CN219252410U

CN219252410U - Sodium ion battery negative electrode raw material stirring device

Info

Publication number: CN219252410U
Application number: CN202320549073.0U
Authority: CN
Inventors: 石坚; 刘景东
Original assignee: Shenzhen Bona New Energy Technology Co ltd
Current assignee: Shenzhen Bona New Energy Technology Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-06-27
Anticipated expiration: 2033-03-21

Abstract

The utility model discloses a stirring device for a sodium ion battery cathode raw material, which relates to the field of battery electrode preparation and comprises a stirring barrel (5), a stirring mechanism rotatably arranged in the stirring barrel (5) and a driving mechanism (4) arranged at the top of the stirring barrel (5) and used for driving the stirring mechanism to rotate; the stirring mechanism comprises a first stirring shaft (1), a first stirring blade (11) arranged on the first stirring shaft (1), a second stirring shaft (2) penetrating through the first stirring shaft (1) and capable of lifting relative to the first stirring shaft (1), a second stirring blade (21) arranged on the second stirring shaft (2) and a lifting mechanism (3) arranged at the top of the stirring barrel (5) and used for periodically and reciprocally lifting the second stirring shaft (2). According to the utility model, the lifting mechanism drives the second stirring blade to lift, so that the flow of raw materials can be realized at the upper layer and the lower layer, the stirring effect is better, the agglomeration is avoided, and the production efficiency can be effectively improved.

Description

Sodium ion battery negative electrode raw material stirring device

Technical Field

The utility model relates to the field of sodium ion battery electrode preparation, in particular to a sodium ion battery negative electrode raw material stirring device.

Background

A Sodium-ion battery (rechargeable battery) is a secondary battery that mainly relies on Sodium ions to move between a positive electrode and a negative electrode to operate, similar to the principle of lithium-ion battery operation. When the sodium ion battery raw material is prepared, the sodium ion battery raw material needs to be mixed and stirred, superfine powder is included in the sodium ion battery raw material, aggregation is easy to occur, the stirring effect of the existing stirring device on the sodium ion battery raw material is poor, uniform mixing and stirring of the sodium ion battery raw material are difficult to achieve, the superfine powder is easy to cause re-aggregation, and the quality of the produced sodium ion battery is further affected.

Patent document No. 202220888914.6 discloses a sodium ion battery electrode raw material stirring device, which comprises a first stirring assembly positioned at the center and second stirring assemblies positioned at two sides, wherein the purpose of fully stirring and mixing raw materials is realized by combining a plurality of stirring assemblies. Although the device solves the problems to a certain extent, the device can not well solve the problem of stirring of the upper layer and the lower layer, and the upper layer and the lower layer adopt the same speed for stirring, so that the fluidity of the raw materials of the upper layer and the lower layer is poor to a certain extent, and the mixing effect is poor.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a sodium ion battery cathode raw material stirring device which can increase the flow of upper and lower layers of raw materials and stir more uniformly.

The technical scheme adopted for solving the technical problems is as follows: the stirring device for the sodium ion battery cathode raw material comprises a stirring barrel, a stirring mechanism rotatably arranged in the stirring barrel and a driving mechanism arranged at the top of the stirring barrel and used for driving the stirring mechanism to rotate;

the stirring mechanism comprises a first stirring shaft, a first stirring blade arranged on the first stirring shaft, a second stirring shaft penetrating through the first stirring shaft and capable of lifting relative to the first stirring shaft, a second stirring blade arranged on the second stirring shaft, and a lifting mechanism arranged at the top of the stirring barrel and used for periodically and reciprocally lifting the second stirring shaft.

Further, the first stirring shaft is of a hollow structure, and a lifting slideway for lifting the second stirring shaft is axially formed in the side wall of the first stirring shaft.

Further, the lifting slide way is centrosymmetric;

the second stirring paddles are arranged on the second stirring shaft at intervals along the axial direction, are arranged in a central symmetry mode, and extend out along the lifting slide way.

Further, the first stirring paddles are arranged on the outer side wall of the first stirring shaft at intervals along the axial direction, and the first stirring paddles are arranged in a central symmetry mode.

Further, the included angle between the second stirring blade and the first stirring blade is 90 degrees.

