CN115849019B - Lithium battery negative electrode powder material gas conveying device and use method thereof - Google Patents
Lithium battery negative electrode powder material gas conveying device and use method thereof Download PDFInfo
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- CN115849019B CN115849019B CN202211525364.2A CN202211525364A CN115849019B CN 115849019 B CN115849019 B CN 115849019B CN 202211525364 A CN202211525364 A CN 202211525364A CN 115849019 B CN115849019 B CN 115849019B
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- 239000000843 powder Substances 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 title claims abstract description 40
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 135
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 description 11
- 230000009471 action Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000007480 spreading Effects 0.000 description 6
- 238000003892 spreading Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application discloses a lithium battery negative electrode powder material gas conveying device and a use method thereof, and relates to the technical field of gas conveying, wherein the device comprises a conveying pipe, a connecting sleeve, a connecting structure and a plurality of supporting pieces, sealing connecting rings are arranged at two ends of the conveying pipe, the inner wall of each sealing connecting ring is arranged in a spherical surface, and the diameter of one side of each sealing connecting ring facing the inside of the conveying pipe is larger; the connecting sleeve is movably arranged at the end part of the conveying pipe, the outer wall of the connecting sleeve is arranged in a spherical surface matched with the inner wall of the sealing connecting ring, and when the outer wall of the connecting sleeve is attached to the inner wall of the sealing connecting ring, the connecting sleeve and the sealing connecting ring are in a concentric state; the connecting sleeve is used for connecting two adjacent connecting sleeves; a plurality of said spreader members are located between two delivery tubes. According to the application, the sealing connecting ring, the connecting sleeve and the expanding piece are arranged, the sealing connecting ring is expanded by the expanding piece, and the sealing connecting ring is propped against the connecting sleeve in an outward expanding mode to realize sealing.
Description
Technical Field
The application relates to the technical field of gas delivery, in particular to a gas delivery device for negative electrode powder materials of a lithium battery and a use method of the gas delivery device.
Background
With the deep ideas of environmental protection and energy saving, the lithium battery industry is becoming more and more attractive, the capacity is becoming larger, the coming blowout type development is coming, and the global occupancy is rising year by year. Most of lithium battery negative electrode materials are micron-sized powder materials, and after the negative electrode materials such as graphite and the like are crushed, powder is finer, and the trend of finer and finer is that dust is very easy to raise due to fine powder. The production environment is extremely bad, and the material production turnover is very difficult. The labor cost is greatly increased, and the original rough production mode is becoming more and more not suitable for the current industrial upgrading. The powder vacuum airflow conveying process makes the automatic production of the negative electrode material and the assumption of an unmanned workshop possible, and the vacuum pneumatic conveying process makes the production of the negative electrode material automatic, unmanned and dust-free.
Because the conveying distance is longer, the pipeline for carrying negative electrode powder material is corresponding also very long, generally all can adopt multisection pipeline concatenation to form complete pipeline circuit, prior art is generally through flange cooperation sealed pad, seal the butt joint with two pipelines, and simple structure, but because flange joint is realized connecting two flanges inwards through the extrusion of bolt, and the ring flange is planar structure, long pipeline is under the action of gravity, pipeline between two supporting points can drop down, if the tie point just is located between two supporting points, time, the ring flange can appear deformation under the action of gravity of pipeline, lead to the ring flange lower extreme seam grow, make the joint leakproofness worsen, the condition that appears gas leakage, influence pipeline internal vacuum pneumatic conveying, in severe cases, still can lead to negative electrode powder material to leak, negative electrode powder material after leaking can pollute the atmosphere, be inhaled by the human body and easily cause the disease, therefore, it is desirable to design lithium cell negative electrode powder material gas conveying device.
Disclosure of Invention
The application aims to solve the problems that in the prior art, pipeline connection is realized by inwards extruding a flange, the flange plate deforms under the action of gravity of the pipeline, so that the joint at the lower end of the flange plate becomes large, the sealing performance of a connection part is poor, and negative electrode powder materials leak, and provides a lithium battery negative electrode powder material gas conveying device and a use method thereof.
