Arch breaking device for lithium battery powder bin and lithium battery powder bin

Abstract

The utility model belongs to the technical field of common crushing, and particularly relates to an arch breaking device for a lithium battery powder bin and the lithium battery powder bin. The arch breaking device for the lithium battery powder bin comprises a connecting flange, a connecting rod and a connecting rod, the turntable is coaxially arranged in the connecting flange, and an inverted V-shaped convex ring is arranged on the side wall of the turntable; the first rollers are connected with the connecting flange and are arranged into a circle; v-shaped grooves are formed in the side walls of the second rolling wheels, and all the second rolling wheels are connected with the connecting flange and arranged into a circle. The V-shaped groove of the second roller is attached to the inverted V-shaped convex ring of the turntable; according to the arch breaking device for the lithium battery powder bin, a plurality of second rolling wheels with V-shaped grooves are arranged, and the V-shaped grooves of the second rolling wheels are matched with inverted-V-shaped convex rings of a rotating disc, so that the rotating disc is rotationally arranged in a connecting flange; meanwhile, a plurality of first rolling wheels and second rolling wheels are arranged to make contact with the upper portion and the lower portion of the rotating disc correspondingly so as to prevent shaking.

Description

Technical Field

[0001] This utility model belongs to the field of general crushing technology, specifically relating to auxiliary devices, and more particularly to an arch-breaking device for lithium battery powder silos and a lithium battery powder silo. Background Technology

[0002] The powder used in lithium batteries is stored in a powder silo. When it is needed, the outlet at the bottom of the powder silo is opened to let the powder flow out. However, due to compression and other reasons, the powder at the bottom of the silo tends to clump together, making it difficult for the powder to fall out of the outlet. Therefore, a paddle-equipped anti-clumping device is usually installed to break up the clumps of powder so that it can flow out.

[0003] The blades are usually set on the turntable of the arch-breaking device and extend into the powder silo. The rotation of the turntable drives the blades to disperse the material. In related technologies, the blades rotate close to the inner wall of the powder silo to scrape off the powder adhering to the inner wall of the powder silo. However, the blades are prone to scratching the inner wall of the powder silo due to shaking during rotation.

[0004] Therefore, how to solve the technical problem of the blades easily scratching the inner wall of the powder silo is an urgent problem that needs to be solved by those skilled in the art.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This utility model provides an arch-breaking device for lithium battery powder silos and a lithium battery powder silo.

[0007] In a first aspect, embodiments of this disclosure provide at least one arch-breaking device for lithium battery powder silos, comprising: a connecting flange connected to a discharge port at the bottom of the powder silo body; a turntable coaxially disposed within the connecting flange, its sidewall having an inverted V-shaped protrusion; a plurality of first rollers, each first roller connected to the connecting flange and arranged in a circle; a plurality of second rollers with V-shaped grooves on their sidewalls, each second roller connected to the connecting flange and arranged in a circle; wherein the first rollers abut against the sidewalls of the turntable, and the V-shaped grooves of the second rollers fit against the inverted V-shaped protrusion of the turntable; a blade, one end of which is connected to the inner wall of the turntable, and the other end extending into the powder silo body; and a driving mechanism adapted to drive the turntable to rotate so that the blade breaks up agglomerated materials at the discharge port of the powder silo body.

[0008] In one optional embodiment, the connecting flange includes: a first mounting block; an upper flange ring connected to the upper surface of the first mounting block; and a lower flange ring connected to the lower surface of the first mounting block; wherein the first roller is connected to the lower surface of the upper flange ring, and the second roller is connected to the upper surface of the lower flange ring.

[0009] In one alternative embodiment, the second roller is connected to the lower flange ring by bolts; a spacer is provided between the second roller and the lower flange ring; the bolt includes a guide section and a threaded section; wherein the second roller and the spacer are both located on the guide section.

[0010] In one optional embodiment, the first roller is connected to the upper flange ring via a pin; wherein the lower end of the pin is provided with a first boss and the middle part is provided with a second boss; the first roller is sleeved on the second boss to abut against the platform of the first boss; the pin is interference-fitted with the mounting hole of the upper flange ring, and the platform of the second boss abuts against the upper flange ring.

