CN215996414U - Lithium battery slurry stirring host - Google Patents

Abstract

The utility model discloses a lithium battery slurry stirring host machine which comprises an outer barrel, a stirring inner barrel and a stirring paddle, wherein the stirring inner barrel is rotatably matched and arranged in the outer barrel and can be driven to rotate, the stirring paddle is eccentrically arranged in the inner barrel, the stirring paddle is rotatably matched and arranged at the top of the outer barrel and can be driven to rotate, and the stirring inner barrel is obliquely arranged. According to the utility model, the stirring paddle and the stirring inner barrel rotate and revolve relative to the stirring inner barrel, so that the stirring efficiency is greatly improved, no dead angle exists in the stirring process, and the stirring inner barrel is inclined for a certain angle to rotate, so that the lithium battery slurry forms an interlaced mixture material flow and an inverse mixture material flow with very high speed difference when being mixed, the lithium battery slurry is ensured to be uniform, and the slurry mixing effect is improved.

Description

Lithium battery slurry stirring host

Technical Field

The utility model relates to the technical field of lithium battery manufacturing, in particular to a lithium battery slurry stirring host.

Background

In the manufacturing process of the lithium battery, active substances, conductive carbon black, a dispersing agent, an adhesive, an additive and the like are added into a stirrer according to a certain proportion and sequence to form stable fixed suspension;

the existing stirring device is usually in a stirring mode with independent rotation of a stirring paddle, the stirring mode is low in stirring efficiency, and the stirring device has a stirring dead angle and cannot fully mix slurry.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a lithium battery slurry stirring host, and the stirring device greatly improves the stirring efficiency by the rotation of the stirring paddle and the rotation of the inner cylinder in combination with the revolution of the stirring paddle relative to the inner cylinder, and has no dead angle in the stirring process and improved slurry mixing effect.

The lithium battery slurry stirring host comprises an outer cylinder, a stirring inner cylinder and a stirring paddle, wherein the stirring inner cylinder is arranged in the outer cylinder in a rotating fit mode and can be driven to rotate, the stirring paddle is eccentrically arranged in the inner cylinder, and the stirring paddle is arranged at the top of the outer cylinder in a rotating fit mode and can be driven to rotate.

Further, the stirring inner cylinder is obliquely arranged.

Further, the stirring rake includes that the normal running fit installs in the (mixing) shaft at urceolus top, transmission cooperate in stirring epaxial last carousel and lower carousel and install in a plurality of last churning columns of last carousel up end and/or terminal surface down and install in a plurality of lower churning columns of lower carousel up end and/or terminal surface down, go up carousel and lower carousel and be located the stirring inner tube, the terminal surface of going up churning column and last carousel is the contained angle setting, the terminal surface of churning column and lower carousel is the contained angle setting down.

Further, still include main scraper, main scraper is fixed in the urceolus top, main scraper has scrapes the right angle limit that the limit constitutes by two, and one scrapes the limit and laminates in interior bobbin base portion, and another scrapes the limit and laminates in the inner tube interior circle.

Further, the stirring rake still includes the stirring scraper, the stirring scraper is installed in the lower terminal surface of carousel down, set for the distance has between stirring scraper bottom and the stirring inner tube bottom, go up the column stirrer and install in the up end of carousel, the column stirrer is installed in the up end of carousel down.

Further, the upper ends of the upper stirring column and the lower stirring column are in a truncated cone shape with a small upper part and a big lower part.

Further, go up the carousel and include the lantern ring and be radial connection in a plurality of last branch of last lantern ring excircle, it cooperates the overcoat on the (mixing) shaft to go up lantern ring transmission, go up the churning post and install on last branch, the lower carousel includes down the lantern ring and is radial connection in a plurality of lower branch of lantern ring excircle down, the churning post is installed under on branch, lantern ring transmission cooperation overcoat is on the (mixing) shaft down.

Further, the upper support rods and the lower support rods are arranged in a staggered mode in the circumferential direction.

Further, the upper and lower agitation columns extend axially.

Further, the lower rotating disc is arranged on the stirring shaft in an axially adjustable mode.