In order to achieve the above purpose, the present application adopts the following technical scheme:
a lithium battery negative electrode powder material gas delivery device comprising:
the conveying pipe is provided with sealing connecting rings at two ends, the inner wall of the sealing connecting ring is in spherical surface, and the diameter of one side of the sealing connecting ring facing the inside of the conveying pipe is larger;
the connecting sleeve is movably arranged at the end part of the conveying pipe, the outer wall of the connecting sleeve is arranged in a spherical surface matched with the inner wall of the sealing connecting ring, and when the outer wall of the connecting sleeve is attached to the inner wall of the sealing connecting ring, the connecting sleeve and the sealing connecting ring are in a concentric state;
the connecting structure is used for connecting two adjacent connecting sleeves;
the conveying pipe comprises a plurality of conveying pipes, a plurality of supporting pieces and a plurality of supporting devices, wherein the supporting pieces are positioned between the two conveying pipes, a plurality of jacks corresponding to the supporting pieces are formed at the ends of the conveying pipes, and the supporting pieces are connected with the jacks in a sliding mode;
after the two adjacent connecting sleeves are in butt joint, the two adjacent sealing connecting rings can reversely move to abut against the corresponding connecting sleeves through the opening piece.
Preferably, the connecting mechanism comprises a first connecting pipe fixedly arranged at one end, far away from the conveying pipe, of one connecting sleeve, a second connecting pipe is fixedly arranged at the other end, far away from the conveying pipe, of the connecting sleeve, an outer wall of the first connecting pipe is provided with an outer thread, an inner wall of the second connecting pipe is provided with an inner thread, and the outer thread is matched with the inner thread.
Preferably, a sealing convex ring is fixedly arranged in the second connecting pipe, a sealing strip is fixedly arranged on the side wall of the sealing convex ring, and when two adjacent conveying pipes are in butt joint, the first connecting pipe is screwed into the second connecting pipe and is abutted against the sealing strip.
Preferably, the first connecting pipe and the second connecting pipe are both fixedly provided with operation blocks, and the cross sections of the operation blocks are arranged in a regular hexagon.
Preferably, the inner wall of the conveying pipe is fixedly provided with a mounting ring arranged corresponding to the connecting sleeve, and a pressing spring is arranged between the mounting ring and the connecting sleeve, so that the connecting sleeve tends to be pressed against the sealing connecting ring.
Preferably, the opening piece comprises a thread sleeve and two threaded rods, the two threaded rods are respectively in threaded connection with two ends of the thread sleeve, the directions of threads on the two threaded rods are opposite, one end, far away from the thread sleeve, of the threaded rod is fixedly provided with a connecting block, and the connecting block is in sliding connection with the jack.
Preferably, the cross sections of the insertion holes and the connecting blocks are polygonal and are consistent in shape.
Preferably, a sealing cavity is formed in the jack, a sliding block is arranged in the sealing cavity in a sealing sliding manner, a reset spring is arranged between the sliding block and the inner bottom of the sealing cavity, the sliding block extends into the jack, an annular groove is formed in the inner wall of the sealing connecting ring, and an air bag communicated with the sealing cavity is arranged in the annular groove.
The application method of the lithium battery negative electrode powder material gas conveying device comprises the following steps:
s1: the conveying pipes are butted, the two conveying pipes are coaxially placed, the operating blocks are clamped by tools and reversely rotated, and the first connecting pipe is screwed into the second connecting pipe to realize sealing connection;
s2: the supporting piece is adjusted, the threaded sleeve is rotated to enable the supporting piece to extend until the distance between the two connecting blocks is larger than the distance between the two conveying pipes, and at the moment, the two connecting blocks can be respectively inserted into corresponding jacks to conduct circumferential limiting;
s3: the supporting pieces are used for supporting the conveying pipe, after two connecting blocks on the same supporting piece are respectively inserted into corresponding jacks, the threaded sleeves are rotated, so that the two threaded rods simultaneously extend into the jacks until the connecting blocks support the inner bottoms of the jacks, the supporting pieces support the conveying pipe outwards, and sealing is achieved by extrusion between the sealing connecting rings and the connecting sleeves;
s4: the sealing performance is improved, the connecting block moves towards the jack and pushes the sliding block to move towards the sealing cavity, the air pressure in the sealing cavity is increased, the air bag communicated with the sealing cavity is inflated, and the air bag is fully contacted with the outer wall of the connecting sleeve.
Compared with the prior art, the application has the following advantages:
1. according to the application, the sealing connecting ring, the connecting sleeve and the spreading piece are arranged, after the connecting sleeve is connected, the sealing connecting ring is spread by the spreading piece, the sealing connecting ring is propped against the connecting sleeve in an outward spreading manner, and the strength support is carried out between the two conveying pipes by the plurality of spreading pieces.