[0011] In one optional embodiment, an upper pressure ring is provided on the upper flange ring; the outer ring of the upper pressure ring is connected to the upper flange ring, and the inner ring of the upper pressure ring is in concave-convex fit with the upper end of the turntable; a lower pressure ring is provided on the lower flange ring; the outer ring of the lower pressure ring is connected to the lower flange ring, and the inner ring of the lower pressure ring is in concave-convex fit with the lower end of the turntable.

[0012] In one optional embodiment, the upper end face of the turntable is provided with a first annular groove, which communicates with the inner wall of the turntable; the inner ring of the upper pressure ring is provided with a first annular boss that matches the first annular groove; wherein, the first annular boss is located in the first annular groove.

[0013] In one optional embodiment, a second annular groove is formed in the middle of the lower end face of the turntable; the inner ring of the lower pressure ring is provided with a second annular boss that matches the second annular groove; wherein the second annular boss is located in the second annular groove.

[0014] In one optional embodiment, the inner wall of the turntable is provided with a second mounting block; the lower end of the blade is connected to the second mounting block; the upper part of the blade is bent to form an angle α; wherein the angle α is adapted to the bending angle within the powder hopper body.

[0015] In one optional embodiment, the drive mechanism includes: a motor and a chain; a first sprocket is provided on the drive end of the motor; a second sprocket is provided on the side wall of the turntable; and the chain is connected to the first sprocket and the second sprocket.

[0016] Secondly, the present disclosure provides at least one lithium battery powder silo, including: a powder silo body with a discharge port at its lower end; and an arch-breaking device for the lithium battery powder silo body as described above, which is connected to the discharge port.

[0017] The beneficial effects of this utility model are as follows: the lithium battery powder silo breaking device and the lithium battery powder silo are equipped with multiple second rollers with V-shaped grooves, so that the V-shaped grooves of the second rollers cooperate with the inverted V-shaped convex ring of the turntable, so that the turntable is rotated and set inside the connecting flange; at the same time, multiple first rollers are provided, so that the first rollers and second rollers respectively contact the upper and lower parts of the turntable to prevent the turntable from shaking during rotation, so as to avoid scratching the inner wall of the powder silo body; and the labyrinth seal between the upper and lower ends of the turntable and the upper and lower pressure rings is used to prevent material from flowing out of the turntable and adhering to the drive mechanism.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an arch-breaking device for a lithium battery powder silo provided in an embodiment of the present disclosure;

[0022] Figure 2 This is a schematic diagram of the installation structure of an arch-breaking device for a lithium battery powder silo, provided in an embodiment of this disclosure.

[0023] Figure 3 This is a schematic diagram of the structure of a second roller provided in an embodiment of the present disclosure;

[0024] Figure 4 A cross-sectional view of a second roller provided in an embodiment of this disclosure;

[0025] Figure 5 This is a schematic diagram of the structure of a first roller provided in an embodiment of the present disclosure;

[0026] Figure 6 This is a cross-sectional view of an arch-breaking device for a lithium battery powder silo, provided in an embodiment of the present disclosure.

[0027] Figure 7 An embodiment provided by this disclosure Figure 6 Enlarged structural diagram at point A;

[0028] Figure 8 An embodiment provided by this disclosure Figure 6 Enlarged structural diagram at point B;

[0029] Figure 9 This is a cross-sectional view of a turntable provided in an embodiment of the present disclosure.

[0030] In the picture:

[0031] Connecting flange 1, first mounting block 11, upper flange ring 12, lower flange ring 13, upper pressure ring 14, first annular boss 141, lower pressure ring 15, second annular boss 151;

[0032] Turntable 2, inverted V-shaped convex ring 21, first annular groove 22, second annular groove 23, second mounting block 24, second sprocket 25;

[0033] First roller 3, pin 31, first boss 311, second boss 312;

[0034] Second roller 4, V-groove 41, bolt 42, guide section 421, threaded section 422, pad 43;

[0035] 5 blades;

[0036] Drive mechanism 6, motor 61, chain 62;

[0037] 7. Powder silo body and 71. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the figures, the thickness of parts may be exaggerated or reduced for the purpose of effectively depicting the technical content.