Further, the upper end of the first stirring shaft penetrates through the top of the stirring barrel, the upper end of the first stirring shaft is provided with a toothed ring, the power output end of the driving mechanism is provided with a first gear, and the first gear is meshed with the toothed ring.

Further, the lifting mechanism comprises a fixed seat arranged at the top of the stirring barrel, a sleeve arranged on the fixed seat, an annular chute arranged along the outer wall of the sleeve and a limit column arranged at the top of the stirring barrel;

the annular chute is provided with an inclined chute wall, and one end of the limiting column is fixed while the other end is limited in the chute, so that the second stirring shaft is lifted under the cooperation of the limiting column and the annular chute.

This sodium ion battery negative pole raw and other materials agitating unit, establish at the inside second (mixing) shaft of first (mixing) shaft including first (mixing) shaft and cover, this second (mixing) shaft can realize the lift of second (mixing) shaft through the elevating system at cauldron body top, and this second (mixing) shaft goes up and down and makes second stirring paddle rise relatively or reduce, and then can be applied to the material stirring of different positions and mix. Compared with the prior art, the stirring device has the advantages that the stirring assembly is added, the flow of raw materials can be realized at the upper layer and the lower layer, the stirring effect is better, agglomeration is avoided, the stirring blades are convenient to adjust, and the production efficiency is effectively improved.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic structural view of a stirring device for a sodium ion battery cathode raw material according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a stirring device for a negative electrode raw material of a sodium ion battery according to an embodiment of the present utility model;

FIG. 3 is a side view of a sodium ion battery negative electrode raw material stirring device according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view of a stirring mechanism according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a stirring mechanism according to an embodiment of the present utility model;

fig. 7 is a side view of an agitation mechanism according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a first stirring shaft; 11. a first stirring blade; 12. lifting slide ways; 13. a toothed ring; 2. a second stirring shaft; 21. a second stirring blade; 3. a lifting mechanism; 31. a fixing seat; 32. a sleeve; 33. an annular chute; 34. a limit column; 4. a driving mechanism; 41. a first gear; 5. stirring barrel.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings.

The stirring device for the sodium ion battery cathode raw material as shown in figures 1-7 comprises a stirring barrel 5, a stirring mechanism rotatably arranged in the stirring barrel 5 and a driving mechanism 4 arranged at the top of the stirring barrel 5 and used for driving the stirring mechanism to rotate;

the stirring mechanism comprises a first stirring shaft 1, a first stirring blade 11 arranged on the first stirring shaft 1, a second stirring shaft 2 penetrating through the first stirring shaft 1 and capable of lifting relative to the first stirring shaft 1, a second stirring blade 21 arranged on the second stirring shaft 2, and a lifting mechanism 3 arranged at the top of the stirring barrel 5 and used for periodically and reciprocally lifting the second stirring shaft 2.

This sodium ion battery negative pole raw and other materials agitating unit, including first (mixing) shaft 1 and cover establish at the inside second (mixing) shaft 2 of first (mixing) shaft 1, this second (mixing) shaft 2 can realize the lift of second (mixing) shaft 2 through the elevating system 3 at cauldron body top, and this second (mixing) shaft 2 goes up and down and makes second stirring paddle 21 rise relatively or reduce, and then can be applied to the material stirring of different positions and mix. According to the utility model, the lifting mechanism 3 is directly used for driving the second stirring blade 21 to lift, compared with the prior art, the stirring assembly is added, the device can realize the flow of raw materials at the upper layer and the lower layer, the stirring effect is better, the agglomeration is avoided, the stirring blade is convenient to adjust, and the production efficiency is effectively improved.

The first stirring shaft 1 is of a hollow structure, and a lifting slide way 12 for lifting the second stirring shaft 2 is arranged on the side wall of the first stirring shaft 1 along the axial direction.

In this embodiment, the lifting slideway 12 is centrosymmetric; the second stirring shafts 2 are provided with second stirring paddles 21 at intervals along the axial direction, the second stirring paddles 21 are arranged symmetrically at the center, and the second stirring paddles 21 extend out along the lifting slide way 12. The outer side wall of the first stirring shaft 1 is provided with first stirring paddles 11 at intervals along the axial direction, and the first stirring paddles 11 are arranged in a central symmetry manner. Preferably, the second stirring blade 21 makes an angle of 90 degrees with the first stirring blade 11.

