A stirring device for a sodium-ion battery slurry

Abstract

The present invention relates to the technical field of sodium-ion battery processing. More specifically, it is a stirring device for sodium-ion battery slurry, including a processing tank, a stirring shaft, a power element, a feeding funnel, and a sealing cover. The stirring device further includes: a controller disposed on the processing tank; a plurality of movable rods circumferentially arranged around the stirring shaft, one end of the movable rod being hinged to the stirring shaft; a mounting rod, one end of which is movably disposed on the stirring shaft, a counterweight seat being movably sleeved on the movable rod, the counterweight seat being movably connected to the other end of the mounting rod, and a triangular structure being formed among the mounting rod, the movable rod, and the stirring shaft; stirring blades disposed on the mounting rod; and a gear-shifting module disposed on the processing tank and connected to the stirring shaft. Compared with the traditional fixed stirring blades, this device can use dynamic stirring blades to fully stir the slurry, without stirring dead angles, and can ensure the quality of the finally produced batteries.

Description

Technical Field

[0001] The present invention relates to the technical field of sodium-ion battery processing, and more specifically, to a stirring device for sodium-ion battery slurry. Background Art

[0002] With the vigorous development of the new energy industry, in addition to the mainly used lithium-ion batteries, sodium-ion batteries are also booming. The principle of sodium-ion batteries is similar to that of lithium batteries, relying on the reversible migration of sodium ions between the positive and negative electrodes to achieve the charging and discharging of the battery.

[0003] During the production process of sodium-ion batteries, it is necessary to stir and mix the slurry, and a special stirring device is required for this process. However, the existing stirring devices have the following defects:

[0004] Although the existing stirring devices all have a stirring shaft and stirring blades, the stirring blades and the stirring shaft are fixedly installed, resulting in easy emergence of stirring dead angles during the stirring process, which affects the quality of the subsequent produced sodium-ion batteries. Summary of the Invention

[0005] The purpose of the present invention is to provide a stirring device for sodium-ion battery slurry to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A stirring device for sodium-ion battery slurry includes a processing tank, a stirring shaft, a power element, a feed funnel, and a sealing cover. The number of the feed funnels is at least one and is arranged on the processing tank. The sealing cover is movably arranged on the feed funnel. The stirring shaft is movably arranged in the processing tank. The power element is arranged on the processing tank and its output end is connected to the stirring shaft. The stirring device further includes:

[0008] A controller, arranged on the processing tank;

[0009] A plurality of movable rods, annularly distributed around the stirring shaft, and one end of the movable rod is hinged to the stirring shaft;

[0010] An installation rod, one end of which is movably arranged on the stirring shaft. A counterweight seat is movably sleeved on the movable rod, and the counterweight seat is movably connected to the other end of the installation rod. A triangular structure is formed among the installation rod, the movable rod, and the stirring shaft;

[0011] Stirring blades, arranged on the installation rod; and

[0012] A gear shifting module, arranged on the processing tank and connected to the stirring shaft, for adjusting the actual working power of the power element; wherein

[0013] The gear shifting module at least includes:

[0014] A gear adjustment box, arranged on the processing box;

[0015] Shift bars, which are in multiple numbers and are arranged around the shift box; and

[0016] The conductive head is movably arranged in the gear adjustment box and connected to the stirring shaft, and the gear bar is located on the moving path of the conductive head.

[0017] A further technical solution of the present application is that the stirring blade is wavy.

[0018] A further technical solution of the present application: the gear shifting module further includes a turntable, a gear ring, a gear seat, gear teeth and a disengagement unit;

[0019] The turntable is movably arranged in the gear shifting box, the gear ring is arranged on the outer side of the turntable and the two are arranged concentrically, the conductive head is located on the gear ring, the teeth are connected to the turntable through the gear seat, the teeth and the gear ring are meshed, and the disengagement unit is arranged between the gear seat and the gear shifting box. When the teeth move to the set position, they can be disengaged from the gear ring through the disengagement unit.

[0020] A further technical solution of the present application is as follows: the tooth seat and the turntable are hinged and a torsion spring is provided at the hinge; the disengagement unit comprises a resistance bar and an inclined surface; the resistance bar is an incomplete ring; the inclined surface is formed on the tooth seat; and the resistance bar is located on the moving path of the inclined surface.

[0021] The present application has a further technical solution: a sliding bar is movably arranged on the mounting rod, scraping bars are equidistantly arranged on the sliding bar, the scraping bar and the stirring blade are slidably matched, and the sliding bar is movably connected to the stirring shaft through a push rod.

[0022] The present application has a further technical solution: a sleeve is provided on the stirring shaft, a plurality of movable seats are arranged on the sleeve, the movable seat and the sleeve are slidably matched, the movable seat and the end of the mounting rod away from the counterweight seat are movably connected, and the processing box is also provided with a positioning module for adjusting the position of the movable seat on the sleeve.

[0023] The present application has a further technical solution: the positioning module includes a positioning box and a plurality of electromagnets, the positioning box is arranged in a processing box, a plurality of electromagnet rings are arranged in the positioning box, the magnetic properties of two adjacent electromagnets change evenly, and each of the movable seats is provided with a magnet block.

[0024] Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0025] The embodiment of the present invention sets a gear module and a position adjustment module, and under the action of centrifugal force, by continuously changing the rotation speed of the stirring shaft and adjusting the position of the movable seat on the sleeve, the angle between the stirring blade and the stirring shaft can be continuously changed. Compared with the traditional fixed stirring blade, the present device can use dynamic stirring blades to fully stir the slurry without any stirring dead angle, thereby ensuring the quality of the final produced battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the structure of a stirring device for sodium ion battery slurry in an embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure enlarged at A in the stirring device for sodium ion battery slurry in an embodiment of the present invention;

[0028] Figure 3 This is a schematic structural diagram of a gear adjustment module in a stirring device for sodium ion battery slurry in an embodiment of the present invention;

[0029] Figure 4 This is a schematic structural diagram of a position adjustment module in a stirring device for sodium ion battery slurry in an embodiment of the present invention;

[0030] Figure 5 Schematic diagram of the structure of the tooth seat and teeth in the stirring device for sodium ion battery slurry in an embodiment of the present invention.

[0031] Explanation of the symbols in the schematic diagram:

[0032] 1-processing box, 2-stepping motor, 3-stirring shaft, 4-controller, 5-feeding funnel, 6-sealing cover, 7-movable rod, 8-counterweight seat, 9-mounting rod, 10-stirring blade, 11-scraping bar, 12-push rod, 13-sliding bar, 14-gear adjustment module, 141-gear adjustment box, 142-gear bar, 143-tooth ring, 144-contact bar, 145-turntable, 146-conductive head, 147-tooth, 148-tooth seat, 149-inclined surface, 15-position adjustment module, 151-position adjustment box, 152-electromagnet, 16-sleeve seat, 17-moving seat, 18-magnet block. Implementation

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The present invention is further described below in combination with the embodiments.

[0034] See alsoFigures 1-5 , in an embodiment of the present application, a stirring device for a sodium-ion battery slurry includes a processing tank 1, a stirring shaft 3, a power element, a feed funnel 5, and a sealing cover 6. The number of the feed funnels 5 is at least one and is arranged on the processing tank 1. The sealing cover 6 is movably arranged on the feed funnel 5. The stirring shaft 3 is movably arranged in the processing tank 1. The power element is arranged on the processing tank 1 and its output end is connected to the stirring shaft 3. The stirring device further includes:

[0035] A controller 4, arranged on the processing tank 1;

[0036] A plurality of movable rods 7, which are annularly distributed around the stirring shaft 3. One end of the movable rod 7 is hinged to the stirring shaft 3;

[0037] A mounting rod 9, one end of which is movably arranged on the stirring shaft 3. A counterweight seat 8 is movably sleeved on the movable rod 7. The counterweight seat 8 is movably connected to the other end of the mounting rod 9. A triangular structure is formed among the mounting rod 9, the movable rod 7, and the stirring shaft 3;

