in that: Also includes: filter screen (8); The filter screen (8) is disposed inside the rod frame (91); The filter screen (8) is fixed to the grinding cylinder (7).

5. The rod-cutting device for a kiln sand mill as described in claim 2, characterized in that: It also includes: a grinding media inlet (6); The grinding medium inlet (6) is located on the grinding cylinder (7).

6. The rod-cutting device for a kiln sand mill as described in claim 2, characterized in that: It also includes: bar-cut drive shaft (2); The rod cutting drive shaft (2) extends into the grinding cylinder (7); The rod-cutting drive shaft (2) can rotate relative to the grinding cylinder (7); The rod cutting drive shaft (2) is connected to the rod cutting skeleton (91).

7. The rod-cutting device for a kiln sand mill as described in claim 6, characterized in that: It also includes: a transmission belt (3), a motor drive shaft (4), and a drive motor (5); The drive motor (5) is mounted on the base (1); The motor drive shaft (4) is connected to the drive motor (5); One end of the transmission belt (3) is fitted onto the motor transmission shaft (4), and the other end is fitted onto the bar mill transmission shaft (2).

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