[0040] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0041] like Figures 1 to 5 As shown, at least one embodiment provides an arch-breaking device for lithium battery powder silos, comprising: a connecting flange 1 connected to the discharge port 71 at the bottom of the powder silo body 7; a turntable 2 coaxially disposed within the connecting flange 1, with an inverted V-shaped protrusion 21 on its side wall; a plurality of first rollers 3, each first roller 3 connected to the connecting flange 1 and arranged in a circle; a plurality of second rollers 4 with V-shaped grooves 41 on their side walls, each second roller 4 connected to the connecting flange 1 and arranged in a circle; wherein the first rollers 3 abut against the side wall of the turntable 2, and the V-shaped grooves 41 of the second rollers 4 fit against the inverted V-shaped protrusion 21 of the turntable 2; a blade 5, one end of which is connected to the inner wall of the turntable 2, and the other end extending into the powder silo body 7; and a drive mechanism 6 adapted to drive the turntable 2 to rotate so that the blade 5 breaks up the agglomerated material at the discharge port 71 of the powder silo body 7.

[0042] Specifically, by setting multiple second rollers 4 with V-grooves 41, the V-grooves 41 of the second rollers 4 are made to cooperate with the inverted V-shaped protrusions 21 of the turntable 2, so that the turntable 2 is rotated and set in the connecting flange 1; at the same time, by setting multiple first rollers 3, the first rollers 3 and the second rollers 4 are made to contact the upper and lower parts of the turntable 2 respectively, so as to prevent the turntable 2 from shaking when it rotates.

[0043] In this embodiment, the drive mechanism 6 drives the turntable 2 to rotate, causing the paddle 5 to rotate within the discharge port 71 of the powder silo body 7 to break up the clumps of material, thereby preventing the clumps of material from blocking the discharge port 71.

[0044] like Figure 6 As shown, in some embodiments, the upper part of the blade 5 is bent to form an angle α; wherein the angle of angle α is adapted to the bending angle inside the powder hopper body 7.

[0045] In this embodiment, the blade 5 is attached to the inner wall of the powder hopper body 7, so that the blade 5 can scrape off the material adhering to the inner wall of the powder hopper body 7 when it rotates.

[0046] like Figure 1 As shown, in some embodiments, the connecting flange 1 includes: a first mounting block 11; an upper flange ring 12 connected to the upper surface of the first mounting block 11; and a lower flange ring 13 connected to the lower surface of the first mounting block 11; wherein, a first roller 3 is connected to the lower surface of the upper flange ring 12, and a second roller 4 is connected to the upper surface of the lower flange ring 13.

[0047] In this embodiment, a split-type connecting flange 1 is used, which makes it easier to install the turntable 2, the first roller 3, and the second roller 4.

[0048] like Figure 3 , Figure 4As shown, in some embodiments, the second roller 4 is connected to the lower flange ring 13 by bolts 42; a pad 43 is provided between the second roller 4 and the lower flange ring 13; the bolt 42 includes a guide section 421 and a threaded section 422; wherein the second roller 4 and the pad 43 are both located on the guide section 421.

[0049] In this embodiment, a section of the bolt 42 is left unthreaded to form a guide section 421, thereby enabling the bolt 42 to precisely engage with the reamed hole of the second roller 4; at the same time, the flatness and perpendicularity requirements of the pad 43 ensure the engagement between the second roller 4 and the turntable 2.

[0050] like Figure 5 As shown, in some embodiments, the first roller 3 is connected to the upper flange ring 12 via a pin 31; wherein the lower end of the pin 31 is provided with a first boss 311 and the middle part is provided with a second boss 312; the first roller 3 is sleeved on the second boss 312 to abut against the platform of the first boss 311; the pin 31 is interference-fitted with the mounting hole of the upper flange ring 12, and the platform of the second boss 312 abuts against the upper flange ring 12.

[0051] In this embodiment, the pin 31 is fastened in the mounting hole of the upper flange ring 12, and the platform of the second boss 312 restricts the length of the pin 31 extending into the mounting hole, preventing the first roller 3 from being jammed by the pin 31.

