CN221309610U - Rotary sealing structure of roller and lithium battery diaphragm extraction tank - Google Patents
Rotary sealing structure of roller and lithium battery diaphragm extraction tank Download PDFInfo
- Publication number
- CN221309610U CN221309610U CN202322909018.0U CN202322909018U CN221309610U CN 221309610 U CN221309610 U CN 221309610U CN 202322909018 U CN202322909018 U CN 202322909018U CN 221309610 U CN221309610 U CN 221309610U
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- Prior art keywords
- seal
- bearing
- cover plate
- frame
- roller
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 51
- 238000000605 extraction Methods 0.000 title claims abstract description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 11
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 239000003518 caustics Substances 0.000 abstract description 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- -1 polytetrafluoroethylene Polymers 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000010702 perfluoropolyether Substances 0.000 description 1
Landscapes
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a rotary sealing structure of a roller and a lithium battery diaphragm extraction tank, wherein the rotary sealing structure of the roller comprises a frame, a driving roller, a bearing assembly and a sealing assembly, two ends of the driving roller are connected with the frame through the bearing assembly, the sealing assembly is arranged at the joint of the bearing assembly and the frame, the sealing assembly is provided with an inner seal and an outer seal, the inner seal is arranged in the frame, and the outer seal is arranged outside the frame. The rotary sealing structure and the extraction tank adopt an inner-outer double-layer sealing structure, so that the bearing is prevented from being contacted with internal corrosive substances and external air, the sealing performance is effectively improved, and the service life of the bearing is prolonged.
Description
Technical Field
The utility model relates to the technical field of lithium battery processing, in particular to a rotary sealing structure of a roller and a lithium battery diaphragm extraction tank.
Background
The manufacturing process of the lithium-ion battery diaphragm is usually a wet diaphragm manufacturing process, the wet diaphragm extraction section process is one of important process sections of diaphragm production, and as the extraction section extractant dichloromethane has strong corrosiveness, the stability and the service life of a bearing influence the quality and the yield of a product diaphragm when an extraction section driving roller runs, and the main factor influencing the stability and the service life of the bearing is the corrosion of the dichloromethane on the bearing. In the production process, the driving roller is below the liquid level, the corresponding bearing is also below the liquid level, and how to improve the corrosion resistance and the sealing performance of the bearing in dichloromethane is one of the technical problems to be solved in a key way.
Therefore, it is desirable to provide a rotary seal structure for a roller and a separator extraction tank for a lithium battery, so as to solve the above-mentioned problems.
Disclosure of utility model
In order to overcome the defects of the prior art, the utility model provides the rotating sealing structure of the roller and the lithium battery diaphragm extraction tank, and the inner and outer double-layer sealing structure is adopted, so that the bearing is not contacted with internal corrosive substances and external air, the sealing performance of the bearing is effectively improved, and the service life of the bearing is prolonged.
The technical scheme adopted for solving the technical problems is as follows:
The utility model provides a rotary seal structure of roller, includes frame, drive roll, bearing assembly and seal assembly, the both ends of drive roll pass through bearing assembly with the frame is connected, seal assembly sets up the junction of bearing assembly and frame, just seal assembly is provided with interior seal and external seal, interior seal set up in the inside of frame, external seal set up in the outside of frame.
As a preferable technical scheme of the utility model, the bearing assembly is provided with a bearing and a bearing seat, the bearing is connected to the end part of the driving roller, and the bearing seat is arranged outside the bearing.
As an optimized technical scheme of the utility model, a flange is welded on the frame, the bearing seat is connected in the flange, and a flange sealing gasket is arranged between the flange and the bearing seat.
As a preferable technical scheme of the utility model, the inner seal is provided with a first inner cover plate and a second inner cover plate, the first inner cover plate and the second inner cover plate are sleeved on the driving roller, and the second inner cover plate is connected with the inner end of the bearing seat.
As a preferable technical scheme of the utility model, a framework sealing piece is arranged at the joint of the second inner cover plate and the driving roller, the first inner cover plate is pressed on the framework sealing piece, and an inner sealing gasket is arranged between the second inner cover plate and the bearing seat.
As a preferable technical scheme of the utility model, the outer seal is provided with a driving seal and a floating seal, the driving seal is arranged at one end of the frame, and the floating seal is arranged at the other end of the frame.
As a preferable technical scheme of the utility model, the driving seal is provided with a motor, a coupler, an adapter plate and a mounting shell, wherein the output end of the motor is connected with one end of the driving roller through the coupler, the mounting shell is arranged outside the coupler, one end of the mounting shell is connected with the outer end of the bearing seat, the other end of the mounting shell is connected with the adapter plate, and the adapter plate is connected with the motor.
As a preferable technical scheme of the utility model, a coupling sealing gasket is arranged at the joint of the coupling and the bearing seat.
As a preferable technical scheme of the utility model, the floating seal is provided with an outer cover plate, the outer cover plate is connected with the outer end of the bearing seat, and an outer sealing gasket is arranged between the outer cover plate and the bearing seat.