[0038] Stirring blades 10, arranged on the mounting rod 9; and

[0039] A gear shifting module 14, arranged on the processing tank 1 and connected to the stirring shaft 3, for adjusting the actual working power of the power element; wherein

[0040] The gear shifting module 14 at least includes:

[0041] A gear shifting box 141, arranged on the processing tank 1;

[0042] A plurality of gear shifting bars 142, which are annularly distributed on the shifting box 151; and

[0043] A conductive head 146, movably arranged in the gear shifting box 141 and connected to the stirring shaft 3. The gear shifting bar 142 is located on the moving path of the conductive head 146.

[0044] It should be particularly noted that the power element can be a stepping motor 2 or a servo motor. In this embodiment, the power element is preferably a stepping motor 2. The stepping motor 2 is arranged on the processing tank 1 and its output end is connected to the stirring shaft 3. As for the specific model of the stepping motor 2, no specific limitation is made here.

[0045] Exemplarily in this embodiment, the stirring blades 10 are wavy.

[0046] In actual application, the sealing cover 6 is opened to pour the battery slurry into the processing box 1, and the controller 4 is used to control the stepper motor 2 to be powered on and rotated, driving the stirring shaft 3 to rotate. Under the action of centrifugal force, the counterweight seat 8 can be driven to move along the movable rod 7, thereby realizing the angle adjustment between the stirring blade 10 and the stirring shaft 3, and while the stirring shaft 3 rotates, the conductive head 146 can be driven to rotate synchronously and successively contact the gear bar 142 at different positions, thereby realizing the adjustment of the rotation speed of the stepper motor 2 and the stirring shaft 3, indirectly realizing the continuous change of the centrifugal force exerted on the counterweight seat 8, thereby making the angle between the stirring blade 10 and the stirring shaft 3 continuously change, thereby improving the stirring effect of the slurry, and by setting a wavy stirring blade 10, the contact area between the stirring blade 10 and the slurry can be increased, thereby improving the stirring effect.

[0047] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As another preferred embodiment of the present application, the gear shifting module 14 further includes a rotating disk 145, a gear ring 143, a gear seat 148, teeth 147 and a disengagement unit;

[0048] The turntable 145 is movably arranged in the gear shifting box 141, the gear ring 143 is arranged on the outer side of the turntable 145 and the two are arranged concentrically, the conductive head 146 is located on the gear ring 143, the teeth 147 are connected to the turntable 145 through the gear seat 148, the teeth 147 and the gear ring 143 are meshed, and the disengagement unit is arranged between the gear seat 148 and the gear shifting box 141. When the teeth 147 moves to the set position, it can be disengaged from the gear ring 143 through the disengagement unit.

[0049] In this exemplary embodiment, the tooth seat 148 and the turntable 145 are hinged and a torsion spring is provided at the hinge. The disengagement unit includes a contact bar 144 and an inclined surface 149. The contact bar 144 is an incomplete ring body. The inclined surface 149 is formed on the tooth seat 148, and the contact bar 144 is located on the moving path of the inclined surface 149.

[0050] When the stirring shaft 3 drives the rotating disk 145 to rotate, the teeth 147 and the tooth seat 148 can be driven to rotate synchronously. Figure 3In the state shown, the toothed teeth 147 and the toothed ring 143 are meshed with each other, thereby driving the toothed ring 143 and the conductive head 146 to rotate a certain angle, and when the inclined surface 149 and the abutment bar 144 meet and collide with each other, the toothed seat 148 and the toothed teeth 147 can be driven to rotate, thereby disengaging from the toothed ring 143. The whole process is realized in that the turntable 145 follows the stirring shaft 3 to rotate one circle, driving the toothed ring 143 and the conductive head 146 to rotate a fixed angle, so that the conductive head 146 successively meets the gear bar 142 at different positions, and continuously realizes the adjustment of the speed of the stepper motor 2. Under the centrifugal force of the counterweight seat 8, the angle between the stirring blade 10 and the stirring shaft 3 can be continuously adjusted to fully stir the slurry at different positions in the processing box 1. Compared with the traditional fixed stirring blade 10, the present device can use a dynamic stirring blade 10 to fully stir the slurry, and there will be no stirring dead angle, which can ensure the quality of the final produced battery.

[0051] See also Figure 1 , Figure 2 as well as Figure 4 As another preferred embodiment of the present application, a sliding bar 13 is movably provided on the mounting rod 9, and scraper bars 11 are equidistantly provided on the sliding bar 13. The scraper bars 11 and the stirring blades 10 are slidably matched, and the sliding bar 13 is movably connected to the stirring shaft 3 through the push rod 12.

[0052] In a specific case in this embodiment, a sleeve 16 is provided on the stirring shaft 3, and a plurality of movable seats 17 are arranged around the sleeve 16. The movable seat 17 and the sleeve 16 are slidably matched, and the movable seat 17 and the end of the mounting rod 9 away from the counterweight seat 8 are movably connected. The processing box 1 is also provided with a positioning module 15 for adjusting the position of the movable seat 17 on the sleeve 16.

[0053] In another specific case of this embodiment, the positioning module 15 includes a positioning box 151 and a plurality of electromagnets 152. The positioning box 151 is arranged in the processing box 1, and the plurality of electromagnets 152 are distributed in the positioning box 151. The magnetic properties of two adjacent electromagnets 152 change evenly, and each of the movable seats 17 is provided with a magnet block 18.

[0054] It should be noted that the positioning unit is not limited to the cooperation between the electromagnet 152 and the magnet block 18 to adjust the position of the movable seat 17, and a linear motor or an electric cylinder may also be used instead, which is not specifically limited here.

[0055] When the angle between the mounting rod 9 and the stirring shaft 3 is constantly changing, the push rod 12 can be used to drive the sliding bar 13 and the scraping bar 11 to continuously reciprocate relative to the stirring blade 10, so as to clean the material on the stirring blade 10, and when the stirring shaft 3 rotates, it can drive the magnet block 18 to intermittently meet and repel the electromagnet 152, and since the magnetism of the electromagnet 152 at different positions is different, the moving seat 17 at each position moves at a different distance relative to the sleeve seat 16, thereby realizing the adjustment of the position of the stirring blade 10 and further improving the stirring effect of the battery slurry.

[0056] How this application works:

[0057] Open the sealing cover 6 and pour the battery slurry into the processing box 1. The controller 4 controls the stepper motor 2 to be powered on and rotated, driving the stirring shaft 3 to rotate. Under the action of centrifugal force, the counterweight seat 8 can be driven to move along the movable rod 7, so as to adjust the angle between the stirring blade 10 and the stirring shaft 3. In the process of the stirring shaft 3 driving the turntable 145 to rotate, the teeth 147 and the tooth seat 148 can be driven to rotate synchronously. Figure 3 In the state shown, the toothed teeth 147 and the toothed ring 143 are meshed with each other, thereby driving the toothed ring 143 and the conductive head 146 to rotate at a certain angle, and when the inclined surface 149 and the abutment bar 144 meet and abut, the toothed seat 148 and the toothed teeth 147 can be driven to rotate, thereby disengaging from the toothed ring 143. The whole process is realized in that the turntable 145 rotates one circle following the stirring shaft 3, driving the toothed ring 143 and the conductive head 146 to rotate at a fixed angle, so that the conductive head 146 successively meets the gear bars 142 at different positions, and continuously realizes the rotation speed adjustment of the stepping motor 2. Under the centrifugal force of the counterweight seat 8, the stirring blade 10 and the stirring shaft can be continuously adjusted. 3, fully stir the slurry at different positions in the processing box 1. When the angle between the mounting rod 9 and the stirring shaft 3 is constantly changing, the push rod 12 can be used to drive the sliding bar 13 and the scraping bar 11 to move back and forth relative to the stirring blade 10, so as to clean the material on the stirring blade 10, and when the stirring shaft 3 rotates, it can drive the magnet block 18 to intermittently meet and repel the electromagnet 152, and because the magnetism of the electromagnet 152 at different positions is different, the moving seat 17 at each position moves at a different distance relative to the sleeve seat 16, thereby adjusting the position of the stirring blade 10 and further improving the stirring effect of the battery slurry. Compared with the traditional fixed stirring blade 10, the present device can use the dynamic stirring blade 10 to fully stir the slurry, without any stirring dead angle, and can ensure the quality of the final produced battery.