[0052] like Figures 6 to 9 As shown, in some embodiments, an upper pressure ring 14 is provided on the upper flange ring 12; the outer ring of the upper pressure ring 14 is connected to the upper flange ring 12, and the inner ring of the upper pressure ring 14 is in concave-convex fit with the upper end of the turntable 2; a lower pressure ring 15 is provided on the lower flange ring 13; the outer ring of the lower pressure ring 15 is connected to the lower flange ring 13, and the inner ring of the lower pressure ring 15 is in concave-convex fit with the lower end of the turntable 2.

[0053] In this embodiment, since the turntable 2 is the part that mainly contacts the material, the powder will enter from the gap between the turntable 2 and the upper pressure ring 14 and the lower pressure ring 15. Therefore, the labyrinth seal with concave and convex fit prevents the material from flowing out of the turntable 2 and adhering to the drive mechanism 6.

[0054] like Figure 7 , Figure 9 As shown, in some embodiments, the upper end face of the turntable 2 is provided with a first annular groove 22, which is connected to the inner wall of the turntable 2; the inner ring of the upper pressure ring 14 is provided with a first annular boss 141 that is adapted to the first annular groove 22; wherein, the first annular boss 141 is located in the first annular groove 22.

[0055] In this embodiment, since the material falls from top to bottom, the upper pressure ring 14 can cover the turntable 2 through the first annular boss 141 to prevent the material from easily flowing out of the turntable 2.

[0056] like Figure 8 , Figure 9 As shown, in some embodiments, a second annular groove 23 is provided in the middle of the lower end face of the turntable 2; the inner ring of the lower pressure ring 15 is provided with a second annular boss 151 that is adapted to the second annular groove 23; wherein, the second annular boss 151 is located in the second annular groove 23.

[0057] In this embodiment, since the material falls from top to bottom, covering the lower pressure ring 15 with the turntable 2 can prevent the material from easily flowing out of the turntable 2.

[0058] like Figure 6 As shown, in some embodiments, the inner wall of the turntable 2 is provided with a second mounting block 24; the lower end of the blade 5 is connected to the second mounting block 24.

[0059] In some embodiments, the drive mechanism 6 includes a motor 61 and a chain 62; a first sprocket (not shown in the figure) is provided on the drive end of the motor 61; a second sprocket 25 is provided on the side wall of the turntable 2; and the chain 62 is connected to the first sprocket and the second sprocket 25.

[0060] At least one embodiment also provides a lithium battery powder silo, including: a powder silo body 7, the lower end of which is a discharge port 71; and a lithium battery powder silo arch-breaking device connected to the discharge port 71.

[0061] For the specific structure and implementation process of the arch-breaking device for lithium battery powder silos, please refer to the relevant discussion in the above embodiments, which will not be repeated here.

[0062] In summary, this lithium battery powder silo arch-breaking device and lithium battery powder silo are equipped with multiple second rollers 4 with V-grooves 41, so that the V-grooves 41 of the second rollers 4 cooperate with the inverted V-shaped convex rings 21 of the turntable 2, so that the turntable 2 is rotatably mounted in the connecting flange 1; at the same time, multiple first rollers 3 are provided, so that the first rollers 3 and the second rollers 4 respectively contact the upper and lower parts of the turntable 2 to prevent the turntable 2 from shaking during rotation; and the labyrinth seal between the upper and lower ends of the turntable 2 and the upper pressure ring 14 and the lower pressure ring 15 prevents material from flowing out of the turntable 2 and adhering to the drive mechanism 6.

[0063] In this document, when it is said that the first component is located on the second component, this can mean that the first component can be directly formed on the second component, or that the third component can be inserted between the first component and the second component.