The utility model also provides a lithium battery diaphragm extraction tank, which is provided with the rotary sealing structure of the roller.
The beneficial effects of the utility model are as follows:
According to the utility model, the bearing is sealed at the inner side and the outer side of the bearing, the bearing is placed in a sealed space to form double-layer sealing, so that the bearing is not in corrosive liquid, the bearing can be prevented from contacting with external air, and the ceramic bearing is selected, so that the bearing has the characteristics of oil-free self-lubricating property, high corrosion resistance and the like, and compared with a conventional steel bearing, the bearing is strong in corrosion resistance and longer in service life; in addition, the sealing gasket with the structure can adopt a polytetrafluoroethylene sealing gasket, so that the sealing property can be effectively improved, and leakage of gas or liquid can be prevented.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic structural view of a rotary seal structure of the present utility model;
FIG. 2 is a schematic view of the driving seal of the present utility model;
FIG. 3 is a schematic view of the running seal of the present utility model.
Wherein the above figures include the following reference numerals:
1. A frame; 11. a flange; 12. a flange gasket; 2. a drive roll; 3. a bearing assembly; 31. a bearing; 32. a bearing seat; 4. a seal assembly; 41. an inner seal; 411. a first inner cover plate; 412. a second inner cover plate; 413. a skeletal seal; 414. an inner seal; 42. an outer seal; 43. driving and sealing; 431. a motor; 432. a coupling; 433. an adapter plate; 434. a mounting shell; 435. a coupling seal pad; 44. performing floating sealing; 441. an outer cover plate; 442. and an outer sealing gasket.
Detailed Description
The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the utility model can be interactively combined on the premise of no contradiction and conflict.
Referring to fig. 1, a rotary sealing structure of a roller comprises a frame 1, a driving roller 2, a bearing assembly 3 and a sealing assembly 4, wherein two ends of the driving roller 2 are connected to the frame 1 through the bearing assembly 4, so that the driving roller 2 can normally rotate and operate, the sealing assembly 4 is arranged at the joint of the bearing assembly 3 and the frame 1, the bearing can be sealed, meanwhile, the sealing assembly 4 is provided with an inner seal 41 and an outer seal 42, the inner seal 41 is arranged inside the frame 1, the outer seal 42 is arranged outside the frame 1, both inner and outer sides of the bearing are sealed, the bearing is prevented from being in corrosive liquid, contact with external air is avoided, corrosion resistance of the bearing is effectively improved, and service life of the bearing is prolonged.
Referring to fig. 1, in the embodiment of the present utility model, the bearing assembly 3 is provided with a bearing 31 and a bearing housing 32, the bearing 31 is connected to an end of the driving roll 2, and the bearing housing 32 is installed at an outside of the bearing 31 such that the bearing 31 can rotate within the bearing housing 32, thereby allowing the driving roll 2 to rotate; in addition, the bearing 31 is preferably a ceramic bearing, which has the characteristics of oil-free self-lubricity, high ceramic corrosion resistance and the like, has a longer service life than a conventional steel bearing, is lubricated by perfluoropolyether grease, has excellent chemical inertness, durability and low volatility in a chemical corrosive environment, and can effectively improve the corrosion resistance of the bearing.
Referring to fig. 1, in the embodiment of the present utility model, a flange 11 is welded on the frame 1, and a bearing seat 32 may be fixedly connected in the flange 11 by adopting a screw locking manner, so as to facilitate installation and replacement of the bearing; meanwhile, the flange sealing gasket 12 is arranged between the flange 11 and the bearing seat 32, the flange sealing gasket 12 is made of polytetrafluoroethylene, the tightness is good, and the sealing of the flange outer ring is realized.
Referring to fig. 1, in the embodiment of the present utility model, the inner seal 41 is provided with a first inner cover 411 and a second inner cover 412, the first inner cover 411 and the second inner cover 412 are sleeved on the driving roller 2, the second inner cover 412 is fixedly connected with the inner end of the bearing seat 32, the connection between the second inner cover 412 and the driving roller 2 is further provided with a skeleton oil seal 413, and the skeleton oil seal 413 is made of polytetrafluoroethylene, so that the tightness between the driving roller 2 and the cover is effectively improved; meanwhile, the first inner cover plate 411 is pressed on the second inner cover plate 412 to press the framework oil seal 413, so that the framework oil seal 413 is prevented from rotating axially; an inner sealing gasket 414 is further arranged between the second inner cover plate 412 and the bearing seat 32, so that the inner sealing of the bearing is effectively realized, the bearing is prevented from being corroded due to the contact of the bearing and liquid or gas in the frame, the inner sealing gasket 414 is made of polytetrafluoroethylene, the sealing effect is good, and the inner liquid or gas can be prevented from leaking.