2. According to the application, the sealing cavity, the sliding block, the reset spring and the air bag are arranged, after the two conveying pipes are unfolded by the unfolding piece, the connecting block is abutted against the sliding block, the sliding block moves towards the inside of the sealing cavity, the air bag is bulged, the air bag is tightly attached between the sealing connecting ring and the connecting sleeve, the sealing performance between the sealing connecting ring and the connecting sleeve is improved, the risk of leakage at the connecting position of the pipeline is further reduced, and the safety of the device is improved.
Drawings
FIG. 1 is a schematic view of a prior art flange connection in a deformed state;
fig. 2 is a schematic diagram of the overall structure of the gas delivery device for the negative electrode powder material of the lithium battery;
FIG. 3 is a schematic cross-sectional view of a gas delivery device for negative electrode powder material of a lithium battery according to the present application;
FIG. 4 is a schematic diagram of a partial cross-sectional structure of a gas delivery device for negative electrode powder material of a lithium battery according to the present application;
fig. 5 is a schematic structural diagram of a first connecting pipe in the gas conveying device for negative electrode powder material of lithium battery according to the present application;
fig. 6 is a schematic structural diagram of a second connecting pipe in the gas conveying device for negative electrode powder materials of lithium batteries according to the present application;
fig. 7 is a schematic structural diagram of an initial state of a gas delivery device for negative electrode powder materials of a lithium battery according to the present application;
fig. 8 is a schematic structural diagram of a deformation state of a lithium battery negative electrode powder material gas delivery device according to the present application;
fig. 9 is a schematic structural view of a spreader in a lithium battery negative electrode powder material gas delivery device according to the present application.
In the figure: 1. a delivery tube; 2. sealing the connecting ring; 3. connecting sleeves; 4. a spreader; 41. a thread sleeve; 42. a threaded rod; 43. a connecting block; 5. a jack; 6. a first connecting pipe; 7. a second connecting pipe; 8. sealing the convex ring; 9. a sealing strip; 10. an operation block; 11. pressing the spring; 12. sealing the cavity; 13. a slide block; 14. a return spring; 15. an air bag; 16. and (5) a mounting ring.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
According to the embodiment of the application, through the provision of the lithium battery negative electrode powder material gas conveying device and the use method thereof, the problems that in the prior art, pipeline connection is realized by inwards extruding through the flange, the flange is deformed under the action of gravity of the pipeline, the joint at the lower end of the flange is enlarged, the tightness of the joint is poor, and the situation that negative electrode powder materials leak is caused are solved.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Referring to fig. 2-4, the lithium battery negative electrode powder material gas conveying device comprises a conveying pipe 1, the conveying pipe 1 is the minimum unit of the device for carrying out negative electrode powder materials, the conveying pipe 1 can be spliced according to the distance required by the negative electrode powder materials, sealing connecting rings 2 are arranged at two ends of the conveying pipe 1, the sealing connecting rings 2 and the conveying pipe 1 are integrally formed during processing, the tightness between the sealing connecting rings 2 and the conveying pipe 1 is improved, the inner wall of the sealing connecting rings 2 is in a spherical surface, the middle of the sealing connecting rings 2 is in a penetrating arrangement, and the inner wall of the sealing connecting rings 2 is a cutting part of the spherical surface.
The connecting sleeve 3, the connecting sleeve 3 activity sets up in conveyer pipe 1 tip, for running through the setting in the middle of the connecting sleeve 3, and connecting sleeve 3 outer wall is the interception at the sphere, connecting sleeve 3 outer wall be with sealing connection ring 2 inner wall looks adaptation sphere setting, sealing connection ring 2 is bigger towards the inside one side diameter of conveyer pipe 1, and connecting sleeve 3 is bigger towards the inside one side diameter of conveyer pipe 1, so when connecting sleeve 3 moves to conveyer pipe 1 outside, because connecting sleeve 3 and sealing connection ring 2's shape restriction, connecting sleeve 3 offsets with sealing connection ring 2, can't break away from sealing connection ring 2.
When the outer wall of the connecting sleeve 3 is attached to the inner wall of the sealing connecting ring 2, the connecting sleeve 3 and the sealing connecting ring 2 are in a concentric state, at this time, the outer wall of the connecting sleeve 3 is completely attached to the inner wall of the sealing connecting ring 2, sealing is achieved, and when the connecting sleeve 3 rotates around the circle center for a certain angle, the connecting sleeve 3 and the sealing connecting ring 2 still keep a sealing state, therefore, when the connecting part of the conveying pipe 1 is acted by gravity for a long time, the lower end stress tends to be outwards opened, the connecting sleeve 3 rotates with the sealing connecting ring 2 to offset deformation caused by gravity, so that the connecting part of the conveying pipe 1 keeps a sealing effect, the risk of leakage of the connecting part of the conveying pipe 1 is reduced, and the stability of the negative electrode powder material is ensured.
The connecting structure is used for connecting two adjacent connecting sleeves 3, the connecting sleeves 3 can be connected in an end-to-end manner through the connecting structure, and when the connecting sleeve is used, the connecting sleeves 3 can be connected in a butt joint manner according to the planning of a line, so that the conveying pipes 1 are connected with each other to form a long pipeline, and the negative electrode powder material can be used from a gas station to a specified gas unit.
Referring to fig. 4-6, the connection mechanism comprises a first connection pipe 6 fixedly arranged at one end of one connection sleeve 3 far away from the conveying pipe 1, the first connection pipe 6 is coaxially arranged with the connection sleeve 3, a second connection pipe 7 is fixedly arranged at one end of the other connection sleeve 3 far away from the conveying pipe 1, the second connection pipe 7 is coaxially arranged with the connection sleeve 3, an external thread is arranged on the outer wall of the first connection pipe 6, an internal thread is arranged on the inner wall of the second connection pipe 7, the external thread is matched with the internal thread, after the first connection pipe 6 is coaxially butted with the second connection pipe 7, the first connection pipe 6 and the second connection pipe 7 are reversely rotated, the first connection pipe 6 is screwed into the second connection pipe 7, sealing connection between the first connection pipe 6 and the second connection pipe 7 is achieved, and at the moment, a sealed pipeline for conveying negative electrode powder materials is formed inside the two conveying pipes 1.
Referring to fig. 5-6, a sealing convex ring 8 is fixedly arranged in the second connecting pipe 7, a sealing strip 9 is fixedly arranged on the side wall of the sealing convex ring 8, when two adjacent conveying pipes 1 are in butt joint, the first connecting pipe 6 is screwed into the second connecting pipe 7 and is abutted against the sealing strip 9, the first connecting pipe 6 is matched with the first connecting pipe 6 through the sealing strip 9, after the first connecting pipe 6 is screwed into the second connecting pipe 7 to reach the limit position, the sealing strip 9 is abutted against the sealing strip 9 to deform the sealing strip 9, and sealing is realized between the first connecting pipe 6 and the sealing convex ring 8 at the moment, so that the sealing performance of connection between the first connecting pipe 6 and the second connecting pipe 7 is improved, and the risk of leakage occurs at a joint between the first connecting pipe 6 and the second connecting pipe 7.
Referring to fig. 5-6, the outer walls of the first connecting pipe 6 and the second connecting pipe 7 are fixedly provided with an operating block 10, the cross section of the operating block 10 is in a regular hexagon, and the first connecting pipe 6 and the second connecting pipe 7 which are in threaded connection are movably arranged on the corresponding conveying pipe 1, so that the first connecting pipe 6 and the second connecting pipe 7 can be connected more tightly due to lack of circumferential limitation, the second connecting pipe 7 can rotate along with the rotation of the first connecting pipe 6, the operating block 10 is arranged, the cross section of the operating block 10 is in a regular hexagon, installation personnel can use tools conveniently, and circumferential limitation is performed on the first connecting pipe 6 and the second connecting pipe 7.
Referring to fig. 3, a mounting ring 16 corresponding to the connecting sleeve 3 is fixedly mounted on the inner wall of the conveying pipe 1, a pressing spring 11 is arranged between the mounting ring 16 and the connecting sleeve 3, one end of the pressing spring 11 is fixedly arranged on the mounting ring 16, the other end of the pressing spring abuts against the side wall of the connecting sleeve 3, the connecting sleeve 3 tends to abut against the sealing connecting ring 2 under the elastic force of the pressing spring 11, at the moment, the connecting sleeve 3 and the sealing connecting ring 2 keep sealing, a first connecting pipe 6 and a second connecting pipe 7 arranged on the connecting sleeve 3 extend out of the sealing connecting ring 2, the connecting sleeve 3 can freely rotate circumferentially, the first connecting pipe 6 and the second connecting pipe 7 are convenient to rotate and abut against, and the operation difficulty of abutting and mounting the conveying pipe 1 is reduced.
The utility model provides a plurality of strut 4, strut 4 can carry out axial expansion, be favorable to carrying out reverse strut with two conveyer pipes 1, a plurality of strut 4 are located between two conveyer pipes 1, the jack 5 that a plurality of corresponding strut 4 set up is seted up to conveyer pipe 1 tip, jack 5 is distributed around conveyer pipe 1 axial equidistance, guarantee the stability that strut 4 supported between two conveyer pipes 1, strut 4 and jack 5 sliding connection, accomplish the butt joint at adjacent two adapter sleeves 3 after, place strut 4 between two conveyer pipes 1, can make adjacent two seal ring 2 reverse motion and the corresponding adapter sleeve 3 support tightly through strut 4, and with strut 4 extension back, make strut 4 outwards jack two conveyer pipes 1, make seal ring 2 and adapter sleeve 3 can closely laminate, keep the leakproofness, and support through strut 4, can play the purpose of strengthening the junction between connecting pipe one 6 and two 7, reduce the risk of atress between one 6 and two connecting pipes 7.
Referring to fig. 1 and 7-8, in the traditional flange connection inward extrusion connection mode, the condition that the conveying pipe 1 is loose under the action of gravity can appear, the expansion piece 4 is matched with the sealing connection ring 2 and the connecting sleeve 3 to be expanded outwards, the extrusion connection mode between the sealing connection ring 2 and the connecting sleeve 3 is adopted, the connecting part of the conveying pipe 1 is enabled to fall down along with the action of gravity, the connecting part is enabled to be fastened outwards by the two conveying pipes 1, the risk that the negative electrode powder material leaks due to the expansion gap at the bottom end of the connecting part of the conveying pipe 1 under the action of gravity is reduced, the leakage prevention performance of the conveying pipe 1 is improved, and stable conveying of the negative electrode powder material is ensured.
Referring to fig. 9, the spreader 4 includes a threaded sleeve 41 and two threaded rods 42, the two threaded rods 42 are respectively in threaded connection with two ends of the threaded sleeve 41, and the directions of the threads on the two threaded rods 42 are opposite, so that under the condition that the two threaded rods 42 are circumferentially limited, the threaded sleeve 41 is rotated, the two threaded rods 42 can move reversely, the two threaded rods 42 can simultaneously extend outwards through rotating the threaded sleeve 41, the extension of the spreader 4 is realized, the threaded rods 42 are fixedly arranged at one end, far away from the threaded sleeve 41, of the threaded rods 42, the connecting blocks 43 are in sliding connection with the jacks 5, the connecting blocks 43 are matched with the jacks 5, the positioning of the spreader 4 on the conveying pipes 1 is facilitated, and the spreader 4 is ensured to be uniformly distributed between the two conveying pipes 1.
Referring to fig. 9, the cross sections of the insertion hole 5 and the connection block 43 are polygonal, the insertion hole 5 and the connection block 43 are matched with each other, the connection block 43 is circumferentially limited after the connection block 43 is inserted into the insertion hole 5, and at the moment, the connection block 43 only allows axial sliding along the insertion hole 5, so that the threaded sleeve 41 can be rotated conveniently to adjust the position of the threaded rod 42.
Referring to fig. 4, a sealing cavity 12 is formed in the jack 5, the cross section of the sealing cavity 12 is smaller than the cross section of the jack 5, so that when the connecting block 43 moves into the jack 5, an outward thrust can be applied to the conveying pipes 1 when the bottom of the jack 5 is pressed, so that the two conveying pipes 1 are far away from each other, a sliding block 13 is arranged in the sealing cavity 12 in a sealing sliding manner, a return spring 14 is arranged between the sliding block 13 and the inner bottom of the sealing cavity 12, so that the sliding block 13 extends into the jack 5 partially, when the connecting block 43 moves into the jack 5, the sliding block 13 is pushed to move into the sealing cavity 12, and the return spring 14 is compressed, an annular groove is formed in the inner wall of the sealing connecting ring 2, an air bag 15 communicated with the sealing cavity 12 is arranged in the annular groove, the air bag 15 is in a flat state in an initial state, the sealing connecting ring 2 and the connecting sleeve 3 are convenient to attach and butt joint, when the sliding block 13 moves towards the sealing cavity 12, the air pressure in the sealing cavity 12 is increased, the air bag 15 communicated with the sliding block is inflated, the air bag 15 fully contacts with the outer wall of the connecting sleeve 3, the sealing performance between the sealing connecting ring 2 and the connecting sleeve 3 is improved, the leakage risk at the joint of the conveying pipe 1 is further reduced, and the safety of the device is improved.
The specific working principle of the application is as follows:
the application method of the lithium battery negative electrode powder material gas conveying device comprises the following steps:
s1: the conveying pipes 1 are butted, the two conveying pipes 1 are coaxially placed, the operating block 10 is clamped by a tool, and the two conveying pipes are reversely rotated, so that the first connecting pipe 6 is screwed into the second connecting pipe 7 to realize sealing connection;
s2: the spreader 4 is adjusted, the threaded sleeve 41 is rotated to extend the spreader 4 until the distance between the two connecting blocks 43 is larger than the distance between the two conveying pipes 1, and at the moment, the two connecting blocks 43 can be respectively inserted into the corresponding insertion holes 5 to perform circumferential limiting;
s3: after two connecting blocks 43 on the same spreading piece 4 are respectively inserted into corresponding jacks 5, the threaded sleeve 41 is rotated, so that two threaded rods 42 simultaneously extend into the jacks 5 until the connecting blocks 43 are propped against the inner bottom of the jacks 5, the spreading piece 4 supports the conveying pipe 1 outwards, and the sealing connection ring 2 and the connecting sleeve 3 are extruded to realize sealing;
s4: the sealing performance is improved, the connecting block 43 moves towards the jack 5 and pushes the sliding block 13, so that the sliding block 13 moves towards the inside of the sealing cavity 12, the air pressure in the sealing cavity 12 is increased, the air bag 15 communicated with the sliding block is inflated, the air bag 15 is fully contacted with the outer wall of the connecting sleeve 3, the sealing performance between the sealing connecting ring 2 and the connecting sleeve 3 is improved, the risk of leakage at the joint of the conveying pipe 1 is further reduced, and the safety of the device is improved.
Along with the effect of gravity, make conveyer pipe 1 junction whereabouts, two conveyer pipes 1 outwards stretch, then can make junction more fastening, sealing connection ring 2 is the sphere setting with adapter sleeve 3, belong to concentric state under sealed laminating's state, even the angular deviation has appeared between two conveyer pipes 1 of connection, sealing connection ring 2 and adapter sleeve 3 still are in concentric state after the position state changes, consequently sealing connection ring 2 still can keep sealing state with adapter sleeve 3, reduce conveyer pipe 1 junction and expand the risk that the crack leads to negative pole powder material to reveal because of gravity effect bottom, be favorable to improving conveyer pipe 1's leak-proof performance, guarantee the stable transport of negative pole powder material.
The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, who is within the scope of the present application, should make equivalent substitutions or modifications according to the technical scheme of the present application and the inventive concept thereof, and should be covered by the scope of the present application.
Claims (5)
1. A lithium battery negative electrode powder material gas delivery device, comprising:
the conveying pipe (1), both ends of the conveying pipe (1) are provided with sealing connecting rings (2), the inner wall of each sealing connecting ring (2) is in a spherical surface, and the diameter of one side of each sealing connecting ring (2) facing the inside of the conveying pipe (1) is larger;
the connecting sleeve (3) is movably arranged at the end part of the conveying pipe (1), the outer wall of the connecting sleeve (3) is arranged in a spherical surface matched with the inner wall of the sealing connecting ring (2), and when the outer wall of the connecting sleeve (3) is attached to the inner wall of the sealing connecting ring (2), the connecting sleeve (3) and the sealing connecting ring (2) are in a concentric state;
the connecting structure is used for connecting two adjacent connecting sleeves (3);
the conveying pipe comprises a plurality of supporting pieces (4), wherein the supporting pieces (4) are positioned between two conveying pipes (1), a plurality of jacks (5) which are arranged corresponding to the supporting pieces (4) are formed in the end parts of the conveying pipes (1), and the supporting pieces (4) are connected with the jacks (5) in a sliding mode;
after the two adjacent connecting sleeves (3) are in butt joint, the two adjacent sealing connecting rings (2) can reversely move to be abutted against the corresponding connecting sleeves (3) through the supporting pieces (4);
the connecting structure comprises a first connecting pipe (6) fixedly arranged at one end, far away from the conveying pipe (1), of one connecting sleeve (3), a second connecting pipe (7) is fixedly arranged at one end, far away from the conveying pipe (1), of the other connecting sleeve (3), an external thread is arranged on the outer wall of the first connecting pipe (6), an internal thread is arranged on the inner wall of the second connecting pipe (7), and the external thread is matched with the internal thread;
an operation block (10) is fixedly arranged on the outer walls of the first connecting pipe (6) and the second connecting pipe (7), and the section of the operation block (10) is arranged in a regular hexagon;
the expanding piece (4) comprises a thread sleeve (41) and two threaded rods (42), the two threaded rods (42) are respectively connected to two ends of the thread sleeve (41) in a threaded mode, the threaded directions of the two threaded rods (42) are opposite, one end, far away from the thread sleeve (41), of each threaded rod (42) is fixedly provided with a connecting block (43), and the connecting blocks (43) are connected with the jacks (5) in a sliding mode;
a sealing cavity (12) is formed in the jack (5), a sliding block (13) is arranged in the sealing cavity (12) in a sealing sliding manner, a return spring (14) is arranged between the sliding block (13) and the inner bottom of the sealing cavity (12), the sliding block (13) extends into the jack (5) partially, an annular groove is formed in the inner wall of the sealing connecting ring (2), and an air bag (15) communicated with the sealing cavity (12) is arranged in the annular groove.
2. The lithium battery negative electrode powder material gas conveying device according to claim 1, wherein a sealing convex ring (8) is fixedly arranged in the second connecting pipe (7), a sealing strip (9) is fixedly arranged on the side wall of the sealing convex ring (8), and when two adjacent conveying pipes (1) are in butt joint, the first connecting pipe (6) is screwed into the second connecting pipe (7) and is abutted against the sealing strip (9).
3. The lithium battery negative electrode powder material gas conveying device according to claim 2, wherein a mounting ring (16) corresponding to the connecting sleeve (3) is fixedly arranged on the inner wall of the conveying pipe (1), and a pressing spring (11) is arranged between the mounting ring (16) and the connecting sleeve (3) so that the connecting sleeve (3) tends to be pressed against the sealing connecting ring (2).
4. A lithium battery negative electrode powder material gas delivery device according to claim 3, characterized in that the cross section of the insertion hole (5) and the connecting block (43) is a polygonal arrangement with a uniform shape.
5. Use of a lithium battery negative electrode powder material gas delivery device according to any one of claims 1-4, comprising the steps of:
s1: the conveying pipes (1) are butted, the two conveying pipes (1) are coaxially placed, the operating block (10) is clamped by a tool, and the operating block is reversely rotated, so that the first connecting pipe (6) is screwed into the second connecting pipe (7) to realize sealing connection;
s2: the expansion piece (4) is adjusted, the threaded sleeve (41) is rotated to enable the expansion piece (4) to be elongated until the distance between the two connecting blocks (43) is larger than the distance between the two conveying pipes (1), and at the moment, the two connecting blocks (43) can be respectively inserted into corresponding insertion holes (5) to perform circumferential limiting;
s3: the conveying pipe (1) is propped against by the propping piece (4), after two connecting blocks (43) on the same propping piece (4) are respectively inserted into corresponding insertion holes (5), the threaded sleeve (41) is rotated, so that two threaded rods (42) simultaneously extend into the insertion holes (5) until the connecting blocks (43) prop against the inner bottoms of the insertion holes (5), the conveying pipe (1) is propped outwards by the propping piece (4), and the sealing connection ring (2) and the connecting sleeve (3) are extruded to realize sealing;
s4: the sealing performance is improved, the connecting block (43) moves towards the jack (5) and pushes the sliding block (13), so that the sliding block (13) moves towards the inside of the sealing cavity (12), the air pressure in the sealing cavity (12) is increased, the air bag (15) communicated with the sealing cavity is inflated, and the air bag (15) is fully contacted with the outer wall of the connecting sleeve (3).
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| CN115849019A (en) | 2023-03-28 |
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