[0064] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0065] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0066] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0067] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0068] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0069] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0070] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0071] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0072] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A device for breaking up arches in a lithium battery powder silo, characterized in that, include: Connect the flange (1) to the discharge port (71) at the bottom of the powder silo body (7); The turntable (2) is coaxially arranged inside the connecting flange (1), and its side wall is provided with an inverted V-shaped protruding ring (21). A plurality of first rollers (3), each of the first rollers (3) is connected to the connecting flange (1) and arranged in a circle; Several second rollers (4) with V-shaped grooves (41) on their sidewalls are connected to the connecting flange (1) and arranged in a circle; The first roller (3) abuts against the side wall of the turntable (2), and the V-groove (41) of the second roller (4) fits against the inverted V-shaped protrusion (21) of the turntable (2). The blade (5) has one end connected to the inner wall of the turntable (2) and the other end extended into the powder hopper body (7); The drive mechanism (6) is adapted to drive the turntable (2) to rotate so that the blade (5) breaks up the agglomerated material at the outlet (71) of the powder silo body (7).

2. The arch-breaking device for lithium battery powder silos as described in claim 1, characterized in that, The connecting flange (1) includes: First mounting block (11); The upper flange ring (12) is connected to the upper surface of the first mounting block (11); The lower flange ring (13) is connected to the lower surface of the first mounting block (11); The first roller (3) is connected to the lower surface of the upper flange ring (12), and the second roller (4) is connected to the upper surface of the lower flange ring (13).

3. The arch-breaking device for lithium battery powder silos as described in claim 2, characterized in that, The second roller (4) is connected to the lower flange ring (13) by bolts (42); A pad (43) is provided between the second roller (4) and the lower flange ring (13); The bolt (42) comprises: a guide section (421) and a threaded section (422); wherein The second roller (4) and the pad (43) are both located on the guide section (421).

4. The arch-breaking device for lithium battery powder silos as described in claim 2, characterized in that, The first roller (3) is connected to the upper flange ring (12) via a pin (31); wherein The lower end of the pin (31) is provided with a first boss (311), and the middle part is provided with a second boss (312). The first roller (3) is sleeved on the second boss (312) to abut against the platform of the first boss (311); The pin (31) is interference-fitted with the mounting hole of the upper flange ring (12), and the platform of the second boss (312) abuts against the upper flange ring (12).

5. The arch-breaking device for lithium battery powder silos as described in claim 2, characterized in that, An upper pressure ring (14) is provided on the upper flange ring (12); The outer ring of the upper pressure ring (14) is connected to the upper flange ring (12), and the inner ring of the upper pressure ring (14) is in concave-convex fit with the upper end of the turntable (2); A pressure ring (15) is provided on the lower flange ring (13); The outer ring of the pressure ring (15) is connected to the lower flange ring (13), and the inner ring of the pressure ring (15) is in a concave-convex fit with the lower end of the turntable (2).

6. The arch-breaking device for lithium battery powder silos as described in claim 5, characterized in that, The upper end face of the turntable (2) is provided with a first annular groove (22), and the first annular groove (22) is connected to the inner wall of the turntable (2); The inner ring of the upper pressure ring (14) is provided with a first annular boss (141) that is adapted to the first annular groove (22). The first annular boss (141) is located in the first annular groove (22).

7. The arch-breaking device for lithium battery powder silos as described in claim 6, characterized in that, A second annular groove (23) is provided in the middle of the lower end face of the turntable (2); The inner ring of the pressure ring (15) is provided with a second annular boss (151) that is adapted to the second annular groove (23). The second annular boss (151) is located in the second annular groove (23).

8. The arch-breaking device for lithium battery powder silos as described in claim 1, characterized in that, The inner wall of the turntable (2) is provided with a second mounting block (24); The lower end of the blade (5) is connected to the second mounting block (24); The upper part of the blade (5) is bent to form an angle α; wherein The angle α is adapted to the angle of the internal bending of the powder silo body (7).

9. The arch-breaking device for lithium battery powder silos as described in claim 1, characterized in that, The drive mechanism (6) includes: a motor (61) and a chain (62); A first sprocket is provided on the drive end of the motor (61); The turntable (2) is provided with a second sprocket (25) on its side wall. The chain (62) is connected to the first sprocket and the second sprocket (25).

10. A lithium battery powder silo, characterized in that, include: The powder silo body (7) has a discharge port (71) at its lower end. The arch-breaking device for lithium battery powder silos as described in any one of claims 1-9 is connected to the discharge port (71).

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