Referring to fig. 2, in the embodiment of the present utility model, the outer seal 42 is provided with a driving seal 43 and a floating seal 44, the driving seal 43 is provided at one end of the frame 1, and the floating seal 44 is provided at the other end of the frame 1. Referring to fig. 2, the driving seal 43 is provided with a motor 431, a coupling 432, an adapter plate 433 and a mounting shell 434, wherein an output end of the motor 431 is connected with one end of the driving roller 2 through the coupling 432, and power is provided for the driving roller 2 so that the driving roller can normally rotate; the mounting shell 434 is arranged outside the coupling 432, so that the coupling 432 is prevented from being exposed outside, one end of the mounting shell 434 is connected with the outer end of the bearing seat 32 of the driving end, the other end of the mounting shell 434 is connected with the adapter plate 433, and then the adapter plate 433 is connected with the motor 431, so that the motor 431 is more firmly fixed, and meanwhile, the coupling 432 and the bearing 31 are sealed, so that the coupling is prevented from being contacted with outside air; a coupling seal 435 is also provided at the junction of the coupling 432 and the bearing housing 32, which is also made of polytetrafluoroethylene, so as to effectively improve the sealing effect.
Referring to fig. 3, in the embodiment of the present utility model, the floating seal 44 is provided with an outer cover plate 441, and the outer cover plate 441 is provided with a clamping structure protruding inwards, so that the clamping structure is just clamped in the bearing seat 32, and then the outer cover plate 441 and the bearing seat 32 are fixedly connected together by screwing, and meanwhile, an outer sealing gasket 442 is provided between the outer cover plate 441 and the bearing seat 32 for compression sealing, so that the bearing at the floating end of the active roller 2 is isolated from the external air, and the service life of the bearing is prolonged.
The utility model also provides a lithium battery diaphragm extraction tank, a plurality of passing rollers are arranged in the extraction tank, and the passing rollers are all installed by adopting a rotary sealing structure, so that the diaphragm passing rollers are sealed with the inner end and the outer end of the wall of the extraction tank in a double-layer manner, the rotary bearings at the two ends of the passing rollers can be isolated from outside air and liquid in the extraction tank, the corrosion resistance of the bearings is effectively improved, and the service life of the device structure is prolonged. The specific structure of the rotating seal structure of the passing roller refers to the above embodiments, and because the extraction tank adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and the equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.
Claims (10)
1. The utility model provides a pass rotatory seal structure of roller, its characterized in that includes frame, drive roll, bearing assembly and seal assembly, the both ends of drive roll pass through the bearing assembly with the frame is connected, seal assembly sets up the junction of bearing assembly and frame, just seal assembly is provided with interior seal and outer seal, interior seal set up in the inside of frame, outer seal set up in the outside of frame.
2. The rotary seal structure of a roller as claimed in claim 1, wherein the bearing assembly is provided with a bearing attached to an end of the driving roller and a bearing housing installed outside the bearing.
3. The rotary sealing structure of the roller according to claim 2, wherein a flange is welded on the frame, the bearing seat is connected in the flange, and a flange sealing gasket is arranged between the flange and the bearing seat.
4. The rotary seal structure of the roller according to claim 2, wherein the inner seal is provided with a first inner cover plate and a second inner cover plate, the first inner cover plate and the second inner cover plate are sleeved on the driving roller, and the second inner cover plate is connected with the inner end of the bearing seat.
5. The rotary sealing structure of the roller according to claim 4, wherein a skeleton sealing member is arranged at the joint of the second inner cover plate and the driving roller, the first inner cover plate is pressed on the skeleton sealing member, and an inner sealing gasket is arranged between the second inner cover plate and the bearing seat.
6. The rotary seal structure of the roller according to claim 2, wherein the outer seal is provided with a driving seal and a floating seal, the driving seal is disposed at one end of the frame, and the floating seal is disposed at the other end of the frame.
7. The rotary seal structure of a roller according to claim 6, wherein the driving seal is provided with a motor, a coupling, an adapter plate and a mounting case, an output end of the motor is connected with one end of the driving roller through the coupling, the mounting case is disposed outside the coupling, one end of the mounting case is connected with an outer end of the bearing housing, the other end of the mounting case is connected with the adapter plate, and the adapter plate is connected with the motor.
8. The rotary seal structure of a roller as claimed in claim 7, wherein a coupling seal is provided at a junction of the coupling and the bearing housing.
9. The rotary seal structure of a roller according to claim 6, wherein the running seal is provided with an outer cover plate, the outer cover plate is connected to an outer end of the bearing housing, and an outer gasket is provided between the outer cover plate and the bearing housing.
10. A lithium battery diaphragm extraction tank for wet diaphragm extraction of a lithium battery, characterized in that the extraction tank is provided with a rotary sealing structure of a passing roller according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322909018.0U CN221309610U (en) | 2023-10-27 | 2023-10-27 | Rotary sealing structure of roller and lithium battery diaphragm extraction tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322909018.0U CN221309610U (en) | 2023-10-27 | 2023-10-27 | Rotary sealing structure of roller and lithium battery diaphragm extraction tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221309610U true CN221309610U (en) | 2024-07-12 |
Family
ID=91790106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322909018.0U Active CN221309610U (en) | 2023-10-27 | 2023-10-27 | Rotary sealing structure of roller and lithium battery diaphragm extraction tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221309610U (en) |
-
2023
- 2023-10-27 CN CN202322909018.0U patent/CN221309610U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |