Stirring and mixing device with double-helix structure

Abstract

The utility model relates to the field of lithium battery stirring, in particular to a stirring and mixing device with a double-helix structure, which comprises a rack, a tank body and a stirring shaft, the rack is provided with a first rotating mechanism and a second rotating mechanism, the tank body is connected with the first rotating mechanism, the stirring shaft is connected with the second rotating mechanism, and the stirring shaft penetrates through the tank body and is rotatably connected with the tank body. A first spiral blade is arranged on the inner wall of the tank body, a plurality of through holes arranged at equal intervals are formed in the first spiral blade in the spiral direction, and a second spiral blade opposite to the first spiral blade in direction is arranged on the stirring shaft. The first spiral blades are arranged on the inner wall of the tank body, so that the first spiral blades have better strength and stability when the tank body rotates, and the blades are prevented from loosening and falling off; the through holes are formed in the first spiral blades, and the second spiral blades on the stirring shaft are opposite to the first spiral blades in direction, so that the post-mixing uniformity during material mixing can be improved.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery stirring, in particular to a stirring and mixing device with a double helix structure. Background Art

[0002] CN201521115008.9 discloses a stirring device for lithium battery negative electrode powder material, including a stirring kettle and an inner stirring shaft installed in the stirring kettle, the inner stirring shaft is driven by a motor on the outside of the stirring kettle, a double-helical stirring blade is installed on the inner stirring shaft, stainless steel rods are also fixedly installed on the inner stirring shaft at intervals, and the double-helical stirring blades are connected to the inner stirring shaft through a magnetically controlled mortise and tenon structure.

[0003] In the above technical scheme, the material is first stirred by the stainless steel rod on the stirring inner shaft, and then the stirring inner shaft is made to produce a double-helical stirring blade fixed by a magnetically controlled mortise and tenon structure through an electromagnetic device, and then the double-helical stirring blade is used for stirring. Since the double-helical stirring blade is installed on the stirring inner shaft, the spiral blade is prone to cracks and loosening and falling off during stirring. Since the directions of the double-helical blades are in the same direction, the mixing process is not uniform. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problem and provides a stirring and mixing device with a double-helix structure. A first spiral blade is provided on the inner wall of the tank body so that the first spiral blade can have a better strength and stability when the tank body rotates, thereby preventing the blade from loosening and falling off. The first spiral blade is provided with a through hole and the second spiral blade on the stirring shaft is designed in the opposite direction to the first spiral blade, which can improve the uniformity of post-mixing during mixing.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A stirring and mixing device with a double helix structure comprises a frame, a tank body and a stirring shaft, wherein the frame is provided with a first rotating mechanism for driving the tank body to rotate and a second rotating mechanism for driving the stirring shaft to rotate, the tank body is connected to the first rotating mechanism, the stirring shaft is connected to the second rotating mechanism, the stirring shaft passes through the tank body and is rotationally connected to the tank body, a first spiral blade is provided on the inner wall of the tank body, the first spiral blade is provided with a plurality of equidistantly arranged through holes along the spiral direction, and the stirring shaft is provided with a second spiral blade in the opposite direction to the first spiral blade.

[0007] In the above-mentioned stirring and mixing device with a double helix structure, the first spiral blade is composed of a plurality of blade sections welded together, and the blades are blades of equal width.

[0008] In the above-mentioned stirring and mixing device with a double helical structure, the first helical blade is a first helical blade made of carbon steel, and the second helical blade is a second helical blade made of carbon steel.

[0009] In the above-mentioned stirring and mixing device with a double helix structure, the tank body is also provided with a notch for feeding and discharging materials.

[0010] In the above-mentioned stirring and mixing device with a double helix structure, the tank body includes a front cone portion, a middle cylinder portion, and a rear cone portion, and the notch is arranged on the rear cone portion.

[0011] In the above-mentioned stirring and mixing device with a double helical structure, the angle between the first helical blade and the second helical blade is 30° to 35°.

[0012] In the above-mentioned stirring and mixing device with a double-helix structure, the first rotating mechanism includes a first rotating motor connected to a frame, and a belt sleeved on the tank body and on a power output end of the first rotating motor.

[0013] In the above-mentioned stirring and mixing device with a double helix structure, the second rotating mechanism includes a second rotating motor connected to the frame, and the power output end of the second rotating motor is connected to the stirring shaft.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a first spiral blade on the inner wall of the tank body, so that the first spiral blade can have a better strength and stability when the tank body rotates, thereby preventing the blade from loosening and falling off. The first spiral blade is provided with a through hole and the second spiral blade on the stirring shaft is designed in the opposite direction to the first spiral blade, which can improve the uniformity of post-mixing when mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a stereoscopic diagram of a stirring and mixing device with a double helix structure according to Example 1;

[0017] Figure 2 is a cross-sectional view of a stirring and mixing device with a double helix structure in Example 1;

[0018] Figure 3 yes Figure 2 A partial enlarged schematic diagram of . DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] refer to Figure 1-3 , a double-helix structure stirring and mixing device, comprising a frame, a tank body, and a stirring shaft, the frame is provided with a first rotating mechanism for driving the tank body to rotate, and a second rotating mechanism for driving the stirring shaft to rotate, the tank body is connected to the first rotating mechanism, the stirring shaft is connected to the second rotating mechanism, the stirring shaft passes through the tank body and is rotatably connected to the tank body, a first spiral blade is provided on the inner wall of the tank body, the first spiral blade is provided with a plurality of equidistantly arranged through holes along the spiral direction, and the stirring shaft is provided with a second spiral blade opposite to the first spiral blade.

[0022] Under this design, when in use, the operator in this field first puts the material into the device, and then drives the tank body 2 to rotate through the first rotating mechanism 11, and cooperates with the second rotating mechanism 12 to drive the stirring shaft 3 to rotate, so that the material is mixed or discharged under the rotation action of the first spiral blade 24 in the tank body 2 and the second spiral blade 31 on the stirring shaft. When the first rotating mechanism 11 drives the tank body 2 to rotate forward, the second rotating mechanism 12 drives the stirring shaft 3 to reverse, so that the material moves along the blades in the tank body 2 toward the notch to achieve discharge. When the first rotating mechanism 11 drives the tank body to reverse, the second rotating mechanism 12 drives the stirring shaft 3 to rotate forward, and the material will move along the deep inside of the tank body 2 to be mixed and stirred.

[0023] In this embodiment, the first spiral blade 24 is formed by welding a plurality of blade sections, and the blades are of equal width, which facilitates the control of casting quality during casting.

[0024] Preferably, the first spiral blade 24 is a first spiral blade 24 made of carbon steel, and the second spiral blade 31 is a second spiral blade made of carbon steel. Carbon steel has high hardness, wear resistance and corrosion resistance.

[0025] Preferably, the tank body 2 is also provided with a notch 231 for feeding and discharging materials; further, the tank body 2 includes a front cone 21, a middle cylinder 22, and a rear cone 23, and the notch 231 is arranged on the rear cone 23. The notch 231 for feeding and discharging materials on the rear cone 23 can make the feeding and discharging of materials more convenient.

[0026] In this embodiment, the angle between the first spiral blade 24 and the second spiral blade 31 is 30° to 35°. Figure 2 As shown, specifically, the included angle point A between the first spiral blade 24 and the second spiral blade 31 is 30° to 35°.

[0027] Preferably, the first rotating mechanism 11 includes a first rotating motor 111 connected to the frame, and a belt 112 sleeved on the tank body 2 and on the power output end of the first rotating motor 111; the belt 112 is driven by the first rotating motor 111, so that the tank body 2 can rotate to complete the mixing or discharging of the material.

[0028] More preferably, the second rotating mechanism 12 includes a second rotating motor 121 connected to the frame 1, and the power output end of the second rotating motor 121 is connected to the stirring shaft 3; the stirring shaft 3 is driven to rotate by the second rotating motor 121, and cooperates with the first rotating mechanism 11 to drive the tank body 2 to rotate to improve the mixing degree of the material in the tank body 2.

Claims

1. A stirring and mixing device with a double helix structure, comprising a frame, a tank body, and a stirring shaft, wherein the frame is provided with a first rotating mechanism for driving the tank body to rotate, and a second rotating mechanism for driving the stirring shaft to rotate, the tank body is connected to the first rotating mechanism, the stirring shaft is connected to the second rotating mechanism, the stirring shaft passes through the tank body and is rotationally connected to the tank body, characterized in that: The inner wall of the tank body is provided with a first spiral blade, the first spiral blade is provided with a plurality of through holes arranged at equal distances along the spiral direction, and the stirring shaft is provided with a second spiral blade in the opposite direction to the first spiral blade.

2. A stirring and mixing device with a double helix structure according to claim 1, characterized in that: The first spiral blade is composed of a plurality of blade sections welded together, and the blades are blades of equal width.

3. A stirring and mixing device with a double helix structure according to claim 1, characterized in that: The first spiral blade is a first spiral blade made of carbon steel, and the second spiral blade is a second spiral blade made of carbon steel.

4. A stirring and mixing device with a double helix structure according to claim 1, characterized in that: The tank body is also provided with a notch for feeding and discharging materials.

5. A stirring and mixing device with a double helix structure according to claim 4, characterized in that: The tank body comprises a front cone portion, a middle cylinder portion and a rear cone portion, and the notch is arranged on the rear cone portion.

6. A stirring and mixing device with a double helix structure according to claim 1, characterized in that: The included angle between the first spiral blade and the second spiral blade is 30° to 35°.

7. A stirring and mixing device with a double helix structure according to claim 1, characterized in that: The first rotating mechanism comprises a first rotating motor connected to the frame, and a belt sleeved on the tank body and the power output end of the first rotating motor.

8. A stirring and mixing device with a double helix structure according to claim 1, characterized in that: The second rotating mechanism comprises a second rotating motor connected to the frame, and a power output end of the second rotating motor is connected to the stirring shaft.

Images