[0058] The above has schematically described the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention creation, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

[0059] In addition, it should be understood that although this specification is described according to implementation manners, not every implementation manner only includes an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A stirring device for a sodium-ion battery slurry, comprising a processing tank, a stirring shaft, a power element, a feed hopper and a sealing cover. The number of the feed hoppers is at least one and is arranged on the processing tank. The sealing cover is movably arranged on the feed hopper. The stirring shaft is movably arranged in the processing tank. The power element is arranged on the processing tank and its output end is connected to the stirring shaft. It is characterized in that, The stirring device further includes: a controller disposed on the processing tank; a plurality of movable rods annularly arranged around the stirring shaft, one end of each movable rod being hinged to the stirring shaft; a mounting rod, one end of which is movably disposed on the stirring shaft, a counterweight seat being movably sleeved on the movable rod, and the counterweight seat being movably connected to the other end of the mounting rod, a triangular structure being formed among the mounting rod, the movable rod and the stirring shaft; stirring blades disposed on the mounting rod; and a gear shifting module disposed on the processing tank and connected to the stirring shaft for adjusting the actual working power of the power element; wherein the gear shifting module at least includes: a gear shifting box disposed on the processing tank; a plurality of gear shifting bars annularly arranged on the gear shifting box; and a conducting head movably disposed in the gear shifting box and connected to the stirring shaft, the gear shifting bars being located on the moving path of the conducting head. The gear shifting module further includes a turntable, a gear ring, a gear seat, gear teeth and a disengaging unit; the turntable is movably disposed in the gear shifting box, the gear ring is disposed outside the turntable and they are concentrically arranged, the conducting head is located on the gear ring, the gear teeth are connected to the turntable through the gear seat, the gear teeth are meshed with the gear ring, the disengaging unit is disposed between the gear seat and the gear shifting box, and when the gear teeth move to a set position, the gear teeth can be disengaged from the gear ring through the disengaging unit; the gear seat and the turntable are hinged and a torsion spring is provided at the hinge, the disengaging unit includes a resisting strip and an inclined surface, the resisting strip is an incomplete ring body, the inclined surface is formed on the gear seat, and the resisting strip is located on the moving path of the inclined surface.

2. The stirring device for a sodium-ion battery slurry according to claim 1, characterized in that, The stirring blades are wavy.

3. The stirring device for a sodium-ion battery slurry according to claim 1, characterized in that, A sliding strip is movably disposed on the mounting rod, scraping strips are equidistantly arranged on the sliding strip, the scraping strips are in sliding fit with the stirring blades, and the sliding strip is movably connected to the stirring shaft through a push rod.

4. The stirring device for a sodium-ion battery slurry according to claim 1, characterized in that, A sleeve seat is provided on the stirring shaft, a plurality of moving seats are annularly arranged on the sleeve seat, the moving seats are in sliding fit with the sleeve seat, the moving seats are movably connected to the end of the mounting rod far away from the counterweight seat, and a position adjusting module is further provided on the processing tank for adjusting the position of the moving seats on the sleeve seat.

5. The stirring device for a sodium-ion battery slurry according to claim 4, characterized in that, The position adjusting module includes a position adjusting box and a plurality of electromagnets, the position adjusting box is disposed in the processing tank, the plurality of electromagnets are annularly arranged in the position adjusting box, the magnetism of adjacent two electromagnets changes uniformly, and a magnet block is provided on each moving seat.

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