The utility model has the beneficial effects that:

according to the utility model, the stirring paddle and the stirring inner barrel rotate and revolve relative to the stirring inner barrel, so that the stirring efficiency is greatly improved, no dead angle exists in the stirring process, and the stirring inner barrel is inclined for a certain angle to rotate, so that the lithium battery slurry forms an interlaced mixture material flow and an inverse mixture material flow with very high speed difference when being mixed, the lithium battery slurry is ensured to be uniform, and the slurry mixing effect is improved.

According to the utility model, the upper rotary disc is matched with the upper stirring column to form a stirring effect on the upper space, the lower rotary disc is matched with the lower stirring column to form a stirring column effect on the space between the lower rotary disc and the upper rotary disc, and the stirring scraper is used for forming a stirring effect on the space between the lower rotary disc and the bottom of the stirring inner cylinder, namely, the stirring paddle with the structure is used for comprehensively forming a good stirring effect on the upper space, the middle space and the lower space in the stirring cylinder, and the stirring effect and the stirring efficiency can be improved through the stirring mode of rotating the rotary disc for stirring and circumferential cutting of the stirring column; in addition, the upper stirring column and the lower stirring column are provided with the conical inclined planes, so that in the stirring process, the upper stirring column and the lower stirring column have a circumferential horizontal effect on the slurry and have an axial upward acting force on the slurry, the acted slurry gradually moves from bottom to top, and other slurry which is not acted fills a cavity formed by the moved slurry, and the operation is repeated in a cycle, so that the whole slurry forms a reciprocating operation gradually from bottom to top, and the stirring effect is greatly improved.

Drawings

The utility model is further described below with reference to the figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the structure of a stirring paddle;

FIG. 4 is a schematic top view of the stirring paddle;

Detailed Description

As shown in the figure: the lithium battery slurry stirring host computer of this embodiment, including urceolus 1, stirring inner tube 2 and stirring rake, the stirring inner tube normal running fit is installed in the urceolus and can be rotated by the drive, the stirring rake off-centre sets up in the inner tube, the stirring rake normal running fit is installed in the urceolus top and can be rotated by the drive.

The eccentric arrangement means that the axis of the stirring paddle is parallel to and does not coincide with the axis of the stirring inner cylinder; the stirring paddle penetrates through the cover to be installed in the bearing seat in a rotating fit mode and is in transmission fit with an output shaft of the water-cooled permanent magnet variable frequency speed regulating motor; the lower end face of the machine cover is provided with an annular groove, the upper end of the stirring inner cylinder is open and is positioned in the annular groove, and the annular groove is in rotating fit with the stirring inner cylinder and is used for supporting and sealing the upper end of the stirring inner cylinder, so that the vibration phenomenon at the upper end of the stirring inner cylinder can be improved; in addition, a driving gear 13 and a driven gear 14 which are meshed with each other are arranged on the bottom plate, wherein the driving gear is in transmission fit with the output end of a speed reducer 15, the input end of the speed reducer is in transmission fit with the output shaft of the motor, the driven gear is coaxially arranged with the stirring inner cylinder, the stirring inner cylinder is fixed on the upper end face of the driven gear, the driven gear is installed on the bottom plate in a rotating fit manner, a bearing can be arranged between the driven gear and the bottom plate, and the driven gear is driven to rotate through the driving gear so as to drive the stirring inner cylinder to rotate; wherein the stirring inner tube is driven clockwise rotation, and the stirring rake is driven clockwise and anticlockwise rotation in turn at a high speed, stirring rake and the rotation of stirring inner tube, and the relative stirring inner tube revolution of stirring rake has improved stirring efficiency greatly, and the stirring in-process does not have the dead angle, has improved thick liquids and has mixed the effect.

In this embodiment, the stirring inner cylinder is disposed obliquely. The inclined arrangement specifically means that the axial direction of the stirring inner barrel and the vertical direction form an included angle, as shown in a combined drawing 1, the bottom plate 1b is obliquely arranged on the rack 16, the outer barrel and the stirring inner barrel are arranged on the bottom plate to automatically form an inclined arrangement state, the stirring inner barrel is inclined for a certain angle to rotate, so that lithium battery slurry forms staggered mixture material flow and reverse mixture material flow with high speed difference when being mixed, and the lithium battery slurry is ensured to be uniform and free of dead angles.

In this embodiment, the stirring rake includes that the normal running fit installs in the (mixing) shaft 4 at urceolus top, transmission cooperation stir epaxial last carousel 5 and lower carousel 6 and install in a plurality of last churning columns 7 of last carousel up end and/or terminal surface down and install in a plurality of lower churning columns 8 of lower carousel up end and/or terminal surface down, go up the carousel and be located the stirring inner tube with lower carousel, it is the contained angle setting with the terminal surface of last carousel 5 to go up the churning column, the terminal surface of churning column 8 and lower carousel 2 is the contained angle setting down. The upper end surface and the lower end surface refer to two end surfaces which correspond to each other in the axial direction; the upper stirring column 7 can be independently arranged on the upper end surface or the lower end surface of the upper rotating disc, or the upper stirring column 7 can be simultaneously arranged on the upper end surface and the lower end surface of the upper rotating disc; the meaning of the lower rotary table mounted on the upper end surface and/or the lower end surface is similar to that of the lower rotary table, and detailed description is omitted; the arrangement of the upper stirring column and the end face of the upper rotary disc 5 at an included angle means that the axis of the upper stirring column is intersected with the end face of the upper rotary disc and has a certain included angle, and the arrangement of the included angle between the stirring column 5 and the end face of the lower rotary disc 2 is similar to that described above; wherein the included angle between the upper stirring column and the end surface of the upper rotary table 5 and the included angle between the lower stirring column 8 and the end surface of the lower rotary table 2 are theoretically between 0 and 180 degrees, and preferably between 45 and 135 degrees; wherein (mixing) shaft 4 passes cover normal running fit and installs in bearing frame 11, goes up the carousel and is rotated and drive stirring post and lower stirring post rotation with the lower carousel, and then forms good stirring effect to the position in upper portion space and lower part space in the stirring inner tube, has great stirring space, does benefit to the effect space of increase in the stirring inner tube, and the stirring mode of accessible carousel rotation stirring and stirring post circumference cutting, improves stirring effect.

In this embodiment, still include main scraper 3, main scraper is fixed in the urceolus top, main scraper has the right angle limit that constitutes by two edges of scraping, and one scrapes the edge and laminates in the inner tube bottom, and another scrapes the edge and laminates in the inner circle of inner tube. Combine fig. 1 and fig. 2 to show, main scraper accessible pole setting is fixed on cover 1c, wherein the main part of main scraper is the circular arc and combines, circle tangent laminating in main scraper arc outer end side and the stirring inner tube, for subsequent maintenance, there is the blade main scraper arc outer end side through bolt fastening, the blade is regarded as one of them to scrape the limit and is stirred the interior tangent laminating of circle of inner tube, in addition the bottom of main scraper is regarded as another and scrapes limit and stirring inner tube bottom laminating, two are scraped the limit and are the right angle form, can effectually strike off the thick liquids of adhesion in inner tube bottom border department, can prevent reliably that lithium electricity thick liquids adhesion is in the bottom of stirring inner tube, lateral wall and dead angle department, main scraper also does benefit to the churning of thick liquids and mixes simultaneously.

In this embodiment, the stirring rake still includes stirring scraper 9, the stirring scraper is installed in the lower terminal surface of carousel down, set for the distance has between stirring scraper bottom and the stirring inner tube bottom, go up the upper end face of agitator column 7 installation in the carousel, agitator column 8 installs in the up end of carousel down. As shown in fig. 3, the upper rotating disk is matched with the upper stirring column to form a stirring effect on the upper space, the lower rotating disk is matched with the lower stirring column to form a stirring column effect on the space between the lower rotating disk and the upper rotating disk, and the stirring scraper is used for forming a stirring effect on the space between the lower rotating disk and the bottom of the stirring inner cylinder, so that the stirring paddle with the structure comprehensively forms a good stirring effect on the upper space, the middle space and the lower space in the stirring cylinder, and the stirring efficiency is improved; the stirring scraper is the columnar structure, and the side that the stirring scraper is facing rotation direction one side is the scarf, and the stirring scraper is provided with a plurality ofly and following carousel axis and is central symmetric distribution, and stirring scraper bottom has the small interval of settlement apart from stirring inner tube bottom, and this distance is between 2-5mm to form the material effect of scraping to stirring inner tube bottom, and at the transmission in-process, this stirring scraper is the spiral rotation mode relatively stirring inner tube bottom, does benefit to and improves stirring effect and effectively prevents the thick liquids adhesion.

In this embodiment, the upper ends of the upper stirring column 7 and the lower stirring column 8 are in the form of truncated cones having a small upper part and a large lower part. Last stirred column and lower stirred column of this structure have the significance to the effect of stirring, combine fig. 1 and fig. 3 to show, in the stirring process, go up the carousel and have the axial stirring effect of perpendicular to with lower carousel to the thick liquids, and go up stirred column and form circumference cutting action to the thick liquids down, also have the ascending effort of axial to the thick liquids simultaneously, the thick liquids that are used progressively along the axial from supreme removal down, and other not filled the cavity that the back thick liquids formed of moving up by the thick liquids that are used, in cycles, make whole thick liquids form from supreme gradual reciprocating motion down, the stirring effect has been improved greatly.

In this embodiment, go up the carousel and include the lantern ring 5a and be a plurality of upper struts 5b of radial connection in the lantern ring excircle of last lantern ring, go up lantern ring 5a transmission fit overcoat on the (mixing) shaft, go up churn post 7 and install on upper struts, the lower carousel includes the lantern ring down and is a plurality of lower struts 6b of radial connection in lantern ring excircle down, churn post 8 installs on lower struts, lantern ring transmission fit overcoat is on the (mixing) shaft down. As shown in fig. 4, the upper collar 5a is integrally formed with the upper support rod 5b, and the lower collar is integrally formed with the lower support rod 6 b; the upper support rods and the lower support rods are branched from the periphery of the upper rotating disc and are used as installation bases of the upper stirring column and the lower stirring column and are also used for horizontally stirring slurry, as shown in a combined graph of fig. 3 and 4, when the upper support rods and the lower support rods rotate, the slurry is radially thrown out through centrifugal force, and part of the slurry acted by the conical inclined planes of the upper stirring column and the lower stirring column axially moves upwards, so that the whole stirred slurry can axially move upwards from the bottom of the stirring inner cylinder along the periphery of the stirring shaft and then is radially thrown out by the centrifugal force, the whole slurry gradually moves downwards and returns to the bottom of the stirring inner cylinder, and the whole slurry moves upwards → radially outwards → axially downwards along the periphery of the inner wall of the stirring inner cylinder to the bottom of the stirring inner cylinder → gathers together to continue to axially move upwards after being close to the center of the stirring shaft, the whole circulation path forms a closed loop structure, which is beneficial to the full mixing of the slurry; and adjacent upper supporting rod on the last carousel has the V-arrangement space between, and adjacent lower bracing piece also has the V-arrangement space on corresponding lower carousel, and the setting in this V-arrangement space does benefit to upper supporting rod and lower bracing piece and plays its stirring effect, also does benefit to the reciprocal operation of thick liquids axial from supreme down gradually simultaneously to intensive mixing.

In this embodiment, the upper struts 5b and the lower struts 6b are arranged alternately in the circumferential direction. As shown in fig. 4, the arrangement structure makes the upper stirring column and the lower stirring column also have a circumferentially staggered structure, wherein the lower stirring column is opposite to the V-shaped space between the adjacent upper supporting rods, which is beneficial to making the slurry to move upwards in the V-shaped space above the upper stirring column, wherein one upper stirring column is installed on each upper supporting rod, one lower stirring column is installed on each lower supporting rod, each upper stirring column surrounds and is a ring, and each lower stirring column surrounds and is a ring.

In this embodiment, the upper stirring column 7 and the lower stirring column 8 extend axially. That is, the upper stirring column is arranged vertically to the end face of the upper turntable, and the lower stirring column is arranged vertically to the end face of the lower turntable; the structure enables the conical inclined surfaces of the corresponding stirring columns to apply axial upward acting force on the slurry so as to drive the slurry to reciprocate in the axial direction.

In this embodiment, the lower turntable is mounted on the stirring shaft in an axially adjustable manner. The axial adjustability means that the axial position of the lower rotary table can be adjusted, the axial position can be finely adjusted or can be adjusted within a larger axial size range, as shown in a combined drawing 3, an adjusting gasket 10 is arranged between the lower rotary table and the shaft shoulder at the upper part and the lower part of the stirring shaft, the lower rotary table is fixed at the shaft shoulder through a bolt, the axial position of the lower rotary table is adjusted through adjusting the thickness of the gasket, the distance between the bottom of the stirring scraper 9 and the bottom of the stirring inner cylinder is adjusted, the distance between the bottom of the stirring scraper and the bottom of the stirring inner cylinder is enabled to be within a set distance, a good material scraping effect is achieved, and the adhesion phenomenon of lithium battery slurry is improved; of course, the lower turntable can also adopt other structures to realize axial adjustability, which is not described in detail.