The second stirring blade 21 and the first stirring blade 11 are set to have an included angle of 90 degrees, so that the stirring effect can be further improved, and of course, in other embodiments, the second stirring blade 21 and the first stirring blade 11 may have an included angle of other angles.

The upper end of the first stirring shaft 1 penetrates through the top of the stirring barrel 5, the upper end of the first stirring shaft is provided with a toothed ring 13, the power output end of the driving mechanism 4 is provided with a first gear 41, and the first gear 41 is meshed with the toothed ring 13.

The lifting mechanism 3 comprises a fixed seat 31 arranged at the top of the stirring barrel 5, a sleeve 32 arranged on the fixed seat 31, an annular chute 33 arranged along the outer wall of the sleeve 32 and a limit column 34 arranged at the top of the stirring barrel 5;

the annular chute 33 is provided with an inclined chute wall, and one end of the limiting column 34 is fixed while the other end is limited in the chute, so that the second stirring shaft 2 is lifted under the cooperation of the limiting column 34 and the annular chute 33.

In this embodiment, the annular chute 33 is used to cooperate with the limit post 34, and the sleeve 32 will follow to rotate when the first stirring shaft 1 drives the second stirring shaft 2 to rotate, at this time, because the limit post 34 is disposed in the sliding chute, the upper end surface of the limit post 34 will give upward force to the wall of the annular chute 33, and because the sliding chute has a slope, the limit post 34 will always cling to the upper end surface of the wall of the chute, so that the second stirring shaft 2 can be lifted. Further, since the sleeve 32 is annular, the second stirring shaft 2 can be lifted and lowered periodically.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. The stirring device for the sodium ion battery cathode raw material is characterized by comprising a stirring barrel (5), a stirring mechanism rotatably arranged in the stirring barrel (5) and a driving mechanism (4) arranged at the top of the stirring barrel (5) and used for driving the stirring mechanism to rotate;

the stirring mechanism comprises a first stirring shaft (1), a first stirring blade (11) arranged on the first stirring shaft (1), a second stirring shaft (2) penetrating through the first stirring shaft (1) and capable of lifting relative to the first stirring shaft (1), a second stirring blade (21) arranged on the second stirring shaft (2) and a lifting mechanism (3) arranged at the top of the stirring barrel (5) and used for periodically and reciprocally lifting the second stirring shaft (2).

2. The sodium ion battery cathode raw material stirring device according to claim 1, wherein the first stirring shaft (1) is of a hollow structure, and a lifting slide way (12) for lifting the second stirring shaft (2) is axially formed in the side wall of the first stirring shaft (1).

3. The sodium ion battery negative electrode raw material stirring device according to claim 2, wherein the lifting slide way (12) is centrosymmetric;

the second stirring paddles (21) are arranged on the second stirring shaft (2) at intervals along the axial direction, the second stirring paddles (21) are arranged symmetrically at the center, and the second stirring paddles (21) extend out along the lifting slide way (12).

4. The stirring device for the negative electrode raw material of the sodium ion battery according to claim 2, wherein the first stirring blades (11) are arranged on the outer side wall of the first stirring shaft (1) at intervals along the axial direction, and the first stirring blades (11) are arranged in a central symmetry manner.

5. The stirring device for sodium ion battery negative electrode raw material according to claim 4, wherein the second stirring blade (21) forms an angle of 90 degrees with the first stirring blade (11).

6. The sodium ion battery negative electrode raw material stirring device according to any one of claims 1 to 5, wherein the upper end of the first stirring shaft (1) penetrates through the top of the stirring barrel (5) and is provided with a toothed ring (13), the power output end of the driving mechanism (4) is provided with a first gear (41), and the first gear (41) is meshed with the toothed ring (13).

7. The stirring device for the negative electrode raw material of the sodium ion battery according to claim 1, wherein the lifting mechanism (3) comprises a fixed seat (31) arranged at the top of the stirring barrel (5), a sleeve (32) arranged on the fixed seat (31), an annular chute (33) arranged along the outer wall of the sleeve (32) and a limit column (34) arranged at the top of the stirring barrel (5);

the annular chute (33) is provided with an inclined chute wall, one end of the limiting column (34) is fixed, and the other end of the limiting column is limited in the chute, so that the second stirring shaft (2) ascends and descends under the cooperation of the limiting column (34) and the annular chute (33).