In this embodiment, the (mixing) shaft is the second grade ladder shaft structure at least, go up carousel 5 and lower carousel 6 and form axial positioning through two shoulders on the (mixing) shaft respectively, lower carousel is installed in the lower extreme of (mixing) shaft. Combine shown in fig. 3, the (mixing) shaft is second grade step axle structure, of course, the (mixing) shaft can set up to more multistage step axle structure according to its mounting structure, (mixing) shaft path section bottom is the lower tip for whole (mixing) shaft, it installs in the well footpath section of (mixing) shaft and fixes a position through the upper shaft shoulder to go up the carousel, it passes through the bolt fastening at well footpath section department to go up the carousel, the carousel is installed in the path section of (mixing) shaft and fixes a position through the lower shaft shoulder down, and the bottom of path section roughly with terminal surface parallel and level under the carousel down, perhaps path section lower extreme slightly surpasss terminal surface under the carousel, this structure can avoid the (mixing) shaft lower extreme to surpass the adjustment of carousel under the carousel overlength influence.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (10)

1. The utility model provides a lithium battery thick liquids stirring host computer which characterized in that: including urceolus, stirring inner tube and stirring rake, the stirring inner tube normal running fit is installed in the urceolus and can be rotated by the drive, the stirring rake off-centre sets up in the inner tube, the stirring rake normal running fit is installed in the urceolus top and can be rotated by the drive.

2. The lithium battery slurry stirring main machine according to claim 1, characterized in that: the stirring inner cylinder is obliquely arranged.

3. The lithium battery slurry stirring main machine according to claim 1, characterized in that: the stirring rake includes that the normal running fit installs in the (mixing) shaft at urceolus top, transmission cooperate in stirring epaxial last carousel and lower carousel and install in a plurality of last churning columns of carousel up end and/or terminal surface down and install in a plurality of lower churning columns of carousel up end and/or terminal surface down, go up the carousel and be located the stirring inner tube with lower carousel, the terminal surface of going up churning column and last carousel is the contained angle setting, the terminal surface of churning column and lower carousel is the contained angle setting down.

4. The lithium battery slurry stirring main machine according to claim 1, characterized in that: still include main scraper, main scraper is fixed in the urceolus top, main scraper has scrapes the right angle limit that the limit constitutes by two, and one scrapes the limit and laminates in interior bobbin base portion, and another scrapes the limit and laminates in interior round of tube.

5. The lithium battery slurry stirring main machine according to claim 3, characterized in that: the stirring paddle further comprises a stirring scraper, the stirring scraper is installed on the lower end face of the lower rotary table, the distance between the bottom of the stirring scraper and the bottom of the stirring inner cylinder is 2-5mm, the upper stirring column is installed on the upper end face of the rotary table, and the lower stirring column is installed on the upper end face of the lower rotary table.

6. The lithium battery slurry stirring main machine according to claim 5, characterized in that: the upper ends of the upper stirring column and the lower stirring column are in a truncated cone shape with a small upper part and a big lower part.

7. The lithium battery slurry stirring host machine according to claim 5 or 6, characterized in that: go up the carousel and include the lantern ring and be radial connection in a plurality of last branch of last lantern ring excircle, go up lantern ring transmission cooperation overcoat on the (mixing) shaft, go up the churning column and install on last branch, the lower carousel includes down the lantern ring and is radial connection in a plurality of lower branches of lantern ring excircle down, the churning column is installed down on branch, lantern ring transmission cooperation overcoat is on the (mixing) shaft down.

8. The lithium battery slurry stirring main machine according to claim 7, characterized in that: the upper supporting rods and the lower supporting rods are arranged in a staggered mode in the circumferential direction.

9. The lithium battery slurry stirring main machine according to claim 6, wherein: the upper stirring column and the lower stirring column extend axially.

10. The lithium battery slurry stirring main machine according to claim 5, characterized in that: the lower rotating disc is arranged on the stirring shaft in an axially adjustable mode.

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